/* R114 备考计时 */
:root {
  --primary-color: #FF6B6B;
  --secondary-color: #FFA94D;
  --bg-color: #FFF5F5;
  --accent-color: #FFD93D;
  --text-primary: #333;
  --text-secondary: #666;
  --card-bg: #fff;
  --card-shadow: 0 4px 20px rgba(255,107,107,.12);
  --focus-bg: #DB524D;
  --short-break-bg: #4CAF50;
  --long-break-bg: #4682B4;
  --bottom-nav-height: 56px;
  --contact-footer-h: 72px;
  --safe-area-bottom: env(safe-area-inset-bottom, 0px);
  --max-width: 480px;
  --timer-bg: var(--focus-bg);
}

[data-theme="dark"] {
  --bg-color: #1a1a2e;
  --card-bg: #16213e;
  --text-primary: #e8e8e8;
  --text-secondary: #aaa;
  --card-shadow: 0 4px 20px rgba(108,99,255,.15);
}

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { -webkit-tap-highlight-color: transparent; }
body {
  font-family: -apple-system, BlinkMacSystemFont, "PingFang SC", "Microsoft YaHei", sans-serif;
  background: var(--bg-color);
  color: var(--text-primary);
  min-height: 100dvh;
  max-width: var(--max-width);
  margin: 0 auto;
  padding-bottom: calc(var(--bottom-nav-height) + var(--contact-footer-h) + var(--safe-area-bottom) + 12px);
  transition: background .5s ease;
}
body.has-contact-footer { padding-bottom: calc(var(--bottom-nav-height) + var(--contact-footer-h) + var(--safe-area-bottom) + 12px); }

.hidden { display: none !important; }
.view { padding: 12px 14px 8px; min-height: 50vh; }
.view.hidden { display: none; }
.page-title { font-size: 20px; margin-bottom: 12px; }
.card { background: var(--card-bg); border-radius: 14px; padding: 14px; margin-bottom: 12px; box-shadow: var(--card-shadow); }
.hint { color: var(--text-secondary); font-size: 13px; }

.btn { border: none; border-radius: 10px; padding: 10px 16px; font-size: 14px; cursor: pointer; background: var(--card-bg); color: var(--text-primary); }
.btn-primary { background: var(--primary-color); color: #fff; }
.btn-outline { border: 1px solid var(--primary-color); color: var(--primary-color); background: transparent; }
.btn-block { display: block; width: 100%; margin-top: 8px; }
.btn-lg { padding: 14px 28px; font-size: 16px; border-radius: 28px; }
.btn-sm { padding: 6px 10px; font-size: 12px; }
.btn-icon { background: none; border: none; font-size: 20px; cursor: pointer; padding: 4px 8px; }

#bottom-nav {
  position: fixed; left: 50%; transform: translateX(-50%); bottom: calc(var(--contact-footer-h) + var(--safe-area-bottom));
  width: 100%; max-width: var(--max-width); height: var(--bottom-nav-height);
  display: flex; background: var(--card-bg); border-top: 1px solid rgba(0,0,0,.06); z-index: 100;
}
#bottom-nav a {
  flex: 1; display: flex; flex-direction: column; align-items: center; justify-content: center;
  text-decoration: none; color: var(--text-secondary); font-size: 11px; gap: 2px;
}
#bottom-nav a.active { color: var(--primary-color); font-weight: 600; }

/* M1 翻牌 */
.countdown-section { text-align: center; animation: slideUp .6s ease; }
.countdown-section.urgent { animation: breathe 2s ease-in-out infinite; }
.exam-toolbar { display: flex; flex-wrap: wrap; align-items: center; justify-content: center; gap: 8px; margin-bottom: 10px; }
.exam-switch { display: flex; gap: 6px; justify-content: center; flex-wrap: wrap; flex: 1; }
.btn-exam-manage { flex-shrink: 0; }
.exam-pill { border: 1px solid var(--pill-color, var(--primary-color)); background: transparent; color: var(--pill-color, var(--primary-color)); border-radius: 20px; padding: 4px 10px; font-size: 11px; cursor: pointer; }
.exam-pill.active { background: var(--pill-color, var(--primary-color)); color: #fff; border-color: transparent; }
.primary-badge { color: var(--primary-color); font-size: 12px; }
.exam-manage { text-align: left; margin-top: 14px; }
.exam-manage-list { list-style: none; margin: 10px 0; }
.exam-manage-item { display: grid; grid-template-columns: 8px 1fr auto; gap: 8px; align-items: center; padding: 10px 0; border-bottom: 1px solid rgba(0,0,0,.06); }
.exam-dot { width: 8px; height: 8px; border-radius: 50%; }
.exam-manage-info { display: flex; flex-direction: column; gap: 2px; font-size: 12px; }
.exam-manage-info strong { font-size: 14px; }
.exam-manage-info span { color: var(--text-secondary); }
.exam-manage-actions { display: flex; flex-wrap: wrap; gap: 4px; justify-content: flex-end; }
.btn-danger { color: #EF4444; border-color: #EF4444; }
.exam-form { margin-top: 12px; padding-top: 12px; border-top: 1px dashed rgba(0,0,0,.1); }
.exam-form h4 { margin-bottom: 10px; font-size: 15px; }
.exam-form label { display: block; margin-bottom: 10px; font-size: 13px; }
.exam-form input[type=text], .exam-form input[type=date] { width: 100%; margin-top: 4px; padding: 10px; border: 1px solid #ddd; border-radius: 8px; font-size: 14px; }
.color-presets { display: flex; flex-wrap: wrap; gap: 6px; align-items: center; margin-top: 6px; }
.color-swatch { width: 28px; height: 28px; border-radius: 50%; border: 2px solid transparent; cursor: pointer; padding: 0; }
.color-swatch.active { border-color: var(--text-primary); box-shadow: 0 0 0 2px var(--card-bg); }
.color-input { width: 36px; height: 28px; border: none; padding: 0; background: none; }
.exam-check { display: flex; align-items: center; gap: 6px; }
.exam-form-btns { display: flex; gap: 8px; flex-wrap: wrap; }
.exam-title { font-size: 18px; color: var(--exam-color, var(--primary-color)); margin: 8px 0; }
.exam-date { color: var(--text-secondary); font-size: 13px; }
.flip-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 8px; margin: 16px 0; }
.flip-unit { display: flex; flex-direction: column; align-items: center; }
.flip-label { font-size: 12px; color: var(--text-secondary); margin-bottom: 4px; }
.flip-card { background: var(--card-bg); border-radius: 10px; padding: 12px 8px; min-width: 64px; box-shadow: var(--card-shadow); perspective: 200px; }
.flip-num { font-size: 36px; font-weight: 800; color: var(--primary-color); display: block; }
.flip-card.flip-anim .flip-num { animation: flipIn .3s ease; }
.countdown-hint { font-size: 14px; color: var(--text-secondary); }

/* P2 */
.p2-badge { font-size: 10px; background: var(--primary-color); color: #fff; padding: 2px 6px; border-radius: 4px; vertical-align: middle; }
.p2-status-bar { margin-bottom: 10px; padding: 10px 12px; }
.status-row { display: flex; justify-content: space-between; font-size: 12px; gap: 6px; flex-wrap: wrap; }
.status-row strong { color: var(--primary-color); }
.status-progress { height: 6px; background: rgba(0,0,0,.06); border-radius: 3px; margin-top: 8px; overflow: hidden; }
.status-progress div { height: 100%; background: linear-gradient(90deg, var(--primary-color), var(--secondary-color)); border-radius: 3px; transition: width .6s ease; }
.particles-canvas { position: absolute; left: 0; top: 0; width: 100%; height: 280px; pointer-events: none; z-index: 0; opacity: .6; }
.focus-section > *:not(.particles-canvas) { position: relative; z-index: 1; }
.garden-hero { text-align: left; }
.garden-stage { display: flex; align-items: center; gap: 14px; margin-top: 10px; }
.garden-plant-icon { font-size: 56px; display: block; }
.garden-grow-anim { animation: gardenPop .6s ease; }
.garden-progress { height: 8px; background: var(--bg-color); border-radius: 4px; margin: 8px 0 4px; overflow: hidden; }
.garden-progress div { height: 100%; background: #4CAF50; border-radius: 4px; }
.garden-grid { display: grid; grid-template-columns: repeat(5, 1fr); gap: 6px; margin-top: 8px; }
.garden-slot { text-align: center; padding: 8px 4px; border-radius: 10px; background: var(--bg-color); font-size: 10px; }
.garden-slot.locked { filter: grayscale(1); opacity: .4; }
.garden-slot-icon { display: block; font-size: 24px; margin-bottom: 2px; }
@keyframes gardenPop { 0% { transform: scale(.6); } 50% { transform: scale(1.15); } 100% { transform: scale(1); } }

/* M2 番茄钟 */
.focus-section { position: relative; text-align: center; overflow: hidden; }
.mode-tabs { display: flex; gap: 6px; justify-content: center; margin-bottom: 12px; flex-wrap: wrap; }
.mode-btn { border: 1px solid #ddd; background: var(--card-bg); border-radius: 20px; padding: 6px 12px; font-size: 12px; cursor: pointer; }
.mode-btn.active { background: var(--timer-bg); color: #fff; border-color: transparent; }
.timer-ring-wrap { position: relative; width: 280px; height: 280px; margin: 0 auto 16px; }
.timer-ring { transform: rotate(-90deg); }
.ring-bg { fill: none; stroke: rgba(0,0,0,.08); stroke-width: 10; }
.ring-progress { fill: none; stroke: var(--primary-color); stroke-width: 10; stroke-linecap: round; transition: stroke-dashoffset .3s ease; }
.timer-center { position: absolute; inset: 0; display: flex; flex-direction: column; align-items: center; justify-content: center; }
.timer-digits { font-size: 48px; font-weight: 800; font-variant-numeric: tabular-nums; }
.timer-sub { font-size: 13px; color: var(--text-secondary); }
.timer-actions { display: flex; gap: 10px; justify-content: center; margin-bottom: 8px; }
.session-info { font-size: 13px; color: var(--text-secondary); }

/* M3 任务 */
.task-row { display: grid; grid-template-columns: 4px 1fr auto auto; gap: 8px; align-items: center; padding: 10px 0; border-bottom: 1px solid rgba(0,0,0,.05); }
.task-bar { width: 4px; height: 36px; border-radius: 2px; }
.task-row.done span { text-decoration: line-through; opacity: .5; }
.task-pomo { font-size: 12px; }

/* M4 规划 */
.planner-total { margin-bottom: 12px; font-size: 14px; }
.timeline { margin-top: 8px; }
.timeline-item { display: flex; gap: 10px; margin-bottom: 10px; }
.tl-dot { width: 10px; height: 10px; border-radius: 50%; margin-top: 6px; flex-shrink: 0; }
.tl-card { flex: 1; background: var(--bg-color); border-radius: 8px; padding: 8px 10px; }
.tl-card p { font-size: 13px; color: var(--text-secondary); margin-top: 2px; }
.tl-pomo { font-size: 12px; }

/* M5 统计 */
.summary-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; margin-bottom: 12px; }
.summary-card { text-align: center; padding: 16px 8px; }
.summary-card strong { display: block; font-size: 28px; color: var(--primary-color); margin: 4px 0; }
.summary-card span { font-size: 12px; color: var(--text-secondary); }
.sum-icon { font-size: 24px; }
.slide-in { animation: slideUp .5s ease forwards; animation-delay: calc(var(--i, 0) * 80ms); opacity: 0; }
.charts-row { display: flex; flex-direction: column; gap: 12px; }
.chart-card canvas { max-height: 200px; }

/* M6 热力图 */
.heat-head { display: flex; align-items: center; justify-content: space-between; margin-bottom: 8px; }
.heat-head h3 { font-size: 14px; }
.heat-grid { display: grid; grid-template-columns: repeat(7, 1fr); gap: 4px; }
.heat-cell { aspect-ratio: 1; border-radius: 3px; min-height: 14px; }
.heat-cell.empty { background: transparent; }

/* M9 白噪音 */
#noise-player { position: fixed; left: 50%; transform: translateX(-50%); bottom: calc(var(--bottom-nav-height) + var(--contact-footer-h) + var(--safe-area-bottom) + 4px); max-width: var(--max-width); width: 100%; z-index: 99; padding: 0 10px; }
.noise-inner { display: flex; align-items: center; gap: 6px; background: var(--card-bg); border-radius: 24px; padding: 6px 10px; box-shadow: var(--card-shadow); }
.noise-btn { border: none; background: var(--bg-color); border-radius: 50%; width: 36px; height: 36px; font-size: 18px; cursor: pointer; }
.noise-vol { flex: 1; max-width: 80px; }

/* M10 成就 */
.ach-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 8px; }
.ach-item { text-align: center; padding: 10px 4px; border-radius: 10px; background: var(--bg-color); font-size: 11px; }
.ach-item.locked { filter: grayscale(1); opacity: .45; }
.ach-icon { display: block; font-size: 28px; margin-bottom: 4px; }

/* M13 资料 */
.res-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 8px; }
.res-card { display: block; text-decoration: none; color: inherit; background: var(--bg-color); border-radius: 10px; padding: 10px; transition: transform .2s; }
.res-card:hover { transform: translateY(-2px); }
.res-icon { font-size: 24px; display: block; margin-bottom: 4px; }
.res-meta { font-size: 11px; color: var(--text-secondary); }

/* M12 用户表单 */
.user-form label { display: block; margin-bottom: 10px; font-size: 13px; }
.user-form input, .user-form select { width: 100%; margin-top: 4px; padding: 10px; border: 1px solid #ddd; border-radius: 8px; font-size: 14px; background: var(--card-bg); color: var(--text-primary); }
.scheme-btns { display: flex; flex-wrap: wrap; gap: 6px; margin-bottom: 8px; }

/* 庆祝弹层 */
#celebration-overlay { position: fixed; inset: 0; background: rgba(0,0,0,.5); z-index: 200; display: flex; align-items: center; justify-content: center; }
.celebration-box { background: var(--card-bg); border-radius: 16px; padding: 28px; text-align: center; animation: popIn .4s ease; }
.celebration-box span { font-size: 48px; }

/* 分享页 */
body.share-page { padding-top: 12px; }
.share-main { padding: 16px; }
.share-landing-card { background: var(--card-bg); border-radius: 14px; padding: 20px 16px; box-shadow: var(--card-shadow); }
.share-eyebrow { color: var(--primary-color); font-size: 13px; }
.share-tagline { color: var(--text-secondary); margin: 8px 0; font-size: 14px; }
.share-stats { display: grid; grid-template-columns: repeat(4,1fr); gap: 8px; margin: 14px 0; }
.share-stat { text-align: center; background: rgba(255,107,107,.08); border-radius: 8px; padding: 8px 4px; }
.share-stat strong { display: block; font-size: 16px; color: var(--primary-color); }
.share-stat span { font-size: 10px; color: var(--text-secondary); }
.share-cta { display: block; text-align: center; text-decoration: none; margin-top: 8px; }
.share-qr-block { text-align: center; margin-top: 16px; padding: 12px; background: var(--bg-color); border-radius: 10px; }

.toast { position: fixed; left: 50%; bottom: calc(var(--contact-footer-h) + var(--bottom-nav-height) + 40px); transform: translateX(-50%) translateY(20px); background: #333; color: #fff; padding: 10px 18px; border-radius: 20px; font-size: 13px; opacity: 0; transition: .3s; z-index: 300; pointer-events: none; }
.toast.show { opacity: 1; transform: translateX(-50%) translateY(0); }

.contact-footer { position: fixed; left: 0; right: 0; bottom: 0; z-index: 101; background: #1a1a1a; padding: 8px 12px calc(6px + var(--safe-area-bottom)); }
.contact-footer__btns { display: grid; grid-template-columns: repeat(3, minmax(0, 88px)); justify-content: center; gap: 8px; max-width: 320px; margin: 0 auto 4px; }
.contact-footer__cta { background: #c41e1e !important; color: #fff !important; text-align: center; border-radius: 6px; padding: .48rem .2rem; font-size: .72rem; text-decoration: none; }
.contact-footer__btn { background: transparent; border: 1px solid rgba(255,255,255,.35); color: #fff; border-radius: 6px; padding: .48rem .2rem; font-size: .72rem; cursor: pointer; text-decoration: none; text-align: center; }
.contact-footer__brand { text-align: center; font-size: .62rem; color: rgba(255,255,255,.5); margin: 0; }
body.has-contact-footer .zw-root .zw-fab { bottom: calc(var(--contact-footer-h) + var(--safe-area-bottom) + 8px); }

@keyframes slideUp { from { opacity: 0; transform: translateY(16px); } to { opacity: 1; transform: translateY(0); } }
@keyframes flipIn { from { transform: rotateX(-90deg); opacity: 0; } to { transform: rotateX(0); opacity: 1; } }
@keyframes breathe { 0%,100% { box-shadow: 0 0 0 0 rgba(255,107,107,.4); } 50% { box-shadow: 0 0 0 12px transparent; } }
@keyframes popIn { 0% { transform: scale(.5); opacity: 0; } 60% { transform: scale(1.1); } 100% { transform: scale(1); opacity: 1; } }

@media (min-width: 769px) { :root { --max-width: 720px; } }