/* Sistema de gestión ISP — estilos.
   Lenguaje visual inspirado en Claude (modo claro): lienzo cálido, superficies blancas con borde fino, acento celeste de Semeniuk Solutions,
   títulos en serif, íconos de línea, mucho aire y jerarquía por tamaño y peso (no por color).
   Color con significado único: verde = pagado/activo, azul acero = pendiente, rojo = vencido/baja, ámbar = recargo,
   ciruela = suspendido. Un solo botón primario por contexto. Sin tarjetas dentro de tarjetas. Responsive real. */
:root{
  color-scheme:light;
  --bg:#faf9f5; --card:#ffffff; --side:#f4f2ea; --hover:#efede4; --active:#e8e5d9; --soft:#f6f4ee;
  --line:#e8e6dc; --line-strong:#d6d3c4; --ink:#1f1e1d; --ink-2:#3d3b37; --mute:#73726c; --faint:#a8a69b;
  --accent:#0084bf; --accent-strong:#006a9a; --accent-bg:#e5f2f9; --accent-ring:rgba(0,132,191,.26); --btn:#0079b0;
  --blue:#3f6f9a; --blue-bg:#eaf1f7; --navy:#2c3039;
  --green:#4a7c59; --green-bg:#ecf3ec; --red:#b5483a; --red-bg:#fbeeeb;
  --orange:#b9701f; --orange-bg:#fbf1e2; --violet:#7a5c9e; --violet-bg:#f2eef7;
  --radius:12px; --radius-sm:8px;
  --shadow:0 1px 2px rgba(31,30,29,.04),0 1px 1px rgba(31,30,29,.03);
  --shadow-lg:0 12px 40px rgba(31,30,29,.16),0 2px 6px rgba(31,30,29,.06);
  --serif:"Tiempos Headline","Source Serif 4","Iowan Old Style","Palatino Linotype",Georgia,serif;
  --sans:"Styrene A",Inter,system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;
}
*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{margin:0;background:var(--bg);color:var(--ink);font:14.5px/1.55 var(--sans);-webkit-font-smoothing:antialiased;text-rendering:optimizeLegibility}
::selection{background:var(--accent-ring)}
a{color:var(--accent-strong);text-decoration:none;transition:color .12s}a:hover{color:var(--ink);text-decoration:underline;text-underline-offset:3px}
h1,h2,h3{margin:0;color:var(--ink)}
h1{font:500 30px/1.2 var(--serif);letter-spacing:-.01em;margin:0 0 6px}
h2{font-size:15px;font-weight:600;letter-spacing:-.005em;margin:0 0 12px}
h3{font-size:13.5px;font-weight:600;margin:0 0 8px;color:var(--ink-2)}
h1+p.mute,h1+p{max-width:68ch;margin:0 0 22px;font-size:14.5px}
p{margin:0 0 10px}
.mute{color:var(--mute)}.small{font-size:13px}.right{text-align:right}.nowrap{white-space:nowrap}
.sr{position:absolute;left:-9999px}
b,strong{font-weight:600}
:focus-visible{outline:2px solid var(--accent);outline-offset:2px;border-radius:6px}

/* ---- íconos ---- */
.i{width:18px;height:18px;flex:none;fill:none;stroke:currentColor;stroke-width:1.75;stroke-linecap:round;stroke-linejoin:round;vertical-align:-3px}

/* ---- layout ---- */
.shell{display:grid;grid-template-columns:268px 1fr;min-height:100vh}
.side{background:var(--side);border-right:1px solid var(--line);padding:14px 12px 12px;position:sticky;top:0;height:100vh;overflow:hidden;display:flex;flex-direction:column}
.brand{display:flex;align-items:center;gap:10px;padding:6px 8px 16px;font:500 17px/1.2 var(--serif);letter-spacing:-.005em;color:var(--ink)}
.brand .mark{width:38px;height:38px;flex:none;display:block;object-fit:contain}
.brand small{display:block;font:400 11.5px/1.2 var(--sans);color:var(--mute);margin-top:2px;letter-spacing:.01em}
.nav{flex:1;min-height:0;overflow-y:auto;margin:0 -6px;padding:0 6px;scrollbar-width:thin;scrollbar-color:var(--line-strong) transparent}
.nav a{display:flex;align-items:center;gap:10px;padding:7px 10px;border-radius:9px;color:var(--ink-2);margin-bottom:1px;font-size:14px;transition:background .12s,color .12s}
.nav a .i{color:var(--mute);transition:color .12s}
.nav a:hover{background:var(--hover);color:var(--ink);text-decoration:none}
.nav a:hover .i{color:var(--ink-2)}
.nav a.on{background:var(--active);color:var(--ink);font-weight:600}
.nav a.on .i{color:var(--accent-strong)}
.nav .sec{font-size:11.5px;font-weight:600;letter-spacing:.04em;color:var(--faint);padding:18px 10px 6px;text-transform:none}
.who{display:flex;align-items:center;gap:10px;margin-top:8px;padding:12px 8px 2px;border-top:1px solid var(--line);font-size:13px;flex:none}
.who .av{width:32px;height:32px;border-radius:50%;background:var(--accent-bg);color:var(--accent-strong);display:grid;place-items:center;font-weight:600;flex:none}
.who .nm{min-width:0;flex:1;line-height:1.25}.who .nm b{display:block;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.who form{margin:0}
.who .out{border:0;background:transparent;color:var(--mute);width:32px;height:32px;border-radius:8px;display:grid;place-items:center;cursor:pointer}
.who .out:hover{background:var(--hover);color:var(--ink)}
.main{padding:32px 40px 80px;min-width:0;width:100%}
.topbar{display:none}
.scrim{display:none}
@media (max-width:980px){.shell{grid-template-columns:232px 1fr}.main{padding:26px 24px 70px}}
@media (max-width:860px){
  .shell{grid-template-columns:1fr}
  .side{display:none;position:fixed;inset:0 auto 0 0;width:292px;max-width:86vw;z-index:40;box-shadow:var(--shadow-lg)}
  .side.open{display:flex}
  .side.open~.scrim{display:block;position:fixed;inset:0;background:rgba(31,30,29,.32);z-index:30}
  .topbar{display:flex;align-items:center;gap:12px;padding:10px 16px;background:var(--bg);border-bottom:1px solid var(--line);position:sticky;top:0;z-index:20;font-weight:600}
  .topbar .btn{padding:6px 8px}
  .main{padding:20px 16px 64px}
  h1{font-size:26px}
}

/* ---- tarjetas y grillas ---- */
.card{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);padding:20px;margin-bottom:16px;box-shadow:var(--shadow)}
.card.flush{padding:0;overflow:hidden}
.card>h2:first-child,.card>.head{margin-bottom:14px}
.card.flush>div:first-child>h2,.card.flush>.head>h2{margin:0}
.head{display:flex;justify-content:space-between;align-items:center;gap:12px;flex-wrap:wrap}
.head.small{font-size:13.5px}
.head select,.head input{width:auto;max-width:100%}
.head form.row{gap:8px}
.card .head.small a{color:var(--ink-2)}.card .head.small a:hover{color:var(--accent-strong)}
.card-pad{padding:12px 20px 18px}
.grid{display:grid;gap:16px}
.grid+.grid,.grid+.card,.card+.grid{margin-top:16px}
.cols2{grid-template-columns:repeat(2,minmax(0,1fr))}.cols3{grid-template-columns:repeat(3,minmax(0,1fr))}.cols4{grid-template-columns:repeat(4,minmax(0,1fr))}
@media (max-width:980px){.cols4{grid-template-columns:repeat(2,minmax(0,1fr))}}
@media (max-width:860px){.cols2,.cols3{grid-template-columns:1fr}}
@media (max-width:520px){.cols4{gap:10px}.stat{padding:13px 14px}.stat b{font-size:22px}}

/* indicadores: etiqueta chica arriba, cifra grande; el color solo marca el tipo con un punto */
.stat{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);padding:16px 18px;box-shadow:var(--shadow);position:relative}
.stat>span:first-child{display:flex;align-items:center;gap:8px;color:var(--mute);font-size:13px}
.stat>span:first-child::before{content:"";width:8px;height:8px;border-radius:50%;background:var(--blue);flex:none}
.stat b{font-size:26px;line-height:1.2;display:block;margin:6px 0 2px;font-weight:600;letter-spacing:-.02em;font-variant-numeric:tabular-nums}
.stat>span+b+span,.stat b~span{color:var(--mute);font-size:12.5px;display:block}
.stat.green>span:first-child::before{background:var(--green)}.stat.red>span:first-child::before{background:var(--red)}
.stat.blue>span:first-child::before{background:var(--blue)}.stat.orange>span:first-child::before{background:var(--orange)}
.stat.navy{background:var(--navy);border-color:var(--navy);color:#faf9f5}
.stat.navy>span:first-child{color:#c9c5b5}.stat.navy>span:first-child::before{background:var(--accent)}.stat.navy b~span{color:#c9c5b5}
.stat a{color:inherit;text-decoration:underline;text-underline-offset:3px}

/* etiquetas de estado: fondo suave + texto del mismo tono + punto */
.pill{font-family:var(--sans);display:inline-flex;align-items:center;gap:6px;padding:2px 10px 2px 8px;border-radius:99px;font-size:12px;font-weight:500;line-height:1.5;vertical-align:middle;white-space:nowrap;background:var(--blue-bg);color:var(--blue)}
.pill::before{content:"";width:6px;height:6px;border-radius:50%;background:currentColor;flex:none}
.pill.ok{background:var(--green-bg);color:var(--green)}.pill.bad{background:var(--red-bg);color:var(--red)}
.pill.fee{background:var(--orange-bg);color:var(--orange)}.pill.sus{background:var(--violet-bg);color:var(--violet)}
.pill.pen{background:var(--blue-bg);color:var(--blue)}.pill.gray{background:var(--hover);color:var(--mute)}

.alert{padding:11px 14px;border-radius:var(--radius-sm);margin-bottom:16px;border:1px solid;font-size:14px}
.alert.ok{background:var(--green-bg);border-color:#cfe0d1;color:#2f5a3b}.alert.err{background:var(--red-bg);border-color:#efcdc7;color:#8a2f24}
.alert.info{background:var(--blue-bg);border-color:#cfdeea;color:#2c5273}
.alert.warn{background:#fbf1dc;border-color:#ecd7a3;color:#744f0c}
.banner{background:var(--orange-bg);color:#7a4a12;border:1px solid #f0dcb8;border-radius:var(--radius-sm);padding:9px 14px;font-size:13px;margin-bottom:16px}

/* ---- formularios y botones ---- */
label{display:block;font-size:13px;font-weight:500;color:var(--ink-2);margin:0 0 5px}
input,select,textarea,button{font:inherit;color:var(--ink)}
input,select,textarea{width:100%;padding:9px 12px;border:1px solid var(--line-strong);border-radius:10px;background:#fff;transition:border-color .12s,box-shadow .12s}
input::placeholder,textarea::placeholder{color:var(--faint)}
input:hover,select:hover,textarea:hover{border-color:#bdb9a6}
input:focus,select:focus,textarea:focus{outline:0;border-color:var(--accent);box-shadow:0 0 0 3px var(--accent-ring)}
input[type=checkbox],input[type=radio]{width:auto;accent-color:var(--accent-strong)}
input[type=file]{padding:7px 10px;background:var(--soft)}
select{appearance:none;background:#fff url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='16' height='16' viewBox='0 0 24 24' fill='none' stroke='%2373726c' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='m6 9 6 6 6-6'/%3E%3C/svg%3E") no-repeat right 10px center;padding-right:34px}
textarea{resize:vertical;min-height:84px}
.field{margin-bottom:14px}
.row{display:flex;gap:12px;flex-wrap:wrap;align-items:flex-end}.row>.field{flex:1 1 170px;margin-bottom:0}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:7px;padding:8px 15px;border-radius:10px;border:1px solid var(--line-strong);background:#fff;cursor:pointer;font-weight:500;font-size:14px;line-height:1.35;text-decoration:none;color:var(--ink);box-shadow:var(--shadow);transition:background .12s,border-color .12s,box-shadow .12s,transform .06s}
.btn:hover{background:var(--soft);border-color:#bdb9a6;text-decoration:none;color:var(--ink)}
.btn:active{transform:translateY(1px)}
.btn:disabled,.btn[disabled]{opacity:.5;cursor:not-allowed}
.btn.primary{background:var(--btn);border-color:var(--btn);color:#fff;box-shadow:inset 0 -1px 0 rgba(0,0,0,.1),var(--shadow)}
.btn.primary:hover{background:var(--accent-strong);border-color:var(--accent-strong);color:#fff}
.btn.danger{color:var(--red);border-color:#e3bdb6;background:#fff}.btn.danger:hover{background:var(--red-bg);border-color:var(--red);color:var(--red)}
.btn.sm{padding:4px 11px;font-size:13px;border-radius:8px}
.actions{display:flex;gap:8px;flex-wrap:wrap}
form.inline{display:inline}

/* ---- tablas ---- */
.scroll{overflow-x:auto}
table{width:100%;border-collapse:collapse}
th,td{text-align:left;padding:11px 14px;border-bottom:1px solid var(--line);font-size:14px;vertical-align:top}
th{color:var(--mute);font-weight:500;font-size:12.5px;white-space:nowrap;background:var(--soft);border-bottom:1px solid var(--line)}
td.n,th.n{text-align:right;font-variant-numeric:tabular-nums;white-space:nowrap}
tbody tr{transition:background .1s}tbody tr:hover{background:#fbfaf6}
tbody tr:last-child td{border-bottom:0}
table a:not(.btn){color:var(--ink);font-weight:500}table a:not(.btn):hover{color:var(--accent-strong)}
.stat.violet>span:first-child::before{background:var(--violet)}
tfoot td{border-top:1px solid var(--line-strong);font-weight:600}
tr.link{cursor:pointer}tr.link:hover{background:var(--hover)}
.card.flush>table:first-child th:first-child,.card.flush>.scroll>table th:first-child{padding-left:20px}
.tabs{display:flex;gap:2px;border-bottom:1px solid var(--line);margin-bottom:20px;flex-wrap:wrap}
.tabs a{padding:9px 14px;border-bottom:2px solid transparent;color:var(--mute);font-weight:500;margin-bottom:-1px}
.tabs a.on{color:var(--ink);border-bottom-color:var(--accent);font-weight:600}.tabs a:hover{text-decoration:none;color:var(--ink)}

/* estado de cuenta: una tarjeta por cuota; la franja lateral solo si tiene estado */
.due{border:1px solid var(--line);border-left:3px solid var(--blue);border-radius:var(--radius);padding:14px 16px;margin-bottom:10px;background:var(--card);box-shadow:var(--shadow)}
.due.paid{border-left-color:var(--green)}.due.overdue{border-left-color:var(--red)}.due.pending{border-left-color:var(--blue)}
.due .top{display:flex;justify-content:space-between;gap:10px;flex-wrap:wrap;align-items:center}
.due .fee{margin-top:10px;border:1px solid #f0dcb8;border-left:3px solid var(--orange);border-radius:var(--radius-sm);padding:9px 12px;background:var(--orange-bg)}
.due .why{font-size:13px;color:var(--mute);margin-top:4px}
.money{font-variant-numeric:tabular-nums;font-weight:600}

/* gráficos del panel */
.track{height:8px;border-radius:99px;background:var(--hover);overflow:hidden}
.bar{height:8px;border-radius:99px;background:var(--blue);transition:width .3s}
svg polyline{stroke-linejoin:round;stroke-linecap:round}
svg.fluid{width:100%;height:240px;display:block}svg.fluid *{vector-effect:non-scaling-stroke}

/* diálogos */
dialog{border:1px solid var(--line);border-radius:16px;padding:24px;max-width:540px;width:calc(100% - 32px);background:var(--card);color:var(--ink);box-shadow:var(--shadow-lg)}
dialog::backdrop{background:rgba(31,30,29,.38);backdrop-filter:blur(2px)}
dialog h2{margin-bottom:14px;font:500 20px/1.25 var(--serif)}

/* buscador con resultados en vivo */
.item{display:block;padding:10px 14px;border-bottom:1px solid var(--line);color:var(--ink)}.item:hover{background:var(--hover);text-decoration:none}

/* acceso */
.login{max-width:400px;margin:11vh auto 0;padding:0 20px}
.login .mark{width:84px;height:84px;display:block;object-fit:contain;margin-bottom:14px}
.login h1{font-size:32px}.login .card{padding:24px;margin-top:22px}

@media print{.side,.topbar,.scrim,.actions,.btn,.noprint{display:none!important}.shell{display:block}.main{padding:0;max-width:none}body{background:#fff}.card,.stat{box-shadow:none}}