/* ==========================================================================
   Animations — Scroll-triggered + Prefers-reduced-motion
   ========================================================================== */

/* Base animation state — hidden until triggered */
[data-animate] {
    opacity: 0;
    transform: translateY(24px);
    transition: opacity 0.6s ease, transform 0.6s ease;
}

[data-animate].is-visible {
    opacity: 1;
    transform: translateY(0);
}

/* Directional variants */
[data-animate="fade-up"] {
    transform: translateY(24px);
}

[data-animate="fade-down"] {
    transform: translateY(-24px);
}

[data-animate="fade-left"] {
    transform: translateX(-24px);
}

[data-animate="fade-right"] {
    transform: translateX(24px);
}

[data-animate="fade-in"] {
    transform: none;
}

[data-animate="scale-up"] {
    transform: scale(0.95);
}

[data-animate="fade-up"].is-visible,
[data-animate="fade-down"].is-visible,
[data-animate="fade-left"].is-visible,
[data-animate="fade-right"].is-visible,
[data-animate="fade-in"].is-visible,
[data-animate="scale-up"].is-visible {
    opacity: 1;
    transform: none;
}

/* Stagger delays for grids */
[data-animate-delay="100"] { transition-delay: 100ms; }
[data-animate-delay="200"] { transition-delay: 200ms; }
[data-animate-delay="300"] { transition-delay: 300ms; }
[data-animate-delay="400"] { transition-delay: 400ms; }
[data-animate-delay="500"] { transition-delay: 500ms; }
[data-animate-delay="600"] { transition-delay: 600ms; }
[data-animate-delay="700"] { transition-delay: 700ms; }

/* Pulse animation for cart badge */
@keyframes pulse {
    0% { transform: scale(1); }
    50% { transform: scale(1.15); }
    100% { transform: scale(1); }
}

.pulse {
    animation: pulse 0.4s ease;
}

/* Shimmer for loading placeholders */
@keyframes shimmer {
    0% { background-position: -200% 0; }
    100% { background-position: 200% 0; }
}

.shimmer {
    background: linear-gradient(90deg, var(--color-sand) 25%, var(--color-cream) 50%, var(--color-sand) 75%);
    background-size: 200% 100%;
    animation: shimmer 1.5s ease infinite;
}

/* Announcement bar slide */
@keyframes slide-up {
    0% { transform: translateY(100%); opacity: 0; }
    100% { transform: translateY(0); opacity: 1; }
}

.announcement-slide-enter {
    animation: slide-up 0.4s ease forwards;
}

/* Progress bar fill */
@keyframes fill-progress {
    from { width: 0; }
}

.progress-fill {
    animation: fill-progress 0.8s ease forwards;
}

/* Calculating spinner */
@keyframes calculating-dots {
    0%, 20% { opacity: 0; }
    50% { opacity: 1; }
    100% { opacity: 0; }
}

.calculating-dot {
    animation: calculating-dots 1.4s infinite;
}
.calculating-dot:nth-child(2) { animation-delay: 0.2s; }
.calculating-dot:nth-child(3) { animation-delay: 0.4s; }

/* Respect 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;
    }

    [data-animate] {
        opacity: 1;
        transform: none;
        transition: none;
    }
}