/* nuvyvpn site stylesheet — self-hosted, no third-party resources */
:root {
  --bg: #0b1020;
  --bg-soft: #111830;
  --surface: #161f3a;
  --text: #e8ecf6;
  --text-muted: #9aa5c0;
  --accent: #4f7cff;
  --accent-soft: #2c3f7a;
  --border: #263150;
  --maxw: 1080px;
  --radius: 12px;
}

* { box-sizing: border-box; }

html { -webkit-text-size-adjust: 100%; }

body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC",
    "Hiragino Sans GB", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.7;
}

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

img { max-width: 100%; height: auto; }

.wrap {
  max-width: var(--maxw);
  margin: 0 auto;
  padding: 0 20px;
}

/* ---------- header / nav ---------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 10;
  background: rgba(11, 16, 32, 0.92);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--border);
}

.nav {
  display: flex;
  align-items: center;
  gap: 24px;
  padding: 14px 20px;
  max-width: var(--maxw);
  margin: 0 auto;
  flex-wrap: wrap;
}

.nav .brand {
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 700;
  font-size: 1.1rem;
  color: var(--text);
  margin-right: auto;
}
.nav .brand:hover { text-decoration: none; }
.nav .brand img { width: 30px; height: 30px; border-radius: 7px; }

.nav a.nav-link { color: var(--text-muted); font-size: 0.95rem; }
.nav a.nav-link:hover { color: var(--text); text-decoration: none; }

.btn {
  display: inline-block;
  background: var(--accent);
  color: #fff !important;
  padding: 9px 20px;
  border-radius: 999px;
  font-weight: 600;
  font-size: 0.95rem;
}
.btn:hover { background: #3d68e8; text-decoration: none; }
.btn-outline {
  background: transparent;
  border: 1px solid var(--accent);
  color: var(--accent) !important;
}
.btn-outline:hover { background: var(--accent-soft); }

/* ---------- hero ---------- */
.hero {
  padding: 88px 20px 72px;
  text-align: center;
  background: radial-gradient(ellipse at 50% -20%, #1d2b57 0%, var(--bg) 60%);
}
.hero img.app-icon {
  width: 108px;
  height: 108px;
  border-radius: 26px;
  box-shadow: 0 12px 40px rgba(79, 124, 255, 0.35);
}
.hero h1 {
  font-size: 2.6rem;
  margin: 26px 0 12px;
  letter-spacing: 0.5px;
}
.hero .tagline {
  font-size: 1.25rem;
  color: var(--text-muted);
  max-width: 620px;
  margin: 0 auto 34px;
}
.hero .cta-row { display: flex; gap: 14px; justify-content: center; flex-wrap: wrap; }
.hero .btn { padding: 13px 30px; font-size: 1.05rem; }

/* ---------- sections ---------- */
.section { padding: 64px 20px; }
.section h2 {
  font-size: 1.7rem;
  text-align: center;
  margin: 0 0 40px;
}
.section-alt { background: var(--bg-soft); }

.features {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 22px;
}
.feature {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 26px 24px;
}
.feature h3 { margin: 0 0 10px; font-size: 1.1rem; }
.feature p { margin: 0; color: var(--text-muted); font-size: 0.95rem; }
.feature .glyph { font-size: 1.6rem; display: block; margin-bottom: 12px; }

.regions { display: flex; gap: 14px; justify-content: center; flex-wrap: wrap; }
.region-chip {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 999px;
  padding: 10px 22px;
  font-weight: 600;
}

/* ---------- article (policy pages) ---------- */
.article {
  max-width: 760px;
  margin: 0 auto;
  padding: 56px 20px 72px;
}
.article h1 { font-size: 2rem; margin: 0 0 8px; }
.article .meta {
  color: var(--text-muted);
  font-size: 0.9rem;
  border-bottom: 1px solid var(--border);
  padding-bottom: 22px;
  margin-bottom: 30px;
}
.article h2 {
  font-size: 1.3rem;
  margin: 40px 0 14px;
  padding-top: 8px;
}
.article h3 { font-size: 1.05rem; margin: 26px 0 8px; }
.article p { margin: 0 0 16px; }
.article ul { margin: 0 0 16px; padding-left: 24px; }
.article li { margin-bottom: 8px; }
.article a { word-break: break-all; }

/* ---------- faq ---------- */
.faq-item {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 20px 24px;
  margin-bottom: 14px;
}
.faq-item h3 { margin: 0 0 8px; font-size: 1.02rem; }
.faq-item p { margin: 0; color: var(--text-muted); font-size: 0.95rem; }

/* ---------- footer ---------- */
.site-footer {
  border-top: 1px solid var(--border);
  background: var(--bg-soft);
  padding: 40px 20px 48px;
  margin-top: 40px;
}
.footer-inner {
  max-width: var(--maxw);
  margin: 0 auto;
  display: flex;
  flex-wrap: wrap;
  gap: 20px 40px;
  align-items: flex-start;
  justify-content: space-between;
}
.footer-links { display: flex; gap: 22px; flex-wrap: wrap; }
.footer-links a { color: var(--text-muted); font-size: 0.92rem; }
.footer-links a:hover { color: var(--text); }
.footer-legal {
  color: var(--text-muted);
  font-size: 0.85rem;
  max-width: 480px;
}
.footer-legal p { margin: 4px 0; }

/* ---------- market ---------- */
.store-hero { text-align: center; padding: 72px 20px 56px; }
.store-hero img.app-icon {
  width: 132px; height: 132px; border-radius: 30px;
  box-shadow: 0 14px 46px rgba(79, 124, 255, 0.4);
}
.spec-list {
  list-style: none;
  padding: 0;
  max-width: 520px;
  margin: 0 auto;
}
.spec-list li {
  display: flex;
  justify-content: space-between;
  gap: 16px;
  padding: 12px 4px;
  border-bottom: 1px solid var(--border);
  font-size: 0.95rem;
}
.spec-list li span:first-child { color: var(--text-muted); }

/* ---------- api minimal ---------- */
.api-min {
  min-height: 70vh;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: 40px 20px;
}
.api-min .code {
  font-family: ui-monospace, SFMono-Regular, Menlo, monospace;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 14px 20px;
  display: inline-block;
  margin-top: 18px;
  font-size: 0.9rem;
  color: var(--text-muted);
}

@media (max-width: 640px) {
  .hero { padding: 56px 20px 48px; }
  .hero h1 { font-size: 2rem; }
  .hero .tagline { font-size: 1.05rem; }
  .section { padding: 44px 20px; }
  .nav { gap: 14px; }
  .article { padding: 40px 20px 56px; }
}