/* =====================================================================
   MAILER · estilos generales del panel
   ===================================================================== */
:root{
  --tinta:#0f1115;
  --texto:#1d1d1f;
  --gris:#6b7280;
  --suave:#f6f7f9;
  --linea:#e5e8ee;
  --blanco:#fff;
  --ok:#128a3b;
  --err:#c9252d;
  --azul:#0a84ff;
  --sombra:0 1px 2px rgba(16,24,40,.04),0 8px 24px rgba(16,24,40,.06);
  --radio:14px;
}
*{box-sizing:border-box}
html,body{margin:0;padding:0}
body{
  font-family:-apple-system,BlinkMacSystemFont,'Segoe UI','Montserrat',Helvetica,Arial,sans-serif;
  background:var(--suave); color:var(--texto);
  font-size:14.5px; line-height:1.55; -webkit-font-smoothing:antialiased;
}
h1{font-size:24px;margin:0;letter-spacing:-.02em}
h2{font-size:17px;margin:0;letter-spacing:-.01em}
h3{font-size:15px;margin:0}
h4{font-size:12px;margin:0;text-transform:uppercase;letter-spacing:.08em;color:var(--gris);font-weight:600}
a{color:inherit}
code{background:#eef0f4;padding:1px 5px;border-radius:5px;font-size:.9em}
.sp{flex:1}
.mut{color:var(--gris)}
.xs{font-size:12px;color:var(--gris)}
.mini{font-size:12.5px;color:var(--gris)}
.hint{font-size:12px;color:var(--gris);margin:8px 0 0}

/* ---------------- Barra superior ---------------- */
.topbar{
  position:sticky;top:0;z-index:40;display:flex;align-items:center;gap:12px;
  padding:10px 18px;background:rgba(255,255,255,.86);backdrop-filter:saturate(180%) blur(14px);
  border-bottom:1px solid var(--linea);
}
.topbar .logo{display:flex;align-items:center;gap:9px;font-weight:700;letter-spacing:-.01em}
.topbar .logo i{font-style:normal;color:var(--tinta)}

/* ---------------- Botones ---------------- */
.btn{
  display:inline-flex;align-items:center;gap:8px;border:1px solid var(--tinta);
  background:var(--tinta);color:#fff;padding:10px 18px;border-radius:999px;
  font-size:14px;font-weight:600;cursor:pointer;text-decoration:none;line-height:1;
  transition:transform .12s ease,opacity .12s ease,background .12s ease;
}
.btn:hover{opacity:.9}
.btn:active{transform:scale(.98)}
.btn:disabled,.btn[disabled]{opacity:.4;cursor:not-allowed}
.btn.gh{background:#fff;color:var(--tinta);border-color:var(--linea)}
.btn.gh:hover{border-color:#c9cfda}
.btn.sm{padding:8px 14px;font-size:13px}
.btn.rojo{background:var(--err);border-color:var(--err)}
.ico{
  display:inline-grid;place-items:center;width:36px;height:36px;border-radius:50%;
  border:1px solid var(--linea);background:#fff;color:var(--texto);cursor:pointer;text-decoration:none;flex:none;
}
.ico:hover{background:#f3f5f8}
.ico.rojo{color:var(--err)}
button.ico{padding:0}

/* ---------------- Estructura ---------------- */
.shell{display:grid;grid-template-columns:232px 1fr;min-height:calc(100vh - 57px)}
.side{padding:18px 12px;border-right:1px solid var(--linea);background:#fff}
.side .lbl{font-size:11px;text-transform:uppercase;letter-spacing:.09em;color:#9aa1ad;margin:14px 10px 6px;font-weight:700}
.side a{
  display:flex;align-items:center;gap:11px;padding:9px 11px;border-radius:10px;
  text-decoration:none;color:#3d444f;font-weight:500;margin-bottom:2px;
}
.side a i{width:18px;text-align:center;color:#8b93a1}
.side a:hover{background:#f3f5f8}
.side a.on{background:var(--tinta);color:#fff}
.side a.on i{color:#fff}
.main{padding:24px 26px 60px;max-width:1180px}
.head{display:flex;align-items:flex-start;gap:14px;margin-bottom:18px;flex-wrap:wrap}

/* ---------------- Tarjetas ---------------- */
.card{background:#fff;border:1px solid var(--linea);border-radius:var(--radio);box-shadow:var(--sombra)}
.card.p{padding:18px}
.grid{display:grid;gap:16px}
.grid.g2{grid-template-columns:repeat(2,1fr)}
.grid.g3{grid-template-columns:repeat(3,1fr)}
.grid.g4{grid-template-columns:repeat(4,1fr)}
.stat{padding:16px 18px}
.stat .n{font-size:26px;font-weight:700;letter-spacing:-.02em}
.stat .t{font-size:12.5px;color:var(--gris)}
.vacio{display:grid;place-items:center;gap:10px;text-align:center;color:var(--gris);font-size:13.5px}
.vacio i{font-size:22px;color:#c3c9d4}

/* ---------------- Etiquetas y avisos ---------------- */
.tag{display:inline-block;padding:3px 10px;border-radius:999px;font-size:11.5px;font-weight:600;background:#eef0f4;color:#525a67}
.tag.ok{background:#e6f6ec;color:var(--ok)}
.tag.err,.tag.no{background:#fdeaea;color:var(--err)}
.tag.esp{background:#fff5e5;color:#a25e00}
.tag.info{background:#e8f1ff;color:#0a5bd3}
.aviso{padding:12px 14px;border-radius:12px;font-size:13.5px;margin-bottom:14px;border:1px solid}
.aviso.ok{background:#eefaf1;border-color:#c9ecd5;color:#0f6b31}
.aviso.err{background:#fdefef;border-color:#f6cfcf;color:#a31f26}

/* ---------------- Formularios ---------------- */
.campo{margin-bottom:14px}
.campo label{display:block;font-size:12.5px;font-weight:600;color:#454c58;margin-bottom:6px}
input[type=text],input[type=email],input[type=password],input[type=url],input[type=number],
input[type=date],input[type=time],select,textarea{
  width:100%;padding:10px 12px;border:1px solid var(--linea);border-radius:10px;background:#fff;
  font:inherit;font-size:14px;color:var(--texto);outline:none;transition:border .15s,box-shadow .15s;
}
input:focus,select:focus,textarea:focus{border-color:#b9c1cf;box-shadow:0 0 0 3px rgba(15,17,21,.06)}
textarea{min-height:90px;resize:vertical}
.fila{display:grid;grid-template-columns:1fr 1fr;gap:12px}
.ck{display:flex;align-items:center;gap:8px;font-size:13.5px}
.ck input{width:auto}

/* ---------------- Tablas ---------------- */
.tabla{width:100%;border-collapse:collapse;font-size:13.5px}
.tabla th{
  text-align:left;font-size:11.5px;text-transform:uppercase;letter-spacing:.06em;color:#8b93a1;
  padding:10px 12px;border-bottom:1px solid var(--linea);font-weight:700;
}
.tabla td{padding:11px 12px;border-bottom:1px solid #f1f3f6;vertical-align:middle}
.tabla tr:last-child td{border-bottom:0}
.tabla tr:hover td{background:#fafbfc}

/* ---------------- Modales ---------------- */
.modal{
  position:fixed;inset:0;background:rgba(15,17,21,.42);z-index:80;
  display:none;align-items:center;justify-content:center;padding:20px;overflow:auto;
}
.modal.on{display:flex}
.modal .box{
  background:#fff;border-radius:18px;padding:22px;width:100%;max-width:560px;
  box-shadow:0 30px 70px rgba(15,17,21,.28);max-height:92vh;overflow:auto;
}

/* ---------------- Login ---------------- */
.login{max-width:380px;margin:12vh auto;padding:26px}
.login h1{font-size:22px;margin-bottom:4px}

/* ---------------- Responsivo ---------------- */
@media(max-width:1000px){
  .grid.g3,.grid.g4{grid-template-columns:repeat(2,1fr)}
}
@media(max-width:820px){
  .shell{grid-template-columns:1fr}
  .side{display:flex;gap:6px;overflow:auto;border-right:0;border-bottom:1px solid var(--linea);padding:10px}
  .side .lbl{display:none}
  .side a{white-space:nowrap;margin:0}
  .main{padding:18px 14px 50px}
  .grid.g2{grid-template-columns:1fr}
}
@media(max-width:600px){
  .grid.g3,.grid.g4{grid-template-columns:1fr}
  .fila{grid-template-columns:1fr}
  h1{font-size:20px}
}