:root{--bg-primary: #0f1117;--bg-secondary: #1a1d27;--bg-card: #1e2130;--bg-hover: #252838;--border: #2d3044;--text-primary: #e4e6f0;--text-secondary: #8b8fa3;--text-muted: #5c6078;--accent: #6366f1;--accent-hover: #818cf8;--success: #22c55e;--warning: #f59e0b;--danger: #ef4444;--danger-hover: #dc2626;--info: #3b82f6;--rarity-common: #9ca3af;--rarity-uncommon: #22c55e;--rarity-rare: #3b82f6;--rarity-epic: #a855f7;--rarity-legendary: #f59e0b}*{margin:0;padding:0;box-sizing:border-box}body{font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,sans-serif;background:var(--bg-primary);color:var(--text-primary);line-height:1.5}a{color:var(--accent);text-decoration:none}a:hover{color:var(--accent-hover)}.app-layout{display:flex;min-height:100vh}.sidebar{width:240px;background:var(--bg-secondary);border-right:1px solid var(--border);padding:20px 0;position:fixed;top:0;left:0;bottom:0;overflow-y:auto}.sidebar-title{font-size:18px;font-weight:700;padding:0 20px 20px;border-bottom:1px solid var(--border);margin-bottom:12px;color:var(--accent)}.sidebar nav a{display:flex;align-items:center;gap:10px;padding:10px 20px;color:var(--text-secondary);font-size:14px;transition:all .15s}.sidebar nav a:hover,.sidebar nav a.active{background:var(--bg-hover);color:var(--text-primary)}.sidebar nav a.active{border-right:3px solid var(--accent)}.main-content{flex:1;margin-left:240px;padding:24px 32px}.page-header{display:flex;justify-content:space-between;align-items:center;margin-bottom:24px}.page-title{font-size:24px;font-weight:700}.card{background:var(--bg-card);border:1px solid var(--border);border-radius:8px;padding:20px;margin-bottom:16px}.card-title{font-size:14px;color:var(--text-secondary);margin-bottom:4px}.card-value{font-size:28px;font-weight:700}.stat-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(200px,1fr));gap:16px;margin-bottom:24px}.table-wrapper{overflow-x:auto}table{width:100%;border-collapse:collapse}thead th{text-align:left;padding:10px 12px;font-size:12px;font-weight:600;text-transform:uppercase;color:var(--text-muted);border-bottom:1px solid var(--border)}tbody td{padding:10px 12px;font-size:14px;border-bottom:1px solid var(--border)}tbody tr:hover{background:var(--bg-hover)}.btn{display:inline-flex;align-items:center;gap:6px;padding:8px 16px;border-radius:6px;font-size:14px;font-weight:500;cursor:pointer;border:none;transition:all .15s}.btn-primary{background:var(--accent);color:#fff}.btn-primary:hover{background:var(--accent-hover)}.btn-danger{background:var(--danger);color:#fff}.btn-danger:hover{background:var(--danger-hover)}.btn-secondary{background:var(--bg-hover);color:var(--text-primary);border:1px solid var(--border)}.btn-secondary:hover{background:var(--border)}.btn-sm{padding:4px 10px;font-size:12px}.btn:disabled{opacity:.5;cursor:not-allowed}.form-group{margin-bottom:16px}.form-group label{display:block;font-size:13px;font-weight:500;color:var(--text-secondary);margin-bottom:6px}input,select,textarea{width:100%;padding:8px 12px;background:var(--bg-primary);border:1px solid var(--border);border-radius:6px;color:var(--text-primary);font-size:14px}input:focus,select:focus,textarea:focus{outline:none;border-color:var(--accent)}textarea{resize:vertical;min-height:80px}.badge{display:inline-block;padding:2px 8px;border-radius:4px;font-size:12px;font-weight:600}.badge-active{background:#22c55e26;color:var(--success)}.badge-sold{background:#3b82f626;color:var(--info)}.badge-cancelled{background:#ef444426;color:var(--danger)}.badge-pending{background:#f59e0b26;color:var(--warning)}.badge-expired{background:#5c607826;color:var(--text-muted)}.badge-accepted{background:#22c55e26;color:var(--success)}.badge-declined{background:#ef444426;color:var(--danger)}.badge-completed{background:#22c55e26;color:var(--success)}.badge-common{background:#9ca3af26;color:var(--rarity-common)}.badge-uncommon{background:#22c55e26;color:var(--rarity-uncommon)}.badge-rare{background:#3b82f626;color:var(--rarity-rare)}.badge-epic{background:#a855f726;color:var(--rarity-epic)}.badge-legendary{background:#f59e0b26;color:var(--rarity-legendary)}.text-muted{color:var(--text-secondary)}.text-success{color:var(--success)}.text-danger{color:var(--danger)}.text-warning{color:var(--warning)}.mt-2{margin-top:8px}.mt-4{margin-top:16px}.mb-4{margin-bottom:16px}.flex{display:flex}.flex-wrap{flex-wrap:wrap}.gap-2{gap:8px}.gap-4{gap:16px}.items-center{align-items:center}.justify-between{justify-content:space-between}.pagination{display:flex;align-items:center;justify-content:center;gap:8px;margin-top:16px}.login-wrapper{display:flex;align-items:center;justify-content:center;min-height:100vh}.login-card{background:var(--bg-card);border:1px solid var(--border);border-radius:12px;padding:40px;width:100%;max-width:400px}.login-card h1{font-size:24px;margin-bottom:8px;color:var(--accent)}.login-card p{color:var(--text-secondary);margin-bottom:24px}.error-text{color:var(--danger);font-size:13px;margin-top:8px}.modal-overlay{position:fixed;top:0;right:0;bottom:0;left:0;background:#0009;display:flex;align-items:center;justify-content:center;z-index:100}.modal{background:var(--bg-card);border:1px solid var(--border);border-radius:12px;padding:24px;width:100%;max-width:500px;max-height:80vh;overflow-y:auto}.modal h2{font-size:18px;margin-bottom:16px}.modal-actions{display:flex;justify-content:flex-end;gap:8px;margin-top:20px}.empty-state{text-align:center;padding:48px 24px;color:var(--text-secondary)}.empty-state h3{font-size:18px;margin-bottom:8px;color:var(--text-primary)}