/* ============================================================
   overlay.css — 实时驾驶助手（浮窗）样式
   ============================================================ */

/* 浮窗根容器：独立悬浮窗口（4:3 比例，不挤占主页空间，position:fixed） */
.overlay-float {
  position: fixed;
  top: 64px;
  right: 20px;
  width: 900px;
  height: min(675px, calc(100vh - 84px));
  background: var(--bg-deep);
  border: 1px solid var(--border-strong);
  border-radius: var(--r-lg);
  box-shadow: 0 24px 64px rgba(0, 0, 0, 0.6), 0 0 0 1px rgba(0, 0, 0, 0.4);
  display: flex; flex-direction: column;
  overflow: hidden;
  z-index: 300;
  animation: ov-pop var(--dur) var(--ease-out);
}
.overlay-float.dragging {
  box-shadow: 0 32px 80px rgba(0, 0, 0, 0.7), 0 0 0 1px var(--border-accent);
  opacity: 0.96;
}
@keyframes ov-pop {
  from { opacity: 0; transform: translateY(-10px) scale(0.97); }
  to { opacity: 1; transform: none; }
}

/* 模拟的"游戏画面"背景（让浮窗显得是叠加上去的） */
.game-bg {
  position: absolute; inset: 0;
  background:
    radial-gradient(circle at 30% 40%, rgba(0,229,255,0.08), transparent 50%),
    radial-gradient(circle at 70% 70%, rgba(255,87,34,0.06), transparent 50%),
    repeating-linear-gradient(45deg, #0a1419 0 20px, #0c161c 20px 40px);
  opacity: 0.6;
}
.game-bg::after {
  content: "GAME VIEW · 游戏画面区域 (模拟)";
  position: absolute; bottom: 12px; left: 50%; transform: translateX(-50%);
  font-size: 9px; color: rgba(255,255,255,0.15); letter-spacing: 0.2em;
}

/* 实时驾驶助手主体 */
.assistant {
  position: relative; z-index: 2;
  display: flex; flex-direction: column;
  height: 100%;
}

/* 顶栏 */
.ov-topbar {
  height: 44px; flex-shrink: 0;
  display: flex; align-items: center; gap: var(--sp-3);
  padding: 0 var(--sp-3);
  background: rgba(14,17,22,0.85);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
}
.ov-grip {
  width: 18px; height: 28px;
  display: flex; align-items: center; justify-content: center;
  color: var(--text-tertiary); cursor: move; flex-shrink: 0;
  border-radius: var(--r-xs);
}
.ov-grip:hover { color: var(--text-secondary); background: var(--bg-hover); }
.ov-grip .icon { width: 14px; height: 14px; }
.ov-session { display: flex; flex-direction: column; flex: 1; min-width: 0; }
.ov-session .g { font-size: 9.5px; color: var(--text-tertiary); text-transform: uppercase; letter-spacing: 0.08em; }
.ov-session .tc { font-size: 12px; font-weight: 600; display: flex; gap: 6px; align-items: center; }
.ov-mini-btn {
  width: 28px; height: 28px; border-radius: var(--r-xs);
  display: flex; align-items: center; justify-content: center;
  color: var(--text-secondary); transition: all var(--dur-fast) var(--ease);
}
.ov-mini-btn:hover { background: var(--bg-hover); color: var(--text-primary); }
.ov-topbar-note { font-size: 10.5px; color: var(--text-tertiary); margin-left: auto; padding: 0 var(--sp-3); white-space: nowrap; }

/* 内容区：左侧 Tab + 右侧 body */
.ov-content { flex: 1; display: flex; min-height: 0; }

/* Tab 条（竖向，左侧） */
.ov-tabs.vert {
  flex-direction: column; flex-shrink: 0;
  width: 116px; padding: var(--sp-2);
  background: rgba(10,12,15,0.6);
  border-right: 1px solid var(--border);
  border-bottom: none; gap: 2px;
}
.ov-tab {
  padding: 11px 8px;
  font-size: 12px; font-weight: 500; color: var(--text-secondary);
  cursor: pointer;
  border-radius: var(--r-sm);
  border-bottom: none;
  transition: all var(--dur-fast) var(--ease);
  display: flex; flex-direction: row; align-items: center; gap: 9px;
}
.ov-tab .icon { width: 16px; height: 16px; }
.ov-tab:hover { color: var(--text-primary); background: var(--bg-hover); }
.ov-tab.active { color: var(--accent); background: var(--accent-soft); }
.ov-tab.active::before {
  content: ""; display: none;
}

/* 内容滚动区 */
.ov-body { flex: 1; overflow-y: auto; padding: var(--sp-3); }
.ov-body::-webkit-scrollbar { width: 5px; }

/* 自由训练双栏：左悬浮窗 / 右 AI 助手 */
.free-layout { display: flex; gap: var(--sp-3); align-items: stretch; }
.free-col { flex: 1; min-width: 0; display: flex; flex-direction: column; background: rgba(22,26,33,0.5); border: 1px solid var(--border); border-radius: var(--r-md); overflow: hidden; }
.free-col-head {
  display: flex; align-items: center; gap: 8px;
  padding: 10px var(--sp-3); flex-shrink: 0;
  font-size: 12.5px; font-weight: 700; color: var(--text-primary);
  background: rgba(14,17,22,0.85); border-bottom: 1px solid var(--border);
}
.free-col-head .icon { width: 15px; height: 15px; color: var(--accent); }
.free-scroll { padding: var(--sp-3); display: flex; flex-direction: column; gap: var(--sp-3); }

/* 通用浮窗区块 */
.ov-panel { display: flex; flex-direction: column; gap: var(--sp-3); }
.ov-card {
  background: rgba(22,26,33,0.85);
  backdrop-filter: blur(8px);
  border: 1px solid var(--border);
  border-radius: var(--r-md);
  padding: var(--sp-3);
}
.ov-card-head {
  display: flex; align-items: center; justify-content: space-between;
  margin-bottom: var(--sp-2);
}
.ov-card-title { font-size: 11px; font-weight: 600; color: var(--text-secondary); text-transform: uppercase; letter-spacing: 0.05em; display: flex; align-items: center; gap: 6px; }

/* ===== 悬浮窗开关行 ===== */
.float-toggle-row {
  display: flex; align-items: center; justify-content: space-between;
  padding: 7px 0;
}
.float-toggle-row .label { font-size: 12px; display: flex; align-items: center; gap: 8px; }
.float-toggle-row .src { display: flex; align-items: center; gap: 6px; font-size: 11px; color: var(--text-tertiary); }
.float-toggle-row .src label { display: flex; align-items: center; gap: 3px; cursor: pointer; }

/* ===== 实时曲线小窗 ===== */
.float-win {
  background: rgba(14,17,22,0.9);
  border: 1px solid var(--border-strong);
  border-radius: var(--r-md);
  padding: var(--sp-2) var(--sp-3);
  position: relative;
}
.float-win-head {
  display: flex; align-items: center; justify-content: space-between;
  margin-bottom: 2px;
}
.float-win-title { font-size: 10.5px; font-weight: 600; color: var(--player); text-transform: uppercase; letter-spacing: 0.05em; }
.float-win .fw-close { width: 16px; height: 16px; }
.float-win-body { height: 56px; position: relative; }
.float-win-foot { display: flex; justify-content: space-between; font-size: 10px; color: var(--text-tertiary); }
.float-win .follow-badge {
  position: absolute; top: 4px; right: 8px;
  font-size: 9px; padding: 1px 6px; border-radius: var(--r-pill);
  background: var(--accent-soft); color: var(--accent);
}
.float-win.manual .follow-badge { background: var(--bg-surface-3); color: var(--text-tertiary); }
.float-win .back-live {
  position: absolute; top: 2px; right: 4px; z-index: 5;
  font-size: 9px; padding: 2px 7px; border-radius: var(--r-pill);
  background: var(--accent); color: #fff; display: none;
}
.float-win.manual .back-live { display: block; }

/* 踏板条 */
.pedal-mini { display: flex; gap: 6px; align-items: flex-end; height: 56px; padding: 4px 0; }
.pedal-mini .pcell { flex: 1; display: flex; flex-direction: column; align-items: center; gap: 3px; height: 100%; justify-content: flex-end; }
.pedal-mini .pbar { width: 100%; height: 40px; background: var(--bg-surface-3); border-radius: 3px; position: relative; overflow: hidden; }
.pedal-mini .pbar i { position: absolute; bottom: 0; left: 0; right: 0; border-radius: 3px; transition: height var(--dur) var(--ease); }
.pedal-mini .plabel { font-size: 9px; color: var(--text-tertiary); }

/* 方向盘指引 */
.wheel-guide-mini { display: flex; align-items: center; gap: 10px; padding: 4px 0; }
.wheel-info { display: flex; flex-direction: column; gap: 4px; font-size: 10px; }

/* 挡位提示大数字 */
.gear-big {
  display: flex; align-items: center; justify-content: center;
  height: 64px; flex-direction: column; gap: 2px;
}
.gear-big .g {
  font-size: 44px; font-weight: 800; font-family: var(--font-dig);
  line-height: 1; color: var(--player);
}
.gear-big.high .g { color: var(--danger); }
.gear-big.low .g { color: var(--success); }
.gear-big .sub { font-size: 9px; color: var(--text-tertiary); }

/* 速度比较 */
.speed-cmp { display: flex; align-items: baseline; gap: 6px; }
.speed-cmp .delta { font-size: 22px; font-weight: 700; font-family: var(--font-dig); }
.speed-cmp .delta.good { color: var(--success); } .speed-cmp .delta.mid { color: var(--warning); } .speed-cmp .delta.bad { color: var(--danger); } .speed-cmp .delta.none { color: var(--text-tertiary); }

/* 刹车点评价列表 */
.brake-review-list { display: flex; gap: 4px; flex-wrap: wrap; }
.brake-review-list .brc {
  display: flex; flex-direction: column; align-items: center;
  padding: 3px 7px; border-radius: var(--r-xs); font-size: 10px;
}
.brake-review-list .brc.good { background: rgba(46,204,113,0.15); color: var(--success); }
.brake-review-list .brc.mid { background: rgba(255,167,38,0.15); color: var(--warning); }
.brake-review-list .brc.bad { background: rgba(255,59,48,0.15); color: var(--danger); }

/* ===== 新手训练 ===== */
.rookie-intro { text-align: center; padding: var(--sp-3); }
.rookie-intro .ri-title { font-size: 14px; font-weight: 600; margin-bottom: 4px; }
.rookie-intro .ri-sub { font-size: 11px; color: var(--text-secondary); }

.stages { display: flex; gap: 4px; margin: var(--sp-3) 0; }
.stage-pill {
  flex: 1; padding: 10px 4px; border-radius: var(--r-sm);
  background: var(--bg-surface-2); border: 1px solid var(--border);
  text-align: center; cursor: pointer;
  transition: all var(--dur) var(--ease);
  display: flex; flex-direction: column; gap: 4px; align-items: center;
}
.stage-pill .num { font-size: 11px; font-weight: 700; color: var(--text-tertiary); font-family: var(--font-dig); }
.stage-pill .name { font-size: 10.5px; color: var(--text-secondary); }
.stage-pill:hover { border-color: var(--border-strong); }
.stage-pill.active { background: var(--accent-soft); border-color: var(--border-accent); }
.stage-pill.active .num, .stage-pill.active .name { color: var(--accent); }
.stage-pill.done .num { color: var(--success); }
.stage-pill.done::after { content: "✓"; position: absolute; }
.stage-pill { position: relative; }

.stage-detail { padding: var(--sp-3); background: var(--bg-surface); border-radius: var(--r-md); }
.stage-detail h4 { font-size: 13px; margin-bottom: var(--sp-1); }
.stage-info-grid { display: grid; grid-template-columns: 1fr 1fr; gap: var(--sp-2); margin: var(--sp-3) 0; font-size: 11px; }
.stage-info-grid .ig { background: var(--bg-surface-2); padding: 8px; border-radius: var(--r-xs); }
.stage-info-grid .ig .k { font-size: 9.5px; color: var(--text-tertiary); text-transform: uppercase; }
.stage-info-grid .ig .v { font-size: 12px; font-weight: 600; margin-top: 2px; }

.start-btn {
  width: 100%; height: 44px; border-radius: var(--r-sm);
  background: var(--accent); color: #fff; font-weight: 600; font-size: 14px;
  display: flex; align-items: center; justify-content: center; gap: 8px;
  transition: all var(--dur) var(--ease); margin-top: var(--sp-3);
}
.start-btn:hover { background: var(--accent-hover); }
.start-btn.running { background: var(--danger); }
.start-btn:disabled { background: var(--bg-surface-3); color: var(--text-tertiary); cursor: not-allowed; }

.countdown {
  position: absolute; inset: 0; z-index: 10;
  background: rgba(10,12,15,0.92); backdrop-filter: blur(8px);
  display: flex; flex-direction: column; align-items: center; justify-content: center;
  gap: 8px;
}
.countdown .cd-num {
  font-size: 96px; font-weight: 800; font-family: var(--font-dig);
  color: var(--accent); line-height: 1;
  animation: cdpop 1s var(--ease-out) infinite;
}
@keyframes cdpop { 0% { transform: scale(0.6); opacity: 0; } 30% { transform: scale(1.1); opacity: 1; } 100% { transform: scale(1); opacity: 0.9; } }
.countdown .cd-label { font-size: 13px; color: var(--text-secondary); }

/* 驾驶稳定性评分实时 */
.stability-card { text-align: center; padding: var(--sp-4); }
.stability-score { font-size: 48px; font-weight: 800; font-family: var(--font-dig); color: var(--accent); line-height: 1; }
.stability-score .max { font-size: 16px; color: var(--text-tertiary); }
.stability-bar { height: 6px; background: var(--bg-surface-3); border-radius: 3px; margin-top: var(--sp-2); overflow: hidden; }
.stability-bar i { display: block; height: 100%; background: linear-gradient(90deg, var(--danger), var(--warning), var(--success)); transition: width var(--dur-slow) var(--ease); }

/* 安全模式光效 */
.safe-mode-glow {
  position: absolute; inset: 0; pointer-events: none; z-index: 8;
  box-shadow: inset 0 0 60px rgba(255,59,48,0.5);
  border: 2px solid var(--danger);
  animation: safepulse 1s var(--ease) infinite;
  display: none;
}
.assistant.safe-mode .safe-mode-glow { display: block; }
@keyframes safepulse { 0%,100% { opacity: 0.6; } 50% { opacity: 1; } }

/* 自动挡提示条 */
.autoshift-tip {
  display: flex; align-items: center; gap: 8px;
  padding: 10px var(--sp-3); margin-bottom: var(--sp-3);
  background: rgba(255,167,38,0.15); border: 1px solid rgba(255,167,38,0.4);
  border-radius: var(--r-sm); color: var(--warning); font-size: 12px;
}
.autoshift-tip.done { background: var(--bg-surface-2); border-color: var(--border); color: var(--text-tertiary); }

/* ===== AI 驾驶助手 ===== */
.ai-master {
  display: flex; align-items: center; gap: var(--sp-3);
  padding: var(--sp-4); border-radius: var(--r-md);
  background: linear-gradient(135deg, rgba(255,87,34,0.12), rgba(255,87,34,0.04));
  border: 1px solid var(--border-accent);
}
.ai-master.off { background: var(--bg-surface); border-color: var(--border); }
.ai-master .am-info { flex: 1; }
.ai-master .am-title { font-size: 14px; font-weight: 700; }
.ai-master .am-sub { font-size: 11px; color: var(--text-secondary); margin-top: 2px; }

/* 开启前检查 */
.check-list { display: flex; flex-direction: column; gap: 6px; margin: var(--sp-3) 0; }
.check-item {
  display: flex; align-items: center; gap: 8px;
  padding: 8px 10px; border-radius: var(--r-xs);
  background: var(--bg-surface-2); font-size: 12px;
}
.check-item .ci-icon { width: 16px; height: 16px; }
.check-item.ok .ci-icon { color: var(--success); }
.check-item.fail { background: rgba(255,59,48,0.1); color: var(--danger); }
.check-item.fail .ci-icon { color: var(--danger); }

/* AI 等级 */
.level-seg { display: flex; gap: 2px; background: var(--bg-surface-2); padding: 3px; border-radius: var(--r-sm); }
.level-seg .ls { flex: 1; padding: 7px 4px; border-radius: 5px; text-align: center; font-size: 11.5px; cursor: pointer; color: var(--text-secondary); transition: all var(--dur-fast) var(--ease); }
.level-seg .ls:hover { color: var(--text-primary); }
.level-seg .ls.active { background: var(--accent); color: #fff; }

/* 设备控制卡 */
.dev-card { padding: var(--sp-3); }
.dev-card-head { display: flex; align-items: center; justify-content: space-between; margin-bottom: var(--sp-2); }
.dev-card-title { font-size: 12.5px; font-weight: 600; display: flex; align-items: center; gap: 6px; }
.dev-rows { display: flex; flex-direction: column; gap: var(--sp-2); }
.dev-row { display: flex; align-items: center; justify-content: space-between; font-size: 11.5px; padding: 6px 0; }
.dev-row .dr-label { color: var(--text-secondary); }
.dev-row.disabled .dr-label { color: var(--text-tertiary); }

/* 三档档位选择器 */
.tri-seg { display: flex; gap: 3px; }
.tri-seg .ts { padding: 4px 10px; border-radius: var(--r-xs); background: var(--bg-surface-3); font-size: 10.5px; cursor: pointer; transition: all var(--dur-fast) var(--ease); }
.tri-seg .ts:hover { background: var(--bg-elevated); }
.tri-seg .ts.active { background: var(--accent); color: #fff; }

/* ===== 训练评价 ===== */
.score-header { display: flex; align-items: center; gap: var(--sp-4); padding: var(--sp-4); background: var(--bg-surface); border-radius: var(--r-md); }
.score-total { font-size: 48px; font-weight: 800; font-family: var(--font-dig); color: var(--accent); line-height: 1; }
.score-meta { flex: 1; }
.score-meta .sm-row { display: flex; gap: var(--sp-4); margin-top: 4px; font-size: 11px; color: var(--text-secondary); }

.dim-bar { display: flex; flex-direction: column; gap: 6px; }
.dim-bar .db-row { display: flex; align-items: center; gap: 8px; font-size: 11.5px; }
.dim-bar .db-name { width: 90px; color: var(--text-secondary); }
.dim-bar .db-track { flex: 1; height: 8px; background: var(--bg-surface-3); border-radius: 4px; overflow: hidden; }
.dim-bar .db-track i { display: block; height: 100%; border-radius: 4px; }
.dim-bar .db-val { width: 32px; text-align: right; font-family: var(--font-dig); font-weight: 600; }

.lap-selector { display: flex; gap: 4px; flex-wrap: wrap; }
.lap-chip { padding: 4px 8px; border-radius: var(--r-xs); background: var(--bg-surface-2); font-size: 10.5px; cursor: pointer; border: 1px solid var(--border); }
.lap-chip:hover { border-color: var(--border-strong); }
.lap-chip.active { background: var(--accent-soft); border-color: var(--border-accent); color: var(--accent); }
.lap-chip.ai { color: var(--ai); border-color: rgba(0,229,255,0.3); }
.lap-chip.ai::after { content: " AI"; opacity: 0.6; }
.lap-chip.incomplete { color: var(--text-tertiary); }