/* CSS Variables */
:root {
    --primary: #6366f1;
    --primary-dark: #4f46e5;
    --secondary: #0ea5e9;
    --accent: #10b981;
    --dark: #0f172a;
    --dark-light: #1e293b;
    --gray: #64748b;
    --gray-light: #94a3b8;
    --light: #f1f5f9;
    --white: #ffffff;
    --gradient: linear-gradient(135deg, #6366f1 0%, #8b5cf6 100%);
    --shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -2px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -4px rgba(0, 0, 0, 0.1);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 8px 10px -6px rgba(0, 0, 0, 0.1);
    --radius: 12px;
    --radius-lg: 16px;
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    background-color: var(--light);
    color: var(--dark);
    line-height: 1.6;
}

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

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

ul {
    list-style: none;
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 14px 28px;
    border-radius: var(--radius);
    font-weight: 600;
    font-size: 1rem;
    transition: all 0.3s ease;
    cursor: pointer;
    border: none;
}

.btn-primary {
    background: var(--gradient);
    color: var(--white);
    box-shadow: var(--shadow);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

.btn-secondary {
    background: var(--white);
    color: var(--primary);
    border: 2px solid var(--primary);
}

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

.btn-buy {
    background: #ff9900;
    color: var(--dark);
    width: 100%;
    font-weight: 700;
}

.btn-buy:hover {
    background: #e88b00;
    transform: translateY(-2px);
}

/* Header */
.header {
    background: var(--white);
    box-shadow: var(--shadow);
    position: sticky;
    top: 0;
    z-index: 1000;
}

.header-content {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 16px 0;
}

.logo {
    display: flex;
    align-items: center;
    gap: 10px;
}

.logo-icon {
    font-size: 1.8rem;
}

.logo-text {
    font-size: 1.4rem;
    font-weight: 800;
    color: var(--dark);
}

.logo-au {
    color: var(--primary);
}

.nav {
    display: flex;
    gap: 32px;
}

.nav a {
    font-weight: 500;
    color: var(--gray);
    transition: color 0.3s ease;
}

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

/* Hero Section */
.hero {
    background: var(--gradient);
    padding: 80px 0 100px;
    position: relative;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: url("data:image/svg+xml,%3Csvg width='60' height='60' viewBox='0 0 60 60' xmlns='http://www.w3.org/2000/svg'%3E%3Cg fill='none' fill-rule='evenodd'%3E%3Cg fill='%23ffffff' fill-opacity='0.05'%3E%3Cpath d='M36 34v-4h-2v4h-4v2h4v4h2v-4h4v-2h-4zm0-30V0h-2v4h-4v2h4v4h2V6h4V4h-4zM6 34v-4H4v4H0v2h4v4h2v-4h4v-2H6zM6 4V0H4v4H0v2h4v4h2V6h4V4H6z'/%3E%3C/g%3E%3C/g%3E%3C/svg%3E");
}

.hero-content {
    position: relative;
    text-align: center;
    max-width: 700px;
    margin: 0 auto;
}

.hero h1 {
    font-size: 3rem;
    font-weight: 800;
    color: var(--white);
    margin-bottom: 20px;
    line-height: 1.2;
}

.hero p {
    font-size: 1.2rem;
    color: rgba(255, 255, 255, 0.9);
    margin-bottom: 32px;
}

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

.hero .btn-primary:hover {
    background: var(--light);
}

/* Section Headers */
.section-header {
    text-align: center;
    margin-bottom: 48px;
}

.section-header h2 {
    font-size: 2.2rem;
    font-weight: 800;
    color: var(--dark);
    margin-bottom: 12px;
}

.section-header p {
    font-size: 1.1rem;
    color: var(--gray);
}

/* Products Section */
.products {
    padding: 80px 0;
    background: var(--light);
}

.product-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(340px, 1fr));
    gap: 28px;
}

.product-card {
    background: var(--white);
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow);
    transition: all 0.3s ease;
    position: relative;
}

.product-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-xl);
}

.product-badge {
    position: absolute;
    top: 16px;
    left: 16px;
    background: var(--primary);
    color: var(--white);
    padding: 6px 14px;
    border-radius: 20px;
    font-size: 0.8rem;
    font-weight: 600;
    z-index: 10;
}

.product-badge.popular {
    background: var(--secondary);
}

.product-badge.value {
    background: var(--accent);
}

.product-badge.budget {
    background: #f59e0b;
}

.product-image {
    background: linear-gradient(135deg, #f8fafc 0%, #e2e8f0 100%);
    padding: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.product-placeholder {
    width: 120px;
    height: 120px;
    background: var(--white);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 3rem;
    box-shadow: var(--shadow);
}

.product-content {
    padding: 24px;
}

.product-content h3 {
    font-size: 1.3rem;
    font-weight: 700;
    color: var(--dark);
    margin-bottom: 8px;
}

.product-rating {
    display: flex;
    align-items: center;
    gap: 8px;
    margin-bottom: 12px;
}

.stars {
    color: #fbbf24;
    font-size: 1rem;
}

.rating-text {
    color: var(--gray);
    font-size: 0.9rem;
    font-weight: 500;
}

.product-desc {
    color: var(--gray);
    font-size: 0.95rem;
    margin-bottom: 16px;
    line-height: 1.5;
}

.product-features {
    margin-bottom: 16px;
}

.product-features li {
    color: var(--gray);
    font-size: 0.9rem;
    padding: 4px 0;
    padding-left: 20px;
    position: relative;
}

.product-features li::before {
    content: '✓';
    position: absolute;
    left: 0;
    color: var(--accent);
    font-weight: 700;
}

.product-price {
    margin-bottom: 16px;
}

.price {
    font-size: 1.4rem;
    font-weight: 800;
    color: var(--dark);
}

.view-more {
    text-align: center;
    margin-top: 48px;
}

/* Features Section */
.features {
    padding: 80px 0;
    background: var(--white);
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 28px;
}

.feature-card {
    background: var(--light);
    padding: 32px;
    border-radius: var(--radius-lg);
    text-align: center;
    transition: all 0.3s ease;
}

.feature-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow);
}

.feature-icon {
    font-size: 2.5rem;
    margin-bottom: 16px;
}

.feature-card h3 {
    font-size: 1.2rem;
    font-weight: 700;
    color: var(--dark);
    margin-bottom: 12px;
}

.feature-card p {
    color: var(--gray);
    font-size: 0.95rem;
}

/* Guide Section */
.guide {
    padding: 80px 0;
    background: var(--dark);
}

.guide .section-header h2,
.guide .section-header p {
    color: var(--white);
}

.guide .section-header p {
    opacity: 0.8;
}

.guide-content {
    display: grid;
    gap: 32px;
}

.guide-item {
    background: var(--dark-light);
    padding: 32px;
    border-radius: var(--radius-lg);
    border-left: 4px solid var(--primary);
}

.guide-item h3 {
    font-size: 1.3rem;
    font-weight: 700;
    color: var(--white);
    margin-bottom: 16px;
}

.guide-item p {
    color: var(--gray-light);
    font-size: 0.95rem;
    margin-bottom: 12px;
    line-height: 1.7;
}

.guide-item p:last-child {
    margin-bottom: 0;
}

.guide-item strong {
    color: var(--white);
}

/* SEO Content Section */
.seo-content {
    padding: 80px 0;
    background: var(--light);
}

.seo-text {
    max-width: 900px;
    margin: 0 auto;
}

.seo-text h2 {
    font-size: 2rem;
    font-weight: 800;
    color: var(--dark);
    margin-bottom: 24px;
    text-align: center;
}

.seo-text p {
    color: var(--gray);
    font-size: 1rem;
    line-height: 1.8;
    margin-bottom: 20px;
    text-align: justify;
}

.seo-text p:last-child {
    margin-bottom: 0;
}

/* Footer */
.footer {
    background: var(--dark);
    color: var(--white);
    padding: 60px 0 30px;
}

.footer-content {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr;
    gap: 48px;
    margin-bottom: 40px;
}

.footer-brand .logo {
    margin-bottom: 16px;
}

.footer-brand .logo-text {
    color: var(--white);
}

.footer-brand p {
    color: var(--gray-light);
    font-size: 0.95rem;
}

.footer-links h4 {
    font-size: 1.1rem;
    font-weight: 700;
    margin-bottom: 20px;
}

.footer-links ul li {
    margin-bottom: 12px;
}

.footer-links a {
    color: var(--gray-light);
    font-size: 0.95rem;
    transition: color 0.3s ease;
}

.footer-links a:hover {
    color: var(--primary);
}

.footer-bottom {
    border-top: 1px solid var(--dark-light);
    padding-top: 24px;
    text-align: center;
}

.footer-bottom p {
    color: var(--gray-light);
    font-size: 0.9rem;
    margin-bottom: 8px;
}

.affiliate-disclosure {
    font-size: 0.85rem !important;
    opacity: 0.7;
}

/* Responsive Design */
@media (max-width: 768px) {
    .header-content {
        flex-direction: column;
        gap: 16px;
    }

    .nav {
        gap: 20px;
    }

    .hero {
        padding: 60px 0 80px;
    }

    .hero h1 {
        font-size: 2rem;
    }

    .hero p {
        font-size: 1rem;
    }

    .section-header h2 {
        font-size: 1.8rem;
    }

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

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

    .footer-content {
        grid-template-columns: 1fr;
        gap: 32px;
        text-align: center;
    }

    .footer-brand .logo {
        justify-content: center;
    }
}

@media (max-width: 480px) {
    .container {
        padding: 0 16px;
    }

    .hero h1 {
        font-size: 1.8rem;
    }

    .btn {
        padding: 12px 24px;
        font-size: 0.9rem;
    }

    .product-content {
        padding: 20px;
    }

    .nav {
        flex-wrap: wrap;
        justify-content: center;
        gap: 12px;
    }

    .nav a {
        font-size: 0.9rem;
    }
}