:root {
  --brand: #1e3a8a;
  --accent: #fbbf24;
  --ink: #111827;
  --ink-light: #374151;
  --muted: #6b7280;
  --bg: #ffffff;
  --bg-alt: #eff6ff;
  --bg-section: #f9fafb;
  --border: #e5e7eb;
  --border-light: #f3f4f6;
  --success: #10b981;
  --warning: #f59e0b;
  --error: #ef4444;
  --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
  --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
  --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1);
  --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1);
  --radius: 8px;
  --radius-lg: 12px;
  --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  /* Card tokens (no visual change; reuse across card components) */
  --card-ease-spring: cubic-bezier(.34, 1.56, .64, 1);
  --card-hover-translate: -6px;}

.dark {
  --ink: #f9fafb;
  --ink-light: #e5e7eb;
  --muted: #9ca3af;
  --bg: #111827;
  --bg-alt: #1f2937;
  --bg-section: #0f172a;
  --border: #374151;
  --border-light: #1f2937;
}

* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

::selection {
  background-color: var(--accent);
  color: var(--ink);
}

::-moz-selection {
  background-color: var(--accent);
  color: var(--ink);
}

.flag-icon {
  font-size: 1.2em;
  line-height: 1;
  display: inline-block;
  font-family: "Apple Color Emoji", "Segoe UI Emoji", "Noto Color Emoji", "Android Emoji", sans-serif;
}

.fade-in {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.8s ease-out, transform 0.8s ease-out;
}

.fade-in.is-visible {
  opacity: 1;
  transform: translateY(0);
}

.slide-in-left {
  opacity: 0;
  transform: translateX(-50px);
  transition: opacity 0.8s ease-out, transform 0.8s ease-out;
}

.slide-in-left.is-visible {
  opacity: 1;
  transform: translateX(0);
}

.slide-in-right {
  opacity: 0;
  transform: translateX(50px);
  transition: opacity 0.8s ease-out, transform 0.8s ease-out;
}

.slide-in-right.is-visible {
  opacity: 1;
  transform: translateX(0);
}

html {
  font-size: 16px;
  scroll-behavior: smooth;
  scrollbar-width: none;
  -ms-overflow-style: none;
}

html::-webkit-scrollbar {
  display: none;
}

body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
  line-height: 1.6;
  color: var(--ink);
  background-color: var(--bg);
  /* Subtle background pattern (theme-aware) */
  background-image: radial-gradient(color-mix(in srgb, var(--ink) 10%, transparent) 1px, transparent 1px);
  background-size: 22px 22px;
  background-position: 0 0;
  overflow-x: hidden;
  scrollbar-width: none;
  -ms-overflow-style: none;
}

body::-webkit-scrollbar {
  display: none;
}

body.intro-active {
  overflow: hidden;
}

/* Dark mode tuning for background pattern */
.dark body {
  background-image: radial-gradient(color-mix(in srgb, var(--ink) 18%, transparent) 1px, transparent 1px);
}

/* Utility to disable decorative background when needed */
body.decor-none {
  background-image: none !important;
}


.intro-overlay-left,
.intro-overlay-right {
  position: fixed;
  top: 0;
  width: 0;
  height: 100%;
  background: var(--bg);
  z-index: 2;
  transition: width 0.8s cubic-bezier(0.4, 0, 0.2, 1);
}

.intro-overlay-left {
  left: 0;
}

.intro-overlay-right {
  right: 0;
}

.intro-overlay-left.show,
.intro-overlay-right.show {
  width: 4rem;
}

.header {
  position: relative;
  z-index: 3;
}

.header.homepage {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  background: white;
  border-bottom-color: transparent;
  transform: translateY(-100%);
  transition: transform 0.8s cubic-bezier(0.4, 0, 0.2, 1);
}

/* Dark mode adjustments for homepage header */
.dark .header.homepage {
  background: var(--bg);
}

.header.homepage.show {
  transform: translateY(0);
  transition: transform 0.8s cubic-bezier(0.4, 0, 0.2, 1), padding 0.4s cubic-bezier(0.4, 0, 0.2, 1), border-bottom-color 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}

.header.no-intro {
  transform: translateY(0);
}

/* Intro: delay nav text after header slides in */
.header.homepage .header__logo,
.header.homepage .header__nav > *,
.header.homepage .header__actions > * {
  opacity: 0;
  transform: translateY(var(--card-hover-translate));
  transition: opacity 0.4s ease, transform 0.4s ease;
}

/* Partner logo box */
.partner-logo {
  width: 100px;
  height: 80px;
  background: #f3f4f6;
  margin: 0 0 1rem;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius);
}
.partner-logo img {
  max-width: 90%;
  max-height: 70%;
  height: auto;
  width: auto;
}

/*
  Fixed social bar and promo ads
  - Appears on all pages via JS injection
  - Non-intrusive, accessible, responsive
*/
.social-bar {
  position: fixed;
  right: 16px;
  top: 96px;
  transform: none;
  display: flex;
  flex-direction: column;
  gap: 10px;
  z-index: 9999;
}
.social-bar__btn {
  inline-size: 44px;
  block-size: 44px;
  border-radius: 999px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  box-shadow: var(--shadow-md);
  background: var(--bg);
  border: 1px solid var(--border);
  transition: transform .2s var(--card-ease-spring), box-shadow .2s ease;
  text-decoration: none;
}
.social-bar__btn:hover { transform: translateY(-2px); box-shadow: var(--shadow-lg); }
.social-bar__btn::before {
  content: '';
  display: block;
  inline-size: 22px;
  block-size: 22px;
  background-repeat: no-repeat;
  background-position: center;
  background-size: 22px 22px;
}
.social-fb::before { background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='%231877F2'%3E%3Cpath d='M22 12a10 10 0 1 0-11.56 9.88v-6.99H7.9V12h2.54V9.8c0-2.5 1.49-3.89 3.77-3.89 1.09 0 2.23.2 2.23.2v2.45h-1.26c-1.24 0-1.63.77-1.63 1.56V12h2.78l-.44 2.89h-2.34v6.99A10 10 0 0 0 22 12Z'/%3E%3C/svg%3E"); }
.social-zalo::before { background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='%2300A1FF'%3E%3Cpath d='M19 3H5a2 2 0 0 0-2 2v14l3.5-3.5H19a2 2 0 0 0 2-2V5a2 2 0 0 0-2-2Zm-9.7 5.2h1.5l-2.1 5.5H7.2l2.1-5.5ZM9 13.7c.6 0 1 .5 1 1s-.4 1-1 1-1-.5-1-1 .4-1 1-1Zm4.6-5.5c.9 0 1.6.3 2.1.8l-.8.9c-.3-.3-.7-.5-1.2-.5-.9 0-1.5.6-1.5 1.6s.6 1.6 1.5 1.6c.5 0 .9-.2 1.2-.5l.8.9c-.5.5-1.2.8-2.1.8-1.7 0-2.9-1.1-2.9-2.8s1.2-2.8 2.9-2.8Zm5.1 0v5.5h-1.3V8.2h1.3Zm-9.8 0v5.5H7.6V8.2h1.3Z'/%3E%3C/svg%3E"); }
.social-yt::before { background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='%23FF0000'%3E%3Cpath d='M23.5 6.2a3 3 0 0 0-2.1-2.1C19.5 3.5 12 3.5 12 3.5s-7.5 0-9.4.6A3 3 0 0 0 .5 6.2 31.8 31.8 0 0 0 0 12c0 1.9.1 3.8.5 5.8a3 3 0 0 0 2.1 2.1c1.9.5 9.4.5 9.4.5s7.5 0 9.4-.5a3 3 0 0 0 2.1-2.1c.4-2 .5-3.9.5-5.8 0-1.9-.1-3.8-.5-5.8ZM9.7 15.5V8.5l6.2 3.5-6.2 3.5Z'/%3E%3C/svg%3E"); }
.social-tt::before { background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='%23000000'%3E%3Cpath d='M21 8.1a6.8 6.8 0 0 1-3.7-1.1v7.5a6.8 6.8 0 1 1-6.8-6.8 6.7 6.7 0 0 1 1.3.1v3.1a3.7 3.7 0 1 0 2.4 3.5V2.5h3a6.8 6.8 0 0 0 3.8 3.4V8.1Z'/%3E%3C/svg%3E"); }

@media (max-width: 768px) {
  .social-bar { right: 10px; top: 80px; bottom: auto; transform: none; }
}

.fixed-ads {
  position: fixed;
  right: 16px;
  bottom: 16px;
  z-index: 9999;
  background: linear-gradient(180deg, var(--bg), var(--bg-alt));
  color: var(--ink);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg);
  padding: 2px 4px 4px 4px;
  inline-size: min(92vw, 320px);
  transform: translateY(0);
  transition: transform .25s ease, opacity .25s ease;
}
.fixed-ads.is-hide { opacity: 0; transform: translateY(10px); }
.fixed-ads__min {
  position: absolute;
  top: 6px;
  right: 6px;
  inline-size: 28px;
  block-size: 28px;
  border-radius: 6px;
  background: transparent;
  border: 1px solid var(--border);
  color: var(--ink);
  cursor: pointer;
}
.fixed-ads__content { display: grid; gap: 8px; align-items: center; }
.fixed-ads__title { font-size: 1rem; }
.fixed-ads__cta {
  display: inline-block;
  text-decoration: none;
  background: var(--brand);
  color: #fff;
  padding: 8px 12px;
  border-radius: var(--radius);
  box-shadow: var(--shadow-sm);
  /* attention animation */
  will-change: transform;
}
.fixed-ads__cta:hover { filter: brightness(1.05); }

/* Floating + gentle bounce animation for contact button */
@keyframes kgContactFloatBounce {
  0%   { transform: translateY(0) scale(1); }
  20%  { transform: translateY(-4px) scale(1.02); }
  40%  { transform: translateY(0) scale(1); }
  60%  { transform: translateY(-6px) scale(1.04); }
  80%  { transform: translateY(0) scale(1); }
  100% { transform: translateY(0) scale(1); }
}

/* Variant for middle-right floating toggle that keeps base translateY(-50%) */
@keyframes kgContactFloatBounceMid {
  0%   { transform: translateY(-50%) scale(1); }
  20%  { transform: translateY(calc(-50% - 4px)) scale(1.02); }
  40%  { transform: translateY(-50%) scale(1); }
  60%  { transform: translateY(calc(-50% - 6px)) scale(1.04); }
  80%  { transform: translateY(-50%) scale(1); }
  100% { transform: translateY(-50%) scale(1); }
}

@media (prefers-reduced-motion: no-preference) {
  .fixed-ads__cta {
    animation: kgContactFloatBounce 2.8s ease-in-out infinite;
  }
  .fixed-ads__cta:hover {
    animation-duration: 2s;
    transform: translateY(-2px) scale(1.03);
  }
}

/* Apply bounce to minimized round button as well */
@media (prefers-reduced-motion: no-preference) {
  .fixed-ads.is-min .fixed-ads__toggle { animation: kgContactFloatBounceMid 2.8s ease-in-out infinite; }
  .fixed-ads.is-min .fixed-ads__toggle:hover { animation-duration: 2s; transform: translateY(calc(-50% - 2px)) scale(1.03); }
}

.fixed-ads__img {
  width: 100%;
  height: auto;
  max-height: 420px;
  object-fit: cover;
  border-radius: var(--radius);
  background: var(--bg-alt);
}

/* Minimized state: show only a compact toggle button */
.fixed-ads.is-min {
  padding: 0;
  border-radius: 999px;
  border: none;
  background: transparent;
  box-shadow: none;
}
.fixed-ads.is-min .fixed-ads__content { display: none; }
.fixed-ads__toggle {
  display: none;
}
.fixed-ads.is-min .fixed-ads__toggle {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  position: fixed;
  right: 16px;
  top: 50%;
  transform: translateY(-50%);
  background: #f70c0c;
  color: #fff;
  border: none;
  border-radius: 999px;
  inline-size: 64px;
  block-size: 64px;
  padding: 6px;
  text-align: center;
  font-size: 11px;
  line-height: 1.1;
  box-shadow: var(--shadow-lg);
  cursor: pointer;
}

@media print {
  .social-bar, .fixed-ads { display: none !important; }
}

/* --- Social bar toggle-style overrides (new spec) --- */
.social-bar { right: 16px; top: 96px; bottom: auto; transform: none; display: flex; flex-direction: column; gap: 10px; }
.social-bar__btn { position: static; right: auto; bottom: auto; transform: none; opacity: 1; }
.social-kakao::before { background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24'%3E%3Ccircle cx='12' cy='12' r='11' fill='%23FEE500'/%3E%3Cpath d='M12 6.5c-3.4 0-6.2 2.1-6.2 4.8 0 1.7 1.1 3.1 2.8 3.9L8 17.9c-.1.3.2.5.4.3l2.5-1.8c.4 0 .8.1 1.1.1 3.4 0 6.2-2.1 6.2-4.8S15.4 6.5 12 6.5z' fill='%23000000'/%3E%3C/svg%3E"); }
.social-bar__toggle { display: none !important; }
@media (max-width: 768px) { .social-bar { right: 10px; top: 80px; bottom: auto; } }

/* Override Zalo icon to use public/logo/zalo.svg */
.social-zalo::before { background-image: url('/logo/zalo.svg') !important; }

/* --- Overrides: place minimized contact dot into bottom-right corner --- */
.fixed-ads.is-min .fixed-ads__toggle {
  top: auto !important;
  bottom: 16px !important;
  right: 16px !important;
  transform: none !important;
}

@media (prefers-reduced-motion: no-preference) {
  .fixed-ads.is-min .fixed-ads__toggle { animation: kgContactFloatBounce 2.8s ease-in-out infinite !important; }
  .fixed-ads.is-min .fixed-ads__toggle:hover { animation-duration: 2s !important; transform: translateY(-2px) scale(1.03) !important; }
}

.header.homepage.show .header__logo,
.header.homepage.show .header__nav > *,
.header.homepage.show .header__actions > * {
  opacity: 1;
  transform: translateY(0);
}

/* Staggered appearance for main nav items */
.header.homepage.show .header__nav > *:nth-child(1) { transition-delay: 0.95s; }
.header.homepage.show .header__nav > *:nth-child(2) { transition-delay: 1.05s; }
.header.homepage.show .header__nav > *:nth-child(3) { transition-delay: 1.15s; }
.header.homepage.show .header__nav > *:nth-child(4) { transition-delay: 1.25s; }
.header.homepage.show .header__nav > *:nth-child(5) { transition-delay: 1.35s; }
.header.homepage.show .header__nav > *:nth-child(6) { transition-delay: 1.45s; }
.header.homepage.show .header__nav > *:nth-child(7) { transition-delay: 1.55s; }

/* Staggered appearance for header actions (lang/theme/burger) */
.header.homepage.show .header__actions > *:nth-child(1) { transition-delay: 1.10s; }
.header.homepage.show .header__actions > *:nth-child(2) { transition-delay: 1.20s; }
.header.homepage.show .header__actions > *:nth-child(3) { transition-delay: 1.30s; }

@media (max-width: 768px) {
  body {
    padding: 0 1.5rem;
  }
}

@media (max-width: 480px) {
  body {
    padding: 0 0.5rem;
  }
}

img {
  max-width: 100%;
  height: auto;
  display: block;
}

a {
  color: var(--brand);
  text-decoration: none;
  transition: var(--transition);
}

a:hover {
  color: var(--accent);
}

.container {
  width: 100%;
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 1.5rem;
}

.container--narrow {
  max-width: 960px;
}

.container--wide {
  max-width: 1440px;
}

.header {
  position: sticky;
  top: 0;
  background: var(--bg);
  border-bottom: 1px solid transparent;
  z-index: 1000;
  transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
  padding: 1.25rem 0; /* large at top */
}

.header.scrolled {
  padding: 0.5rem 0; /* compact on scroll */
  border-bottom-color: var(--border);
}

.header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0;
  transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}

.header__logo {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--brand);
  display: flex;
  align-items: center;
  gap: 0.5rem;
  transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}

.header__logo img {
  height: 56px;
  width: auto;
  transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}

.header.scrolled .header__logo img {
  height: 35px;
}
/* subtle lateral motion on scroll */
.header .header__logo { transform: translateX(0); }
.header .header__actions { transform: translateX(0); }
.header.scrolled .header__logo { transform: translateX(-10px); }
.header.scrolled .header__actions { transform: translateX(10px); }

.header__nav {
  display: none;
  gap: 2rem;
}

.header__nav a {
  color: var(--ink);
  font-weight: 500;
  position: relative;
  padding: 0.5rem 0;
  line-height: 1.6;
}

.header__nav a:hover {
  color: var(--accent);
}

.header__nav a::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--brand);
  transition: width 0.3s ease;
}

.header__nav a:hover::after {
  width: 100%;
}

.header__nav-dropdown {
  position: relative;
}

.header__nav-toggle {
  color: var(--ink);
  font-weight: 500;
  padding: 0.5rem 1.25rem 0.5rem 0;
  background: none;
  border: none;
  cursor: pointer;
  font-size: 1rem;
  font-family: inherit;
  position: relative;
  transition: var(--transition);
  border-radius: 9999px;
  line-height: 1.6;
}

.header__nav-toggle::after {
  content: "\25BC";
  position: absolute;
  right: 0;
  top: 50%;
  transform: translateY(-50%);
  font-size: 0.625rem;
  transition: transform 0.3s ease;
}

.header__nav-dropdown:hover .header__nav-toggle,
.header__nav-dropdown.active .header__nav-toggle {
  color:  var(--accent);
}

.header__nav-dropdown:hover .header__nav-toggle::after,
.header__nav-dropdown.active .header__nav-toggle::after {
  transform: translateY(-50%) rotate(180deg);
}

.header__nav-submenu {
  position: absolute;
  top: 100%;
  left: 0;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow-lg);
  min-width: 200px;
  padding: 0.5rem 0;
  opacity: 0;
  visibility: hidden;
  transform: translateY(-10px);
  transition: all 0.3s ease;
  z-index: 100;
  margin-top: 0.5rem;
}

.header__nav-dropdown:hover .header__nav-submenu,
.header__nav-dropdown.active .header__nav-submenu {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.header__nav-submenu a {
  display: block;
  padding: 0.75rem 1.25rem;
  color: var(--ink);
  font-weight: 500;
  transition: var(--transition);
}

.header__nav-submenu a::after {
  display: none;
}

.header__nav-submenu a:hover {
  background: var(--bg-alt);
  color:  var(--accent);
}

.header__actions {
  display: flex;
  align-items: center;
  gap: 1rem;
  transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}

.header.scrolled .header__actions {
  gap: 0.75rem;
}

.lang-switcher {
  position: relative;
}

.lang-switcher__btn {
  padding: 0.5rem 2rem 0.5rem 0.75rem;
  border: 1px solid var(--border);
  background: var(--bg);
  color: var(--ink);
  border-radius: 9999px;
  cursor: pointer;
  font-size: 0.875rem;
  font-weight: 500;
  transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
  display: flex;
  align-items: center;
  gap: 0.5rem;
  min-width: 70px;
  height: 40px;
}

.header.scrolled .lang-switcher__btn {
  padding: 0.375rem 1.75rem 0.375rem 0.625rem;
  font-size: 0.8125rem;
  min-width: 60px;
  height: 32px;
}

.lang-switcher__btn:hover {
  border-color: var(--brand);
  background: var(--bg-alt);
  transform: scale(1.05);
}

.lang-switcher__btn::after {
  content: "\25BC";
  position: absolute;
  right: 0.5rem;
  font-size: 0.625rem;
  transition: var(--transition);
}

.lang-switcher.is-open .lang-switcher__btn::after {
  transform: rotate(180deg);
}

.lang-switcher__dropdown {
  position: absolute;
  top: calc(100% + 0.5rem);
  right: 0;
  min-width: 120px;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow-lg);
  opacity: 0;
  visibility: hidden;
  transform: translateY(-10px);
  transition: all 0.2s ease;
  z-index: 1000;
}

.lang-switcher.is-open .lang-switcher__dropdown {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.lang-switcher__option {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.75rem 1rem;
  cursor: pointer;
  transition: var(--transition);
  font-size: 0.875rem;
  border: none;
  background: none;
  width: 100%;
  text-align: left;
  color: var(--ink);
}

.lang-switcher__option:first-child {
  border-radius: var(--radius) var(--radius) 0 0;
}

.lang-switcher__option:last-child {
  border-radius: 0 0 var(--radius) var(--radius);
}

.lang-switcher__option:hover {
  background: var(--bg-alt);
  transform: translateX(4px);
}

.lang-switcher__option.is-active {
  background: var(--brand);
  color: white;
  font-weight: 600;
}

.theme-toggle {
  position: relative;
  width: 48px;
  height: 28px;
  border: 1px solid var(--border);
  background: var(--bg-alt);
  border-radius: 9999px;
  cursor: pointer;
  display: inline-block;
  padding: 0;
  transition: all 0.25s ease;
}

.theme-toggle::after {
  content: "\2600";
  position: absolute;
  top: 3px;
  left: 3px;
  width: 22px;
  height: 22px;
  border-radius: 50%;
  background: var(--bg);
  box-shadow: 0 1px 2px rgba(0,0,0,0.15);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 12px;
  transition: transform 0.25s ease, background 0.25s ease, color 0.25s ease;
}

.theme-toggle.is-dark {
  background: var(--brand);
  border-color: var(--brand);
}

.theme-toggle.is-dark::after {
  transform: translateX(20px);
  background: #fff;
  content: "\263E";;
}

.theme-toggle:focus {
  outline: none;
  box-shadow: 0 0 0 3px rgba(30, 64, 175, 0.25);
}

.theme-toggle:hover {
  border-color: var(--brand);
}

.header.scrolled .theme-toggle {
  width: 44px;
  height: 24px;
}

.header.scrolled .theme-toggle::after {
  top: 2px;
  left: 2px;
  width: 20px;
  height: 20px;
}

/* Hide old icon content if present */
.theme-toggle .theme-icon { display: none; }

.mobile-menu-toggle {
  display: flex;
  width: 40px;
  height: 40px;
  border: 1px solid var(--border);
  background: var(--bg);
  border-radius: 9999px;
  cursor: pointer;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 4px;
  transition: var(--transition);
}

.mobile-menu-toggle:hover {
  border-color: var(--brand);
  background: var(--bg-alt);
  transform: scale(1.05);
}

.mobile-menu-toggle span {
  width: 20px;
  height: 2px;
  background: var(--ink);
  transition: var(--transition);
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.75rem 1.5rem;
  border-radius: 9999px;
  font-weight: 600;
  font-size: 0.875rem;
  border: none;
  cursor: pointer;
  transition: var(--transition);
  text-align: center;
  gap: 0.5rem;
}

.btn--primary {
  background: var(--brand);
  color: white;
}

.btn--primary:hover {
  background: #1e4fd9;
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}

.btn--secondary {
  background: var(--accent);
  color: white;
}

.btn--secondary:hover {
  background: #00a68f;
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}

.btn--outline {
  background: #00000060;
  border: 2px solid var(--accent);
  color: var(--accent);
}

.btn--outline:hover {
  background: var(--brand);
  color: white;
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}

.btn--lg {
  padding: 1rem 2rem;
  font-size: 1rem;
}

.fullpage-container {
  scroll-snap-type: none;
  overflow-y: visible;
  height: auto;
  min-height: 100vh;
  scroll-behavior: smooth;
  -webkit-overflow-scrolling: auto;
}

.fullpage-section {
  height: auto;
  min-height: 0;
  display: block;
  padding: 4rem 0;
  position: relative;
  transition: none;
}

.page-dots {
  display: none;
}

/* Left vertical rail (homepage) */
.left-rail {
  position: fixed;
  left: 0;
  top: 0;
  bottom: 0;
  width: 64px;
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 900; /* under header, over background */
  pointer-events: auto; /* allow hint inside to be clickable */
  opacity: 1;
  transition: opacity 0.25s ease;
}

.left-rail__label {
  writing-mode: vertical-rl;
  transform: rotate(180deg);
  letter-spacing: 0.04em;
  font-weight: 600;
  color: var(--ink);
  opacity: 0.7;
  pointer-events: none;
}

.left-rail__divider {
  position: absolute;
  right: 0;
  top: 5vh;
  bottom: 5vh;
  width: 1px;
  background: var(--border);
  opacity: 0.9;
}

.dark .left-rail__label { color: var(--ink); opacity: 0.8; }
.dark .left-rail__divider { background: #2b3545; }

/* Hidden state for first dot */
.left-rail.is-hidden { opacity: 0; visibility: hidden; }

@media (max-width: 1024px) {
  .left-rail { display: none; }
}

/* Dark mode: improve contrast for page dots */
.dark .page-dot {
  background: rgba(255, 255, 255, 0.2);
  border-color: rgba(255, 255, 255, 0.4);
}
.dark .page-dot:hover {
  background: rgba(255, 255, 255, 0.5);
}
.dark .page-dot.active {
  background: white;
  border-color: white;
}

.page-dot::after {
  content: attr(data-label);
  position: absolute;
  right: 2rem;
  top: 50%;
  transform: translateY(-50%);
  white-space: nowrap;
  background: rgba(0, 0, 0, 0.9);
  color: white;
  padding: 0.5rem 1rem;
  border-radius: 4px;
  font-size: 0.875rem;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.3s ease;
}

.page-dot:hover::after {
  opacity: 1;
}

[data-theme="dark"] .page-dot {
  background: rgba(255, 255, 255, 0.2);
  border-color: rgba(255, 255, 255, 0.4);
}

[data-theme="dark"] .page-dot:hover {
  background: rgba(255, 255, 255, 0.5);
}

[data-theme="dark"] .page-dot.active {
  background: white;
  border-color: white;
}

[data-theme="dark"] .page-dot::after {
  background: rgba(255, 255, 255, 0.9);
  color: var(--ink);
}

/* Bottom-right scroll hint (under dots) */
.page-scroll-hint {
  position: absolute; /* inside left rail */
  left: 50%;
  top: 50%;
  transform: translate(-50%, -50%);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.4rem;
  /* Adapt to theme via --ink (light -> dark text, dark mode -> light text) */
  color: var(--ink);
  z-index: 1000;
  opacity: 0.9;
  cursor: pointer;
  user-select: none;
  text-transform: uppercase;
  font-size: 0.75rem;
  letter-spacing: 0.15em;
  transition: opacity 0.3s ease, transform 0.3s ease;
  animation: hintFadeIn 0.9s ease both 1s;
}

.page-scroll-text {
  /* make only the text vertical so arrow alignment stays normal */
  writing-mode: vertical-rl;
  text-orientation: mixed;
  line-height: 1;
}

.page-scroll-hint:hover { opacity: 1; transform: translateY(-1px); }

.page-scroll-arrow {
  /* Downward triangle arrow */
  width: 0;
  height: 0;
  border-left: 7px solid transparent;
  border-right: 7px solid transparent;
  border-top: 9px solid currentColor; /* points down */
  display: block;
  margin-top: 6px;
  animation: arrowBounce 1.8s infinite;
}

@keyframes arrowBounce {
  0%, 20%, 50%, 80%, 100% { transform: translateY(0); }
  40% { transform: translateY(4px); }
  60% { transform: translateY(2px); }
}

@keyframes hintFadeIn {
  from { opacity: 0; transform: translateY(8px); }
  to { opacity: 0.9; transform: translateY(0); }
}

@media (max-width: 768px) {
  .page-scroll-hint { display: none; }
}

@media (max-width: 768px) {
  .page-dots {
    right: 1rem;
  }

  .page-dot::after {
    display: none;
  }
}

.hero-fullpage {
  background: linear-gradient(135deg, rgba(30, 64, 175, 0.85) 0%, rgba(30, 58, 138, 0.85) 100%);
  color: white;
  position: relative;       /* ensure ::before is positioned relative to this block */
  overflow: hidden;         /* contain pseudo-element */
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 6rem 0;
}

.hero-fullpage::before {
  content: '';
  position: absolute;
  inset: 0;
  background-image: url('/bgimages/mainbg.png'); /* default fallback */
  background-size: cover;
  background-position: center;
  opacity: 1;
  z-index: 0;               /* behind content but above element background if needed */
  transform: scale(var(--hero-scale, 1));
  will-change: transform;
}

/* VI homepage: use new SVG backgrounds by default (slideshow will override when active) */
html[lang="vi"] .hero-fullpage::before {
  background-image: url('/bgimages/mainbg1.svg');
}

/* EN homepage: reuse the same vibrant hero wallpaper */
html[lang="en"] .hero-fullpage::before {
  background-image: url('/bgimages/mainbg1.svg');
}

/* When slideshow is enabled via JS, hide the ::before single image */
.hero-fullpage.slideshow::before {
  display: none;
}
/*
Hero fullpage content */
/* Slideshow background layers */
.hero-bg {
  position: absolute;
  inset: 0;
  background-size: cover;
  background-position: center;
  z-index: 0;
  opacity: 0;
  /* slight zoom and offscreen start; include hero parallax scale */
  transform: translateX(8%) scale(var(--hero-scale, 1));
  transition: opacity 1.2s ease, transform 1.2s var(--card-ease-spring);
  will-change: opacity, transform;
}

.hero-bg.is-active {
  opacity: 1;
  transform: translateX(0) scale(var(--hero-scale, 1));
}

.hero-bg.is-exit {
  opacity: 0;
  transform: translateX(-8%) scale(var(--hero-scale, 1));
  transition: opacity 1s ease, transform 1s ease;
}

/* ensure content sits above the pseudo background */
.hero-fullpage > *:not(.hero-bg) {
  position: relative;
  z-index: 1;
}

.scroll-indicator {
  position: absolute;
  bottom: 2rem;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.5rem;
  color: white;
  z-index: 2;
  animation: bounce 2s infinite;
}

.scroll-arrow {
  width: 24px;
  height: 24px;
  border-left: 2px solid white;
  border-bottom: 2px solid white;
  transform: rotate(-45deg);
}

@keyframes bounce {
  0%, 20%, 50%, 80%, 100% {
    transform: translateX(-50%) translateY(0);
  }
  40% {
    transform: translateX(-50%) translateY(-10px);
  }
  60% {
    transform: translateX(-50%) translateY(-5px);
  }
}

.hero {
  position: relative;
  min-height: 600px;
  display: flex;
  align-items: center;
  background: linear-gradient(135deg, rgb(30 175 142 / 85%) 0%, rgb(229 215 46 / 85%) 100%);
  color: white;
  overflow: hidden;
  border-radius: 25px;
  margin: 0 2rem;
  padding: 4rem 3rem;
  z-index: 2;
}

.hero::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: none;
  z-index: 0;
  transition: transform 0.6s ease;
}

.hero:hover::before {
  transform: scale(1.05);
}

.jobs-hero {
  background-size: 110%;
  background-position: center;
  background-repeat: no-repeat;
  transition: background-size 0.6s ease;
}

.jobs-hero:hover {
  background-size: 115%;
}

.study-hero {
  background-size: 110%;
  background-position: center;
  background-repeat: no-repeat;
  transition: background-size 0.6s ease;
}

.study-hero:hover {
  background-size: 115%;
}

.study-hero .hero__content {
  color: rgba(255, 255, 255, 0.92) !important;
}

/* Jobs page: disable card animations */
#jobs-list .card {
  transform: none !important;
  transition: none !important;
}

#jobs-list .card:hover,
#jobs-list .card.is-inview:hover {
  transform: none !important;
  box-shadow: inherit;
}

#jobs-list .reveal-up {
  opacity: 1 !important;
  transform: none !important;
  transition: none !important;
}

/* Steps grid styling (Jobs page - Quy trình tuyển dụng) */
.steps-grid > div {
  text-align: center;
  padding: 2rem;
  background: var(--bg);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-sm);
}

.steps-grid > div > div:first-child {
  width: 64px;
  height: 64px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.25rem;
  font-weight: 800;
  margin: 0 auto 1rem;
}

.steps-grid > div:nth-child(1) > div:first-child { background: #E3F2FD !important; color: #0D47A1 !important; }
.steps-grid > div:nth-child(2) > div:first-child { background: #E8F5E9 !important; color: #1B5E20 !important; }
.steps-grid > div:nth-child(3) > div:first-child { background: #FFF3E0 !important; color: #E65100 !important; }
.steps-grid > div:nth-child(4) > div:first-child { background: #F3E5F5 !important; color: #4A148C !important; }
.steps-grid > div:nth-child(5) > div:first-child { background: #E0F7FA !important; color: #006064 !important; }

/* Mobile optimizations for Jobs page */
@media (max-width: 640px) {
  /* Hero content: center and relax width on small screens */
  .jobs-hero .hero__content {
    text-align: center !important;
    margin: 0 auto !important;
    max-width: 100% !important;
  }

  /* Study page hero: center content */
  .study-hero .hero__content {
    text-align: center !important;
    margin: 0 auto !important;
    max-width: 100% !important;
  }

  /* Filters stack vertically with larger touch targets */
  .filter-bar {
    padding: 1rem;
    gap: 0.75rem;
  }
  .filter-bar__select {
    min-width: 100%;
    width: 100%;
    font-size: 16px; /* prevent iOS zoom */
  }

  /* Job cards comfortable padding */
  #jobs-list .card .card__content {
    padding: 1.25rem;
  }

  /* Pagination: bigger tap targets */
  #jobs-pagination .tabs__btn,
  #jobs-pagination .pagination__page {
    padding: 0.6rem 0.8rem;
    min-width: 40px;
    font-size: 16px;
  }

  /* Steps grid cards tighter padding */
  .steps-grid > div { padding: 1rem; }
  .steps-grid > div > div:first-child { width: 56px; height: 56px; font-size: 1.1rem; }

  /* Study program cards: slightly smaller image height */
  .card-grid .card .card__image { height: 180px; }

  /* CTA buttons: full width on small screens */
  .section .btn--lg { width: 100%; }

  /* Study charts: single column */
  .charts { grid-template-columns: 1fr; }
}

/* On touch devices, avoid background-size animations */
@media (hover: none) {
  .jobs-hero { background-size: cover; transition: none; }
  .study-hero { background-size: cover; transition: none; }
}

.hero__content {
  position: relative;
  z-index: 1;
  max-width: 700px;
}

.hero__title {
  text-transform: uppercase;
  font-size: clamp(2rem, 5vw, 3.5rem);
  font-weight: 800;
  line-height: 1.2;
  margin-bottom: 1.5rem;
}

.hero__subtitle {
  font-size: clamp(1rem, 2vw, 1.25rem);
  line-height: 1.5;
  margin-bottom: 2rem;
  opacity: 0.95;
}

.hero__actions {
  display: flex;
  gap: 1rem;
  flex-wrap: wrap;
}

.section {
  padding: 5rem 0;
}

.section--alt {
  background: var(--bg-section);
}

.section__header {
  text-align: left;
  margin-bottom: 3rem;
}

.section__title {
  font-size: clamp(1.75rem, 4vw, 2.5rem);
  font-weight: 700;
  margin-bottom: 1rem;
  color: var(--ink);
}

/* Decorative red mark for section titles */
.section__title::before {
  content: '';
  display: inline-block;
  width: 10px;
  height: 10px;
  margin-right: 0.5rem;
  background: var(--error);
  border-radius: 50%;
  vertical-align: middle;
  transform: translateY(-1px);
}

/* Optional large red icon per title, e.g. data-icon="?" for FAQs */
.section__title[data-icon]::after {
  content: attr(data-icon);
  color: var(--error);
  font-weight: 900;
  margin-left: 0.35rem;
  font-size: 1.2em;
  line-height: 1;
}

.section__subtitle {
  font-size: 1.125rem;
  color: var(--muted);
  max-width: 700px;
  margin: 0; /* align left with title */
}

.leader {
  display: grid;
  grid-template-columns: minmax(0, 360px) minmax(0, 1fr);
  gap: 2.5rem 3rem;
  align-items: start;
}

.leader__media {
  position: sticky;
  top: 2rem;
  padding-top: 3.5rem;
  align-self: start;
}

.leader__image {
  width: 100%;
  border-radius: var(--radius-lg);
  object-fit: cover;
  aspect-ratio: 3 / 4;
  box-shadow: var(--shadow-xl);
}

.leader__details {
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
}

.leader__label {
  margin: 0;
  color: var(--brand);
  letter-spacing: 0.05em;
  font-weight: 600;
  text-transform: uppercase;
  font-size: 0.9rem;
}

.leader__name {
  font-size: clamp(1.75rem, 3vw, 2.25rem);
  font-weight: 700;
  margin: 0;
  line-height: 1.3;
}

.leader__title {
  margin: 0;
  font-weight: 600;
  color: var(--ink);
  line-height: 1.6;
  font-size: 1.05rem;
}

.leader__block {
  padding: 1.5rem;
  background: var(--bg);
  border-radius: var(--radius);
  border: 1px solid rgba(99, 102, 241, 0.15);
  box-shadow: var(--shadow-sm);
}

.leader__block-title {
  font-weight: 700;
  margin: 0 0 0.75rem;
  color: var(--ink-light);
  font-size: 1rem;
  letter-spacing: 0.02em;
}

.leader-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 0.65rem;
}

.leader-list li {
  position: relative;
  padding-left: 3rem;
  line-height: 1.6;
  font-weight: 500;
  color: var(--ink);
}

.leader-list li::before {
  content: '';
  position: absolute;
  left: 0;
  top: 0.2rem;
  width: 2rem;
  height: 2rem;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1rem;
  font-weight: 700;
  color: #fff;
  box-shadow: var(--shadow-sm);
  background: linear-gradient(135deg, var(--brand), #4f46e5);
}

.leader-list--timeline li::before {
  content: '⏱';
}

.leader-list--medal li::before {
  content: '🏅';
  background: linear-gradient(135deg, #f59e0b, #fb923c);
}

.leader__snapshot {
  padding: 1.5rem;
  background: var(--bg-alt);
  border-radius: var(--radius);
  border: 1px solid transparent;
  box-shadow: inset 0 0 0 1px rgba(15, 23, 42, 0.05);
}

.leader__snapshot p {
  margin: 0;
  line-height: 1.7;
  color: var(--ink-light);
}

@media (max-width: 960px) {
  .leader {
    grid-template-columns: 1fr;
  }

  .leader__media {
    position: static;
    padding-top: 1rem;
  }
}

/* Keep headers centered for form sections (e.g., contact forms) */
.contact-page .tabs__content .section__header { text-align: center; }
.contact-page .tabs__content .section__subtitle { margin: 0 auto; }

.stats {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 2rem;
  margin: 3rem 0;
}

.stats__item {
  text-align: center;
  padding: 2rem;
  background: var(--bg);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-sm);
  transition: var(--transition);
}

.stats__item:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
}

.stats__number {
  font-size: 3rem;
  font-weight: 800;
  color: var(--brand);
  line-height: 1;
  margin-bottom: 0.5rem;
}

.stats__label {
  font-size: 1rem;
  color: var(--muted);
  font-weight: 500;
}

.stats-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 1.5rem;
  margin: 3rem 0;
}

.stats-card {
  background: #ffffff;
  border-radius: var(--radius-lg);
  padding: 2.5rem 2rem;
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.08);
  transition: all 0.3s ease;
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.stats-card:hover {
  transform: translateY(-8px);
  box-shadow: 0 12px 40px rgba(0, 0, 0, 0.12);
}

.stats-card__label {
  font-size: 1.125rem;
  font-weight: 600;
  color:var(--brand);
  text-transform: capitalize;
  letter-spacing: -0.02em;
}

.stats-card__number {
  font-size: 4rem;
  font-weight: 800;
  color: #111827;
  line-height: 1;
  display: flex;
  align-items: flex-start;
  gap: 0.25rem;
}

.stats-card__plus {
  font-size: 2.5rem;
  color: #9ca3af;
  margin-top: 0.5rem;
  font-weight: 300;
}

.dark .stats-card {
  background: #1f2937;
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.3);
}

.dark .stats-card:hover {
  box-shadow: 0 12px 40px rgba(0, 0, 0, 0.5);
}

.dark .stats-card__number {
  color: #f9fafb;
}

.dark .stats-card__label {
  color: #a78bfa;
}

.stats-staggered {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
  margin: 3rem 0;
}

.stats-staggered__row {
  display: grid;
  grid-template-columns: 1fr 1.5fr;
  gap: 1.5rem;
  align-items: stretch;
}

.stats-staggered__row--reverse {
  grid-template-columns: 1.5fr 1fr;
}

.stats-staggered__small-group {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}

.stats-card--small {
  flex: 1;
  min-height: 160px;
}

.stats-card--large {
  position: relative;
  min-height: 340px;
  padding: 3rem;
  display: flex;
  align-items: flex-end;
  overflow: hidden;
}

.stats-card--image {
  background-size: cover;
  background-position: center;
  background-repeat: no-repeat;
  position: relative;
}

.stats-card--image::after {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background-image: inherit;
  background-size: cover;
  background-position: center;
  transition: transform 0.6s ease;
  z-index: 0;
}

.stats-card--image:hover::after {
  transform: scale(1.1);
}

.stats-card--image::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: linear-gradient(135deg, rgba(31, 31, 31, 0.75) 0%, rgba(197, 197, 197, 0.75) 80%);
  z-index: 1;
}

.stats-card__overlay {
  position: relative;
  z-index: 2;
  color: #ffffff;
}

.stats-card__title {
  font-size: 1.75rem;
  font-weight: 700;
  margin-bottom: 1rem;
  color: var(--brand);
}

.stats-card__description {
  font-size: 1rem;
  line-height: 1.6;
  color: #ffffff;
  font-weight: 400;
}

.dark .stats-card--image::before {
  background: linear-gradient(135deg, rgba(31, 31, 31, 0.75) 0%, rgba(197, 197, 197, 0.75) 80%);
}

.dark .stats-card__title {
  color: #ffffff;
}

.dark .stats-card__description {
  color: rgba(255, 255, 255, 0.9);
}

/* Dark mode surfaces for other cards */
.dark .service-card,
.dark .achievement-card,
.dark .client-logo,
.dark .card {
  background: #1f2937;
  border-color: #374151;
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.35);
}
.dark .service-card:hover,
.dark .achievement-card:hover,
.dark .client-logo:hover,
.dark .card:hover {
  box-shadow: 0 14px 40px rgba(0, 0, 0, 0.55);
}


/* Slow down appearance in Services, News & Partners sections */
.services-fullpage .reveal-up,
.services-fullpage .reveal-scale { transition: opacity 1s ease, transform 1s ease; }
.services-fullpage .fade-in,
.services-fullpage .slide-in-left,
.services-fullpage .slide-in-right { transition: opacity 1s ease-out, transform 1s ease-out; }

.achievements-fullpage .reveal-up,
.achievements-fullpage .reveal-scale { transition: opacity 1s ease, transform 1s ease; }
.achievements-fullpage .fade-in,
.achievements-fullpage .slide-in-left,
.achievements-fullpage .slide-in-right { transition: opacity 1s ease-out, transform 1s ease-out; }

/* Ensure hover bounce wins over in-view transforms */
.service-card.is-inview:hover,
.achievement-card.is-inview:hover,
.client-logo.is-inview:hover,
.card.is-inview:hover {
  transform: translateY(var(--card-hover-translate));
}

/* Hint browsers for smoother hover animation */
.service-card,
.achievement-card,
.client-logo,
.card { will-change: transform; }

/* Dark mode text adjustments for cards */
.dark .service-card__title { color: #e5e7eb; }
.dark .service-card__description { color: #d1d5db; }
.dark .service-card__link { color: #93c5fd; }

.dark .achievement-card__number { color: #f9fafb; }
.dark .achievement-card__label { color: #d1d5db; }

.dark .client-logo { color: #e5e7eb; }

.dark .card__title { color: #f9fafb; }
.dark .card__text { color: #d1d5db; }

/* Fix arrow head glyph for service link */
.service-card__link::before {
  content: "\2192";
  right: var(--arrow-gap);
  transform: translateY(-50%) translateX(var(--arrow-shift));
}

.stats-section {
  border-radius: 25px;
  background: linear-gradient(135deg, #f5f7fa 0%, #e9ecef 100%);
}

.dark .stats-section {
  border-radius: 25px;
  background: linear-gradient(135deg, #1e293b 0%, #0f172a 100%);
}

@media (max-width: 768px) {
  .stats-grid {
    grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
    gap: 1rem;
  }

  .stats-card {
    padding: 1.5rem 1rem;
  }

  .stats-card__number {
    font-size: 2.5rem;
  }

  .stats-card__plus {
    font-size: 1.5rem;
  }

  .stats-card__label {
    font-size: 0.875rem;
  }

  .stats-staggered__row,
  .stats-staggered__row--reverse {
    grid-template-columns: 1fr;
  }

  .stats-card--large {
    min-height: 280px;
    padding: 2rem;
  }

  .stats-card__title {
    font-size: 1.5rem;
  }

  .stats-card__description {
    font-size: 0.875rem;
  }
}

.card-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: 2rem;
}

.card {
  background: var(--bg);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-md);
  transition: transform 240ms var(--card-ease-spring), box-shadow 200ms ease, background-color 200ms ease;
  border: 1px solid var(--border-light);
}

.card:hover { transform: translateY(var(--card-hover-translate)); box-shadow: var(--shadow-xl); }

.card__image {
  width: 100%;
  height: 200px;
  object-fit: cover;
  background: var(--bg-alt);
}

.card__content {
  padding: 1.5rem;
}

.card__title {
  font-size: 1.25rem;
  font-weight: 600;
  margin-bottom: 0.75rem;
  color: var(--ink);
}

.card__text {
  color: var(--muted);
  line-height: 1.6;
  margin-bottom: 1rem;
}

.card__meta {
  display: flex;
  gap: 1rem;
  font-size: 0.875rem;
  color: var(--muted);
  margin-bottom: 1rem;
}

.card__badge {
  display: inline-flex;
  padding: 0.25rem 0.75rem;
  background: var(--bg-alt);
  border-radius: 999px;
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--brand);
}

.partners-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
  gap: 2rem;
  align-items: center;
}

.partner-card {
  background: var(--bg);
  padding: 2rem;
  border-radius: var(--radius-lg);
  border: 1px solid var(--border-light);
  text-align: center;
  transition: var(--transition);
}

.partner-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
  border-color: var(--brand);
}

.partner-card__logo {
  width: 120px;
  height: 80px;
  object-fit: contain;
  margin: 0 auto 1rem;
  filter: grayscale(100%);
  transition: var(--transition);
}

.partner-card:hover .partner-card__logo {
  filter: grayscale(0%);
}

.partner-card__name {
  font-weight: 600;
  color: var(--ink);
  margin-bottom: 0.5rem;
}

.partner-card__location {
  font-size: 0.875rem;
  color: var(--muted);
}

.form {
  max-width: 600px;
  margin: 0 auto;
  background: var(--bg);
  padding: 2rem;
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-md);
}

.form__group {
  margin-bottom: 1.5rem;
}

.form__label {
  display: block;
  font-weight: 600;
  margin-bottom: 0.5rem;
  color: var(--ink);
}

.form__input,
.form__textarea,
.form__select {
  width: 100%;
  padding: 0.75rem;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  font-size: 1rem;
  background: var(--bg);
  color: var(--ink);
  transition: var(--transition);
}

.form__input:focus,
.form__textarea:focus,
.form__select:focus {
  outline: none;
  border-color: var(--brand);
  box-shadow: 0 0 0 3px rgba(45, 95, 255, 0.1);
}

.form__textarea {
  min-height: 120px;
  resize: vertical;
}

.form__submit {
  width: 100%;
}

/* Consent label dynamic color */
.form__label input[data-consent] + .consent-text {
  color: var(--error);
  transition: color .2s ease;
}
.form__label input[data-consent]:checked + .consent-text {
  color: var(--success);
}

/* Lightbox styles */
.lightbox{ position:fixed; inset:0; display:none; align-items:center; justify-content:center; z-index:2000; }
.lightbox.show{ display:flex; }
.lightbox__backdrop{ position:absolute; inset:0; background:rgba(0,0,0,.6); }
.lightbox__content{ position:relative; max-width:95vw; max-height:95vh; display:flex; align-items:center; justify-content:center; gap:1rem; padding:1rem; }
.lightbox__img{ max-width:90vw; max-height:85vh; border-radius: var(--radius); box-shadow: var(--shadow-lg); background:#000; }
.lightbox__btn{ position:absolute; background:rgba(255,255,255,.85); color:#111; border:none; border-radius:999px; width:40px; height:40px; display:flex; align-items:center; justify-content:center; cursor:pointer; box-shadow: var(--shadow-md); transition:transform .15s ease; }
.lightbox__btn:hover{ transform: scale(1.05); }
.lightbox__btn--prev{ left:10px; }
.lightbox__btn--next{ right:10px; }
.lightbox__btn--close{ top:10px; right:10px; width:36px; height:36px; background:rgba(17,17,17,.8); color:#fff; }

.services-fullpage {
  background: transparent;
}

.services-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 2rem;
  margin-top: 3rem;
}

.service-card {
  background: var(--bg);
  border-radius: var(--radius-lg);
  padding: 3rem 2rem;
  text-align: center;
  box-shadow: var(--shadow-md);
  transition: transform 240ms var(--card-ease-spring), box-shadow 200ms ease, color 200ms ease, background-color 200ms ease;
  text-decoration: none;
  color: var(--ink);
  display: flex;
  flex-direction: column;
  align-items: center;
}

.service-card:hover { transform: translateY(var(--card-hover-translate)); box-shadow: var(--shadow-xl); }

.service-card__icon {
  font-size: 4rem;
  margin-bottom: 1.5rem;
}

.service-card__title {
  font-size: 1.5rem;
  font-weight: 700;
  margin-bottom: 1rem;
  color: var(--brand);
}

.service-card__description {
  color: var(--muted);
  line-height: 1.6;
  margin-bottom: 1.5rem;
}

/* Image variant: service-card with background image like stats-card */
.service-card--image {
  position: relative;
  overflow: hidden;
  background-size: cover;
  background-position: center;
  background-repeat: no-repeat;
}

.service-card--image::after {
  content: '';
  position: absolute;
  inset: 0;
  background-image: inherit;
  background-size: cover;
  background-position: center;
  transition: transform 0.6s ease;
  z-index: 0;
}

.service-card--image:hover::after {
  transform: scale(1.08);
}

.service-card--image::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(17, 24, 39, 0.65) 0%, rgba(17, 24, 39, 0.35) 100%);
  z-index: 1;
}

.service-card--image .service-card__icon,
.service-card--image .service-card__title,
.service-card--image .service-card__description,
.service-card--image .service-card__link {
  position: relative;
  z-index: 2;
  color: #ffffff;
}

.service-card__link {
  color: var(--brand);
  font-weight: 600;
  margin-top: auto;
}

/* service-card link: arrow extends to the right on hover */
.service-card__link {
  position: relative;
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  /* Arrow layout variables */
  --arrow-gap: 0.5rem;         /* space from text to arrow */
  --arrow-shift: 0px;          /* head nudge on hover */
  --arrow-tail: 0px;           /* tail length */
  --text-shift: 0px;           /* move text slightly left on hover */
  padding-right: calc(var(--arrow-gap) + 1.4rem);
  transition: color 0.25s ease, transform 0.25s ease;
  white-space: nowrap;
  will-change: color;
  transform: translateX(calc(-1 * var(--text-shift)));
}

.service-card__link::after,
.service-card__link::before {
  content: '';
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
}

/* Arrow head */
.service-card__link::before {
  content: "\2192";
  right: var(--arrow-gap);
  font-size: 0.9rem;
  line-height: 1;
  transform: translateY(-50%) translateX(var(--arrow-shift));
  transition: transform 0.3s ease;
}

/* Arrow tail (line grows) */
.service-card__link::after {
  display: none;
}

.service-card__link:hover,
.service-card__link:focus-visible {
  color: var(--accent);
  --arrow-shift: 10px; /* arrow goes right more */
  --text-shift: 3px;   /* text goes a bit left */
}

/* Ensure dark mode also switches to accent only on hover */
.dark .service-card:hover .service-card__link,
.dark .service-card__link:hover,
.dark .service-card__link:focus-visible {
  color: var(--accent);
}

.service-card__link:hover::after,
.service-card__link:focus-visible::after {
  /* width handled by variable */
}

/* Also trigger arrow effect when hovering the whole card */
.service-card:hover .service-card__link { color: var(--accent); --arrow-shift: 10px; --text-shift: 3px; }

.achievements-fullpage {
  background: var(--bg-alt);
}

.achievements-layout {
  width: 100%;
}

.achievements-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.5rem;
  margin: 2rem 0;
}

.achievement-card {
  background: var(--bg);
  border-radius: var(--radius-lg);
  padding: 2rem 1.5rem;
  text-align: center;
  box-shadow: var(--shadow-md);
  transition: transform 240ms var(--card-ease-spring), box-shadow 200ms ease, background-color 200ms ease;
}

.achievement-card:hover { transform: translateY(var(--card-hover-translate)); box-shadow: var(--shadow-lg); }

.achievement-card__number {
  font-size: 2.5rem;
  font-weight: 800;
  color: var(--brand);
  margin-bottom: 0.5rem;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.25rem;
}

.achievement-card__plus {
  font-size: 2rem;
}

.achievement-card__label {
  font-size: 1rem;
  color: var(--muted);
  font-weight: 500;
}

.clients-section {
  margin-top: 2rem;
  text-align: center;
}

.clients-title {
  font-size: 1.5rem;
  font-weight: 700;
  margin-bottom: 2rem;
  color: var(--ink);
}

.clients-logos {
  display: grid;
  grid-template-columns: repeat(6, 1fr);
  gap: 2rem;
  margin-bottom: 2rem;
}

/* Marquee variant: right-to-left scroll */
.clients-logos--marquee {
  overflow: hidden;
  position: relative;
  padding: 0.5rem 0;
  /* Stretch to full-bleed across container padding */
  margin-left: -1.5rem;
  margin-right: -1.5rem;
  padding-left: 1.5rem;
  padding-right: 1.5rem;
}
.clients-logos--marquee .clients-logos__track {
  display: flex;
  gap: 2rem;
  width: max-content;
  animation: clients-marquee 40s linear infinite;
  will-change: transform;
}
.clients-logos--marquee + .clients-logos { display: none; }

.clients-logos--marquee .client-logo {
  background: transparent;
  box-shadow: none;
  border-radius: 0;
  padding: 0; /* spacing handled by flex gap */
  transition: transform 200ms ease;
}
.clients-logos--marquee .client-logo:hover { transform: translateY(-2px); }
.clients-logos--marquee .client-logo img { height: 40px; width: auto; object-fit: contain; display: block; }

@keyframes clients-marquee {
  0% { transform: translate3d(0,0,0); }
  100% { transform: translate3d(-50%,0,0); }
}

.client-logo {
  background: var(--bg);
  border-radius: var(--radius);
  padding: 2rem 1rem;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  color: var(--ink-light);
  box-shadow: var(--shadow-sm);
  transition: transform 240ms var(--card-ease-spring), box-shadow 200ms ease, background-color 200ms ease;
}

.client-logo:hover { box-shadow: var(--shadow-md); transform: translateY(var(--card-hover-translate)); }

@media (max-width: 1024px) {
  .services-grid {
    grid-template-columns: 1fr;
  }

  .achievements-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .clients-logos {
    grid-template-columns: repeat(3, 1fr);
  }
}

@media (max-width: 768px) {
  .fullpage-container {
    scroll-snap-type: y mandatory;
    height: 100svh;
  }

  .fullpage-section {
    height: 100svh;
    scroll-snap-align: start;
    padding: 0;
  }

  .achievements-grid {
    grid-template-columns: 1fr;
  }

  .clients-logos {
    grid-template-columns: repeat(2, 1fr);
  }

  .scroll-indicator {
    display: none;
  }
}

.footer-section {
  background: transparent;
  /* Arrange contact area and footer vertically */
  flex-direction: column;
  justify-content: space-between;
  align-items: stretch;
}

/* Make contact content fit within the fullpage dot */
.footer-section > .container {
  flex: 1 1 auto;
  display: flex;
  align-items: center;
}

/* Ensure achievements section fits within one screen and reveal smoothly */
@media (min-width: 769px) {
  .achievements-fullpage .container {
    max-height: calc(100svh - 120px);
    display: flex;
    flex-direction: column;
    justify-content: center;
    overflow: hidden;
  }
  /* Fit news grid inside the dot comfortably */
  .achievements-fullpage .section__header { margin-bottom: 0.35rem; }
  .achievements-fullpage .news-grid { gap: 0.5rem; }
  .achievements-fullpage .news-grid__top { gap: 0.5rem; }
  .achievements-fullpage .news-card--large .card__image { height: 110px; }
  .achievements-fullpage .news-card--small .card__image { height: 55px; }
  .achievements-fullpage .news-grid__bottom { margin-top: 0.15rem; }
  .achievements-fullpage .news-card .card__content { padding: 0.5rem 0.75rem; }
  .achievements-fullpage .news-card .card__title { font-size: 0.95rem; margin-bottom: 0.3rem; }
  .achievements-fullpage .news-card .card__meta { font-size: 0.7rem; margin-bottom: 0.3rem; }
  .achievements-fullpage .news-card .card__text { font-size: 0.8rem; display:-webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; }
  .achievements-fullpage .news-card--small .card__text { display: none; }
  .achievements-fullpage .news-grid__nav { width: 26px; height: 26px; }
  .achievements-fullpage .news-grid__nav--prev { left: 0; }
  .achievements-fullpage .news-grid__nav--next { right: 0; }
  .achievements-layout { gap: 1rem; }
  .achievements-grid { gap: 1rem; margin: 1.25rem 0; }
  .achievement-card { padding: 1.5rem 1.25rem; }
  .clients-section { margin-top: 1rem; }
}

/* Staggered reveal for achievement cards */
.achievements-grid .achievement-card { transition-delay: 0.05s; }
.achievements-grid .achievement-card:nth-child(2) { transition-delay: 0.10s; }
.achievements-grid .achievement-card:nth-child(3) { transition-delay: 0.15s; }
.achievements-grid .achievement-card:nth-child(4) { transition-delay: 0.20s; }
.achievements-grid .achievement-card:nth-child(5) { transition-delay: 0.25s; }
.achievements-grid .achievement-card:nth-child(6) { transition-delay: 0.30s; }

.footer {
  background: var(--ink);
  color: var(--bg);
  padding: 2.25rem 0 1.25rem;
  width: 100%;
}

/* Smaller footer inside the contact (fullpage) dot */
.footer-section .footer {
  padding: 1.25rem 0 0.75rem;
}
.footer-section .footer__grid { margin-bottom: 1rem; }

@media (max-width: 768px) {
  .footer-section .footer { padding: 1rem 0 0.5rem; }
  .footer-section .footer__grid { margin-bottom: 0.75rem; }
}

/* Contact grid in contact (li챗n h占? dot */
.contact-grid {
  display: grid;
  grid-template-columns: 2fr 1fr;
  gap: 2rem;
  margin: 0;
  width: 100%;
}

.contact-map iframe {
  width: 100%;
  height: clamp(260px, 35vh, 360px);
  border: 0;
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-md);
}

.contact-card {
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 1.5rem;
  box-shadow: var(--shadow-sm);
}

.contact-card__title {
  font-size: 1.25rem;
  font-weight: 700;
  margin-bottom: 1rem;
  color: var(--ink);
}

.contact-card__list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  color: var(--ink);
}

.contact-card a { color: var(--brand); }
.contact-card a:hover { color: var(--accent); }

.dark .contact-card { background: #1f2937; border-color: #374151; box-shadow: 0 4px 16px rgba(0,0,0,0.3); }
.dark .contact-card__title { color: #f9fafb; }
.dark .contact-card__list { color: #e5e7eb; }
.dark .contact-map iframe { box-shadow: 0 6px 20px rgba(0,0,0,0.4); }

@media (max-width: 1024px) {
  .contact-grid {
    grid-template-columns: 1fr;
  }
  .contact-map iframe { height: clamp(220px, 35vh, 300px); }
}

.footer__grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 2rem;
  margin-bottom: 2rem;
}

.footer__logo .footer__name {
  font-weight: 800;
  font-size: 1.25rem;
  color: var(--ink);
}

.footer__section-title {
  font-weight: 700;
  margin-bottom: 1rem;
  font-size: 1.125rem;
}

.footer__list {
  list-style: none;
}

.footer__list li {
  margin-bottom: 0.5rem;
}

.footer__list a {
  color: var(--muted);
}

.footer__list a:hover {
  color: var(--bg);
}

.footer__social {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  margin-top: 0.75rem;
}
.footer__social-link {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  padding: 0.35rem 0.95rem;
  border-radius: 999px;
  border: 1px solid rgba(255, 255, 255, 0.35);
  background: rgba(255, 255, 255, 0.08);
  color: var(--bg);
  font-weight: 600;
  text-decoration: none;
  transition: var(--transition);
}
.footer__social-link::before {
  content: "";
  width: 1.25rem;
  height: 1.25rem;
  flex-shrink: 0;
  border-radius: 999px;
  background-size: contain;
  background-position: center;
  background-repeat: no-repeat;
}
.footer__social-link:hover {
  border-color: rgba(255, 255, 255, 0.6);
  background: rgba(255, 255, 255, 0.13);
}

.dark .footer__social-link {
  background: rgba(0, 0, 0, 0.12);
  border-color: rgba(0, 0, 0, 0.3);
  color: var(--ink);
}

.footer__bottom {
  border-top: 1px solid var(--border);
  padding-top: 1.5rem;
  text-align: center;
  color: var(--muted);
  font-size: 0.875rem;
}

.tabs {
  display: flex;
  gap: 1rem;
  border-bottom: 2px solid var(--border);
  margin-bottom: 2rem;
  flex-wrap: wrap;
}

.tabs__btn {
  padding: 0.75rem 1.5rem;
  background: var(--bg-alt);
  border: 1px solid var(--border);
  border-radius: 9999px;
  font-size: 1rem;
  font-weight: 600;
  color: var(--muted);
  cursor: pointer;
  position: relative;
  transition: var(--transition);
}

.tabs__btn:hover {
  color: var(--brand);
  border-color: var(--brand);
  transform: translateY(-2px);
  box-shadow: var(--shadow-sm);
}

.tabs__btn--active {
  color: white;
  background: var(--brand);
  border-color: var(--brand);
}

.tabs__btn--active::after {
  display: none;
}

.tabs__content {
  display: none;
}

.tabs__content--active {
  display: block;
}

/* Slide-in animation when switching tabs */
.tabs__content--slide { animation: tab-slide-in 0.35s ease; }
@keyframes tab-slide-in {
  from { opacity: 0; transform: translateX(12px); }
  to { opacity: 1; transform: translateX(0); }
}

/* Pagination (Tin tức page) — smaller buttons */
.pagination .tabs__btn {
  padding: 0.375rem 0.625rem;
  font-size: 0.85rem;
  border-radius: 6px;
  line-height: 1.2;
}

.filter-bar {
  display: flex;
  gap: 1rem;
  margin-bottom: 2rem;
  flex-wrap: wrap;
  padding: 1.5rem;
  background: var(--bg-alt);
  border-radius: var(--radius-lg);
}

.filter-bar__select {
  flex: 1;
  min-width: 200px;
  padding: 0.75rem;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: var(--bg);
  color: var(--ink);
}

.badge {
  display: inline-flex;
  padding: 0.25rem 0.75rem;
  border-radius: 999px;
  font-size: 0.75rem;
  font-weight: 600;
}

.badge--success {
  background: rgba(16, 185, 129, 0.1);
  color: var(--success);
}

.badge--warning {
  background: rgba(245, 158, 11, 0.1);
  color: var(--warning);
}

.badge--info {
  background: rgba(45, 95, 255, 0.1);
  color: var(--brand);
}

@media (min-width: 768px) {
  .header__nav {
    display: flex;
  }

  .mobile-menu-toggle {
    display: none;
  }
}

@media (max-width: 767px) {
  .hero {
    min-height: 500px;
    text-align: center;
  }

  .hero__actions {
    justify-content: center;
  }

  .section {
    padding: 3rem 0;
  }

  .card-grid {
    grid-template-columns: 1fr;
  }

  .partners-grid {
    grid-template-columns: repeat(auto-fill, minmax(150px, 1fr));
  }

  .header__nav-submenu {
    position: static;
    border: none;
    box-shadow: none;
    padding: 0;
    margin: 0;
    background: transparent;
    max-height: 0;
    overflow: hidden;
    opacity: 1;
    visibility: visible;
    transform: none;
    transition: max-height 0.3s ease;
  }

  .header__nav-dropdown.active .header__nav-submenu {
    max-height: 300px;
    padding: 0.5rem 0;
    margin-top: 0.5rem;
  }

  .header__nav-submenu a {
    padding: 0.75rem 1.5rem;
    background: var(--bg-alt);
    margin-bottom: 0.25rem;
    border-radius: var(--radius);
  }

  .header__nav-toggle {
    width: 100%;
    text-align: left;
    padding: 0.75rem 1.25rem 0.75rem 0;
  }

  /* Mobile main nav container (hidden by default, opens on toggle) */
  .header__nav {
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    display: block;
    background: var(--bg);
    border-top: 1px solid var(--border);
    box-shadow: var(--shadow-lg);
    max-height: 0;
    overflow: hidden;
    opacity: 0;
    visibility: hidden;
    transition: max-height 0.3s ease, opacity 0.2s ease;
  }

  .header__nav.active {
    max-height: 80vh;
    opacity: 1;
    visibility: visible;
  }

  .header__nav a,
  .header__nav .header__nav-toggle {
    display: block;
    padding: 0.75rem 1.5rem;
    border-bottom: 1px solid var(--border-light);
  }

  .header__nav a:last-child {
    border-bottom: 0;
  }

  /* Burger to X animation */
  .mobile-menu-toggle.active span:nth-child(1) {
    transform: translateY(6px) rotate(45deg);
  }
  .mobile-menu-toggle.active span:nth-child(2) {
    opacity: 0;
  }
  .mobile-menu-toggle.active span:nth-child(3) {
    transform: translateY(var(--card-hover-translate)) rotate(-45deg);
  }
}

.mega-menu {
  display: none;
  position: absolute;
  top: 100%;
  left: 0;
  right: 0;
  background: var(--bg);
  border-top: 1px solid var(--border);
  box-shadow: var(--shadow-xl);
  padding: 2rem 0;
  z-index: 999;
}

.mega-menu__grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 2rem;
}

.mega-menu__section-title {
  font-weight: 700;
  font-size: 0.875rem;
  text-transform: uppercase;
  color: var(--brand);
  margin-bottom: 1rem;
  letter-spacing: 0.05em;
}

.mega-menu__list {
  list-style: none;
}

.mega-menu__list li {
  margin-bottom: 0.75rem;
}

.mega-menu__list a {
  color: var(--ink);
  font-size: 0.9375rem;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.mega-menu__list a:hover {
  color: var(--brand);
  padding-left: 0.5rem;
}

.header__nav-item {
  position: relative;
}

.header__nav-item:hover .mega-menu {
  display: block;
}

@media (prefers-reduced-motion: reduce) {
  * {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
}

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border-width: 0;
}
/* Hero content visible by default; children use reveal utilities */
.hero__content {
  opacity: 1;
  transform: none;
}

/* Smooth scaling for sections: active section scales to 1 */
@media (min-width: 769px) {
  .fullpage-section { transform: scale(0.985); opacity: 0.96; }
  .fullpage-section.is-active { transform: scale(1); opacity: 1; }
}

/* Generic reveal animations for homepage items */
.reveal-up { opacity: 0; transform: translateY(14px); transition: opacity 0.5s ease, transform 0.5s ease; will-change: transform, opacity; }
.reveal-scale { opacity: 0; transform: scale(0.96); transition: opacity 0.5s ease, transform 0.5s ease; will-change: transform, opacity; }
.is-inview { opacity: 1 !important; }
/* Allow hover transforms by not forcing transform:none globally */
.reveal-up.is-inview { transform: translateY(0); }
.reveal-scale.is-inview { transform: scale(1); }

/* Light stagger defaults for container children reveals (first 8 elements) */
.fullpage-section .container > *.reveal-up:nth-child(1) { transition-delay: 0s; }
.fullpage-section .container > *.reveal-up:nth-child(2) { transition-delay: 0.08s; }
.fullpage-section .container > *.reveal-up:nth-child(3) { transition-delay: 0.16s; }
.fullpage-section .container > *.reveal-up:nth-child(4) { transition-delay: 0.24s; }
.fullpage-section .container > *.reveal-up:nth-child(5) { transition-delay: 0.32s; }
.fullpage-section .container > *.reveal-up:nth-child(6) { transition-delay: 0.40s; }
.fullpage-section .container > *.reveal-up:nth-child(7) { transition-delay: 0.48s; }
.fullpage-section .container > *.reveal-up:nth-child(8) { transition-delay: 0.56s; }

/* When header finishes slide-in, delay hero content a bit (after menu) */
.header.homepage.show ~ .fullpage-container .hero__content > * {
  transition-delay: 1.65s;
}

/* Ensure hero content stays hidden until header has fully shown */
.header.homepage:not(.show) ~ .fullpage-container .hero__content > * {
  opacity: 0 !important;
  transform: translateY(14px) !important;
}

/* Logo inside hero */
.hero__logo {
  margin-bottom: 1rem;
}
.hero__logo-img {
  /* Bigger, responsive hero logo on VI home (and others using this class) */
  height: clamp(88px, 12vw, 480px);
  width: auto;
  filter: drop-shadow(0 6px 16px rgba(0,0,0,0.25));
}

/* Enlarge header/footer logos site-wide (override inline heights) */
.header__logo img {
  height: 56px !important;
  width: auto;
}
@media (max-width: 640px) {
  .header__logo img { height: 46px !important; }
}

.footer__logo img {
  height: 64px !important;
  width: auto;
}
@media (max-width: 640px) {
  .footer__logo img { height: 56px !important; }
}



/* News grid layout (2 large top + carousel bottom) */
.news-grid { display: flex; flex-direction: column; gap: 1rem; }
.news-grid__top { display: grid; grid-template-columns: repeat(2, 1fr); gap: 1rem; }
.news-grid__bottom { position: relative; }
.news-grid__viewport { overflow: hidden; }
.news-grid__track { display: flex; gap: 1rem; will-change: transform; }
.news-grid__nav { position: absolute; top: 50%; transform: translateY(-50%); z-index: 2; background: rgba(17,24,39,0.85); color: #fff; border: 0; width: 40px; height: 40px; border-radius: 999px; cursor: pointer; display: grid; place-items: center; box-shadow: var(--shadow-md); }
.news-grid__nav--prev { left: 0; }
.news-grid__nav--next { right: 0; }

.news-card--video {
  display: grid;
  gap: 0.75rem;
  padding: 1rem;
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  background: var(--bg);
}
.news-card--video .news-card__video-wrap {
  position: relative;
  overflow: hidden;
  border-radius: calc(var(--radius-lg) - 4px);
  background: var(--bg-section);
  min-height: 200px;
}
.news-card--video video {
  width: 100%;
  height: 100%;
  display: block;
  object-fit: cover;
  border-radius: inherit;
}

.news-card--large .card__image { height: 240px; }
.news-card--small { flex: 0 0 calc(25% - 0.75rem); }
.news-card--small .card__image { height: 120px; }

@media (max-width: 992px) {
  .news-grid__top { grid-template-columns: 1fr; }
  .news-card--small { flex: 0 0 calc(50% - 0.5rem); }
}
@media (max-width: 640px) {
  .news-card--small { flex: 0 0 100%; }
}


/* Pagination */
.pagination{ display:flex; align-items:center; justify-content:center; gap:.5rem; margin-top:1rem; }
.pagination__btn, .pagination__page{ background: var(--bg); color: var(--ink); border:1px solid var(--border); border-radius: 6px; padding:.4rem .6rem; min-width:34px; cursor:pointer; box-shadow: var(--shadow-sm); }
.pagination__page.is-active{ background: var(--brand); color:#fff; border-color: var(--brand); }
.pagination__btn[disabled]{ opacity:.5; cursor:not-allowed; }

/* Study charts (lightweight, CSS-only animation) */
.charts { display: grid; grid-template-columns: repeat(auto-fit, minmax(260px, 1fr)); gap: 1.25rem; }
.chart-card { background: var(--bg); border: 1px solid var(--border); border-radius: var(--radius-lg); padding: 1rem 1.25rem; box-shadow: var(--shadow-sm); }
.chart-title { font-size: 1.05rem; font-weight: 700; margin-bottom: 0.75rem; }
.chart-bars { display: flex; flex-direction: column; gap: 0.6rem; }
.bar-row { display: grid; grid-template-columns: 110px 1fr; gap: 0.75rem; align-items: center; }
.bar-label { color: var(--muted); font-weight: 600; font-size: 0.9rem; }
.bar { position: relative; height: 10px; background: var(--border-light); border-radius: 999px; overflow: hidden; }
.bar::after { content: ""; position: absolute; inset: 0; width: 0%; background: linear-gradient(90deg, var(--brand), color-mix(in srgb, var(--brand) 70%, var(--accent))); border-radius: 999px; transition: width 1.1s var(--card-ease-spring); }
/* When observed as visible, expand to target percent */
.reveal-up.is-visible .bar::after { width: var(--v, 0%); }

.kpi-grid { display: grid; grid-template-columns: repeat(2, minmax(120px, 1fr)); gap: 0.75rem; }
.kpi { background: var(--bg-alt); border: 1px solid var(--border); border-radius: var(--radius); padding: 0.75rem; text-align: center; }
.kpi__value { font-size: 1.3rem; font-weight: 800; color: var(--brand); }
.kpi__label { font-size: 0.85rem; color: var(--muted); }
/* Logo slider (education partners) */
.logo-slider { position: relative; overflow: hidden; }
.logo-track { display: flex; gap: 2rem; align-items: center; width: max-content; animation: logos-scroll 28s linear infinite; }
.logo-slider:hover .logo-track { animation-play-state: paused; }
/* Slow down the CV pics slider under the KO section "숙련된 경력 인재 상시 보유" */
#edu-partners .logo-track { animation-duration: 48s; }
@media (max-width: 768px) { #edu-partners .logo-track { animation-duration: 60s; } }
/* Keep KO CV slider running on hover to avoid sudden speed changes */
#edu-partners .logo-slider:hover .logo-track { animation-play-state: running; }
/* Hint the browser for smoother animations */
#edu-partners .logo-track { will-change: transform; }
.logo-link img { height: 64px; width: auto; filter: grayscale(0.1); opacity: 0.95; transition: transform .25s ease, filter .25s ease, opacity .25s ease; }
.logo-link:hover img { transform: scale(1.05); filter: none; opacity: 1; }
@keyframes logos-scroll { from { transform: translateX(0); } to { transform: translateX(-50%); } }

/* Mobile overrides: disable fullpage snap/height, show normal flow */
@media (max-width: 768px) {
  .fullpage-container { scroll-snap-type: none !important; overflow-y: visible !important; height: auto !important; }
  .fullpage-section { height: auto !important; scroll-snap-align: none !important; padding: 1rem 0 !important; align-items: stretch; justify-content: stretch; }
  .page-dots { display: none !important; }
}

/* Mobile optimizations for "Về chúng tôi" page (<= 768px) */
@media (max-width: 768px) {
  /* Hero: giảm cao, padding nhỏ hơn, giữ hình nền cover */
  .hero {
    padding: 2rem 1rem;
    min-height: 320px;
    background-position: center top;
  }
  .hero__content {
    max-width: 100%;
    padding: 0;
  }
  .hero__title {
    font-size: 1.6rem;
    line-height: 1.2;
    margin-bottom: 0.5rem;
  }

  /* Giảm animation/transition nặng trên mobile để mượt hơn */
  .fade-in, .slide-in-left, .slide-in-right, .reveal-up {
    transition: none !important;
    animation: none !important;
  }

  /* Stats: stack thay vì side-by-side */
  .stats-staggered,
  .stats-staggered__row {
    display: block;
    gap: 1rem;
  }
  .stats-card {
    width: 100%;
    margin-bottom: 1rem;
    box-shadow: var(--shadow-sm);
  }
  .stats-card--large.stats-card--image {
    background-size: cover;
    background-position: center;
    min-height: 180px;
  }

  /* Cards / grids: một cột, hình responsive */
  .card-grid,
  .partners-grid,
  #orders-grid,
   #news-grid,
  .card-grid .card {
    grid-template-columns: 1fr !important;
    gap: 1rem;
  }
  .card {
    padding: 0;
    display: flex;
    flex-direction: column;
  }
  .card__image {
    width: 100%;
    height: auto;
    max-height: 200px;
    object-fit: cover;
    display: block;
  }
  .card__content {
    padding: 0.9rem 1rem;
  }
  #orders-container .card,
  #orders-grid .card,
  #jobs-list .card {
    position: relative;
    border-radius: var(--radius-lg);
    overflow: hidden;
    background-color: var(--bg);
    background-image: var(--card-bg-image, none);
    background-repeat: no-repeat;
    background-size: cover;
    background-position: center;
    border: 1px solid rgba(15, 23, 42, 0.08);
  }
  #orders-container .card::after,
  #orders-grid .card::after,
  #jobs-list .card::after {
    content: '';
    position: absolute;
    inset: 0;
    pointer-events: none;
  }
  #orders-container .card__content,
  #orders-grid .card__content,
  #jobs-list .card__content {
    background: rgba(255, 255, 255, 0.85);
    position: relative;
    z-index: 1;
    border-radius: 0;
    box-shadow: 0 20px 40px rgba(15, 23, 42, 0.15);
  }
  #orders-container .card__content p,
  #orders-grid .card__content p,
  #orders-container .card__content ul,
  #orders-grid .card__content ul,
  #jobs-list .card__content p,
  #jobs-list .card__content ul {
    color: var(--ink);
  }
  #orders-container .card[data-industry="electrical"],
  #orders-grid .card[data-industry="electrical"] { --card-bg-image: url('/bgimages/cardbg/electrical.webp'); }
  #orders-container .card[data-industry="ship_welding"],
  #orders-grid .card[data-industry="ship_welding"] { --card-bg-image: url('/bgimages/cardbg/ship_welding.webp'); }
  #orders-container .card[data-industry="mechanical"],
  #orders-grid .card[data-industry="mechanical"] { --card-bg-image: url('/bgimages/cardbg/mechanical.webp'); }
  #orders-container .card[data-industry="construction"],
  #orders-grid .card[data-industry="construction"] { --card-bg-image: url('/bgimages/cardbg/construction.webp'); }
  #orders-container .card[data-industry="culinary"],
  #orders-grid .card[data-industry="culinary"] { --card-bg-image: url('/bgimages/cardbg/culinary.webp'); }
  #orders-container .card[data-industry="automotive"],
  #orders-grid .card[data-industry="automotive"] { --card-bg-image: url('/bgimages/cardbg/automotive.webp'); }
  #jobs-list .card[data-category="electronics"] { --card-bg-image: url('/bgimages/cardbg/electronics.webp'); }
  #jobs-list .card[data-category="manufacturing"] { --card-bg-image: url('/bgimages/cardbg/manufacturing.webp'); }
  #jobs-list .card[data-category="construction"] { --card-bg-image: url('/bgimages/cardbg/construction.webp'); }
  #jobs-list .card[data-category="food_processing"] { --card-bg-image: url('/bgimages/cardbg/food_processing.webp'); }
  #jobs-list .card[data-category="technology"] { --card-bg-image: url('/bgimages/cardbg/technology.webp'); }

  /* Partners: center + compact */
  .partner-card {
    text-align: center;
    padding: 1rem;
  }

  /* Buttons: full-width for easy tapping */
  .btn {
    display: block;
    width: 100%;
    box-sizing: border-box;
    padding-left: 0;
    padding-right: 0;
  }

  /* Container spacing */
  .container {
    padding-left: 1rem;
    padding-right: 1rem;
  }
  .section {
    padding-top: 1.25rem;
    padding-bottom: 1.25rem;
  }

  /* Tap targets */
  .header__actions .theme-toggle,
  .lang-switcher__btn,
  .mobile-menu-toggle {
    min-width: 44px;
    min-height: 44px;
  }

  /* Readability tweaks */
  .stats-card__number span { font-size: 1.35rem; }
}

/* Very small screens */
@media (max-width: 360px) {
  .hero__title { font-size: 1.4rem; }
  .card__image { max-height: 160px; }
}