/* Shared light CSS for /buklety and /guides SSR pages */
.seo {
    --seo-bg: #f7f9fc;
    --seo-ink: #0f172a;
    --seo-muted: #64748b;
    --seo-blue: #2563eb;
    --seo-line: #e2e8f0;
    margin: 0;
    min-height: 100vh;
    font-family: Manrope, system-ui, sans-serif;
    color: var(--seo-ink);
    background:
        radial-gradient(900px 420px at 88% -8%, rgba(37, 99, 235, 0.1), transparent 55%),
        var(--seo-bg);
}

.seo-skip {
    position: absolute;
    left: -9999px;
    top: 0;
    z-index: 100;
    background: var(--seo-blue);
    color: #fff;
    padding: 0.75rem 1rem;
}

.seo-skip:focus {
    left: 1rem;
    top: 1rem;
}

.seo-wrap {
    width: min(900px, calc(100% - 2rem));
    margin: 0 auto;
}

.seo-header {
    position: sticky;
    top: 0;
    z-index: 40;
    backdrop-filter: blur(14px);
    -webkit-backdrop-filter: blur(14px);
    background: color-mix(in srgb, var(--seo-bg) 82%, transparent);
    border-bottom: 1px solid color-mix(in srgb, var(--seo-line) 80%, transparent);
}

.seo-header__inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 0.75rem;
    min-height: 56px;
    padding-block: 0.45rem;
    box-sizing: border-box;
}

.seo-brand {
    display: inline-flex;
    align-items: center;
    gap: 0.6rem;
    font-weight: 800;
    letter-spacing: -0.02em;
    color: var(--seo-ink);
    text-decoration: none;
    flex-shrink: 0;
}

.seo-brand__mark {
    width: 28px;
    height: 28px;
    border-radius: 9px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
    flex-shrink: 0;
    box-shadow: 0 6px 16px rgba(37, 99, 235, 0.28);
}

.seo-brand__mark svg {
    display: block;
    width: 28px;
    height: 28px;
}

.seo-brand__name {
    font-size: 1.125rem;
}

.seo-header__actions {
    display: flex;
    align-items: center;
    gap: 0.4rem;
    flex-shrink: 0;
}

.seo-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    box-sizing: border-box;
    min-height: 40px;
    height: auto;
    padding: 0.5rem 1rem;
    border-radius: 999px;
    font: inherit;
    font-weight: 700;
    font-size: 0.875rem;
    line-height: 1;
    text-decoration: none;
    border: 1px solid transparent;
    white-space: nowrap;
    transition: background 0.15s ease, border-color 0.15s ease, color 0.15s ease;
}

.seo-btn--sm {
    min-height: 34px;
    height: 34px;
    padding: 0 0.85rem;
    font-size: 0.8125rem;
}

.seo-btn--primary {
    background: var(--seo-blue);
    color: #fff;
}

.seo-btn--primary:hover {
    background: #1d4ed8;
}

.seo-btn--outline {
    background: #fff;
    border-color: var(--seo-line);
    color: var(--seo-ink);
}

.seo-btn--outline:hover {
    border-color: color-mix(in srgb, var(--seo-blue) 35%, var(--seo-line));
}

.seo-btn--ghost {
    color: var(--seo-muted);
    padding-inline: 0.55rem;
}

.seo-btn--ghost:hover {
    color: var(--seo-ink);
}

.seo-main {
    padding: 1.35rem 0 3rem;
}

.seo-crumbs {
    display: flex;
    flex-wrap: wrap;
    gap: 0.4rem;
    margin-bottom: 1rem;
    font-size: 0.85rem;
    color: var(--seo-muted);
}

.seo-crumbs a {
    color: var(--seo-blue);
    text-decoration: none;
}

.seo-card {
    background: #fff;
    border: 1px solid var(--seo-line);
    border-radius: 16px;
    padding: 1.25rem 1.35rem 1.4rem;
    box-shadow: 0 10px 28px rgba(15, 23, 42, 0.04);
}

.seo-card h1 {
    margin: 0 0 0.9rem;
    font-size: clamp(1.4rem, 3.2vw, 1.9rem);
    letter-spacing: -0.03em;
    line-height: 1.2;
}

.seo-card p,
.seo-card .seo-intro p {
    margin: 0 0 0.8rem;
    color: #334155;
    line-height: 1.6;
}

.seo-cta {
    display: flex;
    flex-wrap: wrap;
    gap: 0.6rem;
    margin-top: 1rem;
}

.seo-list {
    list-style: none;
    margin: 1rem 0 0;
    padding: 0;
    display: grid;
    gap: 0.5rem;
}

.seo-list a {
    display: block;
    padding: 0.7rem 0.9rem;
    border-radius: 12px;
    background: #fff;
    border: 1px solid var(--seo-line);
    color: var(--seo-blue);
    text-decoration: none;
    font-weight: 650;
}

.seo-list a:hover {
    border-color: color-mix(in srgb, var(--seo-blue) 35%, var(--seo-line));
}

.seo-card + .seo-list,
.seo-main > h2,
.seo-faq {
    margin-top: 1.5rem;
}

.seo-main > .seo-list {
    margin-top: 1.25rem;
}

.seo-faq h2,
.seo-main h2 {
    margin: 0 0 0.65rem;
    font-size: 1.1rem;
}

.seo-faq details {
    background: #fff;
    border: 1px solid var(--seo-line);
    border-radius: 12px;
    padding: 0.8rem 1rem;
    margin-bottom: 0.5rem;
}

.seo-faq summary {
    cursor: pointer;
    font-weight: 700;
}

.seo-faq p {
    margin: 0.5rem 0 0;
    color: var(--seo-muted);
    line-height: 1.55;
}

.seo-related {
    margin-top: 2rem;
    padding: 1.25rem 1.3rem 1.4rem;
    border-radius: 16px;
    border: 1px solid var(--seo-line);
    background:
        linear-gradient(165deg, rgba(37, 99, 235, 0.04), transparent 42%),
        #fff;
    box-shadow: 0 10px 28px rgba(15, 23, 42, 0.04);
}

.seo-related__head {
    margin-bottom: 1.1rem;
}

.seo-related__title {
    margin: 0 0 0.35rem;
    font-size: 1.12rem;
    font-weight: 800;
    letter-spacing: -0.03em;
}

.seo-related__lead {
    margin: 0;
    font-size: 0.9rem;
    color: var(--seo-muted);
    line-height: 1.45;
}

.seo-related__group + .seo-related__group {
    margin-top: 1.05rem;
    padding-top: 1.05rem;
    border-top: 1px solid color-mix(in srgb, var(--seo-line) 85%, transparent);
}

.seo-related__group-label {
    margin: 0 0 0.55rem;
    font-size: 0.72rem;
    font-weight: 750;
    letter-spacing: 0.06em;
    text-transform: uppercase;
    color: var(--seo-muted);
}

.seo-related__grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(148px, 1fr));
    gap: 0.55rem;
}

.seo-related__card {
    display: flex;
    flex-direction: column;
    gap: 0.2rem;
    min-height: 68px;
    padding: 0.75rem 0.85rem;
    border-radius: 12px;
    border: 1px solid var(--seo-line);
    background: var(--seo-bg);
    text-decoration: none;
    color: inherit;
    transition: border-color 0.15s ease, transform 0.15s ease, background 0.15s ease;
}

.seo-related__card:hover {
    border-color: color-mix(in srgb, var(--seo-blue) 40%, var(--seo-line));
    background: #fff;
    transform: translateY(-1px);
}

.seo-related__card-title {
    font-size: 0.92rem;
    font-weight: 750;
    letter-spacing: -0.02em;
    color: var(--seo-ink);
}

.seo-related__card:hover .seo-related__card-title {
    color: var(--seo-blue);
}

.seo-related__card-hint {
    font-size: 0.75rem;
    line-height: 1.35;
    color: var(--seo-muted);
}

.seo-empty {
    color: var(--seo-muted);
}

.seo-footer {
    border-top: 1px solid var(--seo-line);
    padding: 1.4rem 0 2rem;
    color: var(--seo-muted);
    font-size: 0.85rem;
}

.seo-footer .seo-wrap {
    display: flex;
    flex-wrap: wrap;
    gap: 0.75rem 1.2rem;
    justify-content: space-between;
}

.seo-footer__links {
    display: flex;
    flex-wrap: wrap;
    gap: 0.75rem;
}

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

.seo-footer a:hover {
    color: var(--seo-blue);
}