/**
 * AIS School — Premium UI system (public site)
 * Typography, motion, cards, images, shadows, rounded corners
 */

:root {
    --font-head: 'Playfair Display', Georgia, 'Times New Roman', serif;
    --font-body: 'DM Sans', system-ui, -apple-system, 'Segoe UI', sans-serif;

    --brand-primary: #a73335;
    --brand-primary-dark: #8b1a1a;
    --brand-navy: #1a2e6c;
    --brand-accent: #378ADD;

    --text-primary: #2c2c2c;
    --text-muted: #666;
    --surface: #ffffff;
    --surface-muted: #f5f6f8;
    --border-soft: rgba(0, 0, 0, 0.08);

    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 16px;
    --radius-xl: 20px;

    --shadow-soft: 0 4px 24px rgba(0, 0, 0, 0.06);
    --shadow-card: 0 8px 32px rgba(0, 0, 0, 0.08);
    --shadow-hover: 0 16px 48px rgba(0, 0, 0, 0.12);
    --shadow-brand: 0 12px 32px rgba(167, 51, 53, 0.22);

    --ease-premium: cubic-bezier(0.22, 1, 0.36, 1);
    --transition-fast: 0.25s var(--ease-premium);
    --transition: 0.4s var(--ease-premium);
    --transition-slow: 0.7s var(--ease-premium);
}

html {
    scroll-behavior: smooth;
}

@media (prefers-reduced-motion: reduce) {
    html {
        scroll-behavior: auto;
    }

    *,
    *::before,
    *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
}

/* —— Typography —— */
body.site-layout,
body.site-layout--hero,
body.premium-site {
    font-family: var(--font-body);
    color: var(--text-primary);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    line-height: 1.65;
}

.site-layout h1,
.site-layout h2,
.site-layout h3,
.site-layout .adm-breadcrumb h1,
.site-layout .adm-main h2,
.site-layout .adm-main h3,
.site-layout .section-title {
    font-family: var(--font-head);
    font-weight: 700;
    letter-spacing: -0.02em;
}

/* —— Scroll reveal —— */
.reveal,
.fade-up {
    opacity: 0;
    transform: translateY(40px);
    transition: opacity var(--transition-slow), transform var(--transition-slow);
    will-change: opacity, transform;
}

.reveal.visible,
.fade-up.visible {
    opacity: 1;
    transform: translateY(0);
}

.reveal-left {
    opacity: 0;
    transform: translateX(-48px);
    transition: opacity var(--transition-slow), transform var(--transition-slow);
    will-change: opacity, transform;
}

.reveal-left.visible {
    opacity: 1;
    transform: translateX(0);
}

.reveal-right {
    opacity: 0;
    transform: translateX(48px);
    transition: opacity var(--transition-slow), transform var(--transition-slow);
    will-change: opacity, transform;
}

.reveal-right.visible {
    opacity: 1;
    transform: translateX(0);
}

.hero .fade-up,
.hero .reveal,
.hero-stats.fade-up,
.hero-stats.reveal,
.branch-hero .fade-up,
.branch-hero .reveal,
.branch-hero .reveal-left,
.branch-hero .reveal-right {
    opacity: 1;
    transform: none;
}

@media (prefers-reduced-motion: reduce) {
    .reveal,
    .fade-up,
    .reveal-left,
    .reveal-right {
        opacity: 1 !important;
        transform: none !important;
    }
}

/* —— Inner page shell —— */
.site-layout .adm-page {
    background: var(--surface-muted);
}

.site-layout .adm-breadcrumb {
    background: linear-gradient(180deg, #fff 0%, var(--surface-muted) 100%);
    border-bottom: 1px solid var(--border-soft);
}

.site-layout .adm-breadcrumb h1 {
    font-size: clamp(1.5rem, 3vw, 2rem);
    color: var(--text-primary);
}

.site-layout .adm-main {
    border: 1px solid var(--border-soft);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-soft);
    transition: box-shadow var(--transition);
}

.site-layout .adm-main:hover {
    box-shadow: var(--shadow-card);
}

/* —— Cards —— */
.site-layout .adm-desk,
.site-layout .adm-infra-card,
.site-layout .adm-faculty-card,
.site-layout .adm-fee-panel,
.site-layout .adm-note,
.site-layout .aca-side-block,
.site-layout .adm-accordion details,
.site-layout .about-block-card {
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-soft);
    border-color: var(--border-soft);
    transition: transform var(--transition), box-shadow var(--transition), border-color var(--transition-fast);
}

.site-layout .adm-infra-card:hover,
.site-layout .adm-faculty-card:hover,
.site-layout .adm-desk:hover,
.site-layout .adm-fee-panel:hover,
.site-layout .about-block-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-hover);
}

/* —— Image zoom —— */
.site-layout .adm-infra-card,
.site-layout .adm-faculty-card,
.site-layout .aca-img-grid > *,
.site-layout .gallery-card .img-wrap,
.site-layout .cms-page-body img,
.site-layout .about-block-card .block-media {
    overflow: hidden;
}

.site-layout .adm-infra-card img,
.site-layout .adm-faculty-card img,
.site-layout .aca-img-grid img,
.site-layout .gallery-card img,
.site-layout .cms-page-body img,
.site-layout .about-block-card img {
    transition: transform var(--transition);
}

.site-layout .adm-infra-card:hover img,
.site-layout .adm-faculty-card:hover img,
.site-layout .aca-img-grid > *:hover img,
.site-layout .gallery-card:hover img,
.site-layout .about-block-card:hover img {
    transform: scale(1.06);
}

/* —— Gallery —— */
.site-layout .gallery-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 16px;
    padding: 40px 30px;
    max-width: 1200px;
    margin: 0 auto;
}

.site-layout .gallery-card {
    border-radius: var(--radius-lg);
    overflow: hidden;
    border: 1px solid var(--border-soft);
    background: var(--surface);
    box-shadow: var(--shadow-soft);
    transition: transform var(--transition), box-shadow var(--transition), border-color var(--transition-fast);
}

.site-layout .gallery-card:hover {
    transform: translateY(-6px);
    box-shadow: var(--shadow-hover);
    border-color: rgba(55, 138, 221, 0.35);
}

.site-layout .gallery-card .img-wrap {
    width: 100%;
    height: 360px;
    overflow: hidden;
}

.site-layout .gallery-card img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.site-layout .gallery-card .card-label {
    padding: 12px 14px;
    font-size: 13px;
    font-weight: 600;
    color: var(--text-primary);
    display: flex;
    align-items: center;
    gap: 8px;
}

.site-layout .gallery-card .card-label i {
    color: var(--brand-accent);
}

@media (max-width: 900px) {
    .site-layout .gallery-grid {
        grid-template-columns: repeat(2, 1fr);
        padding: 24px 16px;
    }
}

@media (max-width: 520px) {
    .site-layout .gallery-grid {
        grid-template-columns: 1fr;
    }

    .site-layout .gallery-card .img-wrap {
        height: 260px;
    }
}

/* —— Student corner grids —— */
.site-layout .sc-gallery-grid .sc-gallery-item,
.site-layout .sc-club-grid > * {
    border-radius: var(--radius-md);
    overflow: hidden;
    box-shadow: var(--shadow-soft);
    transition: transform var(--transition), box-shadow var(--transition);
}

.site-layout .sc-gallery-grid .sc-gallery-item:hover,
.site-layout .sc-club-grid > *:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-hover);
}

/* —— Banners —— */
.site-layout .aca-banner {
    box-shadow: inset 0 -40px 60px rgba(0, 0, 0, 0.15);
}

/* —— Sidebar —— */
.site-layout .adm-sidebar a,
.site-layout .about-sidebar a {
    transition: color var(--transition-fast), background var(--transition-fast), padding-left var(--transition-fast);
    border-radius: var(--radius-sm);
}

.site-layout .adm-sidebar a:hover,
.site-layout .about-sidebar a:hover {
    padding-left: 6px;
}

/* —— Buttons & links —— */
.site-layout .adm-main a,
.site-layout a.premium-link {
    transition: color var(--transition-fast);
}

.site-layout .btn,
.site-layout button[type="submit"] {
    transition: transform var(--transition-fast), box-shadow var(--transition-fast), background var(--transition-fast);
}

.site-layout .btn:hover,
.site-layout button[type="submit"]:hover {
    transform: translateY(-2px);
}

/* —— Home branch picker —— */
.branches-section .section-title {
    font-family: var(--font-head);
}

.branch-card {
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-card);
    transition: transform var(--transition), box-shadow var(--transition);
}

.branch-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-hover);
}

.branch-card .branch-img-placeholder img,
.branch-card .branch-img-placeholder video {
    transition: transform var(--transition-slow);
}

.branch-card:hover .branch-img-placeholder img,
.branch-card:hover .branch-img-placeholder video {
    transform: scale(1.05);
}

.feature-card {
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-soft);
    transition: transform var(--transition), box-shadow var(--transition);
}

.feature-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-hover);
}

.branches-section .section-title,
.why-heading {
    font-family: var(--font-head);
}

/* —— Forms —— */
.site-layout input[type="text"],
.site-layout input[type="email"],
.site-layout input[type="tel"],
.site-layout input[type="number"],
.site-layout select,
.site-layout textarea {
    border-radius: var(--radius-sm);
    transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
}

.site-layout input:focus,
.site-layout select:focus,
.site-layout textarea:focus {
    outline: none;
    box-shadow: 0 0 0 3px rgba(167, 51, 53, 0.12);
}

/* —— Accordion —— */
.site-layout .adm-accordion summary {
    transition: color var(--transition-fast), background var(--transition-fast);
}

.site-layout .adm-accordion summary:hover {
    background: rgba(167, 51, 53, 0.04);
}

/* —— Carousel —— */
.site-layout .aca-carousel {
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-soft);
    overflow: hidden;
}

.site-layout .aca-carousel-btn {
    transition: transform var(--transition-fast), background var(--transition-fast);
}

.site-layout .aca-carousel-btn:hover {
    transform: translateY(-50%) scale(1.08);
}

/* —— Premium utility classes —— */
.premium-card {
    background: var(--surface);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-soft);
    transition: transform var(--transition), box-shadow var(--transition);
}

.premium-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-hover);
}

.img-zoom-wrap {
    overflow: hidden;
    border-radius: var(--radius-md);
}

.img-zoom-wrap img {
    transition: transform var(--transition);
}

.img-zoom-wrap:hover img {
    transform: scale(1.06);
}