:root{
  --bg:#f4f6fb;--card:#fff;--ink:#0f172a;--text:#334155;--muted:#64748b;--line:#e2e8f0;--line2:#eef2f7;
  --brand:#4f46e5;--brand2:#4338ca;--brand-soft:#eef2ff;
  --ok:#047857;--okbg:#d1fae5;--warnbg:#fef3c7;--warn:#92400e;--err:#b91c1c;--errbg:#fee2e2;
  --nav:#0f172a;--gap:20px;--r:14px;
  --shadow:0 1px 2px rgba(15,23,42,.05),0 12px 28px -18px rgba(15,23,42,.18);
  --ring:0 0 0 3px rgba(79,70,229,.22)
}
*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
[hidden]{display:none!important}
body{margin:0;background:var(--bg);color:var(--text);font:15px/1.6 -apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,Helvetica,Arial,sans-serif;-webkit-font-smoothing:antialiased}
body.plain{display:grid;min-height:100vh;place-items:center;padding:var(--gap)}
main{max-width:1120px;margin:0 auto;padding:32px var(--gap) 56px}
h1{font-size:26px;line-height:1.2;letter-spacing:-.02em;color:var(--ink);margin:0;overflow-wrap:anywhere}
h2{font-size:16px;line-height:1.3;color:var(--ink);margin:0 0 14px}
p{margin:0 0 12px}
code{background:#eef0f6;border-radius:5px;padding:1px 6px;font-size:13px;overflow-wrap:anywhere}
a{color:var(--brand)}
.sub{color:var(--muted);margin:6px 0 0;font-size:14px}

/* Cabecera */
.top{display:flex;flex-wrap:wrap;align-items:center;gap:10px 22px;background:linear-gradient(180deg,#111a33,var(--nav));color:#fff;padding:12px var(--gap);box-shadow:0 1px 0 rgba(255,255,255,.06) inset,0 8px 24px -16px rgba(15,23,42,.6)}
.top .brand{display:flex;align-items:center;gap:10px;margin-right:6px}
.top .mark{display:block;padding:7px;width:34px;height:34px;border-radius:10px;background:linear-gradient(135deg,#6366f1,#4338ca);color:#fff;box-shadow:0 6px 14px -6px rgba(99,102,241,.8)}
.top .logo{font-size:17px;letter-spacing:-.01em}
.top nav{display:flex;gap:4px;flex:1;flex-wrap:wrap}
.top nav a{color:#cbd5e1;text-decoration:none;padding:7px 13px;border-radius:9px;font-weight:500;transition:background .15s,color .15s}
.top nav a:hover{background:rgba(255,255,255,.08);color:#fff}
.top nav a.on{background:rgba(255,255,255,.14);color:#fff}
.top .btn.small{background:transparent;border-color:rgba(255,255,255,.25);color:#e2e8f0}
.top .btn.small:hover{background:rgba(255,255,255,.1)}

/* Estructura */
.head{display:flex;flex-wrap:wrap;align-items:flex-start;justify-content:space-between;gap:var(--gap);margin-bottom:var(--gap)}
.head>*{min-width:0}
.head>div,.head>h1{flex:1}
.muted{font-size:14px;font-weight:400;color:var(--muted)}
.box{background:var(--card);border:1px solid var(--line);border-radius:var(--r);padding:24px;margin-bottom:var(--gap);min-width:0;box-shadow:var(--shadow)}
.box.narrow{max-width:560px}
.box.empty{text-align:center;padding:48px 24px}
.box.empty p{color:var(--muted)}
.grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(min(100%,400px),1fr));gap:var(--gap);align-items:start}
.grid>div{min-width:0}
.login{max-width:400px;width:100%;margin:0 auto;text-align:center;padding:36px 32px}
.login form{text-align:left;margin-top:22px}
.login-mark{display:inline-grid;place-items:center;width:52px;height:52px;border-radius:15px;margin-bottom:14px;background:linear-gradient(135deg,#6366f1,#4338ca);color:#fff;box-shadow:0 12px 24px -10px rgba(79,70,229,.7)}
.login-mark .mark{width:26px;height:26px}
.unsub{max-width:460px;text-align:center}

/* Estadísticas */
.stats{display:grid;grid-template-columns:repeat(auto-fit,minmax(min(100%,200px),1fr));gap:var(--gap);margin-bottom:var(--gap)}
.stat{display:flex;flex-direction:column;gap:2px;background:var(--card);border:1px solid var(--line);border-radius:var(--r);padding:18px 20px;box-shadow:var(--shadow);min-width:0}
.stat .n{font-size:30px;line-height:1.1;font-weight:700;letter-spacing:-.02em;color:var(--ink)}
.stat .n.sm{font-size:22px;line-height:1.4}
.stat .l{font-size:13px;color:var(--muted)}

/* Formularios */
label{display:block;margin:0 0 16px;font-weight:600;font-size:14px;color:var(--ink)}
label.check{display:flex;gap:9px;align-items:flex-start;font-weight:400;color:var(--text)}
label.check input{width:auto;margin-top:4px;accent-color:var(--brand)}
label.check.small{display:inline-flex;font-size:12px;margin:0}
label.social{display:grid;grid-template-columns:130px minmax(0,1fr);gap:10px;align-items:center;margin-bottom:10px}
label.social span{display:flex;align-items:center;gap:7px;font-weight:600}
input[type=text],input[type=email],input[type=url],input[type=password],input[type=number],input[type=search],select,textarea{display:block;width:100%;margin-top:6px;padding:10px 12px;border:1px solid #cbd5e1;border-radius:10px;font:inherit;font-weight:400;background:#fff;color:var(--ink);transition:border-color .15s,box-shadow .15s}
input::placeholder,textarea::placeholder{color:#94a3b8}
input[type=color]{display:block;margin-top:6px;width:64px;height:40px;padding:3px;border:1px solid #cbd5e1;border-radius:10px;background:#fff;cursor:pointer}
textarea{resize:vertical;min-height:120px}
input:focus,select:focus,textarea:focus{outline:0;border-color:var(--brand);box-shadow:var(--ring)}
input[type=file]{display:block;width:100%;margin-top:6px;font:inherit;font-weight:400;color:var(--muted);min-width:0}
input[type=file]::file-selector-button{margin-right:12px;padding:8px 14px;border:1px solid #cbd5e1;border-radius:10px;background:#fff;color:var(--ink);font:inherit;font-weight:600;cursor:pointer;transition:background .15s}
input[type=file]::file-selector-button:hover{background:#f8fafc}
input[type=range]{display:block;width:100%;margin:10px 0 0;accent-color:var(--brand)}
fieldset{border:0;margin:0;padding:0;min-width:0}
legend{padding:0}

/* Logo */
.logo-box{border:1px solid var(--line);border-radius:12px;padding:18px;margin:0 0 16px;background:#fbfcfe}
.logo-box legend{font-weight:600;font-size:14px;color:var(--ink);padding:0 6px;margin-left:-6px}
.logo-stage{display:grid;place-items:center;min-height:110px;padding:22px;border-radius:12px;margin-bottom:14px;background:var(--brand);overflow:hidden}
.logo-stage img{display:block;max-width:100%;height:auto}
.logo-empty{color:rgba(255,255,255,.85);font-size:13px;text-align:center;overflow-wrap:anywhere}
.logo-box .hint{margin:8px 0 14px}
.range-top{display:flex;justify-content:space-between;gap:12px}
.range-top output{font-weight:600;color:var(--brand)}
.logo-box label:last-child{margin-bottom:0}

/* Editor de boletines */
main:has(.editor){max-width:1480px}
.editor{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1fr);gap:var(--gap);align-items:start}
.editor>.box{margin-bottom:0}
.editor-form textarea{min-height:52vh;font:14px/1.6 ui-monospace,SFMono-Regular,Menlo,Consolas,monospace}
.toolbar{display:flex;flex-wrap:wrap;align-items:center;gap:6px;margin:6px 0 8px}
.toolbar .sep{width:1px;height:22px;background:var(--line);margin:0 4px}
.toolbar .chip{font-weight:500;color:var(--brand);background:var(--brand-soft);border-color:#dbe0ff}
.actions-bar{display:flex;flex-wrap:wrap;gap:8px;position:sticky;bottom:0;margin-top:8px;padding:16px 0 2px;background:linear-gradient(rgba(255,255,255,0),#fff 28%)}
.editor-preview{position:sticky;top:16px;display:flex;flex-direction:column;min-width:0}
.pv-head{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-bottom:12px}
.pv-head h2{margin:0}
.seg{display:inline-flex;background:#eef2f7;border-radius:10px;padding:3px}
.seg button{border:0;background:transparent;font:inherit;font-size:13px;font-weight:600;color:var(--muted);padding:5px 12px;border-radius:8px;cursor:pointer}
.seg button.on{background:#fff;color:var(--ink);box-shadow:0 1px 2px rgba(15,23,42,.12)}
.pv-subject{display:flex;flex-direction:column;gap:2px;margin:0 0 12px;padding:10px 14px;background:#f8fafc;border:1px solid var(--line2);border-radius:10px;min-width:0}
.pv-subject strong{color:var(--ink);overflow-wrap:anywhere;min-height:1.6em}
.pv-frame{min-width:0}
.editor-preview iframe.preview{height:calc(100vh - 250px);min-height:440px}
.pv-mobile .pv-frame iframe.preview{max-width:390px;margin:0 auto}
@media (max-width:1000px){.editor{grid-template-columns:minmax(0,1fr)}.editor-preview{position:static}.editor-preview iframe.preview{height:520px;min-height:0}.editor-form textarea{min-height:320px}}

/* Botones */
.btn{display:inline-block;border:1px solid #cbd5e1;background:#fff;color:var(--ink);padding:9px 16px;border-radius:10px;font:inherit;font-weight:600;cursor:pointer;text-decoration:none;line-height:1.3;transition:background .15s,border-color .15s,box-shadow .15s,transform .05s;box-shadow:0 1px 1px rgba(15,23,42,.04)}
.btn:hover{background:#f8fafc;border-color:#94a3b8}
.btn:active{transform:translateY(1px)}
.btn:focus-visible{outline:0;box-shadow:var(--ring)}
.btn.primary{background:linear-gradient(180deg,#5b54ee,var(--brand));border-color:var(--brand2);color:#fff;box-shadow:0 8px 16px -10px rgba(79,70,229,.9)}
.btn.primary:hover{background:linear-gradient(180deg,#4f46e5,var(--brand2))}
.btn.danger{color:var(--err);border-color:#fecaca}
.btn.danger:hover{background:#fef2f2;border-color:#fca5a5}
.btn.small{padding:5px 11px;font-size:13px;border-radius:8px}
.btn.block{display:block;width:100%;text-align:center}
.btn[disabled]{opacity:.5;cursor:not-allowed}
form.inline{display:inline}
.hint{color:var(--muted);font-size:13px}
.notice{border-radius:12px;padding:12px 16px;margin-bottom:var(--gap);overflow-wrap:anywhere;border:1px solid transparent}
.notice.ok{background:var(--okbg);color:var(--ok);border-color:#a7f3d0}
.notice.err{background:var(--errbg);color:var(--err);border-color:#fecaca}

/* Etiquetas */
.tag{display:inline-flex;align-items:center;gap:6px;background:#eef2f7;color:#475569;border-radius:999px;padding:2px 11px;font-size:12px;font-weight:600;white-space:nowrap;vertical-align:middle}
.tag::before{content:"";width:6px;height:6px;border-radius:50%;background:currentColor;opacity:.6}
.tag.okc{background:var(--okbg);color:var(--ok)}
.tag.warn{background:var(--warnbg);color:var(--warn)}

/* Tablas */
.tablewrap{overflow-x:auto}
.box.tablewrap{padding:8px 12px}
table{width:100%;min-width:640px;border-collapse:collapse}
th,td{text-align:left;padding:13px 14px;border-bottom:1px solid var(--line2);vertical-align:middle;overflow-wrap:break-word}
tbody tr:last-child td{border-bottom:0}
tbody tr{transition:background .12s}
tbody tr:hover{background:#f8faff}
th{font-size:11.5px;text-transform:uppercase;letter-spacing:.06em;color:var(--muted);font-weight:600;border-bottom:1px solid var(--line)}
td.actions,th.actions{text-align:right}
td.em{max-width:300px;overflow-wrap:anywhere}
td.actions{min-width:230px}
.react{margin-top:6px;white-space:nowrap}
.react .check.small{align-items:center;color:var(--muted)}
td.actions>*{margin:2px 0}

/* Pestañas y búsqueda */
.tabs{display:flex;gap:6px;margin:0 0 var(--gap);border-bottom:1px solid var(--line)}
.tabs a{padding:9px 16px;text-decoration:none;color:var(--muted);border-bottom:2px solid transparent;margin-bottom:-1px;font-weight:500;transition:color .15s}
.tabs a:hover{color:var(--ink)}
.tabs a.on{color:var(--brand);border-color:var(--brand);font-weight:600}
.search{display:flex;gap:8px;margin-bottom:var(--gap)}
.search input{margin:0}

/* Progreso y vista previa */
.bar{height:12px;background:#e2e8f0;border-radius:999px;overflow:hidden;margin-bottom:14px}
.bar i{display:block;height:100%;width:0;background:linear-gradient(90deg,#6366f1,var(--brand));border-radius:999px;transition:width .3s}
iframe.preview{display:block;width:100%;height:560px;border:1px solid var(--line);border-radius:12px;background:#f3f4f6}

@media (max-width:560px){
  main{padding-top:20px}
  h1{font-size:22px}
  .top .brand{margin-right:auto}
  .top nav{order:3;flex:1 1 100%}
  table.stack{min-width:0}
  table.stack thead{display:none}
  table.stack tr{display:block;padding:12px 0;border-bottom:1px solid var(--line)}
  table.stack tr:last-child{border-bottom:0}
  table.stack td{display:flex;gap:12px;justify-content:space-between;border:0;padding:4px 0;text-align:right;overflow-wrap:anywhere}
  table.stack td::before{content:attr(data-label);font-weight:600;color:var(--muted);text-align:left;flex:none}
  table.stack td.actions{flex-wrap:wrap;justify-content:flex-start;white-space:normal}
  table.stack td.actions::before{content:none}
  .box{padding:18px}
  .box.tablewrap{padding:6px 14px}
  .login{padding:28px 20px}
  label.social{grid-template-columns:1fr}
  .head .btn{width:100%;text-align:center}
  .stat .n{font-size:26px}
}