/* TodoLines public site — minimal, mobile-first, no JS. */

:root {
    --bg: #f7f7fa;
    --fg: #1a1a22;
    --fg-muted: #5a5a66;
    --accent: #2e7d32;
    --accent-hover: #256328;
    --card: #ffffff;
    --border: #e3e3ea;
    --code-bg: #f0f0f4;
}

@media (prefers-color-scheme: dark) {
    :root {
        --bg: #14141a;
        --fg: #e8e8ee;
        --fg-muted: #9a9aa6;
        --accent: #66bb6a;
        --accent-hover: #81c784;
        --card: #1d1d24;
        --border: #2c2c36;
        --code-bg: #25252e;
    }
}

* { box-sizing: border-box; }

html { -webkit-text-size-adjust: 100%; }

body {
    margin: 0;
    padding: 0;
    background: var(--bg);
    color: var(--fg);
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Oxygen,
                 Ubuntu, Cantarell, "Helvetica Neue", sans-serif;
    line-height: 1.55;
    font-size: 16px;
}

main {
    max-width: 720px;
    margin: 0 auto;
    padding: 32px 20px 80px;
}

header.site-header {
    text-align: center;
    margin-bottom: 24px;
}

header.site-header h1 {
    font-size: 1.6rem;
    margin: 0 0 4px;
    letter-spacing: -0.02em;
}

header.site-header p {
    margin: 0;
    color: var(--fg-muted);
    font-size: 0.95rem;
}

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

a:hover { text-decoration: underline; }

nav.lang-switcher {
    display: flex;
    justify-content: center;
    gap: 16px;
    margin: 16px 0 32px;
    font-size: 0.95rem;
}

nav.lang-switcher a { color: var(--fg-muted); }

nav.lang-switcher a.active {
    color: var(--fg);
    font-weight: 600;
}

article {
    background: var(--card);
    border: 1px solid var(--border);
    border-radius: 12px;
    padding: 28px 24px;
    margin-bottom: 24px;
}

article h1 { font-size: 1.4rem; margin-top: 0; }
article h2 { font-size: 1.1rem; margin-top: 28px; }
article h3 { font-size: 1rem; margin-top: 20px; }

article p, article ul, article ol { margin: 12px 0; }
article ul, article ol { padding-left: 22px; }

article code {
    background: var(--code-bg);
    padding: 2px 6px;
    border-radius: 4px;
    font-size: 0.9em;
}

article blockquote {
    border-left: 3px solid var(--accent);
    margin: 12px 0;
    padding: 4px 16px;
    color: var(--fg-muted);
    font-style: italic;
}

footer.site-footer {
    text-align: center;
    color: var(--fg-muted);
    font-size: 0.85rem;
    margin-top: 32px;
}

footer.site-footer a { color: var(--fg-muted); }

/* Landing page */

.landing-hero {
    text-align: center;
    margin: 48px 0 32px;
}

.landing-hero img.app-icon {
    width: 96px;
    height: 96px;
    border-radius: 22%;
    margin-bottom: 16px;
    box-shadow: 0 4px 16px rgba(0,0,0,0.08);
}

.landing-hero h1 {
    font-size: 2.2rem;
    margin: 0 0 8px;
    letter-spacing: -0.02em;
}

.landing-hero p.tagline {
    color: var(--fg-muted);
    font-size: 1.05rem;
    margin: 0 0 24px;
}

.landing-hero a.play-store-btn {
    display: inline-block;
    background: var(--accent);
    color: #fff;
    padding: 12px 24px;
    border-radius: 999px;
    font-weight: 600;
    font-size: 0.95rem;
}

.landing-hero a.play-store-btn:hover {
    background: var(--accent-hover);
    text-decoration: none;
}

.landing-features {
    display: grid;
    grid-template-columns: 1fr;
    gap: 16px;
    margin: 32px 0;
}

@media (min-width: 600px) {
    .landing-features { grid-template-columns: 1fr 1fr; }
}

.landing-features div {
    background: var(--card);
    border: 1px solid var(--border);
    border-radius: 10px;
    padding: 16px 18px;
}

.landing-features h3 { margin: 0 0 6px; font-size: 1rem; }
.landing-features p { margin: 0; color: var(--fg-muted); font-size: 0.92rem; }

.landing-links {
    text-align: center;
    margin-top: 40px;
    padding-top: 24px;
    border-top: 1px solid var(--border);
    font-size: 0.92rem;
}

.landing-links a {
    margin: 0 12px;
    color: var(--fg-muted);
}