:root {
    color-scheme: dark;
    --bg: #080d18;
    --surface: #111827;
    --surface-2: #172033;
    --text: #eef2ff;
    --muted: #9aa5b8;
    --line: rgba(148, 163, 184, 0.2);
    --accent: #818cf8;
    --accent-2: #22d3ee;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
    margin: 0;
    min-height: 100vh;
    color: var(--text);
    background:
        radial-gradient(circle at 12% 0%, rgba(99, 102, 241, 0.18), transparent 34rem),
        radial-gradient(circle at 90% 20%, rgba(34, 211, 238, 0.12), transparent 32rem),
        var(--bg);
    font-family: Inter, Poppins, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
    line-height: 1.65;
}

a { color: var(--accent-2); }
a:hover { color: #67e8f9; }

.seo-nav,
.seo-shell,
.seo-footer {
    width: min(100% - 32px, 960px);
    margin-inline: auto;
}

.seo-nav {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
    min-height: 72px;
    border-bottom: 1px solid var(--line);
}

.seo-brand {
    color: var(--text);
    font-weight: 800;
    text-decoration: none;
}

.seo-nav-links {
    display: flex;
    flex-wrap: wrap;
    justify-content: flex-end;
    gap: 14px;
    font-size: 0.84rem;
}

.seo-nav-links a { color: var(--muted); text-decoration: none; }
.seo-nav-links a:hover { color: var(--text); }

.seo-shell { padding: clamp(42px, 8vw, 86px) 0 56px; }

.seo-breadcrumbs {
    margin: 0 0 20px;
    color: var(--muted);
    font-size: 0.8rem;
}

.seo-eyebrow {
    margin: 0 0 8px;
    color: var(--accent);
    font-size: 0.76rem;
    font-weight: 800;
    letter-spacing: 0.12em;
    text-transform: uppercase;
}

h1 {
    max-width: 820px;
    margin: 0;
    font-size: clamp(2rem, 7vw, 4.2rem);
    line-height: 1.06;
    letter-spacing: -0.045em;
}

.seo-lead {
    max-width: 760px;
    margin: 20px 0 0;
    color: var(--muted);
    font-size: clamp(1rem, 2.5vw, 1.15rem);
}

.seo-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
    margin: 28px 0 0;
}

.seo-button {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-height: 46px;
    padding: 10px 18px;
    border: 1px solid var(--line);
    border-radius: 12px;
    color: var(--text);
    background: var(--surface);
    font-size: 0.88rem;
    font-weight: 700;
    text-decoration: none;
}

.seo-button.primary {
    border-color: transparent;
    background: linear-gradient(135deg, #6366f1, #0891b2);
}

.seo-stats {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(145px, 1fr));
    gap: 12px;
    margin: 36px 0;
}

.seo-stat,
.seo-section,
.seo-card {
    border: 1px solid var(--line);
    background: var(--surface);
    background: color-mix(in srgb, var(--surface) 88%, transparent);
    box-shadow: 0 18px 50px rgba(0, 0, 0, 0.15);
}

.seo-stat { padding: 18px; border-radius: 16px; }
.seo-stat strong { display: block; font-size: 1.45rem; line-height: 1.2; }
.seo-stat span { color: var(--muted); font-size: 0.76rem; }

.seo-section {
    margin: 18px 0;
    padding: clamp(20px, 5vw, 30px);
    border-radius: 20px;
}

.seo-section h2 { margin: 0 0 14px; font-size: 1.15rem; }
.seo-section p:last-child { margin-bottom: 0; }

.seo-detail-list {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 12px 22px;
    margin: 0;
}

.seo-detail-list div { min-width: 0; }
.seo-detail-list dt { color: var(--muted); font-size: 0.74rem; text-transform: uppercase; letter-spacing: 0.06em; }
.seo-detail-list dd { margin: 3px 0 0; overflow-wrap: anywhere; }

.seo-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(235px, 1fr));
    gap: 14px;
    margin-top: 30px;
}

.seo-card {
    display: block;
    min-height: 132px;
    padding: 20px;
    border-radius: 16px;
    color: var(--text);
    text-decoration: none;
}

.seo-card:hover { border-color: var(--accent); transform: translateY(-2px); }
.seo-card strong { display: block; line-height: 1.35; }
.seo-card span { display: block; margin-top: 7px; color: var(--muted); font-size: 0.8rem; }

.seo-list {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    margin: 0;
    padding: 0;
    list-style: none;
}

.seo-list li {
    padding: 7px 10px;
    border: 1px solid var(--line);
    border-radius: 999px;
    color: var(--muted);
    background: var(--surface-2);
    font-size: 0.78rem;
}

.seo-footer {
    padding: 24px 0 40px;
    border-top: 1px solid var(--line);
    color: var(--muted);
    font-size: 0.76rem;
}

@media (prefers-color-scheme: light) {
    :root {
        color-scheme: light;
        --bg: #f7f8fc;
        --surface: #fff;
        --surface-2: #f1f4f9;
        --text: #172033;
        --muted: #667085;
        --line: rgba(71, 84, 103, 0.17);
        --accent: #4f46e5;
        --accent-2: #087e9b;
    }
}

@media (max-width: 620px) {
    .seo-nav { align-items: flex-start; padding: 16px 0; }
    .seo-nav-links { max-width: 190px; gap: 8px 12px; }
    .seo-shell { padding-top: 42px; }
}