:root {
    --primary-color: #0d6efd;
    --success-color: #198754;
    --danger-color: #dc3545;
    --info-color: #0dcaf0;
}

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

main {
    flex: 1;
}

.footer {
    margin-top: auto;
}

/* Time Slot Buttons */
.time-slot-btn {
    padding: 12px 10px;
    font-size: 14px;
    font-weight: 500;
    border-width: 2px;
    transition: all 0.3s ease;
}

    .time-slot-btn:hover {
        transform: translateY(-2px);
        box-shadow: 0 4px 8px rgba(0, 0, 0, 0.15);
    }

    .time-slot-btn.btn-success {
        background-color: var(--success-color);
        border-color: var(--success-color);
        color: white;
    }

/* Cards */
.card {
    border-radius: 8px;
    border: none;
}

.card-header {
    border-radius: 8px 8px 0 0 !important;
    font-weight: 600;
}

.shadow-sm {
    box-shadow: 0 0.125rem 0.5rem rgba(0, 0, 0, 0.075) !important;
}

/* Form Styling */
.form-label {
    font-weight: 500;
    margin-bottom: 0.5rem;
}

.form-control:focus {
    border-color: var(--primary-color);
    box-shadow: 0 0 0 0.2rem rgba(13, 110, 253, 0.25);
}

/* Sticky Booking Form */
@media (min-width: 992px) {
    .sticky-top {
        position: sticky;
        top: 20px;
        z-index: 1020;
    }
}

/* Alerts */
.alert {
    border-radius: 8px;
    border-left: 4px solid;
}

.alert-success {
    border-left-color: var(--success-color);
}

.alert-danger {
    border-left-color: var(--danger-color);
}

.alert-info {
    border-left-color: var(--info-color);
}

/* Responsive adjustments */
@media (max-width: 768px) {
    .time-slot-btn {
        font-size: 13px;
        padding: 10px 8px;
    }

    .card-body {
        padding: 1rem;
    }

    h2 {
        font-size: 1.5rem;
    }
}

/* Button Group */
.btn-group .btn {
    border-width: 2px;
}

/* Navbar */
.navbar-brand {
    font-size: 1.5rem;
    font-weight: 600;
}

    .navbar-brand i {
        color: #ffc107;
    }