/* ═══════════════════════════════════════════════════════════════
   ChemistrySpot — Design System v2 (Dark Theme)
   Inspiré Sigma-Aldrich · Palette #e8a0b4 · Fond #1a0f14
═══════════════════════════════════════════════════════════════ */

/* ── CSS Variables ─────────────────────────────────────────── */
:root {
    --primary:        #e8a0b4;
    --primary-dark:   #c97a95;
    --primary-light:  rgba(232, 160, 180, 0.12);
    --primary-glow:   rgba(232, 160, 180, 0.25);

    --danger:         #ff4d4d;
    --warning:        #f0b429;
    --info:           #4fc3f7;
    --success:        #22c55e;

    --text:           #f5e6ea;
    --text-muted:     #b8909a;
    --text-dim:       #7a5060;

    --bg:             #1a0f14;
    --bg-main:        #1a0f14;   /* alias for --bg */
    --bg-card:        #2d1520;
    --bg-surface:     #3d1f2a;
    --bg-hover:       #4a2535;

    --border:         rgba(232, 160, 180, 0.08);
    --border-focus:   rgba(232, 160, 180, 0.5);

    --shadow:         0 4px 16px rgba(0, 0, 0, 0.4);
    --shadow-lg:      0 8px 32px rgba(0, 0, 0, 0.5);

    --font:           'Inter', system-ui, -apple-system, sans-serif;
    --mono:           'JetBrains Mono', 'Courier New', monospace;

    --radius:         8px;
    --radius-lg:      12px;
    --radius-pill:    999px;

    --transition:     all 0.2s ease;
}

/* ── Reset ─────────────────────────────────────────────────── */
*, *::before, *::after { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
    font-family: var(--font);
    background: var(--bg);
    color: var(--text);
    line-height: 1.6;
    overflow-x: hidden;
    min-height: 100vh;
}
a { color: var(--primary); text-decoration: none; transition: var(--transition); }
a:hover { color: var(--primary-dark); }
img { max-width: 100%; display: block; }
ul { list-style: none; }

/* ── Container ─────────────────────────────────────────────── */
.container {
    width: 95%;
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 1rem;
}

/* ══════════════════════════════════════════════════════════════
   SITE HEADER — Sigma-Aldrich style (two rows)
══════════════════════════════════════════════════════════════ */
.site-header {
    position: sticky;
    top: 0;
    z-index: 1000;
    background: #140b10;
    border-bottom: 1px solid var(--border);
    box-shadow: 0 2px 20px rgba(0,0,0,0.5);
}

/* Row 1: logo + search + actions */
.header-top {
    padding: 0.85rem 0;
    border-bottom: 1px solid rgba(255,255,255,0.05);
}
.header-top .container {
    display: flex;
    align-items: center;
    gap: 1.5rem;
}

.site-logo {
    display: flex;
    align-items: center;
    gap: 0.6rem;
    color: var(--primary) !important;
    font-size: 1.35rem;
    font-weight: 800;
    letter-spacing: -0.5px;
    white-space: nowrap;
    flex-shrink: 0;
}
.site-logo .logo-hex {
    font-size: 1.5rem;
    line-height: 1;
}

.header-search {
    flex: 1;
    display: flex;
    max-width: 520px;
    background: var(--bg-surface);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    overflow: hidden;
    transition: var(--transition);
}
.header-search:focus-within {
    border-color: var(--border-focus);
    box-shadow: 0 0 0 3px var(--primary-light);
}
.header-search input {
    flex: 1;
    padding: 0.6rem 1rem;
    background: transparent;
    border: none;
    outline: none;
    color: var(--text);
    font-family: var(--font);
    font-size: 0.9rem;
}
.header-search input::placeholder { color: var(--text-dim); }
.header-search button {
    padding: 0 1rem;
    background: var(--primary);
    border: none;
    color: #1a0f14;
    cursor: pointer;
    font-size: 0.9rem;
    transition: var(--transition);
}
.header-search button:hover { background: var(--primary-dark); }

.header-actions {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    margin-left: auto;
    flex-shrink: 0;
}

/* Row 2: navigation */
.header-nav {
    padding: 0;
}
.header-nav .container {
    display: flex;
    gap: 0;
}
.header-nav .nav-link {
    display: inline-flex;
    align-items: center;
    padding: 0.7rem 1.25rem;
    font-size: 0.88rem;
    font-weight: 500;
    color: var(--text-muted);
    border-bottom: 2px solid transparent;
    transition: var(--transition);
    white-space: nowrap;
}
.header-nav .nav-link:hover {
    color: var(--text);
    background: rgba(255,255,255,0.04);
}
.header-nav .nav-link.active {
    color: var(--primary);
    border-bottom-color: var(--primary);
}

/* ══════════════════════════════════════════════════════════════
   BUTTONS
══════════════════════════════════════════════════════════════ */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.4rem;
    padding: 0.6rem 1.25rem;
    font-family: var(--font);
    font-size: 0.9rem;
    font-weight: 600;
    border-radius: var(--radius);
    border: 1px solid transparent;
    cursor: pointer;
    transition: var(--transition);
    white-space: nowrap;
    text-decoration: none !important;
}
.btn:disabled { opacity: 0.5; cursor: not-allowed; }

.btn-primary {
    background: var(--primary);
    color: #1a0f14;
    border-color: var(--primary);
}
.btn-primary:hover { background: var(--primary-dark); border-color: var(--primary-dark); color: #1a0f14; }

.btn-outline {
    background: transparent;
    color: var(--primary);
    border-color: var(--primary);
}
.btn-outline:hover { background: var(--primary-light); color: var(--primary); }

.btn-ghost {
    background: transparent;
    color: var(--text-muted);
    border-color: var(--border);
}
.btn-ghost:hover { background: var(--bg-surface); color: var(--text); }

.btn-sm { padding: 0.4rem 0.9rem; font-size: 0.82rem; }
.btn-lg { padding: 0.85rem 2rem; font-size: 1rem; }

/* ══════════════════════════════════════════════════════════════
   BREADCRUMB
══════════════════════════════════════════════════════════════ */
.breadcrumb {
    display: flex;
    align-items: center;
    gap: 0.4rem;
    padding: 0.75rem 0;
    font-size: 0.82rem;
    color: var(--text-muted);
}
.breadcrumb a { color: var(--text-muted); }
.breadcrumb a:hover { color: var(--primary); }
.breadcrumb .sep { color: var(--text-dim); }
.breadcrumb .current { color: var(--text); }

/* ══════════════════════════════════════════════════════════════
   PAGE HEADER BAND
══════════════════════════════════════════════════════════════ */
.page-band {
    background: var(--bg-surface);
    border-bottom: 1px solid var(--border);
    padding: 2rem 0;
}
.page-band h1 {
    font-size: 1.8rem;
    font-weight: 700;
    color: var(--text);
    margin-bottom: 0.3rem;
}
.page-band p { color: var(--text-muted); font-size: 0.95rem; }

/* ══════════════════════════════════════════════════════════════
   CARDS
══════════════════════════════════════════════════════════════ */
.card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    transition: var(--transition);
}
.card:hover {
    border-color: rgba(232, 160, 180, 0.25);
    box-shadow: var(--shadow);
}
.card-body { padding: 1.5rem; }

/* Product card (catalogue) */
.product-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: 1.5rem;
    display: flex;
    flex-direction: column;
    transition: var(--transition);
}
.product-card:hover {
    border-color: rgba(232, 160, 180, 0.3);
    transform: translateY(-2px);
    box-shadow: var(--shadow);
}
.product-card-cas {
    font-family: var(--mono);
    font-size: 0.78rem;
    color: var(--text-dim);
    letter-spacing: 0.5px;
    margin-bottom: 0.4rem;
}
.product-card-name {
    font-size: 1.1rem;
    font-weight: 600;
    color: var(--text);
    margin-bottom: 0.75rem;
    line-height: 1.3;
}
.product-card-meta {
    font-size: 0.83rem;
    color: var(--text-muted);
    margin-bottom: 0.25rem;
}
.product-card-price {
    font-family: var(--mono);
    font-size: 0.9rem;
    color: var(--primary);
    font-weight: 600;
    margin: 0.5rem 0 1rem;
}
.product-card-footer {
    margin-top: auto;
    display: flex;
    gap: 0.5rem;
    align-items: center;
}

/* Supplier card */
.supplier-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: 1.5rem;
    transition: var(--transition);
}
.supplier-card:hover {
    border-color: rgba(232, 160, 180, 0.3);
    transform: translateY(-2px);
    box-shadow: var(--shadow);
}
.supplier-name {
    font-size: 1rem;
    font-weight: 600;
    color: var(--text);
    margin-bottom: 0.5rem;
}
.supplier-country {
    display: inline-flex;
    align-items: center;
    gap: 0.3rem;
    font-size: 0.8rem;
    color: var(--text-muted);
    margin-bottom: 0.75rem;
}

/* ══════════════════════════════════════════════════════════════
   BADGES
══════════════════════════════════════════════════════════════ */
.badge {
    display: inline-flex;
    align-items: center;
    gap: 0.25rem;
    padding: 0.2rem 0.6rem;
    border-radius: var(--radius-pill);
    font-size: 0.75rem;
    font-weight: 600;
    white-space: nowrap;
}
.badge-primary  { background: var(--primary-light); color: var(--primary); }
.badge-success  { background: rgba(232,160,180,0.12); color: #e8a0b4; }
.badge-info     { background: rgba(79,195,247,0.12); color: #4fc3f7; }
.badge-warning  { background: rgba(240,180,41,0.12); color: #f0b429; }
.badge-danger   { background: rgba(255,77,77,0.12); color: #ff4d4d; }
.badge-neutral  { background: rgba(136,146,164,0.12); color: var(--text-muted); }

.badge-gmp  { background: rgba(232,160,180,0.15); color: #e8a0b4; border: 1px solid rgba(232,160,180,0.3); }
.badge-iso  { background: rgba(79,195,247,0.15); color: #4fc3f7; border: 1px solid rgba(79,195,247,0.3); }
.badge-usp  { background: rgba(240,180,41,0.15); color: #f0b429; border: 1px solid rgba(240,180,41,0.3); }
.badge-ph-eur { background: rgba(153,102,255,0.15); color: #9966ff; border: 1px solid rgba(153,102,255,0.3); }

.badge-grade {
    font-family: var(--mono);
    font-size: 0.72rem;
    padding: 0.15rem 0.5rem;
}

/* ══════════════════════════════════════════════════════════════
   FORMS
══════════════════════════════════════════════════════════════ */
.form-group { margin-bottom: 1.25rem; }
.form-label {
    display: block;
    font-size: 0.85rem;
    font-weight: 500;
    color: var(--text-muted);
    margin-bottom: 0.4rem;
}
.form-input, .form-select, .form-textarea {
    width: 100%;
    padding: 0.65rem 0.9rem;
    background: var(--bg-surface);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    color: var(--text);
    font-family: var(--font);
    font-size: 0.9rem;
    outline: none;
    transition: var(--transition);
    -webkit-appearance: none;
}
.form-input:focus, .form-select:focus, .form-textarea:focus {
    border-color: var(--primary);
    box-shadow: 0 0 0 3px var(--primary-light);
}
.form-input::placeholder, .form-textarea::placeholder { color: var(--text-dim); }
.form-textarea { resize: vertical; min-height: 100px; }
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 1rem; }

.checkbox-label {
    display: flex;
    align-items: flex-start;
    gap: 0.6rem;
    cursor: pointer;
    font-size: 0.88rem;
    color: var(--text-muted);
}
.checkbox-label input[type="checkbox"] {
    margin-top: 0.15rem;
    accent-color: var(--primary);
    flex-shrink: 0;
}

/* Filter row */
.filters-bar {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: 1.25rem 1.5rem;
    margin-bottom: 1.5rem;
    display: flex;
    gap: 1rem;
    flex-wrap: wrap;
    align-items: flex-end;
}
.filter-group { display: flex; flex-direction: column; gap: 0.35rem; flex: 1; min-width: 180px; }
.filter-label { font-size: 0.78rem; font-weight: 600; color: var(--text-muted); text-transform: uppercase; letter-spacing: 0.5px; }

/* ══════════════════════════════════════════════════════════════
   TABLES
══════════════════════════════════════════════════════════════ */
.data-table {
    width: 100%;
    border-collapse: collapse;
    font-size: 0.88rem;
}
.data-table thead { position: sticky; top: 0; background: var(--bg-surface); }
.data-table th {
    padding: 0.75rem 1rem;
    text-align: left;
    font-size: 0.78rem;
    font-weight: 600;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.5px;
    border-bottom: 1px solid var(--border);
    white-space: nowrap;
}
.data-table td {
    padding: 0.8rem 1rem;
    border-bottom: 1px solid rgba(255,255,255,0.04);
    color: var(--text);
    vertical-align: middle;
}
.data-table tbody tr:hover td { background: var(--bg-hover); }
.data-table .td-mono { font-family: var(--mono); font-size: 0.82rem; color: var(--text-muted); }
.data-table .td-num { text-align: right; font-family: var(--mono); font-size: 0.85rem; }
.data-table .td-price { text-align: right; font-family: var(--mono); font-size: 0.88rem; color: var(--primary); font-weight: 600; }
.data-table .td-up   { color: var(--primary); font-weight: 700; }
.data-table .td-down { color: var(--danger);  font-weight: 700; }

/* Table wrapper with scroll */
.table-wrap {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    overflow: auto;
}

/* ══════════════════════════════════════════════════════════════
   TABS
══════════════════════════════════════════════════════════════ */
.tabs-header {
    display: flex;
    border-bottom: 1px solid var(--border);
    gap: 0;
    overflow-x: auto;
    margin-bottom: 1.5rem;
}
.tab-btn {
    padding: 0.85rem 1.5rem;
    background: none;
    border: none;
    border-bottom: 2px solid transparent;
    color: var(--text-muted);
    font-family: var(--font);
    font-size: 0.9rem;
    font-weight: 500;
    cursor: pointer;
    transition: var(--transition);
    white-space: nowrap;
    margin-bottom: -1px;
}
.tab-btn:hover { color: var(--text); }
.tab-btn.active { color: var(--primary); border-bottom-color: var(--primary); }
.tab-panel { display: none; }
.tab-panel.active { display: block; animation: fadeUp 0.25s ease; }

@keyframes fadeUp {
    from { opacity: 0; transform: translateY(8px); }
    to   { opacity: 1; transform: translateY(0); }
}

/* ══════════════════════════════════════════════════════════════
   MODALS
══════════════════════════════════════════════════════════════ */
.modal {
    display: flex;
    position: fixed;
    inset: 0;
    background: rgba(0,0,0,0.72);
    backdrop-filter: blur(6px);
    z-index: 2000;
    align-items: center;
    justify-content: center;
    padding: 1rem;
    /* Transition instead of display toggle for smooth animation */
    visibility: hidden;
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.2s ease, visibility 0.2s ease;
}
.modal.open {
    visibility: visible;
    opacity: 1;
    pointer-events: auto;
}
.modal-box {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: 2rem;
    width: 100%;
    max-width: 480px;
    position: relative;
    box-shadow: var(--shadow-lg);
    /* Entrance animation */
    transform: scale(0.96) translateY(10px);
    opacity: 0;
    transition: transform 0.22s ease, opacity 0.22s ease;
}
.modal.open .modal-box {
    transform: scale(1) translateY(0);
    opacity: 1;
}
@media (prefers-reduced-motion: reduce) {
    .modal, .modal-box { transition: none; }
}
.modal-close {
    position: absolute;
    top: 1rem;
    right: 1rem;
    background: none;
    border: none;
    color: var(--text-muted);
    font-size: 1.25rem;
    cursor: pointer;
    transition: var(--transition);
}
.modal-close:hover { color: var(--primary); }
.modal-title {
    font-size: 1.2rem;
    font-weight: 600;
    color: var(--text);
    margin-bottom: 1.5rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

/* ══════════════════════════════════════════════════════════════
   STATUS / LOADING
══════════════════════════════════════════════════════════════ */
.status-bar {
    padding: 0.75rem 1.25rem;
    border-radius: var(--radius);
    font-size: 0.88rem;
    font-weight: 500;
    display: flex;
    align-items: center;
    gap: 0.5rem;
    margin: 1rem 0;
}
.status-loading { background: rgba(240,180,41,0.1); color: var(--warning); border: 1px solid rgba(240,180,41,0.2); }
.status-success { background: rgba(232,160,180,0.1); color: var(--primary); border: 1px solid rgba(232,160,180,0.2); }
.status-error   { background: rgba(255,77,77,0.1); color: var(--danger); border: 1px solid rgba(255,77,77,0.2); }

.spinner-icon { animation: spin 1s linear infinite; display: inline-block; }
@keyframes spin { from { transform: rotate(0deg); } to { transform: rotate(360deg); } }

.loading-state {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 1rem;
    padding: 4rem 2rem;
    color: var(--text-muted);
    text-align: center;
}
.loading-state .spin-lg {
    width: 40px;
    height: 40px;
    border: 3px solid var(--border);
    border-top-color: var(--primary);
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
}

.empty-state {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 1rem;
    padding: 4rem 2rem;
    color: var(--text-muted);
    text-align: center;
}
.empty-state i { font-size: 3rem; opacity: 0.3; }
.empty-state p { font-size: 0.95rem; }

/* ══════════════════════════════════════════════════════════════
   SECTION UTILITIES
══════════════════════════════════════════════════════════════ */
.section { padding: 2rem 0; }
.section-title {
    font-size: 1.15rem;
    font-weight: 600;
    color: var(--text);
    margin-bottom: 1.25rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}
.section-title i { color: var(--primary); }

.grid-2 { display: grid; grid-template-columns: 1fr 1fr; gap: 1.5rem; }
.grid-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1.5rem; }
.grid-4 { display: grid; grid-template-columns: repeat(4, 1fr); gap: 1.5rem; }
.products-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(280px, 1fr)); gap: 1.25rem; }
.suppliers-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(340px, 1fr)); gap: 1.25rem; }

/* Stats row */
.stats-row {
    display: flex;
    gap: 1px;
    background: var(--border);
    border-radius: var(--radius-lg);
    overflow: hidden;
    margin-bottom: 2rem;
}
.stat-item {
    flex: 1;
    background: var(--bg-card);
    padding: 1.25rem 1.5rem;
    display: flex;
    flex-direction: column;
    gap: 0.2rem;
}
.stat-num {
    font-family: var(--mono);
    font-size: 1.8rem;
    font-weight: 700;
    color: var(--primary);
    line-height: 1;
}
.stat-label { font-size: 0.8rem; color: var(--text-muted); text-transform: uppercase; letter-spacing: 0.5px; }

/* Excipient tags */
.excipient-tags { display: flex; flex-wrap: wrap; gap: 0.3rem; margin-top: 0.4rem; }
.excipient-tag {
    background: rgba(232,160,180,0.1);
    color: var(--primary);
    padding: 0.15rem 0.55rem;
    border-radius: var(--radius-pill);
    font-size: 0.75rem;
    font-weight: 500;
}
.excipient-tag-more { background: var(--bg-surface); color: var(--text-muted); }

/* Supplier price list (fournisseurs.html) */
.supplier-price-list {
    margin: 0.5rem 0 0.25rem;
    border-top: 1px solid var(--border);
    padding-top: 0.5rem;
}
.supplier-price-row {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0.25rem 0;
    font-size: 0.8rem;
    border-bottom: 1px solid rgba(255,255,255,0.03);
}
.supplier-price-name  { color: var(--text-muted); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; max-width: 55%; }
.supplier-price-range { font-family: var(--mono); font-weight: 600; color: var(--primary); white-space: nowrap; }

/* Pagination */
.pagination {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 0.35rem;
    margin-top: 2rem;
    flex-wrap: wrap;
}
.pagination button {
    padding: 0.45rem 0.85rem;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    color: var(--text-muted);
    font-family: var(--font);
    font-size: 0.85rem;
    font-weight: 500;
    cursor: pointer;
    transition: var(--transition);
}
.pagination button:hover { border-color: var(--primary); color: var(--primary); }
.pagination button.active { background: var(--primary); border-color: var(--primary); color: #1a0f14; font-weight: 700; }
.pagination button:disabled { opacity: 0.3; cursor: not-allowed; }
.pagination .page-info { color: var(--text-muted); font-size: 0.82rem; padding: 0 0.5rem; }

/* ══════════════════════════════════════════════════════════════
   SITE FOOTER — 3 colonnes
══════════════════════════════════════════════════════════════ */
.site-footer {
    background: #120b0f;
    border-top: 1px solid var(--border);
    margin-top: 4rem;
}
.footer-grid {
    display: grid;
    grid-template-columns: 1.8fr 1fr 1fr;
    gap: 3rem;
    padding: 3rem 0 2rem;
}
.footer-logo {
    font-size: 1.25rem;
    font-weight: 800;
    color: var(--primary);
    margin-bottom: 0.75rem;
    letter-spacing: -0.5px;
}
.footer-desc { font-size: 0.85rem; color: var(--text-dim); line-height: 1.6; margin-bottom: 1rem; }
.footer-certs { display: flex; gap: 0.4rem; flex-wrap: wrap; }
.footer-cert {
    padding: 0.2rem 0.55rem;
    background: var(--bg-surface);
    border: 1px solid var(--border);
    border-radius: 4px;
    font-size: 0.7rem;
    font-weight: 700;
    color: var(--text-dim);
    letter-spacing: 0.5px;
}
a.footer-cert {
    text-decoration: none;
    transition: var(--transition);
    cursor: pointer;
}
a.footer-cert:hover {
    background: rgba(232,160,180,.12);
    border-color: rgba(232,160,180,.35);
    color: var(--primary);
}

.footer-col h4 {
    font-size: 0.78rem;
    font-weight: 700;
    color: var(--text-dim);
    text-transform: uppercase;
    letter-spacing: 1px;
    margin-bottom: 1rem;
}
.footer-col ul { display: flex; flex-direction: column; gap: 0.5rem; }
.footer-col ul li a {
    font-size: 0.85rem;
    color: var(--text-dim);
    transition: var(--transition);
}
.footer-col ul li a:hover { color: var(--primary); }
.footer-col p {
    font-size: 0.85rem;
    color: var(--text-dim);
    margin-bottom: 0.4rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}
.footer-col p i { color: var(--primary); opacity: 0.7; font-size: 0.8rem; }

.footer-social { display: flex; gap: 0.5rem; margin-top: 0.75rem; }
.footer-social a {
    width: 34px;
    height: 34px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--bg-surface);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    color: var(--text-dim);
    font-size: 0.85rem;
    transition: var(--transition);
}
.footer-social a:hover { border-color: var(--primary); color: var(--primary); }

.footer-bottom {
    border-top: 1px solid var(--border);
    padding: 1rem 0;
    display: flex;
    align-items: center;
    justify-content: space-between;
}
.footer-bottom p { font-size: 0.78rem; color: var(--text-dim); }

/* ══════════════════════════════════════════════════════════════
   PRODUCT DETAIL PAGE
══════════════════════════════════════════════════════════════ */
.product-hero {
    background: var(--bg-surface);
    border-bottom: 1px solid var(--border);
    padding: 2rem 0;
}
.product-hero-grid {
    display: grid;
    grid-template-columns: 1fr 280px;
    gap: 2rem;
    align-items: start;
}
.product-hero h1 {
    font-size: 2rem;
    font-weight: 700;
    color: var(--text);
    margin-bottom: 0.3rem;
}
.product-hero-subtitle { font-size: 1rem; color: var(--text-muted); margin-bottom: 1.25rem; }
.product-meta-row { display: flex; flex-wrap: wrap; gap: 1.5rem; margin-top: 1rem; }
.product-meta-item {
    display: flex;
    flex-direction: column;
    gap: 0.15rem;
}
.product-meta-label { font-size: 0.72rem; color: var(--text-dim); text-transform: uppercase; letter-spacing: 0.5px; }
.product-meta-value { font-family: var(--mono); font-size: 0.88rem; color: var(--text); font-weight: 500; }

.structure-box {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: 1rem;
    text-align: center;
}
.structure-box img { border-radius: var(--radius); max-height: 200px; object-fit: contain; }
.structure-label { font-size: 0.78rem; color: var(--primary); font-weight: 600; margin-top: 0.5rem; }

/* ══════════════════════════════════════════════════════════════
   CONTACT PAGE
══════════════════════════════════════════════════════════════ */
.contact-cards-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); gap: 1.25rem; margin-bottom: 3rem; }
.contact-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: 2rem;
}
.contact-icon {
    width: 48px;
    height: 48px;
    background: var(--primary-light);
    border-radius: var(--radius);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--primary);
    font-size: 1.2rem;
    margin-bottom: 1rem;
}
.contact-card h3 { font-size: 1rem; font-weight: 600; color: var(--text); margin-bottom: 0.5rem; }
.contact-card p, .contact-detail { font-size: 0.85rem; color: var(--text-muted); margin-bottom: 0.3rem; display: flex; align-items: center; gap: 0.4rem; }
.contact-detail i { color: var(--primary); opacity: 0.7; font-size: 0.8rem; }
.contact-form-box {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: 2rem;
    max-width: 720px;
    margin: 0 auto;
}
.faq-item {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    margin-bottom: 0.5rem;
    overflow: hidden;
}
.faq-question {
    padding: 1rem 1.25rem;
    cursor: pointer;
    display: flex;
    justify-content: space-between;
    align-items: center;
    color: var(--text);
    font-weight: 500;
    font-size: 0.9rem;
    transition: var(--transition);
    user-select: none;
}
.faq-question:hover { color: var(--primary); }
.faq-question i { color: var(--text-muted); transition: transform 0.2s; }
.faq-item.open .faq-question i { transform: rotate(180deg); }
.faq-answer {
    display: none;
    padding: 0 1.25rem 1rem;
    font-size: 0.88rem;
    color: var(--text-muted);
    line-height: 1.7;
}
.faq-item.open .faq-answer { display: block; }

/* ══════════════════════════════════════════════════════════════
   UTILITIES
══════════════════════════════════════════════════════════════ */
.text-primary { color: var(--primary); }
.text-muted   { color: var(--text-muted); }
.text-center  { text-align: center; }
.mono         { font-family: var(--mono); }
.mt-1 { margin-top: 0.5rem; }
.mt-2 { margin-top: 1rem; }
.mt-3 { margin-top: 1.5rem; }
.mb-1 { margin-bottom: 0.5rem; }
.mb-2 { margin-bottom: 1rem; }
.mb-3 { margin-bottom: 1.5rem; }
.flex { display: flex; }
.flex-wrap { flex-wrap: wrap; }
.items-center { align-items: center; }
.gap-1 { gap: 0.5rem; }
.gap-2 { gap: 1rem; }
.fw-600 { font-weight: 600; }
.w-full { width: 100%; }

/* Fade in animation */
.fade-in { animation: fadeIn 0.4s ease; }
@keyframes fadeIn {
    from { opacity: 0; }
    to   { opacity: 1; }
}

/* ══════════════════════════════════════════════════════════════
   RESPONSIVE
══════════════════════════════════════════════════════════════ */
@media (max-width: 1024px) {
    .footer-grid { grid-template-columns: 1fr 1fr; gap: 2rem; }
    .footer-grid .footer-col:first-child { grid-column: 1 / -1; }
    .product-hero-grid { grid-template-columns: 1fr; }
    .structure-box { max-width: 300px; }
}

@media (max-width: 768px) {
    .header-search { display: none; }
    .header-nav .nav-link { padding: 0.6rem 0.8rem; font-size: 0.8rem; }
    .footer-grid { grid-template-columns: 1fr; gap: 1.5rem; }
    .grid-2, .grid-3, .grid-4 { grid-template-columns: 1fr; }
    .form-row { grid-template-columns: 1fr; }
    .page-band h1 { font-size: 1.4rem; }
    .stats-row { flex-direction: column; }
    .filters-bar { flex-direction: column; }
}

@media (max-width: 480px) {
    .products-grid { grid-template-columns: 1fr; }
    .suppliers-grid { grid-template-columns: 1fr; }
    .header-actions .btn-ghost { display: none; }
}