:root {
    --deep-blue: #1e3a8a;
    --turquoise: #06b6d4;
    --aquamarine: #67e8f9;
    --sunset-orange: #f97316;
    --sandy-beige: #fef3c7;
    --warm-white: #fefefe;
    --dark-gray: #374151;
    --light-gray: #f8fafc;
}

body {
    background: linear-gradient(135deg, #f8fafc 0%, #e2e8f0 100%);
    font-family: 'Inter', sans-serif;
}

.booking-detail {
    padding: 20px;
    background: linear-gradient(135deg, rgba(6, 182, 212, 0.08), rgba(103, 232, 249, 0.05));
    border-radius: 12px;
    margin-bottom: 20px;
    border: 1px solid rgba(6, 182, 212, 0.1);
    transition: all 0.3s ease;
}

.booking-detail:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(6, 182, 212, 0.15);
}

.payment-option {
    padding: 20px;
    border: 2px solid #e2e8f0;
    border-radius: 12px;
    transition: all 0.3s ease;
    background: white;
    cursor: pointer;
}

.payment-option:hover {
    border-color: #06b6d4;
    background: linear-gradient(135deg, rgba(6, 182, 212, 0.05), rgba(103, 232, 249, 0.03));
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(6, 182, 212, 0.1);
}

.payment-option input:checked + label {
    color: #06b6d4;
    font-weight: 600;
}

.payment-option input:checked {
    background-color: #06b6d4;
    border-color: #06b6d4;
}

.bg-gradient-primary {
    background: linear-gradient(135deg, #1e3a8a, #06b6d4) !important;
    border: none;
}

.bg-gradient-info {
    background: linear-gradient(135deg, #06b6d4, #67e8f9) !important;
    border: none;
}

.card {
    border: none;
    border-radius: 16px;
    overflow: hidden;
}

.card-header {
    border-bottom: none;
    padding: 25px;
    position: relative;
}

.card-body {
    padding: 30px;
}

.form-floating > label {
    color: #6b7280;
    font-weight: 500;
}

.form-control {
    border: 2px solid #e5e7eb;
    border-radius: 12px;
    padding: 12px 16px;
    font-size: 16px;
    transition: all 0.3s ease;
}

.form-control:focus {
    border-color: #06b6d4;
    box-shadow: 0 0 0 0.2rem rgba(6, 182, 212, 0.25);
    transform: translateY(-1px);
}

.form-control:hover {
    border-color: #9ca3af;
}

.btn-success {
    background: linear-gradient(135deg, #10b981, #059669);
    border: none;
    border-radius: 12px;
    padding: 16px 32px;
    font-size: 18px;
    font-weight: 600;
    transition: all 0.3s ease;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.btn-success:hover {
    background: linear-gradient(135deg, #059669, #047857);
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(16, 185, 129, 0.3);
}

.btn-outline-secondary {
    border: 2px solid #6b7280;
    color: #6b7280;
    border-radius: 12px;
    padding: 12px 24px;
    font-weight: 600;
    transition: all 0.3s ease;
}

.btn-outline-secondary:hover {
    background: #6b7280;
    color: white;
    transform: translateY(-1px);
}

.text-primary {
    color: #06b6d4 !important;
}

.text-success {
    color: #10b981 !important;
}

.text-warning {
    color: #f59e0b !important;
}

.text-danger {
    color: #ef4444 !important;
}

.shadow-lg {
    box-shadow: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04) !important;
}

.container {
    max-width: 1200px;
}

h4, h5, h6 {
    color: #1f2937;
    font-weight: 700;
}

.form-check-input:checked {
    background-color: #06b6d4;
    border-color: #06b6d4;
}

.form-check-input:focus {
    border-color: #06b6d4;
    box-shadow: 0 0 0 0.25rem rgba(6, 182, 212, 0.25);
}

/* Turkish Cultural Elements */
.card-header::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: linear-gradient(90deg, #dc2626, #ffffff, #dc2626);
}

/* Responsive Design */
@media (max-width: 768px) {
    .container {
        padding: 0 15px;
    }
    
    .card-body {
        padding: 20px;
    }
    
    .card-header {
        padding: 20px;
    }
    
    .booking-detail {
        padding: 15px;
    }
    
    .payment-option {
        padding: 15px;
        margin-bottom: 15px;
    }
}

/* Animation for form elements */
.form-floating {
    position: relative;
}

.form-floating input:focus ~ label,
.form-floating input:not(:placeholder-shown) ~ label {
    color: #06b6d4;
}

/* Loading animation */
.btn-success:disabled {
    background: linear-gradient(135deg, #9ca3af, #6b7280);
    cursor: not-allowed;
}

.btn-success:disabled::after {
    content: '';
    display: inline-block;
    width: 16px;
    height: 16px;
    margin-left: 8px;
    border: 2px solid transparent;
    border-top: 2px solid white;
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

@keyframes spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}