:root{
  /* ===== COLORES DE MARCA — cambiá estos y se actualizan TODAS las pantallas ===== */
  --brand:#17264d;        /* AZUL MARINO: botones, encabezados, enlaces */
  --brand-2:#22356b;      /* azul un poco más claro (efecto hover) */
  --navy:#17264d;         /* azul marino (igual que brand) */
  --gold:#c2a268;         /* DORADO: acentos, pestaña activa, detalles */
  --cyan:#c2a268;         /* (degradados) lo dejamos dorado para combinar */
  /* ============================================================================== */
  --ink:#1b2333;
  --muted:#6b7c85;
  --line:#e4eaed;
  --bg:#f4f7f8;
  --card:#ffffff;
  --ok:#1b7a3d; --ok-bg:#e6f6ec;
  --err:#b3261e; --err-bg:#fdecec;
  --warn:#9a6a12; --warn-bg:#fff4dd;
  --radius:12px;
  --sh:0 1px 3px rgba(16,36,43,.06),0 1px 2px rgba(16,36,43,.04);
}
*{box-sizing:border-box}
body{margin:0;font-family:-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,Helvetica,Arial,sans-serif;
  color:var(--ink);background:var(--bg);font-size:15px;line-height:1.5}
a{color:var(--brand);text-decoration:none}
h1,h2,h3{margin:0 0 .4em}
h1{font-size:22px}h2{font-size:17px}

/* ---------- barra superior ---------- */
header.top{display:flex;align-items:center;gap:18px;background:var(--navy);
  border-bottom:3px solid var(--gold);padding:10px 20px;position:sticky;top:0;z-index:20}
header.top .logo{display:flex;align-items:center;gap:10px;font-weight:700;color:#fff}
header.top .logo img{height:34px;width:auto;display:block}
header.top .logo .nombre{font-size:16px;color:#fff}
nav.tabs{display:flex;gap:4px;flex-wrap:wrap}
nav.tabs a{padding:7px 14px;border-radius:20px;color:#cdd6e6;font-weight:600;font-size:14px}
nav.tabs a:hover{background:rgba(255,255,255,.12);color:#fff}
nav.tabs a.act{background:var(--gold);color:var(--navy)}
nav.tabs a .badge{background:var(--err);color:#fff;border-radius:10px;padding:0 6px;font-size:11px;margin-left:5px}
nav.tabs a.act .badge{background:var(--navy);color:#fff}
header.top .user{margin-left:auto;color:#aeb9cc;font-size:13px}
header.top .user b{color:#fff}
header.top .user a{margin-left:12px;font-weight:600;color:var(--gold)}

.wrap{max-width:1080px;margin:0 auto;padding:22px 20px 60px}
.card{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);
  box-shadow:var(--sh);padding:20px;margin-bottom:18px}
.sub{color:var(--muted);font-size:13.5px;margin:.2em 0 1em}
.flash{background:var(--warn-bg);border:1px solid #f0d9a8;color:#7a5a12;
  padding:11px 14px;border-radius:10px;margin-bottom:16px;font-size:14px}

/* ---------- formularios ---------- */
label{display:block;font-weight:600;font-size:13.5px;margin:12px 0 5px}
input[type=text],input[type=email],input[type=password],input[type=date],
input[type=time],input[type=color],select,textarea{
  width:100%;padding:10px 12px;border:1px solid var(--line);border-radius:9px;font-size:14px;
  font-family:inherit;background:#fff;color:var(--ink)}
input:focus,select:focus,textarea:focus{outline:2px solid var(--brand-2);outline-offset:0;border-color:transparent}
textarea{min-height:90px;resize:vertical}
.row{display:flex;gap:12px;flex-wrap:wrap;align-items:flex-end}
.row>div{flex:1;min-width:160px}
.btn{display:inline-flex;align-items:center;gap:6px;background:var(--brand);color:#fff;border:0;
  border-radius:9px;padding:10px 18px;font-weight:700;font-size:14px;cursor:pointer;font-family:inherit}
.btn:hover{background:#1a5c64}
.btn.sec{background:#eef4f5;color:var(--brand)}
.btn.sec:hover{background:#e0ecee}
.btn.gris{background:#eef1f3;color:var(--ink)}
.btn[disabled]{opacity:.5;cursor:not-allowed}

/* ---------- tablas ---------- */
table{width:100%;border-collapse:collapse;font-size:14px}
th{text-align:left;color:var(--muted);font-weight:600;font-size:12.5px;text-transform:uppercase;
  letter-spacing:.03em;padding:8px 10px;border-bottom:1px solid var(--line)}
td{padding:10px;border-bottom:1px solid #eef2f3;vertical-align:top}
tr:last-child td{border-bottom:0}
.pill{display:inline-block;padding:2px 9px;border-radius:11px;font-size:12px;font-weight:600}
.pill.ok{background:var(--ok-bg);color:var(--ok)}
.pill.err{background:var(--err-bg);color:var(--err)}
.pill.otro{background:#eef2f4;color:var(--muted)}
.muted{color:var(--muted)}
.vacio{color:var(--muted);text-align:center;padding:30px;font-size:14px}

/* ---------- estadística rápida ---------- */
.stats{display:flex;gap:14px;flex-wrap:wrap;margin-bottom:8px}
.stat{flex:1;min-width:130px;background:#f8fbfb;border:1px solid var(--line);border-radius:10px;padding:14px}
.stat .n{font-size:26px;font-weight:800;color:var(--brand)}
.stat .l{color:var(--muted);font-size:13px}

/* ---------- login ---------- */
.login-bg{min-height:100vh;display:flex;align-items:center;justify-content:center;padding:20px}
.login-card{width:100%;max-width:360px}
.login-card .logo{justify-content:center;margin-bottom:8px}
.login-card .logo img{height:48px}

/* ====================== BUZÓN ====================== */
.buzon{display:grid;grid-template-columns:330px 1fr;gap:0;height:calc(100vh - 56px)}
.buzon aside{border-right:1px solid var(--line);background:var(--card);overflow-y:auto}
.buzon .filtros{padding:10px 12px;border-bottom:1px solid var(--line);display:flex;gap:6px;flex-wrap:wrap}
.conv{padding:12px 14px;border-bottom:1px solid #eef2f3;cursor:pointer}
.conv:hover{background:#f6fafa}
.conv.sel{background:#eaf4f5}
.conv .nom{font-weight:700;font-size:14px;display:flex;justify-content:space-between;align-items:center}
.conv .prev{color:var(--muted);font-size:13px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;margin-top:2px}
.conv .punto{width:9px;height:9px;border-radius:50%;background:var(--brand)}
.buzon main{display:flex;flex-direction:column;background:#f0f4f5;overflow:hidden}
.chat-head{background:var(--card);border-bottom:1px solid var(--line);padding:12px 16px;font-weight:700}
.chat-head .estado{font-weight:500;font-size:12.5px;color:var(--muted)}
.hilo{flex:1;overflow-y:auto;padding:18px;display:flex;flex-direction:column;gap:8px}
.msg{max-width:74%;padding:9px 13px;border-radius:14px;font-size:14px;white-space:pre-wrap;word-break:break-word}
.msg.in{background:#fff;border:1px solid var(--line);align-self:flex-start;border-bottom-left-radius:4px}
.msg.out{background:#d8f0ee;align-self:flex-end;border-bottom-right-radius:4px}
.msg .meta{display:block;font-size:11px;color:var(--muted);margin-top:4px}
.msg img{max-width:230px;border-radius:8px;display:block;margin-top:4px}
.responder{background:var(--card);border-top:1px solid var(--line);padding:12px 14px}
.responder .fila{display:flex;gap:8px;align-items:flex-end}
.responder textarea{min-height:44px;max-height:120px}
.aviso-cerrada{background:var(--warn-bg);border:1px solid #f0d9a8;color:#7a5a12;
  padding:10px 12px;border-radius:9px;font-size:13px;margin-bottom:10px}

@media(max-width:760px){
  .buzon{grid-template-columns:1fr}
  .buzon.ver-chat aside{display:none}
  .buzon:not(.ver-chat) main{display:none}
  header.top{flex-wrap:wrap;gap:8px 12px;padding:10px 14px}
  nav.tabs{order:3;width:100%}
  nav.tabs a{padding:6px 10px;font-size:13px}
  header.top .user{font-size:12px}
  .wrap{padding:16px 14px 50px}
}

/* ===================== BUZÓN MEJORADO ===================== */
.buzon aside .buscador{padding:9px 11px;border-bottom:1px solid var(--line);background:#fff}
.buzon aside .buscador input{width:100%;padding:8px 11px;border:1px solid var(--line);border-radius:10px;font-size:13px}
.carpetas{display:flex;flex-wrap:wrap;gap:5px;padding:9px 11px;border-bottom:1px solid var(--line);background:#fff;position:sticky;top:0;z-index:2}
.ftab{border:1px solid var(--line);background:#fff;color:var(--muted);border-radius:14px;padding:5px 11px;font-size:12.5px;font-weight:700;cursor:pointer;display:inline-flex;align-items:center;gap:5px}
.ftab:hover{background:#eef4f5}
.ftab.act{background:linear-gradient(120deg,var(--brand),var(--cyan));color:#fff;border-color:transparent}
.cb{border-radius:10px;padding:0 6px;font-size:11px;font-weight:800;color:#fff;line-height:1.5}
.cb.verde{background:#1f9d6b;font-size:10px}
.cb.rojo{background:#e23b3b;font-size:12px}
.ftab.act .cb.verde{background:#fff;color:#1f9d6b}
.ftab.act .cb.rojo{background:#fff;color:#e23b3b}
.conv .pind{color:#e23b3b;font-size:14px;line-height:0;vertical-align:middle}
.conv .chips{display:flex;gap:4px;flex-wrap:wrap;margin-top:4px}
.mini{font-size:10px;font-weight:700;padding:1px 7px;border-radius:9px}
.mini.camp{background:#e6f0ff;color:#2657b0}
.mini.eti-seguimiento{background:#e6f0ff;color:#2657b0}
.mini.eti-reserva{background:#fff0d6;color:#9a6a12}
.mini.eti-escalado{background:#ffe8d4;color:#b5570c}
.mini.eti-resuelto{background:#e3f7ee;color:#1f9d6b}

/* Encabezado del chat con datos */
.cab-nom{font-weight:800;font-size:15px;color:var(--navy)}
.cab-sub{font-size:12px;color:var(--muted);margin-top:2px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}

/* Acciones de carpeta */
.acciones-carpeta{display:flex;align-items:center;gap:6px;flex-wrap:wrap;padding:8px 14px;background:#fff;border-bottom:1px solid var(--line)}
.acciones-carpeta .lbl{font-size:12px;color:var(--muted);font-weight:700}
.cbtn{border:1px solid var(--line);background:#fff;color:var(--muted);border-radius:13px;padding:4px 12px;font-size:12px;font-weight:700;cursor:pointer}
.cbtn:hover{background:#eef4f5}
.cbtn.act{background:var(--navy);color:#fff;border-color:transparent}

/* Banner de campaña */
.banner-campana{background:#e6f0ff;border-bottom:1px solid #cfe0ff;border-left:4px solid #2657b0;color:#234c8a;padding:9px 14px;font-size:13px}

/* Barra de IA */
.ia-bar{display:flex;flex-wrap:wrap;align-items:center;gap:9px;padding:8px 14px;border-bottom:1px solid var(--line);background:#f7fbfc}
.ia-bar .lbl{font-weight:800;font-size:12.5px;color:var(--navy)}
.ia-est{font-size:11.5px;color:var(--muted)}
.ia-seg{display:inline-flex;border:1px solid var(--line);border-radius:12px;overflow:hidden}
.ia-seg button{border:none;background:#fff;color:var(--muted);font-weight:700;font-size:11.5px;padding:5px 11px;cursor:pointer;border-left:1px solid var(--line)}
.ia-seg button:first-child{border-left:none}
.ia-seg button.act{background:linear-gradient(120deg,var(--brand),var(--cyan));color:#fff}

/* Propuesta de la IA */
.ia-prop{margin:10px 14px;border:1px solid var(--cyan);border-left:4px solid var(--brand);background:#f1fbfd;border-radius:12px;padding:10px 12px}
.ia-prop .ia-tag{font-weight:800;font-size:12px;color:var(--navy);margin-bottom:6px}
.ia-prop textarea{width:100%;box-sizing:border-box;border:1px solid var(--line);border-radius:9px;padding:8px 10px;font-size:13.5px;font-family:inherit;min-height:60px;resize:vertical}
.ia-prop .ia-btns{display:flex;gap:8px;margin-top:8px}

/* Visor de imágenes */
.media-img{max-width:230px;border-radius:8px;display:block;margin-top:4px;cursor:zoom-in}
#imgOverlay{display:none;position:fixed;inset:0;background:rgba(0,0,0,.85);z-index:9999;align-items:center;justify-content:center;flex-direction:column;gap:14px}
#imgOverlay img{max-width:95vw;max-height:85vh;object-fit:contain;border-radius:10px}
#imgOverlay .barra a,#imgOverlay .barra button{color:#fff;background:rgba(255,255,255,.18);border:0;cursor:pointer;font:600 14px system-ui,Arial;padding:9px 16px;border-radius:8px;text-decoration:none;margin:0 5px}

/* Modales */
.modal{display:none;position:fixed;inset:0;background:rgba(16,36,43,.4);z-index:50;align-items:center;justify-content:center}