:root {
    --primary: #1f5fa8;
    --primary-dark: #164478;
    --dark: #142433;
    --light: #f5f7fa;
    --border: #e1e6ec;
    --success: #1f8a4c;
    --error: #b3261e;
}

* {
    box-sizing: border-box;
}

body {
    margin: 0;
    font-family: "Segoe UI", Roboto, Arial, sans-serif;
    background: var(--light);
    color: var(--dark);
    line-height: 1.5;
}

a {
    color: var(--primary);
}

.container {
    max-width: 1100px;
    margin: 0 auto;
    padding: 0 20px;
}

/* Header */

.site-header {
    background: var(--dark);
    color: #fff;
}

.header-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 16px 20px;
    flex-wrap: wrap;
    gap: 12px;
}

.site-header .logo {
    color: #fff;
    font-weight: bold;
    font-size: 1.25rem;
    text-decoration: none;
}

.main-nav {
    display: flex;
    gap: 20px;
    flex-wrap: wrap;
}

.main-nav a {
    color: #fff;
    text-decoration: none;
}

.main-nav a:hover {
    text-decoration: underline;
}

.nav-toggle {
    display: none;
    background: none;
    border: 1px solid #fff;
    color: #fff;
    border-radius: 6px;
    padding: 6px 12px;
    cursor: pointer;
}

/* Sections */

.section {
    padding: 32px 0;
}

.hero {
    padding: 48px 0 32px;
    text-align: center;
}

.hero p {
    max-width: 640px;
    margin: 12px auto 24px;
    color: #445;
}

.card-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
    gap: 16px;
}

.card {
    display: block;
    background: #fff;
    border-radius: 8px;
    padding: 20px;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.08);
    text-decoration: none;
    color: inherit;
    border: 1px solid transparent;
    transition: border-color 0.15s ease;
}

.card:hover {
    border-color: var(--primary);
}

.card h3 {
    margin-top: 0;
}

/* Buttons */

.button {
    display: inline-block;
    background: var(--primary);
    color: #fff;
    padding: 10px 22px;
    border-radius: 6px;
    text-decoration: none;
    font-weight: 600;
    border: none;
    cursor: pointer;
}

.button:hover {
    background: var(--primary-dark);
}

.button-secondary {
    background: transparent;
    color: var(--dark);
    border: 1px solid var(--border);
}

/* Product / service cards */

.product-specs,
.product-brand {
    color: #556;
    font-size: 0.9rem;
    margin: 4px 0;
}

.product-price {
    font-weight: 700;
    color: var(--primary-dark);
}

.product-price-large {
    font-size: 1.5rem;
}

.badge {
    display: inline-block;
    font-size: 0.8rem;
    padding: 2px 10px;
    border-radius: 999px;
    background: #eef2f7;
    color: #556;
}

.badge-success {
    background: #e6f6ec;
    color: var(--success);
}

.badge-muted {
    background: #f1f1f1;
    color: #777;
}

/* Breadcrumbs */

.breadcrumbs {
    font-size: 0.9rem;
    color: #667;
    margin: 20px 0;
}

.breadcrumbs a {
    text-decoration: none;
}

/* Filters */

.filters {
    display: flex;
    flex-wrap: wrap;
    gap: 16px;
    align-items: flex-end;
    background: #fff;
    border-radius: 8px;
    padding: 16px;
    margin-bottom: 24px;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.06);
}

.filters .form-row {
    display: flex;
    flex-direction: column;
    gap: 4px;
    min-width: 160px;
}

.filters label {
    font-size: 0.85rem;
    color: #556;
}

.filters select,
.filters input {
    padding: 8px;
    border: 1px solid var(--border);
    border-radius: 6px;
}

/* Product detail */

.product-detail {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 32px;
    margin-bottom: 32px;
}

.product-gallery-main {
    width: 100%;
    border-radius: 8px;
    display: block;
}

.product-gallery-thumbs {
    display: flex;
    gap: 8px;
    margin-top: 8px;
    flex-wrap: wrap;
}

.product-gallery-thumbs img {
    width: 72px;
    height: 72px;
    object-fit: cover;
    border-radius: 6px;
    border: 1px solid var(--border);
}

.product-gallery-placeholder {
    background: #eef2f7;
    border-radius: 8px;
    padding: 48px 0;
    text-align: center;
    color: #889;
}

.specs-table {
    width: 100%;
    border-collapse: collapse;
    margin: 16px 0;
}

.specs-table th,
.specs-table td {
    text-align: left;
    padding: 8px 0;
    border-bottom: 1px solid var(--border);
}

.specs-table th {
    color: #556;
    font-weight: 600;
    width: 45%;
}

/* Article */

.article-date {
    color: #778;
    font-size: 0.9rem;
}

.article-cover {
    width: 100%;
    border-radius: 8px;
    margin: 16px 0;
}

.article-content p {
    white-space: pre-line;
}

/* FAQ */

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

.faq-item {
    background: #fff;
    border-radius: 8px;
    padding: 16px 20px;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.06);
}

.faq-item h3 {
    margin-top: 0;
}

/* Contacts */

.contacts-info p {
    margin: 6px 0;
}

/* Lead form */

.lead-form-block {
    background: #fff;
    border-radius: 8px;
    padding: 24px;
    margin: 32px 0;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.08);
}

.lead-form-subtitle {
    color: #556;
    margin-top: -8px;
}

.lead-form .form-row {
    display: flex;
    flex-direction: column;
    gap: 4px;
    margin-bottom: 12px;
}

.lead-form label {
    font-size: 0.9rem;
    color: #445;
}

.lead-form input,
.lead-form textarea {
    padding: 10px;
    border: 1px solid var(--border);
    border-radius: 6px;
    font: inherit;
}

.lead-form-status {
    margin-top: 12px;
    font-weight: 600;
}

.lead-form-status.is-success {
    color: var(--success);
}

.lead-form-status.is-error {
    color: var(--error);
}

/* Footer */

.site-footer {
    background: var(--dark);
    color: #cbd5e1;
    padding: 24px 0;
    margin-top: 40px;
}

.footer-inner {
    display: flex;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 16px;
}

.footer-inner a {
    color: #cbd5e1;
}

.footer-links {
    font-size: 0.9rem;
}

/* Responsive */

@media (max-width: 720px) {
    .nav-toggle {
        display: inline-block;
    }

    .main-nav {
        display: none;
        flex-direction: column;
        width: 100%;
    }

    .main-nav.is-open {
        display: flex;
    }

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