:root {
  --bg: #0b0d12;
  --panel: #0f131a;
  --muted: #9aa4b2;
  --text: #e6e9ee;
  --primary: #6ea8fe;
  --primary-600: #4c8efb;
  --border: #1d2430;
  --glow: 0 10px 30px rgba(110,168,254,0.35);
}

@media (prefers-color-scheme: light) {
  :root {
    --bg: #f7f9fc;
    --panel: #ffffff;
    --muted: #5b6573;
    --text: #0f141c;
    --primary: #2d6df6;
    --primary-600: #2156c7;
    --border: #e7eef7;
    --glow: 0 10px 30px rgba(45,109,246,0.22);
  }
}

* {
  box-sizing: border-box;
}

html,
body {
  min-height: 100%;
}

body {
  margin: 0;
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, Segoe UI, Roboto, Helvetica, Arial,
    "Apple Color Emoji", "Segoe UI Emoji";
  color: var(--text);
  background-color: var(--bg);
  background-image:
    radial-gradient(1200px 800px at 20% -10%, rgba(110,168,254,0.15), transparent 60%),
    radial-gradient(1200px 800px at 90% 10%, rgba(95,225,188,0.12), transparent 60%);
  background-attachment: fixed;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  color-scheme: light dark;
}

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

.container {
  width: min(1200px, 92vw);
  margin: 0 auto;
}

.contact-page,
.support-page,
.legal-page {
  width: min(720px, 92vw);
  margin: 0 auto;
}

header {
  position: sticky;
  top: 0;
  z-index: 50;
  backdrop-filter: saturate(180%) blur(10px);
  background: color-mix(in oklab, var(--bg) 75%, transparent);
  border-bottom: 1px solid var(--border);
}

.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 14px 0;
}

nav ul {
  list-style: none;
  padding: 0;
  margin: 0;
  display: flex;
  gap: 18px;
}

nav a {
  color: var(--muted);
  font-weight: 500;
  transition: color 0.2s;
}

nav a:hover,
nav a[aria-current="page"] {
  color: var(--text);
}

.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 700;
  letter-spacing: 0.2px;
}

.logo {
  width: 28px;
  height: 28px;
  display: grid;
  place-items: center;
  border-radius: 8px;
  background: linear-gradient(135deg, var(--primary), #5fe1bc);
  box-shadow: var(--glow);
  color: #0b1020;
  font-weight: 800;
}

.panel {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 24px;
  box-shadow: 0 10px 40px rgba(0, 0, 0, 0.15);
}

.page-header {
  text-align: center;
  margin-bottom: 48px;
}

.page-header h1 {
  font-size: clamp(32px, 5vw, 42px);
  margin: 0 0 12px;
}

.page-header p {
  color: var(--muted);
  font-size: 18px;
  margin: 0;
}

.muted {
  color: var(--muted);
}

.btn {
  display: inline-block;
  padding: 12px 18px;
  border-radius: 10px;
  border: 1px solid var(--border);
  font-weight: 600;
  transition: all 0.2s;
  background: var(--panel);
}

.btn:hover {
  background: color-mix(in oklab, var(--panel), var(--text) 6%);
}

.btn.secondary {
  background: var(--panel);
}

.btn.primary {
  background: linear-gradient(180deg, var(--primary), var(--primary-600));
  color: white;
  border: none;
  box-shadow: var(--glow);
}

.btn.primary:hover {
  filter: brightness(1.05);
  transform: translateY(-1px);
}

.card {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 14px;
  padding: 24px;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.12);
  transition: all 0.3s;
}

.card:hover {
  border-color: color-mix(in oklab, var(--border), var(--primary) 30%);
  transform: translateY(-2px);
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
}

.card-icon {
  width: 48px;
  height: 48px;
  border-radius: 12px;
  background: linear-gradient(135deg, rgba(110,168,254,0.2), rgba(95,225,188,0.15));
  display: grid;
  place-items: center;
  margin-bottom: 16px;
}

footer {
  border-top: 1px solid var(--border);
  color: var(--muted);
}

footer .container {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 12px;
  padding: 18px 0;
  flex-wrap: wrap;
}

footer .link-row {
  display: flex;
  align-items: center;
  gap: 12px;
}

@media (max-width: 720px) {
  .nav {
    flex-direction: column;
    align-items: stretch;
    gap: 12px;
  }

  header nav ul {
    flex-wrap: wrap;
    justify-content: center;
    gap: 12px;
  }

  header nav a {
    display: block;
    width: 100%;
    text-align: center;
    padding: 8px 0;
  }
}