:root{
  --morado:#4a3b6b; --morado2:#6b5b95; --verde:#2e8b74;
  --gris:#f4f4f7; --borde:#d8d8e0; --txt:#222;
}
*{box-sizing:border-box}
body{margin:0;font-family:system-ui,Segoe UI,Roboto,Arial,sans-serif;color:var(--txt);background:var(--gris)}

/* Login */
.login-bg{display:flex;align-items:center;justify-content:center;min-height:100vh;padding:20px}
.login-card{background:#fff;max-width:460px;width:100%;padding:32px;border-radius:14px;box-shadow:0 10px 40px rgba(0,0,0,.12);text-align:center}
.login-membrete{max-width:100%;height:auto;margin-bottom:14px}
.login-card h1{font-size:20px;color:var(--morado);margin:6px 0}
.login-card .sub{color:#666;font-size:14px;margin-bottom:20px}
.login-card form{text-align:left}
.login-card label{display:block;margin-bottom:14px;font-size:14px;font-weight:600;color:#444}
.login-card input{width:100%;padding:11px;margin-top:5px;border:1px solid var(--borde);border-radius:8px;font-size:15px}
.login-card button{width:100%;padding:12px;background:var(--morado);color:#fff;border:0;border-radius:8px;font-size:15px;font-weight:600;cursor:pointer}
.login-card button:hover{background:var(--morado2)}
.foot{margin-top:22px;font-size:11px;color:#999}
.btn-link{color:var(--morado);text-decoration:none;font-weight:600}

/* Alertas */
.alert{padding:12px 14px;border-radius:8px;margin:12px 0;font-size:14px;text-align:left}
.alert.ok{background:#e6f6ef;color:#1c6b52;border:1px solid #b6e3d0}
.alert.err{background:#fdeaea;color:#a12626;border:1px solid #f3c2c2}

/* Topbar */
.topbar{display:flex;justify-content:space-between;align-items:center;background:#fff;padding:10px 20px;box-shadow:0 2px 8px rgba(0,0,0,.06);flex-wrap:wrap;gap:10px}
.topbar-logo{max-height:52px;width:auto}
.topbar-right{display:flex;align-items:center;gap:14px}
.estado{font-size:12px;font-weight:700;padding:4px 10px;border-radius:20px}
.estado.bor{background:#fff3d6;color:#8a6d1a}
.estado.fin{background:#e6f6ef;color:#1c6b52}

/* Formulario */
.wrap{max-width:960px;margin:24px auto;padding:0 16px}
.wrap h1{font-size:22px;color:var(--morado)}
.autosave{font-size:13px;color:#888;margin:8px 0}
.autosave.ok{color:#1c6b52}
.autosave.err{color:#a12626}
.nota{font-size:13px;color:#666}

.bloque{background:#fff;border-radius:12px;padding:20px;margin-bottom:18px;box-shadow:0 2px 10px rgba(0,0,0,.05)}
.bloque h2{font-size:15px;color:var(--morado);margin:0 0 16px;border-bottom:2px solid var(--gris);padding-bottom:8px}
.circ h2{color:var(--verde)}

.grid{display:grid;grid-template-columns:repeat(12,1fr);gap:12px}
.grid label{display:flex;flex-direction:column;font-size:13px;font-weight:600;color:#555}
.grid input,.grid select{margin-top:5px;padding:9px;border:1px solid var(--borde);border-radius:7px;font-size:14px;background:#fff;font-family:inherit}
.grid input:focus,.grid select:focus{outline:none;border-color:var(--morado2);box-shadow:0 0 0 3px rgba(107,91,149,.15)}
.col-3{grid-column:span 3}.col-4{grid-column:span 4}.col-5{grid-column:span 5}
.col-6{grid-column:span 6}.col-8{grid-column:span 8}.col-12{grid-column:span 12}
.esp-label{font-size:13px;font-weight:600;color:#555;margin:14px 0 6px}

.firma-preview-wrap{display:flex;align-items:center;gap:16px;margin:10px 0;padding:10px;background:var(--gris);border-radius:8px}
.firma-preview{max-height:70px;max-width:220px;background:#fff;border:1px solid var(--borde);border-radius:4px;padding:4px}
.chk-quitar{display:flex;align-items:center;gap:6px;font-size:13px;font-weight:600;color:#a12626}
.chk-quitar input{width:auto;margin:0}

.acciones{display:flex;gap:12px;justify-content:flex-end;margin:20px 0 60px;flex-wrap:wrap}
.btn-pri{background:var(--verde);color:#fff;border:0;padding:13px 26px;border-radius:9px;font-size:15px;font-weight:700;cursor:pointer}
.btn-pri:hover{background:#256b58}
.btn-sec{background:#fff;color:var(--morado);border:2px solid var(--morado);padding:11px 24px;border-radius:9px;font-size:15px;font-weight:600;cursor:pointer}
.btn-desc{display:inline-block;margin-left:10px;background:var(--verde);color:#fff;padding:8px 16px;border-radius:8px;text-decoration:none;font-weight:600}
fieldset{border:0;padding:0;margin:0}
.bloqueado input{background:#f7f7fa;color:#555}

@media (max-width:640px){
  .grid{grid-template-columns:repeat(6,1fr)}
  .col-3,.col-4,.col-5,.col-6,.col-8{grid-column:span 6}
}