/* ============================================================
   34th WiN Global Annual Conference 2027 — Dushanbe, Tajikistan
   css/style.css — Nuclear / Technology palette
   ============================================================ */

/* ── 1. CSS Variables ── */
:root {
  --deep:    #071b3e;
  --primary: #1565c0;
  --accent:  #00b4d8;
  --ink:     #0d2438;
  --muted:   #7a90b0;
  --bg-alt:  #eef4fb;
  --radius:  18px;
  --shadow:  0 8px 40px rgba(7, 27, 62, 0.12);
  --grad:    linear-gradient(135deg, var(--primary), var(--accent));
}

/* ── 2. Base ── */
*, *::before, *::after { box-sizing: border-box; }

html {
  scroll-behavior: smooth;
  scroll-padding-top: 75px;
}

body {
  font-family: 'Inter', sans-serif;
  color: var(--ink);
  background: #fff;
  overflow-x: hidden;
}

h1, h2, h3, h4, h5, h6 {
  font-family: 'Sora', sans-serif;
  font-weight: 800;
}

/* ── 3. Utility ── */
.fw-600 { font-weight: 600 !important; }

.grad-text {
  background: var(--grad);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.eyebrow {
  display: flex;
  align-items: center;
  gap: .6rem;
  font-size: .75rem;
  font-weight: 700;
  letter-spacing: .12em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 1rem;
}

.eyebrow::before {
  content: '';
  display: inline-block;
  width: 2rem;
  height: 2px;
  background: var(--accent);
  flex-shrink: 0;
}

/* ── 4. Reveal animations ── */
.reveal {
  opacity: 0;
  transform: translateY(28px);
  transition: opacity .65s ease, transform .65s ease;
}

.reveal.in {
  opacity: 1;
  transform: none;
}

@media (prefers-reduced-motion: reduce) {
  .reveal { opacity: 1; transform: none; transition: none; }
}

/* ============================================================
   NAVBAR
   ============================================================ */
#mainNav {
  background: #071b3e;
  box-shadow: 0 2px 24px rgba(7,27,62,.28);
  transition: box-shadow .35s, padding .35s;
  padding: .75rem 0;
}

#mainNav.scrolled {
  background: #071b3e !important;
  box-shadow: 0 4px 32px rgba(7,27,62,.45) !important;
  padding: .5rem 0;
}

/* Brand-color accent line at bottom of navbar */
#mainNav::after {
  content: '';
  position: absolute;
  bottom: 0; left: 0; right: 0;
  height: 2.5px;
  background: linear-gradient(to right, #00A99D 0%, #F7941D 55%, #C1272D 100%);
  opacity: .75;
  pointer-events: none;
}

/* Logo — no badge needed on white bg */
.navbar-logo-wrap {
  display: inline-flex;
  align-items: center;
  line-height: 0;
  transition: opacity .22s, transform .22s;
}

.navbar-brand:hover .navbar-logo-wrap {
  opacity: .82;
  transform: translateY(-1px);
}

.navbar-logo-img {
  height: 62px;
  width: auto;
  display: block;
}

@media (max-width:991px) {
  .navbar-logo-img { height: 54px; }
}
@media (max-width:575px) {
  .navbar-logo-img { height: 44px; }
}

.brand-icon {
  width: 42px;
  height: 42px;
  border-radius: 10px;
  background: var(--grad);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.25rem;
  color: #fff;
  flex-shrink: 0;
}

.brand-text .line1 {
  font-family: 'Sora', sans-serif;
  font-weight: 800;
  font-size: 1rem;
  color: #fff;
  display: block;
  line-height: 1.1;
}

.brand-text .line2 {
  font-size: .75rem;
  color: rgba(255,255,255,.75);
  font-weight: 500;
  display: block;
  white-space: nowrap;
}

.navbar-nav .nav-link {
  color: rgba(255,255,255,.88) !important;
  font-weight: 500;
  font-size: .88rem;
  padding: .38rem .9rem !important;
  border-radius: 8px;
  transition: color .2s, background .2s;
}

.navbar-nav .nav-link:hover {
  color: #fff !important;
  background: rgba(255,255,255,.10);
}

.navbar-nav .nav-link.active {
  color: #fff !important;
  background: rgba(255,255,255,.13);
  font-weight: 600;
}

.btn-register {
  background: var(--primary) !important;
  color: #fff !important;
  border-radius: 50px !important;
  padding: .42rem 1.4rem !important;
  font-weight: 600 !important;
  font-size: .87rem !important;
  transition: background .22s, transform .22s, box-shadow .22s !important;
  box-shadow: 0 3px 12px rgba(21,101,192,.28) !important;
}

.btn-register:hover {
  background: var(--deep) !important;
  transform: translateY(-1px);
  box-shadow: 0 5px 18px rgba(7,27,62,.32) !important;
  color: #fff !important;
}

/* ── Dropdown menus (sub-pages) ── */
.dropdown-menu-dark {
  background: rgba(7, 27, 62, .97) !important;
  border: 1px solid rgba(255,255,255,.12) !important;
  border-radius: 12px !important;
  padding: .5rem !important;
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  box-shadow: 0 12px 40px rgba(0,0,0,.35) !important;
  min-width: 220px;
}

.dropdown-menu-dark .dropdown-item {
  border-radius: 8px;
  font-size: .87rem;
  padding: .5rem .9rem;
  color: rgba(255,255,255,.78) !important;
  transition: background .2s, color .2s, padding-left .2s;
}

.dropdown-menu-dark .dropdown-item:hover,
.dropdown-menu-dark .dropdown-item:focus {
  background: rgba(255,255,255,.1) !important;
  color: var(--accent) !important;
  padding-left: 1.2rem;
}

.dropdown-menu-dark .dropdown-item.active {
  background: rgba(0,180,216,.15) !important;
  color: var(--accent) !important;
}

/* ============================================================
   HERO
   ============================================================ */
#hero {
  min-height: 100vh;
  background: var(--deep);
  background-image:
    radial-gradient(ellipse at 18% 55%, rgba(21, 101, 192, .38) 0%, transparent 60%),
    radial-gradient(ellipse at 80% 20%, rgba(0, 180, 216, .22) 0%, transparent 55%),
    radial-gradient(ellipse at 60% 80%, rgba(7, 27, 62, .8) 0%, transparent 50%);
  position: relative;
  display: flex;
  align-items: center;
  overflow: hidden;
  padding-top: 80px;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: .5rem;
  background: rgba(255,255,255,.1);
  border: 1px solid rgba(255,255,255,.2);
  backdrop-filter: blur(6px);
  -webkit-backdrop-filter: blur(6px);
  border-radius: 50px;
  padding: .42rem 1.2rem;
  font-size: .78rem;
  font-weight: 600;
  color: rgba(255,255,255,.9);
  letter-spacing: .05em;
  margin-bottom: 1.5rem;
}

.hero-badge .dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--accent);
  animation: pulse-dot 2s infinite;
  flex-shrink: 0;
}

@keyframes pulse-dot {
  0%, 100% { opacity: 1; transform: scale(1); }
  50%       { opacity: .4; transform: scale(.65); }
}

.hero-title {
  font-size: clamp(2rem, 5vw, 4.2rem);
  font-weight: 800;
  color: #fff;
  line-height: 1.1;
  margin-bottom: .6rem;
}

.hero-slogan {
  font-size: clamp(1rem, 2.5vw, 1.55rem);
  font-weight: 700;
  margin-bottom: 1rem;
}

.hero-sub {
  color: rgba(255,255,255,.68);
  font-size: .95rem;
  max-width: 520px;
  margin-bottom: 2rem;
  line-height: 1.75;
}

.hero-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 1.5rem;
  margin-bottom: 2.2rem;
}

.hero-meta-item {
  display: flex;
  align-items: flex-start;
  gap: .55rem;
  color: rgba(255,255,255,.8);
  font-size: .87rem;
}

.hero-meta-item > i {
  color: var(--accent);
  font-size: 1.1rem;
  margin-top: .1rem;
  flex-shrink: 0;
}

.hero-meta-item .label {
  font-size: .7rem;
  color: rgba(255,255,255,.5);
  display: block;
  line-height: 1.2;
}

.hero-meta-item .value {
  font-weight: 600;
  color: #fff;
  display: block;
}

.btn-hero-primary {
  display: inline-block;
  background: #fff;
  color: var(--primary) !important;
  text-decoration: none;
  border-radius: 50px;
  padding: .82rem 2rem;
  font-weight: 700;
  font-size: .95rem;
  transition: transform .2s, box-shadow .2s;
}

.btn-hero-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 10px 28px rgba(255,255,255,.22);
  color: var(--primary) !important;
}

.btn-hero-outline {
  display: inline-block;
  background: transparent;
  color: #fff !important;
  text-decoration: none;
  border: 2px solid rgba(255,255,255,.38);
  border-radius: 50px;
  padding: .78rem 2rem;
  font-weight: 600;
  font-size: .95rem;
  transition: border-color .2s, background .2s;
}

.btn-hero-outline:hover {
  border-color: rgba(255,255,255,.75);
  background: rgba(255,255,255,.08);
  color: #fff !important;
}

/* Glassmorphism countdown card */
.countdown-card {
  background: rgba(255,255,255,.08);
  border: 1px solid rgba(255,255,255,.14);
  backdrop-filter: blur(18px);
  -webkit-backdrop-filter: blur(18px);
  border-radius: var(--radius);
  padding: 2.2rem 1.8rem;
  color: #fff;
}

.countdown-card > h5 {
  font-size: .8rem;
  font-weight: 700;
  letter-spacing: .12em;
  text-transform: uppercase;
  color: rgba(255,255,255,.55);
  margin-bottom: 1.6rem;
  text-align: center;
}

.countdown-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: .55rem;
  margin-bottom: 1.6rem;
}

.countdown-cell {
  text-align: center;
  background: rgba(255,255,255,.07);
  border-radius: 12px;
  padding: .95rem .3rem;
}

.countdown-cell .num {
  font-family: 'Sora', sans-serif;
  font-size: clamp(1.6rem, 3.5vw, 2.3rem);
  font-weight: 800;
  color: var(--accent);
  line-height: 1;
  display: block;
}

.countdown-cell .lbl {
  font-size: .6rem;
  color: rgba(255,255,255,.55);
  text-transform: uppercase;
  letter-spacing: .1em;
  margin-top: .35rem;
  display: block;
}

.countdown-ended {
  text-align: center;
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--accent);
  padding: 1rem 0 1.5rem;
}

.btn-countdown {
  display: block;
  text-align: center;
  background: var(--grad);
  color: #fff !important;
  text-decoration: none;
  border-radius: 10px;
  padding: .72rem;
  font-weight: 700;
  font-size: .88rem;
  letter-spacing: .04em;
  transition: opacity .2s;
}

.btn-countdown:hover { opacity: .85; color: #fff !important; }

/* SVG waves */
.hero-waves {
  position: absolute;
  bottom: -1px;
  left: 0;
  width: 100%;
  height: 80px;
  pointer-events: none;
}

/* ============================================================
   STATS BAND
   ============================================================ */
#stats {
  background: var(--grad);
  padding: 2.8rem 0;
}

.stat-item { text-align: center; }

.stat-num {
  font-family: 'Sora', sans-serif;
  font-size: clamp(2rem, 4vw, 2.9rem);
  font-weight: 800;
  color: #fff;
  line-height: 1;
}

.stat-label {
  font-size: .78rem;
  color: rgba(255,255,255,.72);
  text-transform: uppercase;
  letter-spacing: .1em;
  margin-top: .35rem;
}

/* ============================================================
   ABOUT
   ============================================================ */
#about { padding: 5.5rem 0; }

.check-list { list-style: none; padding: 0; margin: 0 0 1.5rem; }

.check-list li {
  display: flex;
  align-items: flex-start;
  gap: .75rem;
  margin-bottom: .7rem;
  font-size: .93rem;
  line-height: 1.65;
  color: var(--ink);
}

.check-list li i {
  color: var(--accent);
  font-size: 1.1rem;
  margin-top: .15rem;
  flex-shrink: 0;
}

.btn-main {
  display: inline-block;
  background: var(--grad);
  color: #fff !important;
  text-decoration: none;
  border-radius: 50px;
  padding: .75rem 1.9rem;
  font-weight: 700;
  font-size: .92rem;
  transition: opacity .2s, transform .2s;
}

.btn-main:hover {
  opacity: .88;
  transform: translateY(-2px);
  color: #fff !important;
}

.feature-card {
  border-radius: var(--radius);
  padding: 1.6rem;
  color: #fff;
  height: 100%;
  transition: transform .3s, box-shadow .3s;
}

.feature-card:hover {
  transform: translateY(-6px);
  box-shadow: 0 20px 50px rgba(7, 27, 62, .22);
}

.feature-card h5 { font-size: 1.05rem; margin-bottom: .5rem; }
.feature-card p  { font-size: .86rem; opacity: .85; margin: 0; line-height: 1.65; }
.feature-card i  { font-size: 1.8rem; margin-bottom: .8rem; }

.fc-1 { background: linear-gradient(135deg, #1565c0, #0d47a1); }
.fc-2 { background: linear-gradient(135deg, #0288d1, #00b4d8); }
.fc-3 { background: linear-gradient(135deg, #00838f, #0097a7); }

/* ============================================================
   THEMES
   ============================================================ */
#themes {
  background: var(--bg-alt);
  padding: 5.5rem 0;
}

.section-lead {
  color: var(--muted);
  max-width: 560px;
  margin: 0 auto;
  font-size: .94rem;
  line-height: 1.7;
}

.theme-card {
  background: #fff;
  border-radius: var(--radius);
  padding: 1.9rem;
  box-shadow: var(--shadow);
  transition: transform .3s, box-shadow .3s;
  height: 100%;
}

.theme-card:hover {
  transform: translateY(-6px);
  box-shadow: 0 18px 55px rgba(7, 27, 62, .18);
}

.theme-icon {
  width: 54px;
  height: 54px;
  border-radius: 13px;
  background: var(--bg-alt);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.55rem;
  color: var(--primary);
  margin-bottom: 1.1rem;
  transition: background .3s, color .3s;
}

.theme-card:hover .theme-icon {
  background: var(--grad);
  color: #fff;
}

.theme-card h5 {
  font-size: .98rem;
  margin-bottom: .45rem;
  color: var(--ink);
  line-height: 1.35;
}

.theme-card p {
  font-size: .84rem;
  color: var(--muted);
  margin: 0;
  line-height: 1.65;
}

.theme-card-cta {
  border-radius: var(--radius) !important;
  height: 100%;
}

/* ============================================================
   PROGRAM
   ============================================================ */
#program { padding: 5.5rem 0; }

.timeline {
  position: relative;
  padding-left: 2.4rem;
}

.timeline::before {
  content: '';
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  width: 3px;
  background: var(--grad);
  border-radius: 2px;
}

.timeline-item {
  position: relative;
  margin-bottom: 2.4rem;
}

.timeline-item:last-child { margin-bottom: 0; }

.timeline-item::before {
  content: '';
  position: absolute;
  left: -2.8rem;
  top: .25rem;
  width: 18px;
  height: 18px;
  border-radius: 50%;
  background: var(--grad);
  border: 3px solid #fff;
  box-shadow: 0 0 0 3px var(--primary);
}

.timeline-day {
  font-size: .74rem;
  font-weight: 700;
  letter-spacing: .1em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: .5rem;
}

.timeline-card {
  background: #fff;
  border-radius: var(--radius);
  padding: 1.5rem 1.7rem;
  box-shadow: var(--shadow);
  border-left: 4px solid var(--primary);
}

.timeline-card h5 {
  font-size: .98rem;
  color: var(--ink);
  margin-bottom: .4rem;
}

.timeline-card p {
  font-size: .84rem;
  color: var(--muted);
  margin-bottom: .8rem;
  line-height: 1.65;
}

.tag-pill {
  display: inline-block;
  background: var(--bg-alt);
  color: var(--primary);
  border-radius: 50px;
  padding: .18rem .72rem;
  font-size: .7rem;
  font-weight: 600;
  margin: .18rem .12rem 0 0;
  letter-spacing: .03em;
}

/* ============================================================
   SPEAKERS
   ============================================================ */
#speakers {
  background: var(--bg-alt);
  padding: 5.5rem 0;
}

.speaker-card {
  background: #fff;
  border-radius: var(--radius);
  padding: 2rem 1.5rem;
  text-align: center;
  box-shadow: var(--shadow);
  transition: transform .3s, box-shadow .3s;
  height: 100%;
}

.speaker-card:hover {
  transform: translateY(-6px);
  box-shadow: 0 18px 55px rgba(7, 27, 62, .18);
}

.speaker-avatar {
  width: 92px;
  height: 92px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: 'Sora', sans-serif;
  font-size: 1.4rem;
  font-weight: 800;
  color: #fff;
  margin: 0 auto 1.1rem;
}

.speaker-card h5 {
  font-size: .98rem;
  color: var(--ink);
  margin-bottom: .25rem;
}

.speaker-role {
  font-size: .8rem;
  color: var(--muted);
  margin-bottom: .9rem;
  line-height: 1.4;
}

.speaker-social a {
  color: var(--muted);
  font-size: 1.1rem;
  margin: 0 .28rem;
  text-decoration: none;
  transition: color .2s;
}

.speaker-social a:hover { color: var(--primary); }

/* ============================================================
   VENUE
   ============================================================ */
#venue { padding: 5.5rem 0; }

.venue-feature {
  display: flex;
  align-items: flex-start;
  gap: .85rem;
  margin-bottom: 1.1rem;
}

.venue-feature i {
  color: var(--accent);
  font-size: 1.2rem;
  margin-top: .1rem;
  flex-shrink: 0;
}

.venue-feature p {
  margin: 0;
  font-size: .9rem;
  color: var(--ink);
  line-height: 1.65;
}

.venue-map-wrap {
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: var(--shadow);
}

.venue-map-wrap iframe {
  width: 100%;
  height: 420px;
  border: 0;
  display: block;
}

/* ============================================================
   REGISTER / CTA
   ============================================================ */
#register {
  background: var(--deep);
  background-image:
    radial-gradient(ellipse at 8% 65%, rgba(21, 101, 192, .38) 0%, transparent 55%),
    radial-gradient(ellipse at 92% 30%, rgba(0, 180, 216, .18) 0%, transparent 55%);
  padding: 5.5rem 0;
}

.benefit-list { list-style: none; padding: 0; }

.benefit-list li {
  display: flex;
  align-items: flex-start;
  gap: .75rem;
  color: rgba(255,255,255,.78);
  font-size: .9rem;
  margin-bottom: .75rem;
  line-height: 1.65;
}

.benefit-list li i {
  color: var(--accent);
  font-size: 1.1rem;
  margin-top: .1rem;
  flex-shrink: 0;
}

.reg-card {
  background: #fff;
  border-radius: var(--radius);
  padding: 2.4rem 2.2rem;
  box-shadow: 0 24px 70px rgba(0,0,0,.32);
}

.reg-card h4 {
  font-size: 1.3rem;
  color: var(--ink);
  margin-bottom: 1.6rem;
}

.reg-card .form-control,
.reg-card .form-select {
  border-radius: 10px;
  border: 1.5px solid #d6e0ef;
  font-size: .9rem;
  padding: .6rem .9rem;
  transition: border-color .2s, box-shadow .2s;
}

.reg-card .form-control:focus,
.reg-card .form-select:focus {
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(21,101,192,.12);
}

.btn-submit {
  background: var(--grad);
  color: #fff;
  border: none;
  border-radius: 10px;
  padding: .78rem;
  font-weight: 700;
  font-size: .98rem;
  width: 100%;
  cursor: pointer;
  transition: opacity .2s, transform .2s;
}

.btn-submit:hover {
  opacity: .88;
  transform: translateY(-1px);
}

.success-msg {
  display: none;
  background: #e8f5e9;
  color: #2e7d32;
  border-radius: 10px;
  padding: 1rem 1.2rem;
  font-weight: 600;
  font-size: .88rem;
  margin-top: 1rem;
  text-align: center;
  border: 1px solid #a5d6a7;
}

/* ============================================================
   PARTNERS
   ============================================================ */
#partners {
  padding: 3.5rem 0;
  border-top: 1px solid rgba(0,0,0,.06);
  border-bottom: 1px solid rgba(0,0,0,.06);
}

.partner-logo {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: .6rem;
  padding: .85rem 1.6rem;
  border-radius: 12px;
  background: var(--bg-alt);
  font-weight: 700;
  font-size: .88rem;
  color: var(--ink);
  text-decoration: none;
  transition: background .2s, transform .2s, box-shadow .2s;
}

.partner-logo:hover {
  background: #d6e8f8;
  transform: translateY(-3px);
  box-shadow: var(--shadow);
  color: var(--ink);
}

.partner-logo i {
  font-size: 1.35rem;
  color: var(--primary);
}

/* ============================================================
   FOOTER
   ============================================================ */
#footer {
  background: var(--deep);
  padding: 4.5rem 0 0;
  color: rgba(255,255,255,.68);
}

.footer-brand p {
  font-size: .85rem;
  line-height: 1.75;
  margin-bottom: 1.1rem;
}

.footer-social a {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  border-radius: 8px;
  background: rgba(255,255,255,.08);
  color: rgba(255,255,255,.68);
  font-size: 1rem;
  margin-right: .45rem;
  text-decoration: none;
  transition: background .2s, color .2s;
}

.footer-social a:hover {
  background: var(--accent);
  color: #fff;
}

.footer-col h6 {
  font-size: .75rem;
  font-weight: 700;
  letter-spacing: .13em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 1.1rem;
}

.footer-col ul { list-style: none; padding: 0; margin: 0; }
.footer-col ul li { margin-bottom: .48rem; }
.footer-col ul li a {
  color: rgba(255,255,255,.62);
  text-decoration: none;
  font-size: .86rem;
  transition: color .2s;
}

.footer-col ul li a:hover { color: var(--accent); }

.footer-contact-item {
  display: flex;
  align-items: flex-start;
  gap: .6rem;
  font-size: .83rem;
  margin-bottom: .65rem;
  line-height: 1.55;
}

.footer-contact-item i {
  color: var(--accent);
  margin-top: .2rem;
  flex-shrink: 0;
}

.footer-contact-item a {
  color: rgba(255,255,255,.62);
  text-decoration: none;
  transition: color .2s;
}

.footer-contact-item a:hover { color: var(--accent); }

.footer-bottom {
  border-top: 1px solid rgba(255,255,255,.07);
  margin-top: 3rem;
  padding: 1.4rem 0;
  font-size: .78rem;
  color: rgba(255,255,255,.4);
}

/* ============================================================
   BACK-TO-TOP
   ============================================================ */
#backToTop {
  position: fixed;
  right: 1.5rem;
  bottom: 1.5rem;
  width: 46px;
  height: 46px;
  border-radius: 50%;
  background: var(--grad);
  color: #fff;
  border: none;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.2rem;
  box-shadow: 0 4px 18px rgba(0,0,0,.28);
  cursor: pointer;
  opacity: 0;
  pointer-events: none;
  transition: opacity .3s, transform .3s;
  z-index: 999;
}

#backToTop.visible {
  opacity: 1;
  pointer-events: auto;
}

#backToTop:hover { transform: translateY(-3px); }

/* ============================================================
   SUB-PAGE: BANNER
   ============================================================ */
.page-banner {
  background: var(--deep);
  background-image:
    radial-gradient(ellipse at 20% 50%, rgba(21,101,192,.35) 0%, transparent 60%),
    radial-gradient(ellipse at 80% 20%, rgba(0,180,216,.22) 0%, transparent 55%);
  padding: 7.5rem 0 3rem;
  position: relative;
  overflow: hidden;
}

.page-banner::after {
  content: '';
  position: absolute;
  bottom: 0; left: 0;
  width: 100%; height: 4px;
  background: var(--grad);
}

.page-banner h1 {
  color: #fff;
  font-size: clamp(1.7rem, 4vw, 2.8rem);
  line-height: 1.15;
  margin-bottom: .6rem;
}

.breadcrumb {
  background: none;
  padding: 0;
  margin: 0;
}

.breadcrumb-item + .breadcrumb-item::before {
  color: rgba(255,255,255,.35);
  content: "/";
}

.breadcrumb-item { font-size: .8rem; }

.breadcrumb-item a {
  color: rgba(255,255,255,.55);
  text-decoration: none;
  transition: color .2s;
}

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

.breadcrumb-item.active { color: var(--accent); }

/* ── Sub-page layout ── */
.page-content { padding: 3.5rem 0 5rem; }

/* ── Side navigation ── */
.side-nav {
  background: #fff;
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  overflow: hidden;
  position: sticky;
  top: 82px;
  margin-bottom: 1.5rem;
}

.side-nav-title {
  background: var(--grad);
  color: #fff;
  padding: .85rem 1.2rem;
  font-family: 'Sora', sans-serif;
  font-weight: 700;
  font-size: .76rem;
  letter-spacing: .09em;
  text-transform: uppercase;
}

.side-nav ul { list-style: none; padding: .4rem 0; margin: 0; }

.side-nav ul li a {
  display: block;
  padding: .58rem 1.2rem;
  color: var(--ink);
  text-decoration: none;
  font-size: .86rem;
  border-left: 3px solid transparent;
  transition: color .2s, background .2s, padding-left .2s, border-color .2s;
}

.side-nav ul li a:hover {
  color: var(--primary);
  background: var(--bg-alt);
  padding-left: 1.5rem;
}

.side-nav ul li a.active {
  color: var(--primary);
  background: var(--bg-alt);
  border-left-color: var(--primary);
  font-weight: 600;
  padding-left: 1.5rem;
}

/* ── Content typography ── */
.content-section h2 {
  font-family: 'Sora', sans-serif;
  font-size: clamp(1.6rem, 3vw, 2.2rem);
  font-weight: 700;
  color: var(--deep);
  margin-bottom: 1.2rem;
  padding-bottom: .7rem;
  border-bottom: 2px solid var(--bg-alt);
}

.content-section h3 {
  font-size: 1.1rem;
  color: var(--primary);
  margin: 2rem 0 .8rem;
  font-weight: 700;
}

.content-section p {
  color: var(--ink);
  line-height: 1.9;
  margin-bottom: 1rem;
  font-size: 1rem;
}

.content-section ul, .content-section ol {
  color: var(--ink);
  line-height: 1.85;
  font-size: 1rem;
  padding-left: 1.5rem;
  margin-bottom: 1rem;
}

.content-section ul li, .content-section ol li { margin-bottom: .45rem; }

/* ── Info cards ── */
.info-card {
  background: #fff;
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 1.8rem 2rem;
  margin-bottom: 1.4rem;
}

.info-card h3 {
  font-size: 1rem;
  color: var(--primary);
  margin: 0 0 1rem;
  padding-bottom: .6rem;
  border-bottom: 2px solid var(--bg-alt);
}

.info-card p, .info-card li {
  font-size: .89rem;
  color: var(--muted);
  line-height: 1.8;
}

/* ── Overview grid ── */
.overview-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 1.1rem;
  margin: 2rem 0;
}

.overview-item {
  background: #fff;
  border: 1.5px solid #dde8f5;
  border-radius: var(--radius);
  padding: 1.4rem 1.5rem;
  display: flex;
  align-items: center;
  gap: 1rem;
  transition: box-shadow .25s, transform .25s;
}

.overview-item:hover {
  box-shadow: var(--shadow);
  transform: translateY(-3px);
}

.ov-icon {
  width: 50px; height: 50px;
  border-radius: 12px;
  background: var(--grad);
  display: flex; align-items: center; justify-content: center;
  color: #fff; font-size: 1.4rem;
  flex-shrink: 0;
}

.ov-label {
  font-size: .68rem;
  font-weight: 700;
  letter-spacing: .1em;
  text-transform: uppercase;
  color: var(--muted);
  display: block;
  margin-bottom: .2rem;
}

.ov-value {
  font-size: 1.02rem;
  font-weight: 700;
  color: var(--ink);
  line-height: 1.3;
}

/* ── Highlight / note box ── */
.highlight-box {
  background: var(--bg-alt);
  border-left: 4px solid var(--accent);
  border-radius: var(--radius);
  padding: 2rem 2rem 1.5rem;
  margin: 1.5rem 0;
  font-size: 1.05rem;
  color: var(--ink);
  line-height: 1.9;
}

.highlight-box p {
  font-size: 1.05rem;
  line-height: 1.9;
  color: var(--ink);
  margin-bottom: 1rem;
}

.highlight-box p:last-child { margin-bottom: 0; }

.warning-box {
  background: #fff8e1;
  border-left: 4px solid #f59e0b;
  border-radius: 0 var(--radius) var(--radius) 0;
  padding: 1.1rem 1.4rem;
  margin: 1.5rem 0;
  font-size: .9rem;
  color: var(--ink);
  line-height: 1.75;
}

/* ── Download button ── */
.dl-btn {
  display: inline-flex;
  align-items: center;
  gap: .5rem;
  background: var(--bg-alt);
  color: var(--primary) !important;
  text-decoration: none;
  border-radius: 8px;
  padding: .52rem 1.15rem;
  font-size: .85rem;
  font-weight: 600;
  border: 1.5px solid #c8dcf5;
  margin-top: .5rem;
  transition: background .2s;
}

.dl-btn:hover { background: #d6e8f8; color: var(--primary) !important; }

/* ── Schedule table ── */
.schedule-wrap {
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: var(--shadow);
  margin: 1.5rem 0;
}

.table-schedule {
  width: 100%;
  border-collapse: collapse;
  margin: 0;
}

.table-schedule thead th {
  background: var(--grad);
  color: #fff;
  padding: .85rem 1rem;
  font-size: .8rem;
  font-weight: 600;
  letter-spacing: .05em;
  text-transform: uppercase;
}

.table-schedule tbody td {
  padding: .75rem 1rem;
  font-size: .87rem;
  color: var(--ink);
  border-bottom: 1px solid #e8f0fb;
  vertical-align: top;
  background: #fff;
}

.table-schedule tbody tr:last-child td { border-bottom: none; }
.table-schedule tbody tr:hover td { background: var(--bg-alt); }

.table-schedule .time-cell {
  color: var(--primary);
  font-weight: 600;
  white-space: nowrap;
  width: 120px;
}

.day-header td {
  background: #eef4fb !important;
  font-weight: 700;
  color: var(--primary) !important;
  font-size: .82rem;
  letter-spacing: .06em;
  text-transform: uppercase;
}

/* ── Session topics list ── */
.session-item {
  border-bottom: 1px solid #e8f0fb;
  padding: 1.8rem 0;
}

.session-item:first-child { padding-top: 0; }
.session-item:last-child { border-bottom: none; }

.session-item h3 {
  color: var(--primary);
  font-size: 1.08rem;
  margin-bottom: .8rem;
}

.session-item p { font-size: .9rem; color: var(--muted); }

.topic-list {
  background: var(--bg-alt);
  border-radius: 12px;
  padding: 1.1rem 1.4rem;
  margin: 1rem 0;
  list-style: none;
}

.topic-list > li {
  display: flex;
  align-items: flex-start;
  gap: .6rem;
  font-weight: 600;
  font-size: .9rem;
  color: var(--ink);
  margin-bottom: .5rem;
}

.topic-list > li:last-child { margin-bottom: 0; }

.topic-list > li i {
  color: var(--accent);
  font-size: 1rem;
  margin-top: .15rem;
  flex-shrink: 0;
}

.topic-list > li > ul {
  list-style: lower-alpha;
  font-weight: 400;
  color: var(--muted);
  padding-left: 1.5rem;
  margin-top: .3rem;
}

/* ── Person / committee cards ── */
.person-card {
  background: #fff;
  border-radius: var(--radius);
  padding: 1.3rem 1.5rem;
  box-shadow: var(--shadow);
  display: flex;
  align-items: center;
  gap: 1.1rem;
  margin-bottom: .9rem;
  transition: transform .25s, box-shadow .25s;
}

.person-card:hover {
  transform: translateY(-3px);
  box-shadow: 0 12px 36px rgba(7,27,62,.14);
}

.person-avatar {
  width: 58px; height: 58px;
  border-radius: 50%;
  background: var(--grad);
  display: flex; align-items: center; justify-content: center;
  font-family: 'Sora', sans-serif;
  font-size: 1.1rem;
  font-weight: 800;
  color: #fff;
  flex-shrink: 0;
}

.person-name { font-weight: 700; font-size: .95rem; color: var(--ink); margin-bottom: .15rem; }
.person-role { font-size: .8rem; color: var(--muted); }
.person-org  { font-size: .78rem; color: var(--accent); font-weight: 600; }

/* ── Notice / news cards ── */
.notice-card {
  background: #fff;
  border-radius: var(--radius);
  padding: 1.4rem 1.7rem;
  box-shadow: var(--shadow);
  margin-bottom: 1rem;
  border-left: 4px solid var(--primary);
  transition: transform .25s, box-shadow .25s;
}

.notice-card:hover { transform: translateY(-3px); box-shadow: 0 12px 36px rgba(7,27,62,.14); }
.notice-card .notice-date { font-size: .72rem; color: var(--muted); margin-bottom: .3rem; font-weight: 600; letter-spacing: .07em; text-transform: uppercase; }
.notice-card h5 { font-size: .95rem; color: var(--ink); margin-bottom: .3rem; }
.notice-card p  { font-size: .84rem; color: var(--muted); margin: 0; line-height: 1.6; }

/* ── FAQ accordion ── */
.faq-item {
  border: 1.5px solid #dde8f5;
  border-radius: var(--radius);
  margin-bottom: .9rem;
  overflow: hidden;
  background: #fff;
}

.faq-question {
  width: 100%;
  padding: 1.1rem 1.4rem;
  font-weight: 600;
  font-size: .9rem;
  color: var(--ink);
  cursor: pointer;
  display: flex;
  justify-content: space-between;
  align-items: center;
  background: #fff;
  border: none;
  text-align: left;
  transition: background .2s;
  font-family: 'Sora', sans-serif;
}

.faq-question:hover { background: var(--bg-alt); }
.faq-question .faq-icon { font-size: 1.2rem; color: var(--primary); flex-shrink: 0; transition: transform .3s; }
.faq-question[aria-expanded="true"] { color: var(--primary); }
.faq-question[aria-expanded="true"] .faq-icon { transform: rotate(45deg); color: var(--accent); }

.faq-answer {
  font-size: .88rem;
  color: var(--muted);
  line-height: 1.85;
  padding: 0 1.4rem;
  border-top: 1px solid #e8f0fb;
}

.faq-answer p { padding: 1rem 0; margin: 0; }

/* ── Photo gallery ── */
.gallery-item {
  border-radius: var(--radius);
  overflow: hidden;
  background: var(--bg-alt);
  aspect-ratio: 4/3;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--muted);
  font-size: .85rem;
  text-align: center;
  box-shadow: var(--shadow);
  transition: transform .3s;
}

.gallery-item:hover { transform: scale(1.03); }

/* ── Sponsor cards ── */
.sponsor-card {
  background: #fff;
  border-radius: var(--radius);
  padding: 2rem;
  text-align: center;
  box-shadow: var(--shadow);
  height: 100%;
  transition: transform .3s, box-shadow .3s;
}

.sponsor-card:hover { transform: translateY(-6px); box-shadow: 0 18px 50px rgba(7,27,62,.16); }
.sponsor-tier { font-size: .7rem; font-weight: 700; letter-spacing: .1em; text-transform: uppercase; margin-bottom: .5rem; }
.sponsor-logo { width: 80px; height: 80px; border-radius: 16px; margin: 0 auto 1rem; display: flex; align-items: center; justify-content: center; font-size: 2rem; }

/* ============================================================
   RESPONSIVE
   ============================================================ */
@media (max-width: 991px) {
  .navbar-nav { padding: 1rem 0; gap: 0 !important; }
  .btn-register { margin: .5rem 0; }
  .hero-meta { gap: 1rem; }
}

@media (max-width: 767px) {
  #about   { padding: 3.5rem 0; }
  #themes  { padding: 3.5rem 0; }
  #program { padding: 3.5rem 0; }
  #speakers{ padding: 3.5rem 0; }
  #venue   { padding: 3.5rem 0; }
  #register{ padding: 3.5rem 0; }
  .countdown-card { margin-top: 2.5rem; }
  .timeline { padding-left: 1.8rem; }
  .timeline-item::before { left: -2.2rem; }
  .venue-map-wrap iframe { height: 300px; }
  .reg-card { padding: 1.8rem 1.4rem; }
}

@media (max-width: 575px) {
  #hero { padding-top: 90px; }
  .hero-meta { flex-direction: column; gap: .7rem; }
  .countdown-grid { gap: .3rem; }
  .countdown-cell { padding: .75rem .2rem; }
  .countdown-cell .num { font-size: 1.5rem; }
}

/* ============================================================
   WiN IDENTITY SECTION (animated logo + conference details)
   ============================================================ */
.win-identity-section {
  padding: 80px 0 60px;
  background: linear-gradient(180deg, #f0f6ff 0%, #fff 100%);
  position: relative;
  overflow: hidden;
}

.win-identity-section::before {
  content: '';
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse at 10% 50%, rgba(0,169,157,.06) 0%, transparent 60%),
    radial-gradient(ellipse at 90% 50%, rgba(247,148,29,.05) 0%, transparent 60%);
  pointer-events: none;
}

.win-logo-hero-wrap {
  width: min(460px, 100%);
  margin: 0 auto;
  filter: drop-shadow(0 4px 28px rgba(46,109,164,.15));
}

.win-logo-hero-wrap svg {
  width: 100%;
  height: auto;
  display: block;
}

.win-identity-text {
  padding-left: 1rem;
}

.win-identity-title {
  font-family: 'Sora', sans-serif;
  font-weight: 800;
  font-size: clamp(2rem, 4vw, 3rem);
  line-height: 1.1;
  color: var(--ink);
  margin-bottom: 1.6rem;
}

.win-identity-meta {
  display: flex;
  flex-direction: column;
  gap: .9rem;
  margin-bottom: 1.8rem;
}

.win-meta-row {
  display: flex;
  align-items: flex-start;
  gap: .9rem;
}

.win-meta-icon {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background: rgba(21,101,192,.08);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--primary);
  font-size: 1rem;
  flex-shrink: 0;
}

.win-meta-label {
  display: block;
  font-size: .72rem;
  font-weight: 700;
  letter-spacing: .1em;
  text-transform: uppercase;
  color: var(--muted);
  line-height: 1.2;
}

.win-meta-value {
  display: block;
  font-size: .96rem;
  font-weight: 600;
  color: var(--ink);
  line-height: 1.4;
}

@media (max-width: 767px) {
  .win-identity-text { padding-left: 0; text-align: center; }
  .win-meta-row { justify-content: center; }
  .win-identity-section { padding: 60px 0 40px; }
}

/* ============================================================
   VIDEO SECTION
   ============================================================ */
.video-section-wrap {
  padding: 70px 0;
  background: var(--bg-alt);
  position: relative;
}

.conf-video-wrap {
  border-radius: 20px;
  overflow: hidden;
  box-shadow:
    0 0 0 1px rgba(21,101,192,.1),
    0 20px 60px rgba(7,27,62,.15);
  position: relative;
  background: #000;
}

.conf-video-wrap::after {
  content: '';
  position: absolute;
  bottom: 0; left: 0; right: 0;
  height: 4px;
  background: linear-gradient(90deg, #00A99D, #F7941D, #C1272D);
  border-radius: 0 0 20px 20px;
  pointer-events: none;
}

.conf-video-wrap video {
  width: 100%;
  display: block;
  border-radius: 20px 20px 16px 16px;
  outline: none;
  max-height: 520px;
  object-fit: contain;
  background: #000;
}

@media (max-width: 767px) {
  .video-section-wrap { padding: 50px 0; }
  .conf-video-wrap video { max-height: 240px; }
}