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

body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
    background-color: #0b0f19;
    color: #f1f5f9;
    line-height: 1.6;
}

.container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

header {
    background-color: #111827;
    padding: 25px 0;
    border-bottom: 1px solid #1e293b;
    text-align: center;
}

header .logo {
    font-size: 26px;
    font-weight: 800;
    color: #fff;
    text-decoration: none;
    letter-spacing: 1px;
}

header .logo i {
    color: #38bdf8;
    margin-right: 8px;
}

header .logo span {
    color: #38bdf8;
}

header .subtitle {
    color: #94a3b8;
    font-size: 14px;
    margin-top: 5px;
}

.hero-section {
    background: radial-gradient(circle at top, #1e293b 0%, #0b0f19 100%);
    padding: 60px 0;
    text-align: center;
    border-bottom: 1px solid #1e293b;
}

.hero-section h1 {
    font-size: 32px;
    color: #fff;
    margin-bottom: 15px;
}

.hero-section h1 i {
    color: #38bdf8;
}

.hero-section .hero-desc {
    max-width: 800px;
    margin: 0 auto;
    color: #cbd5e1;
    font-size: 16px;
}

.section-title {
    text-align: center;
    margin: 50px 0 10px 0;
    font-size: 26px;
    color: #fff;
}

.section-title i {
    color: #38bdf8;
    margin-right: 10px;
}

.section-subtitle {
    text-align: center;
    color: #94a3b8;
    margin-bottom: 40px;
    font-size: 15px;
}

/* Стили блока характеристик */
.metrics-section {
    background-color: #0f172a;
    border: 1px solid #1e293b;
    border-radius: 16px;
    padding: 40px 25px;
    margin: 40px 0;
}

.metrics-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 25px;
    margin-top: 30px;
}

.metric-card {
    background-color: #111827;
    border: 1px solid #1e293b;
    border-radius: 12px;
    padding: 30px 20px;
    text-align: center;
    transition: border-color 0.2s;
}

.metric-card:hover {
    border-color: #334155;
}

.metric-num {
    font-size: 42px;
    font-weight: 800;
    color: #38bdf8;
    display: block;
    margin-bottom: 10px;
    text-shadow: 0 0 20px rgba(56, 189, 248, 0.2);
}

.metric-card h4 {
    font-size: 18px;
    color: #fff;
    margin-bottom: 12px;
}

.metric-card p {
    color: #94a3b8;
    font-size: 13.5px;
    line-height: 1.5;
}

/* Сетка карточек */
.catalog-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 25px;
}

.card {
    background-color: #111827;
    border: 1px solid #1e293b;
    border-radius: 12px;
    padding: 30px;
}

.card.featured {
    background: linear-gradient(145deg, #111827 0%, #1e1b4b 100%);
    border: 1px solid #4f46e5;
}

.card h3 {
    font-size: 20px;
    color: #fff;
    margin-bottom: 15px;
    display: flex;
    align-items: center;
    gap: 10px;
}

.card h3 i {
    color: #38bdf8;
    font-size: 18px;
}

.card-desc {
    color: #94a3b8;
    font-size: 14px;
    margin-bottom: 20px;
}

.features-list {
    list-style: none;
    margin-bottom: 25px;
}

.features-list li {
    position: relative;
    padding-left: 20px;
    color: #cbd5e1;
    font-size: 14px;
    margin-bottom: 8px;
}

.features-list li::before {
    content: "✓";
    position: absolute;
    left: 0;
    color: #38bdf8;
    font-weight: bold;
}

.card-buttons {
    display: flex;
    gap: 10px;
}

.btn {
    display: block;
    text-align: center;
    padding: 12px 20px;
    border-radius: 8px;
    font-size: 14px;
    font-weight: 600;
    text-decoration: none;
    transition: opacity 0.2s;
    flex: 1;
}

.btn i {
    margin-right: 6px;
}

.btn:hover {
    opacity: 0.9;
}

.btn-primary {
    background-color: #38bdf8;
    color: #0f172a;
}

.btn-secondary {
    background-color: #1e293b;
    color: #cbd5e1;
    border: 1px solid #334155;
}

.btn-large {
    display: inline-block;
    padding: 15px 40px;
    font-size: 16px;
    width: auto;
}

/* SEO Текст */
.seo-text-block {
    margin: 60px 0;
    padding: 35px;
    background-color: #0f172a;
    border: 1px solid #1e293b;
    border-radius: 12px;
}

.seo-text-block h2 {
    font-size: 22px;
    color: #fff;
    margin-bottom: 15px;
}

.seo-text-block h3 {
    font-size: 18px;
    color: #38bdf8;
    margin: 20px 0 10px 0;
}

.seo-text-block p {
    color: #94a3b8;
    font-size: 15px;
    margin-bottom: 15px;
}

.seo-text-block ul {
    list-style: none;
    margin-bottom: 15px;
    color: #94a3b8;
}

.seo-text-block ul li {
    margin-bottom: 12px;
    font-size: 14px;
}

footer {
    background-color: #090d16;
    padding: 20px 0;
    text-align: center;
    border-top: 1px solid #1e293b;
    color: #64748b;
    font-size: 13px;
}

/* Адаптивность для экранов ПК */
@media (min-width: 768px) {
    .metrics-grid {
        grid-template-columns: repeat(3, 1fr);
    }
    .catalog-grid {
        grid-template-columns: repeat(3, 1fr);
        gap: 20px;
    }
}