@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700&family=Outfit:wght@400;500;600;700;800&display=swap');

:root {
  --bg-primary: #0a0f1d;
  --bg-secondary: #131a35;
  --glass-bg: rgba(255, 255, 255, 0.03);
  --glass-border: rgba(255, 255, 255, 0.08);
  --text-primary: #f8fafc;
  --text-secondary: #94a3b8;
  --accent-blue: #3b82f6;
  --accent-cyan: #06b6d4;
  --accent-gold: #fbbf24;
  --accent-gold-glow: rgba(251, 191, 36, 0.15);
  --danger: #ef4444;
  --success: #10b981;
  --shadow-lg: 0 10px 25px -5px rgba(0, 0, 0, 0.3), 0 8px 10px -6px rgba(0, 0, 0, 0.3);
  --font-heading: 'Outfit', sans-serif;
  --font-body: 'Inter', sans-serif;
}

* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
  -webkit-font-smoothing: antialiased;
}

body {
  background-color: var(--bg-primary);
  background-image: 
    radial-gradient(circle at 10% 20%, rgba(59, 130, 246, 0.1) 0%, transparent 40%),
    radial-gradient(circle at 90% 80%, rgba(6, 182, 212, 0.1) 0%, transparent 40%);
  color: var(--text-primary);
  font-family: var(--font-body);
  line-height: 1.6;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  overflow-x: hidden;
}

header {
  padding: 1.5rem 2rem;
  border-bottom: 1px solid var(--glass-border);
  backdrop-filter: blur(12px);
  position: sticky;
  top: 0;
  z-index: 100;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.logo {
  font-family: var(--font-heading);
  font-weight: 800;
  font-size: 1.5rem;
  background: linear-gradient(135deg, var(--accent-blue), var(--accent-cyan));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  display: flex;
  align-items: center;
  gap: 0.5rem;
  text-decoration: none;
}

.logo span {
  color: var(--text-primary);
  -webkit-text-fill-color: var(--text-primary);
}

.admin-link-btn {
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  color: var(--text-secondary);
  padding: 0.5rem 1rem;
  border-radius: 8px;
  font-size: 0.875rem;
  text-decoration: none;
  transition: all 0.3s ease;
  font-weight: 500;
}

.admin-link-btn:hover {
  border-color: var(--accent-blue);
  color: var(--text-primary);
  background: rgba(59, 130, 246, 0.05);
}

main {
  flex: 1;
  padding: 3rem 2rem;
  max-width: 1200px;
  margin: 0 auto;
  width: 100%;
}

h1, h2, h3, h4 {
  font-family: var(--font-heading);
  font-weight: 700;
  letter-spacing: -0.02em;
}

.page-title {
  text-align: center;
  font-size: 2.75rem;
  margin-bottom: 0.5rem;
  font-weight: 800;
}

.page-subtitle {
  text-align: center;
  color: var(--text-secondary);
  margin-bottom: 3rem;
  font-size: 1.1rem;
}

/* Glassmorphism Container */
.scheduler-card {
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  border-radius: 20px;
  padding: 2.5rem;
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  box-shadow: var(--shadow-lg);
  margin-bottom: 2rem;
}

.section-title {
  font-size: 1.25rem;
  margin-bottom: 1.5rem;
  color: var(--text-primary);
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.section-title span.number {
  background: rgba(59, 130, 246, 0.15);
  color: var(--accent-blue);
  width: 28px;
  height: 28px;
  border-radius: 50%;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-size: 0.875rem;
  font-weight: 700;
  border: 1px solid rgba(59, 130, 246, 0.3);
  flex-shrink: 0;
}

/* 1. Location Selection */
.location-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 1.25rem;
  margin-bottom: 3rem;
}

.location-card {
  background: rgba(255, 255, 255, 0.01);
  border: 1px solid var(--glass-border);
  border-radius: 12px;
  padding: 1.5rem;
  text-align: center;
  cursor: pointer;
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.75rem;
}

.location-card:hover {
  transform: translateY(-4px);
  border-color: rgba(59, 130, 246, 0.5);
  background: rgba(59, 130, 246, 0.04);
}

.location-card.selected {
  border-color: var(--accent-blue);
  background: rgba(59, 130, 246, 0.1);
  box-shadow: 0 0 15px rgba(59, 130, 246, 0.15);
}

.location-card i {
  font-size: 2rem;
  color: var(--text-secondary);
  transition: color 0.3s;
}

.location-card.selected i {
  color: var(--accent-blue);
}

.location-card h3 {
  font-size: 1.1rem;
}

.location-card p {
  font-size: 0.8rem;
  color: var(--text-secondary);
}

/* 2. Date Selection */
.date-selector-wrapper {
  margin-bottom: 3rem;
}

.date-scroll-container {
  display: flex;
  gap: 0.75rem;
  overflow-x: auto;
  padding: 0.5rem 0;
  scrollbar-width: thin;
  scrollbar-color: var(--glass-border) transparent;
}

.date-scroll-container::-webkit-scrollbar {
  height: 4px;
}

.date-scroll-container::-webkit-scrollbar-thumb {
  background: var(--glass-border);
  border-radius: 2px;
}

.date-pill {
  flex: 0 0 auto;
  background: rgba(255, 255, 255, 0.02);
  border: 1px solid var(--glass-border);
  padding: 0.85rem 1.5rem;
  border-radius: 12px;
  text-align: center;
  cursor: pointer;
  transition: all 0.3s;
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
  min-width: 100px;
}

.date-pill:hover:not(.empty) {
  border-color: rgba(6, 182, 212, 0.5);
  background: rgba(6, 182, 212, 0.03);
}

.date-pill.selected {
  border-color: var(--accent-cyan);
  background: rgba(6, 182, 212, 0.1);
  box-shadow: 0 0 15px rgba(6, 182, 212, 0.15);
}

.date-pill .day-name {
  font-size: 0.75rem;
  text-transform: uppercase;
  color: var(--text-secondary);
  font-weight: 600;
  letter-spacing: 0.05em;
}

.date-pill.selected .day-name {
  color: var(--accent-cyan);
}

.date-pill .day-num {
  font-size: 1.35rem;
  font-family: var(--font-heading);
  font-weight: 700;
}

.date-pill .month-name {
  font-size: 0.75rem;
  color: var(--text-secondary);
}

.no-dates-msg {
  color: var(--text-secondary);
  text-align: center;
  padding: 2rem;
  border: 1px dashed var(--glass-border);
  border-radius: 12px;
  width: 100%;
}

/* 3. Slot Grid */
.slots-container {
  margin-bottom: 1rem;
}

.slots-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(180px, 1fr));
  gap: 1rem;
}

.slot-item {
  border-radius: 10px;
  padding: 1rem;
  text-align: center;
  cursor: pointer;
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  position: relative;
  overflow: hidden;
  background: rgba(255, 255, 255, 0.02);
  border: 1px solid var(--glass-border);
  display: flex;
  flex-direction: column;
  justify-content: center;
  min-height: 75px;
}

/* Available Slot */
.slot-item.available:hover {
  transform: scale(1.03);
  border-color: var(--accent-blue);
  background: rgba(59, 130, 246, 0.06);
}

/* Preferred Slot styling (Gold glowing) */
.slot-item.preferred {
  border-color: var(--accent-gold);
  background: var(--accent-gold-glow);
}

.slot-item.preferred::before {
  content: '★ PREFERRED';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  font-size: 0.6rem;
  font-weight: 800;
  color: var(--accent-gold);
  letter-spacing: 0.05em;
  padding-top: 4px;
}

.slot-item.preferred.available:hover {
  box-shadow: 0 0 15px rgba(251, 191, 36, 0.25);
  border-color: var(--accent-gold);
}

/* Booked / Unavailable Slot */
.slot-item.booked {
  background: rgba(255, 255, 255, 0.01) !important;
  border-color: rgba(255, 255, 255, 0.03) !important;
  color: rgba(255, 255, 255, 0.2) !important;
  cursor: not-allowed;
  box-shadow: none !important;
}

.slot-item.booked .time-text {
  text-decoration: line-through;
  opacity: 0.5;
}

.slot-item.booked::after {
  content: 'Unavailable';
  font-size: 0.7rem;
  color: var(--danger);
  font-weight: 600;
  margin-top: 4px;
}

.slot-item.booked.preferred::before {
  color: rgba(251, 191, 36, 0.2) !important;
}

.time-text {
  font-size: 1.1rem;
  font-weight: 600;
  color: var(--text-primary);
}

.slot-item.booked .time-text {
  color: rgba(255, 255, 255, 0.3);
}

/* Modal Booking Dialog */
.modal-overlay {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(5, 8, 22, 0.8);
  backdrop-filter: blur(8px);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 1000;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.3s ease;
}

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

.modal-content {
  background: var(--bg-secondary);
  border: 1px solid var(--glass-border);
  border-radius: 20px;
  width: 90%;
  max-width: 500px;
  padding: 2.5rem;
  box-shadow: var(--shadow-lg);
  transform: translateY(20px);
  transition: transform 0.3s cubic-bezier(0.34, 1.56, 0.64, 1);
  position: relative;
}

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

.modal-close {
  position: absolute;
  top: 1.25rem;
  right: 1.25rem;
  background: transparent;
  border: none;
  color: var(--text-secondary);
  font-size: 1.5rem;
  cursor: pointer;
  transition: color 0.3s;
}

.modal-close:hover {
  color: var(--text-primary);
}

.modal-title {
  font-size: 1.5rem;
  margin-bottom: 0.5rem;
}

.modal-subtitle {
  color: var(--text-secondary);
  font-size: 0.875rem;
  margin-bottom: 1.5rem;
  border-bottom: 1px solid var(--glass-border);
  padding-bottom: 1rem;
}

.booking-summary-card {
  background: rgba(255, 255, 255, 0.02);
  border: 1px solid var(--glass-border);
  border-radius: 8px;
  padding: 1rem;
  margin-bottom: 1.5rem;
  font-size: 0.9rem;
}

.summary-row {
  display: flex;
  justify-content: space-between;
  margin-bottom: 0.5rem;
}

.summary-row:last-child {
  margin-bottom: 0;
}

.summary-label {
  color: var(--text-secondary);
}

.summary-val {
  font-weight: 600;
  color: var(--text-primary);
}

/* Forms */
.form-group {
  margin-bottom: 1.25rem;
}

.form-group label {
  display: block;
  font-size: 0.85rem;
  font-weight: 500;
  margin-bottom: 0.5rem;
  color: var(--text-secondary);
}

.form-control {
  width: 100%;
  background: rgba(0, 0, 0, 0.2);
  border: 1px solid var(--glass-border);
  border-radius: 8px;
  padding: 0.75rem 1rem;
  color: var(--text-primary);
  font-family: var(--font-body);
  font-size: 1rem;
  transition: border-color 0.3s, box-shadow 0.3s;
}

.form-control:focus {
  outline: none;
  border-color: var(--accent-blue);
  box-shadow: 0 0 10px rgba(59, 130, 246, 0.1);
}

.btn {
  width: 100%;
  padding: 0.85rem 1.5rem;
  border-radius: 8px;
  font-weight: 600;
  font-size: 1rem;
  font-family: var(--font-heading);
  cursor: pointer;
  transition: all 0.3s;
  border: none;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
}

.btn-primary {
  background: linear-gradient(135deg, var(--accent-blue), var(--accent-cyan));
  color: #fff;
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 5px 15px rgba(59, 130, 246, 0.3);
}

.btn-primary:active {
  transform: translateY(0);
}

/* Success Card Overlay */
.success-card {
  text-align: center;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 1rem;
  padding: 2rem 0;
}

.success-icon {
  width: 64px;
  height: 64px;
  background: rgba(16, 185, 129, 0.15);
  color: var(--success);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 2rem;
  border: 2px solid var(--success);
  margin-bottom: 0.5rem;
  animation: pulseSuccess 2s infinite;
}

@keyframes pulseSuccess {
  0% { transform: scale(1); box-shadow: 0 0 0 0 rgba(16, 185, 129, 0.4); }
  70% { transform: scale(1.05); box-shadow: 0 0 0 10px rgba(16, 185, 129, 0); }
  100% { transform: scale(1); box-shadow: 0 0 0 0 rgba(16, 185, 129, 0); }
}

/* ==================== ADMIN PANEL SPECIFIC STYLES ==================== */

.admin-layout {
  display: grid;
  grid-template-columns: 320px 1fr;
  gap: 2rem;
}

@media (max-width: 900px) {
  .admin-layout {
    grid-template-columns: 1fr;
  }
}

.admin-sidebar {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}

.metric-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: 1rem;
  margin-bottom: 1.5rem;
}

.metric-card {
  background: rgba(255, 255, 255, 0.02);
  border: 1px solid var(--glass-border);
  border-radius: 12px;
  padding: 1.25rem;
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
}

.metric-val {
  font-size: 2rem;
  font-family: var(--font-heading);
  font-weight: 800;
  color: var(--text-primary);
}

.metric-label {
  font-size: 0.8rem;
  color: var(--text-secondary);
  font-weight: 500;
}

.switch-wrapper {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  margin: 1.5rem 0;
  cursor: pointer;
}

.switch-wrapper input {
  cursor: pointer;
  width: 18px;
  height: 18px;
  accent-color: var(--accent-blue);
}

/* Slots Management Table */
.slots-table-wrapper {
  overflow-x: auto;
  border-radius: 12px;
  border: 1px solid var(--glass-border);
  background: rgba(255, 255, 255, 0.01);
}

.slots-table {
  width: 100%;
  border-collapse: collapse;
  text-align: left;
  font-size: 0.9rem;
}

.slots-table th, 
.slots-table td {
  padding: 1rem 1.25rem;
  border-bottom: 1px solid var(--glass-border);
}

.slots-table th {
  background: rgba(255, 255, 255, 0.02);
  color: var(--text-secondary);
  font-weight: 600;
  font-size: 0.8rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.slots-table tr:last-child td {
  border-bottom: none;
}

.badge {
  display: inline-flex;
  padding: 0.25rem 0.5rem;
  border-radius: 4px;
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
}

.badge-available {
  background: rgba(16, 185, 129, 0.1);
  color: var(--success);
  border: 1px solid rgba(16, 185, 129, 0.2);
}

.badge-booked {
  background: rgba(59, 130, 246, 0.1);
  color: var(--accent-blue);
  border: 1px solid rgba(59, 130, 246, 0.2);
}

.badge-preferred {
  background: var(--accent-gold-glow);
  color: var(--accent-gold);
  border: 1px solid rgba(251, 191, 36, 0.3);
}

.btn-danger {
  background: rgba(239, 68, 68, 0.1);
  color: var(--danger);
  border: 1px solid rgba(239, 68, 68, 0.2);
  padding: 0.4rem 0.75rem;
  font-size: 0.8rem;
  border-radius: 6px;
  cursor: pointer;
  transition: all 0.3s;
}

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

/* Login Card styling */
.login-card {
  max-width: 400px;
  margin: 4rem auto;
}

.login-title {
  text-align: center;
  margin-bottom: 2rem;
}

.text-danger {
  color: var(--danger);
  font-size: 0.85rem;
  margin-top: 0.5rem;
  text-align: center;
}

footer {
  text-align: center;
  padding: 2rem;
  border-top: 1px solid var(--glass-border);
  color: var(--text-secondary);
  font-size: 0.85rem;
}

/* Utility details styling */
.booking-details-box {
  margin-top: 0.25rem;
  font-size: 0.8rem;
  color: var(--text-secondary);
  background: rgba(0, 0, 0, 0.1);
  padding: 0.5rem;
  border-radius: 4px;
  border: 1px solid rgba(255,255,255,0.02);
}

.booking-details-box p {
  margin-bottom: 0.2rem;
}
.booking-details-box p:last-child {
  margin-bottom: 0;
}

@media (max-width: 600px) {
  /* Layout Paddings */
  main {
    padding: 1.5rem 1rem;
  }
  
  .scheduler-card {
    padding: 1.25rem;
    border-radius: 16px;
  }
  
  /* Header adjustments */
  header {
    padding: 1rem;
  }
  
  .logo {
    font-size: 1.25rem;
  }
  
  .admin-link-btn {
    padding: 0.4rem 0.75rem;
    font-size: 0.8rem;
  }
  
  /* Typography */
  .page-title {
    font-size: 1.85rem;
  }
  
  .page-subtitle {
    font-size: 0.95rem;
    margin-bottom: 2rem;
  }
  
  /* Location selection */
  .location-grid {
    grid-template-columns: 1fr 1fr;
    gap: 0.75rem;
    margin-bottom: 2rem;
  }
  
  .location-card {
    padding: 1rem 0.75rem;
    gap: 0.5rem;
  }
  
  .location-card i {
    font-size: 1.5rem;
  }
  
  .location-card h3 {
    font-size: 0.95rem;
  }
  
  .location-card p {
    font-size: 0.7rem;
  }
  
  /* Date selector */
  .date-selector-wrapper {
    margin-bottom: 2rem;
  }
  
  .date-pill {
    padding: 0.65rem 1rem;
    min-width: 80px;
  }
  
  .date-pill .day-num {
    font-size: 1.15rem;
  }

  /* Time slots grid - 2 columns on mobile */
  .slots-grid {
    grid-template-columns: 1fr 1fr;
    gap: 0.75rem;
  }
  
  .slot-item {
    padding: 0.75rem;
    min-height: 65px;
  }
  
  .time-text {
    font-size: 0.95rem;
  }
  
  /* Booking modal content padding */
  .modal-content {
    padding: 1.5rem;
    border-radius: 16px;
  }
  
  .modal-title {
    font-size: 1.25rem;
  }
  
  .booking-summary-card {
    padding: 0.75rem;
    margin-bottom: 1rem;
    font-size: 0.85rem;
  }
  
  /* Admin sidebar spacing */
  .admin-layout {
    gap: 1.5rem;
  }
  
  .metric-grid {
    grid-template-columns: 1fr 1fr;
    gap: 0.75rem;
  }
  
  .metric-card {
    padding: 1rem;
  }
  
  .metric-val {
    font-size: 1.5rem;
  }
  
  .metric-label {
    font-size: 0.75rem;
  }
}