:root {
    --primary: #f39c12;
    --primary-dark: #d35400;
    --secondary: #2c3e50;
    --accent: #27ae60;
    --light: #f4f7f6;
    --white: #ffffff;
    --text: #333333;
    --text-muted: #777777;
    --shadow: 0 10px 30px rgba(0,0,0,0.08);
    --radius: 16px;
    --glass: rgba(255, 255, 255, 0.7);
}

.app-container {
    font-family: 'Outfit', sans-serif;
    color: var(--text);
    background-color: var(--light);
    line-height: 1.6;
}

.app-container div,
.app-container section,
.app-container header,
.app-container nav,
.app-container main,
.app-container footer,
.app-container h1,
.app-container h2,
.app-container h3,
.app-container p,
.app-container ul,
.app-container li,
.app-container a,
.app-container span,
.app-container table,
.app-container thead,
.app-container tbody,
.app-container tr,
.app-container th,
.app-container td,
.app-container img,
.app-container button,
.app-container strong,
.app-container b {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

/* Ad Disclosure */
.app-container .ad-disclosure {
    background: #fff;
    padding: 12px;
    text-align: center;
    font-size: 0.8rem;
    color: #999;
    border-bottom: 1px solid #eee;
}

/* Header */
.app-container header {
    background: var(--glass);
    backdrop-filter: blur(10px);
    padding: 20px 0;
    position: sticky;
    top: 0;
    z-index: 1000;
    border-bottom: 1px solid rgba(0,0,0,0.05);
}

.app-container nav {
    max-width: 1200px;
    margin: 0 auto;
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0 20px;
}

.app-container .logo {
    font-size: 1.8rem;
    font-weight: 800;
    color: var(--secondary);
    letter-spacing: -1px;
}

.app-container .logo::after { content: '.'; color: var(--primary); }

.app-container .tagline {
    font-size: 0.85rem;
    color: var(--text-muted);
}

/* Hero */
.app-container .hero {
    min-height: 70vh;
    padding: 100px 20px;
    text-align: center;
    background: radial-gradient(circle at center, #fff9f0 0%, #f4f7f6 100%);
    display: flex;
    justify-content: center;
    align-items: center;
    position: relative;
    overflow: hidden;
}

.app-container .hero::before {
    content: '';
    position: absolute;
    width: 200%;
    height: 200%;
    background: radial-gradient(circle, rgba(243, 156, 18, 0.05) 0%, transparent 70%);
    top: -50%;
    left: -50%;
    z-index: 0;
}

.app-container .hero-content {
    max-width: 900px;
    position: relative;
    z-index: 1;
}

.app-container .hero h1 {
    font-size: 4.5rem;
    font-weight: 800;
    margin-bottom: 24px;
    color: var(--secondary);
    line-height: 1.05;
    letter-spacing: -2px;
}

.app-container .hero p {
    font-size: 1.25rem;
    color: var(--text-muted);
    margin-bottom: 40px;
}

.app-container .hero-buttons {
    display: flex;
    gap: 16px;
    justify-content: center;
}

.app-container .cta-primary {
    background: var(--primary);
    color: white;
    padding: 18px 36px;
    border-radius: 50px;
    text-decoration: none;
    font-weight: 700;
    transition: all 0.3s;
    box-shadow: 0 10px 20px rgba(243, 156, 18, 0.3);
}

.app-container .cta-primary:hover {
    background: var(--primary-dark);
    transform: translateY(-2px);
}

.app-container .cta-secondary {
    background: white;
    color: var(--secondary);
    padding: 18px 36px;
    border-radius: 50px;
    text-decoration: none;
    font-weight: 700;
    border: 1px solid #ddd;
    transition: all 0.3s;
}

/* Comparison Table */
.app-container .comparison-overview {
    max-width: 1200px;
    margin: -60px auto 100px;
    padding: 0 20px;
}

.app-container .section-title {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 24px;
}

.app-container .pill {
    background: var(--accent);
    color: white;
    padding: 4px 12px;
    border-radius: 50px;
    font-size: 0.75rem;
    font-weight: 600;
}

.app-container .table-wrapper {
    background: white;
    border-radius: var(--radius);
    box-shadow: var(--shadow);
    overflow: hidden;
    overflow-x: auto;
}

.app-container .comparison-table {
    width: 100%;
    border-collapse: collapse;
    min-width: 800px;
}

.app-container .comparison-table th {
    background: #f8f9fa;
    padding: 20px;
    text-align: left;
    font-size: 0.85rem;
    text-transform: uppercase;
    color: var(--text-muted);
    border-bottom: 1px solid #eee;
}

.app-container .comparison-table tr {
    transition: background 0.2s;
}

.app-container .comparison-table tbody tr:hover {
    background-color: #fdfdfd;
}

.app-container .comparison-table td {
    padding: 24px 20px;
    border-bottom: 1px solid #f2f2f2;
    vertical-align: middle;
}

.app-container .product-name {
    font-size: 1.1rem;
    color: var(--secondary);
}

.app-container .feat-pill {
    background: #e3f2fd;
    color: #1976d2;
    padding: 4px 12px;
    border-radius: 4px;
    font-size: 0.8rem;
    font-weight: 600;
}

.app-container .feat-pill.gold { background: #fff8e1; color: #ffa000; }

.app-container .price {
    font-weight: 700;
    color: var(--secondary);
}

.app-container .cta-mini {
    background: var(--primary);
    color: white;
    padding: 10px 20px;
    border-radius: 8px;
    text-decoration: none;
    font-size: 0.9rem;
    font-weight: 600;
}

/* Product Grid */
.app-container .product-grid {
    max-width: 1200px;
    margin: 80px auto;
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 32px;
    padding: 0 20px;
}

.app-container .product-card {
    background: white;
    border-radius: var(--radius);
    overflow: hidden;
    box-shadow: var(--shadow);
    transition: transform 0.3s;
    position: relative;
    display: flex;
    flex-direction: column;
}

.app-container .product-card:hover { transform: translateY(-8px); }

.app-container .card-badge {
    position: absolute;
    top: 20px;
    left: 20px;
    background: var(--accent);
    color: white;
    padding: 6px 14px;
    border-radius: 50px;
    font-size: 0.75rem;
    font-weight: 700;
    z-index: 10;
}

.app-container .image-container {
    height: 250px;
    overflow: hidden;
}

.app-container .image-container img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.app-container .card-body {
    padding: 32px;
    flex-grow: 1;
    display: flex;
    flex-direction: column;
}

.app-container .category {
    font-size: 0.75rem;
    text-transform: uppercase;
    color: var(--primary);
    font-weight: 700;
    margin-bottom: 8px;
}

.app-container .card-body h2 {
    font-size: 1.5rem;
    margin-bottom: 24px;
    color: var(--secondary);
}

.app-container .specs-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 12px;
    margin-bottom: 24px;
}

.app-container .spec-item {
    background: #f8f9fa;
    padding: 12px;
    border-radius: 8px;
    text-align: center;
}

.app-container .spec-item .label {
    display: block;
    font-size: 0.65rem;
    color: var(--text-muted);
    margin-bottom: 4px;
}

.app-container .spec-item .val {
    font-weight: 700;
    font-size: 0.9rem;
}

.app-container .feature-list {
    list-style: none;
    margin-bottom: 32px;
}

.app-container .feature-list li {
    padding-left: 24px;
    position: relative;
    margin-bottom: 12px;
    font-size: 0.95rem;
    color: #555;
}

.app-container .feature-list li::before {
    content: "✓";
    position: absolute;
    left: 0;
    color: var(--accent);
    font-weight: 800;
}

.app-container .product-info-sections {
    display: flex;
    flex-direction: column;
    gap: 20px;
    margin-bottom: 30px;
}

.app-container .info-block h3 {
    font-size: 0.9rem;
    text-transform: uppercase;
    color: var(--secondary);
    margin-bottom: 15px;
    letter-spacing: 0.5px;
    border-bottom: 1px solid #eee;
    padding-bottom: 5px;
}

.app-container .adv-list {
    list-style: none;
    padding: 0;
}

.app-container .adv-list li {
    padding-left: 24px;
    position: relative;
    margin-bottom: 8px;
    font-size: 0.95rem;
    color: #555;
}

.app-container .adv-list li::before {
    content: "+";
    position: absolute;
    left: 0;
    color: var(--primary);
    font-weight: 800;
}

.app-container .benefit-txt {
    font-size: 0.95rem;
    color: var(--text-dark);
    font-style: italic;
    background: #fff8e1;
    padding: 15px;
    border-radius: 8px;
    border-left: 4px solid var(--primary);
}

.app-container .cta-action {
    margin-top: auto;
    background: var(--secondary);
    color: white;
    text-align: center;
    padding: 16px;
    border-radius: 12px;
    text-decoration: none;
    font-weight: 700;
    transition: background 0.3s;
}

.app-container .cta-action:hover { background: #1a252f; }

/* Benefits */
.app-container .benefits {
    padding: 100px 20px;
    background: #fff;
}

.app-container .section-header {
    text-align: center;
    max-width: 600px;
    margin: 0 auto 60px;
}

.app-container .benefits-grid {
    max-width: 1200px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 40px;
}

.app-container .benefit-card {
    text-align: center;
    padding: 40px;
    border-radius: var(--radius);
    background: var(--light);
}

.app-container .benefit-card .icon {
    font-size: 3rem;
    margin-bottom: 24px;
}

/* Buyer's Guide */
.app-container .buyers-guide {
    padding: 100px 20px;
    background: #fff;
}

.app-container .buyers-guide .section-header {
    text-align: center;
    margin-bottom: 60px;
}

.app-container .guide-container {
    max-width: 1200px;
    margin: 0 auto;
}

.app-container .guide-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
}

.app-container .guide-box {
    padding: 40px;
    border-radius: var(--radius);
    background: var(--light);
    border: 1px solid transparent;
    transition: all 0.3s;
}

.app-container .guide-box:hover {
    background: white;
    border-color: var(--primary);
    transform: translateY(-5px);
    box-shadow: var(--shadow);
}

.app-container .guide-box h3 {
    color: var(--primary);
    margin-bottom: 20px;
    font-size: 1.4rem;
}

/* Installation Steps */
.app-container .installation-steps {
    padding: 100px 20px;
    background: var(--white);
}

.app-container .steps-container {
    max-width: 1200px;
    margin: 0 auto;
    display: flex;
    justify-content: space-between;
    gap: 40px;
}

.app-container .step {
    flex: 1;
    text-align: center;
}

.app-container .step-number {
    width: 60px;
    height: 60px;
    background: var(--primary);
    color: white;
    border-radius: 50%;
    display: flex;
    justify-content: center;
    align-items: center;
    font-size: 1.5rem;
    font-weight: 800;
    margin: 0 auto 24px;
    box-shadow: 0 8px 20px rgba(243, 156, 18, 0.3);
}

.app-container .step h3 {
    margin-bottom: 16px;
    color: var(--secondary);
}

/* FAQ */
.app-container .faq-section {
    padding: 100px 20px;
    background: var(--light);
}

.app-container .faq-container {
    max-width: 800px;
    margin: 0 auto;
}

.app-container .faq-item {
    background: white;
    padding: 32px;
    border-radius: 12px;
    margin-bottom: 24px;
    box-shadow: 0 4px 10px rgba(0,0,0,0.02);
}

.app-container .faq-q {
    font-weight: 700;
    margin-bottom: 12px;
    color: var(--secondary);
    font-size: 1.1rem;
}

.app-container .faq-a {
    font-size: 0.95rem;
    color: #555;
}

/* CTA Banner */
.app-container .cta-banner {
    padding: 100px 20px;
    background: linear-gradient(135deg, var(--secondary) 0%, #1a252f 100%);
    color: white;
    text-align: center;
    border-radius: 40px;
    margin: 80px 20px;
    position: relative;
    overflow: hidden;
    box-shadow: 0 20px 50px rgba(0,0,0,0.2);
}

.app-container .cta-banner::before {
    content: '';
    position: absolute;
    width: 100%;
    height: 100%;
    background: url('https://www.transparenttextures.com/patterns/carbon-fibre.png');
    opacity: 0.1;
    top: 0; left: 0;
}

.app-container .banner-content {
    position: relative;
    z-index: 1;
    max-width: 800px;
    margin: 0 auto;
}

.app-container .cta-banner h2 {
    font-size: 3.2rem;
    font-weight: 800;
    margin-bottom: 24px;
    letter-spacing: -1px;
}

.app-container .cta-banner p {
    font-size: 1.2rem;
    margin-bottom: 40px;
    opacity: 0.9;
}

.app-container .cta-gold {
    display: inline-block;
    background: var(--primary);
    color: white;
    padding: 22px 48px;
    border-radius: 50px;
    text-decoration: none;
    font-weight: 700;
    font-size: 1.2rem;
    transition: all 0.3s cubic-bezier(0.175, 0.885, 0.32, 1.275);
    box-shadow: 0 10px 30px rgba(243, 156, 18, 0.4);
}

.app-container .cta-gold:hover {
    background: var(--primary-dark);
    transform: scale(1.05);
    box-shadow: 0 15px 40px rgba(243, 156, 18, 0.5);
}

/* Footer */
.app-container footer {
    background: var(--secondary);
    color: #fff;
}

.app-container .footer-main {
    max-width: 1200px;
    margin: 0 auto;
    padding: 60px 20px;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.app-container .footer-logo {
    font-size: 1.5rem;
    font-weight: 800;
}

.app-container .footer-links {
    display: flex;
    gap: 24px;
}

.app-container .footer-links a { 
    color: #ccc; 
    text-decoration: none; 
    font-size: 0.9rem; 
    transition: color 0.2s, transform 0.2s;
    display: inline-block;
}

.app-container .footer-links a:hover {
    color: var(--primary);
    transform: translateY(-2px);
}

.app-container .footer-bottom {
    border-top: 1px solid rgba(255,255,255,0.05);
    padding: 30px;
    text-align: center;
    font-size: 0.8rem;
    color: #666;
}

/* Overlay & Popup Reset */
.app-container .overlay {
    position: fixed;
    top: 0; left: 0; width: 100%; height: 100%;
    background: rgba(0,0,0,0.8);
    display: none;
    justify-content: center;
    align-items: center;
    z-index: 2000;
}

.app-container .popup {
    background: white;
    padding: 40px;
    border-radius: 20px;
    max-width: 600px;
    width: 90%;
    position: relative;
    max-height: 80vh;
    overflow-y: auto;
}

.app-container .close-popup {
    position: absolute;
    top: 20px; right: 20px;
    background: none; border: none; font-size: 2rem;
    cursor: pointer;
}

.app-container .hidden { display: none; }

/* Responsive Adjustments */
@media (max-width: 768px) {
    .app-container .hero h1 { 
        font-size: 2.2rem; 
        line-height: 1.2;
    }
    
    .app-container .hero p {
        font-size: 1.1rem;
    }

    .app-container .hero { 
        padding: 60px 20px; 
    }

    .app-container nav {
        flex-direction: column;
        gap: 10px;
        text-align: center;
    }

    .app-container .product-grid {
        grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    }

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

    .app-container .footer-main { 
        flex-direction: column; 
        gap: 30px; 
        text-align: center; 
    }

    .app-container .footer-links {
        justify-content: center;
    }

    .app-container .comparison-table th, 
    .app-container .comparison-table td {
        padding: 12px 10px;
        font-size: 0.8rem;
    }

    .app-container .steps-container {
        flex-direction: column;
        align-items: center;
        gap: 60px;
    }

    .app-container .product-name {
        font-size: 0.9rem;
    }
}

@media (max-width: 480px) {
    .app-container .hero h1 {
        font-size: 1.8rem;
    }
    
    .app-container .hero-buttons {
        flex-direction: column;
        width: 100%;
    }
    
    .app-container .cta-primary,
    .app-container .cta-secondary {
        width: 100%;
        text-align: center;
    }

    .app-container .table-wrapper {
        margin: 0 -10px;
        border-radius: 0;
    }
}