/* ============================================================
   POS UPTECH  -  estilos.css
   Paleta azul UPTECH, limpia estilo Treinta
   ============================================================ */
:root{
  --azul:#2563EB; --azul-d:#1E3A8A; --cyan:#0EA5E9;
  --ink:#0F1B2E; --muted:#5C6B82; --line:#E4EAF2;
  --bg:#F4F7FC; --card:#FFFFFF; --ok:#16A34A; --warn:#D97706; --dang:#DC2626;
  --radio:14px; --sombra:0 10px 30px -18px rgba(15,27,46,.35);
}
*{box-sizing:border-box;margin:0;padding:0}
body{font-family:'Segoe UI',system-ui,-apple-system,Roboto,sans-serif;
  background:var(--bg);color:var(--ink);line-height:1.55;-webkit-font-smoothing:antialiased}
a{text-decoration:none;color:inherit}
img{max-width:100%;display:block}

/* ---------- Login ---------- */
.login-wrap{min-height:100vh;display:grid;place-items:center;
  background:linear-gradient(135deg,#1E3A8A,#2563EB 60%,#0EA5E9)}
.login-card{background:#fff;width:min(400px,92vw);border-radius:20px;
  padding:40px 34px;box-shadow:0 30px 70px -30px rgba(0,0,0,.5)}
.login-logo{width:64px;height:64px;border-radius:16px;margin:0 auto 18px;
  background:linear-gradient(135deg,var(--azul),var(--cyan));display:grid;
  place-items:center;color:#fff;font-weight:800;font-size:24px}
.login-card h1{text-align:center;font-size:22px;margin-bottom:4px}
.login-card .sub{text-align:center;color:var(--muted);font-size:14px;margin-bottom:26px}
.campo{margin-bottom:16px}
.campo label{display:block;font-size:13px;font-weight:600;margin-bottom:6px;color:var(--muted)}
.campo input{width:100%;padding:12px 14px;border:1px solid var(--line);border-radius:10px;
  font-size:15px;outline:none;transition:border .15s,box-shadow .15s}
.campo input:focus{border-color:var(--azul);box-shadow:0 0 0 3px rgba(37,99,235,.15)}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;cursor:pointer;
  border:0;border-radius:10px;font-weight:700;font-size:15px;padding:12px 18px;transition:all .15s}
.btn-azul{background:var(--azul);color:#fff;width:100%}
.btn-azul:hover{background:var(--azul-d)}
.alerta{background:#FEF2F2;color:var(--dang);border:1px solid #FECACA;
  padding:11px 14px;border-radius:10px;font-size:14px;margin-bottom:18px}

/* ---------- Layout app ---------- */
.app{display:flex;min-height:100vh}
.side{width:230px;background:var(--azul-d);color:#fff;flex-shrink:0;
  display:flex;flex-direction:column;position:sticky;top:0;height:100vh}
.side-logo{padding:22px 20px;display:flex;align-items:center;gap:10px;
  border-bottom:1px solid rgba(255,255,255,.12)}
.side-logo .mk{width:38px;height:38px;border-radius:10px;background:#fff;color:var(--azul);
  display:grid;place-items:center;font-weight:800}
.side-logo b{font-size:17px}
.side-logo span{display:block;font-size:11px;color:rgba(255,255,255,.6)}
.menu{flex:1;padding:14px 10px;display:flex;flex-direction:column;gap:3px}
.menu a{display:flex;align-items:center;gap:11px;padding:11px 14px;border-radius:10px;
  color:rgba(255,255,255,.82);font-weight:600;font-size:14.5px;transition:all .15s}
.menu a:hover{background:rgba(255,255,255,.1);color:#fff}
.menu a.on{background:#fff;color:var(--azul)}
.menu a svg{width:19px;height:19px;flex-shrink:0}
.side-foot{padding:14px 16px;border-top:1px solid rgba(255,255,255,.12);font-size:13px}
.side-foot .u{color:#fff;font-weight:600}
.side-foot .r{color:rgba(255,255,255,.55);font-size:12px}
.side-foot a{color:#BFD3FF;font-size:13px;display:inline-block;margin-top:6px}

.main{flex:1;min-width:0;display:flex;flex-direction:column}
.topbar{background:#fff;border-bottom:1px solid var(--line);padding:16px 26px;
  display:flex;align-items:center;justify-content:space-between;position:sticky;top:0;z-index:20}
.topbar h2{font-size:19px}
.content{padding:26px;flex:1}

/* ---------- Tarjetas / grids ---------- */
.cards{display:grid;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:18px}
.card{background:var(--card);border:1px solid var(--line);border-radius:var(--radio);
  padding:22px;box-shadow:var(--sombra)}
.kpi .lbl{color:var(--muted);font-size:13px;font-weight:600;text-transform:uppercase;letter-spacing:.04em}
.kpi .val{font-size:30px;font-weight:800;margin-top:6px}
.kpi .sub{color:var(--muted);font-size:13px;margin-top:4px}

/* ---------- Tablas ---------- */
.tabla-wrap{background:#fff;border:1px solid var(--line);border-radius:var(--radio);overflow:hidden}
table{width:100%;border-collapse:collapse}
th,td{padding:12px 16px;text-align:left;font-size:14px}
th{background:#F7F9FD;color:var(--muted);font-weight:700;text-transform:uppercase;
  font-size:12px;letter-spacing:.04em;border-bottom:1px solid var(--line)}
td{border-bottom:1px solid var(--line)}
tr:last-child td{border-bottom:0}
tr:hover td{background:#FAFBFE}

/* ---------- Botones / badges ---------- */
.btn-sm{padding:7px 13px;font-size:13px;border-radius:8px}
.btn-ghost{background:#fff;border:1px solid var(--line);color:var(--ink)}
.btn-ghost:hover{border-color:var(--azul);color:var(--azul)}
.btn-ok{background:var(--ok);color:#fff}
.btn-dang{background:var(--dang);color:#fff}
.badge{display:inline-block;padding:3px 10px;border-radius:20px;font-size:12px;font-weight:700}
.badge-ok{background:#DCFCE7;color:#166534}
.badge-low{background:#FEF3C7;color:#92400E}
.badge-out{background:#FEE2E2;color:#991B1B}

/* ---------- Form fields en paginas ---------- */
.grid-form{display:grid;grid-template-columns:repeat(auto-fit,minmax(200px,1fr));gap:16px}
.campo select,.campo textarea{width:100%;padding:12px 14px;border:1px solid var(--line);
  border-radius:10px;font-size:15px;outline:none;font-family:inherit}
.campo select:focus,.campo textarea:focus{border-color:var(--azul);box-shadow:0 0 0 3px rgba(37,99,235,.15)}

@media(max-width:820px){
  .side{width:62px}
  .side-logo b,.side-logo span,.menu a span,.side-foot .u,.side-foot .r,.side-foot a{display:none}
  .menu a{justify-content:center}
}