:root {
    color-scheme: dark;
    --bg: #050915;
    --surface: #0f162a;
    --surface-alt: #141c34;
    --text: #f7f9fc;
    --muted: #96a0c2;
    --accent: #7dd3fc;
    --border: rgba(255, 255, 255, 0.07);
    --shadow: 0 20px 45px rgba(5, 9, 21, 0.45);
    --radius: 20px;
    --container: min(1100px, 90vw);
    font-family: "Inter", "SF Pro Display", -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

*,
*::before,
*::after {
    box-sizing: border-box;
}

body {
    margin: 0;
    background-color: var(--bg);
    color: var(--text);
    font-size: 1rem;
    line-height: 1.6;
}

a {
    color: inherit;
    text-decoration: none;
}

.container {
    width: var(--container);
    margin: 0 auto;
}

.site-header {
    border-bottom: 1px solid var(--border);
    position: sticky;
    top: 0;
    background: rgba(5, 9, 21, 0.95);
    backdrop-filter: blur(12px);
    z-index: 10;
}

.site-header .container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 1rem 0;
}

.branding .logo {
    font-weight: 700;
    font-size: 1.25rem;
}

.branding .tagline {
    margin: 0.15rem 0 0;
    font-size: 0.85rem;
    color: var(--muted);
}

.main-nav a {
    font-weight: 500;
    font-size: 0.95rem;
    opacity: 0.85;
}

.hero {
    padding: 3rem 0 2rem;
}

.hero .eyebrow {
    text-transform: uppercase;
    letter-spacing: 0.15em;
    font-size: 0.75rem;
    color: var(--muted);
    margin-bottom: 0.8rem;
}

.hero h1 {
    font-size: clamp(2rem, 6vw, 3.2rem);
    line-height: 1.1;
    margin: 0 0 1rem;
}

.hero p {
    font-size: 1.1rem;
    color: var(--muted);
    max-width: 640px;
}

.articles-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 1.5rem;
    padding: 2rem 0 4rem;
}

.article-card {
    background: linear-gradient(135deg, var(--surface), var(--surface-alt));
    border-radius: var(--radius);
    padding: 1.5rem;
    border: 1px solid var(--border);
    box-shadow: var(--shadow);
    transition: transform 0.3s ease, border 0.3s ease;
}

.article-card:hover {
    transform: translateY(-6px);
    border-color: rgba(125, 211, 252, 0.4);
}

.article-card h2 {
    margin: 0.5rem 0 0.75rem;
    font-size: 1.25rem;
}

.article-card .article-date {
    margin: 0;
    color: var(--muted);
    font-size: 0.8rem;
}

.article-card .article-description {
    margin: 0 0 1rem;
    color: var(--muted);
}

.read-more {
    font-weight: 600;
    color: var(--accent);
}

.empty-state {
    color: var(--muted);
    text-align: center;
    grid-column: 1 / -1;
}

.single-article {
    padding: 3rem 0 4rem;
    display: flex;
    flex-direction: column;
    gap: 2rem;
}

.single-hero h1 {
    font-size: clamp(2.2rem, 6vw, 3rem);
    margin-bottom: 1rem;
}

.single-hero .intro {
    font-size: 1.1rem;
    color: var(--muted);
}

.slides-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
    gap: 1.25rem;
}

.slide-card {
    background: var(--surface);
    border-radius: var(--radius);
    padding: 1.5rem;
    border: 1px solid var(--border);
    box-shadow: var(--shadow);
}

.slide-card h2 {
    margin-top: 0;
    font-size: 1.15rem;
}

.slide-card p {
    color: var(--muted);
}

.slide-card ul {
    padding-left: 1.2rem;
    color: var(--muted);
}

.slide-card li + li {
    margin-top: 0.35rem;
}

.conclusion {
    background: var(--surface-alt);
    border-radius: var(--radius);
    padding: 2rem;
    border: 1px solid var(--border);
}

.conclusion h2 {
    margin-top: 0;
}

.rsya-slot {
    border: 1px dashed rgba(125, 211, 252, 0.4);
    border-radius: var(--radius);
    min-height: 120px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--muted);
    font-size: 0.85rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin: 1.5rem 0;
}

.site-footer {
    border-top: 1px solid var(--border);
    padding: 1.5rem 0;
    color: var(--muted);
    font-size: 0.9rem;
}

@media (max-width: 600px) {
    .site-header .container {
        flex-direction: column;
        align-items: flex-start;
        gap: 0.5rem;
    }

    .article-card {
        padding: 1.25rem;
    }

    .slide-card {
        padding: 1.25rem;
    }
}