:root {
  --color-primary: #6c5ce7;
  --color-primary-dark: #5641d8;
  --color-accent: #00c6a2;
  --color-bg: #0f1020;
  --color-bg-alt: #16172c;
  --color-text: #f4f4f8;
  --color-text-muted: #b6b6c9;
  --radius: 14px;
  --max-width: 1100px;
}

* { box-sizing: border-box; }

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

a { color: inherit; text-decoration: none; }

.container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 24px;
}

/* Header */
.site-header {
  background: rgba(15, 16, 32, 0.9);
  backdrop-filter: blur(6px);
  position: sticky;
  top: 0;
  z-index: 10;
  border-bottom: 1px solid rgba(255,255,255,0.06);
}

.nav-wrap {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 16px 24px;
}

.brand { display: flex; align-items: center; gap: 10px; font-weight: 700; font-size: 1.25rem; }

.brand-logo {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 34px;
  height: 34px;
  border-radius: 10px;
  background: linear-gradient(135deg, var(--color-primary), var(--color-accent));
  color: #fff;
  font-weight: 800;
}

.brand-logo.small { width: 26px; height: 26px; font-size: 0.85rem; margin-right: 6px; }

.main-nav { display: flex; gap: 24px; }
.main-nav a { color: var(--color-text-muted); font-weight: 500; transition: color .2s; }
.main-nav a:hover, .main-nav a.active { color: #fff; }

/* Hero */
.hero {
  padding: 80px 0 60px;
  text-align: center;
  background: radial-gradient(ellipse at top, rgba(108,92,231,0.25), transparent 60%);
}

.hero h1 {
  font-size: clamp(2rem, 5vw, 3.2rem);
  margin: 0 0 16px;
}

.hero p.lead {
  color: var(--color-text-muted);
  max-width: 640px;
  margin: 0 auto 32px;
  font-size: 1.1rem;
}

.btn {
  display: inline-block;
  padding: 14px 28px;
  border-radius: 999px;
  font-weight: 600;
  transition: transform .2s, background .2s;
}

.btn-primary {
  background: linear-gradient(135deg, var(--color-primary), var(--color-primary-dark));
  color: #fff;
}

.btn-primary:hover { transform: translateY(-2px); }

.btn-outline {
  border: 1px solid rgba(255,255,255,0.25);
  color: var(--color-text);
  margin-left: 12px;
}

.btn-outline:hover { background: rgba(255,255,255,0.08); }

/* Sections */
section { padding: 60px 0; }
section.alt { background: var(--color-bg-alt); }

h2.section-title {
  text-align: center;
  font-size: 2rem;
  margin-bottom: 12px;
}

p.section-subtitle {
  text-align: center;
  color: var(--color-text-muted);
  max-width: 600px;
  margin: 0 auto 40px;
}

.grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 24px;
}

.card {
  background: var(--color-bg-alt);
  border: 1px solid rgba(255,255,255,0.06);
  border-radius: var(--radius);
  padding: 28px;
}

.card .icon {
  width: 46px;
  height: 46px;
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(108,92,231,0.15);
  color: var(--color-accent);
  font-size: 1.4rem;
  margin-bottom: 16px;
}

.card h3 { margin: 0 0 8px; font-size: 1.15rem; }
.card p { color: var(--color-text-muted); margin: 0; font-size: 0.95rem; }

/* Content pages (privacy, about) */
.page-content {
  max-width: 820px;
  margin: 0 auto;
  padding: 48px 24px 80px;
}

.page-content h1 { font-size: 2.2rem; margin-bottom: 8px; }
.page-content .updated { color: var(--color-text-muted); font-size: 0.9rem; margin-bottom: 36px; }
.page-content h2 { margin-top: 36px; font-size: 1.4rem; color: var(--color-accent); }
.page-content p, .page-content li { color: var(--color-text-muted); }
.page-content ul { padding-left: 20px; }
.page-content table { width: 100%; border-collapse: collapse; margin: 20px 0; }
.page-content th, .page-content td {
  text-align: left;
  padding: 10px 12px;
  border-bottom: 1px solid rgba(255,255,255,0.08);
  color: var(--color-text-muted);
  font-size: 0.95rem;
}
.page-content th { color: #fff; }

/* Contact form */
.form-box {
  max-width: 560px;
  margin: 0 auto;
  background: var(--color-bg-alt);
  padding: 32px;
  border-radius: var(--radius);
  border: 1px solid rgba(255,255,255,0.06);
}

.form-group { margin-bottom: 18px; }
.form-group label { display: block; margin-bottom: 6px; font-weight: 600; font-size: 0.9rem; }
.form-group input, .form-group textarea {
  width: 100%;
  padding: 12px 14px;
  border-radius: 8px;
  border: 1px solid rgba(255,255,255,0.15);
  background: rgba(255,255,255,0.04);
  color: #fff;
  font-family: inherit;
}

.alert {
  padding: 14px 18px;
  border-radius: 10px;
  margin-bottom: 20px;
  font-size: 0.95rem;
}
.alert-success { background: rgba(0,198,162,0.15); border: 1px solid rgba(0,198,162,0.4); }
.alert-error { background: rgba(231,76,60,0.15); border: 1px solid rgba(231,76,60,0.4); }

/* Footer */
.site-footer {
  border-top: 1px solid rgba(255,255,255,0.06);
  padding: 40px 0;
  background: var(--color-bg-alt);
}

.footer-wrap {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 24px;
}

.footer-nav { display: flex; gap: 18px; flex-wrap: wrap; }
.footer-nav a { color: var(--color-text-muted); font-size: 0.9rem; }
.footer-nav a:hover { color: #fff; }

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