/* ==========================================================================
   CIV.IO — Style & Identity Sheet (Phase 1)
   Art Direction: Tactical Cartographic Command Terminal
   Typography: Plus Jakarta Sans / Inter / JetBrains Mono (Numbers)
   Palette: Deep Navy Arena (#0B132B), Factions (Orange, Verte, Neutre, Gold)
   ========================================================================== */

:root {
  /* Core Arena Palette */
  --arena-bg: #070C1D;
  --arena-surface: #0B132B;
  --arena-surface-elevated: #111D3E;
  --arena-surface-glass: rgba(11, 19, 43, 0.82);
  --arena-border: rgba(148, 163, 184, 0.16);
  --arena-border-bright: rgba(148, 163, 184, 0.32);
  --arena-grid: rgba(71, 85, 105, 0.2);

  /* Faction Colors (Official Topology specs) */
  --faction-orange: #F37021;
  --faction-orange-bright: #FF8A3D;
  --faction-orange-glow: rgba(243, 112, 33, 0.38);
  --faction-orange-subtle: rgba(243, 112, 33, 0.15);

  --faction-verte: #0B6E3D;
  --faction-verte-bright: #1FA35E;
  --faction-verte-glow: rgba(11, 110, 61, 0.38);
  --faction-verte-subtle: rgba(11, 110, 61, 0.15);

  --faction-neutre: #64748B;
  --faction-neutre-bright: #94A3B8;
  --faction-neutre-glow: rgba(100, 116, 139, 0.3);
  --faction-neutre-subtle: rgba(100, 116, 139, 0.15);

  --accent-gold: #F59E0B;
  --accent-gold-glow: rgba(245, 158, 11, 0.35);
  --accent-cyan: #38BDF8;
  --accent-danger: #EF4444;

  /* Typography Colors */
  --text-primary: #F8FAFC;
  --text-secondary: #CBD5E1;
  --text-muted: #94A3B8;
  --text-dim: #64748B;

  /* Font Stacks */
  --font-sans: 'Plus Jakarta Sans', 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;
  --font-mono: 'JetBrains Mono', 'SF Mono', ui-monospace, Menlo, Monaco, Consolas, monospace;

  /* Geometry & Radii */
  --radius-sm: 4px;
  --radius-md: 8px;
  --radius-lg: 12px;
  --radius-full: 9999px;

  /* Elevation & Glows */
  --shadow-hud: 0 4px 20px -2px rgba(0, 0, 0, 0.65), 0 0 1px 1px rgba(255, 255, 255, 0.05);
  --shadow-card: 0 8px 30px rgba(0, 0, 0, 0.55);
}

/* ==========================================================================
   Réinitialisation CSS & Paramètres de Base
   ========================================================================== */

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

html, body {
  width: 100%;
  height: 100%;
  overflow: hidden;
  background-color: var(--arena-bg);
  color: var(--text-primary);
  font-family: var(--font-sans);
  font-size: 14px;
  line-height: 1.45;
  letter-spacing: -0.01em;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  touch-action: none;
  user-select: none;
  -webkit-user-select: none;
}

/* Tabular Numerics for badges, scores, counters */
.tabular-numbers,
.score-badge,
.troop-count,
.timer-display {
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  letter-spacing: -0.02em;
}

/* ==========================================================================
   Master Game Container Layout
   ========================================================================== */

#game-app {
  position: relative;
  width: 100vw;
  height: 100vh;
  display: flex;
  flex-direction: column;
  background: radial-gradient(circle at 50% 40%, #0d1736 0%, #070c1d 85%);
  overflow: hidden;
}

/* ==========================================================================
   Top Tactical HUD
   ========================================================================== */

#top-hud {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 64px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 16px;
  background: var(--arena-surface-glass);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--arena-border);
  box-shadow: var(--shadow-hud);
  z-index: 20;
}

.hud-left {
  display: flex;
  align-items: center;
  gap: 12px;
}

.brand-badge {
  display: flex;
  align-items: baseline;
  gap: 6px;
}

.brand-title {
  font-size: 1.15rem;
  font-weight: 800;
  letter-spacing: 0.05em;
  background: linear-gradient(135deg, #FFFFFF 30%, #CBD5E1 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.brand-version {
  font-size: 0.68rem;
  font-weight: 700;
  color: var(--accent-gold);
  background: rgba(245, 158, 11, 0.12);
  padding: 2px 6px;
  border-radius: var(--radius-sm);
  border: 1px solid rgba(245, 158, 11, 0.25);
  text-transform: uppercase;
}

.status-indicator {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 3px 10px;
  background: rgba(15, 23, 42, 0.7);
  border: 1px solid var(--arena-border);
  border-radius: var(--radius-full);
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--text-secondary);
}

.status-dot {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--faction-orange);
  box-shadow: 0 0 8px var(--faction-orange-bright);
}

.status-dot.paused {
  background: var(--accent-gold);
  box-shadow: 0 0 8px var(--accent-gold);
}

.status-dot.finished {
  background: var(--faction-verte);
  box-shadow: 0 0 8px var(--faction-verte-bright);
}

/* Central Scorebar & Timer */
.hud-center {
  flex: 1;
  max-width: 520px;
  margin: 0 20px;
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.scorebar-meta {
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 0.75rem;
  color: var(--text-muted);
}

.faction-legend {
  display: flex;
  align-items: center;
  gap: 12px;
}

.legend-item {
  display: flex;
  align-items: center;
  gap: 5px;
  font-size: 0.75rem;
  font-weight: 600;
}

.legend-item.orange { color: var(--faction-orange-bright); }
.legend-item.verte { color: var(--faction-verte-bright); }
.legend-item.neutre { color: var(--faction-neutre-bright); }

.legend-swatch {
  width: 8px;
  height: 8px;
  border-radius: 2px;
}
.legend-swatch.orange { background: var(--faction-orange); }
.legend-swatch.verte { background: var(--faction-verte); }
.legend-swatch.neutre { background: var(--faction-neutre); }

.timer-wrapper {
  display: flex;
  align-items: center;
  gap: 6px;
  color: var(--text-secondary);
  font-weight: 600;
}

.timer-icon {
  font-size: 0.85rem;
  color: var(--accent-cyan);
}

.timer-display {
  font-size: 0.85rem;
  color: var(--text-primary);
}

/* Multi-segmented Scorebar */
.scorebar-track {
  width: 100%;
  height: 8px;
  background: rgba(15, 23, 42, 0.9);
  border-radius: var(--radius-full);
  overflow: hidden;
  display: flex;
  border: 1px solid var(--arena-border);
  box-shadow: inset 0 1px 3px rgba(0, 0, 0, 0.6);
}

.scorebar-segment {
  height: 100%;
  transition: width 0.35s cubic-bezier(0.4, 0, 0.2, 1);
  position: relative;
}

.scorebar-segment.orange {
  background: linear-gradient(90deg, #EA580C, #F37021);
  box-shadow: 0 0 10px var(--faction-orange-glow);
}

.scorebar-segment.neutre {
  background: #475569;
}

.scorebar-segment.verte {
  background: linear-gradient(90deg, #0B6E3D, #1FA35E);
  box-shadow: 0 0 10px var(--faction-verte-glow);
}

/* Right Controls */
.hud-right {
  display: flex;
  align-items: center;
  gap: 8px;
}

.ai-selector-wrapper {
  display: flex;
  align-items: center;
  background: rgba(15, 23, 42, 0.8);
  border: 1px solid var(--arena-border);
  border-radius: var(--radius-md);
  padding: 2px 4px;
}

.ai-label {
  font-size: 0.72rem;
  font-weight: 600;
  color: var(--text-muted);
  padding: 0 6px;
  text-transform: uppercase;
}

.ai-select {
  background: transparent;
  border: none;
  color: var(--text-primary);
  font-family: var(--font-sans);
  font-size: 0.78rem;
  font-weight: 600;
  padding: 4px 6px;
  cursor: pointer;
  outline: none;
}

.ai-select option {
  background: var(--arena-surface);
  color: var(--text-primary);
}

/* Tactical HUD Buttons */
.hud-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  height: 34px;
  padding: 0 12px;
  background: rgba(30, 41, 59, 0.7);
  border: 1px solid var(--arena-border);
  border-radius: var(--radius-md);
  color: var(--text-secondary);
  font-family: var(--font-sans);
  font-size: 0.78rem;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.15s ease;
  white-space: nowrap;
}

.hud-btn:hover {
  background: rgba(51, 65, 85, 0.85);
  color: var(--text-primary);
  border-color: var(--arena-border-bright);
}

.hud-btn:active {
  transform: translateY(1px);
}

.hud-btn.icon-only {
  width: 34px;
  padding: 0;
}

.hud-btn.primary {
  background: rgba(243, 112, 33, 0.2);
  border-color: rgba(243, 112, 33, 0.4);
  color: var(--faction-orange-bright);
}

.hud-btn.primary:hover {
  background: rgba(243, 112, 33, 0.35);
  border-color: var(--faction-orange);
  color: #FFFFFF;
}

/* ==========================================================================
   Tactical Arena Canvas Container
   ========================================================================== */

#canvas-container {
  position: absolute;
  top: 64px;
  bottom: 56px;
  left: 0;
  right: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
  touch-action: none;
}

#game-canvas {
  display: block;
  width: 100%;
  height: 100%;
  touch-action: none;
  cursor: default;
}

#game-canvas.dragging {
  cursor: crosshair;
}

/* ==========================================================================
   Bottom Tactical Panel
   ========================================================================== */

#bottom-bar {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  height: 56px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 16px;
  background: var(--arena-surface-glass);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-top: 1px solid var(--arena-border);
  box-shadow: 0 -4px 20px -2px rgba(0, 0, 0, 0.4);
  z-index: 20;
}

.selection-card {
  display: flex;
  align-items: center;
  gap: 12px;
  min-width: 240px;
}

.selection-emblem {
  width: 34px;
  height: 34px;
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.1rem;
  background: rgba(30, 41, 59, 0.7);
  border: 1px solid var(--arena-border);
}

.selection-emblem.orange {
  border-color: var(--faction-orange);
  background: var(--faction-orange-subtle);
}

.selection-emblem.verte {
  border-color: var(--faction-verte);
  background: var(--faction-verte-subtle);
}

.selection-emblem.neutre {
  border-color: var(--faction-neutre);
  background: var(--faction-neutre-subtle);
}

.selection-details {
  display: flex;
  flex-direction: column;
}

.selection-header {
  display: flex;
  align-items: center;
  gap: 6px;
}

.selection-name {
  font-size: 0.86rem;
  font-weight: 700;
  color: var(--text-primary);
}

.selection-type {
  font-size: 0.68rem;
  padding: 1px 5px;
  border-radius: var(--radius-sm);
  background: rgba(255, 255, 255, 0.08);
  color: var(--text-muted);
}

.selection-stats {
  font-size: 0.72rem;
  color: var(--text-secondary);
  display: flex;
  gap: 8px;
}

.stat-item strong {
  color: var(--text-primary);
  font-family: var(--font-mono);
}

.tactical-hint {
  flex: 1;
  text-align: center;
  font-size: 0.78rem;
  color: var(--text-secondary);
  padding: 0 16px;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
}

.hint-icon {
  color: var(--faction-orange-bright);
}

.disclaimer-badge {
  font-size: 0.68rem;
  color: var(--text-dim);
  text-align: right;
  max-width: 280px;
  line-height: 1.25;
}

/* ==========================================================================
   Modals & Overlays (Tutorial, Victory, Defeat)
   ========================================================================== */

.modal-backdrop {
  position: absolute;
  inset: 0;
  background: rgba(7, 12, 29, 0.78);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 100;
  padding: 20px;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.25s ease;
}

.modal-backdrop.active {
  opacity: 1;
  pointer-events: auto;
}

.modal-card {
  width: 100%;
  max-width: 520px;
  background: var(--arena-surface-elevated);
  border: 1px solid var(--arena-border-bright);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-card);
  overflow: hidden;
  display: flex;
  flex-direction: column;
  transform: translateY(12px) scale(0.98);
  transition: transform 0.25s cubic-bezier(0.16, 1, 0.3, 1);
}

.modal-backdrop.active .modal-card {
  transform: translateY(0) scale(1);
}

.modal-header {
  padding: 18px 24px 14px;
  border-bottom: 1px solid var(--arena-border);
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.modal-title-wrap {
  display: flex;
  align-items: center;
  gap: 10px;
}

.modal-icon {
  font-size: 1.4rem;
}

.modal-title {
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--text-primary);
}

.modal-close-btn {
  background: transparent;
  border: none;
  color: var(--text-muted);
  font-size: 1.2rem;
  cursor: pointer;
  padding: 4px 8px;
  border-radius: var(--radius-sm);
  transition: color 0.15s ease;
}

.modal-close-btn:hover {
  color: var(--text-primary);
}

.modal-body {
  padding: 20px 24px;
  display: flex;
  flex-direction: column;
  gap: 16px;
  color: var(--text-secondary);
  font-size: 0.88rem;
  line-height: 1.55;
}

.modal-footer {
  padding: 16px 24px;
  border-top: 1px solid var(--arena-border);
  background: rgba(11, 19, 43, 0.4);
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: 10px;
}

/* Tutorial Specific Styles */
.tutorial-progress {
  display: flex;
  gap: 6px;
  margin-bottom: 8px;
}

.progress-pill {
  flex: 1;
  height: 4px;
  border-radius: 2px;
  background: rgba(255, 255, 255, 0.12);
  transition: background 0.2s ease;
}

.progress-pill.active {
  background: var(--faction-orange);
}

.tutorial-card {
  background: rgba(15, 23, 42, 0.6);
  border: 1px solid var(--arena-border);
  border-radius: var(--radius-md);
  padding: 16px;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.tutorial-step-tag {
  font-size: 0.72rem;
  font-weight: 700;
  text-transform: uppercase;
  color: var(--faction-orange-bright);
}

.tutorial-heading {
  font-size: 1rem;
  font-weight: 700;
  color: var(--text-primary);
}

.tutorial-illustration {
  margin-top: 8px;
  padding: 14px;
  border-radius: var(--radius-md);
  background: rgba(7, 12, 29, 0.7);
  border: 1px dashed var(--arena-border);
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 14px;
  font-size: 0.82rem;
  color: var(--text-secondary);
}

/* Victory / Defeat specific badges */
.result-banner {
  text-align: center;
  padding: 16px 0 8px;
}

.result-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 1.35rem;
  font-weight: 800;
  letter-spacing: 0.04em;
  padding: 8px 20px;
  border-radius: var(--radius-full);
}

.result-badge.victory {
  background: rgba(245, 158, 11, 0.15);
  color: var(--accent-gold);
  border: 1px solid rgba(245, 158, 11, 0.4);
  box-shadow: 0 0 20px var(--accent-gold-glow);
}

.result-badge.defeat {
  background: rgba(239, 68, 68, 0.15);
  color: var(--accent-danger);
  border: 1px solid rgba(239, 68, 68, 0.4);
}

.stats-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 10px;
  margin: 12px 0;
}

.stat-box {
  background: rgba(15, 23, 42, 0.65);
  border: 1px solid var(--arena-border);
  border-radius: var(--radius-md);
  padding: 12px;
  text-align: center;
}

.stat-box-val {
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--text-primary);
  font-family: var(--font-mono);
}

.stat-box-lbl {
  font-size: 0.7rem;
  color: var(--text-muted);
  text-transform: uppercase;
  margin-top: 4px;
}

/* Primary Modal Action Button */
.btn-action-primary {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 10px 20px;
  background: linear-gradient(135deg, #F37021 0%, #EA580C 100%);
  color: #FFFFFF;
  border: none;
  border-radius: var(--radius-md);
  font-family: var(--font-sans);
  font-size: 0.88rem;
  font-weight: 700;
  cursor: pointer;
  box-shadow: 0 4px 14px var(--faction-orange-glow);
  transition: all 0.15s ease;
}

.btn-action-primary:hover {
  background: linear-gradient(135deg, #FF8A3D 0%, #F37021 100%);
  transform: translateY(-1px);
  box-shadow: 0 6px 18px var(--faction-orange-glow);
}

.btn-action-primary:active {
  transform: translateY(1px);
}

.btn-action-secondary {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 10px 16px;
  background: rgba(30, 41, 59, 0.7);
  color: var(--text-secondary);
  border: 1px solid var(--arena-border);
  border-radius: var(--radius-md);
  font-family: var(--font-sans);
  font-size: 0.85rem;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.15s ease;
}

.btn-action-secondary:hover {
  background: rgba(51, 65, 85, 0.8);
  color: var(--text-primary);
}

/* ==========================================================================
   Mobile & Responsive Adaptations
   ========================================================================== */

@media (max-width: 768px) {
  #top-hud {
    height: 56px;
    padding: 0 10px;
    gap: 6px;
  }

  .hud-center {
    margin: 0 6px;
    min-width: 0;
  }

  .legend-item.neutre {
    display: none; /* Keep orange & verte on compact screens */
  }

  .ai-label {
    display: none;
  }

  #bottom-bar {
    height: 52px;
    padding: 0 10px;
  }

  .tactical-hint {
    display: none; /* Avoid overflowing bottom bar on mobile */
  }

  .disclaimer-badge {
    font-size: 0.6rem;
    max-width: 170px;
  }

  #canvas-container {
    top: 56px;
    bottom: 52px;
  }
}

@media (max-width: 480px) {
  #top-hud {
    height: auto;
    min-height: 58px;
    flex-wrap: wrap;
    padding: 6px 10px;
    row-gap: 4px;
  }

  .hud-left {
    order: 1;
  }

  .hud-right {
    order: 2;
    gap: 4px;
  }

  .hud-center {
    order: 3;
    width: 100%;
    max-width: 100%;
    margin: 2px 0 0 0;
  }

  .scorebar-meta {
    margin-bottom: 2px;
    justify-content: space-between;
  }

  .brand-version {
    display: none;
  }

  .status-indicator span:not(.status-dot) {
    display: none;
  }

  .status-indicator {
    padding: 4px;
    border-radius: var(--radius-full);
  }

  .timer-wrapper {
    font-size: 0.72rem;
  }

  .hud-btn span:not(.btn-icon) {
    display: none;
  }

  .hud-btn {
    padding: 0 8px;
    height: 30px;
  }

  .ai-select {
    padding: 2px 4px;
    font-size: 0.72rem;
    height: 30px;
  }

  .disclaimer-badge {
    display: none;
  }

  .selection-details {
    overflow: hidden;
  }

  .selection-stats {
    gap: 8px;
    font-size: 0.75rem;
  }

  #canvas-container {
    top: 68px;
    bottom: 52px;
  }
}