/* === CSS Variables === */
:root {
    --green-900: #064e3b;
    --green-800: #065f46;
    --green-700: #047857;
    --green-600: #059669;
    --green-500: #10b981;
    --green-400: #34d399;
    --green-100: #d1fae5;
    --green-50: #ecfdf5;
    --amber-500: #f59e0b;
    --amber-400: #fbbf24;
    --amber-100: #fef3c7;
    --slate-900: #0f172a;
    --slate-800: #1e293b;
    --slate-700: #334155;
    --slate-600: #475569;
    --slate-500: #64748b;
    --slate-400: #94a3b8;
    --slate-300: #cbd5e1;
    --slate-200: #e2e8f0;
    --slate-100: #f1f5f9;
    --slate-50: #f8fafc;
    --white: #ffffff;
    --radius: 12px;
    --radius-sm: 8px;
    --radius-lg: 16px;
    --shadow-sm: 0 1px 2px rgba(0,0,0,0.05);
    --shadow: 0 1px 3px rgba(0,0,0,0.1), 0 1px 2px rgba(0,0,0,0.06);
    --shadow-md: 0 4px 6px rgba(0,0,0,0.07), 0 2px 4px rgba(0,0,0,0.06);
    --shadow-lg: 0 10px 15px rgba(0,0,0,0.1), 0 4px 6px rgba(0,0,0,0.05);
    --shadow-xl: 0 20px 25px rgba(0,0,0,0.1), 0 8px 10px rgba(0,0,0,0.04);
    --transition: all 0.2s ease;
}

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

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    color: var(--slate-800);
    background: var(--slate-50);
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
}

a {
    color: var(--green-700);
    text-decoration: none;
    transition: var(--transition);
}

a:hover {
    color: var(--green-600);
}

img {
    max-width: 100%;
    height: auto;
}

/* === Layout === */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
}

/* === Breadcrumbs === */
.breadcrumbs {
    padding: 12px 0;
    font-size: 0.85rem;
    color: var(--muted);
    border-bottom: 1px solid var(--border);
}
.breadcrumb-list {
    list-style: none;
    display: flex;
    align-items: center;
    gap: 8px;
    flex-wrap: wrap;
    margin: 0;
    padding: 0;
}
.breadcrumb-item {
    display: flex;
    align-items: center;
    gap: 8px;
}
.breadcrumb-item::before {
    content: "/";
    color: var(--muted);
}
.breadcrumb-item:first-child::before {
    display: none;
}
.breadcrumb-link {
    color: var(--green-600);
    text-decoration: none;
    transition: color 0.2s;
}
.breadcrumb-link:hover {
    color: var(--green-500);
    text-decoration: underline;
}
.breadcrumb-current {
    color: var(--foreground);
    font-weight: 500;
}

/* === Header === */
.site-header {
    background: var(--white);
    border-bottom: 1px solid var(--slate-200);
    position: sticky;
    top: 0;
    z-index: 100;
}

.site-header .container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding-top: 16px;
    padding-bottom: 16px;
}

.logo {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 1.25rem;
    font-weight: 800;
    color: var(--slate-900);
}

.logo:hover {
    color: var(--slate-900);
}

.logo-icon {
    font-size: 1.5rem;
}

.highlight {
    color: var(--green-600);
}

.main-nav {
    display: flex;
    gap: 8px;
}

.nav-link {
    padding: 8px 14px;
    border-radius: var(--radius-sm);
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--slate-600);
    transition: var(--transition);
}

.nav-link:hover,
.nav-link.active {
    background: var(--green-50);
    color: var(--green-700);
}

/* === Hero === */
.hero {
    background: linear-gradient(135deg, var(--green-900) 0%, var(--green-700) 100%);
    color: var(--white);
    padding: 80px 0 60px;
    text-align: center;
}

.hero h1 {
    font-size: clamp(2rem, 5vw, 3rem);
    font-weight: 800;
    line-height: 1.2;
    margin-bottom: 16px;
}

.hero-subtitle {
    font-size: 1.125rem;
    color: var(--green-100);
    max-width: 680px;
    margin: 0 auto 32px;
    line-height: 1.6;
}

/* === Search === */
.search-box {
    max-width: 560px;
    margin: 0 auto 24px;
    position: relative;
}

.search-icon {
    position: absolute;
    left: 16px;
    top: 50%;
    transform: translateY(-50%);
    color: var(--slate-400);
}

.search-box input {
    width: 100%;
    padding: 16px 16px 16px 48px;
    border: 2px solid transparent;
    border-radius: var(--radius);
    font-size: 1rem;
    font-family: inherit;
    background: var(--white);
    color: var(--slate-800);
    box-shadow: var(--shadow-lg);
    transition: var(--transition);
}

.search-box input::placeholder {
    color: var(--slate-400);
}

.search-box input:focus {
    outline: none;
    border-color: var(--green-400);
    box-shadow: var(--shadow-xl), 0 0 0 4px rgba(52, 211, 153, 0.2);
}

/* === Filter Tags === */
.filter-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    justify-content: center;
}

.filter-btn {
    padding: 8px 16px;
    border: 1.5px solid rgba(255,255,255,0.3);
    border-radius: 50px;
    background: rgba(255,255,255,0.1);
    color: var(--white);
    font-size: 0.875rem;
    font-weight: 500;
    font-family: inherit;
    cursor: pointer;
    transition: var(--transition);
    backdrop-filter: blur(4px);
}

.filter-btn:hover {
    background: rgba(255,255,255,0.2);
    border-color: rgba(255,255,255,0.5);
}

.filter-btn.active {
    background: var(--white);
    color: var(--green-800);
    border-color: var(--white);
}

/* === Stats Bar === */
.stats-bar {
    background: var(--white);
    border-bottom: 1px solid var(--slate-200);
    padding: 20px 0;
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 16px;
    text-align: center;
}

.stat-item {
    display: flex;
    flex-direction: column;
    gap: 2px;
}

.stat-number {
    font-size: 1.5rem;
    font-weight: 800;
    color: var(--green-700);
}

.stat-label {
    font-size: 0.8rem;
    color: var(--slate-500);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

/* === Sections === */
section {
    padding: 60px 0;
}

section:nth-child(even) {
    background: var(--white);
}

.section-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 32px;
}

.section-header h2 {
    font-size: 1.75rem;
    font-weight: 700;
    color: var(--slate-900);
}

.product-count {
    font-size: 0.875rem;
    color: var(--slate-500);
    background: var(--slate-100);
    padding: 6px 12px;
    border-radius: 50px;
}

/* === Products Grid === */
.products-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(360px, 1fr));
    gap: 24px;
}

.product-card {
    background: var(--white);
    border: 1px solid var(--slate-200);
    border-radius: var(--radius-lg);
    overflow: hidden;
    transition: var(--transition);
    display: flex;
    flex-direction: column;
}

.product-card:hover {
    box-shadow: var(--shadow-lg);
    border-color: var(--green-400);
    transform: translateY(-2px);
}

.product-header {
    padding: 24px 24px 0;
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    gap: 12px;
}

.product-info h3 {
    font-size: 1.125rem;
    font-weight: 700;
    color: var(--slate-900);
    margin-bottom: 4px;
}

.product-desc {
    font-size: 0.875rem;
    color: var(--slate-600);
    line-height: 1.5;
    margin-bottom: 12px;
}

.product-price {
    font-size: 1.25rem;
    font-weight: 800;
    color: var(--green-700);
    white-space: nowrap;
}

/* === Card Body === */
.product-specs {
    padding: 16px 24px;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 8px;
}

.spec-item {
    display: flex;
    flex-direction: column;
    gap: 2px;
}

.spec-label {
    font-size: 0.7rem;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    color: var(--slate-500);
    font-weight: 600;
}

.spec-value {
    font-size: 0.85rem;
    color: var(--slate-700);
    font-weight: 500;
}

/* === Tags === */
.product-tags {
    padding: 0 24px;
    display: flex;
    flex-wrap: wrap;
    gap: 6px;
    margin-bottom: 16px;
}

.tag {
    padding: 3px 10px;
    border-radius: 50px;
    font-size: 0.7rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.3px;
}

.tag.radar { background: #dbeafe; color: #1e40af; }
.tag.camera-based { background: #fce7f3; color: #9d174d; }
.tag.indoor { background: var(--green-100); color: var(--green-800); }
.tag.outdoor { background: #fef3c7; color: #92400e; }
.tag.budget { background: #e0e7ff; color: #3730a3; }
.tag.premium { background: #1e293b; color: var(--white); }
.tag.portable { background: #ccfbf1; color: #115e59; }
.tag.no-subscription { background: #f3e8ff; color: #6b21a8; }
.tag.putting { background: #fce7f3; color: #9d174d; }
.tag.projector { background: #fed7aa; color: #9a3412; }
.tag.screen { background: #e0e7ff; color: #3730a3; }
.tag.all-in-one { background: #fef9c3; color: #854d0e; }
.tag.display { background: #cffafe; color: #155e75; }
.tag.pro { background: var(--slate-900); color: var(--white); }

/* === Pros & Cons === */
.product-pros-cons {
    padding: 0 24px;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 16px;
    flex: 1;
}

.pros-list, .cons-list {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.pros-list li, .cons-list li {
    font-size: 0.8rem;
    line-height: 1.4;
    padding-left: 20px;
    position: relative;
}

.pros-list li::before {
    content: '+';
    position: absolute;
    left: 0;
    color: var(--green-600);
    font-weight: 700;
}

.con-list li::before {
    content: '−';
    position: absolute;
    left: 0;
    color: #ef4444;
    font-weight: 700;
}

.pros-heading, .cons-heading {
    font-size: 0.7rem;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    font-weight: 700;
    margin-bottom: 4px;
}

.pros-heading { color: var(--green-700); }
.con-list { color: var(--slate-600); }

/* === Retailer Links === */
.product-retailers {
    padding: 16px 24px;
    border-top: 1px solid var(--slate-200);
    margin-top: auto;
}

.retailer-label {
    font-size: 0.7rem;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    color: var(--slate-500);
    font-weight: 600;
    margin-bottom: 8px;
}

.retailer-links {
    display: flex;
    gap: 8px;
    flex-wrap: wrap;
}

.retailer-link {
    padding: 6px 14px;
    border-radius: var(--radius-sm);
    font-size: 0.8rem;
    font-weight: 600;
    background: var(--green-50);
    color: var(--green-700);
    border: 1px solid var(--green-200);
    transition: var(--transition);
}

.retailer-link:hover {
    background: var(--green-600);
    color: var(--white);
}

/* === Categories Grid === */
.categories-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
    gap: 20px;
}

.category-card {
    background: var(--slate-50);
    border: 1px solid var(--slate-200);
    border-radius: var(--radius);
    padding: 28px 24px;
    text-align: center;
    transition: var(--transition);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 8px;
}

.category-card:hover {
    background: var(--white);
    border-color: var(--green-400);
    box-shadow: var(--shadow-md);
    transform: translateY(-2px);
    color: var(--green-700);
}

.category-icon {
    font-size: 2.5rem;
    margin-bottom: 4px;
}

.category-card h3 {
    font-size: 1rem;
    font-weight: 700;
    color: var(--slate-900);
}

.category-card:hover h3 {
    color: var(--green-700);
}

.category-price {
    font-size: 0.9rem;
    font-weight: 700;
    color: var(--green-600);
}

.category-desc {
    font-size: 0.8rem;
    color: var(--slate-500);
    line-height: 1.4;
}

/* === Guides Grid === */
.guides-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(340px, 1fr));
    gap: 24px;
}

.guide-card {
    background: var(--slate-50);
    border: 1px solid var(--slate-200);
    border-radius: var(--radius);
    padding: 28px;
    transition: var(--transition);
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.guide-card:hover {
    background: var(--white);
    border-color: var(--green-400);
    box-shadow: var(--shadow-md);
    transform: translateY(-2px);
}

.guide-tag {
    display: inline-block;
    padding: 4px 12px;
    border-radius: 50px;
    font-size: 0.7rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    background: var(--green-100);
    color: var(--green-800);
    width: fit-content;
}

.guide-card h3 {
    font-size: 1.1rem;
    font-weight: 700;
    color: var(--slate-900);
}

.guide-card p {
    font-size: 0.9rem;
    color: var(--slate-600);
    line-height: 1.5;
}

.guide-meta {
    font-size: 0.75rem;
    color: var(--slate-400);
    font-weight: 500;
}

/* === Newsletter === */
.newsletter-section {
    background: var(--green-800);
    color: var(--white);
}

.newsletter-box {
    text-align: center;
    max-width: 560px;
    margin: 0 auto;
}

.newsletter-box h2 {
    font-size: 1.5rem;
    font-weight: 700;
    margin-bottom: 12px;
}

.newsletter-box p {
    color: var(--green-100);
    margin-bottom: 24px;
}

.newsletter-form {
    display: flex;
    gap: 12px;
    justify-content: center;
}

.newsletter-form input {
    padding: 12px 16px;
    border: 2px solid rgba(255,255,255,0.2);
    border-radius: var(--radius-sm);
    background: rgba(255,255,255,0.1);
    color: var(--white);
    font-size: 0.95rem;
    font-family: inherit;
    min-width: 240px;
}

.newsletter-form input::placeholder {
    color: rgba(255,255,255,0.5);
}

.newsletter-form input:focus {
    outline: none;
    border-color: var(--green-400);
}

.btn-primary {
    padding: 12px 24px;
    background: var(--amber-500);
    color: var(--slate-900);
    border: none;
    border-radius: var(--radius-sm);
    font-size: 0.95rem;
    font-weight: 700;
    font-family: inherit;
    cursor: pointer;
    transition: var(--transition);
}

.btn-primary:hover {
    background: var(--amber-400);
}

.newsletter-note {
    font-size: 0.75rem;
    color: rgba(255,255,255,0.5);
    margin-top: 12px;
}

/* === Footer === */
.site-footer {
    background: var(--slate-900);
    color: var(--slate-400);
    padding: 48px 0 24px;
}

.footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1fr;
    gap: 40px;
    margin-bottom: 32px;
}

.footer-col h4 {
    color: var(--white);
    font-size: 0.9rem;
    font-weight: 700;
    margin-bottom: 16px;
}

.footer-col p {
    font-size: 0.85rem;
    line-height: 1.6;
}

.footer-col ul {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.footer-col ul li a {
    color: var(--slate-400);
    font-size: 0.85rem;
    transition: var(--transition);
}

.footer-col ul li a:hover {
    color: var(--green-400);
}

.footer-bottom {
    border-top: 1px solid var(--slate-800);
    padding-top: 24px;
    text-align: center;
    font-size: 0.8rem;
}

.footer-bottom a {
    color: var(--green-400);
}

/* === No Results === */
.no-results {
    text-align: center;
    padding: 60px 20px;
    color: var(--slate-500);
}

.no-results p {
    font-size: 1.1rem;
}

/* === Product Page Specific === */
.product-page-header {
    background: linear-gradient(135deg, var(--green-800) 0%, var(--green-600) 100%);
    color: var(--white);
    padding: 40px 0;
    text-align: center;
}

.product-page-header h1 {
    font-size: 2rem;
    font-weight: 800;
}

.product-page-header p {
    color: var(--green-100);
    margin-top: 8px;
}

/* === Product Detail === */
.product-detail {
    background: var(--white);
    border: 1px solid var(--slate-200);
    border-radius: var(--radius-lg);
    padding: 32px;
    margin-bottom: 32px;
}

.product-detail-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    gap: 20px;
    margin-bottom: 24px;
}

.product-detail-header h2 {
    font-size: 1.5rem;
    font-weight: 800;
    color: var(--slate-900);
}

.product-detail-price {
    font-size: 1.5rem;
    font-weight: 800;
    color: var(--green-700);
    white-space: nowrap;
}

.specs-table {
    width: 100%;
    border-collapse: collapse;
    margin: 20px 0;
}

.specs-table th,
.specs-table td {
    padding: 12px 16px;
    text-align: left;
    border-bottom: 1px solid var(--slate-200);
    font-size: 0.9rem;
}

.specs-table th {
    background: var(--slate-50);
    font-weight: 700;
    color: var(--slate-700);
    width: 40%;
}

.specs-table td {
    color: var(--slate-600);
}

.pros-cons-section {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 32px;
    margin: 24px 0;
}

.pros-cons-section h4 {
    font-size: 0.85rem;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    margin-bottom: 12px;
}

.pros-cons-section h4.pros-heading { color: var(--green-700); }
.pros-cons-section h4.cons-heading { color: #ef4444; }

.pros-cons-list {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.pros-cons-list li {
    font-size: 0.9rem;
    color: var(--slate-600);
    padding-left: 20px;
    position: relative;
}

.pros-cons-list li::before {
    content: '✓';
    position: absolute;
    left: 0;
    color: var(--green-600);
    font-weight: 700;
}

.con-list li::before {
    content: '✗';
    color: #ef4444;
}

.retailers-section {
    margin: 24px 0;
}

.retailers-section h4 {
    font-size: 0.85rem;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    color: var(--slate-700);
    font-weight: 700;
    margin-bottom: 12px;
}

/* === Category Page === */
.category-products {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(360px, 1fr));
    gap: 24px;
}

/* === Responsive === */
@media (max-width: 768px) {
    .main-nav { display: none; }

    .hero { padding: 48px 0 36px; }
    .hero h1 { font-size: 1.75rem; }

    .stats-grid { grid-template-columns: repeat(2, 1fr); }

    .products-grid,
    .category-products { grid-template-columns: 1fr; }

    .product-specs { grid-template-columns: 1fr; }

    .product-pros-cons { grid-template-columns: 1fr; }

    .categories-grid { grid-template-columns: repeat(2, 1fr); }

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

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

    .newsletter-form { flex-direction: column; }

    .newsletter-form input { min-width: auto; }

    .product-detail-header { flex-direction: column; }

    .pros-cons-section { grid-template-columns: 1fr; }

    .filter-tags { gap: 6px; }
    .filter-btn { padding: 6px 12px; font-size: 0.8rem; }
}

@media (max-width: 480px) {
    .categories-grid { grid-template-columns: 1fr; }
    .footer-grid { grid-template-columns: 1fr; }
    .stats-grid { grid-template-columns: 1fr 1fr; }
}