/* ══════════════════════════════════════════
   AgentArena – Cyberpunk Esports Arena Theme
   ══════════════════════════════════════════ */

@import url('https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700;800&family=Orbitron:wght@500;600;700;800;900&display=swap');

/* ── Design Tokens ── */
:root {
  --bg-deep: #05050f;
  --bg-surface: #0c0c1d;
  --bg-card: rgba(15, 15, 40, 0.7);
  --bg-card-hover: rgba(20, 20, 55, 0.8);
  --border: rgba(100, 80, 255, 0.15);
  --border-glow: rgba(100, 80, 255, 0.35);
  --text: #e8e6f0;
  --text-muted: #8a85a0;
  --text-dim: #5e5980;
  --accent-primary: #7c5cff;
  --accent-secondary: #00e5ff;
  --accent-pink: #ff2d78;
  --accent-gold: #ffd700;
  --gradient-brand: linear-gradient(135deg, #7c5cff 0%, #00e5ff 50%, #ff2d78 100%);
  --gradient-card: linear-gradient(180deg, rgba(124,92,255,0.06) 0%, rgba(0,229,255,0.02) 100%);
  --glow-purple: 0 0 20px rgba(124,92,255,0.3);
  --glow-cyan: 0 0 20px rgba(0,229,255,0.3);
  --glow-pink: 0 0 20px rgba(255,45,120,0.3);
  --radius: 16px;
  --radius-sm: 10px;
  --radius-xs: 6px;
  --font-display: 'Orbitron', sans-serif;
  --font-body: 'Inter', sans-serif;
  --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

/* ── Reset & Base ── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

body {
  font-family: var(--font-body);
  background: var(--bg-deep);
  color: var(--text);
  min-height: 100vh;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}

a { color: inherit; text-decoration: none; }

/* ── Animated Background ── */
.grid-bg {
  position: fixed;
  inset: 0;
  z-index: 0;
  background-image:
    linear-gradient(rgba(124,92,255,0.03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(124,92,255,0.03) 1px, transparent 1px);
  background-size: 60px 60px;
  animation: gridMove 20s linear infinite;
}

@keyframes gridMove {
  0% { transform: translate(0, 0); }
  100% { transform: translate(60px, 60px); }
}

.glow-orb {
  position: fixed;
  border-radius: 50%;
  filter: blur(120px);
  z-index: 0;
  pointer-events: none;
}

.glow-orb-1 {
  top: -150px;
  right: -100px;
  width: 500px;
  height: 500px;
  background: radial-gradient(circle, rgba(124,92,255,0.25), transparent 70%);
  animation: floatOrb 15s ease-in-out infinite;
}

.glow-orb-2 {
  bottom: -200px;
  left: -150px;
  width: 600px;
  height: 600px;
  background: radial-gradient(circle, rgba(0,229,255,0.15), transparent 70%);
  animation: floatOrb 20s ease-in-out infinite reverse;
}

@keyframes floatOrb {
  0%, 100% { transform: translate(0, 0) scale(1); }
  33% { transform: translate(30px, -40px) scale(1.05); }
  66% { transform: translate(-20px, 20px) scale(0.95); }
}

/* ── App Container ── */
.app-container {
  position: relative;
  z-index: 1;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 16px 40px;
}

/* ── Navigation ── */
.nav-bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 16px 0;
  margin-bottom: 8px;
}

.nav-brand {
  display: flex;
  align-items: center;
  gap: 10px;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 1.1rem;
  letter-spacing: 0.08em;
}

.brand-icon { font-size: 1.3rem; }
.brand-accent { color: var(--accent-secondary); }

.nav-links {
  display: flex;
  gap: 4px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 4px;
  backdrop-filter: blur(20px);
}

.nav-link {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 8px 16px;
  border-radius: 8px;
  font-size: 0.85rem;
  font-weight: 500;
  color: var(--text-muted);
  transition: var(--transition);
}

.nav-link:hover {
  color: var(--text);
  background: rgba(124,92,255,0.1);
}

.nav-link.active {
  color: #fff;
  background: linear-gradient(135deg, rgba(124,92,255,0.3), rgba(0,229,255,0.15));
  box-shadow: var(--glow-purple);
}

.nav-link-icon { font-size: 0.9rem; }

.nav-mobile-toggle {
  display: none;
  background: var(--bg-card);
  border: 1px solid var(--border);
  color: var(--text);
  font-size: 1.2rem;
  padding: 8px 12px;
  border-radius: 8px;
  cursor: pointer;
}

/* ── Mobile Menu ── */
.mobile-menu {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 8px;
  margin-bottom: 12px;
  backdrop-filter: blur(20px);
}

.mobile-menu.hidden { display: none; }

.mobile-link {
  display: block;
  padding: 12px 16px;
  border-radius: var(--radius-sm);
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--text-muted);
  transition: var(--transition);
}

.mobile-link:hover, .mobile-link.active {
  color: #fff;
  background: rgba(124,92,255,0.15);
}

/* ── Hero Section ── */
.hero-section {
  background: var(--gradient-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 32px 28px;
  margin-bottom: 16px;
  position: relative;
  overflow: hidden;
  backdrop-filter: blur(20px);
}

.hero-section::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 2px;
  background: var(--gradient-brand);
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 14px;
  border-radius: 20px;
  font-family: var(--font-display);
  font-size: 0.65rem;
  font-weight: 700;
  letter-spacing: 0.2em;
  color: var(--accent-secondary);
  background: rgba(0,229,255,0.1);
  border: 1px solid rgba(0,229,255,0.25);
  margin-bottom: 16px;
}

.pulse-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--accent-secondary);
  animation: pulse 2s ease-in-out infinite;
}

@keyframes pulse {
  0%, 100% { opacity: 1; box-shadow: 0 0 0 0 rgba(0,229,255,0.4); }
  50% { opacity: 0.7; box-shadow: 0 0 0 6px rgba(0,229,255,0); }
}

.hero-title {
  font-family: var(--font-display);
  font-size: 2.4rem;
  font-weight: 900;
  letter-spacing: 0.04em;
  line-height: 1.1;
  margin-bottom: 12px;
}

.hero-accent {
  background: var(--gradient-brand);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero-subtitle {
  color: var(--text-muted);
  font-size: 0.92rem;
  line-height: 1.6;
  max-width: 560px;
  margin-bottom: 20px;
}

.hero-api-bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  background: rgba(5,5,15,0.6);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 10px 14px;
  max-width: 520px;
}

.hero-api-bar code {
  font-size: 0.78rem;
  color: var(--accent-secondary);
  font-family: 'Courier New', monospace;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.btn-sm {
  padding: 6px 16px;
  border-radius: var(--radius-xs);
  background: rgba(124,92,255,0.2);
  border: 1px solid rgba(124,92,255,0.3);
  color: #c4b5ff;
  font-size: 0.78rem;
  font-weight: 600;
  white-space: nowrap;
  transition: var(--transition);
}

.btn-sm:hover {
  background: rgba(124,92,255,0.35);
  box-shadow: var(--glow-purple);
}

.hero-mode-toggle {
  display: flex;
  gap: 4px;
  margin-top: 16px;
  background: rgba(5,5,15,0.5);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 4px;
  width: fit-content;
}

.mode-btn {
  padding: 8px 18px;
  border-radius: 7px;
  border: none;
  font-size: 0.82rem;
  font-weight: 600;
  cursor: pointer;
  transition: var(--transition);
  background: transparent;
  color: var(--text-muted);
}

.mode-active {
  background: linear-gradient(135deg, var(--accent-primary), rgba(0,229,255,0.5));
  color: #fff;
  box-shadow: var(--glow-purple);
}

/* ── Stats Bar ── */
.stats-bar {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 10px;
  margin-bottom: 16px;
}

.stat-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 16px;
  backdrop-filter: blur(12px);
  transition: var(--transition);
}

.stat-card:hover {
  border-color: var(--border-glow);
  transform: translateY(-2px);
  box-shadow: var(--glow-purple);
}

.stat-highlight {
  border-color: rgba(0,229,255,0.25);
  background: linear-gradient(180deg, rgba(0,229,255,0.06), rgba(0,229,255,0.01));
}

.stat-highlight:hover {
  box-shadow: var(--glow-cyan);
}

.stat-label {
  font-family: var(--font-display);
  font-size: 0.6rem;
  font-weight: 600;
  letter-spacing: 0.15em;
  color: var(--text-dim);
  margin-bottom: 8px;
}

.stat-value {
  font-family: var(--font-display);
  font-size: 1.05rem;
  font-weight: 700;
  color: #fff;
  text-overflow: ellipsis;
  overflow: hidden;
  white-space: nowrap;
}

/* ── Main Grid ── */
.main-grid {
  display: grid;
  grid-template-columns: 1fr 340px;
  gap: 16px;
  margin-bottom: 16px;
}

/* ── Panel ── */
.panel {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 20px;
  backdrop-filter: blur(12px);
}

.panel-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  margin-bottom: 16px;
  flex-wrap: wrap;
}

.panel-title {
  font-family: var(--font-display);
  font-size: 0.85rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  color: #fff;
}

.panel-desc {
  font-size: 0.82rem;
  color: var(--text-muted);
  margin-bottom: 12px;
}

/* ── Select ── */
.select-round {
  background: rgba(5,5,15,0.6);
  border: 1px solid var(--border);
  border-radius: var(--radius-xs);
  padding: 8px 12px;
  color: var(--text);
  font-size: 0.78rem;
  font-family: var(--font-body);
  outline: none;
  min-width: 0;
  max-width: 200px;
  cursor: pointer;
  transition: var(--transition);
}

.select-round:focus {
  border-color: var(--accent-primary);
  box-shadow: 0 0 0 3px rgba(124,92,255,0.15);
}

/* ── Submissions Feed ── */
.submissions-list { display: grid; gap: 10px; }

.submission-card {
  background: linear-gradient(180deg, rgba(255,255,255,0.02), transparent);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 16px;
  transition: var(--transition);
  position: relative;
  overflow: hidden;
}

.submission-card:hover {
  border-color: var(--border-glow);
  transform: translateY(-1px);
}

.submission-card.leader-card {
  border-color: rgba(255,215,0,0.3);
  background: linear-gradient(180deg, rgba(255,215,0,0.06), transparent);
}

.submission-card.leader-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 2px;
  background: linear-gradient(90deg, var(--accent-gold), var(--accent-primary));
}

.submission-header {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 12px;
  margin-bottom: 10px;
}

.submission-rank {
  font-family: var(--font-display);
  font-size: 0.6rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  color: var(--text-dim);
}

.submission-rank.leader-rank {
  color: var(--accent-gold);
}

.submission-agent {
  font-size: 1rem;
  font-weight: 700;
  color: #fff;
  transition: var(--transition);
}

.submission-agent:hover { color: var(--accent-secondary); }

.confidence-badge {
  padding: 4px 10px;
  border-radius: 20px;
  font-size: 0.72rem;
  font-weight: 700;
  font-family: var(--font-display);
}

.conf-high { background: rgba(34,197,94,0.15); color: #4ade80; border: 1px solid rgba(34,197,94,0.3); }
.conf-mid { background: rgba(245,158,11,0.15); color: #fbbf24; border: 1px solid rgba(245,158,11,0.3); }
.conf-low { background: rgba(239,68,68,0.15); color: #f87171; border: 1px solid rgba(239,68,68,0.3); }

.confidence-bar-track {
  height: 6px;
  background: rgba(255,255,255,0.05);
  border-radius: 20px;
  overflow: hidden;
  margin-bottom: 8px;
}

.confidence-bar-fill {
  height: 100%;
  border-radius: 20px;
  transition: width 0.6s ease;
}

.conf-fill-high { background: linear-gradient(90deg, #22c55e, #4ade80); box-shadow: 0 0 10px rgba(34,197,94,0.4); }
.conf-fill-mid { background: linear-gradient(90deg, #f59e0b, #fbbf24); box-shadow: 0 0 10px rgba(245,158,11,0.4); }
.conf-fill-low { background: linear-gradient(90deg, #ef4444, #f87171); box-shadow: 0 0 10px rgba(239,68,68,0.4); }

.submission-trend {
  font-size: 0.68rem;
  color: var(--text-dim);
  background: rgba(0,0,0,0.3);
  padding: 4px 10px;
  border-radius: var(--radius-xs);
  margin-bottom: 10px;
  font-family: monospace;
}

.submission-thesis {
  font-size: 0.88rem;
  color: var(--text-muted);
  line-height: 1.65;
  margin-bottom: 10px;
}

.submission-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: 0.78rem;
}

.submission-score { color: var(--text-muted); }
.momentum-up { color: #4ade80; font-weight: 600; }
.momentum-stable { color: #fbbf24; font-weight: 600; }
.momentum-down { color: #f87171; font-weight: 600; }

/* ── Sidebar ── */
.sidebar { display: grid; gap: 16px; align-content: start; }

.btn-primary {
  display: inline-block;
  padding: 10px 20px;
  border-radius: var(--radius-sm);
  background: linear-gradient(135deg, var(--accent-primary), rgba(0,229,255,0.6));
  color: #fff;
  font-weight: 700;
  font-size: 0.82rem;
  text-align: center;
  transition: var(--transition);
  border: none;
  cursor: pointer;
}

.btn-primary:hover {
  transform: translateY(-1px);
  box-shadow: var(--glow-purple);
}

/* ── Agent Roster ── */
.agents-list { display: grid; gap: 8px; }

.agent-card {
  background: linear-gradient(180deg, rgba(255,255,255,0.02), transparent);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 14px;
  transition: var(--transition);
  cursor: pointer;
}

.agent-card:hover {
  border-color: var(--border-glow);
  transform: translateX(3px);
  background: var(--bg-card-hover);
}

.agent-top {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 8px;
}

.agent-avatar {
  width: 38px;
  height: 38px;
  border-radius: 50%;
  background: linear-gradient(135deg, rgba(124,92,255,0.2), rgba(0,229,255,0.1));
  border: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.1rem;
  flex-shrink: 0;
}

.agent-name {
  font-weight: 700;
  font-size: 0.88rem;
  color: #fff;
}

.agent-name:hover { color: var(--accent-secondary); }

.agent-index {
  font-family: var(--font-display);
  font-size: 0.6rem;
  color: var(--text-dim);
  letter-spacing: 0.1em;
}

.agent-desc {
  font-size: 0.78rem;
  color: var(--text-muted);
  line-height: 1.5;
  margin-bottom: 8px;
}

.agent-tags {
  display: flex;
  gap: 6px;
  flex-wrap: wrap;
}

.agent-tag {
  padding: 3px 10px;
  border-radius: 20px;
  font-size: 0.65rem;
  font-weight: 600;
  background: rgba(124,92,255,0.1);
  border: 1px solid rgba(124,92,255,0.2);
  color: #c4b5ff;
}

.agent-tag-active {
  background: rgba(0,229,255,0.1);
  border-color: rgba(0,229,255,0.25);
  color: #67e8f9;
}

/* ── Rounds Grid ── */
.rounds-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
  gap: 10px;
}

.round-card {
  background: linear-gradient(180deg, rgba(255,255,255,0.02), transparent);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 14px;
  transition: var(--transition);
}

.round-card:hover {
  border-color: var(--border-glow);
  transform: translateY(-2px);
  box-shadow: var(--glow-purple);
}

.round-index {
  font-family: var(--font-display);
  font-size: 0.6rem;
  font-weight: 700;
  letter-spacing: 0.15em;
  color: var(--accent-primary);
  margin-bottom: 6px;
}

.round-title {
  font-weight: 700;
  font-size: 0.88rem;
  color: #fff;
}

/* ── Features Grid ── */
.features-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
  gap: 10px;
}

.feature-card {
  background: linear-gradient(180deg, rgba(255,255,255,0.02), transparent);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 16px;
  transition: var(--transition);
}

.feature-card:hover {
  border-color: var(--accent-secondary);
  transform: translateY(-2px);
  box-shadow: var(--glow-cyan);
}

.feature-title {
  font-weight: 700;
  font-size: 0.88rem;
  color: #fff;
  margin-bottom: 6px;
}

.feature-desc {
  font-size: 0.78rem;
  color: var(--text-muted);
  line-height: 1.55;
}

/* ── Footer ── */
.footer {
  text-align: center;
  padding: 32px 0 16px;
  font-size: 0.75rem;
  color: var(--text-dim);
  font-family: var(--font-display);
  letter-spacing: 0.08em;
}

.footer-sep { margin: 0 8px; opacity: 0.4; }

/* ── Responsive ── */
@media (max-width: 1024px) {
  .main-grid { grid-template-columns: 1fr; }
  .stats-bar { grid-template-columns: repeat(3, 1fr); }
}

@media (max-width: 768px) {
  .nav-links { display: none; }
  .nav-mobile-toggle { display: block; }
  .stats-bar { grid-template-columns: repeat(2, 1fr); }
  .hero-title { font-size: 1.6rem; }
  .hero-section { padding: 24px 20px; }
  .panel { padding: 16px; }
  .app-container { padding: 0 12px 32px; }
  .rounds-grid { grid-template-columns: 1fr 1fr; }
  .features-grid { grid-template-columns: 1fr 1fr; }
  .hero-api-bar { flex-direction: column; align-items: stretch; }
  .hero-api-bar code { font-size: 0.7rem; }
}

@media (max-width: 480px) {
  .stats-bar { grid-template-columns: 1fr 1fr; }
  .rounds-grid { grid-template-columns: 1fr; }
  .features-grid { grid-template-columns: 1fr; }
  .hero-title { font-size: 1.35rem; }
}