:root {
    --bg: #0b1220;
    --panel: #121b2f;
    --text: #e8ecf5;
    --muted: #a4adc2;
    --accent: #4c9aff;
    --accent-2: #0a4bd1;
    --border: rgba(255, 255, 255, 0.08);
    --max-width: 900px;
    --radius: 14px;
}

@media (prefers-color-scheme: light) {
    :root {
        --bg: #f7f9fc;
        --panel: #ffffff;
        --text: #0e1626;
        --muted: #55607a;
        --accent: #0a4bd1;
        --accent-2: #063aa6;
        --border: rgba(0, 0, 0, 0.08);
    }
}

* { box-sizing: border-box; }

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

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

a:hover, a:focus { text-decoration: underline; }

a:focus-visible {
    outline: 2px solid var(--accent);
    outline-offset: 3px;
    border-radius: 3px;
}

.wrap {
    max-width: var(--max-width);
    margin: 0 auto;
    padding: 32px 20px 80px;
}

header.site {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
    padding: 20px 0 12px;
    border-bottom: 1px solid var(--border);
    flex-wrap: wrap;
}

header.site .brand {
    display: flex;
    align-items: center;
    gap: 12px;
    font-weight: 700;
    font-size: 1.15rem;
    color: var(--text);
}

header.site nav a {
    margin-left: 18px;
    color: var(--muted);
    font-size: 0.95rem;
}

header.site nav a:hover { color: var(--text); }

.hero {
    padding: 56px 0 32px;
    text-align: center;
}

.hero h1 {
    font-size: clamp(2rem, 5vw, 3rem);
    margin: 0 0 10px;
    letter-spacing: -0.02em;
    background: linear-gradient(135deg, var(--accent), var(--accent-2));
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
}

.hero p.tagline {
    font-size: 1.2rem;
    color: var(--muted);
    max-width: 620px;
    margin: 0 auto;
}

.cta {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background: var(--accent);
    color: #fff;
    padding: 12px 22px;
    border-radius: 999px;
    font-weight: 600;
    margin-top: 24px;
}

.cta:hover, .cta:focus { background: var(--accent-2); text-decoration: none; }

section {
    margin-top: 40px;
}

section h2 {
    font-size: 1.5rem;
    letter-spacing: -0.01em;
    margin: 0 0 14px;
}

section h3 {
    font-size: 1.1rem;
    margin: 22px 0 8px;
}

.features {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(230px, 1fr));
    gap: 14px;
    margin-top: 8px;
}

.feature {
    background: var(--panel);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 18px;
}

.feature h3 { margin-top: 0; }

.feature p {
    color: var(--muted);
    margin: 6px 0 0;
    font-size: 0.95rem;
}

.screens {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
    gap: 14px;
    margin-top: 12px;
}

.screens img {
    width: 100%;
    height: auto;
    border-radius: var(--radius);
    border: 1px solid var(--border);
    background: var(--panel);
}

.panel {
    background: var(--panel);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 20px 22px;
}

dl.faq dt {
    font-weight: 600;
    margin-top: 16px;
}

dl.faq dd {
    margin: 6px 0 0;
    color: var(--muted);
}

ul.clean {
    padding-left: 20px;
}

ul.clean li { margin: 6px 0; }

footer.site {
    margin-top: 60px;
    padding-top: 20px;
    border-top: 1px solid var(--border);
    color: var(--muted);
    font-size: 0.9rem;
    display: flex;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 10px;
}

footer.site nav a { margin-left: 14px; color: var(--muted); }
footer.site nav a:first-child { margin-left: 0; }

code {
    background: rgba(127, 127, 127, 0.15);
    padding: 1px 6px;
    border-radius: 4px;
    font-size: 0.92em;
}

.small { color: var(--muted); font-size: 0.9rem; }