:root {
    --primary: #1e293b;
    --accent: #3b82f6;
    --minor: #f59e0b;
    --major: #f97316;
    --grave: #ef4444;
    --bg: #f8fafc;
    --card: #ffffff;
    --text: #1e293b;
    --text-muted: #64748b;
    --border: #e2e8f0;
    --shadow: 0 1px 3px 0 rgb(0 0 0 / 0.1), 0 1px 2px -1px rgb(0 0 0 / 0.1);
    --shadow-lg: 0 10px 15px -3px rgb(0 0 0 / 0.1), 0 4px 6px -4px rgb(0 0 0 / 0.1);
}

* { margin: 0; padding: 0; box-sizing: border-box; }
body { font-family: 'Inter', sans-serif; background: var(--bg); color: var(--text); line-height: 1.6; }
body.modal-open { overflow: hidden; }

/* Compact Header */
.header {
    background: var(--primary);
    color: white;
    padding: 0.75rem 0;
    position: sticky;
    top: 0;
    z-index: 100;
    box-shadow: var(--shadow);
}
.header-content {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 1.5rem;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 1rem;
}
.logo { display: flex; align-items: center; gap: 0.5rem; }
.logo-icon {
    width: 32px; height: 32px; background: var(--accent);
    border-radius: 8px; display: flex; align-items: center; justify-content: center;
    font-size: 0.875rem;
}
.logo-text { font-size: 1.125rem; font-weight: 800; letter-spacing: -0.025em; }
.header-center { flex: 1; text-align: center; }
.header h1 { font-size: 1.125rem; font-weight: 700; letter-spacing: -0.025em; line-height: 1.2; }
.header-badge {
    background: rgba(255,255,255,0.1); padding: 0.375rem 0.75rem;
    border-radius: 9999px; font-size: 0.75rem; font-weight: 500; white-space: nowrap;
}

/* Controls */
.controls { max-width: 1200px; margin: 1rem auto 0; padding: 0 1.5rem; position: relative; z-index: 50; }
.controls-inner {
    background: var(--card); border-radius: 16px; padding: 1.25rem;
    box-shadow: var(--shadow-lg); border: 1px solid var(--border);
}
.search-box { position: relative; margin-bottom: 1rem; }
.search-box i {
    position: absolute; left: 1rem; top: 50%; transform: translateY(-50%);
    color: var(--text-muted); font-size: 1rem;
}
.search-box input {
    width: 100%; padding: 0.75rem 1rem 0.75rem 2.75rem;
    border: 2px solid var(--border); border-radius: 10px;
    font-size: 0.9375rem; font-family: inherit; background: var(--bg); transition: all 0.2s;
}
.search-box input:focus { outline: none; border-color: var(--accent); background: white; }
.filters { display: flex; flex-direction: column; gap: 0.75rem; }
.filter-row { display: flex; flex-wrap: wrap; gap: 0.5rem; align-items: center; }
.filter-label {
    font-size: 0.75rem; font-weight: 600; color: var(--text-muted);
    text-transform: uppercase; letter-spacing: 0.05em; white-space: nowrap;
}
.filter-group { display: flex; flex-wrap: wrap; gap: 0.5rem; flex: 1; }
.filter-btn {
    padding: 0.5rem 0.875rem; border: 2px solid var(--border); border-radius: 9999px;
    background: white; cursor: pointer; font-family: inherit; font-size: 0.8125rem;
    font-weight: 500; transition: all 0.2s; display: inline-flex; align-items: center; gap: 0.4rem;
}
.filter-btn:hover { border-color: var(--accent); color: var(--accent); }
.filter-btn.active { background: var(--accent); color: white; border-color: var(--accent); }
.filter-btn.severity-minor.active { background: var(--minor); border-color: var(--minor); }
.filter-btn.severity-major.active { background: var(--major); border-color: var(--major); }
.filter-btn.severity-grave.active { background: var(--grave); border-color: var(--grave); }
.results-count { font-size: 0.8125rem; color: var(--text-muted); font-weight: 500; margin-left: auto; }

/* Main */
.main { max-width: 1200px; margin: 1.5rem auto; padding: 0 1.5rem; }
.category { margin-bottom: 1.5rem; animation: fadeIn 0.4s ease-out; }
@keyframes fadeIn { from { opacity: 0; transform: translateY(10px); } to { opacity: 1; transform: translateY(0); } }
.category-header {
    display: flex; align-items: center; gap: 0.75rem; margin-bottom: 1rem;
    padding: 0.75rem 0; border-bottom: 2px solid var(--border); cursor: pointer;
    transition: color 0.2s; user-select: none;
}
.category-header:hover { color: var(--accent); }
.category-header i.fa-chevron-down {
    font-size: 0.875rem; transition: transform 0.3s; margin-left: auto;
}
.category-header.collapsed i.fa-chevron-down { transform: rotate(-90deg); }
.category-title { font-size: 1.125rem; font-weight: 700; flex: 1; }
.category-count {
    background: var(--bg); padding: 0.25rem 0.625rem; border-radius: 9999px;
    font-size: 0.8125rem; font-weight: 600; color: var(--text-muted);
}
.rules-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(320px, 1fr)); gap: 0.875rem; }
.rule-card {
    background: var(--card); border-radius: 12px; padding: 1.25rem;
    border: 1px solid var(--border); box-shadow: var(--shadow);
    transition: all 0.2s; position: relative; overflow: hidden; cursor: pointer;
}
.rule-card:hover { box-shadow: var(--shadow-lg); transform: translateY(-2px); border-color: var(--accent); }
.rule-card::before {
    content: ''; position: absolute; left: 0; top: 0; bottom: 0; width: 4px;
    border-radius: 12px 0 0 12px;
}
.rule-card.severity-minor::before { background: var(--minor); }
.rule-card.severity-major::before { background: var(--major); }
.rule-card.severity-grave::before { background: var(--grave); }
.rule-header { display: flex; justify-content: space-between; align-items: flex-start; margin-bottom: 0.625rem; gap: 0.5rem; }
.rule-id {
    font-family: monospace; font-size: 0.8125rem; font-weight: 700; color: var(--accent);
    background: rgba(59, 130, 246, 0.1); padding: 0.25rem 0.5rem; border-radius: 6px;
}
.severity-badge {
    padding: 0.2rem 0.625rem; border-radius: 9999px; font-size: 0.6875rem;
    font-weight: 700; text-transform: uppercase; letter-spacing: 0.05em;
}
.severity-minor .severity-badge { background: rgba(245, 158, 11, 0.1); color: var(--minor); }
.severity-major .severity-badge { background: rgba(249, 115, 22, 0.1); color: var(--major); }
.severity-grave .severity-badge { background: rgba(239, 68, 68, 0.1); color: var(--grave); }
.rule-title { font-weight: 600; font-size: 0.9375rem; margin-bottom: 0.375rem; line-height: 1.4; color: var(--text); }
.rule-desc { font-size: 0.8125rem; color: var(--text-muted); line-height: 1.6; display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; }
.rule-card:hover .rule-desc { -webkit-line-clamp: unset; }

/* Modal */
.modal-overlay {
    position: fixed; inset: 0; background: rgba(0,0,0,0.5); z-index: 1000;
    display: flex; align-items: center; justify-content: center; padding: 1.5rem;
    opacity: 0; visibility: hidden; transition: all 0.3s ease; backdrop-filter: blur(4px);
}
.modal-overlay.active { opacity: 1; visibility: visible; }
.modal {
    background: var(--card); border-radius: 20px; max-width: 640px; width: 100%;
    max-height: 90vh; overflow-y: auto; box-shadow: 0 25px 50px -12px rgb(0 0 0 / 0.25);
    transform: scale(0.95) translateY(10px); transition: all 0.3s ease;
}
.modal-overlay.active .modal { transform: scale(1) translateY(0); }
.modal-header {
    padding: 1.5rem 1.5rem 0; display: flex; justify-content: space-between;
    align-items: flex-start; gap: 1rem;
}
.modal-severity-strip { height: 6px; width: 100%; margin-top: 1rem; }
.modal-severity-strip.minor { background: var(--minor); }
.modal-severity-strip.major { background: var(--major); }
.modal-severity-strip.grave { background: var(--grave); }
.modal-body { padding: 1.5rem; }
.modal-rule-id {
    font-family: monospace; font-size: 0.875rem; font-weight: 700; color: var(--accent);
    background: rgba(59, 130, 246, 0.1); padding: 0.375rem 0.625rem; border-radius: 8px;
    display: inline-block; margin-bottom: 0.75rem;
}
.modal-title { font-size: 1.5rem; font-weight: 700; line-height: 1.3; margin-bottom: 1rem; color: var(--text); }
.modal-severity-badge {
    display: inline-flex; align-items: center; gap: 0.5rem;
    padding: 0.5rem 1rem; border-radius: 9999px; font-size: 0.875rem;
    font-weight: 700; text-transform: uppercase; margin-bottom: 1.25rem;
}
.modal-severity-badge.minor { background: rgba(245, 158, 11, 0.1); color: var(--minor); }
.modal-severity-badge.major { background: rgba(249, 115, 22, 0.1); color: var(--major); }
.modal-severity-badge.grave { background: rgba(239, 68, 68, 0.1); color: var(--grave); }
.modal-section { margin-bottom: 1.25rem; }
.modal-section-label {
    font-size: 0.75rem; font-weight: 700; text-transform: uppercase;
    letter-spacing: 0.05em; color: var(--text-muted); margin-bottom: 0.5rem;
}
.modal-section-content { font-size: 1rem; line-height: 1.7; color: var(--text); }
.modal-penalty-box {
    background: var(--bg); border-radius: 12px; padding: 1rem 1.25rem; margin-top: 1rem;
}
.modal-penalty-title {
    font-size: 0.875rem; font-weight: 700; margin-bottom: 0.5rem;
    display: flex; align-items: center; gap: 0.5rem;
}
.modal-penalty-list { font-size: 0.9375rem; line-height: 1.8; color: var(--text-muted); }
.modal-penalty-list strong { color: var(--text); }
.modal-close {
    width: 36px; height: 36px; border-radius: 10px; border: none;
    background: var(--bg); color: var(--text-muted); cursor: pointer;
    display: flex; align-items: center; justify-content: center;
    font-size: 1rem; transition: all 0.2s; flex-shrink: 0;
}
.modal-close:hover { background: var(--border); color: var(--text); }
.modal-category-tag {
    display: inline-flex; align-items: center; gap: 0.375rem;
    font-size: 0.8125rem; color: var(--text-muted); margin-bottom: 0.75rem;
}

/* Empty State */
.empty-state { text-align: center; padding: 4rem 2rem; color: var(--text-muted); }
.empty-state i { font-size: 3rem; margin-bottom: 1rem; opacity: 0.5; }
.empty-state h3 { font-size: 1.25rem; margin-bottom: 0.5rem; color: var(--text); }

/* Penalty Table */
.penalty-section { max-width: 1200px; margin: 2rem auto; padding: 0 1.5rem; }
.penalty-card {
    background: var(--card); border-radius: 16px; padding: 1.5rem;
    box-shadow: var(--shadow); border: 1px solid var(--border);
}
.penalty-card h2 { font-size: 1.25rem; margin-bottom: 1.25rem; display: flex; align-items: center; gap: 0.75rem; }
.penalty-table { width: 100%; border-collapse: collapse; font-size: 0.875rem; }
.penalty-table th {
    text-align: left; padding: 0.875rem; font-weight: 600; color: var(--text-muted);
    text-transform: uppercase; font-size: 0.6875rem; letter-spacing: 0.05em;
    border-bottom: 2px solid var(--border);
}
.penalty-table td { padding: 0.875rem; border-bottom: 1px solid var(--border); vertical-align: top; }
.penalty-table tr:last-child td { border-bottom: none; }
.penalty-severity { font-weight: 700; display: flex; align-items: center; gap: 0.5rem; }
.dot { width: 10px; height: 10px; border-radius: 50%; display: inline-block; }
.dot-minor { background: var(--minor); }
.dot-major { background: var(--major); }
.dot-grave { background: var(--grave); }

/* Footer */
.footer { text-align: center; padding: 1.5rem; color: var(--text-muted); font-size: 0.8125rem; margin-top: 1.5rem; border-top: 1px solid var(--border); }

/* Responsive */
@media (max-width: 768px) {
    .header-content { padding: 0 1rem; }
    .header h1 { font-size: 0.9375rem; }
    .logo-text { font-size: 1rem; }
    .rules-grid { grid-template-columns: 1fr; }
    .filter-row { flex-direction: column; align-items: flex-start; }
    .filter-group { width: 100%; }
    .results-count { margin-left: 0; }
    .modal { margin: 0.5rem; }
}
.category-rules.collapsed { display: none; }
::-webkit-scrollbar { width: 8px; }
::-webkit-scrollbar-track { background: var(--bg); }
::-webkit-scrollbar-thumb { background: var(--border); border-radius: 4px; }
::-webkit-scrollbar-thumb:hover { background: var(--text-muted); }