:root{--bg: #0f172a;--surface: #1e293b;--surface-2: #273549;--border: #334155;--text: #e2e8f0;--muted: #94a3b8;--primary: #22c55e;--primary-dark: #16a34a;--danger: #f87171;font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Helvetica,Arial,sans-serif}*{box-sizing:border-box}body{margin:0;background:var(--bg);color:var(--text)}.app-shell{min-height:100vh;display:flex;flex-direction:column}.navbar{display:flex;align-items:center;justify-content:space-between;padding:16px 24px;border-bottom:1px solid var(--border);background:var(--surface)}.navbar-brand{color:var(--text);text-decoration:none;font-weight:700;font-size:1.1rem}.navbar-user{display:flex;align-items:center;gap:12px}.app-main{flex:1;max-width:960px;width:100%;margin:0 auto;padding:24px 16px 64px}.auth-card,.card{background:var(--surface);border:1px solid var(--border);border-radius:12px;padding:24px;max-width:420px;margin:40px auto}.card{margin:16px 0;max-width:none}form label{display:block;margin-bottom:14px;font-size:.9rem;color:var(--muted)}form input,form select{display:block;width:100%;margin-top:6px;padding:10px 12px;border-radius:8px;border:1px solid var(--border);background:var(--bg);color:var(--text);font-size:1rem}.btn{border:none;border-radius:8px;padding:10px 18px;font-size:.95rem;font-weight:600;cursor:pointer;background:var(--surface-2);color:var(--text)}.btn:hover:not(:disabled){filter:brightness(1.1)}.btn:disabled{opacity:.5;cursor:not-allowed}.btn-primary{background:var(--primary);color:#052e16}.btn-primary:hover:not(:disabled){background:var(--primary-dark)}.btn-ghost{background:transparent;border:1px solid var(--border)}.btn-small{padding:6px 12px;font-size:.85rem}.error-text{color:var(--danger);font-size:.9rem}.muted{color:var(--muted)}.tab-switch{display:flex;gap:4px;border-bottom:1px solid var(--border);margin-bottom:20px}.tab{background:none;border:none;color:var(--muted);padding:10px 16px;cursor:pointer;font-size:.95rem;border-bottom:2px solid transparent}.tab.active{color:var(--text);border-bottom-color:var(--primary)}.league-header{display:flex;align-items:center;justify-content:space-between;margin-bottom:24px;flex-wrap:wrap;gap:12px}.league-header h1{margin:0 0 4px;font-size:1.4rem}.stat-row{display:flex;gap:16px;margin-bottom:24px;flex-wrap:wrap}.stat-card{background:var(--surface);border:1px solid var(--border);border-radius:10px;padding:16px 20px;flex:1;min-width:160px;display:flex;flex-direction:column;gap:6px}.stat-card.highlight{border-color:var(--primary)}.stat-label{color:var(--muted);font-size:.8rem;text-transform:uppercase;letter-spacing:.04em}.stat-value{font-size:1.4rem;font-weight:700}.table{width:100%;border-collapse:collapse;background:var(--surface);border:1px solid var(--border);border-radius:10px;overflow:hidden}.table th,.table td{text-align:left;padding:10px 14px;border-bottom:1px solid var(--border);font-size:.9rem}.table th{color:var(--muted);font-weight:600;font-size:.8rem;text-transform:uppercase;letter-spacing:.03em}.table tbody tr:last-child td{border-bottom:none}.row-self{background:#22c55e14}.gain-positive{color:var(--primary)}.gain-negative{color:var(--danger)}.badge{background:var(--surface-2);color:var(--muted);padding:4px 10px;border-radius:999px;font-size:.8rem}.marketplace-controls{display:flex;gap:12px;margin-bottom:16px;flex-wrap:wrap}.marketplace-controls input,.marketplace-controls select{padding:8px 12px;border-radius:8px;border:1px solid var(--border);background:var(--surface);color:var(--text)}.league-setup{max-width:480px;margin:20px auto}