:root {
  --bg-0: #0a0c10;
  --bg-1: #11141b;
  --bg-2: #181c24;
  --bg-3: #20242e;
  --line: rgba(255, 255, 255, 0.08);
  --line-strong: rgba(255, 255, 255, 0.16);
  --text: #e8ecf3;
  --text-muted: #9aa3b2;
  --text-dim: #6c7484;
  --accent: #7cc4ff;
  --accent-2: #b388ff;
  --warn: #ffb86b;
  --danger: #ff6b6b;
  --ok: #6bd49a;
  --radius-sm: 8px;
  --radius-md: 14px;
  --radius-lg: 20px;
  --shadow-md: 0 6px 24px rgba(0, 0, 0, 0.35);
  --font-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", "Inter", "Helvetica Neue", Arial, "Noto Naskh Arabic", "Noto Sans Arabic", sans-serif;
  --font-mono: ui-monospace, SFMono-Regular, "JetBrains Mono", Menlo, Monaco, Consolas, monospace;
  --duration: 220ms;
}

* { box-sizing: border-box; }
html, body { height: 100%; }

body {
  margin: 0;
  background:
    radial-gradient(1200px 600px at 80% -200px, rgba(123, 196, 255, 0.10), transparent 60%),
    radial-gradient(900px 500px at -100px 110%, rgba(179, 136, 255, 0.10), transparent 60%),
    var(--bg-0);
  color: var(--text);
  font-family: var(--font-sans);
  font-size: 16px;
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
}

a { color: inherit; text-decoration: none; }
a:hover { color: var(--accent); }
button { font: inherit; cursor: pointer; }
input, select, textarea { font: inherit; color: inherit; }

.site-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-block: 18px;
  padding-inline: 28px;
  border-block-end: 1px solid var(--line);
  background: rgba(10, 12, 16, 0.6);
  backdrop-filter: saturate(140%) blur(8px);
  position: sticky;
  inset-block-start: 0;
  z-index: 50;
}
.brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  font-weight: 600;
  letter-spacing: 0.2px;
}
.brand-mark {
  width: 22px; height: 22px;
  border-radius: 50%;
  background: conic-gradient(from 220deg, #7cc4ff, #b388ff, #ffb86b, #6bd49a, #7cc4ff);
  box-shadow: 0 0 16px rgba(124, 196, 255, 0.45);
}
.brand-text { font-size: 16px; }
.site-nav a {
  margin-inline-start: 14px;
  color: var(--text-muted);
  font-size: 14px;
}
.site-nav a:hover { color: var(--text); }
.site-user {
  display: inline-block;
  max-width: 220px;
  margin-inline-start: 14px;
  color: var(--text);
  font-size: 14px;
  overflow: hidden;
  text-overflow: ellipsis;
  vertical-align: bottom;
  white-space: nowrap;
}

.site-main {
  max-width: 1200px;
  margin: 0 auto;
  padding-block: 36px;
  padding-inline: 28px;
}

.site-footer {
  text-align: center;
  color: var(--text-dim);
  font-size: 12px;
  padding-block: 24px;
}

@media (max-width: 720px) {
  .site-main { padding-block: 24px; padding-inline: 16px; }
  .site-header {
    position: static;
    padding-inline: 16px;
    backdrop-filter: none;
  }
  .site-nav {
    display: flex;
    align-items: center;
    gap: 10px;
  }
  .site-nav a,
  .site-user {
    margin-inline-start: 0;
  }
  .site-user {
    display: none;
  }
}