/* Dash Trading Inc — Modern Catalog Styles */

:root {
    --color-primary: #2563eb;
    --color-primary-dark: #1d4ed8;
    --color-primary-light: #3b82f6;
    --color-accent: #8b5cf6;
    --color-bg: #f8fafc;
    --color-surface: #ffffff;
    --color-text: #0f172a;
    --color-text-muted: #64748b;
    --color-border: #e2e8f0;
    --color-success: #10b981;
    --color-error: #ef4444;
    --shadow-sm: 0 1px 2px rgba(15, 23, 42, 0.05);
    --shadow-md: 0 4px 6px -1px rgba(15, 23, 42, 0.08), 0 2px 4px -2px rgba(15, 23, 42, 0.05);
    --shadow-lg: 0 10px 15px -3px rgba(15, 23, 42, 0.08), 0 4px 6px -4px rgba(15, 23, 42, 0.05);
    --shadow-xl: 0 20px 25px -5px rgba(15, 23, 42, 0.1), 0 8px 10px -6px rgba(15, 23, 42, 0.05);
    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 16px;
    --radius-xl: 24px;
    --font-sans: 'Inter', system-ui, -apple-system, sans-serif;
    --font-display: 'Plus Jakarta Sans', var(--font-sans);
    --header-height: 72px;
    --transition: 0.2s ease;
    --container-max: 1200px;
}

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

html {
    scroll-behavior: smooth;
    -webkit-text-size-adjust: 100%;
}

body {
    font-family: var(--font-sans);
    font-size: 16px;
    line-height: 1.6;
    color: var(--color-text);
    background: var(--color-bg);
    -webkit-font-smoothing: antialiased;
}

img { max-width: 100%; height: auto; display: block; }
a { color: var(--color-primary); text-decoration: none; transition: color var(--transition); }
a:hover { color: var(--color-primary-dark); }
ul { list-style: none; }

.container {
    width: 100%;
    max-width: var(--container-max);
    margin: 0 auto;
    padding: 0 20px;
}

.skip-link {
    position: absolute;
    top: -100%;
    left: 16px;
    z-index: 9999;
    padding: 8px 16px;
    background: var(--color-primary);
    color: #fff;
    border-radius: var(--radius-sm);
    font-weight: 600;
}
.skip-link:focus { top: 16px; }

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 10px 20px;
    font-family: inherit;
    font-size: 0.9375rem;
    font-weight: 600;
    line-height: 1.4;
    border: 2px solid transparent;
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: all var(--transition);
    text-decoration: none;
    white-space: nowrap;
}
.btn-sm { padding: 8px 16px; font-size: 0.875rem; }
.btn-lg { padding: 14px 28px; font-size: 1rem; }
.btn-block { width: 100%; }
.btn-primary { background: var(--color-primary); color: #fff; }
.btn-primary:hover { background: var(--color-primary-dark); color: #fff; transform: translateY(-1px); box-shadow: var(--shadow-md); }
.btn-outline { background: transparent; color: var(--color-primary); border-color: var(--color-border); }
.btn-outline:hover { border-color: var(--color-primary); background: rgba(37, 99, 235, 0.05); color: var(--color-primary-dark); }
.btn-ghost { background: transparent; color: var(--color-text-muted); }
.btn-ghost:hover { color: var(--color-text); background: var(--color-border); }
.btn-white { background: #fff; color: var(--color-primary); }
.btn-white:hover { background: #f1f5f9; color: var(--color-primary-dark); transform: translateY(-1px); }

/* Header */
.site-header {
    position: sticky;
    top: 0;
    z-index: 1000;
    background: rgba(255, 255, 255, 0.92);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--color-border);
    transition: box-shadow var(--transition);
}
.site-header.scrolled { box-shadow: var(--shadow-md); }

.header-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: var(--header-height);
    gap: 16px;
}

.logo {
    display: flex;
    align-items: center;
    gap: 10px;
    color: var(--color-text);
    text-decoration: none;
    flex-shrink: 0;
}
.logo:hover { color: var(--color-text); }
.logo-icon { display: flex; flex-shrink: 0; }
.logo-mark { display: block; border-radius: 10px; }
.logo-text { display: flex; flex-direction: column; line-height: 1.2; }
.logo-text strong { font-family: var(--font-display); font-size: 1.125rem; font-weight: 800; }
.logo-text small { font-size: 0.75rem; color: var(--color-text-muted); font-weight: 500; }

.main-nav {
    display: flex;
    align-items: center;
    gap: 4px;
}
.nav-link {
    padding: 8px 16px;
    font-size: 0.9375rem;
    font-weight: 500;
    color: var(--color-text-muted);
    border-radius: var(--radius-sm);
    transition: all var(--transition);
}
.nav-link:hover, .nav-link.active { color: var(--color-primary); background: rgba(37, 99, 235, 0.08); }

.header-actions {
    display: flex;
    align-items: center;
    gap: 8px;
}
.search-toggle, .menu-toggle {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    background: transparent;
    border: none;
    border-radius: var(--radius-sm);
    color: var(--color-text);
    cursor: pointer;
    transition: background var(--transition);
}
.search-toggle:hover, .menu-toggle:hover { background: var(--color-border); }
.menu-toggle { display: none; flex-direction: column; gap: 5px; }
.menu-toggle span {
    display: block;
    width: 20px;
    height: 2px;
    background: var(--color-text);
    border-radius: 2px;
    transition: all var(--transition);
}
.menu-toggle.active span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.menu-toggle.active span:nth-child(2) { opacity: 0; }
.menu-toggle.active span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }
.header-cta { display: none; }

.search-bar {
    padding: 12px 0;
    border-top: 1px solid var(--color-border);
    background: var(--color-surface);
}
.search-bar[hidden] { display: none; }
.search-form {
    display: flex;
    align-items: center;
    gap: 12px;
    background: var(--color-bg);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    padding: 8px 16px;
}
.search-form svg { color: var(--color-text-muted); flex-shrink: 0; }
.search-form input {
    flex: 1;
    border: none;
    background: transparent;
    font-family: inherit;
    font-size: 1rem;
    outline: none;
    min-width: 0;
}

/* Hero */
.hero {
    position: relative;
    padding: 60px 0 80px;
    overflow: hidden;
}
.hero-bg {
    position: absolute;
    inset: 0;
    background:
        radial-gradient(ellipse 80% 60% at 50% -20%, rgba(37, 99, 235, 0.15), transparent),
        radial-gradient(ellipse 60% 50% at 100% 50%, rgba(139, 92, 246, 0.1), transparent),
        linear-gradient(180deg, #fff 0%, var(--color-bg) 100%);
}
.hero-content {
    position: relative;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 48px;
    align-items: center;
}
.hero-badge {
    display: inline-block;
    padding: 6px 14px;
    background: rgba(37, 99, 235, 0.1);
    color: var(--color-primary);
    font-size: 0.8125rem;
    font-weight: 600;
    border-radius: 100px;
    margin-bottom: 20px;
}
.hero h1 {
    font-family: var(--font-display);
    font-size: clamp(2rem, 5vw, 3.25rem);
    font-weight: 800;
    line-height: 1.15;
    letter-spacing: -0.02em;
    margin-bottom: 20px;
}
.gradient-text {
    background: linear-gradient(135deg, var(--color-primary), var(--color-accent));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}
.hero-subtitle {
    font-size: 1.125rem;
    color: var(--color-text-muted);
    max-width: 520px;
    margin-bottom: 32px;
}
.hero-actions { display: flex; flex-wrap: wrap; gap: 12px; margin-bottom: 40px; }
.hero-stats {
    display: flex;
    gap: 32px;
    padding-top: 24px;
    border-top: 1px solid var(--color-border);
}
.stat strong {
    display: block;
    font-family: var(--font-display);
    font-size: 1.5rem;
    font-weight: 800;
    color: var(--color-text);
}
.stat span { font-size: 0.875rem; color: var(--color-text-muted); }

.hero-visual {
    position: relative;
    height: 360px;
    display: flex;
    align-items: center;
    justify-content: center;
}
.hero-card {
    position: absolute;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 8px;
    padding: 20px 24px;
    background: var(--color-surface);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-lg);
    font-weight: 600;
    font-size: 0.875rem;
    animation: float 6s ease-in-out infinite;
}
.hero-card-icon {
    width: 48px;
    height: 48px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: color-mix(in srgb, var(--accent) 15%, transparent);
    border-radius: var(--radius-md);
    font-size: 1.5rem;
}
.hero-card-1 { top: 20%; left: 10%; animation-delay: 0s; }
.hero-card-2 { top: 40%; right: 5%; animation-delay: -2s; }
.hero-card-3 { bottom: 15%; left: 25%; animation-delay: -4s; }

@keyframes float {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-12px); }
}

/* Sections */
.section { padding: 80px 0; }
.catalog-section-first {
    padding-top: 32px;
    padding-bottom: 60px;
}
.page-intro {
    display: flex;
    flex-wrap: wrap;
    align-items: flex-end;
    justify-content: space-between;
    gap: 16px;
    margin-bottom: 24px;
}
.page-intro h1 {
    font-family: var(--font-display);
    font-size: clamp(1.75rem, 4vw, 2.25rem);
    font-weight: 800;
    letter-spacing: -0.02em;
    margin-bottom: 4px;
}
.page-intro p {
    color: var(--color-text-muted);
    font-size: 1rem;
}
.page-intro-cta { flex-shrink: 0; }
.section-header { text-align: center; margin-bottom: 48px; }
.section-header h2 {
    font-family: var(--font-display);
    font-size: clamp(1.75rem, 4vw, 2.25rem);
    font-weight: 800;
    letter-spacing: -0.02em;
    margin-bottom: 12px;
}
.section-header p { color: var(--color-text-muted); font-size: 1.0625rem; }

/* Categories */
.category-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(160px, 1fr));
    gap: 16px;
}
.category-card {
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
    padding: 28px 16px;
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    color: var(--color-text);
    transition: all var(--transition);
}
.category-card:hover {
    border-color: var(--color-primary);
    box-shadow: var(--shadow-md);
    transform: translateY(-4px);
    color: var(--color-text);
}
.category-icon { font-size: 2rem; margin-bottom: 12px; }
.category-card h3 { font-size: 0.9375rem; font-weight: 600; margin-bottom: 4px; }
.category-count { font-size: 0.8125rem; color: var(--color-text-muted); }

/* Catalog toolbar */
.catalog-toolbar {
    display: flex;
    flex-wrap: wrap;
    align-items: flex-end;
    justify-content: space-between;
    gap: 16px;
    margin-bottom: 32px;
    padding: 20px;
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
}
.catalog-filters {
    display: flex;
    flex-wrap: wrap;
    align-items: flex-end;
    gap: 12px;
    flex: 1;
}
.filter-group { display: flex; flex-direction: column; gap: 6px; }
.filter-group label { font-size: 0.8125rem; font-weight: 600; color: var(--color-text-muted); }
.filter-group select,
.filter-group input {
    padding: 10px 14px;
    font-family: inherit;
    font-size: 0.9375rem;
    border: 1px solid var(--color-border);
    border-radius: var(--radius-sm);
    background: var(--color-bg);
    min-width: 160px;
    outline: none;
    transition: border-color var(--transition);
}
.filter-group select:focus,
.filter-group input:focus { border-color: var(--color-primary); }
.filter-search input { min-width: 220px; }
.results-count { font-size: 0.875rem; color: var(--color-text-muted); font-weight: 500; }

/* Product grid */
.product-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 24px;
}
.product-grid-sm { grid-template-columns: repeat(auto-fill, minmax(220px, 1fr)); }

.product-card {
    display: flex;
    flex-direction: column;
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    overflow: hidden;
    transition: all var(--transition);
}
.product-card:hover {
    box-shadow: var(--shadow-xl);
    transform: translateY(-4px);
    border-color: transparent;
}
.product-card-link { flex: 1; color: var(--color-text); text-decoration: none; }
.product-card-link:hover { color: var(--color-text); }

.product-image {
    position: relative;
    aspect-ratio: 4/3;
    background: linear-gradient(135deg, color-mix(in srgb, var(--product-color, #3b82f6) 12%, #f8fafc), color-mix(in srgb, var(--product-color, #3b82f6) 6%, #fff));
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 24px;
    overflow: hidden;
}
.product-image img {
    width: 100%;
    height: 100%;
    object-fit: contain;
    transition: transform 0.3s ease;
}
.product-card:hover .product-image img { transform: scale(1.05); }

.product-badge {
    position: absolute;
    top: 12px;
    left: 12px;
    padding: 4px 10px;
    background: var(--color-primary);
    color: #fff;
    font-size: 0.75rem;
    font-weight: 700;
    border-radius: 100px;
    text-transform: uppercase;
    letter-spacing: 0.03em;
}
.product-badge-lg { font-size: 0.8125rem; padding: 6px 14px; }

.product-info { padding: 20px; }
.product-category {
    display: inline-block;
    font-size: 0.75rem;
    font-weight: 600;
    color: var(--color-primary);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-bottom: 8px;
}
.product-name {
    font-family: var(--font-display);
    font-size: 1.0625rem;
    font-weight: 700;
    line-height: 1.35;
    margin-bottom: 8px;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}
.product-desc {
    font-size: 0.875rem;
    color: var(--color-text-muted);
    line-height: 1.5;
    margin-bottom: 12px;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}
.product-meta {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 8px;
}
.product-brand { font-size: 0.8125rem; color: var(--color-text-muted); }
.product-price {
    font-family: var(--font-display);
    font-size: 1.125rem;
    font-weight: 800;
    color: var(--color-text);
}
.product-actions { padding: 0 20px 20px; }

/* Empty state */
.empty-state {
    text-align: center;
    padding: 60px 20px;
}
.empty-icon { font-size: 3rem; margin-bottom: 16px; }
.empty-state h1, .empty-state h3 { font-family: var(--font-display); margin-bottom: 8px; }
.empty-state p { color: var(--color-text-muted); margin-bottom: 24px; }

/* CTA */
.cta-section { padding-bottom: 100px; }
.cta-card {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    justify-content: space-between;
    gap: 24px;
    padding: 48px;
    background: linear-gradient(135deg, var(--color-primary), var(--color-accent));
    border-radius: var(--radius-xl);
    color: #fff;
}
.cta-card h2 {
    font-family: var(--font-display);
    font-size: clamp(1.5rem, 3vw, 2rem);
    font-weight: 800;
    margin-bottom: 8px;
}
.cta-card p { opacity: 0.9; max-width: 480px; }

/* Product detail */
.breadcrumb {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 8px;
    font-size: 0.875rem;
    color: var(--color-text-muted);
    margin-bottom: 32px;
}
.breadcrumb a { color: var(--color-text-muted); }
.breadcrumb a:hover { color: var(--color-primary); }
.breadcrumb span[aria-current] { color: var(--color-text); font-weight: 500; }

.product-detail {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 48px;
    margin-bottom: 48px;
}
.product-detail-image {
    position: relative;
    aspect-ratio: 4/3;
    background: linear-gradient(135deg, color-mix(in srgb, var(--product-color, #3b82f6) 12%, #f8fafc), color-mix(in srgb, var(--product-color, #3b82f6) 6%, #fff));
    border-radius: var(--radius-xl);
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 40px;
    border: 1px solid var(--color-border);
}
.product-detail-image img { width: 100%; height: 100%; object-fit: contain; }

.product-detail-info h1 {
    font-family: var(--font-display);
    font-size: clamp(1.5rem, 3vw, 2.25rem);
    font-weight: 800;
    line-height: 1.2;
    margin: 8px 0 12px;
}
.product-detail-brand { color: var(--color-text-muted); margin-bottom: 16px; }
.product-detail-price {
    font-family: var(--font-display);
    font-size: 2rem;
    font-weight: 800;
    color: var(--color-primary);
    margin-bottom: 16px;
}
.product-detail-short { color: var(--color-text-muted); font-size: 1.0625rem; margin-bottom: 24px; }
.product-detail-actions { display: flex; flex-wrap: wrap; gap: 12px; margin-bottom: 24px; }
.product-detail-note {
    display: flex;
    align-items: flex-start;
    gap: 10px;
    padding: 16px;
    background: rgba(37, 99, 235, 0.06);
    border-radius: var(--radius-md);
    font-size: 0.875rem;
    color: var(--color-text-muted);
}
.product-detail-note svg { flex-shrink: 0; color: var(--color-primary); margin-top: 2px; }

.product-tabs {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
    margin-bottom: 48px;
}
.tab-panel {
    padding: 28px;
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
}
.tab-panel h2 {
    font-family: var(--font-display);
    font-size: 1.125rem;
    font-weight: 700;
    margin-bottom: 16px;
}
.tab-panel p { color: var(--color-text-muted); line-height: 1.7; }

.feature-list li {
    display: flex;
    align-items: flex-start;
    gap: 10px;
    padding: 8px 0;
    font-size: 0.9375rem;
    color: var(--color-text-muted);
}
.feature-list svg { flex-shrink: 0; color: var(--color-success); margin-top: 3px; }

.specs-list { display: flex; flex-direction: column; }
.spec-row {
    display: flex;
    justify-content: space-between;
    gap: 16px;
    padding: 12px 0;
    border-bottom: 1px solid var(--color-border);
    font-size: 0.9375rem;
}
.spec-row:last-child { border-bottom: none; }
.spec-row dt { font-weight: 600; color: var(--color-text); }
.spec-row dd { color: var(--color-text-muted); text-align: right; }

.related-products h2 {
    font-family: var(--font-display);
    font-size: 1.5rem;
    font-weight: 800;
    margin-bottom: 24px;
}

/* Contact */
.contact-grid {
    display: grid;
    grid-template-columns: 1fr 1.5fr;
    gap: 48px;
    align-items: start;
}
.contact-info { display: flex; flex-direction: column; gap: 16px; }
.contact-card {
    padding: 24px;
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
}
.contact-card-icon {
    width: 48px;
    height: 48px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(37, 99, 235, 0.1);
    color: var(--color-primary);
    border-radius: var(--radius-md);
    margin-bottom: 12px;
}
.contact-card h3 { font-size: 1rem; font-weight: 700; margin-bottom: 4px; }
.contact-card a { font-weight: 500; }
.text-muted { color: var(--color-text-muted); font-size: 0.875rem; }

.contact-form-wrapper {
    padding: 32px;
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-xl);
}
.contact-form { display: flex; flex-direction: column; gap: 20px; }
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.form-group { display: flex; flex-direction: column; gap: 6px; }
.form-group label { font-size: 0.875rem; font-weight: 600; }
.required { color: var(--color-error); }
.form-group input,
.form-group select,
.form-group textarea {
    padding: 12px 16px;
    font-family: inherit;
    font-size: 1rem;
    border: 1px solid var(--color-border);
    border-radius: var(--radius-sm);
    background: var(--color-bg);
    outline: none;
    transition: border-color var(--transition);
}
.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus { border-color: var(--color-primary); box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.1); }
.form-group textarea { resize: vertical; min-height: 120px; }

.alert {
    display: flex;
    align-items: flex-start;
    gap: 12px;
    padding: 20px;
    border-radius: var(--radius-md);
    margin-bottom: 24px;
}
.alert-success { background: rgba(16, 185, 129, 0.1); color: #065f46; }
.alert-success svg { color: var(--color-success); flex-shrink: 0; }
.alert-error { background: rgba(239, 68, 68, 0.1); color: #991b1b; }
.alert-error ul { padding-left: 20px; list-style: disc; }

/* Footer */
.site-footer {
    background: var(--color-text);
    color: #94a3b8;
    padding: 64px 0 32px;
}
.footer-grid {
    display: grid;
    grid-template-columns: 1.5fr 1fr 1fr 1fr;
    gap: 40px;
    margin-bottom: 48px;
}
.footer-logo { color: #fff; margin-bottom: 16px; }
.footer-logo:hover { color: #fff; }
.footer-tagline { color: #cbd5e1; font-weight: 500; margin-bottom: 12px; }
.footer-note { font-size: 0.875rem; line-height: 1.6; }
.footer-links h4, .footer-contact h4 {
    color: #fff;
    font-size: 0.875rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-bottom: 16px;
}
.footer-links ul, .footer-contact ul { display: flex; flex-direction: column; gap: 10px; }
.footer-links a, .footer-contact a { color: #94a3b8; font-size: 0.9375rem; }
.footer-links a:hover, .footer-contact a:hover { color: #fff; }
.footer-contact li { display: flex; align-items: center; gap: 10px; font-size: 0.9375rem; }
.footer-contact svg { flex-shrink: 0; }

.footer-bottom {
    display: flex;
    flex-wrap: wrap;
    justify-content: space-between;
    gap: 12px;
    padding-top: 32px;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    font-size: 0.875rem;
}
.footer-disclaimer { opacity: 0.7; }

/* Responsive */
@media (max-width: 1024px) {
    .hero-content { grid-template-columns: 1fr; }
    .hero-visual { display: none; }
    .product-detail { grid-template-columns: 1fr; }
    .product-tabs { grid-template-columns: 1fr; }
    .footer-grid { grid-template-columns: 1fr 1fr; }
    .contact-grid { grid-template-columns: 1fr; }
}

@media (max-width: 768px) {
    .section { padding: 60px 0; }
    .catalog-section-first { padding-top: 20px; }
    .page-intro { flex-direction: column; align-items: flex-start; }
    .page-intro-cta { width: 100%; }
    .menu-toggle { display: flex; }
    .header-cta { display: none; }

    .main-nav {
        position: fixed;
        top: var(--header-height);
        left: 0;
        right: 0;
        flex-direction: column;
        align-items: stretch;
        padding: 16px;
        background: var(--color-surface);
        border-bottom: 1px solid var(--color-border);
        box-shadow: var(--shadow-lg);
        transform: translateY(-100%);
        opacity: 0;
        visibility: hidden;
        transition: all 0.3s ease;
    }
    .main-nav.open {
        transform: translateY(0);
        opacity: 1;
        visibility: visible;
    }
    .nav-link { padding: 12px 16px; }

    .catalog-toolbar { flex-direction: column; align-items: stretch; }
    .catalog-filters { flex-direction: column; }
    .filter-group select,
    .filter-group input { width: 100%; min-width: unset; }

    .product-grid { grid-template-columns: repeat(auto-fill, minmax(240px, 1fr)); gap: 16px; }
    .cta-card { padding: 32px 24px; flex-direction: column; text-align: center; }
    .cta-card .btn { width: 100%; }
    .form-row { grid-template-columns: 1fr; }
    .footer-grid { grid-template-columns: 1fr; gap: 32px; }
    .hero-stats { gap: 20px; }
    .product-detail-actions { flex-direction: column; }
    .product-detail-actions .btn { width: 100%; }
}

@media (max-width: 480px) {
    .container { padding: 0 16px; }
    .hero { padding: 40px 0 60px; }
    .hero-actions { flex-direction: column; }
    .hero-actions .btn { width: 100%; }
    .hero-stats { flex-direction: column; gap: 16px; }
    .category-grid { grid-template-columns: repeat(2, 1fr); }
    .product-grid { grid-template-columns: 1fr; }
    .contact-form-wrapper { padding: 20px; }
}

@media (min-width: 769px) {
    .header-cta { display: inline-flex; }
}