/* ==========================================================
 *  style.css - SFX Designer Pro スタイルシート
 *  ダーク近未来UI / ガラスパネル / ネオンアクセント
 * ========================================================== */

/* ── リセット & ベース ── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

:root {
  --bg-dark: #080c18;
  --bg-panel: rgba(16, 24, 48, 0.75);
  --bg-panel-hover: rgba(30, 40, 70, 0.85);
  --border: rgba(80, 130, 255, 0.18);
  --border-bright: rgba(0, 212, 255, 0.4);
  --accent: #00d4ff;
  --accent2: #ff66b2;
  --accent3: #66ff88;
  --text: #ccdae8;
  --text-dim: #6680aa;
  --text-bright: #ffffff;
  --danger: #ff4466;
  --success: #44ff88;
  --glass-blur: blur(12px);
  --radius: 10px;
  --radius-sm: 6px;
}

body {
  font-family: 'Segoe UI', 'Yu Gothic UI', 'Noto Sans JP', sans-serif;
  background: var(--bg-dark);
  background-image:
    radial-gradient(ellipse at 20% 50%, rgba(0, 40, 120, 0.3), transparent 60%),
    radial-gradient(ellipse at 80% 20%, rgba(80, 0, 120, 0.2), transparent 50%);
  color: var(--text);
  min-height: 100vh;
  overflow-x: hidden;
}

/* ── レイアウト ── */
.app-layout {
  display: grid;
  grid-template-rows: auto 1fr 180px;
  grid-template-columns: 240px 1fr 360px;
  grid-template-areas:
    "header  header  header"
    "left    center  right"
    "footer  footer  right";
  height: 100vh;
  gap: 0;
}

@media (max-width: 1100px) {
  .app-layout {
    grid-template-columns: 200px 1fr 310px;
  }
}
@media (max-width: 800px) {
  .app-layout {
    grid-template-columns: 1fr;
    grid-template-rows: auto auto 1fr auto 180px;
    grid-template-areas: "header" "left" "center" "right" "footer";
    height: auto;
  }
  .sidebar-left, .sidebar-right { max-height: 300px; overflow-y: auto; }
}

/* ── ヘッダー ── */
.app-header {
  grid-area: header;
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 6px 12px;
  background: rgba(10, 16, 35, 0.95);
  border-bottom: 1px solid var(--border);
  flex-wrap: wrap;
  z-index: 100;
}

.app-header h1 {
  font-size: 1rem;
  font-weight: 700;
  color: var(--accent);
  margin-right: 12px;
  white-space: nowrap;
  text-shadow: 0 0 12px rgba(0, 212, 255, 0.3);
}
.app-header h1 small {
  display: block;
  font-size: 0.65rem;
  color: var(--text-dim);
  font-weight: 400;
}

.header-sep {
  width: 1px;
  height: 26px;
  background: var(--border);
  margin: 0 4px;
}

/* ── ボタン ── */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  padding: 5px 12px;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  background: var(--bg-panel);
  color: var(--text);
  font-size: 0.8rem;
  cursor: pointer;
  transition: all 0.15s;
  white-space: nowrap;
}
.btn:hover {
  background: var(--bg-panel-hover);
  border-color: var(--border-bright);
  color: var(--text-bright);
  box-shadow: 0 0 10px rgba(0, 212, 255, 0.15);
}
.btn-primary {
  background: linear-gradient(135deg, rgba(0,212,255,0.25), rgba(0,100,200,0.25));
  border-color: var(--accent);
  color: var(--accent);
}
.btn-primary:hover {
  background: linear-gradient(135deg, rgba(0,212,255,0.4), rgba(0,100,200,0.4));
  box-shadow: 0 0 15px rgba(0, 212, 255, 0.3);
}
.btn-danger {
  border-color: var(--danger);
  color: var(--danger);
}
.btn-danger:hover {
  background: rgba(255, 68, 102, 0.2);
  box-shadow: 0 0 10px rgba(255, 68, 102, 0.3);
}
.btn-play {
  background: linear-gradient(135deg, rgba(0,220,120,0.3), rgba(0,180,80,0.3));
  border-color: var(--success);
  color: var(--success);
  font-weight: bold;
}
.btn-play:hover {
  box-shadow: 0 0 15px rgba(68, 255, 136, 0.3);
}
.btn-stop {
  border-color: var(--danger);
  color: var(--danger);
}
.btn-loop.active {
  background: rgba(255,170,0,0.2);
  border-color: #ffaa00;
  color: #ffaa00;
}

.btn-tiny {
  padding: 2px 6px;
  font-size: 0.7rem;
  border-radius: 3px;
  border: 1px solid rgba(255,255,255,0.15);
  background: rgba(255,255,255,0.05);
  color: var(--text-dim);
  cursor: pointer;
  transition: all 0.15s;
}
.btn-tiny:hover { background: rgba(255,255,255,0.15); color: #fff; }
.btn-tiny.active { background: rgba(0,212,255,0.25); color: var(--accent); border-color: var(--accent); }
.btn-mute.active { background: rgba(255,68,102,0.3); color: var(--danger); border-color: var(--danger); }
.btn-solo.active { background: rgba(255,170,0,0.3); color: #ffaa00; border-color: #ffaa00; }

/* ── サイドバー共通 ── */
.sidebar-left, .sidebar-right {
  overflow-y: auto;
  padding: 8px;
  background: rgba(10, 16, 35, 0.6);
  backdrop-filter: var(--glass-blur);
}
.sidebar-left { grid-area: left; border-right: 1px solid var(--border); }
.sidebar-right { grid-area: right; border-left: 1px solid var(--border); min-width: 0; }

.sidebar-title {
  font-size: 0.75rem;
  color: var(--text-dim);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  padding: 6px 4px 4px;
  border-bottom: 1px solid var(--border);
  margin-bottom: 6px;
}

/* ── 左サイドバー: 擬音語入力 ── */
.onomatopoeia-section {
  margin-bottom: 12px;
  padding: 8px;
  background: var(--bg-panel);
  border: 1px solid var(--border);
  border-radius: var(--radius);
}
.onomatopoeia-section label {
  display: block;
  font-size: 0.75rem;
  color: var(--text-dim);
  margin-bottom: 4px;
}
.onomatopoeia-section input[type="text"] {
  width: 100%;
  padding: 6px 8px;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  background: rgba(0,0,0,0.3);
  color: var(--text-bright);
  font-size: 0.9rem;
  margin-bottom: 6px;
}
.onomatopoeia-section input[type="text"]:focus {
  outline: none;
  border-color: var(--accent);
  box-shadow: 0 0 8px rgba(0,212,255,0.2);
}
.onomatopoeia-section .btn { width: 100%; justify-content: center; }

.analysis-result {
  margin-top: 8px;
  padding: 6px;
  background: rgba(0,212,255,0.08);
  border-radius: var(--radius-sm);
  font-size: 0.75rem;
  color: var(--accent);
  display: none;
}
.analysis-result.show { display: block; }

/* ── 左サイドバー: プリセット ── */
.preset-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 4px;
  margin-bottom: 12px;
}
.preset-btn {
  padding: 4px 6px;
  font-size: 0.7rem;
  text-align: center;
  border: 1px solid var(--border);
  border-radius: 4px;
  background: var(--bg-panel);
  color: var(--text);
  cursor: pointer;
  transition: all 0.15s;
}
.preset-btn:hover {
  border-color: var(--accent);
  background: rgba(0,212,255,0.1);
  color: var(--accent);
}

/* ── 左サイドバー: レイヤーリスト ── */
.layer-item {
  display: flex;
  align-items: center;
  gap: 5px;
  padding: 5px 6px;
  border: 1px solid transparent;
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: all 0.15s;
  margin-bottom: 2px;
}
.layer-item:hover { background: rgba(255,255,255,0.05); }
.layer-item.selected {
  background: rgba(0,212,255,0.12);
  border-color: var(--accent);
}
.layer-color-dot {
  width: 10px; height: 10px;
  border-radius: 50%;
  flex-shrink: 0;
}
.layer-name {
  flex: 1;
  font-size: 0.8rem;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}
.layer-empty {
  text-align: center;
  color: var(--text-dim);
  font-size: 0.8rem;
  padding: 20px;
}

/* ── 中央パネル ── */
.center-panel {
  grid-area: center;
  display: flex;
  flex-direction: column;
  overflow: hidden;
  background: rgba(8, 12, 24, 0.5);
  min-width: 0;
}

.waveform-section {
  padding: 6px 10px;
  border-bottom: 1px solid var(--border);
}
.waveform-section canvas {
  width: 100%;
  height: 60px;
  background: rgba(0,0,0,0.3);
  border-radius: var(--radius-sm);
}

.timeline-section {
  flex: 1;
  overflow: hidden;
  min-height: 120px;
}
.timeline-section canvas {
  width: 100%;
  display: block;
}

.automation-section {
  border-top: 1px solid var(--border);
  padding: 0;
}
.automation-header {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 4px 10px;
  background: rgba(10, 16, 35, 0.8);
}
.automation-header label {
  font-size: 0.75rem;
  color: var(--text-dim);
}
.automation-header select {
  padding: 3px 6px;
  border: 1px solid var(--border);
  border-radius: 4px;
  background: rgba(0,0,0,0.4);
  color: var(--text);
  font-size: 0.75rem;
}
.automation-header select:focus {
  outline: none;
  border-color: var(--accent);
}
.automation-section canvas {
  width: 100%;
  display: block;
}

/* ── 右サイドバー: 詳細パネル ── */
.detail-section {
  margin-bottom: 4px;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  overflow: hidden;
}
.section-header {
  padding: 6px 8px;
  background: rgba(20, 30, 55, 0.8);
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--text);
  cursor: pointer;
  user-select: none;
  transition: background 0.15s;
}
.section-header:hover { background: rgba(30, 45, 75, 0.9); }
.section-arrow { display: inline-block; transition: transform 0.2s; }
.detail-section.collapsed .section-body { display: none; }
.detail-section.collapsed .section-arrow { transform: rotate(-90deg); }

.section-body {
  padding: 6px 8px;
  background: var(--bg-panel);
}

.param-row {
  display: flex;
  align-items: center;
  gap: 6px;
  margin-bottom: 5px;
  font-size: 0.78rem;
}
.param-row label {
  min-width: 80px;
  color: var(--text-dim);
  font-size: 0.72rem;
  flex-shrink: 0;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}
.param-row input[type="range"] {
  flex: 1;
  height: 4px;
  -webkit-appearance: none;
  appearance: none;
  background: rgba(255,255,255,0.1);
  border-radius: 2px;
  outline: none;
}
.param-row input[type="range"]::-webkit-slider-thumb {
  -webkit-appearance: none;
  width: 12px; height: 12px;
  border-radius: 50%;
  background: var(--accent);
  border: 2px solid rgba(255,255,255,0.3);
  cursor: pointer;
}
.param-row input[type="range"]:hover::-webkit-slider-thumb {
  box-shadow: 0 0 8px rgba(0,212,255,0.5);
}
.param-val {
  min-width: 44px;
  width: 44px;
  text-align: right;
  font-size: 0.72rem;
  color: var(--accent);
  font-family: monospace;
  flex-shrink: 0;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}
.param-row select {
  flex: 1;
  padding: 3px 6px;
  border: 1px solid var(--border);
  border-radius: 4px;
  background: rgba(0,0,0,0.4);
  color: var(--text);
  font-size: 0.75rem;
}

.checkbox-row { padding: 2px 0; }
.cb-label {
  display: flex;
  align-items: center;
  gap: 6px;
  cursor: pointer;
  color: var(--text);
  font-size: 0.78rem;
}
.cb-label input[type="checkbox"] {
  accent-color: var(--accent);
}

.fx-divider {
  border: none;
  border-top: 1px solid var(--border);
  margin: 8px 0;
}

.detail-empty {
  text-align: center;
  color: var(--text-dim);
  padding: 30px 10px;
  font-size: 0.85rem;
}

/* ── フッター ── */
.app-footer {
  grid-area: footer;
  border-top: 1px solid var(--border);
  background: rgba(10, 16, 35, 0.9);
  display: flex;
  flex-direction: column;
  min-height: 0;
  overflow: hidden;
}
.footer-tabs {
  display: flex;
  border-bottom: 1px solid var(--border);
}
.footer-tab {
  padding: 4px 14px;
  font-size: 0.75rem;
  color: var(--text-dim);
  cursor: pointer;
  border-bottom: 2px solid transparent;
  transition: all 0.15s;
}
.footer-tab:hover { color: var(--text); }
.footer-tab.active {
  color: var(--accent);
  border-bottom-color: var(--accent);
}
.footer-panels {
  flex: 1;
  overflow: hidden;
  position: relative;
}
.footer-panel {
  display: none;
  position: absolute;
  inset: 0;
  overflow-y: auto;
  padding: 6px 10px;
}
.footer-panel.active { display: block; }
.footer-panel pre {
  font-size: 0.72rem;
  color: var(--text);
  white-space: pre-wrap;
  word-break: break-all;
  font-family: 'Consolas', 'Source Code Pro', monospace;
  line-height: 1.4;
}

/* ── ログ ── */
.log-line {
  font-size: 0.7rem;
  font-family: monospace;
  padding: 1px 0;
  color: var(--text-dim);
}
.log-info { color: var(--text-dim); }
.log-error { color: var(--danger); }
.log-success { color: var(--success); }

/* ── トースト ── */
.toast {
  position: fixed;
  top: 10px;
  right: 10px;
  padding: 10px 20px;
  border-radius: var(--radius-sm);
  background: rgba(20, 30, 60, 0.95);
  border: 1px solid var(--accent);
  color: var(--text-bright);
  font-size: 0.85rem;
  z-index: 9999;
  transform: translateY(-60px);
  opacity: 0;
  transition: all 0.3s;
  pointer-events: none;
  backdrop-filter: var(--glass-blur);
}
.toast.show { transform: translateY(0); opacity: 1; }
.toast-error { border-color: var(--danger); color: var(--danger); }
.toast-success { border-color: var(--success); color: var(--success); }

/* ── スクロールバー ── */
::-webkit-scrollbar { width: 6px; height: 6px; }
::-webkit-scrollbar-track { background: rgba(0,0,0,0.2); }
::-webkit-scrollbar-thumb { background: rgba(100,150,255,0.2); border-radius: 3px; }
::-webkit-scrollbar-thumb:hover { background: rgba(100,150,255,0.4); }

/* ── zoom controls ── */
.zoom-controls {
  display: flex;
  align-items: center;
  gap: 4px;
  padding: 4px 10px;
  background: rgba(10, 16, 35, 0.6);
  border-bottom: 1px solid var(--border);
}
.zoom-controls .btn { padding: 3px 8px; font-size: 0.75rem; }
.zoom-controls label { font-size: 0.7rem; color: var(--text-dim); }

/* ── ファイル入力 ── */
input[type="file"] {
  font-size: 0.72rem;
  color: var(--text-dim);
  max-width: 140px;
}
input[type="file"]::file-selector-button {
  padding: 3px 8px;
  border: 1px solid var(--border);
  border-radius: 4px;
  background: var(--bg-panel);
  color: var(--text);
  font-size: 0.7rem;
  cursor: pointer;
}

/* ═══════════════════════════════════════════
   ■ ヘルプモーダル / チュートリアル / FAQ
   ═══════════════════════════════════════════ */

.btn-help {
  background: linear-gradient(135deg, rgba(100,60,255,0.25), rgba(255,102,178,0.18));
  border-color: rgba(160,100,255,0.4);
}
.btn-help:hover {
  background: linear-gradient(135deg, rgba(100,60,255,0.45), rgba(255,102,178,0.3));
}

.btn-faq {
  background: linear-gradient(135deg, rgba(0,180,120,0.25), rgba(0,212,255,0.18));
  border-color: rgba(0,200,150,0.4);
}
.btn-faq:hover {
  background: linear-gradient(135deg, rgba(0,180,120,0.45), rgba(0,212,255,0.3));
}

/* ── FAQ オーバーレイ ── */
.faq-overlay {
  position: fixed;
  top: 0; left: 0; right: 0; bottom: 0;
  z-index: 10001;
  background: rgba(4,6,20,0.75);
  backdrop-filter: blur(6px);
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  pointer-events: none;
  transition: opacity .3s ease;
}
.faq-overlay.show { opacity: 1; pointer-events: auto; }

.faq-modal {
  width: min(760px, 92vw);
  max-height: 84vh;
  display: flex; flex-direction: column;
  background: var(--bg-dark);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: 0 20px 60px rgba(0,0,0,0.7), 0 0 40px rgba(0,212,255,0.08);
  overflow: hidden;
  transform: translateY(20px);
  transition: transform .3s ease;
}
.faq-overlay.show .faq-modal { transform: translateY(0); }

.faq-modal-header {
  display: flex; align-items: center; justify-content: space-between;
  padding: 12px 18px;
  border-bottom: 1px solid var(--border);
  background: var(--bg-panel);
  flex-shrink: 0;
}
.faq-modal-title {
  font-size: 1rem;
  font-weight: 600;
  color: var(--text);
}
.faq-close {
  width: 30px; height: 30px;
  border: 1px solid var(--border);
  border-radius: 50%;
  background: transparent;
  color: var(--text-dim);
  font-size: 1rem;
  cursor: pointer;
  transition: all .2s;
  display: flex; align-items: center; justify-content: center;
  flex-shrink: 0;
}
.faq-close:hover {
  color: #ff6b6b;
  border-color: #ff6b6b;
  background: rgba(255,100,100,0.1);
}

.faq-search-bar {
  display: flex; gap: 8px; align-items: center;
  padding: 10px 18px;
  border-bottom: 1px solid var(--border);
  background: rgba(255,255,255,0.02);
  flex-shrink: 0;
  flex-wrap: wrap;
}
.faq-search-bar input {
  flex: 1; min-width: 180px;
  padding: 7px 12px;
  border: 1px solid var(--border);
  border-radius: 6px;
  background: var(--bg-dark);
  color: var(--text);
  font-size: 0.85rem;
  outline: none;
  transition: border-color .2s;
}
.faq-search-bar input:focus {
  border-color: var(--accent);
}
.faq-search-bar select {
  padding: 7px 8px;
  border: 1px solid var(--border);
  border-radius: 6px;
  background: var(--bg-dark);
  color: var(--text);
  font-size: 0.78rem;
  cursor: pointer;
}
.faq-result-count {
  font-size: 0.75rem;
  color: var(--text-dim);
  white-space: nowrap;
}

.faq-modal-body {
  flex: 1; overflow-y: auto;
  padding: 12px 18px;
}

.faq-cat-header {
  font-size: 0.82rem;
  font-weight: 700;
  color: var(--accent);
  padding: 10px 0 6px;
  border-bottom: 1px solid rgba(0,212,255,0.15);
  margin-bottom: 6px;
  margin-top: 8px;
}
.faq-cat-header:first-child { margin-top: 0; }

.faq-item {
  margin-bottom: 4px;
  border: 1px solid var(--border);
  border-radius: 6px;
  overflow: hidden;
  transition: border-color .2s;
}
.faq-item[open] {
  border-color: rgba(0,212,255,0.3);
}
.faq-question {
  padding: 9px 14px;
  font-size: 0.82rem;
  font-weight: 600;
  color: var(--text);
  cursor: pointer;
  list-style: none;
  background: rgba(255,255,255,0.02);
  transition: background .2s;
}
.faq-question:hover {
  background: rgba(0,212,255,0.06);
}
.faq-question::-webkit-details-marker { display: none; }
.faq-question::before {
  content: '▸ ';
  color: var(--accent);
}
.faq-item[open] .faq-question::before {
  content: '▾ ';
}
.faq-answer {
  padding: 8px 14px 12px;
  font-size: 0.8rem;
  line-height: 1.65;
  color: var(--text-dim);
  border-top: 1px solid var(--border);
  background: rgba(0,0,0,0.15);
}
.faq-answer mark,
.faq-question mark {
  background: rgba(0,212,255,0.25);
  color: var(--text);
  border-radius: 2px;
  padding: 0 2px;
}

.faq-empty {
  text-align: center;
  padding: 40px 20px;
  color: var(--text-dim);
  font-size: 0.85rem;
}

.faq-modal-footer {
  padding: 8px 18px;
  border-top: 1px solid var(--border);
  background: var(--bg-panel);
  flex-shrink: 0;
}
.faq-tip {
  font-size: 0.72rem;
  color: var(--text-dim);
}

/* ── ヘルプ オーバーレイ ── */
.help-overlay {
  position: fixed; inset: 0;
  z-index: 10000;
  background: rgba(4,6,20,0.75);
  backdrop-filter: blur(6px);
  display: flex; align-items: center; justify-content: center;
  opacity: 0;
  transition: opacity .3s ease;
}
.help-overlay.show { opacity: 1; }

/* ── モーダル本体 ── */
.help-modal {
  width: min(720px, 92vw);
  max-height: 82vh;
  display: flex; flex-direction: column;
  background: var(--bg-dark);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: 0 20px 60px rgba(0,0,0,0.7), 0 0 40px rgba(0,212,255,0.08);
  overflow: hidden;
}

.help-modal-header {
  display: flex; align-items: center; justify-content: space-between;
  padding: 10px 16px;
  border-bottom: 1px solid var(--border);
  background: var(--bg-panel);
  flex-shrink: 0;
}

.help-tabs { display: flex; gap: 4px; }
.help-tab {
  padding: 6px 14px;
  border: 1px solid transparent;
  border-radius: 6px;
  background: transparent;
  color: var(--text-dim);
  font-size: 0.82rem;
  cursor: pointer;
  transition: all .2s;
}
.help-tab:hover { color: var(--text); background: rgba(255,255,255,0.05); }
.help-tab.active {
  color: var(--accent);
  border-color: var(--accent);
  background: rgba(0,212,255,0.08);
}

.help-close {
  width: 30px; height: 30px;
  border: 1px solid var(--border);
  border-radius: 50%;
  background: transparent;
  color: var(--text-dim);
  font-size: 1rem;
  cursor: pointer;
  transition: all .2s;
  display: flex; align-items: center; justify-content: center;
}
.help-close:hover {
  color: #ff6b6b;
  border-color: #ff6b6b;
  background: rgba(255,100,100,0.1);
}

.help-modal-body {
  flex: 1; overflow-y: auto;
  padding: 20px 24px;
}

/* ── チュートリアル ── */
.tut-progress {
  height: 4px;
  background: rgba(255,255,255,0.06);
  border-radius: 2px;
  margin-bottom: 6px;
  overflow: hidden;
}
.tut-progress-bar {
  height: 100%;
  background: linear-gradient(90deg, var(--accent), var(--accent2));
  border-radius: 2px;
  transition: width .4s ease;
}
.tut-step-info {
  text-align: right;
  font-size: 0.72rem;
  color: var(--text-dim);
  margin-bottom: 16px;
}

.tut-content {
  text-align: center;
  margin-bottom: 24px;
}
.tut-icon {
  font-size: 2.4rem;
  margin-bottom: 8px;
}
.tut-title {
  font-size: 1.15rem;
  color: var(--accent);
  margin: 0 0 14px 0;
}
.tut-body {
  text-align: left;
  font-size: 0.85rem;
  line-height: 1.65;
  color: var(--text);
  white-space: pre-wrap;
  max-width: 560px;
  margin: 0 auto;
}

.tut-nav {
  display: flex; justify-content: space-between; align-items: center;
  padding-top: 12px;
  border-top: 1px solid var(--border);
}
.btn-primary {
  background: linear-gradient(135deg, rgba(0,212,255,0.3), rgba(0,120,255,0.2));
  border-color: var(--accent);
}

/* ── チュートリアルハイライト ── */
.tutorial-highlight {
  position: relative;
  z-index: 9999;
  outline: 2px solid var(--accent) !important;
  outline-offset: 3px;
  box-shadow: 0 0 20px rgba(0,212,255,0.35);
  animation: tut-pulse 1.5s ease-in-out infinite;
}
@keyframes tut-pulse {
  0%, 100% { box-shadow: 0 0 10px rgba(0,212,255,0.2); }
  50%      { box-shadow: 0 0 25px rgba(0,212,255,0.5); }
}

/* ── FAQ ── */
.faq-search { margin-bottom: 16px; }
.faq-search-input {
  width: 100%; box-sizing: border-box;
  padding: 8px 12px;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: rgba(255,255,255,0.04);
  color: var(--text);
  font-size: 0.85rem;
  outline: none;
  transition: border-color .2s;
}
.faq-search-input:focus {
  border-color: var(--accent);
}

.faq-category { margin-bottom: 18px; }
.faq-cat-title {
  font-size: 0.9rem;
  font-weight: 700;
  color: var(--accent2);
  margin-bottom: 8px;
  padding-bottom: 4px;
  border-bottom: 1px solid rgba(255,102,178,0.15);
}

.faq-item {
  border: 1px solid var(--border);
  border-radius: 6px;
  margin-bottom: 6px;
  overflow: hidden;
  transition: border-color .2s;
}
.faq-item:hover { border-color: rgba(0,212,255,0.3); }

.faq-q {
  padding: 10px 14px;
  font-size: 0.84rem;
  font-weight: 600;
  color: var(--text);
  cursor: pointer;
  display: flex; justify-content: space-between; align-items: center;
  user-select: none;
  transition: background .2s;
}
.faq-q:hover { background: rgba(255,255,255,0.03); }

.faq-toggle {
  font-size: 0.65rem;
  color: var(--text-dim);
  transition: transform .25s;
}
.faq-item.open .faq-toggle { transform: rotate(180deg); }

.faq-a {
  max-height: 0;
  overflow: hidden;
  padding: 0 14px;
  font-size: 0.8rem;
  line-height: 1.6;
  color: var(--text-dim);
  background: rgba(0,0,0,0.15);
  transition: max-height .35s ease, padding .35s ease;
}
.faq-item.open .faq-a {
  max-height: 800px;
  padding: 12px 14px;
}

.faq-empty {
  text-align: center;
  color: var(--text-dim);
  font-size: 0.85rem;
  padding: 30px 0;
}