:root {
  --bg-main: #0b0f19;
  --bg-card: rgba(20, 26, 40, 0.88);
  --bg-card-hover: rgba(28, 36, 56, 0.96);
  --border-color: rgba(255, 255, 255, 0.08);
  --border-glow: rgba(16, 185, 129, 0.4);
  --text-primary: #f8fafc;
  --text-secondary: #94a3b8;
  --text-muted: #64748b;
  --accent-primary: #6366f1;
  --accent-primary-hover: #4f46e5;
  --accent-gold: #f59e0b;
  --accent-green: #10b981;
  --accent-red: #ef4444;
  --accent-cyan: #38bdf8;
  --radius-lg: 16px;
  --radius-md: 10px;
  --radius-sm: 6px;
  --font-sans: 'Outfit', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  --font-mono: 'JetBrains Mono', monospace;
}

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

body {
  background-color: var(--bg-main);
  background-image:
    radial-gradient(at 0% 0%, rgba(99, 102, 241, 0.14) 0px, transparent 50%),
    radial-gradient(at 100% 100%, rgba(16, 185, 129, 0.1) 0px, transparent 50%);
  color: var(--text-primary);
  font-family: var(--font-sans);
  min-height: 100vh;
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
}

.app-container {
  max-width: 1420px;
  margin: 0 auto;
  padding: 24px;
}

/* Header */
.app-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 16px;
  padding-bottom: 22px;
  border-bottom: 1px solid var(--border-color);
  margin-bottom: 20px;
}

.brand {
  display: flex;
  align-items: center;
  gap: 16px;
}

.brand-logo {
  font-size: 34px;
  background: rgba(255, 255, 255, 0.04);
  padding: 8px 12px;
  border-radius: var(--radius-md);
  border: 1px solid var(--border-color);
}

.brand-title-wrap {
  display: flex;
  align-items: center;
  gap: 12px;
  flex-wrap: wrap;
}

.brand-text h1 {
  font-size: 28px;
  font-weight: 800;
  letter-spacing: -0.5px;
}

.brand-text h1 span {
  color: var(--accent-green);
}

.platform-type-badge {
  background: rgba(16, 185, 129, 0.14);
  color: #34d399;
  border: 1px solid rgba(16, 185, 129, 0.35);
  font-size: 11px;
  font-weight: 800;
  padding: 3px 9px;
  border-radius: 20px;
  letter-spacing: 0.5px;
}

.brand-text .tagline {
  color: var(--text-muted);
  font-size: 13.5px;
  margin-top: 2px;
}

.header-controls {
  display: flex;
  align-items: center;
  gap: 16px;
  flex-wrap: wrap;
}

.header-quick-links {
  display: flex;
  align-items: center;
  gap: 8px;
  flex-wrap: wrap;
}

.quick-link-pill {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 6px 11px;
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid var(--border-color);
  border-radius: 20px;
  color: var(--text-secondary);
  text-decoration: none;
  font-size: 12.5px;
  font-weight: 600;
  transition: all 0.2s ease;
}

.quick-link-pill:hover {
  border-color: var(--accent-primary);
  color: var(--text-primary);
  background: rgba(99, 102, 241, 0.1);
}

.pill-badge {
  background: rgba(99, 102, 241, 0.2);
  color: #a5b4fc;
  font-size: 10px;
  padding: 1px 6px;
  border-radius: 10px;
  font-weight: 700;
}

.status-indicator {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 13px;
  color: var(--text-secondary);
  background: rgba(16, 185, 129, 0.08);
  border: 1px solid rgba(16, 185, 129, 0.25);
  padding: 6px 12px;
  border-radius: 20px;
}

.pulse-dot {
  width: 9px;
  height: 9px;
  border-radius: 50%;
  background-color: var(--accent-green);
  box-shadow: 0 0 10px var(--accent-green);
  animation: pulse 2s infinite;
}

@keyframes pulse {
  0% { transform: scale(0.95); box-shadow: 0 0 0 0 rgba(16, 185, 129, 0.7); }
  70% { transform: scale(1.05); box-shadow: 0 0 0 8px rgba(16, 185, 129, 0); }
  100% { transform: scale(0.95); box-shadow: 0 0 0 0 rgba(16, 185, 129, 0); }
}

/* Navigation Tabs */
.nav-tabs {
  display: flex;
  gap: 8px;
  margin-bottom: 22px;
  border-bottom: 1px solid var(--border-color);
  padding-bottom: 12px;
  overflow-x: auto;
}

.nav-tab {
  background: transparent;
  border: 1px solid transparent;
  color: var(--text-secondary);
  font-family: var(--font-sans);
  font-size: 14.5px;
  font-weight: 600;
  padding: 9px 16px;
  border-radius: var(--radius-md);
  cursor: pointer;
  display: flex;
  align-items: center;
  gap: 8px;
  white-space: nowrap;
  transition: all 0.2s ease;
}

.nav-tab:hover {
  color: var(--text-primary);
  background: rgba(255, 255, 255, 0.04);
}

.nav-tab.active {
  color: #fff;
  background: rgba(99, 102, 241, 0.16);
  border-color: rgba(99, 102, 241, 0.4);
}

.tab-content {
  display: none;
}

.tab-content.active {
  display: block;
}

/* Hero Card */
.home-hero-card {
  background: linear-gradient(135deg, rgba(22, 30, 49, 0.94) 0%, rgba(15, 23, 42, 0.92) 100%);
  border: 1px solid rgba(99, 102, 241, 0.3);
  border-radius: var(--radius-lg);
  padding: 22px 26px;
  margin-bottom: 20px;
  box-shadow: 0 12px 32px rgba(0, 0, 0, 0.35);
}

.home-hero-card.collapsed .hero-body {
  display: none;
}

.hero-top-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.hero-eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 11.5px;
  font-weight: 800;
  letter-spacing: 0.8px;
  color: var(--accent-cyan);
  text-transform: uppercase;
}

.btn-hero-toggle {
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid var(--border-color);
  color: var(--text-secondary);
  font-size: 12px;
  padding: 4px 10px;
  border-radius: var(--radius-sm);
  cursor: pointer;
}

.hero-main-header {
  margin-top: 12px;
}

.hero-main-header h2 {
  font-size: 24px;
  font-weight: 800;
  margin-bottom: 8px;
}

.hero-main-header h2 span {
  color: var(--accent-green);
}

.hero-subtext {
  color: var(--text-secondary);
  font-size: 14px;
  max-width: 980px;
}

.hero-pillars-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 14px;
  margin: 18px 0;
}

.hero-pillar {
  background: rgba(0, 0, 0, 0.25);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 12px 14px;
  display: flex;
  align-items: flex-start;
  gap: 12px;
}

.pillar-emoji {
  font-size: 22px;
}

.pillar-info {
  display: flex;
  flex-direction: column;
  gap: 2px;
  font-size: 12.5px;
  color: var(--text-secondary);
}

.pillar-info strong {
  color: var(--text-primary);
  font-size: 13.5px;
}

.hero-cta-bar {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 14px;
}

/* Buttons */
.btn {
  font-family: var(--font-sans);
  font-weight: 600;
  font-size: 13.5px;
  padding: 9px 16px;
  border-radius: var(--radius-md);
  cursor: pointer;
  transition: all 0.2s ease;
  border: none;
  text-decoration: none;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
}

.btn-sm {
  font-size: 12.5px;
  padding: 6px 12px;
}

.btn-xs {
  font-size: 11px;
  padding: 4px 8px;
}

.btn-primary {
  background: var(--accent-primary);
  color: white;
}

.btn-primary:hover {
  background: var(--accent-primary-hover);
  box-shadow: 0 0 16px rgba(99, 102, 241, 0.4);
}

.btn-secondary {
  background: rgba(255, 255, 255, 0.07);
  color: var(--text-primary);
  border: 1px solid var(--border-color);
}

.btn-secondary:hover {
  background: rgba(255, 255, 255, 0.13);
}

.btn-outline {
  background: transparent;
  border: 1px solid var(--border-color);
  color: var(--text-primary);
}

.btn-outline:hover {
  border-color: var(--accent-primary);
  background: rgba(99, 102, 241, 0.1);
}

.btn-block {
  width: 100%;
}

/* Panels */
.card-panel {
  background: var(--bg-card);
  backdrop-filter: blur(12px);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 20px 24px;
  margin-bottom: 20px;
}

.slate-controls-bar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 14px;
  padding: 14px 20px;
}

.slate-controls-left, .slate-controls-right {
  display: flex;
  align-items: center;
  gap: 12px;
  flex-wrap: wrap;
}

.control-label {
  font-size: 13px;
  font-weight: 700;
  color: var(--text-secondary);
}

.form-select {
  background: rgba(0, 0, 0, 0.4);
  border: 1px solid var(--border-color);
  color: var(--text-primary);
  font-family: var(--font-sans);
  font-size: 13.5px;
  padding: 8px 12px;
  border-radius: var(--radius-sm);
  outline: none;
}

.badge {
  background: rgba(99, 102, 241, 0.2);
  color: #a5b4fc;
  padding: 4px 9px;
  border-radius: 6px;
  font-size: 11px;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 0.4px;
}

.badge-open {
  background: rgba(16, 185, 129, 0.18);
  color: #34d399;
  border: 1px solid rgba(16, 185, 129, 0.35);
}

.badge-final {
  background: rgba(56, 189, 248, 0.16);
  color: #7dd3fc;
  border: 1px solid rgba(56, 189, 248, 0.35);
}

.slate-meta-stat {
  font-size: 12.5px;
  color: var(--text-muted);
  font-family: var(--font-mono);
}

/* Matchup Board Grid */
.arena-view-grid {
  display: grid;
  grid-template-columns: 1fr 350px;
  gap: 20px;
}

@media (max-width: 1100px) {
  .arena-view-grid {
    grid-template-columns: 1fr;
  }
}

.matchups-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(310px, 1fr));
  gap: 16px;
}

.matchup-card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 16px 18px;
  display: flex;
  flex-direction: column;
  gap: 12px;
  transition: all 0.2s ease;
}

.matchup-card:hover {
  border-color: rgba(99, 102, 241, 0.45);
  background: var(--bg-card-hover);
  transform: translateY(-2px);
}

.matchup-top {
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 11.5px;
  color: var(--text-muted);
}

.matchup-teams-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 8px 0;
  border-top: 1px solid rgba(255, 255, 255, 0.05);
  border-bottom: 1px solid rgba(255, 255, 255, 0.05);
}

.team-side {
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.team-side.home {
  text-align: right;
}

.team-abbr {
  font-size: 21px;
  font-weight: 800;
  letter-spacing: -0.3px;
}

.team-role {
  font-size: 11px;
  color: var(--text-muted);
  text-transform: uppercase;
}

.team-score {
  font-family: var(--font-mono);
  font-size: 20px;
  font-weight: 800;
  color: var(--accent-gold);
}

.matchup-lines-center {
  text-align: center;
  display: flex;
  flex-direction: column;
  gap: 3px;
}

.line-pill {
  background: rgba(0, 0, 0, 0.4);
  border: 1px solid var(--border-color);
  padding: 2px 8px;
  border-radius: 6px;
  font-family: var(--font-mono);
  font-size: 11.5px;
  color: var(--accent-cyan);
  font-weight: 600;
}

.consensus-section {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.consensus-row {
  display: flex;
  flex-direction: column;
  gap: 3px;
}

.consensus-labels {
  display: flex;
  justify-content: space-between;
  font-size: 11px;
  color: var(--text-secondary);
  font-family: var(--font-mono);
}

.consensus-bar {
  height: 6px;
  background: rgba(255, 255, 255, 0.08);
  border-radius: 4px;
  overflow: hidden;
  display: flex;
}

.consensus-fill-away {
  background: var(--accent-primary);
  height: 100%;
}

.consensus-fill-home {
  background: var(--accent-green);
  height: 100%;
}

.matchup-footer {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding-top: 4px;
}

/* Action / Reasoning Sidebar */
.action-sidebar {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 18px;
  display: flex;
  flex-direction: column;
  max-height: 780px;
}

.sidebar-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 14px;
  padding-bottom: 10px;
  border-bottom: 1px solid var(--border-color);
}

.live-tag {
  background: rgba(16, 185, 129, 0.18);
  color: #34d399;
  font-size: 10.5px;
  font-weight: 800;
  padding: 2px 7px;
  border-radius: 4px;
}

.action-feed-list {
  flex: 1;
  overflow-y: auto;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.feed-item {
  background: rgba(0, 0, 0, 0.28);
  padding: 10px 12px;
  border-radius: var(--radius-sm);
  border-left: 3px solid var(--accent-primary);
  font-size: 12px;
  cursor: pointer;
  transition: background 0.15s ease;
}

.feed-item:hover {
  background: rgba(99, 102, 241, 0.12);
}

.feed-item-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 4px;
  font-weight: 700;
}

.feed-item-pick {
  font-family: var(--font-mono);
  color: var(--accent-cyan);
  font-size: 11.5px;
  margin-bottom: 4px;
}

.feed-item-rationale {
  color: var(--text-secondary);
  font-size: 11.5px;
  display: -webkit-box;
  -webkit-line-clamp: 3;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

/* Filters & Tables */
.content-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 12px;
  margin-bottom: 18px;
}

.content-header h2 {
  font-size: 22px;
  font-weight: 800;
}

.content-header p {
  color: var(--text-muted);
  font-size: 13.5px;
}

.filters-bar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 14px;
  padding: 14px 20px;
}

.filter-pills-group {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
}

.filter-pill {
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid var(--border-color);
  color: var(--text-secondary);
  font-family: var(--font-sans);
  font-size: 13px;
  font-weight: 600;
  padding: 6px 14px;
  border-radius: 20px;
  cursor: pointer;
}

.filter-pill.active {
  background: rgba(99, 102, 241, 0.2);
  border-color: var(--accent-primary);
  color: #fff;
}

.filter-group {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 13px;
  color: var(--text-secondary);
}

.table-responsive {
  overflow-x: auto;
}

.data-table {
  width: 100%;
  border-collapse: collapse;
  text-align: left;
}

.data-table th {
  padding: 12px 14px;
  font-size: 11.5px;
  text-transform: uppercase;
  color: var(--text-muted);
  border-bottom: 1px solid var(--border-color);
  white-space: nowrap;
}

.data-table td {
  padding: 13px 14px;
  font-size: 13.5px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.04);
}

.data-table tbody tr:hover {
  background: rgba(255, 255, 255, 0.025);
}

.positive {
  color: var(--accent-green);
  font-weight: 700;
}

.negative {
  color: var(--accent-red);
  font-weight: 700;
}

.model-badge {
  font-size: 10.5px;
  font-weight: 800;
  padding: 2px 8px;
  border-radius: 12px;
  text-transform: uppercase;
}

.model-badge.llm {
  background: rgba(168, 85, 247, 0.2);
  color: #d8b4fe;
  border: 1px solid rgba(168, 85, 247, 0.4);
}

.model-badge.statistical {
  background: rgba(56, 189, 248, 0.18);
  color: #7dd3fc;
  border: 1px solid rgba(56, 189, 248, 0.4);
}

.model-badge.baseline {
  background: rgba(245, 158, 11, 0.18);
  color: #fcd34d;
  border: 1px solid rgba(245, 158, 11, 0.4);
}

/* Test Bench & Forms */
.testbench-layout, .register-layout {
  display: grid;
  grid-template-columns: 420px 1fr;
  gap: 20px;
}

@media (max-width: 960px) {
  .testbench-layout, .register-layout {
    grid-template-columns: 1fr;
  }
}

.form-group {
  margin-bottom: 16px;
}

.form-group label {
  display: block;
  font-size: 12.5px;
  font-weight: 600;
  margin-bottom: 6px;
  color: var(--text-secondary);
}

.form-group input, .code-textarea {
  width: 100%;
  background: rgba(0, 0, 0, 0.35);
  border: 1px solid var(--border-color);
  color: #fff;
  font-family: var(--font-sans);
  font-size: 13.5px;
  padding: 9px 12px;
  border-radius: var(--radius-sm);
  outline: none;
}

.code-textarea {
  font-family: var(--font-mono);
  font-size: 12px;
  line-height: 1.45;
}

.form-group small {
  display: block;
  font-size: 11.5px;
  color: var(--text-muted);
  margin-top: 5px;
}

.result-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 14px;
}

.summary-box {
  background: rgba(16, 185, 129, 0.1);
  border: 1px solid rgba(16, 185, 129, 0.35);
  padding: 14px 16px;
  border-radius: var(--radius-md);
  margin-bottom: 16px;
  font-size: 13.5px;
}

.summary-box.error {
  background: rgba(239, 68, 68, 0.12);
  border-color: rgba(239, 68, 68, 0.35);
}

.exchanges-container {
  display: flex;
  flex-direction: column;
  gap: 10px;
  max-height: 540px;
  overflow-y: auto;
}

.exchange-card {
  background: rgba(0, 0, 0, 0.28);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 12px 14px;
}

.exchange-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 6px;
  font-size: 13px;
  font-weight: 700;
}

/* Contract Side-by-Side */
.contract-side-by-side {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 18px;
  margin-top: 14px;
}

@media (max-width: 960px) {
  .contract-side-by-side {
    grid-template-columns: 1fr;
  }
}

.contract-col {
  background: rgba(0, 0, 0, 0.35);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  overflow: hidden;
}

.col-title-bar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 10px 14px;
  background: rgba(255, 255, 255, 0.03);
  border-bottom: 1px solid var(--border-color);
  font-size: 12.5px;
  font-weight: 600;
}

.http-tag, .lang-badge {
  font-size: 11px;
  font-weight: 800;
  padding: 2px 7px;
  border-radius: 4px;
  font-family: var(--font-mono);
}

.http-tag.get { background: rgba(56, 189, 248, 0.2); color: #38bdf8; }
.http-tag.post { background: rgba(16, 185, 129, 0.2); color: #34d399; }
.lang-badge.py { background: rgba(56, 189, 248, 0.15); color: #38bdf8; }
.lang-badge.ts { background: rgba(245, 158, 11, 0.15); color: #fbbf24; }

.btn-copy-code {
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid var(--border-color);
  color: var(--text-primary);
  font-size: 11px;
  padding: 3px 8px;
  border-radius: 4px;
  cursor: pointer;
}

pre.code-block, pre.code-view {
  padding: 14px;
  font-family: var(--font-mono);
  font-size: 12px;
  color: #e2e8f0;
  overflow-x: auto;
  line-height: 1.5;
}

.key-box {
  background: rgba(0, 0, 0, 0.3);
  border: 1px solid var(--border-color);
  padding: 10px 12px;
  border-radius: var(--radius-sm);
  margin-bottom: 8px;
  font-family: var(--font-mono);
  font-size: 12.5px;
}

/* Modal */
.modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.75);
  backdrop-filter: blur(6px);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 1000;
  padding: 20px;
}

.modal-card {
  background: #111827;
  border: 1px solid rgba(99, 102, 241, 0.4);
  border-radius: var(--radius-lg);
  width: 100%;
  max-width: 820px;
  max-height: 86vh;
  display: flex;
  flex-direction: column;
  box-shadow: 0 24px 60px rgba(0, 0, 0, 0.8);
}

.modal-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 18px 22px;
  border-bottom: 1px solid var(--border-color);
}

.modal-header-btns {
  display: flex;
  align-items: center;
  gap: 10px;
}

.btn-close {
  background: transparent;
  border: none;
  color: var(--text-secondary);
  font-size: 26px;
  cursor: pointer;
  line-height: 1;
}

.modal-body {
  padding: 20px 22px;
  overflow-y: auto;
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.rationale-trace-box {
  background: rgba(0, 0, 0, 0.4);
  border: 1px solid var(--border-color);
  border-left: 3px solid var(--accent-cyan);
  border-radius: var(--radius-sm);
  padding: 14px;
  font-size: 13px;
  line-height: 1.6;
  white-space: pre-wrap;
  color: #e2e8f0;
}

.hidden {
  display: none !important;
}

.text-center {
  text-align: center;
}

.text-muted {
  color: var(--text-muted);
}

.empty-state {
  text-align: center;
  color: var(--text-muted);
  padding: 36px 20px;
  font-size: 14px;
}