:root {
  --bg: #0d1117;
  --card: #161b22;
  --border: #30363d;
  --text: #e6edf3;
  --muted: #8b949e;
  --primary: #238636;
  --primary-hover: #2ea043;
  --accent: #f78166;
  --link: #58a6ff;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  font-family: "Segoe UI", system-ui, -apple-system, sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
}

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

.wrap { max-width: 1080px; margin: 0 auto; padding: 0 20px; }

.site-header {
  border-bottom: 1px solid var(--border);
  background: rgba(13, 17, 23, 0.95);
  position: sticky;
  top: 0;
  z-index: 10;
}

.site-header .inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 14px 0;
  flex-wrap: wrap;
}

.brand {
  font-weight: 700;
  font-size: 1.15rem;
  color: var(--text);
}

.brand span { color: var(--primary); }

.nav { display: flex; gap: 18px; flex-wrap: wrap; align-items: center; }
.nav a { color: var(--muted); font-size: 0.95rem; }
.nav a.active, .nav a:hover { color: var(--text); }

.hero {
  padding: 56px 0 40px;
  text-align: center;
}

.hero h1 {
  font-size: clamp(1.8rem, 4vw, 2.6rem);
  margin: 0 0 12px;
  line-height: 1.2;
}

.hero p.lead {
  color: var(--muted);
  font-size: 1.1rem;
  max-width: 640px;
  margin: 0 auto 28px;
}

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

.btn {
  display: inline-block;
  padding: 12px 22px;
  border-radius: 8px;
  font-weight: 600;
  border: 1px solid transparent;
  cursor: pointer;
  font-size: 1rem;
}

.btn-primary {
  background: var(--primary);
  color: #fff;
}
.btn-primary:hover { background: var(--primary-hover); text-decoration: none; }

.btn-outline {
  border-color: var(--border);
  color: var(--text);
  background: transparent;
}
.btn-outline:hover { border-color: var(--muted); text-decoration: none; }

.grid-3 {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 20px;
  margin: 40px 0;
}

.card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 24px;
}

.card h3 { margin-top: 0; }
.card .price { font-size: 1.5rem; font-weight: 700; color: var(--accent); margin: 8px 0; }
.card ul { padding-left: 18px; color: var(--muted); margin-bottom: 0; }

.section { padding: 32px 0 48px; }
.section h2 { text-align: center; margin-bottom: 8px; }
.section .sub { text-align: center; color: var(--muted); margin-bottom: 28px; }

.features {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 16px;
}

.feature {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 18px;
}

.form-box {
  max-width: 440px;
  margin: 32px auto;
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 28px;
}

.form-box h1 { margin-top: 0; font-size: 1.5rem; text-align: center; }

label {
  display: block;
  font-size: 0.9rem;
  color: var(--muted);
  margin-bottom: 6px;
}

input, select {
  width: 100%;
  padding: 11px 12px;
  margin-bottom: 14px;
  border-radius: 8px;
  border: 1px solid var(--border);
  background: var(--bg);
  color: var(--text);
  font-size: 1rem;
}

.hint { font-size: 0.82rem; color: var(--muted); margin: -8px 0 14px; }

.msg-error {
  background: rgba(248, 81, 73, 0.15);
  border: 1px solid #f85149;
  color: #ffb1ad;
  padding: 10px 12px;
  border-radius: 8px;
  margin-bottom: 14px;
  font-size: 0.9rem;
}

.msg-ok {
  background: rgba(35, 134, 54, 0.15);
  border: 1px solid var(--primary);
  color: #7ee787;
  padding: 10px 12px;
  border-radius: 8px;
  margin-bottom: 14px;
  font-size: 0.9rem;
}

.site-footer {
  border-top: 1px solid var(--border);
  padding: 28px 0;
  color: var(--muted);
  font-size: 0.9rem;
  text-align: center;
}

.steps { display: flex; gap: 8px; justify-content: center; margin-bottom: 20px; }
.step-dot {
  width: 10px; height: 10px; border-radius: 50%;
  background: var(--border);
}
.step-dot.on { background: var(--primary); }

@media (max-width: 600px) {
  .hero { padding-top: 32px; }
  .form-box { margin: 20px 12px; }
}