:root{--color-bg:#f4f6f8;--color-surface:#fff;--color-border:#e2e5e9;--color-text:#1c2530;--color-text-muted:#6b7684;--color-primary:#0d6efd;--color-primary-dark:#0b5ed7;--color-success:#1d8a4c;--color-success-bg:#e6f4ea;--color-danger:#c62828;--color-danger-bg:#fdecea;--color-warning:#a06b00;--color-warning-bg:#fff4dd;--radius:10px;--shadow:0 1px 2px rgba(16,24,40,.06),0 1px 3px rgba(16,24,40,.08)}*{box-sizing:border-box}body,html{padding:0;margin:0}body{font-family:-apple-system,Segoe UI,Roboto,Helvetica,Arial,sans-serif;background:var(--color-bg);color:var(--color-text)}a{color:var(--color-primary);text-decoration:none}.navbar{background:#10233f;color:#fff;padding:14px 24px;display:flex;align-items:center;justify-content:space-between}.navbar .brand{font-weight:700}.navbar .brand small{display:block;font-weight:400;font-size:.7rem;color:#9db6d8}.navbar nav{display:flex;gap:18px;align-items:center;font-size:.9rem}.navbar nav a{color:#cfe0f5}.navbar nav a:hover{color:#fff}.navbar button{background:none;border:1px solid hsla(0,0%,100%,.3);color:#fff;padding:6px 14px;border-radius:6px;cursor:pointer}.container{max-width:960px;margin:0 auto;padding:28px 20px}.card{background:var(--color-surface);border:1px solid var(--color-border);border-radius:var(--radius);box-shadow:var(--shadow);padding:22px;margin-bottom:20px}.card h1,.card h2{margin-top:0}.grid{display:grid;grid-gap:16px;gap:16px}.grid-2{grid-template-columns:repeat(2,1fr)}.grid-3{grid-template-columns:repeat(3,1fr)}@media (max-width:760px){.grid-2,.grid-3{grid-template-columns:1fr}}.app-footer{text-align:center;padding:16px 20px 26px;font-size:.76rem;color:var(--color-text-muted)}.producto-card{border:1px solid var(--color-border);border-radius:var(--radius);padding:18px;text-align:center}.producto-card .precio{font-size:1.3rem;font-weight:700;color:var(--color-primary);margin:8px 0}.btn{display:inline-flex;align-items:center;justify-content:center;gap:6px;padding:10px 18px;border-radius:8px;border:1px solid transparent;background:var(--color-primary);color:#fff;font-size:.92rem;font-weight:600;cursor:pointer}.btn:hover{background:var(--color-primary-dark)}.btn:disabled{opacity:.5;cursor:not-allowed}.btn-secondary{background:var(--color-surface);color:var(--color-text);border-color:var(--color-border)}.btn-block{width:100%}.form-group{margin-bottom:14px}.form-group label{display:block;font-size:.85rem;font-weight:600;margin-bottom:5px;color:var(--color-text-muted)}.form-group input,.form-group select,.form-group textarea{width:100%;padding:9px 11px;border:1px solid var(--color-border);border-radius:7px;font-size:.92rem;font-family:inherit}.form-row{display:flex;gap:12px}.form-row>*{flex:1 1}table{width:100%;border-collapse:collapse;font-size:.9rem}td,th{text-align:left;padding:9px 10px;border-bottom:1px solid var(--color-border)}th{color:var(--color-text-muted);text-transform:uppercase}.badge,th{font-weight:600;font-size:.76rem}.badge{display:inline-block;padding:2px 10px;border-radius:999px}.badge-success{background:var(--color-success-bg);color:var(--color-success)}.badge-warning{background:var(--color-warning-bg);color:var(--color-warning)}.badge-muted{background:#eef0f3;color:var(--color-text-muted)}.alert{padding:12px 16px;border-radius:8px;font-size:.88rem;margin-bottom:16px}.alert-danger{background:var(--color-danger-bg);color:var(--color-danger)}.alert-success{background:var(--color-success-bg);color:var(--color-success)}.alert-warning{background:var(--color-warning-bg);color:var(--color-warning)}.muted{color:var(--color-text-muted)}.hero,.text-center{text-align:center}.hero{padding:40px 20px}.hero h1{font-size:1.8rem;margin-bottom:8px}