:root {
    --bg: #f6f3ef;
    --card: #ffffff;
    --ink: #0f172a;
    --muted: #64748b;
    --accent: #7c3aed;
    --accent-2: #f97316;
    --border: #e2e8f0;
    --error: #b91c1c;
    --success: #065f46;
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: "Gill Sans", "Trebuchet MS", Candara, sans-serif;
    background: radial-gradient(1000px 600px at 10% -10%, #ffffff 0%, var(--bg) 60%, #efe7dd 100%);
    color: var(--ink);
    min-height: 100vh;
}

.exam-shell {
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
    align-items: center;
    justify-content: center;
    padding: 2rem;
}

.exam-card {
    background: var(--card);
    border: 1px solid var(--border);
    border-radius: 18px;
    padding: 2.25rem 2rem;
    box-shadow: 0 24px 60px rgba(15, 23, 42, 0.12);
    width: 100%;
    max-width: 760px;
}

.hidden {
    display: none !important;
}

.title {
    font-size: 2rem;
    margin-bottom: 0.35rem;
}

.subtitle {
    color: var(--muted);
    margin-bottom: 1.5rem;
}

.grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 1rem;
}

.form-group label {
    display: block;
    margin-bottom: 0.4rem;
    font-weight: 600;
}

.field {
    width: 100%;
    padding: 0.85rem 1rem;
    border-radius: 10px;
    border: 1px solid var(--border);
    background: #fbfbfb;
}

.actions {
    margin-top: 1rem;
    display: flex;
    gap: 0.75rem;
}

.btn {
    padding: 0.9rem 1.2rem;
    border-radius: 10px;
    border: none;
    font-weight: 700;
    cursor: pointer;
}

.primary {
    background: linear-gradient(135deg, var(--accent) 0%, var(--accent-2) 100%);
    color: #ffffff;
}

.secondary {
    background: #f1f5f9;
    color: var(--ink);
}

.status {
    margin-top: 1rem;
    font-weight: 600;
}

.status.error {
    color: var(--error);
}

.pill {
    background: #ede9fe;
    color: #5b21b6;
    padding: 0.4rem 0.75rem;
    border-radius: 999px;
    font-weight: 600;
    font-size: 0.85rem;
}

.header-row {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1rem;
}

.code-block {
    background: #111827;
    color: #e5e7eb;
    border-radius: 12px;
    padding: 1rem;
    margin-top: 0.75rem;
    overflow-x: auto;
}

.options {
    display: grid;
    gap: 0.75rem;
    margin-top: 1.25rem;
}

.option-btn {
    width: 100%;
    padding: 1rem;
    text-align: left;
    border-radius: 10px;
    border: 1px solid var(--border);
    background: #f8fafc;
    cursor: pointer;
}

.option-btn.selected {
    border-color: #7c3aed;
    background: #f3e8ff;
}

.muted {
    color: var(--muted);
}