/* =====================================================
   STYLE.CSS — PCD 2026 Visualizador Generativo
   Processing Community Day 2026 — Santiago, Chile
   Dark theme: #111 bg / #1a1a1a panels / #fff text
   ===================================================== */

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

:root {
  --bg:        #111111;
  --surface:   #1a1a1a;
  --raised:    #222222;
  --border:    #2e2e2e;
  --border-hi: #404040;
  --text:      #ffffff;
  --text-2:    #aaaaaa;
  --text-3:    #666666;
  --accent:    #0033ff;
  --accent-hi: #3366ff;
  --danger:    #ff3333;
  --toolbar-h: 40px;
  --sidebar-w: 260px;
  --font:      'Space Mono', 'JetBrains Mono', 'Fira Code', monospace;
  --radius:    0px;
}

html, body {
  height: 100%;
  overflow: hidden;
  background: var(--bg);
  color: var(--text);
  font-family: var(--font);
  font-size: 11px;
  line-height: 1.4;
  -webkit-font-smoothing: antialiased;
}

/* ─── Scrollbar ─────────────────────────────────────── */
::-webkit-scrollbar        { width: 4px; height: 4px; }
::-webkit-scrollbar-track  { background: transparent; }
::-webkit-scrollbar-thumb  { background: #444; border-radius: 0; }
::-webkit-scrollbar-thumb:hover { background: #666; }

/* ─── Toolbar ───────────────────────────────────────── */
#toolbar {
  position: fixed;
  top: 0; left: 0; right: 0;
  height: var(--toolbar-h);
  background: var(--bg);
  border-bottom: 1px solid var(--border);
  display: flex;
  align-items: center;
  padding: 0 12px;
  gap: 8px;
  z-index: 100;
  user-select: none;
}

.tb-left  { display: flex; align-items: center; gap: 8px; flex: 1; }
.tb-center { display: flex; align-items: center; gap: 4px; }
.tb-right { display: flex; align-items: center; gap: 4px; justify-content: flex-end; flex: 1; }

.app-logo {
  font-size: 13px;
  font-weight: 700;
  letter-spacing: -0.02em;
  color: var(--text);
  white-space: nowrap;
}

.fps-badge {
  font-size: 10px;
  color: var(--text-3);
  background: var(--raised);
  padding: 1px 5px;
  border: 1px solid var(--border);
  font-feature-settings: "tnum";
}

.btn-tool {
  height: 24px;
  padding: 0 8px;
  background: var(--raised);
  border: 1px solid var(--border);
  color: var(--text-2);
  font-family: var(--font);
  font-size: 10px;
  cursor: pointer;
  display: flex;
  align-items: center;
  gap: 4px;
  white-space: nowrap;
  transition: background 0.1s, color 0.1s, border-color 0.1s;
}
.btn-tool:hover   { background: #2a2a2a; border-color: var(--border-hi); color: var(--text); }
.btn-tool.active  { background: var(--text); color: #000; border-color: var(--text); }
.btn-tool.btn-export { color: var(--text-3); }
.btn-tool.btn-export:hover { color: var(--text); }

/* ─── Layout ────────────────────────────────────────── */
#app-layout {
  display: flex;
  height: 100vh;
  padding-top: var(--toolbar-h);
}

/* ─── Sidebar ───────────────────────────────────────── */
#sidebar {
  width: var(--sidebar-w);
  min-width: var(--sidebar-w);
  max-width: var(--sidebar-w);
  height: 100%;
  background: var(--bg);
  border-right: 1px solid var(--border);
  overflow-y: auto;
  overflow-x: hidden;
  flex-shrink: 0;
}

#sidebar-inner {
  display: flex;
  flex-direction: column;
  padding-bottom: 24px;
}

/* ─── Sections (accordion) ──────────────────────────── */
.section {
  border-bottom: 1px solid var(--border);
}

.section-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 9px 12px;
  cursor: pointer;
  list-style: none;
  font-size: 10px;
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--text-2);
  user-select: none;
  background: var(--bg);
  transition: color 0.1s;
}
.section-header:hover { color: var(--text); }
.section-header::-webkit-details-marker { display: none; }

.chevron {
  flex-shrink: 0;
  transition: transform 0.2s;
  color: var(--text-3);
}
details[open] .chevron { transform: rotate(180deg); }

.section-body {
  display: flex;
  flex-direction: column;
  gap: 1px;
  background: var(--border);
  border-top: 1px solid var(--border);
}

/* ─── Sub-group ─────────────────────────────────────── */
.sub-group {
  display: flex;
  flex-direction: column;
  gap: 6px;
  padding: 10px 12px;
  background: var(--surface);
}

.sub-label {
  font-size: 9px;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--text-3);
  padding-bottom: 2px;
}

.sub-label-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.sub-label-row .sub-label { padding-bottom: 0; }

/* ─── Control Row ───────────────────────────────────── */
.ctrl-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
  min-height: 20px;
}

.ctrl-row label:first-child {
  color: var(--text-2);
  flex: 1;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.info-row {
  opacity: 0.7;
}

.label-muted { color: var(--text-3); }

.val {
  color: var(--text);
  font-feature-settings: "tnum";
  margin: 0 2px;
}

.val-badge {
  font-size: 10px;
  color: var(--text-2);
  background: var(--raised);
  border: 1px solid var(--border);
  padding: 1px 5px;
}

/* ─── Swatches ──────────────────────────────────────── */
.swatches-grid {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 4px;
}

.swatch-btn {
  aspect-ratio: 1;
  background: var(--sb-bg, #000);
  color: var(--sb-fg, #fff);
  border: 1px solid transparent;
  font-family: var(--font);
  font-size: 11px;
  font-weight: 700;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: border-color 0.1s, transform 0.1s;
}
.swatch-btn:hover { border-color: var(--text); }
.swatch-btn.active { border-color: var(--text); box-shadow: 0 0 0 1px var(--text); }

.swatch-custom {
  background: conic-gradient(
    #ff0000, #ffaa00, #ffff00, #00ff66, #0033ff, #aa00ff, #ff0000
  );
  color: #fff;
  text-shadow: 0 0 3px #000;
  border-color: var(--border);
}

/* ─── Slider ────────────────────────────────────────── */
.slider {
  -webkit-appearance: none;
  appearance: none;
  flex-shrink: 0;
  width: 90px;
  height: 2px;
  background: var(--raised);
  outline: none;
  cursor: pointer;
  border: none;
}

.slider::-webkit-slider-thumb {
  -webkit-appearance: none;
  appearance: none;
  width: 10px;
  height: 10px;
  background: var(--text);
  cursor: pointer;
  border-radius: 0;
  border: none;
}
.slider::-moz-range-thumb {
  width: 10px;
  height: 10px;
  background: var(--text);
  cursor: pointer;
  border-radius: 0;
  border: none;
}
.slider::-webkit-slider-runnable-track {
  background: linear-gradient(to right, var(--text-3) 0%, var(--raised) 0%);
  height: 2px;
}
.slider:focus { outline: none; }

/* ─── Color input ───────────────────────────────────── */
.color-input {
  -webkit-appearance: none;
  appearance: none;
  width: 28px;
  height: 20px;
  padding: 0;
  border: 1px solid var(--border);
  background: none;
  cursor: pointer;
  flex-shrink: 0;
}
.color-input::-webkit-color-swatch-wrapper { padding: 0; }
.color-input::-webkit-color-swatch { border: none; }

/* ─── Select ────────────────────────────────────────── */
.select-input {
  -webkit-appearance: none;
  appearance: none;
  background: var(--raised) url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='8' height='5' viewBox='0 0 8 5'%3E%3Cpath d='M0 0l4 5 4-5z' fill='%23666'/%3E%3C/svg%3E") no-repeat right 6px center;
  border: 1px solid var(--border);
  color: var(--text);
  font-family: var(--font);
  font-size: 10px;
  padding: 3px 20px 3px 6px;
  cursor: pointer;
  outline: none;
  flex-shrink: 0;
}
.select-input:hover  { border-color: var(--border-hi); }
.select-input:focus  { border-color: var(--text-2); outline: none; }
.select-input option { background: #222; color: var(--text); }
.select-full { width: 100%; flex-shrink: 1; }

/* ─── Text inputs ───────────────────────────────────── */
.text-input {
  width: 100%;
  background: var(--raised);
  border: 1px solid var(--border);
  color: var(--text);
  font-family: var(--font);
  font-size: 10px;
  padding: 4px 6px;
  outline: none;
}
.text-input:focus { border-color: var(--text-2); }
.text-input::placeholder { color: var(--text-3); }

.textarea-input {
  width: 100%;
  background: var(--raised);
  border: 1px solid var(--border);
  color: var(--text);
  font-family: var(--font);
  font-size: 10px;
  padding: 5px 6px;
  outline: none;
  resize: vertical;
  line-height: 1.5;
}
.textarea-input:focus { border-color: var(--text-2); }

.num-input {
  width: 54px;
  background: var(--raised);
  border: 1px solid var(--border);
  color: var(--text);
  font-family: var(--font);
  font-size: 10px;
  padding: 3px 5px;
  outline: none;
  text-align: right;
}
.num-input:focus { border-color: var(--text-2); }

/* ─── Toggle switch ─────────────────────────────────── */
.toggle {
  position: relative;
  display: inline-flex;
  align-items: center;
  cursor: pointer;
  flex-shrink: 0;
}
.toggle input { position: absolute; opacity: 0; width: 0; height: 0; }

.track {
  display: block;
  width: 28px;
  height: 14px;
  background: var(--raised);
  border: 1px solid var(--border);
  position: relative;
  transition: background 0.15s, border-color 0.15s;
}
.track::after {
  content: '';
  position: absolute;
  top: 2px; left: 2px;
  width: 8px; height: 8px;
  background: var(--text-3);
  transition: transform 0.15s, background 0.15s;
}
.toggle input:checked + .track {
  background: var(--text);
  border-color: var(--text);
}
.toggle input:checked + .track::after {
  transform: translateX(14px);
  background: #000;
}

/* ─── Button group (align) ──────────────────────────── */
.btn-group {
  display: flex;
  gap: 2px;
  flex-shrink: 0;
}
.btn-group button,
.btn-align-title {
  height: 20px;
  padding: 0 7px;
  background: var(--raised);
  border: 1px solid var(--border);
  color: var(--text-2);
  font-family: var(--font);
  font-size: 9px;
  cursor: pointer;
  transition: background 0.1s, color 0.1s;
}
.btn-align-title.active,
.btn-group button.active {
  background: var(--text);
  color: #000;
  border-color: var(--text);
}
.btn-align-title:hover:not(.active),
.btn-group button:hover:not(.active) { background: #2a2a2a; color: var(--text); }

/* ─── Action buttons ────────────────────────────────── */
.btn-action {
  width: 100%;
  height: 26px;
  background: var(--raised);
  border: 1px solid var(--border);
  color: var(--text-2);
  font-family: var(--font);
  font-size: 10px;
  cursor: pointer;
  transition: background 0.1s, color 0.1s, border-color 0.1s;
}
.btn-action:hover { background: #2a2a2a; border-color: var(--border-hi); color: var(--text); }

.btn-primary {
  background: var(--text);
  color: #000;
  border-color: var(--text);
  font-weight: 700;
}
.btn-primary:hover { background: #e0e0e0; border-color: #e0e0e0; color: #000; }

.btn-sm {
  height: 24px;
  padding: 0 8px;
  background: var(--raised);
  border: 1px solid var(--border);
  color: var(--text-2);
  font-family: var(--font);
  font-size: 12px;
  cursor: pointer;
  flex-shrink: 0;
  transition: background 0.1s, color 0.1s;
}
.btn-sm:hover { background: #2a2a2a; color: var(--text); }

/* ─── Check group ───────────────────────────────────── */
.check-group {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
}
.check-group label {
  display: flex;
  align-items: center;
  gap: 4px;
  color: var(--text-2);
  cursor: pointer;
}
.check-group input[type="checkbox"] {
  accent-color: var(--text);
  width: 10px;
  height: 10px;
}

/* ─── Animation params ──────────────────────────────── */
.anim-params {
  display: flex;
  flex-direction: column;
  gap: 6px;
  padding: 10px 12px;
  background: var(--surface);
  border-top: 1px solid var(--border);
}
.params-title {
  font-size: 9px;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--text-3);
  padding-bottom: 4px;
}

/* ─── Export progress ───────────────────────────────── */
.export-progress {
  display: flex;
  flex-direction: column;
  gap: 4px;
  padding-top: 4px;
}
.progress-bar {
  height: 2px;
  background: var(--raised);
  border: 1px solid var(--border);
  overflow: hidden;
}
.progress-fill {
  height: 100%;
  background: var(--text);
  width: 0%;
  transition: width 0.15s;
}
.export-progress span {
  font-size: 9px;
  color: var(--text-3);
}

/* ─── Toolbar contrast badge ────────────────────────── */
.toolbar-contrast {
  font-size: 10px;
  font-feature-settings: "tnum";
  padding: 1px 5px;
  background: var(--raised);
  border: 1px solid var(--border);
  white-space: nowrap;
}
.toolbar-contrast.pass { color: #00aa44; border-color: #00aa44; }
.toolbar-contrast.fail { color: var(--danger); border-color: var(--danger); }

/* ─── Contrast indicator (sidebar) ─────────────────── */
.contrast-indicator {
  display: flex;
  align-items: center;
  gap: 6px;
}
.contrast-label {
  color: var(--text-3);
  font-size: 10px;
  flex: 1;
}
.contrast-ratio-val {
  font-size: 10px;
  font-feature-settings: "tnum";
  color: var(--text);
}
.contrast-badge {
  font-size: 9px;
  font-weight: 700;
  padding: 1px 5px;
  border: 1px solid transparent;
  letter-spacing: 0.03em;
}
.contrast-badge.pass { color: #00aa44; border-color: #00aa44; }
.contrast-badge.fail { color: var(--danger); border-color: var(--danger); }

.contrast-error {
  font-size: 9px;
  color: var(--danger);
  line-height: 1.4;
  padding-top: 3px;
}

/* ─── WCAG swatches ──────────────────────────────────── */
.wcag-swatches {
  display: flex;
  flex-wrap: wrap;
  gap: 4px;
  margin-top: 4px;
}
.wcag-swatch {
  width: 32px;
  height: 22px;
  background: var(--ws-bg, #000);
  color: var(--ws-fg, #fff);
  border: 1px solid transparent;
  font-family: var(--font);
  font-size: 9px;
  font-weight: 700;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: border-color 0.1s, transform 0.1s;
}
.wcag-swatch:hover { border-color: var(--text); transform: scale(1.08); }

/* ─── Color picker error flash ──────────────────────── */
@keyframes pickerFlash {
  0%   { outline: 2px solid var(--danger); }
  50%  { outline: 2px solid transparent; }
  100% { outline: 2px solid var(--danger); }
}
.picker-error-flash {
  animation: pickerFlash 0.4s ease;
}

/* ─── Utility ───────────────────────────────────────── */
.hidden { display: none !important; }

/* ─── Canvas area ───────────────────────────────────── */
#canvas-area {
  flex: 1;
  overflow: auto;
  background: #0d0d0d;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 20px;
}

#canvas-wrapper {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 100%;
  height: 100%;
}

#canvas-container canvas {
  display: block;
  max-width: 100%;
  max-height: calc(100vh - var(--toolbar-h) - 40px);
  object-fit: contain;
  box-shadow: 0 0 0 1px var(--border), 0 8px 32px rgba(0,0,0,0.6);
}

/* ─── Toasts ─────────────────────────────────────── */
#toast-container {
  position: fixed;
  bottom: 16px;
  right: 16px;
  display: flex;
  flex-direction: column;
  gap: 6px;
  z-index: 999;
  pointer-events: none;
}
.toast {
  padding: 6px 12px;
  background: var(--raised);
  border: 1px solid var(--border);
  color: var(--text-2);
  font-family: var(--font);
  font-size: 10px;
  animation: toastIn 0.2s ease;
}
.toast.success { border-color: #00aa44; color: #00aa44; }
.toast.error   { border-color: var(--danger); color: var(--danger); }
@keyframes toastIn {
  from { opacity: 0; transform: translateY(6px); }
  to   { opacity: 1; transform: translateY(0); }
}

/* ─── Tablet ────────────────────────────────────────── */
@media (max-width: 900px) {
  #app-layout { flex-direction: column; }

  #sidebar {
    width: 100%;
    max-width: 100%;
    min-width: 0;
    height: 38vh;
    border-right: none;
    border-top: 1px solid var(--border);
    order: 2;
  }

  #canvas-area {
    order: 1;
    flex: 1;
    padding: 10px;
    min-height: 0;
  }

  #canvas-container canvas {
    max-height: calc(62vh - var(--toolbar-h) - 20px);
  }

  .slider { width: 80px; }
}

/* ─── Móvil ─────────────────────────────────────────── */
@media (max-width: 600px) {
  :root { --toolbar-h: 44px; }

  /* ── Toolbar compacto ── */
  #toolbar { padding: 0 10px; gap: 6px; }
  .app-logo { font-size: 12px; }
  .fps-badge { display: none; }
  /* Exportación solo en sidebar, ocultar del toolbar */
  .tb-right { display: none; }

  /* ── Layout vertical ── */
  #app-layout { flex-direction: column; }

  #canvas-area {
    order: 1;
    flex: none;
    height: calc(52vh - var(--toolbar-h));
    padding: 8px;
    overflow: hidden;
    display: flex;
    align-items: center;
    justify-content: center;
  }

  #canvas-wrapper {
    width: 100%;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
  }

  #canvas-container canvas {
    max-width: 100%;
    max-height: 100%;
    object-fit: contain;
  }

  /* ── Sidebar como drawer inferior ── */
  #sidebar {
    order: 2;
    width: 100%;
    max-width: 100%;
    min-width: 0;
    height: 48vh;
    border-right: none;
    border-top: 2px solid var(--border);
    overflow-y: auto;
    -webkit-overflow-scrolling: touch;
    overscroll-behavior: contain;
  }

  /* Handle visual del drawer */
  #sidebar-inner::before {
    content: '';
    display: block;
    width: 36px;
    height: 3px;
    background: var(--border-hi);
    border-radius: 2px;
    margin: 8px auto 0;
    flex-shrink: 0;
  }

  /* ── Controles touch-friendly ── */
  .ctrl-row { min-height: 40px; }
  .section-header { padding: 11px 12px; }

  .slider {
    width: 100%;
    height: 3px;
  }
  .slider::-webkit-slider-thumb {
    width: 20px;
    height: 20px;
  }
  .slider::-moz-range-thumb {
    width: 20px;
    height: 20px;
  }

  .btn-action { min-height: 38px; }
  .btn-sm     { min-height: 36px; padding: 0 12px; }
  .btn-tool   { height: 30px; }

  .swatch-btn { min-height: 42px; }

  .select-input { padding: 5px 20px 5px 6px; font-size: 11px; }
  .num-input    { width: 60px; font-size: 12px; }

  /* Swatches: 5 columnas en vez de free-flow */
  .swatches-grid { gap: 5px; }
}