/* =====================================================================
   Asistente Personal · hoja de estilos única
   ===================================================================== */
:root{
  --bg:#f6f7f9; --panel:#ffffff; --panel-2:#fbfcfd; --border:#e4e7ec;
  --text:#141a1f; --muted:#6b7480; --accent:#1f6feb; --accent-soft:#e8f0fe;
  --ok:#0f9d58; --warn:#e8890c; --danger:#dc2626; --purple:#7c3aed;
  --radius:12px; --shadow:0 1px 2px rgba(16,24,40,.05),0 4px 14px rgba(16,24,40,.05);
}
@media (prefers-color-scheme: dark){
  :root{
    --bg:#0f1216; --panel:#161a20; --panel-2:#1b2027; --border:#272d36;
    --text:#e7ebf0; --muted:#8f99a6; --accent:#4d8dff; --accent-soft:#17233a;
    --shadow:0 1px 2px rgba(0,0,0,.4),0 6px 20px rgba(0,0,0,.35);
  }
}
*{box-sizing:border-box}
html,body{margin:0;padding:0}
body{
  background:var(--bg); color:var(--text);
  font:15px/1.55 -apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,Helvetica,Arial,sans-serif;
  -webkit-font-smoothing:antialiased;
}
a{color:var(--accent);text-decoration:none}
a:hover{text-decoration:underline}
h1,h2,h3{margin:0 0 .5em;line-height:1.25}
h1{font-size:22px} h2{font-size:17px} h3{font-size:15px}

/* ---------- Layout ---------- */
.topbar{
  position:sticky;top:0;z-index:50;display:flex;align-items:center;gap:18px;
  padding:0 18px;height:56px;background:var(--panel);border-bottom:1px solid var(--border);
}
.brand{font-weight:700;letter-spacing:-.01em;display:flex;align-items:center;gap:8px;white-space:nowrap}
.brand .dot{width:9px;height:9px;border-radius:50%;background:var(--ok);box-shadow:0 0 0 3px rgba(15,157,88,.18)}
.nav{display:flex;gap:2px;flex:1;overflow-x:auto}
.nav a{
  padding:7px 12px;border-radius:8px;color:var(--muted);font-weight:500;font-size:14px;white-space:nowrap
}
.nav a:hover{background:var(--panel-2);color:var(--text);text-decoration:none}
.nav a.on{background:var(--accent-soft);color:var(--accent)}
.userbox{display:flex;align-items:center;gap:10px;font-size:13px;color:var(--muted);white-space:nowrap}
.wrap{max-width:1120px;margin:0 auto;padding:20px 18px 60px}
.wrap.narrow{max-width:820px}

/* ---------- Tarjetas ---------- */
.card{background:var(--panel);border:1px solid var(--border);border-radius:var(--radius);
      box-shadow:var(--shadow);padding:18px;margin-bottom:16px}
.card h2{display:flex;align-items:center;gap:8px}
.grid{display:grid;gap:12px}
.grid.kpis{grid-template-columns:repeat(auto-fit,minmax(150px,1fr))}
.kpi{background:var(--panel);border:1px solid var(--border);border-radius:var(--radius);padding:14px 16px}
.kpi .n{font-size:26px;font-weight:700;letter-spacing:-.02em}
.kpi .l{font-size:12px;color:var(--muted);text-transform:uppercase;letter-spacing:.05em;margin-top:2px}
.kpi.rojo .n{color:var(--danger)} .kpi.naranja .n{color:var(--warn)} .kpi.verde .n{color:var(--ok)}

/* ---------- Chips y badges ---------- */
.chip{display:inline-flex;align-items:center;gap:5px;padding:2px 9px;border-radius:999px;
      font-size:12px;font-weight:600;border:1px solid transparent;white-space:nowrap}
.chip.nuevo{background:var(--accent-soft);color:var(--accent)}
.chip.en_curso{background:rgba(124,58,237,.12);color:var(--purple)}
.chip.esperando_terceros{background:rgba(232,137,12,.14);color:var(--warn)}
.chip.trabado{background:rgba(220,38,38,.12);color:var(--danger)}
.chip.hecho{background:rgba(15,157,88,.14);color:var(--ok)}
.chip.cancelado{background:var(--panel-2);color:var(--muted)}
.chip.urgente{background:rgba(220,38,38,.14);color:var(--danger)}
.chip.alta{background:rgba(232,137,12,.14);color:var(--warn)}
.chip.media{background:var(--panel-2);color:var(--muted)}
.chip.baja{background:var(--panel-2);color:var(--muted)}
.chip.cobrable{background:rgba(15,157,88,.12);color:var(--ok)}
.vencido{color:var(--danger);font-weight:600}
.hoy{color:var(--warn);font-weight:600}

/* ---------- Tabla ---------- */
.tabla-wrap{overflow-x:auto;-webkit-overflow-scrolling:touch}
table{width:100%;border-collapse:collapse;font-size:14px}
th{
  text-align:left;font-size:11px;text-transform:uppercase;letter-spacing:.06em;color:var(--muted);
  font-weight:600;padding:8px 10px;border-bottom:1px solid var(--border);white-space:nowrap
}
td{padding:10px;border-bottom:1px solid var(--border);vertical-align:top}
tbody tr:hover{background:var(--panel-2)}
td .sub{font-size:12px;color:var(--muted)}
.codigo{font-family:ui-monospace,SFMono-Regular,Menlo,monospace;font-size:12px;color:var(--muted)}

/* ---------- Formularios ---------- */
label{display:block;font-size:13px;font-weight:600;margin:12px 0 5px}
input,select,textarea{
  width:100%;padding:9px 11px;border:1px solid var(--border);border-radius:9px;
  background:var(--panel-2);color:var(--text);font:inherit;font-size:14px
}
input:focus,select:focus,textarea:focus{outline:2px solid var(--accent);outline-offset:-1px;border-color:transparent}
textarea{min-height:80px;resize:vertical}
.row{display:flex;gap:12px;flex-wrap:wrap}
.row>*{flex:1;min-width:170px}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:7px;
  padding:9px 16px;border-radius:9px;border:1px solid var(--border);background:var(--panel-2);
  color:var(--text);font:inherit;font-weight:600;font-size:14px;cursor:pointer;width:auto
}
.btn:hover{background:var(--border)}
.btn.primary{background:var(--accent);border-color:var(--accent);color:#fff}
.btn.primary:hover{filter:brightness(1.08)}
.btn.sm{padding:5px 10px;font-size:13px}
.btn:disabled{opacity:.55;cursor:not-allowed}
.alerta{padding:11px 14px;border-radius:10px;font-size:14px;margin-bottom:14px}
.alerta.error{background:rgba(220,38,38,.1);color:var(--danger);border:1px solid rgba(220,38,38,.25)}
.alerta.ok{background:rgba(15,157,88,.1);color:var(--ok);border:1px solid rgba(15,157,88,.25)}
.alerta.info{background:var(--accent-soft);color:var(--accent);border:1px solid rgba(31,111,235,.22)}
.muted{color:var(--muted)}
.small{font-size:13px}

/* ---------- Login ---------- */
.login-wrap{min-height:100vh;display:grid;place-items:center;padding:20px}
.login-card{width:100%;max-width:390px;background:var(--panel);border:1px solid var(--border);
            border-radius:16px;box-shadow:var(--shadow);padding:30px}

/* ---------- CHAT ---------- */
.chat-shell{display:flex;flex-direction:column;height:calc(100vh - 56px)}
.chat-body{flex:1;overflow-y:auto;padding:22px 18px 10px}
.chat-inner{max-width:820px;margin:0 auto}
.msg{display:flex;gap:12px;margin-bottom:20px;align-items:flex-start}
.msg .av{width:30px;height:30px;border-radius:9px;flex:0 0 30px;display:grid;place-items:center;
         font-size:13px;font-weight:700;color:#fff;background:var(--accent)}
.msg.yo .av{background:var(--muted)}
.msg .bubble{flex:1;min-width:0}
.msg .who{font-size:12px;font-weight:700;color:var(--muted);margin-bottom:3px}
.msg .texto{white-space:pre-wrap;word-wrap:break-word}
.msg .texto code{background:var(--panel-2);padding:1px 5px;border-radius:5px;font-size:13px}
.acciones{margin-top:9px;display:flex;flex-direction:column;gap:5px}
.accion{display:flex;align-items:center;gap:7px;font-size:12.5px;color:var(--muted);
        background:var(--panel);border:1px solid var(--border);border-radius:8px;padding:5px 10px}
.accion .i{width:15px;text-align:center}
.accion.err{color:var(--danger);border-color:rgba(220,38,38,.3)}
.chat-foot{border-top:1px solid var(--border);background:var(--panel);padding:12px 18px 16px}
.composer{max-width:820px;margin:0 auto;display:flex;gap:9px;align-items:flex-end}
.composer textarea{min-height:46px;max-height:190px;border-radius:12px;padding:12px 14px;background:var(--panel-2)}
.composer .btn{height:46px;padding:0 18px}
.hint{max-width:820px;margin:8px auto 0;font-size:12px;color:var(--muted);text-align:center}
.sugerencias{display:flex;gap:8px;flex-wrap:wrap;justify-content:center;margin-top:18px}
.sug{background:var(--panel);border:1px solid var(--border);border-radius:999px;padding:7px 14px;
     font-size:13px;cursor:pointer;color:var(--muted)}
.sug:hover{border-color:var(--accent);color:var(--accent)}
.bienvenida{text-align:center;padding:34px 10px;color:var(--muted)}
.bienvenida h2{color:var(--text);font-size:20px}
.dots span{display:inline-block;width:6px;height:6px;margin-right:3px;border-radius:50%;
           background:var(--muted);animation:bl 1.2s infinite}
.dots span:nth-child(2){animation-delay:.2s}.dots span:nth-child(3){animation-delay:.4s}
@keyframes bl{0%,60%,100%{opacity:.25}30%{opacity:1}}

/* ---------- Bitácora ---------- */
.timeline{list-style:none;padding:0;margin:0}
.timeline li{position:relative;padding:0 0 16px 20px;border-left:2px solid var(--border)}
.timeline li:last-child{border-left-color:transparent}
.timeline li::before{content:"";position:absolute;left:-6px;top:5px;width:10px;height:10px;
                     border-radius:50%;background:var(--border)}
.timeline .meta{font-size:12px;color:var(--muted);margin-bottom:2px}

@media(max-width:640px){
  .wrap{padding:14px 12px 50px}
  .topbar{gap:10px;padding:0 12px}
  .userbox span.nombre{display:none}
  .kpi .n{font-size:22px}
}