:root {
  --tn-blue-950: #061a3a;
  --tn-blue-900: #08285a;
  --tn-blue-800: #0a3f91;
  --tn-blue-600: #005bea;
  --tn-blue-400: #00a7ff;
  --tn-gold: #f4b400;
  --tn-gold-light: #ffd66b;
  --tn-white: #ffffff;
  --tn-soft: #f4f8ff;
  --tn-text: #102033;
  --tn-muted: #5b6b84;
  --tn-border: rgba(0, 91, 234, 0.12);
  --tn-shadow: 0 24px 70px rgba(6, 26, 58, 0.14);
  --tn-radius: 28px;
}

* { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  font-family: Arial, Helvetica, sans-serif;
  background: var(--tn-soft);
  color: var(--tn-text);
  line-height: 1.6;
}
img { max-width: 100%; display: block; }
a { text-decoration: none; color: inherit; }
.page { overflow: hidden; }
.container { width: min(92%, 1180px); margin: 0 auto; }

.site-header {
  position: sticky;
  position: -webkit-sticky;
  top: 0;
  left: 0;
  right: 0;
  z-index: 9999;
  background: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(18px);
  -webkit-backdrop-filter: blur(18px);
  border-bottom: 1px solid rgba(0, 91, 234, 0.08);
  box-shadow: 0 10px 30px rgba(6, 26, 58, 0.08);
}

.nav {
  min-height: 82px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
}
.brand { display: flex; align-items: center; gap: 12px; min-width: 0; }
.brand img {
  width: 56px;
  height: 56px;
  object-fit: contain;
  border-radius: 16px;
  background: #fff;
  box-shadow: 0 10px 25px rgba(0, 91, 234, 0.14);
}
.brand span {
  display: block;
  color: var(--tn-blue-900);
  font-size: 17px;
  font-weight: 900;
  line-height: 1.15;
  letter-spacing: -0.2px;
}
.brand small {
  display: block;
  color: var(--tn-gold);
  font-size: 12px;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 0.08em;
}
.menu-toggle { display: none; }
.menu-icon {
  display: none;
  width: 46px;
  height: 46px;
  border-radius: 14px;
  border: 1px solid var(--tn-border);
  background: #fff;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  box-shadow: 0 10px 24px rgba(6, 26, 58, 0.08);
}
.menu-icon span,
.menu-icon span::before,
.menu-icon span::after {
  content: "";
  display: block;
  width: 22px;
  height: 3px;
  background: var(--tn-blue-900);
  border-radius: 999px;
  transition: 0.25s ease;
  position: relative;
}
.menu-icon span::before { position: absolute; top: -7px; }
.menu-icon span::after { position: absolute; top: 7px; }
.nav-menu { display: flex; align-items: center; gap: 22px; }
.nav-links {
  display: flex;
  align-items: center;
  gap: 20px;
  font-size: 14px;
  font-weight: 800;
  color: var(--tn-blue-900);
}
.nav-links a { padding: 10px 0; border-bottom: 3px solid transparent; transition: 0.25s ease; }
.nav-links a:hover,
.nav-links a.active { color: var(--tn-blue-600); border-color: var(--tn-gold); }
.nav-links a.register-link {
  padding: 12px 20px;
  border-radius: 999px;
  border: 0;
  background: linear-gradient(135deg, var(--tn-gold-light), var(--tn-gold));
  color: #17213a;
  box-shadow: 0 14px 28px rgba(244, 180, 0, 0.22);
}
.nav-links a.register-link:hover,
.nav-links a.register-link.active {
  color: #17213a;
  border: 0;
  transform: translateY(-2px);
}
.nav-btn,
.btn-primary,
.btn-secondary {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: 999px;
  font-weight: 900;
  transition: 0.25s ease;
  text-align: center;
  white-space: nowrap;
}
.nav-btn,
.btn-primary {
  background: linear-gradient(135deg, var(--tn-gold-light), var(--tn-gold));
  color: #17213a;
  box-shadow: 0 14px 28px rgba(244, 180, 0, 0.28);
}
.nav-btn { padding: 12px 20px; }
.btn-primary,
.btn-secondary { padding: 15px 24px; }
.btn-secondary {
  background: rgba(255, 255, 255, 0.12);
  color: var(--tn-white);
  border: 1px solid rgba(255, 255, 255, 0.22);
  backdrop-filter: blur(10px);
}
.btn-primary:hover,
.btn-secondary:hover,
.nav-btn:hover { transform: translateY(-2px); }

.hero,
.page-hero {
  position: relative;
  color: var(--tn-white);
  background:
    radial-gradient(circle at 8% 20%, rgba(0, 167, 255, 0.36), transparent 28%),
    radial-gradient(circle at 88% 16%, rgba(244, 180, 0, 0.26), transparent 24%),
    linear-gradient(135deg, var(--tn-blue-950) 0%, var(--tn-blue-900) 42%, var(--tn-blue-600) 100%);
}
.hero { padding: 92px 0 84px; }
.page-hero { padding: 72px 0; text-align: center; }
.hero::before,
.page-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  opacity: 0.18;
  background-image:
    linear-gradient(rgba(255,255,255,0.12) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,0.12) 1px, transparent 1px);
  background-size: 42px 42px;
  pointer-events: none;
}
.hero-grid {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 44px;
  align-items: center;
}
.page-hero .container { position: relative; z-index: 1; }
.badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: rgba(255, 255, 255, 0.12);
  color: var(--tn-gold-light);
  padding: 9px 16px;
  border-radius: 999px;
  font-weight: 900;
  margin-bottom: 20px;
  border: 1px solid rgba(255, 255, 255, 0.18);
  backdrop-filter: blur(10px);
  font-size: 14px;
}
.hero h1,
.page-hero h1 {
  font-size: clamp(42px, 7vw, 82px);
  line-height: 0.95;
  margin-bottom: 22px;
  letter-spacing: -2px;
}
.page-hero h1 { font-size: clamp(38px, 5vw, 64px); }
.hero h1 span,
.page-hero h1 span { color: var(--tn-gold-light); }
.hero p,
.page-hero p {
  font-size: 19px;
  max-width: 760px;
  color: rgba(255, 255, 255, 0.9);
  margin: 0 auto 14px;
}
.hero p { margin-left: 0; }
.hero-actions { display: flex; gap: 14px; flex-wrap: wrap; margin-top: 28px; }
.hero-card {
  position: relative;
  background: rgba(255, 255, 255, 0.11);
  border: 1px solid rgba(255, 255, 255, 0.2);
  border-radius: 36px;
  padding: 32px;
  box-shadow: 0 30px 80px rgba(0, 0, 0, 0.22);
  backdrop-filter: blur(18px);
  overflow: hidden;
}
.hero-card::before {
  content: "";
  position: absolute;
  width: 180px;
  height: 180px;
  right: -70px;
  top: -70px;
  background: radial-gradient(circle, rgba(244, 180, 0, 0.42), transparent 70%);
}
.hero-card::after {
  content: "🏆";
  position: absolute;
  top: 18px;
  right: 24px;
  font-size: 54px;
  filter: drop-shadow(0 10px 20px rgba(0,0,0,0.2));
}
.hero-card img {
  width: 112px;
  height: 112px;
  object-fit: contain;
  border-radius: 24px;
  background: #fff;
  padding: 8px;
  margin-bottom: 22px;
  box-shadow: 0 18px 36px rgba(0, 0, 0, 0.18);
}
.hero-card h2 { color: var(--tn-gold-light); font-size: 32px; margin-bottom: 10px; }
.hero-card p { font-size: 16px; margin-bottom: 20px; }
.stats { display: grid; grid-template-columns: repeat(3, 1fr); gap: 12px; margin-top: 22px; }
.stat {
  background: rgba(255, 255, 255, 0.12);
  border: 1px solid rgba(255, 255, 255, 0.16);
  border-radius: 20px;
  padding: 16px 10px;
  text-align: center;
  font-weight: 900;
  color: var(--tn-white);
}
section { padding: 78px 0; scroll-margin-top: 96px; }
.section-title { text-align: center; max-width: 850px; margin: 0 auto 46px; }
.section-kicker {
  color: var(--tn-gold);
  text-transform: uppercase;
  letter-spacing: 0.12em;
  font-size: 13px;
  font-weight: 900;
  margin-bottom: 10px;
}
.section-title h2 {
  font-size: clamp(31px, 4.4vw, 50px);
  color: var(--tn-blue-900);
  margin-bottom: 13px;
  line-height: 1.08;
  letter-spacing: -1.2px;
}
.section-title p { color: var(--tn-muted); font-size: 18px; }
.categories { display: grid; grid-template-columns: repeat(4, 1fr); gap: 18px; }
.category-card {
  position: relative;
  background: var(--tn-white);
  border-radius: var(--tn-radius);
  padding: 28px 20px;
  text-align: center;
  box-shadow: 0 18px 44px rgba(6, 26, 58, 0.08);
  border: 1px solid var(--tn-border);
  transition: 0.25s ease;
  overflow: hidden;
}
.category-card::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0;
  width: 100%;
  height: 5px;
  background: linear-gradient(90deg, var(--tn-blue-600), var(--tn-blue-400), var(--tn-gold));
}
.category-card:hover { transform: translateY(-6px); box-shadow: var(--tn-shadow); }
.category-icon {
  width: 74px;
  height: 74px;
  margin: 0 auto 14px;
  border-radius: 24px;
  display: grid;
  place-items: center;
  font-size: 36px;
  background: linear-gradient(135deg, rgba(0, 91, 234, 0.1), rgba(244, 180, 0, 0.18));
}
.category-card h3 { color: var(--tn-blue-900); font-size: 20px; }
.blue-section {
  background:
    radial-gradient(circle at top left, rgba(244, 180, 0, 0.18), transparent 25%),
    radial-gradient(circle at bottom right, rgba(0, 167, 255, 0.24), transparent 28%),
    linear-gradient(135deg, var(--tn-blue-950), var(--tn-blue-800));
  color: var(--tn-white);
}
.blue-section .section-title h2,
.blue-section .section-title p { color: var(--tn-white); }
.blue-section .section-kicker { color: var(--tn-gold-light); }
.benefits,
.awards { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; }
.benefit,
.award {
  background: rgba(255, 255, 255, 0.1);
  border: 1px solid rgba(255, 255, 255, 0.16);
  border-radius: 26px;
  padding: 25px;
  backdrop-filter: blur(12px);
  color: rgba(255, 255, 255, 0.9);
}
.benefit strong,
.award strong { display: block; color: var(--tn-gold-light); font-size: 20px; margin-bottom: 8px; }
.info-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 24px; align-items: stretch; }
.info-card {
  background: var(--tn-white);
  border-radius: 32px;
  padding: 36px;
  box-shadow: 0 18px 48px rgba(6, 26, 58, 0.09);
  border: 1px solid var(--tn-border);
}
.info-card h2 { color: var(--tn-blue-900); font-size: 34px; line-height: 1.1; margin-bottom: 15px; }
.info-card p { color: var(--tn-muted); font-size: 17px; margin-bottom: 14px; }
.highlight-card { background: linear-gradient(135deg, var(--tn-gold-light), var(--tn-gold)); color: #18213b; }
.highlight-card h2,
.highlight-card p { color: #18213b; }
.cta-wrap { padding: 78px 0; background: var(--tn-soft); }
.cta {
  text-align: center;
  background:
    radial-gradient(circle at 10% 18%, rgba(255, 214, 107, 0.32), transparent 28%),
    radial-gradient(circle at 88% 82%, rgba(0, 167, 255, 0.28), transparent 26%),
    linear-gradient(135deg, var(--tn-blue-950), var(--tn-blue-600));
  color: var(--tn-white);
  border-radius: 42px;
  padding: 72px 30px;
  box-shadow: var(--tn-shadow);
  border: 1px solid rgba(255, 255, 255, 0.12);
}
.cta h2 { font-size: clamp(34px, 5vw, 58px); line-height: 1.04; margin-bottom: 16px; letter-spacing: -1px; }
.cta p { max-width: 770px; margin: 0 auto 26px; font-size: 18px; color: rgba(255,255,255,0.9); }
.cta-actions { display: flex; justify-content: center; gap: 14px; flex-wrap: wrap; margin: 26px 0 10px; }
.contact-box {
  background: rgba(255, 255, 255, 0.12);
  color: var(--tn-white);
  display: inline-block;
  padding: 18px 26px;
  border-radius: 22px;
  font-weight: 900;
  margin-top: 14px;
  border: 1px solid rgba(255, 255, 255, 0.18);
  backdrop-filter: blur(10px);
}
.form-card { max-width: 780px; margin: 0 auto; }
.form-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; margin-top: 18px; }
.form-grid label { display: grid; gap: 6px; font-weight: 800; color: var(--tn-blue-900); }
.form-grid input,
.form-grid select,
.form-grid textarea {
  width: 100%;
  border: 1px solid var(--tn-border);
  border-radius: 16px;
  padding: 14px 15px;
  font: inherit;
  background: #fff;
}
.form-grid .full { grid-column: 1 / -1; }
.form-note { color: var(--tn-muted); margin-top: 16px; font-size: 14px; }
.form-alert {
  margin-top: 18px;
  padding: 14px 16px;
  border-radius: 16px;
  font-weight: 800;
}
.form-alert.success {
  background: rgba(22, 163, 74, 0.12);
  color: #166534;
  border: 1px solid rgba(22, 163, 74, 0.22);
}
.form-alert.error {
  background: rgba(220, 38, 38, 0.1);
  color: #991b1b;
  border: 1px solid rgba(220, 38, 38, 0.22);
}
.website-field { display: none !important; }
footer { padding: 34px 0; text-align: center; color: var(--tn-muted); background: var(--tn-white); border-top: 1px solid rgba(0, 91, 234, 0.08); }

@media (max-width: 980px) {
  .hero-grid,
  .info-grid { grid-template-columns: 1fr; }
  .categories,
  .benefits,
  .awards { grid-template-columns: repeat(2, 1fr); }
  .hero { padding: 72px 0 70px; }
}
@media (max-width: 760px) {
  .nav {
    min-height: 72px;
    display: grid;
    grid-template-columns: 1fr auto;
    align-items: center;
    padding: 10px 0;
    position: relative;
  }
  .brand { justify-content: flex-start; text-align: left; }
  .menu-icon { display: flex; }
  .nav-menu {
    display: none;
    grid-column: 1 / -1;
    width: 100%;
    margin-top: 12px;
    padding: 14px;
    border-radius: 22px;
    background: rgba(255, 255, 255, 0.98);
    border: 1px solid var(--tn-border);
    box-shadow: 0 18px 44px rgba(6, 26, 58, 0.12);
  }
  .nav-links { width: 100%; flex-direction: column; align-items: stretch; gap: 8px; }
  .nav-links a { padding: 13px 14px; border-radius: 14px; background: rgba(0, 91, 234, 0.06); border: 0; }
  .nav-links a.register-link { width: 100%; padding: 13px 14px; text-align: center; }
  .nav-links a:hover,
  .nav-links a.active { background: rgba(0, 91, 234, 0.1); color: var(--tn-blue-600); }
  .nav-menu .nav-btn { width: 100%; margin-top: 12px; }
  .menu-toggle:checked ~ .menu-icon span { background: transparent; }
  .menu-toggle:checked ~ .menu-icon span::before { top: 0; transform: rotate(45deg); }
  .menu-toggle:checked ~ .menu-icon span::after { top: 0; transform: rotate(-45deg); }
  .menu-toggle:checked ~ .nav-menu { display: block; }
  .hero h1 { letter-spacing: -1px; }
  .hero p,
  .page-hero p,
  .section-title p,
  .cta p { font-size: 16px; }
  .hero-card { padding: 24px; }
  .categories,
  .benefits,
  .awards,
  .stats,
  .form-grid { grid-template-columns: 1fr; }
  .form-grid .full { grid-column: auto; }
  section,
  .cta-wrap { padding: 58px 0; }
  .hero-actions,
  .cta-actions { flex-direction: column; }
  .btn-primary,
  .btn-secondary { width: 100%; }
  .info-card { padding: 26px; }
  .cta { border-radius: 30px; padding: 46px 20px; }
  .contact-box { width: 100%; }
}
@media (max-width: 420px) {
  .brand img { width: 48px; height: 48px; }
  .brand span { font-size: 14px; }
  .brand small { font-size: 10px; }
  .hero { padding: 54px 0 58px; }
  .hero h1 { font-size: 40px; }
}


/* Clean URL multi-page additions */
.category-card-link { color: inherit; display: block; height: 100%; }
.card-link { margin-top: 14px; display: inline-flex; font-weight: 900; color: var(--tn-blue-600); }
.detail-grid { display: grid; grid-template-columns: 1.1fr 0.9fr; gap: 24px; align-items: start; }
.detail-list { list-style: none; display: grid; gap: 12px; margin-top: 14px; }
.detail-list li { background: rgba(0, 91, 234, 0.06); border: 1px solid var(--tn-border); border-radius: 16px; padding: 14px 16px; color: var(--tn-muted); }
.detail-list li strong { color: var(--tn-blue-900); }
.breadcrumb { font-weight: 900; color: var(--tn-gold-light); margin-bottom: 16px; }
.breadcrumb a { color: #fff; opacity: .9; }
.category-hero-icon { width: 96px; height: 96px; margin: 0 auto 20px; border-radius: 30px; display: grid; place-items: center; font-size: 48px; background: rgba(255,255,255,.14); border: 1px solid rgba(255,255,255,.2); }
.category-cta { display:flex; gap: 14px; flex-wrap: wrap; margin-top: 22px; }
@media (max-width: 980px) { .detail-grid { grid-template-columns: 1fr; } }