/* Bermain Excel - Modern Minimalist Design */
@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700&display=swap');

:root {
    --primary: #1a1a1a;
    --primary-light: #2d2d2d;
    --accent: #3b82f6;
    --accent-hover: #2563eb;
    --text: #1f2937;
    --text-light: #6b7280;
    --bg: #ffffff;
    --bg-alt: #f9fafb;
    --border: #e5e7eb;
    --success: #10b981;
    --shadow-sm: 0 1px 2px 0 rgb(0 0 0 / 0.05);
    --shadow: 0 4px 6px -1px rgb(0 0 0 / 0.1);
    --shadow-lg: 0 10px 15px -3px rgb(0 0 0 / 0.1);
    --shadow-xl: 0 20px 25px -5px rgb(0 0 0 / 0.1);
}

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

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, system-ui, sans-serif;
    line-height: 1.6;
    color: var(--text);
    background: var(--bg);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

.container {
    max-width: 1280px;
    margin: 0 auto;
    padding: 0 1.5rem;
}

/* Header */
header {
    background: var(--bg);
    border-bottom: 1px solid var(--border);
    position: sticky;
    top: 0;
    z-index: 100;
    backdrop-filter: blur(10px);
    background: rgba(255, 255, 255, 0.9);
}

.header-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem 0;
}

.logo {
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--primary);
    text-decoration: none;
    letter-spacing: -0.025em;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

nav ul {
    display: flex;
    list-style: none;
    gap: 2rem;
}

nav a {
    color: var(--text-light);
    text-decoration: none;
    font-size: 0.9375rem;
    font-weight: 500;
    transition: color 0.2s;
}

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

/* Hero */
.hero {
    background: linear-gradient(180deg, var(--bg-alt) 0%, var(--bg) 100%);
    padding: 5rem 0;
    text-align: center;
}

.hero h1 {
    font-size: clamp(2.5rem, 5vw, 4rem);
    font-weight: 700;
    color: var(--primary);
    line-height: 1.1;
    margin-bottom: 1.5rem;
    letter-spacing: -0.03em;
}

.hero p {
    font-size: 1.25rem;
    color: var(--text-light);
    max-width: 700px;
    margin: 0 auto 3rem;
    line-height: 1.7;
}

.search-box {
    max-width: 600px;
    margin: 0 auto;
    display: flex;
    gap: 0.75rem;
    background: white;
    padding: 0.5rem;
    border-radius: 12px;
    box-shadow: var(--shadow-lg);
}

.search-box input {
    flex: 1;
    border: none;
    padding: 0.875rem 1rem;
    font-size: 1rem;
    font-family: inherit;
    background: transparent;
}

.search-box input:focus {
    outline: none;
}

.search-box input::placeholder {
    color: var(--text-light);
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 0.875rem 1.75rem;
    font-size: 0.9375rem;
    font-weight: 600;
    border-radius: 8px;
    border: none;
    cursor: pointer;
    text-decoration: none;
    transition: all 0.2s;
    font-family: inherit;
}

.btn-primary {
    background: var(--accent);
    color: white;
}

.btn-primary:hover {
    background: var(--accent-hover);
    transform: translateY(-1px);
    box-shadow: var(--shadow);
}

/* Categories Section */
.main-categories {
    padding: 5rem 0;
}

.section-title {
    font-size: clamp(2rem, 4vw, 2.75rem);
    font-weight: 700;
    text-align: center;
    color: var(--primary);
    margin-bottom: 1rem;
    letter-spacing: -0.025em;
}

.section-subtitle {
    text-align: center;
    font-size: 1.125rem;
    color: var(--text-light);
    margin-bottom: 3.5rem;
}

.main-category-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(400px, 1fr));
    gap: 2rem;
}

.main-category-card {
    background: var(--bg);
    border: 1px solid var(--border);
    border-radius: 16px;
    padding: 2.5rem;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.main-category-card:hover {
    border-color: var(--accent);
    box-shadow: var(--shadow-xl);
    transform: translateY(-4px);
}

.main-category-header {
    text-align: center;
    margin-bottom: 2rem;
}

.main-category-icon {
    font-size: 3rem;
    margin-bottom: 1rem;
}

.main-category-header h3 {
    font-size: 1.75rem;
    font-weight: 700;
    color: var(--primary);
    margin-bottom: 0.5rem;
    letter-spacing: -0.02em;
}

.main-category-header p {
    color: var(--text-light);
    font-size: 1rem;
}

.subcategories {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 0.75rem;
}

.subcategory-link {
    padding: 0.875rem 1rem;
    background: var(--bg-alt);
    border-radius: 10px;
    text-decoration: none;
    color: var(--text);
    font-size: 0.9375rem;
    font-weight: 500;
    text-align: center;
    transition: all 0.2s;
}

.subcategory-link:hover {
    background: var(--accent);
    color: white;
    transform: scale(1.02);
}

/* Featured Preview in Category Cards */
.featured-preview {
    margin-top: 2rem;
    padding-top: 2rem;
    border-top: 1px solid var(--border);
}

.featured-preview h4 {
    font-size: 0.875rem;
    font-weight: 600;
    color: var(--text-light);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-bottom: 1rem;
    text-align: center;
}

.preview-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 0.75rem;
}

.preview-item {
    text-decoration: none;
    color: inherit;
    display: block;
    transition: transform 0.2s;
}

.preview-item:hover {
    transform: scale(1.05);
}

.preview-item img,
.preview-placeholder {
    width: 100%;
    aspect-ratio: 1;
    object-fit: cover;
    border-radius: 8px;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    margin-bottom: 0.5rem;
}

.preview-info {
    display: flex;
    flex-direction: column;
    gap: 0.25rem;
}

.preview-title {
    font-size: 0.75rem;
    font-weight: 500;
    color: var(--text);
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.preview-price {
    font-size: 0.875rem;
    font-weight: 700;
    color: var(--accent);
}

/* Products */
.products {
    padding: 5rem 0;
    background: var(--bg-alt);
}

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

.product-card {
    background: var(--bg);
    border-radius: 16px;
    overflow: hidden;
    border: 1px solid var(--border);
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.product-card:hover {
    border-color: var(--accent);
    box-shadow: var(--shadow-xl);
    transform: translateY(-4px);
}

.product-image {
    width: 100%;
    height: 240px;
    object-fit: cover;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
}

.product-content {
    padding: 1.75rem;
}

.badge {
    display: inline-block;
    padding: 0.375rem 0.75rem;
    background: var(--accent);
    color: white;
    border-radius: 6px;
    font-size: 0.8125rem;
    font-weight: 600;
    margin-bottom: 0.875rem;
}

.product-title {
    font-size: 1.25rem;
    font-weight: 700;
    margin-bottom: 0.75rem;
    line-height: 1.4;
}

.product-title a {
    color: var(--primary);
    text-decoration: none;
    transition: color 0.2s;
}

.product-title a:hover {
    color: var(--accent);
}

.product-description {
    color: var(--text-light);
    margin-bottom: 1.25rem;
    font-size: 0.9375rem;
    line-height: 1.6;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.product-price {
    font-size: 1.875rem;
    font-weight: 700;
    color: var(--primary);
    margin-bottom: 1.25rem;
}

.product-card .btn {
    width: 100%;
}

/* Footer */
footer {
    background: var(--primary);
    color: white;
    padding: 4rem 0 2rem;
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 3rem;
    margin-bottom: 3rem;
}

footer h4 {
    font-size: 1.125rem;
    font-weight: 600;
    margin-bottom: 1.25rem;
}

footer a {
    color: rgba(255, 255, 255, 0.7);
    text-decoration: none;
    transition: color 0.2s;
}

footer a:hover {
    color: white;
}

footer ul {
    list-style: none;
}

footer li {
    margin-bottom: 0.75rem;
}

.copyright {
    text-align: center;
    padding-top: 2rem;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    color: rgba(255, 255, 255, 0.5);
    font-size: 0.9375rem;
}

/* Responsive */
@media (max-width: 1024px) {
    .main-category-grid {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 768px) {
    .hero {
        padding: 3rem 0;
    }
    
    .hero h1 {
        font-size: 2rem;
    }
    
    .hero p {
        font-size: 1rem;
    }
    
    .header-content {
        flex-direction: column;
        gap: 1rem;
    }
    
    nav ul {
        gap: 1.5rem;
    }
    
    .search-box {
        flex-direction: column;
    }
    
    .main-category-grid,
    .product-grid {
        grid-template-columns: 1fr;
    }
    
    .subcategories {
        grid-template-columns: 1fr;
    }
}

/* Utility */
.text-center { text-align: center; }
.mt-1 { margin-top: 1rem; }
.mt-2 { margin-top: 2rem; }
.mb-1 { margin-bottom: 1rem; }
.mb-2 { margin-bottom: 2rem; }