@import url('https://fonts.googleapis.com/css2?family=Prompt:wght@300;400;500;600;700&display=swap');

:root {
    --navy: #12345b;
    --royal: #2563eb;
    --ink: #172033;
    --muted: #667085;
    --line: #d9e2ef;
    --bg: #f5f7fb;
}

body {
    font-family: 'Prompt', system-ui, sans-serif;
    background: var(--bg);
    color: var(--ink);
}

.app-shell {
    min-height: 100vh;
}

.topbar {
    background: var(--navy);
    color: #fff;
}

.brand-mark {
    font-weight: 700;
    letter-spacing: 0;
}

.panel {
    background: #fff;
    border: 1px solid var(--line);
    border-radius: 8px;
    box-shadow: 0 10px 28px rgba(18, 52, 91, .07);
}

.btn-primary {
    background: var(--royal);
    border-color: var(--royal);
}

.metric {
    border-left: 4px solid var(--royal);
}

.exam-layout {
    display: grid;
    grid-template-columns: minmax(180px, 240px) 1fr;
    gap: 1rem;
}

.omr-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(44px, 1fr));
    gap: .5rem;
}

.omr-pill {
    aspect-ratio: 1;
    border: 1px solid var(--line);
    border-radius: 8px;
    display: grid;
    place-items: center;
    background: #fff;
    font-weight: 600;
}

@media (max-width: 768px) {
    .exam-layout {
        grid-template-columns: 1fr;
    }
}