:root {
  --primary: #023453;
  --accent: linear-gradient(135deg, #0f766e, #10b981);
  --gold: #d6b56d;
  --text: #143244;
  --muted: #567286;
  --surface: #ffffff;
  --bg: #f8fbfc;
  --border: #d9e5eb;
  --radius: 24px;
  --shadow: 0 8px 20px rgba(2, 52, 83, 0.06);
}
* { box-sizing: border-box; }
html, body {
  margin: 0;
  padding: 0;
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  color: var(--text);
  background: #fff;
}
a { color: inherit; text-decoration: none; }
.container {
  width: min(1120px, 92%);
  margin: 0 auto;
}
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 50;
  background: rgba(255, 255, 255, 0.84);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid rgba(2, 52, 83, 0.08);
}
.nav-wrap {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 14px 0;
}
.logo {
  font-weight: 800;
  color: var(--primary);
  font-size: 1.1rem;
}
.sub-logo {
  margin: 2px 0 0;
  color: var(--muted);
  font-size: 0.8rem;
}
.btn {
  border: none;
  border-radius: 999px;
  padding: 12px 22px;
  font-weight: 600;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  transition: transform 0.2s ease, opacity 0.2s ease;
  gap: 8px;
}
.btn:hover { transform: translateY(-1px); }
.btn:disabled { opacity: 0.5; cursor: not-allowed; }
.btn-primary {
  background: var(--accent);
  color: #fff;
}
.btn-secondary {
  background: rgba(255, 255, 255, 0.85);
  border: 1px solid rgba(2, 52, 83, 0.18);
  color: var(--primary);
}
.hero {
  position: relative;
  min-height: 72vh;
  display: flex;
  align-items: center;
  background-image:
    linear-gradient(140deg, rgba(2, 52, 83, 0.92), rgba(15, 118, 110, 0.75)),
    var(--hero-image),
    linear-gradient(140deg, #023453, #0f766e);
  background-size: cover;
  background-position: center;
  margin-top: 70px;
}
.hero-content-wrap {
  position: relative;
  z-index: 1;
  padding: 42px 0 54px;
  display: flex;
  justify-content: center;
}
.hero-glass-card {
  width: min(920px, 100%);
  padding: clamp(20px, 4vw, 36px);
  background: rgba(255, 255, 255, 0.72);
  border: 1px solid rgba(255, 255, 255, 0.75);
  border-radius: 28px;
  backdrop-filter: blur(8px);
  box-shadow: 0 10px 28px rgba(2, 52, 83, 0.12);
}
.hero-overlay {
  position: absolute;
  inset: 0;
  background: rgba(255, 255, 255, 0.32);
}
.hero-content {
  position: relative;
  z-index: 1;
  color: #05253a;
  padding: 60px 0;
}
.text-center { text-align: center; }
.hero-content h1 {
  margin: 0;
  font-size: clamp(2rem, 7vw, 4rem);
  line-height: 1.1;
}
.eyebrow {
  letter-spacing: 0.16em;
  font-weight: 700;
  font-size: 0.82rem;
  color: var(--gold);
}
.tagline {
  font-size: clamp(1rem, 2.5vw, 1.28rem);
  font-weight: 600;
  margin: 14px 0;
}
.hero-desc {
  max-width: 740px;
  margin: 0 auto;
  color: #11324a;
  line-height: 1.7;
}
.hero-actions {
  margin-top: 24px;
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
}
.center-actions { justify-content: center; }
.section {
  padding: 78px 0;
}
.section-head h2 {
  font-size: clamp(1.4rem, 4vw, 2.2rem);
  margin: 0 0 8px;
  color: var(--primary);
}
.section-head p {
  color: var(--muted);
  line-height: 1.72;
  max-width: 900px;
  margin-left: auto;
  margin-right: auto;
}
.icon { margin-right: 8px; color: #0f766e; }
.countdown-grid {
  margin-top: 22px;
  display: grid;
  grid-template-columns: repeat(2, minmax(130px, 1fr));
  gap: 14px;
}
.countdown-widget.compact {
  margin-top: 18px;
  background: rgba(255, 255, 255, 0.58);
  border: 1px solid rgba(2, 52, 83, 0.12);
  border-radius: 24px;
  box-shadow: 0 8px 18px rgba(2, 52, 83, 0.08);
  padding: 12px;
}
.countdown-mini-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(110px, 1fr));
  gap: 10px;
}
.time-mini {
  border: 1px solid rgba(2, 52, 83, 0.12);
  border-radius: 18px;
  background: rgba(255, 255, 255, 0.88);
  padding: 10px;
}
.time-mini span {
  font-size: clamp(1.1rem, 4vw, 1.45rem);
  color: var(--primary);
  font-weight: 800;
}
.time-mini small {
  display: block;
  font-size: 0.8rem;
  color: var(--muted);
}
.time-card {
  background: #fff;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 20px;
  text-align: center;
}
.time-card span {
  font-size: clamp(1.6rem, 6vw, 2.7rem);
  font-weight: 800;
  color: var(--primary);
}
.time-card small {
  display: block;
  margin-top: 4px;
  color: var(--muted);
}
.countdown-note {
  margin-top: 14px;
  color: var(--primary);
  font-weight: 500;
}
.card-grid {
  display: grid;
  gap: 16px;
  margin-top: 22px;
}
.card {
  background: #fff;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 22px;
  box-shadow: var(--shadow);
}
.card h3 {
  margin: 0 0 8px;
  color: var(--primary);
}
.card-icon {
  width: 44px;
  height: 44px;
  border-radius: 50%;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 10px;
  background: rgba(15, 118, 110, 0.12);
  color: #0f766e;
  font-size: 1rem;
}
.card p {
  margin: 0;
  color: var(--muted);
  line-height: 1.6;
}
.visual-grid {
  margin-top: 18px;
  display: grid;
  grid-template-columns: 1fr;
  gap: 16px;
}
.visual-card {
  min-height: 190px;
  border-radius: var(--radius);
  overflow: hidden;
  background-size: cover;
  background-position: center;
  color: #fff;
  padding: 22px;
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  box-shadow: var(--shadow);
}
.visual-card h4 { margin: 0 0 6px; font-size: 1.1rem; }
.visual-card p { margin: 0; color: rgba(255,255,255,.92); }
.registration-section {
  background: var(--bg);
}
.registration-split {
  display: grid;
  grid-template-columns: 1fr;
  gap: 16px;
}
.registration-intro h2 {
  margin-top: 0;
  color: var(--primary);
}
.benefit-list {
  list-style: none;
  padding: 0;
  margin: 16px 0 0;
  display: grid;
  gap: 10px;
  color: var(--muted);
}
.benefit-list li i {
  color: #10b981;
  margin-right: 8px;
}
.form-wrap {
  background: #fff;
  border: 1px solid var(--border);
  border-radius: 28px;
  padding: clamp(20px, 4vw, 36px);
  box-shadow: var(--shadow);
}
.helper-text {
  display: block;
  margin-top: 6px;
  font-size: 0.8rem;
  color: var(--muted);
}
.full-btn {
  width: 100%;
  margin-top: 10px;
}
.form-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 14px;
}
label {
  display: flex;
  flex-direction: column;
  gap: 8px;
  color: var(--primary);
  font-weight: 600;
}
input, select, textarea {
  width: 100%;
  border: 1px solid #cfe0e8;
  border-radius: 14px;
  padding: 12px 14px;
  font-size: 0.96rem;
  font-family: inherit;
  outline: none;
}
input:focus, select:focus, textarea:focus {
  border-color: #0f766e;
  box-shadow: 0 0 0 3px rgba(15, 118, 110, 0.14);
}
.alert {
  border-radius: 12px;
  padding: 10px 14px;
  margin-top: 12px;
  font-weight: 500;
}
.alert.success {
  background: #e9fbf4;
  border: 1px solid #b7eed6;
  color: #0f5132;
}
.alert.error {
  background: #fdf1f1;
  border: 1px solid #f2caca;
  color: #842029;
}
.site-footer {
  background: #f3f8fa;
  border-top: 1px solid #dce8ee;
  padding: 38px 0;
}
.footer-wrap {
  display: flex;
  flex-direction: column;
  gap: 14px;
  color: var(--muted);
}
.footer-wrap h3 {
  color: var(--primary);
  margin: 0 0 8px;
}
.footer-wrap p {
  margin: 4px 0;
}
.footer-wrap a {
  color: var(--primary);
  font-weight: 600;
}
@media (min-width: 768px) {
  .hero { min-height: 82vh; }
  .countdown-grid { grid-template-columns: repeat(4, 1fr); }
  .countdown-mini-grid { grid-template-columns: repeat(4, minmax(120px, 1fr)); }
  .three-col { grid-template-columns: repeat(3, 1fr); }
  .two-col { grid-template-columns: repeat(2, 1fr); }
  .registration-split { grid-template-columns: 0.95fr 1.05fr; align-items: start; }
  .form-grid { grid-template-columns: repeat(2, 1fr); }
  .form-grid label:last-child { grid-column: 1 / -1; }
  .footer-wrap { flex-direction: row; justify-content: space-between; }
  .visual-grid { grid-template-columns: repeat(2, 1fr); }
}