:root {
  --bg: #0b1220;
  --panel: #111a2e;
  --text: #e8eefc;
  --muted: #a9b4d0;
  --accent: #6ea8fe;
  --border: rgba(255,255,255,0.10);
  --shadow: 0 10px 30px rgba(0,0,0,0.35);
}

* { box-sizing: border-box; }
html, body { height: 100%; }
body {
  margin: 0;
  font-family: system-ui, -apple-system, Segoe UI, Roboto, Arial, sans-serif;
  background: radial-gradient(1000px 600px at 20% 10%, rgba(110,168,254,0.18), transparent 55%),
              radial-gradient(900px 600px at 80% 0%, rgba(173,110,254,0.14), transparent 55%),
              var(--bg);
  color: var(--text);
  line-height: 1.5;
}

.container {
  width: min(1050px, calc(100% - 2rem));
  margin: 0 auto;
}

.site-header {
  position: sticky;
  top: 0;
  backdrop-filter: blur(10px);
  background: rgba(11,18,32,0.65);
  border-bottom: 1px solid var(--border);
  z-index: 10;
}

.header-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0.9rem 0;
  gap: 1rem;
}

.brand {
  text-decoration: none;
  color: var(--text);
  font-weight: 800;
  letter-spacing: 0.4px;
}

.nav { display: flex; gap: 0.25rem; flex-wrap: wrap; }
.nav-link {
  text-decoration: none;
  color: var(--muted);
  padding: 0.45rem 0.7rem;
  border-radius: 999px;
  border: 1px solid transparent;
}
.nav-link:hover {
  color: var(--text);
  border-color: var(--border);
  background: rgba(255,255,255,0.04);
}
.nav-link.active {
  color: var(--text);
  border-color: rgba(110,168,254,0.35);
  background: rgba(110,168,254,0.12);
}

.hero {
  padding: 3rem 0 1.5rem;
}
.hero h1 {
  font-size: clamp(2rem, 3.5vw, 3rem);
  margin: 0 0 0.6rem;
}
.lead {
  color: var(--muted);
  font-size: 1.05rem;
  max-width: 70ch;
}

.actions { margin-top: 1.25rem; display: flex; gap: 0.75rem; flex-wrap: wrap; }

.btn {
  display: inline-block;
  border: 1px solid rgba(110,168,254,0.45);
  background: rgba(110,168,254,0.18);
  color: var(--text);
  padding: 0.65rem 0.95rem;
  border-radius: 12px;
  text-decoration: none;
  font-weight: 650;
  box-shadow: var(--shadow);
}
.btn:hover { background: rgba(110,168,254,0.25); }
.btn:active { transform: translateY(1px); }

.btn-outline {
  background: transparent;
  border-color: var(--border);
  box-shadow: none;
}
.btn-outline:hover {
  background: rgba(255,255,255,0.06);
}

.grid {
  display: grid;
  grid-template-columns: repeat(12, 1fr);
  gap: 1rem;
  padding: 1rem 0 3rem;
}

.card {
  grid-column: span 12;
  background: rgba(17,26,46,0.75);
  border: 1px solid var(--border);
  border-radius: 18px;
  padding: 1rem 1rem;
  box-shadow: var(--shadow);
}

@media (min-width: 800px) {
  .card { padding: 1.2rem 1.25rem; }
  .grid .card { grid-column: span 4; }
}

.page { padding: 2rem 0 3rem; }

.form label {
  display: block;
  margin: 0.9rem 0;
  color: var(--muted);
  font-weight: 600;
}

input, textarea {
  width: 100%;
  margin-top: 0.35rem;
  padding: 0.7rem 0.8rem;
  border-radius: 12px;
  border: 1px solid var(--border);
  background: rgba(0,0,0,0.18);
  color: var(--text);
  outline: none;
}
input:focus, textarea:focus {
  border-color: rgba(110,168,254,0.55);
  box-shadow: 0 0 0 4px rgba(110,168,254,0.12);
}

.site-footer {
  border-top: 1px solid var(--border);
  padding: 1.2rem 0;
  background: rgba(11,18,32,0.55);
}
.footer-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 1rem;
  flex-wrap: wrap;
}

.muted { color: var(--muted); }
code {
  background: rgba(255,255,255,0.08);
  padding: 0.12rem 0.35rem;
  border-radius: 8px;
  border: 1px solid var(--border);
}