:root {
    --dl-bg: #09090c;
    --dl-surface: #111117;
    --dl-surface-soft: rgba(18, 18, 24, 0.75);
    --dl-card: rgba(20, 20, 30, 0.86);
    --dl-border: rgba(255, 255, 255, 0.1);
    --dl-text: #f5f7fb;
    --dl-text-muted: #a5acbb;
    --dl-primary: #6366f1;
    --dl-primary-2: #8b5cf6;
    --dl-cyan: #06b6d4;
    --dl-success: #10b981;
    --dl-danger: #ef4444;
    --dl-warning: #f59e0b;
    --dl-gradient: linear-gradient(135deg, #6366f1 0%, #8b5cf6 48%, #06b6d4 100%);
}

html {
    scroll-behavior: smooth;
}

body.delarium-shell {
    margin: 0;
    min-height: 100vh;
    background:
        radial-gradient(circle at 15% 15%, rgba(99, 102, 241, 0.18), transparent 30%),
        radial-gradient(circle at 85% 20%, rgba(6, 182, 212, 0.12), transparent 24%),
        linear-gradient(180deg, #09090c 0%, #111117 100%);
    color: var(--dl-text);
    font-family: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

body.delarium-shell .text-gradient {
    background: var(--dl-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.site-header {
    position: sticky;
    top: 0;
    z-index: 1000;
    backdrop-filter: blur(18px);
    background: rgba(8, 8, 11, 0.78);
    border-bottom: 1px solid var(--dl-border);
}

.site-header__inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 1.5rem;
    min-height: 78px;
}

.site-logo {
    display: inline-flex;
    align-items: center;
    gap: 0.75rem;
    text-decoration: none;
    color: var(--dl-text);
    font-weight: 800;
    letter-spacing: -0.03em;
}

.site-logo__icon {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 44px;
    height: 44px;
    border-radius: 14px;
    background: rgba(99, 102, 241, 0.15);
    border: 1px solid rgba(99, 102, 241, 0.3);
    font-size: 1.45rem;
}

.site-logo__text {
    font-size: 1.4rem;
}

.site-logo__text span {
    color: var(--dl-primary);
}

.site-nav {
    display: flex;
    align-items: center;
    gap: 1.25rem;
    flex-wrap: wrap;
}

.site-nav__link {
    color: var(--dl-text-muted);
    text-decoration: none;
    font-weight: 600;
    transition: color 0.2s ease;
    position: relative;
}

.site-nav__link:hover,
.site-nav__link.is-current {
    color: var(--dl-text);
}

.site-nav__link.is-current::after,
.site-nav__link:hover::after {
    content: "";
    position: absolute;
    left: 0;
    bottom: -0.4rem;
    width: 100%;
    height: 2px;
    background: var(--dl-gradient);
    border-radius: 999px;
}

.breadcrumbs {
    display: flex;
    align-items: center;
    gap: 0.35rem;
    flex-wrap: wrap;
    margin-bottom: 1.5rem;
    color: var(--dl-text-muted);
    font-size: 0.9rem;
}

.breadcrumbs a {
    color: var(--dl-text-muted);
    text-decoration: none;
}

.breadcrumbs a:hover {
    color: var(--dl-primary);
}

.breadcrumbs__separator {
    opacity: 0.55;
}

.site-footer {
    margin-top: 5rem;
    padding: 4rem 0 2rem;
    border-top: 1px solid var(--dl-border);
    background: rgba(8, 8, 11, 0.76);
}

.footer-grid {
    display: grid;
    grid-template-columns: 1.8fr 1fr 1fr 1fr;
    gap: 2rem;
}

.footer-brand__text,
.footer-links li,
.footer-bottom,
.footer-bottom__muted {
    color: var(--dl-text-muted);
}

.footer-column h3 {
    margin-bottom: 1rem;
    font-size: 1rem;
}

.footer-links {
    list-style: none;
    margin: 0;
    padding: 0;
    display: grid;
    gap: 0.75rem;
}

.footer-links a,
.footer-links__muted {
    color: var(--dl-text-muted);
    text-decoration: none;
}

.footer-links a:hover {
    color: var(--dl-text);
}

.footer-bottom {
    margin-top: 2rem;
    padding-top: 1.25rem;
    border-top: 1px solid var(--dl-border);
    display: flex;
    justify-content: space-between;
    gap: 1rem;
    flex-wrap: wrap;
    font-size: 0.92rem;
}

@media (max-width: 991px) {
    .site-header__inner {
        min-height: auto;
        padding: 1rem 0;
        flex-direction: column;
        align-items: flex-start;
    }

    .footer-grid {
        grid-template-columns: 1fr 1fr;
    }
}

@media (max-width: 767px) {
    .site-nav {
        gap: 1rem;
    }

    .site-logo__text {
        font-size: 1.2rem;
    }

    .footer-grid {
        grid-template-columns: 1fr;
    }

    .footer-bottom {
        flex-direction: column;
    }
}