:root{
  --primary:#2b3a67;
  --accent:#00a09d;
  --bg:#f5f6f8;
  --surface:#ffffff;
  --border:#e3e6ec;
  --text:#2a2d34;
  --muted:#8a909c;
  --ok:#28a745; --warn:#e0a800; --bad:#d64545; --info:#3a7bd5;
  --radius:6px;
  --shadow:0 1px 3px rgba(30,40,70,.08);
  --font:'Inter',system-ui,-apple-system,'Segoe UI',Roboto,sans-serif;
}
*{box-sizing:border-box}
html,body{margin:0;padding:0}
body{font-family:var(--font);background:var(--bg);color:var(--text);font-size:14px;line-height:1.5}
a{color:var(--accent);text-decoration:none}
a:hover{text-decoration:underline}

/* ---------- Layout ---------- */
.layout{display:flex;min-height:100vh}
.sidebar{width:230px;background:var(--primary);color:#fff;display:flex;flex-direction:column;flex-shrink:0}
.sidebar .brand{padding:18px 20px;font-weight:600;font-size:15px;border-bottom:1px solid rgba(255,255,255,.12);display:flex;align-items:center;gap:10px}
.sidebar .brand img{max-height:26px;max-width:120px}
.sidebar nav{padding:10px 0;flex:1}
.sidebar nav a{display:block;color:#c9cfe0;padding:10px 20px;font-size:13.5px}
.sidebar nav a:hover{background:rgba(255,255,255,.08);color:#fff;text-decoration:none}
.sidebar nav a.active{background:rgba(255,255,255,.14);color:#fff;border-left:3px solid var(--accent)}
.sidebar .foot{padding:14px 20px;border-top:1px solid rgba(255,255,255,.12);font-size:12px;color:#aeb6cc}
.main{flex:1;display:flex;flex-direction:column;min-width:0}
.topbar{height:52px;background:var(--surface);border-bottom:1px solid var(--border);display:flex;align-items:center;justify-content:space-between;padding:0 22px}
.topbar .title{font-weight:600;font-size:15px}
.topbar .user{font-size:13px;color:var(--muted)}
.content{padding:22px;flex:1}

/* ---------- Cards / paneles ---------- */
.card{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);box-shadow:var(--shadow);margin-bottom:18px}
.card .card-h{padding:12px 16px;border-bottom:1px solid var(--border);font-weight:600;font-size:14px;display:flex;justify-content:space-between;align-items:center}
.card .card-b{padding:16px}
.grid{display:grid;gap:16px}
.grid.cols-2{grid-template-columns:1fr 1fr}
.grid.cols-3{grid-template-columns:repeat(3,1fr)}
.grid.cols-4{grid-template-columns:repeat(4,1fr)}

/* ---------- Tablas ---------- */
table.tbl{width:100%;border-collapse:collapse;font-size:13.5px}
table.tbl th{text-align:left;padding:10px 12px;background:#fafbfc;border-bottom:1px solid var(--border);color:var(--muted);font-weight:600;font-size:12px;text-transform:uppercase;letter-spacing:.03em}
table.tbl td{padding:11px 12px;border-bottom:1px solid var(--border)}
table.tbl tr:hover td{background:#fafbfd}

/* ---------- Botones ---------- */
.btn{display:inline-flex;align-items:center;gap:6px;border:1px solid var(--border);background:var(--surface);color:var(--text);padding:8px 14px;border-radius:var(--radius);cursor:pointer;font-size:13.5px;font-family:inherit;transition:.12s}
.btn:hover{background:#f2f4f7;text-decoration:none}
.btn-primary{background:var(--primary);border-color:var(--primary);color:#fff}
.btn-primary:hover{background:#22305a}
.btn-accent{background:var(--accent);border-color:var(--accent);color:#fff}
.btn-accent:hover{filter:brightness(.95)}
.btn-danger{background:var(--bad);border-color:var(--bad);color:#fff}
.btn-sm{padding:5px 10px;font-size:12.5px}
.btn:disabled{opacity:.5;cursor:not-allowed}

/* ---------- Forms ---------- */
.field{margin-bottom:14px}
.field label{display:block;font-size:12.5px;color:var(--muted);margin-bottom:5px;font-weight:600}
.input,select,textarea{width:100%;padding:9px 11px;border:1px solid var(--border);border-radius:var(--radius);font-size:14px;font-family:inherit;background:#fff}
.input:focus,select:focus,textarea:focus{outline:none;border-color:var(--accent);box-shadow:0 0 0 3px rgba(0,160,157,.12)}
.row{display:flex;gap:14px;flex-wrap:wrap}
.row>*{flex:1;min-width:180px}

/* ---------- Badges de estado ---------- */
.badge{display:inline-block;padding:3px 10px;border-radius:20px;font-size:11.5px;font-weight:600}
.badge.creada{background:#eef1f6;color:#5a6478}
.badge.en_transito{background:#e6f0fb;color:var(--info)}
.badge.entregado{background:#e7f6ec;color:var(--ok)}
.badge.liquidado{background:#efeaf9;color:#6f42c1}
.badge.pendiente{background:#fff6e0;color:#a67c00}
.badge.aprobada{background:#e7f6ec;color:var(--ok)}
.badge.rechazada{background:#fbe9e9;color:var(--bad)}

/* ---------- Fotos ---------- */
.thumbs{display:grid;grid-template-columns:repeat(auto-fill,minmax(150px,1fr));gap:12px}
.thumb{border:1px solid var(--border);border-radius:var(--radius);overflow:hidden;background:#fff}
.thumb img{width:100%;height:120px;object-fit:cover;display:block}
.thumb .meta{padding:8px;display:flex;justify-content:space-between;align-items:center;gap:6px}

/* ---------- Login ---------- */
.login-wrap{min-height:100vh;display:flex;align-items:center;justify-content:center;background:var(--primary)}
.login-card{background:#fff;width:360px;padding:30px;border-radius:10px;box-shadow:0 10px 40px rgba(0,0,0,.2)}
.login-card h1{font-size:18px;margin:0 0 4px}
.login-card p.sub{color:var(--muted);margin:0 0 20px;font-size:13px}

/* ---------- Alertas ---------- */
.alert{padding:11px 14px;border-radius:var(--radius);margin-bottom:16px;font-size:13.5px}
.alert-ok{background:#e7f6ec;color:#1e7a37;border:1px solid #bfe6cb}
.alert-err{background:#fbe9e9;color:#a52020;border:1px solid #f0c4c4}
.muted{color:var(--muted)}
.mt0{margin-top:0}
.right{text-align:right}
.flexbtns{display:flex;gap:8px;flex-wrap:wrap}

/* ---------- Firma canvas ---------- */
.sigpad{border:2px dashed var(--border);border-radius:var(--radius);background:#fff;touch-action:none;width:100%;max-width:420px;height:180px}

@media(max-width:820px){
  .sidebar{width:60px}
  .sidebar .brand span,.sidebar nav a span,.sidebar .foot{display:none}
  .grid.cols-2,.grid.cols-3,.grid.cols-4{grid-template-columns:1fr}
}

/* ============================================================
   Modal de documentos + carrusel de fotos
   ============================================================ */
#mdlOverlay{position:fixed;inset:0;background:rgba(20,26,45,.72);display:none;align-items:center;justify-content:center;z-index:1000;padding:24px}
#mdlOverlay.show{display:flex}
#mdlBox{position:relative;background:var(--surface);border-radius:10px;width:min(920px,96vw);height:min(88vh,900px);display:flex;flex-direction:column;box-shadow:0 20px 60px rgba(0,0,0,.35);overflow:hidden}
#mdlHead{display:flex;align-items:center;justify-content:space-between;padding:10px 14px;border-bottom:1px solid var(--border);background:#fafbfc}
#mdlTitle{font-weight:600;font-size:14px;color:var(--text);overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
#mdlActions{display:flex;gap:8px;align-items:center;flex-shrink:0}
.mdl-btn{display:inline-flex;align-items:center;gap:6px;border:1px solid var(--border);background:#fff;color:var(--text);padding:6px 12px;border-radius:6px;cursor:pointer;font-size:13px;text-decoration:none;font-family:inherit}
.mdl-btn:hover{background:#f2f4f7;text-decoration:none}
.mdl-btn-primary{background:var(--accent);border-color:var(--accent);color:#fff}
#mdlBody{flex:1;overflow:auto;display:flex;align-items:center;justify-content:center;background:#f0f2f5}
#mdlBody iframe{width:100%;height:100%;border:0}
#mdlBody img{max-width:100%;max-height:100%;object-fit:contain;display:block}
.mdl-msg{text-align:center;padding:40px;color:var(--muted)}
.mdl-msg p{margin:0 0 16px;font-size:14px}
.mdl-nav{position:absolute;top:50%;transform:translateY(-50%);width:44px;height:44px;border-radius:50%;border:none;background:rgba(0,0,0,.45);color:#fff;font-size:28px;line-height:1;cursor:pointer;display:flex;align-items:center;justify-content:center;transition:.15s}
.mdl-nav:hover{background:rgba(0,0,0,.7)}
#mdlPrev{left:14px} #mdlNext{right:14px}
#mdlCounter{position:absolute;bottom:14px;left:50%;transform:translateX(-50%);background:rgba(0,0,0,.55);color:#fff;padding:4px 12px;border-radius:20px;font-size:12px}
@media(max-width:820px){
  #mdlBox{height:92vh;width:100vw;border-radius:0}
  .mdl-nav{width:38px;height:38px;font-size:24px}
}