/* ---------- 苹果高级感：浅色默认，深色自动跟随系统 ---------- */
:root {
  --bg: #f5f5f7;
  --card: #ffffff;
  --line: rgba(0, 0, 0, 0.06);
  --text: #1d1d1f;
  --text-secondary: #6e6e73;
  --text-tertiary: #86868b;
  --accent: #0071e3;
  --accent-soft: rgba(0, 113, 227, 0.14);
  --accent-grad: linear-gradient(135deg, #0071e3, #2997ff);
  --ring-end: #2997ff;
  --done: #34c759;
  --done-grad: linear-gradient(135deg, #34d399, #10b981);
  --done-soft: rgba(52, 199, 89, 0.12);
  --done-shadow: rgba(52, 199, 89, 0.35);
  --danger: #ff3b30;
  --danger-soft: rgba(255, 59, 48, 0.1);
  --ring-track: #e5e5ea;
  --check-border: #d1d1d6;
  --shadow-card: 0 1px 2px rgba(0, 0, 0, 0.04), 0 8px 24px rgba(0, 0, 0, 0.05);
  --shadow-card-hover: 0 2px 4px rgba(0, 0, 0, 0.05), 0 14px 32px rgba(0, 0, 0, 0.08);
  --glass: rgba(255, 255, 255, 0.72);
  --spring: cubic-bezier(0.34, 1.56, 0.64, 1);
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #000000;
    --card: #1c1c1e;
    --line: rgba(255, 255, 255, 0.12);
    --text: #f5f5f7;
    --text-secondary: #98989d;
    --text-tertiary: #6e6e73;
    --accent: #0a84ff;
    --accent-soft: rgba(10, 132, 255, 0.2);
    --accent-grad: linear-gradient(135deg, #0a84ff, #5ac8fa);
    --ring-end: #5ac8fa;
    --done: #30d158;
    --done-grad: linear-gradient(135deg, #30d158, #1f9e4e);
    --done-soft: rgba(48, 209, 88, 0.16);
    --done-shadow: rgba(48, 209, 88, 0.4);
    --danger: #ff453a;
    --danger-soft: rgba(255, 69, 58, 0.16);
    --ring-track: #2c2c2e;
    --check-border: #48484a;
    --shadow-card: 0 1px 2px rgba(0, 0, 0, 0.5), 0 8px 24px rgba(0, 0, 0, 0.4);
    --shadow-card-hover: 0 2px 4px rgba(0, 0, 0, 0.6), 0 14px 32px rgba(0, 0, 0, 0.5);
    --glass: rgba(28, 28, 30, 0.72);
  }
}

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

html,
body {
  min-height: 100%;
}

body {
  font-family: -apple-system, BlinkMacSystemFont, "SF Pro SC", "SF Pro Text",
    "PingFang SC", "Helvetica Neue", "Microsoft YaHei", "Segoe UI", sans-serif;
  color: var(--text);
  background: var(--bg);
  background-attachment: fixed;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

/* 柔和的环境光晕：给毛玻璃提供可透的底色 */
.blob {
  position: fixed;
  border-radius: 50%;
  filter: blur(70px);
  z-index: -1;
  pointer-events: none;
}

.blob-1 {
  width: 540px;
  height: 280px;
  top: -130px;
  left: calc(50% - 270px);
  background: radial-gradient(circle, rgba(0, 113, 227, 0.12), transparent 70%);
}

.blob-2 {
  width: 480px;
  height: 260px;
  top: 30px;
  left: calc(50% - 240px);
  background: radial-gradient(circle, rgba(90, 200, 250, 0.1), transparent 70%);
}

@media (prefers-color-scheme: dark) {
  .blob-1 {
    background: radial-gradient(circle, rgba(10, 132, 255, 0.2), transparent 70%);
  }

  .blob-2 {
    background: radial-gradient(circle, rgba(90, 200, 250, 0.1), transparent 70%);
  }
}

.app {
  max-width: 520px;
  margin: 0 auto;
  padding: 40px 20px 56px;
}

/* ---------- 头部：日期 + 进度环 ---------- */
.header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 28px;
}

.weekday {
  color: var(--accent);
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 0.08em;
  margin-bottom: 8px;
}

.date {
  font-size: 30px;
  font-weight: 600;
  letter-spacing: -0.02em;
}

.progress {
  position: relative;
  width: 92px;
  height: 92px;
  flex-shrink: 0;
}

.ring {
  width: 100%;
  height: 100%;
  transform: rotate(-90deg);
}

.ring stop:first-of-type {
  stop-color: var(--accent);
}

.ring stop:last-of-type {
  stop-color: var(--ring-end);
}

.ring-bg {
  fill: none;
  stroke: var(--ring-track);
  stroke-width: 9;
}

.ring-fg {
  fill: none;
  stroke: url(#ringGradient);
  stroke-width: 9;
  stroke-linecap: round;
  stroke-dasharray: 326.7;
  stroke-dashoffset: 326.7;
  transition: stroke-dashoffset 0.6s ease;
}

/* 全勤时进度环轻轻亮一下 */
.progress.pulse .ring-fg {
  animation: ring-pulse 0.8s ease;
}

@keyframes ring-pulse {
  0% {
    filter: drop-shadow(0 0 0 rgba(0, 113, 227, 0));
  }
  40% {
    filter: drop-shadow(0 0 10px rgba(0, 113, 227, 0.45));
  }
  100% {
    filter: drop-shadow(0 0 0 rgba(0, 113, 227, 0));
  }
}

.ring-text {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: baseline;
  justify-content: center;
  padding-top: 30px;
}

.ring-count {
  font-size: 26px;
  font-weight: 600;
  color: var(--accent);
  font-variant-numeric: tabular-nums;
  letter-spacing: -0.02em;
}

.ring-total {
  font-size: 13px;
  color: var(--text-secondary);
  font-variant-numeric: tabular-nums;
}

/* ---------- 本周完成情况 ---------- */
.week-stats {
  margin-bottom: 20px;
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 18px;
  padding: 18px;
  box-shadow: var(--shadow-card);
}

.week-stats-head {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  margin-bottom: 14px;
}

.week-stats-head h2 {
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 0.04em;
  color: var(--text-secondary);
}

.week-rate {
  font-size: 13px;
  font-weight: 600;
  color: var(--accent);
  font-variant-numeric: tabular-nums;
}

.week-track {
  height: 6px;
  border-radius: 999px;
  background: var(--ring-track);
  overflow: hidden;
  margin-bottom: 16px;
}

.week-fill {
  height: 100%;
  width: 0;
  border-radius: 999px;
  background: var(--accent-grad);
  transition: width 0.6s ease;
}

.week-days {
  display: flex;
  justify-content: center;
  align-items: flex-end;
  gap: 10px;
  margin-bottom: 14px;
}

.week-message {
  font-size: 12px;
  color: var(--text-secondary);
  text-align: center;
}

.day-col.future .day-label {
  color: var(--text-tertiary);
}

.day-bar.future {
  height: 5px;
  background: var(--ring-track);
  opacity: 0.6;
}

.day-bar.full {
  background: var(--done-grad);
  opacity: 1;
}

/* ---------- 添加栏：毛玻璃 ---------- */
.add-bar {
  display: flex;
  align-items: center;
  gap: 10px;
  background: var(--glass);
  -webkit-backdrop-filter: saturate(180%) blur(20px);
  backdrop-filter: saturate(180%) blur(20px);
  border: 1px solid var(--line);
  border-radius: 18px;
  padding: 8px 8px 8px 16px;
  box-shadow: var(--shadow-card);
  margin-bottom: 20px;
  transition: border-color 0.2s ease, box-shadow 0.2s ease;
}

.add-bar:focus-within {
  border-color: var(--accent);
  box-shadow: 0 0 0 4px var(--accent-soft);
}

.add-bar input {
  flex: 1;
  border: none;
  outline: none;
  font-size: 15px;
  font-weight: 400;
  color: var(--text);
  background: transparent;
  min-width: 0;
}

.add-bar input::placeholder {
  color: var(--text-tertiary);
}

.add-bar button {
  width: 42px;
  height: 42px;
  border: none;
  border-radius: 50%;
  background: var(--accent-grad);
  color: #fff;
  font-size: 24px;
  font-weight: 400;
  line-height: 1;
  cursor: pointer;
  transition: transform 0.25s var(--spring), filter 0.2s ease,
    box-shadow 0.25s ease;
  box-shadow: 0 2px 8px rgba(0, 113, 227, 0.35);
}

.add-bar button:hover {
  filter: brightness(1.08);
  transform: translateY(-1px) scale(1.04);
}

.add-bar button:active {
  transform: scale(0.88);
  filter: brightness(0.95);
}

.add-bar button:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
}

/* ---------- 习惯卡片 ---------- */
.habit-list {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.habit-card {
  display: flex;
  align-items: center;
  gap: 14px;
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 18px;
  padding: 14px 16px;
  box-shadow: var(--shadow-card);
  cursor: pointer;
  user-select: none;
  transition: transform 0.22s var(--spring), box-shadow 0.3s ease,
    border-color 0.3s ease;
  animation: card-in 0.4s ease both;
}

.habit-card:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-card-hover);
}

.habit-card:active {
  transform: scale(0.975);
}

.habit-card:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
}

.habit-card.done {
  border-color: rgba(52, 199, 89, 0.3);
  background: linear-gradient(180deg, var(--card), var(--done-soft));
}

.habit-emoji {
  font-size: 26px;
  width: 40px;
  display: grid;
  place-items: center;
  flex-shrink: 0;
}

.habit-info {
  flex: 1;
  min-width: 0;
  display: flex;
  flex-direction: column;
  gap: 7px;
}

.habit-name {
  font-size: 16px;
  font-weight: 500;
  letter-spacing: -0.01em;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  outline: none;
  border-radius: 6px;
}

.habit-name[contenteditable="true"] {
  background: var(--accent-soft);
  outline: 2px solid var(--accent);
  outline-offset: 2px;
  padding: 2px 6px;
  margin-left: -6px;
  white-space: normal;
}

.habit-dots {
  display: flex;
  gap: 5px;
  align-items: center;
}

.habit-dots i {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--check-border);
  display: block;
}

.habit-dots i.on {
  background: var(--done);
}

.check {
  width: 25px;
  height: 25px;
  border-radius: 50%;
  border: 1.5px solid var(--check-border);
  display: grid;
  place-items: center;
  color: transparent;
  font-size: 14px;
  font-weight: 700;
  flex-shrink: 0;
  transition: background 0.2s ease, border-color 0.2s ease,
    box-shadow 0.2s ease;
}

.habit-card.done .check {
  background: var(--done-grad);
  border-color: transparent;
  color: #fff;
  box-shadow: 0 2px 8px var(--done-shadow);
}

/* 打勾瞬间的果冻弹跳：只作用于刚点击的那张卡 */
.habit-card.done.just-checked .check {
  animation: check-pop 0.35s var(--spring);
}

@keyframes check-pop {
  0% {
    transform: scale(0.5);
  }
  60% {
    transform: scale(1.25);
  }
  100% {
    transform: scale(1);
  }
}

.delete {
  border: none;
  background: transparent;
  color: var(--text-tertiary);
  font-size: 18px;
  width: 28px;
  height: 28px;
  border-radius: 50%;
  cursor: pointer;
  flex-shrink: 0;
  transition: all 0.15s ease;
  line-height: 1;
}

.delete:hover {
  color: var(--danger);
  background: var(--danger-soft);
}

.delete:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 1px;
}

.delete.confirming {
  width: auto;
  padding: 0 10px;
  font-size: 13px;
  color: #fff;
  background: var(--danger);
  border-radius: 999px;
  white-space: nowrap;
}

/* 空状态 */
.empty {
  text-align: center;
  color: var(--text-secondary);
  padding: 44px 16px;
  background: var(--card);
  border: 1px dashed var(--line);
  border-radius: 18px;
  box-shadow: var(--shadow-card);
}

.empty .empty-emoji {
  font-size: 38px;
  display: block;
  margin-bottom: 12px;
}

/* ---------- 最近 7 天 ---------- */
.history {
  margin-top: 30px;
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 18px;
  padding: 18px 18px 16px;
  box-shadow: var(--shadow-card);
}

.history h2 {
  font-size: 13px;
  color: var(--text-secondary);
  font-weight: 600;
  letter-spacing: 0.04em;
  margin-bottom: 16px;
}

.history-days {
  display: flex;
  justify-content: center;
  align-items: flex-end;
  gap: 10px;
}

.day-col {
  flex: 0 0 auto;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
}

.day-bar-wrap {
  height: 54px;
  width: 100%;
  display: flex;
  align-items: flex-end;
  justify-content: center;
}

.day-bar {
  width: 14px;
  min-height: 5px;
  border-radius: 999px;
  background: var(--accent-grad);
  opacity: 0.22;
  transition: height 0.5s ease, opacity 0.3s ease;
}

.day-col.today .day-bar {
  opacity: 1;
  box-shadow: 0 3px 10px rgba(0, 113, 227, 0.3);
}

.day-col.today .day-label {
  color: var(--accent);
  font-weight: 600;
}

.day-count {
  font-size: 12px;
  color: var(--text-secondary);
  font-variant-numeric: tabular-nums;
}

.day-label {
  font-size: 13px;
  color: var(--text-secondary);
}

/* ---------- 提示 & 提示条 ---------- */
.hint {
  margin-top: 22px;
  text-align: center;
  font-size: 12px;
  color: var(--text-tertiary);
}

.toast {
  position: fixed;
  left: 50%;
  bottom: 42px;
  transform: translateX(-50%) translateY(16px);
  background: rgba(28, 28, 30, 0.88);
  -webkit-backdrop-filter: blur(20px);
  backdrop-filter: blur(20px);
  color: #fff;
  padding: 10px 20px;
  border-radius: 999px;
  font-size: 14px;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.25s ease, transform 0.4s var(--spring);
  z-index: 10;
  white-space: nowrap;
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.25);
}

.toast.show {
  opacity: 1;
  transform: translateX(-50%) translateY(0);
}

/* ---------- 小彩带 ---------- */
.confetti-piece {
  position: fixed;
  top: -12px;
  width: 9px;
  height: 14px;
  border-radius: 3px;
  z-index: 20;
  pointer-events: none;
  animation: confetti-fall 2.4s ease-in forwards;
}

@keyframes confetti-fall {
  to {
    transform: translateY(110vh) rotate(720deg);
    opacity: 0.2;
  }
}

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

/* 尊重系统"减弱动态效果"设置 */
@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
}

@media (max-width: 420px) {
  .app {
    padding-top: 28px;
  }

  .date {
    font-size: 26px;
  }

  .habit-emoji {
    width: 36px;
    font-size: 24px;
  }
}