:root{
  --brand:#2563eb;
  --bg:#f1f5f9; --card:#ffffff; --ink:#0f172a; --muted:#64748b;
  --line:#e2e8f0; --ok:#16a34a; --okbg:#dcfce7; --err:#dc2626; --errbg:#fee2e2;
  --warnbg:#fef9c3; --radius:12px; --shadow:0 1px 3px rgba(15,23,42,.08),0 1px 2px rgba(15,23,42,.04);
}
*{box-sizing:border-box}
html,body{margin:0;padding:0}
body{font-family:-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,Helvetica,Arial,sans-serif;
  background:var(--bg);color:var(--ink);font-size:15px;line-height:1.5;-webkit-text-size-adjust:100%}
a{color:var(--brand);text-decoration:none}
a:hover{text-decoration:underline}
h1{font-size:1.5rem;margin:.2rem 0 1rem}
h2{font-size:1.15rem;margin:1.2rem 0 .6rem}

/* ---------- Topbar ---------- */
.topbar{position:sticky;top:0;z-index:40;display:flex;align-items:center;gap:.6rem;
  background:var(--brand);color:#fff;padding:.6rem .9rem;box-shadow:var(--shadow)}
.topbar .brand{color:#fff;font-weight:700;font-size:1.05rem;display:flex;align-items:center;gap:.4rem}
.topbar .brand:hover{text-decoration:none;opacity:.95}
.topbar .logo{opacity:.9}
.topbar .spacer{flex:1}
.burger{display:none;background:rgba(255,255,255,.15);border:0;color:#fff;font-size:1.2rem;
  width:38px;height:38px;border-radius:9px;cursor:pointer}
.user{display:flex;align-items:center;gap:.5rem;font-size:.85rem}
.user .uname{font-weight:600}
.user .urol{opacity:.8;background:rgba(255,255,255,.15);padding:.1rem .5rem;border-radius:20px;font-size:.72rem}
.user .salir{color:#fff;background:rgba(0,0,0,.18);padding:.35rem .7rem;border-radius:8px;font-size:.8rem}
.user .salir:hover{text-decoration:none;background:rgba(0,0,0,.3)}
.sede-switch select{background:rgba(255,255,255,.95);border:0;border-radius:8px;padding:.35rem .5rem;
  font-size:.82rem;color:var(--ink);max-width:170px}

/* ---------- Shell ---------- */
.shell{display:flex;min-height:calc(100vh - 54px)}
.sidebar{width:220px;background:var(--card);border-right:1px solid var(--line);
  display:flex;flex-direction:column;justify-content:space-between;flex-shrink:0}
.sidebar nav{display:flex;flex-direction:column;padding:.8rem}
.sidebar nav a{color:var(--ink);padding:.7rem .8rem;border-radius:9px;margin-bottom:.15rem;font-weight:500}
.sidebar nav a:hover{background:var(--bg);text-decoration:none}
.sidebar nav a.on{background:var(--brand);color:#fff}
.side-foot{padding:.9rem;border-top:1px solid var(--line)}
.side-sede{font-size:.78rem;color:var(--muted)}
.overlay{display:none}
.content{flex:1;padding:1.3rem;max-width:1200px;width:100%;margin:0 auto}

/* ---------- Cards / tables ---------- */
.card{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);
  box-shadow:var(--shadow);padding:1.1rem;margin-bottom:1.1rem}
.grid{display:grid;gap:1rem}
.grid.c2{grid-template-columns:repeat(2,1fr)}
.grid.c3{grid-template-columns:repeat(3,1fr)}
.grid.c4{grid-template-columns:repeat(4,1fr)}

.stat{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);
  box-shadow:var(--shadow);padding:1rem}
.stat .n{font-size:1.8rem;font-weight:700}
.stat .l{color:var(--muted);font-size:.85rem}

.table-wrap{overflow-x:auto;-webkit-overflow-scrolling:touch}
table{width:100%;border-collapse:collapse;font-size:.9rem}
th,td{text-align:left;padding:.6rem .6rem;border-bottom:1px solid var(--line);vertical-align:middle}
th{color:var(--muted);font-weight:600;font-size:.78rem;text-transform:uppercase;letter-spacing:.03em}
tbody tr:hover{background:#f8fafc}
td.r,th.r{text-align:right}
td.c,th.c{text-align:center}

.badge{display:inline-block;padding:.15rem .55rem;border-radius:20px;font-size:.73rem;font-weight:600}
.badge.gris{background:#e2e8f0;color:#475569}
.badge.verde{background:var(--okbg);color:#15803d}
.badge.azul{background:#dbeafe;color:#1d4ed8}
.badge.ambar{background:var(--warnbg);color:#a16207}
.badge.rojo{background:var(--errbg);color:#b91c1c}

/* ---------- Forms ---------- */
label{display:block;font-size:.82rem;color:var(--muted);margin:.6rem 0 .25rem;font-weight:600}
input,select,textarea{width:100%;padding:.6rem .7rem;border:1px solid var(--line);border-radius:9px;
  font:inherit;background:#fff;color:var(--ink)}
input:focus,select:focus,textarea:focus{outline:2px solid var(--brand);outline-offset:-1px;border-color:var(--brand)}
textarea{min-height:80px;resize:vertical}
.form-row{display:grid;gap:.8rem}
.form-row.c2{grid-template-columns:1fr 1fr}
.form-row.c3{grid-template-columns:1fr 1fr 1fr}
.hint{font-size:.78rem;color:var(--muted);margin-top:.25rem}

.btn{display:inline-flex;align-items:center;gap:.4rem;background:var(--brand);color:#fff;border:0;
  padding:.62rem 1.05rem;border-radius:9px;font:inherit;font-weight:600;cursor:pointer;white-space:nowrap}
.btn:hover{text-decoration:none;filter:brightness(.94)}
.btn.sec{background:#fff;color:var(--ink);border:1px solid var(--line)}
.btn.ghost{background:transparent;color:var(--brand);padding:.4rem .6rem}
.btn.danger{background:var(--err)}
.btn.sm{padding:.4rem .7rem;font-size:.82rem}
.btn.block{width:100%;justify-content:center}
.btn.big{padding:.8rem 1.4rem;font-size:1.02rem}

.toolbar{display:flex;flex-wrap:wrap;gap:.6rem;align-items:center;justify-content:space-between;margin-bottom:1rem}
.toolbar .left{display:flex;gap:.6rem;align-items:center;flex-wrap:wrap}
.search{min-width:220px}

.actions{display:flex;gap:.4rem;flex-wrap:wrap}

/* ---------- Flash ---------- */
.flash{padding:.7rem 1rem;border-radius:9px;margin-bottom:1rem;font-weight:500}
.flash-ok{background:var(--okbg);color:#15803d}
.flash-error{background:var(--errbg);color:#b91c1c}
.flash-warn{background:var(--warnbg);color:#a16207}

/* ---------- Login ---------- */
.login-wrap{min-height:100vh;display:flex;align-items:center;justify-content:center;padding:1.2rem;
  background:linear-gradient(135deg,var(--brand),#0b1a4a)}
.login-card{background:#fff;border-radius:16px;box-shadow:0 20px 50px rgba(0,0,0,.25);
  padding:2rem 1.8rem;width:100%;max-width:380px}
.login-card .lg{text-align:center;margin-bottom:1.2rem}
.login-card .lg .mark{font-size:2.2rem;color:var(--brand)}
.login-card h1{font-size:1.3rem;text-align:center;margin:.2rem 0 .1rem}
.login-card .sub{text-align:center;color:var(--muted);font-size:.85rem;margin-bottom:1rem}

/* ---------- Cotización builder ---------- */
.cot-head{display:grid;grid-template-columns:1.2fr .8fr;gap:1rem}
.item-pick{position:relative}
.ac-list{position:absolute;z-index:30;left:0;right:0;background:#fff;border:1px solid var(--line);
  border-radius:10px;box-shadow:var(--shadow);max-height:280px;overflow:auto;margin-top:2px}
.ac-list .ac{padding:.55rem .7rem;cursor:pointer;border-bottom:1px solid var(--line)}
.ac-list .ac:hover,.ac-list .ac.sel{background:#eff6ff}
.ac-list .ac .cod{font-size:.75rem;color:var(--muted)}
.ac-list .ac .pr{float:right;font-weight:600}
.ac-empty{padding:.7rem;color:var(--muted);font-size:.85rem}

.lineas th{background:#f8fafc}
.lineas input{padding:.4rem .5rem}
.lineas .qty{width:90px;text-align:right}
.lineas .prc{width:120px;text-align:right}
.lineas .tot{width:120px;text-align:right;font-weight:600}
.lineas .del{color:var(--err);cursor:pointer;font-size:1.1rem;background:none;border:0}

.totbox{max-width:340px;margin-left:auto;margin-top:1rem}
.totbox .row{display:flex;justify-content:space-between;padding:.4rem 0;border-bottom:1px solid var(--line)}
.totbox .row.big{font-size:1.25rem;font-weight:700;border-bottom:0;padding-top:.7rem}
.totbox .row .lbl{color:var(--muted)}

.empty{text-align:center;color:var(--muted);padding:2.5rem 1rem}
.empty .big{font-size:2.5rem;opacity:.3}

/* ---------- Responsive ---------- */
@media (max-width:860px){
  .burger{display:block}
  .sidebar{position:fixed;left:0;top:54px;bottom:0;transform:translateX(-100%);transition:transform .22s;z-index:50;box-shadow:var(--shadow)}
  .sidebar.open{transform:translateX(0)}
  .overlay.show{display:block;position:fixed;inset:54px 0 0 0;background:rgba(0,0,0,.35);z-index:45}
  .grid.c2,.grid.c3,.grid.c4{grid-template-columns:1fr 1fr}
  .cot-head{grid-template-columns:1fr}
  .form-row.c2,.form-row.c3{grid-template-columns:1fr}
  .user .uname,.user .urol{display:none}
  .content{padding:1rem .8rem}
}
@media (max-width:520px){
  .grid.c2,.grid.c3,.grid.c4{grid-template-columns:1fr}
  .sede-switch select{max-width:120px}
  h1{font-size:1.3rem}
}

/* ---------- Print (vista imprimible) ---------- */
@media print{
  .topbar,.sidebar,.toolbar,.no-print{display:none!important}
  .content{padding:0;max-width:none}
  .card{box-shadow:none;border:0}
}