/* L'ART Réunion — Charte graphique inspirée du logo */

:root {
    --bg: #080808;
    --bg-elevated: #111111;
    --bg-card: #1a1a1a;
    --silver: #c8c8c8;
    --silver-muted: #8a8a8a;
    --green: #2d8a3e;
    --green-light: #7cb342;
    --gold: #d4a843;
    --gold-light: #f0c75e;
    --blue: #1e6bb8;
    --cyan: #00b4d8;
    --text: #f0f0f0;
    --text-muted: #a0a0a0;
    --gradient-green: linear-gradient(135deg, var(--green) 0%, var(--green-light) 100%);
    --gradient-gold: linear-gradient(135deg, var(--gold) 0%, var(--gold-light) 100%);
    --gradient-blue: linear-gradient(135deg, var(--blue) 0%, var(--cyan) 100%);
    --font-serif: 'Cormorant Garamond', Georgia, serif;
    --font-sans: 'Outfit', system-ui, sans-serif;
    --font-script: 'Great Vibes', cursive;
    --radius: 12px;
    --shadow: 0 20px 60px rgba(0, 0, 0, 0.5);
    --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

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

html { scroll-behavior: smooth; }

body {
    font-family: var(--font-sans);
    background: var(--bg);
    color: var(--text);
    line-height: 1.6;
    overflow-x: hidden;
}

.grain {
    position: fixed;
    inset: 0;
    pointer-events: none;
    z-index: 9999;
    opacity: 0.03;
    background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 256 256' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
}

img { max-width: 100%; height: auto; display: block; }
a { color: inherit; text-decoration: none; }

.container {
    width: min(1200px, 92%);
    margin: 0 auto;
}

.narrow { width: min(760px, 92%); }

/* Header */
.site-header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    padding: 1rem 0;
    transition: var(--transition);
    background: transparent;
}

.site-header.scrolled {
    background: rgba(8, 8, 8, 0.92);
    backdrop-filter: blur(20px);
    border-bottom: 1px solid rgba(200, 200, 200, 0.08);
    padding: 0.6rem 0;
}

.header-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.logo img {
    height: 56px;
    width: auto;
    filter: drop-shadow(0 2px 8px rgba(0,0,0,0.5));
}

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

.main-nav a {
    font-size: 0.9rem;
    font-weight: 400;
    letter-spacing: 0.05em;
    text-transform: uppercase;
    color: var(--silver);
    transition: var(--transition);
    position: relative;
}

.main-nav a:hover,
.main-nav a.active { color: var(--text); }

.main-nav a:not(.btn)::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 0;
    width: 0;
    height: 1px;
    background: var(--gradient-green);
    transition: var(--transition);
}

.main-nav a:not(.btn):hover::after,
.main-nav a.active:not(.btn)::after { width: 100%; }

.nav-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 4px;
}

.nav-toggle span {
    display: block;
    width: 24px;
    height: 2px;
    background: var(--silver);
    transition: var(--transition);
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 0.85rem 2rem;
    border-radius: 50px;
    font-family: var(--font-sans);
    font-size: 0.85rem;
    font-weight: 500;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    border: none;
    cursor: pointer;
    transition: var(--transition);
}

.btn-primary {
    background: var(--gradient-green);
    color: #fff;
    box-shadow: 0 4px 20px rgba(45, 138, 62, 0.3);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 30px rgba(45, 138, 62, 0.4);
}

.btn-outline {
    background: transparent;
    color: var(--silver);
    border: 1px solid rgba(200, 200, 200, 0.3);
}

.btn-outline:hover {
    border-color: var(--green-light);
    color: var(--text);
}

.btn-gold {
    background: var(--gradient-gold);
    color: #1a1a1a;
    font-weight: 600;
}

.btn-gold:hover { transform: translateY(-2px); }

.btn-sm { padding: 0.5rem 1.2rem; font-size: 0.75rem; }
.btn-block { width: 100%; }

/* Hero */
.hero {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    overflow: hidden;
}

.hero-home { padding-top: 80px; }

.hero-page {
    min-height: 50vh;
    padding-top: 120px;
    padding-bottom: 60px;
    background: var(--bg-elevated);
}

.hero-compact { min-height: 35vh; }

.hero-bg {
    position: absolute;
    inset: 0;
    background-size: cover;
    background-position: center;
    transform: scale(1.05);
    animation: heroZoom 20s ease-in-out infinite alternate;
}

@keyframes heroZoom {
    from { transform: scale(1.05); }
    to { transform: scale(1.12); }
}

.hero-overlay {
    position: absolute;
    inset: 0;
    background: linear-gradient(
        180deg,
        rgba(8, 8, 8, 0.7) 0%,
        rgba(8, 8, 8, 0.5) 40%,
        rgba(8, 8, 8, 0.85) 100%
    );
}

.hero-content {
    position: relative;
    z-index: 2;
    max-width: 800px;
}

.hero-badge {
    display: inline-block;
    padding: 0.4rem 1rem;
    border: 1px solid rgba(200, 200, 200, 0.2);
    border-radius: 50px;
    font-size: 0.75rem;
    letter-spacing: 0.15em;
    text-transform: uppercase;
    color: var(--green-light);
    margin-bottom: 1.5rem;
}

.hero h1 {
    font-family: var(--font-serif);
    font-size: clamp(2.5rem, 6vw, 4.5rem);
    font-weight: 600;
    line-height: 1.1;
    margin-bottom: 0.5rem;
}

.hero-script {
    font-family: var(--font-script);
    font-size: clamp(2rem, 4vw, 3rem);
    color: var(--silver);
    margin-bottom: 1rem;
}

.hero-subtitle {
    font-size: 1.15rem;
    color: var(--text-muted);
    max-width: 520px;
    margin-bottom: 2rem;
}

.hero-actions {
    display: flex;
    gap: 1rem;
    flex-wrap: wrap;
}

.hero-scroll {
    position: absolute;
    bottom: 2rem;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.5rem;
    color: var(--silver-muted);
    font-size: 0.7rem;
    letter-spacing: 0.2em;
    text-transform: uppercase;
    z-index: 2;
}

.scroll-line {
    width: 1px;
    height: 40px;
    background: linear-gradient(to bottom, var(--green-light), transparent);
    animation: scrollPulse 2s ease-in-out infinite;
}

@keyframes scrollPulse {
    0%, 100% { opacity: 0.3; transform: scaleY(0.6); }
    50% { opacity: 1; transform: scaleY(1); }
}

.back-link {
    display: inline-block;
    color: var(--silver-muted);
    font-size: 0.85rem;
    margin-bottom: 1rem;
    transition: var(--transition);
}

.back-link:hover { color: var(--green-light); }

/* Sections */
.section {
    padding: 6rem 0;
    position: relative;
}

.section-alt {
    background: rgba(255, 255, 255, 0.02);
    border-top: 1px solid rgba(200, 200, 200, 0.04);
    border-bottom: 1px solid rgba(200, 200, 200, 0.04);
}

.section-header {
    margin-bottom: 3rem;
}

.section-header.centered {
    text-align: center;
}

.section-header.centered p {
    color: var(--text-muted);
    margin-top: 0.5rem;
}

.section-label {
    display: block;
    font-size: 0.75rem;
    letter-spacing: 0.2em;
    text-transform: uppercase;
    color: var(--green-light);
    margin-bottom: 0.75rem;
}

.section-header h2 {
    font-family: var(--font-serif);
    font-size: clamp(2rem, 4vw, 3rem);
    font-weight: 600;
}

.section-cta {
    text-align: center;
    margin-top: 3rem;
}

/* Prose */
.prose {
    color: var(--text-muted);
    font-size: 1.05rem;
    line-height: 1.8;
}

.prose h2 {
    font-family: var(--font-serif);
    color: var(--text);
    font-size: 1.8rem;
    margin: 2rem 0 1rem;
}

.prose ul {
    list-style: none;
    padding: 0;
}

.prose li {
    padding: 0.5rem 0 0.5rem 1.5rem;
    position: relative;
}

.prose li::before {
    content: '→';
    position: absolute;
    left: 0;
    color: var(--green-light);
}

.prose-large { font-size: 1.15rem; }

/* Gallery */
.gallery-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
    gap: 2rem;
}

.painting-card-wrap {
    display: block;
}

.painting-card {
    display: block;
    background: var(--bg-card);
    border-radius: var(--radius);
    overflow: hidden;
    border: 1px solid rgba(200, 200, 200, 0.06);
    transition: var(--transition);
}

.painting-card:hover {
    transform: translateY(-6px);
    box-shadow: var(--shadow);
    border-color: rgba(45, 138, 62, 0.2);
}

.painting-card-image {
    position: relative;
    aspect-ratio: 4/3;
    overflow: hidden;
}

.painting-card-image picture {
    display: block;
    width: 100%;
    height: 100%;
}

.painting-card-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.6s ease;
}

.painting-card:hover .painting-card-image img {
    transform: scale(1.08);
}

.painting-card-overlay {
    position: absolute;
    inset: 0;
    background: rgba(8, 8, 8, 0.6);
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    transition: var(--transition);
}

.painting-card:hover .painting-card-overlay { opacity: 1; }

.view-btn {
    padding: 0.6rem 1.5rem;
    border: 1px solid var(--silver);
    border-radius: 50px;
    font-size: 0.8rem;
    letter-spacing: 0.1em;
    text-transform: uppercase;
}

.card-badge {
    position: absolute;
    top: 1rem;
    right: 1rem;
    background: var(--gradient-gold);
    color: #1a1a1a;
    padding: 0.3rem 0.8rem;
    border-radius: 50px;
    font-size: 0.7rem;
    font-weight: 600;
    text-transform: uppercase;
}

.painting-card-body {
    padding: 1.5rem;
}

.card-category {
    font-size: 0.7rem;
    letter-spacing: 0.15em;
    text-transform: uppercase;
    color: var(--green-light);
}

.painting-card-body h3 {
    font-family: var(--font-serif);
    font-size: 1.4rem;
    margin: 0.3rem 0;
}

.card-price {
    font-weight: 500;
    color: var(--gold-light);
}

/* Filter */
.filter-bar {
    display: flex;
    flex-wrap: wrap;
    gap: 0.75rem;
    margin-bottom: 3rem;
    justify-content: center;
}

.filter-btn {
    padding: 0.5rem 1.2rem;
    border-radius: 50px;
    border: 1px solid rgba(200, 200, 200, 0.15);
    font-size: 0.8rem;
    letter-spacing: 0.05em;
    transition: var(--transition);
}

.filter-btn:hover,
.filter-btn.active {
    background: var(--gradient-green);
    border-color: transparent;
    color: #fff;
}

/* Split blocks */
.split-block {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: center;
}

.split-block.reverse { direction: rtl; }
.split-block.reverse > * { direction: ltr; }

.split-content h2 {
    font-family: var(--font-serif);
    font-size: 2.5rem;
    margin-bottom: 1rem;
}

.split-content p {
    color: var(--text-muted);
    margin-bottom: 1.5rem;
    line-height: 1.8;
}

.link-arrow {
    color: var(--green-light);
    font-weight: 500;
    transition: var(--transition);
}

.link-arrow:hover { color: var(--text); }

.relief-card {
    position: relative;
    border-radius: var(--radius);
    overflow: hidden;
    box-shadow: var(--shadow);
}

.relief-card img {
    width: 100%;
    aspect-ratio: 4/5;
    object-fit: cover;
}

.relief-shine {
    position: absolute;
    inset: 0;
    background: linear-gradient(135deg, rgba(255,255,255,0.1) 0%, transparent 50%);
    pointer-events: none;
}

.about-image {
    border-radius: var(--radius);
    box-shadow: var(--shadow);
}

/* Process steps */
.steps-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
    gap: 2rem;
}

.step-card {
    padding: 2rem;
    background: var(--bg-card);
    border-radius: var(--radius);
    border: 1px solid rgba(200, 200, 200, 0.06);
    transition: var(--transition);
}

.step-card:hover {
    border-color: rgba(45, 138, 62, 0.2);
    transform: translateY(-4px);
}

.step-num {
    font-family: var(--font-serif);
    font-size: 2.5rem;
    font-weight: 700;
    background: var(--gradient-green);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.step-card h3 {
    font-family: var(--font-serif);
    font-size: 1.3rem;
    margin: 0.5rem 0;
}

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

/* Values */
.values-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 2rem;
}

.value-card {
    text-align: center;
    padding: 2.5rem 2rem;
    background: var(--bg-card);
    border-radius: var(--radius);
    border: 1px solid rgba(200, 200, 200, 0.06);
}

.value-icon { font-size: 2.5rem; margin-bottom: 1rem; }

.value-card h3 {
    font-family: var(--font-serif);
    font-size: 1.4rem;
    margin-bottom: 0.5rem;
}

.value-card p { color: var(--text-muted); }

/* CTA */
.cta-section { padding: 4rem 0 6rem; }

.cta-box {
    text-align: center;
    padding: 4rem 2rem;
    background: var(--bg-card);
    border-radius: var(--radius);
    border: 1px solid rgba(200, 200, 200, 0.08);
    position: relative;
    overflow: hidden;
}

.cta-box::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: var(--gradient-blue);
}

.cta-box h2 {
    font-family: var(--font-serif);
    font-size: 2.2rem;
    margin-bottom: 0.75rem;
}

.cta-box p {
    color: var(--text-muted);
    margin-bottom: 2rem;
}

/* Contact */
.contact-layout {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
}

.contact-cards {
    display: flex;
    flex-direction: column;
    gap: 1rem;
    margin-top: 2rem;
}

.contact-card {
    padding: 1.2rem 1.5rem;
    background: var(--bg-card);
    border-radius: var(--radius);
    border: 1px solid rgba(200, 200, 200, 0.06);
}

.contact-label {
    display: block;
    font-size: 0.7rem;
    letter-spacing: 0.15em;
    text-transform: uppercase;
    color: var(--green-light);
    margin-bottom: 0.3rem;
}

.contact-form-wrap {
    background: var(--bg-card);
    padding: 2.5rem;
    border-radius: var(--radius);
    border: 1px solid rgba(200, 200, 200, 0.06);
}

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

.form-group {
    margin-bottom: 1.2rem;
}

.form-group label {
    display: block;
    font-size: 0.8rem;
    letter-spacing: 0.05em;
    text-transform: uppercase;
    color: var(--silver-muted);
    margin-bottom: 0.4rem;
}

.form-group input,
.form-group textarea {
    width: 100%;
    padding: 0.85rem 1rem;
    background: var(--bg);
    border: 1px solid rgba(200, 200, 200, 0.12);
    border-radius: 8px;
    color: var(--text);
    font-family: var(--font-sans);
    font-size: 0.95rem;
    transition: var(--transition);
}

.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--green);
    box-shadow: 0 0 0 3px rgba(45, 138, 62, 0.15);
}

.alert {
    padding: 1rem 1.2rem;
    border-radius: 8px;
    margin-bottom: 1.5rem;
    font-size: 0.9rem;
}

.alert-success {
    background: rgba(45, 138, 62, 0.15);
    border: 1px solid rgba(45, 138, 62, 0.3);
    color: var(--green-light);
}

.alert-error {
    background: rgba(198, 40, 40, 0.15);
    border: 1px solid rgba(198, 40, 40, 0.3);
    color: #ef5350;
}

/* Painting detail */
.painting-layout {
    display: grid;
    grid-template-columns: 1.2fr 1fr;
    gap: 4rem;
    align-items: start;
}

.painting-image-wrap picture {
    display: block;
    width: 100%;
}

.painting-main-image {
    width: 100%;
    border-radius: var(--radius);
    box-shadow: var(--shadow);
}

.painting-info { padding-top: 1rem; }

.painting-meta {
    display: flex;
    gap: 2rem;
    margin-bottom: 2rem;
    padding-bottom: 2rem;
    border-bottom: 1px solid rgba(200, 200, 200, 0.08);
}

.meta-label {
    display: block;
    font-size: 0.7rem;
    letter-spacing: 0.15em;
    text-transform: uppercase;
    color: var(--silver-muted);
}

.price {
    font-size: 1.5rem;
    font-weight: 600;
    color: var(--gold-light);
}

/* Footer */
.site-footer {
    position: relative;
    background: var(--bg-elevated);
    padding-top: 4rem;
}

.footer-waves {
    height: 4px;
    background: var(--gradient-blue);
    margin-bottom: 3rem;
}

.footer-grid {
    display: grid;
    grid-template-columns: 1.5fr 1fr 1fr 1fr;
    gap: 3rem;
    padding-bottom: 3rem;
}

.footer-logo {
    height: 80px;
    width: auto;
    margin-bottom: 1rem;
}

.footer-tagline {
    color: var(--text-muted);
    font-size: 0.9rem;
}

.site-footer h4 {
    font-family: var(--font-serif);
    font-size: 1.1rem;
    margin-bottom: 1rem;
    color: var(--silver);
}

.site-footer ul { list-style: none; }

.site-footer li {
    margin-bottom: 0.5rem;
}

.site-footer a {
    color: var(--text-muted);
    font-size: 0.9rem;
    transition: var(--transition);
}

.site-footer a:hover { color: var(--green-light); }

.social-links {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.footer-bottom {
    border-top: 1px solid rgba(200, 200, 200, 0.06);
    padding: 1.5rem 0;
    text-align: center;
    color: var(--silver-muted);
    font-size: 0.8rem;
}

/* Error */
.error-section {
    min-height: 60vh;
    display: flex;
    align-items: center;
    text-align: center;
    padding-top: 120px;
}

.error-section h1 {
    font-family: var(--font-serif);
    font-size: 6rem;
    background: var(--gradient-green);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.empty-state {
    text-align: center;
    color: var(--text-muted);
    padding: 3rem;
}

/* SEO sections */
.seo-intro {
    margin-bottom: 2.5rem;
}

.gallery-intro {
    max-width: 800px;
}

.themes-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
    gap: 1.5rem;
}

.theme-card {
    background: var(--bg-card);
    border: 1px solid rgba(200, 200, 200, 0.08);
    border-radius: var(--radius);
    padding: 1.75rem;
    transition: var(--transition);
}

.theme-card:hover {
    border-color: rgba(45, 138, 62, 0.25);
    transform: translateY(-3px);
}

.theme-card h3 {
    font-family: var(--font-serif);
    font-size: 1.25rem;
    margin-bottom: 0.75rem;
    color: var(--text);
}

.theme-card p {
    color: var(--text-muted);
    font-size: 0.95rem;
    line-height: 1.7;
}

.theme-card-link {
    display: block;
    text-decoration: none;
    color: inherit;
}

.theme-card-link:hover {
    border-color: rgba(45, 138, 62, 0.35);
}

.theme-link {
    display: inline-block;
    margin-top: 1rem;
    font-size: 0.85rem;
    font-weight: 500;
    color: var(--green-light);
}

/* Audience */
.audience-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
    gap: 1.5rem;
}

.audience-card {
    padding: 2rem;
    background: var(--bg-card);
    border: 1px solid rgba(200, 200, 200, 0.06);
    border-radius: var(--radius);
    transition: var(--transition);
}

.audience-card:hover {
    border-color: rgba(45, 138, 62, 0.2);
}

.audience-card h3 {
    font-family: var(--font-serif);
    font-size: 1.3rem;
    margin-bottom: 0.75rem;
}

.audience-card p {
    color: var(--text-muted);
    font-size: 0.95rem;
    line-height: 1.7;
}

.audience-card .link-arrow {
    display: inline-block;
    margin-top: 1rem;
}

/* Stats */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
    gap: 2rem;
    text-align: center;
}

.stat-item {
    padding: 2rem 1rem;
}

.stat-number {
    display: block;
    font-family: var(--font-serif);
    font-size: clamp(2rem, 4vw, 3rem);
    font-weight: 700;
    background: var(--gradient-green);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: 0.5rem;
}

.stat-text {
    color: var(--text-muted);
    font-size: 0.9rem;
    text-transform: uppercase;
    letter-spacing: 0.08em;
}

/* Home FAQ teaser */
.home-faq {
    padding-bottom: 3rem;
}

.home-faq-list {
    margin-top: 1rem;
}

.cta-actions {
    display: flex;
    gap: 1rem;
    justify-content: center;
    flex-wrap: wrap;
}

/* FAQ */
.faq-list {
    margin-top: 2rem;
}

.faq-item {
    background: var(--bg-card);
    border: 1px solid rgba(200, 200, 200, 0.08);
    border-radius: var(--radius);
    margin-bottom: 0.75rem;
    overflow: hidden;
}

.faq-item summary {
    padding: 1.25rem 1.5rem;
    cursor: pointer;
    font-weight: 500;
    list-style: none;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.faq-item summary::-webkit-details-marker { display: none; }

.faq-item summary::after {
    content: '+';
    font-size: 1.25rem;
    color: var(--green-light);
    transition: transform 0.2s;
}

.faq-item[open] summary::after {
    content: '−';
}

.faq-item p {
    padding: 0 1.5rem 1.25rem;
    color: var(--text-muted);
    line-height: 1.7;
}

.faq-item a {
    color: var(--green-light);
    text-decoration: underline;
}

/* Breadcrumb */
.breadcrumb {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
    font-size: 0.85rem;
    color: rgba(255, 255, 255, 0.7);
    margin-bottom: 1rem;
}

.breadcrumb a {
    color: rgba(255, 255, 255, 0.85);
    text-decoration: none;
}

.breadcrumb a:hover {
    text-decoration: underline;
}

/* Responsive */
@media (max-width: 900px) {
    .nav-toggle { display: flex; }

    .main-nav {
        position: fixed;
        top: 0;
        right: -100%;
        width: 280px;
        height: 100vh;
        background: var(--bg-elevated);
        flex-direction: column;
        padding: 5rem 2rem 2rem;
        gap: 1.5rem;
        transition: var(--transition);
        border-left: 1px solid rgba(200, 200, 200, 0.08);
    }

    .main-nav.open { right: 0; }

    .split-block,
    .contact-layout,
    .painting-layout,
    .footer-grid {
        grid-template-columns: 1fr;
        gap: 2rem;
    }

    .split-block.reverse { direction: ltr; }

    .form-row { grid-template-columns: 1fr; }

    .hero-actions { flex-direction: column; }
    .hero-actions .btn { text-align: center; }

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