/* ============================================
   ATELIER - プロ仕様お絵描きツール CSS
   ============================================ */

/* === リセット＆ルート === */
.atelier-root {
  --bg-dark: #18181b;
  --bg-panel: #27272a;
  --bg-section: #303036;
  --bg-hover: #3f3f46;
  --bg-active: #0ea5e9;
  --text: #e4e4e7;
  --text-dim: #a1a1aa;
  --text-accent: #38bdf8;
  --border: #3f3f46;
  --border-light: #52525b;
  --accent: #0ea5e9;
  --danger: #ef4444;
  --font-mono: 'Menlo', 'Consolas', 'Monaco', monospace;
  position: relative;
  display: flex;
  flex-direction: column;
  background: var(--bg-dark);
  color: var(--text);
  font-family: var(--font-mono);
  font-size: 12px;
  line-height: 1.4;
  overflow: hidden;
  border-radius: 6px;
  box-shadow: 0 4px 24px rgba(0,0,0,0.5);
  user-select: none;
  -webkit-user-select: none;
}
.atelier-root *, .atelier-root *::before, .atelier-root *::after {
  box-sizing: border-box;
  margin: 0; padding: 0;
}

/* === トップバー === */
.atelier-topbar {
  display: flex; justify-content: space-between; align-items: center;
  height: 36px; padding: 0 8px;
  background: var(--bg-panel);
  border-bottom: 1px solid var(--border);
  flex-shrink: 0;
}
.atelier-topbar-left, .atelier-topbar-right {
  display: flex; align-items: center; gap: 6px;
}
.atelier-logo {
  font-weight: bold; font-size: 13px; color: var(--text-accent);
  margin-right: 8px; letter-spacing: 2px;
}
.atelier-btn-group {
  display: flex; align-items: center; gap: 2px;
  background: var(--bg-section); border-radius: 4px; padding: 2px;
}
.atelier-btn {
  background: transparent; border: none; color: var(--text);
  padding: 4px 8px; border-radius: 3px; cursor: pointer;
  font-size: 12px; font-family: inherit; white-space: nowrap;
  transition: background 0.15s;
}
.atelier-btn:hover { background: var(--bg-hover); }
.atelier-btn:active { background: var(--accent); color: #fff; }
.atelier-btn:disabled { opacity: 0.35; cursor: default; }
.atelier-btn:disabled:hover { background: transparent; }
.atelier-zoom-label {
  font-size: 11px; color: var(--text-dim);
  min-width: 42px; text-align: center;
}

/* === メインエリア === */
.atelier-main {
  display: flex; flex: 1; overflow: hidden;
  min-height: 0;
}

/* === ツールパネル（左） === */
.atelier-tools-panel {
  width: 180px; min-width: 180px;
  background: var(--bg-panel);
  border-right: 1px solid var(--border);
  overflow-y: auto; overflow-x: hidden;
  display: flex; flex-direction: column;
  flex-shrink: 0;
}
.atelier-tool-section {
  padding: 8px;
  border-bottom: 1px solid var(--border);
}
.atelier-tool-section label {
  display: flex; justify-content: space-between; align-items: center;
  font-size: 11px; color: var(--text-dim);
  margin-bottom: 4px;
}
.atelier-val { color: var(--text-accent); font-weight: bold; }

/* ツールグリッド */
.atelier-tool-grid {
  display: grid; grid-template-columns: repeat(3, 1fr); gap: 3px;
}
.atelier-tool {
  background: var(--bg-section); border: 1px solid transparent;
  color: var(--text); padding: 6px 0; border-radius: 4px;
  cursor: pointer; font-size: 14px; text-align: center;
  transition: all 0.15s; line-height: 1;
}
.atelier-tool:hover { background: var(--bg-hover); border-color: var(--border-light); }
.atelier-tool.active { background: var(--accent); border-color: var(--accent); color: #fff; }

/* スライダー */
.atelier-slider {
  -webkit-appearance: none; appearance: none;
  width: 100%; height: 6px; border-radius: 3px;
  background: var(--bg-section); outline: none;
  margin: 4px 0 8px;
}
.atelier-slider::-webkit-slider-thumb {
  -webkit-appearance: none; appearance: none;
  width: 14px; height: 14px; border-radius: 50%;
  background: var(--accent); cursor: pointer;
  border: 2px solid var(--bg-dark);
}
.atelier-slider::-moz-range-thumb {
  width: 14px; height: 14px; border-radius: 50%;
  background: var(--accent); cursor: pointer;
  border: 2px solid var(--bg-dark);
}

/* === カラーセクション === */
.atelier-color-section { padding: 8px; }
.atelier-color-preview-row {
  display: flex; align-items: center; gap: 6px; margin-bottom: 8px;
}
.atelier-color-preview {
  width: 32px; height: 32px; border-radius: 4px;
  border: 2px solid var(--border-light);
  background: #000000; flex-shrink: 0;
  cursor: pointer;
}
.atelier-hex-input {
  background: var(--bg-section); border: 1px solid var(--border);
  color: var(--text); font-family: var(--font-mono); font-size: 12px;
  padding: 4px 6px; border-radius: 3px; width: 100%;
}
.atelier-hex-input:focus { outline: none; border-color: var(--accent); }

/* SV ピッカー */
.atelier-sv-picker {
  position: relative; width: 100%; height: 120px;
  border-radius: 4px; overflow: hidden; margin-bottom: 6px;
  cursor: crosshair;
}
.atelier-sv-canvas { width: 100%; height: 100%; display: block; }
.atelier-sv-cursor {
  position: absolute; width: 12px; height: 12px;
  border: 2px solid #fff; border-radius: 50%;
  box-shadow: 0 0 2px rgba(0,0,0,0.8);
  pointer-events: none; transform: translate(-50%, -50%);
  top: 0; left: 100%;
}

/* Hue スライダー */
.atelier-hue-row {
  position: relative; width: 100%; height: 16px;
  border-radius: 3px; overflow: hidden; margin-bottom: 8px;
  cursor: crosshair;
}
.atelier-hue-canvas { width: 100%; height: 100%; display: block; }
.atelier-hue-cursor {
  position: absolute; top: -1px; width: 4px; height: 18px;
  background: #fff; border: 1px solid #333;
  border-radius: 2px; pointer-events: none;
  transform: translateX(-50%); left: 0;
}

/* パレット */
.atelier-palette {
  display: grid; grid-template-columns: repeat(10, 1fr); gap: 2px;
  margin-bottom: 6px;
}
.atelier-palette-color {
  width: 100%; aspect-ratio: 1; border-radius: 2px;
  cursor: pointer; border: 1px solid transparent;
  transition: border-color 0.1s;
}
.atelier-palette-color:hover { border-color: #fff; }

/* 最近使った色 */
.atelier-recent-colors {
  display: grid; grid-template-columns: repeat(8, 1fr); gap: 2px;
}
.atelier-recent-label {
  grid-column: 1/-1; font-size: 10px; color: var(--text-dim);
  margin-bottom: 2px;
}
.atelier-recent-color {
  width: 100%; aspect-ratio: 1; border-radius: 2px;
  cursor: pointer; border: 1px solid var(--border);
}
.atelier-recent-color:hover { border-color: #fff; }

/* === キャンバスエリア（中央） === */
.atelier-canvas-area {
  flex: 1; overflow: hidden;
  background: #1a1a1e;
  position: relative;
  cursor: crosshair;
}
.atelier-canvas-wrapper {
  position: absolute;
  top: 0; left: 0;
  transform-origin: 0 0;
  box-shadow: 0 0 20px rgba(0,0,0,0.6);
}
.atelier-bg-canvas {
  position: absolute; top: 0; left: 0;
  width: 100%; height: 100%;
  pointer-events: none;
}
.atelier-layers-container {
  position: relative;
}
.atelier-layers-container canvas {
  position: absolute; top: 0; left: 0;
  width: 100%; height: 100%;
}
.atelier-layers-container canvas:first-child {
  position: relative;
}
.atelier-overlay-canvas {
  position: absolute; top: 0; left: 0;
  width: 100%; height: 100%;
  pointer-events: none;
}
.atelier-brush-cursor {
  position: absolute; pointer-events: none;
  border: 1.5px solid rgba(255,255,255,0.7);
  border-radius: 50%;
  transform: translate(-50%, -50%);
  display: none; z-index: 100;
  box-shadow: 0 0 0 1px rgba(0,0,0,0.3);
}

/* === レイヤーパネル（右） === */
.atelier-layers-panel {
  width: 200px; min-width: 200px;
  background: var(--bg-panel);
  border-left: 1px solid var(--border);
  display: flex; flex-direction: column;
  flex-shrink: 0;
}
.atelier-panel-header {
  display: flex; justify-content: space-between; align-items: center;
  padding: 6px 8px; border-bottom: 1px solid var(--border);
  font-size: 12px; font-weight: bold;
}
.atelier-layer-actions {
  display: flex; gap: 2px;
}
.atelier-btn-sm {
  background: var(--bg-section); border: none; color: var(--text);
  padding: 2px 6px; border-radius: 3px; cursor: pointer;
  font-size: 11px; font-family: inherit;
  transition: background 0.15s;
}
.atelier-btn-sm:hover { background: var(--bg-hover); }

/* レイヤーリスト */
.atelier-layer-list {
  flex: 1; overflow-y: auto; overflow-x: hidden;
}
.atelier-layer-item {
  display: flex; align-items: center; gap: 4px;
  padding: 4px 6px; border-bottom: 1px solid var(--border);
  cursor: pointer; transition: background 0.1s;
  min-height: 38px;
}
.atelier-layer-item:hover { background: var(--bg-section); }
.atelier-layer-item.active { background: var(--bg-active); background: rgba(14,165,233,0.2); border-left: 3px solid var(--accent); }
.atelier-layer-item.dragging { opacity: 0.5; }
.atelier-layer-item.drag-over { border-top: 2px solid var(--accent); }

.atelier-layer-thumb {
  width: 32px; height: 24px; border-radius: 2px;
  border: 1px solid var(--border); flex-shrink: 0;
  background-image:
    linear-gradient(45deg, #555 25%, transparent 25%),
    linear-gradient(-45deg, #555 25%, transparent 25%),
    linear-gradient(45deg, transparent 75%, #555 75%),
    linear-gradient(-45deg, transparent 75%, #555 75%);
  background-size: 8px 8px;
  background-position: 0 0, 0 4px, 4px -4px, -4px 0;
  overflow: hidden; position: relative;
}
.atelier-layer-thumb canvas {
  width: 100%; height: 100%;
  position: absolute; top: 0; left: 0;
}
.atelier-layer-name {
  flex: 1; font-size: 11px; overflow: hidden;
  text-overflow: ellipsis; white-space: nowrap;
  min-width: 0;
}
.atelier-layer-name-input {
  background: var(--bg-section); border: 1px solid var(--accent);
  color: var(--text); font-family: inherit; font-size: 11px;
  padding: 1px 3px; border-radius: 2px; width: 100%;
}
.atelier-layer-btns {
  display: flex; gap: 2px; flex-shrink: 0;
}
.atelier-layer-btn {
  background: none; border: none; color: var(--text-dim);
  padding: 2px; cursor: pointer; font-size: 12px;
  border-radius: 2px; transition: all 0.1s; line-height: 1;
}
.atelier-layer-btn:hover { color: var(--text); background: var(--bg-hover); }
.atelier-layer-btn.off { opacity: 0.3; }
.atelier-layer-btn.locked { color: var(--danger); }

/* ブレンド設定 */
.atelier-blend-section {
  padding: 8px; border-top: 1px solid var(--border);
}
.atelier-blend-section label {
  display: flex; justify-content: space-between; align-items: center;
  font-size: 11px; color: var(--text-dim); margin-bottom: 4px;
}
.atelier-blend-select {
  width: 100%; padding: 4px; border-radius: 3px;
  background: var(--bg-section); border: 1px solid var(--border);
  color: var(--text); font-family: inherit; font-size: 11px;
  margin-bottom: 6px;
}
.atelier-blend-select:focus { outline: none; border-color: var(--accent); }

/* === ステータスバー === */
.atelier-statusbar {
  display: flex; align-items: center; gap: 12px;
  height: 24px; padding: 0 8px;
  background: var(--bg-panel);
  border-top: 1px solid var(--border);
  font-size: 11px; color: var(--text-dim);
  flex-shrink: 0;
}
.atelier-status-tool { color: var(--text-accent); font-weight: bold; }
.atelier-grid-toggle.active { color: var(--accent); background: rgba(14,165,233,0.2); }

/* === 動画パネル === */
.atelier-video-panel {
  position: absolute; right: 0; top: 36px; bottom: 24px;
  width: 320px; background: var(--bg-panel);
  border-left: 1px solid var(--border);
  z-index: 50; display: flex; flex-direction: column;
  box-shadow: -4px 0 16px rgba(0,0,0,0.3);
}
.atelier-yt-container {
  position: relative; width: 100%;
  padding-bottom: 56.25%; background: #000;
}
.atelier-yt-container iframe {
  position: absolute; top: 0; left: 0;
  width: 100%; height: 100%; border: none;
}
.atelier-video-list {
  flex: 1; overflow-y: auto; padding: 4px;
}
.atelier-video-item {
  display: flex; gap: 6px; padding: 6px;
  border-radius: 4px; cursor: pointer;
  transition: background 0.15s;
}
.atelier-video-item:hover { background: var(--bg-hover); }
.atelier-video-item.playing { background: rgba(14,165,233,0.15); }
.atelier-video-item img {
  width: 80px; height: 45px; border-radius: 3px;
  object-fit: cover; flex-shrink: 0;
}
.atelier-video-info {
  flex: 1; min-width: 0;
}
.atelier-video-title {
  font-size: 11px; color: var(--text);
  overflow: hidden; text-overflow: ellipsis;
  display: -webkit-box; -webkit-line-clamp: 2;
  -webkit-box-orient: vertical; line-height: 1.3;
}
.atelier-video-loading {
  text-align: center; padding: 20px;
  color: var(--text-dim);
}

/* === スクロールバー === */
.atelier-root ::-webkit-scrollbar { width: 6px; }
.atelier-root ::-webkit-scrollbar-track { background: transparent; }
.atelier-root ::-webkit-scrollbar-thumb { background: var(--border-light); border-radius: 3px; }
.atelier-root ::-webkit-scrollbar-thumb:hover { background: var(--text-dim); }

/* === レスポンシブ === */
.atelier-root:fullscreen,
.atelier-root:-webkit-full-screen {
  width: 100vw !important;
  height: 100vh !important;
  border-radius: 0;
}
.atelier-root:fullscreen .atelier-canvas-area,
.atelier-root:-webkit-full-screen .atelier-canvas-area {
  flex: 1;
}
.atelier-fullscreen-active {
  border-radius: 0 !important;
}

@media (max-width: 800px) {
  .atelier-tools-panel { width: 56px; min-width: 56px; }
  .atelier-tool-grid { grid-template-columns: 1fr; }
  .atelier-tool-section label, .atelier-color-section,
  .atelier-tool-section .atelier-slider { display: none; }
  .atelier-tools-panel .atelier-tool-section:first-child { display: block; }
  .atelier-tools-panel .atelier-tool-section:first-child .atelier-tool-grid { display: grid; }
  .atelier-layers-panel { width: 140px; min-width: 140px; }
  .atelier-video-panel { width: 260px; }
}