/* ====================================================================
 * FCU 2026 Leaderboard · Shared CSS
 * Theme: Terminal + East Asian seal · matches handbook design
 * ==================================================================== */

:root {
  --bg: #0E1014;
  --bg2: #161A21;
  --bg3: #1F2530;
  --line: #3A3F4B;
  --line-dim: #242934;
  --text: #E6E6E6;
  --text-dim: #9AA0A8;
  --text-ghost: #5A6270;
  --green: #00FF88;
  --green-glow: rgba(0, 255, 136, 0.15);
  --orange: #FF6B35;
  --orange-glow: rgba(255, 107, 53, 0.15);
  --red: #FF3355;
  --gold: #E8C56A;
  --gold-glow: rgba(232, 197, 106, 0.2);
  --blue: #3B82F6;
  --purple: #A78BFA;
}

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

html, body {
  background: var(--bg);
  color: var(--text);
  font-family: 'Inter', -apple-system, 'Noto Sans SC', sans-serif;
  font-size: 14px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  min-height: 100vh;
}

/* CRT / Terminal background */
body {
  background:
    radial-gradient(ellipse at top, rgba(0, 255, 136, 0.03) 0%, transparent 50%),
    radial-gradient(ellipse at bottom, rgba(255, 107, 53, 0.03) 0%, transparent 50%),
    var(--bg);
  background-attachment: fixed;
}

/* Scanline overlay */
body::after {
  content: "";
  position: fixed;
  top: 0; left: 0; right: 0; bottom: 0;
  pointer-events: none;
  background: repeating-linear-gradient(
    0deg,
    transparent 0px,
    rgba(255, 255, 255, 0.01) 1px,
    transparent 2px
  );
  z-index: 9999;
}

/* === Typography === */
.mono { font-family: 'JetBrains Mono', 'SF Mono', Consolas, monospace; }
.serif-cn { font-family: 'Noto Serif SC', serif; }
.hand-cn { font-family: 'Ma Shan Zheng', serif; }

h1, h2, h3, h4 {
  font-family: 'JetBrains Mono', monospace;
  font-weight: 800;
  letter-spacing: 0.02em;
}

/* === Top bar === */
.topbar {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(14, 16, 20, 0.85);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--line);
}
.topbar-inner {
  max-width: 1200px;
  margin: 0 auto;
  padding: 12px 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}
.brand {
  font-family: 'JetBrains Mono', monospace;
  font-size: 14px;
  font-weight: 800;
  color: var(--text);
  display: flex;
  align-items: center;
  gap: 8px;
  text-decoration: none;
}
.brand .dot { color: var(--green); }
.brand .zh { color: var(--orange); font-family: 'Noto Serif SC', serif; font-weight: 900; font-size: 13px; letter-spacing: 0.15em; }

.nav {
  display: flex;
  gap: 4px;
  font-family: 'JetBrains Mono', monospace;
  font-size: 12px;
}
.nav a {
  color: var(--text-dim);
  padding: 6px 12px;
  border-radius: 4px;
  text-decoration: none;
  transition: all 0.15s;
  letter-spacing: 0.03em;
}
.nav a:hover { color: var(--text); background: var(--bg2); }
.nav a.active { color: var(--green); background: var(--green-glow); }
.nav a::before { content: "/"; color: var(--text-ghost); margin-right: 4px; }

.agent-tag {
  display: flex;
  align-items: center;
  gap: 8px;
  font-family: 'JetBrains Mono', monospace;
  font-size: 12px;
  padding: 6px 12px;
  border: 1px solid var(--green);
  background: var(--green-glow);
  border-radius: 4px;
  color: var(--text);
}
.agent-tag .ver { color: var(--orange); font-weight: 700; }
.agent-tag .avatar {
  width: 20px; height: 20px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--green), var(--blue));
  display: flex; align-items: center; justify-content: center;
  color: var(--bg);
  font-weight: 800;
  font-size: 10px;
}

/* === Main container === */
.main {
  max-width: 1200px;
  margin: 0 auto;
  padding: 32px 24px 80px;
}

/* === Command prompt header === */
.cmd {
  font-family: 'JetBrains Mono', monospace;
  font-size: 13px;
  color: var(--text-dim);
  margin-bottom: 20px;
  padding-bottom: 10px;
  border-bottom: 1px solid var(--line);
  letter-spacing: 0.02em;
}
.cmd::before { content: "> "; color: var(--green); }
.cmd .flag { color: var(--orange); }
.cmd .val { color: var(--text); }

/* === Section heading === */
.section-title {
  font-family: 'JetBrains Mono', monospace;
  font-size: 14px;
  color: var(--green);
  letter-spacing: 0.08em;
  margin-bottom: 12px;
  display: flex;
  align-items: center;
  gap: 10px;
}
.section-title::before {
  content: "# ";
  color: var(--orange);
}
.section-title .zh {
  color: var(--text-dim);
  font-family: 'Noto Sans SC', sans-serif;
  font-weight: 400;
  font-size: 12px;
  letter-spacing: 0.05em;
}

/* === Card === */
.card {
  background: var(--bg2);
  border: 1px solid var(--line);
  border-radius: 6px;
  padding: 20px;
  margin-bottom: 16px;
}
.card.accent-green { border-color: var(--green); background: linear-gradient(135deg, var(--green-glow) 0%, var(--bg2) 100%); }
.card.accent-orange { border-color: var(--orange); background: linear-gradient(135deg, var(--orange-glow) 0%, var(--bg2) 100%); }
.card.accent-gold { border-color: var(--gold); background: linear-gradient(135deg, var(--gold-glow) 0%, var(--bg2) 100%); }

/* === Button === */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 10px 18px;
  border: 1px solid var(--green);
  background: var(--green-glow);
  color: var(--green);
  font-family: 'JetBrains Mono', monospace;
  font-size: 13px;
  font-weight: 700;
  border-radius: 4px;
  cursor: pointer;
  transition: all 0.15s;
  letter-spacing: 0.05em;
  text-decoration: none;
}
.btn:hover {
  background: var(--green);
  color: var(--bg);
  box-shadow: 0 0 20px rgba(0, 255, 136, 0.4);
}
.btn.btn-ghost {
  background: transparent;
  border-color: var(--line);
  color: var(--text-dim);
}
.btn.btn-ghost:hover { color: var(--text); background: var(--bg2); box-shadow: none; }
.btn.btn-orange { border-color: var(--orange); background: var(--orange-glow); color: var(--orange); }
.btn.btn-orange:hover { background: var(--orange); color: var(--bg); box-shadow: 0 0 20px rgba(255, 107, 53, 0.4); }
.btn.btn-gold { border-color: var(--gold); background: var(--gold-glow); color: var(--gold); }
.btn.btn-gold:hover { background: var(--gold); color: var(--bg); box-shadow: 0 0 20px rgba(232, 197, 106, 0.5); }

/* === Input === */
.input {
  width: 100%;
  padding: 12px 14px;
  background: var(--bg);
  border: 1px solid var(--line);
  border-radius: 4px;
  color: var(--text);
  font-family: 'JetBrains Mono', monospace;
  font-size: 13px;
  transition: border-color 0.15s;
}
.input:focus {
  outline: none;
  border-color: var(--green);
  box-shadow: 0 0 0 3px var(--green-glow);
}
.input::placeholder { color: var(--text-ghost); }

.label {
  font-family: 'JetBrains Mono', monospace;
  font-size: 12px;
  color: var(--green);
  letter-spacing: 0.05em;
  margin-bottom: 6px;
  display: block;
}
.label .zh { color: var(--text-dim); font-family: 'Noto Sans SC', sans-serif; font-weight: 400; margin-left: 6px; font-size: 11px; }

/* === Progress bar === */
.progress {
  font-family: 'JetBrains Mono', monospace;
  font-size: 12px;
  color: var(--green);
  line-height: 1.4;
}
.progress-bar {
  height: 8px;
  background: var(--bg3);
  border-radius: 2px;
  overflow: hidden;
  position: relative;
}
.progress-bar .fill {
  height: 100%;
  background: linear-gradient(90deg, var(--green), var(--gold));
  transition: width 0.5s ease;
  box-shadow: 0 0 10px rgba(0, 255, 136, 0.4);
}

/* === Specialty tag === */
.spec-tag {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  font-family: 'JetBrains Mono', monospace;
  font-size: 10px;
  font-weight: 700;
  padding: 2px 8px;
  border-radius: 3px;
  letter-spacing: 0.08em;
}
.spec-tag.lens { background: rgba(59, 130, 246, 0.15); color: var(--blue); border: 1px solid rgba(59, 130, 246, 0.4); }
.spec-tag.insight { background: rgba(167, 139, 250, 0.15); color: var(--purple); border: 1px solid rgba(167, 139, 250, 0.4); }
.spec-tag.build { background: var(--green-glow); color: var(--green); border: 1px solid rgba(0, 255, 136, 0.4); }
.spec-tag.culture { background: var(--orange-glow); color: var(--orange); border: 1px solid rgba(255, 107, 53, 0.4); }
.spec-tag.story { background: var(--gold-glow); color: var(--gold); border: 1px solid rgba(232, 197, 106, 0.4); }

/* === Version badge === */
.ver-badge {
  font-family: 'JetBrains Mono', monospace;
  font-size: 11px;
  font-weight: 700;
  color: var(--orange);
  padding: 2px 6px;
  border: 1px solid var(--orange);
  border-radius: 3px;
  background: var(--orange-glow);
}

/* === Stat block === */
.stat {
  background: var(--bg2);
  border: 1px solid var(--line);
  border-radius: 6px;
  padding: 16px 20px;
}
.stat .label { color: var(--text-dim); font-family: 'JetBrains Mono', monospace; font-size: 11px; letter-spacing: 0.08em; margin-bottom: 4px; }
.stat .value { font-family: 'JetBrains Mono', monospace; font-size: 28px; font-weight: 800; color: var(--text); }
.stat .value .unit { font-size: 14px; color: var(--text-dim); margin-left: 4px; }
.stat .delta { font-size: 11px; color: var(--green); margin-top: 4px; font-family: 'JetBrains Mono', monospace; }
.stat.accent-gold .value { color: var(--gold); }
.stat.accent-orange .value { color: var(--orange); }
.stat.accent-green .value { color: var(--green); }

/* === Toast === */
.toast-layer {
  position: fixed;
  bottom: 24px;
  left: 50%;
  transform: translateX(-50%);
  z-index: 2000;
  display: flex;
  flex-direction: column;
  gap: 8px;
  align-items: center;
}
.toast {
  background: var(--bg2);
  border: 1px solid var(--green);
  border-left-width: 3px;
  padding: 10px 16px;
  border-radius: 4px;
  font-family: 'JetBrains Mono', monospace;
  font-size: 13px;
  color: var(--text);
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.4);
  animation: toast-in 0.3s ease-out;
  max-width: 440px;
}
.toast.error { border-color: var(--red); }
.toast.warn { border-color: var(--orange); }
@keyframes toast-in {
  from { opacity: 0; transform: translateY(20px); }
  to { opacity: 1; transform: translateY(0); }
}

/* === Modal === */
.modal-backdrop {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.7);
  backdrop-filter: blur(4px);
  z-index: 1000;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 20px;
}
.modal {
  background: var(--bg2);
  border: 1px solid var(--green);
  border-radius: 8px;
  padding: 28px;
  max-width: 520px;
  width: 100%;
  max-height: 90vh;
  overflow-y: auto;
  box-shadow: 0 30px 80px rgba(0, 0, 0, 0.6);
}

/* === Small text / footer === */
.footer-note {
  text-align: center;
  color: var(--text-ghost);
  font-family: 'JetBrains Mono', monospace;
  font-size: 11px;
  margin-top: 48px;
  padding-top: 16px;
  border-top: 1px dashed var(--line);
  letter-spacing: 0.05em;
}

/* === Blinking cursor === */
.cursor-blink::after {
  content: "█";
  color: var(--green);
  animation: blink 1s steps(1) infinite;
  margin-left: 2px;
}
@keyframes blink { 50% { opacity: 0; } }

/* === Loading ascii === */
.loading-ascii {
  font-family: 'JetBrains Mono', monospace;
  color: var(--green);
  white-space: pre;
  line-height: 1.2;
}

/* === Utility === */
.grid { display: grid; gap: 16px; }
.grid-4 { grid-template-columns: repeat(4, 1fr); }
.grid-3 { grid-template-columns: repeat(3, 1fr); }
.grid-2 { grid-template-columns: repeat(2, 1fr); }
.flex { display: flex; gap: 12px; }
.flex-col { display: flex; flex-direction: column; gap: 12px; }
.flex-between { display: flex; justify-content: space-between; align-items: center; }
.text-dim { color: var(--text-dim); }
.text-green { color: var(--green); }
.text-orange { color: var(--orange); }
.text-gold { color: var(--gold); }
.mt-8 { margin-top: 8px; } .mt-12 { margin-top: 12px; } .mt-16 { margin-top: 16px; } .mt-24 { margin-top: 24px; } .mt-32 { margin-top: 32px; }
.mb-8 { margin-bottom: 8px; } .mb-12 { margin-bottom: 12px; } .mb-16 { margin-bottom: 16px; } .mb-24 { margin-bottom: 24px; }
.gap-4 { gap: 4px; } .gap-8 { gap: 8px; } .gap-12 { gap: 12px; } .gap-16 { gap: 16px; }

@media (max-width: 768px) {
  .grid-4 { grid-template-columns: repeat(2, 1fr); }
  .grid-3 { grid-template-columns: 1fr; }
  .grid-2 { grid-template-columns: 1fr; }
  .nav { flex-wrap: wrap; }
  .topbar-inner { flex-wrap: wrap; }
}