@import url('https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700;800;900&display=swap');

/* ==============================================
   Relief3D — Global Stylesheet (shared.css)
   ============================================== */

:root {
    --bg-base: #000000;
    --bg-surface: #0a0a0a;
    --bg-surface-2: #111111;
    --text-primary: #ffffff;
    --text-secondary: #a1a1aa; /* Increased contrast for readability */
    --border: #1f1f1f;
    --border-hover: #444444;
    --accent-gold: #d4af37;
    --radius: 16px;
    --transition: 0.3s cubic-bezier(0.16, 1, 0.3, 1);
    --font-heading: 'Inter', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
    --font-body: 'Inter', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
}

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

html { scroll-behavior: smooth; }

body {
    font-family: var(--font-body);
    background: var(--bg-base);
    color: var(--text-primary);
    line-height: 1.6; /* Increased line-height for readability */
    letter-spacing: 0.01em;
    -webkit-font-smoothing: antialiased;
    overflow-x: hidden;
}

body.no-scroll { overflow: hidden; }

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

/* ---- Ambient Glow ---- */
.ambient-glow {
    position: fixed;
    top: -50vh; left: 50%;
    transform: translateX(-50%);
    width: 100vw; height: 100vh;
    background: radial-gradient(circle, rgba(255,255,255,0.05) 0%, transparent 70%);
    z-index: -1;
    pointer-events: none;
}

/* ---- Navigation ---- */
.site-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1.25rem 5%;
    position: fixed;
    top: 0; width: 100%;
    background: rgba(0,0,0,0.6);
    backdrop-filter: blur(16px);
    border-bottom: 1px solid rgba(255,255,255,0.05);
    z-index: 200;
    gap: 1rem;
}

.logo {
    font-family: var(--font-heading);
    font-size: 1.25rem;
    font-weight: 900;
    letter-spacing: 0.02em;
    color: var(--text-primary);
    white-space: nowrap;
}

.nav-center { display: flex; align-items: center; gap: 0.5rem; }

.nav-link {
    display: flex;
    align-items: center;
    gap: 4px;
    padding: 6px 14px;
    border-radius: 8px;
    font-size: 0.9rem;
    font-weight: 500;
    color: var(--text-secondary);
    transition: color var(--transition), background var(--transition);
}
.nav-link:hover, .nav-link.active { color: var(--text-primary); background: rgba(255,255,255,0.07); }

.chevron { transition: transform 0.2s; }

/* ---- Dropdown ---- */
.nav-dropdown { position: relative; }

.dropdown-menu {
    display: none;
    position: absolute;
    top: calc(100% + 12px);
    left: 50%;
    transform: translateX(-50%);
    min-width: 360px;
    background: var(--bg-surface);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 0.75rem;
    box-shadow: 0 20px 40px rgba(0,0,0,0.8);
    z-index: 300;
}

.nav-dropdown:hover .dropdown-menu { display: flex; flex-direction: column; gap: 0.25rem; }
.nav-dropdown:hover .chevron { transform: rotate(180deg); }

.dropdown-item {
    display: flex;
    align-items: flex-start;
    gap: 1rem;
    padding: 0.75rem 1rem;
    border-radius: 10px;
    transition: background var(--transition);
}
.dropdown-item:hover { background: rgba(255,255,255,0.06); }

.cat-icon { font-size: 1.4rem; flex-shrink: 0; }
.dropdown-title { font-weight: 600; font-size: 0.95rem; margin-bottom: 2px; }
.dropdown-desc { font-size: 0.8rem; color: var(--text-secondary); line-height: 1.4; }

/* ---- Lang Switcher ---- */
.nav-right { display: flex; align-items: center; gap: 0.75rem; }

.lang-switcher {
    display: flex;
    gap: 2px;
    background: rgba(255,255,255,0.05);
    padding: 3px;
    border-radius: 99px;
    border: 1px solid var(--border);
}
.lang-btn {
    background: transparent;
    color: var(--text-secondary);
    border: none;
    padding: 8px 16px;
    border-radius: 99px;
    cursor: pointer;
    font-family: var(--font-heading);
    font-weight: 600;
    font-size: 0.88rem;
    transition: all 0.2s;
}
.lang-btn.active { background: rgba(255,255,255,0.12); color: var(--text-primary); }

/* ---- Burger / Mobile Menu ---- */
.burger-btn {
    display: none;
    flex-direction: column;
    gap: 5px;
    background: transparent;
    border: 1px solid var(--border);
    padding: 12px 14px;
    border-radius: 8px;
    cursor: pointer;
}
.burger-btn span {
    display: block;
    width: 20px; height: 2px;
    background: var(--text-primary);
    border-radius: 2px;
}

.mobile-menu {
    display: none;
    position: fixed;
    top: 0; left: 0; width: 100%; height: 100vh;
    background: #000;
    z-index: 500;
    flex-direction: column;
    padding: 5rem 2rem 2rem;
    gap: 0.5rem;
    overflow-y: auto;
}
.mobile-menu.open { display: flex; }

.mobile-close {
    position: absolute;
    top: 1.5rem; right: 1.5rem;
    background: rgba(255,255,255,0.1);
    border: 1px solid var(--border);
    color: var(--text-primary);
    font-size: 1.2rem;
    width: 48px; height: 48px;
    border-radius: 50%;
    cursor: pointer;
    display: flex; align-items: center; justify-content: center;
}

.mobile-link {
    display: block;
    padding: 0.85rem 1rem;
    border-radius: 10px;
    font-size: 1.1rem;
    font-weight: 500;
    color: var(--text-primary);
    transition: background 0.2s;
}
.mobile-link:hover { background: rgba(255,255,255,0.06); }
.mobile-cat-link { font-size: 0.95rem; color: var(--text-secondary); }
.mobile-divider { height: 1px; background: var(--border); margin: 0.5rem 0; }

/* ---- Breadcrumbs ---- */
.breadcrumbs {
    display: flex;
    gap: 0.5rem;
    align-items: center;
    font-size: 0.85rem;
    color: var(--text-secondary);
    padding: 0 5%;
    margin-bottom: 1rem;
}
.breadcrumbs a { transition: color 0.2s; }
.breadcrumbs a:hover { color: var(--text-primary); }
.breadcrumbs .sep { opacity: 0.4; }

/* ---- Page Wrapper ---- */
.page-content { padding-top: 80px; }

/* ---- Hero ---- */
.hero {
    padding: 6rem 5% 4rem;
    text-align: center;
    max-width: 1000px;
    margin: 0 auto;
}
.hero h1 {
    font-family: var(--font-heading);
    font-size: clamp(3rem, 8vw, 6rem);
    font-weight: 900;
    letter-spacing: -0.02em;
    line-height: 1.1;
    margin-bottom: 1.5rem;
    background: linear-gradient(180deg, #FFFFFF 20%, #777777 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}
.hero p {
    font-size: clamp(1rem, 2vw, 1.25rem);
    color: var(--text-secondary);
    max-width: 680px;
    margin: 0 auto;
    line-height: 1.7;
}

/* ---- Category Cards (Home) ---- */
.cat-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
    gap: 1rem;
    padding: 0 5% 5rem;
    max-width: 1400px;
    margin: 0 auto;
}
.cat-card {
    background: var(--bg-surface);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 2rem;
    transition: all var(--transition);
    display: flex; flex-direction: column; gap: 0.75rem;
}
.cat-card:hover { border-color: var(--border-hover); background: var(--bg-surface-2); transform: translateY(-3px); }
.cat-card-icon { font-size: 2rem; }
.cat-card-title { font-size: 1.2rem; font-weight: 700; }
.cat-card-desc { font-size: 0.88rem; color: var(--text-secondary); line-height: 1.5; }
.cat-card-arrow { margin-top: auto; color: var(--text-secondary); font-size: 1.2rem; transition: transform 0.2s; }
.cat-card:hover .cat-card-arrow { transform: translateX(4px); color: var(--text-primary); }

/* ---- Section Label ---- */
.section-label {
    padding: 0 5%;
    max-width: 1400px;
    margin: 0 auto 2rem;
    display: flex;
    align-items: baseline;
    gap: 1rem;
}
.section-label h2 {
    font-family: var(--font-heading);
    font-size: 2rem;
    font-weight: 700;
    letter-spacing: -0.01em;
}
.section-label a {
    font-size: 0.9rem;
    color: var(--text-secondary);
    transition: color 0.2s;
}
.section-label a:hover { color: var(--text-primary); }

/* ---- Portfolio Grid ---- */
.portfolio-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(340px, 1fr));
    gap: 1.5rem;
    padding: 0 5% 6rem;
    max-width: 1400px;
    margin: 0 auto;
}

/* ---- Filter Chips (Catalog page) ---- */
.filter-bar {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
    padding: 0 5% 2rem;
    max-width: 1400px;
    margin: 0 auto;
}
.filter-btn {
    background: transparent;
    color: var(--text-secondary);
    border: 1px solid var(--border);
    padding: 10px 20px;
    border-radius: 99px;
    cursor: pointer;
    font-family: var(--font-heading);
    font-size: 0.95rem;
    font-weight: 500;
    transition: all 0.2s;
}
.filter-btn:hover { border-color: var(--border-hover); color: var(--text-primary); }
.filter-btn.active { background: #fff; color: #000; border-color: #fff; }

/* ---- Card ---- */
.card {
    background: var(--bg-surface);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    overflow: hidden;
    cursor: pointer;
    display: flex; flex-direction: column;
    position: relative;
    transition: border-color var(--transition), transform var(--transition), box-shadow var(--transition);
}
.card::before {
    content: '';
    position: absolute; inset: 0;
    background: radial-gradient(600px circle at var(--mouse-x,50%) var(--mouse-y,50%), rgba(255,255,255,0.07), transparent 40%);
    opacity: 0; transition: opacity 0.3s;
    pointer-events: none; z-index: 1;
}
.card:hover::before { opacity: 1; }
.card:hover { border-color: var(--border-hover); transform: translateY(-4px); box-shadow: 0 20px 40px rgba(0,0,0,0.5); }

.card-img-wrapper { width: 100%; height: 300px; overflow: hidden; background: #050505; }
.card-img { width: 100%; height: 100%; object-fit: cover; transition: transform 0.7s var(--transition); opacity: 0.85; }
.card:hover .card-img { transform: scale(1.06); opacity: 1; }

.card-content { padding: 1.75rem; flex-grow: 1; display: flex; flex-direction: column; position: relative; z-index: 2; }
.card-title { font-family: var(--font-heading); font-size: 1.35rem; font-weight: 700; letter-spacing: -0.01em; margin-bottom: 0.6rem; }
.card-desc { color: var(--text-secondary); font-size: 0.95rem; margin-bottom: 1.25rem; flex-grow: 1; line-height: 1.6; }

.specs {
    display: flex; gap: 0.75rem;
    font-size: 0.75rem; color: var(--text-secondary);
    border-top: 1px solid var(--border);
    padding-top: 1.25rem; margin-bottom: 1.25rem;
    font-family: monospace; text-transform: uppercase; letter-spacing: 0.06em;
}

.view-btn {
    width: 100%; padding: 11px;
    background: rgba(255,255,255,0.03);
    color: var(--text-primary);
    border: 1px solid var(--border);
    border-radius: 8px;
    font-family: var(--font-heading);
    font-weight: 600; font-size: 0.95rem;
    cursor: pointer; transition: all var(--transition);
}
.card:hover .view-btn { background: #fff; color: #000; border-color: #fff; }

.empty-msg { color: var(--text-secondary); font-size: 1.1rem; padding: 4rem; text-align: center; }

/* ---- Modal ---- */
.modal {
    display: none;
    position: fixed; inset: 0;
    background: rgba(0,0,0,0.85);
    backdrop-filter: blur(20px);
    z-index: 1000;
    justify-content: center; align-items: center;
    padding: 1.5rem;
}
.modal.show { display: flex; }

.modal-content {
    background: var(--bg-surface);
    border: 1px solid var(--border);
    border-radius: 20px;
    max-width: 960px; width: 100%;
    display: flex; flex-direction: column;
    box-shadow: 0 40px 80px rgba(0,0,0,0.9);
    position: relative;
    overflow: hidden;
    animation: modalIn 0.35s var(--transition) both;
}
@keyframes modalIn { from { opacity:0; transform: scale(0.95) translateY(10px); } to { opacity:1; transform: none; } }
@media (min-width: 768px) { .modal-content { flex-direction: row; } }

.modal-img-container { flex: 1.2; min-height: 300px; background: #000; }
.modal-img { width: 100%; height: 100%; object-fit: cover; display: block; }

.modal-info {
    flex: 1; padding: 2.5rem;
    display: flex; flex-direction: column; gap: 1rem;
}
.modal-title { font-family: var(--font-heading); font-size: 1.8rem; font-weight: 700; letter-spacing: -0.02em; }
.modal-desc { color: var(--text-secondary); font-size: 1rem; line-height: 1.7; }
.modal-specs { display: flex; gap: 1rem; font-size: 0.8rem; color: var(--text-secondary); font-family: monospace; text-transform: uppercase; letter-spacing: 0.06em; }

.close-btn {
    position: absolute; top: 16px; right: 16px;
    background: rgba(0,0,0,0.5);
    border: 1px solid var(--border);
    color: var(--text-secondary);
    width: 48px; height: 48px;
    border-radius: 50%;
    display: flex; align-items: center; justify-content: center;
    cursor: pointer; transition: all 0.2s; z-index: 10;
}
.close-btn:hover { color: #fff; border-color: #fff; background: #000; }

.order-btn {
    margin-top: auto;
    display: inline-block;
    background: #fff; color: #000;
    padding: 13px 24px;
    border-radius: 8px;
    font-family: var(--font-heading);
    font-weight: 700; font-size: 1rem;
    text-align: center;
    transition: all var(--transition);
}
.order-btn:hover { background: #e5e5e5; transform: translateY(-2px); }

/* ---- Footer ---- */
.site-footer {
    text-align: center;
    padding: 3.5rem 5%;
    border-top: 1px solid var(--border);
    color: var(--text-secondary);
    font-size: 0.88rem;
    background: var(--bg-surface);
    display: flex; flex-direction: column; align-items: center; gap: 1.5rem;
}
.footer-desc { max-width: 560px; line-height: 1.6; }

/* ---- Responsive ---- */
@media (max-width: 768px) {
    .nav-center { display: none; }
    .burger-btn { display: flex; }
    .portfolio-grid { grid-template-columns: 1fr; }
    .cat-grid { grid-template-columns: 1fr 1fr; }
    .hero h1 { font-size: 3rem; }
}
@media (max-width: 480px) {
    .cat-grid { grid-template-columns: 1fr; }
}

/* ---- Lightbox ---- */
.lightbox-modal {
    position: fixed;
    top: 0; left: 0;
    width: 100vw; height: 100vh;
    background: rgba(0,0,0,0.9);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    z-index: 10000;
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0; pointer-events: none;
    transition: opacity var(--transition);
}
.lightbox-modal.show {
    opacity: 1; pointer-events: auto;
}
.lightbox-modal img {
    max-width: 95vw;
    max-height: 95vh;
    object-fit: contain;
    border-radius: 12px;
    box-shadow: 0 10px 40px rgba(0,0,0,0.8);
    transform: scale(0.95);
    transition: transform var(--transition);
}
.lightbox-modal.show img {
    transform: scale(1);
}
.lightbox-close {
    position: absolute;
    top: 20px; right: 20px;
    background: rgba(255,255,255,0.1);
    border: none;
    color: #fff;
    width: 52px; height: 52px;
    border-radius: 50%;
    cursor: pointer;
    display: flex; align-items: center; justify-content: center;
    font-size: 20px;
    transition: background 0.2s;
}
.lightbox-close:hover {
    background: rgba(255,255,255,0.2);
}