/* ========================================
   ELITE BESPOKE WEBSITE SKELETON
   Design System & Styles
   Zero External Libraries
   ======================================== */

/* ---- CSS Reset ---- */
*,
*::before,
*::after {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

/* ---- Hidden Scrollbar ---- */
html {
    scrollbar-width: none;
    scroll-behavior: smooth;
}

html::-webkit-scrollbar {
    display: none;
}

/* ---- Design Tokens ---- */
:root {
    /* Colors — The Tonal Progression */
    --parchment-white: #E8E6E1;
    --charcoal: #2E2B27;
    --soft-slate: #D2CBBD;
    --iron-charcoal: #1A1815;
    --off-white: #F5F5F0;

    /* Typography */
    --font-serif: 'EB Garamond', 'Garamond', 'Georgia', 'Times New Roman', serif;
    --fs-micro: 9px;
    --fs-small: 10px;
    --fs-body: 12px;
    --fs-title: 16px;
    --fs-heading: clamp(24px, 4vw, 48px);
    --fs-display: clamp(32px, 5vw, 64px);
    --fs-hero: clamp(42px, 7vw, 96px);

    /* Spacing */
    --space-xs: 8px;
    --space-sm: 16px;
    --space-md: 32px;
    --space-lg: 64px;
    --space-xl: 120px;

    /* Transitions */
    --transition-slow: 1s ease;
    --transition-medium: 0.6s ease;
    --transition-fast: 0.3s ease;
    --transition-page: 0.8s ease;
}

/* ---- Base Typography ---- */
body {
    font-family: var(--font-serif);
    font-size: var(--fs-body);
    line-height: 1.8;
    letter-spacing: 0.03em;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    overflow-x: hidden;
    transition: opacity 0.6s ease;
}

::selection {
    background-color: var(--charcoal);
    color: var(--parchment-white);
}

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

img {
    display: block;
    max-width: 100%;
    user-select: none;
    -webkit-user-drag: none;
}

/* ---- Page Themes ---- */
body.theme-light {
    background-color: var(--parchment-white);
    color: var(--charcoal);
}

body.theme-slate {
    background-color: var(--soft-slate);
    color: var(--charcoal);
}

body.theme-dark {
    background-color: var(--iron-charcoal);
    color: var(--off-white);
}

body.theme-dark ::selection {
    background-color: var(--off-white);
    color: var(--iron-charcoal);
}

/* ========================================
   SPLASH SCREEN
   ======================================== */
.splash-screen {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: var(--iron-charcoal);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 99999;
    transition: opacity 1.2s ease;
}

.splash-screen.fade-out {
    opacity: 0;
    pointer-events: none;
}

.splash-logo {
    opacity: 0;
    animation: splashReveal 1.6s ease 0.2s forwards;
}

.splash-logo img {
    height: 55px;
    width: auto;
    display: block;
}

@keyframes splashReveal {
    0% {
        opacity: 0;
        transform: translateY(6px);
    }

    50% {
        opacity: 1;
        transform: translateY(0);
    }

    100% {
        opacity: 1;
        transform: translateY(0);
    }
}

/* ========================================
   PAGE TRANSITION OVERLAY
   ======================================== */
.page-transition-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 10000;
    opacity: 1;
    transition: opacity var(--transition-page);
    pointer-events: none;
}

body.theme-light .page-transition-overlay,
body.theme-slate .page-transition-overlay {
    background-color: var(--parchment-white);
}

body.theme-dark .page-transition-overlay {
    background-color: var(--iron-charcoal);
}

.page-transition-overlay.fade-out {
    opacity: 0;
}

/* ========================================
   SITE HEADER
   ======================================== */
.site-header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    padding: var(--space-md) var(--space-md);
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    z-index: 1000;
    pointer-events: none;
    mix-blend-mode: difference;
    transition: transform 0.4s ease, opacity 0.4s ease;
}

.site-header.header-hidden {
    transform: translateY(-100%);
    opacity: 0;
    pointer-events: none !important;
}

.site-header>* {
    pointer-events: auto;
}

.header-logo {
    display: flex;
    align-items: center;
    text-decoration: none;
    transition: opacity var(--transition-fast);
    opacity: 0;
    animation: headerFadeIn 1.2s ease 0.5s forwards;
}

.header-logo img {
    height: 34px;
    width: auto;
    display: block;
}

.header-logo:hover {
    opacity: 0.7;
}

@keyframes headerFadeIn {
    from {
        opacity: 0;
    }

    to {
        opacity: 1;
    }
}

/* ========================================
   HAMBURGER MENU
   ======================================== */
.hamburger {
    width: 26px;
    height: 16px;
    cursor: pointer;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    background: none;
    border: none;
    padding: 0;
    position: relative;
    z-index: 1001;
}

.hamburger span {
    display: block;
    width: 100%;
    height: 0.5px;
    background-color: var(--off-white);
    transition: transform var(--transition-fast), opacity var(--transition-fast);
}

.hamburger.active span:nth-child(1) {
    transform: translateY(7.75px) rotate(45deg);
}

.hamburger.active span:nth-child(2) {
    opacity: 0;
}

.hamburger.active span:nth-child(3) {
    transform: translateY(-7.75px) rotate(-45deg);
}

/* ========================================
   NAVIGATION OVERLAY
   ======================================== */
.nav-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: var(--iron-charcoal);
    z-index: 999;
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    visibility: hidden;
    transition: opacity var(--transition-medium), visibility var(--transition-medium);
}

.nav-overlay.active {
    opacity: 1;
    visibility: visible;
}

.nav-overlay nav {
    text-align: center;
}

.nav-overlay nav a {
    display: block;
    font-family: var(--font-serif);
    font-size: var(--fs-title);
    color: var(--off-white);
    text-decoration: none;
    letter-spacing: 0.35em;
    text-transform: uppercase;
    padding: 28px 0;
    opacity: 0.45;
    transition: opacity var(--transition-fast), letter-spacing var(--transition-medium);
}

.nav-overlay nav a:hover {
    opacity: 1;
    letter-spacing: 0.5em;
}

.nav-overlay nav a.active-link {
    opacity: 1;
}

.nav-page-label {
    display: none;
}

/* ========================================
   MAIN CONTENT
   ======================================== */
.main-content {
    min-height: 100vh;
    opacity: 0;
    transition: opacity var(--transition-slow);
}

.main-content.visible {
    opacity: 1;
}

/* ========================================
   MANIFESTO PAGE
   ======================================== */
.manifesto-section {
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    justify-content: center;
    padding: calc(var(--space-xl) + 40px) var(--space-lg) var(--space-xl);
    max-width: 900px;
    margin: 0 auto;
}

.manifesto-eyebrow {
    font-size: var(--fs-small);
    letter-spacing: 0.5em;
    text-transform: uppercase;
    opacity: 0.35;
    margin-bottom: var(--space-md);
    font-weight: 400;
}

.manifesto-title {
    font-size: var(--fs-hero);
    font-weight: 400;
    letter-spacing: 0.03em;
    line-height: 1.05;
    margin-bottom: var(--space-lg);
}

.manifesto-divider {
    width: 50px;
    height: 0.5px;
    background-color: currentColor;
    margin: var(--space-md) 0 var(--space-lg);
    opacity: 0.15 !important;
}

.manifesto-text {
    font-size: 15px;
    line-height: 2.2;
    letter-spacing: 0.02em;
    max-width: 580px;
}

.manifesto-text p {
    margin-bottom: var(--space-md);
}

.manifesto-footer {
    margin-top: var(--space-xl);
    font-size: var(--fs-small);
    letter-spacing: 0.3em;
    text-transform: uppercase;
    opacity: 0.25;
    font-weight: 400;
}

/* ========================================
   EXHIBITIONS PAGE
   ======================================== */
.exhibitions-header {
    padding: var(--space-xl) var(--space-md) var(--space-md);
}

.exhibitions-header h1 {
    font-size: var(--fs-small);
    letter-spacing: 0.35em;
    text-transform: uppercase;
    font-weight: 400;
    opacity: 0.5;
}

.exhibitions-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 2px;
}

.exhibition-item {
    position: relative;
    width: 100%;
    height: 85vh;
    overflow: hidden;
    cursor: pointer;
}

.exhibition-item img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 6s ease;
}

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

.exhibition-overlay {
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
    padding: var(--space-md);
    background: linear-gradient(transparent, rgba(0, 0, 0, 0.5));
    pointer-events: none;
}

.exhibition-info {
    color: var(--off-white);
}

.exhibition-info h3 {
    font-size: var(--fs-title);
    font-weight: 400;
    letter-spacing: 0.2em;
    text-transform: uppercase;
    margin-bottom: 4px;
}

.exhibition-info span {
    font-size: var(--fs-small);
    letter-spacing: 0.15em;
    opacity: 0.6;
}

/* ---- Exhibition Detail View ---- */
.exhibition-detail-view {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 1100;
    background-color: var(--iron-charcoal);
    opacity: 0;
    visibility: hidden;
    transition: opacity var(--transition-medium), visibility var(--transition-medium);
}

.exhibition-detail-view.active {
    opacity: 1;
    visibility: visible;
}

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

.detail-back-btn {
    position: fixed;
    top: var(--space-md);
    left: var(--space-md);
    font-family: var(--font-serif);
    font-size: 18px;
    background: none;
    border: 1px solid rgba(255, 255, 255, 0.25);
    color: var(--off-white);
    width: 42px;
    height: 42px;
    cursor: pointer;
    z-index: 1200;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: border-color var(--transition-fast), opacity var(--transition-fast), visibility var(--transition-fast);
    opacity: 0;
    visibility: hidden;
}

.detail-back-btn.visible {
    opacity: 1;
    visibility: visible;
}

.detail-back-btn:hover {
    border-color: var(--off-white);
}

/* ---- Narrative [+] Button ---- */
.narrative-btn {
    position: fixed;
    top: var(--space-md);
    right: 80px;
    font-family: var(--font-serif);
    font-size: 16px;
    color: var(--off-white);
    background: none;
    border: 1px solid rgba(255, 255, 255, 0.25);
    width: 42px;
    height: 42px;
    cursor: pointer;
    z-index: 1200;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: border-color var(--transition-fast), opacity var(--transition-fast), visibility var(--transition-fast);
    letter-spacing: 0;
    opacity: 0;
    visibility: hidden;
}

.narrative-btn.visible {
    opacity: 1;
    visibility: visible;
}

.narrative-btn:hover {
    border-color: var(--off-white);
}

/* ---- Narrative Panel (Slide-in) ---- */
.narrative-panel {
    position: fixed;
    top: 0;
    left: 0;
    width: 45%;
    height: 100%;
    background-color: var(--parchment-white);
    color: var(--charcoal);
    z-index: 1150;
    transform: translateX(-100%);
    transition: transform var(--transition-medium);
    overflow-y: auto;
    padding: var(--space-xl) var(--space-lg);
    scrollbar-width: none;
}

.narrative-panel::-webkit-scrollbar {
    display: none;
}

.narrative-panel.active {
    transform: translateX(0);
}

.narrative-panel-eyebrow {
    font-size: var(--fs-micro);
    letter-spacing: 0.3em;
    text-transform: uppercase;
    opacity: 0.4;
    margin-bottom: var(--space-md);
}

.narrative-panel h2 {
    font-size: var(--fs-heading);
    font-weight: 400;
    letter-spacing: 0.04em;
    line-height: 1.15;
    margin-bottom: var(--space-sm);
}

.narrative-panel .year {
    font-size: var(--fs-small);
    letter-spacing: 0.2em;
    opacity: 0.4;
    margin-bottom: var(--space-lg);
}

.narrative-panel p {
    font-size: var(--fs-body);
    line-height: 2.2;
    margin-bottom: var(--space-sm);
    letter-spacing: 0.02em;
}

.narrative-panel .divider {
    width: 40px;
    height: 1px;
    background-color: var(--charcoal);
    opacity: 0.2;
    margin: var(--space-md) 0;
}

.narrative-close {
    position: absolute;
    top: var(--space-md);
    right: var(--space-md);
    font-family: var(--font-serif);
    font-size: 22px;
    background: none;
    border: none;
    cursor: pointer;
    color: var(--charcoal);
    opacity: 0.35;
    transition: opacity var(--transition-fast);
    line-height: 1;
}

.narrative-close:hover {
    opacity: 0.8;
}

/* ========================================
   ATELIER PAGE
   ======================================== */
.atelier-hero {
    height: 40vh;
    display: flex;
    flex-direction: column;
    justify-content: flex-end;
    padding: var(--space-lg);
}

.atelier-hero h1 {
    font-size: var(--fs-display);
    font-weight: 400;
    letter-spacing: 0.15em;
    text-transform: uppercase;
    line-height: 1.1;
}

.atelier-hero p {
    font-size: var(--fs-body);
    opacity: 0.4;
    margin-top: var(--space-sm);
    letter-spacing: 0.15em;
    text-transform: uppercase;
}

.atelier-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 2px;
    padding: 2px;
}

.atelier-item {
    position: relative;
    overflow: hidden;
    aspect-ratio: 4/3;
}

.atelier-item.wide {
    grid-column: span 2;
    aspect-ratio: 21/9;
}

.atelier-item.tall {
    aspect-ratio: 3/4;
}

.atelier-item img,
.atelier-item video {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 4s ease;
}

.atelier-item:hover img,
.atelier-item:hover video {
    transform: scale(1.05);
}

.atelier-caption {
    position: absolute;
    bottom: var(--space-sm);
    left: var(--space-sm);
    font-size: var(--fs-micro);
    color: var(--off-white);
    letter-spacing: 0.15em;
    text-transform: uppercase;
    opacity: 0;
    transition: opacity var(--transition-fast);
}

.atelier-item:hover .atelier-caption {
    opacity: 0.7;
}

/* ========================================
   LIVING PAGE
   ======================================== */
.living-hero {
    height: 35vh;
    display: flex;
    flex-direction: column;
    justify-content: flex-end;
    padding: var(--space-lg);
}

.living-hero h1 {
    font-size: var(--fs-display);
    font-weight: 400;
    letter-spacing: 0.15em;
    text-transform: uppercase;
}

.living-hero p {
    font-size: var(--fs-body);
    opacity: 0.5;
    margin-top: var(--space-sm);
    letter-spacing: 0.1em;
}

.living-masonry {
    columns: 3;
    column-gap: 2px;
    padding: 2px var(--space-md);
}

.masonry-item {
    break-inside: avoid;
    margin-bottom: 2px;
    overflow: hidden;
    position: relative;
}

.masonry-item img {
    width: 100%;
    display: block;
    transition: transform 4s ease;
}

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

.masonry-caption {
    position: absolute;
    bottom: var(--space-sm);
    left: var(--space-sm);
    font-size: var(--fs-micro);
    letter-spacing: 0.15em;
    text-transform: uppercase;
    opacity: 0;
    transition: opacity var(--transition-fast);
    color: var(--off-white);
    text-shadow: 0 1px 3px rgba(0, 0, 0, 0.5);
}

.masonry-item:hover .masonry-caption {
    opacity: 0.8;
}

/* ========================================
   INQUIRY PAGE
   ======================================== */
.inquiry-section {
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    justify-content: center;
    padding: var(--space-xl) var(--space-lg);
    max-width: 750px;
    margin: 0 auto;
}

.inquiry-eyebrow {
    font-size: var(--fs-micro);
    letter-spacing: 0.35em;
    text-transform: uppercase;
    opacity: 0.35;
    margin-bottom: var(--space-md);
}

.inquiry-section h1 {
    font-size: var(--fs-display);
    font-weight: 400;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    margin-bottom: var(--space-xl);
    line-height: 1.1;
}

.inquiry-block {
    margin-bottom: var(--space-lg);
}

.inquiry-block h3 {
    font-size: var(--fs-micro);
    letter-spacing: 0.25em;
    text-transform: uppercase;
    opacity: 0.35;
    margin-bottom: var(--space-sm);
}

.inquiry-block p,
.inquiry-block a {
    font-size: 15px;
    line-height: 2.2;
    letter-spacing: 0.02em;
}

.inquiry-block a {
    color: inherit;
    text-decoration: none;
    border-bottom: 1px solid currentColor;
    opacity: 0.6;
    transition: opacity var(--transition-fast);
    padding-bottom: 2px;
}

.inquiry-block a:hover {
    opacity: 1;
}

.staff-list {
    list-style: none;
}

.staff-list li {
    font-size: 14px;
    line-height: 2.8;
    letter-spacing: 0.04em;
    display: flex;
    justify-content: space-between;
    align-items: baseline;
    border-bottom: 1px solid rgba(245, 245, 240, 0.06);
    padding-bottom: 4px;
}

.staff-list .staff-role {
    font-size: var(--fs-small);
    opacity: 0.35;
    letter-spacing: 0.15em;
    text-transform: uppercase;
}

/* ========================================
   LANGUAGE TOGGLE
   ======================================== */
.lang-toggle {
    position: fixed;
    bottom: var(--space-md);
    left: var(--space-md);
    z-index: 500;
    font-family: var(--font-serif);
    font-size: var(--fs-micro);
    letter-spacing: 0.15em;
    background: none;
    border: none;
    cursor: pointer;
    opacity: 0.3;
    transition: opacity var(--transition-fast);
    color: inherit;
    mix-blend-mode: difference;
    color: var(--off-white);
}

.lang-toggle:hover {
    opacity: 0.7;
}

/* Hide Google Translate default UI */
.goog-te-banner-frame,
.skiptranslate > iframe {
    display: none !important;
}

body {
    top: 0 !important;
}

.goog-te-gadget {
    display: none !important;
}

/* ========================================
   PROGRESSIVE IMAGE LOADING
   ======================================== */
img.lazy {
    filter: blur(20px);
    transition: filter 1.2s ease;
}

img.lazy.loaded {
    filter: blur(0);
}

/* ========================================
   SCROLL REVEAL
   ======================================== */
.reveal {
    opacity: 0;
    transform: translateY(15px);
    transition: opacity 1s ease, transform 1s ease;
}

.reveal.revealed {
    opacity: 1;
    transform: translateY(0);
}

/* ========================================
   FOOTER SPACER
   ======================================== */
.page-footer {
    height: var(--space-xl);
}

/* ========================================
   ACCESSIBILITY (Screen-reader only)
   ======================================== */
.sr-only {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    border: 0;
}

/* ========================================
   MOBILE ADAPTIVE
   Not just responsive — a distinct experience
   ======================================== */
@media (max-width: 768px) {
    :root {
        --fs-micro: 8px;
        --fs-small: 9px;
        --fs-body: 11px;
        --fs-title: 14px;
        --space-md: 24px;
        --space-lg: 48px;
        --space-xl: 80px;
    }

    .site-header {
        padding: calc(var(--space-sm) + 3px) calc(var(--space-sm) + 3px);
    }

    /* Manifesto */
    .manifesto-section {
        padding: calc(var(--space-lg) + 50px) var(--space-md) var(--space-lg);
    }

    .manifesto-text {
        font-size: 13px;
        line-height: 2;
    }

    /* Exhibitions */
    .exhibition-item {
        height: 55vh;
    }

    .narrative-panel {
        width: 88%;
        padding: var(--space-lg) var(--space-md);
    }

    .narrative-btn {
        right: 60px;
    }

    /* Atelier */
    .atelier-grid {
        grid-template-columns: 1fr;
    }

    .atelier-item.wide {
        grid-column: span 1;
        aspect-ratio: 16/9;
    }

    .atelier-hero {
        height: 30vh;
        padding: var(--space-md);
    }

    /* Living */
    .living-masonry {
        columns: 2;
        padding: 2px var(--space-sm);
    }

    .living-hero {
        height: 25vh;
        padding: var(--space-md);
    }

    /* Inquiry */
    .inquiry-section {
        padding: var(--space-lg) var(--space-md);
    }

    /* Nav */
    .nav-overlay nav a {
        font-size: 14px;
        letter-spacing: 0.2em;
        padding: 14px 0;
    }
}

@media (max-width: 480px) {
    .living-masonry {
        columns: 1;
    }

    .narrative-panel {
        width: 100%;
    }

    .exhibition-item {
        height: 45vh;
    }

    .staff-list li {
        flex-direction: column;
        gap: 2px;
    }
}