:root {
    --primary: #FF5A36;
    --background: #F7F6F3;
    --card: #FFFFFF;
    --text-primary: #1D1D1F;
    --text-secondary: #6E6E73;
    --border: #E5E3DF;
}

* {
    box-sizing: border-box;
}

body {
    margin: 0;
    background: var(--background);
    color: var(--text-primary);
    font-family: -apple-system, BlinkMacSystemFont, "Apple SD Gothic Neo",
        "Noto Sans KR", sans-serif;
    line-height: 1.7;
}

a {
    color: inherit;
}

.container {
    width: min(720px, calc(100% - 40px));
    margin: 0 auto;
}

header {
    padding: 28px 0;
}

.brand {
    color: var(--primary);
    font-size: 22px;
    font-weight: 800;
    text-decoration: none;
}

.hero {
    min-height: 65vh;
    display: flex;
    align-items: center;
}

.hero h1 {
    margin: 0 0 18px;
    font-size: clamp(42px, 8vw, 72px);
    line-height: 1.05;
    letter-spacing: -2px;
}

.hero p {
    max-width: 520px;
    margin: 0;
    color: var(--text-secondary);
    font-size: 18px;
}

.hero .accent {
    color: var(--primary);
}

.links {
    display: flex;
    gap: 12px;
    margin-top: 32px;
    flex-wrap: wrap;
}

.button {
    padding: 11px 16px;
    border: 1px solid var(--border);
    border-radius: 12px;
    background: var(--card);
    text-decoration: none;
    font-size: 14px;
    font-weight: 600;
}

.document {
    padding: 50px 0 100px;
}

.document h1 {
    margin-bottom: 8px;
    font-size: 34px;
    letter-spacing: -1px;
}

.updated {
    margin-bottom: 48px;
    color: var(--text-secondary);
    font-size: 14px;
}

.document h2 {
    margin-top: 42px;
    font-size: 21px;
}

.document h3 {
    margin-top: 24px;
    font-size: 17px;
}

.document p,
.document li {
    color: #444;
}

.document ul {
    padding-left: 22px;
}

footer {
    padding: 30px 0 50px;
    border-top: 1px solid var(--border);
    color: var(--text-secondary);
    font-size: 13px;
}

@media (prefers-color-scheme: dark) {
    :root {
        --background: #111111;
        --card: #1C1C1E;
        --text-primary: #F5F5F7;
        --text-secondary: #A1A1A6;
        --border: #333336;
    }

    .document p,
    .document li {
        color: #D1D1D6;
    }
}