:root {
  font-family: 'Inter', system-ui, Avenir, Helvetica, Arial, sans-serif;
  line-height: 1.5;
  font-weight: 400;

  --color-primary: #ed2f2f;
  --color-primary-dark: #c82020;
  --color-primary-light: #f05a5a;
  --color-accent: #f2c94c;
  --color-accent-dark: #d7a900;
  --color-success: #1fc56b;
  --color-warning: #f2c94c;
  --color-error: #ed2f2f;
  --color-light: #f7f3e5;
  --color-gray-50: #f4f1e8;
  --color-gray-100: #e7e2d4;
  --color-gray-200: #d0c9b9;
  --color-gray-300: #aaa294;
  --color-gray-500: #6f6b63;
  --color-gray-700: #3f3d39;
  --color-gray-900: #1a1a1a;
  --color-dark: #000000;

  color: var(--color-gray-900);
  background-color: #ffffff;

  font-synthesis: none;
  text-rendering: optimizeLegibility;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  padding: 0;
  min-width: 320px;
  min-height: 100vh;
}

#app {
  max-width: 100%;
  margin: 0;
  padding: 0;
  text-align: left;
}

a {
  font-weight: 500;
  color: var(--color-primary);
  text-decoration: none;
  transition: color 0.2s ease;
}
a:hover { color: var(--color-primary-dark); }

/* ============ TOP BAR ============ */
.topbar {
  background: var(--color-primary);
  color: #fff;
  font-size: 0.8rem;
  padding: 6px 0;
}
.topbar-inner {
  max-width: 1280px;
  margin: 0 auto;
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 0 24px;
  gap: 16px;
  flex-wrap: wrap;
}
.topbar a {
  color: #cfe6f7;
  font-weight: 400;
}
.topbar a:hover { color: #fff; }
.topbar-contact { display: flex; gap: 20px; align-items: center; }
.topbar-contact span { display: flex; align-items: center; gap: 6px; }

.topbar-links { display: flex; gap: 16px; }
.social-links { align-items: center; gap: 8px; }
.social-links a { width: 28px; height: 28px; display: inline-flex; align-items: center; justify-content: center; border-radius: 50%; background: #fff; color: var(--color-primary); font-size: .92rem; font-weight: 800; line-height: 1; transition: transform .2s ease, background .2s ease, color .2s ease; }
.social-links a:hover { background: var(--color-gray-900); color: #fff; transform: translateY(-2px); }
.social-links a[aria-label="LinkedIn"] { font-size: .68rem; letter-spacing: -.3px; }
.social-links a[aria-label="Instagram"] { font-size: 1.15rem; font-weight: 500; }


/* ============ NAV ============ */
.nav {
  position: sticky;
  top: 0;
  z-index: 100;
  background: #000000;
  border-bottom: 1px solid #000000;
  box-shadow: 0 1px 3px rgba(0,0,0,0.2);
  transition: box-shadow 0.3s;
}
.nav.scrolled { box-shadow: 0 2px 12px rgba(0,0,0,0.12); }
.nav-inner {
  max-width: 1280px;
  margin: 0 auto;
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 10px 24px;
}
.nav-logo {
  display: flex;
  align-items: center;
  gap: 20px;
  font-size: 1.15rem;
  font-weight: 700;
  color: #ffffff;
}
.nav-logo .logo-badge {
  width: 44px; height: 44px;
 /* background: var(--color-primary); */
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  font-size: 1.4rem;
  font-weight: 800;
  flex-shrink: 0;
}
.nav-logo .logo-text { display: flex; flex-direction: column; line-height: 1.2; }
.nav-logo .logo-sub { font-size: 0.7rem; font-weight: 500; color: #ffffff; letter-spacing: 0.5px; }
.nav-links { display: flex; gap: 4px; align-items: center; }
.nav-links a {
  padding: 8px 14px;
  border-radius: 6px;
  font-size: 0.88rem;
  font-weight: 500;
  color: #fff0ad;
  transition: all 0.2s;
}
.nav-links a:hover { background: #1b1b1b; color: #ffffff; }
.nav-cta {
  background: var(--color-primary);
  color: #fff !important;
  padding: 8px 18px !important;
  border-radius: 6px;
  font-weight: 600 !important;
}
.nav-cta:hover { background: var(--color-primary-dark); }
.menu-checkbox { position: absolute; opacity: 0; pointer-events: none; }
.menu-toggle { display: none; width: 36px; height: 36px; padding: 8px; cursor: pointer; flex-direction: column; justify-content: center; gap: 5px; }
.menu-toggle span { display: block; height: 2px; width: 20px; background: #fff0ad; transition: transform 0.2s ease, opacity 0.2s ease; }
.menu-checkbox:checked + .menu-toggle span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.menu-checkbox:checked + .menu-toggle span:nth-child(2) { opacity: 0; }
.menu-checkbox:checked + .menu-toggle span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* ============ HERO ============ */
.hero {
  position: relative;
  min-height: 600px;
  display: flex;
  align-items: center;
  overflow: hidden;
  background: #3f4b50;
}
.hero-bg {
  position: absolute;
  inset: 0;
  background-image: url('https://images.pexels.com/photos/9275222/pexels-photo-9275222.jpeg?auto=compress&cs=tinysrgb&w=1600');
  background-size: cover;
  background-position: center;
  opacity: 0.25;
}
.hero-overlay {
  position: absolute;
  inset: 0;
  background: rgba(63,75,80,0.78);
}
.hero-content {
  position: relative;
  z-index: 2;
  max-width: 1280px;
  margin: 0 auto;
  padding: 64px 24px;
  width: 100%;
  color: #fff;
}
.hero-badge {
  display: inline-block;
  background: var(--color-primary);
  color: #fff;
  padding: 6px 16px;
  border-radius: 20px;
  font-size: 0.8rem;
  font-weight: 600;
  margin-bottom: 16px;
  letter-spacing: 0.5px;
}
.hero h1 {
  font-size: clamp(1.8rem, 4vw, 3rem);
  line-height: 1.15;
  font-weight: 800;
  margin: 0 0 12px;
  text-shadow: 0 2px 20px rgba(0,0,0,0.3);
}
.hero-theme {
  font-size: clamp(1rem, 2vw, 1.3rem);
  font-style: italic;
  font-weight: 300;
  color: #fff0ad;
  margin: 0 0 32px;
}
.hero-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 24px;
  margin-bottom: 32px;
}
.hero-meta-item {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  background: rgba(255,255,255,0.1);
  backdrop-filter: blur(8px);
  border: 1px solid rgba(255,255,255,0.15);
  border-radius: 10px;
  padding: 12px 18px;
  font-size: 0.88rem;
}
.hero-meta-item .meta-label {
  font-size: 0.7rem;
  text-transform: uppercase;
  letter-spacing: 1px;
  color: #f2c94c;
  display: block;
  margin-bottom: 2px;
}
.hero-meta-item .meta-value { font-weight: 600; font-size: 0.92rem; }
.hero-actions { display: flex; flex-wrap: wrap; gap: 12px; }

/* ============ BUTTONS ============ */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 12px 28px;
  border-radius: 8px;
  font-size: 0.95rem;
  font-weight: 600;
  border: none;
  cursor: pointer;
  transition: all 0.25s ease;
  text-decoration: none;
  font-family: inherit;
}
.btn-primary { background: var(--color-primary); color: #fff; }
.btn-primary:hover { background: var(--color-primary-dark); color: #fff; transform: translateY(-1px); box-shadow: 0 6px 20px rgba(237,47,47,0.35); }
.btn-outline { background: transparent; color: #fff; border: 2px solid rgba(255,255,255,0.4); }
.btn-outline:hover { background: rgba(255,255,255,0.1); border-color: #fff; color: #fff; }
.btn-blue { background: var(--color-primary); color: #fff; }
.btn-blue:hover { background: var(--color-primary-dark); color: #fff; transform: translateY(-1px); box-shadow: 0 6px 20px rgba(26,111,176,0.35); }

/* ============ SECTIONS ============ */
.section {
  max-width: 1280px;
  margin: 0 auto;
  padding: 64px 24px;
}
.section-wide { max-width: 100%; }
.section-light { background: var(--color-gray-50); }
.section-dark { background: var(--color-dark); color: #fff; }

.section-header {
  text-align: center;
  margin-bottom: 48px;
}
.section-header .section-eyebrow {
  display: inline-block;
  color: var(--color-primary);
  font-size: 0.8rem;
  font-weight: 700;
  letter-spacing: 2px;
  text-transform: uppercase;
  margin-bottom: 8px;
}
.section-header h2 {
  font-size: clamp(1.6rem, 3vw, 2.2rem);
  font-weight: 700;
  margin: 0 0 12px;
  color: var(--color-gray-900);
}
.section-dark .section-header h2 { color: #fff; }
.section-header p {
  max-width: 700px;
  margin: 0 auto;
  color: var(--color-gray-500);
  font-size: 1.02rem;
}
.section-dark .section-header p { color: #a0b4c8; }

/* ============ QUICK LINK CARDS ============ */
.quick-links {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
  margin-top: -48px;
  position: relative;
  z-index: 10;
  padding: 0 24px;
  max-width: 1280px;
  margin-left: auto;
  margin-right: auto;
}
.quick-link-card {
  background: #fff;
  border-radius: 12px;
  padding: 28px 20px;
  text-align: center;
  box-shadow: 0 4px 16px rgba(0,0,0,0.08);
  transition: all 0.3s ease;
  cursor: pointer;
  border: 1px solid var(--color-gray-100);
  text-decoration: none;
}
.quick-link-card:hover {
  transform: translateY(-6px);
  box-shadow: 0 12px 32px rgba(0,0,0,0.12);
  border-color: var(--color-primary-light);
}
.quick-link-card .ql-icon {
  width: 56px; height: 56px;
  margin: 0 auto 16px;
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.6rem;
  background: var(--color-primary);
  color: #fff;
}
.quick-link-card h3 { margin: 0 0 6px; font-size: 1rem; font-weight: 600; color: var(--color-gray-900); }
.quick-link-card p { margin: 0; font-size: 0.82rem; color: var(--color-gray-500); }

/* ============ WELCOME ============ */
.welcome-grid {
  display: grid;
  grid-template-columns: 1.5fr 1fr;
  gap: 48px;
  align-items: center;
}
.welcome-text h2 {
  font-size: clamp(1.5rem, 3vw, 2rem);
  font-weight: 700;
  margin: 0 0 8px;
  color: var(--color-primary-dark);
}
.welcome-text .welcome-sub {
  font-size: 1rem;
  color: var(--color-gray-500);
  margin-bottom: 20px;
  font-style: italic;
}
.welcome-text p {
  font-size: 0.95rem;
  line-height: 1.7;
  color: var(--color-gray-700);
  margin-bottom: 16px;
}
.welcome-message {
  background: var(--color-gray-50);
  border-left: 4px solid var(--color-accent);
  padding: 20px 24px;
  border-radius: 0 8px 8px 0;
  margin: 24px 0;
}
.welcome-message .wm-name {
  font-weight: 700;
  color: var(--color-gray-900);
  font-size: 0.92rem;
}
.welcome-message .wm-affil { font-size: 0.82rem; color: var(--color-gray-500); }
.welcome-image {
  border-radius: 14px;
  overflow: hidden;
  box-shadow: 0 8px 32px rgba(0,0,0,0.15);
  aspect-ratio: 4/5;
}
.welcome-image img { width: 100%; height: 100%; object-fit: cover; }

/* ============ HIGHLIGHTS ============ */
.highlights-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}
.highlight-card {
  background: #fff;
  border-radius: 14px;
  padding: 32px 28px;
  text-align: center;
  box-shadow: 0 2px 12px rgba(0,0,0,0.06);
  transition: all 0.3s;
  border: 1px solid var(--color-gray-100);
}
.highlight-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 8px 28px rgba(0,0,0,0.1);
}
.highlight-card .hl-number {
  font-size: 2.4rem;
  font-weight: 800;
  color: var(--color-primary);
  display: block;
  margin-bottom: 4px;
}
.highlight-card h3 { font-size: 1.05rem; font-weight: 700; margin: 0 0 10px; color: var(--color-gray-900); }
.highlight-card p { font-size: 0.86rem; color: var(--color-gray-500); margin: 0 0 16px; line-height: 1.6; }
.highlight-card .hl-link { font-size: 0.85rem; font-weight: 600; color: var(--color-primary); }

/* ============ SPEAKERS ============ */
.speakers-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
}
.speaker-card {
  background: #fff;
  border-radius: 14px;
  overflow: hidden;
  box-shadow: 0 2px 12px rgba(0,0,0,0.07);
  transition: all 0.3s;
  border: 1px solid var(--color-gray-100);
}
.speaker-card:hover {
  transform: translateY(-6px);
  box-shadow: 0 12px 36px rgba(0,0,0,0.12);
}
.speaker-card .speaker-img {
  width: 100%;
  aspect-ratio: 1;
  object-fit: cover;
  display: block;
}
.speaker-card .speaker-info { padding: 18px 20px; text-align: center; }
.speaker-card h4 { margin: 0 0 4px; font-size: 1rem; font-weight: 700; color: var(--color-gray-900); }
.speaker-card .speaker-affil { font-size: 0.82rem; color: var(--color-gray-500); margin: 0; line-height: 1.4; }
.speaker-card .speaker-role { font-size: 0.75rem; color: var(--color-primary); font-weight: 600; margin: 6px 0 0; }

/* ============ COMMITTEE ============ */
.committee-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
}
.committee-card {
  text-align: center;
  background: #fff;
  border-radius: 12px;
  padding: 20px 16px;
  border: 1px solid var(--color-gray-100);
  transition: all 0.3s;
}
.committee-card:hover { box-shadow: 0 6px 20px rgba(0,0,0,0.08); transform: translateY(-3px); }
.committee-card .cm-img {
  width: 80px; height: 80px;
  border-radius: 50%;
  object-fit: cover;
  margin: 0 auto 12px;
  display: block;
  border: 3px solid var(--color-primary-light);
}
.committee-card h5 { margin: 0 0 2px; font-size: 0.9rem; font-weight: 700; color: var(--color-gray-900); }
.committee-card .cm-role { font-size: 0.76rem; color: var(--color-gray-500); margin: 0; line-height: 1.4; }

/* ============ SCIENTIFIC SESSIONS ============ */
.sessions-list {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 20px;
}
.session-item {
  background: #fff;
  border-radius: 10px;
  padding: 20px 24px;
  border: 1px solid var(--color-gray-100);
  display: flex;
  gap: 16px;
  align-items: flex-start;
  transition: all 0.25s;
}
.session-item:hover {
  border-color: var(--color-primary-light);
  box-shadow: 0 4px 16px rgba(26,111,176,0.1);
}
.session-item .session-num {
  flex-shrink: 0;
  width: 36px; height: 36px;
  border-radius: 8px;
  background: var(--color-primary);
  color: #fff;
  font-weight: 700;
  font-size: 0.82rem;
  display: flex;
  align-items: center;
  justify-content: center;
}
.session-item h4 { margin: 0 0 6px; font-size: 0.95rem; font-weight: 600; color: var(--color-gray-900); }
.session-item p { margin: 0; font-size: 0.84rem; color: var(--color-gray-500); line-height: 1.55; }

/* ============ KEY TOPICS / TAGS ============ */
.topics-cloud {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  justify-content: center;
}
.topic-tag {
  background: #fff;
  border: 1px solid var(--color-gray-200);
  color: var(--color-gray-700);
  padding: 8px 16px;
  border-radius: 20px;
  font-size: 0.85rem;
  font-weight: 500;
  transition: all 0.2s;
  cursor: default;
}
.topic-tag:hover {
  background: var(--color-primary);
  border-color: var(--color-primary);
  color: #fff;
  transform: translateY(-2px);
}

/* ============ WHO CAN ATTEND ============ */
.attend-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
}
.attend-item {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 12px 16px;
  background: #fff;
  border-radius: 8px;
  border: 1px solid var(--color-gray-100);
  font-size: 0.88rem;
  color: var(--color-gray-700);
  transition: all 0.2s;
}
.attend-item:hover { border-color: var(--color-primary-light); background: var(--color-gray-50); }
.attend-item .check-icon { color: var(--color-success); flex-shrink: 0; }

/* ============ SCHEDULE ============ */
.schedule-tabs {
  display: flex;
  gap: 4px;
  margin-bottom: 24px;
  justify-content: center;
}
.schedule-tab {
  padding: 10px 24px;
  border: 2px solid var(--color-gray-200);
  border-radius: 8px;
  font-weight: 600;
  font-size: 0.9rem;
  color: var(--color-gray-700);
  cursor: pointer;
  transition: all 0.25s;
  background: #fff;
}
.schedule-tab.active {
  border-color: var(--color-primary);
  background: var(--color-primary);
  color: #fff;
}
.schedule-list { display: flex; flex-direction: column; gap: 20px; }
.schedule-item {
  display: flex;
  gap: 24px;
  background: #fff;
  border-radius: 12px;
  padding: 24px;
  border: 1px solid var(--color-gray-100);
  transition: all 0.3s;
}
.schedule-item:hover { box-shadow: 0 6px 24px rgba(0,0,0,0.08); }
.schedule-time {
  flex-shrink: 0;
  width: 100px;
  font-weight: 700;
  font-size: 1.1rem;
  color: var(--color-primary);
}
.schedule-speaker-img {
  width: 56px; height: 56px;
  border-radius: 50%;
  object-fit: cover;
  flex-shrink: 0;
}
.schedule-body { flex: 1; }
.schedule-body h4 { margin: 0 0 4px; font-size: 1.05rem; font-weight: 700; color: var(--color-gray-900); }
.schedule-body .sch-speaker { font-size: 0.86rem; font-weight: 600; color: var(--color-primary); margin: 0 0 2px; }
.schedule-body .sch-affil { font-size: 0.82rem; color: var(--color-gray-500); margin: 0 0 8px; }
.schedule-body p { font-size: 0.86rem; color: var(--color-gray-700); line-height: 1.6; margin: 0; }

/* ============ VENUE ============ */
.venue-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 48px;
  align-items: center;
}
.venue-image {
  border-radius: 14px;
  overflow: hidden;
  box-shadow: 0 8px 32px rgba(0,0,0,0.15);
  aspect-ratio: 4/3;
}
.venue-image img { width: 100%; height: 100%; object-fit: cover; display: block; }
.venue-info h2 { font-size: clamp(1.5rem, 3vw, 2rem); font-weight: 700; margin: 0 0 8px; color: var(--color-gray-900); }
.venue-info .venue-sub { font-size: 1.05rem; color: var(--color-primary); font-weight: 600; margin-bottom: 16px; }
.venue-info p { font-size: 0.92rem; color: var(--color-gray-700); line-height: 1.7; margin-bottom: 16px; }
.venue-details { display: flex; flex-direction: column; gap: 12px; margin: 20px 0; }
.venue-detail-item { display: flex; gap: 12px; align-items: flex-start; font-size: 0.9rem; color: var(--color-gray-700); }
.venue-detail-item .vd-icon { color: var(--color-accent); flex-shrink: 0; margin-top: 2px; }

/* ============ SPONSORS ============ */
.sponsors-grid {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
  justify-content: center;
  align-items: center;
}
.sponsor-card {
  background: #fff;
  border: 1px solid var(--color-gray-200);
  border-radius: 10px;
  padding: 16px 28px;
  display: flex;
  align-items: center;
  justify-content: center;
  min-width: 160px;
  height: 70px;
  font-weight: 700;
  font-size: 0.9rem;
  color: var(--color-gray-700);
  transition: all 0.25s;
}
.sponsor-card:hover { border-color: var(--color-primary); box-shadow: 0 4px 16px rgba(0,0,0,0.08); transform: translateY(-3px); }

/* ============ REGISTER CTA ============ */
.register-cta {
  background: linear-gradient(135deg, var(--color-primary-dark) 0%, var(--color-primary) 100%);
  color: #fff;
  text-align: center;
  padding: 64px 24px;
  border-radius: 0;
}
.register-cta h2 {
  font-size: clamp(1.5rem, 3vw, 2.2rem);
  font-weight: 700;
  margin: 0 0 12px;
}
.register-cta p {
  font-size: 1.05rem;
  color: #cfe6f7;
  max-width: 600px;
  margin: 0 auto 28px;
}

/* ============ FOOTER ============ */
.footer {
  background: var(--color-dark);
  color: #a0b4c8;
  padding: 56px 24px 24px;
}
.footer-inner {
  max-width: 1280px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 40px;
}
.footer-brand h3 { color: #fff; font-size: 1.2rem; margin: 0 0 12px; }
.footer-brand p { font-size: 0.86rem; line-height: 1.6; }
.footer-col h4 { color: #fff; font-size: 0.9rem; margin: 0 0 16px; font-weight: 600; }
.footer-col a { display: block; color: #a0b4c8; font-size: 0.85rem; margin-bottom: 8px; text-decoration: none; }
.footer-col a:hover { color: #fff; }
.footer-bottom {
  max-width: 1280px;
  margin: 40px auto 0;
  padding-top: 20px;
  border-top: 1px solid rgba(255,255,255,0.1);
  text-align: center;
  font-size: 0.82rem;
  color: #6e829a;
}

/* ============ RESPONSIVE ============ */
.speaker-tabs { display: flex; justify-content: center; flex-wrap: wrap; gap: 8px; margin: -20px auto 32px; }
.speaker-tab { border: 1px solid var(--color-gray-200); background: #fff; color: var(--color-gray-700); border-radius: 24px; padding: 11px 22px; font: inherit; font-size: .88rem; font-weight: 600; cursor: pointer; transition: all .2s ease; }
.speaker-tab:hover, .speaker-tab.is-active { background: var(--color-primary); border-color: var(--color-primary); color: #fff; box-shadow: 0 5px 14px rgba(237,47,47,.2); }
.speaker-panel { display: none; animation: panel-in .28s ease; }
.speaker-panel.is-active { display: block; }
@keyframes panel-in { from { opacity: 0; transform: translateY(7px); } to { opacity: 1; transform: translateY(0); } }
.speaker-text-card { min-height: 210px; display: flex; align-items: center; justify-content: center; }
.speaker-avatar { display: flex; align-items: center; justify-content: center; width: 72px; height: 72px; border-radius: 50%; margin: 0 auto 14px; background: var(--color-primary); color: #fff; font-weight: 800; letter-spacing: 1px; }
.poster-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.poster-card { background: #fff; border: 1px solid var(--color-gray-100); border-top: 4px solid var(--color-accent); border-radius: 12px; padding: 26px 24px; min-height: 190px; box-shadow: 0 2px 12px rgba(0,0,0,.06); transition: transform .25s ease, box-shadow .25s ease; }
.poster-card:hover { transform: translateY(-4px); box-shadow: 0 10px 26px rgba(0,0,0,.1); }
.poster-card span { color: var(--color-primary); font-size: .75rem; font-weight: 800; letter-spacing: 1.5px; text-transform: uppercase; }
.poster-card h3 { color: var(--color-gray-900); font-size: 1.05rem; line-height: 1.35; margin: 16px 0 8px; }
.poster-card p { color: var(--color-gray-500); font-size: .88rem; margin: 0; }
.testimonials-section { background: #fff; }
.testimonials-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.testimonial-card { background: var(--color-gray-50); border: 1px solid var(--color-gray-100); border-radius: 14px; padding: 28px; margin: 0; position: relative; }
.testimonial-card::before { content: ''; position: absolute; top: 8px; right: 22px; color: var(--color-primary-light); font-size: 4rem; line-height: 1; font-weight: 800; opacity: .45; }
.testimonial-card p { color: var(--color-gray-700); font-size: .96rem; line-height: 1.7; margin: 0 0 22px; position: relative; z-index: 1; }
.testimonial-card footer { display: flex; flex-direction: column; gap: 3px; border-top: 1px solid var(--color-gray-200); padding-top: 16px; }
.testimonial-card footer strong { color: var(--color-gray-900); font-size: .88rem; }
.testimonial-card footer span { color: var(--color-gray-500); font-size: .78rem; }
.gallery-section { background: var(--color-gray-50); }
.gallery-carousel { display: flex; align-items: center; gap: 16px; max-width: 1040px; margin: 0 auto; }
.gallery-track { min-width: 0; flex: 1; }
.gallery-slide { display: none; margin: 0; position: relative; overflow: hidden; border-radius: 16px; box-shadow: 0 10px 30px rgba(0,0,0,.14); }
.gallery-slide.is-active { display: block; animation: panel-in .3s ease; }
.gallery-slide img { display: block; width: 100%; height: min(52vw, 480px); object-fit: cover; }
.gallery-slide figcaption { position: absolute; bottom: 0; left: 0; right: 0; padding: 18px 24px; background: linear-gradient(transparent, rgba(0,0,0,.78)); color: #fff; font-weight: 600; font-size: .95rem; }
.gallery-arrow { width: 44px; height: 44px; flex: 0 0 44px; border: 1px solid var(--color-gray-200); border-radius: 50%; background: #fff; color: var(--color-gray-900); font-size: 1.35rem; line-height: 1; cursor: pointer; transition: all .2s ease; }
.gallery-arrow:hover { background: var(--color-primary); border-color: var(--color-primary); color: #fff; transform: scale(1.06); }
.gallery-dots { display: flex; justify-content: center; gap: 8px; margin-top: 18px; }
.gallery-dot { width: 8px; height: 8px; border: 0; border-radius: 50%; padding: 0; background: var(--color-gray-300); cursor: pointer; }
.gallery-dot.is-active { background: var(--color-primary); transform: scale(1.35); }

@media (max-width: 900px) {
  .quick-links { grid-template-columns: repeat(2, 1fr); }
  .highlights-grid { grid-template-columns: 1fr; }
  .speakers-grid { grid-template-columns: repeat(2, 1fr); }
  .poster-grid, .testimonials-grid { grid-template-columns: 1fr; }
  .committee-grid { grid-template-columns: repeat(2, 1fr); }
  .sessions-list { grid-template-columns: 1fr; }
  .attend-grid { grid-template-columns: repeat(2, 1fr); }
  .welcome-grid { grid-template-columns: 1fr; }
  .venue-grid { grid-template-columns: 1fr; }
  .footer-inner { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 640px) {
  .nav-inner { position: relative; }
  .menu-toggle { display: flex; }
  .nav-links {
    display: none;
    flex-direction: column;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: #000000;
    border-bottom: 1px solid #2a2a2a;
    padding: 12px 24px 16px;
    box-shadow: 0 4px 16px rgba(0,0,0,0.25);
  }
  .menu-checkbox:checked + .menu-toggle + .nav-links { display: flex; }
  .nav-links a { width: 100%; }
  .nav-links .nav-cta { text-align: center; margin-top: 4px; }
  .quick-links { grid-template-columns: 1fr; margin-top: -32px; }
  .speakers-grid { grid-template-columns: 1fr; }
  .gallery-carousel { gap: 8px; }
  .gallery-arrow { width: 36px; height: 36px; flex-basis: 36px; font-size: 1.1rem; }
  .gallery-slide img { height: 62vw; min-height: 220px; }
  .gallery-slide figcaption { padding: 14px 16px; font-size: .82rem; }
  .committee-grid { grid-template-columns: 1fr; }
  .attend-grid { grid-template-columns: 1fr; }
  .hero-meta { flex-direction: column; }
  .hero-meta-item { width: 100%; }
  .footer-inner { grid-template-columns: 1fr; }
  .schedule-item { flex-direction: column; gap: 12px; }
  .schedule-time { width: auto; }
  .topbar-contact { font-size: 0.72rem; gap: 10px; }
  .topbar-links { display: none; }
  .section { padding: 40px 16px; }
  .speaker-tabs { margin-bottom: 24px; }
  .speaker-tab { flex: 1 1 auto; padding: 10px 13px; font-size: .8rem; }
}

/* ============ INNER PAGES ============ */
.inner-page { background: #f8f7f4; }
.page-header { background: #000; position: sticky; top: 0; z-index: 100; box-shadow: 0 2px 12px rgba(0,0,0,.16); }
.page-header-inner { max-width: 1280px; margin: 0 auto; padding: 10px 24px; display: flex; align-items: center; justify-content: space-between; }
.inner-hero { min-height: 260px; display: flex; align-items: center; justify-content: center; text-align: center; color: #fff; position: relative; overflow: hidden; background: linear-gradient(120deg, rgba(20,25,30,.94), rgba(53,62,67,.84)), url('https://images.pexels.com/photos/9275222/pexels-photo-9275222.jpeg?auto=compress&cs=tinysrgb&w=1600') center/cover; }
.inner-hero-content { padding: 48px 24px; position: relative; z-index: 1; }
.inner-hero h1 { font-size: clamp(2rem, 5vw, 3.2rem); line-height: 1.15; margin: 14px 0 10px; }
.inner-hero p { margin: 0; color: #fff0ad; font-size: 1.05rem; }
.breadcrumb { display: flex; justify-content: center; gap: 10px; margin-top: 20px; color: rgba(255,255,255,.8); font-size: .88rem; }
.breadcrumb a { color: #fff0ad; }
.inner-section { max-width: 1280px; margin: 0 auto; padding: 64px 24px; }
.guide-layout, .abstract-layout, .registration-layout { display: grid; gap: 48px; align-items: start; }
.guide-layout { grid-template-columns: .85fr 1.15fr; }
.abstract-layout { grid-template-columns: 1.12fr .88fr; }
.guide-copy { padding: 30px 0; }
.guide-copy h2, .topic-panel h2, .page-form h2 { font-size: clamp(1.65rem, 3vw, 2.2rem); line-height: 1.2; margin: 8px 0 16px; color: var(--color-gray-900); }
.guide-copy p, .topic-panel p { color: var(--color-gray-700); line-height: 1.75; }
.guide-points { display: grid; grid-template-columns: repeat(3, 1fr); gap: 12px; margin-top: 32px; }
.guide-points div { border-left: 3px solid var(--color-primary); padding-left: 12px; }
.guide-points strong { display: block; color: var(--color-primary); font-size: 1.7rem; }
.guide-points span { color: var(--color-gray-500); font-size: .78rem; }
.page-form { background: #fff; border: 1px solid var(--color-gray-100); border-radius: 14px; padding: 32px; box-shadow: 0 12px 32px rgba(0,0,0,.08); }
.page-form h3 { text-transform: uppercase; letter-spacing: .4px; margin: 0 0 8px; font-size: 1.3rem; color: var(--color-primary); }
.form-intro { color: var(--color-gray-500); margin: 0 0 24px; font-size: .9rem; }
.form-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 16px; }
.form-grid label { display: flex; flex-direction: column; gap: 7px; color: var(--color-gray-700); font-size: .8rem; font-weight: 600; }
.form-grid input, .form-grid select, .form-grid textarea { width: 100%; padding: 12px 14px; border: 1px solid var(--color-gray-200); border-radius: 8px; background: #fff; color: var(--color-gray-900); font: inherit; font-size: .9rem; outline: none; transition: border-color .2s, box-shadow .2s; }
.form-grid textarea { resize: vertical; min-height: 96px; }
.form-grid input:focus, .form-grid select:focus, .form-grid textarea:focus { border-color: var(--color-primary); box-shadow: 0 0 0 3px rgba(237,47,47,.12); }
.full-width { grid-column: 1 / -1; }
.form-submit { margin-top: 24px; min-width: 190px; }
.form-submit:disabled { cursor: default; opacity: .72; transform: none; }
.form-status { min-height: 22px; margin: 16px 0 0; font-size: .88rem; }
.form-status.is-success { color: #147344; font-weight: 600; }
.topic-panel { padding: 30px 8px; }
.topic-panel ul { list-style: none; padding: 20px 0 0; margin: 0; border-top: 1px solid var(--color-gray-200); }
.topic-panel li { position: relative; padding: 9px 0 9px 22px; color: var(--color-gray-700); }
.topic-panel li::before { content: ''; width: 7px; height: 7px; border-radius: 50%; background: var(--color-primary); position: absolute; left: 0; top: 18px; }
.registration-layout { grid-template-columns: 1fr; }
.pricing-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 22px; }
.pricing-card { background: #1a1a1a; border-radius: 14px; overflow: hidden; color: #fff; box-shadow: 0 10px 24px rgba(0,0,0,.12); position: relative; }
.pricing-card-head { padding: 20px 24px 18px; background: var(--color-primary); display: flex; align-items: center; justify-content: space-between; min-height: 92px; }
.pricing-card-head h3 { margin: 0; font-size: 1.2rem; }
.pricing-card-head strong { font-size: 2.2rem; line-height: 1; }
.pricing-card-head small { font-size: 1rem; vertical-align: top; }
.pricing-card ul { list-style: none; margin: 0; padding: 18px 24px 8px; }
.pricing-card li { padding: 13px 0 13px 22px; border-bottom: 1px solid rgba(255,255,255,.12); color: #f4f1e8; position: relative; font-size: .9rem; }
.pricing-card li::before { content: '?'; position: absolute; left: 0; color: var(--color-accent); font-weight: 800; }
.pricing-card .btn { margin: 20px 24px 24px; width: calc(100% - 48px); }
.pricing-card.featured { transform: translateY(-8px); border: 2px solid var(--color-primary); }
.popular-label { position: absolute; top: 10px; right: 16px; text-transform: uppercase; font-size: .62rem; letter-spacing: 1px; background: #fff0ad; color: #1a1a1a; padding: 4px 8px; border-radius: 20px; font-weight: 700; }
.registration-form { max-width: 900px; margin: 8px auto 0; }
.consent { display: flex; align-items: flex-start; gap: 10px; color: var(--color-gray-700); font-size: .82rem; margin-top: 20px; }
.consent input { margin-top: 3px; accent-color: var(--color-primary); }
.upload-field small { color: var(--color-gray-500); font-weight: 400; }

@media (max-width: 900px) {
  .guide-layout, .abstract-layout { grid-template-columns: 1fr; gap: 24px; }
  .guide-copy, .topic-panel { padding: 0; }
  .pricing-grid { grid-template-columns: 1fr; max-width: 520px; margin: 0 auto; }
  .pricing-card.featured { transform: none; }
}
@media (max-width: 640px) {
  .page-header-inner { position: relative; padding: 10px 16px; }
  .page-header .nav-links { position: absolute; top: 100%; left: 0; right: 0; padding: 12px 16px 16px; }
  .inner-hero { min-height: 230px; }
  .inner-section { padding: 40px 16px; }
  .page-form { padding: 22px 16px; border-radius: 10px; }
  .form-grid { grid-template-columns: 1fr; gap: 14px; }
  .full-width { grid-column: auto; }
  .guide-points { gap: 8px; }
  .guide-points strong { font-size: 1.35rem; }
  .guide-points span { font-size: .7rem; }
  .page-form .form-submit { width: 100%; }
}


/* ============ NEWSLETTER ============ */
.newsletter-section { background: #161616; color: #fff; padding: 64px 24px; }
.newsletter-inner { max-width: 1120px; margin: 0 auto; display: grid; grid-template-columns: .75fr 1.25fr; gap: 56px; align-items: center; }
.newsletter-copy .section-eyebrow { color: var(--color-accent); }
.newsletter-copy h2 { color: #fff; font-size: clamp(1.7rem, 3vw, 2.4rem); line-height: 1.2; margin: 8px 0 14px; }
.newsletter-copy p { color: #d8d4ca; line-height: 1.7; margin: 0; max-width: 390px; }
.newsletter-form { background: #fff; border-radius: 14px; padding: 28px; color: var(--color-gray-900); }
.newsletter-fields { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 14px; }
.newsletter-fields label { display: flex; flex-direction: column; gap: 7px; color: var(--color-gray-700); font-size: .8rem; font-weight: 600; }
.newsletter-fields input, .newsletter-fields textarea { width: 100%; border: 1px solid var(--color-gray-200); border-radius: 8px; padding: 12px 14px; font: inherit; font-size: .9rem; color: var(--color-gray-900); outline: none; }
.newsletter-fields textarea { resize: vertical; min-height: 80px; }
.newsletter-fields input:focus, .newsletter-fields textarea:focus { border-color: var(--color-primary); box-shadow: 0 0 0 3px rgba(237,47,47,.12); }
.newsletter-message { grid-column: 1 / -1; }
.newsletter-form .form-submit { margin-top: 20px; }
.form-status.is-error { color: var(--color-error); font-weight: 600; }
@media (max-width: 900px) { .newsletter-inner { grid-template-columns: 1fr; gap: 28px; } .newsletter-copy p { max-width: 620px; } }
@media (max-width: 640px) { .newsletter-section { padding: 48px 16px; } .newsletter-form { padding: 22px 16px; } .newsletter-fields { grid-template-columns: 1fr; } .newsletter-message { grid-column: auto; } .newsletter-form .form-submit { width: 100%; } }