/* Product Page Shared Styles */
:root {
    --bg-main: #f8fafc;
    --bg-card: #fff;
    --text-primary: #0f172a;
    --text-secondary: #64748b;
    --text-accent: #6366f1;
    --border-color: #e2e8f0;
    --radius-lg: 16px;
    --radius-xl: 24px;
    --gradient-primary: linear-gradient(135deg, #6366f1 0%, #8b5cf6 100%)
}

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

body {
    font-family: 'Inter', -apple-system, sans-serif;
    background: linear-gradient(180deg, #f8fafc 0%, #e2e8f0 100%);
    color: var(--text-secondary);
    line-height: 1.7;
    min-height: 100vh
}

.container {
    max-width: 1100px;
    margin: 0 auto;
    padding: 40px 24px
}

.back-link {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    color: var(--text-secondary);
    text-decoration: none;
    font-size: .9rem;
    margin-bottom: 40px;
    transition: color .2s
}

.back-link:hover {
    color: var(--text-primary)
}

.product-hero {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 48px;
    margin-bottom: 60px;
    align-items: start
}

.product-image {
    border-radius: var(--radius-xl);
    overflow: hidden;
    box-shadow: 0 10px 40px rgba(0, 0, 0, .1)
}

.product-image img {
    width: 100%;
    height: 320px;
    object-fit: cover
}

.product-info .badge {
    display: inline-block;
    padding: 6px 14px;
    border-radius: 8px;
    font-size: .75rem;
    font-weight: 700;
    text-transform: uppercase;
    margin-bottom: 16px;
    color: #fff
}

.product-info .badge.popular {
    background: #ef4444
}

.product-info .badge.new {
    background: #22c55e
}

.product-info .badge.hot {
    background: #f59e0b
}

.product-info .category {
    color: var(--text-accent);
    font-size: .9rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: .05em;
    margin-bottom: 8px
}

.product-info h1 {
    font-size: 2.4rem;
    font-weight: 800;
    color: var(--text-primary);
    margin-bottom: 16px;
    line-height: 1.2
}

.product-info .description {
    font-size: 1.1rem;
    margin-bottom: 24px
}

.usp-block {
    background: linear-gradient(135deg, rgba(99, 102, 241, .1) 0%, rgba(139, 92, 246, .1) 100%);
    border-radius: var(--radius-lg);
    padding: 20px;
    margin-bottom: 24px;
    border-left: 4px solid var(--text-accent)
}

.usp-block h3 {
    font-size: 1rem;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 8px
}

.usp-block p {
    font-size: .95rem;
    color: var(--text-secondary)
}

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

.tariff-card {
    background: var(--bg-card);
    border-radius: var(--radius-lg);
    padding: 16px;
    text-align: center;
    border: 2px solid transparent;
    transition: all .2s
}

.tariff-card.recommended {
    border-color: var(--text-accent);
    background: linear-gradient(135deg, rgba(99, 102, 241, .05) 0%, rgba(139, 92, 246, .05) 100%)
}

.tariff-card .label {
    font-size: .75rem;
    font-weight: 700;
    text-transform: uppercase;
    margin-bottom: 8px;
    color: var(--text-secondary)
}

.tariff-card.recommended .label {
    color: var(--text-accent)
}

.tariff-card .tariff-price {
    font-size: 1.3rem;
    font-weight: 800;
    color: var(--text-primary)
}

.btn-primary {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    padding: 16px 32px;
    background: var(--text-accent);
    color: #fff;
    text-decoration: none;
    border-radius: 12px;
    font-weight: 600;
    font-size: 1rem;
    transition: all .2s;
    width: 100%;
    justify-content: center
}

.btn-primary:hover {
    background: #5457e5;
    transform: translateY(-2px)
}

.section {
    margin-bottom: 48px
}

.section h2 {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 20px
}

.feature-list {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 16px
}

.feature-item {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 16px;
    background: var(--bg-card);
    border-radius: var(--radius-lg);
    box-shadow: 0 2px 10px rgba(0, 0, 0, .03)
}

.feature-item .icon {
    width: 40px;
    height: 40px;
    background: rgba(99, 102, 241, .1);
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-accent)
}

.feature-item span {
    font-weight: 500;
    color: var(--text-primary)
}

.process-list {
    display: flex;
    flex-direction: column;
    gap: 16px
}

.process-item {
    display: flex;
    gap: 16px;
    padding: 20px;
    background: var(--bg-card);
    border-radius: var(--radius-lg);
    box-shadow: 0 2px 10px rgba(0, 0, 0, .03)
}

.process-item .num {
    width: 36px;
    height: 36px;
    background: var(--text-accent);
    color: #fff;
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    flex-shrink: 0
}

.process-item .content h4 {
    color: var(--text-primary);
    font-weight: 600;
    margin-bottom: 4px
}

.cta-section {
    background: var(--gradient-primary);
    border-radius: var(--radius-xl);
    padding: 40px;
    text-align: center;
    margin-bottom: 48px
}

.cta-section h2 {
    color: #fff;
    font-size: 1.8rem;
    margin-bottom: 12px
}

.cta-section p {
    color: rgba(255, 255, 255, .9);
    margin-bottom: 24px
}

.cta-section .btn-white {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    padding: 16px 32px;
    background: #fff;
    color: var(--text-accent);
    text-decoration: none;
    border-radius: 12px;
    font-weight: 600;
    font-size: 1rem;
    transition: all .2s
}

.cta-section .btn-white:hover {
    transform: translateY(-2px);
    box-shadow: 0 10px 30px rgba(0, 0, 0, .2)
}

.related-section,
.articles-section {
    margin-bottom: 48px
}

.related-section h2,
.articles-section h2 {
    font-size: 1.3rem;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 20px;
    display: flex;
    align-items: center;
    gap: 10px
}

.related-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 20px
}

.related-card {
    background: var(--bg-card);
    border-radius: var(--radius-lg);
    overflow: hidden;
    text-decoration: none;
    transition: all .3s;
    box-shadow: 0 4px 15px rgba(0, 0, 0, .04)
}

.related-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 10px 30px rgba(99, 102, 241, .1)
}

.related-card img {
    width: 100%;
    height: 120px;
    object-fit: cover
}

.related-card .content {
    padding: 16px
}

.related-card h4 {
    font-size: 1rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 6px
}

.related-card .price {
    font-size: .9rem;
    font-weight: 700;
    color: var(--text-accent)
}

.article-card {
    display: flex;
    gap: 16px;
    padding: 16px;
    background: var(--bg-card);
    border-radius: var(--radius-lg);
    text-decoration: none;
    transition: all .2s;
    margin-bottom: 12px;
    box-shadow: 0 2px 10px rgba(0, 0, 0, .03)
}

.article-card:hover {
    background: rgba(99, 102, 241, .05)
}

.article-card img {
    width: 80px;
    height: 60px;
    object-fit: cover;
    border-radius: 8px;
    flex-shrink: 0
}

.article-card .text h4 {
    font-size: .95rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 4px
}

.article-card .text p {
    font-size: .85rem;
    color: var(--text-secondary)
}

@media(max-width:768px) {
    .product-hero {
        grid-template-columns: 1fr
    }

    .feature-list {
        grid-template-columns: 1fr
    }

    .related-grid {
        grid-template-columns: 1fr
    }

    .tariffs {
        grid-template-columns: 1fr
    }
}