:root {
    color-scheme: light dark;
    --background: #f5f6f8;
    --surface: #ffffff;
    --text: #17191c;
    --secondary: #5e6570;
    --accent: #1479c9;
    --border: #dfe3e8;
}

@media (prefers-color-scheme: dark) {
    :root {
        --background: #101214;
        --surface: #1b1e22;
        --text: #f4f5f7;
        --secondary: #a9b0ba;
        --accent: #65b7ff;
        --border: #30353b;
    }
}

* { box-sizing: border-box; }

.skip {
    position: fixed;
    left: 16px;
    top: 12px;
    z-index: 10;
    padding: 10px 14px;
    border-radius: 12px;
    background: var(--surface);
    color: var(--accent);
    transform: translateY(-160%);
}

.skip:focus { transform: translateY(0); }

body {
    margin: 0;
    background: var(--background);
    color: var(--text);
    font-family: -apple-system, BlinkMacSystemFont, "SF Pro Text", sans-serif;
    line-height: 1.6;
}

main {
    width: min(760px, calc(100% - 32px));
    margin: 48px auto;
}

article, nav {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: 22px;
    padding: clamp(22px, 5vw, 42px);
}

nav {
    display: flex;
    gap: 18px;
    margin-bottom: 18px;
    padding-block: 18px;
}

h1, h2 { line-height: 1.2; }
h1 { margin-top: 0; font-size: clamp(2rem, 7vw, 3.5rem); }
h2 { margin-top: 2rem; }
p, li { color: var(--secondary); }
a { color: var(--accent); }
.app-icon { display: block; border-radius: 20px; margin-bottom: 18px; }
.lead { font-size: 1.15rem; }
.language { border-top: 1px solid var(--border); margin-top: 42px; padding-top: 26px; }
.placeholder { color: #b14b3a; font-weight: 650; }