/* site3 — motion, reveal & micro-interactions v8 */

@keyframes fade-up {
    from {
        opacity: 0;
        transform: translateY(28px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes fade-in {
    from { opacity: 0; }
    to { opacity: 1; }
}

@keyframes scale-in {
    from {
        opacity: 0;
        transform: scale(0.94);
    }
    to {
        opacity: 1;
        transform: scale(1);
    }
}

@keyframes hero-glow {
    0%, 100% { box-shadow: 0 0 0 0 rgba(240, 180, 41, 0.35); }
    50% { box-shadow: 0 0 0 8px rgba(240, 180, 41, 0); }
}

@keyframes mesh-drift {
    0%, 100% { transform: translate(0, 0) scale(1); }
    33% { transform: translate(2%, -1%) scale(1.02); }
    66% { transform: translate(-1%, 2%) scale(0.98); }
}

@keyframes line-grow {
    from { transform: scaleX(0); }
    to { transform: scaleX(1); }
}

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

@keyframes float-soft {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-6px); }
}

@keyframes pulse-dot {
    0%, 100% { transform: scale(1); box-shadow: 0 0 0 0 rgba(240, 180, 41, 0.5); }
    50% { transform: scale(1.15); box-shadow: 0 0 0 6px rgba(240, 180, 41, 0); }
}

@keyframes gradient-shift {
    0% { background-position: 0% 50%; }
    50% { background-position: 100% 50%; }
    100% { background-position: 0% 50%; }
}

@keyframes preview-flash {
    0% { opacity: 0.55; transform: translateY(6px); }
    100% { opacity: 1; transform: translateY(0); }
}

@keyframes drawer-item-in {
    from {
        opacity: 0;
        transform: translateX(12px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

@keyframes mini-logo-in {
    from {
        opacity: 0;
        transform: translateX(-8px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

/* Hero entrance */
.hero--guide .hero__eyebrow { animation: fade-up 0.55s cubic-bezier(0.22, 1, 0.36, 1) both; }
.hero--guide .hero__title { animation: fade-up 0.6s 0.08s cubic-bezier(0.22, 1, 0.36, 1) both; }
.hero--guide .hero__lead { animation: fade-up 0.6s 0.16s cubic-bezier(0.22, 1, 0.36, 1) both; }
.hero--guide .hero__trust-bar { animation: fade-up 0.6s 0.24s cubic-bezier(0.22, 1, 0.36, 1) both; }
.hero--guide .hero__price-anchor { animation: fade-up 0.6s 0.32s cubic-bezier(0.22, 1, 0.36, 1) both; }
.hero--guide .hero__cta { animation: fade-up 0.6s 0.4s cubic-bezier(0.22, 1, 0.36, 1) both; }
.hero--guide .hero__microtext { animation: fade-in 0.5s 0.5s ease both; }
.hero--guide .price-ladder { animation: fade-up 0.65s 0.45s cubic-bezier(0.22, 1, 0.36, 1) both; }

.hero--guide .hero__eyebrow {
    animation: fade-up 0.55s cubic-bezier(0.22, 1, 0.36, 1) both, hero-glow 2.5s 0.8s ease-in-out infinite;
}

.hero--guide::after {
    animation: mesh-drift 18s ease-in-out infinite;
}

.hero__trust-item {
    transition: transform 0.3s var(--ease-spring), box-shadow 0.3s ease, background 0.25s ease;
}

.hero__price-anchor {
    transition: transform 0.4s var(--ease-spring);
}

.hero__price-anchor:hover {
    transform: scale(1.02);
}

.price-ladder__node.is-active .price-ladder__dot {
    animation: pulse-dot 2s ease-in-out infinite;
}

.price-ladder__line {
    transform-origin: left center;
    animation: line-grow 0.9s 0.5s cubic-bezier(0.22, 1, 0.36, 1) both;
}

.price-ladder__preview.is-updating .price-ladder__preview-img,
.price-ladder__preview.is-updating .price-ladder__preview-body {
    animation: preview-flash 0.35s cubic-bezier(0.22, 1, 0.36, 1) both;
}

/* Scroll reveal */
.reveal {
    opacity: 0;
    transform: translateY(24px);
    transition:
        opacity 0.7s cubic-bezier(0.22, 1, 0.36, 1),
        transform 0.7s cubic-bezier(0.22, 1, 0.36, 1);
}

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

.reveal--scale {
    transform: translateY(20px) scale(0.97);
}

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

.reveal--delay-1 { transition-delay: 0.08s; }
.reveal--delay-2 { transition-delay: 0.16s; }
.reveal--delay-3 { transition-delay: 0.24s; }

.reveal-stagger > .reveal:nth-child(2) { transition-delay: 0.07s; }
.reveal-stagger > .reveal:nth-child(3) { transition-delay: 0.14s; }
.reveal-stagger > .reveal:nth-child(4) { transition-delay: 0.21s; }
.reveal-stagger > .reveal:nth-child(5) { transition-delay: 0.28s; }
.reveal-stagger > .reveal:nth-child(6) { transition-delay: 0.35s; }

/* Guide panels accent line */
.guide-panel.reveal.is-visible::before,
.kit-panel.reveal.is-visible::before {
    transform: scaleX(1);
}

/* Catalog & featured cards */
.catalog-item.reveal.is-visible,
.kits-featured__card.reveal.is-visible {
    transition-delay: calc(var(--reveal-i, 0) * 0.07s);
}

.item-image-wrap img,
.kits-featured__link img,
.hero-kit-card img,
.price-ladder__preview-img {
    transition: transform 0.55s cubic-bezier(0.22, 1, 0.36, 1);
}

.catalog-item:hover .item-image-wrap img,
.kits-featured__card:hover .kits-featured__link img,
.hero-kit-card:hover img {
    transform: scale(1.05);
}

/* Nav drawer stagger */
.nav-drawer.is-open .nav-main > ul > li,
.nav-drawer.is-open .nav-drawer__more li {
    animation: drawer-item-in 0.4s cubic-bezier(0.22, 1, 0.36, 1) both;
}

.nav-drawer.is-open .nav-main > ul > li:nth-child(1) { animation-delay: 0.04s; }
.nav-drawer.is-open .nav-main > ul > li:nth-child(2) { animation-delay: 0.08s; }
.nav-drawer.is-open .nav-main > ul > li:nth-child(3) { animation-delay: 0.12s; }
.nav-drawer.is-open .nav-main > ul > li:nth-child(4) { animation-delay: 0.16s; }
.nav-drawer.is-open .nav-drawer__more li:nth-child(1) { animation-delay: 0.22s; }
.nav-drawer.is-open .nav-drawer__more li:nth-child(2) { animation-delay: 0.26s; }
.nav-drawer.is-open .nav-drawer__more li:nth-child(3) { animation-delay: 0.3s; }
.nav-drawer.is-open .nav-drawer__more li:nth-child(4) { animation-delay: 0.34s; }
.nav-drawer.is-open .nav-drawer__more li:nth-child(5) { animation-delay: 0.38s; }
.nav-drawer.is-open .nav-drawer__more li:nth-child(6) { animation-delay: 0.42s; }
.nav-drawer.is-open .nav-drawer__phone { animation: drawer-item-in 0.4s 0.48s cubic-bezier(0.22, 1, 0.36, 1) both; }

.site-header--kits.site-header--scrolled .header-mini-logo {
    animation: mini-logo-in 0.35s cubic-bezier(0.22, 1, 0.36, 1) both;
}

/* Floating action buttons */
.chat-widget--guide .floating-btn {
    transition: transform 0.35s cubic-bezier(0.34, 1.56, 0.64, 1), box-shadow 0.35s ease;
}

.chat-widget--guide .floating-btn.is-visible-scroll {
    animation: float-soft 4s ease-in-out infinite;
}

.chat-widget--guide .btn-top.is-shown {
    opacity: 1;
    transform: scale(1);
    pointer-events: auto;
}

.chat-widget--guide .btn-top {
    opacity: 0;
    transform: scale(0.6);
    pointer-events: none;
    transition: opacity 0.3s ease, transform 0.35s cubic-bezier(0.34, 1.56, 0.64, 1);
}

/* FAQ */
.faq-accordion details {
    transition: border-color 0.25s ease, box-shadow 0.3s ease, transform 0.25s ease;
}

.faq-accordion details:hover {
    transform: translateY(-1px);
}

.faq-accordion details[open] {
    box-shadow: var(--shadow-card-hover);
    border-color: rgba(45, 138, 101, 0.25);
}

.faq-accordion summary {
    transition: color 0.2s ease;
}

.faq-accordion summary::after {
    transition: transform 0.3s var(--ease-spring), color 0.2s ease;
}

.faq-accordion details[open] summary::after {
    transform: rotate(45deg);
    color: var(--brand-primary);
}

.faq-accordion details[open] summary {
    color: var(--brand-primary);
}

/* Filter tags */
.filter-tag {
    transition: transform 0.25s var(--ease-spring), background 0.25s ease, border-color 0.25s ease, box-shadow 0.25s ease;
}

.filter-tag:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(26, 92, 66, 0.1);
}

.filter-tag.active {
    box-shadow: 0 4px 16px rgba(240, 180, 41, 0.35);
    transform: translateY(-1px);
}

/* Kit finder */
.kit-finder__opt {
    transition: transform 0.3s var(--ease-spring), border-color 0.2s ease, background 0.2s ease, box-shadow 0.3s ease;
}

.kit-finder__opt:hover {
    transform: translateY(-3px);
    box-shadow: 0 8px 24px rgba(26, 92, 66, 0.12);
}

.kit-finder__opt.is-selected {
    box-shadow: 0 4px 16px rgba(45, 138, 101, 0.22);
    transform: translateY(-1px);
}

.kit-finder__progress-bar {
    transition: width 0.55s cubic-bezier(0.22, 1, 0.36, 1);
}

/* Button ripple */
.btn--primary .btn-ripple {
    position: absolute;
    border-radius: 50%;
    transform: scale(0);
    animation: btn-ripple 0.55s ease-out forwards;
    background: rgba(255, 255, 255, 0.45);
    pointer-events: none;
}

@keyframes btn-ripple {
    to {
        transform: scale(4);
        opacity: 0;
    }
}

/* Footer links */
.footer-links a,
.footer-social a {
    transition: transform 0.2s ease, color 0.2s ease;
    display: inline-block;
}

.footer-links a:hover,
.footer-social a:hover {
    transform: translateX(3px);
}

/* Modal */
.modal.is-open .modal__container {
    animation: scale-in 0.35s cubic-bezier(0.22, 1, 0.36, 1) both;
}

.modal__overlay {
    animation: fade-in 0.25s ease both;
}

/* Step cards */
.step-card.reveal.is-visible .step-card__num {
    animation: scale-in 0.45s 0.15s cubic-bezier(0.34, 1.4, 0.64, 1) both;
}

@media (prefers-reduced-motion: reduce) {
    .reveal,
    .hero--guide .hero__eyebrow,
    .hero--guide .hero__title,
    .hero--guide .hero__lead,
    .hero--guide .hero__trust-bar,
    .hero--guide .hero__price-anchor,
    .hero--guide .hero__cta,
    .hero--guide .hero__microtext,
    .hero--guide .price-ladder,
    .hero--guide::after,
    .price-ladder__node.is-active .price-ladder__dot,
    .price-ladder__line,
    .chat-widget--guide .floating-btn.is-visible-scroll,
    .nav-drawer.is-open .nav-main > ul > li,
    .nav-drawer.is-open .nav-drawer__more li,
    .nav-drawer.is-open .nav-drawer__phone,
    .site-header--kits.site-header--scrolled .header-mini-logo,
    .step-card.reveal.is-visible .step-card__num {
        animation: none !important;
    }

    .reveal,
    .reveal--scale {
        opacity: 1;
        transform: none;
        transition: none !important;
    }

    .item-image-wrap img,
    .kits-featured__link img,
    .hero-kit-card img {
        transform: none !important;
    }

    .faq-accordion details:hover {
        transform: none;
    }
}