/* ================================================
   PycoBlocks — PCB TERMINAL Design
   フォント: Orbitron (タイトル) + Share Tech Mono (UI/コード)
   カラー: ダーク基板 × 電気グリーン × サイアン
   ================================================ */

@import url('https://fonts.googleapis.com/css2?family=Orbitron:wght@400;700;900&family=Share+Tech+Mono&display=swap');

/* ===== CSS変数 ===== */
:root {
  --bg-base:      #060b06;
  --bg-surface:   #0b150b;
  --bg-panel:     #070d07;
  --border-dim:   #1a341a;
  --border-glow:  #00ff41;
  --accent-green: #00ff41;
  --accent-cyan:  #00d4ff;
  --accent-amber: #ffb700;
  --text-primary: #c8e6c8;
  --text-dim:     #5a8a5a;
  --text-code:    #00ff41;
  --header-h:     54px;
  --font-title:   'Orbitron', monospace;
  --font-mono:    'Share Tech Mono', monospace;
}

/* ===== リセット ===== */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

/* ===== ボディ：PCBグリッド背景 ===== */
body {
  font-family: var(--font-mono);
  background-color: var(--bg-base);
  color: var(--text-primary);
  display: flex;
  flex-direction: column;
  height: 100vh;
  overflow: hidden;
  /* PCB格子パターン */
  background-image:
    linear-gradient(rgba(0,255,65,0.03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(0,255,65,0.03) 1px, transparent 1px),
    linear-gradient(rgba(0,255,65,0.015) 1px, transparent 1px),
    linear-gradient(90deg, rgba(0,255,65,0.015) 1px, transparent 1px);
  background-size: 40px 40px, 40px 40px, 8px 8px, 8px 8px;
}

/* ===== ヘッダー ===== */
header {
  height: var(--header-h);
  background: linear-gradient(90deg, #060f06 0%, #0b1a0b 50%, #060f06 100%);
  border-bottom: 1px solid var(--border-dim);
  box-shadow:
    0 1px 0 rgba(0,255,65,0.15),
    0 4px 20px rgba(0,0,0,0.8);
  display: flex;
  align-items: center;
  padding: 0 20px;
  gap: 16px;
  flex-shrink: 0;
  position: relative;
  animation: headerReveal 0.6s ease-out both;
}

/* ヘッダー左端の縦ライン */
header::before {
  content: '';
  position: absolute;
  left: 0; top: 0; bottom: 0;
  width: 3px;
  background: linear-gradient(180deg, transparent, var(--accent-green), transparent);
}

@keyframes headerReveal {
  from { opacity: 0; transform: translateY(-8px); }
  to   { opacity: 1; transform: translateY(0); }
}

/* ===== タイトル ===== */
.title-block {
  display: flex;
  align-items: baseline;
  gap: 10px;
}

h1 {
  font-family: var(--font-title);
  font-size: 1.15rem;
  font-weight: 900;
  letter-spacing: 0.12em;
  color: var(--accent-green);
  text-shadow:
    0 0 8px rgba(0,255,65,0.8),
    0 0 20px rgba(0,255,65,0.4);
  text-transform: uppercase;
}

.title-sub {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  color: var(--text-dim);
  letter-spacing: 0.06em;
}

/* ステータスドット */
.status-dot {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--accent-green);
  box-shadow: 0 0 6px var(--accent-green);
  animation: blink 2s ease-in-out infinite;
  flex-shrink: 0;
}

@keyframes blink {
  0%, 100% { opacity: 1; }
  50%       { opacity: 0.2; }
}

.toolbar {
  margin-left: auto;
  display: flex;
  gap: 10px;
  align-items: center;
  flex-wrap: nowrap;
}

/* バージョン表示 */
.version-tag {
  font-family: var(--font-mono);
  font-size: 0.65rem;
  color: var(--text-dim);
  border: 1px solid var(--border-dim);
  padding: 2px 8px;
  letter-spacing: 0.08em;
}

/* DEMOバッジ（Web Serial 非対応環境） */
.demo-badge {
  font-family: var(--font-mono);
  font-size: 0.65rem;
  letter-spacing: 0.14em;
  color: var(--accent-amber);
  border: 1px solid var(--accent-amber);
  padding: 2px 10px;
  text-shadow: 0 0 6px rgba(255,183,0,0.7);
  box-shadow: 0 0 8px rgba(255,183,0,0.2), inset 0 0 8px rgba(255,183,0,0.05);
  animation: demoPulse 2.5s ease-in-out infinite;
  flex-shrink: 0;
}
@keyframes demoPulse {
  0%, 100% { opacity: 1; }
  50%       { opacity: 0.45; }
}

/* ===== ボタン（回路基板コーナー風） ===== */
.toolbar button {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  letter-spacing: 0.08em;
  padding: 7px 16px;
  border: 1px solid;
  cursor: pointer;
  position: relative;
  transition: all 0.2s ease;
  text-transform: uppercase;
  background: transparent;
  white-space: nowrap;
  flex-shrink: 0;
  /* コーナーカット */
  clip-path: polygon(6px 0%, 100% 0%, 100% calc(100% - 6px), calc(100% - 6px) 100%, 0% 100%, 0% 6px);
}

#btn-generate {
  color: var(--accent-green);
  border-color: var(--accent-green);
  text-shadow: 0 0 6px rgba(0,255,65,0.6);
  box-shadow: inset 0 0 12px rgba(0,255,65,0.05);
}

#btn-generate:hover {
  background: rgba(0,255,65,0.12);
  box-shadow:
    0 0 14px rgba(0,255,65,0.4),
    inset 0 0 12px rgba(0,255,65,0.1);
  color: #fff;
}

#btn-toggle-comments {
  color: var(--text-dim);
  border-color: var(--border-dim);
  text-shadow: none;
  box-shadow: none;
}

#btn-toggle-comments:hover {
  color: var(--accent-green);
  border-color: var(--accent-green);
  background: rgba(0,255,65,0.06);
  box-shadow: none;
}

#btn-toggle-comments.comments-off {
  color: var(--text-dim);
  border-color: var(--border-dim);
  text-shadow: none;
  box-shadow: none;
}

#btn-toggle-comments.comments-off:hover {
  background: rgba(90,138,90,0.1);
  color: var(--text-primary);
  box-shadow: none;
}

#btn-coding-mode {
  color: var(--accent-cyan);
  border-color: var(--accent-cyan);
}
#btn-coding-mode:hover {
  background: rgba(0,212,255,0.1);
}
#btn-coding-mode.coding-active {
  background: rgba(0,212,255,0.15);
  color: var(--accent-amber);
  border-color: var(--accent-amber);
  box-shadow: 0 0 8px rgba(255,183,0,0.4);
}

#btn-load {
  color: var(--accent-cyan);
  border-color: var(--accent-cyan);
  text-shadow: 0 0 6px rgba(0,212,255,0.6);
  box-shadow: inset 0 0 12px rgba(0,212,255,0.05);
}
#btn-load:hover {
  background: rgba(0,212,255,0.1);
  box-shadow: 0 0 14px rgba(0,212,255,0.4), inset 0 0 12px rgba(0,212,255,0.08);
  color: #fff;
}

#btn-download {
  color: var(--accent-cyan);
  border-color: var(--accent-cyan);
  text-shadow: 0 0 6px rgba(0,212,255,0.6);
  box-shadow: inset 0 0 12px rgba(0,212,255,0.05);
}

#btn-download:hover {
  background: rgba(0,212,255,0.1);
  box-shadow:
    0 0 14px rgba(0,212,255,0.4),
    inset 0 0 12px rgba(0,212,255,0.08);
  color: #fff;
}

/* ツールバーラベル */
.toolbar-label {
  font-family: var(--font-mono);
  font-size: 0.62rem;
  color: var(--text-dim);
  letter-spacing: 0.1em;
  text-transform: uppercase;
  padding: 0 2px;
  flex-shrink: 0;
}

/* ブロック操作ボタン（アンバー） */
#btn-save-xml,
#btn-load-xml {
  color: var(--accent-amber);
  border-color: var(--accent-amber);
  text-shadow: 0 0 6px rgba(255,183,0,0.6);
  box-shadow: inset 0 0 12px rgba(255,183,0,0.05);
}
#btn-save-xml:hover,
#btn-load-xml:hover {
  background: rgba(255,183,0,0.12);
  box-shadow: 0 0 14px rgba(255,183,0,0.4), inset 0 0 12px rgba(255,183,0,0.08);
  color: #fff;
}

/* ツールバー区切り */
.toolbar-sep {
  width: 1px;
  height: 22px;
  background: var(--border-dim);
  flex-shrink: 0;
}

/* CONNECT ボタン（未接続） */
#btn-connect {
  color: var(--text-dim);
  border-color: var(--border-dim);
  text-shadow: none;
  box-shadow: none;
}
#btn-connect:hover {
  color: var(--accent-green);
  border-color: var(--accent-green);
  background: rgba(0,255,65,0.06);
}
/* CONNECT → DISCONNECT（接続済み） */
#btn-connect.connected {
  color: var(--accent-green);
  border-color: var(--accent-green);
  text-shadow: 0 0 6px rgba(0,255,65,0.6);
  box-shadow: inset 0 0 12px rgba(0,255,65,0.05);
}
#btn-connect.connected:hover {
  background: rgba(255,50,50,0.1);
  color: #ff6060;
  border-color: #ff6060;
  text-shadow: none;
  box-shadow: none;
}

#btn-run {
  color: var(--accent-green);
  border-color: var(--accent-green);
  text-shadow: 0 0 6px rgba(0,255,65,0.6);
  box-shadow: inset 0 0 12px rgba(0,255,65,0.05);
}
#btn-run:hover:not(:disabled) {
  background: rgba(0,255,65,0.12);
  box-shadow: 0 0 14px rgba(0,255,65,0.4), inset 0 0 12px rgba(0,255,65,0.08);
  color: #fff;
}
#btn-stop {
  color: #ff6060;
  border-color: #ff6060;
  text-shadow: 0 0 6px rgba(255,96,96,0.6);
  box-shadow: inset 0 0 12px rgba(255,96,96,0.05);
}
#btn-stop:hover:not(:disabled) {
  background: rgba(255,96,96,0.12);
  box-shadow: 0 0 14px rgba(255,96,96,0.4), inset 0 0 12px rgba(255,96,96,0.08);
  color: #fff;
}
#btn-stop:disabled {
  color: var(--border-dim);
  border-color: var(--border-dim);
  text-shadow: none;
  box-shadow: none;
  cursor: not-allowed;
  opacity: 0.5;
}
#btn-run:disabled {
  color: var(--border-dim);
  border-color: var(--border-dim);
  text-shadow: none;
  box-shadow: none;
  cursor: not-allowed;
  opacity: 0.5;
}

/* WRITE ボタン */
#btn-write {
  color: var(--accent-amber);
  border-color: var(--accent-amber);
  text-shadow: 0 0 6px rgba(255,183,0,0.6);
  box-shadow: inset 0 0 12px rgba(255,183,0,0.05);
}
#btn-write:hover:not(:disabled) {
  background: rgba(255,183,0,0.12);
  box-shadow: 0 0 14px rgba(255,183,0,0.4), inset 0 0 12px rgba(255,183,0,0.08);
  color: #fff;
}
#btn-write:disabled {
  color: var(--border-dim);
  border-color: var(--border-dim);
  text-shadow: none;
  box-shadow: none;
  cursor: not-allowed;
  opacity: 0.5;
}

/* シリアルステータス */
.serial-status {
  margin-left: auto;
  font-size: 0.7rem;
  letter-spacing: 0.06em;
  color: var(--text-dim);
  transition: color 0.3s;
}
.serial-status--ok       { color: var(--accent-green); text-shadow: 0 0 6px rgba(0,255,65,0.5); }
.serial-status--err      { color: #ff6060; }
.serial-status--progress { color: var(--accent-amber); }
.serial-status--dim      { color: var(--text-dim); }

/* ===== メインエリア ===== */
.main {
  display: flex;
  flex: 1;
  overflow: hidden;
}

/* ===== Blocklyワークスペース ===== */
#blockly-div {
  flex: 6;
  flex-shrink: 0;
  height: 100%;
  background-color: var(--bg-surface);
}

/* ===== Blockly ツールボックス上書き ===== */
.blocklyToolboxDiv {
  background: #080e08 !important;
  border-right: 1px solid #1a341a !important;
  padding-top: 4px !important;
}

/* カテゴリ行 */
.blocklyTreeRow {
  padding: 6px 12px 6px 8px !important;
  border-left: 3px solid transparent !important;
  transition: background 0.15s, border-color 0.15s !important;
  cursor: pointer !important;
}
.blocklyTreeRow:hover {
  background: rgba(0,255,65,0.06) !important;
  border-left-color: rgba(0,255,65,0.4) !important;
}
.blocklyTreeSelected {
  background: rgba(0,255,65,0.1) !important;
  border-left-color: var(--accent-green) !important;
}
.blocklyTreeSelected .blocklyTreeLabel {
  color: var(--accent-green) !important;
  text-shadow: 0 0 6px rgba(0,255,65,0.5) !important;
}

/* カテゴリラベル */
.blocklyTreeLabel {
  font-family: var(--font-mono) !important;
  font-size: 0.78rem !important;
  letter-spacing: 0.05em !important;
  color: #8ab88a !important;
}

/* カテゴリアイコン（カラーバー） */
.blocklyTreeRowContentContainer {
  gap: 8px !important;
}

/* フライアウト（ブロック一覧） */
.blocklyFlyout {
  box-shadow: 4px 0 20px rgba(0,0,0,0.6) !important;
}
.blocklyFlyoutBackground {
  fill: #0a140a !important;
  fill-opacity: 1 !important;
}

/* ワークスペース格子 */
.blocklyMainBackground {
  fill: #0b150b !important;
}

/* スクロールバー */
.blocklyScrollbarHandle {
  fill: #1a3a1a !important;
}
.blocklyScrollbarHandle:hover {
  fill: #00ff41 !important;
}

/* ズームボタン */
.blocklyZoom > image,
.blocklyZoom > svg > image {
  filter: invert(0.6) sepia(1) saturate(2) hue-rotate(85deg) !important;
}

/* ゴミ箱 */
.blocklyTrash > image {
  filter: invert(0.5) sepia(1) saturate(1.5) hue-rotate(85deg) !important;
}

/* ===== 区切りライン ===== */
.divider {
  width: 2px;
  cursor: col-resize;
  background: linear-gradient(180deg,
    transparent 0%,
    var(--accent-green) 20%,
    rgba(0,255,65,0.3) 50%,
    var(--accent-green) 80%,
    transparent 100%
  );
  flex-shrink: 0;
  box-shadow: 0 0 8px rgba(0,255,65,0.3);
  user-select: none;
  position: relative; /* 擬似要素の基準 */
}

/* 見た目は2pxのまま、当たり判定を左右12px（計24px）に拡大 */
.divider::before {
  content: '';
  position: absolute;
  top: 0; bottom: 0;
  left: -12px; right: -12px;
}

.divider:hover,
.divider.dragging {
  background: var(--accent-green);
  opacity: 0.8;
}

/* ===== コードパネル ===== */
.code-panel {
  flex: 4;
  flex-shrink: 0;
  display: flex;
  flex-direction: column;
  background: var(--bg-panel);
  position: relative;
  overflow: hidden;
}

/* スキャンライン効果 */
.code-panel::after {
  content: '';
  position: absolute;
  inset: 0;
  background: repeating-linear-gradient(
    0deg,
    transparent,
    transparent 2px,
    rgba(0,0,0,0.08) 2px,
    rgba(0,0,0,0.08) 4px
  );
  pointer-events: none;
  z-index: 1;
}

/* コードパネルヘッダー */
.code-header {
  display: flex;
  align-items: center;
  gap: 10px;
  background: #0a120a;
  border-bottom: 1px solid var(--border-dim);
  padding: 8px 16px;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  color: var(--text-dim);
  letter-spacing: 0.1em;
  text-transform: uppercase;
  flex-shrink: 0;
}

/* ターミナルの3点ドット */
.code-header::before {
  content: '● ● ●';
  font-size: 0.5rem;
  letter-spacing: 4px;
  color: var(--border-dim);
}

/* コード出力エリア */
#code-editor {
  flex: 5 5 0;
  overflow: hidden;
  font-size: 0.82rem;
  position: relative;
  z-index: 2;
}
.CodeMirror {
  height: 100%;
  font-family: var(--font-mono);
  font-size: 0.82rem;
  background: var(--bg-panel) !important;
  color: var(--text-code) !important;
}
.CodeMirror-gutters {
  background: #060b06 !important;
  border-right: 1px solid var(--border-dim) !important;
}
.CodeMirror-linenumber {
  color: var(--text-dim) !important;
}
.CodeMirror-cursor {
  border-left-color: var(--accent-green) !important;
}
.CodeMirror-selected {
  background: rgba(0,255,65,0.15) !important;
}

/* ===== シリアルモニター ===== */
.monitor-header {
  display: flex;
  align-items: center;
  gap: 10px;
  background: #080f0f;
  border-top: 1px solid var(--border-dim);
  border-bottom: 1px solid var(--border-dim);
  padding: 6px 16px;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  color: var(--accent-cyan);
  letter-spacing: 0.1em;
  text-transform: uppercase;
  flex-shrink: 0;
}

.monitor-header::before {
  content: '▸';
  font-size: 0.65rem;
  color: var(--accent-cyan);
  opacity: 0.6;
}

.monitor-controls {
  margin-left: auto;
  display: flex;
  gap: 8px;
}

#monitor-output {
  flex: 4;
  padding: 12px 20px;
  color: var(--accent-cyan);
  font-family: var(--font-mono);
  font-size: 0.8rem;
  line-height: 1.6;
  white-space: pre-wrap;
  overflow-y: auto;
  background: #050d0d;
  text-shadow: 0 0 4px rgba(0,212,255,0.4);
  position: relative;
  z-index: 2;
}

.monitor-resize-handle {
  height: 6px;
  cursor: row-resize;
  background: var(--border-dim);
  transition: background 0.2s;
  flex-shrink: 0;
}

.monitor-resize-handle:hover,
.monitor-resize-handle.dragging {
  background: var(--accent-cyan);
}

#monitor-output::-webkit-scrollbar { width: 6px; }
#monitor-output::-webkit-scrollbar-track { background: #050d0d; }
#monitor-output::-webkit-scrollbar-thumb { background: #0a2a2a; border-radius: 0; }
#monitor-output::-webkit-scrollbar-thumb:hover { background: var(--accent-cyan); }

/* モニター開始ボタン */
#btn-monitor {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.06em;
  padding: 4px 12px;
  border: 1px solid var(--accent-cyan);
  color: var(--accent-cyan);
  background: transparent;
  cursor: pointer;
  clip-path: polygon(4px 0%, 100% 0%, 100% calc(100% - 4px), calc(100% - 4px) 100%, 0% 100%, 0% 4px);
  transition: all 0.2s;
  text-transform: uppercase;
}
#btn-monitor:hover:not(:disabled) {
  background: rgba(0,212,255,0.12);
  box-shadow: 0 0 10px rgba(0,212,255,0.3);
  color: #fff;
}
#btn-monitor.monitor-active {
  color: #ff6060;
  border-color: #ff6060;
  text-shadow: 0 0 4px rgba(255,96,96,0.5);
}
#btn-monitor.monitor-active:hover:not(:disabled) {
  background: rgba(255,96,96,0.12);
  box-shadow: 0 0 10px rgba(255,96,96,0.3);
}
#btn-monitor:disabled {
  color: var(--border-dim);
  border-color: var(--border-dim);
  cursor: not-allowed;
  opacity: 0.5;
}

/* クリアボタン */
#btn-monitor-clear {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.06em;
  padding: 4px 10px;
  border: 1px solid var(--border-dim);
  color: var(--text-dim);
  background: transparent;
  cursor: pointer;
  clip-path: polygon(4px 0%, 100% 0%, 100% calc(100% - 4px), calc(100% - 4px) 100%, 0% 100%, 0% 4px);
  transition: all 0.2s;
  text-transform: uppercase;
}
#btn-monitor-clear:hover {
  color: var(--text-primary);
  border-color: var(--text-dim);
  background: rgba(90,138,90,0.08);
}

/* カスタムスクロールバー */
.CodeMirror-scroll::-webkit-scrollbar {
  width: 6px;
}
.CodeMirror-scroll::-webkit-scrollbar-track {
  background: var(--bg-panel);
}
.CodeMirror-scroll::-webkit-scrollbar-thumb {
  background: var(--border-dim);
  border-radius: 0;
}
.CodeMirror-scroll::-webkit-scrollbar-thumb:hover {
  background: var(--accent-green);
  box-shadow: 0 0 4px var(--accent-green);
}

/* ページ読み込みアニメーション */
.code-panel {
  animation: panelReveal 0.8s ease-out 0.2s both;
}
#blockly-div {
  animation: panelReveal 0.8s ease-out 0.1s both;
}

@keyframes panelReveal {
  from { opacity: 0; }
  to   { opacity: 1; }
}

/* ===== モード切替ボタン ===== */
.mode-toggle {
  display: flex;
  border: 1px solid var(--border-dim);
  overflow: hidden;
  clip-path: polygon(4px 0%, 100% 0%, 100% calc(100% - 4px), calc(100% - 4px) 100%, 0% 100%, 0% 4px);
  flex-shrink: 0;
}

.mode-btn {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.06em;
  padding: 6px 14px;
  border: none;
  border-right: 1px solid var(--border-dim);
  cursor: pointer;
  background: transparent;
  color: var(--text-dim);
  text-transform: uppercase;
  transition: background 0.2s, color 0.2s;
}
.mode-btn:last-child { border-right: none; }

.mode-btn:hover:not(.mode-btn--active) {
  background: rgba(0,255,65,0.06);
  color: var(--text-primary);
}

.mode-btn--active {
  background: rgba(0,255,65,0.15);
  color: var(--accent-green);
  text-shadow: 0 0 6px rgba(0,255,65,0.5);
  cursor: default;
}

/* Python 実行ボタン */
#btn-run-python {
  color: var(--accent-green);
  border-color: var(--accent-green);
  text-shadow: 0 0 6px rgba(0,255,65,0.6);
  box-shadow: inset 0 0 12px rgba(0,255,65,0.05);
}
#btn-run-python:hover:not(:disabled) {
  background: rgba(0,255,65,0.12);
  box-shadow: 0 0 14px rgba(0,255,65,0.4), inset 0 0 12px rgba(0,255,65,0.08);
  color: #fff;
}
#btn-run-python:disabled {
  color: var(--border-dim);
  border-color: var(--border-dim);
  text-shadow: none;
  box-shadow: none;
  cursor: not-allowed;
  opacity: 0.5;
}
#btn-stop-python {
  color: #ff6060;
  border-color: #ff6060;
  text-shadow: 0 0 6px rgba(255,96,96,0.6);
  box-shadow: inset 0 0 12px rgba(255,96,96,0.05);
}
#btn-stop-python:hover {
  background: rgba(255,96,96,0.12);
  box-shadow: 0 0 14px rgba(255,96,96,0.4), inset 0 0 12px rgba(255,96,96,0.08);
  color: #fff;
}

/* ガイドボタン */
#btn-tutorial {
  color: var(--accent-amber);
  border-color: var(--accent-amber);
  text-shadow: 0 0 5px rgba(255,183,0,0.5);
}
#btn-tutorial:hover {
  background: rgba(255,183,0,0.1);
  box-shadow: 0 0 10px rgba(255,183,0,0.3);
  color: #fff;
}
#btn-tutorial.tutorial-active {
  background: rgba(255,183,0,0.18);
  box-shadow: 0 0 10px rgba(255,183,0,0.4);
  color: var(--accent-amber);
}

/* ===== チュートリアルパネル ===== */
.tutorial-panel {
  width: 0;
  overflow: hidden;
  background: var(--bg-panel);
  border-left: 1px solid var(--border-dim);
  display: flex;
  flex-direction: column;
  flex-shrink: 0;
  transition: width 0.3s ease;
  /* スキャンライン */
  position: relative;
}
.tutorial-panel::after {
  content: '';
  position: absolute;
  inset: 0;
  background: repeating-linear-gradient(
    0deg, transparent, transparent 2px,
    rgba(0,0,0,0.07) 2px, rgba(0,0,0,0.07) 4px
  );
  pointer-events: none;
}

.tutorial-panel--open {
  width: 280px;
}

/* ヘッダー */
.tut-hdr {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 10px 14px 8px;
  background: #0a120a;
  border-bottom: 1px solid var(--border-dim);
  flex-shrink: 0;
}

.tut-mode-label {
  font-family: var(--font-mono);
  font-size: 0.65rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--accent-amber);
  text-shadow: 0 0 5px rgba(255,183,0,0.5);
}

.tut-close {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--text-dim);
  background: transparent;
  border: 1px solid var(--border-dim);
  cursor: pointer;
  padding: 2px 7px;
  transition: color 0.2s, border-color 0.2s;
}
.tut-close:hover {
  color: #ff6060;
  border-color: #ff6060;
}

/* プログレスバー */
.tut-pbar-wrap {
  height: 3px;
  background: var(--border-dim);
  flex-shrink: 0;
}
.tut-pbar-fill {
  height: 100%;
  background: var(--accent-amber);
  box-shadow: 0 0 6px rgba(255,183,0,0.6);
  transition: width 0.4s ease;
  width: 0%;
}

/* ステップ番号 */
.tut-progress {
  font-family: var(--font-mono);
  font-size: 0.62rem;
  color: var(--text-dim);
  letter-spacing: 0.1em;
  padding: 6px 14px 0;
  flex-shrink: 0;
}

/* ステップタイトル */
.tut-title {
  font-family: var(--font-mono);
  font-size: 0.85rem;
  font-weight: bold;
  color: var(--accent-green);
  text-shadow: 0 0 6px rgba(0,255,65,0.4);
  padding: 4px 14px 8px;
  border-bottom: 1px solid var(--border-dim);
  flex-shrink: 0;
}

/* 説明文 */
.tut-body {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  color: var(--text-primary);
  line-height: 1.7;
  padding: 14px;
  overflow-y: auto;
  flex: 1;
}
.tut-body code {
  color: var(--accent-green);
  background: rgba(0,255,65,0.08);
  padding: 1px 5px;
  font-family: var(--font-mono);
}

/* ヒントセクション */
.tut-hint-section {
  padding: 0 14px 10px;
  flex-shrink: 0;
}

.tut-hint-toggle {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  color: var(--accent-amber);
  background: transparent;
  border: 1px solid rgba(255,183,0,0.3);
  cursor: pointer;
  padding: 5px 10px;
  width: 100%;
  text-align: left;
  transition: background 0.2s;
  clip-path: polygon(4px 0%, 100% 0%, 100% calc(100% - 4px), calc(100% - 4px) 100%, 0% 100%, 0% 4px);
}
.tut-hint-toggle:hover {
  background: rgba(255,183,0,0.08);
}

.tut-hint {
  display: none;
  font-family: var(--font-mono);
  font-size: 0.74rem;
  color: var(--text-dim);
  line-height: 1.65;
  padding: 10px 10px 4px;
  border-left: 2px solid rgba(255,183,0,0.3);
  margin-top: 8px;
}
.tut-hint strong { color: var(--text-primary); }
.tut-hint code {
  color: var(--accent-green);
  background: rgba(0,255,65,0.08);
  padding: 1px 4px;
}
.tut-hint em { color: var(--accent-cyan); font-style: normal; }

/* ナビゲーション */
.tut-nav {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 10px 14px 14px;
  border-top: 1px solid var(--border-dim);
  flex-shrink: 0;
  background: #0a120a;
}

.tut-nav-btn {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.05em;
  padding: 6px 10px;
  border: 1px solid var(--border-dim);
  color: var(--text-dim);
  background: transparent;
  cursor: pointer;
  transition: all 0.2s;
  clip-path: polygon(4px 0%, 100% 0%, 100% calc(100% - 4px), calc(100% - 4px) 100%, 0% 100%, 0% 4px);
  white-space: nowrap;
}
.tut-nav-btn:hover:not(:disabled) {
  color: var(--text-primary);
  border-color: var(--text-dim);
  background: rgba(90,138,90,0.1);
}
.tut-nav-btn:disabled {
  opacity: 0.3;
  cursor: not-allowed;
}

.tut-nav-btn--next {
  color: var(--accent-green);
  border-color: var(--accent-green);
}
.tut-nav-btn--next:hover:not(:disabled) {
  background: rgba(0,255,65,0.1);
  box-shadow: 0 0 8px rgba(0,255,65,0.3);
  color: #fff;
}

/* 完了チェック表示 */
.tut-check {
  font-family: var(--font-mono);
  font-size: 0.68rem;
  color: var(--text-dim);
  flex: 1;
  text-align: center;
  white-space: nowrap;
  overflow: hidden;
}
.tut-check--done {
  color: var(--accent-green);
  text-shadow: 0 0 5px rgba(0,255,65,0.5);
}

/* ===== Python シェル ===== */
#monitor-output.python-shell {
  color: var(--accent-green);
  background: #040d04;
  text-shadow: 0 0 3px rgba(0,255,65,0.25);
  font-size: 0.83rem;
}

/* エラー行 */
.py-error {
  color: #ff6060;
  text-shadow: none;
}

/* プロンプト行（実行開始マーカー） */
.py-prompt {
  color: var(--text-dim);
}

/* ============================================================
   構文リファレンスパネル（コーディングモード時に表示）
   ============================================================ */

#syntax-panel {
  display: none;              /* 通常は非表示 */
  flex-direction: column;
  width: 230px;
  min-width: 100px;
  flex-shrink: 0;
  background: var(--bg-panel);
  border-right: 1px solid var(--border-dim);
  overflow: hidden;
}

/* コーディングモード ON で表示 */
.coding-mode #syntax-panel  { display: flex; }
.coding-mode #blockly-div   { display: none; }
.coding-mode .divider       { display: none; }

/* パネルヘッダー */
.syntax-header {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 8px 12px;
  background: #0a120a;
  border-bottom: 1px solid var(--border-dim);
  flex-shrink: 0;
}
.syntax-header-title {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  color: var(--accent-green);
  letter-spacing: 0.08em;
  text-shadow: 0 0 6px rgba(0,255,65,0.5);
}
.syntax-header-sub {
  font-family: var(--font-mono);
  font-size: 0.62rem;
  color: var(--text-dim);
  margin-left: auto;
}

/* スクロール可能なコンテンツ領域 */
#syntax-content {
  overflow-y: auto;
  flex: 1;
  padding: 8px 0;
  scrollbar-width: thin;
  scrollbar-color: var(--border-dim) transparent;
}
#syntax-content::-webkit-scrollbar { width: 4px; }
#syntax-content::-webkit-scrollbar-thumb { background: var(--border-dim); }

/* カテゴリブロック */
.syn-cat {
  margin-bottom: 4px;
}
.syn-cat-title {
  font-family: var(--font-mono);
  font-size: 0.65rem;
  color: var(--accent-cyan);
  letter-spacing: 0.1em;
  text-transform: uppercase;
  padding: 5px 12px 3px;
  border-left: 2px solid var(--accent-cyan);
  margin-left: 8px;
  margin-bottom: 2px;
}
.syn-item {
  padding: 1px 12px;
  cursor: pointer;
  border-radius: 4px;
  transition: background 0.15s;
}
.syn-item code {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  color: var(--text-code);
  display: block;
  line-height: 1.5;
  white-space: pre;
}
.syn-item:hover {
  background: rgba(100, 220, 180, 0.10);
}
.syn-item--inserted {
  background: rgba(100, 220, 180, 0.30) !important;
}
.syn-item .syn-label {
  color: var(--text-dim);
  font-size: 0.65rem;
  display: block;
  margin-top: 4px;
}
.syn-item .syn-comment {
  color: var(--text-dim);
  font-size: 0.65rem;
}

/* モバイル：横幅を狭く */
@media (max-width: 900px) {
  #syntax-panel { width: 180px; font-size: 0.68rem; }
  .coding-mode .divider { display: none; }

  /* コーディングモード：縦積みではなく横並びを維持（.main.coding-mode で詳細度を高めて column を上書き） */
  .main.coding-mode { flex-direction: row; }
  .coding-mode .code-panel {
    flex: 1;
    width: auto;
    min-height: 0;
  }
}

/* 選択中ブロックに対応するコード行（CodeMirror の background レイヤー） */
.CodeMirror-linebackground.block-selection-highlight {
  background: rgba(100, 180, 255, 0.14);
  box-shadow: inset 3px 0 0 rgba(100, 180, 255, 0.65);
}

/* ============================================================
   レスポンシブ対応
   ≤900px : ヘッダー折り返し・メイン縦積み（タブレット縦）
   ≤600px : ボタン縮小・補助要素を非表示（スマートフォン）
   ============================================================ */

@media (max-width: 900px) {
  /* ヘッダー：高さ固定を解除して折り返し可能に */
  header {
    height: auto;
    min-height: var(--header-h);
    flex-wrap: wrap;
    padding: 6px 12px;
    gap: 6px;
  }

  /* タイトルブロックを左端に固定 */
  .title-block { flex-shrink: 0; }

  /* モード切替は右端へ */
  .mode-toggle { margin-left: auto; }

  /* ツールバーは2行折り返し */
  .toolbar {
    margin-left: 0;
    width: 100%;
    flex-wrap: wrap;
    gap: 6px;
    overflow-x: visible;
  }

  /* version-tag は折り返しライン確保のため非表示 */
  .version-tag { display: none; }

  /* ===== メインエリアを縦積みに ===== */
  .main { flex-direction: column; }

  /* Blocklyワークスペース：幅100%・高さ固定 */
  #blockly-div {
    flex: none;
    width: 100%;
    height: 52vh;
  }

  /* 区切り線：縦→横（上下12pxの当たり判定を擬似要素で確保） */
  .divider {
    width: 100%;
    height: 3px;
    cursor: row-resize;
    background: linear-gradient(90deg,
      transparent 0%,
      var(--accent-green) 20%,
      rgba(0,255,65,0.3) 50%,
      var(--accent-green) 80%,
      transparent 100%
    );
  }
  .divider::before {
    left: 0; right: 0;
    top: -12px; bottom: -12px;
  }

  /* コードパネル：残りの高さを埋める */
  .code-panel {
    flex: 1;
    width: 100%;
  }

  /* チュートリアルパネル：下からスライドアップするドロワーに変更 */
  .tutorial-panel {
    position: fixed;
    left: 0;
    right: 0;
    bottom: 0;
    width: 100% !important;       /* width: 0 / 280px の上書き */
    height: 0;
    max-height: 58vh;
    overflow: hidden;
    border-left: none;
    border-top: 1px solid var(--border-dim);
    transition: height 0.3s ease; /* width トランジションを高さに置換 */
    z-index: 200;
  }
  .tutorial-panel--open {
    width: 100% !important;
    height: 58vh;                 /* width: 280px の代わり */
  }
}

@media (max-width: 600px) {
  /* タイトル縮小 */
  h1 { font-size: 0.95rem; }
  .title-sub { display: none; }

  /* ツールバーのラベルと区切りを非表示 */
  .toolbar-label,
  .toolbar-sep { display: none; }

  /* ボタン全体を小さく */
  .toolbar button {
    font-size: 0.7rem;
    padding: 5px 10px;
  }

  /* モードボタン縮小 */
  .mode-btn {
    font-size: 0.65rem;
    padding: 5px 10px;
  }

  /* demo-badge 縮小 */
  .demo-badge {
    font-size: 0.58rem;
    padding: 2px 6px;
  }

  /* Blocklyを少し大きく、コードは小さめ */
  #blockly-div { height: 58vh; }

  /* CodeMirror フォント縮小 */
  .CodeMirror,
  #code-editor { font-size: 0.75rem; }

  /* コーディングモード：極狭画面でもsyntax-panelを縮める */
  .coding-mode #syntax-panel {
    width: 120px;
    font-size: 0.6rem;
  }
  .coding-mode .syn-code {
    font-size: 0.58rem;
  }
}

/* ============================================================
   テーマ定義
   ============================================================ */

/* ----- Cyan（青系） ----- */
[data-theme="cyan"] {
  --bg-base:      #030d14;
  --bg-surface:   #060f1a;
  --bg-panel:     #040c12;
  --border-dim:   #0a2a3a;
  --border-glow:  #00d4ff;
  --accent-green: #00d4ff;
  --accent-cyan:  #7b61ff;
  --accent-amber: #00ff99;
  --text-primary: #b0d8e6;
  --text-dim:     #3a6a7a;
  --text-code:    #00d4ff;
}
[data-theme="cyan"] body {
  background-image:
    linear-gradient(rgba(0,212,255,0.03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(0,212,255,0.03) 1px, transparent 1px),
    linear-gradient(rgba(0,212,255,0.015) 1px, transparent 1px),
    linear-gradient(90deg, rgba(0,212,255,0.015) 1px, transparent 1px);
  background-size: 40px 40px, 40px 40px, 8px 8px, 8px 8px;
}
[data-theme="cyan"] h1 {
  text-shadow: 0 0 8px rgba(0,212,255,0.8), 0 0 20px rgba(0,212,255,0.4);
}

/* ----- Amber（橙系） ----- */
[data-theme="amber"] {
  --bg-base:      #0d0800;
  --bg-surface:   #160d00;
  --bg-panel:     #100900;
  --border-dim:   #2a1800;
  --border-glow:  #ffb700;
  --accent-green: #ffb700;
  --accent-cyan:  #ff6b35;
  --accent-amber: #ffe066;
  --text-primary: #e6d0a0;
  --text-dim:     #7a5a20;
  --text-code:    #ffb700;
}
[data-theme="amber"] body {
  background-image:
    linear-gradient(rgba(255,183,0,0.03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,183,0,0.03) 1px, transparent 1px),
    linear-gradient(rgba(255,183,0,0.015) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,183,0,0.015) 1px, transparent 1px);
  background-size: 40px 40px, 40px 40px, 8px 8px, 8px 8px;
}
[data-theme="amber"] h1 {
  text-shadow: 0 0 8px rgba(255,183,0,0.8), 0 0 20px rgba(255,183,0,0.4);
}

/* ----- Light（白系） ----- */
[data-theme="light"] {
  --bg-base:      #f4f7f4;
  --bg-surface:   #ffffff;
  --bg-panel:     #f0f4f0;
  --border-dim:   #c8d8c8;
  --border-glow:  #2a8a2a;
  --accent-green: #1e7a1e;
  --accent-cyan:  #0066aa;
  --accent-amber: #9a6800;
  --text-primary: #1a2a1a;
  --text-dim:     #6a8a6a;
  --text-code:    #1e7a1e;
}
[data-theme="light"] body {
  background-image:
    linear-gradient(rgba(0,100,0,0.04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(0,100,0,0.04) 1px, transparent 1px),
    linear-gradient(rgba(0,100,0,0.02) 1px, transparent 1px),
    linear-gradient(90deg, rgba(0,100,0,0.02) 1px, transparent 1px);
  background-size: 40px 40px, 40px 40px, 8px 8px, 8px 8px;
}
[data-theme="light"] h1 {
  text-shadow: none;
}
[data-theme="light"] header {
  background: linear-gradient(90deg, #e8f0e8 0%, #f2f8f2 50%, #e8f0e8 100%);
  box-shadow: 0 1px 0 rgba(0,100,0,0.1), 0 2px 8px rgba(0,0,0,0.08);
}
[data-theme="light"] header::before {
  background: linear-gradient(180deg, transparent, #1e7a1e, transparent);
}
[data-theme="light"] .status-dot {
  background: #1e7a1e;
  box-shadow: 0 0 6px #1e7a1e;
}
[data-theme="light"] .code-header {
  background: #e8f0e8;
}
[data-theme="light"] .code-header::before {
  color: #c8d8c8;
}
[data-theme="light"] .monitor-header {
  background: #e4f0f4;
  color: var(--accent-cyan);
}
[data-theme="light"] .monitor-header::before {
  color: var(--accent-cyan);
}
[data-theme="light"] #monitor-output {
  background: #f8fff8;
  color: #1e7a1e;
  text-shadow: none;
}
[data-theme="light"] #monitor-output.python-shell {
  background: #f8fff8;
  color: #1e7a1e;
  text-shadow: none;
}
[data-theme="light"] .tut-hdr,
[data-theme="light"] .tut-nav {
  background: #e8f0e8;
}
[data-theme="light"] .syntax-header {
  background: #e8f0e8;
}
/* CodeMirror ライト上書き（dracula テーマを無効化） */
[data-theme="light"] .CodeMirror {
  background: #ffffff !important;
  color: #1a2a1a !important;
}
[data-theme="light"] .CodeMirror-gutters {
  background: #f0f4f0 !important;
  border-right: 1px solid #c8d8c8 !important;
}
[data-theme="light"] .CodeMirror-linenumber {
  color: #8aaa8a !important;
}
[data-theme="light"] .CodeMirror-cursor {
  border-left-color: #1e7a1e !important;
}
[data-theme="light"] .CodeMirror-selected {
  background: rgba(0,100,0,0.12) !important;
}
/* Blockly toolbox ライト上書き */
[data-theme="light"] .blocklyToolboxDiv {
  background: #f0f6f0 !important;
  border-right: 1px solid #c8d8c8 !important;
}
[data-theme="light"] .blocklyTreeRow:hover {
  background: rgba(0,100,0,0.07) !important;
  border-left-color: rgba(0,100,0,0.3) !important;
}
[data-theme="light"] .blocklyTreeSelected {
  background: rgba(0,100,0,0.12) !important;
  border-left-color: #1e7a1e !important;
}
[data-theme="light"] .blocklyTreeSelected .blocklyTreeLabel {
  color: #1e7a1e !important;
  text-shadow: none !important;
}
[data-theme="light"] .blocklyTreeLabel {
  color: #4a6a4a !important;
}
[data-theme="light"] .blocklyMainBackground {
  fill: #f8fff8 !important;
}
[data-theme="light"] .blocklyFlyoutBackground {
  fill: #eef6ee !important;
}
[data-theme="light"] .blocklyScrollbarHandle {
  fill: #c0d8c0 !important;
}
[data-theme="light"] .blocklyScrollbarHandle:hover {
  fill: #1e7a1e !important;
}
[data-theme="light"] .divider {
  background: linear-gradient(180deg,
    transparent 0%,
    #1e7a1e 20%,
    rgba(30,122,30,0.3) 50%,
    #1e7a1e 80%,
    transparent 100%
  );
  box-shadow: 0 0 6px rgba(30,122,30,0.2);
}
[data-theme="light"] .code-panel::after {
  background: none;
}
[data-theme="light"] .tutorial-panel::after {
  background: none;
}

/* フォントサイズボタン */
#btn-font-inc,
#btn-font-dec {
  color: var(--text-dim);
  border-color: var(--border-dim);
  font-size: 0.7rem;
  padding: 7px 10px;
  letter-spacing: 0.02em;
}
#btn-font-inc:hover,
#btn-font-dec:hover {
  color: var(--accent-cyan);
  border-color: var(--accent-cyan);
  background: transparent;
}

/* テーマボタン */
#btn-theme {
  color: var(--text-dim);
  border-color: var(--border-dim);
  font-size: 0.7rem;
  padding: 7px 12px;
  letter-spacing: 0.04em;
}
#btn-theme:hover {
  color: var(--accent-green);
  border-color: var(--accent-green);
  background: transparent;
}