:root{--bg:#0f172a;--bg-elev:#111827;--bg-soft:#1f2937;--border:#334155;--text:#e2e8f0;--text-muted:#94a3b8;--accent:#60a5fa;--accent-strong:#2563eb;--danger:#f87171;--radius:12px;--radius-sm:8px}*{box-sizing:border-box}body,html{margin:0;padding:0;min-height:100%}body{font-family:system-ui,-apple-system,Segoe UI,Roboto,Ubuntu,Cantarell,Noto Sans,sans-serif;background:var(--bg);display:flex;flex-direction:column;min-height:100vh;line-height:1.55}a,body{color:var(--text)}a{text-decoration:none}a:hover{color:var(--accent)}.container{width:100%;max-width:1160px;margin:0 auto;padding:0 20px}.site-header{border-bottom:1px solid var(--border);background:rgba(15,23,42,.8);-webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px);position:-webkit-sticky;position:sticky;top:0;z-index:10}.header-inner{display:flex;align-items:center;justify-content:space-between;gap:24px;padding:14px 20px}.brand{display:inline-flex;align-items:center;gap:8px;font-weight:700;letter-spacing:-.3px;font-size:18px}.brand-mark{color:var(--accent);font-size:22px}.site-nav{display:flex;gap:16px;font-size:14px}.site-main{flex:1 1;padding:32px 20px 64px}.site-footer{border-top:1px solid var(--border);color:var(--text-muted);font-size:13px}.footer-inner{display:flex;justify-content:space-between;padding:20px}.hero{padding:32px 0 20px;max-width:780px}.hero h1{font-size:clamp(30px,4vw,40px);margin:0 0 10px;letter-spacing:-.6px;line-height:1.1}.hero p{color:var(--text-muted);font-size:16px}.search-form{display:flex;gap:8px;margin:20px 0 8px}.search-form input{flex:1 1;padding:12px 14px;border-radius:var(--radius-sm);border:1px solid var(--border);background:var(--bg-elev);color:var(--text);font-size:15px}.search-form button{padding:12px 18px;border-radius:var(--radius-sm);border:1px solid var(--accent);background:var(--accent);color:#0b1220;font-weight:600;cursor:pointer}.search-form button:hover{background:var(--accent-strong);border-color:var(--accent-strong);color:#fff}.smart-search{position:relative}.search-suggestions{position:absolute;z-index:20;left:0;right:0;margin-top:4px;background:var(--bg-elev);border:1px solid var(--border);border-radius:var(--radius-sm);box-shadow:0 18px 40px rgba(0,0,0,.35);overflow:hidden}.search-suggestions a{display:grid;grid-gap:2px;gap:2px;padding:10px 12px;border-bottom:1px solid var(--border)}.search-suggestions a:last-child{border-bottom:0}.search-suggestions a:hover{background:var(--bg-soft);color:var(--text)}.search-suggestions strong{font-size:14px}.search-suggestions small,.search-suggestions span{color:var(--text-muted);font-size:12px}.grid{display:grid;grid-gap:16px;gap:16px}.grid-categories{grid-template-columns:repeat(auto-fill,minmax(220px,1fr))}.grid-providers{grid-template-columns:repeat(auto-fill,minmax(280px,1fr))}.card{display:flex;flex-direction:column;gap:10px;padding:18px;background:var(--bg-elev);border:1px solid var(--border);border-radius:var(--radius);transition:transform .1s ease,border-color .1s ease}.card:hover{transform:translateY(-1px);border-color:var(--accent)}.card h3{margin:0;font-size:18px}.card p{margin:0;color:var(--text-muted);font-size:14px}.card .meta{display:flex;flex-wrap:wrap;gap:6px}.card .meta,.chip{font-size:12px;color:var(--text-muted)}.chip{display:inline-flex;align-items:center;padding:2px 8px;border:1px solid var(--border);border-radius:999px;background:var(--bg-soft)}.section-head{display:flex;justify-content:space-between;align-items:baseline;margin:32px 0 14px}.section-head h2{margin:0;font-size:22px}.section-head a{color:var(--accent);font-size:14px}.layout{display:grid;grid-template-columns:260px 1fr;grid-gap:28px;gap:28px;margin-top:16px}@media (max-width:860px){.layout{grid-template-columns:1fr}}.filters{background:var(--bg-elev);border:1px solid var(--border);border-radius:var(--radius);padding:18px;position:-webkit-sticky;position:sticky;top:80px;max-height:calc(100vh - 96px);overflow:auto}.filters h4{margin:0 0 8px;font-size:13px;letter-spacing:.08em;text-transform:uppercase;color:var(--text-muted)}.filters .filter-group{margin-bottom:16px}.filters label{display:flex;align-items:center;gap:8px;font-size:14px;color:var(--text);padding:4px 0;cursor:pointer}.filters .count{margin-left:auto;color:var(--text-muted);font-size:12px}.filters .category-tree{display:flex;flex-direction:column;gap:10px}.filters .category-parent{display:flex;flex-direction:column;gap:4px}.filters .category-children{margin-left:24px;border-left:1px solid var(--border);padding-left:10px}.filters .filter-select{width:100%;padding:10px 12px;border-radius:var(--radius-sm);border:1px solid var(--border);background:var(--bg-soft);color:var(--text);font-size:14px}.filters .filter-actions{display:flex;gap:8px;margin-top:8px}.filters .filter-actions button{border:1px solid var(--border);background:transparent;color:var(--text);border-radius:var(--radius-sm);padding:6px 10px;font-size:12px;cursor:pointer}.filters .filter-actions button:hover{border-color:var(--accent);color:var(--accent)}.listing-head{display:flex;justify-content:space-between;align-items:baseline;margin:4px 0 16px}.listing-head .total{color:var(--text-muted);font-size:14px}.detail-header{display:flex;justify-content:space-between;align-items:flex-start;gap:20px;margin-bottom:18px;flex-wrap:wrap}.detail-header h1{margin:0;font-size:28px;letter-spacing:-.3px}.detail-header .chips{display:flex;flex-wrap:wrap;gap:6px;margin-top:8px}.detail-grid{display:grid;grid-template-columns:2fr 1fr;grid-gap:28px;gap:28px}@media (max-width:860px){.detail-grid{grid-template-columns:1fr}}.prose{color:var(--text);font-size:16px;line-height:1.7}.prose h2{font-size:18px;margin:24px 0 8px}.sidebar-card{background:var(--bg-elev);border:1px solid var(--border);border-radius:var(--radius);padding:18px}.sidebar-card h3{margin:0 0 12px;font-size:15px;letter-spacing:.04em;color:var(--text-muted);text-transform:uppercase}.sidebar-card dl{display:grid;grid-template-columns:auto 1fr;grid-gap:4px 12px;gap:4px 12px;margin:0;font-size:14px}.sidebar-card dt{color:var(--text-muted)}.sidebar-card dd{margin:0}.sidebar-card a{color:var(--accent);word-break:break-word}.empty{padding:40px 18px;border:1px dashed var(--border);border-radius:var(--radius);text-align:center;color:var(--text-muted)}.auth-form{max-width:420px;margin:40px auto;background:var(--bg-elev);border:1px solid var(--border);border-radius:var(--radius);padding:28px;display:flex;flex-direction:column;gap:14px}.auth-form h1{margin:0;font-size:24px}.auth-form label{display:flex;flex-direction:column;gap:6px;font-size:14px;color:var(--text-muted)}.auth-form input{background:var(--bg-soft);color:var(--text);border:1px solid var(--border);border-radius:var(--radius-sm);padding:10px 12px;font-size:15px}.auth-form input:focus{outline:2px solid var(--accent);outline-offset:0}.auth-form button[type=submit]{background:var(--accent-strong);color:white;border:none;border-radius:var(--radius-sm);padding:12px 16px;font-weight:600;cursor:pointer}.auth-form button[type=submit]:disabled{opacity:.6;cursor:not-allowed}.auth-error{color:var(--danger);font-size:14px}.auth-hint{color:var(--text-muted);font-size:14px}.error-alert{display:flex;align-items:center;gap:10px;background:rgba(248,113,113,.12);border:1px solid rgba(248,113,113,.35);color:var(--text);border-radius:var(--radius-sm);padding:10px 12px;font-size:14px;line-height:1.45}.error-alert-icon{color:var(--danger);font-size:16px;line-height:1}.error-alert-text{flex:1 1;word-break:break-word}.error-alert-retry{background:transparent;border:1px solid rgba(248,113,113,.5);color:var(--danger);padding:4px 10px;border-radius:var(--radius-sm);cursor:pointer;font-size:13px;font-weight:500}.error-alert-retry:hover{background:rgba(248,113,113,.15)}.error-alert-action{font-size:13px}@media (max-width:480px){.error-alert{flex-wrap:wrap}.error-alert-retry{margin-left:auto}}.contact-cta{background:var(--accent-strong);color:white;border:none;border-radius:var(--radius-sm);padding:10px 16px;font-weight:600;cursor:pointer;display:inline-flex;gap:8px;align-items:center;text-decoration:none}.contact-cta:hover{color:white;filter:brightness(1.1)}.chat-layout{display:grid;grid-template-columns:280px 1fr;grid-gap:16px;gap:16px;min-height:calc(100vh - 200px)}@media (max-width:820px){.chat-layout{grid-template-columns:1fr}}.chat-inbox{background:var(--bg-elev);border:1px solid var(--border);border-radius:var(--radius);padding:14px;display:flex;flex-direction:column;gap:8px;overflow-y:auto;max-height:70vh}.chat-inbox h2{margin:0 0 4px;font-size:14px;color:var(--text-muted);text-transform:uppercase;letter-spacing:.04em}.chat-inbox-item{display:block;padding:10px 12px;border-radius:var(--radius-sm);background:var(--bg-soft);border:1px solid transparent}.chat-inbox-item:hover{border-color:var(--border)}.chat-inbox-item.active{border-color:var(--accent)}.chat-inbox-item strong{display:block;color:var(--text);font-size:14px}.chat-inbox-item small{color:var(--text-muted);font-size:12px}.chat-panel{display:flex;flex-direction:column;background:var(--bg-elev);border:1px solid var(--border);border-radius:var(--radius);min-height:400px}.chat-header{padding:14px 18px;border-bottom:1px solid var(--border);display:flex;justify-content:space-between;align-items:center}.chat-header h2{margin:0;font-size:18px}.chat-messages{flex:1 1;padding:18px;display:flex;flex-direction:column;gap:10px;overflow-y:auto;max-height:60vh}.chat-msg{max-width:72%;padding:10px 12px;border-radius:var(--radius);background:var(--bg-soft);border:1px solid var(--border);font-size:14px;line-height:1.5;white-space:pre-wrap;word-break:break-word}.chat-msg.mine{align-self:flex-end;background:var(--accent-strong);color:white;border-color:transparent}.chat-msg time{display:block;margin-top:4px;color:rgba(255,255,255,.75);font-size:11px}.chat-msg:not(.mine) time{color:var(--text-muted)}.chat-form{border-top:1px solid var(--border);padding:12px;display:flex;gap:8px}.chat-form textarea{flex:1 1;background:var(--bg-soft);color:var(--text);border:1px solid var(--border);border-radius:var(--radius-sm);padding:10px 12px;font-family:inherit;font-size:14px;min-height:44px;resize:vertical}.chat-form button{background:var(--accent-strong);color:white;border:none;border-radius:var(--radius-sm);padding:10px 18px;font-weight:600;cursor:pointer}.chat-form button:disabled{opacity:.6;cursor:not-allowed}.chat-empty{padding:48px;text-align:center;color:var(--text-muted)}.grid-table{width:100%;border-collapse:collapse;margin-top:12px;font-size:14px}.grid-table td,.grid-table th{padding:10px 12px;border-bottom:1px solid var(--border)}.grid-table th{text-align:left;font-weight:600;color:var(--text-muted);background:var(--bg-soft)}.grid-table tr:last-child td{border-bottom:0}.ranked-list{list-style:none;padding:0;margin:8px 0 0}.ranked-list li{display:flex;justify-content:space-between;align-items:center;gap:12px;padding:10px 12px;border-bottom:1px solid var(--border);counter-increment:rank}.ranked-list li:before{content:counter(rank) ".";color:var(--text-muted);min-width:24px;font-feature-settings:"tnum";font-variant-numeric:tabular-nums}.ranked-list{counter-reset:rank}.ranked-query{flex:1 1;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.ranked-count{color:var(--text-muted);font-feature-settings:"tnum";font-variant-numeric:tabular-nums}.breadcrumbs{display:flex;flex-wrap:wrap;gap:8px;font-size:14px;margin-bottom:12px}.breadcrumbs,.breadcrumbs a{color:var(--text-muted)}.breadcrumbs a:hover{color:var(--accent-strong)}.breadcrumbs [aria-current=page]{color:var(--text)}.breadcrumbs .sep{opacity:.5}.filters-head{display:flex;justify-content:space-between;align-items:center;margin-bottom:12px}.filter-clear{font-size:13px;color:var(--accent-strong);background:none;border:0;cursor:pointer;padding:0}.filter-clear:hover{text-decoration:underline}