/* ===== CSS Variables — Neumorphic Light Theme (Reference-aligned) ===== */
:root {
  /* Backgrounds — all same color: "同色异影" */
  --bg: #E0E5EC;
  --bg-light: #E3E8ED;
  --bg-card: #E0E5EC;
  --nm-bg: #E0E5EC;
  --nm-highlight: #ffffff;
  --nm-shadow: #A3B1C6;
  --nm-bg-card: #E0E5EC;

  /* Accent & functional — colors used ONLY for text/dots, never backgrounds */
  --primary: #0b3289;
  --primary-dark: #053154;
  --primary-light: rgba(11, 50, 137, 0.08);
  --accent: #81cac4;
  --accent-dark: #5eb8b0;
  --accent-warm: #015697;

  /* Text */
  --text: #4A5568;
  --text-secondary: #718096;
  --text-muted: #A0AEC0;

  /* Borders — subtle, for internal section separation only */
  --border: rgba(0, 0, 0, 0.08);
  --border-light: rgba(0, 0, 0, 0.05);

  /* Shadows — neumorphic, aligned to reference image */
  --shadow-light: #FFFFFF;
  --shadow-dark: #A3B1C6;
  --shadow-raised: 8px 8px 16px #A3B1C6, -8px -8px 16px #FFFFFF;
  --shadow-raised-sm: 4px 4px 8px #A3B1C6, -4px -4px 8px #FFFFFF;
  --shadow-inset: inset 6px 6px 12px #A3B1C6, inset -6px -6px 12px #FFFFFF;
  --shadow-inset-sm: inset 3px 3px 6px #A3B1C6, inset -3px -3px 6px #FFFFFF;
  --shadow-pressed: inset 4px 4px 8px #A3B1C6, inset -4px -4px 8px #FFFFFF;
  --shadow-card: 12px 12px 24px #A3B1C6, -12px -12px 24px #FFFFFF;
  --shadow-lg: 12px 12px 24px #A3B1C6, -12px -12px 24px #FFFFFF;

  /* Status colors */
  --status-in: #0b3289;
  --status-leaveSchool: #5b6bb5;
  --status-leaveInside: #d4a017;
  --status-leaveOutside: #81cac4;
  --status-absent: #c44536;

  /* Functional */
  --danger: #c44536;
  --danger-bg: rgba(196, 69, 54, 0.06);
  --danger-border: rgba(196, 69, 54, 0.2);
  --warning: #d4a017;
  --success: #27AE60;
  --purple: #5b6bb5;

  /* Sizing */
  --radius: 12px;
  --radius-sm: 8px;
  --radius-lg: 16px;
  --font: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'PingFang SC', 'Hiragino Sans GB', 'Microsoft YaHei', sans-serif;

  /* Neumorphism v13 — unified variables */
  --neu-bg: #E0E5EC;
  --neu-dark: #B8C4D4;
  --neu-light: #FFFFFF;
  --neu-text: #1A1D3C;
  --neu-text-secondary: #6B7280;
  --neu-transition: all 0.35s cubic-bezier(0.4, 0, 0.2, 1);

  /* Status colors — text/dots only, never backgrounds */
  --status-in: #2563EB;
  --status-out: #7C3AED;
  --status-leave: #D97706;
  --status-away: #059669;
  --status-missing: #DC2626;
}

/* ===== CSS Variables — Neumorphic Dark Theme (Reference-aligned) ===== */
[data-theme="dark"] {
  /* Backgrounds — all same color: "同色异影" */
  --bg: #1A1D3C;
  --bg-light: #1F2245;
  --bg-card: #1A1D3C;
  --nm-bg: #1A1D3C;
  --nm-highlight: rgba(255, 255, 255, 0.06);
  --nm-shadow: rgba(0, 0, 0, 0.6);
  --nm-bg-card: #1A1D3C;

  /* Accent & functional — colors used ONLY for text/dots */
  --primary: #81cac4;
  --primary-dark: #5eb8b0;
  --primary-light: rgba(129, 202, 196, 0.12);
  --accent: #A99563;
  --accent-dark: #8a7a4e;
  --accent-warm: #81cac4;

  /* Text */
  --text: #E8E7E2;
  --text-secondary: #8A9A8C;
  --text-muted: #5A6A5E;

  /* Borders */
  --border: rgba(255, 255, 255, 0.06);
  --border-light: rgba(255, 255, 255, 0.04);

  /* Shadows — neumorphic: dark shadow sinks, light shadow very muted */
  --shadow-light: rgba(255, 255, 255, 0.08);
  --shadow-dark: rgba(0, 0, 0, 0.6);
  --shadow-raised: 8px 8px 16px rgba(0, 0, 0, 0.6), -8px -8px 16px rgba(255, 255, 255, 0.08);
  --shadow-raised-sm: 4px 4px 8px rgba(0, 0, 0, 0.6), -4px -4px 8px rgba(255, 255, 255, 0.08);
  --shadow-inset: inset 6px 6px 12px rgba(0, 0, 0, 0.6), inset -6px -6px 12px rgba(255, 255, 255, 0.08);
  --shadow-inset-sm: inset 3px 3px 6px rgba(0, 0, 0, 0.6), inset -3px -3px 6px rgba(255, 255, 255, 0.08);
  --shadow-pressed: inset 4px 4px 8px rgba(0, 0, 0, 0.6), inset -4px -4px 8px rgba(255, 255, 255, 0.08);
  --shadow-card: 12px 12px 24px rgba(0, 0, 0, 0.6), -12px -12px 24px rgba(255, 255, 255, 0.08);
  --shadow-lg: 12px 12px 24px rgba(0, 0, 0, 0.6), -12px -12px 24px rgba(255, 255, 255, 0.08);

  /* Dark mode status colors */
  --status-in: #81cac4;
  --status-leaveSchool: #a8b5e0;
  --status-leaveInside: #f0c040;
  --status-leaveOutside: #a8e0d8;
  --status-absent: #e07060;

  --danger: #e07060;
  --danger-bg: rgba(224, 112, 96, 0.1);
  --danger-border: rgba(224, 112, 96, 0.25);
  --warning: #f0c040;

  /* Neumorphism v13 — dark mode variables */
  --neu-bg: #1A1D3C;
  --neu-dark: rgba(0, 0, 0, 0.6);
  --neu-light: rgba(255, 255, 255, 0.08);
  --neu-text: #E2E8F0;
  --neu-text-secondary: #94A3B8;
}

/* ===== Global Reset ===== */
*, *::before, *::after {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

body {
  font-family: var(--font);
  background-color: var(--bg);
  font-size: 14px;
  line-height: 1.5;
  color: var(--text);
  letter-spacing: 0.02em;
  touch-action: manipulation;
  -webkit-touch-callout: none;
  overflow-x: hidden;
}

/* ===== Header ===== */
.header {
  background: var(--primary);
  color: white;
  padding: 12px 16px;
  position: sticky;
  top: 0;
  z-index: 100;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.15);
  display: flex;
  align-items: center;
  gap: 12px;
}

.header h1 {
  font-size: 17px;
  font-weight: 600;
  flex: 1;
  letter-spacing: 0.02em;
}

.header-back {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  -webkit-tap-highlight-color: transparent;
  transition: all 0.15s cubic-bezier(0.4, 0, 0.2, 1);
}

.header-back:active {
  transform: scale(0.92);
  background: rgba(255,255,255,0.1);
}

/* Header 按钮 — v16: 毛玻璃半透明（彻底放弃新拟态） */
.header-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  padding: 8px 14px;
  border-radius: 12px;
  background: rgba(255, 255, 255, 0.12);
  border: 1px solid rgba(255, 255, 255, 0.18);
  color: #FFFFFF;
  font-size: 13px;
  font-weight: 500;
  cursor: pointer;
  transition: all 0.2s ease;
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  -webkit-tap-highlight-color: transparent;
  box-shadow: none !important;
  filter: none !important;
  text-shadow: none !important;
  white-space: nowrap;
}
.header-btn:hover {
  background: rgba(255, 255, 255, 0.2);
}
.header-btn:active {
  background: rgba(255, 255, 255, 0.08);
  transform: scale(0.96);
}

/* 月亮图标专用圆形 */
.header-btn.icon-only {
  width: 40px;
  height: 40px;
  padding: 0;
  border-radius: 50%;
}

/* 图标颜色强制白色 */
.header-btn i,
.header-btn svg {
  color: #FFFFFF;
  font-size: 16px;
}

/* ===== Toast ===== */
.toast {
  position: fixed;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  background: var(--primary);
  color: white;
  padding: 14px 28px;
  border-radius: var(--radius);
  font-size: 14px;
  z-index: 3000;
  display: none;
  white-space: nowrap;
  box-shadow: var(--shadow-lg);
}

.toast.show {
  display: block;
  animation: toastIn 0.3s ease;
}

@keyframes toastIn {
  from { opacity: 0; transform: translate(-50%, -40%); }
  to { opacity: 1; transform: translate(-50%, -50%); }
}

.toast.success { background: var(--success); }
.toast.error { background: var(--danger); }
.toast.info { background: var(--primary); }

/* ===== Loading Overlay ===== */
.loading-overlay {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: var(--bg);
  z-index: 9999;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 16px;
  transition: opacity 0.3s ease;
}

.loading-overlay.hidden {
  opacity: 0;
  pointer-events: none;
}

.loading-spinner-large {
  width: 40px;
  height: 40px;
  border: 3px solid var(--border);
  border-top-color: var(--primary);
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
}

@keyframes spin {
  to { transform: rotate(360deg); }
}

.loading-text {
  color: var(--primary);
  font-size: 14px;
}

.loading-error {
  display: none;
  flex-direction: column;
  align-items: center;
  gap: 12px;
  padding: 0 24px;
  text-align: center;
}

.loading-error.show { display: flex; }

.loading-error p {
  color: var(--danger);
  font-size: 14px;
}

.loading-error button {
  background: var(--primary);
  color: white;
  border: none;
  padding: 10px 20px;
  border-radius: 20px;
  font-size: 14px;
  cursor: pointer;
}

/* ===== Bottom Bar ===== */
.bottom-bar {
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  background: var(--neu-bg);
  border-top: none;
  padding: 10px 14px;
  padding-bottom: calc(10px + env(safe-area-inset-bottom, 0px));
  z-index: 100;
  box-shadow: 0 -2px 12px rgba(0,0,0,0.04);
}

.bottom-actions {
  display: flex;
  gap: 10px;
}

.bottom-btn {
  flex: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 4px;
  padding: 10px 6px;
  border-radius: 14px;
  background: var(--neu-bg);
  box-shadow: 10px 10px 20px var(--neu-dark), -10px -10px 20px var(--neu-light);
  border: none;
  color: var(--neu-text);
  font-size: 12px;
  font-weight: 500;
  cursor: pointer;
  transition: var(--neu-transition);
  -webkit-tap-highlight-color: transparent;
}

.bottom-btn .btn-main {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 4px;
}

.bottom-btn .btn-sub {
  font-size: 12px;
  font-weight: 400;
  opacity: 0.9;
}

.bottom-btn i {
  font-size: 18px;
  color: var(--neu-text-secondary);
}

.bottom-btn:active {
  box-shadow: inset 4px 4px 8px var(--neu-dark), inset -4px -4px 8px var(--neu-light);
  transform: scale(0.97);
}

/* ===== Card Base ===== */
.card {
  background: var(--bg-card);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-card);
  border: none;
}

/* ===== Action Buttons v14: 缩小尺寸 + 加强阴影 ===== */
.action-btn {
  flex: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 4px;
  padding: 10px 6px;
  border-radius: 14px;
  border: none;
  font-size: 12px;
  font-weight: 500;
  cursor: pointer;
  background: var(--neu-bg);
  color: var(--neu-text);
  box-shadow: 10px 10px 20px var(--neu-dark), -10px -10px 20px var(--neu-light);
  -webkit-tap-highlight-color: transparent;
  transition: var(--neu-transition);
}

.action-btn i {
  font-size: 18px;
  color: var(--neu-text-secondary);
}

.action-btn:active {
  box-shadow: inset 4px 4px 8px var(--neu-dark), inset -4px -4px 8px var(--neu-light);
  transform: scale(0.97);
}

/* ===== Modal Base ===== */
.modal-btn {
  flex: 1;
  padding: 14px 0;
  border-radius: var(--radius-sm);
  border: none;
  font-size: 15px;
  font-weight: 500;
  cursor: pointer;
  -webkit-tap-highlight-color: transparent;
  transition: all 0.15s cubic-bezier(0.4, 0, 0.2, 1);
}

.modal-btn.primary {
  background: var(--bg);
  color: var(--primary);
  box-shadow: var(--shadow-raised-sm);
}

.modal-btn.primary:active {
  box-shadow: var(--shadow-pressed);
  transform: scale(0.92);
}

.modal-btn.secondary {
  background: var(--bg);
  color: var(--text-secondary);
  box-shadow: var(--shadow-raised-sm);
}

.modal-btn.secondary:active {
  box-shadow: var(--shadow-pressed);
  transform: scale(0.92);
}

/* ===== Empty State ===== */
.empty-state {
  text-align: center;
  padding: 60px 20px;
  color: var(--text-secondary);
}

.empty-state i {
  font-size: 48px;
  margin-bottom: 16px;
  color: var(--border);
}

/* ===== Mobile Touch Optimization ===== */
button,
.action-btn,
.status-tag,
.floor-tab,
.filter-btn,
.checkbox,
.person-checkbox,
.dorm-nav-btn,
.modal-btn,
.copy-name-btn,
[onclick] {
  touch-action: manipulation;
  cursor: pointer;
  user-select: none;
  -webkit-tap-highlight-color: transparent;
}

/* ===== Fade In Animation ===== */
@keyframes fadeIn {
  from { opacity: 0; transform: translateY(10px); }
  to { opacity: 1; transform: translateY(0); }
}

/* ===== Status Tags — v15: 选中态彩色填充+白字 ===== */
.status-tag {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  padding: 4px 12px;
  border-radius: 20px;
  font-size: 12px;
  font-weight: 500;
  border: none;
  background: transparent;
  color: var(--neu-text-secondary);
  white-space: nowrap;
  box-shadow: inset 1px 1px 2px rgba(163,177,198,0.3), inset -1px -1px 2px rgba(255,255,255,0.5);
  transition: all 0.25s ease;
  cursor: pointer;
}

.status-tag::before {
  content: '';
  width: 8px;
  height: 8px;
  border-radius: 50%;
  opacity: 0.4;
  flex-shrink: 0;
}

/* Unselected dot colors */
.status-tag.in::before           { background: #2563EB; }
.status-tag.leaveSchool::before   { background: #7C3AED; }
.status-tag.leaveInside::before   { background: #D97706; }
.status-tag.leaveOutside::before  { background: #059669; }
.status-tag.absent::before        { background: #DC2626; }

/* Active: solid fill + white text */
.status-tag.active {
  color: #FFFFFF;
  font-weight: 600;
  box-shadow: 3px 3px 6px rgba(0,0,0,0.15);
  transform: scale(1.02);
}
.status-tag.active::before {
  background: #FFFFFF !important;
  opacity: 1;
}

.status-tag.in.active           { background: #2563EB; }
.status-tag.leaveSchool.active  { background: #7C3AED; }
.status-tag.leaveInside.active  { background: #D97706; }
.status-tag.leaveOutside.active { background: #059669; }
.status-tag.absent.active       { background: #DC2626; }

/* Dark theme active: keep solid fill */
[data-theme="dark"] .status-tag.active {
  color: #FFFFFF;
}

/* ===== Dark Theme — Component Overrides ===== */

[data-theme="dark"] body {
  background: var(--bg);
  color: var(--text);
}

[data-theme="dark"] .header {
  background: #141732;
}

[data-theme="dark"] .search-section {
  background: var(--neu-bg);
  border-color: var(--border);
}

[data-theme="dark"] .search-box input {
  background: var(--neu-bg);
  color: var(--neu-text);
  border-color: transparent;
  box-shadow: inset 6px 6px 12px var(--neu-dark), inset -6px -6px 12px var(--neu-light);
}

[data-theme="dark"] .search-box input:focus {
  box-shadow: inset 8px 8px 16px var(--neu-dark), inset -8px -8px 16px var(--neu-light);
}

[data-theme="dark"] .search-box input::placeholder {
  color: var(--neu-text-secondary);
}

[data-theme="dark"] .bottom-bar {
  background: var(--neu-bg);
  border-color: transparent;
}

[data-theme="dark"] .card,
[data-theme="dark"] .dorm-card,
[data-theme="dark"] .modal-container,
[data-theme="dark"] .reason-panel {
  background: var(--neu-bg);
  border-color: var(--border);
}

[data-theme="dark"] .modal-btn.secondary {
  background: var(--bg);
  color: var(--text-secondary);
}

[data-theme="dark"] .modal-btn.primary {
  background: var(--bg);
  color: var(--primary);
}

[data-theme="dark"] .modal-header { border-color: var(--border); }
[data-theme="dark"] .modal-footer { border-color: var(--border); }

[data-theme="dark"] .student-item { border-color: var(--border); }
[data-theme="dark"] .student-info { color: var(--neu-text); }
[data-theme="dark"] .student-name { color: var(--neu-text); }
[data-theme="dark"] .student-meta { color: var(--neu-text-secondary); }

[data-theme="dark"] .room-member-tag {
  background: var(--bg-light);
  color: var(--text-secondary);
  border-color: var(--border);
}

[data-theme="dark"] .room-msg { border-color: var(--border); }
[data-theme="dark"] .room-log-item { border-color: var(--border); color: var(--text-muted); }
[data-theme="dark"] .room-chat-empty,
[data-theme="dark"] .room-log-empty { color: var(--text-muted); }

[data-theme="dark"] .drawer,
[data-theme="dark"] .chat-drawer {
  background: var(--bg-card);
  border-color: var(--border);
}

[data-theme="dark"] .drawer-header {
  background: var(--bg-light);
  border-color: var(--border);
}

[data-theme="dark"] .drawer-tab { color: var(--text-secondary); }
[data-theme="dark"] .drawer-tab.active {
  color: var(--primary);
  border-color: var(--primary);
}

[data-theme="dark"] #roomMessageInput {
  background: var(--bg-light);
  color: var(--text);
  border-color: var(--border);
  box-shadow: var(--shadow-inset);
}

[data-theme="dark"] .reason-item { color: var(--text); }
[data-theme="dark"] .reason-item:active { background: var(--bg-light); }
[data-theme="dark"] .reason-header { color: var(--text-secondary); }
[data-theme="dark"] .toggle-label { color: var(--neu-text-secondary); }

[data-theme="dark"] .copy-name-btn { color: var(--text-muted); }
[data-theme="dark"] .copy-name-btn:active { background: var(--bg-light); }

[data-theme="dark"] .empty-state i { color: var(--border); }
[data-theme="dark"] .empty-state { color: var(--text-muted); }

[data-theme="dark"] .dorm-nav-current {
  color: var(--text);
}
[data-theme="dark"] .dorm-nav-current:active { background: var(--border); }

[data-theme="dark"] .dorm-nav-btn:disabled {
  box-shadow: none;
  color: var(--text-muted);
  background: var(--bg-card);
}

[data-theme="dark"] .sub-reason-list {
  background: var(--bg-light) !important;
}

[data-theme="dark"] .reason-item[style*="color:#666"],
[data-theme="dark"] .reason-item[style*="color:#999"] {
  color: var(--text-muted) !important;
}

[data-theme="dark"] .reason-item[style*="border-top"] {
  border-color: var(--border) !important;
}

[data-theme="dark"] .bottom-stats { color: var(--neu-text-secondary); }
[data-theme="dark"] .status-bar { background: var(--neu-bg); border-color: var(--border); }
[data-theme="dark"] .filter-bar { background: var(--neu-bg); border-color: transparent; }
[data-theme="dark"] .neu-tabs { background: var(--neu-bg); }

/* ===== Dark Theme — Login Page (v17.5: 统一新拟态) ===== */
[data-theme="dark"] .login-card {
  background: var(--neu-bg);
  box-shadow: 12px 12px 24px var(--neu-dark), -12px -12px 24px var(--neu-light);
}

[data-theme="dark"] .login-icon {
  background: var(--neu-bg);
  color: var(--neu-text);
  box-shadow: 8px 8px 16px var(--neu-dark), -8px -8px 16px var(--neu-light);
}

[data-theme="dark"] .login-title { color: var(--neu-text); }
[data-theme="dark"] .login-subtitle { color: var(--neu-text-secondary); }
[data-theme="dark"] .input-label { color: var(--neu-text-secondary); }

[data-theme="dark"] .input-field {
  background: var(--neu-bg);
  color: var(--neu-text);
  border: none;
  box-shadow: inset 6px 6px 12px var(--neu-dark), inset -6px -6px 12px var(--neu-light);
}

[data-theme="dark"] .input-field:focus {
  box-shadow: inset 8px 8px 16px var(--neu-dark), inset -8px -8px 16px var(--neu-light);
}

[data-theme="dark"] .input-field::placeholder { color: var(--neu-text-secondary); }

[data-theme="dark"] .login-btn {
  background: var(--neu-bg);
  color: var(--neu-text);
  box-shadow: 8px 8px 16px var(--neu-dark), -8px -8px 16px var(--neu-light);
}

[data-theme="dark"] .login-btn:active {
  box-shadow: inset 4px 4px 8px var(--neu-dark), inset -4px -4px 8px var(--neu-light);
}

[data-theme="dark"] .switch-mode { color: var(--neu-text-secondary); }
[data-theme="dark"] .switch-mode a { color: var(--neu-text); }

/* ===== Dark Theme — Upload Page ===== */
[data-theme="dark"] .info-banner {
  background: rgba(129, 202, 196, 0.08);
  border-color: rgba(129, 202, 196, 0.15);
}

[data-theme="dark"] .info-banner .title { color: var(--primary); }
[data-theme="dark"] .info-banner .content { color: var(--text); }
[data-theme="dark"] .info-banner .content .highlight { color: var(--primary); }

[data-theme="dark"] .handwritten-warning {
  background: rgba(240, 192, 64, 0.1);
  color: var(--warning);
}

[data-theme="dark"] .upload-area {
  background: var(--bg-card);
  border-color: var(--border);
  box-shadow: var(--shadow-card);
}

[data-theme="dark"] .upload-area:hover {
  border-color: var(--primary);
  background: var(--bg-light);
}

[data-theme="dark"] .upload-area.drag-over {
  border-color: var(--primary);
  background: rgba(129, 202, 196, 0.06);
}

[data-theme="dark"] .upload-area i { color: var(--text-muted); }
[data-theme="dark"] .upload-area p { color: var(--text-secondary); }
[data-theme="dark"] .upload-area .hint { color: var(--text-muted); }

[data-theme="dark"] .upload-area.image-upload {
  background: var(--bg-card);
  border-color: var(--primary);
}
[data-theme="dark"] .upload-area.image-upload i { color: var(--primary); }

[data-theme="dark"] .image-card { background: var(--bg-light); }
[data-theme="dark"] .doc-card { background: var(--bg-card); }
[data-theme="dark"] .doc-name { color: var(--text); }
[data-theme="dark"] .doc-size { color: var(--text-muted); }

[data-theme="dark"] .doc-remove {
  background: var(--bg-light);
  color: var(--text-muted);
}

[data-theme="dark"] .doc-empty-state { color: var(--text-muted); }
[data-theme="dark"] .doc-empty-state i { color: var(--border); }

[data-theme="dark"] .ocr-loading-overlay {
  background: rgba(26, 29, 60, 0.92);
}

[data-theme="dark"] .loading-carousel-text { color: var(--text-secondary); }

[data-theme="dark"] .bottom-actions {
  background: var(--bg-card);
  border-color: var(--border);
}

/* ===== Dark Theme — Manual Upload Page ===== */
[data-theme="dark"] .tip-banner {
  background: rgba(129, 202, 196, 0.08);
  border-color: rgba(129, 202, 196, 0.2);
}

[data-theme="dark"] .tip-banner .content { color: var(--text); }
[data-theme="dark"] .tip-banner .content .highlight { color: var(--primary); }
[data-theme="dark"] .tip-banner .copy-btn { background: var(--primary); color: #1A1D3C; box-shadow: var(--shadow-raised-sm); }
[data-theme="dark"] .tip-banner .copy-btn:active { box-shadow: var(--shadow-pressed); }

[data-theme="dark"] .format-guide {
  background: var(--bg-card);
  box-shadow: var(--shadow-card);
  border-color: var(--border);
}

[data-theme="dark"] .format-guide .title { color: var(--text); }
[data-theme="dark"] .format-guide .title i { color: var(--primary); }
[data-theme="dark"] .format-guide .desc {
  color: var(--text-secondary);
  background: var(--bg-light);
}

[data-theme="dark"] .input-section {
  background: var(--bg-card);
  box-shadow: var(--shadow-card);
  border-color: var(--border);
}

[data-theme="dark"] .input-section .label { color: var(--text); }

[data-theme="dark"] .input-section textarea {
  background: var(--bg);
  color: var(--text);
  border-color: var(--border);
  box-shadow: var(--shadow-inset);
}

[data-theme="dark"] .input-section textarea:focus {
  border-color: var(--primary);
  box-shadow: var(--shadow-inset), 0 0 0 2px rgba(129, 202, 196, 0.3);
}

[data-theme="dark"] .input-section .parse-btn { background: var(--primary); color: #1A1D3C; box-shadow: var(--shadow-raised-sm); }
[data-theme="dark"] .input-section .parse-btn:active { box-shadow: var(--shadow-pressed); }

[data-theme="dark"] .preview-section {
  background: var(--bg-card);
  box-shadow: var(--shadow-card);
  border-color: var(--border);
}

[data-theme="dark"] .preview-header {
  background: var(--bg-light);
  border-color: var(--border);
}

[data-theme="dark"] .preview-header .title { color: var(--text); }
[data-theme="dark"] .preview-header .title i { color: var(--primary); }

[data-theme="dark"] .preview-step .step-title { color: var(--text-secondary); }
[data-theme="dark"] .preview-step .step-content {
  background: var(--bg-light);
  color: var(--text);
}

[data-theme="dark"] .preview-step .step-content.cleaned {
  background: rgba(129, 202, 196, 0.08);
  color: var(--text);
}

[data-theme="dark"] .result-header {
  background: var(--bg-card);
  border-color: var(--border);
  box-shadow: var(--shadow-card);
}

[data-theme="dark"] .result-header .title { color: var(--text); }
[data-theme="dark"] .result-header .count { color: var(--primary); }

[data-theme="dark"] .group-card {
  background: var(--bg-card);
  box-shadow: var(--shadow-card);
  border-color: var(--border);
}

[data-theme="dark"] .group-header {
  background: var(--bg-light);
  border-color: var(--border);
}

[data-theme="dark"] .group-header:active { background: var(--border); }

[data-theme="dark"] .group-header .group-name { color: var(--text); }
[data-theme="dark"] .group-header .group-name i { color: var(--text-muted); }
[data-theme="dark"] .group-header .group-count { color: var(--text-secondary); }

[data-theme="dark"] .type-section .label { color: var(--text-secondary); }

[data-theme="dark"] .type-option {
  border-color: var(--border);
  color: var(--text-secondary);
}

[data-theme="dark"] .type-option:hover { border-color: var(--primary); }
[data-theme="dark"] .type-option.selected {
  border-color: var(--primary);
  background: rgba(129, 202, 196, 0.12);
  color: var(--primary);
}

[data-theme="dark"] .reason-section .label { color: var(--text-secondary); }

[data-theme="dark"] .reason-option {
  border-color: var(--border);
  color: var(--text-secondary);
}

[data-theme="dark"] .reason-option:hover { border-color: var(--primary); }
[data-theme="dark"] .reason-option.selected {
  border-color: var(--primary);
  background: rgba(129, 202, 196, 0.12);
  color: var(--primary);
}

[data-theme="dark"] .reason-option.has-children {
  background: rgba(129, 202, 196, 0.08);
  border-color: var(--primary);
  color: var(--text);
}

[data-theme="dark"] .reason-option.has-children.selected {
  background: var(--primary);
  color: #1A1D3C;
  border-color: var(--primary);
}

[data-theme="dark"] .reason-other-input {
  background: var(--bg);
  color: var(--text);
  border-color: var(--border);
  box-shadow: var(--shadow-inset);
}

[data-theme="dark"] .reason-other-input:focus {
  border-color: var(--primary);
  box-shadow: var(--shadow-inset), 0 0 0 2px rgba(129, 202, 196, 0.3);
}

[data-theme="dark"] .people-list { border-color: var(--border); }
[data-theme="dark"] .people-list .label { color: var(--text-secondary); }

[data-theme="dark"] .person-item { border-color: var(--border); }
[data-theme="dark"] .person-item:active { background: var(--bg-light); }

[data-theme="dark"] .person-item.fuzzy-match {
  background: rgba(129, 202, 196, 0.08);
}

[data-theme="dark"] .person-name { color: var(--text); }
[data-theme="dark"] .person-location { color: var(--text-muted); }

[data-theme="dark"] .person-checkbox { border-color: var(--border); }
[data-theme="dark"] .person-checkbox.checked {
  background: var(--primary);
  border-color: var(--primary);
}

[data-theme="dark"] .report-preview {
  background: var(--bg-card);
  box-shadow: var(--shadow-card);
  border-color: var(--border);
}

[data-theme="dark"] .report-preview .title { color: var(--text); }

[data-theme="dark"] .report-preview .report-content {
  background: var(--bg-light);
  color: var(--text);
}

[data-theme="dark"] .date-range-display {
  background: rgba(129, 202, 196, 0.08);
  color: var(--text);
}

[data-theme="dark"] .date-range-display .highlight { color: var(--primary); }

[data-theme="dark"] .highlight-name {
  color: var(--primary);
  background: rgba(129, 202, 196, 0.15);
}

[data-theme="dark"] .highlight-reason { color: var(--primary); }

[data-theme="dark"] .copyable:hover { background: var(--bg-light); }
[data-theme="dark"] .copyable::after { color: var(--text-muted); }

/* ===== Dark Theme — Room / Chat extras ===== */
/* v17.5: 模式选择 Modal 统一新拟态 */
[data-theme="dark"] .mode-card {
  background: var(--neu-bg);
  color: var(--neu-text);
  box-shadow: 16px 16px 32px var(--neu-dark), -16px -16px 32px var(--neu-light);
}

[data-theme="dark"] .mode-subtitle { color: var(--neu-text-secondary); }

[data-theme="dark"] .room-lobby {
  background: var(--bg-card);
}

[data-theme="dark"] .room-lobby-section h3 { color: var(--text); }

[data-theme="dark"] .room-code-input {
  background: var(--bg);
  color: var(--text);
  border-color: var(--border);
  box-shadow: var(--shadow-inset);
}

[data-theme="dark"] .room-lobby-btn {
  background: var(--bg);
  color: var(--primary);
  box-shadow: var(--shadow-raised-sm);
}

[data-theme="dark"] .room-lobby-btn.secondary {
  background: var(--bg);
  color: var(--text-secondary);
}

[data-theme="dark"] .room-members-bar { background: var(--bg-card); border-color: var(--border); }
[data-theme="dark"] .floating-chat-btn { background: var(--bg); color: var(--primary); box-shadow: var(--shadow-raised-sm); }

[data-theme="dark"] .chat-input-bar { background: var(--bg-card); border-color: var(--border); }
[data-theme="dark"] .chat-send-btn { background: var(--bg); color: var(--primary); box-shadow: var(--shadow-raised-sm); }

[data-theme="dark"] .search-result-info {
  background: var(--bg-light);
  color: var(--text);
  border-color: var(--border);
}

[data-theme="dark"] .search-highlight {
  background: rgba(129, 202, 196, 0.3);
  color: var(--text);
}

/* Dark mode dorm header */
[data-theme="dark"] .dorm-header {
  background: var(--neu-bg);
  box-shadow: 8px 8px 16px var(--neu-dark), -8px -8px 16px var(--neu-light);
}

/* ===== Neumorphic focus ring ===== */
.search-box input:focus,
.input-field:focus,
textarea:focus {
  outline: none;
}

/* ===== Fix: no white cards in dark mode ===== */
[data-theme="dark"] .mode-card,
[data-theme="dark"] .room-lobby,
[data-theme="dark"] .room-lobby-section,
[data-theme="dark"] .chat-drawer,
[data-theme="dark"] .drawer {
  background: var(--neu-bg);
}

/* v17.5: 模式选择按钮统一新拟态 */
[data-theme="dark"] .mode-btn {
  background: var(--neu-bg);
  border: none;
  color: var(--neu-text);
  box-shadow: 10px 10px 20px var(--neu-dark), -10px -10px 20px var(--neu-light);
}

[data-theme="dark"] .mode-btn.primary {
  background: var(--neu-bg);
  color: var(--neu-text);
  border: none;
  box-shadow: 10px 10px 20px var(--neu-dark), -10px -10px 20px var(--neu-light);
}
[data-theme="dark"] .mode-btn.primary:active {
  box-shadow: inset 5px 5px 10px var(--neu-dark), inset -5px -5px 10px var(--neu-light);
}

[data-theme="dark"] .drawer-handle {
  background: var(--border);
}

[data-theme="dark"] .drawer-close {
  background: var(--bg-light);
  color: var(--text-muted);
}

[data-theme="dark"] .chat-input {
  background: var(--bg);
  color: var(--text);
  border-color: var(--border);
}

[data-theme="dark"] .room-code-input:focus {
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(129, 202, 196, 0.15);
}

[data-theme="dark"] .room-msg-user {
  color: var(--primary);
}

[data-theme="dark"] .room-msg-time {
  color: var(--text-muted);
}

/* Remove white/gold references in room member tags */
[data-theme="dark"] .room-member-tag.creator {
  background: var(--primary);
  color: #1A1D3C;
}

/* Dark mode — fuzzy match gold border to primary */
[data-theme="dark"] .person-item.fuzzy-match {
  border-left-color: var(--primary);
}

[data-theme="dark"] .person-item.fuzzy-match::after {
  color: var(--primary);
  background: rgba(129, 202, 196, 0.12);
  border-color: rgba(129, 202, 196, 0.3);
}

[data-theme="dark"] .fuzzy-warning {
  color: var(--primary);
}

[data-theme="dark"] .doc-icon.pdf { background: rgba(255, 77, 79, 0.15); }
[data-theme="dark"] .doc-icon.word { background: rgba(22, 119, 255, 0.15); }
[data-theme="dark"] .doc-icon.excel { background: rgba(82, 196, 26, 0.15); }
[data-theme="dark"] .doc-icon.txt { background: var(--bg-light); }

/* ============================================================
   新拟态全局基础类 — v13
   ============================================================ */

/* ===== 凸起（默认态：卡片、按钮）— v14: 加强阴影 ===== */
.neu-raised {
  background: var(--neu-bg);
  box-shadow: 10px 10px 20px var(--neu-dark), -10px -10px 20px var(--neu-light);
  transition: var(--neu-transition);
  border: none;
  outline: none;
  -webkit-tap-highlight-color: transparent;
}
.neu-raised:active {
  box-shadow: inset 5px 5px 10px var(--neu-dark), inset -5px -5px 10px var(--neu-light);
  transform: scale(0.98);
}

/* 大卡片专用（宿舍卡片、报告卡片）— v14: 加强阴影 + overflow 修复尖角 */
.neu-card {
  background: var(--neu-bg);
  border-radius: 20px;
  padding: 20px;
  box-shadow: 16px 16px 32px var(--neu-dark), -16px -16px 32px var(--neu-light);
  transition: var(--neu-transition);
  overflow: hidden;
}

/* v14: 卡片层次链 — 外层 > Header > 导航箭头 */
.neu-card .card-header {
  box-shadow: 6px 6px 12px var(--neu-dark), -6px -6px 12px var(--neu-light);
}
.neu-card .card-header .nav-arrow {
  box-shadow: 4px 4px 8px var(--neu-dark), -4px -4px 8px var(--neu-light);
}

/* 小按钮/图标按钮（导航箭头、复制按钮）— v14: 加强阴影 */
.neu-btn-icon {
  width: 44px;
  height: 44px;
  border-radius: 50%;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background: var(--neu-bg);
  box-shadow: 8px 8px 16px var(--neu-dark), -8px -8px 16px var(--neu-light);
  transition: var(--neu-transition);
  border: none;
  outline: none;
  color: var(--neu-text);
  cursor: pointer;
}
.neu-btn-icon:active {
  box-shadow: inset 3px 3px 6px var(--neu-dark), inset -3px -3px 6px var(--neu-light);
  transform: scale(0.95);
}

/* ===== 凹陷（搜索框、Tabs 容器、Toggle 轨道） ===== */
.neu-sunken {
  background: var(--neu-bg);
  box-shadow: inset 6px 6px 12px var(--neu-dark), inset -6px -6px 12px var(--neu-light);
  border: none;
  outline: none;
}

/* ===== Tabs / Segmented Control — v16: 强制文字居中 + 滑块精确定位 ===== */
.neu-tabs {
  position: relative;
  display: flex;
  background: var(--neu-bg);
  border-radius: 16px;
  padding: 5px;
  box-shadow: inset 5px 5px 10px var(--neu-dark), inset -5px -5px 10px var(--neu-light);
  justify-content: space-between;
}
.tab-thumb {
  position: absolute;
  top: 5px;
  bottom: 5px;
  left: 5px;
  background: var(--neu-bg);
  border-radius: 12px;
  box-shadow: 5px 5px 10px var(--neu-dark), -5px -5px 10px var(--neu-light);
  transition: all 0.35s cubic-bezier(0.4, 0, 0.2, 1);
  z-index: 0;
  pointer-events: none;
  /* width 由 JS 动态控制，不设置固定值 */
}
.neu-tab {
  flex: 1;
  padding: 10px 0;
  border-radius: 12px;
  border: none;
  background: transparent;
  color: var(--neu-text-secondary);
  font-weight: 500;
  font-size: 14px;
  cursor: pointer;
  transition: color 0.35s ease;
  text-align: center;
  position: relative;
  z-index: 1;
  -webkit-tap-highlight-color: transparent;
  display: flex;
  align-items: center;
  justify-content: center;
  min-width: 0;
}
.neu-tab.active {
  color: var(--neu-text);
  font-weight: 600;
  background: transparent;
  box-shadow: none;
}
.neu-tab:active:not(.active) {
  transform: scale(0.96);
}

/* ===== Toggle 开关 ===== */
.neu-toggle-wrap {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  cursor: pointer;
  -webkit-tap-highlight-color: transparent;
}
.neu-toggle {
  position: relative;
  width: 52px;
  height: 30px;
  appearance: none;
  -webkit-appearance: none;
  background: var(--neu-bg);
  border-radius: 15px;
  box-shadow: inset 4px 4px 8px var(--neu-dark), inset -4px -4px 8px var(--neu-light);
  cursor: pointer;
  outline: none;
  transition: var(--neu-transition);
  flex-shrink: 0;
}
.neu-toggle::after {
  content: '';
  position: absolute;
  top: 3px;
  left: 3px;
  width: 24px;
  height: 24px;
  border-radius: 50%;
  background: var(--neu-bg);
  box-shadow: 3px 3px 6px var(--neu-dark), -3px -3px 6px var(--neu-light);
  transition: var(--neu-transition);
}
.neu-toggle:checked::after {
  transform: translateX(22px);
}
.neu-toggle:checked {
  box-shadow: inset 4px 4px 8px var(--neu-dark), inset -4px -4px 8px var(--neu-light);
}

/* ===== 搜索框 — v15: 加强凹陷 ===== */
.neu-input {
  width: 100%;
  padding: 14px 18px 14px 44px;
  border-radius: 16px;
  background: var(--neu-bg);
  box-shadow: inset 8px 8px 16px var(--neu-dark), inset -8px -8px 16px var(--neu-light);
  border: none;
  color: var(--neu-text);
  font-size: 15px;
  transition: var(--neu-transition);
  outline: none;
}
.neu-input::placeholder {
  color: var(--neu-text-secondary);
}
.neu-input:focus {
  box-shadow: inset 8px 8px 16px var(--neu-dark), inset -8px -8px 16px var(--neu-light);
}

/* ===== 状态胶囊标签（学生状态：在寝/离校/事假/外出） ===== */
.neu-pills {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}
.neu-pill {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 7px 16px;
  border-radius: 20px;
  background: transparent;
  border: none;
  color: var(--neu-text-secondary);
  font-size: 13px;
  cursor: pointer;
  transition: var(--neu-transition);
  -webkit-tap-highlight-color: transparent;
}
.neu-pill:hover {
  box-shadow: 4px 4px 8px var(--neu-dark), -4px -4px 8px var(--neu-light);
}
.neu-pill:active {
  transform: scale(0.96);
}
.neu-pill.active {
  background: var(--neu-bg);
  box-shadow: 4px 4px 8px var(--neu-dark), -4px -4px 8px var(--neu-light);
  font-weight: 600;
}
.neu-pill .dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--neu-text-secondary);
  opacity: 0.5;
  transition: var(--neu-transition);
}
.neu-pill.active .dot {
  opacity: 1;
}

/* 各状态颜色（仅文字和圆点） */
.neu-pill.active[data-status="in"]     { color: var(--status-in); }
.neu-pill.active[data-status="in"] .dot     { background: var(--status-in); }
.neu-pill.active[data-status="out"]    { color: var(--status-out); }
.neu-pill.active[data-status="out"] .dot    { background: var(--status-out); }
.neu-pill.active[data-status="leave"]  { color: var(--status-leave); }
.neu-pill.active[data-status="leave"] .dot  { background: var(--status-leave); }
.neu-pill.active[data-status="away"]   { color: var(--status-away); }
.neu-pill.active[data-status="away"] .dot   { background: var(--status-away); }
.neu-pill.active[data-status="missing"]{ color: var(--status-missing); }
.neu-pill.active[data-status="missing"] .dot{ background: var(--status-missing); }

/* ===== 底部固定操作栏按钮 — v15: 进一步缩小 ===== */
.neu-bottom-btn {
  flex: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 4px;
  padding: 8px 6px;
  border-radius: 12px;
  background: var(--neu-bg);
  box-shadow: 6px 6px 12px var(--neu-dark), -6px -6px 12px var(--neu-light);
  border: none;
  color: var(--neu-text);
  font-size: 11px;
  font-weight: 500;
  cursor: pointer;
  transition: var(--neu-transition);
  -webkit-tap-highlight-color: transparent;
}
.neu-bottom-btn:active {
  box-shadow: inset 4px 4px 8px var(--neu-dark), inset -4px -4px 8px var(--neu-light);
  transform: scale(0.97);
}
.neu-bottom-btn i {
  font-size: 16px;
  color: var(--neu-text-secondary);
}

/* ===== 报告页专用 ===== */
.neu-btn-sm {
  padding: 6px 14px;
  border-radius: 10px;
  background: var(--neu-bg);
  box-shadow: 5px 5px 10px var(--neu-dark), -5px -5px 10px var(--neu-light);
  border: none;
  color: var(--neu-text-secondary);
  font-size: 13px;
  cursor: pointer;
  transition: var(--neu-transition);
  display: inline-flex;
  align-items: center;
  gap: 6px;
}
.neu-btn-sm:active {
  box-shadow: inset 3px 3px 6px var(--neu-dark), inset -3px -3px 6px var(--neu-light);
}

.neu-btn-block {
  width: 100%;
  padding: 16px;
  border-radius: 16px;
  background: var(--neu-bg);
  box-shadow: 8px 8px 16px var(--neu-dark), -8px -8px 16px var(--neu-light);
  border: none;
  color: var(--neu-text);
  font-size: 16px;
  font-weight: 500;
  cursor: pointer;
  transition: var(--neu-transition);
  text-align: center;
}
.neu-btn-block:active {
  box-shadow: inset 4px 4px 8px var(--neu-dark), inset -4px -4px 8px var(--neu-light);
  transform: scale(0.98);
}