/* ============================================================ AG54 — Performance & UX Enhancement CSS v1.0 Add last in after all other stylesheets ============================================================ */ /* ── 1. SCROLL PROGRESS BAR ─────────────────────────────────── */ .scroll-progress { position: fixed; top: 0; left: 0; width: 0%; height: 2px; background: linear-gradient(90deg, var(--color-accent) 0%, #C4654A 100%); z-index: 200; transition: width 80ms linear; transform-origin: left; } /* ── 2. PAGE TRANSITION OVERLAY ─────────────────────────────── */ .page-transition { position: fixed; inset: 0; background: var(--color-bg); z-index: 999; pointer-events: none; opacity: 0; transition: opacity 200ms ease; } .page-transition.entering { opacity: 1; pointer-events: all; } /* ── 3. BACK TO TOP BUTTON ──────────────────────────────────── */ .back-to-top { position: fixed; bottom: calc(var(--space-8) + 28px); /* above ticker */ right: var(--space-6); width: 42px; height: 42px; border-radius: var(--radius-full); background: var(--color-surface); border: 0.5px solid var(--color-border); color: var(--color-text-muted); display: flex; align-items: center; justify-content: center; cursor: pointer; opacity: 0; transform: translateY(12px); transition: opacity 250ms var(--ease-out), transform 250ms var(--ease-out), background 150ms, border-color 150ms; z-index: 90; box-shadow: 0 4px 16px rgba(0, 0, 0, 0.25); } .back-to-top.visible { opacity: 1; transform: translateY(0); } .back-to-top:hover { background: var(--color-surface-2); border-color: var(--color-accent); color: var(--color-accent); } .back-to-top:focus-visible { outline: 2px solid var(--color-accent); outline-offset: 3px; } /* On map page, ticker exists so offset more */ .has-ticker .back-to-top { bottom: calc(var(--space-8) + 52px); } /* ── 4. IMAGE SKELETON LOADER ───────────────────────────────── */ @keyframes skeleton-shimmer { 0% { background-position: -200% 0; } 100% { background-position: 200% 0; } } .img-skeleton { background: linear-gradient( 90deg, var(--color-surface) 25%, var(--color-surface-2) 50%, var(--color-surface) 75% ); background-size: 200% 100%; animation: skeleton-shimmer 1.6s ease-in-out infinite; } /* Applied via JS to images before load */ img.loading { opacity: 0; transition: opacity 300ms ease; } img.loaded { opacity: 1; } /* ── 5. LINK HOVER UNDERLINE ANIMATION ──────────────────────── */ .site-footer__links a { position: relative; } .site-footer__links a::after { content: ''; position: absolute; left: 0; bottom: -1px; width: 0; height: 1px; background: var(--color-accent); transition: width 220ms var(--ease-out); } .site-footer__links a:hover::after { width: 100%; } /* ── 6. PRODUCT CARD — micro-interaction improvements ──────── */ /* Faster overlay on hover */ .product-card__overlay { transition: opacity 200ms var(--ease-out) !important; } /* Card focus state */ .product-card:focus-visible { outline: 2px solid var(--color-accent); outline-offset: 3px; border-radius: var(--radius-md); } /* ── 7. HERO — text animation on load ───────────────────────── */ @keyframes hero-fade-up { from { opacity: 0; transform: translateY(20px); } to { opacity: 1; transform: translateY(0); } } .hero__eyebrow { animation: hero-fade-up 500ms 100ms both; } .hero__title { animation: hero-fade-up 600ms 250ms both; } .hero__subtitle { animation: hero-fade-up 500ms 400ms both; } .hero__actions { animation: hero-fade-up 500ms 550ms both; } /* ── 8. SECTION REVEAL — smoother ──────────────────────────── */ .js-reveal { opacity: 0; transform: translateY(16px); transition: opacity 550ms var(--ease-out), transform 550ms var(--ease-out); } .js-reveal.visible { opacity: 1; transform: translateY(0); } /* Stagger siblings */ .js-reveal:nth-child(2) { transition-delay: 80ms; } .js-reveal:nth-child(3) { transition-delay: 160ms; } .js-reveal:nth-child(4) { transition-delay: 240ms; } /* ── 9. FOCUS IMPROVEMENTS ──────────────────────────────────── */ /* Ensure skip link is actually usable */ .sr-only:focus { position: fixed !important; top: var(--space-4) !important; left: var(--space-4) !important; width: auto !important; height: auto !important; clip: auto !important; clip-path: none !important; z-index: 9999 !important; padding: var(--space-3) var(--space-6) !important; background: var(--color-accent) !important; color: var(--color-text-inverse) !important; border-radius: var(--radius-sm) !important; font-weight: 600 !important; text-decoration: none !important; } /* ── 10. REDUCED MOTION ─────────────────────────────────────── */ @media (prefers-reduced-motion: reduce) { .scroll-progress, .back-to-top, .hero__eyebrow, .hero__title, .hero__subtitle, .hero__actions, .js-reveal, .page-transition, img.loading, img.loaded, .product-card__overlay, .gallery__main-img { transition: none !important; animation: none !important; } .js-reveal { opacity: 1 !important; transform: none !important; } img.loading { opacity: 1 !important; } } /* ── 11. PRELOAD hint visual (LCP) ──────────────────────────── */ /* Hero image should never flash in — add aspect-ratio hold */ .hero__bg, .section-hero__bg { background: var(--color-surface); } /* ── 12. SMOOTH SCROLL on non-reduced-motion ─────────────────── */ @media (prefers-reduced-motion: no-preference) { html { scroll-behavior: smooth; } } /* ── 13. PRINT styles ───────────────────────────────────────── */ @media print { .site-header, .mobile-nav, .back-to-top, .scroll-progress, .hamburger, .theme-toggle, .lang-selector, .site-footer__socials, .gallery__arrow, .gallery__thumbs { display: none !important; } .gallery__main { position: static !important; } body { font-size: 12pt; color: #000; background: #fff; } }