:root {
  --bg: #0b0d14;
  --surface: #12151f;
  --surface2: #1a1f2e;
  --border: rgba(255,255,255,0.08);
  --text: #e8eaef;
  --muted: #8b92a8;
  --accent: #6b70e8;
  --accent2: #8b90ff;
  --success: #3dd68c;
  --radius: 14px;
  --font: "Segoe UI", system-ui, -apple-system, sans-serif;
}

* { box-sizing: border-box; margin: 0; padding: 0; }

body {
  font-family: var(--font);
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

a { color: var(--accent2); text-decoration: none; }
a:hover { text-decoration: underline; }

.wrap { max-width: 1080px; margin: 0 auto; padding: 0 24px; }

nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 20px 0;
  border-bottom: 1px solid var(--border);
}

.logo {
  font-weight: 700;
  font-size: 1.25rem;
  color: var(--text);
  display: flex;
  align-items: center;
  gap: 10px;
}

.logo span { color: var(--accent2); }

.nav-links { display: flex; gap: 24px; align-items: center; }
.nav-links a { color: var(--muted); font-size: 0.9rem; }

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 10px 20px;
  border-radius: 10px;
  font-weight: 600;
  font-size: 0.9rem;
  border: none;
  cursor: pointer;
  transition: transform 0.15s, box-shadow 0.15s;
}

.btn-primary {
  background: linear-gradient(135deg, var(--accent), var(--accent2));
  color: #fff;
  box-shadow: 0 4px 20px rgba(107,112,232,0.35);
}

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

.btn-ghost {
  background: transparent;
  color: var(--muted);
  border: 1px solid var(--border);
}

.hero {
  padding: 80px 0 60px;
  text-align: center;
}

.hero-badge {
  display: inline-block;
  padding: 6px 14px;
  border-radius: 999px;
  background: rgba(107,112,232,0.15);
  color: var(--accent2);
  font-size: 0.8rem;
  font-weight: 600;
  margin-bottom: 20px;
}

.hero h1 {
  font-size: clamp(2rem, 5vw, 3.2rem);
  line-height: 1.15;
  margin-bottom: 16px;
  letter-spacing: -0.02em;
}

.hero p {
  color: var(--muted);
  font-size: 1.1rem;
  max-width: 560px;
  margin: 0 auto 32px;
}

.hero-actions { display: flex; gap: 12px; justify-content: center; flex-wrap: wrap; }

section { padding: 60px 0; }

.section-title {
  text-align: center;
  font-size: 1.75rem;
  margin-bottom: 12px;
}

.section-sub {
  text-align: center;
  color: var(--muted);
  margin-bottom: 40px;
}

.grid-3 {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 20px;
}

.card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 24px;
}

.card h3 { margin-bottom: 8px; font-size: 1rem; }
.card p { color: var(--muted); font-size: 0.9rem; }

.code-block {
  background: var(--surface2);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 20px;
  overflow-x: auto;
  font-family: ui-monospace, monospace;
  font-size: 0.85rem;
  color: #c9d1d9;
  margin: 16px 0;
}

.form-section {
  background: linear-gradient(180deg, var(--surface) 0%, var(--bg) 100%);
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}

.form-card {
  max-width: 480px;
  margin: 0 auto;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 32px;
}

.form-card h2 { text-align: center; margin-bottom: 8px; }
.form-card .sub { text-align: center; color: var(--muted); font-size: 0.9rem; margin-bottom: 24px; }

label {
  display: block;
  font-size: 0.85rem;
  font-weight: 500;
  margin-bottom: 6px;
  color: var(--muted);
}

input, textarea {
  width: 100%;
  padding: 10px 14px;
  border-radius: 10px;
  border: 1px solid var(--border);
  background: var(--surface2);
  color: var(--text);
  font-size: 0.95rem;
  margin-bottom: 16px;
}

input:focus, textarea:focus {
  outline: none;
  border-color: var(--accent);
}

.checkbox-row {
  display: flex;
  gap: 10px;
  align-items: flex-start;
  margin-bottom: 20px;
  font-size: 0.85rem;
  color: var(--muted);
}

.checkbox-row input { width: auto; margin: 3px 0 0; }

.msg {
  padding: 12px 16px;
  border-radius: 10px;
  font-size: 0.9rem;
  margin-top: 16px;
  display: none;
}

.msg.ok { display: block; background: rgba(61,214,140,0.12); color: var(--success); border: 1px solid rgba(61,214,140,0.25); }
.msg.err { display: block; background: rgba(255,100,100,0.12); color: #ff8a8a; border: 1px solid rgba(255,100,100,0.25); }

footer {
  padding: 40px 0;
  text-align: center;
  color: var(--muted);
  font-size: 0.85rem;
}

footer a { color: var(--accent2); }

.legal { max-width: 720px; margin: 40px auto; padding: 0 24px 80px; }
.legal h1 { margin-bottom: 24px; }
.legal h2 { margin: 28px 0 12px; font-size: 1.1rem; }
.legal p, .legal li { color: var(--muted); margin-bottom: 12px; }
.legal ul { padding-left: 20px; }

@media (max-width: 640px) {
  .nav-links { display: none; }
}