:root {
    --bg: #050505;
    --surface: #0f0f0f;
    --accent: #E31212;
    /* Фирменный красный на тёмном фоне даёт контраст 4.25:1 — ниже нормы WCAG AA
       для текста, поэтому у текстовых элементов свой, светлее, оттенок (6.4:1). */
    --accent-text: #FF5252;
    --accent-glow: rgba(227, 18, 18, 0.3);
    --text-main: #FFFFFF;
    --text-dim: #A1A1A1;
    --border: rgba(255, 255, 255, 0.06);
    --font-head: 'Sora', sans-serif;
    --font-body: 'Inter', sans-serif;
}

* { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; }

:focus-visible {
    outline: 3px solid var(--accent-text);
    outline-offset: 3px;
    border-radius: 4px;
}
body {
    background: var(--bg);
    color: var(--text-main);
    font-family: var(--font-body);
    line-height: 1.7;
    -webkit-font-smoothing: antialiased;
}

.container { max-width: 1000px; margin: 0 auto; padding: 0 24px; }

/* Typography */
h1, h2, h3 { font-family: var(--font-head); letter-spacing: -0.02em; line-height: 1.1; }
p { font-weight: 300; }
.gradient-text {
    background: linear-gradient(135deg, #fff 0%, #888 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 18px 36px;
    border-radius: 12px;
    font-family: var(--font-head);
    font-weight: 700;
    font-size: 1rem;
    text-decoration: none;
    transition: all 0.4s cubic-bezier(0.165, 0.84, 0.44, 1);
    border: none;
    cursor: pointer;
}
.btn-primary { background: var(--accent); color: white; box-shadow: 0 8px 24px var(--accent-glow); }
/* при наведении темнее, а не светлее: белый текст на #ff1a1a даёт лишь 3.9:1 */
.btn-primary:hover { transform: translateY(-3px); box-shadow: 0 12px 32px var(--accent-glow); background: #C50F0F; }

.btn-secondary { background: var(--surface); color: white; border: 1px solid var(--border); }
.btn-secondary:hover { background: #1a1a1a; border-color: #444; }

/* Header */
header { padding: 30px 0; border-bottom: 1px solid var(--border); position: sticky; top: 0; background: rgba(5,5,5,0.8); backdrop-filter: blur(20px); z-index: 100; }
.nav-inner { display: flex; justify-content: space-between; align-items: center; }
.logo { display: inline-flex; align-items: center; min-height: 44px; font-family: var(--font-head); font-weight: 800; font-size: 1.2rem; text-decoration: none; color: white; }
.logo span { color: var(--accent); }

/* Hero Section */
/* NB: горизонтальный padding задаёт .container — здесь только longhand,
   иначе shorthand обнуляет боковые отступы и текст липнет к краям экрана. */
.hero { padding-top: 100px; padding-bottom: 80px; text-align: center; }
.badge {
    display: inline-block;
    padding: 6px 16px;
    background: rgba(255,255,255,0.05);
    border: 1px solid var(--border);
    border-radius: 100px;
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    color: var(--accent-text);
    margin-bottom: 24px;
}
.hero h1 { font-size: clamp(2.5rem, 8vw, 4.5rem); margin-bottom: 30px; }
.hero p { font-size: 1.25rem; color: var(--text-dim); max-width: 700px; margin: 0 auto 40px; }

/* Pain Section */
.pain-section { padding: 80px 0; background: var(--surface); border-top: 1px solid var(--border); border-bottom: 1px solid var(--border); }
.pain-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 60px; align-items: center; }
.pain-content h2 { font-size: 2.5rem; margin-bottom: 24px; }
.pain-content p { color: var(--text-dim); margin-bottom: 20px; }

/* Features */
.features { padding-top: 100px; padding-bottom: 100px; }
.section-head { text-align: center; margin-bottom: 60px; }
.section-head h2 { font-size: 3rem; margin-bottom: 20px; }
.f-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 30px; }
.f-item { padding: 40px; background: var(--surface); border: 1px solid var(--border); border-radius: 24px; transition: 0.3s; }
.f-item:hover { border-color: var(--accent); transform: translateY(-5px); }
.f-icon { font-size: 2.5rem; margin-bottom: 20px; display: block; }
.f-item h3 { margin-bottom: 15px; font-size: 1.3rem; }
.f-item p { color: var(--text-dim); font-size: 0.95rem; }

/* Comparison Table */
.comparison { padding-top: 80px; padding-bottom: 80px; }
.table-wrapper { overflow-x: auto; -webkit-overflow-scrolling: touch; }
.comp-table { width: 100%; border-collapse: collapse; background: var(--surface); border-radius: 24px; overflow: hidden; border: 1px solid var(--border); }
.comp-table th, .comp-table td { padding: 24px; text-align: left; border-bottom: 1px solid var(--border); }
.comp-table th { background: rgba(255,255,255,0.02); font-family: var(--font-head); color: var(--accent-text); }
.check { color: #00ff88; font-weight: bold; }
.cross { color: #ff4d4d; font-weight: bold; }

/* Pricing */
.pricing { padding: 100px 0; background: linear-gradient(to bottom, #050505, #0f0f0f); }
.p-cards { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; margin-top: 50px; }
.p-card { padding: 48px 32px; background: var(--bg); border: 1px solid var(--border); border-radius: 32px; position: relative; transition: 0.3s; }
.p-card.featured { border: 2px solid var(--accent); background: #0a0a0a; transform: scale(1.05); }
.p-badge { position: absolute; top: -15px; left: 50%; transform: translateX(-50%); background: var(--accent); color: white; padding: 4px 16px; border-radius: 20px; font-size: 0.7rem; font-weight: 800; text-transform: uppercase; }
.p-card h3 { font-size: 1.2rem; color: var(--text-dim); margin-bottom: 10px; }
.p-price { font-size: 3.5rem; font-weight: 800; margin-bottom: 30px; font-family: var(--font-head); line-height: 1.1; }
.p-price span { display: block; margin-top: 8px; font-size: 1rem; line-height: 1.4; color: var(--text-dim); }
.p-list { list-style: none; margin-bottom: 40px; }
.p-list li { margin-bottom: 15px; color: var(--text-dim); display: flex; align-items: center; font-size: 0.9rem; }
.p-list li::before { content: "→"; color: var(--accent-text); margin-right: 12px; font-weight: bold; }

/* FAQ */
.faq { padding-top: 100px; padding-bottom: 100px; border-top: 1px solid var(--border); }
.faq-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 40px; }
.faq-item h3 { margin-bottom: 12px; color: var(--accent-text); font-size: 1rem; }
.faq-item p { color: var(--text-dim); font-size: 0.9rem; }

/* CTA Footer */
.final-cta { padding: 120px 0; text-align: center; background: var(--accent); color: white; }
.final-cta h2 { font-size: 3.5rem; margin-bottom: 30px; }
.final-cta p { font-size: 1.5rem; margin-bottom: 40px; }

footer { padding: 50px 0; text-align: center; border-top: 1px solid var(--border); color: var(--text-dim); font-size: 0.8rem; }
footer a { display: inline-block; padding: 6px 4px; color: var(--accent-text); text-decoration: none; }
footer a:hover { text-decoration: underline; }

/* Modal */
.modal-overlay { position: fixed; inset: 0; background: rgba(0,0,0,0.95); z-index: 1000; display: none; align-items: center; justify-content: center; padding: 20px; }
.modal { background: var(--surface); padding: 50px; border-radius: 32px; max-width: 500px; width: 100%; border: 1px solid var(--accent); text-align: center; }

[data-reveal] { opacity: 0; transform: translateY(30px); transition: 0.8s cubic-bezier(0.165, 0.84, 0.44, 1); }
[data-reveal].active { opacity: 1; transform: translateY(0); }

/* Mobile Styles */
@media (max-width: 768px) {
    .container { padding: 0 16px; }

    header { padding: 16px 0; }
    .logo { font-size: 1rem; }

    .hero { padding-top: 60px; padding-bottom: 50px; }
    .hero h1 { font-size: 2rem; margin-bottom: 20px; }
    .hero h1 br { display: none; }
    .hero p { font-size: 1rem; margin-bottom: 30px; }
    .btn { padding: 16px 28px; font-size: 0.9rem; width: 100%; }

    .pain-section { padding: 50px 0; }
    .pain-grid { grid-template-columns: 1fr; gap: 30px; text-align: center; }
    .pain-content h2 { font-size: 1.8rem; }

    .features { padding-top: 60px; padding-bottom: 60px; }
    .section-head h2 { font-size: 2rem; }
    .f-grid { grid-template-columns: 1fr; gap: 20px; }
    .f-item { padding: 30px 24px; }

    .comparison { padding-top: 50px; padding-bottom: 50px; }
    .comp-table th, .comp-table td { padding: 12px 6px; font-size: 0.78rem; }

    .pricing { padding: 60px 0; }
    .p-cards { grid-template-columns: 1fr; gap: 24px; }
    .p-card.featured { transform: scale(1); }
    .p-price { font-size: 2.8rem; }

    .faq { padding-top: 60px; padding-bottom: 60px; }
    .faq-grid { grid-template-columns: 1fr; gap: 30px; }

    .final-cta { padding: 80px 0; }
    .final-cta h2 { font-size: 2.2rem; }
    .final-cta p { font-size: 1.1rem; }
}

/* ===========================================
   Контентные страницы: кластеры, блог, статьи
   =========================================== */

.nav-links { display: flex; align-items: center; gap: 24px; }
.nav-links a.nav-link { display: inline-flex; align-items: center; min-height: 44px; color: var(--text-dim); text-decoration: none; font-size: 0.9rem; font-weight: 500; }
.nav-links a.nav-link:hover { color: var(--text-main); }

.breadcrumbs { padding-top: 24px; font-size: 0.8rem; color: var(--text-dim); }
.breadcrumbs a { display: inline-block; padding: 4px 2px; color: var(--text-dim); text-decoration: none; }
.breadcrumbs a:hover { color: var(--accent-text); }
.breadcrumbs span { margin: 0 8px; opacity: 0.5; }

.page-hero { padding-top: 60px; padding-bottom: 60px; }
.page-hero h1 { font-size: clamp(2rem, 6vw, 3.5rem); margin-bottom: 24px; }
.page-hero .lead { font-size: 1.15rem; color: var(--text-dim); max-width: 720px; margin-bottom: 32px; }

/* Текст статей и кластерных разделов */
.prose { max-width: 760px; }
.prose h2 { font-size: 2rem; margin: 56px 0 20px; }
.prose h3 { font-size: 1.25rem; margin: 36px 0 14px; }
.prose p { color: var(--text-dim); margin-bottom: 18px; }
.prose ul, .prose ol { color: var(--text-dim); margin: 0 0 22px 22px; }
.prose li { margin-bottom: 10px; font-weight: 300; }
.prose strong { color: var(--text-main); font-weight: 500; }
.prose a { color: var(--accent-text); text-decoration: none; }
.prose a:hover { text-decoration: underline; }
.prose blockquote { border-left: 3px solid var(--accent); padding: 4px 0 4px 20px; margin: 0 0 24px; color: var(--text-dim); font-style: italic; }

.callout { background: var(--surface); border: 1px solid var(--border); border-radius: 24px; padding: 32px; margin: 40px 0; }
.callout h3 { margin-bottom: 12px; }
.callout p { color: var(--text-dim); margin-bottom: 20px; }

.article-meta { color: var(--text-dim); font-size: 0.85rem; margin-bottom: 32px; }

/* Список статей блога */
.post-list { display: grid; gap: 20px; margin-bottom: 40px; }
.post-card { display: block; padding: 32px; background: var(--surface); border: 1px solid var(--border); border-radius: 24px; text-decoration: none; color: inherit; transition: 0.3s; }
.post-card:hover { border-color: var(--accent); transform: translateY(-4px); }
.post-card h2 { font-size: 1.4rem; margin-bottom: 12px; }
.post-card p { color: var(--text-dim); font-size: 0.95rem; }
.post-card .post-date { display: block; color: var(--text-dim); font-size: 0.8rem; margin-bottom: 12px; }

/* Перелинковка кластеров */
.cluster-links { display: grid; grid-template-columns: repeat(2, 1fr); gap: 16px; margin: 40px 0 0; }
.cluster-links a { padding: 20px 24px; background: var(--surface); border: 1px solid var(--border); border-radius: 16px; text-decoration: none; color: var(--text-main); font-family: var(--font-head); font-weight: 600; font-size: 0.95rem; transition: 0.3s; }
.cluster-links a:hover { border-color: var(--accent); }

@media (max-width: 768px) {
    .nav-links { gap: 14px; }
    .nav-links a.nav-link { font-size: 0.8rem; }
    .nav-inner .btn { width: auto; padding: 12px 18px; font-size: 0.8rem; }
    /* хлебные крошки и подвал: тап-таргет 44px без визуального разъезда */
    .breadcrumbs { padding-top: 8px; }
    .breadcrumbs a { display: inline-block; padding: 14px 4px; }
    footer a { padding: 14px 8px; }
    .page-hero { padding-top: 32px; padding-bottom: 40px; }
    .page-hero h1 { font-size: 1.9rem; }
    .page-hero .lead { font-size: 1rem; }
    .prose h2 { font-size: 1.6rem; margin: 40px 0 16px; }
    .callout { padding: 24px; }
    .cluster-links { grid-template-columns: 1fr; }
}

.modal-close {
    background: none;
    border: none;
    color: var(--text-dim);
    font-size: 1.1rem;
    line-height: 1;
    padding: 12px 16px;
    cursor: pointer;
}
.modal-close:hover { color: var(--text-main); }