:root {
    /* Color Palette - Jamaica Fire Brigade theme */
    --primary: 220 100% 50%; /* #0066FF - Professional Blue */
    --secondary: 0 84% 60%; /* #dc3545 - Fire Red */
    --success: 142 76% 36%; /* #28a745 - Green */
    --warning: 45 100% 51%; /* #ffc107 - Amber */
    --danger: 354 70% 54%; /* #dc3545 - Red */
    --info: 188 78% 41%; /* #17a2b8 - Cyan */
    --light: 210 17% 95%; /* #f8f9fa - Light Gray */
    --dark: 210 11% 15%; /* #212529 - Dark Gray */
    --background: 210 11% 98%; /* #F5F7FA - Light Background */
    --surface: 0 0% 100%; /* #FFFFFF - White */
    --text-primary: 210 11% 15%; /* #212529 - Dark Text */
    --text-secondary: 210 7% 56%; /* #6c757d - Muted Text */
    --border: 210 18% 87%; /* #dee2e6 - Light Border */
    
    /* Spacing and sizing */
    --border-radius: 0.5rem;
    --shadow: 0 0.125rem 0.25rem rgba(0, 0, 0, 0.075);
    --shadow-lg: 0 1rem 3rem rgba(0, 0, 0, 0.175);
    --transition: all 0.15s ease-in-out;
}

* {
    box-sizing: border-box;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    background-color: hsl(var(--background));
    color: hsl(var(--text-primary));
    line-height: 1.6;
    margin: 0;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

/* Header Styles */
.header-section {
    background: linear-gradient(135deg, hsl(var(--primary)) 0%, hsl(var(--secondary)) 100%);
    color: white;
    box-shadow: var(--shadow-lg);
}

.logo-container svg {
    filter: drop-shadow(0 2px 4px rgba(0, 0, 0, 0.1));
}

.header-section h1 {
    color: white;
    font-size: 1.75rem;
    font-weight: 700;
}

.header-section p {
    color: rgba(255, 255, 255, 0.9);
    font-size: 0.95rem;
}

.connection-status .badge {
    font-size: 0.75rem;
    padding: 0.5rem 1rem;
    border-radius: 2rem;
}

.connection-status small {
    color: rgba(255, 255, 255, 0.8);
    font-size: 0.8rem;
}

/* Main Content */
.main-content {
    flex: 1;
    padding: 2rem 0;
}

/* Navigation Tabs */
.booking-nav {
    background: hsl(var(--surface));
    border-radius: var(--border-radius);
    padding: 0.5rem;
    box-shadow: var(--shadow);
    border: 1px solid hsl(var(--border));
}

.booking-nav .nav-link {
    border: none;
    color: hsl(var(--text-secondary));
    font-weight: 500;
    padding: 0.75rem 1.5rem;
    border-radius: calc(var(--border-radius) - 0.25rem);
    transition: var(--transition);
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.booking-nav .nav-link:hover {
    background-color: hsl(var(--light));
    color: hsl(var(--primary));
}

.booking-nav .nav-link.active {
    background-color: hsl(var(--primary));
    color: white;
    box-shadow: var(--shadow);
}

/* Cards */
.booking-card {
    border: none;
    box-shadow: var(--shadow-lg);
    border-radius: var(--border-radius);
    overflow: hidden;
}

.card-header {
    background: linear-gradient(135deg, hsl(var(--primary)) 0%, hsl(var(--info)) 100%);
    color: white;
    border-bottom: none;
    padding: 1.5rem;
}

.card-title {
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.card-body {
    padding: 2rem;
}

/* Form Styles */
.form-label.required::after {
    content: " *";
    color: hsl(var(--danger));
    font-weight: bold;
}

.form-control, .form-select {
    border: 1px solid hsl(var(--border));
    border-radius: var(--border-radius);
    padding: 0.75rem 1rem;
    font-size: 1rem;
    transition: var(--transition);
    min-height: 44px; /* Touch target size for mobile */
}

.form-control:focus, .form-select:focus {
    border-color: hsl(var(--primary));
    box-shadow: 0 0 0 0.2rem hsla(var(--primary), 0.25);
}

.form-text {
    color: hsl(var(--text-secondary));
    font-size: 0.875rem;
    margin-top: 0.25rem;
}

/* Navigation Buttons - 25% Smaller */
.nav-btn {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--border-radius);
    padding: 0.56rem !important;
    color: var(--text-primary);
    cursor: pointer;
    transition: var(--transition);
    display: flex;
    align-items: center;
    justify-content: center;
    width: 33px !important;
    height: 33px !important;
    font-size: 0.85rem !important;
}

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

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

/* Weekday Buttons - 25% Smaller */
.weekday-btn {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--border-radius);
    padding: 0.56rem 0.375rem !important;
    color: var(--text-primary);
    cursor: pointer;
    transition: var(--transition);
    font-weight: 500;
    min-width: 68px !important;
    width: 68px !important;
    text-align: center;
    line-height: 1.2;
    height: 45px !important;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    font-size: 0.8rem !important;
}

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

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

.weekday-btn.weekend-btn {
    background: #6c757d !important;
    color: #ffffff !important;
    border-color: #6c757d !important;
    cursor: pointer !important;
}

.weekday-btn.weekend-btn:hover {
    background: #5a6268 !important;
    border-color: #5a6268 !important;
    color: #ffffff !important;
}

.weekday-btn small {
    font-size: 0.8rem !important;
    font-weight: 500;
    margin-top: 1px;
    line-height: 1;
}

/* Weekend Time Slots */
.weekend-schedule .time-slot {
    background: #6c757d !important;
    color: #ffffff !important;
    border-color: #6c757d !important;
}

.weekend-schedule .time-slot:hover {
    background: #5a6268 !important;
    border-color: #5a6268 !important;
}

/* Button Styles */
.btn {
    border-radius: var(--border-radius);
    padding: 0.75rem 1.5rem;
    font-weight: 500;
    transition: var(--transition);
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    min-height: 44px;
    justify-content: center;
}

.btn-primary {
    background: linear-gradient(135deg, hsl(var(--primary)) 0%, hsl(var(--info)) 100%);
    border: none;
    color: white;
}

.btn-primary:hover {
    background: linear-gradient(135deg, hsl(var(--primary)) 100%, hsl(var(--info)) 0%);
    transform: translateY(-1px);
    box-shadow: var(--shadow-lg);
}

.btn-primary:disabled {
    background: hsl(var(--text-secondary));
    transform: none;
    box-shadow: none;
}

.btn-outline-secondary {
    border-color: hsl(var(--border));
    color: hsl(var(--text-secondary));
}

.btn-outline-secondary:hover {
    background-color: hsl(var(--light));
    border-color: hsl(var(--text-secondary));
    color: hsl(var(--text-primary));
}

/* Table Styles */
.booking-table {
    border-collapse: separate;
    border-spacing: 0;
}

.booking-table th {
    background-color: hsl(var(--light));
    color: hsl(var(--text-primary));
    font-weight: 600;
    padding: 1rem;
    border-bottom: 2px solid hsl(var(--border));
    position: sticky;
    top: 0;
    z-index: 10;
}

.booking-table td {
    padding: 1rem;
    border-bottom: 1px solid hsl(var(--border));
    vertical-align: middle;
}

.booking-table tbody tr:hover {
    background-color: hsl(var(--light));
}

/* Status Badges */
.status-badge {
    padding: 0.5rem 1rem;
    border-radius: 2rem;
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.status-confirmed {
    background-color: hsl(var(--success) / 0.1);
    color: hsl(var(--success));
    border: 1px solid hsl(var(--success) / 0.3);
}

.status-pending {
    background-color: hsl(var(--warning) / 0.1);
    color: hsl(var(--warning));
    border: 1px solid hsl(var(--warning) / 0.3);
}

.status-cancelled {
    background-color: hsl(var(--danger) / 0.1);
    color: hsl(var(--danger));
    border: 1px solid hsl(var(--danger) / 0.3);
}

/* Alert Styles */
.alert {
    border: none;
    border-radius: var(--border-radius);
    padding: 1rem 1.5rem;
    margin-bottom: 1.5rem;
}

.alert-success {
    background-color: hsl(var(--success) / 0.1);
    color: hsl(var(--success));
    border-left: 4px solid hsl(var(--success));
}

.alert-danger {
    background-color: hsl(var(--danger) / 0.1);
    color: hsl(var(--danger));
    border-left: 4px solid hsl(var(--danger));
}

.alert-warning {
    background-color: hsl(var(--warning) / 0.1);
    color: hsl(var(--warning));
    border-left: 4px solid hsl(var(--warning));
}

.alert-info {
    background-color: hsl(var(--info) / 0.1);
    color: hsl(var(--info));
    border-left: 4px solid hsl(var(--info));
}

/* Connection Status */
.connection-status .bg-success {
    background-color: hsl(var(--success)) !important;
}

.connection-status .bg-warning {
    background-color: hsl(var(--warning)) !important;
}

.connection-status .bg-danger {
    background-color: hsl(var(--danger)) !important;
}

.connection-status .bg-secondary {
    background-color: hsl(var(--text-secondary)) !important;
}

/* Footer */
.footer {
    background-color: hsl(var(--light));
    border-top: 1px solid hsl(var(--border));
    padding: 2rem 0;
    margin-top: auto;
}

/* Header Title Responsive */
#reserveTitle {
    font-size: 1.25rem;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

@media (max-width: 768px) {
    #reserveTitle {
        font-size: 1rem;
        white-space: normal;
        line-height: 1.3;
    }
}

/* Weekday Navigation */
.weekday-btn {
    padding: 10px 20px;
    border: 2px solid #E5E5E5;
    background: white;
    color: #666;
    border-radius: 8px;
    cursor: pointer;
    font-weight: 600;
    transition: all 0.2s ease;
    min-width: 60px;
}

.weekday-btn:hover {
    border-color: #E53E3E;
    color: #E53E3E;
}

.weekday-btn.active {
    background-color: #E53E3E;
    border-color: #E53E3E;
    color: white;
}

/* Time Slot Z-Index Layering - Critical for preventing overlap */
.time-slot.available {
    position: relative;
    z-index: 10 !important;
    pointer-events: auto;
}

.time-slot.booked {
    background-color: transparent !important;
    cursor: not-allowed;
    opacity: 0.3;
    pointer-events: none !important;
    z-index: 1;
    position: relative;
}

/* Booking Card Layering */
.booking-card {
    z-index: 5 !important;
    pointer-events: auto;
    position: absolute;
}

/* Day View Schedule Drag Selection */
.time-slot.drag-selected {
    background-color: #E53E3E !important;
    border-color: #C53030 !important;
    color: white !important;
    font-weight: bold;
    z-index: 15 !important;
}

.time-slot.drag-highlight {
    background-color: #FF6B6B !important;
    border-color: #E53E3E !important;
    opacity: 0.9;
    z-index: 12 !important;
}

.time-slot.drag-preview {
    background-color: #FED7D7 !important;
    border-color: #E53E3E !important;
    transition: all 0.1s ease;
    z-index: 11 !important;
}

/* Responsive Design */
@media (max-width: 768px) {
    .header-section h1 {
        font-size: 1.5rem;
    }
    
    .header-section .col-md-6:last-child {
        text-align: center !important;
        margin-top: 1rem;
    }

    .main-content {
        padding: 1rem 0;
    }

    .card-body {
        padding: 1.5rem;
    }

    .booking-nav .nav-link {
        padding: 0.75rem 1rem;
        font-size: 0.9rem;
    }

    .form-control, .form-select {
        font-size: 16px; /* Prevents zoom on iOS */
    }

    .table-responsive {
        font-size: 0.875rem;
    }

    .booking-table th,
    .booking-table td {
        padding: 0.5rem;
    }

    .btn {
        font-size: 0.9rem;
        padding: 0.625rem 1.25rem;
    }
}

@media (max-width: 576px) {
    .container {
        padding-left: 0.75rem;
        padding-right: 0.75rem;
    }

    .booking-nav {
        flex-direction: column;
        gap: 0.5rem;
    }

    .booking-nav .nav-link {
        text-align: center;
    }

    .card-header {
        padding: 1rem;
    }

    .card-body {
        padding: 1rem;
    }
}

/* Loading and Spinner Styles */
.spinner-border {
    width: 2rem;
    height: 2rem;
}

/* Animation Classes */
.fade-in {
    animation: fadeIn 0.3s ease-in-out;
}

@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(10px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* Form Validation */
.is-invalid {
    border-color: hsl(var(--danger));
}

.invalid-feedback {
    color: hsl(var(--danger));
    font-size: 0.875rem;
    margin-top: 0.25rem;
}

/* Equipment Details Toggle */
#equipmentDetails.show {
    display: block !important;
    animation: slideDown 0.3s ease-out;
}

@keyframes slideDown {
    from {
        opacity: 0;
        max-height: 0;
    }
    to {
        opacity: 1;
        max-height: 100px;
    }
}

/* Accessibility Improvements */
.form-control:focus,
.form-select:focus,
.btn:focus {
    outline: 2px solid hsl(var(--primary));
    outline-offset: 2px;
}

/* High contrast mode support */
@media (prefers-contrast: high) {
    :root {
        --primary: 220 100% 40%;
        --secondary: 0 100% 50%;
        --border: 0 0% 60%;
    }
}

/* Calendar Styles */
.calendar-container {
    background: hsl(var(--surface));
    border: 1px solid hsl(var(--border));
    border-radius: var(--border-radius);
    padding: 1rem;
}

.calendar-header {
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 1rem;
    padding: 0.5rem;
    background: hsl(var(--light));
    border-radius: var(--border-radius);
}

.calendar-grid {
    display: grid;
    grid-template-columns: repeat(7, 1fr);
    gap: 2px;
    background: hsl(var(--border));
    border-radius: var(--border-radius);
    overflow: hidden;
}

.calendar-day-header {
    background: hsl(var(--primary));
    color: white;
    padding: 0.5rem;
    text-align: center;
    font-size: 0.75rem;
    font-weight: 600;
}

.calendar-day {
    background: hsl(var(--surface));
    padding: 0.75rem 0.5rem;
    text-align: center;
    cursor: pointer;
    transition: var(--transition);
    min-height: 50px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 0.9rem;
}

.calendar-day:hover {
    background: hsl(var(--primary) / 0.1);
}

.calendar-day.today {
    background: hsl(var(--info) / 0.2);
    font-weight: 600;
    color: hsl(var(--info));
}

.calendar-day.selected {
    background: hsl(var(--primary));
    color: white;
    font-weight: 600;
}

.calendar-day.other-month {
    background: hsl(var(--light));
    color: hsl(var(--text-secondary));
}

.calendar-day.has-bookings {
    position: relative;
}

.calendar-day.has-bookings::after {
    content: '';
    position: absolute;
    bottom: 4px;
    left: 50%;
    transform: translateX(-50%);
    width: 6px;
    height: 6px;
    background: hsl(var(--danger));
    border-radius: 50%;
}

/* Time Grid Styles */
.date-selector {
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 1rem;
    background: hsl(var(--light));
    border-radius: var(--border-radius);
}

.time-grid-container {
    max-height: 400px;
    overflow-y: auto;
    border: 1px solid hsl(var(--border));
    border-radius: var(--border-radius);
    background: hsl(var(--surface));
}

.time-grid {
    display: grid;
    grid-template-columns: 80px repeat(1, 1fr);
    gap: 1px;
    background: hsl(var(--border));
    padding: 1px;
}

.time-label {
    background: hsl(var(--light));
    padding: 0.5rem 0.25rem;
    font-size: 0.75rem;
    font-weight: 600;
    text-align: center;
    border-right: 2px solid hsl(var(--border));
    display: flex;
    align-items: center;
    justify-content: center;
}

.time-block {
    background: hsl(var(--surface));
    height: 30px;
    cursor: pointer;
    transition: var(--transition);
    position: relative;
    user-select: none;
}

.time-block:hover {
    background: hsl(var(--primary) / 0.1);
}

.time-block.available {
    background: hsl(var(--success) / 0.1);
    border-left: 3px solid hsl(var(--success));
}

.time-block.selected {
    background: hsl(var(--primary) / 0.3);
    border-left: 3px solid hsl(var(--primary));
}

.time-block.booked {
    background: hsl(var(--danger) / 0.2);
    border-left: 3px solid hsl(var(--danger));
    cursor: not-allowed;
}

.time-block.selecting {
    background: hsl(var(--warning) / 0.3);
    border-left: 3px solid hsl(var(--warning));
}

/* Legend */
.legend-item {
    display: inline-flex;
    align-items: center;
    margin-right: 1rem;
    font-size: 0.8rem;
}

.legend-item .block {
    width: 12px;
    height: 12px;
    border-radius: 2px;
    margin-right: 0.5rem;
}

.legend-item .block.available {
    background: hsl(var(--success) / 0.3);
    border: 1px solid hsl(var(--success));
}

.legend-item .block.selected {
    background: hsl(var(--primary) / 0.5);
    border: 1px solid hsl(var(--primary));
}

.legend-item .block.booked {
    background: hsl(var(--danger) / 0.3);
    border: 1px solid hsl(var(--danger));
}

/* Responsive Time Grid */
@media (max-width: 768px) {
    .time-grid {
        grid-template-columns: 60px repeat(2, 1fr);
    }
    
    .time-label {
        font-size: 0.7rem;
        padding: 0.25rem;
    }
    
    .time-block {
        height: 25px;
    }
    
    .date-selector {
        flex-direction: column;
        gap: 0.5rem;
    }
}

/* Month Calendar Day Styles */
.cal-day-past {
    background: #F0F0F0;
    color: #999;
    cursor: not-allowed;
}

.cal-day-today {
    background: #E53E3E;
    color: white;
    cursor: pointer;
    border: 2px solid #C53030;
}

.cal-day-available {
    background: white;
    color: #333;
    cursor: pointer;
    border: 2px solid transparent;
}

.cal-day-available:hover {
    background: #F0F8FF !important;
    border-color: #E53E3E !important;
}

.cal-day-today:hover {
    background: #C53030 !important;
    border-color: #E53E3E !important;
}

.cal-day-available-green {
    background: #D4F4DD;
    color: #2D5016;
    cursor: pointer;
    border: 2px solid #68D391;
}

.cal-day-available-green:hover {
    background: #C6F6D5 !important;
    border-color: #48BB78 !important;
}

.cal-day-booked-pink {
    background: #FED7D7;
    color: #742A2A;
    cursor: pointer;
    border: 2px solid #FC8181;
}

.cal-day-booked-pink:hover {
    background: #FEB2B2 !important;
    border-color: #F56565 !important;
}

.cal-day-today-available {
    background: #38A169;
    color: white;
    cursor: pointer;
    border: 2px solid #2F855A;
}

.cal-day-today-available:hover {
    background: #2F855A !important;
    border-color: #38A169 !important;
}

.cal-day-today-booked {
    background: #E53E3E;
    color: white;
    cursor: pointer;
    border: 2px solid #C53030;
}

.cal-day-today-booked:hover {
    background: #C53030 !important;
    border-color: #E53E3E !important;
}

/* Reduced motion support */
@media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
}