/* Hero Section */
.hero {
  text-align: center; padding: 100px 20px 60px;
  background: radial-gradient(ellipse at center, rgba(0,212,255,0.05) 0%, transparent 70%);
}
.hero h1 {
  font-size: 3.5rem; font-weight: 900; letter-spacing: 4px;
  margin-bottom: 16px; font-family: var(--font-sans);
}
.hero .subtitle {
  font-size: 1.2rem; color: var(--text-muted); margin-bottom: 24px;
}
.hero .live-count {
  font-family: var(--font-mono); color: var(--accent-gold);
  font-size: 1rem; margin-bottom: 32px;
}
.hero .cta-group { display: flex; gap: 16px; justify-content: center; flex-wrap: wrap; }

/* Arena Viewer */
.arena-section { padding: 0 20px 60px; max-width: 1400px; margin: 0 auto; }
.arena-layout {
  display: flex; gap: 0;
  border: 1px solid var(--border-color); border-radius: 12px;
  overflow: hidden;
}
.arena-container {
  position: relative; flex: 1; min-width: 0;
  min-height: 500px; overflow: hidden;
  background: #050810;
}
.arena-container canvas#arena-canvas { width: 100% !important; height: 100% !important; display: block; }
/* Maximized arena — zoom animation */
.arena-section.animating {
  position: fixed !important; z-index: 10000 !important;
  background: #050810 !important;
  transition: top 0.4s ease, left 0.4s ease, width 0.4s ease, height 0.4s ease,
              padding 0.4s ease, margin 0.4s ease, max-width 0.4s ease, border-radius 0.4s ease;
}
.arena-section.maximized {
  position: fixed !important; top: 0 !important; left: 0 !important;
  width: 100vw !important; height: 100vh !important;
  z-index: 10000 !important;
  background: #050810 !important; margin: 0 !important; padding: 0 !important;
  max-width: none !important; display: flex !important; flex-direction: column !important;
  border-radius: 0 !important;
}
.arena-section.maximized > .section-title { margin: 8px 16px !important; font-size: 1rem !important; flex-shrink: 0 !important; }
.arena-section.maximized .arena-layout {
  flex: 1 !important; border: none !important; border-radius: 0 !important;
  height: 0 !important; min-height: 0 !important;
}
.arena-section.maximized .arena-container { min-height: 0 !important; }
.arena-section.maximized .arena-controls {
  flex-shrink: 0 !important; border-top: 1px solid var(--border-color) !important;
  border-radius: 0 !important;
}

/* Arena sidebar — kill feed & players to the right */
.arena-sidebar {
  width: 280px; flex-shrink: 0;
  background: var(--bg-card);
  border-left: 1px solid var(--border-color);
  display: flex; flex-direction: column;
  max-height: 500px;
}
.arena-tabs {
  display: flex; gap: 0;
  border-bottom: 1px solid var(--border-color);
}
.arena-tab {
  flex: 1; padding: 10px 12px; background: none; border: none;
  color: var(--text-muted); cursor: pointer; font-size: 0.85rem;
  font-family: var(--font-mono); text-align: center;
  border-bottom: 2px solid transparent; margin-bottom: -1px;
  transition: color 0.15s, border-color 0.15s;
}
.arena-tab:hover { color: var(--text-primary); }
.arena-tab.active {
  color: var(--accent-blue); border-bottom-color: var(--accent-blue);
}
.arena-tab-content { flex: 1; position: relative; overflow: hidden; min-height: 0; }
.arena-tab-panel {
  display: none; padding: 8px 14px;
  height: 100%; overflow-y: auto;
}
.arena-tab-panel.active { display: block; }

/* Kill feed (inside tab panel) */
.hud-killfeed {
  font-family: var(--font-mono); font-size: 0.8rem;
  min-height: 28px;
}
.hud-killfeed:empty::after {
  content: 'No recent kills'; color: var(--text-muted); font-style: italic;
}
.killfeed-entry {
  padding: 4px 0; border-bottom: 1px solid rgba(30,41,59,0.4);
}
.killfeed-entry.killfeed-new {
  animation: killfeed-in 0.3s ease-out;
}
.killfeed-entry.killfeed-out {
  animation: killfeed-fade 0.5s ease-out forwards;
}
.killfeed-entry .killer { color: var(--accent-blue); }
.killfeed-entry .victim { color: var(--accent-red); }
@keyframes killfeed-in {
  from { transform: translateY(-8px); opacity: 0; }
  to { transform: translateY(0); opacity: 1; }
}
@keyframes killfeed-fade {
  from { opacity: 1; }
  to { opacity: 0; }
}

/* Players panel (inside tab panel) */
.hud-players {
  font-family: var(--font-mono); font-size: 0.8rem;
  display: flex; flex-direction: column; gap: 2px;
}
.hud-players:empty::after {
  content: 'No players connected'; color: var(--text-muted); font-style: italic;
}
.player-entry {
  padding: 2px 0; white-space: nowrap;
}
.player-entry.dead { opacity: 0.4; }

/* Lobby panel (inside tab panel) */
.hud-lobby {
  font-family: var(--font-mono); font-size: 0.8rem;
  display: flex; flex-direction: column; gap: 2px;
}
.hud-lobby:empty::after {
  content: 'No bots in lobby'; color: var(--text-muted); font-style: italic;
}

/* Arena HUD overlay (minimal — just round info) */
.hud-round {
  position: absolute; top: 12px; left: 12px; padding: 8px 14px;
  background: rgba(10,14,23,0.85); border-radius: 8px;
  font-family: var(--font-mono); font-size: 0.85rem; z-index: 10;
  border: 1px solid var(--border-color);
}

/* Arena controls */
.arena-controls {
  display: flex; gap: 16px; align-items: center; padding: 16px 0;
  flex-wrap: wrap; max-width: 1400px; margin: 0 auto;
}
.arena-controls label { font-size: 0.85rem; color: var(--text-muted); }
.arena-controls input[type="range"] { width: 120px; accent-color: var(--accent-blue); }
.arena-controls select {
  padding: 6px 10px; background: var(--bg-card); color: var(--text-primary);
  border: 1px solid var(--border-color); border-radius: 4px; font-size: 0.85rem;
}
.arena-controls .control-group { display: flex; align-items: center; gap: 8px; }

/* Connection status */
.ws-status {
  display: inline-flex; align-items: center; gap: 6px;
  font-size: 0.8rem; color: var(--text-muted);
}
.ws-status .dot {
  width: 8px; height: 8px; border-radius: 50%; background: var(--accent-red);
}
.ws-status.connected .dot { background: #22c55e; }

/* Leaderboard */
.leaderboard-tabs {
  display: flex; gap: 0; margin-bottom: 16px; border-bottom: 2px solid var(--border-color);
}
.leaderboard-tabs button {
  padding: 10px 20px; background: none; border: none; color: var(--text-muted);
  cursor: pointer; font-size: 0.9rem; border-bottom: 2px solid transparent;
  margin-bottom: -2px; transition: all 0.2s;
}
.leaderboard-tabs button.active {
  color: var(--accent-blue); border-bottom-color: var(--accent-blue);
}
.leaderboard-scroll {
  max-height: 480px; overflow-y: auto;
}
.leaderboard-table {
  width: 100%; border-collapse: collapse; font-family: var(--font-mono); font-size: 0.85rem;
}
.leaderboard-table thead { position: sticky; top: 0; background: var(--bg-card); z-index: 1; }
.leaderboard-table th {
  text-align: left; padding: 10px 12px; color: var(--text-muted);
  border-bottom: 1px solid var(--border-color); font-weight: 600;
}
.leaderboard-table td {
  padding: 10px 12px; border-bottom: 1px solid rgba(30,41,59,0.3);
}
.leaderboard-table tr:hover { background: rgba(0,212,255,0.03); }
.rank-1 td:first-child { color: var(--accent-gold); font-weight: 700; }
.rank-2 td:first-child { color: #c0c0c0; font-weight: 700; }
.rank-3 td:first-child { color: #cd7f32; font-weight: 700; }

/* Key Generator */
.keygen-card { max-width: 500px; margin: 0 auto; text-align: center; }
.keygen-card .subtitle { color: var(--text-muted); margin-bottom: 20px; }
.keygen-warning {
  color: var(--accent-gold); font-size: 0.85rem; margin-top: 12px;
  font-family: var(--font-mono);
}
.keygen-success { margin-top: 16px; }

/* Getting Started */
.steps { counter-reset: step; list-style: none; padding: 0; }
.steps li {
  counter-increment: step; padding: 12px 0 12px 48px; position: relative;
  border-left: 2px solid var(--border-color); margin-left: 16px;
}
.steps li::before {
  content: counter(step); position: absolute; left: -15px; top: 10px;
  width: 28px; height: 28px; background: var(--accent-blue); color: var(--bg-primary);
  border-radius: 50%; display: flex; align-items: center; justify-content: center;
  font-weight: 700; font-size: 0.85rem;
}
pre.code-block {
  background: var(--bg-secondary); border: 1px solid var(--border-color);
  border-radius: 8px; padding: 16px; overflow: auto; max-height: 400px;
  font-family: var(--font-mono); font-size: 0.8rem; line-height: 1.5;
  color: #a5f3fc; margin-top: 16px; white-space: pre;
}

/* Collapsible sections */
.section-collapsible {
  border: none; margin: 0;
}
.section:has(.section-collapsible:not([open])) {
  padding: 12px 20px;
}
.section-collapsible > summary {
  list-style: none; cursor: pointer; display: flex; align-items: center; gap: 10px;
  user-select: none;
}
.section-collapsible > summary::-webkit-details-marker { display: none; }
.section-collapsible > summary::before {
  content: '\25B6'; font-size: 0.7rem; color: var(--text-muted);
  transition: transform 0.2s;
}
.section-collapsible[open] > summary::before {
  transform: rotate(90deg);
}
.section-collapsible > summary .section-title {
  margin: 0; cursor: pointer;
}

/* API Reference */
.api-card { margin-bottom: 16px; }
.api-card:last-child { margin-bottom: 0; }
.api-group > summary {
  list-style: none; cursor: pointer; display: flex; align-items: center; gap: 8px;
  user-select: none;
}
.api-group > summary::-webkit-details-marker { display: none; }
.api-group > summary::before {
  content: '\25B6'; font-size: 0.6rem; color: var(--text-muted);
  transition: transform 0.2s;
}
.api-group[open] > summary::before { transform: rotate(90deg); }
.api-group:not([open]) { padding-bottom: 0; }
.api-section-title {
  font-size: 1.1rem; font-weight: 700; margin: 0;
  color: var(--accent-blue); font-family: var(--font-sans);
  cursor: pointer;
}
.api-details {
  border: 1px solid var(--border-color); border-radius: 8px;
  margin-bottom: 8px; overflow: hidden;
}
.api-details summary {
  padding: 10px 14px; cursor: pointer; display: flex; align-items: center;
  gap: 10px; font-family: var(--font-mono); font-size: 0.85rem;
  background: var(--bg-secondary); user-select: none;
}
.api-details summary:hover { background: rgba(0,212,255,0.05); }
.api-details[open] summary { border-bottom: 1px solid var(--border-color); }
.api-details summary code {
  color: var(--accent-blue); font-size: 0.85rem;
}
.api-body { padding: 14px; font-size: 0.85rem; line-height: 1.6; }
.api-body h4 {
  font-size: 0.8rem; color: var(--text-muted); margin: 14px 0 6px;
  font-family: var(--font-mono); text-transform: uppercase; letter-spacing: 1px;
}
.api-body h4:first-child { margin-top: 0; }
.api-body p { margin: 0 0 10px; color: var(--text-muted); }
.api-body .code-block { margin: 8px 0; font-size: 0.75rem; }
.api-label { color: var(--text-muted); font-family: var(--font-sans); font-size: 0.8rem; }
.api-method {
  display: inline-block; padding: 2px 8px; border-radius: 4px;
  font-size: 0.7rem; font-weight: 700; font-family: var(--font-mono);
  min-width: 52px; text-align: center; flex-shrink: 0;
}
.api-method.get { background: #22c55e22; color: #22c55e; border: 1px solid #22c55e44; }
.api-method.post { background: #3b82f622; color: #3b82f6; border: 1px solid #3b82f644; }
.api-method.put { background: #f59e0b22; color: #f59e0b; border: 1px solid #f59e0b44; }
.api-method.delete { background: #ef444422; color: #ef4444; border: 1px solid #ef444444; }
.api-method.ws { background: #8b5cf622; color: #8b5cf6; border: 1px solid #8b5cf644; }
.api-msg, .api-msg-send {
  display: inline-block; padding: 2px 8px; border-radius: 4px;
  font-size: 0.75rem; font-weight: 700; font-family: var(--font-mono);
}
.api-msg { background: #22c55e18; color: #22c55e; border: 1px solid #22c55e33; }
.api-msg-send { background: #3b82f618; color: #3b82f6; border: 1px solid #3b82f633; }
.api-flow {
  padding-left: 20px; margin: 8px 0; font-size: 0.8rem; color: var(--text-muted);
}
.api-flow li { padding: 3px 0; }
.api-flow code { color: var(--accent-blue); }
.api-table {
  width: 100%; border-collapse: collapse; font-family: var(--font-mono);
  font-size: 0.8rem; margin: 8px 0;
}
.api-table td, .api-table th {
  padding: 8px 12px; text-align: left;
  border-bottom: 1px solid rgba(30,41,59,0.3);
}
.api-table th {
  color: var(--text-muted); font-weight: 600; font-size: 0.75rem;
  text-transform: uppercase; letter-spacing: 0.5px;
}
.api-table code { color: var(--accent-blue); }
.api-table-full { margin: 0; }

/* Footer */
.footer {
  border-top: 1px solid var(--border-color); padding: 40px 20px;
  text-align: center; color: var(--text-muted); font-size: 0.85rem;
}
.footer a { color: var(--accent-blue); text-decoration: none; }
.footer a:hover { text-decoration: underline; }
.footer-links { display: flex; gap: 24px; justify-content: center; margin: 12px 0; }
.footer-stats { font-family: var(--font-mono); font-size: 0.8rem; margin-top: 8px; }

/* Responsive */
@media (max-width: 768px) {
  .hero h1 { font-size: 2rem; letter-spacing: 2px; }
  .hero .subtitle { font-size: 1rem; }
  .arena-layout { flex-direction: column; }
  .arena-sidebar { width: 100%; border-left: none; border-top: 1px solid var(--border-color); }
  .arena-tab-panel { max-height: 160px; height: auto; }
  .arena-container { min-height: 350px; }
  .hud-killfeed { font-size: 0.7rem; }
  .arena-controls { padding: 12px 16px; }
  .leaderboard-tabs button { padding: 8px 12px; font-size: 0.8rem; }
}