/* ============================================================
   UNTAG Conference — Landing Page v3
   Clean Academic Modern | #faef15 Accent
   ============================================================ */

@import url("https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700;800;900&display=swap");

/* ---------- Reset ---------- */
*,
*::before,
*::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}
html {
  scroll-behavior: smooth;
  font-size: 16px;
}
body {
  font-family: "Inter", sans-serif;
  background: #fff;
  color: #1a1a2e;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}
img {
  display: block;
  max-width: 100%;
  height: auto;
}
a {
  text-decoration: none;
  color: inherit;
}
ul,
ol {
  list-style: none;
}
::selection {
  background: #faef15;
  color: #111;
}
::-webkit-scrollbar {
  width: 4px;
}
::-webkit-scrollbar-thumb {
  background: #ccc;
  border-radius: 4px;
}

/* ---------- Design Tokens ---------- */
:root {
  --yellow: #faef15;
  --yellow-d: #d4c900;
  --dark: #0d0d1a;
  --dark-2: #181828;
  --text: #1a1a2e;
  --sub: #64687a;
  --border: #e8e9f0;
  --surface: #f7f8fc;
  --white: #ffffff;
  --red: #ef4444;
  --radius: 10px;
  --radius-lg: 18px;
  --nav-h: 68px;
  --max-w: 1160px;
  --ease: cubic-bezier(0.4, 0, 0.2, 1);
}

/* ---------- Layout ---------- */
.container {
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 0 28px;
}

/* ============================================================
   NAVBAR — simple, robust, no absolute children in flow
   ============================================================ */
#site-nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: var(--nav-h);
  background: rgba(255, 255, 255, 0.97);
  border-bottom: 1px solid transparent;
  z-index: 9999;
  transition: border-color 0.3s var(--ease);
}
#site-nav.scrolled {
  border-bottom-color: var(--border);
}

.nav-inner {
  display: flex;
  align-items: center;
  height: var(--nav-h);
  gap: 32px;
}

.nav-brand {
  font-size: 1rem;
  font-weight: 800;
  color: var(--dark);
  letter-spacing: -0.02em;
  flex-shrink: 0;
  display: flex;
  align-items: center;
  gap: 8px;
}
.nav-brand img {
  height: 28px;
  width: auto;
  object-fit: contain;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 2px;
  flex: 1;
  justify-content: center;
}
.nav-links a {
  font-size: 0.82rem;
  font-weight: 500;
  color: var(--sub);
  padding: 6px 12px;
  border-radius: 8px;
  transition:
    color 0.2s,
    background 0.2s;
  white-space: nowrap;
}
.nav-links a:hover {
  color: var(--text);
  background: var(--surface);
}

/* Archive dropdown */
.nav-drop {
  position: relative;
}
.nav-drop-btn {
  display: flex;
  align-items: center;
  gap: 4px;
  font-size: 0.82rem;
  font-weight: 500;
  color: var(--sub);
  padding: 6px 12px;
  border-radius: 8px;
  background: none;
  border: none;
  cursor: pointer;
  font-family: inherit;
  transition:
    color 0.2s,
    background 0.2s;
}
.nav-drop-btn:hover {
  color: var(--text);
  background: var(--surface);
}
.nav-drop-btn svg {
  width: 12px;
  height: 12px;
  transition: transform 0.2s;
}
.nav-drop-btn.active svg {
  transform: rotate(180deg);
}
.nav-drop-menu {
  position: absolute;
  top: calc(100% + 8px);
  left: 50%;
  transform: translateX(-50%);
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: 0 12px 40px rgba(0, 0, 0, 0.1);
  min-width: 175px;
  padding: 6px;
  opacity: 0;
  visibility: hidden;
  transition:
    opacity 0.15s,
    visibility 0.15s;
  z-index: 99999;
}
.nav-drop-menu.open {
  opacity: 1;
  visibility: visible;
}
.nav-drop-menu a {
  display: block;
  padding: 9px 12px;
  font-size: 0.82rem;
  color: var(--sub);
  border-radius: 6px;
  transition:
    background 0.15s,
    color 0.15s;
}
.nav-drop-menu a:hover {
  background: var(--surface);
  color: var(--text);
}

.nav-submit {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 9px 22px;
  background: var(--yellow);
  color: var(--dark);
  font-size: 0.82rem;
  font-weight: 700;
  border-radius: 50px;
  flex-shrink: 0;
  transition:
    background 0.2s,
    transform 0.2s;
}
.nav-submit:hover {
  background: var(--yellow-d);
  transform: translateY(-1px);
}
.nav-submit svg {
  width: 13px;
  height: 13px;
}

/* Hamburger */
.nav-burger {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 4px;
  flex-shrink: 0;
  margin-left: auto;
}
.nav-burger span {
  display: block;
  width: 22px;
  height: 2px;
  background: var(--dark);
  border-radius: 2px;
  transition:
    transform 0.25s var(--ease),
    opacity 0.25s;
}

/* Mobile drawer — OUTSIDE nav element in HTML */
#mobile-drawer {
  display: none;
  position: fixed;
  top: var(--nav-h);
  left: 0;
  right: 0;
  background: var(--white);
  border-bottom: 1px solid var(--border);
  box-shadow: 0 10px 40px rgba(0, 0, 0, 0.08);
  padding: 12px 28px 24px;
  z-index: 9998;
}
#mobile-drawer.open {
  display: block;
}
#mobile-drawer a {
  display: block;
  padding: 12px 0;
  font-size: 0.95rem;
  font-weight: 500;
  color: var(--sub);
  border-bottom: 1px solid var(--border);
  transition: color 0.15s;
}
#mobile-drawer a:last-of-type {
  border-bottom: none;
}
#mobile-drawer a:hover {
  color: var(--text);
}
#mobile-drawer .mob-cta {
  display: flex;
  justify-content: center;
  margin-top: 16px;
  background: var(--yellow);
  color: var(--dark);
  padding: 13px;
  border-radius: 10px;
  font-weight: 700;
  font-size: 0.9rem;
  border-bottom: none;
}
#mobile-drawer .mob-cta:hover {
  background: var(--yellow-d);
}

/* ============================================================
   HERO
   ============================================================ */
.hero {
  position: relative;
  min-height: 100vh;
  background: var(--dark);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  overflow: hidden;
  padding: var(--nav-h) 0 0;
}

.hero-bg {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: 100;
}

.hero-overlay {
  position: absolute;
  inset: 0;
  background:
    radial-gradient(
      ellipse at center top,
      rgba(250, 239, 21, 0.08) 0%,
      transparent 15%
    ),
    linear-gradient(
      to bottom,
      rgba(13, 13, 26, 0.3) 0%,
      rgba(13, 13, 26, 0.85) 100%
    );
}

.hero-body {
  position: relative;
  z-index: 2;
  padding: 80px 28px 0;
  max-width: 860px;
  margin: 0 auto;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: rgba(250, 239, 21, 0.1);
  border: 1px solid rgba(250, 239, 21, 0.25);
  color: var(--yellow);
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  padding: 6px 16px;
  border-radius: 50px;
  margin-bottom: 28px;
}
.hero-badge-dot {
  width: 6px;
  height: 6px;
  background: var(--yellow);
  border-radius: 50%;
  animation: pulse 2s ease-in-out infinite;
}
@keyframes pulse {
  0%,
  100% {
    opacity: 1;
    transform: scale(1);
  }
  50% {
    opacity: 0.4;
    transform: scale(0.8);
  }
}

.hero-title {
  font-size: clamp(3rem, 8vw, 6rem);
  font-weight: 900;
  color: var(--white);
  letter-spacing: -0.05em;
  line-height: 0.95;
  margin-bottom: 24px;
}
.hero-title .accent {
  color: var(--yellow);
}

.hero-sub {
  font-size: clamp(0.95rem, 2vw, 1.1rem);
  color: rgba(255, 255, 255, 0.55);
  line-height: 1.7;
  max-width: 600px;
  margin: 0 auto 36px;
}

.hero-meta {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 20px;
  margin-bottom: 40px;
  flex-wrap: wrap;
}
.hero-meta-item {
  display: flex;
  align-items: center;
  gap: 7px;
  font-size: 0.82rem;
  font-weight: 500;
  color: rgba(255, 255, 255, 0.5);
}
.hero-meta-item svg {
  width: 14px;
  height: 14px;
  color: var(--yellow);
  flex-shrink: 0;
}
.hero-meta-sep {
  width: 1px;
  height: 14px;
  background: rgba(255, 255, 255, 0.15);
}

.hero-actions {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 12px;
  flex-wrap: wrap;
  margin-bottom: 64px;
}

.btn-primary {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  padding: 13px 32px;
  background: var(--yellow);
  color: var(--dark);
  font-size: 0.9rem;
  font-weight: 700;
  border-radius: 50px;
  transition:
    background 0.2s,
    transform 0.2s;
}
.btn-primary:hover {
  background: var(--yellow-d);
  transform: translateY(-2px);
}
.btn-primary svg {
  width: 15px;
  height: 15px;
}

.btn-outline {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  padding: 13px 32px;
  background: transparent;
  color: rgba(255, 255, 255, 0.75);
  font-size: 0.9rem;
  font-weight: 600;
  border-radius: 50px;
  border: 1px solid rgba(255, 255, 255, 0.2);
  transition:
    border-color 0.2s,
    color 0.2s;
}
.btn-outline:hover {
  border-color: rgba(255, 255, 255, 0.45);
  color: #fff;
}

/* Countdown strip */
.hero-countdown {
  position: relative;
  z-index: 2;
  width: 100%;
  background: rgba(255, 255, 255, 0.04);
  border-top: 1px solid rgba(255, 255, 255, 0.07);
  margin-top: auto;
}
.countdown-inner {
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 0 28px;
  display: grid;
  grid-template-columns: repeat(4, 1fr);
}
.cd-cell {
  padding: 28px 0;
  text-align: center;
  border-right: 1px solid rgba(255, 255, 255, 0.07);
  position: relative;
}
.cd-cell:last-child {
  border-right: none;
}
.cd-cell::after {
  content: "";
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  height: 2px;
  background: var(--yellow);
  transform: scaleX(0);
  transition: transform 0.3s var(--ease);
}
.cd-cell:hover::after {
  transform: scaleX(1);
}
.cd-num {
  display: block;
  font-size: clamp(2rem, 4vw, 3.2rem);
  font-weight: 900;
  color: #fff;
  letter-spacing: -0.04em;
  line-height: 1;
  margin-bottom: 6px;
  font-variant-numeric: tabular-nums;
}
.cd-lbl {
  display: block;
  font-size: 0.62rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: rgba(255, 255, 255, 0.3);
}

/* ============================================================
   SECTION SYSTEM
   ============================================================ */
.section {
  padding: 96px 0;
}
.section-sm {
  padding: 72px 0;
}
.section-dark {
  background: var(--dark-2);
}
.section-gray {
  background: var(--surface);
}
.section-yellow {
  background: var(--yellow);
}

.section-head {
  margin-bottom: 52px;
}
.section-head.center {
  text-align: center;
}
.section-head.center .section-desc {
  margin-left: auto;
  margin-right: auto;
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 0.68rem;
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--yellow-d);
  margin-bottom: 10px;
}
.eyebrow::before {
  content: "";
  display: inline-block;
  width: 18px;
  height: 2px;
  background: var(--yellow);
  border-radius: 2px;
  flex-shrink: 0;
}
.eyebrow-white {
  color: rgba(255, 255, 255, 0.5);
}
.eyebrow-white::before {
  background: rgba(250, 239, 21, 0.4);
}

.section-title {
  font-size: clamp(1.85rem, 3.5vw, 2.6rem);
  font-weight: 800;
  color: var(--text);
  letter-spacing: -0.03em;
  line-height: 1.15;
  margin-bottom: 14px;
}
.section-title-white {
  color: #fff;
}

.section-desc {
  font-size: 0.97rem;
  color: var(--sub);
  line-height: 1.75;
  max-width: 540px;
}
.section-desc-white {
  color: rgba(255, 255, 255, 0.5);
}

/* ============================================================
   HTML CONTENT RENDER
   ============================================================ */
.hcr {
  font-size: 0.95rem;
  color: var(--sub);
  line-height: 1.75;
}
.hcr p {
  margin-bottom: 1em;
}
.hcr p:last-child {
  margin-bottom: 0;
}
.hcr h3,
.hcr h4 {
  font-size: 1rem;
  font-weight: 700;
  color: var(--text);
  margin: 1.3em 0 0.5em;
  letter-spacing: -0.01em;
}
.hcr h3 {
  font-size: 1.05rem;
}
.hcr ul,
.hcr ol {
  padding-left: 1.3em;
  margin-bottom: 1em;
}
.hcr li {
  margin-bottom: 0.35em;
}
.hcr a {
  color: var(--yellow-d);
  text-decoration: underline;
  text-underline-offset: 3px;
}
.hcr strong {
  color: var(--text);
  font-weight: 600;
}
.hcr table {
  width: 100%;
  border-collapse: collapse;
  margin: 20px 0;
  font-size: 0.88rem;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
}
.hcr table th {
  background: var(--dark);
  color: var(--yellow);
  padding: 12px 18px;
  text-align: left;
  font-size: 0.7rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}
.hcr table td {
  padding: 12px 18px;
  border-bottom: 1px solid var(--border);
  color: var(--sub);
  line-height: 1.5;
}
.hcr table td:first-child {
  font-weight: 500;
  color: var(--text);
}
.hcr table tr:last-child td {
  border-bottom: none;
}
.hcr table tr:nth-child(even) td {
  background: var(--surface);
}

/* ============================================================
   ABOUT
   ============================================================ */
.about-staggered {
  display: flex;
  flex-direction: column;
  gap: 48px;
  align-items: center;
}
@media(min-width: 900px) {
  .about-staggered {
    flex-direction: row;
    gap: 80px;
    align-items: center;
  }
}
.about-staggered-text {
  flex: 1;
}
.about-hcr {
  font-size: 1.1rem;
  line-height: 1.8;
  color: var(--sub);
}
.about-decorative-line {
  width: 60px;
  height: 4px;
  background: var(--yellow);
  margin-top: 32px;
  border-radius: 2px;
}
.about-staggered-visual {
  flex: 1;
  width: 100%;
  position: relative;
  padding: 20px 20px 20px 0;
}
.about-visual-shape {
  position: absolute;
  top: 0; 
  right: 0;
  width: 80%;
  height: 85%;
  background: var(--dark);
  border-radius: var(--radius-lg);
  z-index: 0;
}
.about-visual-shape::after {
  content: '';
  position: absolute;
  bottom: -24px; left: -24px;
  width: 120px; height: 120px;
  background-image: radial-gradient(var(--yellow) 2px, transparent 2px);
  background-size: 16px 16px;
  z-index: -1;
}
.about-visual-img {
  position: relative;
  z-index: 1;
  width: 90%;
  margin-top: 40px;
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: 0 20px 50px rgba(0,0,0,0.15);
  background: var(--surface);
}
.about-visual-img img {
  width: 100%;
  display: block;
  aspect-ratio: 4/3;
  object-fit: cover;
}
.about-img-ph {
  width: 100%;
  aspect-ratio: 4/3;
  display: flex;
  align-items: center;
  justify-content: center;
  color: #ccc;
}
.about-img-ph svg { width: 64px; height: 64px; }

/* ============================================================
   CALL FOR PAPER
   ============================================================ */
.no-show-alert {
  display: flex;
  gap: 14px;
  background: #fef2f2;
  border: 1px solid #fecaca;
  border-left: 4px solid var(--red);
  border-radius: var(--radius);
  padding: 18px 22px;
  margin-bottom: 28px;
}
.no-show-alert svg {
  width: 18px;
  height: 18px;
  color: var(--red);
  flex-shrink: 0;
  margin-top: 2px;
}
.no-show-alert-title {
  font-size: 0.85rem;
  font-weight: 700;
  color: #991b1b;
  margin-bottom: 6px;
}
.no-show-alert .hcr p {
  color: #7f1d1d;
  font-size: 0.85rem;
}
.cfp-modern-card {
  display: grid;
  grid-template-columns: 1fr;
  gap: 32px;
  background: var(--dark);
  color: var(--white);
  border-radius: var(--radius-lg);
  padding: 48px;
  position: relative;
  overflow: hidden;
  box-shadow: 0 20px 50px rgba(0,0,0,0.15);
  margin: 0 auto 48px;
  max-width: 1060px;
}
@media(min-width: 900px) {
  .cfp-modern-card {
    grid-template-columns: 1.3fr 1fr;
    gap: 48px;
    align-items: center;
    padding: 64px;
  }
}
.cfp-modern-card::before {
  content: '';
  position: absolute;
  top: -50%; left: -50%; width: 200%; height: 200%;
  background: radial-gradient(circle at center, rgba(250,239,21,0.12) 0%, transparent 50%);
  pointer-events: none;
}
.cfp-modern-left { position: relative; z-index: 1; }
.cfp-modern-left .eyebrow { color: var(--yellow); margin-bottom: 16px; font-size: 0.75rem; }
.cfp-modern-left h2 {
  font-size: clamp(2rem, 4vw, 3.2rem);
  font-weight: 900;
  line-height: 1.1;
  margin-bottom: 24px;
  letter-spacing: -0.03em;
  color: #fff;
}
.cfp-modern-left p.cfp-desc {
  color: rgba(255,255,255,0.7);
  font-size: 1.1rem;
  line-height: 1.7;
}
.cfp-theme-box {
  background: rgba(255,255,255,0.06);
  border-left: 4px solid var(--yellow);
  padding: 24px 28px;
  margin-top: 32px;
  border-radius: 0 12px 12px 0;
}
.cfp-theme-box-text {
  font-size: 1.25rem;
  font-weight: 700;
  color: #fff;
  line-height: 1.5;
}
.cfp-modern-right {
  position: relative;
  z-index: 1;
  background: rgba(255,255,255,0.04);
  border: 1px solid rgba(255,255,255,0.1);
  padding: 32px;
  border-radius: var(--radius-lg);
  backdrop-filter: blur(10px);
}
.cfp-modern-right .no-show-alert-title {
  color: #fca5a5;
  text-transform: uppercase;
  font-size: 0.9rem;
  font-weight: 800;
  margin-bottom: 16px;
  display: flex;
  align-items: center;
  gap: 8px;
}
.cfp-modern-right .hcr p {
  color: rgba(255,255,255,0.65);
  font-size: 0.95rem;
}
.cfp-modern-right .hcr strong { color: rgba(255,255,255,0.9); }
.topics-card {
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  overflow: hidden;
}
.topics-card-head {
  display: flex;
  align-items: center;
  gap: 10px;
  background: var(--dark);
  padding: 16px 32px;
}
.topics-card-head svg {
  width: 16px;
  height: 16px;
  color: var(--yellow);
}
.topics-card-head span {
  font-size: 0.78rem;
  font-weight: 700;
  color: var(--yellow);
  letter-spacing: 0.08em;
  text-transform: uppercase;
}
.topics-card-body { padding: 56px 48px; }

/* ============================================================
   GUIDELINES
   ============================================================ */
.guide-card {
  max-width: 800px;
  margin: 0 auto 28px;
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 40px;
}
.dl-group {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
  justify-content: center;
}
.dl-btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 12px 26px;
  border-radius: 50px;
  font-size: 0.85rem;
  font-weight: 700;
  transition:
    background 0.2s,
    transform 0.2s;
}
.dl-btn svg {
  width: 15px;
  height: 15px;
}
.dl-yellow {
  background: var(--yellow);
  color: var(--dark);
}
.dl-yellow:hover {
  background: var(--yellow-d);
  transform: translateY(-1px);
}
.dl-dark {
  background: var(--dark);
  color: #fff;
}
.dl-dark:hover {
  background: #222;
  transform: translateY(-1px);
}

/* ============================================================
   IMPORTANT DATES
   ============================================================ */
.dates-grid {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 1px;
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid rgba(255, 255, 255, 0.06);
  border-radius: var(--radius-lg);
  overflow: hidden;
}
.date-item {
  background: rgba(255, 255, 255, 0.025);
  padding: 32px 24px;
  transition: background 0.2s;
  border-top: 2px solid transparent;
}
.date-item:hover {
  background: rgba(255, 255, 255, 0.06);
  border-top-color: var(--yellow);
}
.date-icon {
  width: 36px;
  height: 36px;
  background: rgba(250, 239, 21, 0.1);
  border-radius: 9px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 18px;
}
.date-icon svg {
  width: 16px;
  height: 16px;
  color: var(--yellow);
}
.date-label {
  font-size: 0.65rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--yellow);
  margin-bottom: 7px;
}
.date-value {
  font-size: 0.92rem;
  font-weight: 600;
  color: #fff;
  line-height: 1.45;
}

/* ============================================================
   SPEAKERS
   ============================================================ */
.speakers-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(175px, 220px));
  gap: 24px;
  justify-content: center;
}
.speaker-card {
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  text-align: center;
  transition:
    transform 0.25s,
    box-shadow 0.25s;
}
.speaker-card:hover {
  transform: translateY(-5px);
  box-shadow: 0 16px 40px rgba(0, 0, 0, 0.1);
}
.speaker-photo {
  aspect-ratio: 1;
  overflow: hidden;
  background: var(--surface);
}
.speaker-photo img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}
.speaker-photo-ph {
  width: 100%;
  aspect-ratio: 1;
  background: var(--surface);
  display: flex;
  align-items: center;
  justify-content: center;
  color: #ddd;
}
.speaker-photo-ph svg {
  width: 40px;
  height: 40px;
}
.speaker-info {
  padding: 18px 14px 20px;
}
.speaker-name {
  font-size: 0.9rem;
  font-weight: 700;
  color: var(--text);
  margin-bottom: 4px;
}
.speaker-title {
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--yellow-d);
}

/* ============================================================
   COMMITTEE
   ============================================================ */
.committee-card {
  max-width: 840px;
  margin: 0 auto;
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 44px;
}

/* ============================================================
   PDF EXPRESS
   ============================================================ */
.pdf-center {
  max-width: 720px;
  margin: 0 auto;
  text-align: center;
}
.pdf-center .eyebrow {
  justify-content: center;
}
.pdf-center .hcr p {
  color: rgba(255, 255, 255, 0.5);
}
.pdf-center .hcr a {
  color: var(--yellow);
}
.pdf-center .hcr ol,
.pdf-center .hcr ul {
  text-align: left;
  color: rgba(255, 255, 255, 0.5);
}

/* ============================================================
   REGISTRATION & PAYMENT
   ============================================================ */
.reg-stack {
  max-width: 720px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 18px;
}
.reg-card {
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  border-top: 3px solid var(--yellow);
  padding: 36px 40px;
}
.reg-card-title {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 1rem;
  font-weight: 700;
  color: var(--text);
  margin-bottom: 22px;
}
.reg-card-title svg {
  width: 18px;
  height: 18px;
  color: var(--yellow-d);
  flex-shrink: 0;
}
.btn-confirm {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  width: 100%;
  margin-top: 22px;
  padding: 14px;
  background: var(--dark);
  color: #fff;
  font-weight: 700;
  font-size: 0.9rem;
  border-radius: var(--radius);
  transition:
    background 0.2s,
    transform 0.2s;
}
.btn-confirm:hover {
  background: #222;
  transform: translateY(-1px);
}
.btn-confirm svg {
  width: 14px;
  height: 14px;
}

/* ============================================================
   SPONSORS
   ============================================================ */
.sponsor-card {
  max-width: 880px;
  margin: 0 auto;
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 44px;
  text-align: center;
}

/* ============================================================
   CONTACT / GET IN TOUCH
   ============================================================ */
.contact-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 24px;
  max-width: 1000px;
  margin: 0 auto;
}
.contact-card {
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 48px 32px;
  text-align: center;
  box-shadow: 0 10px 30px rgba(0,0,0,0.04);
  transition: transform 0.25s, box-shadow 0.25s;
}
.contact-card:hover {
  transform: translateY(-5px);
  box-shadow: 0 15px 40px rgba(0,0,0,0.08);
}
.contact-card-icon {
  width: 64px; height: 64px;
  background: rgba(250,239,21,0.15);
  color: var(--yellow-d);
  border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
  margin: 0 auto 24px;
}
.contact-card-icon svg { width: 28px; height: 28px; }
.contact-card h4 {
  font-size: 1.1rem;
  font-weight: 800;
  color: var(--text);
  margin-bottom: 12px;
}
.contact-card p {
  color: var(--sub);
  font-size: 0.95rem;
  line-height: 1.6;
}

/* ============================================================
   FOOTER — minimal, admin-managed
   ============================================================ */
.site-footer {
  background: var(--dark);
  padding: 56px 0 36px;
  border-top: 3px solid var(--yellow);
}
.footer-inner {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 20px;
  text-align: center;
}
.footer-content {
  max-width: 680px;
  width: 100%;
}
.footer-content .hcr p,
.footer-content .hcr li {
  color: rgba(255, 255, 255, 0.38);
  font-size: 0.88rem;
}
.footer-content .hcr a {
  color: var(--yellow);
}
.footer-content .hcr h3,
.footer-content .hcr h4 {
  color: rgba(255, 255, 255, 0.6);
  font-size: 0.9rem;
}
.footer-content .hcr table th {
  background: rgba(255, 255, 255, 0.05);
  color: var(--yellow);
}
.footer-content .hcr table td {
  color: rgba(255, 255, 255, 0.35);
  border-color: rgba(255, 255, 255, 0.06);
}
.footer-content .hcr table tr:nth-child(even) td {
  background: rgba(255, 255, 255, 0.02);
}
.footer-divider {
  width: 48px;
  height: 1px;
  background: rgba(255, 255, 255, 0.1);
}
.footer-copy {
  font-size: 0.75rem;
  color: rgba(255, 255, 255, 0.2);
}

/* ============================================================
   SCROLL REVEAL
   ============================================================ */
[data-reveal] {
  opacity: 0;
  transform: translateY(20px);
  transition:
    opacity 0.55s var(--ease),
    transform 0.55s var(--ease);
}
[data-reveal="left"] {
  transform: translateX(-24px);
}
[data-reveal="right"] {
  transform: translateX(24px);
}
[data-reveal="scale"] {
  transform: scale(0.95);
}
[data-reveal].visible {
  opacity: 1;
  transform: none;
}
[data-delay="1"] {
  transition-delay: 0.08s;
}
[data-delay="2"] {
  transition-delay: 0.16s;
}
[data-delay="3"] {
  transition-delay: 0.24s;
}
[data-delay="4"] {
  transition-delay: 0.32s;
}
[data-delay="5"] {
  transition-delay: 0.4s;
}

/* ============================================================
   RESPONSIVE
   ============================================================ */
@media (max-width: 1060px) {
  .about-grid {
    grid-template-columns: 1fr;
    gap: 40px;
  }
  .about-img-box {
    max-width: 500px;
    margin: 0 auto;
  }
  .dates-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

@media (max-width: 900px) {
  .nav-links,
  .nav-submit {
    display: none;
  }
  .nav-burger {
    display: flex;
  }
}

@media (max-width: 768px) {
  :root {
    --nav-h: 60px;
  }
  .section {
    padding: 68px 0;
  }
  .dates-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .hero-title {
    letter-spacing: -0.03em;
  }
  .topics-card-body,
  .guide-card,
  .committee-card,
  .reg-card,
  .sponsor-card {
    padding: 24px;
  }
  .reg-card {
    padding: 24px 22px;
  }
}

@media (max-width: 520px) {
  .container {
    padding: 0 18px;
  }
  .dates-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .countdown-inner {
    grid-template-columns: repeat(2, 1fr);
  }
  .cd-cell:nth-child(2) {
    border-right: none;
  }
  .cd-cell:nth-child(3) {
    border-top: 1px solid rgba(255, 255, 255, 0.07);
  }
  .hero-actions {
    flex-direction: column;
    width: 100%;
  }
  .btn-primary,
  .btn-outline {
    width: 100%;
    justify-content: center;
  }
}