:root {
    color-scheme: light;
    --bg: #f8fafc;
    --surface: #ffffff;
    --surface-muted: #eef6f4;
    --text: #14213d;
    --muted: #5c677d;
    --line: #d8e2e7;
    --primary: #087f7a;
    --primary-dark: #065f5b;
    --accent: #ef8354;
    --shadow: 0 24px 70px rgba(20, 33, 61, 0.12);
}

* {
    box-sizing: border-box;
}

html {
    background: var(--bg);
}

body {
    margin: 0;
    min-height: 100vh;
    background: var(--bg);
    color: var(--text);
    font-family: Inter, Pretendard, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
    line-height: 1.6;
}

a {
    color: inherit;
    text-decoration: none;
}

.site-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 24px;
    width: min(1120px, calc(100% - 40px));
    margin: 0 auto;
    padding: 22px 0;
}

.brand {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    font-size: 18px;
    font-weight: 760;
}

.brand-mark {
    display: grid;
    place-items: center;
    width: 34px;
    height: 34px;
    border-radius: 8px;
    background: var(--text);
    color: #ffffff;
    font-size: 17px;
}

.nav {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 14px;
    font-weight: 650;
    color: var(--muted);
}

.nav a {
    border-radius: 8px;
    padding: 8px 10px;
}

.nav a:hover,
.nav a[aria-current="page"] {
    background: var(--surface-muted);
    color: var(--primary-dark);
}

.hero {
    display: grid;
    grid-template-columns: minmax(0, 1.2fr) minmax(320px, 0.8fr);
    gap: 36px;
    align-items: center;
    width: min(1120px, calc(100% - 40px));
    min-height: calc(100vh - 112px);
    margin: 0 auto;
    padding: 28px 0 64px;
}

.hero-copy {
    max-width: 720px;
}

.eyebrow {
    margin: 0 0 12px;
    color: var(--primary);
    font-size: 13px;
    font-weight: 780;
    letter-spacing: 0;
    text-transform: uppercase;
}

h1,
h2,
h3,
p {
    overflow-wrap: anywhere;
}

h1 {
    margin: 0;
    max-width: 760px;
    font-size: 56px;
    line-height: 1.08;
    letter-spacing: 0;
}

.lead {
    max-width: 680px;
    margin: 22px 0 0;
    color: var(--muted);
    font-size: 18px;
}

.actions {
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
    margin-top: 34px;
}

.button {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-height: 46px;
    border: 1px solid transparent;
    border-radius: 8px;
    padding: 10px 16px;
    font-size: 15px;
    font-weight: 760;
}

.button.primary {
    background: var(--primary);
    color: #ffffff;
}

.button.secondary {
    border-color: var(--line);
    background: var(--surface);
    color: var(--text);
}

.product-panel,
.card {
    border: 1px solid rgba(216, 226, 231, 0.9);
    border-radius: 8px;
    background: var(--surface);
    box-shadow: var(--shadow);
}

.product-panel {
    padding: 28px;
}

.loop-symbol {
    width: 84px;
    height: 84px;
    display: grid;
    place-items: center;
    border-radius: 20px;
    background: #e4f5f2;
    color: var(--primary-dark);
    font-size: 34px;
    font-weight: 850;
    line-height: 1;
}

.product-panel h2 {
    margin: 24px 0 8px;
    font-size: 28px;
    letter-spacing: 0;
}

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

.facts,
.document-list {
    display: grid;
    gap: 12px;
    margin: 22px 0 0;
}

.facts div,
.document-list div {
    display: grid;
    grid-template-columns: 92px 1fr;
    gap: 14px;
    border-top: 1px solid var(--line);
    padding-top: 12px;
}

dt {
    color: var(--muted);
    font-weight: 700;
}

dd {
    margin: 0;
    font-weight: 700;
}

.section {
    width: min(1120px, calc(100% - 40px));
    margin: 0 auto;
    padding: 72px 0;
}

.section-heading {
    max-width: 740px;
}

.section h2 {
    margin: 0;
    font-size: 34px;
    line-height: 1.2;
    letter-spacing: 0;
}

.grid {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 18px;
    margin-top: 28px;
}

.card {
    padding: 22px;
    box-shadow: none;
}

.card h3 {
    margin: 0 0 10px;
    font-size: 20px;
}

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

.document {
    width: min(820px, calc(100% - 40px));
    margin: 0 auto;
    padding: 56px 0 80px;
}

.document h1 {
    font-size: 42px;
}

.updated {
    margin: 12px 0 42px;
    color: var(--muted);
    font-size: 15px;
}

.document section {
    border-top: 1px solid var(--line);
    padding: 28px 0;
}

.document h2 {
    margin: 0 0 12px;
    font-size: 23px;
    letter-spacing: 0;
}

.document p,
.document li {
    color: var(--muted);
}

.contact-box {
    border: 1px solid var(--line);
    border-radius: 8px;
    background: var(--surface);
    padding: 14px 16px;
    font-weight: 760;
}

.site-footer {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 20px;
    width: min(1120px, calc(100% - 40px));
    margin: 0 auto;
    border-top: 1px solid var(--line);
    padding: 24px 0 36px;
    color: var(--muted);
    font-size: 14px;
}

.site-footer a {
    color: var(--primary-dark);
    font-weight: 700;
}

@media (max-width: 820px) {
    .site-header,
    .site-footer {
        align-items: flex-start;
        flex-direction: column;
    }

    .nav {
        flex-wrap: wrap;
    }

    .hero {
        grid-template-columns: 1fr;
        min-height: auto;
        padding-top: 30px;
    }

    h1 {
        font-size: 42px;
    }

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

@media (max-width: 480px) {
    .site-header,
    .hero,
    .section,
    .document,
    .site-footer {
        width: min(100% - 28px, 1120px);
    }

    h1,
    .document h1 {
        font-size: 34px;
    }

    .lead {
        font-size: 16px;
    }

    .facts div,
    .document-list div {
        grid-template-columns: 1fr;
        gap: 4px;
    }

    .button {
        width: 100%;
    }
}