/* Custom CSS for Class Calendar SPA */
:root {
  --font-sans: 'Inter', 'Noto Sans JP', sans-serif;
  --font-logo: 'Outfit', 'Noto Sans JP', sans-serif;

  /* Theme Colors - Google Material-like */
  --primary-color: #1a73e8;       /* Google Blue */
  --primary-hover: #1557b0;
  --bg-primary: #ffffff;
  --bg-secondary: #f8f9fa;
  --bg-hover: #f1f3f4;
  --border-color: #dadce0;
  --text-primary: #3c4043;
  --text-secondary: #5f6368;
  --text-muted: #80868b;
  --shadow-sm: 0 1px 2px 0 rgba(60,64,67,0.3), 0 1px 3px 1px rgba(60,64,67,0.15);
  --shadow-md: 0 4px 16px rgba(0,0,0,0.1);
  --shadow-lg: 0 12px 36px rgba(0,0,0,0.15);
  --radius-sm: 4px;
  --radius-md: 8px;
  --radius-lg: 24px;
  --transition-fast: 0.15s ease;
  --transition-normal: 0.25s ease;

  /* Category colors */
  --color-class: #3b82f6;     /* Blue */
  --color-school: #10b981;    /* Green */
  --color-exam: #ef4444;      /* Red */
  --color-club: #f59e0b;      /* Yellow/Orange */
  --color-personal: #8b5cf6;  /* Purple */

  /* Role Badges */
  --role-admin-bg: #fee2e2;
  --role-admin-text: #991b1b;
  --role-admin-border: #fca5a5;

  --role-teacher-bg: #fef3c7;
  --role-teacher-text: #92400e;
  --role-teacher-border: #fcd34d;

  --role-student-bg: #dcfce7;
  --role-student-text: #166534;
  --role-student-border: #86efac;
}

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

body {
  font-family: var(--font-sans);
  background-color: var(--bg-primary);
  color: var(--text-primary);
  height: 100vh;
  overflow: hidden;
  -webkit-font-smoothing: antialiased;
}

/* Common Buttons & Inputs */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-family: inherit;
  font-size: 14px;
  font-weight: 500;
  border-radius: var(--radius-sm);
  padding: 8px 16px;
  border: 1px solid transparent;
  cursor: pointer;
  transition: background-color var(--transition-fast), border-color var(--transition-fast), box-shadow var(--transition-fast);
}

.btn-primary {
  background-color: var(--primary-color);
  color: white;
}

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

.btn-secondary {
  background-color: white;
  color: var(--text-primary);
  border-color: var(--border-color);
}

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

.btn-today {
  border-radius: 4px;
  padding: 6px 12px;
  font-size: 14px;
  margin: 0 12px;
}

.icon-btn {
  background: none;
  border: none;
  cursor: pointer;
  border-radius: 50%;
  width: 36px;
  height: 36px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-secondary);
  transition: background-color var(--transition-fast);
}

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

.icon-btn.text-danger:hover {
  background-color: #fee2e2;
  color: #ef4444;
}

/* App Container Layout */
.app-container {
  display: flex;
  flex-direction: column;
  height: 100vh;
}

/* Top Header */
.app-header {
  height: 64px;
  border-bottom: 1px solid var(--border-color);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 16px;
  background-color: white;
  z-index: 10;
}

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

.menu-btn {
  cursor: pointer;
  padding: 8px;
  border-radius: 50%;
  margin-right: 8px;
  color: var(--text-secondary);
}

.menu-btn:hover {
  background-color: var(--bg-hover);
}

.logo-container {
  display: flex;
  align-items: center;
  margin-right: 20px;
}

.logo-icon {
  color: var(--primary-color);
  font-size: 28px !important;
  margin-right: 8px;
}

.logo-text {
  font-family: var(--font-logo);
  font-size: 22px;
  font-weight: 500;
  color: #5f6368;
  letter-spacing: -0.5px;
}

.nav-arrows {
  display: flex;
  align-items: center;
  margin-right: 16px;
}

.nav-arrow {
  background: none;
  border: none;
  border-radius: 50%;
  width: 32px;
  height: 32px;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  color: var(--text-primary);
  margin: 0 2px;
}

.nav-arrow:hover {
  background-color: var(--bg-hover);
}

.current-date-title {
  font-size: 20px;
  font-weight: 400;
  color: var(--text-primary);
  min-width: 140px;
}

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

/* View Switcher Tabs */
.view-tabs {
  display: flex;
  background-color: var(--bg-secondary);
  padding: 4px;
  border-radius: var(--radius-md);
  border: 1px solid var(--border-color);
}

.view-tab {
  border: none;
  background: none;
  padding: 6px 16px;
  font-size: 13px;
  font-weight: 500;
  border-radius: 6px;
  cursor: pointer;
  color: var(--text-secondary);
  transition: background-color var(--transition-fast), color var(--transition-fast);
}

.view-tab.active {
  background-color: white;
  color: var(--primary-color);
  box-shadow: 0 1px 3px rgba(0,0,0,0.1);
}

.view-tab:hover:not(.active) {
  color: var(--text-primary);
}

/* Role Simulator Selector */
.role-simulator {
  display: flex;
  align-items: center;
  background-color: #f1f3f4;
  padding: 6px 12px;
  border-radius: var(--radius-lg);
  border: 1px solid var(--border-color);
  gap: 8px;
}

.role-selector-label {
  display: flex;
  align-items: center;
  font-size: 12px;
  color: var(--text-secondary);
  font-weight: 500;
  gap: 4px;
}

.role-select {
  border: none;
  background: none;
  font-family: inherit;
  font-size: 13px;
  font-weight: 600;
  color: var(--text-primary);
  cursor: pointer;
  outline: none;
  padding-right: 4px;
}

.role-select optgroup {
  font-weight: 500;
}

.role-badge {
  font-size: 11px;
  font-weight: 700;
  padding: 2px 8px;
  border-radius: 10px;
  border: 1px solid transparent;
  text-transform: uppercase;
}

.badge-admin {
  background-color: var(--role-admin-bg);
  color: var(--role-admin-text);
  border-color: var(--role-admin-border);
}

.badge-teacher {
  background-color: var(--role-teacher-bg);
  color: var(--role-teacher-text);
  border-color: var(--role-teacher-border);
}

.badge-student {
  background-color: var(--role-student-bg);
  color: var(--role-student-text);
  border-color: var(--role-student-border);
}

/* Main Layout Grid */
.main-layout {
  display: flex;
  flex: 1;
  overflow: hidden;
}

/* Sidebar */
.sidebar {
  width: 280px;
  border-right: 1px solid var(--border-color);
  padding: 16px;
  display: flex;
  flex-direction: column;
  gap: 24px;
  overflow-y: auto;
  background-color: white;
  transition: width var(--transition-normal);
}

.sidebar.collapsed {
  width: 0;
  padding: 0;
  overflow: hidden;
  border-right: none;
}

/* Create Button */
.btn-create {
  border-radius: var(--radius-lg);
  padding: 12px 24px 12px 18px;
  background-color: white;
  color: var(--text-primary);
  box-shadow: var(--shadow-sm);
  align-self: flex-start;
  font-weight: 500;
  font-size: 14px;
  border: 1px solid #e0e0e0;
  gap: 12px;
  transition: box-shadow 0.2s, background-color 0.2s;
}

.btn-create:hover {
  background-color: var(--bg-hover);
  box-shadow: 0 4px 10px rgba(0,0,0,0.15);
}

.btn-create span.material-icons-outlined {
  font-size: 24px;
  color: #ea4335; /* Google add icon plus color red */
}

/* Mini Calendar Widget */
.mini-calendar {
  display: flex;
  flex-direction: column;
}

.mini-cal-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 0 8px;
  margin-bottom: 8px;
}

.mini-cal-title {
  font-size: 14px;
  font-weight: 500;
  color: var(--text-primary);
}

.mini-cal-nav {
  display: flex;
  gap: 4px;
}

.mini-nav-arrow {
  background: none;
  border: none;
  width: 24px;
  height: 24px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  color: var(--text-secondary);
}

.mini-nav-arrow:hover {
  background-color: var(--bg-hover);
}

.mini-cal-days-header {
  display: grid;
  grid-template-columns: repeat(7, 1fr);
  text-align: center;
  font-size: 11px;
  font-weight: 500;
  color: var(--text-muted);
  margin-bottom: 4px;
}

.mini-cal-days-grid {
  display: grid;
  grid-template-columns: repeat(7, 1fr);
  row-gap: 2px;
}

.mini-day {
  aspect-ratio: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 12px;
  cursor: pointer;
  border-radius: 50%;
  color: var(--text-primary);
  position: relative;
  transition: background-color var(--transition-fast);
}

.mini-day:hover {
  background-color: var(--bg-hover);
}

.mini-day.other-month {
  color: var(--text-muted);
}

.mini-day.selected-day {
  background-color: #d2e3fc;
  color: var(--primary-color);
  font-weight: 600;
}

.mini-day.today {
  background-color: var(--primary-color);
  color: white;
  font-weight: 600;
}

.mini-day.has-event::after {
  content: '';
  position: absolute;
  bottom: 3px;
  width: 4px;
  height: 4px;
  border-radius: 50%;
  background-color: var(--text-muted);
}

.mini-day.today.has-event::after {
  background-color: white;
}

/* Sidebar Section Headers */
.sidebar-section-title {
  font-size: 12px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.8px;
  color: var(--text-secondary);
  margin-bottom: 12px;
}

/* Checkbox and filter items */
.filter-options {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.filter-item {
  display: flex;
  align-items: center;
  gap: 10px;
  cursor: pointer;
  font-size: 13px;
  color: var(--text-primary);
}

.filter-item input[type="checkbox"] {
  display: none;
}

.checkbox-custom {
  width: 16px;
  height: 16px;
  border-radius: 4px;
  border: 2px solid var(--border-color);
  display: inline-block;
  position: relative;
  transition: background-color var(--transition-fast), border-color var(--transition-fast);
}

.filter-item input[type="checkbox"]:checked + .checkbox-custom::after {
  content: '✓';
  color: white;
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  font-size: 11px;
  font-weight: bold;
}

/* Assign filter colors */
.class-color { border-color: var(--color-class); }
.filter-item input[type="checkbox"]:checked + .class-color { background-color: var(--color-class); border-color: var(--color-class); }

.specific-color { border-color: var(--color-club); }
.filter-item input[type="checkbox"]:checked + .specific-color { background-color: var(--color-club); border-color: var(--color-club); }

.personal-color { border-color: var(--color-personal); }
.filter-item input[type="checkbox"]:checked + .personal-color { background-color: var(--color-personal); border-color: var(--color-personal); }

/* Member List */
.member-list {
  display: flex;
  flex-direction: column;
  gap: 8px;
  max-height: 180px;
  overflow-y: auto;
  padding-right: 4px;
}

.member-item {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 6px 8px;
  border-radius: var(--radius-sm);
  background-color: var(--bg-secondary);
  font-size: 12px;
  border: 1px solid transparent;
}

.member-item.current-user {
  border-color: #3b82f644;
  background-color: #eff6ff;
  font-weight: 500;
}

.member-info {
  display: flex;
  align-items: center;
  gap: 8px;
}

.member-avatar {
  width: 24px;
  height: 24px;
  border-radius: 50%;
  background-color: var(--border-color);
  color: var(--text-secondary);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 11px;
  font-weight: bold;
}

.student-avatar { background-color: #e0f2fe; color: #0369a1; }
.teacher-avatar { background-color: #fef3c7; color: #b45309; }
.admin-avatar { background-color: #fee2e2; color: #b91c1c; }

.member-role-label {
  font-size: 10px;
  color: var(--text-muted);
  background-color: white;
  border: 1px solid var(--border-color);
  padding: 1px 4px;
  border-radius: 4px;
}

/* Calendar Viewports */
.calendar-viewport {
  flex: 1;
  display: flex;
  flex-direction: column;
  overflow: hidden;
  background-color: white;
}

.calendar-view {
  flex: 1;
  display: flex;
  flex-direction: column;
  overflow: hidden;
}

.hidden {
  display: none !important;
}

/* --- Month View --- */
.weekdays-bar {
  display: grid;
  grid-template-columns: repeat(7, 1fr);
  border-bottom: 1px solid var(--border-color);
  text-align: center;
  font-size: 11px;
  font-weight: 600;
  color: var(--text-secondary);
  height: 28px;
  line-height: 28px;
}

.day-label.sun { color: #d93025; }
.day-label.sat { color: var(--primary-color); }

.month-view {
  overflow-y: auto;
}

.calendar-grid {
  display: grid;
  grid-template-columns: repeat(7, 1fr);
  grid-template-rows: repeat(6, minmax(85px, 1fr));
  flex: 1;
  border-left: 1px solid var(--border-color);
  background-color: var(--border-color);
  gap: 1px; /* border simulator */
  min-height: 510px; /* 85px * 6 rows */
}

.calendar-cell {
  background-color: white;
  display: flex;
  flex-direction: column;
  padding: 4px;
  overflow: hidden;
  position: relative;
  min-height: 0;
}

.calendar-cell.other-month {
  background-color: var(--bg-secondary);
}

.calendar-cell.other-month .cell-day-num {
  color: var(--text-muted);
}

.cell-header {
  display: flex;
  justify-content: center;
  align-items: center;
  margin-bottom: 4px;
}

.cell-day-num {
  width: 24px;
  height: 24px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 12px;
  font-weight: 500;
  color: var(--text-primary);
  cursor: pointer;
  transition: background-color var(--transition-fast);
}

.cell-day-num:hover {
  background-color: var(--bg-hover);
}

.calendar-cell.today .cell-day-num {
  background-color: var(--primary-color);
  color: white;
  font-weight: bold;
}

.cell-events-list {
  display: flex;
  flex-direction: column;
  gap: 2px;
  overflow-y: auto;
  flex: 1;
  padding-bottom: 4px;
}

/* Event Capsule (Month View) */
.event-capsule {
  font-size: 11px;
  padding: 3px 6px;
  border-radius: 3px;
  cursor: pointer;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  display: flex;
  align-items: center;
  gap: 4px;
  font-weight: 500;
  transition: filter var(--transition-fast), transform var(--transition-fast);
}

.event-capsule:hover {
  filter: brightness(0.95);
  transform: translateY(-0.5px);
}

.event-capsule.visibility-specific::before {
  content: 'group';
  font-family: 'Material Icons Outlined';
  font-size: 10px;
}

.event-capsule.visibility-private::before {
  content: 'lock';
  font-family: 'Material Icons Outlined';
  font-size: 10px;
}

/* Category Colors Mapping */
.event-class { background-color: #eff6ff; color: #1e40af; border-left: 3px solid var(--color-class); }
.event-school { background-color: #ecfdf5; color: #065f46; border-left: 3px solid var(--color-school); }
.event-exam { background-color: #fef2f2; color: #991b1b; border-left: 3px solid var(--color-exam); }
.event-club { background-color: #fffbeb; color: #92400e; border-left: 3px solid var(--color-club); }
.event-personal { background-color: #faf5ff; color: #5b21b6; border-left: 3px solid var(--color-personal); }

/* --- Week View --- */
.week-header-wrapper {
  display: flex;
  border-bottom: 1px solid var(--border-color);
  background-color: white;
}

.timezone-gutter {
  width: 60px;
  border-right: 1px solid var(--border-color);
  display: flex;
  align-items: flex-end;
  justify-content: center;
  font-size: 10px;
  color: var(--text-muted);
  padding-bottom: 6px;
}

.week-header-days {
  flex: 1;
  display: grid;
  grid-template-columns: repeat(7, 1fr);
}

.week-header-cell {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 8px 0;
  border-right: 1px solid var(--border-color);
}

.week-header-cell.today .week-day-num {
  background-color: var(--primary-color);
  color: white;
  font-weight: bold;
}

.week-day-name {
  font-size: 11px;
  font-weight: 500;
  color: var(--text-secondary);
}

.week-day-num {
  width: 30px;
  height: 30px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 16px;
  margin-top: 4px;
}

.week-grid-scroll {
  flex: 1;
  overflow-y: scroll;
}

.week-grid-container {
  display: flex;
  height: 1008px; /* 42px * 24 hours */
  position: relative;
}

.hour-gutter {
  width: 60px;
  border-right: 1px solid var(--border-color);
  background-color: var(--bg-secondary);
  display: grid;
  grid-template-rows: repeat(24, 42px);
  user-select: none;
}

.hour-cell {
  display: flex;
  align-items: flex-start;
  justify-content: flex-end;
  padding-right: 8px;
  font-size: 10px;
  color: var(--text-muted);
  transform: translateY(-6px);
}

.week-columns-container {
  flex: 1;
  display: grid;
  grid-template-columns: repeat(7, 1fr);
  position: relative;
  background-image: linear-gradient(var(--border-color) 1px, transparent 1px);
  background-size: 100% 42px; /* Hourly grid lines */
}

.week-column {
  border-right: 1px solid var(--border-color);
  position: relative;
  height: 100%;
}

/* Timed event blocks in Week view */
.event-block-week {
  position: absolute;
  left: 2px;
  right: 4px;
  border-radius: 4px;
  padding: 4px 6px;
  font-size: 11px;
  line-height: 1.2;
  cursor: pointer;
  box-shadow: 0 1px 3px rgba(0,0,0,0.1);
  overflow: hidden;
  display: flex;
  flex-direction: column;
  gap: 2px;
  transition: transform var(--transition-fast), box-shadow var(--transition-fast);
}

.event-block-week:hover {
  transform: scale(1.01);
  box-shadow: 0 4px 8px rgba(0,0,0,0.15);
  z-index: 5;
}

.event-block-week-title {
  font-weight: 600;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.event-block-week-time {
  font-size: 10px;
  color: inherit;
  opacity: 0.8;
}

/* --- Agenda View --- */
.agenda-view {
  padding: 24px;
  overflow-y: auto;
}

.agenda-header {
  font-size: 18px;
  font-weight: 500;
  color: var(--text-primary);
  margin-bottom: 20px;
  border-bottom: 2px solid var(--bg-hover);
  padding-bottom: 10px;
}

.agenda-list {
  display: flex;
  flex-direction: column;
  gap: 16px;
  max-width: 800px;
}

.agenda-date-group {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.agenda-date-header {
  font-size: 13px;
  font-weight: 600;
  color: var(--text-muted);
  border-bottom: 1px solid var(--border-color);
  padding-bottom: 4px;
}

.agenda-item {
  display: flex;
  align-items: center;
  padding: 12px 16px;
  border-radius: var(--radius-md);
  border: 1px solid var(--border-color);
  background-color: white;
  gap: 16px;
  cursor: pointer;
  transition: transform var(--transition-fast), box-shadow var(--transition-fast);
}

.agenda-item:hover {
  transform: translateY(-1px);
  box-shadow: 0 2px 8px rgba(0,0,0,0.08);
}

.agenda-item-time {
  width: 90px;
  font-size: 13px;
  color: var(--text-secondary);
  font-weight: 500;
}

.agenda-category-badge {
  width: 12px;
  height: 12px;
  border-radius: 50%;
  flex-shrink: 0;
}

.agenda-item-title {
  flex-grow: 1;
  font-weight: 500;
  font-size: 14px;
  color: var(--text-primary);
  display: flex;
  align-items: center;
  gap: 8px;
}

.agenda-creator-badge {
  font-size: 10px;
  background-color: var(--bg-hover);
  color: var(--text-secondary);
  padding: 2px 6px;
  border-radius: 4px;
}

.agenda-item-visibility {
  margin-left: auto;
  display: flex;
  align-items: center;
  color: var(--text-muted);
}

/* Modals & Dialogs Setup */
.dialog-backdrop {
  position: fixed;
  top: 0;
  left: 0;
  width: 100vw;
  height: 100vh;
  background-color: rgba(60, 64, 67, 0.3);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 100;
  animation: fadeIn var(--transition-fast) ease-out;
}

.dialog {
  background-color: white;
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-lg);
  overflow: hidden;
  max-width: 95vw;
}

/* Modal animation */
@keyframes fadeIn {
  from { opacity: 0; }
  to { opacity: 1; }
}

@keyframes slideUp {
  from { transform: translateY(20px); opacity: 0; }
  to { transform: translateY(0); opacity: 1; }
}

/* --- Detail View Card/Dialog --- */
.detail-dialog {
  width: 440px;
  border: 1px solid var(--border-color);
  animation: slideUp 0.2s cubic-bezier(0.2, 0, 0, 1);
}

.detail-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 12px 16px 8px 16px;
  border-bottom: 1px solid var(--bg-hover);
}

.detail-actions-left {
  display: flex;
  align-items: center;
  gap: 8px;
}

.category-icon {
  font-size: 20px;
  color: var(--primary-color);
}

.detail-category-label {
  font-size: 12px;
  font-weight: 600;
  background-color: var(--bg-secondary);
  padding: 2px 8px;
  border-radius: 10px;
  color: var(--text-secondary);
}

.detail-actions-right {
  display: flex;
  gap: 4px;
}

.detail-body {
  padding: 20px 24px;
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.detail-title {
  font-size: 22px;
  font-weight: 500;
  color: var(--text-primary);
  margin-bottom: 4px;
  word-break: break-word;
}

.detail-info-row {
  display: flex;
  align-items: flex-start;
  gap: 16px;
  color: var(--text-secondary);
  font-size: 14px;
}

.info-icon {
  font-size: 20px !important;
  color: var(--text-muted);
  margin-top: 1px;
}

.info-content {
  flex: 1;
}

.visibility-status-badge {
  font-weight: 600;
  color: #1e3a8a;
  background-color: #dbeafe;
  padding: 2px 8px;
  border-radius: 4px;
  font-size: 11px;
  display: inline-block;
  margin-right: 6px;
}

.shared-users-summary {
  font-size: 12px;
  color: var(--text-muted);
}

.detail-shared-title {
  font-weight: 500;
  font-size: 12px;
  margin-bottom: 6px;
  color: var(--text-primary);
}

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

.shared-chip {
  display: flex;
  align-items: center;
  gap: 4px;
  background-color: var(--bg-secondary);
  border: 1px solid var(--border-color);
  padding: 2px 8px;
  border-radius: 12px;
  font-size: 11px;
}

.detail-creator-name {
  font-weight: 500;
  color: var(--text-primary);
}

.text-block-row {
  border-top: 1px solid #f1f3f4;
  padding-top: 14px;
}

.detail-description {
  white-space: pre-wrap;
  line-height: 1.5;
  color: var(--text-primary);
  word-break: break-word;
}

/* --- Edit Modal Dialog --- */
.edit-modal {
  width: 480px;
  animation: slideUp 0.25s cubic-bezier(0.2, 0, 0, 1);
}

.modal-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 16px 24px;
  border-bottom: 1px solid var(--border-color);
}

.modal-header h3 {
  font-size: 16px;
  font-weight: 500;
  color: var(--text-primary);
}

.modal-form {
  padding: 0;
  display: flex;
  flex-direction: column;
}

.form-group {
  padding: 16px 24px;
}

.title-group {
  background-color: #f8f9fa;
  border-bottom: 1px solid var(--border-color);
}

.title-input {
  width: 100%;
  border: none;
  border-bottom: 2px solid transparent;
  background: none;
  font-size: 22px;
  padding: 4px 0;
  outline: none;
  font-family: inherit;
  color: var(--text-primary);
  transition: border-color var(--transition-fast);
}

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

.title-input:focus {
  border-bottom-color: var(--primary-color);
}

.form-row {
  display: flex;
  padding: 16px 24px;
  gap: 16px;
  align-items: flex-start;
}

.form-row:not(:last-child) {
  border-bottom: 1px solid #f1f3f4;
}

.form-icon {
  font-size: 20px !important;
  color: var(--text-muted);
  margin-top: 10px;
}

.form-inputs-col {
  flex: 1;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.form-label-header {
  font-size: 12px;
  font-weight: 600;
  text-transform: uppercase;
  color: var(--text-secondary);
}

.datetime-inputs {
  display: flex;
  gap: 12px;
  align-items: center;
  flex-wrap: wrap;
}

.datetime-inputs input[type="date"],
.datetime-inputs input[type="time"] {
  border: 1px solid var(--border-color);
  padding: 8px 12px;
  border-radius: var(--radius-sm);
  font-family: inherit;
  font-size: 14px;
  outline: none;
  color: var(--text-primary);
}

.datetime-inputs input[type="date"]:focus,
.datetime-inputs input[type="time"]:focus {
  border-color: var(--primary-color);
}

.time-selects {
  display: flex;
  align-items: center;
  gap: 8px;
}

.all-day-checkbox {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 13px;
  color: var(--text-secondary);
  cursor: pointer;
  margin-top: 4px;
}

.form-control {
  width: 100%;
  border: 1px solid var(--border-color);
  padding: 8px 12px;
  border-radius: var(--radius-sm);
  font-family: inherit;
  font-size: 14px;
  outline: none;
  background-color: white;
  color: var(--text-primary);
}

.form-control:focus {
  border-color: var(--primary-color);
}

textarea.form-control {
  resize: vertical;
}

/* Radio Group styling */
.radio-group {
  display: flex;
  flex-direction: column;
  gap: 8px;
  margin-top: 4px;
}

.radio-label {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 13px;
  color: var(--text-primary);
  cursor: pointer;
  user-select: none;
}

.radio-label input[type="radio"] {
  display: none;
}

.radio-custom {
  width: 18px;
  height: 18px;
  border-radius: 50%;
  border: 2px solid var(--border-color);
  display: inline-block;
  position: relative;
  transition: border-color var(--transition-fast);
}

.radio-label input[type="radio"]:checked + .radio-custom {
  border-color: var(--primary-color);
}

.radio-label input[type="radio"]:checked + .radio-custom::after {
  content: '';
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background-color: var(--primary-color);
}

/* Specific People Checkbox Grid */
.member-selector-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 8px;
  max-height: 150px;
  overflow-y: auto;
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
  padding: 10px;
  background-color: var(--bg-secondary);
}

.member-check-item {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 12px;
  cursor: pointer;
  padding: 4px;
  border-radius: 4px;
}

.member-check-item:hover {
  background-color: var(--bg-hover);
}

.member-check-item input[type="checkbox"] {
  width: 14px;
  height: 14px;
}

.form-help-text {
  font-size: 11px;
  color: var(--text-muted);
  margin-top: 2px;
}

/* Modal Footer */
.modal-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 16px 24px;
  border-top: 1px solid var(--border-color);
  background-color: #f8f9fa;
}

.creator-stamp {
  font-size: 12px;
  color: var(--text-secondary);
}

.modal-actions {
  display: flex;
  gap: 12px;
}

/* Custom Animation Utility */
.animate-fade-in {
  animation: fadeIn var(--transition-fast) ease-in-out;
}

/* Scrollbar Styles */
::-webkit-scrollbar {
  width: 8px;
  height: 8px;
}

::-webkit-scrollbar-track {
  background: transparent;
}

::-webkit-scrollbar-thumb {
  background: #dadce0;
  border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
  background: #bdc1c6;
}

/* GitHub DB Connection Styling */
.github-section {
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 12px;
  background-color: var(--bg-secondary);
  margin-bottom: 8px;
}

.github-section-header {
  margin-bottom: 8px;
}

.github-section-header .sidebar-section-title {
  margin-bottom: 0;
  display: flex;
  align-items: center;
  gap: 6px;
  color: var(--text-primary);
}

.github-settings-content {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.db-status-bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-bottom: 8px;
  border-bottom: 1px dashed var(--border-color);
}

.status-indicator {
  font-size: 11px;
  font-weight: 700;
  padding: 2px 8px;
  border-radius: 4px;
}

.status-local {
  background-color: #e2e8f0;
  color: #475569;
}

.status-connected {
  background-color: #dcfce7;
  color: #15803d;
  border: 1px solid #bbf7d0;
}

.status-error {
  background-color: #fee2e2;
  color: #b91c1c;
  border: 1px solid #fecaca;
}

.sync-spinner {
  width: 14px;
  height: 14px;
  border: 2px solid rgba(0, 0, 0, 0.1);
  border-top-color: var(--primary-color);
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
}

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

.db-status-desc {
  font-size: 11px;
  color: var(--text-secondary);
  line-height: 1.4;
}

/* User Profile & Logout Header Card */
.user-profile-card {
  display: flex;
  align-items: center;
  gap: 8px;
  background-color: var(--bg-secondary);
  border: 1px solid var(--border-color);
  padding: 4px 6px 4px 12px;
  border-radius: var(--radius-lg);
  font-size: 13px;
  color: var(--text-primary);
  font-weight: 500;
}

.user-display-name {
  max-width: 120px;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.profile-divider {
  width: 1px;
  height: 18px;
  background-color: var(--border-color);
  margin: 0 4px;
}

.logout-icon-btn {
  background: none;
  border: none;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-secondary);
  padding: 6px;
  border-radius: 50%;
  transition: background-color var(--transition-fast), color var(--transition-fast);
}

.logout-icon-btn:hover {
  background-color: #fee2e2;
  color: #ef4444;
}

/* Login Screen Overlay */
.login-overlay {
  position: fixed;
  top: 0;
  left: 0;
  width: 100vw;
  height: 100vh;
  background-color: rgba(240, 244, 248, 0.85);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 999;
  transition: opacity var(--transition-normal) ease;
}

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

.login-card {
  background-color: white;
  width: 380px;
  padding: 36px;
  border-radius: var(--radius-md);
  box-shadow: 0 10px 30px rgba(0,0,0,0.08), 0 1px 3px rgba(0,0,0,0.02);
  border: 1px solid rgba(226, 232, 240, 0.8);
  animation: slideUp 0.3s cubic-bezier(0.2, 0, 0, 1);
  display: flex;
  flex-direction: column;
  gap: 24px;
}

.login-header {
  text-align: center;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
}

.login-logo-icon {
  font-size: 42px !important;
  color: var(--primary-color);
  margin-bottom: 4px;
}

.login-header h2 {
  font-family: var(--font-logo);
  font-size: 24px;
  font-weight: 600;
  color: var(--text-primary);
}

.login-header p {
  font-size: 13px;
  color: var(--text-secondary);
}

.login-form {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.login-error-msg {
  background-color: #fee2e2;
  color: #b91c1c;
  border: 1px solid #fecaca;
  padding: 10px 14px;
  border-radius: var(--radius-sm);
  font-size: 12px;
  font-weight: 500;
  line-height: 1.4;
}

.form-group-login {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.form-group-login label {
  font-size: 11px;
  font-weight: 600;
  color: var(--text-secondary);
  text-transform: uppercase;
}

.form-group-login input {
  border: 1px solid var(--border-color);
  padding: 10px 14px;
  border-radius: var(--radius-sm);
  font-family: inherit;
  font-size: 14px;
  outline: none;
  background-color: #f8fafc;
  color: var(--text-primary);
  transition: border-color var(--transition-fast), background-color var(--transition-fast);
}

.form-group-login input:focus {
  border-color: var(--primary-color);
  background-color: white;
}

.btn-block {
  width: 100%;
  padding: 12px;
  font-size: 15px;
  font-weight: 600;
  border-radius: var(--radius-sm);
}

.login-footer {
  font-size: 11px;
  color: var(--text-muted);
  line-height: 1.5;
  text-align: center;
  border-top: 1px solid #f1f5f9;
  padding-top: 16px;
}

/* Accounts Management Modal */
.account-modal {
  width: 760px;
  animation: slideUp 0.25s cubic-bezier(0.2, 0, 0, 1);
}

.account-modal-body {
  padding: 24px;
  display: flex;
  flex-direction: column;
  gap: 20px;
  max-height: 80vh;
  overflow-y: auto;
}

.account-actions-row {
  display: flex;
  justify-content: flex-end;
}

.account-form-panel {
  background-color: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 16px;
  display: flex;
  flex-direction: column;
  gap: 12px;
  animation: fadeIn var(--transition-fast) ease;
}

.account-form-panel h4 {
  font-size: 13px;
  font-weight: 600;
  color: var(--text-primary);
  border-bottom: 1px solid var(--border-color);
  padding-bottom: 6px;
}

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

.account-form-buttons {
  display: flex;
  justify-content: flex-end;
  gap: 8px;
  margin-top: 4px;
}

/* Sidebar Specific Admin Section */
.btn-admin-accounts {
  width: 100%;
  justify-content: flex-start;
  gap: 8px;
  border-radius: var(--radius-md);
  background-color: #faf5ff;
  color: #6b21a8;
  border-color: #f3e8ff;
}

.btn-admin-accounts:hover {
  background-color: #f3e8ff;
  border-color: #e9d5ff;
}

/* Accounts Table styling */
.accounts-table-wrapper {
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
  overflow-x: auto;
  background-color: white;
}

.accounts-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 13px;
  text-align: left;
}

.accounts-table th {
  background-color: var(--bg-secondary);
  color: var(--text-secondary);
  font-weight: 600;
  padding: 12px;
  border-bottom: 1px solid var(--border-color);
}

.accounts-table td {
  padding: 10px 12px;
  border-bottom: 1px solid #f1f3f4;
  vertical-align: middle;
}

.accounts-table tr:hover td {
  background-color: var(--bg-hover);
}

.table-avatar {
  width: 28px;
  height: 28px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  font-size: 12px;
}

.action-links {
  display: flex;
  gap: 8px;
}

.action-link-btn {
  background: none;
  border: none;
  cursor: pointer;
  font-size: 12px;
  font-weight: 600;
  color: var(--primary-color);
  padding: 2px 6px;
  border-radius: 4px;
}

.action-link-btn:hover {
  background-color: var(--bg-hover);
}

.action-link-btn.text-danger {
  color: #ef4444;
}

.action-link-btn.text-danger:hover {
  background-color: #fee2e2;
}

/* Responsive collapse rules */
@media (max-width: 768px) {
  .sidebar {
    position: fixed;
    top: 64px;
    left: 0;
    bottom: 0;
    z-index: 9;
    box-shadow: 2px 0 10px rgba(0,0,0,0.1);
  }
}