:root {
  --primary: #1a1a2e;
  --secondary: #16213e;
  --accent: #0f3460;
  --highlight: #e94560;
  --gold: #f5c518;
  --text: #e0e0e0;
  --bg: #0d1117;
  --card: #161b22;
  --border: #30363d;
  --green: #3fb950;
  --orange: #d29922;
  --blue: #58a6ff;
  --red: #f85149;
}
* { margin: 0; padding: 0; box-sizing: border-box; }
body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  background: var(--bg); color: var(--text); line-height: 1.7;
}
a { color: var(--blue); text-decoration: none; }
a:hover { text-decoration: underline; }

/* Navigation */
nav {
  position: fixed; top: 0; width: 100%; z-index: 100;
  background: rgba(13,17,23,0.95); backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--border); padding: 0 2rem;
  display: flex; align-items: center; height: 56px;
}
nav .logo { font-weight: 700; font-size: 1.2rem; color: var(--gold); }
nav .logo span { color: var(--text); font-weight: 400; }
nav .links { margin-left: auto; display: flex; gap: 1.5rem; }
nav .links a { color: var(--text); font-size: 0.9rem; }

/* Hero */
.hero {
  padding: 8rem 2rem 4rem; text-align: center;
  background: linear-gradient(135deg, var(--primary) 0%, var(--secondary) 50%, var(--accent) 100%);
  border-bottom: 1px solid var(--border);
}
.hero h1 { font-size: 3rem; margin-bottom: 0.5rem; }
.hero h1 span { color: var(--gold); }
.hero .tagline { font-size: 1.2rem; color: #aaa; max-width: 700px; margin: 0 auto 1.5rem; }
.hero .badges { display: flex; justify-content: center; gap: 0.75rem; flex-wrap: wrap; }
.badge {
  padding: 0.35rem 0.75rem; border-radius: 999px; font-size: 0.8rem;
  border: 1px solid var(--border); background: rgba(255,255,255,0.05);
}
.badge.green { border-color: var(--green); color: var(--green); }
.badge.blue { border-color: var(--blue); color: var(--blue); }
.badge.orange { border-color: var(--orange); color: var(--orange); }

/* Layout */
.container { max-width: 1100px; margin: 0 auto; padding: 0 2rem; }
section { padding: 3rem 0; border-bottom: 1px solid var(--border); }
h2 { font-size: 1.8rem; margin-bottom: 1.5rem; color: var(--gold); }
h3 { font-size: 1.3rem; margin: 1.5rem 0 0.75rem; color: #ddd; }
h4 { font-size: 1.1rem; margin: 1rem 0 0.5rem; color: #bbb; }
p { margin-bottom: 1rem; }

/* Cards */
.card-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(300px, 1fr)); gap: 1rem; }
.card {
  background: var(--card); border: 1px solid var(--border); border-radius: 8px;
  padding: 1.5rem; transition: border-color 0.2s;
}
.card:hover { border-color: var(--accent); }
.card h4 { margin-top: 0; color: var(--gold); }

/* Tables */
table {
  width: 100%; border-collapse: collapse; margin: 1rem 0;
  font-size: 0.9rem;
}
th, td { padding: 0.6rem 0.8rem; text-align: left; border-bottom: 1px solid var(--border); }
th { background: rgba(255,255,255,0.05); font-weight: 600; color: #ccc; }
tr:hover { background: rgba(255,255,255,0.02); }
td.mono { font-family: 'SF Mono', 'Fira Code', monospace; font-size: 0.85rem; }

/* Code */
pre {
  background: #1a1e26; border: 1px solid var(--border); border-radius: 6px;
  padding: 1rem; overflow-x: auto; margin: 1rem 0;
  font-size: 0.85rem; line-height: 1.5;
}
code {
  background: rgba(255,255,255,0.08); padding: 0.15rem 0.4rem;
  border-radius: 3px; font-size: 0.85rem;
}
pre code { background: none; padding: 0; }

/* Flow */
.flow { display: flex; align-items: center; justify-content: center; gap: 0.5rem; flex-wrap: wrap; margin: 1.5rem 0; }
.flow-step {
  background: var(--card); border: 1px solid var(--border); border-radius: 8px;
  padding: 0.75rem 1.25rem; text-align: center; font-size: 0.85rem;
}
.flow-arrow { color: var(--accent); font-size: 1.2rem; }

/* Status indicators */
.status { display: inline-block; padding: 0.2rem 0.5rem; border-radius: 4px; font-size: 0.75rem; font-weight: 600; }
.status.done { background: rgba(63,185,80,0.2); color: var(--green); }
.status.new { background: rgba(210,153,34,0.2); color: var(--orange); }
.status.pending { background: rgba(248,81,73,0.2); color: var(--red); }
.status.planned { background: rgba(88,166,255,0.2); color: var(--blue); }

/* Alert boxes */
.alert {
  padding: 1rem; border-radius: 6px; margin: 1rem 0;
  border-left: 4px solid;
}
.alert.info { background: rgba(88,166,255,0.1); border-color: var(--blue); }
.alert.warn { background: rgba(210,153,34,0.1); border-color: var(--orange); }
.alert.done { background: rgba(63,185,80,0.1); border-color: var(--green); }

/* Tabs */
.tabs { display: flex; gap: 0; margin: 1rem 0; border-bottom: 1px solid var(--border); }
.tab-btn {
  padding: 0.6rem 1.2rem; border: 1px solid transparent; border-bottom: none;
  border-radius: 6px 6px 0 0; cursor: pointer; font-size: 0.9rem;
  background: transparent; color: var(--text);
}
.tab-btn.active { background: var(--card); border-color: var(--border); color: var(--gold); }
.tab-content { display: none; padding: 1.5rem; background: var(--card); border: 1px solid var(--border); border-top: none; border-radius: 0 0 8px 8px; }
.tab-content.active { display: block; }

/* Buttons */
.btn {
  display: inline-block; padding: 0.6rem 1.5rem; border-radius: 6px;
  font-size: 0.9rem; font-weight: 600; cursor: pointer;
  border: 1px solid var(--border); background: var(--accent); color: var(--text);
  transition: background 0.2s, border-color 0.2s;
}
.btn:hover { background: #1a4a7a; border-color: var(--gold); text-decoration: none; }
.btn-gold { background: var(--gold); color: #000; border-color: var(--gold); }
.btn-gold:hover { background: #d4a800; }
.btn-outline { background: transparent; border-color: var(--blue); color: var(--blue); }
.btn-outline:hover { background: rgba(88,166,255,0.1); }
.btn-red { background: var(--red); border-color: var(--red); }
.btn-red:hover { background: #d8382e; }
.btn-block { display: block; width: 100%; text-align: center; }

/* Form */
.form-group { margin-bottom: 1rem; }
.form-group label { display: block; margin-bottom: 0.3rem; color: #aaa; font-size: 0.85rem; }
.form-input {
  width: 100%; padding: 0.7rem 0.9rem; border-radius: 6px;
  border: 1px solid var(--border); background: var(--card); color: var(--text);
  font-size: 0.95rem; font-family: inherit;
}
.form-input:focus { outline: none; border-color: var(--gold); }
.form-input::placeholder { color: #555; }

/* Auth page specific */
.auth-section { min-height: 100vh; display: flex; align-items: center; justify-content: center; padding: 6rem 1rem 2rem; }
.auth-box {
  background: var(--card); border: 1px solid var(--border); border-radius: 12px;
  padding: 2.5rem; width: 100%; max-width: 420px;
}
.auth-box h2 { text-align: center; margin-bottom: 0.5rem; }
.auth-box .subtitle { text-align: center; color: #888; font-size: 0.9rem; margin-bottom: 1.5rem; }
.auth-tabs { display: flex; margin-bottom: 1.5rem; border-bottom: 1px solid var(--border); }
.auth-tab {
  flex: 1; padding: 0.6rem; text-align: center; cursor: pointer;
  border-bottom: 2px solid transparent; color: #888; font-weight: 600; font-size: 0.9rem;
}
.auth-tab.active { color: var(--gold); border-bottom-color: var(--gold); }
.auth-form { display: none; }
.auth-form.active { display: block; }
.auth-divider { text-align: center; color: #555; font-size: 0.85rem; margin: 1rem 0; position: relative; }
.auth-divider::before, .auth-divider::after {
  content: ''; position: absolute; top: 50%; width: 42%; height: 1px; background: var(--border);
}
.auth-divider::before { left: 0; }
.auth-divider::after { right: 0; }
.social-login { display: flex; gap: 0.5rem; }
.social-login .btn { flex: 1; text-align: center; font-size: 0.85rem; padding: 0.5rem; }

/* Social links */
.social-grid { display: flex; gap: 0.75rem; flex-wrap: wrap; justify-content: center; }

/* Footer */
footer {
  text-align: center; padding: 3rem 2rem; color: #666; font-size: 0.85rem;
}

/* Responsive */
@media (max-width: 768px) {
  nav .links { display: none; }
  .hero h1 { font-size: 2rem; }
  .card-grid { grid-template-columns: 1fr; }
  .flow { flex-direction: column; }
  .flow-arrow { transform: rotate(90deg); }
}