:root {
    --bg-color: #111111;
    --surface-color: #161718;
    --surface-alt: #1e2022;
    --text-color: #ffffff;
    --text-secondary: #888888;
    --border-color: #333333;
    --accent-red: #d32f2f;
    --contact-red: #d33a3a;
    --control-radius: 12px;
    --font-main: 'Montserrat', sans-serif;
    --tag-bg: #1a1a1a;
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: var(--font-main);
    background-color: var(--bg-color);
    color: var(--text-color);
    line-height: 1.6;
    min-height: 100vh;
    -webkit-font-smoothing: antialiased;
}

.loader-lock {
    overflow: hidden;
}

a {
    color: inherit;
    text-decoration: none;
}

.site-loader {
    position: fixed;
    inset: 0;
    z-index: 9999;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    gap: 1rem;
    background:
        radial-gradient(circle at 20% 15%, rgba(211, 47, 47, 0.22) 0%, transparent 42%),
        radial-gradient(circle at 80% 85%, rgba(255, 255, 255, 0.08) 0%, transparent 30%),
        rgba(10, 10, 10, 0.96);
    transition: opacity 0.38s ease, visibility 0.38s ease;
}

.site-loader.is-hidden {
    opacity: 0;
    visibility: hidden;
    pointer-events: none;
}

.butterfly-loader {
    position: relative;
    width: 4.2rem;
    height: 4.2rem;
    animation: loader-fly-core 1.8s linear infinite;
}

.butterfly-loader,
.butterfly-loader:before,
.butterfly-loader:after {
    animation-duration: 1.8s;
    animation-timing-function: linear;
    animation-iteration-count: infinite;
}

.butterfly-loader:before,
.butterfly-loader:after {
    content: "";
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 50%;
    transform-origin: 50% 100%;
    clip-path: polygon(0 0, 100% 0, 50% 100%);
}

.butterfly-loader:before {
    background: linear-gradient(135deg, #ff5a5a, var(--accent-red));
    animation-name: loader-fly-left;
}

.butterfly-loader:after {
    background: linear-gradient(225deg, #ffffff, #a3a3a3);
    animation-name: loader-fly-right;
}

.butterfly-loader span {
    position: absolute;
    left: 50%;
    top: 42%;
    width: 0.35rem;
    height: 1.4rem;
    transform: translate(-50%, -50%);
    border-radius: 999px;
    background: linear-gradient(180deg, #f7f7f7, #8a8a8a);
    box-shadow: 0 0 15px rgba(255, 255, 255, 0.2);
}

.loader-text {
    font-size: 0.74rem;
    letter-spacing: 0.14em;
    text-transform: uppercase;
    color: var(--text-secondary);
}

@keyframes loader-fly-core {
    from,
    to {
        transform: translateY(0);
    }

    50% {
        transform: translateY(24%);
    }
}

@keyframes loader-fly-left {
    from,
    50%,
    to {
        transform: rotate(62deg);
    }

    25%,
    75% {
        transform: rotate(118deg);
    }
}

@keyframes loader-fly-right {
    from,
    50%,
    to {
        transform: rotate(298deg);
    }

    25%,
    75% {
        transform: rotate(242deg);
    }
}

.case-page {
    max-width: 1600px;
    margin: 0 auto;
    border-left: 1px solid var(--border-color);
    border-right: 1px solid var(--border-color);
}

.site-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 2rem;
    border-bottom: 1px solid var(--border-color);
    position: relative;
}

.logo {
    font-weight: 700;
    font-size: 1.2rem;
    letter-spacing: 2px;
    text-transform: uppercase;
}

.site-nav {
    display: flex;
    align-items: center;
    gap: 2rem;
}

.site-nav a {
    font-size: 0.9rem;
    text-transform: uppercase;
    font-weight: 500;
    letter-spacing: 1px;
    transition: color 0.25s ease;
}

.site-nav a:not(.btn-contact):hover {
    color: var(--accent-red);
}

.btn-contact {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    line-height: 1.1;
    padding: 0.55rem 1.2rem;
    border: 1px solid var(--contact-red);
    background: linear-gradient(140deg, #d33a3a 0%, #b72a2a 100%);
    color: #ffffff;
    border-radius: var(--control-radius);
    box-shadow: 0 10px 24px rgba(211, 47, 47, 0.24);
    transition: transform 0.2s ease, box-shadow 0.2s ease, background 0.2s ease, border-color 0.2s ease;
}

.site-nav .btn-contact:hover {
    background: linear-gradient(140deg, #de4343 0%, #c12b2b 100%);
    border-color: #de4343;
    color: #ffffff;
    transform: translateY(-1px);
    box-shadow: 0 12px 28px rgba(211, 47, 47, 0.3);
}

.burger-menu {
    display: none;
    flex-direction: column;
    gap: 6px;
    background: none;
    border: none;
    cursor: pointer;
    z-index: 101;
}

.burger-menu span {
    display: block;
    width: 28px;
    height: 2px;
    background-color: var(--text-color);
    transition: all 0.3s;
}

.site-header.active .burger-menu span:nth-child(1) {
    transform: rotate(45deg) translate(5px, 6px);
}

.site-header.active .burger-menu span:nth-child(2) {
    opacity: 0;
}

.site-header.active .burger-menu span:nth-child(3) {
    transform: rotate(-45deg) translate(5px, -6px);
}

.no-scroll {
    overflow: hidden;
}

.case-hero {
    display: grid;
    grid-template-columns: minmax(320px, 1fr) minmax(340px, 520px);
    gap: 2rem;
    padding: 2.6rem 2rem;
}

.hero-copy {
    animation: reveal-up 0.6s ease both;
}

.eyebrow {
    font-size: 0.8rem;
    letter-spacing: 0.12em;
    text-transform: uppercase;
    color: var(--text-secondary);
    margin-bottom: 1rem;
}

.hero-copy h1 {
    font-size: clamp(2.5rem, 5vw, 4rem);
    line-height: 1.1;
    font-weight: 300;
    margin-bottom: 1.2rem;
    letter-spacing: -2px;
}

.hero-text {
    max-width: 640px;
    color: var(--text-secondary);
    font-size: 1.05rem;
    margin-bottom: 1.5rem;
}

.hero-tags {
    list-style: none;
    display: flex;
    flex-wrap: wrap;
    gap: 0.7rem;
}

.hero-tags li {
    padding: 0.5rem 1rem;
    border-radius: var(--control-radius);
    background-color: var(--surface-alt);
    border: 1px solid var(--border-color);
    font-size: 0.82rem;
}

.hero-visual {
    min-height: 340px;
    border-radius: 18px;
    overflow: hidden;
    border: 1px solid var(--border-color);
    position: relative;
    animation: reveal-up 0.8s ease both;
}

.hero-visual::after {
    content: "";
    position: absolute;
    inset: 0;
    background: linear-gradient(180deg, rgba(0, 0, 0, 0.15), rgba(0, 0, 0, 0.5));
    pointer-events: none;
}

.hero-visual img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
}

.kpi-section,
.detail-section,
.timeline-section,
.gallery-section,
.landing-showcase-section,
.brand-assets-section,
.creative-events-section,
.project-summary-section,
.case-footer {
    border-top: 1px solid var(--border-color);
}

.kpi-section {
    padding: 0;
    display: grid;
    grid-template-columns: repeat(4, 1fr);
}

.kpi-card {
    padding: 2rem;
    border-right: 1px solid var(--border-color);
    background: linear-gradient(180deg, rgba(255, 255, 255, 0.02), transparent);
}

.kpi-card:last-child {
    border-right: none;
}

.kpi-value {
    font-size: clamp(1.05rem, 1.7vw, 1.35rem);
    font-weight: 500;
    color: var(--text-color);
    margin-bottom: 0.45rem;
    letter-spacing: 0.01em;
}

.kpi-label {
    color: var(--text-secondary);
    font-size: 0.92rem;
}

.detail-section {
    display: grid;
    grid-template-columns: 1fr 1fr;
}

.detail-card {
    padding: 2.3rem 2rem;
    border-right: 1px solid var(--border-color);
}

.detail-card:last-child {
    border-right: none;
}

.detail-card h2,
.timeline-section h2,
.gallery-header h2,
.landing-header h2,
.assets-header h2,
.creative-header h2 {
    font-size: 2rem;
    font-weight: 400;
    text-transform: uppercase;
    margin-bottom: 1rem;
}

.detail-card p {
    color: var(--text-secondary);
    margin-bottom: 1rem;
}

.detail-card ul {
    list-style: none;
}

.detail-card li {
    color: var(--text-secondary);
    margin-bottom: 0.6rem;
    padding-left: 1.1rem;
    position: relative;
}

.detail-card li::before {
    content: "";
    width: 0.38rem;
    height: 0.38rem;
    border-radius: 50%;
    background-color: var(--accent-red);
    position: absolute;
    left: 0;
    top: 0.62rem;
}

.timeline-section {
    padding: 2.3rem 2rem;
}

.timeline-grid {
    margin-top: 1.1rem;
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1rem;
}

.phase-card {
    background-color: var(--surface-color);
    border: 1px solid var(--border-color);
    border-radius: 14px;
    padding: 1.3rem 1.2rem;
    transition: transform 0.25s ease, border-color 0.25s ease;
}

.phase-card:hover {
    transform: translateY(-4px);
    border-color: #484b52;
}

.phase-week {
    display: inline-block;
    color: var(--accent-red);
    border: 1px solid rgba(211, 47, 47, 0.55);
    border-radius: var(--control-radius);
    font-size: 0.76rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    padding: 0.2rem 0.7rem;
    margin-bottom: 0.75rem;
}

.phase-card h3 {
    font-size: 1.15rem;
    font-weight: 500;
    margin-bottom: 0.45rem;
}

.phase-card p {
    color: var(--text-secondary);
    font-size: 0.95rem;
}

.gallery-section {
    padding: 2.3rem 2rem;
}

.landing-showcase-section {
    padding: 2.3rem 2rem;
}

.gallery-header p {
    color: var(--text-secondary);
    max-width: 720px;
    margin-bottom: 1.25rem;
}

.landing-header p {
    color: var(--text-secondary);
    max-width: 720px;
    margin-bottom: 1.25rem;
}

.gallery-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    grid-auto-rows: 240px;
    gap: 1rem;
}

.landing-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 1rem;
}

.landing-page-controls {
    display: flex;
    align-items: center;
    flex-wrap: wrap;
    gap: 0.6rem;
    margin-bottom: 0.95rem;
}

.landing-page-controls--bottom {
    margin-top: 0.95rem;
    margin-bottom: 0;
}

.landing-page-button {
    border: 1px solid rgba(255, 255, 255, 0.15);
    background: rgba(255, 255, 255, 0.02);
    color: var(--text-secondary);
    font: inherit;
    font-size: 0.8rem;
    letter-spacing: 0.02em;
    text-transform: none;
    border-radius: var(--control-radius);
    padding: 0.48rem 0.85rem;
    cursor: pointer;
    transition: border-color 0.2s ease, color 0.2s ease, background-color 0.2s ease;
}

.landing-page-button:hover {
    background: rgba(255, 255, 255, 0.08);
    border-color: rgba(255, 255, 255, 0.3);
    color: var(--text-color);
}

.landing-page-button.is-active {
    border-color: rgba(255, 255, 255, 0.38);
    color: var(--text-color);
    background-color: rgba(255, 255, 255, 0.1);
}

.gallery-item {
    border: 1px solid var(--border-color);
    border-radius: 14px;
    overflow: hidden;
    position: relative;
}

.landing-item {
    border: 1px solid var(--border-color);
    border-radius: 14px;
    overflow: hidden;
}

.landing-item.is-hidden {
    display: none;
}

.gallery-item.large {
    grid-column: span 2;
    grid-row: span 2;
}

.landing-item img {
    width: 100%;
    height: auto;
    object-fit: contain;
    display: block;
    background-color: #141414;
}

.gallery-item img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    filter: saturate(95%);
    transition: transform 0.35s ease;
}

.gallery-item:hover img {
    transform: scale(1.04);
}

.gallery-item figcaption {
    position: absolute;
    left: 0;
    right: 0;
    bottom: 0;
    padding: 0.7rem 0.9rem;
    font-size: 0.8rem;
    color: #ffffff;
    background: linear-gradient(180deg, transparent 0%, rgba(0, 0, 0, 0.68) 100%);
}

.landing-item figcaption {
    color: var(--text-secondary);
    font-size: 0.8rem;
    padding: 0.75rem 0.9rem 0.85rem;
}

.brand-assets-section {
    padding: 2.3rem 2rem;
}

.assets-header p {
    color: var(--text-secondary);
    max-width: 760px;
    margin: 0.4rem 0 1.3rem;
}

.assets-grid {
    display: grid;
    grid-template-columns: 1.35fr 1fr;
    gap: 1rem;
}

.asset-card {
    background-color: var(--surface-color);
    border: 1px solid var(--border-color);
    border-radius: 14px;
    overflow: hidden;
}

.asset-visual img {
    width: 100%;
    height: auto;
    display: block;
}

.asset-caption {
    color: var(--text-secondary);
    font-size: 0.9rem;
    padding: 1rem 1rem 1.1rem;
}

.asset-logo-card {
    padding: 1rem;
}

.asset-logo-wrap {
    min-height: 220px;
    background-color: #ffffff;
    border-radius: 10px;
    border: 1px solid #f0f0f0;
    display: flex;
    justify-content: center;
    align-items: center;
    margin-bottom: 0.9rem;
}

.asset-logo-wrap img {
    width: min(230px, 100%);
    height: auto;
    display: block;
}

.asset-logo-card h3 {
    font-size: 1.1rem;
    font-weight: 500;
    margin-bottom: 0.4rem;
}

.asset-logo-card p {
    color: var(--text-secondary);
    font-size: 0.92rem;
}

.social-media-section {
    padding: 2.3rem 2rem;
    border-top: 1px solid var(--border-color);
}

.creative-events-section {
    padding: 2.3rem 2rem;
    border-top: 1px solid var(--border-color);
}

.social-header {
    margin-bottom: 1.5rem;
}

.creative-header {
    margin-bottom: 1.5rem;
}

.social-header h2 {
    font-size: 2rem;
    font-weight: 400;
    text-transform: uppercase;
    margin-bottom: 0.4rem;
}

.creative-header h2 {
    font-size: 2rem;
    font-weight: 400;
    text-transform: uppercase;
    margin-bottom: 0.4rem;
}

.social-header p {
    color: var(--text-secondary);
    max-width: 720px;
}

.creative-header p {
    color: var(--text-secondary);
    max-width: 720px;
}

.social-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 1rem;
    max-width: 900px;
    margin: 0 auto;
}

.creative-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 1rem;
    max-width: 100%;
    margin: 0;
}

.social-card {
    background-color: var(--surface-color);
    border: 1px solid var(--border-color);
    border-radius: 14px;
    overflow: hidden;
    transition: transform 0.25s ease, box-shadow 0.25s ease;
}

.social-card:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.3);
}

.social-card img {
    width: 100%;
    height: 300px;
    object-fit: contain;
    display: block;
    background-color: #1a1a1a;
}

.social-caption {
    color: var(--text-secondary);
    font-size: 0.85rem;
    padding: 0.8rem 1rem 0.9rem;
    line-height: 1.4;
}

.project-summary-section {
    padding: 2.3rem 2rem;
}

.project-summary-content {
    max-width: 62rem;
}

.project-summary-kicker {
    font-size: 0.76rem;
    letter-spacing: 0.14em;
    text-transform: uppercase;
    color: var(--text-secondary);
    margin-bottom: 0.75rem;
}

.project-summary-content h2 {
    font-size: 2rem;
    font-weight: 400;
    text-transform: uppercase;
    margin-bottom: 0.9rem;
}

.project-summary-content p {
    color: var(--text-secondary);
    line-height: 1.65;
    max-width: 56rem;
}

.case-footer {
    padding: 1.4rem 2rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-size: 0.85rem;
    color: var(--text-secondary);
    text-transform: uppercase;
}

.case-footer a {
    color: var(--text-color);
    letter-spacing: 0.05em;
}

/* Dribbble-like grouped image layout */
.dribbble-case .gallery-section,
.dribbble-case .landing-showcase-section,
.dribbble-case .brand-assets-section,
.dribbble-case .social-media-section,
.dribbble-case .creative-events-section,
.dribbble-case .project-summary-section {
    border-top: none;
    padding: 0 2rem 2.6rem;
}

.dribbble-case .gallery-header,
.dribbble-case .landing-header,
.dribbble-case .assets-header,
.dribbble-case .social-header,
.dribbble-case .creative-header {
    padding: 2.3rem 0 0.9rem;
    margin-bottom: 0;
}

.dribbble-case .hero-visual {
    min-height: auto;
}

.dribbble-case .hero-visual img {
    height: auto;
    object-fit: contain;
}

.dribbble-case .visual-group + .visual-group {
    margin-top: 2rem;
}

.dribbble-case .visual-group-title {
    font-size: 0.76rem;
    letter-spacing: 0.14em;
    text-transform: uppercase;
    color: var(--text-secondary);
    margin-bottom: 0.75rem;
}

.dribbble-case .gallery-grid,
.dribbble-case .landing-grid,
.dribbble-case .assets-grid,
.dribbble-case .social-grid,
.dribbble-case .creative-grid {
    display: grid;
    grid-template-columns: repeat(12, minmax(0, 1fr));
    gap: 1rem;
    margin: 0;
    max-width: 100%;
}

.dribbble-case .gallery-grid {
    grid-auto-rows: auto;
}

.dribbble-case .gallery-item,
.dribbble-case .landing-item,
.dribbble-case .asset-card,
.dribbble-case .social-card {
    border: none;
    border-radius: 0;
    background: transparent;
    box-shadow: none;
    overflow: visible;
    transition: none;
}

.dribbble-case .gallery-item.large {
    grid-column: span 8;
    grid-row: auto;
}

.dribbble-case .gallery-grid .gallery-item:not(.large),
.dribbble-case .social-grid .social-card {
    grid-column: span 4;
}

.dribbble-case .assets-grid {
    grid-template-columns: repeat(10, minmax(0, 1fr));
    align-items: start;
    max-width: 54rem;
    margin-left: 0;
    margin-right: auto;
}

.dribbble-case .assets-grid .asset-card {
    grid-column: span 5;
}

.dribbble-case .assets-grid .asset-prostor-card {
    grid-column: span 6;
}

.dribbble-case .assets-grid .asset-flip-card {
    grid-column: span 4;
}

.dribbble-case .assets-grid .asset-olga-card,
.dribbble-case .assets-grid .asset-vector-card {
    grid-column: span 5;
}

.dribbble-case .landing-item {
    grid-column: span 12;
}

.dribbble-case .social-grid,
.dribbble-case .creative-grid {
    align-items: start;
    margin-left: 0;
    margin-right: auto;
}

.dribbble-case .social-grid {
    max-width: 62rem;
}

.dribbble-case .creative-grid {
    max-width: 62rem;
}

.dribbble-case .social-grid .story-cover-card {
    grid-column: span 4;
}

.dribbble-case .social-grid .story-vertical-card {
    grid-column: span 4;
}

.dribbble-case .creative-grid .social-card {
    grid-column: span 6;
}

.dribbble-case .creative-grid .creative-wide-card {
    grid-column: span 7;
}

.dribbble-case .creative-grid .creative-square-card {
    grid-column: span 5;
}

.dribbble-case .gallery-item img,
.dribbble-case .landing-item img,
.dribbble-case .asset-visual img,
.dribbble-case .social-card img {
    width: 100%;
    height: auto;
    display: block;
    border-radius: 16px;
    filter: none;
    background: transparent;
    transform: none;
    object-fit: contain;
}

.dribbble-case .social-card img {
    height: auto;
    background-color: #191919;
}

.dribbble-case .asset-flip-card .flip-card {
    display: grid;
    perspective: 1200px;
    transform-style: preserve-3d;
    cursor: pointer;
}

.dribbble-case .asset-flip-card .flip-face {
    grid-area: 1 / 1;
    width: 100%;
    height: auto;
    cursor: zoom-in;
    backface-visibility: hidden;
    -webkit-backface-visibility: hidden;
    transition: transform 0.72s cubic-bezier(0.2, 0.7, 0.2, 1), opacity 0.36s ease;
}

.dribbble-case .asset-flip-card .flip-front {
    transform: rotateY(0deg);
    opacity: 1;
}

.dribbble-case .asset-flip-card .flip-back {
    transform: rotateY(180deg);
    opacity: 0;
}

.dribbble-case .asset-flip-card:hover .flip-front,
.dribbble-case .asset-flip-card:focus-within .flip-front {
    transform: rotateY(-180deg);
    opacity: 0;
}

.dribbble-case .asset-flip-card:hover .flip-back,
.dribbble-case .asset-flip-card:focus-within .flip-back {
    transform: rotateY(0deg);
    opacity: 1;
}

.dribbble-case .gallery-item figcaption,
.dribbble-case .landing-item figcaption,
.dribbble-case .asset-caption,
.dribbble-case .social-caption {
    position: static;
    padding: 0;
    margin-top: 0.55rem;
    font-size: 0.8rem;
    color: var(--text-secondary);
    background: none;
    line-height: 1.35;
}

.dribbble-case .gallery-item:hover img,
.dribbble-case .social-card:hover {
    transform: none;
    box-shadow: none;
}

.dribbble-case .hero-visual img,
.dribbble-case .asset-visual img:not(.flip-face),
.dribbble-case .social-card img {
    cursor: zoom-in;
    transition: transform 0.35s ease;
}

.dribbble-case .landing-item img {
    cursor: default;
    transition: none;
}

.dribbble-case .hero-visual:hover img,
.dribbble-case .asset-visual:hover img:not(.flip-face),
.dribbble-case .social-card:hover img {
    transform: scale(1.035);
}

.dribbble-case .landing-item:hover img {
    transform: none;
}

.image-viewer {
    position: fixed;
    inset: 0;
    z-index: 10050;
    display: flex;
    justify-content: center;
    align-items: center;
    padding: 1.2rem;
    background: rgba(8, 8, 9, 0.92);
    opacity: 0;
    visibility: hidden;
    pointer-events: none;
    transition: opacity 0.24s ease, visibility 0.24s ease;
}

.image-viewer.is-open {
    opacity: 1;
    visibility: visible;
    pointer-events: auto;
}

.image-viewer__inner {
    position: relative;
    width: min(95vw, 1200px);
    max-height: 90vh;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.65rem;
}

.image-viewer__image {
    width: auto;
    max-width: 100%;
    max-height: 82vh;
    border-radius: 14px;
    object-fit: contain;
    box-shadow: 0 18px 50px rgba(0, 0, 0, 0.45);
}

.image-viewer__flip {
    width: 100%;
    display: flex;
    justify-content: center;
}

.image-viewer__flip-card {
    display: grid;
    perspective: 1200px;
    transform-style: preserve-3d;
    cursor: pointer;
    width: min(84vw, 680px);
    max-height: 72vh;
}

.image-viewer__flip-card .flip-face {
    grid-area: 1 / 1;
    width: 100%;
    max-height: 72vh;
    object-fit: contain;
    border-radius: 14px;
    backface-visibility: hidden;
    -webkit-backface-visibility: hidden;
    box-shadow: 0 18px 50px rgba(0, 0, 0, 0.45);
    transition: transform 0.72s cubic-bezier(0.2, 0.7, 0.2, 1), opacity 0.36s ease;
}

.image-viewer__flip-card .flip-front {
    transform: rotateY(0deg);
    opacity: 1;
}

.image-viewer__flip-card .flip-back {
    transform: rotateY(180deg);
    opacity: 0;
}

.image-viewer__flip-card:hover .flip-front,
.image-viewer__flip-card:focus-within .flip-front {
    transform: rotateY(-180deg);
    opacity: 0;
}

.image-viewer__flip-card:hover .flip-back,
.image-viewer__flip-card:focus-within .flip-back {
    transform: rotateY(0deg);
    opacity: 1;
}

.image-viewer__caption {
    color: #c4c4c4;
    font-size: 0.84rem;
    text-align: center;
}

.image-viewer__close {
    position: absolute;
    top: -0.2rem;
    right: -0.2rem;
    width: 2.25rem;
    height: 2.25rem;
    border: 1px solid #575757;
    border-radius: var(--control-radius);
    background: rgba(18, 18, 18, 0.88);
    color: #ffffff;
    font-size: 1.4rem;
    line-height: 1;
    cursor: pointer;
}

.viewer-lock {
    overflow: hidden;
}

@keyframes reveal-up {
    from {
        opacity: 0;
        transform: translateY(18px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@media (max-width: 1100px) {
    .case-hero {
        grid-template-columns: 1fr;
    }

    .hero-visual {
        min-height: 380px;
    }

    .kpi-section {
        grid-template-columns: repeat(2, 1fr);
    }

    .kpi-card:nth-child(2n) {
        border-right: none;
    }

    .kpi-card {
        border-bottom: 1px solid var(--border-color);
    }

    .kpi-card:nth-last-child(-n+2) {
        border-bottom: none;
    }

    .detail-section,
    .timeline-grid {
        grid-template-columns: 1fr;
    }

    .detail-card {
        border-right: none;
        border-bottom: 1px solid var(--border-color);
    }

    .detail-card:last-child {
        border-bottom: none;
    }

    .gallery-grid {
        grid-template-columns: 1fr;
        grid-auto-rows: 260px;
    }

    .gallery-item.large {
        grid-column: auto;
        grid-row: auto;
    }

    .assets-grid {
        grid-template-columns: 1fr;
    }

    .asset-logo-wrap {
        min-height: 180px;
    }

    .social-grid {
        grid-template-columns: 1fr;
        max-width: 100%;
    }

    .social-card img {
        height: 250px;
    }

    .dribbble-case .gallery-section,
    .dribbble-case .landing-showcase-section,
    .dribbble-case .brand-assets-section,
    .dribbble-case .social-media-section,
    .dribbble-case .creative-events-section,
    .dribbble-case .project-summary-section {
        padding: 0 1.4rem 2rem;
    }

    .dribbble-case .gallery-item.large {
        grid-column: span 12;
    }

    .dribbble-case .gallery-grid .gallery-item:not(.large),
    .dribbble-case .assets-grid .asset-card,
    .dribbble-case .social-grid .social-card,
    .dribbble-case .creative-grid .social-card {
        grid-column: span 6;
    }

    .dribbble-case .assets-grid {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }

    .dribbble-case .assets-grid .asset-card {
        grid-column: span 1;
    }

    .dribbble-case .assets-grid .asset-prostor-card,
    .dribbble-case .assets-grid .asset-flip-card,
    .dribbble-case .assets-grid .asset-olga-card,
    .dribbble-case .assets-grid .asset-vector-card {
        grid-column: span 1;
    }

    .dribbble-case .social-grid .story-cover-card {
        grid-column: span 4;
    }

    .dribbble-case .social-grid .story-vertical-card {
        grid-column: span 4;
    }

    .dribbble-case .creative-grid .social-card {
        grid-column: span 6;
    }

    .dribbble-case .creative-grid .creative-wide-card,
    .dribbble-case .creative-grid .creative-square-card {
        grid-column: span 6;
    }

    .dribbble-case .social-card img {
        height: auto;
    }
}

@media (max-width: 768px) {
    .site-header {
        padding: 1rem;
    }

    .burger-menu {
        display: flex;
    }

    .site-nav {
        position: fixed;
        top: 0;
        left: 0;
        width: 100%;
        height: 100vh;
        background-color: var(--bg-color);
        flex-direction: column;
        justify-content: center;
        align-items: center;
        gap: 1.8rem;
        transform: translateY(-100%);
        transition: transform 0.3s ease-in-out;
        z-index: 100;
    }

    .site-header.active .site-nav {
        transform: translateY(0);
    }

    .site-nav a {
        font-size: 1.2rem;
    }
}

@media (max-width: 700px) {
    .case-hero,
    .timeline-section,
    .gallery-section,
    .landing-showcase-section,
    .brand-assets-section,
    .social-media-section,
    .creative-events-section,
    .project-summary-section {
        padding: 1.4rem 1rem;
    }

    .hero-visual {
        min-height: 280px;
    }

    .kpi-section {
        grid-template-columns: 1fr;
    }

    .kpi-card {
        border-right: none;
        border-bottom: 1px solid var(--border-color);
    }

    .kpi-card:last-child {
        border-bottom: none;
    }

    .detail-card {
        padding: 1.4rem 1rem;
    }

    .case-footer {
        flex-direction: column;
        gap: 0.4rem;
        text-align: center;
        padding: 1rem;
    }

    .dribbble-case .gallery-section,
    .dribbble-case .landing-showcase-section,
    .dribbble-case .brand-assets-section,
    .dribbble-case .social-media-section,
    .dribbble-case .creative-events-section,
    .dribbble-case .project-summary-section {
        padding: 0 1rem 1.4rem;
    }

    .dribbble-case .gallery-header,
    .dribbble-case .landing-header,
    .dribbble-case .assets-header,
    .dribbble-case .social-header,
    .dribbble-case .creative-header {
        padding: 1.4rem 0 0.8rem;
    }

    .dribbble-case .visual-group + .visual-group {
        margin-top: 1.4rem;
    }

    .landing-page-controls {
        gap: 0.45rem;
        margin-bottom: 0.7rem;
    }

    .landing-page-controls--bottom {
        margin-top: 0.7rem;
    }

    .landing-page-button {
        font-size: 0.74rem;
        padding: 0.44rem 0.7rem;
    }

    .dribbble-case .gallery-grid,
    .dribbble-case .landing-grid,
    .dribbble-case .assets-grid,
    .dribbble-case .social-grid,
    .dribbble-case .creative-grid {
        gap: 0.75rem;
    }

    .dribbble-case .gallery-item.large,
    .dribbble-case .landing-item,
    .dribbble-case .gallery-grid .gallery-item:not(.large),
    .dribbble-case .assets-grid .asset-card,
    .dribbble-case .social-grid .social-card,
    .dribbble-case .creative-grid .social-card {
        grid-column: span 12;
    }

    .dribbble-case .assets-grid {
        grid-template-columns: 1fr;
    }

    .dribbble-case .assets-grid .asset-card {
        grid-column: span 1;
    }

    .dribbble-case .social-grid .story-cover-card,
    .dribbble-case .social-grid .story-vertical-card,
    .dribbble-case .creative-grid .social-card {
        justify-self: stretch;
    }

    .image-viewer {
        padding: 0.85rem;
    }

    .image-viewer__close {
        top: 0.1rem;
        right: 0.1rem;
    }

    .image-viewer__flip-card {
        width: min(92vw, 520px);
        max-height: 68vh;
    }

    .image-viewer__flip-card .flip-face {
        max-height: 68vh;
    }
}