/* ============================================================
   拼豆工位管理系统 - 视觉设计系统
   Bead Workshop Table Manager - Design System
   ============================================================ */

/* ==================== 设计令牌 ==================== */
:root {
  /* 背景 */
  --bg: #faf5f0;
  --bg-soft: #f4ece3;
  --bg-deeper: #efe6da;
  --surface: #ffffff;
  --surface-soft: #fefcfa;

  /* 文字 */
  --text: #3d342f;
  --text-sec: #968578;
  --text-ter: #c2b5a8;
  --text-inv: #ffffff;

  /* 边框 */
  --border: #ede2d4;
  --border-strong: #ddd0bd;

  /* 主色 - 珊瑚橙 */
  --primary: #d9684a;
  --primary-light: #fce8e0;
  --primary-dark: #bf553a;
  --primary-glow: rgba(217, 104, 74, 0.15);

  /* 状态色 */
  --idle: #5ba876;
  --idle-bg: #edf7f0;
  --idle-border: #b8dec6;
  --idle-soft: #e4f3e9;
  --idle-glow: rgba(91, 168, 118, 0.12);

  --in-use: #e85d4a;
  --in-use-bg: #fef4f2;
  --in-use-border: #f5b8b0;
  --in-use-soft: #fcebe7;
  --in-use-glow: rgba(232, 93, 74, 0.12);

  --cleaning: #e89a2e;
  --cleaning-bg: #fef7ea;
  --cleaning-border: #f5d49a;
  --cleaning-soft: #fdf2e0;
  --cleaning-glow: rgba(232, 154, 46, 0.12);

  --danger: #e85d4a;
  --danger-dark: #c84a38;

  /* 圆角 */
  --r-xs: 6px;
  --r-sm: 10px;
  --r-md: 14px;
  --r-lg: 18px;
  --r-xl: 24px;
  --r-full: 999px;

  /* 阴影 - 暖色系 */
  --shadow-xs: 0 1px 2px rgba(160, 120, 90, 0.05);
  --shadow-sm: 0 2px 6px rgba(160, 120, 90, 0.06), 0 1px 2px rgba(160, 120, 90, 0.03);
  --shadow-md: 0 4px 14px rgba(160, 120, 90, 0.08), 0 2px 4px rgba(160, 120, 90, 0.04);
  --shadow-lg: 0 10px 28px rgba(160, 120, 90, 0.12), 0 4px 10px rgba(160, 120, 90, 0.06);
  --shadow-xl: 0 20px 48px rgba(60, 45, 40, 0.15), 0 8px 20px rgba(60, 45, 40, 0.08);

  /* 过渡 */
  --ease: cubic-bezier(0.4, 0, 0.2, 1);
  --ease-spring: cubic-bezier(0.34, 1.56, 0.64, 1);
  --ease-smooth: cubic-bezier(0.25, 0.46, 0.45, 0.94);
}

/* ==================== 重置 ==================== */
*,
*::before,
*::after {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
  -webkit-tap-highlight-color: transparent;
}

html {
  -webkit-text-size-adjust: 100%;
  scroll-behavior: smooth;
}

body {
  font-family: "PingFang SC", "Noto Sans SC", "Microsoft YaHei", system-ui, -apple-system, sans-serif;
  background: var(--bg);
  color: var(--text);
  font-size: 15px;
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  min-height: 100vh;

  /* 拼豆点阵纹理 */
  background-image:
    radial-gradient(circle, rgba(217, 104, 74, 0.035) 1.5px, transparent 1.5px),
    radial-gradient(circle, rgba(91, 168, 118, 0.025) 1.5px, transparent 1.5px),
    radial-gradient(circle, rgba(232, 154, 46, 0.02) 1.5px, transparent 1.5px);
  background-size: 32px 32px, 32px 32px, 32px 32px;
  background-position: 0 0, 16px 16px, 8px 24px;
}

/* 滚动条 */
::-webkit-scrollbar {
  width: 6px;
  height: 6px;
}
::-webkit-scrollbar-track {
  background: transparent;
}
::-webkit-scrollbar-thumb {
  background: var(--border-strong);
  border-radius: 3px;
}
::-webkit-scrollbar-thumb:hover {
  background: var(--text-ter);
}

/* 选中文字 */
::selection {
  background: var(--primary-glow);
  color: var(--primary-dark);
}

/* ==================== 顶部栏 ==================== */
.header {
  background: linear-gradient(135deg, var(--surface) 0%, var(--surface-soft) 100%);
  border-bottom: 1px solid var(--border);
  padding: 14px 28px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  position: sticky;
  top: 0;
  z-index: 100;
  box-shadow: 0 1px 8px rgba(160, 120, 90, 0.05);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
}

.header-left {
  display: flex;
  align-items: center;
  gap: 16px;
}

/* 拼豆品牌标识 */
.logo {
  font-size: 19px;
  font-weight: 800;
  letter-spacing: -0.5px;
  color: var(--text);
  display: flex;
  align-items: center;
  gap: 10px;
}

.logo::before {
  content: '';
  display: inline-block;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--primary);
  box-shadow:
    -12px 0 0 var(--idle),
    -6px -6px 0 var(--cleaning),
    -6px 6px 0 #b89ed4;
  margin-left: 12px;
  margin-right: 4px;
  flex-shrink: 0;
}

.header-sub {
  font-size: 10px;
  color: var(--text-ter);
  font-weight: 700;
  letter-spacing: 2px;
  text-transform: uppercase;
}

.clock {
  font-size: 14px;
  color: var(--text-sec);
  font-variant-numeric: tabular-nums;
  font-weight: 600;
  letter-spacing: 0.5px;
  padding: 4px 12px;
  background: var(--bg-soft);
  border-radius: var(--r-sm);
  border: 1px solid var(--border);
}

/* 导航 */
.nav {
  display: flex;
  gap: 2px;
  background: var(--bg-soft);
  padding: 4px;
  border-radius: var(--r-md);
  border: 1px solid var(--border);
}

.nav-btn {
  border: none;
  background: transparent;
  padding: 8px 22px;
  border-radius: var(--r-sm);
  font-size: 14px;
  font-weight: 600;
  color: var(--text-sec);
  cursor: pointer;
  transition: all 0.2s var(--ease);
  font-family: inherit;
  position: relative;
}

.nav-btn:hover {
  color: var(--text);
}

.nav-btn.active {
  background: var(--surface);
  color: var(--primary);
  box-shadow: var(--shadow-xs);
}

/* ==================== 连接状态 ==================== */
.conn-bar {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 5px 28px;
  font-size: 12px;
  color: var(--text-sec);
  background: var(--cleaning-bg);
  border-bottom: 1px solid var(--cleaning-border);
  transition: all 0.3s var(--ease);
  font-weight: 500;
}

.conn-bar.connected {
  background: var(--idle-bg);
  border-bottom-color: var(--idle-border);
}

.conn-bar.disconnected {
  background: var(--in-use-bg);
  border-bottom-color: var(--in-use-border);
}

.conn-dot {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--cleaning);
  animation: conn-pulse 1.5s infinite;
  flex-shrink: 0;
}

.conn-bar.connected .conn-dot {
  background: var(--idle);
  animation: none;
}

.conn-bar.disconnected .conn-dot {
  background: var(--danger);
  animation: conn-pulse 0.8s infinite;
}

@keyframes conn-pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.3; }
}

/* ==================== 视图 ==================== */
.view {
  display: none;
  padding: 24px 28px;
  max-width: 1440px;
  margin: 0 auto;
}

.view.active {
  display: block;
  animation: viewIn 0.35s var(--ease);
}

@keyframes viewIn {
  from { opacity: 0; transform: translateY(6px); }
  to { opacity: 1; transform: translateY(0); }
}

/* ==================== 统计条 ==================== */
.stats-bar {
  display: flex;
  gap: 12px;
  margin-bottom: 24px;
  flex-wrap: wrap;
}

.stat-chip {
  background: var(--surface);
  padding: 14px 20px;
  border-radius: var(--r-md);
  box-shadow: var(--shadow-sm);
  display: flex;
  align-items: center;
  gap: 10px;
  min-width: 120px;
  border: 1px solid var(--border);
  transition: all 0.2s var(--ease);
  position: relative;
  overflow: hidden;
}

.stat-chip::after {
  content: '';
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  width: 3px;
  background: var(--text-ter);
  opacity: 0.5;
}

.stat-chip.idle::after { background: var(--idle); opacity: 1; }
.stat-chip.in-use::after { background: var(--in-use); opacity: 1; }
.stat-chip.cleaning::after { background: var(--cleaning); opacity: 1; }
.stat-chip.rate::after { background: var(--primary); opacity: 1; }

.stat-chip:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}

.stat-chip .label {
  font-size: 11px;
  color: var(--text-sec);
  font-weight: 600;
  letter-spacing: 0.3px;
}

.stat-chip .value {
  font-size: 22px;
  font-weight: 800;
  font-variant-numeric: tabular-nums;
  letter-spacing: -0.5px;
  line-height: 1.1;
  margin-top: 2px;
}

.stat-chip.idle .value { color: var(--idle); }
.stat-chip.in-use .value { color: var(--in-use); }
.stat-chip.cleaning .value { color: var(--cleaning); }
.stat-chip.rate .value { color: var(--primary); }

/* ==================== 桌位网格 ==================== */
.table-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(210px, 1fr));
  gap: 16px;
}

.table-card {
  background: var(--surface);
  border-radius: var(--r-lg);
  box-shadow: var(--shadow-sm);
  padding: 20px;
  cursor: pointer;
  transition: all 0.25s var(--ease);
  border: 2px solid transparent;
  position: relative;
  overflow: hidden;
  user-select: none;
}

.table-card:hover {
  box-shadow: var(--shadow-lg);
  transform: translateY(-3px);
}

.table-card:active {
  transform: translateY(-1px);
  transition-duration: 0.1s;
}

/* 卡片角标 */
.table-card::before {
  content: '';
  position: absolute;
  top: 0;
  right: 0;
  width: 56px;
  height: 56px;
  border-radius: 0 0 0 56px;
  opacity: 0.06;
  transition: opacity 0.25s var(--ease);
  pointer-events: none;
}

.table-card:hover::before {
  opacity: 0.12;
}

/* 卡片底部色带 */
.table-card::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: var(--text-ter);
  opacity: 0.15;
}

/* 状态样式 */
.table-card.idle {
  background: var(--idle-soft);
  border-color: var(--idle-border);
}
.table-card.idle::before { background: var(--idle); }
.table-card.idle::after { background: var(--idle); opacity: 0.4; }

.table-card.in-use {
  background: var(--in-use-soft);
  border-color: var(--in-use-border);
}
.table-card.in-use::before { background: var(--in-use); }
.table-card.in-use::after { background: var(--in-use); opacity: 0.4; }

.table-card.cleaning {
  background: var(--cleaning-soft);
  border-color: var(--cleaning-border);
}
.table-card.cleaning::before { background: var(--cleaning); }
.table-card.cleaning::after { background: var(--cleaning); opacity: 0.4; }

/* 桌位名 */
.table-card .table-name {
  font-size: 17px;
  font-weight: 800;
  margin-bottom: 2px;
  color: var(--text);
  letter-spacing: -0.3px;
}

.table-card .table-seats {
  font-size: 11px;
  color: var(--text-sec);
  margin-bottom: 14px;
  font-weight: 500;
  letter-spacing: 0.2px;
}

/* 状态徽章 */
.table-card .status-badge {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  padding: 4px 12px;
  border-radius: var(--r-full);
  font-size: 11px;
  font-weight: 700;
  margin-bottom: 10px;
  letter-spacing: 0.3px;
}

.table-card .status-badge::before {
  content: '';
  width: 5px;
  height: 5px;
  border-radius: 50%;
  background: currentColor;
}

.table-card.idle .status-badge {
  background: var(--idle);
  color: white;
}

.table-card.in-use .status-badge {
  background: var(--in-use);
  color: white;
}

.table-card.cleaning .status-badge {
  background: var(--cleaning);
  color: white;
}

/* 计时器 */
.table-card .timer {
  font-size: 32px;
  font-weight: 900;
  font-variant-numeric: tabular-nums;
  letter-spacing: -2px;
  line-height: 1;
  color: var(--text);
}

.table-card.in-use .timer {
  color: var(--in-use);
}

.table-card .start-time {
  font-size: 11px;
  color: var(--text-sec);
  margin-top: 6px;
  font-weight: 500;
  letter-spacing: 0.2px;
}

.table-card .hint-text {
  font-size: 13px;
  color: var(--text-sec);
  margin-top: 4px;
  font-weight: 500;
}

/* ==================== 倒计时状态 ==================== */
.timer-normal {
  color: var(--in-use) !important;
}

.timer-warning {
  color: var(--cleaning) !important;
  animation: warn-blink 1s infinite !important;
}

.timer-timeup {
  color: var(--danger) !important;
  animation: timeup-blink 0.6s infinite !important;
}

@keyframes warn-blink {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.55; transform: scale(1.06); }
}

@keyframes timeup-blink {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.2; }
}

.table-card.in-use.warning {
  border-color: var(--cleaning);
  background: var(--cleaning-soft);
  animation: card-warn-pulse 1.5s infinite;
}

.table-card.in-use.warning .timer {
  color: var(--cleaning) !important;
  animation: warn-blink 1s infinite;
}

.table-card.in-use.timeup {
  border-color: var(--danger);
  background: var(--in-use-soft);
  animation: card-timeup-pulse 0.8s infinite;
}

.table-card.in-use.timeup .timer {
  color: var(--danger) !important;
  font-size: 26px;
  animation: timeup-blink 0.6s infinite;
}

.table-card.in-use.timeup .status-badge {
  background: var(--danger);
}

@keyframes card-warn-pulse {
  0%, 100% { box-shadow: 0 0 0 0 var(--cleaning-glow); }
  50% { box-shadow: 0 0 0 6px var(--cleaning-glow); }
}

@keyframes card-timeup-pulse {
  0%, 100% { box-shadow: 0 0 0 0 var(--in-use-glow); }
  50% { box-shadow: 0 0 0 8px var(--in-use-glow); }
}

/* ==================== 统计面板 ==================== */
.stats-panel {
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.stats-date {
  font-size: 13px;
  color: var(--text-sec);
  margin-bottom: 2px;
  font-weight: 700;
  letter-spacing: 0.5px;
  text-transform: uppercase;
  display: flex;
  align-items: center;
  gap: 8px;
}

.stats-date::before {
  content: '';
  width: 4px;
  height: 14px;
  border-radius: 2px;
  background: var(--primary);
}

.stats-cards {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
  gap: 14px;
}

.big-stat-card {
  background: var(--surface);
  border-radius: var(--r-lg);
  box-shadow: var(--shadow-sm);
  padding: 24px;
  border: 1px solid var(--border);
  transition: all 0.25s var(--ease);
  position: relative;
  overflow: hidden;
}

.big-stat-card::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--primary), var(--cleaning));
  opacity: 0.5;
}

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

.big-stat-card .label {
  font-size: 12px;
  color: var(--text-sec);
  margin-bottom: 10px;
  font-weight: 600;
  letter-spacing: 0.3px;
}

.big-stat-card .value {
  font-size: 32px;
  font-weight: 900;
  font-variant-numeric: tabular-nums;
  line-height: 1;
  letter-spacing: -1px;
  color: var(--primary);
}

.big-stat-card .sub {
  font-size: 12px;
  color: var(--text-sec);
  margin-top: 6px;
  font-weight: 500;
}

/* 表格 */
.stats-table {
  background: var(--surface);
  border-radius: var(--r-lg);
  box-shadow: var(--shadow-sm);
  overflow: hidden;
  border: 1px solid var(--border);
}

.stats-table h3 {
  padding: 18px 22px;
  font-size: 15px;
  border-bottom: 1px solid var(--border);
  font-weight: 800;
  letter-spacing: -0.2px;
  display: flex;
  align-items: center;
  gap: 8px;
}

.stats-table h3::before {
  content: '';
  width: 4px;
  height: 16px;
  border-radius: 2px;
  background: var(--primary);
}

.stats-table table {
  width: 100%;
  border-collapse: collapse;
}

.stats-table th {
  text-align: left;
  padding: 10px 22px;
  font-size: 12px;
  color: var(--text-sec);
  font-weight: 600;
  border-bottom: 1px solid var(--border);
  letter-spacing: 0.3px;
  text-transform: uppercase;
}

.stats-table td {
  padding: 14px 22px;
  font-size: 14px;
  border-bottom: 1px solid var(--border);
  font-weight: 500;
}

.stats-table tr:last-child td {
  border-bottom: none;
}

.stats-table tbody tr {
  transition: background 0.15s;
}

.stats-table tbody tr:hover {
  background: var(--bg-soft);
}

.bar-cell {
  display: flex;
  align-items: center;
  gap: 8px;
}

.bar-track {
  flex: 1;
  height: 6px;
  background: var(--bg-deeper);
  border-radius: 3px;
  overflow: hidden;
  min-width: 60px;
}

.bar-fill {
  height: 100%;
  background: linear-gradient(90deg, var(--primary), var(--cleaning));
  border-radius: 3px;
  transition: width 0.5s var(--ease-smooth);
}

/* 时段图 */
.hourly-chart {
  background: var(--surface);
  border-radius: var(--r-lg);
  box-shadow: var(--shadow-sm);
  padding: 24px;
  border: 1px solid var(--border);
}

.hourly-chart h3 {
  font-size: 15px;
  margin-bottom: 18px;
  font-weight: 800;
  display: flex;
  align-items: center;
  gap: 8px;
}

.hourly-chart h3::before {
  content: '';
  width: 4px;
  height: 16px;
  border-radius: 2px;
  background: var(--primary);
}

.hourly-bars {
  display: flex;
  align-items: flex-end;
  gap: 4px;
  height: 130px;
  overflow-x: auto;
  padding-bottom: 4px;
}

.hourly-bar {
  flex: 1;
  min-width: 20px;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 4px;
  justify-content: flex-end;
  height: 100%;
}

.hourly-bar .bar {
  width: 100%;
  background: linear-gradient(180deg, var(--primary), #f0b89a);
  border-radius: 6px 6px 0 0;
  min-height: 3px;
  transition: height 0.5s var(--ease-smooth);
  opacity: 0.55;
}

.hourly-bar .bar.active {
  opacity: 1;
  box-shadow: 0 0 12px var(--primary-glow);
  background: linear-gradient(180deg, var(--primary), var(--cleaning));
}

.hourly-bar .hour-label {
  font-size: 10px;
  color: var(--text-sec);
  font-weight: 600;
}

.hourly-bar .count {
  font-size: 11px;
  font-weight: 700;
  color: var(--text);
}

/* ==================== 设置面板 ==================== */
.settings-panel {
  display: flex;
  flex-direction: column;
  gap: 20px;
  max-width: 640px;
}

.settings-section {
  background: var(--surface);
  border-radius: var(--r-lg);
  box-shadow: var(--shadow-sm);
  padding: 24px;
  border: 1px solid var(--border);
}

.settings-section h2 {
  font-size: 16px;
  margin-bottom: 18px;
  font-weight: 800;
  color: var(--text);
  display: flex;
  align-items: center;
  gap: 8px;
  letter-spacing: -0.2px;
}

.settings-section h2::before {
  content: '';
  width: 4px;
  height: 18px;
  border-radius: 2px;
  background: var(--primary);
}

.table-list {
  display: flex;
  flex-direction: column;
  gap: 8px;
  margin-bottom: 16px;
}

.table-row {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 13px 16px;
  background: var(--bg-soft);
  border-radius: var(--r-sm);
  transition: all 0.2s var(--ease);
  border: 1px solid transparent;
}

.table-row:hover {
  background: var(--primary-light);
  border-color: var(--primary-glow);
}

.table-row .name {
  flex: 1;
  font-weight: 700;
  font-size: 14px;
}

.table-row .seats {
  color: var(--text-sec);
  font-size: 12px;
  font-weight: 500;
}

.table-row .status-tag {
  font-size: 11px;
  padding: 3px 10px;
  border-radius: var(--r-full);
  font-weight: 700;
  letter-spacing: 0.2px;
}

.table-row .status-tag.idle { background: var(--idle-bg); color: var(--idle); }
.table-row .status-tag.in-use { background: var(--in-use-bg); color: var(--in-use); }
.table-row .status-tag.cleaning { background: var(--cleaning-bg); color: var(--cleaning); }

.btn-icon {
  border: none;
  background: transparent;
  color: var(--text-ter);
  cursor: pointer;
  padding: 4px 8px;
  border-radius: var(--r-xs);
  font-size: 18px;
  transition: all 0.15s var(--ease);
  font-weight: 300;
  line-height: 1;
}

.btn-icon:hover {
  background: var(--in-use-bg);
  color: var(--danger);
  transform: scale(1.15);
}

/* 表单 */
.add-form {
  display: flex;
  gap: 8px;
}

.input {
  flex: 1;
  padding: 12px 16px;
  border: 1.5px solid var(--border);
  border-radius: var(--r-sm);
  font-size: 14px;
  outline: none;
  transition: all 0.2s var(--ease);
  background: var(--bg-soft);
  font-family: inherit;
  color: var(--text);
  font-weight: 500;
}

.input::placeholder {
  color: var(--text-ter);
}

.input:focus {
  border-color: var(--primary);
  background: var(--surface);
  box-shadow: 0 0 0 3px var(--primary-glow);
}

.input-seats {
  max-width: 80px;
  text-align: center;
}

/* 按钮 */
.btn {
  border: none;
  padding: 12px 24px;
  border-radius: var(--r-sm);
  font-size: 14px;
  font-weight: 700;
  cursor: pointer;
  transition: all 0.2s var(--ease);
  font-family: inherit;
  letter-spacing: 0.2px;
}

.btn:active {
  transform: translateY(0) !important;
}

.btn-primary {
  background: var(--primary);
  color: white;
  box-shadow: 0 2px 8px var(--primary-glow);
}

.btn-primary:hover {
  background: var(--primary-dark);
  transform: translateY(-1px);
  box-shadow: 0 4px 14px var(--primary-glow);
}

.btn-danger {
  background: var(--danger);
  color: white;
  box-shadow: 0 2px 8px var(--in-use-glow);
}

.btn-danger:hover {
  background: var(--danger-dark);
  transform: translateY(-1px);
}

.btn-cancel {
  background: var(--bg-soft);
  color: var(--text-sec);
  border: 1px solid var(--border);
}

.btn-cancel:hover {
  background: var(--bg-deeper);
  color: var(--text);
}

.hint {
  font-size: 13px;
  color: var(--text-sec);
  margin-bottom: 14px;
  line-height: 1.6;
}

.access-info {
  background: var(--bg-soft);
  border-radius: var(--r-sm);
  padding: 18px;
  font-size: 14px;
  line-height: 1.8;
  border: 1px solid var(--border);
}

.access-info code {
  background: var(--surface);
  padding: 5px 12px;
  border-radius: var(--r-xs);
  font-weight: 700;
  color: var(--primary);
  font-size: 14px;
  border: 1px solid var(--border);
  display: inline-block;
  margin: 2px 0;
}

/* ==================== 弹窗 ==================== */
.modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(60, 45, 40, 0.3);
  backdrop-filter: blur(6px);
  -webkit-backdrop-filter: blur(6px);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 200;
  animation: overlayIn 0.2s var(--ease);
  padding: 20px;
}

@keyframes overlayIn {
  from { opacity: 0; }
  to { opacity: 1; }
}

.modal {
  background: var(--surface);
  border-radius: var(--r-xl);
  padding: 32px;
  max-width: 440px;
  width: 100%;
  box-shadow: var(--shadow-xl);
  animation: modalIn 0.35s var(--ease-spring);
}

@keyframes modalIn {
  from { opacity: 0; transform: scale(0.92) translateY(16px); }
  to { opacity: 1; transform: scale(1) translateY(0); }
}

.modal h3 {
  font-size: 20px;
  margin-bottom: 8px;
  font-weight: 800;
  color: var(--text);
  letter-spacing: -0.3px;
}

.modal p {
  font-size: 14px;
  color: var(--text-sec);
  margin-bottom: 20px;
  line-height: 1.6;
}

.modal-actions {
  display: flex;
  gap: 10px;
  justify-content: flex-end;
}

/* ==================== 时长选择 ==================== */
.duration-quick {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 8px;
  margin-bottom: 14px;
}

.duration-btn {
  border: 2px solid var(--border);
  background: var(--surface);
  padding: 14px 8px;
  border-radius: var(--r-sm);
  font-size: 14px;
  font-weight: 700;
  color: var(--text);
  cursor: pointer;
  transition: all 0.2s var(--ease);
  text-align: center;
  font-family: inherit;
}

.duration-btn:hover {
  border-color: var(--primary);
  color: var(--primary);
  transform: translateY(-2px);
  box-shadow: 0 4px 10px var(--primary-glow);
}

.duration-btn.selected {
  border-color: var(--primary);
  background: var(--primary-light);
  color: var(--primary-dark);
  box-shadow: 0 2px 8px var(--primary-glow);
}

.duration-custom {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 20px;
}

.duration-custom .input {
  flex: 1;
}

.duration-unit {
  font-size: 14px;
  color: var(--text-sec);
  white-space: nowrap;
  font-weight: 600;
}

/* ==================== 使用中弹窗 ==================== */
.in-use-info {
  display: flex;
  gap: 16px;
  margin-bottom: 20px;
  padding: 18px;
  background: var(--bg-soft);
  border-radius: var(--r-md);
  border: 1px solid var(--border);
}

.in-use-info > div {
  flex: 1;
}

.in-use-info .label {
  display: block;
  font-size: 11px;
  color: var(--text-sec);
  margin-bottom: 6px;
  font-weight: 600;
  letter-spacing: 0.3px;
  text-transform: uppercase;
}

.in-use-info .value {
  font-size: 24px;
  font-weight: 800;
  font-variant-numeric: tabular-nums;
  letter-spacing: -0.5px;
}

.in-use-remaining .value {
  color: var(--in-use);
}

.in-use-extend {
  margin-bottom: 20px;
}

.in-use-extend > p {
  font-size: 13px;
  color: var(--text-sec);
  margin-bottom: 10px;
  font-weight: 600;
}

/* ==================== 响应式 ==================== */

/* 平板 */
@media (max-width: 1024px) {
  .view {
    padding: 20px;
  }

  .table-grid {
    grid-template-columns: repeat(auto-fill, minmax(180px, 1fr));
    gap: 14px;
  }

  .stats-cards {
    grid-template-columns: repeat(2, 1fr);
  }
}

/* 手机 */
@media (max-width: 768px) {
  .header {
    padding: 12px 16px;
    flex-wrap: wrap;
    gap: 10px;
  }

  .header-left {
    gap: 12px;
    flex: 1;
  }

  .logo {
    font-size: 16px;
  }

  .header-sub {
    display: none;
  }

  .clock {
    font-size: 12px;
    padding: 3px 10px;
  }

  .nav {
    padding: 3px;
  }

  .nav-btn {
    padding: 6px 16px;
    font-size: 13px;
  }

  .conn-bar {
    padding: 5px 16px;
    font-size: 11px;
  }

  .view {
    padding: 16px;
  }

  .stats-bar {
    gap: 8px;
    margin-bottom: 16px;
  }

  .stat-chip {
    padding: 10px 14px;
    min-width: 100px;
    flex: 1;
  }

  .stat-chip .value {
    font-size: 18px;
  }

  .stat-chip .label {
    font-size: 10px;
  }

  .table-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 12px;
  }

  .table-card {
    padding: 16px;
  }

  .table-card .table-name {
    font-size: 15px;
  }

  .table-card .timer {
    font-size: 26px;
    letter-spacing: -1.5px;
  }

  .table-card .status-badge {
    font-size: 10px;
    padding: 3px 10px;
  }

  .stats-cards {
    grid-template-columns: repeat(2, 1fr);
    gap: 10px;
  }

  .big-stat-card {
    padding: 18px;
  }

  .big-stat-card .value {
    font-size: 26px;
  }

  .stats-table th,
  .stats-table td {
    padding: 10px 14px;
    font-size: 13px;
  }

  .add-form {
    flex-wrap: wrap;
  }

  .input-seats {
    max-width: none;
    flex: 0 0 calc(50% - 4px);
  }

  .modal {
    padding: 24px 20px;
    border-radius: var(--r-lg);
  }

  .modal h3 {
    font-size: 18px;
  }

  .duration-quick {
    grid-template-columns: repeat(3, 1fr);
    gap: 6px;
  }

  .duration-btn {
    padding: 12px 6px;
    font-size: 13px;
  }

  .in-use-info {
    flex-direction: column;
    gap: 12px;
    padding: 14px;
  }

  .in-use-info .value {
    font-size: 20px;
  }
}

/* 小屏手机 */
@media (max-width: 380px) {
  .table-grid {
    grid-template-columns: 1fr;
  }

  .stats-cards {
    grid-template-columns: 1fr;
  }

  .stat-chip {
    min-width: 140px;
  }
}

/* 大屏优化 */
@media (min-width: 1440px) {
  .view {
    padding: 28px 32px;
  }

  .table-grid {
    grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
    gap: 18px;
  }
}

/* 无障碍 - 焦点可见 */
:focus-visible {
  outline: 2px solid var(--primary);
  outline-offset: 2px;
}

/* 减少动画偏好 */
@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
}