/* /assets/seo.css */
:root {
    --bg: #ffffff;
    --text: #111827;
    --muted: #6b7280;
    --line: #e5e7eb;
    --brand: #0f766e;
    --brand2: #115e59;
    --card: #f9fafb;
    --max: 980px;
    --radius: 14px;
}

* {
    box-sizing: border-box;
}

html,
body {
    margin: 0;
    padding: 0;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, "Apple SD Gothic Neo", "Malgun Gothic",
        "Noto Sans KR", "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
    background: var(--bg);
    color: var(--text);
    line-height: 1.7;
}

a {
    color: var(--brand);
    text-decoration: none;
}

a:hover {
    text-decoration: underline;
}

.container {
    width: 100%;
    max-width: var(--max);
    margin: 0 auto;
    padding: 0 18px;
}

.skip {
    position: absolute;
    left: -9999px;
    top: auto;
    width: 1px;
    height: 1px;
    overflow: hidden;
}

.skip:focus {
    left: 18px;
    top: 18px;
    width: auto;
    height: auto;
    padding: 10px 12px;
    border-radius: 10px;
    background: #111827;
    color: #fff;
    z-index: 9999;
}

.topbar {
    border-bottom: 1px solid var(--line);
    background: #fff;
}

.brand {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 14px 0;
    gap: 12px;
}

.brand h1 {
    margin: 0;
    font-size: 18px;
    letter-spacing: -0.2px;
}

.badge {
    font-size: 12px;
    border: 1px solid var(--line);
    padding: 6px 10px;
    border-radius: 999px;
    color: var(--muted);
}

.nav {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    padding: 0 0 14px 0;
}

.nav a {
    display: inline-block;
    padding: 8px 10px;
    border: 1px solid var(--line);
    border-radius: 999px;
    background: #fff;
    font-size: 13px;
}

.nav a[aria-current="page"] {
    border-color: var(--brand);
    background: #ecfdf5;
    color: var(--brand2);
    font-weight: 600;
}

.hero {
    padding: 26px 0 18px 0;
}

.hero h2 {
    margin: 0 0 10px 0;
    font-size: 28px;
    letter-spacing: -0.6px;
}

.hero p {
    margin: 0;
    color: var(--muted);
}

.grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 14px;
    padding: 10px 0 20px 0;
}

@media (min-width: 860px) {
    .grid {
        grid-template-columns: 2fr 1fr;
    }
}

.card {
    border: 1px solid var(--line);
    background: var(--card);
    border-radius: var(--radius);
    padding: 16px;
}

.card h3 {
    margin: 0 0 10px 0;
    font-size: 18px;
    letter-spacing: -0.2px;
}

.card p {
    margin: 0 0 10px 0;
    color: #111827;
}

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

.list {
    margin: 10px 0 0 0;
    padding: 0 0 0 18px;
    color: #111827;
}

.list li {
    margin: 6px 0;
}

.kws {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    margin-top: 10px;
}

.kw {
    font-size: 12px;
    padding: 6px 10px;
    border-radius: 999px;
    border: 1px solid var(--line);
    background: #fff;
    color: #374151;
}

.cta {
    display: flex;
    flex-direction: column;
    gap: 10px;
    margin-top: 10px;
}

.btn {
    display: inline-flex;
    justify-content: center;
    align-items: center;
    padding: 12px 12px;
    border-radius: 12px;
    border: 1px solid var(--brand);
    background: var(--brand);
    color: #fff;
    font-weight: 700;
    letter-spacing: -0.2px;
}

.btn:hover {
    background: var(--brand2);
    border-color: var(--brand2);
    text-decoration: none;
}

.btn.secondary {
    background: #fff;
    color: var(--brand2);
    border-color: var(--line);
}

.btn.secondary:hover {
    border-color: var(--brand);
    background: #ecfdf5;
}

.footer {
    border-top: 1px solid var(--line);
    padding: 18px 0;
    color: var(--muted);
    font-size: 13px;
}

.small {
    font-size: 12px;
    color: var(--muted);
}

hr.sep {
    border: none;
    border-top: 1px solid var(--line);
    margin: 14px 0;
}

.table {
    width: 100%;
    border-collapse: collapse;
    background: #fff;
    border: 1px solid var(--line);
    border-radius: 12px;
    overflow: hidden;
}

.table th,
.table td {
    padding: 10px 12px;
    border-bottom: 1px solid var(--line);
    text-align: left;
    font-size: 14px;
}

.table th {
    background: #f3f4f6;
    font-weight: 700;
    white-space: nowrap;
}

.table tr:last-child td {
    border-bottom: none;
}