/* ═══════════════════════════════════════════════════════════════════════════════
   ÉvoSim — Thème gaming néon sombre
   ═══════════════════════════════════════════════════════════════════════════════ */

:root {
  --bg:        #090912;
  --surface:   #111128;
  --surface2:  #18182e;
  --primary:   #00ffaa;
  --secondary: #ff00ff;
  --accent:    #ffaa00;
  --danger:    #ff3344;
  --info:      #44aaff;
  --text:      #e0e0ff;
  --dim:       #666688;
  --border:    #2a2a4a;
  --glow-p:    0 0 12px #00ffaa66;
  --glow-s:    0 0 12px #ff00ff66;
  --glow-a:    0 0 12px #ffaa0066;
  --radius:    8px;
}

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

html, body {
  height: 100%;
  background: var(--bg);
  color: var(--text);
  font-family: 'Orbitron', monospace, sans-serif;
  font-size: 14px;
  overflow: hidden;
}

/* ─── Écrans ─────────────────────────────────────────────────────────────────── */
.screen { display: none; width: 100vw; height: 100vh; overflow: hidden; }
.screen.active { display: flex; flex-direction: column; }

/* ─── LaunchScreen ───────────────────────────────────────────────────────────── */
#screen-launch {
  overflow-y: auto;
  flex-direction: column;
  align-items: center;
  background: radial-gradient(ellipse at 50% 0%, #1a0a3a 0%, var(--bg) 65%);
}

.launch-container {
  width: 100%;
  max-width: 900px;
  padding: 32px 24px 80px;
  display: flex;
  flex-direction: column;
  gap: 28px;
}

.logo {
  font-size: 3rem;
  font-weight: 900;
  letter-spacing: 0.08em;
  color: var(--primary);
  text-shadow: var(--glow-p);
  text-align: center;
}
.logo .accent { color: var(--secondary); text-shadow: var(--glow-s); }
.tagline { text-align: center; color: var(--dim); font-size: 0.8rem; letter-spacing: 0.12em; margin-top: -20px; }

/* Sections config */
.config-section {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 20px;
}
.config-section h2 {
  font-size: 0.8rem;
  letter-spacing: 0.15em;
  color: var(--primary);
  margin-bottom: 14px;
  text-transform: uppercase;
}

/* Avatar */
.avatar-choice { display: flex; gap: 12px; }
.avatar-btn {
  flex: 1;
  padding: 12px;
  background: var(--surface2);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  color: var(--dim);
  font-family: inherit;
  font-size: 0.9rem;
  cursor: pointer;
  transition: all 0.2s;
}
.avatar-btn.active, .avatar-btn:hover {
  border-color: var(--primary);
  color: var(--primary);
  box-shadow: var(--glow-p);
}

/* Biomes */
.biome-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 10px;
}
.biome-card {
  background: var(--surface2);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 12px;
  cursor: pointer;
  transition: all 0.2s;
  text-align: center;
}
.biome-card:hover { border-color: var(--accent); transform: translateY(-2px); }
.biome-card.active { border-color: var(--primary); box-shadow: var(--glow-p); }
.biome-emoji { font-size: 1.8rem; margin-bottom: 4px; }
.biome-name  { font-size: 0.75rem; font-weight: 700; color: var(--text); margin-bottom: 4px; }
.biome-desc  { font-size: 0.6rem; color: var(--dim); line-height: 1.4; font-family: monospace; }

/* Objectifs */
.objective-choice { display: flex; gap: 10px; flex-wrap: wrap; }
.obj-btn {
  flex: 1;
  min-width: 120px;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 10px;
  background: var(--surface2);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  cursor: pointer;
  transition: all 0.2s;
  font-size: 0.8rem;
}
.obj-btn input { display: none; }
.obj-btn.active, .obj-btn:hover { border-color: var(--accent); color: var(--accent); box-shadow: var(--glow-a); }

/* Sliders */
.sliders-grid { display: flex; flex-direction: column; gap: 10px; }
.slider-row {
  display: grid;
  grid-template-columns: 180px 1fr;
  align-items: center;
  gap: 12px;
}
.slider-row label {
  font-size: 0.75rem;
  color: var(--dim);
  display: flex;
  justify-content: space-between;
}
.slider-row.inline { flex-direction: row; align-items: center; gap: 8px; }
.val { color: var(--primary); font-weight: 700; min-width: 40px; text-align: right; }

input[type="range"] {
  -webkit-appearance: none;
  appearance: none;
  height: 4px;
  background: var(--border);
  border-radius: 2px;
  outline: none;
  width: 100%;
}
input[type="range"]::-webkit-slider-thumb {
  -webkit-appearance: none;
  width: 14px;
  height: 14px;
  border-radius: 50%;
  background: var(--primary);
  box-shadow: 0 0 8px var(--primary);
  cursor: pointer;
}

/* Prédateurs */
.pred-row {
  display: flex;
  align-items: center;
  gap: 16px;
  flex-wrap: wrap;
}
#pred-options { display: flex; align-items: center; gap: 12px; flex-wrap: wrap; }
.toggle-label { display: flex; align-items: center; gap: 6px; cursor: pointer; font-size: 0.8rem; }
select {
  background: var(--surface2);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  color: var(--text);
  padding: 6px 10px;
  font-family: inherit;
  font-size: 0.8rem;
  cursor: pointer;
}

/* Sélection */
.selection-mode { margin-top: 14px; display: flex; flex-direction: column; gap: 8px; }
.selection-mode > label { font-size: 0.75rem; color: var(--dim); }
.sel-modes { display: flex; gap: 8px; }
.sel-btn {
  padding: 6px 14px;
  background: var(--surface2);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  cursor: pointer;
  font-size: 0.75rem;
  transition: all 0.2s;
}
.sel-btn input { display: none; }
.sel-btn.active, .sel-btn:hover { border-color: var(--info); color: var(--info); }
.sel-params { display: flex; align-items: center; gap: 8px; margin-top: 6px; }
.sel-params input[type="number"] {
  width: 80px;
  background: var(--surface2);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  color: var(--text);
  padding: 5px 8px;
  font-family: inherit;
  font-size: 0.8rem;
}

/* Reproduction */
.repro-mode { margin-top: 10px; display: flex; align-items: center; gap: 12px; flex-wrap: wrap; }
.repro-mode > label { font-size: 0.75rem; color: var(--dim); }
.rep-btn {
  padding: 6px 14px;
  background: var(--surface2);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  cursor: pointer;
  font-size: 0.75rem;
  transition: all 0.2s;
}
.rep-btn input { display: none; }
.rep-btn.active, .rep-btn:hover { border-color: var(--secondary); color: var(--secondary); }

/* ─── Mutations ─────────────────────────────────────────────────────────────── */
.mut-options-header {
  display: flex;
  gap: 20px;
  flex-wrap: wrap;
  margin-bottom: 12px;
  padding-bottom: 10px;
  border-bottom: 1px solid var(--border);
}

.mut-gene-row {
  display: grid;
  grid-template-columns: 170px 1fr;
  align-items: center;
  gap: 8px;
  padding: 5px 0;
  border-bottom: 1px solid rgba(42,42,74,0.4);
}
.mut-gene-row:last-child { border-bottom: none; }

.mut-check-label {
  display: flex;
  align-items: center;
  gap: 6px;
  cursor: pointer;
  font-size: 0.7rem;
}
.mut-gene-name { font-size: 0.7rem; font-weight: 700; }

.mut-slider-group {
  display: flex;
  align-items: center;
  gap: 8px;
}
.mut-rate-slider { flex: 1; }
.mut-rate-val {
  font-size: 0.65rem;
  color: var(--primary);
  min-width: 34px;
  text-align: right;
  font-weight: 700;
}

/* ─── Collapsible accordion ──────────────────────────────────────────────────── */
h3.collapsible {
  cursor: pointer;
  user-select: none;
  display: flex;
  align-items: center;
  transition: color 0.2s;
}
h3.collapsible::after {
  content: '▾';
  font-size: 0.85em;
  margin-left: auto;
  transition: transform 0.25s;
  color: var(--dim);
}
h3.collapsible.collapsed { color: var(--dim); }
h3.collapsible.collapsed::after { transform: rotate(-90deg); }

h3.collapsible + * {
  overflow: hidden;
  max-height: 2000px;
  opacity: 1;
  transition: max-height 0.35s ease, opacity 0.25s;
}
h3.collapsible + *.collapsed {
  max-height: 0 !important;
  opacity: 0;
}

/* Adaptive boost stat row */
.adaptive-row {
  background: rgba(255,170,0,0.08);
  border-radius: 4px;
  padding: 2px 6px;
  margin-top: 2px;
}

/* Seed */
.seed-section .seed-row { display: flex; gap: 10px; align-items: center; }
.seed-section input[type="text"] {
  flex: 1;
  background: var(--surface2);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  color: var(--text);
  padding: 7px 12px;
  font-family: inherit;
  font-size: 0.85rem;
  letter-spacing: 0.1em;
}
.seed-code { font-size: 0.75rem; color: var(--dim); margin-top: 6px; display: block; }

/* Actions lancement */
.launch-actions {
  display: flex;
  gap: 14px;
  justify-content: center;
  margin-top: 8px;
}

/* ─── Boutons ─────────────────────────────────────────────────────────────────── */
.btn-primary {
  padding: 14px 36px;
  background: transparent;
  border: 2px solid var(--primary);
  border-radius: var(--radius);
  color: var(--primary);
  font-family: inherit;
  font-size: 1rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  cursor: pointer;
  transition: all 0.2s;
  text-shadow: var(--glow-p);
  box-shadow: var(--glow-p);
}
.btn-primary:hover { background: var(--primary); color: var(--bg); }

.btn-secondary {
  padding: 14px 28px;
  background: transparent;
  border: 1px solid var(--dim);
  border-radius: var(--radius);
  color: var(--dim);
  font-family: inherit;
  font-size: 0.9rem;
  cursor: pointer;
  transition: all 0.2s;
}
.btn-secondary:hover { border-color: var(--text); color: var(--text); }

.btn-sm {
  padding: 6px 14px;
  background: var(--surface2);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  color: var(--text);
  font-family: inherit;
  font-size: 0.75rem;
  cursor: pointer;
  transition: all 0.2s;
  white-space: nowrap;
}
.btn-sm:hover { border-color: var(--primary); color: var(--primary); }
.btn-sm.btn-danger { border-color: var(--danger); color: var(--danger); }
.btn-sm.btn-danger:hover { background: var(--danger); color: #fff; }

.btn-icon {
  width: 36px;
  height: 36px;
  background: var(--surface2);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  color: var(--text);
  font-size: 1rem;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all 0.2s;
}
.btn-icon:hover { border-color: var(--primary); color: var(--primary); }

/* ─── SimScreen ───────────────────────────────────────────────────────────────── */
#screen-sim { flex-direction: column; }

.sim-toolbar {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 8px 12px;
  background: var(--surface);
  border-bottom: 1px solid var(--border);
  flex-shrink: 0;
  flex-wrap: nowrap;
  overflow-x: auto;
  z-index: 10;
}

.speed-btns { display: flex; gap: 4px; }
.btn-speed {
  padding: 5px 10px;
  background: var(--surface2);
  border: 1px solid var(--border);
  border-radius: 4px;
  color: var(--dim);
  font-family: inherit;
  font-size: 0.7rem;
  cursor: pointer;
  transition: all 0.15s;
}
.btn-speed.active { border-color: var(--primary); color: var(--primary); box-shadow: var(--glow-p); }
.btn-speed:hover  { border-color: var(--text); color: var(--text); }

.ultra-group { display: flex; align-items: center; gap: 6px; }
.ultra-group input {
  background: var(--surface2);
  border: 1px solid var(--border);
  border-radius: 4px;
  color: var(--text);
  padding: 4px 6px;
  font-family: inherit;
  font-size: 0.75rem;
}

.infobar {
  flex: 1;
  text-align: center;
  font-size: 0.7rem;
  color: var(--dim);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  letter-spacing: 0.05em;
}

.sim-body {
  flex: 1;
  display: flex;
  overflow: hidden;
  position: relative;
}

#sim-canvas {
  flex: 1;
  display: block;
  background: #090912;
  cursor: crosshair;
}

/* ─── Side panel ─────────────────────────────────────────────────────────────── */
.side-panel {
  width: 300px;
  flex-shrink: 0;
  background: var(--surface);
  border-left: 1px solid var(--border);
  display: flex;
  flex-direction: column;
  overflow-y: auto;
  padding: 0 0 16px 0;
  transition: width 0.2s;
}
.side-panel.hidden { display: none; }

.panel-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 12px 14px;
  background: var(--surface2);
  border-bottom: 1px solid var(--border);
  font-size: 0.8rem;
  color: var(--primary);
  font-weight: 700;
  position: sticky;
  top: 0;
}
.panel-section {
  padding: 12px 14px;
  border-bottom: 1px solid var(--border);
}
.panel-section h4 {
  font-size: 0.65rem;
  color: var(--dim);
  letter-spacing: 0.12em;
  margin-bottom: 10px;
  text-transform: uppercase;
}

/* Gènes */
.panel-genes { padding: 12px 14px; border-bottom: 1px solid var(--border); }
.gene-row {
  display: grid;
  grid-template-columns: 80px 1fr 42px;
  align-items: center;
  gap: 8px;
  margin-bottom: 6px;
}
.gene-name { font-size: 0.62rem; color: var(--dim); }
.gene-bar-bg {
  height: 6px;
  background: var(--surface2);
  border-radius: 3px;
  overflow: hidden;
}
.gene-bar-fill { height: 100%; border-radius: 3px; transition: width 0.3s; }
.gene-val { font-size: 0.65rem; color: var(--text); text-align: right; }

/* Stats panel */
.panel-stats { padding: 12px 14px; }
.stat-row {
  display: flex;
  justify-content: space-between;
  font-size: 0.7rem;
  color: var(--dim);
  margin-bottom: 5px;
}
.stat-row .val, .stat-row b { color: var(--primary); }

/* NN canvas */
#nn-canvas { border: 1px solid var(--border); border-radius: 4px; display: block; width: 100%; }

/* ─── Ultra-fast overlay ─────────────────────────────────────────────────────── */
.ultra-overlay {
  position: absolute;
  inset: 0;
  background: rgba(0,0,0,0.82);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 100;
}
.ultra-overlay.hidden { display: none; }
.ultra-box {
  background: var(--surface);
  border: 1px solid var(--primary);
  border-radius: var(--radius);
  padding: 32px 48px;
  text-align: center;
  box-shadow: var(--glow-p);
  display: flex;
  flex-direction: column;
  gap: 16px;
  min-width: 320px;
}
.ultra-title { font-size: 1.1rem; color: var(--primary); font-weight: 700; letter-spacing: 0.1em; }
.ultra-progress {
  height: 8px;
  background: var(--surface2);
  border-radius: 4px;
  overflow: hidden;
}
.ultra-bar {
  height: 100%;
  width: 0%;
  background: linear-gradient(90deg, var(--primary), var(--secondary));
  border-radius: 4px;
  transition: width 0.1s;
}

/* ─── ResultsScreen ──────────────────────────────────────────────────────────── */
#screen-results {
  flex-direction: column;
  overflow: hidden;
}

.results-header {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 14px 20px;
  background: var(--surface);
  border-bottom: 1px solid var(--border);
  flex-shrink: 0;
}
.results-header h2 { flex: 1; font-size: 0.9rem; color: var(--text); }

.results-body {
  flex: 1;
  display: grid;
  grid-template-columns: 340px 1fr;
  gap: 0;
  overflow: hidden;
}

.results-left {
  border-right: 1px solid var(--border);
  overflow-y: auto;
  padding: 16px;
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.results-right {
  overflow-y: auto;
  padding: 16px;
  display: flex;
  flex-direction: column;
  gap: 12px;
}
.results-right h3 { font-size: 0.75rem; color: var(--dim); letter-spacing: 0.1em; text-transform: uppercase; }

.stats-box, .survivors-box {
  background: var(--surface2);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 14px;
}
.stats-box h3, .survivors-box h3 {
  font-size: 0.7rem;
  color: var(--dim);
  letter-spacing: 0.12em;
  margin-bottom: 10px;
  text-transform: uppercase;
}

.gene-row-res {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 0.7rem;
  color: var(--dim);
  margin-bottom: 5px;
}
.gene-row-res .gene-name { min-width: 90px; font-size: 0.65rem; }
.gene-row-res b { color: var(--text); }

.export-btns { display: flex; gap: 10px; flex-wrap: wrap; }

/* Charts */
#chart-genes, #chart-fitness { max-height: 220px; }

/* ─── Scrollbar ───────────────────────────────────────────────────────────────── */
::-webkit-scrollbar            { width: 6px; height: 6px; }
::-webkit-scrollbar-track      { background: var(--surface); }
::-webkit-scrollbar-thumb      { background: var(--border); border-radius: 3px; }
::-webkit-scrollbar-thumb:hover { background: var(--dim); }

/* ─── Inputs checkbox ────────────────────────────────────────────────────────── */
input[type="checkbox"] { accent-color: var(--primary); }

/* ─── Responsive ─────────────────────────────────────────────────────────────── */
@media (max-width: 680px) {
  .biome-grid           { grid-template-columns: repeat(2, 1fr); }
  .results-body         { grid-template-columns: 1fr; }
  .results-left         { border-right: none; border-bottom: 1px solid var(--border); }
}