:root {
  --bg: #0f1117;
  --surface: #181b24;
  --primary: #4f7cff;
  --primary-dark: #3a63d8;
  --text: #e7e9ee;
  --muted: #9aa1b1;
  --border: #262a36;
  --radius: 14px;
  --max: 980px;
}

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

html {
  scroll-behavior: smooth;
}

body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
}

a {
  color: var(--primary);
  text-decoration: none;
}

a:hover {
  text-decoration: underline;
}

.container {
  width: 100%;
  max-width: var(--max);
  margin: 0 auto;
  padding: 0 20px;
}

/* Header */
.site-header {
  position: sticky;
  top: 0;
  z-index: 10;
  background: rgba(15, 17, 23, 0.85);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--border);
}

.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 64px;
}

.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 700;
  font-size: 1.15rem;
  color: var(--text);
}

.brand:hover {
  text-decoration: none;
}

.brand .logo {
  width: 32px;
  height: 32px;
  border-radius: 8px;
  background: linear-gradient(135deg, var(--primary), #8a5cff);
  display: grid;
  place-items: center;
  font-weight: 800;
  color: #fff;
}

.nav-links {
  display: flex;
  gap: 22px;
  list-style: none;
  align-items: center;
}

.nav-links a {
  color: var(--muted);
  font-size: 0.95rem;
}

.nav-links a:hover {
  color: var(--text);
  text-decoration: none;
}

/* Hero */
.hero {
  padding: 96px 0 72px;
  text-align: center;
}

.hero h1 {
  font-size: clamp(2rem, 5vw, 3.2rem);
  line-height: 1.15;
  letter-spacing: -0.02em;
  margin-bottom: 18px;
}

.hero h1 .accent {
  background: linear-gradient(135deg, var(--primary), #8a5cff);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}

.hero p {
  font-size: 1.15rem;
  color: var(--muted);
  max-width: 620px;
  margin: 0 auto 32px;
}

.btn {
  display: inline-block;
  padding: 13px 26px;
  border-radius: 10px;
  font-weight: 600;
  font-size: 1rem;
  transition: transform 0.15s ease, background 0.15s ease;
}

.btn:hover {
  text-decoration: none;
  transform: translateY(-2px);
}

.btn-primary {
  background: var(--primary);
  color: #fff;
}

.btn-primary:hover {
  background: var(--primary-dark);
}

.btn-secondary {
  background: transparent;
  color: var(--text);
  border: 1px solid var(--border);
  margin-left: 12px;
}

/* Features */
.features {
  padding: 40px 0 80px;
}

.section-title {
  text-align: center;
  font-size: clamp(1.5rem, 3vw, 2rem);
  margin-bottom: 12px;
}

.section-subtitle {
  text-align: center;
  color: var(--muted);
  max-width: 560px;
  margin: 0 auto 48px;
}

.grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 22px;
}

.card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 28px 24px;
}

.card .icon {
  width: 44px;
  height: 44px;
  border-radius: 10px;
  background: rgba(79, 124, 255, 0.12);
  color: var(--primary);
  display: grid;
  place-items: center;
  font-size: 1.4rem;
  margin-bottom: 16px;
}

.card h3 {
  font-size: 1.15rem;
  margin-bottom: 8px;
}

.card p {
  color: var(--muted);
  font-size: 0.96rem;
}

/* CTA */
.cta {
  text-align: center;
  padding: 64px 0;
  border-top: 1px solid var(--border);
}

/* Legal pages */
.legal {
  padding: 64px 0 80px;
}

.legal h1 {
  font-size: clamp(1.8rem, 4vw, 2.6rem);
  margin-bottom: 8px;
}

.legal .updated {
  color: var(--muted);
  font-size: 0.9rem;
  margin-bottom: 36px;
}

.legal h2 {
  font-size: 1.3rem;
  margin: 34px 0 12px;
}

.legal p,
.legal li {
  color: #c9cdd9;
  margin-bottom: 12px;
}

.legal ul {
  padding-left: 22px;
}

.legal a {
  word-break: break-word;
}

.callout {
  background: var(--surface);
  border: 1px solid var(--border);
  border-left: 3px solid var(--primary);
  border-radius: 10px;
  padding: 18px 20px;
  margin: 24px 0;
}

/* Footer */
.site-footer {
  border-top: 1px solid var(--border);
  padding: 32px 0;
}

.footer-inner {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
  align-items: center;
  justify-content: space-between;
}

.footer-links {
  display: flex;
  flex-wrap: wrap;
  gap: 18px;
  list-style: none;
}

.footer-links a {
  color: var(--muted);
  font-size: 0.92rem;
}

.copyright {
  color: var(--muted);
  font-size: 0.9rem;
}

@media (max-width: 600px) {
  .nav-links {
    gap: 14px;
  }
  .nav-links a {
    font-size: 0.85rem;
  }
  .btn-secondary {
    margin-left: 0;
    margin-top: 12px;
    display: block;
  }
}