:root {
    --bg: #f6f7f9;
    --surface: #ffffff;
    --text: #1a1d23;
    --muted: #5c6570;
    --border: #e4e7ec;
    --accent: #1f6b5a;
    --link: #1a5f8a;
}

* {
    box-sizing: border-box;
}

body {
    margin: 0;
    font-family: "Segoe UI", "Helvetica Neue", Arial, sans-serif;
    color: var(--text);
    background:
        radial-gradient(ellipse 80% 50% at 10% -10%, #dceee8 0%, transparent 55%),
        radial-gradient(ellipse 60% 40% at 100% 0%, #e8eef5 0%, transparent 50%),
        var(--bg);
    line-height: 1.65;
}

.wrap {
    max-width: 760px;
    margin: 0 auto;
    padding: 2.5rem 1.25rem 4rem;
}

.brand {
    font-size: 0.85rem;
    font-weight: 600;
    letter-spacing: 0.04em;
    text-transform: uppercase;
    color: var(--accent);
    margin: 0 0 0.75rem;
}

h1 {
    margin: 0 0 0.5rem;
    font-size: clamp(1.75rem, 4vw, 2.25rem);
    line-height: 1.2;
    font-weight: 700;
}

.effective {
    margin: 0 0 1.75rem;
    color: var(--muted);
    font-size: 0.95rem;
}

.card {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: 12px;
    padding: 1.75rem 1.5rem;
}

.owner {
    margin: 0 0 1.5rem;
    padding-bottom: 1.25rem;
    border-bottom: 1px solid var(--border);
    color: var(--muted);
    font-size: 0.95rem;
}

.owner strong {
    color: var(--text);
}

h2 {
    margin: 1.75rem 0 0.65rem;
    font-size: 1.15rem;
    font-weight: 650;
}

h3 {
    margin: 1.25rem 0 0.5rem;
    font-size: 1.02rem;
    font-weight: 650;
}

p {
    margin: 0 0 0.85rem;
}

ul {
    margin: 0 0 0.85rem;
    padding-left: 1.25rem;
}

li {
    margin-bottom: 0.35rem;
}

a {
    color: var(--link);
}

.appendix {
    margin-top: 1.75rem;
    padding-top: 1.25rem;
    border-top: 1px solid var(--border);
}

.checkbox-sample {
    margin: 1rem 0 0;
    padding: 0.9rem 1rem;
    border: 1px dashed var(--border);
    border-radius: 8px;
    background: #fbfcfd;
    color: var(--text);
}

footer {
    margin-top: 1.5rem;
    color: var(--muted);
    font-size: 0.85rem;
}

[data-lang-block][hidden] {
    display: none !important;
}

.screens {
    display: grid;
    gap: 1.25rem;
    margin: 1rem 0 1.5rem;
}

.screens figure {
    margin: 0;
    padding: 0.75rem;
    border: 1px solid var(--border);
    border-radius: 12px;
    background: #fbfcfd;
}

.screens img {
    display: block;
    width: 100%;
    max-width: 320px;
    height: auto;
    margin: 0 auto;
    border-radius: 8px;
}

.screens figcaption {
    margin-top: 0.65rem;
    color: var(--muted);
    font-size: 0.9rem;
    text-align: center;
}