:root {
    --bg: #f7f8fa;
    --card: #ffffff;
    --fg: #1a1f2e;
    --muted: #6b7280;
    --accent: #2d5cff;
    --accent-dark: #1e40af;
    --border: #e5e7eb;
}
* { box-sizing: border-box; }
html, body { margin: 0; padding: 0; }
body {
    font: 16px/1.55 -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
    color: var(--fg);
    background: var(--bg);
}
.wrap { max-width: 860px; margin: 0 auto; padding: 0 20px; }

/* header */
.site-header { background: #fff; border-bottom: 1px solid var(--border); padding: 14px 0; }
.site-header .wrap { display: flex; align-items: center; justify-content: space-between; flex-wrap: wrap; gap: 16px; }
.brand { text-decoration: none; color: var(--fg); font-weight: 700; font-size: 18px; letter-spacing: -0.01em; }
.site-nav { display: flex; gap: 18px; flex-wrap: wrap; }
.site-nav a { color: var(--fg); text-decoration: none; font-size: 14px; padding: 4px 0; border-bottom: 2px solid transparent; }
.site-nav a:hover { color: var(--accent); }
.site-nav a.on { border-bottom-color: var(--accent); color: var(--accent); }

main.wrap { padding-top: 32px; padding-bottom: 48px; }

/* minimalist home */
.home-minimal { padding: 80px 0 40px; text-align: center; }
.home-minimal h1 { font-size: 42px; letter-spacing: -0.02em; margin: 0; }

/* cards / typography for other pages */
.card { background: var(--card); border: 1px solid var(--border); border-radius: 10px; padding: 24px; margin-bottom: 20px; }
.card h1, .card h2 { margin-top: 0; }
.card .muted { color: var(--muted); font-size: 14px; }
h1 { font-size: 28px; letter-spacing: -0.01em; margin: 0 0 8px; }
h2 { font-size: 20px; margin: 24px 0 12px; }
h3 { font-size: 16px; margin: 20px 0 8px; }
p, li { line-height: 1.6; }
a { color: var(--accent); }
a:hover { color: var(--accent-dark); }
strong { font-weight: 600; }

/* /info: SMS-lines disclosure box */
.disclosure {
    background: #fffbeb;
    border: 2px solid #fbbf24;
    border-radius: 12px;
    padding: 20px 22px;
    margin-bottom: 24px;
}
.disclosure h2 { margin-top: 0; color: #92400e; font-size: 18px; }
.disclosure ul { margin: 8px 0; padding-left: 22px; }
.disclosure .legal-links { margin-top: 14px; padding-top: 12px; border-top: 1px solid #fbbf24; font-size: 15px; }
.disclosure .legal-links a { font-weight: 600; }

/* /info: brand block */
.brand-block {
    background: #f0f4ff;
    border: 1px solid #c7d2fe;
    border-radius: 10px;
    padding: 20px;
    margin-bottom: 20px;
}
.brand-block h1 { margin: 0 0 4px; }
.brand-block .sub { color: var(--muted); font-size: 15px; margin-bottom: 12px; }
.brand-block .biz-meta { font-size: 14px; color: var(--muted); line-height: 1.8; }
.brand-block .biz-meta strong { color: var(--fg); }

/* /info: sign-in hub */
.signin-hub h2 { margin-bottom: 16px; }
.signin-tiles { display: grid; grid-template-columns: repeat(auto-fill, minmax(240px, 1fr)); gap: 12px; }
.signin-tile {
    display: block;
    padding: 16px 18px;
    border: 1px solid var(--border);
    border-radius: 8px;
    background: var(--card);
    text-decoration: none;
    color: var(--fg);
    transition: border-color 0.15s;
}
.signin-tile:hover { border-color: var(--accent); }
.signin-tile.disabled { opacity: 0.5; cursor: not-allowed; }
.signin-tile-name { font-weight: 600; font-size: 15px; margin-bottom: 4px; }
.signin-tile-desc { font-size: 13px; color: var(--muted); }

/* legal pages */
.legal h1 { margin-bottom: 4px; }
.legal .updated { color: var(--muted); font-size: 13px; margin-bottom: 24px; }
.legal ul { padding-left: 24px; }

/* phone-number list */
.phone-list { list-style: none; padding: 0; margin: 12px 0; }
.phone-list li { padding: 6px 0; font-family: -apple-system, BlinkMacSystemFont, "SF Mono", Menlo, monospace; font-size: 15px; }
.phone-list li .label { font-family: inherit; color: var(--muted); font-size: 13px; margin-left: 10px; }

/* footer */
.site-footer { border-top: 1px solid var(--border); background: #fff; padding: 24px 0; margin-top: 60px; }
.site-footer .wrap { display: flex; flex-direction: column; align-items: center; gap: 10px; }
.foot-links { display: flex; gap: 16px; flex-wrap: wrap; justify-content: center; }
.foot-links a { color: var(--muted); text-decoration: none; font-size: 13px; }
.foot-links a:hover { color: var(--accent); }
.foot-copy { color: var(--muted); font-size: 12px; }

@media (max-width: 600px) {
    .brand { font-size: 16px; }
    .signin-tiles { grid-template-columns: 1fr; }
    .home-minimal h1 { font-size: 32px; }
}