/* Panel de administración — Nano Invoice */
:root{
  --navy:#0e2a47; --navy-2:#0b2038; --cyan:#29b3ec; --azure:#1276b7; --azure-600:#0e5f97;
  --mint:#0fae7a; --amber:#f59e0b; --red:#c0392b;
  --ink:#132235; --muted:#61748a; --line:#e3e9f2; --bg:#f1f5f9; --card:#fff;
  --f-d:"Sora",system-ui,sans-serif; --f:"IBM Plex Sans",system-ui,-apple-system,Segoe UI,Roboto,Arial,sans-serif;
  --shadow:0 1px 2px rgba(16,42,67,.06), 0 6px 20px rgba(16,42,67,.06);
}
*{box-sizing:border-box}
body{margin:0;background:var(--bg);color:var(--ink);font-family:var(--f);font-size:15px;line-height:1.55}
a{color:inherit;text-decoration:none}
h1,h2,h3{font-family:var(--f-d);margin:0;color:var(--navy);letter-spacing:-.01em}
img{max-width:100%;display:block}

.shell{display:grid;grid-template-columns:238px 1fr;min-height:100vh}

/* Sidebar */
.side{background:var(--navy);color:#c7d6e8;display:flex;flex-direction:column;padding:20px 14px;position:sticky;top:0;height:100vh}
.side__brand{padding:6px 8px 18px}
.side__brand img{height:34px;width:auto}
.side__nav{display:flex;flex-direction:column;gap:4px;flex:1}
.side__nav a{display:flex;align-items:center;gap:11px;padding:11px 12px;border-radius:9px;color:#aebfd4;font-weight:500;transition:background .15s,color .15s}
.side__nav a svg{width:19px;height:19px;opacity:.9}
.side__nav a:hover{background:rgba(255,255,255,.06);color:#fff}
.side__nav a.on{background:var(--azure);color:#fff}
.side__site{margin-top:14px;padding:10px 12px;color:#8fa4bf;font-size:.85rem;border-top:1px solid rgba(255,255,255,.1)}
.side__site:hover{color:#fff}

/* Main */
.main{display:flex;flex-direction:column;min-width:0}
.top{display:flex;align-items:center;justify-content:space-between;gap:16px;padding:18px 28px;background:var(--card);border-bottom:1px solid var(--line);position:sticky;top:0;z-index:10}
.top h1{font-size:1.35rem}
.top__user{display:flex;align-items:center;gap:14px;color:var(--muted);font-size:.92rem}
.content{padding:28px;max-width:1180px;width:100%}

/* Botones */
.btn{display:inline-flex;align-items:center;gap:8px;font-family:var(--f);font-weight:600;font-size:.92rem;cursor:pointer;border:1px solid transparent;border-radius:9px;padding:10px 16px;transition:background .15s,box-shadow .15s,transform .1s}
.btn svg{width:16px;height:16px}
.btn-primary{background:var(--azure);color:#fff}
.btn-primary:hover{background:var(--azure-600)}
.btn-ghost{background:#fff;color:var(--navy);border-color:var(--line)}
.btn-ghost:hover{border-color:#c7d4e6}
.btn-danger{background:#fff;color:var(--red);border-color:#f0c9c4}
.btn-danger:hover{background:#fdecea}
.btn-sm{padding:7px 12px;font-size:.85rem}

/* Tarjetas KPI */
.kpis{display:grid;grid-template-columns:repeat(4,1fr);gap:16px;margin-bottom:26px}
.kpi{background:var(--card);border:1px solid var(--line);border-radius:14px;padding:18px 20px;box-shadow:var(--shadow)}
.kpi .l{color:var(--muted);font-size:.82rem;text-transform:uppercase;letter-spacing:.05em}
.kpi .v{font-family:var(--f-d);font-weight:700;font-size:1.9rem;color:var(--navy);margin-top:4px}
.kpi.accent{background:linear-gradient(135deg,var(--navy),#173a5e);color:#fff}
.kpi.accent .l{color:#a9c1dc}.kpi.accent .v{color:#fff}

/* Card genérica */
.card{background:var(--card);border:1px solid var(--line);border-radius:14px;box-shadow:var(--shadow)}
.card__hd{padding:16px 20px;border-bottom:1px solid var(--line);display:flex;align-items:center;justify-content:space-between;gap:12px}
.card__hd h2{font-size:1.05rem}
.card__bd{padding:20px}

/* Tabla */
.table{width:100%;border-collapse:collapse;font-size:.92rem}
.table th{text-align:left;color:var(--muted);font-weight:600;font-size:.78rem;text-transform:uppercase;letter-spacing:.04em;padding:12px 16px;border-bottom:1px solid var(--line)}
.table td{padding:13px 16px;border-bottom:1px solid var(--line);vertical-align:middle}
.table tr:last-child td{border-bottom:0}
.table tbody tr:hover{background:#f7fafd}
.table .num{font-variant-numeric:tabular-nums;text-align:right}
.muted{color:var(--muted)}
.wrap{overflow-x:auto}

/* Badges de estado */
.badge{display:inline-flex;align-items:center;gap:6px;font-size:.78rem;font-weight:600;padding:4px 10px;border-radius:999px;white-space:nowrap}
.badge::before{content:"";width:7px;height:7px;border-radius:50%;background:currentColor;opacity:.9}
.b-nuevo{color:#0e5f97;background:#e7f4fd}
.b-contactado{color:#8a5a00;background:#fdf3e0}
.b-demo{color:#7a3fb0;background:#f2e9fb}
.b-cliente,.b-activo{color:#0a6b4b;background:#e7f8f1}
.b-descartado,.b-baja{color:#8a3a3a;background:#f7e7e7}
.b-suspendido{color:#8a5a00;background:#fdf3e0}
.b-prueba{color:#0e5f97;background:#e7f4fd}

/* Formularios */
.field{display:flex;flex-direction:column;gap:6px;margin-bottom:14px}
.field label{font-size:.85rem;font-weight:600;color:#3b4d61}
.field input,.field select,.field textarea{font-family:var(--f);font-size:.95rem;border:1px solid var(--line);border-radius:9px;padding:11px 12px;background:#fbfdff;color:var(--ink)}
.field input:focus,.field select:focus,.field textarea:focus{outline:none;border-color:var(--azure);box-shadow:0 0 0 4px rgba(18,118,183,.15)}
.field textarea{resize:vertical;min-height:80px}
.grid2{display:grid;grid-template-columns:1fr 1fr;gap:0 16px}
.actions{display:flex;gap:10px;align-items:center;margin-top:8px}

/* Filtros / toolbar */
.toolbar{display:flex;gap:10px;flex-wrap:wrap;align-items:center;margin-bottom:18px}
.tabs{display:flex;gap:6px;flex-wrap:wrap}
.tabs a{padding:7px 13px;border-radius:999px;font-size:.86rem;font-weight:600;color:var(--muted);background:#fff;border:1px solid var(--line)}
.tabs a.on{background:var(--navy);color:#fff;border-color:var(--navy)}

/* Flash */
.flash{padding:12px 16px;border-radius:10px;margin-bottom:18px;font-size:.92rem;font-weight:500}
.flash--ok{background:#e7f8f1;color:#0a6b4b;border:1px solid #b9e6d3}
.flash--err{background:#fdecec;color:#a12626;border:1px solid #f6c9c9}
.flash--info{background:#e7f4fd;color:#0e5f97;border:1px solid #cbe3f8}

/* Detalle definición */
.dl{display:grid;grid-template-columns:150px 1fr;gap:10px 16px}
.dl dt{color:var(--muted);font-size:.85rem}
.dl dd{margin:0;color:var(--ink)}

.empty{text-align:center;color:var(--muted);padding:48px 20px}

/* Login */
.login{min-height:100vh;display:grid;place-items:center;background:linear-gradient(135deg,var(--navy),#173a5e);padding:20px}
.login__card{background:#fff;border-radius:16px;box-shadow:0 30px 70px rgba(0,0,0,.3);width:100%;max-width:380px;padding:34px 30px}
.login__logo{display:block;height:40px;margin:0 auto 20px;width:auto}
.login h1{font-size:1.25rem;text-align:center;margin-bottom:6px}
.login p{text-align:center;color:var(--muted);font-size:.9rem;margin:0 0 22px}

@media (max-width:820px){
  .shell{grid-template-columns:1fr}
  .side{position:static;height:auto;flex-direction:row;align-items:center;gap:10px;overflow-x:auto}
  .side__brand{padding:0 8px}.side__brand img{height:28px}
  .side__nav{flex-direction:row;flex:1}
  .side__nav a span{display:none}
  .side__site{border-top:0;white-space:nowrap}
  .kpis{grid-template-columns:1fr 1fr}
  .grid2{grid-template-columns:1fr}
  .content{padding:18px}
}