:root {
    --ink: #1b1b1f;
    --muted: #5a5a66;
    --bg: #fafaf7;
    --surface: #ffffff;
    --border: #d9d9d2;
    --accent: #1a5fbf;
    --accent-ink: #ffffff;
    --warning-bg: #fff7d6;
    --warning-border: #d6b100;
    --ok-bg: #e7f5ec;
    --ok-border: #3a8a5c;
    --danger: #a8201a;
    --radius: 6px;
    --gap: 1rem;
}

* { box-sizing: border-box; }

html { font-size: 17px; }

body {
    margin: 0;
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
    color: var(--ink);
    background: var(--bg);
    line-height: 1.55;
}

.site-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0.9rem 1.5rem;
    background: var(--surface);
    border-bottom: 1px solid var(--border);
}

.site-header .brand {
    font-weight: 700;
    font-size: 1.15rem;
    text-decoration: none;
    color: var(--ink);
}

.site-header nav a {
    margin-left: 1rem;
    color: var(--accent);
    text-decoration: none;
}

main {
    max-width: 780px;
    margin: 2rem auto;
    padding: 0 1.25rem;
}

h1 { font-size: 1.6rem; margin-top: 0; }
h2 { font-size: 1.2rem; }

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

.callout {
    border: 1px solid var(--border);
    border-left-width: 5px;
    background: var(--surface);
    padding: 0.9rem 1rem;
    margin: 1.25rem 0;
    border-radius: var(--radius);
}
.callout.warning { border-left-color: var(--warning-border); background: var(--warning-bg); }
.callout.ok { border-left-color: var(--ok-border); background: var(--ok-bg); }
.callout.disclaimer { border-left-color: var(--accent); background: var(--surface); font-size: 1.05rem; }
.callout ul { margin: 0.5rem 0 0 1.2rem; }
.callout code { background: rgba(0,0,0,0.05); padding: 0 0.25rem; border-radius: 3px; }

.upload-form, .confirm-form {
    background: var(--surface);
    padding: 1.25rem;
    border: 1px solid var(--border);
    border-radius: var(--radius);
}
.upload-form p, .confirm-form p { margin: 0 0 0.75rem; }

button, .button {
    display: inline-block;
    padding: 0.6rem 1rem;
    font-size: 1rem;
    border: 1px solid var(--accent);
    background: var(--accent);
    color: var(--accent-ink);
    border-radius: var(--radius);
    cursor: pointer;
    text-decoration: none;
}
button.secondary, .button.secondary {
    background: transparent;
    color: var(--accent);
}
button.link {
    background: transparent;
    border: 0;
    color: var(--accent);
    padding: 0;
    text-decoration: underline;
    cursor: pointer;
}
button.link.danger { color: var(--danger); }

.actions { display: flex; gap: 0.75rem; margin-top: 1rem; align-items: center; }
form.inline { display: inline; }

.text-preview { margin: 1rem 0; }
.text-preview pre {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 1rem;
    max-height: 320px;
    overflow: auto;
    white-space: pre-wrap;
}

.language-list {
    list-style: none;
    padding: 0;
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(180px, 1fr));
    gap: 0.6rem;
}
.language-list li {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius);
}
.language-list a {
    display: block;
    padding: 0.9rem 1rem;
    font-size: 1.25rem;
    text-decoration: none;
    color: var(--ink);
}
.language-list a:hover { background: var(--bg); }

.qr-section { margin-top: 2rem; }
.qr-section .qr { max-width: 220px; height: auto; display: block; background: white; padding: 0.5rem; border: 1px solid var(--border); border-radius: var(--radius); }
.link-label code { word-break: break-all; }

.parent-read pre {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 1rem;
    white-space: pre-wrap;
    font: inherit;
    font-size: 1.05rem;
}
.parent-read .simple { margin-top: 1.5rem; }
.parent-read .nav-back { margin-top: 2rem; }
.parent-read .loading { color: var(--muted); font-style: italic; }

.docs-table { width: 100%; border-collapse: collapse; background: var(--surface); }
.docs-table th, .docs-table td { padding: 0.6rem 0.75rem; border-bottom: 1px solid var(--border); text-align: left; vertical-align: top; }
.docs-table code { font-size: 0.85rem; }

.site-footer {
    max-width: 780px;
    margin: 3rem auto 2rem;
    padding: 1rem 1.25rem 0;
    color: var(--muted);
    border-top: 1px solid var(--border);
    font-size: 0.9rem;
}
.site-footer .legal-links a { color: var(--muted); text-decoration: none; }
.site-footer .legal-links a:hover { text-decoration: underline; }

.legal h1 { margin-bottom: 1rem; }
.legal h2 { margin-top: 2rem; font-size: 1.15rem; }
.legal h3 { margin-top: 1.25rem; font-size: 1.02rem; }
.legal ul { padding-left: 1.25rem; }
.legal code { background: rgba(0,0,0,0.05); padding: 0 0.25rem; border-radius: 3px; }