/* 
 * Rongini Premium Animation System 
 */

:root {
    --motion-fast: 180ms;
    --motion-normal: 280ms;
    --motion-slow: 500ms;
    --motion-hero: 700ms;

    --ease-standard: cubic-bezier(0.2, 0.8, 0.2, 1);
    --ease-smooth: cubic-bezier(0.22, 1, 0.36, 1);
    
    --brand-primary-light: rgba(154, 0, 2, 0.1);
}

/* Accessibility: Reduced Motion */
@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;
    }
}

/* -----------------------------
 * 1. Page Enter / Exit
 * ----------------------------- */
.page-enter {
    animation: fadeUp var(--motion-slow) var(--ease-standard) forwards;
}

@keyframes fadeUp {
    0% {
        opacity: 0;
        transform: translateY(12px);
    }
    100% {
        opacity: 1;
        transform: translateY(0);
    }
}

/* -----------------------------
 * 2. Scroll Reveal Utility
 * ----------------------------- */
.scroll-reveal {
    opacity: 0;
    transform: translateY(15px);
    transition: opacity var(--motion-slow) var(--ease-standard), transform var(--motion-slow) var(--ease-standard);
}

.scroll-reveal.is-visible {
    opacity: 1;
    transform: translateY(0);
}

/* Stagger delays */
.delay-1 { transition-delay: 50ms; animation-delay: 50ms; }
.delay-2 { transition-delay: 100ms; animation-delay: 100ms; }
.delay-3 { transition-delay: 150ms; animation-delay: 150ms; }
.delay-4 { transition-delay: 200ms; animation-delay: 200ms; }
.delay-5 { transition-delay: 250ms; animation-delay: 250ms; }

/* -----------------------------
 * 3. Component Micro-Interactions
 * ----------------------------- */

/* Button Hover Lift */
.hover-lift {
    transition: transform var(--motion-fast) var(--ease-standard), box-shadow var(--motion-fast) var(--ease-standard);
}
.hover-lift:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(0,0,0,0.1);
}
.hover-lift:active {
    transform: translateY(0) scale(0.98);
}

/* Button Pulse/Pop */
.animate-pop {
    animation: pop var(--motion-fast) var(--ease-smooth);
}
@keyframes pop {
    0% { transform: scale(1); }
    50% { transform: scale(1.15); }
    100% { transform: scale(1); }
}

/* Smooth Image Crossfade */
.crossfade-img {
    transition: opacity var(--motion-normal) var(--ease-standard);
}
.crossfade-img.fading {
    opacity: 0.5;
}

/* Subtle Link Underline */
.nav-links a {
    position: relative;
    transition: color var(--motion-fast) var(--ease-standard);
}
.nav-links a::after {
    content: '';
    position: absolute;
    width: 0;
    height: 2px;
    bottom: -4px;
    left: 50%;
    background-color: var(--primary, #9a0002);
    transition: width var(--motion-fast) var(--ease-standard), left var(--motion-fast) var(--ease-standard);
}
.nav-links a:hover::after, .nav-links a.active::after {
    width: 100%;
    left: 0;
}

/* Dropdown Menu (If present) */
.dropdown-menu {
    opacity: 0;
    transform: translateY(10px);
    pointer-events: none;
    transition: opacity var(--motion-fast) var(--ease-standard), transform var(--motion-fast) var(--ease-standard);
}
.dropdown-wrapper:hover .dropdown-menu {
    opacity: 1;
    transform: translateY(0);
    pointer-events: auto;
}

/* -----------------------------
 * 4. Toast Notification System
 * ----------------------------- */
#toast-container {
    position: fixed;
    bottom: 20px;
    left: 20px;
    z-index: 10000;
    display: flex;
    flex-direction: column;
    gap: 10px;
    pointer-events: none;
}

.toast {
    background: white;
    color: #333;
    padding: 12px 20px;
    border-radius: 8px;
    box-shadow: 0 4px 15px rgba(0,0,0,0.15);
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 0.95rem;
    font-weight: 500;
    opacity: 0;
    transform: translateY(20px);
    transition: all var(--motion-normal) var(--ease-standard);
    pointer-events: auto;
}

.toast.toast-show {
    opacity: 1;
    transform: translateY(0);
}

.toast.toast-hide {
    opacity: 0;
    transform: translateY(-10px);
}

.toast-success i { color: #2e7d32; }
.toast-error i { color: #d32f2f; }
.toast-info i { color: var(--primary, #9a0002); }

/* -----------------------------
 * 5. Skeleton Loading
 * ----------------------------- */
.skeleton {
    background: #f0f0f0;
    background: linear-gradient(90deg, #f0f0f0 25%, #e0e0e0 50%, #f0f0f0 75%);
    background-size: 200% 100%;
    animation: skeletonShimmer 1.5s infinite;
    border-radius: 4px;
    color: transparent !important;
}

.skeleton * {
    visibility: hidden;
}

@keyframes skeletonShimmer {
    0% { background-position: 200% 0; }
    100% { background-position: -200% 0; }
}

/* -----------------------------
 * 6. Specific Components
 * ----------------------------- */

/* Input Focus */
input:focus, textarea:focus, select:focus {
    outline: none;
    box-shadow: 0 0 0 3px var(--brand-primary-light);
    border-color: var(--primary, #9a0002);
    transition: all var(--motion-fast) var(--ease-standard);
}

/* Heart Icon (Wishlist) */
.wishlist-btn {
    transition: color var(--motion-fast) ease, transform var(--motion-fast) var(--ease-smooth);
}
.wishlist-btn.active {
    color: var(--primary, #9a0002);
    animation: pop var(--motion-fast) var(--ease-smooth);
}
.wishlist-btn.active i {
    font-weight: 900; /* Solid heart */
}

/* Cart Row Collapse */
.cart-item-row {
    transition: all var(--motion-normal) var(--ease-standard);
}
.cart-item-row.removing {
    opacity: 0;
    transform: translateX(-20px);
}

/* Form Validation */
.form-error {
    animation: slideDownFade var(--motion-fast) var(--ease-standard);
}
@keyframes slideDownFade {
    0% { opacity: 0; transform: translateY(-5px); }
    100% { opacity: 1; transform: translateY(0); }
}

/* Variant Transitions */
.variant-label {
    transition: all var(--motion-fast) var(--ease-standard) !important;
}
.variant-option input[type="radio"]:checked + .variant-label {
    transform: scale(1.05);
}