@import url('https://fonts.googleapis.com/css2?family=Instrument+Serif:ital@0;1&family=Jost:wght@400;500;600;700&display=swap');

:root {
  --fondo: #ECE9E4;
  --papel: #F6F4F0;
  --blanco: #FFFFFF;
  --tinta: #2B2928;
  --tinta-fuerte: #1F1D1C;
  --carbon: #3F3C3A;
  --suave: #4F4A47;
  --tenue: #6A6460;
  --linea: #DCD6CF;
  --linea-suave: #ECE7E1;
  --error: #9B2C2C;
  --radio: 20px;
  --sombra: 0 18px 40px rgba(43, 41, 40, 0.14);
  --serif: 'Instrument Serif', Georgia, serif;
  --sans: 'Jost', system-ui, sans-serif;
}

* { box-sizing: border-box; }
html, body { margin: 0; }
body { font-family: var(--sans); color: var(--tinta); background: var(--fondo); -webkit-font-smoothing: antialiased; }
img { max-width: 100%; display: block; }
a { color: var(--carbon); }
button, input, select { font: inherit; color: inherit; }
button { cursor: pointer; }
:focus-visible { outline: 2px solid var(--carbon); outline-offset: 2px; }

.titulo { font-family: var(--serif); font-style: italic; font-weight: 400; color: var(--tinta-fuerte); line-height: 1.05; margin: 0; letter-spacing: -0.01em; }
.etiqueta { font-size: 12px; letter-spacing: 0.22em; font-weight: 500; color: var(--tenue); text-transform: uppercase; margin: 0; }
.muted { color: var(--suave); }

/* Botones */
.btn { display: inline-flex; align-items: center; justify-content: center; gap: 8px; min-height: 48px; padding: 0 22px; border-radius: 999px; border: 1px solid var(--carbon); background: var(--carbon); color: #fff; font-weight: 600; font-size: 15px; text-decoration: none; transition: opacity .15s; }
.btn:hover { opacity: .9; color: #fff; }
.btn[disabled] { opacity: .5; cursor: not-allowed; }
.btn.claro { background: transparent; color: var(--tinta); }
.btn.claro:hover { color: var(--tinta); background: rgba(63,60,58,.06); }
.btn.chico { min-height: 44px; padding: 0 16px; font-size: 14px; }
.btn.ancho { width: 100%; }
.btn.punteado { background: var(--fondo); color: var(--tinta); border-style: dashed; }
.btn.apagado { background: #F2EFEB; color: var(--tenue); border-color: #E2DDD7; }

/* Formularios */
.campo { display: flex; flex-direction: column; gap: 6px; font-size: 14px; font-weight: 500; }
.campo { min-width: 0; }
.campo input, .campo select { width: 100%; min-width: 0; min-height: 50px; border-radius: 14px; border: 1px solid var(--linea); background: var(--blanco); padding: 0 16px; font-size: 16px; font-weight: 400; }
.campo input:focus { border-color: var(--carbon); outline: none; }
.campo small { font-weight: 400; color: var(--tenue); }
.form { display: flex; flex-direction: column; gap: 16px; }
.error-form { color: var(--error); font-size: 14px; margin: 0; min-height: 1em; }

/* Puntos de cupo */
.puntos { display: inline-flex; gap: 4px; }
.puntos span { width: 10px; height: 10px; border-radius: 50%; border: 1.5px solid var(--carbon); }
.puntos span.lleno { background: var(--carbon); }

/* Tarjetas */
.tarjeta { background: var(--blanco); border-radius: var(--radio); padding: 16px 18px; }
.chip { display: inline-flex; align-items: center; gap: 6px; font-size: 12px; font-weight: 600; padding: 6px 12px; border-radius: 999px; white-space: nowrap; }
.chip.ok { background: var(--carbon); color: #fff; }
.chip.espera { background: #F2EFEB; border: 1px dashed var(--carbon); }
.chip.gris { background: #F2EFEB; color: var(--suave); }

/* Aviso flotante */
.aviso { position: fixed; left: 50%; bottom: 100px; transform: translate(-50%, 20px); width: min(440px, calc(100% - 32px)); background: var(--tinta-fuerte); color: var(--papel); border-radius: 16px; padding: 14px 18px; font-size: 15px; box-shadow: 0 16px 36px rgba(0,0,0,.25); opacity: 0; pointer-events: none; transition: all .25s; z-index: 50; }
.aviso.visible { opacity: 1; transform: translate(-50%, 0); }
.aviso.error { background: var(--error); }

.cargando { padding: 40px 0; text-align: center; color: var(--tenue); }
.oculto { display: none !important; }

/* ======== APP ======== */
.app { max-width: 520px; margin: 0 auto; min-height: 100vh; min-height: 100dvh; display: flex; flex-direction: column; }
.app-top { padding: 20px 20px 8px; display: flex; align-items: center; justify-content: space-between; }
.app-top img { width: 52px; height: 52px; }
.avatar { width: 44px; height: 44px; border-radius: 50%; background: var(--carbon); color: #fff; display: flex; align-items: center; justify-content: center; font-weight: 600; border: 0; text-decoration: none; }
.app-main { flex: 1; padding: 0 20px 120px; display: flex; flex-direction: column; gap: 14px; }
.app-nav { position: fixed; left: 0; right: 0; bottom: 0; background: var(--papel); border-top: 1px solid var(--linea); padding: 8px 0 calc(8px + env(safe-area-inset-bottom)); z-index: 20; }
.app-nav ul { list-style: none; margin: 0 auto; padding: 0; max-width: 520px; display: flex; justify-content: space-around; }
.app-nav a { display: flex; flex-direction: column; align-items: center; gap: 3px; min-width: 72px; min-height: 48px; justify-content: center; font-size: 12px; text-decoration: none; color: var(--tenue); font-weight: 500; }
.app-nav a[aria-current="page"] { color: var(--tinta-fuerte); font-weight: 600; }
.app-nav svg { width: 24px; height: 24px; }

.saldo { background: var(--carbon); color: var(--papel); border-radius: var(--radio); padding: 16px 18px; display: flex; align-items: center; justify-content: space-between; gap: 12px; }
.saldo .num { font-family: var(--serif); font-size: 44px; line-height: 1; }
.saldo small { color: #DCD7D1; }

.banner { border-radius: 18px; padding: 14px 16px; background: var(--papel); border: 1px solid var(--linea); font-size: 14px; line-height: 1.5; display: flex; gap: 12px; }
.banner svg { flex: 0 0 auto; width: 20px; height: 20px; margin-top: 1px; }

.dias { display: flex; gap: 8px; overflow-x: auto; padding: 4px 2px 6px; margin: 0 -2px; scrollbar-width: none; }
.dias::-webkit-scrollbar { display: none; }
.dia { flex: 0 0 auto; width: 54px; height: 66px; border-radius: 18px; border: 1px solid #D4CEC7; background: var(--papel); display: flex; flex-direction: column; align-items: center; justify-content: center; gap: 2px; }
.dia b { font-size: 20px; }
.dia span { font-size: 11px; font-weight: 600; letter-spacing: .06em; }
.dia[aria-pressed="true"] { background: var(--carbon); color: #fff; border-color: var(--carbon); }
.dia.sin-clases { opacity: .45; }

.clase { background: var(--blanco); border-radius: var(--radio); padding: 14px 14px 14px 18px; display: flex; align-items: center; gap: 12px; }
.clase .info { flex: 1; min-width: 0; display: flex; flex-direction: column; gap: 6px; }
.clase .h { font-size: 22px; font-weight: 600; }
.clase .h small { font-size: 13px; font-weight: 500; color: var(--tenue); margin-left: 4px; }
.clase .cupo { display: flex; align-items: center; gap: 8px; font-size: 12px; font-weight: 600; }
.clase .btn { min-width: 112px; }

.paquete { width: 100%; text-align: left; border: 1px solid transparent; background: var(--blanco); border-radius: 18px; padding: 16px 18px; display: flex; align-items: center; justify-content: space-between; gap: 12px; }
.paquete .precio { font-family: var(--serif); font-size: 32px; }
.paquete[aria-pressed="true"] { background: var(--carbon); color: var(--papel); }
.paquete[aria-pressed="true"] .muted { color: #DCD7D1; }

.reserva { display: flex; flex-direction: column; gap: 12px; }
.reserva .fila { display: flex; justify-content: space-between; align-items: flex-start; gap: 10px; }

.acceso { flex: 1; display: flex; flex-direction: column; justify-content: center; gap: 22px; padding: 24px 20px 48px; }
.acceso .logo { width: 132px; height: 132px; margin: 0 auto 4px; }
.acceso .titulo { font-size: 40px; text-align: center; }
.acceso .cambio { text-align: center; font-size: 15px; }
.acceso .cambio a { font-weight: 600; }

/* ======== PANEL DEL ESTUDIO ======== */
.panel { display: flex; flex-wrap: wrap; min-height: 100vh; }
.panel-menu { flex: 1 1 230px; max-width: 100%; background: var(--carbon); color: var(--papel); padding: 24px 18px; display: flex; flex-direction: column; gap: 22px; box-sizing: border-box; }
.panel-menu .marca { display: flex; align-items: center; gap: 12px; }
.panel-menu .marca img { width: 54px; height: 54px; }
.panel-menu nav { display: flex; flex-direction: column; gap: 4px; }
.panel-menu nav a { color: var(--papel); text-decoration: none; padding: 12px 14px; border-radius: 14px; display: flex; justify-content: space-between; align-items: center; font-size: 15px; min-height: 44px; }
.panel-menu nav a[aria-current="page"] { background: var(--papel); color: var(--tinta-fuerte); font-weight: 600; }
.panel-menu nav a .num { background: var(--papel); color: var(--tinta-fuerte); font-size: 12px; font-weight: 700; padding: 2px 9px; border-radius: 999px; }
.panel-menu nav a[aria-current="page"] .num { background: var(--carbon); color: var(--papel); }
.panel-menu .salir { margin-top: auto; background: none; border: 1px solid #6A6460; color: var(--papel); border-radius: 999px; min-height: 44px; }
.panel-main { flex: 999 1 640px; min-width: 0; padding: 28px clamp(16px, 3vw, 36px) 60px; display: flex; flex-direction: column; gap: 22px; }
.panel-main h1.titulo { font-size: clamp(38px, 4vw, 52px); }
.kpis { display: grid; grid-template-columns: repeat(auto-fit, minmax(170px, 1fr)); gap: 12px; }
.kpi { background: var(--blanco); border-radius: 18px; padding: 16px 18px; }
.kpi b { display: block; font-family: var(--serif); font-size: 40px; font-weight: 400; line-height: 1.1; }
.kpi small { color: var(--suave); font-size: 13px; }
.columnas { display: flex; flex-wrap: wrap; gap: 18px; align-items: flex-start; }
.columnas > * { min-width: 0; }
.caja { background: var(--blanco); border-radius: 22px; padding: 20px 22px; display: flex; flex-direction: column; }
.caja > h2 { margin: 0 0 6px; font-size: 19px; font-weight: 600; display: flex; justify-content: space-between; align-items: baseline; gap: 10px; }
.caja > h2 small { font-size: 12.5px; font-weight: 400; color: var(--tenue); }
.fila-p { display: flex; flex-wrap: wrap; align-items: center; gap: 10px 14px; padding: 13px 0; border-top: 1px solid var(--linea-suave); }
.fila-p:first-of-type { border-top: 0; }
.fila-p .quien { flex: 1 1 180px; min-width: 0; }
.fila-p .quien b { display: block; font-size: 15px; }
.fila-p .quien small { color: var(--suave); font-size: 13px; }
.fila-p .acciones { display: flex; gap: 8px; flex-wrap: wrap; }
.ini { width: 40px; height: 40px; border-radius: 50%; background: var(--fondo); display: flex; align-items: center; justify-content: center; font-size: 13px; font-weight: 600; flex: 0 0 auto; }
.vacio { color: var(--tenue); font-size: 14px; padding: 10px 0 4px; margin: 0; }
.barras { flex: 1; display: flex; gap: 4px; min-width: 90px; }
.barras span { flex: 1; height: 10px; border-radius: 6px; background: #E6E1DB; }
.barras span.lleno { background: var(--carbon); }
.tabla-caja { overflow-x: auto; }
table.t { width: 100%; border-collapse: collapse; font-size: 14px; }
table.t th { text-align: left; font-size: 12px; letter-spacing: .08em; color: var(--tenue); font-weight: 500; padding: 8px 10px; border-bottom: 1px solid var(--linea); white-space: nowrap; }
table.t td { padding: 12px 10px; border-bottom: 1px solid var(--linea-suave); vertical-align: middle; }
table.t tr.click { cursor: pointer; }
table.t tr.click:hover td { background: var(--papel); }
.buscador { display: flex; flex-wrap: wrap; gap: 10px; }
.buscador input, .buscador select, .mini input, .mini select { min-height: 46px; border-radius: 14px; border: 1px solid var(--linea); background: var(--blanco); padding: 0 14px; font-size: 15px; }
.buscador input { flex: 1 1 240px; }
.mini { display: flex; flex-wrap: wrap; gap: 8px; align-items: flex-end; }
.mini label { display: flex; flex-direction: column; gap: 4px; font-size: 12.5px; color: var(--suave); }
.mini input[type="number"] { width: 90px; }
.btn-x { width: 40px; height: 40px; border-radius: 50%; border: 1px solid var(--linea); background: var(--blanco); display: inline-flex; align-items: center; justify-content: center; font-size: 18px; }
dialog.modal { border: 0; border-radius: 24px; padding: 26px; width: min(460px, calc(100% - 32px)); box-shadow: var(--sombra); color: var(--tinta); }
dialog.modal::backdrop { background: rgba(31, 29, 28, .45); }
dialog.modal h2 { margin: 0 0 4px; font-family: var(--serif); font-style: italic; font-weight: 400; font-size: 32px; }
.clase-dia { background: var(--blanco); border-radius: 20px; padding: 18px 20px; display: flex; flex-direction: column; gap: 10px; }
.clase-dia.cancelada { opacity: .6; }
.clase-dia header { display: flex; flex-wrap: wrap; justify-content: space-between; align-items: center; gap: 10px; }
.asistente { display: flex; flex-wrap: wrap; align-items: center; gap: 8px 12px; padding: 8px 0; border-top: 1px solid var(--linea-suave); font-size: 14px; }
.asistente .n { flex: 1 1 160px; }
@media (max-width: 880px) {
  .panel-menu { flex-basis: 100%; padding: 14px 16px; gap: 12px; }
  .panel-menu .marca img { width: 40px; height: 40px; }
  .panel-menu nav { flex-direction: row; overflow-x: auto; scrollbar-width: none; }
  .panel-menu nav a { white-space: nowrap; gap: 8px; }
  .panel-menu .salir { display: none; }
}

.dias-h { display: grid; grid-template-columns: repeat(auto-fill, minmax(min(100%, 340px), 1fr)); gap: 14px; margin-top: 12px; }
.dia-h { background: var(--papel); border-radius: 18px; padding: 14px; display: flex; flex-direction: column; gap: 6px; }
.dia-h .etiqueta { margin-bottom: 4px; }
.slot-h { display: grid; grid-template-columns: 66px minmax(90px, 1fr) 48px 36px 36px; gap: 6px; align-items: center; }
.slot-h b { font-size: 14px; }
.slot-h select, .slot-h input { min-height: 40px; border-radius: 10px; border: 1px solid var(--linea); background: var(--blanco); padding: 0 8px; font-size: 14px; min-width: 0; }
.slot-h .btn-x { font-size: 12px; width: 36px; height: 36px; }