/* ============================================================
   Sistema de diseño — Transcriptor
   Tema claro/oscuro con variables CSS. Conmutador en js/tema.js
   ============================================================ */

:root {
  --primary: #3C99ED;
  --primary-dark: #2b7fce;
  --primary-contrast: #ffffff;
  --grad: linear-gradient(135deg, #5aa9f2 0%, #3C99ED 50%, #2575c7 100%);

  --bg: #eef2f7;
  --surface: #ffffff;
  --surface-2: #f5f7fa;
  --text: #1f2430;
  --muted: #6b7280;
  --border: #e5e9f0;

  --ok: #2e9e5b;       --ok-bg: rgba(46,158,91,.12);
  --warn: #d9882f;
  --danger: #d9534f;   --danger-bg: rgba(217,83,79,.12);
  --primary-bg: rgba(60,153,237,.12);

  --shadow: 0 10px 30px rgba(20,30,55,.08);
  --shadow-sm: 0 2px 8px rgba(20,30,55,.06);
  --radio: 14px;
  --radio-sm: 10px;
}

[data-tema="oscuro"] {
  --primary: #4aa3f0;
  --primary-dark: #3b8fdb;
  --bg: #0f1622;
  --surface: #18202f;
  --surface-2: #1f2939;
  --text: #e8edf5;
  --muted: #98a3b5;
  --border: #2a3447;

  --ok-bg: rgba(46,158,91,.18);
  --danger-bg: rgba(217,83,79,.18);
  --primary-bg: rgba(74,163,240,.16);
  --shadow: 0 10px 30px rgba(0,0,0,.35);
  --shadow-sm: 0 2px 8px rgba(0,0,0,.3);
}

* { box-sizing: border-box; }

body {
  margin: 0;
  font-family: -apple-system, "Segoe UI", Roboto, Inter, system-ui, sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.5;
  transition: background .25s, color .25s;
}

/* Páginas centradas (panel, admin, transcribir). min-height (no height fijo)
   para que el contenido alto pueda crecer y no se corte arriba. */
body.centrado {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 100vh;
  padding: 24px;
}

h1 { font-size: 1.55rem; margin: 0 0 4px; letter-spacing: -.01em; }
.subtitulo { color: var(--muted); margin: 0 0 24px; font-size: .95rem; }

/* ---------- Botones ---------- */
button, .btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  border: 0; border-radius: var(--radio-sm);
  background: var(--primary); color: var(--primary-contrast);
  font-size: 1rem; font-weight: 700; cursor: pointer;
  padding: 12px 18px; font-family: inherit;
  transition: transform .08s, background .2s, box-shadow .2s, border-color .2s;
}
button:hover, .btn:hover { background: var(--primary-dark); }
button:active, .btn:active { transform: translateY(1px); }
button:disabled { background: var(--primary-bg); color: var(--muted); cursor: default; }

/* Botón de ancho completo (formularios) */
form button, .btn-block { width: 100%; margin-top: 20px; }

.btn-lg { padding: 14px 26px; font-size: 1.05rem; }

/* Botón secundario / fantasma */
.btn-ghost, .salir {
  background: transparent; color: var(--text);
  border: 1px solid var(--border); font-weight: 600;
}
.btn-ghost:hover, .salir:hover { background: var(--surface-2); border-color: var(--primary); color: var(--primary); }
.salir { padding: 8px 14px; font-size: .85rem; }

/* Conmutador de tema */
.toggle-tema {
  width: 40px; height: 40px; padding: 0; border-radius: 50%;
  background: var(--surface-2); color: var(--text);
  border: 1px solid var(--border); font-size: 1.1rem;
}
.toggle-tema:hover { background: var(--surface-2); border-color: var(--primary); }
.toggle-tema--abs { position: absolute; top: 20px; right: 20px; }

/* ---------- Formularios ---------- */
label { display: block; font-size: .88rem; font-weight: 600; margin: 14px 0 6px; }
input, select, textarea {
  width: 100%; padding: 12px 13px;
  border: 1px solid var(--border); border-radius: var(--radio-sm);
  font-size: 1rem; font-family: inherit;
  background: var(--surface); color: var(--text);
  transition: border-color .2s, box-shadow .2s;
}
input:focus, select:focus, textarea:focus {
  outline: none; border-color: var(--primary);
  box-shadow: 0 0 0 3px var(--primary-bg);
}
textarea { resize: vertical; }

/* Campo de contraseña con botón "ojo" */
.campo-pass { position: relative; }
.campo-pass input { padding-right: 44px; }
/* Ocultar el control nativo de revelar contraseña (Edge/IE) para no duplicar */
.campo-pass input::-ms-reveal,
.campo-pass input::-ms-clear { display: none; }
.ojo {
  position: absolute; top: 50%; right: 6px; transform: translateY(-50%);
  width: 32px; height: 32px; padding: 0; margin: 0; border-radius: 8px;
  background: transparent; color: var(--muted); border: 0;
  display: flex; align-items: center; justify-content: center;
}
.ojo:hover { background: transparent; color: var(--primary); }
/* El ícono no captura clics: así todo el área del botón es clicable. */
.ojo svg { width: 20px; height: 20px; pointer-events: none; }

.enlace { text-align: center; margin-top: 20px; font-size: .9rem; color: var(--muted); }
.enlace a { color: var(--primary); text-decoration: none; font-weight: 600; }
.enlace a:hover { text-decoration: underline; }

.muted { color: var(--muted); font-size: .88rem; }

/* ---------- Alertas ---------- */
.alerta { padding: 11px 14px; border-radius: var(--radio-sm); font-size: .9rem; margin-bottom: 16px; display: none; }
.alerta.error { background: var(--danger-bg); color: var(--danger); display: block; }
.alerta.ok { background: var(--ok-bg); color: var(--ok); display: block; }

/* ---------- Tarjetas ---------- */
.tarjeta {
  background: var(--surface); border: 1px solid var(--border);
  border-radius: var(--radio); padding: 32px; width: 100%; max-width: 440px;
  box-shadow: var(--shadow);
}
.tarjeta.ancha { max-width: 580px; }
.tarjeta.admin { max-width: 1040px; }

/* Tablas anchas (admin): se desplazan en horizontal dentro de la tarjeta
   en vez de salirse del borde. */
.tabla-scroll { overflow-x: auto; }
.tabla-scroll table { min-width: 720px; }

.cabecera { display: flex; justify-content: space-between; align-items: center; gap: 12px; margin-bottom: 22px; flex-wrap: wrap; row-gap: 10px; }
.cabecera-acciones { display: flex; gap: 8px; align-items: center; flex-wrap: wrap; }

/* ---------- Marca ---------- */
.marca { font-size: 1.2rem; font-weight: 800; color: var(--primary); text-decoration: none; letter-spacing: -.01em; display: inline-flex; align-items: center; }
.marca--light { color: #fff; }
.marca img { height: 34px; width: auto; display: block; }
/* En modo oscuro el header tiene fondo oscuro: el logo (azul marino) se pasa a blanco */
[data-tema="oscuro"] .nav .marca img { filter: brightness(0) invert(1); }

/* ============================================================
   Login / Registro — tarjeta centrada con mockup
   ============================================================ */
.auth-card {
  display: flex; width: 100%; max-width: 940px;
  background: var(--surface); border: 1px solid var(--border);
  border-radius: 20px; overflow: hidden; box-shadow: var(--shadow);
}
.auth-card__visual {
  flex: 1; background: var(--grad); color: #fff;
  padding: 40px 36px; display: flex; flex-direction: column; gap: 22px; justify-content: center;
}
.auth-card__visual .marca img { filter: brightness(0) invert(1); height: 30px; }
.auth-card__visual h2 { font-size: 1.55rem; margin: 0; line-height: 1.25; }
.auth-card__form {
  flex: 1; position: relative; padding: 56px 40px 44px;
  display: flex; flex-direction: column; justify-content: center;
}
.volver {
  position: absolute; top: 22px; left: 24px;
  font-size: .85rem; color: var(--muted); text-decoration: none; font-weight: 600;
}
.volver:hover { color: var(--primary); }
.auth-card .mockup { max-width: 100%; }

@media (max-width: 820px) {
  .auth-card { flex-direction: column; max-width: 420px; }
  .auth-card__visual { padding: 28px; gap: 16px; }
  .auth-card__visual .mockup { display: none; }   /* compacto en móvil */
  .auth-card__visual h2 { font-size: 1.3rem; }
  .auth-card__form { padding: 30px 26px; }
}

/* ============================================================
   Landing
   ============================================================ */
.nav {
  display: flex; justify-content: space-between; align-items: center;
  padding: 18px 6vw; max-width: 1100px; margin: 0 auto;
}
.nav-acciones { display: flex; gap: 10px; align-items: center; }

.hero {
  display: grid; grid-template-columns: 1.05fr .95fr; gap: 48px; align-items: center;
  max-width: 1080px; margin: 0 auto; padding: 52px 24px 56px;
}
.hero h1 { font-size: 2.7rem; line-height: 1.08; margin: 0 0 16px; letter-spacing: -.02em; }
.hero p { font-size: 1.18rem; color: var(--muted); margin: 0 0 32px; max-width: 480px; }
.hero-cta { display: flex; gap: 12px; flex-wrap: wrap; }

/* Mockup del producto (solo CSS) */
.hero-visual { display: flex; justify-content: center; position: relative; }
.mockup {
  width: 100%; max-width: 400px; background: var(--surface);
  border: 1px solid var(--border); border-radius: 16px; box-shadow: var(--shadow); overflow: hidden;
}
.mockup__bar { display: flex; align-items: center; gap: 6px; padding: 12px 14px; background: var(--surface-2); border-bottom: 1px solid var(--border); }
.mockup__dot { width: 11px; height: 11px; border-radius: 50%; }
.mockup__dot.r { background: #ff5f57; } .mockup__dot.y { background: #febc2e; } .mockup__dot.g { background: #28c840; }
.mockup__title { margin-left: 8px; font-size: .78rem; color: var(--muted); }
.mockup__body { padding: 18px; }
.mockup__file { display: flex; align-items: center; gap: 10px; background: var(--surface-2); border: 1px solid var(--border); border-radius: 10px; padding: 10px 12px; font-size: .86rem; }
.mockup__file .check { margin-left: auto; color: var(--ok); font-weight: 800; }
.mockup__wave { display: flex; align-items: center; gap: 3px; height: 36px; margin: 16px 2px; }
.mockup__wave span { flex: 1; height: 100%; background: var(--primary); border-radius: 2px; transform: scaleY(.3); animation: onda 1.3s ease-in-out infinite; }
@keyframes onda { 0%, 100% { transform: scaleY(.25); } 50% { transform: scaleY(1); } }
.mockup__cap { font-size: .72rem; color: var(--muted); text-transform: uppercase; letter-spacing: .05em; margin: 6px 0 8px; }
.mockup__texto { font-size: .9rem; color: var(--text); line-height: 1.55; }
.mockup__badge {
  position: absolute; bottom: -14px; right: 8px;
  background: var(--surface); border: 1px solid var(--border); box-shadow: var(--shadow-sm);
  border-radius: 999px; padding: 8px 14px; font-size: .8rem; font-weight: 600;
}
@media (prefers-reduced-motion: reduce) { .mockup__wave span { animation: none; transform: scaleY(.6); } }

.features {
  max-width: 980px; margin: 20px auto 60px; padding: 0 24px;
  display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px;
}
.feature {
  background: var(--surface); border: 1px solid var(--border);
  border-radius: var(--radio); padding: 26px; box-shadow: var(--shadow-sm);
}
.feature .ico { font-size: 1.8rem; }
.feature h3 { margin: 12px 0 6px; font-size: 1.1rem; }
.feature p { margin: 0; color: var(--muted); font-size: .95rem; }

.pie { text-align: center; color: var(--muted); font-size: .85rem; padding: 30px; border-top: 1px solid var(--border); }

@media (max-width: 860px) {
  .hero { grid-template-columns: 1fr; text-align: center; gap: 36px; padding-top: 36px; }
  .hero p { margin-left: auto; margin-right: auto; }
  .hero-cta { justify-content: center; }
  .hero-visual { order: 2; }
  .hero h1 { font-size: 2.1rem; }
}
@media (max-width: 720px) {
  .features { grid-template-columns: 1fr; }
}

/* ============================================================
   Estado de cuenta (panel / transcribir)
   ============================================================ */
.estado { border-radius: var(--radio); padding: 22px; margin-bottom: 22px; border: 1px solid var(--border); }
.estado .badge {
  display: inline-block; padding: 4px 12px; border-radius: 999px;
  font-size: .76rem; font-weight: 800; text-transform: uppercase; letter-spacing: .04em;
}
.estado.prueba { background: var(--primary-bg); }
.estado.prueba .badge { background: var(--primary); color: #fff; }
.estado.activo { background: var(--ok-bg); }
.estado.activo .badge { background: var(--ok); color: #fff; }
.estado.vencido { background: var(--danger-bg); }
.estado.vencido .badge { background: var(--danger); color: #fff; }
.estado .dias { font-size: 2.1rem; font-weight: 800; margin: 10px 0 2px; }
.estado .detalle { color: var(--muted); font-size: .92rem; }

.seccion-titulo { font-size: 1rem; font-weight: 700; margin: 0 0 4px; }

/* Canje de clave */
.fila-clave { display: flex; gap: 10px; }
.fila-clave input { text-transform: uppercase; letter-spacing: .05em; }
.fila-clave button { width: auto; margin: 0; white-space: nowrap; }

/* ============================================================
   Dashboard de administrador — hub central + vistas
   ============================================================ */
.hub {
  min-height: 100vh; display: flex; flex-direction: column;
  align-items: center; justify-content: center; gap: 34px; padding: 40px 24px; text-align: center;
}
.hub__logo img { height: 54px; width: auto; }
[data-tema="oscuro"] .hub__logo img { filter: brightness(0) invert(1); }
.hub__titulo { font-size: 1.2rem; margin: -10px 0 0; color: var(--muted); font-weight: 600; }

.hub-grid { display: flex; flex-wrap: wrap; justify-content: center; gap: 26px; max-width: 480px; }
.hub-grid button {
  width: 118px; background: transparent; border: 0; cursor: pointer; padding: 0;
  display: flex; flex-direction: column; align-items: center; gap: 12px;
  color: var(--text); font-weight: 600; font-size: .95rem;
}
.circulo {
  width: 104px; height: 104px; border-radius: 50%;
  background: var(--primary-bg); border: 1px solid var(--border); color: var(--primary);
  display: flex; align-items: center; justify-content: center;
  transition: transform .12s, box-shadow .25s, border-color .25s;
}
.circulo svg { width: 42px; height: 42px; }
.hub-grid button:hover .circulo { transform: translateY(-5px); border-color: var(--primary); box-shadow: var(--shadow); }
.hub-foot { display: flex; gap: 10px; align-items: center; }

.vista-seccion { min-height: 100vh; display: flex; flex-direction: column; }
.topbar {
  display: flex; justify-content: space-between; align-items: center; gap: 12px;
  padding: 16px 24px; border-bottom: 1px solid var(--border); background: var(--surface);
}
.topbar h1 { font-size: 1.2rem; margin: 0; }
.topbar-izq { display: flex; align-items: center; gap: 14px; }
.topbar-der { display: flex; align-items: center; gap: 12px; }
.contenido { padding: 26px 28px; flex: 1; }

/* Tarjetas de estadísticas */
.dash-grupo { margin-bottom: 28px; }
.dash-titulo { font-size: .78rem; text-transform: uppercase; letter-spacing: .05em; color: var(--muted); font-weight: 700; margin: 0 0 14px; }

.stats-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(180px, 1fr)); gap: 14px; }
.stat {
  background: var(--surface); border: 1px solid var(--border); border-radius: 14px;
  padding: 16px 18px; box-shadow: var(--shadow-sm);
  display: flex; align-items: center; gap: 14px;
}
.stat-ico { width: 46px; height: 46px; border-radius: 12px; flex-shrink: 0; display: flex; align-items: center; justify-content: center; }
.stat-ico svg { width: 24px; height: 24px; }
.stat-ico.neutral { background: var(--surface-2); color: var(--text); }
.stat-ico.info { background: var(--primary-bg); color: var(--primary); }
.stat-ico.ok { background: var(--ok-bg); color: var(--ok); }
.stat-ico.danger { background: var(--danger-bg); color: var(--danger); }
.stat .n { font-size: 1.7rem; font-weight: 800; line-height: 1; }
.stat .l { color: var(--muted); font-size: .85rem; margin-top: 3px; }

/* Barra de distribución (apilada) + leyenda */
.barra-dist { display: flex; height: 12px; border-radius: 99px; overflow: hidden; background: var(--surface-2); margin-top: 18px; }
.barra-dist .seg { height: 100%; }
.leyenda { display: flex; gap: 18px; flex-wrap: wrap; margin-top: 10px; font-size: .82rem; color: var(--muted); }
.leyenda .pt { display: inline-flex; align-items: center; gap: 6px; }
.leyenda .punto { width: 10px; height: 10px; border-radius: 50%; }

@media (max-width: 620px) {
  .hub-grid { grid-template-columns: repeat(2, 1fr); gap: 20px; }
  .circulo { width: 92px; height: 92px; font-size: 2rem; }
  .topbar { padding: 14px 18px; }
  .contenido { padding: 20px; }
}

/* ============================================================
   Panel de administrador
   ============================================================ */
.tabs { display: flex; gap: 6px; border-bottom: 1px solid var(--border); margin-bottom: 22px; flex-wrap: wrap; }
.tabs button {
  width: auto; margin: 0; padding: 10px 18px; background: transparent; color: var(--muted);
  border: 0; border-bottom: 3px solid transparent; font-weight: 600; border-radius: 0;
}
.tabs button:hover { background: transparent; color: var(--text); }
.tabs button.activa { color: var(--primary); border-bottom-color: var(--primary); }

.panel-seccion { display: none; }
.panel-seccion.activa { display: block; }

.fila { display: flex; gap: 10px; flex-wrap: wrap; align-items: flex-end; }
.fila > div { flex: 1; min-width: 120px; }
.fila label { margin-top: 0; }
.fila button { width: auto; margin: 0; white-space: nowrap; }

table { width: 100%; border-collapse: collapse; margin-top: 16px; font-size: .88rem; }
th, td { text-align: left; padding: 9px 10px; border-bottom: 1px solid var(--border); }
th { color: var(--muted); font-weight: 600; font-size: .78rem; text-transform: uppercase; }
td.clave { font-family: ui-monospace, monospace; letter-spacing: .03em; }

.pill { display: inline-block; padding: 3px 10px; border-radius: 999px; font-size: .74rem; font-weight: 700; }
.pill.unused, .pill.prueba { background: var(--primary-bg); color: var(--primary); }
.pill.redeemed, .pill.activo { background: var(--ok-bg); color: var(--ok); }
.pill.revoked, .pill.vencido { background: var(--danger-bg); color: var(--danger); }

.claves-generadas { margin-top: 16px; }
.clave-item {
  display: flex; justify-content: space-between; align-items: center;
  background: var(--surface-2); border: 1px solid var(--border); border-radius: var(--radio-sm);
  padding: 10px 14px; margin-bottom: 8px;
  font-family: ui-monospace, monospace; font-size: 1.05rem; letter-spacing: .05em;
}
.clave-item button { width: auto; margin: 0; padding: 6px 12px; font-size: .8rem; }

/* Botones de acción en la tabla (CRUD) */
td.acciones { white-space: nowrap; }
.mini {
  width: auto; margin: 0 4px 0 0; padding: 5px 9px; font-size: .74rem; font-weight: 600;
  background: var(--surface-2); color: var(--text); border: 1px solid var(--border);
}
.mini:hover { background: var(--surface-2); border-color: var(--primary); color: var(--primary); }
.mini.peligro:hover { border-color: var(--danger); color: var(--danger); }

/* ============================================================
   Diálogos / modales (confirmar, preguntar, elegir)
   ============================================================ */
.modal-overlay {
  position: fixed; inset: 0; z-index: 1000; padding: 20px;
  background: rgba(10, 16, 26, .55);
  display: flex; align-items: center; justify-content: center;
  opacity: 0; transition: opacity .15s ease;
}
.modal-overlay.visible { opacity: 1; }
.modal {
  background: var(--surface); border: 1px solid var(--border);
  border-radius: 16px; box-shadow: var(--shadow);
  width: 100%; max-width: 400px; padding: 26px;
  transform: translateY(10px) scale(.98); transition: transform .15s ease;
}
.modal-overlay.visible .modal { transform: none; }
.modal h3 { margin: 0 0 8px; font-size: 1.15rem; }
.modal h3.peligro { color: var(--danger); }
.modal p { margin: 0 0 18px; color: var(--muted); font-size: .95rem; }
.modal .modal-input { margin-bottom: 18px; }
.modal-opciones { display: flex; flex-direction: column; gap: 8px; margin-bottom: 16px; }
.modal-opciones button { width: 100%; }
.modal-acciones { display: flex; gap: 10px; justify-content: flex-end; }
.modal-acciones button { width: auto; margin: 0; padding: 10px 18px; }
.modal-acciones .btn-cancelar { background: transparent; color: var(--text); border: 1px solid var(--border); }
.modal-acciones .btn-cancelar:hover { background: var(--surface-2); }
.modal-acciones .btn-peligro { background: var(--danger); }
.modal-acciones .btn-peligro:hover { background: #c0392b; }

/* ============================================================
   Ajustes responsive (móvil)
   ============================================================ */
@media (max-width: 560px) {
  .nav { flex-wrap: wrap; row-gap: 12px; padding: 14px 20px; }
  .nav .marca img { height: 28px; }
  .nav-acciones { gap: 8px; }

  .topbar { flex-wrap: wrap; row-gap: 8px; padding: 14px 18px; }
  #admin-email { display: none; }

  .hero h1 { font-size: 1.9rem; }
  .estado .dias { font-size: 1.8rem; }
  .stat .n { font-size: 1.5rem; }
}