/* CAJABOT - panel admin. Slate + esmeralda, limpio y compacto. */
:root{
  --bg:#0f172a; --bg2:#1e293b; --panel:#ffffff; --ink:#0f172a; --muted:#64748b;
  --line:#e2e8f0; --brand:#10b981; --brand-d:#059669; --danger:#ef4444; --warn:#f59e0b;
  --soft:#f8fafc; --radius:12px; --shadow:0 1px 3px rgba(15,23,42,.08),0 1px 2px rgba(15,23,42,.04);
}
*{box-sizing:border-box}
body{margin:0;font-family:system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;background:var(--soft);color:var(--ink);font-size:15px}
a{color:var(--brand-d);text-decoration:none}
a:hover{text-decoration:underline}

/* layout */
.layout{display:flex;min-height:100vh}
.sidebar{width:240px;background:var(--bg);color:#cbd5e1;display:flex;flex-direction:column;position:fixed;inset:0 auto 0 0;padding:18px 0}
.sidebar .brand{font-weight:800;font-size:20px;color:#fff;padding:6px 22px 18px;letter-spacing:.5px}
.sidebar .brand span{color:var(--brand)}
.sidebar nav{display:flex;flex-direction:column;gap:2px;padding:0 10px}
.sidebar nav a{color:#cbd5e1;padding:10px 14px;border-radius:9px;display:flex;align-items:center;gap:10px;font-weight:500}
.sidebar nav a:hover{background:#172033;text-decoration:none;color:#fff}
.sidebar nav a.active{background:var(--brand);color:#04241a;font-weight:700}
.sidebar .spacer{flex:1}
.sidebar .foot{padding:12px 22px;font-size:12px;color:#64748b;border-top:1px solid #172033}
.content{margin-left:240px;flex:1;padding:26px 32px;max-width:1200px}

.topbar{display:flex;align-items:center;justify-content:space-between;margin-bottom:22px}
.topbar h1{font-size:22px;margin:0}
.muted{color:var(--muted)}

/* botones */
.btn{display:inline-flex;align-items:center;gap:7px;background:var(--brand);color:#04241a;border:0;border-radius:9px;padding:9px 16px;font-weight:700;cursor:pointer;font-size:14px}
.btn:hover{background:var(--brand-d);color:#fff;text-decoration:none}
.btn.ghost{background:#fff;color:var(--ink);border:1px solid var(--line)}
.btn.ghost:hover{background:var(--soft);color:var(--ink)}
.btn.danger{background:var(--danger);color:#fff}
.btn.sm{padding:6px 11px;font-size:13px;border-radius:7px}

/* cards / grid */
.cards{display:grid;grid-template-columns:repeat(auto-fit,minmax(180px,1fr));gap:16px;margin-bottom:24px}
.card{background:var(--panel);border:1px solid var(--line);border-radius:var(--radius);padding:18px;box-shadow:var(--shadow)}
.stat .k{font-size:13px;color:var(--muted);font-weight:600}
.stat .v{font-size:28px;font-weight:800;margin-top:4px}
.stat .v.brand{color:var(--brand-d)}
.stat .v.warn{color:var(--warn)}
.stat .v.danger{color:var(--danger)}
.panel{background:var(--panel);border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow);margin-bottom:22px}
.panel .head{padding:14px 18px;border-bottom:1px solid var(--line);font-weight:700;display:flex;justify-content:space-between;align-items:center}
.panel .body{padding:18px}

/* tablas */
table{width:100%;border-collapse:collapse;font-size:14px}
th,td{text-align:left;padding:11px 14px;border-bottom:1px solid var(--line);vertical-align:middle}
th{font-size:12px;text-transform:uppercase;letter-spacing:.4px;color:var(--muted)}
tr:last-child td{border-bottom:0}
.thumb{width:46px;height:46px;border-radius:8px;object-fit:cover;background:var(--soft);border:1px solid var(--line)}

/* badges */
.tag{display:inline-block;padding:3px 10px;border-radius:999px;font-size:12px;font-weight:700}
.tag.green{background:#dcfce7;color:#166534}
.tag.gray{background:#f1f5f9;color:#475569}
.tag.amber{background:#fef3c7;color:#92400e}
.tag.red{background:#fee2e2;color:#991b1b}
.tag.blue{background:#dbeafe;color:#1e40af}

/* forms */
form .field{margin-bottom:15px}
label{display:block;font-weight:600;margin-bottom:6px;font-size:14px}
label .hint{font-weight:400;color:var(--muted);font-size:12px;display:block;margin-top:2px}
input[type=text],input[type=email],input[type=password],input[type=number],select,textarea{
  width:100%;padding:10px 12px;border:1px solid var(--line);border-radius:9px;font-size:14px;font-family:inherit;background:#fff}
textarea{min-height:90px;resize:vertical}
input:focus,select:focus,textarea:focus{outline:none;border-color:var(--brand);box-shadow:0 0 0 3px rgba(16,185,129,.15)}
.row2{display:grid;grid-template-columns:1fr 1fr;gap:16px}
.switch{display:flex;align-items:center;gap:9px;font-weight:600}
.checkline{display:flex;align-items:center;gap:9px}
.checkline input{width:auto}

/* flash */
.flash{padding:12px 16px;border-radius:9px;margin-bottom:16px;font-weight:600}
.flash.success{background:#dcfce7;color:#166534}
.flash.error{background:#fee2e2;color:#991b1b}

/* login */
.login-wrap{min-height:100vh;display:flex;align-items:center;justify-content:center;background:var(--bg)}
.login-card{background:#fff;border-radius:16px;padding:34px;width:360px;box-shadow:0 20px 50px rgba(0,0,0,.35)}
.login-card .brand{font-size:26px;font-weight:800;text-align:center;margin-bottom:4px}
.login-card .brand span{color:var(--brand)}
.login-card p.sub{text-align:center;color:var(--muted);margin:0 0 22px}

/* chat */
.chat{display:flex;flex-direction:column;gap:10px;padding:18px;background:var(--soft);border-radius:var(--radius);max-height:62vh;overflow-y:auto}
.bubble{max-width:74%;padding:9px 13px;border-radius:14px;font-size:14px;line-height:1.4;white-space:pre-wrap;word-break:break-word}
.bubble.user{align-self:flex-start;background:#fff;border:1px solid var(--line);border-bottom-left-radius:4px}
.bubble.assistant{align-self:flex-end;background:#d1fae5;border-bottom-right-radius:4px}
.bubble.system{align-self:center;background:#fef3c7;color:#92400e;font-size:12px}
.bubble img{max-width:200px;border-radius:8px;display:block;margin-top:6px}
.bubble .t{font-size:10px;color:var(--muted);margin-top:4px}

.variant-row{display:grid;grid-template-columns:1fr 1fr 90px 40px;gap:8px;margin-bottom:8px;align-items:center}
.empty{padding:40px;text-align:center;color:var(--muted)}
.pill-link{font-size:13px;color:var(--muted)}
@media(max-width:820px){.sidebar{width:64px}.sidebar .brand{font-size:0;padding:6px}.sidebar .brand span{font-size:22px}.sidebar nav a span{display:none}.content{margin-left:64px;padding:18px}.row2{grid-template-columns:1fr}}