/* ============================================================
   Explorateur de Fractales — feuille de style
   Palette : fond #080c14 · cyan #00d4ff · vert #00ff9f · violet #9d4edd
   Polices  : Space Grotesk (UI) · JetBrains Mono (code)
   ============================================================ */

@import url('https://fonts.googleapis.com/css2?family=Space+Grotesk:wght@300;400;500;600;700&family=JetBrains+Mono:wght@400;500&display=swap');

/* ---- Réinitialisation et variables ---- */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

:root {
  --bg:          #080c14;
  --bg-panel:    rgba(8, 14, 28, 0.92);
  --bg-code:     #0b1120;
  --border:      rgba(0, 212, 255, 0.18);
  --border-glow: rgba(0, 212, 255, 0.45);
  --cyan:        #00d4ff;
  --cyan-dim:    rgba(0, 212, 255, 0.6);
  --green:       #00ff9f;
  --purple:      #9d4edd;
  --text:        #cdd6f4;
  --text-dim:    #6b7a99;
  --text-bright: #e8eeff;
  --font-ui:     'Space Grotesk', system-ui, sans-serif;
  --font-code:   'JetBrains Mono', 'Fira Code', monospace;
  --radius:      8px;
  --radius-lg:   14px;
  --sidebar-w:   380px;
  --header-h:    48px;
  --controls-h:  64px;
  --transition:  0.25s ease;
}

html, body {
  height: 100%;
  overflow: hidden;
  background: var(--bg);
  color: var(--text);
  font-family: var(--font-ui);
  font-size: 14px;
  line-height: 1.5;
}

/* ============================================================
   STRUCTURE DE PAGE
   ============================================================ */

#app {
  display: grid;
  grid-template-rows: var(--header-h) 1fr var(--controls-h);
  grid-template-columns: 1fr var(--sidebar-w);
  grid-template-areas:
    "header  header"
    "canvas  sidebar"
    "controls controls";
  height: 100vh;
  width: 100vw;
}

/* ---- En-tête ---- */
#header {
  grid-area: header;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 20px;
  background: rgba(8, 12, 22, 0.98);
  border-bottom: 1px solid var(--border);
  backdrop-filter: blur(10px);
  z-index: 10;
}

.header-brand {
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 600;
  font-size: 15px;
  letter-spacing: 0.03em;
  color: var(--text-bright);
}

.header-brand .logo-icon {
  width: 28px;
  height: 28px;
  flex-shrink: 0;
}

.header-brand span {
  color: var(--cyan);
}

.header-actions {
  display: flex;
  align-items: center;
  gap: 8px;
}

/* ---- Zone canvas ---- */
#canvas-container {
  grid-area: canvas;
  position: relative;
  overflow: hidden;
  background: #000;
  cursor: crosshair;
}

#fractal-canvas {
  display: block;
  width: 100%;
  height: 100%;
}

/* Overlay de rendu (indicateur de progression) */
#render-overlay {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: flex-start;
  justify-content: flex-end;
  padding: 12px;
  pointer-events: none;
}

#render-status {
  font-family: var(--font-code);
  font-size: 11px;
  color: var(--cyan-dim);
  background: rgba(8, 12, 20, 0.75);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 4px 10px;
  letter-spacing: 0.05em;
  transition: opacity var(--transition);
}

#render-status.hidden { opacity: 0; }

/* Coordonnées du curseur */
#coords-display {
  position: absolute;
  bottom: 10px;
  left: 12px;
  font-family: var(--font-code);
  font-size: 11px;
  color: var(--cyan-dim);
  background: rgba(8, 12, 20, 0.75);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 4px 10px;
  pointer-events: none;
}

/* ---- Panneau latéral ---- */
#sidebar {
  grid-area: sidebar;
  display: flex;
  flex-direction: column;
  background: var(--bg-panel);
  border-left: 1px solid var(--border);
  backdrop-filter: blur(12px);
  overflow: hidden;
  transition: width var(--transition);
}

#sidebar.collapsed {
  width: 0;
  border-left: none;
}

#sidebar-inner {
  display: flex;
  flex-direction: column;
  height: 100%;
  width: var(--sidebar-w);
  overflow: hidden;
}

/* En-tête du panneau latéral */
.sidebar-header {
  padding: 12px 16px;
  border-bottom: 1px solid var(--border);
  flex-shrink: 0;
}

.sidebar-header h2 {
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--cyan);
}

/* Badge benchmark */
#benchmark-badge {
  margin: 12px 16px;
  padding: 10px 14px;
  background: rgba(0, 212, 255, 0.06);
  border: 1px solid rgba(0, 212, 255, 0.25);
  border-radius: var(--radius);
  flex-shrink: 0;
}

.badge-row {
  display: flex;
  align-items: center;
  gap: 8px;
  font-family: var(--font-code);
  font-size: 12px;
}

.badge-row + .badge-row {
  margin-top: 5px;
}

.badge-wasm {
  color: var(--green);
  font-weight: 500;
}

.badge-python {
  color: var(--text-dim);
}

.badge-speedup {
  color: var(--cyan);
  font-weight: 600;
  font-size: 13px;
}

.badge-label {
  color: var(--text-dim);
  font-size: 11px;
}

#badge-loading {
  font-family: var(--font-code);
  font-size: 11px;
  color: var(--text-dim);
  padding: 8px 14px;
}

/* Onglets source code */
.code-tabs {
  display: flex;
  gap: 2px;
  padding: 8px 16px 0;
  flex-shrink: 0;
}

.tab-btn {
  background: none;
  border: 1px solid transparent;
  border-radius: var(--radius) var(--radius) 0 0;
  color: var(--text-dim);
  cursor: pointer;
  font-family: var(--font-code);
  font-size: 11px;
  padding: 6px 14px;
  transition: all var(--transition);
  letter-spacing: 0.03em;
}

.tab-btn:hover {
  color: var(--text-bright);
  border-color: var(--border);
}

.tab-btn.active {
  background: var(--bg-code);
  border-color: var(--border);
  border-bottom-color: var(--bg-code);
  color: var(--cyan);
}

/* Panneau de code */
.code-panel {
  flex: 1;
  overflow: hidden;
  background: var(--bg-code);
  border-top: 1px solid var(--border);
  position: relative;
}

.code-scroll {
  position: absolute;
  inset: 0;
  overflow-y: auto;
  overflow-x: auto;
  padding: 14px;
}

.code-scroll::-webkit-scrollbar {
  width: 5px;
  height: 5px;
}
.code-scroll::-webkit-scrollbar-track { background: transparent; }
.code-scroll::-webkit-scrollbar-thumb {
  background: var(--border);
  border-radius: 3px;
}

pre {
  font-family: var(--font-code);
  font-size: 12px;
  line-height: 1.7;
  margin: 0;
  white-space: pre;
  tab-size: 4;
}

/* Coloration syntaxique */
.kw     { color: #c792ea; font-weight: 500; }  /* violet — mots-clés */
.fn     { color: #82aaff; }                     /* bleu   — fonctions */
.num    { color: #f78c6c; }                     /* orange — nombres */
.str    { color: #c3e88d; }                     /* vert   — chaînes */
.cmt    { color: #546e7a; font-style: italic; } /* gris   — commentaires */
.op     { color: #89ddff; }                     /* cyan   — opérateurs */
.param  { color: #ffcb6b; }                     /* jaune  — paramètres */

/* ---- Barre de contrôles ---- */
#controls {
  grid-area: controls;
  display: flex;
  align-items: center;
  gap: 16px;
  padding: 0 20px;
  background: rgba(8, 12, 22, 0.98);
  border-top: 1px solid var(--border);
  backdrop-filter: blur(10px);
  z-index: 10;
}

.control-group {
  display: flex;
  align-items: center;
  gap: 8px;
}

.control-label {
  font-size: 12px;
  font-weight: 500;
  color: var(--text-dim);
  white-space: nowrap;
}

.control-value {
  font-family: var(--font-code);
  font-size: 12px;
  color: var(--cyan);
  min-width: 36px;
  text-align: right;
}

/* Curseur (slider) */
input[type="range"] {
  -webkit-appearance: none;
  width: 140px;
  height: 3px;
  background: var(--border);
  border-radius: 2px;
  outline: none;
  cursor: pointer;
}

input[type="range"]::-webkit-slider-thumb {
  -webkit-appearance: none;
  width: 14px;
  height: 14px;
  background: var(--cyan);
  border-radius: 50%;
  box-shadow: 0 0 8px rgba(0, 212, 255, 0.6);
  cursor: pointer;
  transition: transform 0.15s;
}

input[type="range"]::-webkit-slider-thumb:hover {
  transform: scale(1.25);
}

/* Séparateur vertical */
.ctrl-sep {
  width: 1px;
  height: 24px;
  background: var(--border);
  flex-shrink: 0;
}

/* Select palette */
select {
  background: rgba(8, 14, 28, 0.9);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  color: var(--text);
  font-family: var(--font-ui);
  font-size: 13px;
  padding: 5px 26px 5px 10px;
  cursor: pointer;
  outline: none;
  -webkit-appearance: none;
  appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='10' height='6' viewBox='0 0 10 6'%3E%3Cpath d='M0 0l5 6 5-6z' fill='%2300d4ff'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 8px center;
  transition: border-color var(--transition);
}

select:hover, select:focus {
  border-color: var(--border-glow);
}

/* Boutons */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: rgba(0, 212, 255, 0.08);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  color: var(--cyan-dim);
  cursor: pointer;
  font-family: var(--font-ui);
  font-size: 12px;
  font-weight: 500;
  padding: 6px 14px;
  transition: all var(--transition);
  white-space: nowrap;
}

.btn:hover {
  background: rgba(0, 212, 255, 0.18);
  border-color: var(--border-glow);
  color: var(--cyan);
  box-shadow: 0 0 12px rgba(0, 212, 255, 0.2);
}

.btn:active {
  transform: scale(0.97);
}

.btn-icon {
  font-size: 14px;
}

/* Bouton toggle sidebar */
#btn-toggle-sidebar {
  background: rgba(0, 212, 255, 0.06);
}

/* ============================================================
   ÉTATS SPÉCIAUX
   ============================================================ */

/* Rendu en cours — curseur de chargement */
.rendering #fractal-canvas {
  cursor: wait;
}

/* ============================================================
   MODAL D'INFO (aide au zoom)
   ============================================================ */
#zoom-hint {
  position: absolute;
  bottom: 12px;
  left: 50%;
  transform: translateX(-50%);
  background: rgba(8, 12, 20, 0.88);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 6px 16px;
  font-size: 11px;
  color: var(--text-dim);
  pointer-events: none;
  transition: opacity 1s ease;
  white-space: nowrap;
}

#zoom-hint.fade-out {
  opacity: 0;
}

/* ============================================================
   RESPONSIVE : masquer sidebar sur petits écrans
   ============================================================ */
@media (max-width: 820px) {
  :root {
    --sidebar-w: 0px;
  }

  #app {
    grid-template-columns: 1fr;
    grid-template-areas:
      "header"
      "canvas"
      "controls";
  }

  #sidebar {
    display: none;
  }

  #btn-toggle-sidebar {
    display: none;
  }
}

@media (max-width: 540px) {
  #controls {
    gap: 8px;
    padding: 0 10px;
    overflow-x: auto;
  }

  input[type="range"] {
    width: 90px;
  }
}

/* ============================================================
   ANIMATION DE CHARGEMENT INITIAL
   ============================================================ */
@keyframes pulse-glow {
  0%, 100% { opacity: 0.5; }
  50%       { opacity: 1.0; }
}

.loading-pulse {
  animation: pulse-glow 1.4s ease-in-out infinite;
}

/* Scan line effect subtil sur le canvas */
#canvas-container::after {
  content: '';
  position: absolute;
  inset: 0;
  background: repeating-linear-gradient(
    0deg,
    transparent,
    transparent 2px,
    rgba(0, 0, 0, 0.03) 2px,
    rgba(0, 0, 0, 0.03) 4px
  );
  pointer-events: none;
  z-index: 1;
}