/**
 * Conference Room Booking System
 * Modern SaaS Design with FullCalendar
 * Using Outfit + JetBrains Mono fonts
 */

/* ============================================
   CSS VARIABLES & THEME
   ============================================ */
:root {
  /* Brand Colors */
  --primary-50: #f0f9ff;
  --primary-100: #e0f2fe;
  --primary-200: #bae6fd;
  --primary-300: #7dd3fc;
  --primary-400: #38bdf8;
  --primary-500: #0ea5e9;
  --primary-600: #0284c7;
  --primary-700: #0369a1;
  --primary-800: #075985;
  --primary-900: #0c4a6e;

  /* Neutral */
  --gray-50: #fafafa;
  --gray-100: #f4f4f5;
  --gray-200: #e4e4e7;
  --gray-300: #d4d4d8;
  --gray-400: #a1a1aa;
  --gray-500: #71717a;
  --gray-600: #52525b;
  --gray-700: #3f3f46;
  --gray-800: #27272a;
  --gray-900: #18181b;

  /* Semantic */
  --success: #10b981;
  --success-light: #d1fae5;
  --warning: #f59e0b;
  --warning-light: #fef3c7;
  --danger: #ef4444;
  --danger-light: #fee2e2;
  --info: #6366f1;

  /* Gradients */
  --gradient-primary: linear-gradient(135deg, #0ea5e9 0%, #6366f1 100%);
  --gradient-success: linear-gradient(135deg, #10b981 0%, #059669 100%);
  --gradient-warm: linear-gradient(135deg, #f59e0b 0%, #dc2626 100%);

  /* Spacing */
  --space-1: 0.25rem;
  --space-2: 0.5rem;
  --space-3: 0.75rem;
  --space-4: 1rem;
  --space-5: 1.25rem;
  --space-6: 1.5rem;
  --space-8: 2rem;
  --space-10: 2.5rem;
  --space-12: 3rem;
  --space-16: 4rem;

  /* Border Radius */
  --radius-sm: 0.375rem;
  --radius: 0.5rem;
  --radius-md: 0.75rem;
  --radius-lg: 1rem;
  --radius-xl: 1.25rem;
  --radius-2xl: 1.5rem;
  --radius-3xl: 2rem;
  --radius-full: 9999px;

  /* Shadows */
  --shadow-sm: 0 1px 2px 0 rgb(0 0 0 / 0.05);
  --shadow: 0 1px 3px 0 rgb(0 0 0 / 0.1);
  --shadow-md: 0 4px 6px -1px rgb(0 0 0 / 0.1);
  --shadow-lg: 0 10px 15px -3px rgb(0 0 0 / 0.1);
  --shadow-xl: 0 20px 25px -5px rgb(0 0 0 / 0.1);
  --shadow-glow: 0 0 20px rgb(14 165 233 / 0.3);

  /* Transitions */
  --transition: 200ms cubic-bezier(0.4, 0, 0.2, 1);
  --transition-slow: 300ms cubic-bezier(0.4, 0, 0.2, 1);
}

/* ============================================
   RESET & BASE
   ============================================ */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  font-size: 16px;
  scroll-behavior: smooth;
}

body {
  font-family: 'Outfit', -apple-system, BlinkMacSystemFont, sans-serif;
  background: var(--gray-50);
  color: var(--gray-900);
  line-height: 1.6;
  font-weight: 400;
  min-height: 100vh;
  overflow-x: hidden;
}

/* ============================================
   AMBIENT BACKGROUND
   ============================================ */
.ambient-background {
  position: fixed;
  inset: 0;
  z-index: -1;
  overflow: hidden;
}

.gradient-orb {
  position: absolute;
  border-radius: 50%;
  filter: blur(80px);
  opacity: 0.6;
  animation: orb-float 20s ease-in-out infinite;
}

.orb-1 {
  width: 600px;
  height: 600px;
  background: radial-gradient(circle, rgba(14, 165, 233, 0.4) 0%, transparent 70%);
  top: -200px;
  right: -200px;
  animation-delay: 0s;
}

.orb-2 {
  width: 500px;
  height: 500px;
  background: radial-gradient(circle, rgba(99, 102, 241, 0.3) 0%, transparent 70%);
  bottom: -150px;
  left: -150px;
  animation-delay: -7s;
}

.orb-3 {
  width: 400px;
  height: 400px;
  background: radial-gradient(circle, rgba(16, 185, 129, 0.2) 0%, transparent 70%);
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  animation-delay: -14s;
}

@keyframes orb-float {
  0%, 100% { transform: translate(0, 0) scale(1); }
  33% { transform: translate(30px, -30px) scale(1.05); }
  66% { transform: translate(-20px, 20px) scale(0.95); }
}

.noise-overlay {
  position: absolute;
  inset: 0;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 256 256' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='noise'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23noise)'/%3E%3C/svg%3E");
  opacity: 0.03;
  pointer-events: none;
}

/* ============================================
   APP LAYOUT
   ============================================ */
.app-body {
  background: linear-gradient(180deg, var(--gray-50) 0%, var(--gray-100) 100%);
}

#app {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  position: relative;
}

/* ============================================
   NAVBAR
   ============================================ */
.navbar {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(255, 255, 255, 0.8);
  backdrop-filter: blur(20px) saturate(180%);
  border-bottom: 1px solid rgba(0, 0, 0, 0.05);
}

.navbar-inner {
  max-width: 1400px;
  margin: 0 auto;
  padding: 0 var(--space-6);
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 72px;
}

/* Brand Section */
.brand-section {
  display: flex;
  align-items: center;
  gap: var(--space-4);
}

.brand-mark {
  display: flex;
  align-items: center;
  gap: var(--space-3);
}

.brand-logo-img {
  width: 100px;
  height: auto;
  object-fit: contain;
  display: block;
}

.brand-icon {
  width: 44px;
  height: 44px;
  background: var(--gradient-primary);
  border-radius: var(--radius-lg);
  display: flex;
  align-items: center;
  justify-content: center;
  color: white;
  font-size: 22px;
  box-shadow: var(--shadow-glow);
}

.brand-text-group {
  display: flex;
  flex-direction: column;
  line-height: 1.1;
}

.brand-name {
  font-size: 1.375rem;
  font-weight: 800;
  background: var(--gradient-primary);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  letter-spacing: -0.02em;
}

.brand-tagline {
  font-size: 0.6875rem;
  font-weight: 600;
  color: var(--gray-400);
  text-transform: uppercase;
  letter-spacing: 0.1em;
}

.brand-divider {
  width: 1px;
  height: 24px;
  background: linear-gradient(180deg, transparent, var(--gray-300), transparent);
}

.product-badge {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-2) var(--space-3);
  background: var(--primary-50);
  border-radius: var(--radius-full);
  font-size: 0.8125rem;
  font-weight: 600;
  color: var(--primary-700);
}

.product-badge i {
  font-size: 16px;
}

/* Nav Actions */
.nav-actions {
  display: flex;
  align-items: center;
  gap: var(--space-3);
}

.nav-button {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-2) var(--space-4);
  border-radius: var(--radius-lg);
  font-size: 0.875rem;
  font-weight: 600;
  cursor: pointer;
  transition: all var(--transition);
  border: 1px solid transparent;
  text-decoration: none;
  white-space: nowrap;
}

.nav-button i {
  font-size: 18px;
}

.nav-button-secondary {
  background: white;
  border-color: var(--gray-200);
  color: var(--gray-700);
}

.nav-button-secondary:hover {
  background: var(--gray-50);
  border-color: var(--gray-300);
}

.nav-button-primary {
  background: var(--gradient-primary);
  color: white;
  box-shadow: var(--shadow-md);
}

.nav-button-primary:hover {
  transform: translateY(-1px);
  box-shadow: var(--shadow-lg);
}

/* Logged In State */
.auth-logged-in {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  padding: var(--space-2);
  background: white;
  border-radius: var(--radius-xl);
  border: 1px solid var(--gray-200);
  box-shadow: var(--shadow-sm);
}

.user-pill {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  padding: var(--space-2) var(--space-3);
  background: var(--gray-50);
  border-radius: var(--radius-full);
  border: 1px solid var(--gray-200);
}

.user-avatar-wrapper {
  position: relative;
}

.user-avatar {
  width: 40px;
  height: 40px;
  background: var(--gradient-primary);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: white;
  font-weight: 700;
  font-size: 1rem;
}

.user-status-dot {
  position: absolute;
  bottom: 0;
  right: 0;
  width: 12px;
  height: 12px;
  background: var(--success);
  border: 2px solid white;
  border-radius: 50%;
}

.user-info-compact {
  display: flex;
  flex-direction: column;
  line-height: 1.2;
}

.user-display-name {
  font-size: 0.875rem;
  font-weight: 700;
  color: var(--gray-900);
}

.user-role {
  font-size: 0.6875rem;
  font-weight: 600;
  color: var(--success);
}

/* Dropdown */
.nav-dropdown {
  position: relative;
}

.dropdown-trigger {
  width: 32px;
  height: 32px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--gray-100);
  border: none;
  border-radius: var(--radius-md);
  color: var(--gray-600);
  cursor: pointer;
  transition: all var(--transition);
}

.dropdown-trigger:hover {
  background: var(--gray-200);
}

.dropdown-menu {
  position: absolute;
  top: calc(100% + var(--space-2));
  right: 0;
  min-width: 180px;
  background: white;
  border-radius: var(--radius-lg);
  border: 1px solid var(--gray-200);
  box-shadow: var(--shadow-xl);
  opacity: 0;
  visibility: hidden;
  transform: translateY(-8px);
  transition: all var(--transition);
  overflow: hidden;
}

.nav-dropdown:hover .dropdown-menu {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.dropdown-item {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  padding: var(--space-3) var(--space-4);
  font-size: 0.875rem;
  color: var(--gray-700);
  cursor: pointer;
  transition: background var(--transition);
}

.dropdown-item:hover {
  background: var(--gray-50);
}

.dropdown-item i {
  font-size: 18px;
  color: var(--gray-400);
}

.dropdown-item-danger {
  color: var(--danger);
}

.dropdown-item-danger:hover {
  background: var(--danger-light);
}

.dropdown-item-danger i {
  color: var(--danger);
}

.dropdown-divider {
  height: 1px;
  background: var(--gray-200);
  margin: var(--space-1) 0;
}

/* ============================================
   MAIN CONTENT
   ============================================ */
.main-content {
  flex: 1;
  max-width: 1400px;
  width: 100%;
  margin: 0 auto;
  padding: var(--space-8) var(--space-6);
}

/* ============================================
   HERO SECTION
   ============================================ */
.hero-section {
  margin-bottom: var(--space-10);
}

.hero-content {
  text-align: center;
  margin-bottom: var(--space-10);
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-2) var(--space-4);
  background: white;
  border: 1px solid var(--gray-200);
  border-radius: var(--radius-full);
  font-size: 0.8125rem;
  font-weight: 600;
  color: var(--gray-600);
  margin-bottom: var(--space-6);
  box-shadow: var(--shadow-sm);
}

.hero-badge i {
  color: var(--primary-500);
  font-size: 16px;
}

.hero-title {
  font-size: clamp(2.5rem, 5vw, 4rem);
  font-weight: 800;
  line-height: 1.1;
  letter-spacing: -0.03em;
  color: var(--gray-900);
  margin-bottom: var(--space-4);
}

.title-gradient {
  background: var(--gradient-primary);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero-description {
  font-size: 1.125rem;
  color: var(--gray-600);
  max-width: 540px;
  margin: 0 auto;
  line-height: 1.7;
}

/* Stats Container */
.stats-container {
  display: flex;
  justify-content: center;
  gap: var(--space-4);
  flex-wrap: wrap;
}

.stat-card {
  display: flex;
  align-items: center;
  gap: var(--space-4);
  padding: var(--space-5);
  background: white;
  border-radius: var(--radius-xl);
  border: 1px solid var(--gray-200);
  box-shadow: var(--shadow-sm);
  min-width: 200px;
}

.stat-icon-wrapper {
  width: 48px;
  height: 48px;
  border-radius: var(--radius-lg);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 24px;
}

.stat-card-primary .stat-icon-wrapper {
  background: var(--primary-50);
  color: var(--primary-600);
}

.stat-card-success .stat-icon-wrapper {
  background: var(--success-light);
  color: var(--success);
}

.stat-card-info .stat-icon-wrapper {
  background: var(--primary-50);
  color: var(--primary-600);
}

.stat-content {
  display: flex;
  flex-direction: column;
}

.stat-label {
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--gray-500);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.stat-value {
  font-size: 1.25rem;
  font-weight: 800;
  color: var(--gray-900);
}

/* ============================================
   CALENDAR SECTION
   ============================================ */
.calendar-section {
  margin-bottom: var(--space-10);
}

.calendar-card {
  background: white;
  border-radius: var(--radius-2xl);
  border: 1px solid var(--gray-200);
  box-shadow: var(--shadow-lg);
  overflow: hidden;
}

.calendar-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--space-6);
  border-bottom: 1px solid var(--gray-200);
  flex-wrap: wrap;
  gap: var(--space-4);
}

.calendar-title-group {
  display: flex;
  align-items: center;
  gap: var(--space-3);
}

.calendar-icon {
  width: 44px;
  height: 44px;
  background: var(--gradient-primary);
  border-radius: var(--radius-lg);
  display: flex;
  align-items: center;
  justify-content: center;
  color: white;
  font-size: 22px;
}

.calendar-title {
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--gray-900);
}

.calendar-subtitle {
  font-size: 0.875rem;
  color: var(--gray-500);
}

/* Calendar Legend */
.calendar-legend {
  display: flex;
  align-items: center;
  gap: var(--space-4);
}

.legend-item {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  font-size: 0.8125rem;
  font-weight: 600;
  color: var(--gray-600);
}

.legend-dot {
  width: 8px;
  height: 8px;
  border-radius: var(--radius-full);
}

.legend-available {
  background: var(--success);
}

.legend-booked {
  background: var(--gray-300);
}

.legend-yours {
  background: #10b981;
}

/* Filter Toggle Button */
.filter-toggle-btn {
  margin-left: auto;
  font-size: 0.8125rem;
  padding: var(--space-2) var(--space-3);
  gap: var(--space-1);
  border-radius: var(--radius-lg);
  transition: all 0.2s ease;
}

.filter-toggle-btn:hover {
  transform: translateY(-1px);
}

/* Calendar Wrapper */
.calendar-wrapper {
  padding: var(--space-6);
}

/* FullCalendar Customization */
#calendar {
  font-family: 'Outfit', sans-serif;
}

#calendar .fc {
  font-size: 0.9375rem;
}

#calendar .fc-toolbar-title {
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--gray-900);
}

#calendar .fc-button {
  font-family: 'Outfit', sans-serif;
  font-weight: 600;
  background: white;
  border-color: var(--gray-200);
  color: var(--gray-700);
  text-transform: none;
  border-radius: var(--radius-lg);
}

#calendar .fc-button:hover {
  background: var(--gray-50);
  border-color: var(--gray-300);
}

#calendar .fc-button-primary:not(:disabled).fc-button-active,
#calendar .fc-button-primary:not(:disabled):active {
  background: var(--primary-600);
  border-color: var(--primary-600);
  color: white;
}

#calendar .fc-daygrid-day-number {
  color: var(--gray-700);
  font-weight: 600;
}

#calendar .fc-col-header-cell-cushion {
  color: var(--gray-500);
  font-weight: 600;
  text-transform: uppercase;
  font-size: 0.75rem;
  letter-spacing: 0.05em;
}

#calendar .fc-timegrid-slot {
  height: 48px;
}

#calendar .fc-timegrid-slot-label {
  color: var(--gray-400);
  font-size: 0.75rem;
}

#calendar .fc-timegrid-axis {
  border-color: var(--gray-100);
}

/* Weekend styling */
#calendar .fc-day-sat,
#calendar .fc-day-sun {
  background: var(--gray-50);
}

#calendar .fc-timegrid-slot.fc-timegrid-slot-lane {
  border-color: var(--gray-100);
}

#calendar .fc-timegrid-slot-minor {
  border-color: transparent;
}

/* Event Styling */
#calendar .fc-event {
  cursor: pointer;
  border-radius: var(--radius-md);
  padding: var(--space-1) var(--space-2);
  font-size: 0.8125rem;
  font-weight: 600;
  border: none;
}

#calendar .fc-event booked-event {
  background: var(--gray-200);
  color: var(--gray-600);
}

#calendar .fc-event your-booking-event {
  background: var(--gradient-primary);
  color: white;
  box-shadow: var(--shadow-md);
}

#calendar .fc-timegrid-event-harness {
  font-size: 0.8125rem;
}

/* Available slot hover effect */
#calendar .fc-timegrid-slot {
  cursor: pointer;
  transition: background var(--transition);
}

#calendar .fc-timegrid-slot:hover {
  background: var(--success-light);
}

#calendar .fc-timegrid-slot.fc-timegrid-slot-lane:hover {
  background: rgba(16, 185, 129, 0.1);
}

/* Business hours highlight */
#calendar .fc-timegrid-slot[data-time="08:00:00"] {
  border-top: 2px solid var(--primary-300);
}

#calendar .fc-timegrid-slot[data-time="18:00:00"] {
  border-bottom: 2px solid var(--primary-300);
}

/* ============================================
   MODALS
   ============================================ */
.modal-overlay {
  position: fixed;
  inset: 0;
  z-index: 1000;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: var(--space-4);
  animation: modal-fade-in 0.2s ease-out;
}

@keyframes modal-fade-in {
  from { opacity: 0; }
  to { opacity: 1; }
}

.modal-backdrop {
  position: absolute;
  inset: 0;
  background: rgba(0, 0, 0, 0.5);
  backdrop-filter: blur(8px);
}

.modal-container {
  position: relative;
  background: white;
  border-radius: var(--radius-2xl);
  box-shadow: var(--shadow-xl);
  width: 100%;
  max-width: 480px;
  max-height: 90vh;
  overflow: hidden;
  animation: modal-slide-up 0.3s ease-out;
}

.modal-large {
  max-width: 560px;
}

@keyframes modal-slide-up {
  from {
    opacity: 0;
    transform: translateY(20px) scale(0.98);
  }
  to {
    opacity: 1;
    transform: translateY(0) scale(1);
  }
}

.modal-close {
  position: absolute;
  top: var(--space-4);
  right: var(--space-4);
  width: 36px;
  height: 36px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--gray-100);
  border: none;
  border-radius: var(--radius-full);
  color: var(--gray-500);
  cursor: pointer;
  transition: all var(--transition);
  z-index: 10;
}

.modal-close:hover {
  background: var(--gray-200);
  color: var(--gray-700);
}

.modal-close i {
  font-size: 20px;
  width: 20px;
  height: 20px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.modal-content {
  padding: var(--space-8);
  overflow-y: auto;
  max-height: 80vh;
}

.modal-content-full {
  padding: var(--space-6);
}

/* Modal Header */
.modal-header-compact {
  display: flex;
  align-items: center;
  gap: var(--space-4);
  margin-bottom: var(--space-8);
}

.modal-icon-wrapper {
  width: 56px;
  height: 56px;
  border-radius: var(--radius-xl);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 28px;
  flex-shrink: 0;
}

.modal-icon-primary {
  background: var(--primary-50);
  color: var(--primary-600);
}

.modal-icon-success {
  background: var(--success-light);
  color: var(--success);
}

.modal-title {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--gray-900);
}

.modal-subtitle {
  font-size: 0.9375rem;
  color: var(--gray-500);
}

/* ============================================
   FORMS
   ============================================ */
.auth-form {
  display: flex;
  flex-direction: column;
  gap: var(--space-5);
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
}

.form-label {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--gray-700);
}

.form-label i {
  font-size: 16px;
  color: var(--gray-400);
}

.form-input {
  font-family: 'Outfit', sans-serif;
  font-size: 1rem;
  padding: var(--space-3) var(--space-4);
  background: white;
  border: 1px solid var(--gray-300);
  border-radius: var(--radius-lg);
  color: var(--gray-900);
  transition: all var(--transition);
  height: 48px;
}

.form-input:hover {
  border-color: var(--gray-400);
}

.form-input:focus {
  outline: none;
  border-color: var(--primary-500);
  box-shadow: 0 0 0 3px var(--primary-100);
}

.form-input::placeholder {
  color: var(--gray-400);
}

/* ============================================
   FORM VALIDATION & FEEDBACK
   ============================================ */
.form-input-wrapper {
  position: relative;
  display: flex;
  align-items: center;
}

.form-input-wrapper .form-input {
  flex: 1;
  padding-right: var(--space-10);
}

.form-input-icon {
  position: absolute;
  right: var(--space-3);
  display: flex;
  align-items: center;
  gap: var(--space-1);
  pointer-events: none;
}

.form-input-valid {
  color: var(--success);
  font-size: 20px;
  animation: scaleIn 0.2s ease-out;
}

.form-input-invalid {
  color: var(--danger);
  font-size: 20px;
  animation: shake 0.3s ease-out;
}

.form-input.valid {
  border-color: var(--success);
}

.form-input.valid:focus {
  box-shadow: 0 0 0 3px var(--success-light);
}

.form-input.invalid {
  border-color: var(--danger);
}

.form-input.invalid:focus {
  box-shadow: 0 0 0 3px var(--danger-light);
}

.form-error {
  display: none;
  font-size: 0.875rem;
  color: var(--danger);
  margin-top: var(--space-1);
  animation: slideDown 0.2s ease-out;
}

.form-error.visible {
  display: block;
}

.form-hint {
  font-size: 0.75rem;
  color: var(--gray-500);
  margin-top: var(--space-1);
}

/* Input validation animations */
@keyframes scaleIn {
  from {
    opacity: 0;
    transform: scale(0.5);
  }
  to {
    opacity: 1;
    transform: scale(1);
  }
}

@keyframes shake {
  0%, 100% {
    transform: translateX(0);
  }
  25% {
    transform: translateX(-4px);
  }
  75% {
    transform: translateX(4px);
  }
}

@keyframes slideDown {
  from {
    opacity: 0;
    transform: translateY(-4px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* Info Banners */
.info-banner {
  display: flex;
  align-items: flex-start;
  gap: var(--space-3);
  padding: var(--space-4);
  border-radius: var(--radius-lg);
  font-size: 0.875rem;
}

.info-banner-info {
  background: var(--primary-50);
  color: var(--primary-700);
}

.info-banner-info i {
  color: var(--primary-600);
  flex-shrink: 0;
}

.info-banner-warning {
  background: var(--warning-light);
  color: var(--warning-700);
}

.info-banner-warning i {
  color: var(--warning-600);
  flex-shrink: 0;
}

/* Auth Tips */
.auth-tips {
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
  padding: var(--space-5);
  background: var(--gray-50);
  border-radius: var(--radius-xl);
}

.tip-item {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  font-size: 0.875rem;
  color: var(--gray-600);
}

.tip-item i {
  color: var(--primary-500);
  font-size: 18px;
  flex-shrink: 0;
}

/* ============================================
   BUTTONS
   ============================================ */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  font-family: 'Outfit', sans-serif;
  font-size: 0.9375rem;
  font-weight: 600;
  padding: var(--space-3) var(--space-5);
  border-radius: var(--radius-lg);
  border: none;
  cursor: pointer;
  text-decoration: none;
  transition: all var(--transition);
  white-space: nowrap;
}

.btn:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

.btn i {
  font-size: 18px;
}

.btn-large {
  padding: var(--space-4) var(--space-6);
  font-size: 1rem;
}

.btn-block {
  width: 100%;
}

.btn-primary {
  background: var(--gradient-primary);
  color: white;
  box-shadow: var(--shadow-md);
}

.btn-primary:hover:not(:disabled) {
  transform: translateY(-1px);
  box-shadow: var(--shadow-lg);
}

.btn-secondary {
  background: white;
  border: 1px solid var(--gray-300);
  color: var(--gray-700);
}

.btn-secondary:hover:not(:disabled) {
  background: var(--gray-50);
  border-color: var(--gray-400);
}

/* Button state toggling */
.btn .btn-text {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
}

.btn .btn-loading {
  display: none;
  align-items: center;
  gap: var(--space-2);
}

.btn.loading .btn-text {
  display: none !important;
}

.btn.loading .btn-loading {
  display: inline-flex !important;
}

.btn.loading .btn-loading i {
  animation: spin 1s linear infinite;
}

@keyframes spin {
  from { transform: rotate(0deg); }
  to { transform: rotate(360deg); }
}

/* ============================================
   BOOKING SUMMARY
   ============================================ */
.booking-summary {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-4);
  margin-bottom: var(--space-6);
}

.summary-item {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-3);
  padding: var(--space-4);
  background: var(--gray-50);
  border-radius: var(--radius-xl);
  text-align: center;
}

.summary-icon {
  width: 40px;
  height: 40px;
  background: white;
  border-radius: var(--radius-lg);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 20px;
  color: var(--primary-600);
  box-shadow: var(--shadow-sm);
}

.summary-details {
  display: flex;
  flex-direction: column;
}

.summary-label {
  font-size: 0.6875rem;
  font-weight: 600;
  color: var(--gray-500);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.summary-value {
  font-size: 0.9375rem;
  font-weight: 700;
  color: var(--gray-900);
}

/* ============================================
   MY BOOKINGS LIST
   ============================================ */
.booking-item {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--space-5);
  background: white;
  border: 1px solid var(--gray-200);
  border-radius: var(--radius-xl);
  margin-bottom: var(--space-3);
  transition: all var(--transition);
}

.booking-item:hover {
  border-color: var(--primary-300);
  box-shadow: var(--shadow-md);
}

.booking-item-info {
  display: flex;
  align-items: center;
  gap: var(--space-4);
}

.booking-name {
  font-weight: 700;
  color: var(--gray-900);
  font-size: 1rem;
}

.booking-meta {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  margin-top: var(--space-1);
}

.booking-date {
  padding: var(--space-1) var(--space-3);
  background: var(--gray-100);
  border-radius: var(--radius-full);
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--gray-600);
}

.booking-slot {
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--gray-700);
}

.booking-status {
  padding: var(--space-1) var(--space-3);
  background: var(--success-light);
  color: var(--success);
  border-radius: var(--radius-full);
  font-size: 0.75rem;
  font-weight: 600;
}

.cancel-btn {
  padding: var(--space-2) var(--space-4);
  background: white;
  border: 1px solid var(--danger-300);
  border-radius: var(--radius-lg);
  font-size: 0.8125rem;
  font-weight: 600;
  color: var(--danger);
  cursor: pointer;
  transition: all var(--transition);
}

.cancel-btn:hover {
  background: var(--danger);
  border-color: var(--danger);
  color: white;
}

.no-bookings {
  display: flex;
  flex-direction: column;
  align-items: center;
  padding: var(--space-12);
  text-align: center;
}

.no-bookings i {
  font-size: 56px;
  color: var(--gray-300);
  margin-bottom: var(--space-4);
}

.no-bookings p {
  color: var(--gray-500);
  font-size: 1rem;
}

/* ============================================
   TOAST NOTIFICATIONS
   ============================================ */
.toast-container {
  position: fixed;
  top: var(--space-6);
  left: 50%;
  transform: translateX(-50%);
  z-index: 1100;
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
  pointer-events: none;
}

.toast {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  padding: var(--space-4) var(--space-5);
  background: white;
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-xl);
  min-width: 320px;
  max-width: 480px;
  pointer-events: auto;
  animation: toast-slide-in 0.2s ease-out;
  border: 1px solid var(--gray-200);
}

@keyframes toast-slide-in {
  from {
    opacity: 0;
    transform: translateY(-20px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.toast-icon {
  width: 24px;
  height: 24px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 24px;
  flex-shrink: 0;
}

.toast-icon-success { color: var(--success); }
.toast-icon-error { color: var(--danger); }
.toast-icon-warning { color: var(--warning); }
.toast-icon-info { color: var(--primary-600); }

.toast-message {
  flex: 1;
  font-size: 0.9375rem;
  font-weight: 500;
  color: var(--gray-900);
}

.toast-close {
  width: 24px;
  height: 24px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: transparent;
  border: none;
  color: var(--gray-400);
  cursor: pointer;
  border-radius: var(--radius-full);
  transition: all var(--transition);
}

.toast-close:hover {
  background: var(--gray-100);
  color: var(--gray-600);
}

/* ============================================
   FOOTER
   ============================================ */
.app-footer {
  padding: var(--space-6);
  background: white;
  border-top: 1px solid var(--gray-200);
}

.footer-inner {
  max-width: 1400px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-6);
  flex-wrap: wrap;
  font-size: 0.875rem;
  color: var(--gray-500);
}

.footer-brand {
  font-weight: 600;
}

.footer-admin a {
  color: var(--gray-400);
  text-decoration: none;
  transition: color var(--transition);
}

.footer-admin a:hover {
  color: var(--primary-600);
}

/* ============================================
   RESPONSIVE DESIGN
   ============================================ */
@media (max-width: 768px) {
  .navbar-inner {
    padding: 0 var(--space-4);
    height: 64px;
  }

  .brand-divider,
  .brand-tagline,
  .product-badge span {
    display: none;
  }

  .main-content {
    padding: var(--space-6) var(--space-4);
  }

  .hero-title {
    font-size: 2rem;
  }

  .hero-description {
    font-size: 1rem;
  }

  .stats-container {
    flex-direction: column;
  }

  .stat-card {
    width: 100%;
  }

  .calendar-header {
    flex-direction: column;
    align-items: flex-start;
  }

  .calendar-legend {
    width: 100%;
    justify-content: space-between;
  }

  .booking-summary {
    grid-template-columns: 1fr;
  }

  .footer-inner {
    flex-direction: column;
    gap: var(--space-3);
  }

  .modal-content {
    padding: var(--space-6);
  }

  #calendar .fc-toolbar {
    flex-direction: column;
    gap: var(--space-4);
  }

  #calendar .fc-toolbar-chunk {
    width: 100%;
  }

  #calendar .fc-button-group {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
  }
}

@media (max-width: 480px) {
  .user-info-compact {
    display: none;
  }

  .nav-button span {
    display: none;
  }

  .toast {
    min-width: auto;
    max-width: calc(100vw - 32px);
  }

  #calendar {
    font-size: 0.8125rem;
  }

  #calendar .fc-timegrid-slot {
    height: 40px;
  }
}

/* ============================================
   LOADING STATES
   ============================================ */
.loading-spinner {
  display: flex;
  align-items: center;
  justify-content: center;
  padding: var(--space-12);
}

.loading-spinner i {
  font-size: 40px;
  color: var(--primary-500);
  animation: spin 1s linear infinite;
}

/* ============================================
   SCROLLBAR STYLING
   ============================================ */
::-webkit-scrollbar {
  width: 8px;
  height: 8px;
}

::-webkit-scrollbar-track {
  background: var(--gray-100);
  border-radius: var(--radius-full);
}

::-webkit-scrollbar-thumb {
  background: var(--gray-300);
  border-radius: var(--radius-full);
}

::-webkit-scrollbar-thumb:hover {
  background: var(--gray-400);
}

/* ============================================
   DURATION SELECTION
   ============================================ */
.duration-selection {
  margin-bottom: var(--space-6);
}

.duration-options {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--space-3);
}

.duration-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  padding: var(--space-4) var(--space-3);
  background: white;
  border: 2px solid var(--gray-200);
  border-radius: var(--radius-lg);
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--gray-700);
  cursor: pointer;
  transition: all var(--transition);
}

.duration-btn:hover {
  border-color: var(--primary-300);
  background: var(--primary-50);
  color: var(--primary-700);
}

.duration-btn.active {
  border-color: var(--primary-500);
  background: var(--primary-100);
  color: var(--primary-700);
}

/* ============================================
   TIME SLOT MODAL
   ============================================ */
.time-slots-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-3);
  max-height: 400px;
  overflow-y: auto;
  padding: var(--space-2);
}

.time-slot-btn {
  padding: var(--space-4);
  background: white;
  border: 2px solid var(--gray-200);
  border-radius: var(--radius-lg);
  font-size: 0.9375rem;
  font-weight: 600;
  color: var(--gray-700);
  cursor: pointer;
  transition: all var(--transition);
}

.time-slot-btn:hover {
  border-color: var(--primary-300);
  background: var(--primary-50);
  color: var(--primary-700);
}

@media (max-width: 640px) {
  .duration-options {
    grid-template-columns: repeat(2, 1fr);
  }

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

/* ============================================
   FULLCALENDAR EVENT STYLING
   ============================================ */
#calendar .fc-event {
  color: white !important;
}

#calendar .fc-event-title,
#calendar .fc-event-time {
  color: white !important;
}

#calendar .fc-daygrid-event {
  color: white !important;
}

#calendar .fc-daygrid-event .fc-event-title,
#calendar .fc-daygrid-event .fc-event-time {
  color: white !important;
}

#calendar .fc-time-display {
  color: rgba(255, 255, 255, 0.9) !important;
}

/* FullCalendar day grid cell rounded corners */
#calendar .fc-daygrid-day {
  border-radius: var(--radius-md);
}

#calendar .fc-daygrid-day-frame {
  border-radius: var(--radius-md);
}

/* FullCalendar more link rounded corners */
#calendar .fc-daygrid-more-link {
  border-radius: var(--radius-full);
  padding: 2px 8px;
}

/* FullCalendar popover rounded corners */
.fc-popover {
  border-radius: var(--radius-lg) !important;
}

.fc-popover-title {
  border-radius: var(--radius-lg) var(--radius-lg) 0 0 !important;
}

/* Additional rounded corners for calendar elements */
#calendar .fc-day-today {
  border-radius: var(--radius-md);
}

#calendar .fc-col-header-cell {
  border-radius: var(--radius-sm);
}