/* ==========================================
   UTILITIES - HELPERS & ANIMATIONS
   Animations, Loading States, Print, Accessibility
   ========================================== */

/* ==========================================
   ANIMATIONS
   ========================================== */
@keyframes fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}

@keyframes slideUp {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes fadeInScale {
    from {
        opacity: 0;
        transform: scale(0.9);
    }
    to {
        opacity: 1;
        transform: scale(1);
    }
}

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

@keyframes shimmer {
    0% { transform: translateX(-100%); }
    100% { transform: translateX(100%); }
}

/* Animation Classes */
.animate-fade-in {
    animation: fadeIn 0.5s ease-out;
}

.animate-slide-up {
    animation: slideUp 0.6s ease-out;
}

.fade-in-up {
    animation: fadeInUp 0.6s ease-out;
}

.fade-in-scale {
    animation: fadeInScale 0.8s ease-out;
}

.spin {
    animation: spin 1s linear infinite;
}

/* ==========================================
   LOADING STATES
   ========================================== */
.btn.loading {
    position: relative;
    color: transparent;
}

.btn.loading::after {
    content: '';
    position: absolute;
    width: 16px;
    height: 16px;
    top: 50%;
    left: 50%;
    margin-left: -8px;
    margin-top: -8px;
    border: 2px solid #ffffff;
    border-radius: 50%;
    border-top-color: transparent;
    animation: spin 0.8s linear infinite;
}

.btn-secondary.loading::after,
.btn-outline-primary.loading::after {
    border-color: var(--gray-700);
    border-top-color: transparent;
}

.loading {
    position: relative;
    pointer-events: none;
    opacity: 0.6;
}

.loading::after {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 24px;
    height: 24px;
    margin: -12px 0 0 -12px;
    border: 3px solid var(--primary);
    border-radius: 50%;
    border-top-color: transparent;
    animation: spin 1s linear infinite;
}

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

/* Focus Visible */
:focus-visible {
    outline: 2px solid var(--accent);
    outline-offset: 2px;
}

/* High Contrast Mode */
@media (prefers-contrast: high) {
    :root {
        --primary: #000;
        --gray-900: #000;
        --gray-100: #fff;
    }
    
    .card,
    .btn,
    .form-control,
    .form-select {
        border-width: 2px;
    }
}

/* ==========================================
   PRINT STYLES
   ========================================== */
@media print {
    body {
        background: white;
        min-height: auto;
    }
    
    .btn,
    #top-navbar,
    footer,
    .progress-steps,
    .success-actions {
        display: none;
    }
    
    .card,
    .booking-details-card {
        box-shadow: none;
        border: 1px solid #ddd;
    }
    
    .booking-container,
    .success-container {
        background: white;
        min-height: auto;
    }
    
    .info-card {
        display: none;
    }
    
    .success-icon {
        width: 80px;
        height: 80px;
        font-size: 2.5rem;
    }
}

/* ==========================================
   RESPONSIVE UTILITIES
   ========================================== */
@media (max-width: 768px) {
    :root {
        --spacing-xl: 1.5rem;
        --spacing-2xl: 2rem;
        --spacing-3xl: 3rem;
    }
}