*{box-sizing:border-box}:root{--primary:#2563eb;--primary-dark:#1d4ed8;--danger:#dc2626;--bg:#f6f7f9;--surface:#fff;--border:#e2e5e9;--text:#1f2430;--text-muted:#6b7280;font-family:-apple-system,Segoe UI,Roboto,Helvetica,Arial,sans-serif}body{background:var(--bg);color:var(--text);margin:0}h1{margin:0 0 1.2rem;font-size:1.6rem;font-weight:600}h2{margin:1.5rem 0 .8rem;font-size:1.1rem;font-weight:600}h3{margin:0 0 .3rem;font-size:1.05rem;font-weight:600}.muted{color:var(--text-muted)}.navbar{background:var(--surface);border-bottom:1px solid var(--border);justify-content:space-between;align-items:center;padding:.9rem 2rem;display:flex}.brand{color:var(--primary);font-size:1.15rem;font-weight:700;text-decoration:none}.nav-links{align-items:center;gap:1.2rem;display:flex}.nav-links a{color:var(--text);font-size:.92rem;text-decoration:none}.nav-links a:hover{color:var(--primary)}.nav-user{color:var(--text-muted);font-size:.85rem}.btn{border:1px solid var(--border);background:var(--surface);cursor:pointer;border-radius:6px;padding:.5rem 1rem;font-size:.88rem;transition:background .15s}.btn-primary{background:var(--primary);border-color:var(--primary);color:#fff}.btn-primary:hover{background:var(--primary-dark)}.btn-ghost{background:0 0}.btn-ghost:hover{background:var(--bg)}.btn-danger{color:var(--danger);border-color:var(--danger);background:0 0}.btn-danger:hover{background:#fef2f2}.btn-block{width:100%;margin-top:.6rem}.btn-sm{padding:.35rem .7rem;font-size:.8rem}.btn:disabled{opacity:.6;cursor:not-allowed}.auth-page{justify-content:center;align-items:center;min-height:calc(100vh - 62px);padding:1rem;display:flex}.auth-card{background:var(--surface);border:1px solid var(--border);border-radius:10px;width:100%;max-width:380px;padding:2rem}.auth-subtitle{color:var(--text-muted);margin:0 0 1.2rem;font-size:.88rem}.auth-switch{text-align:center;color:var(--text-muted);margin-top:1rem;font-size:.85rem}.auth-switch a{color:var(--primary);text-decoration:none}label{margin:.7rem 0 .3rem;font-size:.82rem;font-weight:500;display:block}input{border:1px solid var(--border);border-radius:6px;width:100%;padding:.55rem .7rem;font-size:.9rem}input:focus{border-color:var(--primary);outline:none}.alert{border-radius:6px;margin-bottom:.8rem;padding:.6rem .8rem;font-size:.85rem}.alert-error{color:#b91c1c;background:#fef2f2;border:1px solid #fecaca}.alert-success{color:#15803d;background:#f0fdf4;border:1px solid #bbf7d0}.page-container{max-width:1000px;margin:0 auto;padding:2rem}.page-loading{text-align:center;color:var(--text-muted);padding:3rem}.search-bar{gap:.6rem;margin-bottom:1.4rem;display:flex}.search-bar input{flex:1}.product-grid{grid-template-columns:repeat(auto-fill,minmax(220px,1fr));gap:1rem;display:grid}.product-card{background:var(--surface);border:1px solid var(--border);border-radius:10px;padding:1.1rem}.badge{color:var(--primary);background:#eef2ff;border-radius:20px;margin:.3rem 0;padding:.15rem .55rem;font-size:.75rem;display:inline-block}.price{margin:.4rem 0 .1rem;font-size:1.15rem;font-weight:600}.pagination{justify-content:center;align-items:center;gap:1rem;margin-top:1.6rem;display:flex}.product-form{background:var(--surface);border:1px solid var(--border);border-radius:10px;margin-bottom:1.6rem;padding:1.4rem}.form-row{gap:1rem;display:flex}.form-row>div{flex:1}.form-actions{gap:.6rem;margin-top:1rem;display:flex}.admin-table{border-collapse:collapse;background:var(--surface);border:1px solid var(--border);border-radius:10px;width:100%;overflow:hidden}.admin-table th,.admin-table td{text-align:left;border-bottom:1px solid var(--border);padding:.7rem 1rem;font-size:.88rem}.admin-table th{background:var(--bg);color:var(--text-muted);text-transform:uppercase;font-size:.78rem;font-weight:600}.table-actions{gap:.5rem;display:flex}