/* ==========================================================================
   每日思主 (Daily Sizhu) - Core CSS Design System & Layout
   ========================================================================== */

:root {
  /* Font Scaling Variables */
  --font-scale: 1;
  --font-base: calc(15px * var(--font-scale));
  --font-sm: calc(13px * var(--font-scale));
  --font-xs: calc(12px * var(--font-scale));
  --font-lg: calc(18px * var(--font-scale));
  --font-xl: calc(22px * var(--font-scale));
  --font-2xl: calc(26px * var(--font-scale));

  /* Color Palette - Light Theme */
  --bg-main: #f1f5f9;
  --bg-card: #ffffff;
  --bg-card-hover: #f8fafc;
  --bg-input: #f1f5f9;
  --border-color: #e2e8f0;
  --border-highlight: #3b82f6;

  --text-main: #1e293b;
  --text-muted: #64748b;
  --text-subtle: #94a3b8;

  --primary-color: #2563eb;
  --primary-hover: #1d4ed8;
  --primary-light: #eff6ff;
  --primary-text: #1d4ed8;

  --amber-color: #067fd9;
  --amber-bg: #fffbeb;
  --amber-border: #fcd34d;

  --green-color: #059669;
  --green-bg: #ecfdf5;
  --green-border: #6ee7b7;

  --red-color: #dc2626;

  --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
  --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.08), 0 2px 4px -1px rgba(0, 0, 0, 0.04);
  --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
  --radius-md: 12px;
  --radius-lg: 16px;
  --radius-full: 9999px;
  --transition-fast: all 0.2s cubic-bezier(0.4, 0, 0.2, 1);
}

/* Dark Theme Overrides */
body.dark-theme {
  --bg-main: #0f172a;
  --bg-card: #1e293b;
  --bg-card-hover: #334155;
  --bg-input: #0f172a;
  --border-color: #334155;
  --border-highlight: #60a5fa;

  --text-main: #f8fafc;
  --text-muted: #94a3b8;
  --text-subtle: #64748b;

  --primary-color: #3b82f6;
  --primary-hover: #60a5fa;
  --primary-light: #1e3a8a;
  --primary-text: #93c5fd;

  --amber-color: #067fd9;
  --amber-bg: #78350f;
  --amber-border: #b45309;

  --green-color: #34d399;
  --green-bg: #064e3b;
  --green-border: #047857;
}

/* Font Size Modifiers */
body.font-small-scale { --font-scale: 0.9; }
body.font-medium-scale { --font-scale: 1; }
body.font-large-scale { --font-scale: 1.15; }

/* Reset & Global Elements */
* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

body {
  font-family: 'Noto Sans SC', 'Inter', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  background-color: var(--bg-main);
  color: var(--text-main);
  font-size: var(--font-base);
  line-height: 1.6;
  min-height: 100vh;
  transition: background-color 0.3s ease, color 0.3s ease;
}

a {
  color: var(--primary-color);
  text-decoration: none;
}

button {
  font-family: inherit;
  font-size: inherit;
  cursor: pointer;
  border: none;
  background: none;
}

input, textarea, select {
  font-family: inherit;
  font-size: inherit;
}

/* App Container */
#app {
  display: flex;
  flex-direction: column;
  min-height: 100vh;
}

.main-content {
  flex: 1;
  width: 100%;
  max-width: 1100px;
  margin: 0 auto;
  padding: 24px 16px 48px;
}

/* Navbar Header */
.app-header {
  background-color: var(--bg-card);
  border-bottom: 1px solid var(--border-color);
  position: sticky;
  top: 0;
  z-index: 100;
  box-shadow: var(--shadow-sm);
}

.header-container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 12px 20px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.logo-section {
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 700;
  font-size: var(--font-xl);
  color: var(--text-main);
}

.logo-icon {
  width: 28px;
  height: 28px;
  color: var(--amber-color);
}

.nav-controls {
  display: flex;
  align-items: center;
  gap: 16px;
}

.font-controls {
  display: flex;
  align-items: center;
  background: var(--bg-main);
  padding: 3px 6px;
  border-radius: var(--radius-full);
  gap: 4px;
}

.font-btn {
  padding: 2px 8px;
  border-radius: var(--radius-full);
  font-size: var(--font-sm);
  font-weight: 600;
  color: var(--text-muted);
  transition: var(--transition-fast);
}

.font-btn.active, .font-btn:hover {
  background: var(--bg-card);
  color: var(--primary-color);
  box-shadow: var(--shadow-sm);
}

.icon-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  border-radius: 50%;
  color: var(--text-muted);
  transition: var(--transition-fast);
}

.icon-btn:hover {
  background: var(--bg-main);
  color: var(--text-main);
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 20px;
}

.nav-item {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 8px 12px;
  border-radius: var(--radius-md);
  color: var(--text-muted);
  font-weight: 500;
  font-size: var(--font-base);
  transition: var(--transition-fast);
}

.nav-item:hover, .nav-item.active {
  color: var(--primary-color);
  background: var(--primary-light);
}

.user-badge {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: var(--font-sm);
  color: var(--text-muted);
  padding-left: 12px;
  border-left: 1px solid var(--border-color);
}

.account-select-dropdown {
  background: var(--bg-input);
  color: var(--text-main);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 4px 8px;
  font-size: var(--font-xs);
  font-weight: 600;
  cursor: pointer;
}

.logout-btn {
  display: flex;
  align-items: center;
  gap: 4px;
  color: var(--text-muted);
  font-size: var(--font-sm);
  padding: 6px 10px;
  border-radius: var(--radius-md);
  transition: var(--transition-fast);
}

.logout-btn:hover {
  background: #fee2e2;
  color: var(--red-color);
}

/* Card Elements */
.card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 24px;
  margin-bottom: 24px;
  box-shadow: var(--shadow-sm);
  transition: var(--transition-fast);
}

.card:hover {
  box-shadow: var(--shadow-md);
}

/* Auth Tabs & Quick Chips */
.auth-tabs {
  display: flex;
  background: var(--bg-main);
  padding: 4px;
  border-radius: var(--radius-md);
  margin-bottom: 20px;
}

.auth-tab-btn {
  flex: 1;
  padding: 8px;
  border-radius: var(--radius-md);
  font-size: var(--font-sm);
  font-weight: 600;
  color: var(--text-muted);
  transition: var(--transition-fast);
}

.auth-tab-btn.active {
  background: var(--bg-card);
  color: var(--primary-color);
  box-shadow: var(--shadow-sm);
}

.quick-login-box {
  margin-top: 16px;
  padding-top: 12px;
  border-top: 1px dashed var(--border-color);
  text-align: left;
}

.quick-user-chips {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
}

.user-chip {
  background: var(--bg-main);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-full);
  padding: 4px 10px;
  font-size: var(--font-xs);
  color: var(--text-main);
  transition: var(--transition-fast);
}

.user-chip:hover {
  border-color: var(--primary-color);
  color: var(--primary-color);
}

/* Date Switcher Bar */
.date-header-bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 24px;
}

.page-title {
  font-size: var(--font-2xl);
  font-weight: 700;
}

.date-picker-controls {
  display: flex;
  align-items: center;
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-full);
  padding: 4px 14px;
  gap: 12px;
  box-shadow: var(--shadow-sm);
}

.date-nav-btn {
  color: var(--text-muted);
  padding: 4px;
  border-radius: 50%;
  display: flex;
  align-items: center;
}

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

.current-date-display {
  font-weight: 600;
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: var(--font-sm);
  cursor: pointer;
  position: relative;
  transition: var(--transition-fast);
}

.current-date-display:hover {
  color: var(--primary-color);
}

.hidden-date-input {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  opacity: 0;
  cursor: pointer;
}

/* Daily Scripture Card */
.scripture-card {
  border-left: 4px solid var(--amber-color);
  position: relative;
}

.scripture-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 12px;
}

.scripture-title-tag {
  display: flex;
  align-items: center;
  gap: 6px;
  font-weight: 600;
  font-size: var(--font-base);
  color: var(--text-main);
}

.listen-btn {
  display: flex;
  align-items: center;
  gap: 6px;
  color: var(--primary-color);
  font-size: var(--font-sm);
  font-weight: 500;
  padding: 4px 10px;
  border-radius: var(--radius-full);
  background: var(--primary-light);
  transition: var(--transition-fast);
}

.listen-btn:hover {
  background: #dbeafe;
}

.scripture-section-title {
  font-size: var(--font-xl);
  font-weight: 700;
  margin-bottom: 16px;
}

.scripture-excerpt {
  background: var(--bg-main);
  padding: 16px 20px;
  border-radius: var(--radius-md);
  border-left: 3px solid var(--border-color);
  margin-bottom: 16px;
  color: var(--text-main);
  line-height: 1.8;
}

.expand-text-btn {
  display: flex;
  align-items: center;
  gap: 6px;
  color: var(--text-muted);
  font-size: var(--font-sm);
  font-weight: 500;
  transition: var(--transition-fast);
}

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

.full-scripture-modal {
  max-height: 400px;
  overflow-y: auto;
  background: var(--bg-main);
  border-radius: var(--radius-md);
  padding: 20px;
  margin-top: 16px;
  line-height: 2;
  border: 1px solid var(--border-color);
}

/* Homework Submission Card */
.homework-card {
  text-align: center;
  background: var(--bg-card);
}

.completed-banner {
  padding: 24px;
}

.party-icon {
  font-size: 40px;
  margin-bottom: 12px;
}

.completed-title {
  font-size: var(--font-xl);
  font-weight: 700;
  margin-bottom: 8px;
}

.completed-subtitle {
  color: var(--text-muted);
  font-size: var(--font-sm);
}

.homework-input-box {
  text-align: left;
}

.homework-textarea {
  width: 100%;
  min-height: 120px;
  padding: 16px;
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  background: var(--bg-input);
  color: var(--text-main);
  resize: vertical;
  outline: none;
  transition: var(--transition-fast);
  margin-bottom: 16px;
}

.homework-textarea:focus {
  border-color: var(--primary-color);
  box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.15);
}

.submit-homework-btn {
  background: var(--primary-color);
  color: #fff;
  padding: 10px 24px;
  border-radius: var(--radius-md);
  font-weight: 600;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  transition: var(--transition-fast);
}

.submit-homework-btn:hover {
  background: var(--primary-hover);
}

/* Feed & Tabs */
.feed-header-tabs {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 16px;
  border-bottom: 2px solid var(--border-color);
}

.tab-group {
  display: flex;
  gap: 24px;
}

.feed-tab {
  padding: 12px 4px;
  font-weight: 600;
  color: var(--text-muted);
  position: relative;
  transition: var(--transition-fast);
}

.feed-tab.active {
  color: var(--primary-color);
}

.feed-tab.active::after {
  content: '';
  position: absolute;
  bottom: -2px;
  left: 0;
  right: 0;
  height: 3px;
  background: var(--primary-color);
  border-radius: 3px 3px 0 0;
}

.feed-count {
  color: var(--text-subtle);
  font-size: var(--font-sm);
}

/* Feed Post Card */
.post-card {
  position: relative;
}

.post-card.my-post {
  border: 1.5px solid var(--primary-color);
}

.post-top-right-actions {
  position: absolute;
  top: 16px;
  right: 16px;
  display: flex;
  align-items: center;
  gap: 8px;
}

.edit-post-badge-btn {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  background: var(--bg-main);
  border: 1px solid var(--border-color);
  color: var(--text-muted);
  font-size: 11px;
  padding: 2px 8px;
  border-radius: var(--radius-full);
  font-weight: 600;
  cursor: pointer;
  transition: var(--transition-fast);
}

.edit-post-badge-btn:hover {
  color: var(--primary-color);
  border-color: var(--primary-color);
  background: var(--primary-light);
}

.edit-post-badge-btn i {
  width: 12px;
  height: 12px;
}

.my-post-badge {
  background: var(--primary-color);
  color: white;
  font-size: 11px;
  padding: 2px 8px;
  border-radius: var(--radius-full);
  font-weight: 600;
}

.post-edit-box {
  margin: 8px 0;
}

.post-edit-textarea {
  width: 100%;
  min-height: 80px;
  padding: 10px 12px;
  border: 1px solid var(--primary-color);
  border-radius: var(--radius-md);
  background: var(--bg-input);
  color: var(--text-main);
  font-size: var(--font-base);
  outline: none;
  resize: vertical;
}

.post-edit-buttons {
  display: flex;
  justify-content: flex-end;
  gap: 8px;
  margin-top: 8px;
}

.save-edit-btn {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  background: var(--primary-color);
  color: white;
  padding: 6px 14px;
  border-radius: var(--radius-md);
  font-size: var(--font-xs);
  font-weight: 600;
  border: none;
  cursor: pointer;
  transition: var(--transition-fast);
}

.save-edit-btn:hover {
  background: var(--primary-hover);
}

.cancel-edit-btn {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  background: var(--bg-main);
  color: var(--text-muted);
  border: 1px solid var(--border-color);
  padding: 6px 14px;
  border-radius: var(--radius-md);
  font-size: var(--font-xs);
  font-weight: 600;
  cursor: pointer;
}

.post-header {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 12px;
}

.user-avatar {
  width: 42px;
  height: 42px;
  border-radius: 50%;
  background: linear-gradient(135deg, #ec4899, #8b5cf6);
  color: white;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  font-size: var(--font-base);
}

.user-meta {
  display: flex;
  flex-direction: column;
}

.user-name {
  font-weight: 700;
  color: var(--text-main);
}

.post-subtitle {
  font-size: var(--font-xs);
  color: var(--text-muted);
  display: flex;
  align-items: center;
  gap: 8px;
}

.post-body {
  color: var(--text-main);
  line-height: 1.8;
  margin-bottom: 16px;
  white-space: pre-wrap;
}

.post-actions {
  display: flex;
  align-items: center;
  gap: 24px;
  padding-top: 12px;
  border-top: 1px solid var(--border-color);
}

.action-btn {
  display: flex;
  align-items: center;
  gap: 6px;
  color: var(--text-muted);
  font-size: var(--font-sm);
  font-weight: 500;
  transition: var(--transition-fast);
}

.action-btn:hover, .action-btn.liked {
  color: var(--primary-color);
}

.comments-section {
  margin-top: 16px;
  padding-top: 16px;
  border-top: 1px dashed var(--border-color);
  background: var(--bg-main);
  border-radius: var(--radius-md);
  padding: 16px;
}

.comment-input-row {
  display: flex;
  gap: 8px;
  margin-bottom: 12px;
}

.comment-input {
  flex: 1;
  padding: 8px 12px;
  border-radius: var(--radius-md);
  border: 1px solid var(--border-color);
  background: var(--bg-card);
  color: var(--text-main);
  font-size: var(--font-sm);
}

.comment-submit-btn {
  background: var(--primary-color);
  color: white;
  padding: 6px 14px;
  border-radius: var(--radius-md);
  font-size: var(--font-sm);
}

.comment-item {
  font-size: var(--font-sm);
  margin-bottom: 8px;
  padding-bottom: 8px;
  border-bottom: 1px solid var(--border-color);
}

.comment-author {
  font-weight: 600;
  margin-right: 6px;
}

/* Progress Page Styling */
.progress-hero-card {
  text-align: center;
  padding: 36px 24px;
  background: var(--bg-card);
}

.streak-pill {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: var(--amber-bg);
  color: var(--amber-color);
  border: 1px solid var(--amber-border);
  padding: 8px 20px;
  border-radius: var(--radius-full);
  font-weight: 700;
  font-size: var(--font-lg);
  margin-top: 16px;
}

.calendar-grid-card {
  background: var(--bg-card);
}

.grid-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 20px;
}

.grid-title {
  font-size: var(--font-lg);
  font-weight: 700;
}

.month-selector {
  padding: 6px 12px;
  border-radius: var(--radius-md);
  border: 1px solid var(--border-color);
  background: var(--bg-input);
  color: var(--text-main);
}

.days-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(160px, 1fr));
  gap: 16px;
}

.day-card {
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 16px;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  min-height: 90px;
  background: var(--bg-card);
  transition: var(--transition-fast);
}

.day-card.completed {
  background: var(--green-bg);
  border-color: var(--green-border);
}

.day-card-top {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.day-date {
  font-weight: 700;
  font-size: var(--font-base);
}

.status-icon {
  width: 20px;
  height: 20px;
}

.completed .status-icon {
  color: var(--green-color);
}

.uncompleted .status-icon {
  color: var(--text-subtle);
}

.day-desc {
  font-size: var(--font-xs);
  color: var(--text-muted);
  margin-top: 8px;
}

/* Archive Search & Filter Bar */
.filter-card {
  background: var(--bg-card);
}

.filter-row {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 16px;
}

.filter-group {
  display: flex;
  align-items: center;
  gap: 8px;
}

.filter-label {
  font-size: var(--font-sm);
  color: var(--text-muted);
  display: flex;
  align-items: center;
  gap: 4px;
}

.filter-select, .filter-input {
  padding: 8px 12px;
  border-radius: var(--radius-md);
  border: 1px solid var(--border-color);
  background: var(--bg-input);
  color: var(--text-main);
}

.clear-btn {
  border: 1px solid var(--primary-color);
  color: var(--primary-color);
  padding: 8px 16px;
  border-radius: var(--radius-md);
  font-size: var(--font-sm);
  font-weight: 600;
  transition: var(--transition-fast);
}

.clear-btn:hover {
  background: var(--primary-light);
}

/* Login Modal Backdrop */
.modal-backdrop {
  position: fixed;
  inset: 0;
  background: rgba(15, 23, 42, 0.6);
  backdrop-filter: blur(4px);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 1000;
  padding: 20px;
}

.login-card {
  background: var(--bg-card);
  border-radius: var(--radius-lg);
  padding: 36px 32px;
  width: 100%;
  max-width: 440px;
  box-shadow: var(--shadow-lg);
  text-align: center;
  border: 1px solid var(--border-color);
}

.login-logo {
  width: 48px;
  height: 48px;
  color: var(--amber-color);
  margin: 0 auto 16px;
}

.login-title {
  font-size: var(--font-xl);
  font-weight: 700;
  margin-bottom: 4px;
}

.login-subtitle {
  color: var(--text-muted);
  font-size: var(--font-sm);
  margin-bottom: 20px;
}

.form-group {
  text-align: left;
  margin-bottom: 16px;
}

.form-label {
  display: block;
  font-size: var(--font-xs);
  font-weight: 600;
  color: var(--text-muted);
  margin-bottom: 6px;
}

.form-input {
  width: 100%;
  padding: 10px 14px;
  border-radius: var(--radius-md);
  border: 1px solid var(--border-color);
  background: var(--bg-input);
  color: var(--text-main);
  outline: none;
  transition: var(--transition-fast);
}

.form-input:focus {
  border-color: var(--primary-color);
  box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.15);
}

.submit-login-btn {
  width: 100%;
  background: var(--primary-color);
  color: white;
  padding: 12px;
  border-radius: var(--radius-md);
  font-weight: 600;
  font-size: var(--font-base);
  margin-top: 8px;
  transition: var(--transition-fast);
}

.submit-login-btn:hover {
  background: var(--primary-hover);
}

/* SQL Code Snippet Box */
.sql-box {
  background: var(--bg-main);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 12px;
  font-family: monospace;
  font-size: 12px;
  max-height: 180px;
  overflow-y: auto;
  white-space: pre;
  text-align: left;
}

/* Audio Player Overlay */
.audio-bar {
  position: fixed;
  bottom: 20px;
  left: 50%;
  transform: translateX(-50%);
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-full);
  padding: 12px 24px;
  display: flex;
  align-items: center;
  gap: 16px;
  box-shadow: var(--shadow-lg);
  z-index: 500;
}

/* Helper Visibility Classes */
.mobile-only {
  display: none !important;
}

/* Rich Editor Toolbar for Reflection Card */
.reflection-card-title {
  font-size: var(--font-lg);
  font-weight: 700;
  margin-bottom: 14px;
  color: var(--text-main);
  text-align: left;
}

.editor-container {
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  overflow: hidden;
  background: var(--bg-card);
}

.editor-toolbar {
  display: flex;
  align-items: center;
  gap: 8px;
  background: var(--bg-main);
  border-bottom: 1px solid var(--border-color);
  padding: 8px 12px;
}

.editor-tool-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 32px;
  height: 32px;
  border-radius: var(--radius-sm);
  color: var(--text-muted);
  background: transparent;
  border: none;
  cursor: pointer;
  font-size: 14px;
  font-weight: 600;
  transition: var(--transition-fast);
}

.editor-tool-btn:hover {
  background: var(--bg-card);
  color: var(--primary-color);
}

.homework-textarea {
  width: 100%;
  min-height: 120px;
  padding: 14px;
  border: none;
  background: transparent;
  color: var(--text-main);
  outline: none;
  font-size: var(--font-base);
  resize: vertical;
}

/* Mobile Bottom Navigation Bar */
.mobile-bottom-tabbar {
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  height: 60px;
  background: var(--bg-card);
  border-top: 1px solid var(--border-color);
  display: flex;
  align-items: center;
  justify-content: space-around;
  z-index: 1000;
  box-shadow: 0 -2px 12px rgba(0, 0, 0, 0.06);
  backdrop-filter: blur(12px);
}

.mobile-tab-item {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 3px;
  flex: 1;
  height: 100%;
  color: var(--text-muted);
  font-size: 11px;
  font-weight: 500;
  background: transparent;
  border: none;
  cursor: pointer;
  transition: var(--transition-fast);
}

.mobile-tab-item i {
  width: 22px;
  height: 22px;
}

.mobile-tab-item.active {
  color: var(--primary-color);
  font-weight: 700;
}

/* Responsive Rules for Mobile */
@media (max-width: 768px) {
  .desktop-only {
    display: none !important;
  }
  
  .mobile-only {
    display: flex !important;
  }

  body {
    padding-bottom: 70px;
  }

  .header-container {
    justify-content: space-between;
    padding: 10px 16px;
  }

  .nav-controls {
    gap: 10px;
  }

  .font-controls {
    background: var(--bg-main);
    padding: 2px;
    border-radius: var(--radius-full);
  }

  .font-btn {
    padding: 2px 8px;
    font-size: 12px;
  }

  .date-header-bar {
    margin-bottom: 16px;
  }

  .page-title {
    font-size: 24px;
  }

  .date-picker-controls {
    padding: 4px 10px;
    gap: 8px;
  }

  .current-date-display {
    font-size: 13px;
  }

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

  .filter-row {
    flex-direction: column;
    align-items: stretch;
  }
}