/* EVO-AI · 分布式自进化大模型 · 公网接入窗口 */

* { box-sizing: border-box; margin: 0; padding: 0; }

:root {
  --bg: #0a0e1a;
  --bg-2: #111726;
  --bg-3: #1a2236;
  --fg: #e6edf3;
  --fg-dim: #8b97a8;
  --accent: #4d9fff;
  --accent-2: #a87fff;
  --accent-3: #4dffaf;
  --danger: #ff5577;
  --border: #1f2a40;
  --gradient: linear-gradient(135deg, #4d9fff 0%, #a87fff 50%, #ff5599 100%);
  --gradient-soft: linear-gradient(135deg, rgba(77,159,255,0.15) 0%, rgba(168,127,255,0.15) 100%);
}

body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Microsoft YaHei", sans-serif;
  background: var(--bg);
  color: var(--fg);
  line-height: 1.6;
  font-size: 15px;
  -webkit-font-smoothing: antialiased;
}

a { color: var(--accent); text-decoration: none; transition: 0.2s; }
a:hover { color: var(--accent-2); }

/* Auto badge */
.auto-badge {
  display: inline-block;
  background: linear-gradient(90deg, #4dffaf, #4d9fff);
  color: #0a0e1a;
  padding: 4px 12px;
  border-radius: 20px;
  font-size: 13px;
  font-weight: 700;
  margin-left: 12px;
  animation: pulse 2s ease-in-out infinite;
  vertical-align: middle;
}

/* Trajectory */
.trajectory {
  margin-top: 32px;
  padding: 24px;
  background: var(--bg-2);
  border: 1px solid var(--border);
  border-radius: 12px;
}
.trajectory h3 { margin-bottom: 16px; font-size: 16px; color: var(--fg-dim); }
.trajectory-bars {
  display: flex;
  flex-direction: column;
  gap: 6px;
  font-family: 'SF Mono', monospace;
  font-size: 12px;
}
.traj-row {
  display: flex;
  align-items: center;
  gap: 12px;
}
.traj-label { width: 80px; color: var(--fg-dim); }
.traj-bar {
  flex: 1;
  height: 18px;
  background: var(--bg);
  border-radius: 4px;
  overflow: hidden;
  position: relative;
}
.traj-fill {
  height: 100%;
  background: linear-gradient(90deg, #4dffaf, #4d9fff);
  transition: width 0.5s;
}
.traj-value { width: 80px; text-align: right; color: var(--accent-3); }

/* Network */
.network-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 16px;
  margin-bottom: 32px;
}
.network-card {
  background: var(--bg-3);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 24px;
  transition: 0.2s;
}
.network-card:hover { border-color: var(--accent); transform: translateY(-2px); }
.net-icon { font-size: 32px; margin-bottom: 12px; }
.network-card h3 { color: var(--accent); margin-bottom: 8px; font-size: 16px; }
.network-card p { color: var(--fg-dim); font-size: 13px; margin-bottom: 12px; }
.net-id {
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 4px;
  padding: 6px 10px;
  font-family: 'SF Mono', monospace;
  font-size: 11px;
  color: var(--accent-3);
  margin-bottom: 12px;
  word-break: break-all;
}

.join-flow {
  background: var(--gradient-soft);
  border: 1px solid var(--accent);
  border-radius: 12px;
  padding: 32px;
  margin-bottom: 32px;
}
.join-flow h3 { color: var(--accent); margin-bottom: 16px; }
.join-flow ol { padding-left: 24px; }
.join-flow li { margin-bottom: 12px; color: var(--fg); line-height: 1.7; }
.join-flow code {
  background: var(--bg);
  padding: 2px 6px;
  border-radius: 4px;
  font-family: 'SF Mono', monospace;
  font-size: 12px;
  color: var(--accent-3);
}

/* Header */
header {
  position: sticky; top: 0; z-index: 100;
  display: flex; align-items: center; justify-content: space-between;
  padding: 16px 32px;
  background: rgba(10, 14, 26, 0.85);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
}
.logo { display: flex; align-items: baseline; gap: 10px; }
.logo-mark {
  font-size: 24px; color: var(--accent);
  animation: pulse 3s ease-in-out infinite;
}
.logo-text { font-weight: 700; font-size: 18px; letter-spacing: 0.5px; }
.logo-sub { color: var(--fg-dim); font-size: 12px; }
nav { display: flex; gap: 24px; }
nav a { color: var(--fg-dim); font-size: 14px; }
nav a:hover { color: var(--accent); }

/* Hero */
.hero {
  position: relative;
  min-height: 70vh;
  display: flex; align-items: center; justify-content: center;
  text-align: center;
  padding: 80px 32px;
  overflow: hidden;
}
.hero-bg {
  position: absolute; inset: 0;
  background:
    radial-gradient(ellipse 600px 400px at 30% 30%, rgba(77,159,255,0.18), transparent),
    radial-gradient(ellipse 500px 400px at 70% 70%, rgba(168,127,255,0.18), transparent),
    radial-gradient(ellipse 400px 300px at 50% 50%, rgba(77,255,175,0.08), transparent);
  z-index: -1;
}
.hero-bg::before {
  content: '';
  position: absolute; inset: 0;
  background-image:
    linear-gradient(rgba(77,159,255,0.04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(77,159,255,0.04) 1px, transparent 1px);
  background-size: 40px 40px;
  z-index: -1;
}
.hero-content { max-width: 800px; }
.hero h1 {
  font-size: 56px; font-weight: 800; line-height: 1.1;
  background: var(--gradient);
  -webkit-background-clip: text; background-clip: text;
  -webkit-text-fill-color: transparent;
  margin-bottom: 16px;
}
.tagline { font-size: 22px; color: var(--fg); margin-bottom: 8px; font-weight: 500; }
.sub { color: var(--fg-dim); font-size: 16px; margin-bottom: 32px; }
.hero-cta { display: flex; gap: 16px; justify-content: center; }

/* Buttons */
.btn {
  display: inline-block;
  padding: 12px 24px;
  border-radius: 8px;
  font-weight: 600;
  cursor: pointer;
  border: none;
  font-size: 14px;
  transition: all 0.2s;
  font-family: inherit;
}
.btn-primary {
  background: var(--gradient);
  color: white;
  box-shadow: 0 4px 16px rgba(77,159,255,0.3);
}
.btn-primary:hover { transform: translateY(-1px); box-shadow: 0 6px 20px rgba(77,159,255,0.4); }
.btn-ghost {
  background: transparent;
  color: var(--fg);
  border: 1px solid var(--border);
}
.btn-ghost:hover { background: var(--bg-2); border-color: var(--accent); }
.btn.big { padding: 14px 32px; font-size: 16px; }
.btn.small { padding: 6px 12px; font-size: 12px; }
.btn:disabled { opacity: 0.5; cursor: not-allowed; }

/* Sections */
.section {
  padding: 80px 32px;
  max-width: 1200px;
  margin: 0 auto;
}
.section.dark { background: var(--bg-2); max-width: none; }
.section.dark > * { max-width: 1200px; margin-left: auto; margin-right: auto; }
.section h2 { font-size: 32px; margin-bottom: 16px; }
.section-desc { color: var(--fg-dim); margin-bottom: 32px; max-width: 700px; }

/* Status grid */
.status-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: 16px;
  margin-bottom: 24px;
}
.stat-card {
  background: var(--bg-2);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 24px;
  transition: 0.2s;
}
.stat-card:hover { border-color: var(--accent); transform: translateY(-2px); }
.stat-label { color: var(--fg-dim); font-size: 12px; text-transform: uppercase; letter-spacing: 1px; margin-bottom: 8px; }
.stat-value { font-size: 32px; font-weight: 700; color: var(--accent-3); font-family: 'SF Mono', monospace; }
.stat-foot { color: var(--fg-dim); font-size: 12px; margin-top: 8px; }
.status-note { color: var(--fg-dim); font-size: 14px; font-style: italic; }

/* Interact */
.interact-panel {
  background: var(--bg-3);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 32px;
  margin-bottom: 32px;
}
.form-row { margin-bottom: 20px; }
.form-row label { display: block; color: var(--fg-dim); font-size: 13px; margin-bottom: 8px; }
.form-row select, .form-row input {
  width: 100%; padding: 10px 14px;
  background: var(--bg); color: var(--fg);
  border: 1px solid var(--border);
  border-radius: 6px;
  font-size: 14px;
  font-family: inherit;
}
.form-row input { margin-top: 8px; }

.gen-output {
  margin-top: 24px;
  padding: 20px;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 8px;
}
.gen-output.hidden { display: none; }
.gen-label { color: var(--fg-dim); font-size: 12px; margin-bottom: 12px; text-transform: uppercase; }
#gen-text {
  background: var(--bg-2);
  padding: 16px;
  border-radius: 6px;
  font-family: 'SF Mono', 'Cascadia Code', monospace;
  font-size: 14px;
  white-space: pre-wrap;
  color: var(--fg);
  margin-bottom: 16px;
  max-height: 300px;
  overflow-y: auto;
}
.rate-row { display: flex; align-items: center; gap: 16px; margin-bottom: 16px; }
.rate-label { color: var(--fg-dim); font-size: 14px; }
.stars { font-size: 28px; cursor: pointer; user-select: none; }
.stars span { color: var(--border); transition: 0.1s; margin-right: 4px; }
.stars span.active, .stars span:hover { color: #ffbb33; }
.rate-hint { color: var(--fg-dim); font-size: 13px; }

/* Eval log */
.eval-log h3 { margin-bottom: 16px; font-size: 18px; }
#eval-entries { display: grid; gap: 12px; }
.eval-entry {
  background: var(--bg-2);
  border: 1px solid var(--border);
  border-left: 3px solid var(--accent);
  border-radius: 6px;
  padding: 12px 16px;
  font-size: 13px;
}
.eval-entry .e-prompt { color: var(--accent); font-weight: 600; }
.eval-entry .e-score { color: var(--accent-3); margin-left: 12px; }
.eval-entry .e-time { color: var(--fg-dim); font-size: 11px; margin-left: 12px; }
.eval-entry .e-text { color: var(--fg-dim); font-size: 12px; margin-top: 6px; font-family: 'SF Mono', monospace; }

/* Nodes */
.node-self { margin-bottom: 40px; text-align: center; }
.node-self-card {
  display: inline-block;
  background: var(--gradient-soft);
  border: 1px solid var(--accent);
  border-radius: 12px;
  padding: 24px 40px;
}
.node-id-label { color: var(--fg-dim); font-size: 12px; margin-bottom: 8px; text-transform: uppercase; }
.node-id { font-size: 22px; font-weight: 700; color: var(--accent-3); font-family: 'SF Mono', monospace; margin-bottom: 12px; }

.leaderboard table { width: 100%; border-collapse: collapse; }
.leaderboard th, .leaderboard td { padding: 12px 16px; text-align: left; border-bottom: 1px solid var(--border); }
.leaderboard th { color: var(--fg-dim); font-size: 12px; text-transform: uppercase; }
.leaderboard tr.empty td { text-align: center; color: var(--fg-dim); padding: 32px; }

/* Lineage */
.lineage-tree {
  background: var(--bg-3);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 32px;
  font-family: 'SF Mono', monospace;
}
.lineage-node {
  background: var(--bg);
  border: 1px solid var(--accent);
  border-radius: 8px;
  padding: 16px 20px;
  margin-bottom: 8px;
}
.lineage-node.child { border-color: var(--accent-2); margin-left: 32px; }
.lineage-node.next { border-color: var(--accent-3); margin-left: 64px; opacity: 0.5; border-style: dashed; }
.lineage-id { font-weight: 700; color: var(--accent-3); font-size: 16px; }
.lineage-meta { color: var(--fg-dim); font-size: 12px; margin-top: 4px; }
.lineage-arrow { color: var(--fg-dim); font-size: 12px; padding: 8px 0 8px 16px; }

/* About */
.about-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 20px;
  margin-bottom: 40px;
}
.about-card {
  background: var(--bg-2);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 24px;
}
.about-card h3 { color: var(--accent); margin-bottom: 12px; font-size: 18px; }
.about-card p { color: var(--fg-dim); font-size: 14px; }
.join-cta {
  background: var(--gradient-soft);
  border: 1px solid var(--accent);
  border-radius: 12px;
  padding: 32px;
}
.join-cta h3 { color: var(--accent); margin-bottom: 16px; }
.join-cta ol { padding-left: 24px; margin-bottom: 16px; }
.join-cta li { margin-bottom: 8px; color: var(--fg); }
.cta-strong { color: var(--accent-3); font-weight: 700; font-size: 18px; }

/* Footer */
footer {
  border-top: 1px solid var(--border);
  padding: 32px;
  background: var(--bg-2);
  text-align: center;
  color: var(--fg-dim);
  font-size: 13px;
}
.footer-row { display: flex; justify-content: space-between; max-width: 1200px; margin: 0 auto; flex-wrap: wrap; gap: 16px; }
.footer-links { display: flex; gap: 24px; }

@keyframes pulse {
  0%, 100% { transform: scale(1); opacity: 1; }
  50% { transform: scale(1.1); opacity: 0.7; }
}

@media (max-width: 768px) {
  header { padding: 12px 16px; flex-direction: column; gap: 12px; }
  nav { gap: 16px; flex-wrap: wrap; justify-content: center; }
  .hero h1 { font-size: 36px; }
  .tagline { font-size: 18px; }
  .section { padding: 48px 16px; }
}