/* Landing (mode selector) styles */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    --bg: #0b1220;
    --card: rgba(255, 255, 255, 0.06);
    --card-border: rgba(255, 255, 255, 0.12);
    --text: rgba(255, 255, 255, 0.92);
    --muted: rgba(255, 255, 255, 0.68);
    --brand: #58a6ff;
    --brand2: #3fb950;
}

html,
body {
    height: 100%;
}

body {
    font-family: 'Inter', system-ui, -apple-system, Segoe UI, Roboto, Arial, sans-serif;
    background:
        radial-gradient(1000px 600px at 20% 10%, rgba(88, 166, 255, 0.18), transparent 60%),
        radial-gradient(900px 600px at 80% 80%, rgba(63, 185, 80, 0.16), transparent 55%),
        var(--bg);
    color: var(--text);
    min-height: 100vh;
    display: grid;
    place-items: center;
    padding: 24px;
}

.landing {
    width: 100%;
    max-width: 900px;
}

.card {
    background: var(--card);
    border: 1px solid var(--card-border);
    border-radius: 16px;
    padding: 28px;
    box-shadow: 0 18px 60px rgba(0, 0, 0, 0.45);
    backdrop-filter: blur(10px);
}

.badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 6px 10px;
    border-radius: 999px;
    background: rgba(88, 166, 255, 0.12);
    border: 1px solid rgba(88, 166, 255, 0.22);
    color: var(--text);
    font-weight: 600;
    font-size: 13px;
    margin-bottom: 14px;
}

.card h1 {
    font-size: 34px;
    line-height: 1.15;
    margin-bottom: 10px;
}

.subtitle {
    color: var(--muted);
    font-size: 15px;
    margin-bottom: 18px;
}

.desc {
    color: var(--text);
    margin-bottom: 18px;
}

.options {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 14px;
}

.option {
    text-decoration: none;
    color: inherit;
    border-radius: 14px;
    border: 1px solid var(--card-border);
    background: rgba(0, 0, 0, 0.22);
    padding: 18px;
    transition: transform 0.2s ease, border-color 0.2s ease, background 0.2s ease;
}

.option:hover {
    transform: translateY(-2px);
    border-color: rgba(88, 166, 255, 0.35);
    background: rgba(0, 0, 0, 0.28);
}

.option-title {
    font-weight: 700;
    margin-bottom: 6px;
    display: flex;
    align-items: center;
    gap: 10px;
}

.option-title::before {
    content: "";
    width: 10px;
    height: 10px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--brand), var(--brand2));
}

.option-desc {
    color: var(--muted);
    font-size: 14px;
    line-height: 1.5;
}

.mono {
    font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono", "Courier New", monospace;
    font-size: 0.95em;
    color: rgba(255, 255, 255, 0.86);
}

.note {
    margin-top: 16px;
    color: var(--muted);
    font-size: 13px;
}

@media (max-width: 740px) {
    .options {
        grid-template-columns: 1fr;
    }
    .card h1 {
        font-size: 28px;
    }
}

::selection {
    background: rgba(88, 166, 255, 0.35);
}