:root {
    color-scheme: light dark;
    --bg: #ffffff;
    --fg: #1c1c1e;
    --muted: #6e6e73;
    --accent: #ff9500;
    --card-bg: #f5f5f7;
    --border: #e5e5ea;
    --max-width: 780px;
}

@media (prefers-color-scheme: dark) {
    :root {
        --bg: #1c1c1e;
        --fg: #f5f5f7;
        --muted: #a1a1a6;
        --card-bg: #2c2c2e;
        --border: #3a3a3c;
    }
}

* {
    box-sizing: border-box;
}

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

header, main, footer {
    max-width: var(--max-width);
    margin: 0 auto;
    padding: 0 24px;
}

header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding-top: 28px;
    padding-bottom: 8px;
}

.brand {
    display: flex;
    align-items: center;
    gap: 10px;
    text-decoration: none;
    color: var(--fg);
    font-weight: 600;
    font-size: 17px;
}

.brand img {
    width: 28px;
    height: 28px;
    border-radius: 6px;
}

nav a {
    color: var(--muted);
    text-decoration: none;
    margin-left: 20px;
    font-size: 15px;
}

nav a:hover {
    color: var(--fg);
}

.hero {
    text-align: center;
    padding: 56px 24px 40px;
}

.hero img {
    width: 96px;
    height: 96px;
    border-radius: 20px;
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.15);
}

.hero h1 {
    font-size: 34px;
    margin: 20px 0 8px;
}

.hero p.tagline {
    color: var(--muted);
    font-size: 19px;
    margin: 0 auto 28px;
    max-width: 520px;
}

.store-badge {
    display: inline-block;
}

.store-badge img {
    height: 44px;
    width: auto;
    border-radius: 0;
    box-shadow: none;
}

.store-badge.disabled {
    opacity: 0.5;
    pointer-events: none;
    filter: grayscale(1);
}

.coming-soon {
    color: var(--muted);
    font-size: 14px;
    margin-top: 8px;
}

.features {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 16px;
    margin: 32px 0 56px;
}

.feature {
    background: var(--card-bg);
    border: 1px solid var(--border);
    border-radius: 16px;
    padding: 20px;
}

.feature h3 {
    margin: 0 0 6px;
    font-size: 17px;
}

.feature p {
    margin: 0;
    color: var(--muted);
    font-size: 15px;
}

main.page {
    padding-top: 40px;
    padding-bottom: 64px;
}

main.page h1 {
    font-size: 28px;
}

main.page h2 {
    font-size: 20px;
    margin-top: 32px;
}

main.page p, main.page li {
    color: var(--fg);
}

main.page .updated {
    color: var(--muted);
    font-size: 14px;
}

footer {
    border-top: 1px solid var(--border);
    padding: 24px;
    color: var(--muted);
    font-size: 13px;
    text-align: center;
}

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