:root {
    --pb-green: #1b5e20;
    --pb-green-light: #2e7d32;
    --pb-gold: #f9a825;
    --pb-gold-dark: #f57f17;
    --pb-bg: #f4f7f4;
    --pb-text: #1a2e1a;
    --pb-muted: #5a6b5a;
    --pb-card: #ffffff;
    --pb-shadow: 0 4px 20px rgba(27, 94, 32, 0.08);
}

* { box-sizing: border-box; }

body {
    margin: 0;
    font-family: 'Noto Sans KR', -apple-system, BlinkMacSystemFont, sans-serif;
    background: var(--pb-bg);
    color: var(--pb-text);
    font-size: 1.0625rem;
    line-height: 1.75;
}

.pb-nav {
    background: linear-gradient(135deg, var(--pb-green) 0%, var(--pb-green-light) 100%);
    box-shadow: 0 2px 12px rgba(0, 0, 0, 0.15);
}

.pb-nav .navbar-brand img {
    height: 36px;
    width: auto;
    display: block;
}

.pb-nav .nav-link {
    color: rgba(255, 255, 255, 0.9) !important;
    font-weight: 500;
    padding: 0.5rem 1rem !important;
    border-radius: 6px;
    transition: background 0.2s;
}

.pb-nav .nav-link:hover,
.pb-nav .nav-link.active {
    background: rgba(255, 255, 255, 0.15);
    color: #fff !important;
}

.pb-hero {
    background: linear-gradient(160deg, var(--pb-green) 0%, #0d3d12 60%, var(--pb-green-light) 100%);
    color: #fff;
    padding: 3.5rem 0 3rem;
    position: relative;
    overflow: hidden;
}

.pb-hero::after {
    content: '';
    position: absolute;
    right: -40px;
    top: -40px;
    width: 200px;
    height: 200px;
    border-radius: 50%;
    background: var(--pb-gold);
    opacity: 0.12;
}

.pb-hero h1 {
    font-weight: 800;
    font-size: clamp(1.75rem, 4vw, 2.5rem);
    margin-bottom: 0.75rem;
}

.pb-hero .lead {
    font-size: 1.125rem;
    opacity: 0.92;
    max-width: 640px;
    margin: 0 auto;
}

.pb-ball {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 36px;
    height: 36px;
    border-radius: 50%;
    background: linear-gradient(145deg, #fff 0%, #e8e8e8 100%);
    color: var(--pb-green);
    font-weight: 700;
    font-size: 0.9rem;
    box-shadow: inset -2px -2px 4px rgba(0,0,0,0.1), 2px 2px 6px rgba(0,0,0,0.15);
    margin: 3px;
}

.pb-ball.gold {
    background: linear-gradient(145deg, var(--pb-gold) 0%, var(--pb-gold-dark) 100%);
    color: #fff;
}

.pb-content {
    background: var(--pb-card);
    border-radius: 16px;
    padding: 2.5rem;
    margin: -2rem auto 2rem;
    position: relative;
    z-index: 1;
    box-shadow: var(--pb-shadow);
    max-width: 900px;
}

.pb-content h2 {
    color: var(--pb-green);
    font-weight: 700;
    font-size: 1.5rem;
    margin-top: 2rem;
    margin-bottom: 1rem;
    padding-bottom: 0.5rem;
    border-bottom: 2px solid rgba(27, 94, 32, 0.15);
}

.pb-content h2:first-of-type { margin-top: 0; }

.pb-content h3 {
    color: var(--pb-green-light);
    font-weight: 600;
    font-size: 1.2rem;
    margin-top: 1.5rem;
}

.pb-card-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
    gap: 1.25rem;
    margin: 1.5rem 0;
}

.pb-info-card {
    background: var(--pb-bg);
    border: 1px solid rgba(27, 94, 32, 0.12);
    border-radius: 12px;
    padding: 1.25rem;
    transition: transform 0.2s, box-shadow 0.2s;
}

.pb-info-card:hover {
    transform: translateY(-2px);
    box-shadow: var(--pb-shadow);
}

.pb-info-card h3 {
    margin-top: 0;
    font-size: 1.1rem;
}

.pb-info-card a {
    color: var(--pb-green);
    font-weight: 600;
    text-decoration: none;
}

.pb-info-card a:hover { text-decoration: underline; }

.pb-table {
    width: 100%;
    border-collapse: collapse;
    margin: 1rem 0;
    font-size: 0.95rem;
}

.pb-table th,
.pb-table td {
    border: 1px solid rgba(27, 94, 32, 0.15);
    padding: 0.75rem 1rem;
    text-align: left;
}

.pb-table th {
    background: var(--pb-green);
    color: #fff;
    font-weight: 600;
}

.pb-table tr:nth-child(even) { background: rgba(27, 94, 32, 0.04); }

.pb-toc {
    background: var(--pb-bg);
    border-left: 4px solid var(--pb-gold);
    padding: 1rem 1.25rem;
    border-radius: 0 8px 8px 0;
    margin-bottom: 1.5rem;
}

.pb-toc ul { margin: 0; padding-left: 1.25rem; }
.pb-toc a { color: var(--pb-green); }

.pb-faq details {
    border: 1px solid rgba(27, 94, 32, 0.12);
    border-radius: 8px;
    margin-bottom: 0.75rem;
    padding: 0.75rem 1rem;
    background: #fff;
}

.pb-faq summary {
    font-weight: 600;
    color: var(--pb-green);
    cursor: pointer;
}

.pb-footer {
    background: #1a2e1a;
    color: rgba(255, 255, 255, 0.85);
    padding: 2.5rem 0;
    margin-top: 3rem;
    font-size: 0.9rem;
}

.pb-footer a { color: var(--pb-gold); text-decoration: none; }
.pb-footer a:hover { text-decoration: underline; }

.pb-footer-links {
    list-style: none;
    padding: 0;
    margin: 0 0 1.5rem;
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 0.5rem 1.5rem;
}

.pb-badge {
    display: inline-block;
    background: var(--pb-gold);
    color: #1a2e1a;
    font-size: 0.75rem;
    font-weight: 700;
    padding: 0.2rem 0.6rem;
    border-radius: 4px;
    vertical-align: middle;
    margin-left: 0.5rem;
}

.pb-callout {
    background: rgba(27, 94, 32, 0.06);
    border: 1px solid rgba(27, 94, 32, 0.2);
    border-radius: 10px;
    padding: 1.25rem 1.5rem;
    margin: 1.25rem 0;
}

.pb-callout a {
    color: var(--pb-green);
    font-weight: 600;
}

.pb-meta-line {
    font-size: 0.85rem;
    color: var(--pb-muted);
    margin-bottom: 1.25rem;
    padding-bottom: 1rem;
    border-bottom: 1px solid rgba(27, 94, 32, 0.1);
}

@media (max-width: 768px) {
    .pb-content { padding: 1.5rem; margin-top: -1.5rem; }
    .pb-hero { padding: 2.5rem 0 2rem; }
}