/* Control de Asistencia NBC — hoja de estilos */
:root {
  --papel: #F4F7F4;
  --superficie: #FFFFFF;
  --tinta: #15302A;
  --tinta-2: #4A615A;
  --tinta-3: #7A8C86;
  --liquen: #D6E0D9;
  --liquen-2: #E8EEEA;
  --clorofila: #0E7C66;
  --clorofila-osc: #0A5E4D;
  --clorofila-suave: #DCEFE9;
  /* semáforo: solo para estado */
  --ok: #2F8F5B;      --ok-suave: #DDF0E4;
  --alerta: #B9800C;  --alerta-suave: #FAEFD4;
  --mal: #BF3B2B;     --mal-suave: #F8E0DC;
  --just: #6C7FA6;    --just-suave: #E3E8F3;
  --vacio: #E4EAE6;
  --radio: 10px;
  --radio-s: 6px;
  --sombra: 0 1px 2px rgba(21, 48, 42, .06), 0 4px 16px rgba(21, 48, 42, .05);
  --f-ui: 'Atkinson Hyperlegible Next', 'Atkinson Hyperlegible', system-ui, sans-serif;
  --f-tit: 'Bricolage Grotesque', 'Atkinson Hyperlegible Next', system-ui, sans-serif;
  color-scheme: light;
}
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --papel: #0F1A17; --superficie: #15231F; --tinta: #E4EEEA; --tinta-2: #A9BCB5; --tinta-3: #7F948D;
    --liquen: #2A3C36; --liquen-2: #1C2B27; --clorofila: #3DBB9B; --clorofila-osc: #6FD3B8; --clorofila-suave: #173A31;
    --ok: #4CB97E; --ok-suave: #173A28; --alerta: #E0A93A; --alerta-suave: #3A2F14; --mal: #E8705F; --mal-suave: #40201B;
    --just: #93A5CC; --just-suave: #232C40; --vacio: #24332E; --sombra: 0 1px 2px rgba(0,0,0,.3);
    color-scheme: dark;
  }
}
:root[data-theme="dark"] {
  --papel: #0F1A17; --superficie: #15231F; --tinta: #E4EEEA; --tinta-2: #A9BCB5; --tinta-3: #7F948D;
  --liquen: #2A3C36; --liquen-2: #1C2B27; --clorofila: #3DBB9B; --clorofila-osc: #6FD3B8; --clorofila-suave: #173A31;
  --ok: #4CB97E; --ok-suave: #173A28; --alerta: #E0A93A; --alerta-suave: #3A2F14; --mal: #E8705F; --mal-suave: #40201B;
  --just: #93A5CC; --just-suave: #232C40; --vacio: #24332E; --sombra: 0 1px 2px rgba(0,0,0,.3);
  color-scheme: dark;
}

* { box-sizing: border-box; }
html, body { margin: 0; }
body {
  background: var(--papel); color: var(--tinta);
  font: 15px/1.5 var(--f-ui); font-variant-numeric: tabular-nums;
  -webkit-font-smoothing: antialiased;
}
h1, h2, h3 { font-family: var(--f-tit); font-weight: 650; letter-spacing: -0.01em; margin: 0; line-height: 1.15; }
h1 { font-size: 1.75rem; }
h2 { font-size: 1.2rem; }
h3 { font-size: 1rem; }
a { color: var(--clorofila); }
p { margin: 0 0 .75em; max-width: 72ch; }
small, .tenue { color: var(--tinta-2); }
.muy-tenue { color: var(--tinta-3); }
:focus-visible { outline: 2.5px solid var(--clorofila); outline-offset: 2px; border-radius: 4px; }
@media (prefers-reduced-motion: reduce) { *, *::before, *::after { transition: none !important; animation: none !important; } }

/* ---------- Estructura ---------- */
.marco { display: grid; grid-template-columns: 232px 1fr; min-height: 100vh; }
.lateral {
  background: var(--tinta); color: #DCE8E3; padding: 22px 14px; position: sticky; top: 0; height: 100vh;
  display: flex; flex-direction: column; gap: 4px;
}
:root[data-theme="dark"] .lateral { background: #0A1311; }
@media (prefers-color-scheme: dark) { :root:not([data-theme="light"]) .lateral { background: #0A1311; } }
.marca { display: flex; gap: 10px; align-items: center; padding: 0 8px 18px; }
.marca svg { flex: none; }
.marca b { font-family: var(--f-tit); font-size: 1.02rem; display: block; color: #fff; line-height: 1.1; }
.marca span { font-size: .78rem; color: #9DB8AE; }
.nav a {
  display: flex; align-items: center; gap: 11px; padding: 9px 10px; border-radius: 8px;
  color: #C9DBD4; text-decoration: none; font-size: .95rem;
}
.nav a:hover { background: rgba(255,255,255,.06); color: #fff; }
.nav a[aria-current="page"] { background: rgba(61,187,155,.16); color: #fff; box-shadow: inset 3px 0 0 #3DBB9B; }
.nav svg { width: 18px; height: 18px; flex: none; opacity: .9; }
small svg { vertical-align: -3px; }
.lateral .pie { margin-top: auto; padding: 12px 8px 0; border-top: 1px solid rgba(255,255,255,.08); font-size: .82rem; color: #9DB8AE; }
.lateral .pie b { color: #fff; display: block; font-weight: 600; }
.lateral .pie button { margin-top: 8px; }

.principal { padding: 26px 34px 80px; max-width: 1320px; width: 100%; min-width: 0; }
.cabecera { display: flex; align-items: flex-end; justify-content: space-between; gap: 16px; flex-wrap: wrap; margin-bottom: 22px; }
.cabecera .sub { color: var(--tinta-2); margin-top: 4px; font-size: .92rem; }
.acciones { display: flex; gap: 8px; flex-wrap: wrap; align-items: center; }

.aviso-demo {
  background: var(--alerta-suave); color: var(--tinta); border: 1px solid color-mix(in srgb, var(--alerta) 35%, transparent);
  padding: 8px 14px; border-radius: var(--radio-s); font-size: .86rem; margin-bottom: 18px;
}

/* ---------- Superficies ---------- */
.bloque { background: var(--superficie); border: 1px solid var(--liquen); border-radius: var(--radio); padding: 18px 20px; margin-bottom: 18px; }
.bloque > h2 { margin-bottom: 12px; }
.bloque-tit { display: flex; justify-content: space-between; align-items: baseline; gap: 12px; flex-wrap: wrap; margin-bottom: 12px; }
.rejilla-2 { display: grid; grid-template-columns: 1fr 1fr; gap: 18px; margin-bottom: 18px; }
.rejilla-2 > .bloque { margin-bottom: 0; }

/* ---------- Controles ---------- */
button, .btn {
  font: inherit; font-size: .92rem; cursor: pointer; border-radius: 8px; padding: 8px 14px;
  border: 1px solid var(--liquen); background: var(--superficie); color: var(--tinta);
  display: inline-flex; align-items: center; gap: 7px; text-decoration: none; line-height: 1.2; white-space: nowrap;
}
button:hover, .btn:hover { border-color: var(--tinta-3); }
button:disabled { opacity: .55; cursor: not-allowed; }
.btn-p { background: var(--clorofila); border-color: var(--clorofila); color: #fff; font-weight: 600; }
.btn-p:hover { background: var(--clorofila-osc); border-color: var(--clorofila-osc); }
:root[data-theme="dark"] .btn-p, :root[data-theme="dark"] .btn-p:hover { color: #08221B; }
@media (prefers-color-scheme: dark) { :root:not([data-theme="light"]) .btn-p { color: #08221B; } }
.btn-txt { border-color: transparent; background: transparent; color: var(--clorofila); padding: 6px 8px; }
.btn-txt:hover { background: var(--clorofila-suave); border-color: transparent; }
.btn-peligro { color: var(--mal); }
.btn-s { padding: 5px 10px; font-size: .84rem; }
.lateral .btn-txt { color: #9DD9C6; padding-left: 0; }
.lateral .btn-txt:hover { background: transparent; text-decoration: underline; }
button svg, .btn svg, .btn-txt svg { width: 16px; height: 16px; flex: none; }
[hidden] { display: none !important; }

label { display: block; font-size: .86rem; color: var(--tinta-2); margin-bottom: 4px; }
input, select, textarea {
  font: inherit; color: var(--tinta); background: var(--superficie); border: 1px solid var(--liquen);
  border-radius: 7px; padding: 8px 10px; width: 100%;
}
input:focus, select:focus, textarea:focus { border-color: var(--clorofila); outline: none; box-shadow: 0 0 0 3px var(--clorofila-suave); }
input[type="checkbox"] { width: auto; accent-color: var(--clorofila); }
.campo { margin-bottom: 12px; }
.fila-campos { display: grid; grid-template-columns: repeat(auto-fit, minmax(170px, 1fr)); gap: 12px; }
.ayuda { font-size: .8rem; color: var(--tinta-3); margin-top: 3px; }
.selector-seccion { min-width: 200px; width: auto; font-weight: 600; }
.buscador { max-width: 280px; }
.check { display: flex; gap: 8px; align-items: center; color: var(--tinta); font-size: .92rem; }

/* ---------- Tablas ---------- */
.tabla-wrap { overflow-x: auto; margin: 0 -20px; padding: 0 20px; }
table { width: 100%; border-collapse: collapse; font-size: .9rem; }
th { text-align: left; font-weight: 600; color: var(--tinta-2); font-size: .8rem; padding: 8px 10px; border-bottom: 1px solid var(--liquen); white-space: nowrap; }
td { padding: 9px 10px; border-bottom: 1px solid var(--liquen-2); vertical-align: middle; }
tr.clic { cursor: pointer; }
tr.clic:hover td { background: var(--liquen-2); }
td.num, th.num { text-align: right; }
td.centro, th.centro { text-align: center; }
.nombre-al b { display: block; font-weight: 600; }
.nombre-al span { font-size: .8rem; color: var(--tinta-3); }
tr.retirado td { color: var(--tinta-3); }

/* ---------- Semáforo y etiquetas ---------- */
.pct { font-weight: 700; font-size: .98rem; }
.pct.verde { color: var(--ok); } .pct.amarillo { color: var(--alerta); } .pct.rojo { color: var(--mal); } .pct.gris { color: var(--tinta-3); }
.chip { display: inline-block; padding: 2px 9px; border-radius: 99px; font-size: .78rem; font-weight: 600; white-space: nowrap; }
.chip.aprobado, .chip.en_curso { background: var(--ok-suave); color: var(--ok); }
.chip.riesgo { background: var(--alerta-suave); color: var(--alerta); }
.chip.reprobado { background: var(--mal-suave); color: var(--mal); }
.chip.retirado, .chip.neutro { background: var(--liquen-2); color: var(--tinta-2); }
.chip.programada { background: var(--liquen-2); color: var(--tinta-2); }
.chip.realizada { background: var(--clorofila-suave); color: var(--clorofila-osc); }
.chip.suspendida { background: var(--mal-suave); color: var(--mal); }
.nota-baja { color: var(--mal); font-weight: 700; }

/* ---------- Banda de asistencia (elemento distintivo) ---------- */
.banda { display: flex; align-items: stretch; gap: 2px; height: 22px; position: relative; min-width: 150px; }
.banda i { flex: 1 1 0; min-width: 3px; border-radius: 2px; background: var(--vacio); }
.banda i.P { background: var(--ok); }
.banda i.T { background: color-mix(in srgb, var(--ok) 65%, var(--alerta)); }
.banda i.R { background: var(--alerta); }
.banda i.J { background: var(--just); }
.banda i.A, .banda i.X { background: var(--mal); }
.banda i.F { background: transparent; box-shadow: inset 0 0 0 1px var(--liquen); }
.banda .umbral { position: absolute; top: -4px; bottom: -4px; width: 2px; background: var(--tinta); border-radius: 1px; }
.banda.grande { height: 46px; gap: 3px; }
.banda.grande i { border-radius: 3px; }
.banda.grande .umbral::after {
  content: attr(data-label); position: absolute; top: -20px; left: 50%; transform: translateX(-50%);
  font-size: .72rem; color: var(--tinta-2); white-space: nowrap;
}
.leyenda { display: flex; gap: 14px; flex-wrap: wrap; font-size: .8rem; color: var(--tinta-2); margin-top: 10px; }
.leyenda span { display: inline-flex; align-items: center; gap: 6px; }
.leyenda i { width: 11px; height: 11px; border-radius: 2px; display: inline-block; }

/* Barras proporcionales del panel */
.prop { display: flex; height: 10px; border-radius: 99px; overflow: hidden; background: var(--vacio); min-width: 120px; }
.prop i { display: block; height: 100%; }
.seccion-fila { display: grid; grid-template-columns: minmax(170px, 1.2fr) repeat(4, minmax(90px, .7fr)) minmax(160px, 1.3fr); gap: 16px; align-items: center; padding: 14px 0; border-bottom: 1px solid var(--liquen-2); }
.seccion-fila:last-child { border-bottom: 0; }
.seccion-fila .dato b { font-size: 1.3rem; font-family: var(--f-tit); display: block; line-height: 1.1; }
.seccion-fila .dato span { font-size: .78rem; color: var(--tinta-3); }

/* ---------- Toma de asistencia ---------- */
.lista-asis { display: flex; flex-direction: column; }
.asis-fila { display: grid; grid-template-columns: minmax(200px, 1.2fr) auto minmax(200px, 1fr); gap: 14px; align-items: center; padding: 10px 0; border-bottom: 1px solid var(--liquen-2); }
.asis-fila.cambiada { background: linear-gradient(90deg, var(--clorofila-suave), transparent 40%); }
.seg { display: inline-flex; border: 1px solid var(--liquen); border-radius: 9px; overflow: hidden; background: var(--superficie); }
.seg button { border: 0; border-radius: 0; padding: 8px 0; width: 42px; justify-content: center; font-weight: 700; color: var(--tinta-2); border-right: 1px solid var(--liquen); }
.seg button:last-child { border-right: 0; }
.seg button[aria-pressed="true"].P { background: var(--ok); color: #fff; }
.seg button[aria-pressed="true"].T { background: color-mix(in srgb, var(--ok) 65%, var(--alerta)); color: #fff; }
.seg button[aria-pressed="true"].R { background: var(--alerta); color: #fff; }
.seg button[aria-pressed="true"].J { background: var(--just); color: #fff; }
.seg button[aria-pressed="true"].A { background: var(--mal); color: #fff; }
.asis-extra { display: flex; gap: 8px; align-items: center; }
.asis-extra select { max-width: 210px; }
.asis-meta { font-size: .78rem; color: var(--tinta-3); }
.barra-guardar {
  position: sticky; bottom: 14px; z-index: 5; display: flex; justify-content: space-between; align-items: center; gap: 12px;
  background: var(--tinta); color: #E4EEEA; padding: 10px 12px 10px 18px; border-radius: 12px; box-shadow: 0 8px 30px rgba(10, 30, 25, .25);
  margin-top: 16px;
}
.barra-guardar .btn-p { background: #3DBB9B; border-color: #3DBB9B; color: #08221B; }
.resumen-sesion { display: flex; gap: 20px; flex-wrap: wrap; font-size: .9rem; }
.resumen-sesion b { font-family: var(--f-tit); font-size: 1.15rem; }

/* ---------- Ficha ---------- */
.ficha-cab { display: grid; grid-template-columns: 1fr auto; gap: 20px; align-items: start; }
.cifras { display: grid; grid-template-columns: repeat(auto-fit, minmax(130px, 1fr)); gap: 0; border: 1px solid var(--liquen); border-radius: var(--radio); overflow: hidden; margin: 18px 0; }
.cifras div { padding: 12px 16px; border-right: 1px solid var(--liquen); background: var(--superficie); }
.cifras div:last-child { border-right: 0; }
.cifras b { display: block; font-family: var(--f-tit); font-size: 1.45rem; line-height: 1.15; }
.cifras > div > span { font-size: .8rem; color: var(--tinta-2); }

/* ---------- Calificaciones ---------- */
.grilla-notas input { width: 62px; text-align: center; padding: 6px 4px; font-variant-numeric: tabular-nums; }
.grilla-notas input.baja { color: var(--mal); font-weight: 700; }
.grilla-notas input.sucio { background: var(--clorofila-suave); }
.grilla-notas th { white-space: normal; min-width: 80px; vertical-align: bottom; }
.grilla-notas td:first-child, .grilla-notas th:first-child { position: sticky; left: 0; background: var(--superficie); z-index: 1; }

/* ---------- Diálogos y avisos ---------- */
dialog { border: 0; border-radius: 14px; padding: 0; max-width: min(620px, calc(100vw - 32px)); width: 100%; background: var(--superficie); color: var(--tinta); box-shadow: 0 20px 60px rgba(10,30,25,.3); }
dialog::backdrop { background: rgba(15, 30, 26, .45); }
dialog form { padding: 22px 24px; }
dialog h2 { margin-bottom: 14px; }
dialog .pie-dialogo { display: flex; justify-content: flex-end; gap: 8px; margin-top: 18px; }
.toast-zona { position: fixed; right: 18px; bottom: 18px; display: flex; flex-direction: column; gap: 8px; z-index: 100; }
.toast { background: var(--tinta); color: #EAF3EF; padding: 11px 16px; border-radius: 10px; font-size: .9rem; box-shadow: var(--sombra); max-width: 380px; animation: entra .22s ease-out; }
.toast.error { background: var(--mal); color: #fff; }
@keyframes entra { from { transform: translateY(8px); opacity: 0; } }
.vacio { text-align: center; padding: 34px 16px; color: var(--tinta-2); }
.vacio b { display: block; color: var(--tinta); font-size: 1.05rem; margin-bottom: 4px; }
.cargando { padding: 40px; color: var(--tinta-3); }
.estado-int { display: flex; align-items: center; gap: 10px; padding: 12px 0; border-bottom: 1px solid var(--liquen-2); }
.estado-int:last-child { border-bottom: 0; }
.punto { width: 9px; height: 9px; border-radius: 50%; background: var(--tinta-3); flex: none; }
.punto.on { background: var(--ok); } .punto.off { background: var(--mal); }
.pestanas { display: flex; gap: 4px; border-bottom: 1px solid var(--liquen); margin-bottom: 18px; overflow-x: auto; }
.pestanas button { border: 0; border-radius: 0; background: none; padding: 10px 14px; color: var(--tinta-2); border-bottom: 2px solid transparent; margin-bottom: -1px; }
.pestanas button[aria-selected="true"] { color: var(--tinta); border-bottom-color: var(--clorofila); font-weight: 600; }
pre.correo { white-space: pre-wrap; font: inherit; font-size: .86rem; background: var(--liquen-2); padding: 12px 14px; border-radius: 8px; margin: 8px 0 0; }
.offline { background: var(--alerta); color: #fff; text-align: center; font-size: .85rem; padding: 6px; position: sticky; top: 0; z-index: 20; }

/* ---------- Login ---------- */
.login { min-height: 100vh; display: grid; grid-template-columns: 1.1fr 1fr; }
.login-arte { background: var(--tinta); color: #DCE8E3; padding: 48px; display: flex; flex-direction: column; justify-content: space-between; overflow: hidden; }
.login-arte h1 { color: #fff; font-size: 2.3rem; max-width: 15ch; margin: 22px 0 14px; }
.login-arte p { color: #A9C4BA; max-width: 44ch; }
.login-arte .banda { height: 64px; gap: 4px; max-width: 520px; margin-top: 30px; }
.login-arte .banda i { border-radius: 3px; }
.login-arte .banda .umbral { background: #fff; }
.login-form { display: flex; align-items: center; justify-content: center; padding: 32px; }
.login-form form { width: 100%; max-width: 360px; }
.login-form h2 { font-size: 1.5rem; margin-bottom: 6px; }
.login-form .error { color: var(--mal); font-size: .88rem; min-height: 1.3em; margin: 8px 0; }

/* ---------- Móvil ---------- */
.solo-movil { display: none; }
@media (max-width: 900px) {
  .marco { grid-template-columns: 1fr; }
  .lateral { position: fixed; bottom: 0; top: auto; left: 0; right: 0; height: auto; flex-direction: row; padding: 4px 6px calc(4px + env(safe-area-inset-bottom)); z-index: 30; }
  .marca, .lateral .pie, .nav a.solo-escritorio { display: none; }
  .nav { display: flex; width: 100%; justify-content: space-around; }
  .nav a { flex-direction: column; gap: 2px; font-size: .68rem; padding: 6px 4px; flex: 1; text-align: center; }
  .nav a[aria-current="page"] { box-shadow: inset 0 2px 0 #3DBB9B; }
  .principal { padding: 18px 16px 96px; }
  .rejilla-2 { grid-template-columns: 1fr; }
  .seccion-fila { grid-template-columns: 1fr 1fr; }
  .seccion-fila > :first-child, .seccion-fila > :last-child { grid-column: 1 / -1; }
  .asis-fila { grid-template-columns: 1fr; gap: 8px; }
  .seg button { width: 48px; padding: 10px 0; }
  .login { grid-template-columns: 1fr; }
  .login-arte { padding: 28px 22px; }
  .login-arte h1 { font-size: 1.7rem; }
  .ficha-cab { grid-template-columns: 1fr; }
  .solo-movil { display: block; }
  .ocultar-movil { display: none; }
  .tabla-wrap { margin: 0 -20px; }
  h1 { font-size: 1.45rem; }
  .barra-guardar { bottom: 76px; }
  .toast-zona { bottom: 84px; left: 16px; right: 16px; }
}