/* ==========================================================================
   Spac2 Calendar - Ultra Responsive & Fluid Glassmorphic Design System
   Path: /app/calendar/css/calendar.css
   ========================================================================== */

/* 1. Design Tokens & Themes */
:root {
  /* Brand Tokens */
  --primary: #2978FF;
  --primary-hover: #1765ea;
  --primary-active: #0f52c6;
  --primary-soft: rgba(41, 120, 255, 0.12);
  --primary-soft-hover: rgba(41, 120, 255, 0.20);
  --primary-glow: rgba(41, 120, 255, 0.35);
  --primary-gradient: linear-gradient(135deg, #2978FF 0%, #1555df 100%);
  --primary-gradient-subtle: linear-gradient(135deg, rgba(41, 120, 255, 0.15) 0%, rgba(21, 85, 223, 0.05) 100%);

  /* Light Theme (Default) */
  --bg-body: #F6F8FC;
  --bg-surface: #FFFFFF;
  --bg-surface-elevated: #F1F5F9;
  --bg-surface-active: #E2E8F0;
  --bg-header-pill: rgba(255, 255, 255, 0.85);
  --bg-bottom-nav: rgba(255, 255, 255, 0.90);
  --bg-btn-icon: #F1F5F9;
  --bg-btn-icon-hover: #E2E8F0;
  --bg-btn-icon-active: #CBD5E1;
  --border: #E2E8F0;
  --border-light: rgba(0, 0, 0, 0.05);
  --border-header: rgba(0, 0, 0, 0.08);
  --text-primary: #0F172A;
  --text-secondary: #64748B;
  --text-muted: #94A3B8;
  --shadow-sm: 0 2px 8px rgba(15, 23, 42, 0.04);
  --shadow-md: 0 10px 30px rgba(15, 23, 42, 0.06), 0 1px 3px rgba(15, 23, 42, 0.04);
  --shadow-lg: 0 20px 45px rgba(15, 23, 42, 0.12), 0 4px 12px rgba(15, 23, 42, 0.06);
  --cell-hover-bg: rgba(41, 120, 255, 0.04);
  --modal-backdrop: rgba(15, 23, 42, 0.48);
  --badge-lunar-bg: #EEF2FF;
  --badge-lunar-text: #4F46E5;
  --danger: #EF4444;
  --danger-soft: rgba(239, 68, 68, 0.1);
  --today-bg: rgba(41, 120, 255, 0.08);

  /* Geometry & Physics */
  --radius-xs: 6px;
  --radius-sm: 10px;
  --radius-md: 14px;
  --radius-lg: 20px;
  --radius-xl: 28px;
  --radius-pill: 9999px;
  --transition: all 0.22s cubic-bezier(0.34, 1.56, 0.64, 1);
  --transition-smooth: all 0.25s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-fast: all 0.14s ease-out;
}

/* Dark Theme */
[data-theme="dark"] {
  --bg-body: #08090C;
  --bg-surface: #111218;
  --bg-surface-elevated: #181922;
  --bg-surface-active: #222430;
  --bg-header-pill: rgba(17, 18, 24, 0.85);
  --bg-bottom-nav: rgba(17, 18, 24, 0.90);
  --bg-btn-icon: #1a1b24;
  --bg-btn-icon-hover: #262734;
  --bg-btn-icon-active: #15161e;
  --border: rgba(255, 255, 255, 0.08);
  --border-light: rgba(255, 255, 255, 0.04);
  --border-header: rgba(255, 255, 255, 0.12);
  --text-primary: #FFFFFF;
  --text-secondary: #9EA3B0;
  --text-muted: #626677;
  --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.5);
  --shadow-md: 0 10px 32px rgba(0, 0, 0, 0.65), 0 0 1px rgba(255, 255, 255, 0.08);
  --shadow-lg: 0 24px 50px rgba(0, 0, 0, 0.85), 0 0 1px rgba(255, 255, 255, 0.12);
  --cell-hover-bg: rgba(255, 255, 255, 0.04);
  --modal-backdrop: rgba(0, 0, 0, 0.76);
  --badge-lunar-bg: rgba(99, 102, 241, 0.22);
  --badge-lunar-text: #A5B4FC;
  --danger: #EF4444;
  --danger-soft: rgba(239, 68, 68, 0.16);
  --today-bg: rgba(41, 120, 255, 0.14);
}

/* 2. Global Reset & Typography */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
  -webkit-tap-highlight-color: transparent;
}

html {
  font-size: 16px;
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
}

body {
  width: 100%;
  min-height: 100vh;
  min-height: -webkit-fill-available;
  background-color: var(--bg-body);
  color: var(--text-primary);
  font-family: 'Outfit', 'Plus Jakarta Sans', 'Poppins', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  transition: background-color 0.25s ease, color 0.25s ease;
  display: flex;
  flex-direction: column;
}

/* Scrollbar Customization */
::-webkit-scrollbar {
  width: 6px;
  height: 6px;
}
::-webkit-scrollbar-track {
  background: transparent;
}
::-webkit-scrollbar-thumb {
  background: var(--border);
  border-radius: 99px;
}
::-webkit-scrollbar-thumb:hover {
  background: var(--text-muted);
}

/* 3. Floating Navigation Header */
.calendar-header-container {
  width: 100%;
  max-width: 1280px;
  margin: 0 auto;
  padding: calc(12px + env(safe-area-inset-top, 0px)) 20px 10px 20px;
  position: sticky;
  top: 0;
  z-index: 100;
}

.calendar-header-pill {
  display: flex;
  align-items: center;
  justify-content: space-between;
  background: var(--bg-header-pill);
  border: 1px solid var(--border-header);
  border-radius: var(--radius-xl);
  padding: 6px 12px;
  box-shadow: var(--shadow-md);
  backdrop-filter: blur(28px);
  -webkit-backdrop-filter: blur(28px);
  gap: 12px;
  transition: var(--transition-smooth);
}

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

/* Header Action Buttons */
.btn-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 42px;
  height: 42px;
  background: var(--bg-btn-icon);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  color: var(--text-primary);
  cursor: pointer;
  padding: 0;
  outline: none;
  text-decoration: none;
  position: relative;
  transition: var(--transition-fast);
  user-select: none;
  flex-shrink: 0;
}

.btn-icon:hover {
  background: var(--bg-btn-icon-hover);
  border-color: rgba(255, 255, 255, 0.22);
  transform: translateY(-1px);
}

.btn-icon:active {
  transform: scale(0.93);
  background: var(--bg-btn-icon-active);
}

.btn-icon svg {
  width: 20px;
  height: 20px;
  stroke: currentColor;
  fill: none;
  stroke-width: 2;
  stroke-linecap: round;
  stroke-linejoin: round;
}

.brand-btn {
  padding: 4px;
  overflow: hidden;
}

.brand-btn img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  border-radius: 10px;
}

/* Month & Year Navigator Pill */
.month-selector-group {
  display: flex;
  align-items: center;
  background: var(--bg-btn-icon);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 3px 4px;
  gap: 2px;
}

.btn-icon-sm {
  width: 34px;
  height: 34px;
  border-radius: var(--radius-sm);
  background: transparent;
  border: none;
  color: var(--text-primary);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: var(--transition-fast);
}

.btn-icon-sm svg {
  width: 16px;
  height: 16px;
  stroke-width: 2.4;
}

.btn-icon-sm:hover {
  background: var(--bg-btn-icon-hover);
}

.btn-icon-sm:active {
  transform: scale(0.9);
}

.month-title-btn {
  background: transparent;
  border: none;
  color: var(--text-primary);
  font-size: 15px;
  font-weight: 700;
  font-family: inherit;
  padding: 6px 10px;
  cursor: pointer;
  display: flex;
  align-items: center;
  gap: 6px;
  border-radius: var(--radius-sm);
  transition: var(--transition-fast);
  white-space: nowrap;
}

.month-title-btn:hover {
  background: var(--bg-btn-icon-hover);
  color: var(--primary);
}

.month-title-btn:active {
  transform: scale(0.96);
}

.month-title-btn svg {
  width: 14px;
  height: 14px;
  stroke: currentColor;
  stroke-width: 2.2;
}

/* Today Button */
.today-pill-btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 0 14px;
  height: 40px;
  background: var(--bg-btn-icon);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  color: var(--text-primary);
  font-size: 13.5px;
  font-weight: 600;
  font-family: inherit;
  cursor: pointer;
  transition: var(--transition-fast);
  white-space: nowrap;
}

.today-pill-btn .today-dot {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background-color: var(--primary);
  display: inline-block;
}

.today-pill-btn:hover {
  background: var(--primary-soft);
  border-color: var(--primary);
  color: var(--primary);
  transform: translateY(-1px);
}

.today-pill-btn:active {
  transform: scale(0.94);
}

.today-pill-btn .kbd-hint {
  font-size: 11px;
  font-weight: 700;
  padding: 1px 5px;
  border-radius: 4px;
  background: rgba(128, 128, 128, 0.18);
  color: var(--text-secondary);
  margin-left: 2px;
}

/* Desktop Header Create Button */
.btn-create-header {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 0 14px;
  height: 40px;
  background: var(--primary-gradient);
  color: #FFFFFF;
  border: none;
  border-radius: var(--radius-md);
  font-size: 13.5px;
  font-weight: 700;
  font-family: inherit;
  cursor: pointer;
  transition: var(--transition-fast);
  box-shadow: 0 3px 12px var(--primary-glow);
  white-space: nowrap;
}

.btn-create-header:hover {
  transform: translateY(-1px);
  box-shadow: 0 5px 18px var(--primary-glow);
  filter: brightness(1.08);
}

.btn-create-header:active {
  transform: scale(0.95);
}

.btn-create-header svg {
  width: 16px;
  height: 16px;
  stroke: #FFFFFF;
  stroke-width: 2.4;
}

/* Search Shortcut Badge in Header */
.search-kbd-badge {
  position: absolute;
  bottom: 3px;
  right: 4px;
  font-size: 10px;
  font-weight: 700;
  color: var(--text-muted);
  line-height: 1;
}

/* Theme Toggle Icons */
.theme-toggle-btn .icon-sun {
  display: none;
}
.theme-toggle-btn .icon-moon {
  display: block;
}
[data-theme="light"] .theme-toggle-btn .icon-sun {
  display: block;
}
[data-theme="light"] .theme-toggle-btn .icon-moon {
  display: none;
}

/* 4. Main Dual-Layout Workspace */
.calendar-main-layout {
  width: 100%;
  max-width: 1280px;
  margin: 0 auto;
  padding: 8px 20px 48px 20px;
  display: grid;
  grid-template-columns: 1fr 370px;
  gap: 22px;
  align-items: start;
  flex: 1;
}

/* Left: Calendar View Section */
.calendar-view-card {
  background: var(--bg-surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-xl);
  padding: 18px;
  box-shadow: var(--shadow-sm);
  overflow: hidden;
  position: relative;
  transition: var(--transition-smooth);
}

/* Weekday header */
.weekday-header {
  display: grid;
  grid-template-columns: repeat(7, 1fr);
  gap: 6px;
  margin-bottom: 10px;
  text-align: center;
}

.weekday-col {
  font-size: 12px;
  font-weight: 700;
  color: var(--text-secondary);
  text-transform: uppercase;
  letter-spacing: 0.8px;
  padding: 6px 0;
  user-select: none;
}

.weekday-col .day-full {
  display: none;
}

.weekday-col.weekend {
  color: #EC4899;
}

/* Carousel 3-Panel Touch Slider */
.calendar-carousel-viewport {
  width: 100%;
  overflow: hidden;
  position: relative;
  border-radius: var(--radius-lg);
  touch-action: pan-y pinch-zoom;
  user-select: none;
}

.calendar-carousel-track {
  display: flex;
  width: 300%;
  transform: translateX(-33.333333%);
  transition: transform 0.28s cubic-bezier(0.25, 1, 0.5, 1);
  will-change: transform;
}

.calendar-carousel-track.no-transition {
  transition: none !important;
}

.calendar-grid-panel {
  width: 33.333333%;
  flex-shrink: 0;
  display: grid;
  grid-template-columns: repeat(7, 1fr);
  gap: 6px;
  align-content: start;
}

/* Day Cell Component */
.day-cell {
  background: var(--bg-surface-elevated);
  border: 1px solid var(--border-light);
  border-radius: var(--radius-md);
  min-height: 108px;
  padding: 8px 8px;
  display: flex;
  flex-direction: column;
  cursor: pointer;
  position: relative;
  transition: transform 0.16s cubic-bezier(0.34, 1.56, 0.64, 1), background-color 0.16s ease, border-color 0.16s ease, box-shadow 0.16s ease;
  user-select: none;
  overflow: hidden;
}

.day-cell:hover {
  background: var(--cell-hover-bg);
  border-color: rgba(41, 120, 255, 0.35);
  transform: translateY(-2px);
  box-shadow: var(--shadow-sm);
  z-index: 1;
}

.day-cell:active {
  transform: scale(0.97);
}

.day-cell.inactive {
  opacity: 0.35;
}

.day-cell.inactive:hover {
  opacity: 0.7;
}

.day-cell.today {
  border-color: var(--primary);
  background: var(--today-bg);
}

.day-cell.today .solar-num {
  color: var(--primary);
  font-weight: 800;
}

.day-cell.selected {
  border: 2px solid var(--primary);
  background: var(--primary-soft);
  box-shadow: 0 0 0 3px var(--primary-glow);
  z-index: 2;
  transform: translateY(-1px);
}

/* Day Header (Solar & Lunar numbers) */
.day-cell-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 5px;
}

.solar-num {
  font-size: 15px;
  font-weight: 700;
  color: var(--text-primary);
  line-height: 1;
}

.lunar-num {
  font-size: 10.5px;
  font-weight: 600;
  color: var(--text-muted);
  line-height: 1;
}

.lunar-badge-first {
  color: #4F46E5 !important;
  font-weight: 800 !important;
  background: var(--badge-lunar-bg);
  padding: 1px 4px;
  border-radius: 4px;
}

[data-theme="dark"] .lunar-badge-first {
  color: #A5B4FC !important;
  background: rgba(99, 102, 241, 0.25);
}

/* Event Bars inside Cell */
.cell-events-list {
  display: flex;
  flex-direction: column;
  gap: 3px;
  flex: 1;
  overflow: hidden;
}

.event-bar-pill {
  font-size: 11px;
  font-weight: 600;
  line-height: 1.25;
  padding: 2px 6px;
  border-radius: 4px;
  color: #FFFFFF;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  display: flex;
  align-items: center;
  gap: 4px;
  transition: transform 0.12s ease, filter 0.12s ease;
}

.event-bar-pill:hover {
  filter: brightness(1.15);
  transform: scale(1.02);
}

.event-bar-pill.holiday-pill {
  background-color: #F59E0B !important;
  color: #000000 !important;
  font-weight: 700;
}

.more-events-badge {
  font-size: 10px;
  font-weight: 700;
  color: var(--text-secondary);
  background: rgba(128, 128, 128, 0.15);
  padding: 1px 5px;
  border-radius: 4px;
  align-self: flex-start;
  margin-top: 1px;
}

/* Mobile dots indicator container (shown on small screens) */
.mobile-dots-row {
  display: none;
  align-items: center;
  justify-content: center;
  gap: 3px;
  margin-top: auto;
  padding-top: 2px;
}

.mobile-event-dot {
  width: 5px;
  height: 5px;
  border-radius: 50%;
  flex-shrink: 0;
}

/* Quick Add Button on Hover (Desktop) */
.btn-quick-add {
  position: absolute;
  top: 5px;
  right: 5px;
  width: 22px;
  height: 22px;
  border-radius: 6px;
  background: var(--primary);
  color: #FFFFFF;
  border: none;
  display: none;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: transform 0.15s ease;
  z-index: 5;
}

.btn-quick-add svg {
  width: 14px;
  height: 14px;
  stroke: #FFFFFF;
  stroke-width: 2.5;
}

.day-cell:hover .btn-quick-add {
  display: flex;
}

.btn-quick-add:hover {
  transform: scale(1.15);
}

.btn-quick-add:active {
  transform: scale(0.9);
}

/* 5. Right: Side Panel (Desktop & Tablet) */
.calendar-side-panel {
  display: flex;
  flex-direction: column;
  gap: 16px;
  position: sticky;
  top: 86px;
}

.side-panel-card {
  background: var(--bg-surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-xl);
  padding: 22px;
  box-shadow: var(--shadow-sm);
  display: flex;
  flex-direction: column;
  gap: 18px;
  transition: var(--transition-smooth);
}

/* Side Panel Header Hero */
.side-panel-header {
  border-bottom: 1px solid var(--border);
  padding-bottom: 16px;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.side-header-top-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.selected-day-tag {
  display: inline-flex;
  align-items: center;
  font-size: 12px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.8px;
  color: var(--primary);
}

.side-event-count-badge {
  font-size: 11.5px;
  font-weight: 700;
  padding: 3px 8px;
  border-radius: var(--radius-pill);
  background: var(--primary-soft);
  color: var(--primary);
}

.side-date-hero-group {
  display: flex;
  align-items: center;
  gap: 14px;
}

.side-date-badge-box {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  width: 54px;
  height: 56px;
  background: var(--primary-gradient);
  border-radius: var(--radius-md);
  color: #FFFFFF;
  box-shadow: 0 4px 14px var(--primary-glow);
  flex-shrink: 0;
}

.side-badge-month {
  font-size: 10.5px;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 0.8px;
  line-height: 1;
  opacity: 0.9;
}

.side-badge-day {
  font-size: 22px;
  font-weight: 900;
  line-height: 1.1;
}

.side-date-text-group {
  display: flex;
  flex-direction: column;
  gap: 2px;
  min-width: 0;
}

.selected-date-title {
  font-size: 19px;
  font-weight: 800;
  color: var(--text-primary);
  line-height: 1.25;
}

.selected-lunar-title {
  font-size: 12.5px;
  font-weight: 600;
  color: var(--text-secondary);
  display: flex;
  align-items: center;
  gap: 5px;
}

.selected-lunar-title svg {
  width: 13px;
  height: 13px;
  stroke: var(--primary);
  flex-shrink: 0;
}

/* Primary Add Event Button */
.btn-add-primary {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  width: 100%;
  padding: 12px 18px;
  background: var(--primary-gradient);
  color: #FFFFFF;
  border: none;
  border-radius: var(--radius-md);
  font-size: 14px;
  font-weight: 700;
  font-family: inherit;
  cursor: pointer;
  transition: var(--transition-fast);
  box-shadow: 0 4px 16px var(--primary-glow);
}

.btn-add-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 22px var(--primary-glow);
  filter: brightness(1.06);
}

.btn-add-primary:active {
  transform: scale(0.97);
}

.btn-add-primary svg {
  width: 18px;
  height: 18px;
  stroke: #FFFFFF;
  stroke-width: 2.2;
}

/* Events Timeline Section */
.side-events-section-title {
  font-size: 12px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.6px;
  color: var(--text-muted);
  margin-bottom: 10px;
}

.side-events-list {
  display: flex;
  flex-direction: column;
  gap: 10px;
  max-height: 380px;
  overflow-y: auto;
  padding-right: 4px;
}

/* Event Item Card */
.event-item-card {
  background: var(--bg-surface-elevated);
  border: 1px solid var(--border-light);
  border-left: 4px solid var(--primary);
  border-radius: var(--radius-md);
  padding: 12px 14px;
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 10px;
  transition: var(--transition-fast);
}

.event-item-card:hover {
  border-color: var(--border);
  background: var(--bg-surface);
  transform: translateX(3px);
  box-shadow: var(--shadow-sm);
}

.event-item-card.is-holiday {
  border-left-color: #F59E0B !important;
  background: rgba(245, 158, 11, 0.08);
}

.event-item-content {
  flex: 1;
  min-width: 0;
}

.event-item-time {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 12px;
  font-weight: 600;
  color: var(--text-secondary);
  margin-bottom: 4px;
}

.event-item-time svg {
  width: 13px;
  height: 13px;
  stroke: currentColor;
}

.event-item-title {
  font-size: 14.5px;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 2px;
  word-break: break-word;
}

.event-item-desc {
  font-size: 12.5px;
  color: var(--text-secondary);
  line-height: 1.45;
  word-break: break-word;
}

.event-item-badge-holiday {
  display: inline-block;
  font-size: 10.5px;
  font-weight: 700;
  padding: 2px 7px;
  background: #F59E0B;
  color: #000000;
  border-radius: 4px;
  margin-top: 4px;
}

/* Event Actions (Edit & Delete) */
.event-item-actions {
  display: flex;
  align-items: center;
  gap: 4px;
  opacity: 0.8;
}

.event-item-card:hover .event-item-actions {
  opacity: 1;
}

.btn-item-action {
  width: 30px;
  height: 30px;
  border-radius: var(--radius-xs);
  background: transparent;
  border: none;
  color: var(--text-secondary);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: var(--transition-fast);
}

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

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

.btn-item-action:active {
  transform: scale(0.9);
}

.btn-item-action svg {
  width: 15px;
  height: 15px;
  stroke: currentColor;
  stroke-width: 2;
}

/* Empty State */
.events-empty-state {
  text-align: center;
  padding: 28px 10px;
  color: var(--text-muted);
}

.events-empty-state svg {
  width: 44px;
  height: 44px;
  stroke: var(--text-muted);
  opacity: 0.35;
  margin-bottom: 8px;
}

.events-empty-state p {
  font-size: 13.5px;
  font-weight: 500;
}

/* Shortcuts Card (Desktop) */
.shortcuts-card {
  background: var(--bg-surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-xl);
  padding: 16px 20px;
  box-shadow: var(--shadow-sm);
}

.shortcuts-title {
  font-size: 12px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.6px;
  color: var(--text-secondary);
  margin-bottom: 12px;
  display: flex;
  align-items: center;
  gap: 6px;
}

.shortcuts-list {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 8px 12px;
}

.shortcut-item {
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: 12px;
  color: var(--text-secondary);
}

.shortcut-kbd {
  font-family: monospace;
  font-size: 11px;
  font-weight: 700;
  padding: 2px 6px;
  background: var(--bg-surface-elevated);
  border: 1px solid var(--border);
  border-radius: 4px;
  color: var(--text-primary);
}

/* 6. Modals & Dialogs */
.modal-overlay {
  position: fixed;
  inset: 0;
  background: var(--modal-backdrop);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 16px;
  z-index: 1000;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.22s ease;
  overscroll-behavior: contain;
}

.modal-overlay.active {
  opacity: 1;
  pointer-events: auto;
}

.modal-card {
  background: var(--bg-surface);
  border: 1px solid var(--border-header);
  border-radius: var(--radius-xl);
  width: 100%;
  max-width: 500px;
  box-shadow: var(--shadow-lg);
  padding: 24px;
  transform: scale(0.95) translateY(12px);
  transition: transform 0.26s cubic-bezier(0.34, 1.56, 0.64, 1);
  max-height: 90vh;
  overflow-y: auto;
  position: relative;
}

.modal-drag-handle {
  display: none;
}

.modal-overlay.active .modal-card {
  transform: scale(1) translateY(0);
}

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

.modal-header-info {
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.modal-title {
  font-size: 18px;
  font-weight: 800;
  color: var(--text-primary);
}

.modal-subtitle {
  font-size: 12.5px;
  color: var(--text-secondary);
}

.btn-close-modal {
  width: 34px;
  height: 34px;
  border-radius: var(--radius-sm);
  background: var(--bg-surface-elevated);
  border: 1px solid var(--border-light);
  color: var(--text-secondary);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: var(--transition-fast);
  flex-shrink: 0;
}

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

.btn-close-modal:active {
  transform: scale(0.9);
}

.btn-close-modal svg {
  width: 18px;
  height: 18px;
  stroke: currentColor;
  stroke-width: 2.2;
}

/* Modal Form Groups */
.form-group {
  display: flex;
  flex-direction: column;
  gap: 6px;
  margin-bottom: 16px;
}

.form-label {
  font-size: 13px;
  font-weight: 600;
  color: var(--text-secondary);
}

.required-star {
  color: var(--danger);
}

.form-input, .form-textarea, .form-select {
  width: 100%;
  background: var(--bg-surface-elevated);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 11px 14px;
  font-size: 14.5px;
  color: var(--text-primary);
  font-family: inherit;
  outline: none;
  transition: var(--transition-fast);
}

.form-input:focus, .form-textarea:focus, .form-select:focus {
  border-color: var(--primary);
  box-shadow: 0 0 0 3px var(--primary-soft);
  background: var(--bg-surface);
}

.form-textarea {
  min-height: 85px;
  resize: vertical;
}

.form-row-2 {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
}

/* All Day Toggle */
.all-day-checkbox-row {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 13.5px;
  font-weight: 600;
  color: var(--text-primary);
  cursor: pointer;
  user-select: none;
  margin-bottom: 16px;
}

.all-day-checkbox-row input[type="checkbox"] {
  width: 18px;
  height: 18px;
  accent-color: var(--primary);
  cursor: pointer;
}

/* Color Palette Picker */
.color-picker-grid {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 4px 0;
  flex-wrap: wrap;
}

.color-circle-btn {
  width: 32px;
  height: 32px;
  border-radius: 50%;
  border: 2px solid transparent;
  cursor: pointer;
  transition: var(--transition-fast);
  position: relative;
  outline: none;
  display: inline-flex;
  align-items: center;
  justify-content: center;
}

.color-circle-btn:hover {
  transform: scale(1.15);
}

.color-circle-btn.active {
  border-color: #FFFFFF;
  box-shadow: 0 0 0 2px var(--primary), 0 4px 12px rgba(0, 0, 0, 0.3);
  transform: scale(1.15);
}

.color-circle-btn.active::after {
  content: '';
  width: 6px;
  height: 6px;
  background: #FFFFFF;
  border-radius: 50%;
}

/* Modal Actions */
.modal-actions {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: 10px;
  margin-top: 24px;
}

.btn-secondary {
  padding: 10px 18px;
  background: var(--bg-surface-elevated);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  color: var(--text-primary);
  font-size: 14px;
  font-weight: 600;
  cursor: pointer;
  transition: var(--transition-fast);
}

.btn-secondary:hover {
  background: var(--bg-btn-icon-hover);
}

.btn-secondary:active {
  transform: scale(0.96);
}

.btn-danger {
  padding: 10px 18px;
  background: var(--danger-soft);
  border: 1px solid rgba(239, 68, 68, 0.3);
  border-radius: var(--radius-md);
  color: var(--danger);
  font-size: 14px;
  font-weight: 600;
  cursor: pointer;
  transition: var(--transition-fast);
  display: inline-flex;
  align-items: center;
  gap: 6px;
  margin-right: auto;
}

.btn-danger:hover {
  background: var(--danger);
  color: #FFFFFF;
}

.btn-danger:active {
  transform: scale(0.96);
}

.btn-save-modal {
  width: auto !important;
  padding: 10px 22px !important;
}

/* 7. Search Command Palette Overlay */
.search-modal-card {
  max-width: 580px;
  padding: 0;
  overflow: hidden;
}

.search-input-header {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 16px 20px;
  border-bottom: 1px solid var(--border);
  background: var(--bg-surface-elevated);
}

.search-input-header svg {
  width: 20px;
  height: 20px;
  stroke: var(--text-secondary);
  flex-shrink: 0;
}

.search-main-input {
  width: 100%;
  background: transparent;
  border: none;
  font-size: 16px;
  font-weight: 600;
  color: var(--text-primary);
  font-family: inherit;
  outline: none;
}

.search-results-list {
  max-height: 380px;
  overflow-y: auto;
  padding: 10px 14px;
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.search-result-item {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 12px 14px;
  border-radius: var(--radius-md);
  background: var(--bg-surface);
  border: 1px solid transparent;
  cursor: pointer;
  transition: var(--transition-fast);
}

.search-result-item:hover {
  background: var(--bg-surface-elevated);
  border-color: var(--border);
  transform: translateX(3px);
}

.search-result-item:active {
  transform: scale(0.98);
}

.search-result-info {
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.search-result-title {
  font-size: 14.5px;
  font-weight: 700;
  color: var(--text-primary);
  display: flex;
  align-items: center;
  gap: 8px;
}

.search-result-date {
  font-size: 12.5px;
  color: var(--text-secondary);
}

.search-empty-text {
  text-align: center;
  padding: 30px;
  color: var(--text-secondary);
  font-size: 14px;
}

/* 8. Date Picker Jump Modal */
.date-picker-modal-card {
  max-width: 420px;
}

.year-stepper-group {
  display: flex;
  align-items: center;
  gap: 12px;
}

.date-picker-year-text {
  font-size: 18px;
  font-weight: 800;
}

.year-month-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 8px;
  margin-top: 12px;
}

.grid-choice-btn {
  padding: 11px 6px;
  border-radius: var(--radius-md);
  background: var(--bg-surface-elevated);
  border: 1px solid var(--border);
  color: var(--text-primary);
  font-size: 13.5px;
  font-weight: 600;
  cursor: pointer;
  text-align: center;
  transition: var(--transition-fast);
}

.grid-choice-btn:hover {
  background: var(--primary-soft);
  border-color: var(--primary);
  color: var(--primary);
}

.grid-choice-btn:active {
  transform: scale(0.94);
}

.grid-choice-btn.active {
  background: var(--primary-gradient);
  color: #FFFFFF;
  border-color: var(--primary);
}

/* 9. Settings Modal */
.settings-modal-card {
  max-width: 480px;
}

.setting-item-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 14px 0;
  border-bottom: 1px solid var(--border);
}

.setting-item-info {
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.setting-title {
  font-size: 14.5px;
  font-weight: 700;
  color: var(--text-primary);
}

.setting-desc {
  font-size: 12.5px;
  color: var(--text-secondary);
}

.settings-section-divider {
  margin-top: 20px;
  padding-top: 6px;
}

/* Switch Toggle */
.switch {
  position: relative;
  display: inline-block;
  width: 48px;
  height: 28px;
  flex-shrink: 0;
}

.switch input {
  opacity: 0;
  width: 0;
  height: 0;
}

.slider {
  position: absolute;
  cursor: pointer;
  inset: 0;
  background-color: var(--bg-btn-icon-active);
  border: 1px solid var(--border);
  transition: .28s cubic-bezier(0.4, 0, 0.2, 1);
  border-radius: 28px;
}

.slider:before {
  position: absolute;
  content: "";
  height: 20px;
  width: 20px;
  left: 3px;
  bottom: 3px;
  background-color: #FFFFFF;
  transition: .28s cubic-bezier(0.4, 0, 0.2, 1);
  border-radius: 50%;
  box-shadow: 0 2px 5px rgba(0, 0, 0, 0.2);
}

input:checked + .slider {
  background-color: var(--primary);
  border-color: var(--primary);
}

input:checked + .slider:before {
  transform: translateX(20px);
}

/* Settings Action Buttons */
.data-mgmt-btns {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 10px;
  margin-top: 14px;
}

.data-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  padding: 10px 14px;
}

.data-btn svg {
  width: 16px;
  height: 16px;
}

.btn-clear-all {
  width: 100%;
  margin-top: 16px;
  justify-content: center;
}

/* Confirm Deletion */
.confirm-modal-card {
  max-width: 400px;
}

.confirm-modal-msg {
  color: var(--text-secondary);
  font-size: 14px;
  line-height: 1.5;
  margin-bottom: 20px;
}

/* 10. Toast Notification System */
.toast-container {
  position: fixed;
  bottom: 24px;
  right: 24px;
  z-index: 2000;
  display: flex;
  flex-direction: column;
  gap: 8px;
  pointer-events: none;
}

.toast-msg {
  background: var(--text-primary);
  color: var(--bg-body);
  padding: 12px 20px;
  border-radius: var(--radius-md);
  font-size: 13.5px;
  font-weight: 600;
  box-shadow: var(--shadow-lg);
  display: flex;
  align-items: center;
  gap: 8px;
  animation: toastSlideUp 0.3s cubic-bezier(0.34, 1.56, 0.64, 1) forwards;
  pointer-events: auto;
}

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

/* 11. Mobile Bottom Navigation & Floating Action Button (FAB) */
.mobile-bottom-nav {
  display: none;
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  background: var(--bg-bottom-nav);
  border-top: 1px solid var(--border-header);
  backdrop-filter: blur(28px);
  -webkit-backdrop-filter: blur(28px);
  padding: 8px 16px calc(8px + env(safe-area-inset-bottom, 12px)) 16px;
  z-index: 90;
  justify-content: space-around;
  align-items: center;
  box-shadow: 0 -4px 24px rgba(0, 0, 0, 0.12);
}

.bottom-nav-item {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 3px;
  background: transparent;
  border: none;
  color: var(--text-secondary);
  font-size: 11px;
  font-weight: 600;
  font-family: inherit;
  cursor: pointer;
  padding: 6px 14px;
  border-radius: var(--radius-md);
  transition: var(--transition-fast);
  user-select: none;
}

.bottom-nav-item:active {
  transform: scale(0.92);
  background: var(--bg-surface-elevated);
}

.bottom-nav-item.active {
  color: var(--primary);
}

.bottom-nav-item svg {
  width: 22px;
  height: 22px;
  stroke: currentColor;
  stroke-width: 2;
}

.mobile-fab-btn {
  display: none;
  position: fixed;
  bottom: calc(76px + env(safe-area-inset-bottom, 12px));
  right: 18px;
  width: 56px;
  height: 56px;
  border-radius: 50%;
  background: var(--primary-gradient);
  color: #FFFFFF;
  border: none;
  box-shadow: 0 8px 24px var(--primary-glow);
  align-items: center;
  justify-content: center;
  z-index: 95;
  cursor: pointer;
  transition: transform 0.18s cubic-bezier(0.34, 1.56, 0.64, 1), box-shadow 0.18s ease;
}

.mobile-fab-btn svg {
  width: 28px;
  height: 28px;
  stroke: #FFFFFF;
  stroke-width: 2.5;
}

.mobile-fab-btn:hover {
  transform: scale(1.06);
}

.mobile-fab-btn:active {
  transform: scale(0.92);
}

/* 12. Ultra Responsive Device Breakpoints */

/* Tablet Optimization (769px to 1024px) */
@media (max-width: 1024px) and (min-width: 769px) {
  .calendar-main-layout {
    grid-template-columns: 1fr 320px;
    gap: 16px;
    padding: 8px 16px 30px 16px;
  }

  .btn-create-header .btn-create-text {
    display: none;
  }

  .btn-create-header {
    padding: 0 10px;
  }

  .day-cell {
    min-height: 92px;
    padding: 6px 6px;
  }

  .solar-num {
    font-size: 14px;
  }

  .event-bar-pill {
    font-size: 10px;
    padding: 1px 4px;
  }
}

/* Tablet & Mobile Breakpoint (<= 900px) */
@media (max-width: 900px) {
  .calendar-main-layout {
    grid-template-columns: 1fr;
    padding-bottom: 100px;
  }

  .calendar-side-panel {
    position: static;
    margin-top: 6px;
  }

  .shortcuts-card {
    display: none;
  }
}

/* Mobile Devices (<= 768px) */
@media (max-width: 768px) {
  .calendar-header-container {
    padding: calc(8px + env(safe-area-inset-top, 0px)) 12px 6px 12px;
  }

  .calendar-header-pill {
    padding: 5px 8px;
    border-radius: var(--radius-lg);
    gap: 6px;
  }

  .today-pill-btn .kbd-hint,
  .search-kbd-badge,
  .btn-create-header {
    display: none !important;
  }

  .btn-icon {
    width: 38px;
    height: 38px;
    border-radius: 12px;
  }

  .calendar-main-layout {
    padding: 6px 12px 90px 12px;
    gap: 14px;
  }

  .calendar-view-card {
    padding: 12px 10px;
    border-radius: var(--radius-lg);
  }

  .weekday-col {
    font-size: 11.5px;
    padding: 4px 0;
  }

  .day-cell {
    min-height: 64px;
    padding: 4px 4px;
    border-radius: 10px;
  }

  .solar-num {
    font-size: 13px;
  }

  .lunar-num {
    font-size: 9px;
  }

  /* Switch full pills to smart dots on mobile for ultra-clean grid */
  .cell-events-list {
    display: none;
  }

  .mobile-dots-row {
    display: flex;
  }

  .btn-quick-add {
    display: none !important;
  }

  .mobile-bottom-nav {
    display: flex;
  }

  .mobile-fab-btn {
    display: flex;
  }

  .side-panel-card {
    border-radius: var(--radius-lg);
    padding: 18px 16px;
  }

  .selected-date-title {
    font-size: 17px;
  }

  .side-date-badge-box {
    width: 48px;
    height: 50px;
  }

  .side-badge-day {
    font-size: 19px;
  }

  .toast-container {
    bottom: calc(82px + env(safe-area-inset-bottom, 12px));
    right: 16px;
    left: 16px;
    align-items: center;
  }

  /* Bottom sheet modal styling for mobile */
  .modal-overlay {
    align-items: flex-end;
    padding: 0;
  }

  .modal-card {
    max-width: 100%;
    border-bottom-left-radius: 0;
    border-bottom-right-radius: 0;
    border-top-left-radius: 24px;
    border-top-right-radius: 24px;
    padding: 14px 18px calc(24px + env(safe-area-inset-bottom, 12px)) 18px;
    transform: translateY(100%);
    max-height: 88vh;
  }

  .modal-drag-handle {
    display: block;
    width: 38px;
    height: 4px;
    border-radius: 99px;
    background: var(--border);
    margin: 0 auto 14px auto;
  }

  .modal-overlay.active .modal-card {
    transform: translateY(0);
  }
}

/* Small / Compact Mobile (<= 480px) */
@media (max-width: 480px) {
  .calendar-header-pill {
    padding: 4px 6px;
    gap: 4px;
  }

  .month-title-btn {
    font-size: 13px;
    padding: 4px 6px;
  }

  .btn-icon {
    width: 35px;
    height: 35px;
  }

  .today-pill-btn {
    padding: 0 8px;
    height: 35px;
    font-size: 12px;
  }

  .day-cell {
    min-height: 56px;
    padding: 3px 2px;
    border-radius: 8px;
  }

  .calendar-view-card {
    padding: 10px 6px;
    border-radius: 16px;
  }
}