:root {
    --fg: #1a1a1a;
    --muted: #666;
    --bg: #fafafa;
    --accent: #2563eb;
    --rule: #e5e5e5;
}

* { box-sizing: border-box; }

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

main {
    max-width: 640px;
    margin: 0 auto;
    padding: 48px 24px 96px;
}

header {
    margin-bottom: 48px;
}

h1 {
    font-size: 28px;
    margin: 0 0 4px;
    letter-spacing: -0.01em;
}

h2 {
    font-size: 20px;
    margin: 32px 0 12px;
    letter-spacing: -0.01em;
}

h3 {
    font-size: 16px;
    margin: 24px 0 4px;
}

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

p {
    margin: 0 0 12px;
}

a {
    color: var(--accent);
    text-decoration: none;
}

a:hover {
    text-decoration: underline;
}

ul.apps {
    list-style: none;
    padding: 0;
    margin: 0;
}

ul.apps li {
    padding: 16px 0;
    border-bottom: 1px solid var(--rule);
}

ul.apps li:last-child {
    border-bottom: none;
}

footer {
    margin-top: 64px;
    padding-top: 24px;
    border-top: 1px solid var(--rule);
    color: var(--muted);
    font-size: 14px;
}

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

.policy section {
    margin: 24px 0;
}

.policy h2 {
    margin-top: 32px;
}

.policy ul {
    padding-left: 24px;
}

.policy li {
    margin: 4px 0;
}

.last-updated {
    margin-top: 48px;
    color: var(--muted);
    font-size: 14px;
}

/* --- App listing buttons --- */
.store {
    display: inline-block;
    margin-top: 8px;
    padding: 7px 14px;
    border-radius: 8px;
    background: var(--accent);
    color: #fff;
    font-size: 14px;
    font-weight: 600;
}
.store:hover { text-decoration: none; opacity: 0.9; }
.soon {
    display: inline-block;
    margin-top: 8px;
    font-size: 14px;
    color: var(--muted);
}
ul.apps .links { margin-top: 8px; font-size: 14px; }

/* --- Article / guide pages --- */
article header { margin-bottom: 24px; }
.article-meta {
    color: var(--muted);
    font-size: 14px;
    margin: 0;
}
article h2 { margin-top: 36px; }
article p, article li { font-size: 16px; }

table {
    border-collapse: collapse;
    width: 100%;
    margin: 16px 0;
    font-size: 15px;
}
th, td {
    text-align: left;
    padding: 8px 10px;
    border-bottom: 1px solid var(--rule);
}
th { font-weight: 600; }
td.num, th.num { white-space: nowrap; }

.callout {
    margin: 24px 0;
    padding: 14px 16px;
    border-left: 3px solid var(--accent);
    background: #f0f4ff;
    border-radius: 0 8px 8px 0;
    font-size: 15px;
}
.callout.warn {
    border-left-color: #c2410c;
    background: #fff5ed;
}
.callout p:last-child { margin-bottom: 0; }
.callout strong { display: block; margin-bottom: 4px; }

.cta {
    margin: 40px 0 8px;
    padding: 20px;
    border: 1px solid var(--rule);
    border-radius: 12px;
    background: #fff;
}
.cta h3 { margin-top: 0; }
.cta p { margin-bottom: 12px; }

.sources {
    margin-top: 40px;
    padding-top: 16px;
    border-top: 1px solid var(--rule);
    font-size: 14px;
    color: var(--muted);
}
.sources h2 { font-size: 15px; margin: 0 0 8px; }
.sources ul { padding-left: 20px; margin: 0; }
.sources li { margin: 4px 0; font-size: 14px; }

.related { margin-top: 32px; font-size: 15px; }