/* ============================================================
   佳刻 Jiake · 沉浸式专注
   风格：深色沉浸 + 毛玻璃 + 场景氛围
   ============================================================ */

:root {
  --glass-bg: rgba(10, 14, 18, 0.42);
  --glass-border: rgba(255, 255, 255, 0.14);
  --glass-blur: 18px;
  --text-main: rgba(255, 255, 255, 0.92);
  --text-dim: rgba(255, 255, 255, 0.55);
  --text-faint: rgba(255, 255, 255, 0.32);
  --accent: #e8f0e4;
  --work-color: #f5f5f0;
  --break-color: #9fe8c0;
  --danger: #ff7a7a;
  --ring-size: 280px;
  --font-num: 'Geist', 'SF Mono', 'PingFang SC', sans-serif;
  --font-cn: -apple-system, BlinkMacSystemFont, "PingFang SC", "Hiragino Sans GB",
    "Microsoft YaHei", "Segoe UI", sans-serif;
}

* { margin: 0; padding: 0; box-sizing: border-box; }

html, body {
  height: 100%;
  overflow: hidden;
  font-family: var(--font-cn);
  color: var(--text-main);
  background: #05070a;
  user-select: none;
  -webkit-font-smoothing: antialiased;
}

/* ============ 背景视频 ============ */
.scene-bg {
  position: fixed;
  inset: 0;
  z-index: 0;
  background: #05070a;
}
.scene-bg video {
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: 0;
  transition: opacity 1.2s ease;
  filter: saturate(0.94) brightness(0.96);
}
.scene-bg video.visible { opacity: 1; }

/* 暗角 + 底部渐变，增强沉浸 */
.vignette {
  position: fixed;
  inset: 0;
  z-index: 1;
  pointer-events: none;
  background:
    radial-gradient(ellipse at 50% 42%, transparent 52%, rgba(0,0,0,0.42) 100%),
    linear-gradient(to top, rgba(0,0,0,0.62) 0%, transparent 22%),
    linear-gradient(to bottom, rgba(0,0,0,0.38) 0%, transparent 16%);
}

/* ============ 毛玻璃面板 ============ */
.glass {
  background: var(--glass-bg);
  backdrop-filter: blur(var(--glass-blur));
  -webkit-backdrop-filter: blur(var(--glass-blur));
  border: 1px solid var(--glass-border);
  border-radius: 22px;
  box-shadow: 0 18px 50px rgba(0,0,0,0.45);
}

/* ============ 顶部栏 ============ */
.topbar {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 20;
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 20px 28px;
  pointer-events: none;
}
.logo {
  font-size: 20px;
  font-weight: 600;
  letter-spacing: 2px;
  text-shadow: 0 2px 12px rgba(0,0,0,0.5);
  pointer-events: auto;
}
.logo-en {
  font-size: 11px;
  font-weight: 400;
  letter-spacing: 4px;
  color: var(--text-dim);
  margin-left: 8px;
  vertical-align: 2px;
}
.top-actions { display: flex; gap: 10px; pointer-events: auto; }

.icon-btn {
  width: 38px; height: 38px;
  display: inline-flex; align-items: center; justify-content: center;
  border-radius: 50%;
  border: 1px solid var(--glass-border);
  background: rgba(10, 14, 18, 0.35);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  color: var(--text-main);
  cursor: pointer;
  transition: background 0.2s, transform 0.15s;
}
.icon-btn:hover { background: rgba(255,255,255,0.16); }
.icon-btn:active { transform: scale(0.92); }
.icon-btn.small { width: 28px; height: 28px; font-size: 16px; }
.icon-btn.muted { color: var(--text-dim); }

/* ============ 番茄钟面板 ============ */
/* 默认（未开始）极简：只有开始按钮与模式选择；计时中才显示时间环 */
.timer-panel {
  position: fixed;
  left: 50%;
  top: 46%;
  transform: translate(-50%, -50%);
  z-index: 10;
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  padding: 0;
  background: transparent;
  border: none;
  box-shadow: none;
  backdrop-filter: none;
  -webkit-backdrop-filter: none;
}

.focus-task {
  min-height: 24px;
  margin-bottom: 18px;
  font-size: 14px;
  color: var(--text-dim);
  max-width: 100%;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}
.focus-task.has-task { color: var(--text-main); }

/* 时间环：默认隐藏，计时中才出现 */
.ring-wrap {
  position: relative;
  width: var(--ring-size);
  height: var(--ring-size);
  display: none;
}
body.timing .ring-wrap { display: block; }
.progress-ring { width: 100%; height: 100%; transform: rotate(-90deg); }
.ring-bg {
  fill: none;
  stroke: rgba(255,255,255,0.10);
  stroke-width: 6;
}
.ring-fg {
  fill: none;
  stroke: var(--work-color);
  stroke-width: 6;
  stroke-linecap: round;
  stroke-dasharray: 879.6;   /* 2πr, r=140 */
  stroke-dashoffset: 0;
  transition: stroke-dashoffset 0.9s linear, stroke 0.5s;
  filter: drop-shadow(0 0 8px rgba(255,255,255,0.35));
}

.time-display {
  position: absolute;
  inset: 0;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 4px;
}
.time {
  font-family: var(--font-num);
  font-size: 56px;
  font-weight: 300;
  letter-spacing: 2px;
  font-variant-numeric: tabular-nums;
  text-shadow: 0 3px 20px rgba(0,0,0,0.55);
}
.phase {
  font-size: 13px;
  letter-spacing: 6px;
  color: var(--text-dim);
  text-indent: 6px;
}
.phase.break { color: var(--break-color); }
.phase.paused { color: #ffd6a8; animation: tapBreathe 1.8s ease-in-out infinite; }

.mode-select {
  display: flex;
  gap: 8px;
  margin: 26px 0 18px;
  padding: 5px;
  background: rgba(255,255,255,0.08);
  border: 1px solid rgba(255,255,255,0.12);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-radius: 999px;
}
.mode-select button {
  border: none;
  background: transparent;
  color: var(--text-dim);
  font-size: 12px;
  font-weight: 500;
  letter-spacing: 1.5px;
  padding: 9px 20px;
  border-radius: 999px;
  cursor: pointer;
  transition: all 0.25s;
}
.mode-select button:hover { color: var(--text-main); }
.mode-select button.active {
  background: rgba(255,255,255,0.92);
  color: #101418;
}

/* 开始按钮：deepfocus 风格——玻璃半透明大胶囊，极简 */
.start-btn {
  min-width: 260px;
  padding: 18px 0;
  border: 1px solid rgba(255,255,255,0.18);
  border-radius: 999px;
  background: rgba(255,255,255,0.1);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  color: var(--text-main);
  font-size: 16px;
  font-weight: 500;
  letter-spacing: 6px;
  text-indent: 6px;
  cursor: pointer;
  transition: all 0.25s;
}
.start-btn:hover {
  background: rgba(255,255,255,0.18);
  border-color: rgba(255,255,255,0.35);
  transform: translateY(-1px);
}
.start-btn:active { transform: scale(0.98); }
.start-btn.running {
  background: transparent;
  border-color: rgba(255,255,255,0.45);
}

/* ============ 每日 Todo 面板 ============ */
/* 常驻开关（面板收起时也可见） */
.todo-tab {
  position: fixed;
  left: 0;
  top: 50%;
  transform: translateY(-50%);
  z-index: 25;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 4px;
  padding: 12px 6px;
  border: 1px solid var(--glass-border);
  border-left: none;
  border-radius: 0 14px 14px 0;
  background: rgba(10, 14, 18, 0.5);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  color: var(--text-dim);
  font-size: 10px;
  letter-spacing: 2px;
  cursor: pointer;
  transition: all 0.25s;
  opacity: 0;
  pointer-events: none;
}
.todo-tab.visible {
  opacity: 1;
  pointer-events: auto;
}
.todo-tab:hover {
  color: var(--text-main);
  background: rgba(255,255,255,0.14);
}

.todo-panel {
  position: fixed;
  left: 64px;
  top: 50%;
  transform: translateY(-50%);
  z-index: 10;
  width: 340px;
  max-height: 70vh;
  display: flex;
  flex-direction: column;
  padding: 24px 24px 18px;
  transition: transform 0.35s ease, opacity 0.35s ease;
}
.todo-panel.collapsed {
  transform: translateY(-50%) translateX(calc(-100% - 64px - 20px));
  opacity: 0;
  pointer-events: none;
}

.todo-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 14px;
}
.todo-header h3 {
  font-size: 17px;
  font-weight: 600;
  letter-spacing: 3px;
}

.date-nav {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 14px;
  font-size: 13px;
  color: var(--text-dim);
  letter-spacing: 0.5px;
}
.date-nav .today-btn {
  margin-left: auto;
  border: 1px solid var(--glass-border);
  background: rgba(255,255,255,0.08);
  color: var(--text-main);
  font-size: 11px;
  padding: 4px 10px;
  border-radius: 999px;
  cursor: pointer;
  transition: background 0.2s;
}
.date-nav .today-btn:hover { background: rgba(255,255,255,0.18); }
.date-nav .today-btn.hidden { visibility: hidden; }

.todo-input-row {
  display: flex;
  gap: 8px;
  margin-bottom: 14px;
}
.todo-input-row input {
  flex: 1;
  background: rgba(255,255,255,0.09);
  border: 1px solid var(--glass-border);
  border-radius: 12px;
  padding: 10px 14px;
  color: var(--text-main);
  font-size: 13px;
  outline: none;
  transition: border 0.2s, background 0.2s;
}
.todo-input-row input::placeholder { color: var(--text-faint); }
.todo-input-row input:focus {
  border-color: rgba(255,255,255,0.45);
  background: rgba(255,255,255,0.13);
}
.add-btn {
  width: 40px;
  border: none;
  border-radius: 12px;
  background: rgba(255,255,255,0.92);
  color: #101418;
  font-size: 18px;
  cursor: pointer;
  transition: all 0.2s;
}
.add-btn:hover { background: #fff; }

.todo-progress {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 14px;
}
.progress-bar {
  flex: 1;
  height: 4px;
  border-radius: 999px;
  background: rgba(255,255,255,0.12);
  overflow: hidden;
}
.progress-fill {
  height: 100%;
  width: 0%;
  border-radius: 999px;
  background: linear-gradient(90deg, #ffd6e8, #c9b8ff, #a8e6ff);
  background-size: 200% 100%;
  transition: width 0.4s ease;
}
.progress-text {
  font-size: 12px;
  color: var(--text-dim);
  font-variant-numeric: tabular-nums;
}

.todo-list {
  list-style: none;
  overflow-y: auto;
  flex: 1;
  min-height: 0;
  max-height: 38vh;
  scrollbar-width: thin;
  scrollbar-color: rgba(255,255,255,0.2) transparent;
}
.todo-list::-webkit-scrollbar { width: 4px; }
.todo-list::-webkit-scrollbar-thumb { background: rgba(255,255,255,0.2); border-radius: 999px; }

.todo-item {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 9px 4px;
  border-bottom: 1px solid rgba(255,255,255,0.06);
  animation: slideIn 0.25s ease;
}
@keyframes slideIn {
  from { opacity: 0; transform: translateY(-6px); }
  to { opacity: 1; transform: translateY(0); }
}

.todo-check {
  width: 20px; height: 20px;
  flex-shrink: 0;
  border-radius: 50%;
  border: 1.5px solid rgba(255,255,255,0.4);
  background: transparent;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  color: transparent;
  font-size: 12px;
  transition: all 0.2s;
}
.todo-check:hover { border-color: rgba(255,255,255,0.8); }
.todo-item.done .todo-check {
  background: linear-gradient(135deg, #ffd6e8, #c9b8ff);
  border-color: transparent;
  color: #3d2b52;
  animation: popCheck 0.35s cubic-bezier(0.34, 1.56, 0.64, 1);
}
@keyframes popCheck {
  0% { transform: scale(0.6); }
  60% { transform: scale(1.25); }
  100% { transform: scale(1); }
}
.todo-text {
  flex: 1;
  font-size: 13.5px;
  line-height: 1.45;
  word-break: break-word;
  user-select: text;
  cursor: pointer;
  transition: color 0.2s;
}
.todo-item.done .todo-text {
  color: var(--text-faint);
  text-decoration: line-through;
}
.todo-focus-btn {
  flex-shrink: 0;
  border: 1px solid var(--glass-border);
  background: rgba(255,255,255,0.07);
  color: var(--text-dim);
  font-size: 11px;
  padding: 3px 9px;
  border-radius: 999px;
  cursor: pointer;
  transition: all 0.2s;
  opacity: 0.55;
}
.todo-item:hover .todo-focus-btn { opacity: 1; }
.todo-focus-btn:hover { background: rgba(255,255,255,0.2); color: var(--text-main); }
.todo-focus-btn.active {
  background: var(--break-color);
  color: #0b1a12;
  border-color: var(--break-color);
  opacity: 1;
}
.todo-del {
  flex-shrink: 0;
  width: 22px; height: 22px;
  border: none;
  background: transparent;
  color: var(--text-faint);
  font-size: 15px;
  cursor: pointer;
  border-radius: 50%;
  transition: all 0.2s;
  opacity: 0;
}
.todo-item:hover .todo-del { opacity: 1; }
.todo-del:hover { color: var(--danger); background: rgba(255,122,122,0.12); }

.todo-empty {
  text-align: center;
  color: var(--text-faint);
  font-size: 13px;
  padding: 26px 0 14px;
}

.rollover-btn {
  margin-top: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  border: 1px dashed var(--glass-border);
  background: transparent;
  color: var(--text-dim);
  font-size: 12px;
  padding: 9px 0;
  border-radius: 12px;
  cursor: pointer;
  transition: all 0.2s;
}
.rollover-btn:hover {
  color: var(--text-main);
  border-color: rgba(255,255,255,0.4);
  background: rgba(255,255,255,0.06);
}

/* ============ 场景选择栏 ============ */
.scene-bar {
  position: fixed;
  bottom: 0; left: 0; right: 0;
  z-index: 20;
  padding: 18px 0 24px;
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 8px;
}
.scene-arrow {
  flex-shrink: 0;
  width: 34px; height: 34px;
  border-radius: 50%;
  border: 1px solid var(--glass-border);
  background: rgba(10, 14, 18, 0.4);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  color: var(--text-dim);
  font-size: 18px;
  cursor: pointer;
  transition: all 0.2s;
  opacity: 0.7;
}
.scene-arrow:hover { background: rgba(255,255,255,0.16); color: var(--text-main); opacity: 1; }
.scene-arrow:active { transform: scale(0.9); }
.scene-arrow.hidden { opacity: 0; pointer-events: none; }

.scene-list {
  display: flex;
  gap: 14px;
  padding: 14px;
  border-radius: 20px;
  background: rgba(10, 14, 18, 0.28);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border: 1px solid rgba(255,255,255,0.08);
  overflow-x: auto;
  max-width: 80vw;
  scrollbar-width: none;
  cursor: grab;
  scroll-behavior: smooth;
  -webkit-overflow-scrolling: touch;
}
.scene-list.dragging {
  cursor: grabbing;
  scroll-behavior: auto;
  user-select: none;
}
.scene-list::-webkit-scrollbar { display: none; }

.scene-item {
  position: relative;
  width: 176px;
  height: 112px;
  flex-shrink: 0;
  overflow: hidden;
  border-radius: 12px;
  border: 1px solid rgba(255,255,255,0.1);
  background: transparent;
  padding: 0;
  cursor: pointer;
  transition: all 0.3s;
  text-align: center;
  opacity: 0.75;
}
.scene-item img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  filter: saturate(0.85);
  transition: all 0.3s;
}
/* 底部渐变 + 内嵌场景名 */
.scene-item::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(to top, rgba(0,0,0,0.62) 0%, transparent 45%);
  pointer-events: none;
}
.scene-name {
  position: absolute;
  left: 0; right: 0;
  bottom: 8px;
  z-index: 2;
  display: block;
  font-size: 12px;
  letter-spacing: 2px;
  color: rgba(255,255,255,0.92);
  text-shadow: 0 1px 8px rgba(0,0,0,0.7);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.scene-item:hover {
  opacity: 0.95;
  border-color: rgba(255,255,255,0.28);
}
.scene-item:hover img { filter: saturate(1); }
.scene-item.active {
  opacity: 1;
  border-color: rgba(255,255,255,0.85);
  box-shadow: 0 6px 26px rgba(0,0,0,0.45);
}
.scene-item.active img { filter: saturate(1.05); }
.scene-item.active .scene-name { color: #fff; }

/* 场景切换遮罩（模仿 deepfocus 过渡） */
.scene-fade {
  position: fixed;
  inset: 0;
  z-index: 50;
  background: rgba(0,0,0,0.55);
  backdrop-filter: blur(6px);
  -webkit-backdrop-filter: blur(6px);
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.35s ease;
}
.scene-fade.show { opacity: 1; }

/* 今日专注统计 + 分享 */
.focus-stats {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-top: 14px;
}
.stat-card {
  flex: 1;
  display: flex;
  align-items: baseline;
  gap: 8px;
  padding: 10px 14px;
  border-radius: 14px;
  background: rgba(255,255,255,0.08);
  border: 1px solid var(--glass-border);
}
.stat-label { font-size: 11px; color: var(--text-faint); letter-spacing: 1px; }
.stat-value { font-size: 16px; font-weight: 600; color: var(--text-main); font-variant-numeric: tabular-nums; }
.stat-sub { font-size: 11px; color: var(--text-dim); }
.share-btn {
  flex-shrink: 0;
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 10px 14px;
  border-radius: 14px;
  border: 1px solid rgba(255,255,255,0.22);
  background: rgba(255,255,255,0.1);
  color: var(--text-main);
  font-size: 12px;
  cursor: pointer;
  transition: all 0.2s;
}
.share-btn:hover { background: rgba(255,255,255,0.2); border-color: rgba(255,255,255,0.4); }
.share-btn:active { transform: scale(0.96); }
.share-btn.loading { opacity: 0.5; pointer-events: none; }

/* 今日完成 */
.done-section {
  margin-top: 14px;
  padding-top: 12px;
  border-top: 1px dashed rgba(255,255,255,0.14);
}
.done-title {
  font-size: 11px;
  letter-spacing: 2px;
  color: var(--text-faint);
  margin-bottom: 6px;
}
.done-list { list-style: none; max-height: 96px; overflow-y: auto; scrollbar-width: thin; }
.done-list::-webkit-scrollbar { width: 3px; }
.done-list::-webkit-scrollbar-thumb { background: rgba(255,255,255,0.18); border-radius: 999px; }
.done-item {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 4px 2px;
  font-size: 12px;
  color: var(--text-dim);
}
.done-item::before { content: '✓'; color: var(--break-color); font-size: 11px; }
.done-item span {
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

/* ============ 场景切换提示 ============ */
.scene-toast {
  position: fixed;
  top: 88px;
  left: 50%;
  transform: translateX(-50%) translateY(-14px);
  z-index: 30;
  padding: 10px 26px;
  border-radius: 999px;
  background: rgba(10, 14, 18, 0.55);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border: 1px solid var(--glass-border);
  font-size: 14px;
  letter-spacing: 2px;
  opacity: 0;
  pointer-events: none;
  transition: all 0.35s ease;
  white-space: nowrap;
}
.scene-toast.show {
  opacity: 1;
  transform: translateX(-50%) translateY(0);
}

/* ============ 欢迎仪式 ============ */
/* 打开页面：只有背景，UI 全隐藏，欢迎文案结束后点击屏幕进入 */
.welcome {
  position: fixed;
  inset: 0;
  z-index: 95;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 30px;
  cursor: pointer;
  transition: opacity 0.7s ease, visibility 0.7s;
}
.welcome.hide {
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
}
.welcome-main {
  font-size: 26px;
  letter-spacing: 6px;
  color: rgba(255,255,255,0.96);
  text-shadow: 0 3px 22px rgba(0,0,0,0.55);
  opacity: 0;
  animation: welcomeIn 1.1s cubic-bezier(0.22, 1, 0.36, 1) 0.8s forwards;
}
.welcome-tap {
  font-size: 15px;
  letter-spacing: 3px;
  color: rgba(255,255,255,0.7);
  text-shadow: 0 2px 14px rgba(0,0,0,0.5);
  opacity: 0;
  animation: welcomeTapIn 0.8s ease 3.6s forwards, tapBreathe 2.4s ease-in-out 4.4s infinite;
}
@keyframes welcomeIn {
  0% { opacity: 0; transform: translateY(18px); letter-spacing: 10px; }
  100% { opacity: 1; transform: translateY(0); letter-spacing: 6px; }
}
@keyframes welcomeTapIn {
  0% { opacity: 0; transform: translateY(10px); }
  100% { opacity: 1; transform: translateY(0); }
}
@keyframes tapBreathe {
  0%, 100% { opacity: 0.55; }
  50% { opacity: 1; }
}

/* 应用元素：默认隐藏，点击进入后依次淡入
   （动画帧包含元素原始 transform，避免覆盖居中/定位） */
body .topbar,
body .timer-panel,
body .todo-panel,
body .scene-bar,
body .todo-tab { opacity: 0; }

body.entered .topbar { animation: fadeInDown 0.8s ease 0.15s both; }
body.entered .timer-panel { animation: timerIn 0.8s ease 0.35s both; }
body.entered .todo-panel { animation: todoIn 0.8s ease 0.55s both; }
body.entered .scene-bar { animation: fadeInUp 0.8s ease 0.75s both; }
body.entered .todo-tab { animation: tabIn 0.8s ease 0.75s both; }
@keyframes fadeInDown {
  0% { opacity: 0; transform: translateY(-18px); }
  100% { opacity: 1; transform: translateY(0); }
}
@keyframes fadeInUp {
  0% { opacity: 0; transform: translateY(22px); }
  100% { opacity: 1; transform: translateY(0); }
}
@keyframes timerIn {
  0% { opacity: 0; transform: translate(-50%, calc(-50% + 26px)); }
  100% { opacity: 1; transform: translate(-50%, -50%); }
}
@keyframes todoIn {
  0% { opacity: 0; transform: translateY(calc(-50% + 26px)); }
  100% { opacity: 1; transform: translateY(-50%); }
}
@keyframes tabIn {
  0% { opacity: 0; transform: translateY(calc(-50% - 26px)); }
  100% { opacity: 1; transform: translateY(-50%); }
}
/* 入场结束后移除动画（避免与沉浸模式的 transform 冲突），并保持可见；
   沉浸模式时该规则不生效，让 immersive 的隐藏优先生效 */
body.entered.entered-done:not(.immersive) .topbar,
body.entered.entered-done:not(.immersive) .timer-panel,
body.entered.entered-done:not(.immersive) .todo-panel,
body.entered.entered-done:not(.immersive) .scene-bar,
body.entered.entered-done:not(.immersive) .todo-tab {
  animation: none;
  opacity: 1;
}

/* ============ 沉浸专注模式 ============ */
/* 开始专注后：只留背景、时间与进度环，毛玻璃面板与按钮全部隐去 */
body.immersive .topbar,
body.immersive .scene-bar,
body.immersive .todo-panel,
body.immersive .todo-tab {
  opacity: 0;
  pointer-events: none;
  transform: translateY(10px);
  animation: none;
}
body.immersive .scene-bar,
body.immersive .todo-tab { transform: none; }
body.immersive .timer-panel {
  background: transparent;
  backdrop-filter: none;
  -webkit-backdrop-filter: none;
  border: none;
  box-shadow: none;
  padding: 0;
  width: auto;
  animation: none;
  opacity: 1; /* 覆盖默认隐藏，确保沉浸时时间可见 */
}
body.immersive .timer-panel .focus-task,
body.immersive .timer-panel .mode-select,
body.immersive .timer-panel .start-btn {
  display: none;
}
body.immersive .timer-panel .time {
  font-size: 62px;
  letter-spacing: 2px;
}
body.immersive .timer-panel .phase {
  font-size: 13px;
  letter-spacing: 8px;
}
/* 沉浸时进度环更细更淡，让时间成为视觉主角 */
body.immersive .ring-fg,
body.immersive .ring-bg { stroke-width: 3; }
body.immersive .ring-bg { stroke: rgba(255,255,255,0.10); }
body.immersive .ring-fg { filter: drop-shadow(0 0 6px rgba(255,255,255,0.25)); }
body.immersive .time-display { cursor: pointer; }

/* ============ 响应式 ============ */
@media (max-width: 1280px) {
  .timer-panel { width: 340px; padding: 26px 26px 24px; }
  .todo-panel { left: 24px; width: 300px; }
  .todo-panel.collapsed {
    transform: translateY(-50%) translateX(calc(-100% - 24px - 20px));
  }
}
@media (max-width: 1000px) {
  .timer-panel { width: 300px; top: 44%; padding: 22px 20px 20px; }
  .todo-panel { left: 16px; width: 264px; padding: 20px 16px 14px; }
  .todo-panel.collapsed {
    transform: translateY(-50%) translateX(calc(-100% - 16px - 20px));
  }
}
@media (max-width: 760px) {
  .timer-panel {
    right: 50%;
    transform: translate(50%, -50%);
    top: 42%;
    width: min(340px, 86vw);
  }
  .todo-panel {
    left: 50%;
    transform: translate(-50%, -50%);
    top: auto;
    bottom: 150px;
    width: min(360px, 92vw);
    max-height: 46vh;
  }
  .todo-panel.collapsed {
    transform: translate(-50%, -50%) translateY(30px);
  }
  .scene-item { width: 84px; }
}