/* TET BINH NGO 2026 - Unified UI system (light/dark) */
:root {
  --bg-gradient: linear-gradient(180deg, #7a1212 0%, #4b0c0c 45%, #2a0909 100%);
  --bg: #4b0c0c;
  --surface: rgba(45, 10, 10, 0.6);
  --surface-strong: rgba(55, 12, 12, 0.86);
  --tet-red: #dc2626;
  --tet-gold: #fbbf24;
  --tet-orange: #f59e0b;
}

body.tet-page .site-header {
  position: fixed;
  overflow: visible;
}

body.tet-page .header-lanterns {
  position: absolute;
  inset: 0;
  pointer-events: none;
  z-index: 2;
}

body.auth-page.tet-page .lantern-wrap {
  position: absolute;
  top: calc(100% - 6px);
  width: 48px;
  height: 140px;
  transform-origin: 50% 0%;
  animation: headerLanternSwing 5.2s ease-in-out infinite;
}

body.auth-page.tet-page .lantern-wrap.left { left: 56px; }
body.auth-page.tet-page .lantern-wrap.right { right: 56px; animation-delay: 1.1s; }

body.auth-page.tet-page .lantern-string {
  width: 2px;
  height: 40px;
  margin: 0 auto;
  background: #3b1f12;
  box-shadow: 0 0 6px rgba(255, 210, 125, 0.45);
}

body.auth-page.tet-page .lantern {
  width: 28px;
  height: 64px;
  margin: 0 auto;
  border-radius: 999px;
  background:
    radial-gradient(circle at 50% 25%, rgba(255, 242, 204, 0.85), transparent 45%),
    linear-gradient(180deg, #ff5a5a 0%, #e02424 55%, #b91c1c 100%);
  border: 1px solid rgba(120, 10, 10, 0.35);
  box-shadow:
    0 0 12px rgba(255, 200, 120, 0.6),
    0 0 28px rgba(239, 68, 68, 0.45),
    inset 0 0 10px rgba(255, 220, 170, 0.35);
  position: relative;
  animation: headerLanternGlow 2.8s ease-in-out infinite, headerLanternFloat 4.6s ease-in-out infinite;
}

body.auth-page.tet-page .lantern::before {
  content: "";
  position: absolute;
  inset: 8px 6px 10px;
  border-radius: 999px;
  background:
    radial-gradient(circle at 50% 35%, rgba(255, 245, 210, 0.6), transparent 45%),
    repeating-linear-gradient(
      180deg,
      rgba(255, 255, 255, 0.35) 0,
      rgba(255, 255, 255, 0.35) 2px,
      rgba(255, 255, 255, 0.06) 6px,
      rgba(255, 255, 255, 0.06) 10px
    );
  box-shadow: inset 0 0 8px rgba(255, 220, 170, 0.45);
}

body.auth-page.tet-page .lantern::after {
  content: "";
  position: absolute;
  inset: 16px 9px 18px;
  border-radius: 999px;
  background: radial-gradient(circle, rgba(255, 230, 170, 0.55), transparent 60%);
  mix-blend-mode: screen;
}

@keyframes headerLanternSwing {
  0%, 100% { transform: rotate(-4deg); }
  50% { transform: rotate(4deg); }
}

@keyframes headerLanternGlow {
  0%, 100% {
    box-shadow:
      0 0 12px rgba(255, 200, 120, 0.6),
      0 0 28px rgba(239, 68, 68, 0.45),
      inset 0 0 10px rgba(255, 220, 170, 0.35);
  }
  50% {
    box-shadow:
      0 0 18px rgba(255, 220, 150, 0.8),
      0 0 36px rgba(239, 68, 68, 0.6),
      inset 0 0 14px rgba(255, 235, 190, 0.55);
  }
}

@keyframes headerLanternFloat {
  0%, 100% { transform: translateY(-4px); }
  50% { transform: translateY(4px); }
}

@media (max-width: 900px) {
  body.auth-page.tet-page .lantern-wrap { width: 40px; height: 120px; }
  body.auth-page.tet-page .lantern-wrap.left { left: 18px; }
  body.auth-page.tet-page .lantern-wrap.right { right: 18px; }
  body.auth-page.tet-page .lantern { width: 26px; height: 56px; }
}

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

/* Typography */
h1, h2, h3 { color: var(--text); line-height: 1.15; }
h1 { font-size: clamp(2.2rem, 4vw, 3.2rem); }
h2 { font-size: clamp(1.6rem, 3vw, 2.2rem); }
h3 { font-size: clamp(1.1rem, 2vw, 1.4rem); }
p { color: var(--text-muted); }

/* Links & buttons */
a { color: var(--text); text-decoration: none; }
a:hover { color: var(--accent); }

.btn,
a.btn,
button.btn {
  background: var(--cta-gradient);
  color: #fff7ed;
  border: 1px solid rgba(255, 210, 125, 0.45);
  box-shadow: var(--cta-shadow);
  border-radius: 999px;
  transition: transform 0.2s ease, box-shadow 0.2s ease, filter 0.2s ease;
}

.btn:hover,
a.btn:hover,
button.btn:hover {
  transform: translateY(-2px);
  filter: brightness(1.03);
}

.btn.btn-secondary,
a.btn.btn-secondary,
button.btn.btn-secondary {
  background: var(--surface-strong);
  color: var(--text);
  border: 1px solid var(--border);
  box-shadow: var(--panel-shadow);
}

:focus-visible {
  outline: 2px solid var(--focus);
  outline-offset: 2px;
}

/* Header / nav */
.site-header {
  background: var(--header-bg);
  border: 1px solid var(--header-border);
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.22);
  -webkit-backdrop-filter: blur(12px);
  backdrop-filter: blur(12px);
}

.site-header .logo span,
.site-header a { color: var(--header-link); }
.site-header a:hover { color: var(--header-link-hover); }

/* Header lanterns (Tet) */
body.tet-page .site-header {
  position: fixed;
  overflow: visible;
}

body.tet-page .header-lanterns {
  position: absolute;
  inset: 0;
  pointer-events: none;
  z-index: 2;
}

body.tet-page .header-lantern {
  position: absolute;
  top: calc(100% - 6px);
  width: 40px;
  height: 64px;
  border-radius: 18px;
  background:
    radial-gradient(circle at 50% 25%, rgba(255, 242, 204, 0.85), transparent 45%),
    linear-gradient(180deg, #f04747 0%, #e02424 45%, #b91c1c 100%);
  box-shadow: 0 0 30px rgba(251, 191, 36, 0.75), 0 0 60px rgba(239, 68, 68, 0.45);
  transform-origin: top center;
  animation: headerLanternSwing 7s ease-in-out infinite, headerLanternGlow 2.8s ease-in-out infinite;
  border: 1px solid rgba(120, 10, 10, 0.35);
}

body.tet-page .header-lantern::before {
  content: "";
  position: absolute;
  top: -28px;
  left: 50%;
  width: 3px;
  height: 30px;
  transform: translateX(-50%);
  background: linear-gradient(180deg, rgba(120, 10, 10, 0.9), rgba(255, 210, 125, 0.8));
  box-shadow: 0 0 6px rgba(255, 210, 125, 0.5);
}

body.tet-page .header-lantern::after {
  content: "";
  position: absolute;
  inset: 8px 6px 10px;
  border-radius: 14px;
  background:
    repeating-linear-gradient(
      180deg,
      rgba(255, 255, 255, 0.35) 0,
      rgba(255, 255, 255, 0.35) 2px,
      rgba(255, 255, 255, 0.05) 5px,
      rgba(255, 255, 255, 0.05) 9px
    );
  box-shadow: inset 0 0 8px rgba(255, 220, 170, 0.45);
}

body.tet-page .header-lantern .cap,
body.tet-page .header-lantern .base { display: none; }

body.tet-page .header-lantern {
  overflow: hidden;
}

body.tet-page .header-lantern::marker { content: ""; }

body.tet-page .header-lantern::before {
  box-shadow: 0 0 6px rgba(255, 210, 125, 0.45);
}

body.tet-page .header-lantern:focus { outline: none; }

body.tet-page .header-lantern::selection { background: transparent; }

body.tet-page .header-lantern::after {
  background:
    radial-gradient(circle at 50% 35%, rgba(255, 245, 210, 0.6), transparent 40%),
    repeating-linear-gradient(
      180deg,
      rgba(255, 255, 255, 0.35) 0,
      rgba(255, 255, 255, 0.35) 2px,
      rgba(255, 255, 255, 0.06) 5px,
      rgba(255, 255, 255, 0.06) 9px
    );
}

body.tet-page .header-lantern::after {
  mix-blend-mode: screen;
}

body.tet-page .header-lantern {
  position: absolute;
}

body.tet-page .header-lantern::before {
  border-radius: 2px;
}

body.tet-page .header-lantern::after {
  border: 1px solid rgba(255, 255, 255, 0.08);
}

body.tet-page .header-lantern::before {
  background: linear-gradient(180deg, rgba(255, 220, 140, 0.9), rgba(255, 170, 70, 0.5));
}

body.tet-page .header-lantern {
  box-shadow:
    0 0 10px rgba(255, 210, 125, 0.7),
    0 0 24px rgba(251, 191, 36, 0.65),
    0 0 56px rgba(239, 68, 68, 0.35);
}

body.tet-page .header-lantern.left {
  left: 56px;
}

body.tet-page .header-lantern.right {
  right: 56px;
  animation-delay: 1.2s;
}

@keyframes headerLanternSwing {
  0%, 100% { transform: translateX(0) rotate(0deg); }
  50% { transform: translateX(-2px) rotate(2deg); }
}

@keyframes headerLanternGlow {
  0%, 100% { filter: brightness(1); opacity: 0.95; }
  50% { filter: brightness(1.25); opacity: 1; }
}

@media (max-width: 900px) {
  body.tet-page .header-lantern { width: 30px; height: 48px; }
  body.tet-page .header-lantern.left { left: 18px; }
  body.tet-page .header-lantern.right { right: 18px; }
}

.header-info {
  background: rgba(255, 250, 242, 0.16);
  border: 1px solid var(--border);
  color: var(--header-text);
  box-shadow: var(--panel-shadow);
}

.main-nav a::after { background: var(--cta-gradient); }
.nav-overlay { background: var(--drawer-overlay); }

@media (max-width: 1024px) {
  .main-nav {
    background: var(--drawer-bg);
    border-left: 1px solid var(--drawer-outline);
    box-shadow: -16px 0 40px rgba(0, 0, 0, 0.45);
  }
  .main-nav .drawer-header {
    background: var(--drawer-bg-strong);
    border-bottom: 1px solid var(--drawer-outline);
  }
}

/* Section spacing */
section {
  padding-block: clamp(48px, 6vw, 96px);
}

.intro-dark {
  background: transparent;
}

.intro-dark::before {
  content: none;
}

.section-head { margin-bottom: clamp(16px, 2vw, 28px); }
.section-head p { color: var(--text-muted); }
.section-line {
  width: 90px;
  height: 3px;
  background: var(--cta-gradient);
  margin-top: 0.6rem;
  border-radius: 999px;
}

/* Glass panel token */
.glass-panel,
.card,
.moment-card,
.highlight-card,
.stat-card,
.intro-panel,
.hero-message,
.scan-panel,
.count-item,
.tet-card,
.lucky-box,
.timeline-content,
.accordion,
.accordion-item,
.steps li,
.auth-card {
  background: var(--panel-bg);
  border: 1px solid var(--panel-border);
  box-shadow: var(--panel-shadow);
  border-radius: var(--radius);
  -webkit-backdrop-filter: blur(var(--panel-blur));
  backdrop-filter: blur(var(--panel-blur));
}

/* Hero */
.hero {
  background: transparent;
  background-image: none;
  min-height: 0;
  padding: calc(var(--header-height) + 16px) 0 clamp(32px, 6vw, 64px);
  position: relative;
  overflow: hidden;
}

.hero::before {
  content: "";
  position: absolute;
  top: -160px;
  right: -140px;
  width: 520px;
  height: 520px;
  background: radial-gradient(circle, rgba(255, 210, 125, 0.2), transparent 70%);
  opacity: 0.35;
  filter: blur(20px);
  pointer-events: none;
  z-index: 0;
}

.hero-inner {
  grid-template-columns: 1fr;
  gap: clamp(16px, 3vw, 32px);
  padding: clamp(24px, 4vw, 48px) 0 0;
}

.hero-content { max-width: 720px; }
.hero .accent { color: #ffd27d; }
.hero-badge { background: var(--surface-strong); border: 1px solid var(--border); color: var(--text); }
.hero-message, .scan-panel, .count-item { color: var(--text); }
.scan-bar { background: rgba(0, 0, 0, 0.08); border-radius: 999px; overflow: hidden; }
.scan-fill { background: var(--cta-gradient); }
.countdown { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 0.8rem; }
.count-item strong { color: #ffd27d; }

/* Tet sections */
.tet-tech-grid,
.highlights-grid,
.achievements-grid,
.card-list {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: clamp(16px, 2.5vw, 28px);
}

.tet-card,
.highlight-card,
.moment-card,
.stat-card,
.card {
  overflow: hidden;
}

.tet-card h3,
.timeline-content h3,
.highlight-card h3,
.card h3 { color: var(--text); }

.tet-card p,
.timeline-content p,
.highlight-card p,
.card p { color: var(--text-muted); }

.lucky-box {
  padding: clamp(20px, 3vw, 32px);
  text-align: center;
}

.lucky-result {
  margin-top: 1rem;
  color: var(--text-muted);
}

.timeline-vertical { display: grid; gap: 1.4rem; }
.timeline-item { display: grid; grid-template-columns: 32px 1fr; gap: 1rem; align-items: start; }
.timeline-dot {
  position: relative;
  width: 20px;
  height: 34px;
  border-radius: 999px;
  margin-top: 10px;
  transform-origin: 50% -14px;
  animation: lanternSway 2.4s ease-in-out infinite;
  will-change: transform;
  background:
    radial-gradient(circle at 50% 22%, rgba(255, 255, 255, 0.95) 0 12%, transparent 13%),
    linear-gradient(180deg, rgba(255, 255, 255, 0.22) 0%, transparent 35%),
    linear-gradient(180deg,
      #ffcf74 0%,
      #ff9b45 18%,
      #ff6b4a 45%,
      #ff9b45 70%,
      #ffcf74 100%);
  border: 1px solid rgba(255, 206, 140, 0.6);
  box-shadow: 0 0 18px rgba(255, 120, 64, 0.85), 0 0 32px rgba(255, 90, 60, 0.45);
}
.timeline-dot::before {
  content: "";
  position: absolute;
  top: -20px;
  left: 50%;
  width: 2px;
  height: 16px;
  transform: translateX(-50%);
  background: linear-gradient(180deg, rgba(255, 236, 200, 0.9), rgba(255, 180, 90, 0.35));
  border-radius: 999px;
  opacity: 0.85;
  box-shadow: 0 0 6px rgba(255, 200, 150, 0.35);
  filter: drop-shadow(0 0 8px rgba(255, 120, 64, 0.45));
  pointer-events: none;
}
.timeline-dot::after {
  content: "";
  position: absolute;
  left: 50%;
  bottom: -8px;
  width: 6px;
  height: 6px;
  transform: translateX(-50%);
  border-radius: 50%;
  background: radial-gradient(circle, #ffd7a2 0%, #ff7a4a 70%, transparent 74%);
  border: 1px solid rgba(255, 214, 160, 0.4);
  box-shadow: 0 0 12px rgba(255, 150, 90, 0.7);
  opacity: 0.95;
  filter: drop-shadow(0 0 8px rgba(255, 120, 64, 0.45));
  pointer-events: none;
}

@keyframes lanternSway {
  0% { transform: translateX(0) rotate(0deg); }
  20% { transform: translateX(-4px) rotate(-10deg); }
  50% { transform: translateX(0) rotate(0deg); }
  80% { transform: translateX(4px) rotate(10deg); }
  100% { transform: translateX(0) rotate(0deg); }
}

@media (prefers-reduced-motion: reduce) {
  .timeline-dot { animation: none; }
}

/* Slider / images */
.moments-viewport { padding-inline: clamp(8px, 2vw, 16px); }
.moments-track { gap: clamp(12px, 2vw, 20px); }
.moment-card img,
.highlight-card img,
.card img {
  width: 100%;
  aspect-ratio: 4 / 3;
  object-fit: cover;
}

.moment-card span {
  background: rgba(10, 5, 5, 0.65);
  color: #fff7ed;
}

/* Forms */
input, select, textarea {
  background: var(--surface-strong);
  color: var(--text);
  border: 1px solid var(--border);
}

input:focus, select:focus, textarea:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px rgba(255, 210, 125, 0.25);
}

/* Auth layout */
.auth-page-wrapper::before,
.golden-rings,
.floating-lanterns,
.stellar-dust,
.aurora-rings,
.hero-decor,
#starfield-canvas {
  display: none;
}

.auth-card { padding: clamp(20px, 3vw, 32px); }
.auth-chip { background: rgba(255, 210, 125, 0.16); border: 1px solid var(--border); }
.btn-tet {
  background: var(--cta-gradient);
  border: 1px solid rgba(255, 210, 125, 0.45);
  color: #fff7ed;
  box-shadow: var(--cta-shadow);
}
.btn-tet:hover {
  filter: brightness(1.04);
}
.link-tet { color: var(--accent); }
.link-tet:hover { color: #ffd9a5; }

/* Footer */
.site-footer {
  background: linear-gradient(180deg, rgba(88, 14, 14, 0.92), rgba(35, 6, 6, 0.98));
  color: #fff7ed;
  border-top: 1px solid var(--border);
}

.site-footer .footer-inner {
  display: grid;
  grid-template-columns: minmax(260px, 1.2fr) repeat(3, minmax(160px, 1fr));
  gap: clamp(16px, 3vw, 32px);
  align-items: start;
}

.site-footer .footer-brand {
  max-width: 420px;
}

.site-footer .footer-inner ul {
  list-style: none;
  margin: 0.6rem 0 0;
  padding: 0;
}

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

@media (max-width: 768px) {
  .site-footer .footer-inner {
    grid-template-columns: 1fr;
  }
}

.site-footer a { color: #ffe9c7; }
.site-footer a:hover { color: var(--accent); }
.footer-badge,
.footer-cta { background: rgba(255, 210, 125, 0.14); border: 1px solid var(--panel-border); }

.footer-cta {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  padding: 0.45rem 0.8rem;
  border-radius: 999px;
  line-height: 1.45;
}

.footer-logos img {
  height: 40px;
  width: 40px;
  object-fit: contain;
}

/* Responsive */
@media (max-width: 1024px) {
  .tet-tech-grid,
  .highlights-grid,
  .achievements-grid,
  .card-list {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
  .countdown { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}

@media (max-width: 768px) {
  .tet-tech-grid,
  .highlights-grid,
  .achievements-grid,
  .card-list {
    grid-template-columns: 1fr;
  }
  .intro-grid { grid-template-columns: 1fr; }
  .hero-inner { padding-top: 1.5rem; }
  .cta-group { display: grid; gap: 0.8rem; }
  .cta-group .btn { width: 100%; }
}

@media (max-width: 480px) {
  .timeline-item { grid-template-columns: 24px 1fr; }
  .header-info { display: none; }
}

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

/* === FINAL PATCH: Tet Tech UI (cream light + red-brown dark) === */
:root {
  --bg: #7a1212;
  --bg2: #2a0909;
  --surface: rgba(66, 14, 14, 0.68);
  --surface2: rgba(80, 18, 18, 0.82);
  --text: #fff7ed;
  --muted: rgba(255, 244, 230, 0.78);
  --border: rgba(255, 210, 125, 0.24);
  --accent: #ffd27d;
  --accent2: #f59e0b;
}

html.dark {
  --bg: #1a0a0a;
  --bg2: #120707;
  --surface: rgba(22, 10, 8, 0.55);
  --surface2: rgba(28, 12, 10, 0.85);
  --text: #fff7ed;
  --muted: rgba(255, 244, 230, 0.78);
  --border: rgba(255, 214, 165, 0.18);
  --accent: #ffd27d;
  --accent2: #f59e0b;
}

body {
  background: linear-gradient(180deg, var(--bg), var(--bg2));
  color: var(--text);
}

body::before {
  content: "";
  position: fixed;
  inset: 0;
  background: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 1600 900'%3E%3Cpath d='M-200 520 Q400 260 950 370 T1800 360' fill='none' stroke='%23f59e0b' stroke-width='90' stroke-linecap='round' stroke-opacity='0.12'/%3E%3C/svg%3E") center/cover no-repeat;
  opacity: 0.12;
  filter: blur(36px);
  pointer-events: none;
  z-index: 0;
}

body::after {
  content: "";
  position: fixed;
  left: -10vw;
  right: -10vw;
  top: -30vh;
  height: 60vh;
  background: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 1600 400'%3E%3Cdefs%3E%3ClinearGradient id='g' x1='0' y1='0' x2='1' y2='1'%3E%3Cstop offset='0%25' stop-color='%23f59e0b' stop-opacity='0.25'/%3E%3Cstop offset='55%25' stop-color='%23ef4444' stop-opacity='0.22'/%3E%3Cstop offset='100%25' stop-color='%23fbbf24' stop-opacity='0.18'/%3E%3C/linearGradient%3E%3C/defs%3E%3Cpath d='M-200 260 Q350 80 760 160 T1800 150' fill='none' stroke='url(%23g)' stroke-width='140' stroke-linecap='round' stroke-opacity='0.7'/%3E%3Cpath d='M-120 340 Q520 220 1180 280 T1860 260' fill='none' stroke='%23f59e0b' stroke-width='90' stroke-linecap='round' stroke-opacity='0.35'/%3E%3C/svg%3E") center/cover no-repeat;
  opacity: 0.14;
  filter: blur(48px);
  pointer-events: none;
  z-index: 0;
}

body::after { content: none; }

section { padding-block: clamp(48px, 6vw, 96px); }

.container { max-width: 1180px; }

.section-head h2,
.section-head p {
  color: var(--text);
}

.section-head p { color: var(--muted); }

body.home .featured-tips h2,
body.home .categories h2,
body.home .rescue-steps h2,
body.home .faq h2,
body.home .contact h2,
body.tet-page .featured-tips h2,
body.tet-page .categories h2,
body.tet-page .rescue-steps h2,
body.tet-page .faq h2,
body.tet-page .contact h2 {
  color: var(--text) !important;
  text-shadow: none !important;
}

.section-line { background: linear-gradient(90deg, var(--accent), var(--accent2)); }

.glass-panel,
.hero-message,
.scan-panel,
.count-item,
.card,
.tet-card,
.stat-card,
.moment-card,
.highlight-card,
.timeline-content,
.lucky-box,
.accordion,
.accordion-item,
.steps li,
.auth-card,
.intro-panel {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 20px;
  -webkit-backdrop-filter: blur(12px);
  backdrop-filter: blur(12px);
  box-shadow: 0 16px 36px rgba(0, 0, 0, 0.12);
}

.hero-content {
  background: var(--surface2);
  border: 1px solid var(--border);
  border-radius: 22px;
  -webkit-backdrop-filter: blur(12px);
  backdrop-filter: blur(12px);
  box-shadow: 0 18px 40px rgba(0, 0, 0, 0.12);
  padding: clamp(20px, 3vw, 36px);
}

.hero-badge { color: var(--text); border-color: var(--border); background: var(--surface2); }

.hero h1,
.hero p { color: var(--text); }

.countdown {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 0.8rem;
}

.count-item strong { color: var(--accent2); font-size: 1.2rem; }
.count-item span { color: var(--muted); font-size: 0.82rem; }

.scan-panel {
  display: grid;
  grid-template-columns: 1fr auto;
  align-items: center;
  gap: 0.8rem;
}

.hero-content .scan-panel {
  margin-top: 0.75rem;
  padding: 0;
  background: transparent;
  border: none;
  box-shadow: none;
  border-radius: 0;
}

.hero-content .scan-bar {
  height: 6px;
  background: rgba(255, 255, 255, 0.12);
  border: 1px solid rgba(255, 255, 255, 0.16);
  box-shadow: inset 0 0 0 1px rgba(0, 0, 0, 0.18);
}

.hero-content .scan-bar::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(90deg, transparent 0%, rgba(255, 255, 255, 0.6) 50%, transparent 100%);
  transform: translateX(-60%);
  animation: scanShimmer 2.2s ease-in-out infinite;
  opacity: 0.6;
  pointer-events: none;
}

.hero-content .scan-fill {
  background: linear-gradient(90deg, #ffd27d, #f97316);
  box-shadow: 0 0 16px rgba(255, 163, 46, 0.85), 0 0 28px rgba(255, 120, 0, 0.35);
}

.scan-bar {
  height: 5px;
  background: linear-gradient(90deg, rgba(255, 255, 255, 0.18), rgba(255, 255, 255, 0.06));
  border-radius: 999px;
  overflow: hidden;
  position: relative;
}

.scan-bar::before {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(90deg, transparent 0%, rgba(255, 255, 255, 0.35) 50%, transparent 100%);
  transform: translateX(-80%);
  animation: scanSweep 1.8s ease-in-out infinite;
  opacity: 0.7;
  pointer-events: none;
}

.scan-fill {
  background: linear-gradient(90deg, var(--accent), var(--accent2));
  position: relative;
  overflow: hidden;
  height: 100%;
  width: 0;
  min-width: 10%;
  transition: width 0.35s ease;
  display: block;
  border-radius: inherit;
  box-shadow: 0 0 12px rgba(255, 210, 125, 0.65), 0 0 24px rgba(255, 210, 125, 0.35);
  background-size: 200% 100%;
  animation: scanGradient 2.8s linear infinite;
}

.scan-fill::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(120deg, transparent 0%, rgba(255,255,255,0.35) 45%, transparent 70%);
  transform: translateX(-60%);
  animation: scanShimmer 2.4s ease-in-out infinite;
}

.device-panel {
  margin-top: 0.7rem;
  padding: 0.9rem 1rem;
  display: grid;
  gap: 0.6rem;
  background: var(--surface2);
  border: 1px solid var(--border);
  border-radius: 16px;
  box-shadow: 0 12px 28px rgba(0, 0, 0, 0.18);
}


.device-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-weight: 600;
  color: var(--text);
}

.device-type {
  padding: 0.15rem 0.6rem;
  border-radius: 999px;
  font-size: 0.78rem;
  letter-spacing: 0.3px;
  color: var(--text);
  background: rgba(255, 210, 125, 0.18);
  border: 1px solid rgba(255, 210, 125, 0.35);
}

.device-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 0.5rem 0.8rem;
}


.device-item {
  display: flex;
  flex-direction: column;
  gap: 0.15rem;
  font-size: 0.9rem;
  color: var(--muted);
}

.device-item strong {
  color: var(--text);
  font-weight: 600;
}

.device-note {
  font-size: 0.78rem;
  color: rgba(255, 244, 230, 0.7);
}


@media (max-width: 768px) {
  .device-grid { grid-template-columns: 1fr; }
}

@keyframes scanShimmer {
  0% { transform: translateX(-60%); }
  100% { transform: translateX(60%); }
}

@keyframes scanSweep {
  0% { transform: translateX(-80%); opacity: 0.25; }
  50% { opacity: 0.8; }
  100% { transform: translateX(80%); opacity: 0.25; }
}

@keyframes scanGradient {
  0% { background-position: 0% 50%; }
  100% { background-position: 100% 50%; }
}

@media (prefers-reduced-motion: reduce) {
  .scan-bar::before,
  .scan-fill {
    animation: none !important;
  }
}

.btn,
a.btn,
button.btn {
  background: linear-gradient(90deg, var(--accent2), var(--accent));
  color: #fff7ed;
  border: 1px solid rgba(255, 210, 125, 0.45);
}

.btn.btn-secondary,
a.btn.btn-secondary,
button.btn.btn-secondary {
  background: var(--surface2);
  color: var(--text);
  border: 1px solid var(--border);
}

.tet-tech-grid,
.highlights-grid,
.achievements-grid,
.card-list {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: clamp(16px, 2.5vw, 28px);
}

.moment-card img,
.highlight-card img,
.card img {
  aspect-ratio: 4 / 3;
  object-fit: cover;
}

@media (max-width: 1024px) {
  .tet-tech-grid,
  .highlights-grid,
  .achievements-grid,
  .card-list { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}

@media (max-width: 768px) {
  .tet-tech-grid,
  .highlights-grid,
  .achievements-grid,
  .card-list { grid-template-columns: 1fr; }
  .countdown { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .cta-group { display: grid; gap: 0.8rem; }
  .cta-group .btn { width: 100%; }
}

/* --- PATCH: Unified Tet landing refresh (2026-01-27) --- */
:root {
  --bg-gradient: linear-gradient(180deg, #7a1212 0%, #4b0c0c 55%, #2a0909 100%);
  --bg: #4b0c0c;
  --surface: rgba(88, 20, 20, 0.5);
  --surface-strong: rgba(96, 22, 22, 0.78);
  --border: rgba(255, 210, 125, 0.26);
  --text: #fff7ed;
  --text-muted: rgba(255, 244, 230, 0.72);
  --accent: #ffd27d;
  --cta-gradient: linear-gradient(90deg, #dc2626, #f59e0b);
  --cta-shadow: 0 16px 36px rgba(0, 0, 0, 0.28);
  --panel-bg: rgba(66, 14, 14, 0.68);
  --panel-border: rgba(255, 210, 125, 0.32);
  --panel-shadow: 0 18px 40px rgba(0, 0, 0, 0.3);
  --panel-blur: 12px;
  --radius: 18px;
  --focus: rgba(255, 210, 125, 0.45);
  --container: 1180px;
  --header-bg: rgba(90, 14, 14, 0.85);
  --header-border: rgba(255, 214, 165, 0.24);
  --header-border-strong: rgba(255, 214, 165, 0.36);
  --header-link: #fff7ed;
  --header-link-hover: #ffd27d;
  --drawer-bg: rgba(90, 14, 14, 0.96);
  --drawer-bg-strong: rgba(60, 10, 10, 0.98);
  --drawer-overlay: rgba(18, 6, 6, 0.7);
  --drawer-outline: rgba(255, 214, 165, 0.2);
}

html.dark {
  --bg-gradient: linear-gradient(180deg, #1a0a0a 0%, #120707 60%, #0b0505 100%);
  --bg: #120707;
  --surface: rgba(26, 10, 10, 0.6);
  --surface-strong: rgba(32, 12, 12, 0.88);
  --border: rgba(255, 214, 165, 0.16);
  --text: #fff7ed;
  --text-muted: rgba(255, 244, 230, 0.7);
  --accent: #ffd27d;
  --cta-gradient: linear-gradient(90deg, #f87171, #f59e0b);
  --cta-shadow: 0 18px 36px rgba(0, 0, 0, 0.45);
  --panel-bg: rgba(22, 9, 9, 0.6);
  --panel-border: rgba(255, 210, 125, 0.2);
  --panel-shadow: 0 20px 42px rgba(0, 0, 0, 0.45);
  --focus: rgba(255, 210, 125, 0.6);
  --header-bg: rgba(22, 9, 9, 0.8);
  --header-border: rgba(255, 214, 165, 0.16);
  --header-border-strong: rgba(255, 214, 165, 0.26);
  --header-link: #fff7ed;
  --header-link-hover: #ffd27d;
  --drawer-bg: rgba(26, 10, 10, 0.96);
  --drawer-bg-strong: rgba(18, 8, 8, 0.98);
  --drawer-overlay: rgba(10, 4, 4, 0.75);
  --drawer-outline: rgba(255, 214, 165, 0.16);
}

html, body { overflow-x: hidden; }
body {
  background: var(--bg-gradient);
  background-image: none;
}

body::before {
  content: "";
  position: fixed;
  inset: 0;
  background: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 1600 900'%3E%3Cpath d='M-200 520 Q400 260 950 370 T1800 360' fill='none' stroke='%23f59e0b' stroke-width='90' stroke-linecap='round' stroke-opacity='0.12'/%3E%3Cpath d='M-120 740 Q520 520 1180 640 T1860 620' fill='none' stroke='%23ef4444' stroke-width='70' stroke-linecap='round' stroke-opacity='0.08'/%3E%3C/svg%3E") center/cover no-repeat;
  opacity: 0.12;
  filter: blur(36px);
  pointer-events: none;
  z-index: 0;
}

body::after { content: none; }

.section-line { background: var(--cta-gradient); }

.glass-panel,
.card,
.moment-card,
.highlight-card,
.stat-card,
.intro-panel,
.hero-message,
.scan-panel,
.count-item,
.tet-card,
.lucky-box,
.timeline-content,
.accordion,
.accordion-item,
.steps li,
.auth-card {
  background: var(--panel-bg);
  border: 1px solid var(--panel-border);
  box-shadow: var(--panel-shadow);
  border-radius: var(--radius);
  -webkit-backdrop-filter: blur(var(--panel-blur));
  backdrop-filter: blur(var(--panel-blur));
}

.scan-bar { background: rgba(0, 0, 0, 0.08); }
.count-item strong { color: var(--accent); }

.card-list,
.tet-tech-grid,
.highlights-grid,
.achievements-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: clamp(16px, 2.5vw, 28px);
}

@media (max-width: 1024px) {
  .card-list,
  .tet-tech-grid,
  .highlights-grid,
  .achievements-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (max-width: 768px) {
  .card-list,
  .tet-tech-grid,
  .highlights-grid,
  .achievements-grid {
    grid-template-columns: 1fr;
  }
}

.footer-logos img {
  height: 36px;
  width: 36px;
  object-fit: contain;
}

/* Match home to auth glass style */
body.home .hero-content {
  background: var(--panel-bg);
  border: 1px solid var(--panel-border);
  box-shadow: var(--panel-shadow);
  border-radius: var(--radius);
  -webkit-backdrop-filter: blur(var(--panel-blur));
  backdrop-filter: blur(var(--panel-blur));
  padding: clamp(20px, 3vw, 36px);
}

body.home .hero-badge {
  background: var(--surface-strong);
  border: 1px solid var(--border);
  color: var(--text);
}

body.home .hero h1,
body.home .hero p {
  color: var(--text);
}

body.home .hero-message,
body.home .scan-panel,
body.home .count-item {
  background: var(--panel-bg);
  border: 1px solid var(--panel-border);
  box-shadow: var(--panel-shadow);
  color: var(--text);
}

body.home .scan-panel {
  background: transparent;
  border: none;
  box-shadow: none;
  padding: 0;
  border-radius: 0;
}

body.home .scan-label,
body.home .count-item span {
  color: var(--text-muted);
}

body.home .scan-fill { background: var(--cta-gradient); }
body.home .count-item strong { color: var(--accent); }

body.home .tet-card,
body.home .card,
body.home .highlight-card,
body.home .stat-card,
body.home .moment-card,
body.home .lucky-box,
body.home .timeline-content,
body.home .accordion,
body.home .accordion-item,
body.home .steps li {
  background: var(--panel-bg);
  border: 1px solid var(--panel-border);
  box-shadow: var(--panel-shadow);
}

body.home .section-head h2,
body.home .section-head p {
  color: var(--text);
}

body.home .section-head p { color: var(--text-muted); }

/* Tip detail layout */
.tip-detail-card {
  max-width: none;
  width: 100%;
  flex: 1 1 100%;
  padding: clamp(16px, 2vw, 24px);
}

.tip-detail {
  max-width: 1040px;
}

.tip-detail-thumb {
  width: 100%;
  height: auto;
  display: block;
  border-radius: var(--radius);
  aspect-ratio: auto;
  object-fit: cover;
}

.tip-content {
  margin-top: 1rem;
  line-height: 1.75;
  font-size: 1.02rem;
  color: var(--text);
  word-break: break-word;
}

/* Keep article content visible even if global reveal/swipe classes exist */
.tip-content .reveal,
.tip-content .swipe-in {
  opacity: 1 !important;
  transform: none !important;
  visibility: visible !important;
}

.tip-content h2,
.tip-content h3,
.tip-content h4 {
  margin: 1.2em 0 0.5em;
  line-height: 1.3;
}

.tip-content p {
  margin: 0 0 0.9em;
}

.tip-content ul,
.tip-content ol {
  margin: 0 0 1em 1.2em;
}

.tip-content img {
  max-width: 100%;
  height: auto;
  display: block;
  margin: 1em 0;
  border-radius: calc(var(--radius) - 4px);
}

.tip-meta {
  margin-top: 1em;
  color: var(--muted);
}

/* Image viewer */
.image-viewer {
  position: fixed;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  pointer-events: none;
  z-index: 9999;
  transition: opacity 0.2s ease;
}

.image-viewer.open {
  opacity: 1;
  pointer-events: auto;
}

.image-viewer-backdrop {
  position: absolute;
  inset: 0;
  background: rgba(5, 3, 3, 0.75);
  -webkit-backdrop-filter: blur(2px);
  backdrop-filter: blur(2px);
}

.image-viewer-img {
  position: relative;
  z-index: 1;
  max-width: min(92vw, 1200px);
  max-height: 88vh;
  width: auto;
  height: auto;
  border-radius: calc(var(--radius) + 2px);
  box-shadow: 0 18px 40px rgba(0, 0, 0, 0.45);
  background: rgba(20, 8, 8, 0.85);
}

.image-viewer-close {
  position: absolute;
  top: 24px;
  right: 24px;
  z-index: 2;
  width: 44px;
  height: 44px;
  border-radius: 50%;
  border: 1px solid rgba(255, 210, 125, 0.4);
  background: rgba(20, 8, 8, 0.8);
  color: #fff3e0;
  font-size: 28px;
  line-height: 1;
  cursor: pointer;
}

.image-viewer-close:hover {
  background: rgba(40, 12, 12, 0.9);
}

body.image-viewer-open {
  overflow: hidden;
}

/* Force Tet red background (fix white flash/overrides) */
:root { --bg-gradient: linear-gradient(180deg, var(--bg), var(--bg2)); }
html.dark { --bg-gradient: linear-gradient(180deg, var(--bg), var(--bg2)); }

html, body {
  background: var(--bg-gradient);
  background-color: var(--bg);
  background-image: none;
}

body.tet-page,
body.home {
  background: var(--bg-gradient);
  background-color: var(--bg);
}

/* Global scan widget */
.global-scan {
  position: fixed;
  right: clamp(12px, 2vw, 24px);
  top: calc(var(--header-height) + 10px);
  z-index: 20;
  width: min(320px, 86vw);
  pointer-events: none;
}

.global-scan .scan-panel {
  background: transparent;
  border: none;
  box-shadow: none;
  border-radius: 0;
  padding: 0;
  grid-template-columns: 1fr auto;
  gap: 0.5rem;
  align-items: center;
}

.global-scan .scan-value {
  text-align: right;
  font-variant-numeric: tabular-nums;
}

.global-scan .scan-label {
  font-size: 0.85rem;
  color: var(--text-muted);
}

.global-scan .scan-bar {
  height: 6px;
  background: rgba(0, 0, 0, 0.18);
}

@media (max-width: 768px) {
  .global-scan { width: min(300px, 90vw); }
}

main,
section,
.intro,
.intro-dark,
.tet-tech,
.tet-lucky,
.tet-timeline,
.moments,
.achievements,
.highlights,
.featured-tips,
.categories,
.rescue-steps,
.faq,
.contact {
  background: transparent;
}

/* Tet effects layers (lanterns + fireworks) */
.tet-2026-lantern-layer,
.tet-2026-fireworks-canvas {
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: 0;
}

.tet-2026-lantern {
  position: absolute;
  filter: blur(0.6px);
  opacity: 0.18;
  animation-name: tet-2026-lantern-float;
  animation-timing-function: linear;
  animation-iteration-count: infinite;
  will-change: transform;
}

@keyframes tet-2026-lantern-float {
  0% { transform: translateY(-12vh) translateX(0); }
  50% { transform: translateY(52vh) translateX(-8px); }
  100% { transform: translateY(108vh) translateX(8px); }
}

@media (prefers-reduced-motion: reduce) {
  .tet-2026-lantern { animation: none !important; }
}

/* === Tet Binh Ngo visual refresh (brand-rescue + festive) === */
:root {
  --font-display: "Sora", "Segoe UI", Arial, sans-serif;
  --tet-decor-red: #b91c1c;
  --tet-decor-gold: #fbbf24;
  --tet-decor-amber: #f59e0b;
  --tet-decor-ember: #ef4444;
  --glass-strong: rgba(66, 14, 14, 0.78);
  --glass-soft: rgba(48, 12, 12, 0.58);
  --glow-warm: 0 18px 36px rgba(244, 196, 48, 0.16);
  --glow-red: 0 18px 40px rgba(239, 68, 68, 0.18);
  --stroke-gold: rgba(255, 210, 125, 0.38);
  --stroke-soft: rgba(255, 210, 125, 0.2);
  --chip-bg: rgba(251, 191, 36, 0.16);
}

body.tet-page {
  color: var(--text);
  background: url("/images/backgroundtet.jpg") center/cover no-repeat fixed;
}

body.tet-page::before,
body.tet-page::after {
  content: none;
}

body.tet-page main,
body.tet-page section {
  position: relative;
  z-index: 1;
}

.section-head h2,
.hero h1,
.tet-card h3,
.highlight-card h3,
.stat-card h3,
.timeline-content h3 {
  font-family: var(--font-display);
  letter-spacing: 0.2px;
}

.section-head h2 {
  text-transform: uppercase;
  font-size: clamp(1.5rem, 2.6vw, 2.2rem);
  color: #fff7ed;
}

.section-line {
  background: linear-gradient(90deg, var(--tet-decor-gold), var(--tet-decor-ember));
  box-shadow: 0 6px 16px rgba(249, 115, 22, 0.35);
}

/* Hero */
body.home .hero {
  min-height: 100vh;
  padding: calc(var(--header-height) + 36px) 0 120px;
  background-image:
    linear-gradient(120deg, rgba(12, 6, 6, 0.86), rgba(25, 8, 8, 0.7)),
    url('/images/banner.jpg');
  background-position: center;
  background-size: cover;
  border-bottom: 1px solid rgba(255, 210, 125, 0.16);
}

body.home .hero::before {
  content: "";
  position: absolute;
  inset: auto -10% -20% -10%;
  height: 55%;
  background: radial-gradient(circle at 20% 40%, rgba(251, 191, 36, 0.35), transparent 60%),
              radial-gradient(circle at 80% 30%, rgba(239, 68, 68, 0.22), transparent 60%);
  opacity: 0.8;
  filter: blur(30px);
  pointer-events: none;
  z-index: 1;
}

body.home .hero-inner {
  position: relative;
  z-index: 2;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.45em;
  font-weight: 700;
  letter-spacing: 1.2px;
  text-transform: uppercase;
  color: #fff7ed;
  background: rgba(12, 6, 6, 0.6);
  border: 1px solid var(--stroke-soft);
  box-shadow: var(--glow-warm);
  padding: 0.45em 1em;
}

.hero-content {
  background: linear-gradient(140deg, var(--glass-strong), rgba(35, 8, 8, 0.8));
  border: 1px solid var(--stroke-gold);
  box-shadow: var(--glow-warm), var(--glow-red);
  padding: clamp(20px, 3.5vw, 42px);
}

.hero h1 {
  font-size: clamp(2.4rem, 4.5vw, 3.4rem);
  color: #fff7ed;
}

.hero h1 .accent { color: var(--tet-decor-gold); }

.hero p { color: rgba(255, 244, 230, 0.85); }

.hero-message {
  background: rgba(12, 6, 6, 0.55);
  border: 1px dashed rgba(251, 191, 36, 0.4);
  color: #fff7ed;
  box-shadow: 0 8px 20px rgba(0, 0, 0, 0.25);
}

.scan-panel {
  background: transparent;
  border: none;
  box-shadow: none;
  padding: 0;
  border-radius: 0;
}

.scan-bar {
  height: 5px;
  background: linear-gradient(90deg, rgba(255, 255, 255, 0.18), rgba(255, 255, 255, 0.06));
  border-radius: 999px;
}

.scan-fill {
  background: linear-gradient(90deg, var(--tet-decor-ember), var(--tet-decor-gold));
  min-width: 10%;
  transition: width 0.35s ease;
  box-shadow: 0 0 12px rgba(255, 210, 125, 0.65), 0 0 24px rgba(255, 210, 125, 0.35);
}

.cta-group .btn {
  font-weight: 700;
  letter-spacing: 0.3px;
}

.cta-group .btn-primary {
  background: linear-gradient(90deg, var(--tet-decor-ember), var(--tet-decor-amber));
  box-shadow: 0 14px 30px rgba(249, 115, 22, 0.35);
}

.cta-group .btn-secondary {
  background: rgba(12, 6, 6, 0.6);
  border: 1px solid var(--stroke-soft);
  color: #fff7ed;
}

/* Tet cards */
.tet-tech-grid {
  gap: clamp(16px, 2.4vw, 28px);
}

.tet-card {
  background: linear-gradient(150deg, rgba(22, 8, 8, 0.92), rgba(74, 18, 18, 0.72));
  border: 1px solid var(--stroke-gold);
  box-shadow: 0 16px 36px rgba(0, 0, 0, 0.35);
  padding: 1.4rem 1.5rem;
}

.tet-card .tet-icon {
  font-size: 1.8rem;
  background: var(--chip-bg);
  border: 1px solid var(--stroke-soft);
  border-radius: 14px;
  padding: 0.45rem 0.6rem;
  display: inline-flex;
  box-shadow: inset 0 0 12px rgba(251, 191, 36, 0.2);
}

.tet-card p { color: rgba(255, 244, 230, 0.78); }

/* Lucky box */
.lucky-box {
  background: linear-gradient(135deg, rgba(22, 8, 8, 0.88), rgba(90, 24, 24, 0.65));
  border: 1px solid var(--stroke-gold);
  box-shadow: var(--glow-warm);
}

.lucky-result { color: rgba(255, 244, 230, 0.8); }

/* Timeline */
.timeline-content {
  background: rgba(12, 6, 6, 0.6);
  border: 1px solid rgba(255, 210, 125, 0.2);
}

.timeline-dot {
  box-shadow: 0 0 0 6px rgba(251, 191, 36, 0.12);
}

/* Moments + highlights */
.moment-card,
.highlight-card,
.stat-card,
.card {
  border: 1px solid rgba(255, 210, 125, 0.2);
  background: rgba(20, 8, 8, 0.75);
  box-shadow: 0 16px 36px rgba(0, 0, 0, 0.28);
}

.moment-card span {
  background: rgba(10, 5, 5, 0.7);
  border: 1px solid rgba(255, 210, 125, 0.2);
}

.slider-btn {
  background: rgba(10, 5, 5, 0.7);
  color: #fff7ed;
  border: 1px solid rgba(255, 210, 125, 0.3);
}

.stat-card h3 {
  color: var(--tet-decor-gold);
  text-shadow: 0 0 16px rgba(251, 191, 36, 0.4);
}

/* Intro section */
.intro-dark {
  background: radial-gradient(circle at top left, rgba(251, 191, 36, 0.12), transparent 40%),
              radial-gradient(circle at bottom right, rgba(239, 68, 68, 0.12), transparent 45%),
              rgba(18, 6, 6, 0.85);
}

.intro-panel {
  background: rgba(12, 6, 6, 0.7);
  border: 1px solid rgba(255, 210, 125, 0.24);
  box-shadow: 0 18px 40px rgba(0, 0, 0, 0.3);
}

.intro-media img {
  border: 1px solid rgba(255, 210, 125, 0.2);
  box-shadow: 0 18px 40px rgba(0, 0, 0, 0.35);
}

/* Footer align */
.site-footer {
  background: linear-gradient(180deg, rgba(58, 10, 10, 0.96), rgba(20, 6, 6, 0.98));
}

/* Sidebar panels: remove heavy box frames */
body.tet-page .sidebar,
body.tet-page .sidebar section {
  background: transparent;
  border: none;
  box-shadow: none;
  padding: 0;
}

body.tet-page .sidebar h3 {
  color: #fff7ed;
  margin-top: 1.2rem;
}

body.tet-page .sidebar ul {
  margin: 0.4rem 0 1rem;
  padding-left: 1.2rem;
}

body.tet-page .sidebar li {
  color: rgba(255, 244, 230, 0.85);
}

html.dark body.tet-page .sidebar {
  background: transparent !important;
  border: none !important;
  box-shadow: none !important;
  padding: 0 !important;
}

/* Steps + FAQ: remove hard frames */
body.tet-page .steps li,
body.home .steps li {
  background: rgba(12, 6, 6, 0.5);
  border: none;
  box-shadow: none;
}

body.tet-page .steps li:hover,
body.home .steps li:hover {
  transform: translateY(-2px);
  box-shadow: 0 10px 24px rgba(0, 0, 0, 0.2);
}

body.tet-page .accordion,
body.tet-page .accordion-item,
body.home .accordion,
body.home .accordion-item {
  background: transparent;
  border: 0;
  box-shadow: none;
}

body.tet-page .accordion-item,
body.home .accordion-item {
  border-radius: 14px;
  background: rgba(12, 6, 6, 0.45);
  border: none;
  margin-bottom: 0.65rem;
}

body.tet-page .accordion-title {
  color: #fff7ed;
}

body.tet-page .accordion-content {
  color: rgba(255, 244, 230, 0.78);
}

/* Mobile menu: remove divider frames */
@media (max-width: 1024px) {
  body.tet-page .main-nav a {
    border-bottom: none !important;
  }
  body.tet-page .main-nav .drawer-header {
    border-bottom: none !important;
    box-shadow: none !important;
  }
  body.tet-page .main-nav a::after {
    display: none;
  }
}

@media (max-width: 900px) {
  body.home .hero { min-height: 92vh; }
  .hero-content { text-align: center; }
  .cta-group { justify-content: center; }
  body.home .hero { background-position: center; }
}

@media (max-width: 1024px) {
  .container.flex {
    flex-direction: column;
    align-items: stretch;
  }
  .sidebar {
    margin-left: 0;
    min-width: 0;
    width: 100%;
  }
  body.home .hero { background-position: center; }
}

/* Categories + tags: soften pill frames */
body.tet-page .categories .card,
body.tet-page .tags a {
  background: rgba(12, 6, 6, 0.35);
  border: 1px solid rgba(255, 210, 125, 0.18);
  box-shadow: none;
}

body.tet-page .categories .card a,
body.tet-page .tags a {
  color: #fff7ed;
  font-weight: 600;
}

body.tet-page .categories .card:hover,
body.tet-page .tags a:hover {
  border-color: rgba(255, 210, 125, 0.35);
  background: rgba(18, 8, 8, 0.55);
}

/* Mobile menu: remove header frame + link dividers */
@media (max-width: 1024px) {
  body.tet-page .main-nav {
    background: linear-gradient(180deg, rgba(64, 12, 12, 0.98) 0%, rgba(40, 8, 8, 0.98) 100%);
    border-left: none;
    box-shadow: -16px 0 40px rgba(0, 0, 0, 0.45);
  }
  body.tet-page .main-nav .drawer-header {
    background: transparent !important;
    border-bottom: none !important;
    padding-bottom: 0.4em;
  }
  body.tet-page .main-nav a {
    border-bottom: none !important;
  }
  body.tet-page .drawer-label,
  body.tet-page .drawer-sub {
    color: #fff7ed;
  }
  body.tet-page .drawer-close {
    background: rgba(12, 6, 6, 0.6);
    border: 1px solid rgba(255, 210, 125, 0.2);
    color: #fff7ed;
  }
}

/* Home: leaders timeline with hover profile card */
body.home .leaders-timeline {
  position: relative;
  padding-top: 2rem;
  z-index: 3;
}

body.home .leaders-track {
  position: relative;
  display: grid;
  grid-template-columns: repeat(4, minmax(180px, 1fr));
  gap: 1rem;
  margin-top: 1.4rem;
  padding-bottom: 140px;
}

body.home .leaders-track::before {
  content: "";
  position: absolute;
  top: 54px;
  left: 8%;
  right: 8%;
  height: 2px;
  background: linear-gradient(90deg, rgba(255, 210, 125, 0.25), rgba(255, 210, 125, 0.75), rgba(255, 210, 125, 0.25));
}

body.home .leader-node {
  position: relative;
  z-index: 1;
  display: grid;
  justify-items: center;
  gap: 0.55rem;
  text-align: center;
  padding: 0.25rem 0.4rem 0.6rem;
  outline: none;
}

body.home .leader-period {
  font-size: 0.92rem;
  font-weight: 700;
  color: #ffe4b3;
  letter-spacing: 0.02em;
}

body.home .leader-dot {
  width: 12px;
  height: 12px;
  border-radius: 999px;
  border: 2px solid #ffd27d;
  background: #451111;
  box-shadow: 0 0 0 4px rgba(255, 210, 125, 0.14);
}

body.home .leader-avatar {
  width: 86px;
  height: 86px;
  border-radius: 999px;
  display: grid;
  place-items: center;
  border: 2px solid rgba(255, 210, 125, 0.75);
  font-weight: 700;
  font-size: 1.5rem;
  color: #fff6de;
}

body.home .leader-avatar.placeholder {
  background: radial-gradient(circle at 30% 30%, rgba(251, 191, 36, 0.5), rgba(133, 35, 35, 0.86));
}

body.home .leader-node h3 {
  margin: 0;
  color: #fff7ed;
  font-size: 1rem;
}

body.home .leader-hover-card {
  position: absolute;
  top: calc(100% + 10px);
  left: 50%;
  transform: translateX(-50%) translateY(6px);
  width: min(260px, 75vw);
  padding: 0.7rem 0.85rem;
  border-radius: 12px;
  border: 1px solid rgba(255, 210, 125, 0.28);
  background: rgba(25, 8, 8, 0.92);
  box-shadow: 0 14px 32px rgba(0, 0, 0, 0.35);
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
  transition: transform 0.2s ease, opacity 0.2s ease, visibility 0.2s ease;
}

body.home .leader-hover-card p {
  margin: 0;
  color: rgba(255, 244, 230, 0.9);
  font-size: 0.9rem;
}

body.home .leader-hover-photo {
  width: 92px;
  height: 92px;
  margin: 0 auto 0.55rem;
  border-radius: 12px;
  border: 1px dashed rgba(255, 210, 125, 0.55);
  background: linear-gradient(135deg, rgba(251, 191, 36, 0.18), rgba(123, 32, 32, 0.3));
  color: rgba(255, 244, 230, 0.9);
  font-size: 0.86rem;
  font-weight: 600;
  display: grid;
  place-items: center;
}

body.home .leader-hover-card p + p {
  margin-top: 0.35rem;
}

body.home .leader-node:hover .leader-hover-card,
body.home .leader-node:focus-within .leader-hover-card,
body.home .leader-node:focus .leader-hover-card {
  opacity: 1;
  visibility: visible;
  transform: translateX(-50%) translateY(0);
}

body.home .leader-node:hover .leader-avatar,
body.home .leader-node:focus-within .leader-avatar,
body.home .leader-node:focus .leader-avatar {
  border-color: #ffd27d;
  box-shadow: 0 0 0 6px rgba(255, 210, 125, 0.18);
}

@media (max-width: 980px) {
  body.home .leaders-track {
    grid-template-columns: repeat(2, minmax(150px, 1fr));
    row-gap: 1.2rem;
    padding-bottom: 110px;
  }
  body.home .leaders-track::before {
    display: none;
  }
}

@media (max-width: 560px) {
  body.home .leaders-track {
    grid-template-columns: 1fr;
    padding-bottom: 0;
  }
  body.home .leader-hover-card {
    position: static;
    width: 100%;
    margin-top: 0.35rem;
    opacity: 1;
    visibility: visible;
    transform: none;
    pointer-events: auto;
  }
}

/* Readability fix: avoid washed-out section text on bright Tet background */
html:not(.dark) body.tet-page .section-head h2 {
  color: #5a1f1b !important;
  text-shadow: none !important;
  filter: none !important;
  font-weight: 800;
}

html:not(.dark) body.tet-page .section-head p {
  color: rgba(90, 31, 27, 0.86) !important;
  text-shadow: none !important;
}

html:not(.dark) body.tet-page .section-head h2.swipe-in,
html:not(.dark) body.tet-page .section-head p.swipe-in {
  opacity: 1 !important;
  transform: none !important;
  transition: none !important;
}

/* Readability fix: leaders + sidebar text on bright Tet background */
html:not(.dark) body.home.tet-page .leader-period,
html:not(.dark) body.home.tet-page .leader-node h3 {
  color: #5a1f1b !important;
  text-shadow: none !important;
}

html:not(.dark) body.home.tet-page .leader-node h3.swipe-in {
  opacity: 1 !important;
  transform: none !important;
  transition: none !important;
}

html:not(.dark) body.tet-page .sidebar h3,
html:not(.dark) body.tet-page .sidebar li,
html:not(.dark) body.tet-page .sidebar a,
html:not(.dark) body.tet-page .sidebar b {
  color: #5a1f1b !important;
  text-shadow: none !important;
}

html:not(.dark) body.tet-page .tags a {
  background: rgba(122, 63, 31, 0.14) !important;
  border: 1px solid rgba(122, 63, 31, 0.22) !important;
  color: #5a1f1b !important;
}

/* Home hero: shift to deep blue palette */
body.home .hero {
  background-image:
    linear-gradient(120deg, rgba(7, 16, 40, 0.92), rgba(10, 28, 66, 0.78)),
    url('/images/banner.jpg');
  border-bottom: 1px solid rgba(59, 130, 246, 0.2);
}

body.home .hero::before {
  background:
    radial-gradient(circle at 20% 40%, rgba(59, 130, 246, 0.4), transparent 62%),
    radial-gradient(circle at 80% 30%, rgba(14, 165, 233, 0.28), transparent 60%);
  opacity: 0.85;
}

body.home .hero-badge {
  color: #dbeafe;
  background: rgba(12, 24, 52, 0.6);
  border-color: rgba(59, 130, 246, 0.45);
  box-shadow: 0 10px 26px rgba(15, 23, 42, 0.35);
}

body.home .hero-content {
  background: linear-gradient(140deg, rgba(8, 20, 48, 0.88), rgba(14, 33, 74, 0.82));
  border-color: rgba(59, 130, 246, 0.35);
  box-shadow: 0 18px 38px rgba(2, 6, 23, 0.35), 0 0 0 1px rgba(59, 130, 246, 0.15);
}

body.home .hero h1 {
  color: #f8fafc;
}

body.home .hero h1 .accent { color: #7dd3fc; }

body.home .hero p { color: rgba(226, 232, 240, 0.9); }

body.home .hero-message {
  background: rgba(10, 23, 52, 0.6);
  border-color: rgba(59, 130, 246, 0.4);
  color: #e2e8f0;
  box-shadow: 0 10px 24px rgba(2, 6, 23, 0.35);
}

body.home .cta-group .btn-primary {
  background: linear-gradient(90deg, #2563eb, #0ea5e9);
  box-shadow: 0 14px 30px rgba(37, 99, 235, 0.35);
}

body.home .cta-group .btn-secondary {
  background: rgba(12, 24, 52, 0.7);
  border-color: rgba(59, 130, 246, 0.35);
  color: #e2e8f0;
}

body.home .section-line {
  background: linear-gradient(90deg, #60a5fa, #2563eb);
  box-shadow: 0 6px 18px rgba(37, 99, 235, 0.35);
}

.countdown-label {
  margin-top: 1rem;
  font-weight: 600;
  color: #dbeafe;
  letter-spacing: 0.4px;
  text-transform: uppercase;
  font-size: 0.85rem;
}

.quick-rescue {
  margin-top: 1.2rem;
  padding: 1.1rem 1.2rem;
  background: rgba(8, 20, 48, 0.78);
  border: 1px solid rgba(59, 130, 246, 0.35);
  border-radius: 16px;
  box-shadow: 0 16px 32px rgba(2, 6, 23, 0.3);
}

.quick-head {
  font-weight: 700;
  color: #e2e8f0;
  margin-bottom: 0.8rem;
}

.quick-form {
  display: grid;
  gap: 0.75rem;
}

.quick-form input,
.quick-form textarea {
  width: 100%;
  padding: 0.75rem 0.9rem;
  border-radius: 12px;
  border: 1px solid rgba(148, 163, 184, 0.4);
  background: rgba(15, 23, 42, 0.65);
  color: #e2e8f0;
  font-size: 0.95rem;
}

.quick-form input::placeholder,
.quick-form textarea::placeholder {
  color: rgba(226, 232, 240, 0.65);
}

.quick-form .btn { width: fit-content; }

.latest-news { padding: 2.5rem 0; }

.news-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: clamp(16px, 2.5vw, 28px);
}

.news-card {
  background: rgba(255, 255, 255, 0.82);
  border: 1px solid rgba(59, 130, 246, 0.16);
  box-shadow: 0 16px 32px rgba(15, 23, 42, 0.12);
  border-radius: 18px;
  padding: 1.4rem 1.5rem;
}

.news-card h3 {
  margin: 0.6rem 0 0.5rem;
  color: #0f172a;
}

.news-card p { color: #475569; }

.news-tag {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.25rem 0.7rem;
  border-radius: 999px;
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.6px;
  text-transform: uppercase;
  background: rgba(37, 99, 235, 0.12);
  color: #1e3a8a;
  border: 1px solid rgba(59, 130, 246, 0.25);
}

.news-link {
  display: inline-flex;
  align-items: center;
  gap: 0.3rem;
  margin-top: 0.8rem;
  font-weight: 600;
  color: #2563eb;
}

.news-link:hover { color: #1d4ed8; }

html.dark .news-card {
  background: rgba(15, 23, 42, 0.92);
  border-color: rgba(59, 130, 246, 0.35);
  box-shadow: 0 18px 36px rgba(2, 6, 23, 0.55);
}

html.dark .news-card h3 { color: #f8fafc; }
html.dark .news-card p { color: #cbd5f5; }
html.dark .news-tag {
  background: rgba(59, 130, 246, 0.18);
  color: #dbeafe;
  border-color: rgba(59, 130, 246, 0.4);
}

html.dark .news-link { color: #93c5fd; }
html.dark .news-link:hover { color: #bfdbfe; }

@media (max-width: 900px) {
  .news-grid { grid-template-columns: 1fr; }
}