:root {
    --primary: #0284c7;
    --primary-dark: #075985;
    --accent: #16a34a;
    --bg: #f1f5f9;
    --card: #ffffff;
    --text: #0f172a;
    --muted: #64748b;
    --border: #e2e8f0;
}

* {
    box-sizing: border-box;
}

body {
    margin: 0;
    background: var(--bg);
    color: var(--text);
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Arial, sans-serif;
    line-height: 1.75;
}

a {
    color: var(--primary-dark);
}

.site-header {
    background: var(--primary);
    color: #fff;
    position: sticky;
    top: 0;
    z-index: 20;
    box-shadow: 0 2px 8px rgba(15, 23, 42, 0.12);
}

.site-header-inner {
    max-width: 960px;
    margin: 0 auto;
    padding: 12px 16px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
}

.brand {
    color: #fff;
    font-weight: 800;
    text-decoration: none;
    white-space: nowrap;
}

.site-nav {
    display: flex;
    flex-wrap: wrap;
    justify-content: flex-end;
    gap: 10px;
}

.site-nav a {
    color: #e0f2fe;
    text-decoration: none;
    font-size: 0.92rem;
    font-weight: 700;
}

.site-nav a:hover {
    color: #fff;
}

.container {
    max-width: 920px;
    margin: 0 auto;
    padding: 22px 16px 44px;
}

.page-card {
    background: var(--card);
    border: 1px solid var(--border);
    border-radius: 8px;
    padding: 28px;
    box-shadow: 0 4px 16px rgba(15, 23, 42, 0.05);
}

.eyebrow {
    color: var(--primary-dark);
    font-size: 0.9rem;
    font-weight: 800;
    margin: 0 0 6px;
}

h1 {
    margin: 0 0 14px;
    font-size: 2rem;
    line-height: 1.25;
}

h2 {
    margin: 34px 0 12px;
    font-size: 1.45rem;
    border-left: 5px solid var(--primary);
    padding-left: 12px;
}

h3 {
    margin: 24px 0 8px;
    font-size: 1.15rem;
}

p,
li {
    color: #334155;
}

.lead {
    color: var(--muted);
    font-size: 1.08rem;
}

.info-grid {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 14px;
    margin: 22px 0;
}

.info-box {
    border: 1px solid var(--border);
    border-radius: 8px;
    padding: 16px;
    background: #f8fafc;
}

.info-box strong {
    display: block;
    color: var(--text);
    margin-bottom: 6px;
}

.table-wrap {
    overflow-x: auto;
    margin: 18px 0;
}

table {
    width: 100%;
    border-collapse: collapse;
    min-width: 620px;
}

th,
td {
    border: 1px solid var(--border);
    padding: 10px 12px;
    text-align: left;
    vertical-align: top;
}

th {
    background: #e0f2fe;
    color: #0c4a6e;
}

.question-card {
    border: 1px solid var(--border);
    border-radius: 8px;
    padding: 16px;
    margin: 14px 0;
    background: #fff;
}

.bank-summary {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 12px;
    margin: 22px 0;
}

.bank-stat {
    background: #f8fafc;
    border: 1px solid var(--border);
    border-radius: 8px;
    padding: 14px;
}

.bank-stat strong {
    display: block;
    color: var(--primary-dark);
    font-size: 1.35rem;
}

.question-list {
    margin-top: 22px;
}

.question-item {
    border: 1px solid var(--border);
    border-radius: 8px;
    background: #fff;
    padding: 18px;
    margin: 14px 0;
}

.question-meta {
    color: var(--primary-dark);
    font-weight: 800;
    font-size: 0.92rem;
    margin-bottom: 8px;
}

.question-title {
    color: var(--text);
    font-weight: 800;
    margin: 0 0 12px;
}

.option-list {
    list-style: none;
    padding: 0;
    margin: 0;
}

.option-list li {
    padding: 6px 0;
}

.option-list .correct {
    color: var(--accent);
    font-weight: 800;
}

.answer {
    color: var(--accent);
    font-weight: 800;
}

.site-footer {
    max-width: 920px;
    margin: 0 auto;
    padding: 0 16px 30px;
    color: var(--muted);
    font-size: 0.88rem;
}

.site-footer a {
    color: var(--primary-dark);
    margin-right: 12px;
}

@media (max-width: 680px) {
    .site-header-inner {
        display: block;
    }

    .site-nav {
        justify-content: flex-start;
        margin-top: 8px;
    }

    .page-card {
        padding: 22px 18px;
    }

    h1 {
        font-size: 1.65rem;
    }

    .info-grid {
        grid-template-columns: 1fr;
    }

    .bank-summary {
        grid-template-columns: 1fr;
    }
}