:root{
  --ink:#222; --muted:#777; --line:#cccccc; --line2:#e3e3e3;
  --bg:#f5f6f8; --panel:#fff;
  --accent:#e3791b; --accent-2:#2f6db3; --accent-weak:#fdf0e2;
  --ok:#3c7d4f; --warn:#b06a00; --bad:#a23b3b; --radius:8px;
}
*{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:14px;line-height:1.45}
a{color:var(--accent-2);text-decoration:none}
a:hover{text-decoration:underline}
h1{font-size:20px;margin:0 0 4px}
h2{font-size:15px;margin:18px 0 10px}
.sub{color:var(--muted);margin:0 0 16px;font-size:13px}

/* shell */
.app{display:flex;min-height:100vh}
.sidebar{width:220px;background:#16314e;color:#dfe7f1;flex-shrink:0;padding:14px 0;
  position:sticky;top:0;height:100vh;overflow:auto}
.brand{padding:6px 16px 14px;border-bottom:1px solid #2c4f78;margin-bottom:8px}
.brand b{color:#fff;font-size:15px;display:block}
.brand span{display:block;color:#9fb3cc;font-size:11px;margin-top:2px}
.navsec{padding:10px 16px 4px;color:#7f9ab8;font-size:10px;letter-spacing:.08em;text-transform:uppercase}
.navitem{display:block;padding:8px 16px;color:#d4deea;font-size:13px;border-left:3px solid transparent}
.navitem:hover{background:#1f456e;color:#fff;text-decoration:none}
.navitem.active{background:#1f456e;color:#fff;border-left-color:var(--accent)}
.navitem-soon{display:block;padding:8px 16px;font-size:13px;color:#6f86a3;cursor:default}
.navitem-soon em{font-style:normal;font-size:9px;text-transform:uppercase;letter-spacing:.05em;
  border:1px solid #2c4f78;border-radius:3px;padding:0 4px;margin-left:6px;color:#9fb3cc}

.main{flex:1;min-width:0;display:flex;flex-direction:column}
.topbar{height:54px;background:var(--panel);border-bottom:1px solid var(--line);display:flex;
  align-items:center;justify-content:space-between;padding:0 20px;position:sticky;top:0;z-index:5}
.crumbs{color:var(--muted);font-size:12px}
.topbar .right{display:flex;align-items:center;gap:12px}
.topbar-left{display:flex;align-items:center;gap:10px;min-width:0}
.nav-toggle{display:none;background:#fff;border:1px solid var(--line);border-radius:6px;
  padding:4px 10px;font-size:16px;line-height:1;cursor:pointer;color:var(--ink)}
.nav-toggle:hover{background:#f3f3f3}
.nav-backdrop{display:none;position:fixed;inset:0;background:rgba(10,20,35,.45);z-index:20}
.pill{border:1px solid var(--line);border-radius:999px;padding:4px 10px;font-size:12px;color:var(--muted);background:#fafafa}
.content{padding:22px 26px;max-width:1100px;width:100%}

/* components */
.card{background:var(--panel);border:1px solid var(--line2);border-radius:var(--radius);padding:16px;margin-bottom:16px}
.btn{display:inline-block;border:1px solid var(--line);background:#fff;border-radius:6px;
  padding:8px 14px;font-size:13px;color:var(--ink);cursor:pointer}
.btn:hover{background:#f3f3f3}
.btn-primary{background:var(--accent);border-color:var(--accent);color:#fff}
.btn-primary:hover{background:#c5681a}
.btn-sm{padding:5px 10px;font-size:12px}
.btn-block{width:100%}

.badge{display:inline-block;padding:2px 9px;border-radius:999px;font-size:11px;border:1px solid}
.b-ok{color:var(--ok);border-color:#bcd9c4;background:#eef6f0}
.b-warn{color:var(--warn);border-color:#e6cfa3;background:#fbf3e3}
.b-bad{color:var(--bad);border-color:#e3b3b3;background:#fbeeee}
.b-mute{color:var(--muted);border-color:var(--line);background:#f4f4f4}

.stats{display:grid;grid-template-columns:repeat(auto-fit,minmax(160px,1fr));gap:14px;margin-bottom:16px}
.stat{background:var(--panel);border:1px solid var(--line2);border-radius:var(--radius);padding:14px}
.stat .k{font-size:11px;color:var(--muted);text-transform:uppercase;letter-spacing:.04em}
.stat .v{font-size:26px;font-weight:700;margin-top:6px;color:var(--accent)}
.stat .hint{margin-top:4px}

/* progress bar (dashboard cobranza + weekly attendance) */
.bar{height:7px;background:#eceff3;border-radius:999px;overflow:hidden;margin:6px 0 4px}
.bar>i{display:block;height:100%;background:var(--accent);border-radius:999px;min-width:1px}

table{width:100%;border-collapse:collapse;font-size:13px}
th,td{text-align:left;padding:9px 10px;border-bottom:1px solid var(--line2)}
th{color:var(--muted);font-weight:600;font-size:11px;text-transform:uppercase;background:#fafafa}

/* login */
.login-wrap{min-height:100vh;display:flex;align-items:center;justify-content:center;background:#eef1f5}
.login-card{background:#fff;border:1px solid var(--line2);border-top:4px solid var(--accent);
  border-radius:10px;padding:28px;width:340px;box-shadow:0 6px 24px rgba(0,0,0,.06)}
.login-logo{font-size:24px;font-weight:800;color:var(--accent);text-align:center}
.login-sub{text-align:center;color:var(--muted);font-size:12px;margin-bottom:18px}
.login-card label{display:block;font-size:12px;color:var(--muted);margin:10px 0 4px}
.login-card input{width:100%;padding:9px 10px;border:1px solid var(--line);border-radius:6px;font-size:14px}
.login-card .btn-primary{margin-top:18px}
.alert{background:#fbeeee;border:1px solid #e3b3b3;color:var(--bad);border-radius:6px;padding:8px 10px;font-size:12px;margin-bottom:8px}

/* layout helpers */
.row{display:flex;gap:16px;flex-wrap:wrap}
.col{flex:1;min-width:0}
.mt0{margin-top:0}
.hint{font-size:11px;color:#9a9a9a}
.toolbar{display:flex;justify-content:space-between;align-items:center;gap:12px;flex-wrap:wrap;margin-bottom:14px}
.right-actions{display:flex;gap:8px;flex-wrap:wrap}

/* filters + form controls */
.filters{display:flex;gap:10px;flex-wrap:wrap;align-items:flex-end;background:#fafafa;border:1px solid var(--line2);
  border-radius:6px;padding:12px;margin-bottom:14px}
.field{display:flex;flex-direction:column;gap:4px}
.field label{font-size:11px;color:var(--muted)}
.field.search{flex:1;min-width:200px}
.ctrl,.field input,.field select,.field textarea{border:1px solid var(--line);border-radius:6px;padding:7px 9px;
  background:#fff;min-width:150px;color:#444;font:inherit}
.ctrl.sm{min-width:110px}
.field textarea{min-height:70px;resize:vertical}
.errorlist{list-style:none;margin:4px 0 0;padding:0;color:var(--bad);font-size:11px}
.req{color:var(--accent)}

/* table interactions */
tbody tr:hover{background:#fafcff}
.clickrow{cursor:pointer}
.muted-row{color:#999}

/* tabs */
.tabs{display:flex;gap:4px;border-bottom:1px solid var(--line2);margin-bottom:14px}
.tab{padding:8px 14px;font-size:13px;color:var(--muted);border-bottom:2px solid transparent;cursor:pointer;background:none;border-top:0;border-left:0;border-right:0}
.tab.active{color:var(--ink);border-bottom-color:var(--accent);font-weight:600}

/* key/value blocks */
.kv{display:grid;grid-template-columns:150px 1fr;gap:8px 14px;font-size:13px}
.kv .k{color:var(--muted)}

/* placeholders */
.imgph{background:repeating-linear-gradient(45deg,#efefef,#efefef 8px,#e6e6e6 8px,#e6e6e6 16px);
  border:1px solid var(--line2);border-radius:6px;display:flex;align-items:center;justify-content:center;
  color:#9a9a9a;font-size:12px}

/* messages */
.msg{border:1px solid var(--line2);border-radius:6px;padding:9px 12px;font-size:13px;margin-bottom:12px}
.msg-success{background:#eef6f0;border-color:#bcd9c4;color:var(--ok)}
.msg-error{background:#fbeeee;border-color:#e3b3b3;color:var(--bad)}
.msg-info{background:#eef3fb;border-color:#bcccde;color:var(--accent-2)}

.htmx-indicator{opacity:0;transition:opacity .2s}
.htmx-request .htmx-indicator,.htmx-request.htmx-indicator{opacity:1}
.empty{padding:26px;text-align:center;color:var(--muted);font-size:13px}

/* slot chips (attendance "now" chooser) */
.chip{display:inline-block;border:1px solid var(--line);border-radius:999px;padding:6px 12px;
  font-size:12px;background:#fff;cursor:pointer;color:var(--ink)}
.chip:hover{background:#f3f3f3;text-decoration:none}
.chip.on{background:var(--accent);color:#fff;border-color:var(--accent)}
.chip.on:hover{background:#c5681a;color:#fff}
.chip.alt{border-style:dashed}

/* QR check-in */
#reader{width:320px;max-width:100%;border:1px solid var(--line2);border-radius:8px;overflow:hidden}
.scan-msg{font-size:13px;margin-top:8px;min-height:20px}
.scan-ok{color:var(--ok)} .scan-err{color:var(--bad)}

/* confirm-before-action modal */
.modal-backdrop{position:fixed;inset:0;background:rgba(20,30,45,.45);display:flex;
  align-items:center;justify-content:center;z-index:100;padding:16px}
.modal-backdrop[hidden]{display:none}
.modal{background:#fff;border-radius:10px;max-width:440px;width:100%;padding:22px;
  box-shadow:0 12px 48px rgba(0,0,0,.25);border-top:4px solid var(--accent)}
.modal h3{margin:0 0 6px;font-size:16px}
.modal .modal-msg{font-size:13px;color:#444;margin:0 0 12px}
.modal .confirm-kv{font-size:13px;margin-bottom:18px}
.modal .confirm-kv div{display:flex;justify-content:space-between;gap:12px;padding:6px 0;border-bottom:1px solid var(--line2)}
.modal .confirm-kv span{color:var(--muted)}
.modal .confirm-kv .big{font-size:16px;color:var(--accent)}
.modal .confirm-list{margin:0 0 16px;font-size:13px}
.modal .confirm-list summary{cursor:pointer;color:var(--accent-2);padding:4px 0}
.modal .confirm-list ul{margin:6px 0 0;padding-left:18px}
.modal .confirm-list li{padding:3px 0;color:#444}
.modal-actions{display:flex;justify-content:flex-end;gap:8px}

/* --------------------------------------------------------------------------- */
/* Responsive: collapse the sidebar to an off-canvas drawer and stack columns  */
/* on tablets/phones so every page adapts to the viewport.                     */
/* --------------------------------------------------------------------------- */
@media (max-width: 880px){
  .nav-toggle{display:inline-flex;align-items:center}
  .sidebar{position:fixed;top:0;left:0;height:100vh;z-index:30;
    transform:translateX(-100%);transition:transform .2s ease}
  .sidebar.open{transform:translateX(0);box-shadow:0 0 40px rgba(0,0,0,.45)}
  .nav-backdrop.show{display:block}
  .content{padding:16px 14px}
  .topbar{padding:0 12px}
  .row{flex-direction:column}
  .row>.col{max-width:none !important}
  .card{overflow-x:auto}
  .kv{grid-template-columns:1fr;gap:2px 0}
  .kv .k{margin-top:10px}
  .toolbar{align-items:flex-start}
}
@media (max-width: 560px){
  h1{font-size:18px}
  .pill{display:none}
  .stats{grid-template-columns:1fr 1fr}
  .right-actions{width:100%}
  .right-actions>.btn,.right-actions>form{flex:1 1 auto}
  .right-actions>form>.btn{width:100%}
}

/* Print (e.g. Corte de caja → print-to-PDF): drop the app chrome and controls. */
@media print{
  .sidebar, .topbar, .nav-backdrop, .nav-toggle, .right-actions, .filters{display:none !important}
  .app{display:block}
  .content{padding:0;max-width:none}
  .card{break-inside:avoid}
  a{color:inherit;text-decoration:none}
}