/* Accessibility, motion, and utility helpers */

.skip-link {
    position: absolute;
    top: -100%;
    left: 1rem;
    z-index: 9999;
    padding: 0.75rem 1.25rem;
    background: var(--primary);
    color: #fff;
    font-weight: 600;
    font-size: var(--text-sm);
    border-radius: var(--radius-md);
    text-decoration: none;
    transition: top var(--duration-fast) var(--ease-out);
}

.skip-link:focus {
    top: 1rem;
    outline: none;
    box-shadow: var(--focus-ring);
}

:focus-visible {
    outline: 2px solid var(--primary);
    outline-offset: var(--focus-ring-offset);
}

:focus:not(:focus-visible) {
    outline: none;
}

.visually-hidden {
    position: absolute !important;
    width: 1px !important;
    height: 1px !important;
    padding: 0 !important;
    margin: -1px !important;
    overflow: hidden !important;
    clip: rect(0, 0, 0, 0) !important;
    white-space: nowrap !important;
    border: 0 !important;
}

/* Scroll reveal animations */
[data-animate] {
    opacity: 0;
    transform: translateY(20px);
    transition:
        opacity var(--duration-slow) var(--ease-out),
        transform var(--duration-slow) var(--ease-out);
}

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

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

[data-animate="zoom-in"] {
    transform: scale(0.97);
}

[data-animate].is-visible {
    opacity: 1;
    transform: none;
}

/* Stagger children */
[data-stagger] > * {
    opacity: 0;
    transform: translateY(16px);
    transition:
        opacity var(--duration-slow) var(--ease-out),
        transform var(--duration-slow) var(--ease-out);
}

[data-stagger].is-visible > * {
    opacity: 1;
    transform: none;
}

[data-stagger].is-visible > *:nth-child(1) { transition-delay: 0ms; }
[data-stagger].is-visible > *:nth-child(2) { transition-delay: 60ms; }
[data-stagger].is-visible > *:nth-child(3) { transition-delay: 120ms; }
[data-stagger].is-visible > *:nth-child(4) { transition-delay: 180ms; }
[data-stagger].is-visible > *:nth-child(5) { transition-delay: 240ms; }
[data-stagger].is-visible > *:nth-child(6) { transition-delay: 300ms; }

/* 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],
    [data-stagger] > * {
        opacity: 1;
        transform: none;
    }
}

/* Image optimization */
img[loading="lazy"] {
    background: var(--bg-muted);
}

.img-cover {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

/* Text utilities */
.text-balance {
    text-wrap: balance;
}

.line-clamp-2 {
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

/* Section spacing utility */
.section-spacing {
    padding-block: var(--section-spacing);
}

.section-spacing-sm {
    padding-block: var(--section-spacing-sm);
}