/*
Theme Name: New Exam Studio
Theme URI: https://example.com/new-exam-studio
Author: New Exam Studio
Description: Polished light theme for the New Exam Studio React app and WordPress pages.
Version: 0.3.19
Requires at least: 6.0
Requires PHP: 7.4
Text Domain: new-exam-studio
*/

/* —— Design tokens —— */
:root {
  --nes-font-sans: system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  --nes-color-bg: #f1f5f9;
  --nes-color-surface: #ffffff;
  --nes-color-text: #0f172a;
  --nes-color-muted: #64748b;
  --nes-color-border: #e2e8f0;
  --nes-color-primary: #2563eb;
  --nes-color-primary-dark: #1d4ed8;
  --nes-shadow-sm: 0 1px 2px rgba(15, 23, 42, 0.06);
  --nes-shadow-md: 0 4px 20px rgba(15, 23, 42, 0.08);
  --nes-color-nav-mobile-surface: #e8efff;
  --nes-color-nav-mobile-surface-end: #f1f5f9;
  --nes-shadow-nav-mobile: 0 16px 48px rgba(37, 99, 235, 0.16), 0 6px 18px rgba(15, 23, 42, 0.1);
  --nes-radius: 10px;
  --nes-header-h: 4rem;
  --nes-site-header-offset: 4rem;
  --nes-content-width: 56rem;
  --nes-app-max: 1200px;
  --nes-tutorial-sidebar-width: 380px;
  --nes-tutorial-aside-width: 260px;
  --nes-tutorial-content-gap: 0;
  --nes-tutorial-main-bg: #e8edf4;
  --nes-tutorial-sidebar-bg: #f8fafc;
  --nes-tutorial-sidebar-bg-end: #eef2f8;
  --nes-tutorial-sidebar-border: #d7e0ec;
  --nes-tutorial-article-bg: #ffffff;
  --nes-tutorial-article-bg-soft: #fafbfd;
  --nes-tutorial-article-border: #e2e8f0;
  --nes-tutorial-article-text: #1e293b;
  --nes-tutorial-article-muted: #475569;
  --nes-tutorial-sidebar-unit: #4a5d73;
  --nes-tutorial-sidebar-unit-hover: #3f5063;
  --nes-tutorial-sidebar-unit-open: #344454;
  --nes-tutorial-sidebar-active-text: #047857;
  --nes-tutorial-sidebar-active-bg: #ecfdf5;
  --nes-tutorial-sidebar-active-border: #10b981;
  --nes-tutorial-accent-border-soft: #a7f3d0;
  --nes-tutorial-accent-shadow: rgba(4, 120, 87, 0.12);
  --nes-blog-article-bg: #ffffff;
  --nes-blog-article-bg-soft: #f4f8ff;
  --nes-blog-article-border: #dbe4f0;
  --nes-blog-article-text: #1e293b;
  --nes-blog-article-muted: #475569;
}

/* —— Base typography —— */
html {
  scroll-behavior: smooth;
}

body.nes-theme {
  margin: 0;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  font-family: var(--nes-font-sans);
  font-size: 1rem;
  line-height: 1.6;
  color: var(--nes-color-text);
  background: var(--nes-color-bg);
  -webkit-font-smoothing: antialiased;
}

body.nes-theme .nes-site-main {
  flex: 1;
}

body.nes-nav-open {
  overflow: auto;
}

.nes-skip-link {
  position: absolute;
  left: -9999px;
  top: 0;
  z-index: 100000;
  padding: 0.5rem 1rem;
  background: var(--nes-color-primary);
  color: #fff;
  text-decoration: none;
  border-radius: 0 0 var(--nes-radius) var(--nes-radius);
}

.nes-skip-link:focus {
  left: 1rem;
}

/* —— Header —— */
.nes-site-header {
  position: sticky;
  top: 0;
  z-index: 1000;
  overflow: visible;
  background: rgba(255, 255, 255, 0.98);
  border-bottom: 1px solid var(--nes-color-border);
  box-shadow: var(--nes-shadow-sm);
}

.nes-site-header__inner {
  position: relative;
  z-index: 1002;
  max-width: 1280px;
  margin: 0 auto;
  padding: 0.65rem 1.25rem;
  min-height: var(--nes-header-h);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  box-sizing: border-box;
}

.nes-site-brand-wrap {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  min-width: 0;
}

.nes-site-logo img {
  display: block;
  max-height: 44px;
  width: auto;
}

.nes-site-brand {
  display: flex;
  flex-direction: column;
  text-decoration: none;
  color: var(--nes-color-text);
  min-width: 0;
}

.nes-site-brand__text {
  font-size: 1.125rem;
  font-weight: 700;
  letter-spacing: -0.02em;
  line-height: 1.2;
}

.nes-site-brand__tagline {
  font-size: 0.75rem;
  font-weight: 500;
  color: var(--nes-color-muted);
  line-height: 1.3;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  max-width: 14rem;
}

.nes-site-header__aside {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  margin-left: auto;
  min-width: 0;
}

.nes-site-header__tools {
  display: flex;
  align-items: center;
  flex-shrink: 0;
}

.nes-header-tools {
  display: flex;
  align-items: center;
}

.nes-header-tools .nes-notifications__panel {
  z-index: 1005;
}

/* —— Navigation (desktop) —— */
.nes-site-nav__list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  align-items: center;
  gap: 0.25rem;
}

.nes-site-nav__list li {
  margin: 0;
  display: flex;
  align-items: center;
}

.nes-site-nav__link {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  padding: 0.45rem 0.85rem;
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--nes-color-text);
  text-decoration: none;
  border-radius: 8px;
  transition: background 0.15s, color 0.15s;
}

.nes-site-nav__icon {
  font-size: 1rem;
  line-height: 1;
  flex-shrink: 0;
}

.nes-site-nav__label {
  line-height: 1.2;
}

.nes-site-nav__link:hover,
.nes-site-nav__link:focus-visible {
  background: #f1f5f9;
  color: var(--nes-color-primary);
}

.nes-site-nav__link--cta {
  background: var(--nes-color-primary);
  color: #fff !important;
}

.nes-site-nav__link--cta:hover,
.nes-site-nav__link--cta:focus-visible {
  background: var(--nes-color-primary-dark);
  color: #fff !important;
}

.nes-site-nav__link--muted {
  color: var(--nes-color-muted);
}

.nes-site-nav__list > .menu-item-nes-notifications {
  display: flex;
  align-items: center;
  margin: 0;
}

.nes-site-nav__list > .menu-item-nes-notifications .nes-site-header__tools {
  display: flex;
  align-items: center;
}

.nes-site-nav__list > .menu-item-nes-notifications .nes-notifications__toggle {
  margin: 0;
}

/* Submenus */
.nes-site-nav__list > li.menu-item-has-children {
  position: relative;
}

/* Invisible bridge so the cursor can reach the submenu without losing hover. */
.nes-site-nav__list > li.menu-item-has-children::after {
  content: '';
  position: absolute;
  left: 0;
  right: 0;
  top: 100%;
  height: 0.5rem;
}

.nes-site-nav__submenu-toggle {
  display: none;
  align-items: center;
  justify-content: center;
  width: 1.75rem;
  height: 1.75rem;
  margin: 0;
  padding: 0;
  border: 1px solid var(--nes-color-border);
  border-radius: 6px;
  background: var(--nes-color-bg);
  color: var(--nes-color-text);
  cursor: pointer;
  flex-shrink: 0;
}

.nes-site-nav__submenu-toggle-icon {
  display: none;
  font-size: 1rem;
  font-weight: 500;
  line-height: 1;
}

.nes-site-nav__submenu-toggle:hover,
.nes-site-nav__submenu-toggle:focus-visible {
  background: #f1f5f9;
  outline: none;
}

.nes-site-nav__list .sub-menu {
  list-style: none;
  margin: 0;
  padding: 0.35rem 0;
  min-width: 11rem;
  display: flex;
  flex-direction: column;
  gap: 0.1rem;
  background: var(--nes-color-surface);
  border: 1px solid var(--nes-color-border);
  border-radius: var(--nes-radius);
  box-shadow: var(--nes-shadow-md);
  position: absolute;
  top: 100%;
  left: 0;
  z-index: 1001;
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
  transform: translateY(-4px);
  transition: opacity 0.15s ease, transform 0.15s ease, visibility 0.15s ease;
}

.nes-site-nav__list .sub-menu::before {
  content: '';
  position: absolute;
  left: 0;
  right: 0;
  top: -0.5rem;
  height: 0.5rem;
}

.nes-site-nav__list > li.menu-item-has-children:hover > .sub-menu,
.nes-site-nav__list > li.menu-item-has-children:focus-within > .sub-menu,
.nes-site-nav__list > li.menu-item-has-children.is-submenu-open > .sub-menu {
  opacity: 1;
  visibility: visible;
  pointer-events: auto;
  transform: translateY(0);
}

.nes-site-nav__list .sub-menu .nes-site-nav__link {
  display: block;
  width: 100%;
  box-sizing: border-box;
  padding: 0.5rem 1rem;
  font-size: 0.875rem;
  border-radius: 0;
  white-space: nowrap;
}

.nes-site-nav__list .sub-menu .nes-site-nav__link:hover,
.nes-site-nav__list .sub-menu .nes-site-nav__link:focus-visible {
  background: #f1f5f9;
}

/* Mobile toggle */
.nes-site-nav-toggle {
  display: none;
  flex-shrink: 0;
  gap: 5px;
  border: 1px solid var(--nes-color-border);
  border-radius: 8px;
  background: var(--nes-color-surface);
  cursor: pointer;
  color: var(--nes-color-text);
}

.nes-site-nav-toggle__bar {
  display: block;
  width: 20px;
  height: 2px;
  background: currentColor;
  border-radius: 1px;
}

.nes-site-nav-backdrop {
  display: none !important;
}

@media (max-width: 768px) {
  .nes-site-header__inner {
    flex-wrap: nowrap;
    justify-content: flex-start;
  }

  .nes-site-header__aside {
    margin-left: 0;
    position: static;
    flex: 1 1 auto;
    min-width: 0;
    order: 2;
  }

  .nes-site-nav-toggle {
    display: inline-flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    width: 2.75rem;
    height: 2.75rem;
    padding: 0;
    flex-shrink: 0;
    order: 3;
    position: relative;
    z-index: 1003;
  }

  .nes-site-brand-wrap {
    flex-shrink: 0;
    order: 1;
  }

  .nes-site-nav-toggle__label {
    position: absolute;
    width: 1px;
    height: 1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
  }

  .nes-site-nav-toggle__bar {
    transition: transform 0.2s, opacity 0.2s;
  }

  .nes-site-header--nav-open .nes-site-nav-toggle__bar:nth-child(1) {
    transform: translateY(7px) rotate(45deg);
  }

  .nes-site-header--nav-open .nes-site-nav-toggle__bar:nth-child(2) {
    opacity: 0;
  }

  .nes-site-header--nav-open .nes-site-nav-toggle__bar:nth-child(3) {
    transform: translateY(-7px) rotate(-45deg);
  }

  .nes-site-nav {
    position: absolute;
    top: calc(100% + 0.35rem);
    left: -1.25rem;
    right: -1.25rem;
    z-index: 999;
    width: auto;
    min-height: 13.5rem;
    max-height: min(22rem, calc(100vh - var(--nes-site-header-offset, var(--nes-header-h)) - 1.25rem));
    background: linear-gradient(
      180deg,
      var(--nes-color-nav-mobile-surface) 0%,
      var(--nes-color-nav-mobile-surface-end) 100%
    );
    padding: 0.85rem 1rem 1rem;
    overflow-x: hidden;
    overflow-y: auto;
    -webkit-overflow-scrolling: touch;
    border: 1px solid rgba(37, 99, 235, 0.14);
    border-top: none;
    border-radius: 0 0 14px 14px;
    transform: translateY(-6px);
    opacity: 0;
    visibility: hidden;
    pointer-events: none;
    transition: opacity 0.2s ease, transform 0.2s ease, visibility 0.2s ease;
    box-shadow: var(--nes-shadow-nav-mobile);
  }

  body.nes-nav-open .nes-site-nav {
    transform: translateY(0);
    opacity: 1;
    visibility: visible;
    pointer-events: auto;
  }

  .nes-site-nav__list {
    flex-direction: column;
    align-items: stretch;
    gap: 0.25rem;
  }

  .nes-site-nav__link {
    display: flex;
    align-items: center;
    gap: 0.4rem;
    padding: 0.7rem 0.85rem;
    font-size: 0.95rem;
    border-radius: 10px;
    transition: background 0.15s ease, color 0.15s ease, box-shadow 0.15s ease;
  }

  .nes-site-nav__link:hover,
  .nes-site-nav__link:focus-visible {
    background: rgba(255, 255, 255, 0.88);
    box-shadow: 0 1px 4px rgba(15, 23, 42, 0.06);
  }

  .nes-site-nav__list > .menu-item-nes-notifications {
    position: relative;
    overflow: visible;
    padding: 0.35rem 0.85rem 0.7rem;
  }

  .nes-site-nav__list > .menu-item-nes-notifications .nes-notifications__panel {
    left: 0;
    right: auto;
    width: min(20rem, calc(100vw - 2.5rem));
    max-width: calc(100vw - 2.5rem);
  }

  .nes-site-nav__list > li.menu-item-has-children {
    display: flex;
    flex-wrap: wrap;
    align-items: stretch;
    width: 100%;
    border-radius: 8px;
  }

  .nes-site-nav__list > li.menu-item-has-children::after {
    display: none;
  }

  .nes-site-nav__list > li.menu-item-has-children > a {
    flex: 1 1 auto;
    min-width: 0;
  }

  .nes-site-nav__list > li.menu-item-has-children > a:hover,
  .nes-site-nav__list > li.menu-item-has-children > a:focus-visible {
    background: transparent;
  }

  .nes-site-nav__list > li.menu-item-has-children:hover,
  .nes-site-nav__list > li.menu-item-has-children:focus-within,
  .nes-site-nav__list > li.menu-item-has-children.is-submenu-open {
    background: rgba(255, 255, 255, 0.72);
    box-shadow: 0 1px 4px rgba(15, 23, 42, 0.05);
  }

  .nes-site-nav__list > li.menu-item-has-children:hover > a,
  .nes-site-nav__list > li.menu-item-has-children:focus-within > a,
  .nes-site-nav__list > li.menu-item-has-children.is-submenu-open > a {
    color: var(--nes-color-primary);
  }

  .nes-site-nav__submenu-toggle {
    display: inline-flex;
    flex: 0 0 auto;
    align-self: stretch;
    align-items: center;
    justify-content: center;
    width: 2.75rem;
    height: auto;
    margin: 0;
    padding: 0;
    border: none;
    border-radius: 0;
    background: transparent;
    color: var(--nes-color-muted);
  }

  .nes-site-nav__submenu-toggle:hover,
  .nes-site-nav__submenu-toggle:focus-visible {
    background: transparent;
    color: var(--nes-color-primary);
    outline: none;
  }

  .nes-site-nav__submenu-toggle-icon {
    display: block;
    font-size: 1.35rem;
    font-weight: 400;
    line-height: 1;
  }

  .nes-site-nav__list > li.menu-item-has-children > .sub-menu {
    flex: 1 1 100%;
    position: static;
    width: 100%;
    min-width: 0;
    margin: 0;
    padding: 0 0 0.35rem;
    border: none;
    border-radius: 0;
    box-shadow: none;
    background: transparent;
    opacity: 1;
    visibility: hidden;
    pointer-events: none;
    max-height: 0;
    overflow: hidden;
    transform: none;
    transition: max-height 0.2s ease, visibility 0.2s ease;
  }

  .nes-site-nav__list > li.menu-item-has-children > .sub-menu::before {
    display: none;
  }

  .nes-site-nav__list > li.menu-item-has-children.is-submenu-open > .sub-menu {
    visibility: visible;
    pointer-events: auto;
    max-height: 24rem;
  }

  .nes-site-nav__list .sub-menu .nes-site-nav__link {
    padding: 0.55rem 0.85rem 0.55rem 1.35rem;
    white-space: normal;
  }
}

/* —— Main content (standard pages) —— */
.nes-site-main {
  min-height: calc(100vh - var(--nes-header-h) - 8rem);
}

.nes-content {
  max-width: var(--nes-content-width);
  margin: 0 auto;
  padding: 1rem 0.25rem;
  min-width: 0;
  box-sizing: border-box;
}

.nes-article__title {
  margin: 0 0 1rem;
  font-size: clamp(1.3rem, 2.5vw, 1.65rem);
  font-weight: 500;
  letter-spacing: -0.025em;
  line-height: 1.2;
}

.nes-prose {
  font-size: 1.0625rem;
}

.nes-prose > *:first-child {
  margin-top: 0;
}

.nes-prose h2,
.nes-prose h3,
.nes-prose h4 {
  margin-top: 1.75em;
  margin-bottom: 0.5em;
  line-height: 1.25;
  letter-spacing: -0.02em;
  font-weight: 600;
}

.nes-prose h2 {
  font-size: clamp(1.15rem, 2.2vw, 1.4rem);
}

.nes-prose h3 {
  font-size: clamp(1.05rem, 1.8vw, 1.2rem);
}

.nes-prose h4 {
  font-size: clamp(0.95rem, 1.5vw, 1.05rem);
}

@media (max-width: 640px) {
  .nes-article__title {
    font-size: 1.25rem;
  }

  .nes-prose {
    font-size: 0.9375rem;
    line-height: 1.65;
  }

  .nes-prose h2 {
    font-size: 1.1rem;
  }

  .nes-prose h3 {
    font-size: 1rem;
  }

  .nes-prose h4 {
    font-size: 0.9375rem;
  }
}

.nes-prose a {
  color: var(--nes-color-primary);
  font-weight: 500;
}

.nes-prose a:hover {
  color: var(--nes-color-primary-dark);
}

.nes-content-empty {
  text-align: center;
  padding: 3rem 1rem;
  color: var(--nes-color-muted);
}

/* —— Exam app full-width shell —— */
body.nes-app-page {
  background: #eef2f7;
}

body.nes-app-page .nes-site-brand__tagline {
  display: none;
}

.nes-site-main--app {
  min-height: calc(100vh - var(--nes-header-h) - 4rem);
  padding: 0;
}

.nes-app-shell {
  width: 100%;
  max-width: none;
  margin: 0;
  padding: 0;
}

.nes-app-shell__notice {
  text-align: center;
  color: var(--nes-color-muted);
}

.nes-app-shell__notice--admin {
  margin-top: 0.75rem;
  font-size: 0.875rem;
  color: #92400e;
  background: #fffbeb;
  border: 1px solid #fde68a;
  border-radius: 8px;
  padding: 0.75rem 1rem;
}

.nes-app-page-intro,
.nes-app-page-outro {
  width: 100%;
  max-width: none;
  margin: 0;
  padding: 1.5rem clamp(1rem, 2vw, 1.5rem) 0;
  box-sizing: border-box;
}

.nes-app-page-outro {
  padding-top: 0.75rem;
  padding-bottom: 1.5rem;
}

.nes-app-page-intro + #nes-root,
#nes-root + .nes-app-page-outro {
  margin-top: 0;
}

.nes-app-page-intro .alignwide,
.nes-app-page-intro .alignfull,
.nes-app-page-outro .alignwide,
.nes-app-page-outro .alignfull,
.nes-app-page-intro .wp-block-group,
.nes-app-page-outro .wp-block-group,
.nes-app-page-intro .wp-block-columns,
.nes-app-page-outro .wp-block-columns {
  max-width: none;
}

.nes-app-page-intro .wp-block-group__inner-container,
.nes-app-page-outro .wp-block-group__inner-container {
  max-width: none;
}

/* Widen React app inside theme shell */
body.nes-app-page .nes-app {
  max-width: var(--nes-app-max);
  margin-left: auto;
  margin-right: auto;
  padding: 1.25rem 1.25rem 2.5rem;
}

/* Catalog with left filters: use full width */
body.nes-app-page .nes-app.nes-app--catalog-full {
  max-width: none;
  width: 100%;
  margin: 0;
  box-sizing: border-box;
  padding-left: clamp(1rem, 2vw, 1.5rem);
  padding-right: clamp(1rem, 2vw, 1.5rem);
  overflow-x: clip;
}

/* Test runner: use full width, no outer gutter */
body.nes-app-page .nes-app.nes-app--runner {
  max-width: none;
  width: 100%;
  margin: 0;
  padding: 0;
}

/* Sign in / sign up: compact centered card (not full catalog width) */
body.nes-app-page .nes-app.nes-app--auth {
  max-width: 28rem;
  margin-left: auto;
  margin-right: auto;
  padding-top: 0.75rem;
  padding-bottom: 1.5rem;
}

body.nes-app-page .nes-app.nes-app--auth .nes-app__main {
  padding-top: 0;
  padding-bottom: 0;
}

@media (min-width: 900px) {
  body.nes-app-page .nes-app {
    padding-left: 2rem;
    padding-right: 2rem;
  }

  body.nes-app-page .nes-app.nes-app--catalog-full {
    padding-left: clamp(1.25rem, 2.5vw, 2rem);
    padding-right: clamp(1.25rem, 2.5vw, 2rem);
  }

  body.nes-app-page .nes-app.nes-app--runner {
    padding-left: 0;
    padding-right: 0;
  }

  body.nes-app-page .nes-app.nes-app--auth {
    padding-left: 1.25rem;
    padding-right: 1.25rem;
  }
}

/* Optional: edge-to-edge app background band */
body.nes-app-page .nes-site-main--app {
  background: linear-gradient(180deg, #f8fafc 0%, #eef2f7 100%);
}

/* —— Footer —— */
.nes-site-footer {
  background: var(--nes-color-surface);
  border-top: 1px solid var(--nes-color-border);
  margin-top: auto;
}

.nes-site-footer--compact {
  margin-top: 0;
}

.nes-site-footer--compact .nes-site-footer__inner {
  padding-top: 0.85rem;
  padding-bottom: 0.85rem;
}

.nes-site-footer__inner {
  max-width: 1280px;
  margin: 0 auto;
  padding: 2rem 1.25rem;
  display: grid;
  gap: 2rem;
  align-items: start;
}

.nes-site-footer__inner--three-cols {
  grid-template-columns: minmax(0, 1.25fr) minmax(0, 1fr) minmax(0, 1fr);
}

.nes-site-footer__inner--two-cols {
  grid-template-columns: minmax(0, 1.25fr) minmax(0, 1fr);
}

.nes-site-footer__inner--one-col {
  grid-template-columns: minmax(0, 1fr);
}

.nes-site-footer__column {
  min-width: 0;
}

.nes-site-footer__nav {
  display: block;
}

@media (max-width: 768px) {
  .nes-site-footer__inner--three-cols,
  .nes-site-footer__inner--two-cols,
  .nes-site-footer__inner--one-col {
    grid-template-columns: minmax(0, 1fr);
    gap: 1.25rem;
  }
}

.nes-site-footer__brand strong,
.nes-site-footer__name {
  font-size: 1rem;
  display: block;
  margin-bottom: 0.35rem;
}

.nes-site-footer__tagline {
  margin: 0.35rem 0 0;
  font-size: 0.875rem;
  color: var(--nes-color-muted);
}

.nes-site-footer__extra {
  margin: 0.75rem 0 0;
  font-size: 0.875rem;
  color: var(--nes-color-muted);
}

.nes-site-footer__extra > :first-child {
  margin-top: 0;
}

.nes-site-footer__extra p,
.nes-site-footer__extra ul,
.nes-site-footer__extra ol {
  margin: 0.35rem 0 0;
}

.nes-site-footer__extra a {
  color: var(--nes-color-primary);
  text-decoration: none;
}

.nes-site-footer__extra a:hover {
  text-decoration: underline;
}

.nes-site-footer__copy {
  margin: 0.75rem 0 0;
  font-size: 0.875rem;
  color: var(--nes-color-muted);
}

.nes-site-footer__logo .custom-logo-link {
  display: inline-block;
  margin-bottom: 0.35rem;
}

.nes-site-footer__logo .custom-logo {
  max-height: 40px;
  width: auto;
}

.nes-site-footer__widgets {
  margin-top: 1rem;
}

.nes-site-footer__widget-title {
  margin: 0 0 0.5rem;
  font-size: 0.75rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--nes-color-muted);
}

.nes-site-footer__widget {
  font-size: 0.875rem;
  color: var(--nes-color-muted);
}

.nes-site-footer__widget + .nes-site-footer__widget {
  margin-top: 1rem;
}

.nes-site-footer__heading {
  margin: 0 0 0.65rem;
  font-size: 0.75rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--nes-color-muted);
}

.nes-site-footer__menu {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
  align-items: flex-start;
}

.nes-site-footer__link {
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--nes-color-text);
  text-decoration: none;
}

.nes-site-footer__link:hover {
  color: var(--nes-color-primary);
}

.custom-logo-link {
  display: block;
  line-height: 0;
}

/* —— Blog archive —— */
.nes-site-main--blog {
  background: linear-gradient(180deg, #f8fafc 0%, var(--nes-color-bg) 220px);
}

.nes-blog-header {
  padding: 2.5rem 1.25rem 1.5rem;
}

.nes-blog-header__inner {
  max-width: 1280px;
  margin: 0 auto;
}

.nes-blog-header__eyebrow {
  margin: 0 0 0.5rem;
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--nes-color-primary);
}

.nes-blog-header__title {
  margin: 0;
  font-size: clamp(1.45rem, 3.5vw, 1.9rem);
  font-weight: 700;
  letter-spacing: -0.025em;
  line-height: 1.15;
}

.nes-blog-header__lead,
.nes-blog-header__description {
  margin: 0.85rem 0 0;
  max-width: 38rem;
  font-size: 1.0625rem;
  color: var(--nes-color-muted);
  line-height: 1.6;
}

.nes-blog-header__description p {
  margin: 0;
}

.nes-blog {
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 1.25rem 3rem;
}

.nes-post-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1.5rem;
}

@media (max-width: 1024px) {
  .nes-post-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (max-width: 640px) {
  .nes-post-grid {
    grid-template-columns: minmax(0, 1fr);
    gap: 1.25rem;
  }

  .nes-blog-header {
    padding-top: 1.75rem;
  }
}

/* —— Post cards —— */
.nes-post-card {
  display: flex;
  flex-direction: column;
  min-height: 100%;
  background: var(--nes-color-surface);
  border: 1px solid var(--nes-color-border);
  border-radius: 14px;
  overflow: hidden;
  box-shadow: var(--nes-shadow-sm);
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.nes-post-card:hover {
  transform: translateY(-3px);
  box-shadow: var(--nes-shadow-md);
}

.nes-post-card__media {
  position: relative;
  aspect-ratio: 16 / 9;
  overflow: hidden;
  background: #e2e8f0;
}

.nes-post-media__link {
  display: block;
  width: 100%;
  height: 100%;
}

.nes-post-media__image {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.nes-post-media__placeholder {
  display: block;
  width: 100%;
  height: 100%;
  background: linear-gradient(135deg, #e2e8f0 0%, #cbd5e1 55%, #e8f4fc 100%);
}

.nes-post-card__body {
  display: flex;
  flex-direction: column;
  flex: 1;
  gap: 0.65rem;
  padding: 1.15rem 1.2rem 1.25rem;
}

.nes-post-card__meta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.5rem 0.75rem;
  font-size: 0.8rem;
  color: var(--nes-color-muted);
}

.nes-post-card__category {
  display: inline-block;
  padding: 0.2rem 0.55rem;
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.03em;
  text-transform: uppercase;
  text-decoration: none;
  color: var(--nes-color-primary);
  background: #eff6ff;
  border-radius: 999px;
}

.nes-post-card__category:hover {
  background: #dbeafe;
}

.nes-post-meta__date {
  color: var(--nes-color-muted);
}

.nes-post-card__title {
  margin: 0;
  font-size: clamp(1rem, 2vw, 1.05rem);
  font-weight: 600;
  line-height: 1.35;
  letter-spacing: -0.02em;
}

.nes-post-card__title a {
  color: var(--nes-color-text);
  text-decoration: none;
}

.nes-post-card__title a:hover {
  color: var(--nes-color-primary);
}

.nes-post-card__excerpt {
  flex: 1;
  font-size: 0.9375rem;
  color: var(--nes-color-muted);
  line-height: 1.55;
  overflow: hidden;
}

.nes-post-card__excerpt p {
  margin: 0;
}

.nes-post-card__more {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  margin-top: 0.25rem;
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--nes-color-primary);
  text-decoration: none;
}

.nes-post-card__more:hover {
  color: var(--nes-color-primary-dark);
}

/* —— Pagination —— */
.nes-pagination {
  margin-top: 2.5rem;
}

.nes-pagination__list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 0.35rem;
}

.nes-pagination__item a,
.nes-pagination__item span {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 2rem;
  min-height: 2rem;
  padding: 0.2rem 0.5rem;
  font-size: 0.8125rem;
  font-weight: 600;
  text-decoration: none;
  color: var(--nes-color-text);
  background: var(--nes-color-surface);
  border: 1px solid var(--nes-color-border);
  border-radius: 6px;
}

.nes-pagination__item a:hover {
  border-color: var(--nes-color-primary);
  color: var(--nes-color-primary);
}

.nes-pagination__item--current span {
  background: var(--nes-color-primary);
  border-color: var(--nes-color-primary);
  color: #fff;
}

/* —— Single post & pages —— */
.nes-site-main--single,
.nes-site-main--page {
  background: linear-gradient(180deg, #f8fafc 0%, #eef2f8 280px, var(--nes-color-bg) 520px);
}

.nes-content--article,
.nes-content--page {
  max-width: var(--nes-content-width);
}

:is(.nes-article--single, .nes-article--page) {
  min-width: 0;
  max-width: 100%;
  width: 100%;
  box-sizing: border-box;
  background: linear-gradient(180deg, var(--nes-blog-article-bg) 0%, var(--nes-blog-article-bg-soft) 100%);
  border: 1px solid var(--nes-blog-article-border);
  border-radius: 16px;
  box-shadow: var(--nes-shadow-md);
  overflow: hidden;
}

:is(.nes-article--single, .nes-article--page) .nes-article__header {
  margin-bottom: 0;
  padding: 1.75rem 1.75rem 0;
  text-align: center;
}

:is(.nes-article--single, .nes-article--page) .nes-article__meta {
  color: var(--nes-blog-article-muted);
  justify-content: center;
}

:is(.nes-article--single, .nes-article--page) .nes-article__title {
  text-align: center;
  font-size: clamp(1.25rem, 2.5vw + 0.65rem, 1.75rem);
  font-weight: 600;
  line-height: 1.25;
}

:is(.nes-article--single, .nes-article--page) .nes-article__featured {
  margin: 1.25rem 1.75rem 1.5rem;
  border-color: var(--nes-blog-article-border);
}

:is(.nes-article--single, .nes-article--page) .nes-article__featured--medium,
body.nes-quiz-surface :is(.nes-article--single, .nes-article--page) .nes-article__featured,
:is(.nes-article--single, .nes-article--page):has(.sbmq-quiz, .sbmq-quiz-directory) .nes-article__featured {
  width: min(100%, 40rem) !important;
  max-width: min(100%, 40rem) !important;
  margin-left: auto !important;
  margin-right: auto !important;
}

:is(.nes-article--single, .nes-article--page) .nes-article__featured--medium .nes-post-media__frame,
:is(.nes-article--single, .nes-article--page) .nes-article__featured--medium .nes-post-media__image,
body.nes-quiz-surface :is(.nes-article--single, .nes-article--page) .nes-article__featured .nes-post-media__frame,
body.nes-quiz-surface :is(.nes-article--single, .nes-article--page) .nes-article__featured .nes-post-media__image,
:is(.nes-article--single, .nes-article--page):has(.sbmq-quiz, .sbmq-quiz-directory) .nes-article__featured .nes-post-media__frame,
:is(.nes-article--single, .nes-article--page):has(.sbmq-quiz, .sbmq-quiz-directory) .nes-article__featured .nes-post-media__image {
  width: 100% !important;
  max-width: 100% !important;
  height: auto !important;
  object-fit: contain !important;
}

:is(.nes-article--single, .nes-article--page) .nes-article__body {
  --nes-blog-inset: 1.75rem;
  padding: 0 var(--nes-blog-inset) 1.75rem;
  color: var(--nes-blog-article-text);
  min-width: 0;
  max-width: 100%;
  box-sizing: border-box;
}

:is(.nes-article--single, .nes-article--page) .nes-prose {
  font-size: clamp(0.9375rem, 0.35vw + 0.82rem, 1.0625rem);
  line-height: 1.65;
  overflow-wrap: anywhere;
  word-wrap: break-word;
  word-break: break-word;
  min-width: 0;
  max-width: 100%;
}

:is(.nes-article--single, .nes-article--page) .nes-prose p {
  margin: 0 0 1em;
}

:is(.nes-article--single, .nes-article--page) .nes-prose h1,
:is(.nes-article--single, .nes-article--page) .nes-prose h2,
:is(.nes-article--single, .nes-article--page) .nes-prose h3,
:is(.nes-article--single, .nes-article--page) .nes-prose h4,
:is(.nes-article--single, .nes-article--page) .nes-prose h5,
:is(.nes-article--single, .nes-article--page) .nes-prose h6 {
  margin-top: 1.35em;
  margin-bottom: 0.45em;
  line-height: 1.3;
  font-weight: 600;
  letter-spacing: -0.015em;
  overflow-wrap: anywhere;
  word-break: break-word;
}

:is(.nes-article--single, .nes-article--page) .nes-prose h1 {
  font-size: clamp(1.15rem, 2vw + 0.55rem, 1.45rem);
}

:is(.nes-article--single, .nes-article--page) .nes-prose h2 {
  font-size: clamp(1.08rem, 1.6vw + 0.5rem, 1.3rem);
}

:is(.nes-article--single, .nes-article--page) .nes-prose h3 {
  font-size: clamp(1.02rem, 1.2vw + 0.48rem, 1.18rem);
}

:is(.nes-article--single, .nes-article--page) .nes-prose h4 {
  font-size: clamp(0.98rem, 0.9vw + 0.45rem, 1.08rem);
}

:is(.nes-article--single, .nes-article--page) .nes-prose h5 {
  font-size: clamp(0.94rem, 0.6vw + 0.42rem, 1rem);
}

:is(.nes-article--single, .nes-article--page) .nes-prose h6 {
  font-size: clamp(0.9rem, 0.4vw + 0.4rem, 0.95rem);
}

:is(.nes-article--single, .nes-article--page) .nes-prose img,
:is(.nes-article--single, .nes-article--page) .nes-prose video,
:is(.nes-article--single, .nes-article--page) .nes-prose iframe {
  max-width: 100%;
  height: auto;
}

:is(.nes-article--single, .nes-article--page) .nes-prose pre {
  overflow-x: auto;
  max-width: 100%;
  white-space: pre-wrap;
  overflow-wrap: anywhere;
  word-break: break-word;
}

/* Blog single — Gutenberg block & layout support */
:is(.nes-article--single, .nes-article--page) .entry-content > * {
  margin-block-start: 0;
  margin-block-end: var(--wp--style--block-gap, 1.25rem);
}

:is(.nes-article--single, .nes-article--page) .entry-content > *:last-child {
  margin-block-end: 0;
}

:is(.nes-article--single, .nes-article--page) .entry-content .alignwide {
  margin-left: calc(-0.5 * var(--nes-blog-inset));
  margin-right: calc(-0.5 * var(--nes-blog-inset));
  width: calc(100% + var(--nes-blog-inset));
  max-width: calc(100% + var(--nes-blog-inset));
}

:is(.nes-article--single, .nes-article--page) .entry-content > .alignfull,
:is(.nes-article--single, .nes-article--page) .entry-content .wp-block-group.alignfull,
:is(.nes-article--single, .nes-article--page) .entry-content .wp-block-cover.alignfull,
:is(.nes-article--single, .nes-article--page) .entry-content .wp-block-image.alignfull {
  margin-left: calc(-1 * var(--nes-blog-inset));
  margin-right: calc(-1 * var(--nes-blog-inset));
  width: calc(100% + (2 * var(--nes-blog-inset)));
  max-width: calc(100% + (2 * var(--nes-blog-inset)));
}

:is(.nes-article--single, .nes-article--page) .entry-content .wp-block-group,
:is(.nes-article--single, .nes-article--page) .entry-content .wp-block-columns,
:is(.nes-article--single, .nes-article--page) .entry-content .wp-block-media-text,
:is(.nes-article--single, .nes-article--page) .entry-content .wp-block-cover,
:is(.nes-article--single, .nes-article--page) .entry-content .wp-block-gallery,
:is(.nes-article--single, .nes-article--page) .entry-content .wp-block-embed,
:is(.nes-article--single, .nes-article--page) .entry-content .wp-block-image,
:is(.nes-article--single, .nes-article--page) .entry-content .wp-block-table,
:is(.nes-article--single, .nes-article--page) .entry-content .wp-block-quote,
:is(.nes-article--single, .nes-article--page) .entry-content .wp-block-pullquote,
:is(.nes-article--single, .nes-article--page) .entry-content .wp-block-buttons,
:is(.nes-article--single, .nes-article--page) .entry-content .wp-block-separator,
:is(.nes-article--single, .nes-article--page) .entry-content .wp-block-details,
:is(.nes-article--single, .nes-article--page) .entry-content .wp-block-file,
:is(.nes-article--single, .nes-article--page) .entry-content .wp-block-audio,
:is(.nes-article--single, .nes-article--page) .entry-content .wp-block-video {
  min-width: 0;
  max-width: 100%;
  box-sizing: border-box;
}

:is(.nes-article--single, .nes-article--page) .entry-content .wp-block-group.has-background,
:is(.nes-article--single, .nes-article--page) .entry-content .wp-block-column.has-background {
  padding: 1rem 1.15rem;
  border-radius: 10px;
}

:is(.nes-article--single, .nes-article--page) .entry-content .wp-block-columns {
  gap: 1.25rem;
  flex-wrap: wrap !important;
}

:is(.nes-article--single, .nes-article--page) .entry-content .wp-block-column {
  min-width: 0;
  overflow-wrap: anywhere;
  word-break: break-word;
}

:is(.nes-article--single, .nes-article--page) .entry-content .wp-block-media-text {
  gap: 1rem;
}

:is(.nes-article--single, .nes-article--page) .entry-content .wp-block-media-text__media img,
:is(.nes-article--single, .nes-article--page) .entry-content .wp-block-media-text__media video {
  max-width: 100%;
  height: auto;
}

:is(.nes-article--single, .nes-article--page) .entry-content .wp-block-cover {
  min-height: 12rem;
  border-radius: 10px;
  overflow: hidden;
}

:is(.nes-article--single, .nes-article--page) .entry-content .wp-block-cover.alignfull,
:is(.nes-article--single, .nes-article--page) .entry-content .wp-block-group.alignfull {
  border-radius: 0;
}

:is(.nes-article--single, .nes-article--page) .entry-content .wp-block-gallery {
  --wp--style--unstable-gallery-gap: 0.75rem;
}

:is(.nes-article--single, .nes-article--page) .entry-content .wp-block-gallery .blocks-gallery-grid,
:is(.nes-article--single, .nes-article--page) .entry-content .wp-block-gallery.has-nested-images {
  gap: 0.75rem;
}

:is(.nes-article--single, .nes-article--page) .entry-content .wp-block-image img {
  max-width: 100%;
  height: auto;
}

:is(.nes-article--single, .nes-article--page) .entry-content .wp-block-image.alignleft,
:is(.nes-article--single, .nes-article--page) .entry-content .wp-block-image.alignright {
  max-width: min(100%, 18rem);
}

:is(.nes-article--single, .nes-article--page) .entry-content .wp-block-image .alignleft,
:is(.nes-article--single, .nes-article--page) .entry-content .wp-block-image .alignright {
  max-width: min(100%, 18rem);
}

:is(.nes-article--single, .nes-article--page) .entry-content .wp-block-embed {
  overflow: hidden;
}

:is(.nes-article--single, .nes-article--page) .entry-content .wp-block-embed iframe,
:is(.nes-article--single, .nes-article--page) .entry-content .wp-block-embed video {
  max-width: 100%;
}

:is(.nes-article--single, .nes-article--page) .entry-content .wp-block-embed__wrapper {
  min-width: 0;
}

:is(.nes-article--single, .nes-article--page) .entry-content .wp-block-table {
  overflow-x: auto;
  max-width: 100%;
  -webkit-overflow-scrolling: touch;
}

:is(.nes-article--single, .nes-article--page) .entry-content .wp-block-table table {
  width: 100%;
  min-width: 0;
  border-collapse: collapse;
}

:is(.nes-article--single, .nes-article--page) .entry-content .wp-block-table th,
:is(.nes-article--single, .nes-article--page) .entry-content .wp-block-table td {
  padding: 0.55rem 0.75rem;
  border: 1px solid var(--nes-blog-article-border);
  overflow-wrap: anywhere;
  word-break: break-word;
}

:is(.nes-article--single, .nes-article--page) .entry-content .wp-block-table thead {
  background: rgba(255, 255, 255, 0.7);
}

:is(.nes-article--single, .nes-article--page) .entry-content .wp-block-table tbody tr:nth-child(even) {
  background: rgba(255, 255, 255, 0.45);
}

:is(.nes-article--single, .nes-article--page) .entry-content .wp-block-quote,
:is(.nes-article--single, .nes-article--page) .entry-content .wp-block-pullquote {
  margin-left: 0;
  margin-right: 0;
  padding: 1rem 1.15rem;
  border-left: 4px solid var(--nes-color-primary);
  background: rgba(255, 255, 255, 0.75);
  border-radius: 0 10px 10px 0;
}

:is(.nes-article--single, .nes-article--page) .entry-content .wp-block-pullquote {
  border-left: 0;
  border-top: 4px solid var(--nes-color-primary);
  border-radius: 10px;
  text-align: center;
}

:is(.nes-article--single, .nes-article--page) .entry-content .wp-block-separator {
  border-color: var(--nes-blog-article-border);
}

:is(.nes-article--single, .nes-article--page) .entry-content .wp-block-separator.is-style-wide {
  width: 100%;
}

:is(.nes-article--single, .nes-article--page) .entry-content .wp-block-separator.is-style-dots::before {
  color: var(--nes-blog-article-muted);
}

:is(.nes-article--single, .nes-article--page) .entry-content .wp-block-buttons {
  gap: 0.65rem;
}

:is(.nes-article--single, .nes-article--page) .entry-content .wp-block-button__link {
  border-radius: 8px;
  padding: 0.6rem 1.1rem;
  font-size: 0.9rem;
  font-weight: 500;
  text-decoration: none;
}

:is(.nes-article--single, .nes-article--page) .entry-content .wp-block-file {
  padding: 0.85rem 1rem;
  border: 1px solid var(--nes-blog-article-border);
  border-radius: 10px;
  background: rgba(255, 255, 255, 0.65);
}

:is(.nes-article--single, .nes-article--page) .entry-content .wp-block-file__button {
  border-radius: 8px;
}

:is(.nes-article--single, .nes-article--page) .entry-content .is-layout-flex {
  gap: 0.75rem;
}

:is(.nes-article--single, .nes-article--page) .entry-content .is-layout-grid {
  gap: 0.75rem;
}

:is(.nes-article--single, .nes-article--page) .entry-content .is-layout-constrained > :where(:not(.alignleft):not(.alignright):not(.alignfull)) {
  max-width: var(--wp--style--global--content-size, 42rem);
  margin-left: auto;
  margin-right: auto;
}

:is(.nes-article--single, .nes-article--page) .entry-content .is-layout-constrained > .alignwide {
  max-width: var(--wp--style--global--wide-size, 46rem);
}

:is(.nes-article--single, .nes-article--page) .entry-content > table {
  display: block;
  overflow-x: auto;
  max-width: 100%;
}

:is(.nes-article--single, .nes-article--page) .nes-article__footer {
  margin-top: 0;
  padding: 1.5rem 1.75rem 1.75rem;
  border-top: 1px solid var(--nes-blog-article-border);
  background: rgba(255, 255, 255, 0.55);
}

:is(.nes-article--single, .nes-article--page) .nes-prose blockquote {
  background: rgba(255, 255, 255, 0.75);
  border-left-color: var(--nes-color-primary);
}

@media (max-width: 640px) {
  :is(.nes-article--single, .nes-article--page) .nes-article__header {
    padding: 1.25rem 1rem 0;
  }

  :is(.nes-article--single, .nes-article--page) .nes-article__title {
    font-size: clamp(1.15rem, 4.5vw + 0.4rem, 1.4rem);
  }

  :is(.nes-article--single, .nes-article--page) .nes-article__featured {
    margin: 1rem 1rem 1.25rem;
  }

  :is(.nes-article--single, .nes-article--page) .nes-article__body {
    --nes-blog-inset: 1rem;
    padding: 0 var(--nes-blog-inset) 1.25rem;
  }

  :is(.nes-article--single, .nes-article--page) .nes-prose {
    font-size: clamp(0.9rem, 2.8vw + 0.55rem, 1rem);
    line-height: 1.65;
  }

  :is(.nes-article--single, .nes-article--page) .nes-prose h1 {
    font-size: clamp(1.05rem, 3.5vw + 0.45rem, 1.2rem);
  }

  :is(.nes-article--single, .nes-article--page) .nes-prose h2 {
    font-size: clamp(1rem, 3vw + 0.42rem, 1.12rem);
  }

  :is(.nes-article--single, .nes-article--page) .nes-prose h3 {
    font-size: clamp(0.96rem, 2.5vw + 0.4rem, 1.05rem);
  }

  :is(.nes-article--single, .nes-article--page) .nes-prose h4,
  :is(.nes-article--single, .nes-article--page) .nes-prose h5,
  :is(.nes-article--single, .nes-article--page) .nes-prose h6 {
    font-size: clamp(0.9rem, 2vw + 0.38rem, 0.98rem);
  }

  :is(.nes-article--single, .nes-article--page) .entry-content .wp-block-columns:not(.is-not-stacked-on-mobile) > .wp-block-column {
    flex-basis: 100% !important;
  }

  :is(.nes-article--single, .nes-article--page) .entry-content .wp-block-media-text.is-stacked-on-mobile {
    grid-template-columns: 1fr !important;
  }

  :is(.nes-article--single, .nes-article--page) .entry-content .wp-block-media-text.is-stacked-on-mobile .wp-block-media-text__media {
    grid-column: 1;
    grid-row: 1;
  }

  :is(.nes-article--single, .nes-article--page) .entry-content .wp-block-media-text.is-stacked-on-mobile .wp-block-media-text__content {
    grid-column: 1;
    grid-row: 2;
    padding: 1rem 0 0;
  }

  :is(.nes-article--single, .nes-article--page) .entry-content .wp-block-image.alignleft,
  :is(.nes-article--single, .nes-article--page) .entry-content .wp-block-image.alignright,
  :is(.nes-article--single, .nes-article--page) .entry-content .wp-block-image .alignleft,
  :is(.nes-article--single, .nes-article--page) .entry-content .wp-block-image .alignright {
    float: none;
    display: block;
    margin-left: auto;
    margin-right: auto;
    max-width: 100%;
  }

  :is(.nes-article--single, .nes-article--page) .nes-article__footer {
    padding: 1.25rem 1rem 1.5rem;
  }
}

.nes-article__meta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.5rem 0.85rem;
  margin-bottom: 0.85rem;
  font-size: 0.875rem;
  color: var(--nes-color-muted);
}

.nes-article__featured {
  margin: 0 0 1.75rem;
  border-radius: 14px;
  overflow: hidden;
  border: 1px solid var(--nes-color-border);
  box-shadow: var(--nes-shadow-sm);
}

.nes-article__featured--medium {
  width: min(100%, 40rem) !important;
  max-width: min(100%, 40rem) !important;
  margin-left: auto !important;
  margin-right: auto !important;
}

.nes-article__featured--medium .nes-post-media__frame,
.nes-article__featured--medium .nes-post-media__frame .nes-post-media__image {
  width: 100% !important;
  max-width: 100% !important;
  height: auto !important;
  object-fit: contain !important;
}

.nes-post-media__frame .nes-post-media__image {
  width: 100%;
  height: auto;
  display: block;
}

.nes-article__footer {
  margin-top: 2rem;
  padding-top: 1.5rem;
  border-top: 1px solid var(--nes-color-border);
}

.nes-post-tags {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.nes-post-tags__label {
  font-size: 0.92rem;
  font-weight: 600;
  color: var(--nes-color-text);
}

.nes-post-tags__list {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
}

.nes-post-tags__list a {
  display: inline-block;
  padding: 0.35rem 0.85rem;
  font-size: 0.82rem;
  font-weight: 500;
  line-height: 1.3;
  text-decoration: none;
  color: var(--nes-color-text);
  background: #fff;
  border: 1px solid var(--nes-color-border);
  border-radius: 4px;
  box-shadow: 0 1px 0 rgba(15, 23, 42, 0.04), inset 0 0 0 1px rgba(255, 255, 255, 0.6);
  transition: border-color 0.15s ease, color 0.15s ease, box-shadow 0.15s ease;
}

.nes-post-tags__list a:hover {
  border-color: var(--nes-color-primary);
  color: var(--nes-color-primary);
  box-shadow: 0 1px 3px rgba(15, 23, 42, 0.08);
}

.nes-post-nav {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1rem;
  margin-top: 2.5rem;
  padding-top: 2rem;
  border-top: 1px solid var(--nes-color-border);
}

@media (max-width: 640px) {
  .nes-post-nav {
    grid-template-columns: minmax(0, 1fr);
  }
}

.nes-post-nav__link {
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
  padding: 1rem 1.1rem;
  text-decoration: none;
  background: var(--nes-color-surface);
  border: 1px solid var(--nes-color-border);
  border-radius: 12px;
  transition: border-color 0.15s, box-shadow 0.15s;
}

.nes-post-nav__link:hover {
  border-color: #cbd5e1;
  box-shadow: var(--nes-shadow-sm);
}

.nes-post-nav__link--next {
  text-align: right;
}

.nes-post-nav__label {
  font-size: 0.75rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--nes-color-muted);
}

.nes-post-nav__title {
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--nes-color-text);
  line-height: 1.4;
}

.nes-post-nav__link:hover .nes-post-nav__title {
  color: var(--nes-color-primary);
}

/* —— Prose enhancements —— */
.nes-prose img {
  max-width: 100%;
  height: auto;
  border-radius: 10px;
}

.nes-prose blockquote {
  margin: 1.5rem 0;
  padding: 0.85rem 1.1rem;
  border-left: 4px solid var(--nes-color-primary);
  background: #f8fafc;
  color: #334155;
}

.nes-prose ul,
.nes-prose ol {
  padding-left: 1.35rem;
}

.nes-prose li + li {
  margin-top: 0.35rem;
}

.nes-page-links {
  margin-top: 2rem;
  padding-top: 1rem;
  border-top: 1px solid var(--nes-color-border);
  font-size: 0.9rem;
}

.nes-page-links__label {
  font-weight: 700;
  margin-right: 0.5rem;
}

.nes-content-empty--blog {
  max-width: 28rem;
  margin: 0 auto;
}

.nes-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.6rem 1.1rem;
  font-size: 0.9rem;
  font-weight: 500 !important;
  text-decoration: none;
  border-radius: 8px;
  border: none;
  cursor: pointer;
}

.nes-btn--primary {
  background: var(--nes-color-primary);
  color: #fff;
}

.nes-btn--primary:hover {
  background: var(--nes-color-primary-dark);
  color: #fff;
}

/* —— Comments —— */
.nes-comment-area {
  margin-top: 2.5rem;
  padding-top: 2rem;
  border-top: 1px solid var(--nes-color-border);
}

.nes-comment-area .comment-reply-title {
  margin: 0 0 1rem;
  font-size: clamp(1.1rem, 2vw, 1.2rem);
  font-weight: 600;
  color: var(--nes-color-text);
}

.nes-comment-area .comment-notes,
.nes-comment-area .logged-in-as {
  margin: 0 0 1.25rem;
  font-size: 0.9375rem;
  color: var(--nes-color-muted);
  line-height: 1.55;
}

.nes-comment-area .logged-in-as a {
  color: var(--nes-color-primary);
  text-decoration: none;
}

.nes-comment-area .logged-in-as a:hover {
  text-decoration: underline;
}

.nes-comment-form {
  display: grid;
  gap: 1rem;
}

.nes-comment-form p {
  margin: 0;
}

.nes-comment-form label {
  display: block;
  margin-bottom: 0.4rem;
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--nes-color-text);
}

.nes-comment-form .required {
  color: #dc2626;
}

.nes-comment-form textarea,
.nes-comment-form input[type="text"],
.nes-comment-form input[type="email"],
.nes-comment-form input[type="url"] {
  box-sizing: border-box;
  width: 100%;
  max-width: 100%;
  padding: 0.7rem 0.9rem;
  font-family: inherit;
  font-size: 0.9375rem;
  line-height: 1.5;
  color: var(--nes-color-text);
  background: var(--nes-color-surface);
  border: 1px solid var(--nes-color-border);
  border-radius: 8px;
  box-shadow: var(--nes-shadow-sm);
  transition: border-color 0.15s ease, box-shadow 0.15s ease;
}

.nes-comment-form textarea {
  min-height: 9rem;
  resize: vertical;
}

.nes-comment-form textarea::placeholder,
.nes-comment-form input::placeholder {
  color: #94a3b8;
}

.nes-comment-form textarea:hover,
.nes-comment-form input[type="text"]:hover,
.nes-comment-form input[type="email"]:hover,
.nes-comment-form input[type="url"]:hover {
  border-color: #cbd5e1;
}

.nes-comment-form textarea:focus,
.nes-comment-form input[type="text"]:focus,
.nes-comment-form input[type="email"]:focus,
.nes-comment-form input[type="url"]:focus {
  outline: none;
  border-color: var(--nes-color-primary);
  box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.15);
}

.nes-comment-form .comment-form-author,
.nes-comment-form .comment-form-email,
.nes-comment-form .comment-form-url {
  margin: 0;
}

@media (min-width: 640px) {
  .nes-comment-form {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .nes-comment-form .comment-form-comment,
  .nes-comment-form .comment-form-cookies-consent,
  .nes-comment-form .form-submit,
  .nes-comment-form .comment-notes,
  .nes-comment-form .logged-in-as {
    grid-column: 1 / -1;
  }
}

.nes-comment-form .comment-form-cookies-consent {
  display: flex;
  align-items: flex-start;
  gap: 0.55rem;
  font-size: 0.875rem;
  color: var(--nes-color-muted);
  line-height: 1.45;
}

.nes-comment-form .comment-form-cookies-consent label {
  display: inline;
  margin: 0;
  font-weight: 400;
  cursor: pointer;
}

.nes-comment-form .comment-form-cookies-consent input[type="checkbox"] {
  width: 1rem;
  height: 1rem;
  margin: 0.15rem 0 0;
  accent-color: var(--nes-color-primary);
  flex-shrink: 0;
}

.nes-comment-form .form-submit {
  margin-top: 0.25rem;
}

.nes-comment-form .nes-comment-submit,
.nes-comment-form input[type="submit"] {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.65rem 1.25rem;
  font-family: inherit;
  font-size: 0.9375rem;
  font-weight: 600;
  line-height: 1.2;
  color: #fff;
  background: var(--nes-color-primary);
  border: none;
  border-radius: 8px;
  cursor: pointer;
  box-shadow: var(--nes-shadow-sm);
  transition: background 0.15s ease, box-shadow 0.15s ease;
}

.nes-comment-form .nes-comment-submit:hover,
.nes-comment-form input[type="submit"]:hover {
  background: var(--nes-color-primary-dark);
  color: #fff;
}

.nes-comment-form .nes-comment-submit:focus-visible,
.nes-comment-form input[type="submit"]:focus-visible {
  outline: 2px solid var(--nes-color-primary);
  outline-offset: 2px;
}

/* —— Tutorial Studio (New Exam Tutorial Studio plugin) —— */
body.nes-tutorial-topic {
  overflow-x: clip;
}

body.nes-tutorial-subject {
  overflow-x: clip;
}

body.nes-tutorial-unit {
  overflow-x: clip;
}

body.nes-tutorial-topic .nes-site-main--tutorial,
body.nes-tutorial-subject .nes-site-main--tutorial,
body.nes-tutorial-unit .nes-site-main--tutorial {
  padding: 0;
  max-width: 100%;
  overflow-x: clip;
}

body.nes-tutorial-topic .nes-tutorial-main {
  background: linear-gradient(180deg, var(--nes-tutorial-main-bg) 0%, #dfe6f0 100%);
  width: 100%;
  max-width: none;
  margin: 0;
  padding: 0;
}

body.nes-tutorial-menu-open {
  overflow: hidden;
}

.nes-tutorial-layout {
  display: grid;
  grid-template-columns: minmax(300px, var(--nes-tutorial-sidebar-width)) minmax(0, 1fr);
  gap: 0 var(--nes-tutorial-content-gap);
  min-height: calc(100vh - var(--nes-site-header-offset));
  max-width: 100%;
  margin: 0;
  overflow-x: clip;
}

.nes-tutorial-layout--topic-article {
  grid-template-columns: minmax(300px, var(--nes-tutorial-sidebar-width)) minmax(0, 1fr);
}

.nes-tutorial-aside {
  display: none;
}

.nes-tutorial-sidebar {
  position: sticky;
  top: var(--nes-site-header-offset);
  align-self: start;
  height: calc(100vh - var(--nes-site-header-offset));
  overflow: auto;
  overscroll-behavior: contain;
  background: linear-gradient(180deg, var(--nes-tutorial-sidebar-bg) 0%, var(--nes-tutorial-sidebar-bg-end) 100%);
  border-right: 1px solid var(--nes-tutorial-sidebar-border);
  box-shadow: -4px 0 24px rgba(15, 23, 42, 0.04);
  -webkit-overflow-scrolling: touch;
}

.nes-tutorial-sidebar-col {
  min-width: 0;
}

.nes-tutorial-mobile-toolbar,
.nes-tutorial-backdrop {
  display: none;
}

@media (min-width: 1200px) {
  .nes-tutorial-layout--topic-article {
    grid-template-columns:
      minmax(300px, var(--nes-tutorial-sidebar-width))
      minmax(0, 1fr)
      minmax(220px, var(--nes-tutorial-aside-width));
  }

  .nes-tutorial-aside {
    display: block;
    position: sticky;
    top: var(--nes-site-header-offset);
    align-self: start;
    height: calc(100vh - var(--nes-site-header-offset));
    overflow: auto;
    overscroll-behavior: contain;
    background: linear-gradient(180deg, #ffffff 0%, #f8fafc 100%);
    border-left: 1px solid var(--nes-tutorial-sidebar-border);
    box-shadow: inset 1px 0 0 rgba(255, 255, 255, 0.65);
    -webkit-overflow-scrolling: touch;
  }
}

.nes-tutorial-aside__inner {
  padding: 1rem 0.85rem 1.5rem;
}

.nes-tutorial-aside__section + .nes-tutorial-aside__section {
  margin-top: 1.15rem;
  padding-top: 1.15rem;
  border-top: 1px solid var(--nes-tutorial-sidebar-border);
}

.nes-tutorial-aside__title {
  margin: 0 0 0.65rem;
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--nes-tutorial-article-muted);
}

.nes-tutorial-aside__toc-list {
  list-style: none;
  margin: 0;
  padding: 0;
}

.nes-tutorial-aside__toc-item {
  margin: 0;
}

.nes-tutorial-aside__toc-item--level-3 {
  padding-left: 0.85rem;
}

.nes-tutorial-aside__toc-item--level-4 {
  padding-left: 1.35rem;
}

.nes-tutorial-aside__toc-link {
  display: block;
  padding: 0.35rem 0.45rem;
  border-radius: 6px;
  color: #475569;
  text-decoration: none;
  font-size: 0.8125rem;
  font-weight: 600;
  line-height: 1.45;
  border-left: 2px solid transparent;
  transition: color 0.15s ease, background 0.15s ease, border-color 0.15s ease;
}

.nes-tutorial-aside__toc-link:hover {
  color: var(--nes-tutorial-sidebar-active-text);
  background: var(--nes-tutorial-sidebar-active-bg);
}

.nes-tutorial-aside__toc-link.is-active {
  color: var(--nes-tutorial-sidebar-active-text);
  background: var(--nes-tutorial-sidebar-active-bg);
  border-left-color: var(--nes-tutorial-sidebar-active-border);
  font-weight: 600;
}

.nes-tutorial-aside__nav {
  display: grid;
  gap: 0.55rem;
}

.nes-tutorial-aside__nav-link {
  display: block;
  padding: 0.6rem 0.7rem;
  border-radius: 8px;
  border: 1px solid var(--nes-tutorial-sidebar-border);
  background: #ffffff;
  color: inherit;
  text-decoration: none;
  transition: border-color 0.15s ease, box-shadow 0.15s ease;
}

.nes-tutorial-aside__nav-link:hover {
  border-color: var(--nes-tutorial-sidebar-active-border);
  box-shadow: 0 2px 8px var(--nes-tutorial-accent-shadow);
}

.nes-tutorial-aside__nav-label {
  display: block;
  font-size: 0.6875rem;
  font-weight: 700;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  color: var(--nes-tutorial-article-muted);
  margin-bottom: 0.2rem;
}

.nes-tutorial-aside__nav-title {
  display: block;
  font-size: 0.8125rem;
  font-weight: 600;
  line-height: 1.4;
  color: #1e293b;
}

.nes-tutorial-aside__section--widgets .widget {
  margin: 0 0 1rem;
}

.nes-tutorial-aside__section--widgets .widget-title {
  margin: 0 0 0.55rem;
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--nes-tutorial-article-muted);
}

/* Mobile "On this page" floating TOC */
.nes-tutorial-toc-mobile {
  display: none;
}

body.nes-tutorial-toc-open {
  overflow: hidden;
}

@media (max-width: 1199px) {
  .nes-tutorial-toc-mobile {
    display: block;
    position: fixed;
    right: 1rem;
    bottom: 1rem;
    z-index: 125;
  }

  .nes-tutorial-toc-mobile__toggle {
    display: inline-flex;
    align-items: center;
    gap: 0.45rem;
    padding: 0.7rem 0.95rem;
    border: 1px solid var(--nes-tutorial-accent-border-soft);
    border-radius: 999px;
    background: linear-gradient(135deg, #ffffff 0%, var(--nes-tutorial-sidebar-active-bg) 100%);
    color: var(--nes-tutorial-sidebar-active-text);
    font: inherit;
    font-size: 0.8125rem;
    font-weight: 600;
    line-height: 1.2;
    cursor: pointer;
    box-shadow: 0 8px 24px rgba(4, 120, 87, 0.18), 0 2px 8px rgba(15, 23, 42, 0.08);
    transition: border-color 0.15s ease, box-shadow 0.15s ease, background 0.15s ease;
  }

  .nes-tutorial-toc-mobile__toggle:hover,
  .nes-tutorial-toc-mobile.is-open .nes-tutorial-toc-mobile__toggle {
    border-color: var(--nes-tutorial-sidebar-active-border);
    background: #ffffff;
    box-shadow: 0 10px 28px rgba(4, 120, 87, 0.22), 0 3px 10px rgba(15, 23, 42, 0.1);
  }

  .nes-tutorial-toc-mobile__toggle-icon {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 1.65rem;
    height: 1.65rem;
    border-radius: 999px;
    background: var(--nes-tutorial-sidebar-active-border);
    color: #ffffff;
    flex-shrink: 0;
  }

  .nes-tutorial-toc-mobile__toggle-label {
    white-space: nowrap;
  }

  .nes-tutorial-toc-mobile__backdrop {
    position: fixed;
    inset: 0;
    z-index: 126;
    background: rgba(15, 23, 42, 0.45);
    opacity: 0;
    visibility: hidden;
    pointer-events: none;
    transition: opacity 0.18s ease, visibility 0.18s ease;
  }

  .nes-tutorial-toc-mobile.is-open .nes-tutorial-toc-mobile__backdrop {
    opacity: 1;
    visibility: visible;
    pointer-events: auto;
  }

  .nes-tutorial-toc-mobile__backdrop[hidden] {
    display: block !important;
  }

  .nes-tutorial-toc-mobile__panel {
    position: fixed;
    right: 1rem;
    bottom: calc(1rem + 3.35rem);
    z-index: 127;
    display: flex;
    flex-direction: column;
    width: min(20rem, calc(100vw - 2rem));
    max-height: min(70vh, 28rem);
    border: 1px solid var(--nes-tutorial-accent-border-soft);
    border-radius: 14px;
    background: linear-gradient(180deg, #ffffff 0%, #f8fafc 100%);
    box-shadow: 0 16px 40px rgba(15, 23, 42, 0.18);
    box-sizing: border-box;
    opacity: 0;
    visibility: hidden;
    transform: translateY(0.5rem) scale(0.98);
    transform-origin: bottom right;
    transition: opacity 0.18s ease, visibility 0.18s ease, transform 0.18s ease;
    overflow: hidden;
  }

  .nes-tutorial-toc-mobile.is-open .nes-tutorial-toc-mobile__panel {
    opacity: 1;
    visibility: visible;
    transform: translateY(0) scale(1);
  }

  .nes-tutorial-toc-mobile__panel[hidden] {
    display: flex !important;
  }

  .nes-tutorial-toc-mobile__header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 0.75rem;
    padding: 0.85rem 0.9rem 0.7rem;
    border-bottom: 1px solid var(--nes-tutorial-sidebar-border);
    background: linear-gradient(135deg, var(--nes-tutorial-sidebar-active-bg) 0%, #ffffff 100%);
    flex: 0 0 auto;
  }

  .nes-tutorial-toc-mobile__title {
    margin: 0;
    font-size: 0.75rem;
    font-weight: 700;
    letter-spacing: 0.06em;
    text-transform: uppercase;
    color: var(--nes-tutorial-sidebar-active-text);
  }

  .nes-tutorial-toc-mobile__close {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 1.85rem;
    height: 1.85rem;
    padding: 0;
    border: 1px solid var(--nes-tutorial-sidebar-border);
    border-radius: 999px;
    background: #ffffff;
    color: var(--nes-tutorial-article-muted);
    font-size: 1.25rem;
    line-height: 1;
    cursor: pointer;
    flex-shrink: 0;
    transition: border-color 0.15s ease, color 0.15s ease, background 0.15s ease;
  }

  .nes-tutorial-toc-mobile__close:hover {
    border-color: var(--nes-tutorial-sidebar-active-border);
    color: var(--nes-tutorial-sidebar-active-text);
    background: var(--nes-tutorial-sidebar-active-bg);
  }

  .nes-tutorial-toc-mobile__body {
    flex: 1 1 auto;
    min-height: 0;
    overflow-y: auto;
    overscroll-behavior: contain;
    -webkit-overflow-scrolling: touch;
    padding: 0.65rem 0.75rem 0.85rem;
  }

  .nes-tutorial-toc-mobile__body .nes-tutorial-aside__toc-link {
    font-size: 0.875rem;
  }
}

.nes-tutorial-sidebar__inner {
  padding: 1rem 0.75rem 1.5rem;
}

.nes-tutorial-sidebar__header {
  padding: 0 0.5rem 0.75rem;
  border-bottom: 1px solid var(--nes-tutorial-sidebar-border);
  margin-bottom: 0.75rem;
}

.nes-tutorial-sidebar__title-row {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 0.35rem 0.5rem;
  margin: 0;
  font-size: clamp(0.9rem, 1.5vw, 0.9375rem);
  font-weight: 600;
  line-height: 1.35;
  color: var(--nes-color-text);
}

.nes-tutorial-sidebar__exam {
  margin: 0;
  font-size: inherit;
  font-weight: 600;
  letter-spacing: -0.01em;
  color: var(--nes-color-muted);
  text-transform: none;
}

.nes-tutorial-sidebar__exam-link {
  color: inherit;
  text-decoration: none;
}

.nes-tutorial-sidebar__exam-link:hover {
  color: var(--nes-tutorial-sidebar-active-text);
}

.nes-tutorial-sidebar__title-sep {
  color: #94a3b8;
  font-weight: 500;
  user-select: none;
}

.nes-tutorial-sidebar__subject {
  margin: 0;
  font-size: inherit;
  font-weight: 600;
  line-height: inherit;
  color: var(--nes-color-text);
}

.nes-tutorial-sidebar__subject-link {
  color: inherit;
  text-decoration: none;
}

.nes-tutorial-sidebar__subject-link:hover {
  color: var(--nes-tutorial-sidebar-active-text);
}

.nes-tutorial-sidebar__expand-all {
  display: flex;
  align-items: center;
  gap: 0.45rem;
  margin: 0 0.5rem 0.75rem;
  padding: 0.45rem 0.5rem;
  border-radius: 8px;
  background: #ffffff;
  border: 1px solid var(--nes-tutorial-sidebar-border);
  cursor: pointer;
  font-size: 0.8125rem;
  font-weight: 500;
  color: var(--nes-tutorial-article-muted);
  user-select: none;
  transition: background 0.15s ease, border-color 0.15s ease;
}

.nes-tutorial-sidebar__expand-all:hover {
  background: var(--nes-tutorial-sidebar-active-bg);
  border-color: var(--nes-tutorial-accent-border-soft);
}

.nes-tutorial-sidebar__expand-all-input {
  appearance: none;
  -webkit-appearance: none;
  width: 0.95rem;
  height: 0.95rem;
  margin: 0;
  flex-shrink: 0;
  cursor: pointer;
  border: 1px solid #c7d2e0;
  border-radius: 3px;
  background: #ffffff;
  position: relative;
  transition: background 0.15s ease, border-color 0.15s ease;
}

.nes-tutorial-sidebar__expand-all-input:checked {
  background: var(--nes-tutorial-sidebar-active-border);
  border-color: var(--nes-tutorial-sidebar-active-border);
}

.nes-tutorial-sidebar__expand-all-input::after {
  content: '';
  position: absolute;
  left: 50%;
  top: 44%;
  width: 0.2rem;
  height: 0.42rem;
  border: solid #ffffff;
  border-width: 0 2px 2px 0;
  transform: translate(-50%, -50%) rotate(45deg) scale(0);
  transform-origin: center;
  opacity: 0;
  transition: transform 0.12s ease, opacity 0.12s ease;
}

.nes-tutorial-sidebar__expand-all-input:checked::after {
  transform: translate(-50%, -50%) rotate(45deg) scale(1);
  opacity: 1;
}

.nes-tutorial-sidebar__expand-all-input:focus-visible {
  outline: 2px solid var(--nes-tutorial-sidebar-active-border);
  outline-offset: 1px;
}

.nes-tutorial-sidebar__expand-all-label {
  line-height: 1.3;
}

.nes-tutorial-sidebar__unit {
  border-radius: 8px;
}

.nes-tutorial-sidebar__unit + .nes-tutorial-sidebar__unit {
  margin-top: 0.45rem;
}

.nes-tutorial-sidebar__unit--intro {
  margin-bottom: 0.65rem;
  border: 1px solid #c9d5e3;
  border-radius: 8px;
  background: linear-gradient(180deg, #f3f6fa 0%, #e9eef5 100%);
}

.nes-tutorial-sidebar__unit--intro .nes-tutorial-sidebar__unit-toggle {
  background: #5a6f86;
  font-weight: 600;
}

.nes-tutorial-sidebar__unit--intro .nes-tutorial-sidebar__unit-toggle:hover {
  background: #4a5d73;
}

.nes-tutorial-sidebar__unit--intro.is-open .nes-tutorial-sidebar__unit-toggle {
  background: var(--nes-tutorial-sidebar-unit-open);
}

.nes-tutorial-sidebar__topics-panel {
  display: grid;
  grid-template-rows: 0fr;
  transition: grid-template-rows 0.3s ease;
}

.nes-tutorial-sidebar__unit.is-open .nes-tutorial-sidebar__topics-panel {
  grid-template-rows: 1fr;
}

.nes-tutorial-sidebar__unit:not(.is-open) .nes-tutorial-sidebar__topics-panel {
  pointer-events: none;
}

.nes-tutorial-sidebar__unit-name,
.nes-tutorial-sidebar__topic-label {
  display: block;
  min-width: 0;
  flex: 1 1 auto;
}

.nes-tutorial-sidebar__label-stack {
  display: flex;
  align-items: center;
  min-width: 0;
}

.nes-tutorial-sidebar__label-prefix {
  display: inline-flex;
  align-items: center;
  align-self: stretch;
  flex: 0 0 auto;
  white-space: nowrap;
  line-height: 1.35;
  padding-right: 0.55rem;
  margin-right: 0.55rem;
  border-right: 1px solid rgba(148, 163, 184, 0.55);
}

.nes-tutorial-sidebar__unit-toggle .nes-tutorial-sidebar__label-prefix {
  border-right-color: rgba(255, 255, 255, 0.35);
}

.nes-tutorial-sidebar__topic-link .nes-tutorial-sidebar__label-prefix {
  border-right-color: #cbd5e1;
}

.nes-tutorial-sidebar__topic-link.is-active .nes-tutorial-sidebar__label-prefix {
  border-right-color: rgba(4, 120, 87, 0.35);
}

.nes-tutorial-sidebar__label-content {
  display: flex;
  flex-direction: column;
  gap: 0.12rem;
  min-width: 0;
  flex: 1 1 auto;
}

.nes-tutorial-sidebar__label-main {
  min-width: 0;
  line-height: 1.35;
}

.nes-tutorial-sidebar__label-alt {
  min-width: 0;
  font-size: 0.75rem;
  font-weight: 400;
  line-height: 1.3;
  opacity: 0.88;
}

.nes-tutorial-sidebar__unit-toggle .nes-tutorial-sidebar__label-alt {
  color: rgba(255, 255, 255, 0.92);
}

.nes-tutorial-sidebar__topic-link .nes-tutorial-sidebar__label-alt {
  color: var(--nes-color-muted);
}

.nes-tutorial-sidebar__topic-link.is-active .nes-tutorial-sidebar__label-alt {
  color: var(--nes-tutorial-sidebar-active-text);
  opacity: 0.92;
}

/* Alternate-language script fonts (loaded when selected in Tutorial Studio settings). */
.nes-tutorial-alt-text--telugu {
  font-family: "Noto Sans Telugu", sans-serif;
  font-optical-sizing: auto;
  font-style: normal;
  font-variation-settings: "wdth" 100;
}

.nes-tutorial-sidebar__label-alt.nes-tutorial-alt-text--telugu {
  font-size: 0.9375rem;
  line-height: 1.4;
}

.nes-tutorial-breadcrumb__label-alt.nes-tutorial-alt-text--telugu {
  font-size: 1.12em;
}

.nes-tutorial-alt-text--hindi,
.nes-tutorial-alt-text--marathi {
  font-family: "Noto Sans Devanagari", sans-serif;
  font-optical-sizing: auto;
  font-style: normal;
  font-variation-settings: "wdth" 100;
}

.nes-tutorial-alt-text--tamil {
  font-family: "Noto Sans Tamil", sans-serif;
  font-optical-sizing: auto;
  font-style: normal;
  font-variation-settings: "wdth" 100;
}

.nes-tutorial-alt-text--kannada {
  font-family: "Noto Sans Kannada", sans-serif;
  font-optical-sizing: auto;
  font-style: normal;
  font-variation-settings: "wdth" 100;
}

.nes-tutorial-alt-text--malayalam {
  font-family: "Noto Sans Malayalam", sans-serif;
  font-optical-sizing: auto;
  font-style: normal;
  font-variation-settings: "wdth" 100;
}

.nes-tutorial-alt-text--bengali {
  font-family: "Noto Sans Bengali", sans-serif;
  font-optical-sizing: auto;
  font-style: normal;
  font-variation-settings: "wdth" 100;
}

.nes-tutorial-breadcrumb__label-alt {
  font-size: inherit;
}

.nes-tutorial-sidebar__unit-toggle {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: 100%;
  padding: 0.7rem 0.75rem;
  border: none;
  background: var(--nes-tutorial-sidebar-unit);
  color: #ffffff;
  font: inherit;
  font-weight: 600;
  font-size: 0.875rem;
  text-align: left;
  cursor: pointer;
  border-radius: 8px;
  transition: background 0.15s ease;
}

.nes-tutorial-sidebar__unit-toggle:hover {
  background: var(--nes-tutorial-sidebar-unit-hover);
}

.nes-tutorial-sidebar__unit.is-open .nes-tutorial-sidebar__unit-toggle {
  background: var(--nes-tutorial-sidebar-unit-open);
}

.nes-tutorial-sidebar__unit-toggle .nes-tutorial-sidebar__chevron {
  border-color: #ffffff;
  opacity: 1;
}

.nes-tutorial-sidebar__chevron {
  width: 0.45rem;
  height: 0.45rem;
  border-right: 2px solid currentColor;
  border-bottom: 2px solid currentColor;
  transform: rotate(45deg);
  transition: transform 0.32s ease;
  flex-shrink: 0;
  margin-left: 0.5rem;
}

.nes-tutorial-sidebar__unit.is-open .nes-tutorial-sidebar__chevron {
  transform: rotate(-135deg);
}

.nes-tutorial-sidebar__topics {
  list-style: none;
  margin: 0;
  padding: 0.15rem 0 0.35rem 0.35rem;
  overflow: hidden;
  min-height: 0;
}

.nes-tutorial-sidebar__topic-link {
  display: block;
  padding: 0.45rem 0.55rem 0.45rem 0.65rem;
  border-radius: 0 6px 6px 0;
  color: var(--nes-tutorial-article-muted);
  text-decoration: none;
  font-size: 0.875rem;
  line-height: 1.4;
  border-left: 4px solid #c7d2e0;
}

.nes-tutorial-sidebar__topic-link .nes-tutorial-sidebar__label-main {
  font-weight: 600;
  color: #334155;
}

.nes-tutorial-sidebar__topic-link:hover {
  color: var(--nes-tutorial-sidebar-active-text);
  background: var(--nes-tutorial-sidebar-active-bg);
  border-left-color: var(--nes-tutorial-sidebar-active-border);
}

.nes-tutorial-sidebar__topic-link:hover .nes-tutorial-sidebar__label-main {
  color: var(--nes-tutorial-sidebar-active-text);
}

.nes-tutorial-sidebar__topic-link.is-active {
  color: var(--nes-tutorial-sidebar-active-text);
  background: var(--nes-tutorial-sidebar-active-bg);
  border-left-color: var(--nes-tutorial-sidebar-active-border);
}

.nes-tutorial-sidebar__topic-link.is-active .nes-tutorial-sidebar__label-main {
  color: var(--nes-tutorial-sidebar-active-text);
  font-weight: 700;
}

@media (prefers-reduced-motion: reduce) {
  .nes-tutorial-sidebar__topics-panel,
  .nes-tutorial-sidebar__chevron {
    transition: none;
  }
}

.nes-tutorial-main {
  padding: 1.25rem 1.5rem 2rem 1.25rem;
  max-width: 52rem;
  width: 100%;
  margin: 0;
  box-sizing: border-box;
  min-width: 0;
}

.nes-tutorial-container {
  width: 100%;
  max-width: 100%;
  min-width: 0;
  margin: 0;
  padding: 1.35rem 1.5rem 1.5rem;
  border-radius: 14px;
  border: 1px solid var(--nes-tutorial-article-border);
  background: linear-gradient(180deg, var(--nes-tutorial-article-bg) 0%, var(--nes-tutorial-article-bg-soft) 100%);
  box-shadow: var(--nes-shadow-sm);
  box-sizing: border-box;
  overflow-x: clip;
}

.nes-tutorial-container .nes-tutorial-unit__header,
.nes-tutorial-container .nes-tutorial-subject__header,
.nes-tutorial-container .nes-tutorial-exam__header,
.nes-tutorial-container .nes-tutorial-hub__header {
  margin-bottom: 1.25rem;
}

/* Centered breadcrumb */
.nes-tutorial-breadcrumb {
  display: flex;
  justify-content: center;
  width: 100%;
  max-width: 100%;
  min-width: 0;
  margin: 0 0 1.25rem;
  box-sizing: border-box;
}

.nes-tutorial-breadcrumb__list {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: center;
  gap: 0.25rem 0.15rem;
  list-style: none;
  margin: 0;
  padding: 0.5rem 0.85rem;
  width: 100%;
  max-width: 100%;
  min-width: 0;
  box-sizing: border-box;
  background: linear-gradient(135deg, #f8fffc 0%, var(--nes-tutorial-sidebar-active-bg) 100%);
  border: 1px solid #a7f3d0;
  border-radius: 12px;
  box-shadow: 0 1px 3px rgba(4, 120, 87, 0.08), inset 0 1px 0 rgba(255, 255, 255, 0.8);
}

.nes-tutorial-breadcrumb__item {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  min-width: 0;
}

.nes-tutorial-breadcrumb__sep {
  display: inline-flex;
  align-items: center;
  color: #94a3b8;
  flex-shrink: 0;
}

.nes-tutorial-breadcrumb__link {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 1.65rem;
  height: 1.65rem;
  border-radius: 999px;
  color: var(--nes-tutorial-sidebar-active-text);
  text-decoration: none;
  background: rgba(255, 255, 255, 0.85);
  border: 1px solid #a7f3d0;
  transition: background 0.15s ease, border-color 0.15s ease, transform 0.15s ease;
}

.nes-tutorial-breadcrumb__link:hover {
  background: #fff;
  border-color: var(--nes-tutorial-sidebar-active-border);
  color: var(--nes-tutorial-sidebar-active-text);
  transform: translateY(-1px);
}

.nes-tutorial-breadcrumb__home-icon {
  display: inline-flex;
}

.nes-tutorial-breadcrumb__text {
  color: var(--nes-color-muted);
  font-size: 0.8125rem;
  font-weight: 500;
  line-height: 1.35;
  word-break: break-word;
}

a.nes-tutorial-breadcrumb__text--link {
  color: var(--nes-color-muted);
  text-decoration: none;
}

a.nes-tutorial-breadcrumb__text--link:hover {
  color: var(--nes-tutorial-sidebar-active-text);
}

.nes-tutorial-breadcrumb__item.is-current .nes-tutorial-breadcrumb__current {
  color: var(--nes-tutorial-sidebar-active-text);
  font-size: 0.8125rem;
  font-weight: 700;
  line-height: 1.35;
  word-break: break-word;
}

.nes-article--tutorial .nes-article__title {
  margin-top: 0;
}

.nes-article--tutorial {
  min-width: 0;
  max-width: 100%;
  width: 100%;
  box-sizing: border-box;
  background: linear-gradient(180deg, var(--nes-tutorial-article-bg) 0%, var(--nes-tutorial-article-bg-soft) 100%);
  border: 0;
  border-radius: 0;
  box-shadow: none;
  padding: 0;
  margin: 0;
}

.nes-article--tutorial .nes-tutorial-breadcrumb {
  margin: 0;
  padding: 0.85rem 1rem 0.65rem;
}

.nes-article--tutorial .nes-tutorial-breadcrumb__list {
  border-radius: 0;
}

.nes-article--tutorial .nes-article__header {
  margin: 0;
  padding: 0 1rem 0.65rem;
  border-bottom: 1px solid var(--nes-tutorial-article-border);
  text-align: center;
}

.nes-article--tutorial .nes-article__title {
  text-align: center;
}

.nes-article--tutorial .nes-article__featured {
  margin: 0 1rem 0.85rem;
  border-radius: 10px;
  overflow: hidden;
  border: 1px solid var(--nes-tutorial-article-border);
  box-shadow: none;
}

.nes-article--tutorial .nes-article__featured .nes-post-media__image {
  width: 100%;
  height: auto;
  display: block;
}

/* Tutorial topic body — compact responsive type & WordPress-style tables */
.nes-article--tutorial .nes-prose {
  font-size: clamp(0.8125rem, 0.28vw + 0.74rem, 0.9375rem);
  line-height: 1.65;
  overflow-wrap: anywhere;
  word-wrap: break-word;
  color: var(--nes-tutorial-article-text);
  background: transparent;
  border: 0;
  border-radius: 0;
  padding: 0.75rem 1rem 1rem;
  margin: 0;
  box-shadow: none;
}

.nes-article--tutorial .nes-prose p {
  margin: 0 0 1em;
}

.nes-article--tutorial .nes-prose p[style*="font-size"] {
  font-size: clamp(0.875rem, 0.35vw + 0.7rem, 0.975rem) !important;
  line-height: 1.4 !important;
}

.nes-article--tutorial .nes-prose h1,
.nes-article--tutorial .nes-prose h2,
.nes-article--tutorial .nes-prose h3,
.nes-article--tutorial .nes-prose h4,
.nes-article--tutorial .nes-prose h5,
.nes-article--tutorial .nes-prose h6 {
  margin-top: 1.35em;
  margin-bottom: 0.45em;
  line-height: 1.3;
  font-weight: 600;
  letter-spacing: -0.015em;
  color: var(--nes-color-text);
}

.nes-article--tutorial .nes-prose h1 {
  font-size: clamp(0.98rem, 0.55vw + 0.72rem, 1.12rem) !important;
}

.nes-article--tutorial .nes-prose h2 {
  font-size: clamp(0.94rem, 0.45vw + 0.68rem, 1.05rem) !important;
}

.nes-article--tutorial .nes-prose h3 {
  font-size: clamp(0.9rem, 0.38vw + 0.64rem, 1rem) !important;
}

.nes-article--tutorial .nes-prose h4 {
  font-size: clamp(0.875rem, 0.32vw + 0.6rem, 0.95rem) !important;
}

.nes-article--tutorial .nes-prose h5 {
  font-size: clamp(0.85rem, 0.28vw + 0.56rem, 0.9rem) !important;
}

.nes-article--tutorial .nes-prose h6 {
  font-size: clamp(0.8125rem, 0.24vw + 0.52rem, 0.875rem) !important;
}

.nes-article--tutorial .nes-article__title {
  font-size: clamp(1rem, 0.8vw + 0.72rem, 1.2rem);
  color: #0f172a;
}

.nes-article--tutorial .nes-prose blockquote {
  margin: 1.25rem 0;
  padding: 0.85rem 1rem;
  border-left: 4px solid #93c5fd;
  border-radius: 0 8px 8px 0;
  background: rgba(239, 246, 255, 0.85);
  color: var(--nes-tutorial-article-muted);
}

.nes-article--tutorial .nes-prose a {
  color: #1d4ed8;
}

.nes-article--tutorial .nes-prose a:hover {
  color: #1e40af;
}

.nes-article--tutorial .nes-article__footer {
  margin: 0;
  padding: 0.85rem 1rem 1rem;
  border-top: 1px solid rgba(228, 223, 214, 0.9);
}

.nes-article--tutorial .nes-tutorial-nav {
  margin-top: 0;
  padding-top: 0;
  border-top: 0;
}

.nes-article--tutorial .nes-prose .wp-block-table,
.nes-article--tutorial .nes-prose .nes-prose-table-wrap {
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
  margin: 1.25em 0;
  max-width: 100%;
}

.nes-article--tutorial .nes-prose .wp-block-table table,
.nes-article--tutorial .nes-prose .nes-prose-table-wrap table,
.nes-article--tutorial .nes-prose > table {
  width: 100% !important;
  max-width: 100%;
  border-collapse: collapse;
  margin: 0;
  table-layout: fixed;
  border: 1px solid #c3c4c7;
  background: #fff;
}

.nes-article--tutorial .nes-prose .wp-block-table thead,
.nes-article--tutorial .nes-prose .nes-prose-table-wrap thead,
.nes-article--tutorial .nes-prose > table thead {
  border-bottom: 2px solid #a7aaad;
}

.nes-article--tutorial .nes-prose .wp-block-table th,
.nes-article--tutorial .nes-prose .wp-block-table td,
.nes-article--tutorial .nes-prose .nes-prose-table-wrap th,
.nes-article--tutorial .nes-prose .nes-prose-table-wrap td,
.nes-article--tutorial .nes-prose > table th,
.nes-article--tutorial .nes-prose > table td {
  border: 1px solid #c3c4c7;
  padding: 0.55em 0.75em;
  text-align: start;
  vertical-align: top;
  width: auto !important;
  min-width: 0;
  word-break: break-word;
  overflow-wrap: anywhere;
  font-size: inherit;
  line-height: 1.5;
}

.nes-article--tutorial .nes-prose .wp-block-table th,
.nes-article--tutorial .nes-prose .nes-prose-table-wrap th,
.nes-article--tutorial .nes-prose > table th {
  font-weight: 600;
  background: #f6f7f7;
}

.nes-article--tutorial .nes-prose .wp-block-table tbody tr:nth-child(even),
.nes-article--tutorial .nes-prose .nes-prose-table-wrap tbody tr:nth-child(even),
.nes-article--tutorial .nes-prose > table tbody tr:nth-child(even) {
  background: #f9f9f9;
}

@media (max-width: 768px) {
  .nes-article--tutorial .nes-tutorial-breadcrumb,
  .nes-article--tutorial .nes-article__header,
  .nes-article--tutorial .nes-article__featured,
  .nes-article--tutorial .nes-prose,
  .nes-article--tutorial .nes-article__footer {
    padding-left: 0.75rem;
    padding-right: 0.75rem;
  }

  .nes-article--tutorial .nes-article__featured {
    margin-left: 0.75rem;
    margin-right: 0.75rem;
  }

  .nes-article--tutorial .nes-prose {
    font-size: clamp(0.78rem, 2.4vw, 0.875rem);
    line-height: 1.62;
    padding-top: 0.65rem;
    padding-bottom: 0.85rem;
  }

  .nes-article--tutorial .nes-prose h1 {
    font-size: clamp(0.92rem, 3.2vw, 1.02rem) !important;
  }

  .nes-article--tutorial .nes-prose h2 {
    font-size: clamp(0.88rem, 2.9vw, 0.98rem) !important;
  }

  .nes-article--tutorial .nes-prose h3 {
    font-size: clamp(0.84rem, 2.6vw, 0.94rem) !important;
  }

  .nes-article--tutorial .nes-prose h4,
  .nes-article--tutorial .nes-prose h5,
  .nes-article--tutorial .nes-prose h6 {
    font-size: clamp(0.8rem, 2.3vw, 0.88rem) !important;
  }

  .nes-article--tutorial .nes-article__title {
    font-size: clamp(0.95rem, 3.8vw, 1.08rem);
  }

  .nes-article--tutorial .nes-prose .wp-block-table th,
  .nes-article--tutorial .nes-prose .wp-block-table td,
  .nes-article--tutorial .nes-prose .nes-prose-table-wrap th,
  .nes-article--tutorial .nes-prose .nes-prose-table-wrap td,
  .nes-article--tutorial .nes-prose > table th,
  .nes-article--tutorial .nes-prose > table td {
    padding: 0.4em 0.5em;
    font-size: clamp(0.75rem, 2.2vw, 0.85rem);
  }
}

@media (max-width: 480px) {
  .nes-article--tutorial .nes-prose .wp-block-table,
  .nes-article--tutorial .nes-prose .nes-prose-table-wrap {
    margin-left: 0;
    margin-right: 0;
    padding-bottom: 0;
  }
}

/* Subject landing page */
.nes-tutorial-subject__header {
  margin-bottom: 1.5rem;
}

.nes-tutorial-subject__exam {
  margin: 0 0 0.35rem;
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  color: var(--nes-color-muted);
}

.nes-tutorial-subject__title {
  margin: 0 0 0.5rem;
  font-size: clamp(1.3rem, 2.8vw, 1.6rem);
  font-weight: 700;
  line-height: 1.2;
  letter-spacing: -0.02em;
}

.nes-tutorial-subject__intro {
  margin: 0;
  color: var(--nes-color-muted);
  font-size: 1rem;
}

.nes-tutorial-subject__empty {
  margin: 0;
  padding: 1rem;
  border-radius: var(--nes-radius);
  background: #f8fafc;
  border: 1px solid var(--nes-color-border);
  color: var(--nes-color-muted);
}

.nes-tutorial-subject__units {
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
  width: 100%;
  min-width: 0;
}

.nes-tutorial-subject__unit {
  padding: 1rem 1.1rem;
  border: 1px solid var(--nes-color-border);
  border-radius: var(--nes-radius);
  background: var(--nes-color-surface);
  box-shadow: var(--nes-shadow-sm);
  width: 100%;
  max-width: 100%;
  min-width: 0;
  box-sizing: border-box;
}

.nes-tutorial-subject__unit-title {
  margin: 0 0 0.75rem;
  padding-bottom: 0.55rem;
  border-bottom: 1px solid var(--nes-color-border);
  font-size: clamp(0.9rem, 1.8vw, 0.95rem);
  font-weight: 600;
  color: var(--nes-color-text);
}

.nes-tutorial-subject__topic-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 0.45rem;
}

.nes-tutorial-subject__topic-link {
  display: flex;
  flex-direction: column;
  gap: 0.15rem;
  width: 100%;
  max-width: 100%;
  min-width: 0;
  padding: 0.65rem 0.75rem;
  border-radius: 8px;
  text-decoration: none;
  border: 1px solid transparent;
  box-sizing: border-box;
  transition: background 0.15s ease, border-color 0.15s ease;
}

.nes-tutorial-subject__topic-link:hover {
  background: var(--nes-tutorial-sidebar-active-bg);
  border-color: var(--nes-tutorial-accent-border-soft);
}

.nes-tutorial-subject__topic-link:hover .nes-tutorial-subject__topic-title {
  color: var(--nes-tutorial-sidebar-active-text);
}

.nes-tutorial-subject__topic-title {
  font-weight: 600;
  color: var(--nes-color-text);
}

.nes-tutorial-subject__topic-summary {
  font-size: 0.875rem;
  color: var(--nes-color-muted);
  line-height: 1.4;
}

.nes-tutorial-nav {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0.75rem;
  margin-top: 2rem;
  padding-top: 1.25rem;
  border-top: 1px solid var(--nes-color-border);
}

.nes-tutorial-nav__link {
  display: flex;
  flex-direction: column;
  gap: 0.2rem;
  padding: 0.85rem 1rem;
  border: 1px solid var(--nes-color-border);
  border-radius: var(--nes-radius);
  text-decoration: none;
  background: var(--nes-color-surface);
  box-shadow: var(--nes-shadow-sm);
}

.nes-tutorial-nav__link:hover {
  border-color: var(--nes-tutorial-sidebar-active-border);
  box-shadow: var(--nes-shadow-md);
  background: var(--nes-tutorial-sidebar-active-bg);
}

.nes-tutorial-nav__link:hover .nes-tutorial-nav__title {
  color: var(--nes-tutorial-sidebar-active-text);
}

.nes-tutorial-nav__link--next {
  text-align: right;
  grid-column: 2;
}

.nes-tutorial-nav__label {
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  color: var(--nes-color-muted);
}

.nes-tutorial-nav__title {
  color: var(--nes-color-text);
  font-weight: 600;
}

@media (max-width: 900px) {
  .nes-tutorial-layout {
    display: block;
    min-height: auto;
  }

  .nes-tutorial-sidebar {
    position: fixed;
    z-index: 115;
    width: auto;
    height: auto;
    max-height: min(68vh, 28rem);
    border: 1px solid var(--nes-tutorial-accent-border-soft);
    border-top: none;
    border-radius: 0 0 12px 12px;
    box-shadow: 0 12px 32px rgba(15, 23, 42, 0.16);
    opacity: 0;
    visibility: hidden;
    pointer-events: none;
    transform: translateY(-4px);
    transition: opacity 0.18s ease, visibility 0.18s ease, transform 0.18s ease;
    overflow: auto;
    overscroll-behavior: contain;
    -webkit-overflow-scrolling: touch;
  }

  .nes-tutorial-layout.is-menu-open .nes-tutorial-sidebar {
    opacity: 1;
    visibility: visible;
    pointer-events: auto;
    transform: translateY(0);
  }

  .nes-tutorial-sidebar__header {
    display: none;
  }

  .nes-tutorial-sidebar__expand-all {
    margin: 0 0.5rem 0.5rem;
  }

  .nes-tutorial-sidebar__inner {
    padding: 0.35rem 0.65rem 0.75rem;
  }

  .nes-tutorial-mobile-toolbar {
    display: block;
    position: sticky;
    top: var(--nes-site-header-offset);
    z-index: 120;
    width: 100%;
    max-width: 100%;
    min-width: 0;
    margin: 0 0 0.65rem;
    padding-bottom: 0.1rem;
    background: var(--nes-color-bg);
    box-sizing: border-box;
  }

  .nes-tutorial-mobile-toolbar__toggle {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    width: 100%;
    max-width: 100%;
    min-width: 0;
    padding: 0.65rem 0.85rem;
    border: 1px solid var(--nes-tutorial-accent-border-soft);
    border-radius: 12px;
    background: linear-gradient(135deg, #ffffff 0%, #f8fafc 100%);
    color: var(--nes-color-text);
    font: inherit;
    font-weight: 600;
    font-size: 0.9375rem;
    cursor: pointer;
    box-sizing: border-box;
    box-shadow: 0 2px 8px rgba(15, 23, 42, 0.08);
    transition: border-color 0.15s ease, box-shadow 0.15s ease, border-radius 0.15s ease;
  }

  .nes-tutorial-layout.is-menu-open .nes-tutorial-mobile-toolbar__toggle {
    border-color: var(--nes-tutorial-sidebar-active-border);
    border-bottom-color: var(--nes-tutorial-accent-border-soft);
    border-radius: 12px 12px 0 0;
    box-shadow: none;
  }

  .nes-tutorial-mobile-toolbar__toggle:hover {
    border-color: var(--nes-tutorial-sidebar-active-border);
    box-shadow: 0 4px 12px var(--nes-tutorial-accent-shadow);
  }

  .nes-tutorial-mobile-toolbar__icon {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 1.85rem;
    height: 1.85rem;
    border-radius: 8px;
    background: var(--nes-tutorial-sidebar-active-bg);
    color: var(--nes-tutorial-sidebar-active-text);
    flex-shrink: 0;
  }

  .nes-tutorial-mobile-toolbar__label {
    flex-shrink: 0;
  }

  .nes-tutorial-mobile-toolbar__subject {
    flex: 1;
    min-width: 0;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
    font-size: 0.8125rem;
    font-weight: 500;
    color: var(--nes-color-muted);
    text-align: left;
  }

  .nes-tutorial-mobile-toolbar__chevron {
    display: inline-flex;
    color: var(--nes-color-muted);
    flex-shrink: 0;
    transition: transform 0.2s ease, color 0.2s ease;
  }

  .nes-tutorial-layout.is-menu-open .nes-tutorial-mobile-toolbar__chevron {
    transform: rotate(180deg);
    color: var(--nes-tutorial-sidebar-active-text);
  }

  .nes-tutorial-backdrop {
    display: block;
    position: fixed;
    inset: 0;
    z-index: 110;
    background: rgba(15, 23, 42, 0.45);
    opacity: 0;
    visibility: hidden;
    pointer-events: none;
    transition: opacity 0.18s ease, visibility 0.18s ease;
  }

  .nes-tutorial-layout.is-menu-open .nes-tutorial-backdrop {
    opacity: 1;
    visibility: visible;
    pointer-events: auto;
  }

  .nes-tutorial-backdrop[hidden] {
    display: none !important;
  }

  .nes-tutorial-main {
    padding: 0.85rem 1rem 1.25rem;
    min-width: 0;
    max-width: 100%;
    box-sizing: border-box;
  }

  .nes-tutorial-container {
    padding: 1rem 1rem 1.15rem;
    border-radius: 12px;
  }

  .nes-tutorial-breadcrumb {
    margin: 0 0 0.85rem;
  }

  .nes-tutorial-breadcrumb__list {
    justify-content: center;
    padding: 0.45rem 0.65rem;
    border-radius: 10px;
  }

  .nes-tutorial-breadcrumb__text,
  .nes-tutorial-breadcrumb__item.is-current .nes-tutorial-breadcrumb__current {
    font-size: 0.75rem;
  }

  .nes-tutorial-nav {
    grid-template-columns: 1fr;
  }

  .nes-tutorial-nav__link--next {
    grid-column: 1;
    text-align: left;
  }
}

body.nes-tutorial-hub .nes-site-main--tutorial,
body.nes-tutorial-exam .nes-site-main--tutorial,
.nes-site-main--tutorial-hub,
.nes-site-main--tutorial-exam {
  max-width: 1200px;
  margin: 0 auto;
  padding: 2rem 1.25rem 3rem;
  width: 100%;
  min-width: 0;
  box-sizing: border-box;
  overflow-x: clip;
}

.nes-tutorial-page {
  padding: 0;
  width: 100%;
  max-width: 100%;
  min-width: 0;
  box-sizing: border-box;
}

.nes-tutorial-hub {
  width: 100%;
  max-width: 100%;
  min-width: 0;
  box-sizing: border-box;
}

.nes-tutorial-hub__header,
.nes-tutorial-exam__header,
.nes-tutorial-unit__header {
  margin-bottom: 1.75rem;
}

.nes-tutorial-hub__title,
.nes-tutorial-exam__title,
.nes-tutorial-unit__title {
  margin: 0 0 0.5rem;
  font-size: clamp(1.5rem, 3vw, 2rem);
  font-weight: 600;
  letter-spacing: -0.02em;
}

.nes-tutorial-hub__intro {
  margin: 0;
  color: var(--nes-color-muted);
  max-width: 42rem;
}

.nes-tutorial-hub__grid {
  display: grid;
  width: 100%;
  min-width: 0;
  grid-template-columns: repeat(auto-fill, minmax(min(100%, 11.5rem), 1fr));
  gap: 1rem;
  box-sizing: border-box;
}

.nes-tutorial-hub__card {
  display: flex;
  flex-direction: column;
  gap: 0.45rem;
  min-height: 150px;
  width: 100%;
  max-width: 100%;
  min-width: 0;
  padding: 1.25rem;
  border-radius: 14px;
  border: 1px solid var(--nes-tutorial-accent-border-soft);
  background: linear-gradient(160deg, #ffffff 0%, #f8fffc 100%);
  box-shadow: var(--nes-shadow-sm);
  text-decoration: none;
  box-sizing: border-box;
  transition: box-shadow 0.15s ease, border-color 0.15s ease, background 0.15s ease;
}

.nes-tutorial-hub__card:hover {
  border-color: var(--nes-tutorial-sidebar-active-border);
  box-shadow: var(--nes-shadow-md);
  background: linear-gradient(160deg, #ffffff 0%, var(--nes-tutorial-sidebar-active-bg) 100%);
}

.nes-tutorial-hub__card-name {
  font-size: 1.125rem;
  font-weight: 700;
  color: var(--nes-color-text);
  transition: color 0.15s ease;
  overflow-wrap: anywhere;
  word-break: break-word;
}

.nes-tutorial-hub__card:hover .nes-tutorial-hub__card-name {
  color: var(--nes-tutorial-sidebar-active-text);
}

.nes-tutorial-hub__card-meta {
  font-size: 0.875rem;
  color: var(--nes-color-muted);
}

.nes-tutorial-hub__card-cta {
  margin-top: auto;
  font-size: 0.8125rem;
  font-weight: 600;
  color: var(--nes-tutorial-sidebar-active-text);
}

.nes-tutorial-hub__card:hover .nes-tutorial-hub__card-cta {
  color: var(--nes-tutorial-sidebar-active-border);
}

.nes-tutorial-exam__intro {
  margin: 0;
  color: var(--nes-color-muted);
  max-width: 42rem;
  font-size: 0.9375rem;
}

.nes-tutorial-exam__empty {
  margin: 0;
  padding: 1rem 1.1rem;
  border-radius: var(--nes-radius);
  background: #f8fafc;
  border: 1px solid var(--nes-color-border);
  color: var(--nes-color-muted);
}

.nes-tutorial-exam__catalog {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
  width: 100%;
  min-width: 0;
}

.nes-tutorial-exam__subject-card {
  border: 1px solid var(--nes-tutorial-accent-border-soft);
  border-radius: 16px;
  background: linear-gradient(180deg, #ffffff 0%, #f8fffc 100%);
  box-shadow: var(--nes-shadow-sm);
  overflow: hidden;
  width: 100%;
  max-width: 100%;
  min-width: 0;
  box-sizing: border-box;
}

.nes-tutorial-exam__subject-head {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 1rem;
  padding: 1.15rem 1.25rem;
  border-bottom: 1px solid #e2e8f0;
  background: linear-gradient(135deg, var(--nes-tutorial-sidebar-active-bg) 0%, #f8fafc 100%);
}

.nes-tutorial-exam__subject-info {
  min-width: 0;
}

.nes-tutorial-exam__subject-title {
  margin: 0 0 0.35rem;
  font-size: clamp(1.05rem, 2vw, 1.25rem);
  font-weight: 700;
  line-height: 1.3;
}

.nes-tutorial-exam__subject-title a {
  color: var(--nes-color-text);
  text-decoration: none;
}

.nes-tutorial-exam__subject-title a:hover {
  color: var(--nes-tutorial-sidebar-active-text);
}

.nes-tutorial-exam__subject-meta {
  margin: 0;
  font-size: 0.8125rem;
  color: var(--nes-color-muted);
}

.nes-tutorial-exam__subject-cta {
  flex: 0 0 auto;
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  padding: 0.5rem 0.85rem;
  border-radius: 999px;
  font-size: 0.8125rem;
  font-weight: 600;
  color: var(--nes-tutorial-sidebar-active-text);
  background: #ffffff;
  border: 1px solid var(--nes-tutorial-accent-border-soft);
  text-decoration: none;
  white-space: nowrap;
  transition: background 0.15s ease, border-color 0.15s ease, color 0.15s ease;
}

.nes-tutorial-exam__subject-cta:hover {
  background: var(--nes-tutorial-sidebar-active-bg);
  border-color: var(--nes-tutorial-sidebar-active-border);
  color: var(--nes-tutorial-sidebar-active-text);
}

.nes-tutorial-exam__unit-grid {
  display: grid;
  width: 100%;
  min-width: 0;
  grid-template-columns: repeat(auto-fill, minmax(min(100%, 15rem), 1fr));
  gap: 0.85rem;
  padding: 1rem 1.25rem 1.25rem;
  box-sizing: border-box;
}

.nes-tutorial-exam__unit-card {
  display: flex;
  flex-direction: column;
  min-height: 100%;
  width: 100%;
  max-width: 100%;
  min-width: 0;
  padding: 1rem;
  border-radius: 12px;
  border: 1px solid var(--nes-color-border);
  background: var(--nes-color-surface);
  box-shadow: var(--nes-shadow-sm);
  box-sizing: border-box;
  transition: box-shadow 0.15s ease, border-color 0.15s ease, background 0.15s ease;
}

.nes-tutorial-exam__unit-card:hover {
  border-color: var(--nes-tutorial-sidebar-active-border);
  box-shadow: var(--nes-shadow-md);
  background: linear-gradient(180deg, #ffffff 0%, var(--nes-tutorial-sidebar-active-bg) 100%);
}

.nes-tutorial-exam__unit-card-head {
  display: flex;
  align-items: flex-start;
  gap: 0.65rem;
  margin-bottom: 0.75rem;
}

.nes-tutorial-exam__unit-icon {
  flex: 0 0 auto;
  display: flex;
  align-items: center;
  justify-content: center;
  width: 2.25rem;
  height: 2.25rem;
  border-radius: 8px;
  color: var(--nes-tutorial-sidebar-active-text);
  background: var(--nes-tutorial-sidebar-active-bg);
}

.nes-tutorial-exam__unit-card-titles {
  min-width: 0;
}

.nes-tutorial-exam__unit-title {
  margin: 0 0 0.2rem;
  font-size: 0.95rem;
  font-weight: 600;
  line-height: 1.35;
}

.nes-tutorial-exam__unit-title a {
  color: var(--nes-color-text);
  text-decoration: none;
}

.nes-tutorial-exam__unit-title a:hover {
  color: var(--nes-tutorial-sidebar-active-text);
}

.nes-tutorial-exam__unit-meta {
  margin: 0;
  font-size: 0.75rem;
  color: var(--nes-color-muted);
}

.nes-tutorial-exam__topic-list {
  list-style: none;
  margin: 0 0 0.75rem;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
  flex: 1 1 auto;
}

.nes-tutorial-exam__topic-link {
  display: flex;
  align-items: flex-start;
  gap: 0.45rem;
  padding: 0.35rem 0.4rem;
  border-radius: 6px;
  color: var(--nes-color-text);
  text-decoration: none;
  font-size: 0.8125rem;
  line-height: 1.4;
  transition: background 0.15s ease, color 0.15s ease;
}

.nes-tutorial-exam__topic-link:hover {
  background: var(--nes-tutorial-sidebar-active-bg);
  color: var(--nes-tutorial-sidebar-active-text);
}

.nes-tutorial-exam__topic-dot {
  flex: 0 0 auto;
  width: 6px;
  height: 6px;
  margin-top: 0.45rem;
  border-radius: 50%;
  background: var(--nes-tutorial-sidebar-active-border);
}

.nes-tutorial-exam__topic-label {
  min-width: 0;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.nes-tutorial-exam__unit-card-foot {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.5rem;
  margin-top: auto;
  padding-top: 0.65rem;
  border-top: 1px solid var(--nes-color-border);
}

.nes-tutorial-exam__more-count {
  font-size: 0.75rem;
  color: var(--nes-color-muted);
}

.nes-tutorial-exam__unit-cta {
  display: inline-flex;
  align-items: center;
  gap: 0.25rem;
  margin-left: auto;
  font-size: 0.8125rem;
  font-weight: 600;
  color: var(--nes-tutorial-sidebar-active-text);
  text-decoration: none;
}

.nes-tutorial-exam__unit-cta:hover {
  color: var(--nes-tutorial-sidebar-active-border);
  text-decoration: underline;
}

.nes-tutorial-subject__unit-title a {
  color: inherit;
  text-decoration: none;
}

.nes-tutorial-subject__unit-title a:hover {
  color: var(--nes-tutorial-sidebar-active-text);
}

@media (max-width: 599px) {
  .nes-tutorial-exam__subject-head {
    flex-direction: column;
    align-items: stretch;
  }

  .nes-tutorial-exam__subject-cta {
    align-self: flex-start;
  }
}

.nes-tutorial-unit__exam,
.nes-tutorial-unit__subject {
  margin: 0 0 0.35rem;
  color: var(--nes-color-muted);
  font-size: 0.875rem;
}

.nes-tutorial-unit__intro {
  margin: 0.75rem 0 0;
  color: var(--nes-color-muted);
  font-size: 0.9375rem;
  max-width: 36rem;
}

.nes-tutorial-unit__empty {
  margin: 0;
  padding: 1rem 1.1rem;
  border-radius: var(--nes-radius);
  background: #f8fafc;
  border: 1px solid var(--nes-color-border);
  color: var(--nes-color-muted);
}

.nes-tutorial-unit__topic-grid {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  width: 100%;
  min-width: 0;
  grid-template-columns: repeat(auto-fill, minmax(min(100%, 17rem), 1fr));
  gap: 0.85rem;
  box-sizing: border-box;
}

.nes-tutorial-unit__topic-card {
  margin: 0;
  min-width: 0;
}

.nes-tutorial-unit__topic-link {
  display: flex;
  align-items: stretch;
  gap: 0.75rem;
  min-height: 100%;
  width: 100%;
  max-width: 100%;
  min-width: 0;
  padding: 1rem 1rem 1rem 0.85rem;
  border-radius: 12px;
  text-decoration: none;
  border: 1px solid var(--nes-tutorial-accent-border-soft);
  background: linear-gradient(145deg, #ffffff 0%, #f8fffc 100%);
  box-shadow: var(--nes-shadow-sm);
  box-sizing: border-box;
  transition: box-shadow 0.15s ease, border-color 0.15s ease, background 0.15s ease;
}

.nes-tutorial-unit__topic-link:hover {
  border-color: var(--nes-tutorial-sidebar-active-border);
  box-shadow: var(--nes-shadow-md);
  background: linear-gradient(145deg, #ffffff 0%, var(--nes-tutorial-sidebar-active-bg) 100%);
}

.nes-tutorial-unit__topic-index {
  flex: 0 0 auto;
  display: flex;
  align-items: center;
  justify-content: center;
  width: 2rem;
  align-self: center;
  font-size: 0.8125rem;
  font-weight: 700;
  color: var(--nes-tutorial-sidebar-active-text);
  background: var(--nes-tutorial-sidebar-active-bg);
  border-radius: 999px;
  aspect-ratio: 1;
  transition: background 0.15s ease, color 0.15s ease;
}

.nes-tutorial-unit__topic-link:hover .nes-tutorial-unit__topic-index {
  color: #ffffff;
  background: var(--nes-tutorial-sidebar-active-border);
}

.nes-tutorial-unit__topic-body {
  flex: 1 1 auto;
  display: flex;
  align-items: flex-start;
  gap: 0.65rem;
  min-width: 0;
}

.nes-tutorial-unit__topic-icon {
  flex: 0 0 auto;
  display: flex;
  align-items: center;
  justify-content: center;
  width: 2.25rem;
  height: 2.25rem;
  border-radius: 8px;
  color: var(--nes-tutorial-sidebar-active-text);
  background: var(--nes-tutorial-sidebar-active-bg);
  transition: background 0.15s ease, color 0.15s ease;
}

.nes-tutorial-unit__topic-link:hover .nes-tutorial-unit__topic-icon {
  color: #ffffff;
  background: var(--nes-tutorial-sidebar-active-border);
}

.nes-tutorial-unit__topic-text {
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
  min-width: 0;
}

.nes-tutorial-unit__topic-title {
  font-weight: 600;
  font-size: 0.98rem;
  line-height: 1.35;
  color: var(--nes-color-text);
}

.nes-tutorial-unit__topic-summary {
  font-size: 0.8125rem;
  line-height: 1.45;
  color: var(--nes-color-muted);
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.nes-tutorial-unit__topic-summary--placeholder {
  font-style: italic;
  opacity: 0.85;
}

.nes-tutorial-unit__topic-link:hover .nes-tutorial-unit__topic-title {
  color: var(--nes-tutorial-sidebar-active-text);
}

.nes-tutorial-unit__topic-arrow {
  flex: 0 0 auto;
  display: flex;
  align-items: center;
  align-self: center;
  color: #94a3b8;
  transition: color 0.15s ease, transform 0.15s ease;
}

.nes-tutorial-unit__topic-link:hover .nes-tutorial-unit__topic-arrow {
  color: var(--nes-tutorial-sidebar-active-text);
  transform: translateX(2px);
}

/* —— Scroll to top —— */
.nes-scroll-top {
  position: fixed;
  right: 1.25rem;
  bottom: 1.25rem;
  z-index: 1100;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 2.75rem;
  height: 2.75rem;
  padding: 0;
  border: none;
  border-radius: 999px;
  background: var(--nes-color-primary);
  color: #fff;
  box-shadow: var(--nes-shadow-md);
  cursor: pointer;
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
  transform: translateY(0.5rem);
  transition: opacity 0.2s ease, visibility 0.2s ease, transform 0.2s ease, background 0.15s ease;
}

.nes-scroll-top.is-visible {
  opacity: 1;
  visibility: visible;
  pointer-events: auto;
  transform: translateY(0);
}

.nes-scroll-top:hover,
.nes-scroll-top:focus-visible {
  background: var(--nes-color-primary-dark);
  color: #fff;
}

.nes-scroll-top:focus-visible {
  outline: 2px solid var(--nes-color-primary);
  outline-offset: 3px;
}

.nes-scroll-top__icon {
  display: block;
}

@media (max-width: 768px) {
  .nes-scroll-top {
    right: 1rem;
    bottom: 1rem;
    width: 2.5rem;
    height: 2.5rem;
  }
}

@media (prefers-reduced-motion: reduce) {
  .nes-scroll-top {
    transition: none;
  }
}