:root{
	--bg:#f8fafc;
	--panel:#ffffff;
	--text:#0f172a;
	--muted:#64748b;
	--border:#e2e8f0;
	--brand:#2563eb;
	--brand-600:#1d4ed8;
}
[data-theme="dark"]{
	--bg:#0f172a;
	--panel:#1e293b;
	--text:#f1f5f9;
	--muted:#94a3b8;
	--border:#334155;
	--brand:#38bdf8;
	--brand-600:#0ea5e9;
}
*{box-sizing:border-box}
html,body{margin:0;padding:0;font-family:'Inter',system-ui,-apple-system,Segoe UI,Roboto,Arial,sans-serif;color:var(--text);background:var(--bg)}
.container{max-width:1100px;margin:0 auto;padding:24px}
.small{font-size:12px;color:var(--muted)}
.site-header{border-bottom:1px solid var(--border);background:var(--panel);position:relative}
.site-header .container{display:flex;justify-content:space-between;align-items:center}
.site-header .brand{margin:0;font-size:20px;display:flex;align-items:center;gap:10px}
.brand-logo{height:28px;width:auto;display:block}
.site-header .brand a{text-decoration:none;color:var(--text)}
.site-footer{border-top:1px solid var(--border);background:var(--panel);padding:24px 0}
.footer-content{display:flex;justify-content:space-between;align-items:flex-start;gap:32px;flex-wrap:wrap}
.footer-left,.footer-right{display:flex;flex-direction:column;gap:8px}
.footer-line{margin:0;font-size:12px;color:var(--muted);line-height:1.5}
.footer-line a{color:var(--brand);text-decoration:none}
.footer-line a:hover{color:var(--brand-600);text-decoration:underline}
@media (max-width: 640px){
	.footer-content{flex-direction:column;gap:16px}
	.footer-left,.footer-right{width:100%}
}

/* Main Navigation */
.main-nav{position:relative;display:flex;align-items:center;gap:12px}
.nav-search-container{position:relative;flex:1;max-width:300px}
.nav-search-input{width:100%;padding:8px 12px;background:var(--bg);border:1px solid var(--border);border-radius:8px;color:var(--text);font-size:14px;font-family:inherit;transition:border-color .15s ease}
.nav-search-input:focus{outline:none;border-color:var(--brand)}
.nav-search-dropdown{display:none;position:absolute;top:100%;left:0;right:0;margin-top:4px;background:var(--panel);border:1px solid var(--border);border-radius:8px;box-shadow:0 4px 12px rgba(0,0,0,0.15);z-index:1002;max-height:300px;overflow-y:auto}
[data-theme="dark"] .nav-search-dropdown{box-shadow:0 4px 12px rgba(0,0,0,0.4)}
.nav-search-item{padding:10px 16px;color:var(--text);font-size:14px;cursor:pointer;transition:background .15s ease}
.nav-search-item:hover,.nav-search-item-selected{background:var(--bg)}
.nav-search-item:first-child{border-radius:8px 8px 0 0}
.nav-search-item:last-child{border-radius:0 0 8px 8px}
@media (max-width: 767px){
	.nav-search-container{max-width:200px}
}
.nav-toggle{display:flex;align-items:center;justify-content:center;padding:8px 12px;background:transparent;border:1px solid var(--border);border-radius:8px;color:var(--text);cursor:pointer;font-size:18px;line-height:1;transition:background .15s ease;flex-shrink:0}
.nav-toggle:hover{background:var(--bg)}
@media (min-width: 768px){
	.nav-toggle{display:none}
}
.nav-menu{display:none;flex-direction:column;position:absolute;top:100%;right:0;margin-top:8px;min-width:200px;background:var(--panel);border:1px solid var(--border);border-radius:8px;box-shadow:0 4px 12px rgba(0,0,0,0.15);z-index:1000;max-height:calc(100vh - 100px);overflow-y:auto}
[data-theme="dark"] .nav-menu{box-shadow:0 4px 12px rgba(0,0,0,0.4)}
@media (min-width: 768px){
	.nav-menu{display:flex;position:static;flex-direction:row;align-items:center;gap:4px;background:transparent;border:none;box-shadow:none;min-width:auto;max-height:none;overflow:visible;margin:0}
}
.nav-menu-open{display:flex}
.nav-item{display:block;padding:10px 16px;color:var(--text);text-decoration:none;font-size:14px;font-weight:500;transition:background .15s ease;white-space:nowrap}
.nav-item:hover{background:var(--bg)}
@media (min-width: 768px){
	.nav-item{padding:8px 12px;border-radius:8px}
	.nav-item:hover{background:var(--bg)}
}
.nav-item-dropdown{position:relative}
.nav-item-link{display:flex;align-items:center;gap:6px;width:100%;padding:10px 16px;background:transparent;border:none;color:var(--text);text-decoration:none;font-size:14px;font-weight:500;cursor:pointer;transition:background .15s ease;white-space:nowrap}
@media (min-width: 768px){
	.nav-item-link{padding:8px 12px;border-radius:8px}
}
.nav-item-link:hover{background:var(--bg)}
.nav-dropdown-arrow{font-size:10px;transition:transform .15s ease}
.nav-item-dropdown.nav-dropdown-open .nav-dropdown-arrow{transform:rotate(180deg)}
.nav-dropdown-menu{position:absolute;top:100%;left:0;margin-top:4px;min-width:200px;background:var(--panel);border:1px solid var(--border);border-radius:8px;box-shadow:0 4px 12px rgba(0,0,0,0.15);opacity:0;visibility:hidden;transform:translateY(-8px);transition:opacity .15s ease,transform .15s ease,visibility .15s ease;z-index:1001;max-height:400px;overflow-y:auto}
[data-theme="dark"] .nav-dropdown-menu{box-shadow:0 4px 12px rgba(0,0,0,0.4)}
@media (min-width: 768px){
	.nav-dropdown-menu{left:auto;right:0}
}
.nav-dropdown-menu-open{opacity:1;visibility:visible;transform:translateY(0)}
.nav-dropdown-item{display:block;padding:10px 16px;color:var(--text);text-decoration:none;font-size:14px;transition:background .15s ease}
.nav-dropdown-item:hover{background:var(--bg)}
.nav-dropdown-item:first-child{border-radius:8px 8px 0 0}
.nav-dropdown-divider{height:1px;background:var(--border);margin:4px 0}
.section{margin:24px 0}
.class-header{position:relative;background-size:cover;background-position:center;background-repeat:no-repeat;border-radius:12px;overflow:hidden;padding:0;margin:24px 0}
.class-header-overlay{position:absolute;inset:0;background:linear-gradient(to bottom, rgba(15,23,42,0.75), rgba(15,23,42,0.85));}
.class-header-content{position:relative;padding:32px;color:#fff;z-index:1}
.class-header-back{color:#fff !important;opacity:0.9}
.class-header-back:hover{color:#fff !important;opacity:1;text-decoration:underline}
.class-header-title{color:#fff;margin-top:12px}
.muted{color:var(--muted)}
.mt-2{margin-top:8px}
main a:not(.card):not(.btn){color:var(--brand);text-decoration:none}
main a:not(.card):not(.btn):hover{color:var(--brand-600);text-decoration:underline}
footer a{color:var(--brand);text-decoration:none}
footer a:hover{color:var(--brand-600);text-decoration:underline}
.back{color:var(--brand);text-decoration:none}
.back:hover{color:var(--brand-600)}

.card-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(220px,1fr));gap:16px}
.card{display:block;background:var(--panel);border:1px solid var(--border);padding:16px;border-radius:12px;text-decoration:none;color:inherit;transition:box-shadow .15s ease, transform .05s ease}
.card:hover{box-shadow:0 6px 18px rgba(2,6,23,0.08);transform:translateY(-1px)}
.card-title{font-weight:600}
.card-subtitle{color:var(--muted);margin-top:4px}

.summary-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(160px,1fr));gap:12px}
.summary-item{background:var(--panel);border:1px solid var(--border);border-radius:12px;padding:16px}
.summary-item .label{font-size:12px;color:var(--muted)}
.summary-item .value{font-size:20px;font-weight:700;margin-top:4px}

.table-wrap{overflow:auto;background:var(--panel);border:1px solid var(--border);border-radius:12px}
.table{width:100%;border-collapse:collapse;min-width:560px}
.table th,.table td{padding:12px 14px;border-bottom:1px solid var(--border);text-align:left}
.table thead th{position:sticky;top:0;background:var(--panel);z-index:1}
.table tbody tr:hover{background:#f3f6fb}
[data-theme="dark"] .table tbody tr:hover{background:#334155}
.mono{font-variant-numeric:tabular-nums}
.team-name{color:var(--muted);font-size:13px;margin-left:6px;font-weight:400}
.robot-stats-table{border-collapse:collapse;width:100%}
.robot-stats-table td{padding:4px 12px 4px 0;vertical-align:top;font-size:14px}
.robot-stats-table td:first-child{white-space:nowrap}
.robot-stats-table td:nth-child(2){padding-right:20px}
.sortable{user-select:none;position:relative;padding-right:28px}
.sortable:hover{background:var(--bg)}
.sort-indicator{position:absolute;right:8px;top:50%;transform:translateY(-50%);font-size:12px;opacity:0.5;pointer-events:none}
.sortable.sort-active .sort-indicator{opacity:1}

/* Badges */
.badge{display:inline-block;font-size:12px;font-weight:600;border-radius:999px;padding:4px 10px;line-height:1}
.badge-s{background:#d4af37;color:#111} /* Gold */
.badge-a{background:#c0c0c0;color:#111} /* Silver */
.badge-b{background:#cd7f32;color:#111} /* Bronze */
.badge-c{background:#e5e7eb;color:#111} /* Light gray */
.badge-d{background:#9ca3af;color:#111} /* Medium gray */
.badge-f{background:#374151;color:#fff} /* Dark gray */
.badge-newcomer{background:#fbbf24;color:#111;font-size:11px;padding:2px 6px;border-radius:4px;display:inline-block} /* Yellow for new bots */
.badge-waitlist{background:#f59e0b;color:#111;font-size:11px;padding:2px 6px;border-radius:4px;display:inline-block} /* Orange for waitlist */

/* Forms */
.form-group{margin-bottom:20px}
.form-group label{display:block;font-weight:500;margin-bottom:6px;color:var(--text)}
.form-group select,.form-group textarea,.form-group input[type="text"],.form-group input[type="url"]{width:100%;padding:10px 12px;border:1px solid var(--border);border-radius:8px;font-family:inherit;font-size:14px;background:var(--panel);color:var(--text);resize:vertical}
.form-group select:focus,.form-group textarea:focus,.form-group input[type="text"]:focus,.form-group input[type="url"]:focus{outline:none;border-color:var(--brand);box-shadow:0 0 0 3px rgba(37,99,235,0.1)}
.form-group textarea{min-height:120px;font-family:monospace;font-size:13px;line-height:1.5}
.form-group input[type="url"]{font-family:monospace;font-size:13px}
.checkbox-group{display:flex;flex-direction:column;gap:4px}
.checkbox-group label{display:flex;align-items:center;gap:8px;cursor:pointer;font-weight:normal}
.checkbox-group input[type="checkbox"]{width:18px;height:18px;cursor:pointer}
.checkbox-help{font-size:12px;color:var(--muted);margin-left:26px}
.btn{padding:10px 20px;border:none;border-radius:8px;font-size:14px;font-weight:500;cursor:pointer;transition:background .15s ease;background:var(--brand);color:#fff;text-decoration:none;display:inline-block}
.btn:hover{background:var(--brand-600)}
[data-theme="dark"] .btn{background:var(--brand)}
[data-theme="dark"] .btn:hover{background:var(--brand-600)}
.btn-secondary{background:var(--panel);color:var(--text);border:1px solid var(--border)}
.btn-secondary:hover{background:var(--bg);border-color:var(--brand)}
[data-theme="dark"] .btn-secondary{background:var(--panel);color:var(--text)}
[data-theme="dark"] .btn-secondary:hover{background:var(--bg)}

/* Insights */
.insights-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(240px,1fr));gap:16px}
.insight-card{background:var(--panel);border:1px solid var(--border);border-radius:12px;padding:20px}
.insight-label{font-size:12px;color:var(--muted);margin-bottom:8px;font-weight:500}
.insight-value{font-size:20px;font-weight:700;margin-bottom:4px;color:var(--text)}
.insight-value a{color:var(--brand);text-decoration:none}
.insight-value a:hover{text-decoration:underline}
.insight-detail{font-size:14px;color:var(--muted);margin-top:4px}
.vs-text{margin:0 8px;color:var(--muted);font-weight:400}
.insight-list{display:flex;flex-direction:column;gap:12px;margin-top:12px}
.insight-list-item{display:flex;align-items:center;gap:12px;padding:8px 0;border-bottom:1px solid var(--border)}
.insight-list-item:last-child{border-bottom:none}
.insight-list-rank{font-weight:600;color:var(--muted);min-width:24px;font-size:14px}
.insight-list-name{flex:1;font-size:16px;font-weight:600;color:var(--text)}
.insight-list-name a{color:var(--brand);text-decoration:none}
.insight-list-name a:hover{text-decoration:underline}
.insight-list-detail{font-size:14px;color:var(--muted);font-variant-numeric:tabular-nums}
.btn-primary{background:var(--brand);color:#fff}
.btn-primary:hover{background:var(--brand-600)}
.alert{padding:12px 16px;border-radius:8px;margin-bottom:20px}
.alert-error{background:#fee2e2;border:1px solid #fecaca;color:#991b1b}
[data-theme="dark"] .alert-error{background:#7f1d1d;border-color:#991b1b;color:#fecaca}
.results-table-wrap{margin-top:20px}

/* Tournament Bracket Styles */
.bracket-container{display:flex;flex-direction:column;gap:12px;margin-top:16px}
.bracket-matchup{display:flex;align-items:center;gap:12px;padding:12px 16px;background:var(--bg);border:1px solid var(--border);border-radius:8px;flex-wrap:wrap}
.bracket-seed{font-size:12px;font-weight:600;color:var(--muted);min-width:32px;text-align:center}
.bracket-competitor{flex:1;min-width:120px;font-weight:500}
.bracket-competitor.bracket-bye{color:var(--muted);font-style:italic}
.bracket-vs{font-size:12px;color:var(--muted);font-weight:600;padding:0 8px}
@media (max-width: 640px){
	.bracket-matchup{flex-direction:column;align-items:stretch;gap:8px}
	.bracket-competitor{text-align:center}
	.bracket-vs{order:2;padding:4px 0}
	.bracket-seed{order:1;text-align:center}
}

/* FAQ */
.faq-list{display:flex;flex-direction:column;gap:24px}
.faq-item{background:var(--panel);border:1px solid var(--border);border-radius:12px;padding:24px}
.faq-question{font-size:18px;font-weight:600;margin:0 0 12px 0;color:var(--text)}
.faq-answer{color:var(--text);line-height:1.6}
.faq-answer p{margin:0}
.faq-answer p + p{margin-top:12px}
.faq-answer a{color:var(--brand);text-decoration:none}
.faq-answer a:hover{text-decoration:underline}

/* Info Box (kept for potential future use) */
.info-box{display:flex;align-items:flex-start;gap:12px;background:#eff6ff;border:1px solid #bfdbfe;border-radius:12px;padding:16px;margin-bottom:20px}
[data-theme="dark"] .info-box{background:#1e3a8a;border-color:#3b82f6}
.theme-toggle{color:var(--brand);text-decoration:none}
.theme-toggle:hover{text-decoration:underline}
.info-icon{font-size:20px;flex-shrink:0;margin-top:2px}
.info-content{flex:1}
.info-list{margin:0;padding-left:20px;color:var(--text)}
.info-list li{margin-bottom:8px;line-height:1.5}
.info-list li:last-child{margin-bottom:0}

/* Head-to-Head */
.robot-selectors{display:flex;align-items:flex-end;gap:20px;flex-wrap:wrap}
.robot-selectors .form-group{flex:1;min-width:200px}
.vs-divider{font-size:20px;font-weight:600;color:var(--muted);padding-bottom:28px}
.h2h-form{margin-bottom:30px}
.matchup-card{background:var(--panel);border:1px solid var(--border);border-radius:12px;padding:24px}
.robot-matchup{display:flex;align-items:center;justify-content:center;gap:24px;margin-bottom:24px;flex-wrap:wrap}
.robot-info{text-align:center}
.robot-name{font-size:18px;font-weight:600;margin-bottom:8px}
.robot-rating{font-size:24px;font-weight:700;color:var(--brand)}
.vs-divider-large{font-size:32px;font-weight:700;color:var(--muted)}
.matchup-stats{display:grid;grid-template-columns:repeat(auto-fit,minmax(180px,1fr));gap:16px;border-top:1px solid var(--border);padding-top:20px;margin-bottom:24px}
.stat-item{text-align:center}
.stat-label{font-size:12px;color:var(--muted);margin-bottom:6px}
.stat-value{font-size:20px;font-weight:600}
.stat-probability{color:var(--brand);font-size:24px}
.probability-bar-container{margin-top:24px;border-top:1px solid var(--border);padding-top:24px}
.probability-bar-label{display:flex;justify-content:space-between;margin-bottom:8px;font-size:14px;font-weight:600}
.probability-bar{display:flex;height:48px;border-radius:8px;overflow:hidden;position:relative}
.probability-bar-left{background:#dc2626;display:flex;align-items:center;justify-content:flex-start;padding-left:12px;transition:width .3s ease}
.probability-bar-right{background:#2563eb;display:flex;align-items:center;justify-content:flex-end;padding-right:12px;transition:width .3s ease}
[data-theme="dark"] .probability-bar-left{background:#ef4444}
[data-theme="dark"] .probability-bar-right{background:#3b82f6}
.probability-bar-text{color:#fff;font-weight:700;font-size:16px;white-space:nowrap}


/* Thumbnail Cards */
.thumb-card{position:relative;display:block;padding:0;overflow:hidden}
.thumb-card .thumb-img{display:block;width:100%;height:140px;object-fit:cover}
.thumb-card .thumb-overlay{position:absolute;inset:0;background:linear-gradient(to top, rgba(15,23,42,0.85), rgba(15,23,42,0.0));}
.thumb-card .thumb-content{position:absolute;left:12px;bottom:12px;right:12px;color:#fff}
.thumb-card .thumb-title{font-weight:700;margin-bottom:6px}
.thumb-card .thumb-robots{margin-bottom:6px;font-size:12px;line-height:1.4;opacity:0.95}
.thumb-card .thumb-robot-name{white-space:nowrap}
.thumb-card .thumb-sub{font-size:11px;opacity:0.85;margin-top:4px}

/* Fight History */
.event-group{margin-bottom:32px}
.event-meta{display:flex;flex-wrap:wrap;gap:12px;font-size:13px;color:var(--muted);margin:6px 0 14px}
.event-meta span{display:flex;align-items:center;gap:4px}
.event-title{font-size:18px;font-weight:600;margin-bottom:12px;color:var(--text)}
.fight-result{display:inline-block;padding:4px 8px;border-radius:4px;font-weight:600;font-size:12px}
.fight-result.win{background:#10b981;color:#fff}
.fight-result.loss{background:#ef4444;color:#fff}
[data-theme="dark"] .fight-result.win{background:#059669}
[data-theme="dark"] .fight-result.loss{background:#dc2626}
.rating-up{color:#10b981}
.rating-down{color:#ef4444}
[data-theme="dark"] .rating-up{color:#34d399}
[data-theme="dark"] .rating-down{color:#f87171}
.fight-date{font-size:13px;color:var(--muted)}

/* Chart responsive sizing */
.chart-scroll{overflow-x:auto; -webkit-overflow-scrolling: touch}
.chart-wrap{min-width:900px; height:260px}
.chart-canvas{width:100% !important; height:100% !important; display:block}
@media (min-width: 640px){
	.chart-wrap{height:220px}
}
@media (min-width: 1024px){
	.chart-wrap{height:180px}
}

/* Image Modal */
.image-modal{display:none;position:fixed;z-index:10000;left:0;top:0;width:100%;height:100%;background-color:rgba(0,0,0,0.9);align-items:center;justify-content:center;padding:20px;box-sizing:border-box}
.image-modal-content{max-width:90%;max-height:90%;width:auto;height:auto;border-radius:8px;box-shadow:0 4px 20px rgba(0,0,0,0.5);object-fit:contain}
.image-modal-close{position:absolute;top:20px;right:40px;color:#fff;font-size:40px;font-weight:bold;cursor:pointer;line-height:1;transition:opacity 0.2s ease;z-index:10001}
.image-modal-close:hover{opacity:0.7}
@media (max-width: 640px){
	.image-modal-close{top:10px;right:20px;font-size:30px}
	.image-modal-content{max-width:95%;max-height:95%}
}