:root {
  --bg: #0b1020;
  --bg-soft: #121a31;
  --card: #16213d;
  --text: #e8eefc;
  --muted: #aebad8;
  --accent: #61dafb;
  --accent-2: #8df0b6;
  --border: rgba(255, 255, 255, 0.08);
  --shadow: 0 18px 40px rgba(0, 0, 0, 0.28);
  --max: 1180px;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  font-family: Inter, Arial, sans-serif;
  color: var(--text);
  background:
    radial-gradient(circle at top right, rgba(97, 218, 251, 0.12), transparent 24%),
    radial-gradient(circle at top left, rgba(141, 240, 182, 0.08), transparent 20%),
    linear-gradient(180deg, #08101f 0%, #0b1020 100%);
  line-height: 1.6;
}

a { color: var(--accent); text-decoration: none; }
a:hover { text-decoration: underline; }

img {
  max-width: 100%;
  display: block;
  border-radius: 18px;
}

.container {
  width: min(var(--max), calc(100% - 32px));
  margin: 0 auto;
}

.topbar {
  position: sticky;
  top: 0;
  z-index: 50;
  backdrop-filter: blur(10px);
  background: rgba(8, 16, 31, 0.84);
  border-bottom: 1px solid var(--border);
}

.topbar-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  min-height: 72px;
}

.logo {
  display: flex;
  align-items: center;
  gap: 12px;
  color: var(--text);
  font-weight: 800;
  letter-spacing: 0.3px;
  text-decoration: none;
}

.logo-mark {
  width: 40px;
  height: 40px;
  border-radius: 12px;
  background: linear-gradient(135deg, var(--accent), var(--accent-2));
  box-shadow: var(--shadow);
}

.nav {
  display: flex;
  flex-wrap: wrap;
  gap: 18px;
  align-items: center;
}

.nav a {
  color: var(--text);
  opacity: 0.92;
  font-size: 15px;
}

.nav a.btn-link {
  padding: 10px 14px;
  border: 1px solid var(--border);
  border-radius: 12px;
  background: rgba(255,255,255,0.04);
}

.hero { padding: 72px 0 48px; }

.hero-grid {
  display: grid;
  grid-template-columns: 1.15fr 0.85fr;
  gap: 28px;
  align-items: center;
}

.badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 12px;
  background: rgba(97, 218, 251, 0.12);
  border: 1px solid rgba(97, 218, 251, 0.24);
  border-radius: 999px;
  color: #d5f8ff;
  font-size: 14px;
  margin-bottom: 16px;
}

h1, h2, h3 {
  line-height: 1.15;
  margin: 0 0 16px;
}

h1 {
  font-size: clamp(34px, 5vw, 62px);
  letter-spacing: -1.2px;
}

h2 { font-size: clamp(28px, 3.6vw, 40px); }

p.lead {
  font-size: 18px;
  color: var(--muted);
  margin: 0 0 22px;
  max-width: 680px;
}

.actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin-top: 24px;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  padding: 14px 18px;
  border-radius: 14px;
  border: 1px solid transparent;
  font-weight: 700;
  text-decoration: none;
  cursor: pointer;
  transition: 0.18s ease;
}

.btn-primary {
  color: #09111e;
  background: linear-gradient(135deg, var(--accent), var(--accent-2));
  box-shadow: var(--shadow);
}

.btn-secondary {
  color: var(--text);
  background: rgba(255,255,255,0.04);
  border-color: var(--border);
}

.btn:hover {
  transform: translateY(-1px);
  text-decoration: none;
}

.card {
  background: linear-gradient(180deg, rgba(255,255,255,0.03), rgba(255,255,255,0.015));
  border: 1px solid var(--border);
  border-radius: 22px;
  box-shadow: var(--shadow);
}

.hero-side { padding: 20px; }

.section { padding: 28px 0 48px; }

.section-head {
  display: flex;
  align-items: end;
  justify-content: space-between;
  gap: 16px;
  margin-bottom: 22px;
}

.muted { color: var(--muted); }

.grid-3 {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 22px;
}

.grid-2 {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 22px;
}

.feature,
.news-card,
.info-card,
.page-card,
.form-card {
  padding: 24px;
}

.feature h3,
.news-card h3,
.info-card h3 {
  margin-bottom: 10px;
  font-size: 22px;
}

.news-meta {
  font-size: 14px;
  color: var(--muted);
  margin-bottom: 10px;
}

.page-hero { padding: 56px 0 20px; }
.page-card { margin-bottom: 20px; }

.page-card h2 {
  font-size: 28px;
  margin-bottom: 12px;
}

.page-card h3 {
  font-size: 20px;
  margin-top: 26px;
  margin-bottom: 10px;
}

.page-card ul,
.page-card ol { padding-left: 22px; }

.form-card {
  max-width: 560px;
  margin: 0 auto 40px;
}

.form-row { margin-bottom: 16px; }

label {
  display: block;
  margin-bottom: 8px;
  font-weight: 600;
}

input {
  width: 100%;
  padding: 14px 14px;
  background: rgba(255,255,255,0.04);
  border: 1px solid var(--border);
  color: var(--text);
  border-radius: 14px;
  outline: none;
}

input:focus {
  border-color: rgba(97, 218, 251, 0.5);
  box-shadow: 0 0 0 4px rgba(97, 218, 251, 0.12);
}

.notice {
  margin-top: 16px;
  padding: 14px;
  border-radius: 14px;
  background: rgba(141, 240, 182, 0.08);
  border: 1px solid rgba(141, 240, 182, 0.22);
  color: #dbffe7;
}

.footer {
  border-top: 1px solid var(--border);
  padding: 26px 0 40px;
  margin-top: 24px;
  color: var(--muted);
  font-size: 14px;
}

.footer-grid {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 14px;
}

.footer-links {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
}

@media (max-width: 980px) {
  .hero-grid,
  .grid-3,
  .grid-2 {
    grid-template-columns: 1fr;
  }

  .topbar-inner,
  .section-head,
  .footer-grid {
    align-items: flex-start;
    flex-direction: column;
  }

  .nav { gap: 12px; }
}