:root{
  --bg:#0a0a0c; --card:rgba(18,20,26,.88); --pri:#1e9be8; --pri-d:#0d6db8;
  --txt:#e8eaf0; --muted:#9aa3b2; --line:rgba(255,255,255,.12);
  --warn:#f7a83e; --danger:#e2604f;
}
*{box-sizing:border-box}
body{
  margin:0;font-family:system-ui,-apple-system,Segoe UI,Roboto,sans-serif;
  color:var(--txt);
  background:#000 url('../img/Magneto_Marvel_Comics_X_Men-1354847.jpg') no-repeat right top fixed;
  background-size:cover;
}

/* Login */
.login-bg{display:flex;align-items:center;justify-content:center;min-height:100vh}
.login-card{background:var(--card);backdrop-filter:blur(6px);padding:34px 30px;border-radius:14px;width:360px;
  border:1px solid var(--line);box-shadow:0 18px 50px rgba(0,0,0,.6)}
.login-card h1{margin:0 0 4px;font-size:20px;text-align:center;color:var(--txt)}
.login-card .subtitle{margin:0 0 18px;text-align:center;color:var(--muted);font-size:13px}
.login-card label{display:block;font-size:13px;margin:10px 0 4px;color:var(--muted)}
.login-card input{width:100%;padding:11px;border:1px solid var(--line);border-radius:8px;
  background:rgba(0,0,0,.45);color:var(--txt)}
.login-card button{width:100%;margin-top:18px;padding:12px;background:var(--pri);color:#fff;
  border:0;border-radius:8px;font-weight:600;cursor:pointer}
.login-card button:hover{background:var(--pri-d)}
.login-logo{display:block;margin:0 auto 14px;max-height:210px;max-width:100%;object-fit:contain}
.error{background:rgba(226,96,79,.2);border:1px solid var(--danger);color:#ffb4a8;padding:9px;border-radius:7px;font-size:13px;text-align:center}

/* Topbar */
.topbar{display:flex;align-items:center;gap:18px;background:rgba(10,11,15,.92);backdrop-filter:blur(8px);
  padding:12px 22px;border-bottom:1px solid var(--line);position:sticky;top:0;z-index:50}
.brand{display:flex;align-items:center;gap:8px;font-weight:700;color:var(--pri)}
.brand-logo{height:34px;width:auto;object-fit:contain}
.topbar nav{display:flex;gap:6px;flex:1;flex-wrap:wrap}
.topbar nav a{padding:8px 12px;border-radius:7px;text-decoration:none;color:var(--txt);font-size:14px}
.topbar nav a:hover{background:rgba(255,255,255,.1)}
.userbox{font-size:13px;color:var(--muted)}
.logout{margin-left:10px;color:var(--danger);text-decoration:none;font-weight:600}

.container{max-width:1150px;margin:22px auto;padding:0 18px}
h2,h3{color:var(--txt)}
h2{margin:6px 0 16px}
a{color:var(--pri)}
.flash{background:rgba(30,155,232,.15);border:1px solid rgba(30,155,232,.5);color:#a5d8ff;padding:11px 14px;border-radius:9px;margin-bottom:16px}

/* Logo central visible en cada página */
.page-logo{display:block;margin:4px auto 18px;max-width:min(440px,80vw);height:auto;filter:drop-shadow(0 4px 14px rgba(0,0,0,.7))}

/* Cards */
.cards{display:grid;grid-template-columns:repeat(auto-fit,minmax(160px,1fr));gap:14px;margin-bottom:24px}
.card{background:var(--card);border:1px solid var(--line);border-radius:12px;padding:18px;text-align:center;
  backdrop-filter:blur(4px);box-shadow:0 6px 18px rgba(0,0,0,.4)}
.card span{display:block;font-size:24px;font-weight:700;color:var(--pri)}
.card label{font-size:12px;color:var(--muted)}
.card.warn span{color:var(--warn)}
.card.orange{background:linear-gradient(135deg,#f7a83e,#e8821a);border:0}
.card.orange span{color:#fff}
.card.orange label{color:rgba(255,255,255,.92)}
.card.blue{background:linear-gradient(135deg,#1e9be8,#0d6db8);border:0}
.card.blue span{color:#fff}
.card.blue label{color:rgba(255,255,255,.92)}
.card.green{background:linear-gradient(135deg,#1db662,#0e9e4f);border:0}
.card.green span{color:#fff}
.card.green label{color:rgba(255,255,255,.92)}
.card.red{background:linear-gradient(135deg,#e2604f,#cc4636);border:0}
.card.red span{color:#fff}
.card.red label{color:rgba(255,255,255,.92)}
.card.purple{background:linear-gradient(135deg,#7c7bc4,#5e5da8);border:0}
.card.purple span{color:#fff}
.card.purple label{color:rgba(255,255,255,.92)}

/* Layout boxes */
.grid-2{display:grid;grid-template-columns:380px 1fr;gap:20px}
@media(max-width:900px){.grid-2{grid-template-columns:1fr}}
.box{background:var(--card);border:1px solid var(--line);border-radius:12px;padding:18px;
  backdrop-filter:blur(4px);box-shadow:0 6px 18px rgba(0,0,0,.4)}
.box h3{margin-top:0}
.box label{display:block;font-size:13px;color:var(--muted);margin:10px 0 4px}
.box input,.box select,.box textarea{width:100%;padding:9px;border:1px solid var(--line);border-radius:8px;
  background:rgba(0,0,0,.45);color:var(--txt)}
.box select option{background:#15171d;color:var(--txt)}
.box textarea{min-height:60px;resize:vertical}
.row{display:flex;gap:10px}
.row>div{flex:1}
.box button{margin-top:14px;padding:10px 16px;background:var(--pri);color:#fff;border:0;border-radius:8px;cursor:pointer;font-weight:600}
.box button:hover{background:var(--pri-d)}
.btn-sec{margin-left:8px;padding:9px 14px;background:rgba(255,255,255,.12);color:var(--txt);border:0;border-radius:8px;text-decoration:none;display:inline-block;cursor:pointer}

/* Tables */
.tbl{width:100%;border-collapse:collapse;margin-top:10px;font-size:14px;color:var(--txt)}
.tbl th,.tbl td{text-align:left;padding:9px;border-bottom:1px solid var(--line)}
.tbl th{color:var(--muted);font-weight:600;font-size:12px;text-transform:uppercase}
.tbl tr.low td{background:rgba(247,168,62,.15)}
.link-del{background:none!important;border:0;color:var(--danger);cursor:pointer;padding:0!important;margin:0!important}
.search{display:flex;gap:10px;align-items:flex-end}
.search input{flex:1}
.footer{text-align:center;color:var(--muted);padding:24px;text-shadow:0 1px 4px rgba(0,0,0,.8)}

/* POS - Totales */
.totales{margin-top:16px;background:rgba(0,0,0,.4);border:1px solid var(--line);border-radius:10px;padding:12px 16px;text-align:right;font-size:14px}
.totales div{padding:3px 0}
.gran-total{font-size:18px;color:var(--pri);border-top:1px solid var(--line);margin-top:6px;padding-top:8px!important}

/* Bienvenida estilo panel GSM */
.bienvenida{
  font-weight:800;font-size:18px;color:#f5e63d;
  text-shadow:0 0 10px rgba(245,230,61,.4);
  margin:2px 0 6px;
}
.bienvenida-user{
  color:#2eff5e;
  text-shadow:0 0 10px rgba(46,255,94,.65),0 0 26px rgba(46,255,94,.35);
}
.bienvenida-info{
  font-weight:700;font-size:13px;color:#ff5a1f;
  text-shadow:0 0 8px rgba(255,90,31,.45);
  margin-bottom:20px;
}
.btn-danger{background:rgba(226,96,79,.25)!important;color:#ffb4a8!important}
.btn-danger:hover{background:rgba(226,96,79,.45)!important}
.rangos{display:flex;gap:8px;align-items:flex-end;padding-bottom:2px}
.rangos a{padding:8px 13px;background:rgba(255,255,255,.12);border-radius:8px;text-decoration:none;color:var(--txt);font-size:13px}
.rangos a:hover{background:rgba(30,155,232,.35)}
.card.lime{background:linear-gradient(135deg,#cde615,#4fae1d);border:0}
.card.lime span{color:#fff}
.card.lime label{color:rgba(255,255,255,.95)}

/* Buscador de cliente (autocompletado) */
.cliente-buscador{position:relative}
.cliente-buscador input{width:100%;padding:9px;border:1px solid var(--line);border-radius:8px;background:rgba(0,0,0,.45);color:var(--txt)}
.cliente-lista{position:absolute;left:0;right:0;top:calc(100% + 4px);z-index:30;
  background:#15171d;border:1px solid var(--line);border-radius:8px;overflow:hidden;display:none;
  box-shadow:0 10px 26px rgba(0,0,0,.55);max-height:280px;overflow-y:auto}
.cli-item{padding:10px 12px;cursor:pointer;font-size:14px;border-bottom:1px solid rgba(255,255,255,.06)}
.cli-item:hover{background:rgba(30,155,232,.25)}
.cli-item span{color:var(--muted);font-size:12.5px}

/* Tarjetas del dashboard clickeables */
a.card{text-decoration:none!important;display:block;transition:transform .12s, box-shadow .12s}
a.card span,a.card label{text-decoration:none!important}
a.card:hover{transform:translateY(-3px);box-shadow:0 10px 26px rgba(0,0,0,.55);filter:brightness(1.06)}
a.card span,a.card label{cursor:pointer}

/* Buscador de producto (autocompletado) en el POS */
.prod-buscador{position:relative}
.prod-buscador input.prod-q{width:100%;padding:9px;border:1px solid var(--line);border-radius:8px;background:rgba(0,0,0,.45);color:var(--txt)}
.prod-lista{position:absolute;left:0;right:0;top:calc(100% + 4px);z-index:30;
  background:#15171d;border:1px solid var(--line);border-radius:8px;overflow:hidden;display:none;
  box-shadow:0 10px 26px rgba(0,0,0,.55);max-height:300px;overflow-y:auto}
.prod-item{padding:10px 12px;cursor:pointer;font-size:14px;border-bottom:1px solid rgba(255,255,255,.06)}
.prod-item:hover{background:rgba(30,155,232,.25)}
.prod-item span{color:var(--muted);font-size:12.5px}
.prod-select{margin-top:8px;width:100%;padding:9px;border:1px solid var(--line);border-radius:8px;background:rgba(0,0,0,.45);color:var(--txt)}
.prod-select option{background:#15171d;color:var(--txt)}
#cliente_select{margin-top:8px;width:100%;padding:9px;border:1px solid var(--line);border-radius:8px;background:rgba(0,0,0,.45);color:var(--txt)}
#cliente_select option{background:#15171d;color:var(--txt)}
/* ===== MENU RESPONSIVE (movil) ===== */
.menu-toggle{display:none;background:none;border:0;color:var(--txt);font-size:26px;cursor:pointer;line-height:1;padding:4px 8px}
@media(max-width:820px){
  .topbar{flex-wrap:wrap;gap:10px;padding:10px 16px}
  .brand{flex:1;font-size:15px}
  .brand-logo{height:28px}
  .menu-toggle{display:block;order:2}
  .userbox{order:3;width:100%;display:flex;justify-content:space-between;align-items:center;
    border-top:1px solid var(--line);padding-top:8px;margin-top:2px}
  .topbar nav{order:4;width:100%;flex-direction:column;gap:2px;display:none}
  body.menu-open .topbar nav{display:flex}
  .topbar nav a{padding:11px 12px;border-radius:8px;background:rgba(255,255,255,.04);font-size:15px}
}