/* Misma estructura que xpertum.com.ar: barra con botones (una página por botón), franja oscura con título en color, tarjetas con ícono, pie oscuro. Colores SofIA. Un solo tema claro, a propósito. */
[hidden] { display: none !important; }
:root {
  --navy: #14213D;      /* barra y pie (en xpertum: negro) */
  --banda: #1E2B4A;     /* franja oscura de cada página (en xpertum: #212529) */
  --teal: #12A594;      /* acento (en xpertum: naranja) */
  --teal-osc: #0E7C70;
  --teal-claro: #2EC4B2;
  --gold: #F4A62A;
  --bg: #FFFFFF;
  --gris: #F8F9FA;
  --ink: #212529;
  --muted: #6C757D;
  --line: #DEE2E6;
  --wa: #25D366;
  --sys: system-ui, -apple-system, 'Segoe UI', Roboto, 'Helvetica Neue', 'Noto Sans', Arial, sans-serif;
  --logo: 'Sora', var(--sys);
  color-scheme: light;
}
* { box-sizing: border-box; }
body { margin: 0; background: var(--bg); color: var(--ink); font-family: var(--sys); font-size: 16px; line-height: 1.5; }
body::before { content: ""; position: fixed; inset: 0 0 auto; height: env(safe-area-inset-top, 0px); z-index: 30; background: var(--navy); }
h1, h2, h3 { margin: 0; line-height: 1.2; text-wrap: balance; }
p { margin: 0; }
a { color: var(--teal-osc); }
:focus-visible { outline: 3px solid var(--gold); outline-offset: 2px; }
.mi { font-family: 'Material Icons'; font-weight: normal; font-style: normal; line-height: 1; letter-spacing: normal; text-transform: none; white-space: nowrap; direction: ltr; -webkit-font-smoothing: antialiased; font-feature-settings: 'liga'; display: inline-block; overflow: hidden; width: 1em; }
.cont { max-width: 1140px; margin: 0 auto; padding-left: max(16px, env(safe-area-inset-left, 0px)); padding-right: max(16px, env(safe-area-inset-right, 0px)); }

/* Barra */
.barra { position: sticky; top: env(safe-area-inset-top, 0px); z-index: 20; background: var(--navy); }
.barra .cont { display: flex; align-items: center; flex-wrap: wrap; gap: 12px; padding-block: 10px; }
.marca { display: flex; align-items: center; gap: 10px; text-decoration: none; color: #fff; }
.marca svg { width: 42px; height: 42px; }
.marca b { font-family: var(--logo); font-size: 27px; letter-spacing: -.5px; line-height: 1; display: block; }
.marca b span { color: var(--teal-claro); }
.marca small { font-family: var(--logo); font-size: 10px; letter-spacing: 2px; color: #B8C1CF; display: block; margin-top: 3px; }
.toggler { display: none; margin-left: auto; background: none; border: 1px solid rgba(255,255,255,.25); border-radius: 6px; color: #fff; padding: 6px 10px; cursor: pointer; }
.toggler .mi { font-size: 28px; }
.menu { display: flex; align-items: center; gap: 4px; margin-left: auto; }
.menu a { color: rgba(255,255,255,.6); text-decoration: none; font-size: 17px; padding: 8px 10px; }
.menu a:hover { color: rgba(255,255,255,.85); }
.menu a.activo { color: #fff; }
.menu a.demo { margin-left: 10px; background: var(--teal); color: #fff; border-radius: 6px; padding: 8px 14px; font-size: 15px; font-weight: 600; }
.menu a.demo:hover { background: var(--teal-osc); }
@media (max-width: 991px) {
  .toggler { display: block; }
  .menu { display: none; flex-basis: 100%; flex-direction: column; align-items: stretch; padding-block: 6px 10px; }
  .menu.abierto { display: flex; }
  .menu a.demo { margin: 6px 0 0; text-align: center; }
}

/* Franja oscura del encabezado de cada página */
.banda { background: var(--banda); color: #fff; margin-top: 24px; }
.banda .cont { padding-block: 56px; display: grid; grid-template-columns: minmax(0, 1fr) auto; gap: 40px; align-items: center; }
.banda h1 { color: var(--teal-claro); font-size: clamp(32px, 4.4vw, 48px); font-weight: 700; margin-bottom: 16px; }
.banda p { font-size: 20px; font-weight: 300; color: #E9ECEF; max-width: 34em; }
@media (max-width: 860px) { .banda .cont { grid-template-columns: 1fr; padding-block: 40px; } }

/* Tarjetas con ícono, como las de servicios de xpertum */
.seccion { padding-block: 48px; }
.grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 24px; }
.grid.tres { grid-template-columns: repeat(3, minmax(0, 1fr)); }
@media (max-width: 860px) { .grid.tres { grid-template-columns: repeat(2, minmax(0, 1fr)); } }
@media (max-width: 640px) { .grid, .grid.tres { grid-template-columns: 1fr; } }
.card { background: #fff; border-radius: 6px; box-shadow: 0 .125rem .25rem rgba(0,0,0,.075); padding: 24px; display: flex; flex-direction: column; gap: 10px; min-width: 0; transition: transform .2s, box-shadow .2s; }
.card:hover { transform: translateY(-4px); box-shadow: 0 .5rem 1rem rgba(0,0,0,.12); }
@media (prefers-reduced-motion: reduce) { .card, .card:hover { transition: none; transform: none; } }
.card .mi { font-size: 44px; color: var(--teal); }
.card h3 { font-size: 22px; font-weight: 700; }
.card p { color: var(--ink); }
.card.ancha { grid-column: 1 / -1; background: var(--gris); }

/* Cierre de página */
.cierre { text-align: center; padding-block: 40px 56px; }
.cierre h3 { font-size: 24px; font-weight: 700; margin-bottom: 18px; }
.btns { display: flex; flex-wrap: wrap; gap: 12px; justify-content: center; }
.btn { display: inline-flex; align-items: center; justify-content: center; gap: 8px; text-decoration: none; font: 400 18px/1.4 var(--sys); padding: 10px 24px; border-radius: 6px; border: 1px solid var(--ink); cursor: pointer; }
.btn-borde { background: transparent; color: var(--ink); }
.btn-borde:hover { background: var(--ink); color: #fff; }
.btn-acento { background: var(--teal); border-color: var(--teal); color: #fff; }
.btn-acento:hover { background: var(--teal-osc); border-color: var(--teal-osc); }
.btn-oscuro { background: var(--ink); color: #fff; }
.btn-oscuro:hover { background: #000; }

/* Chat de ejemplo (en la franja de inicio), con pestañas por rubro */
.ejemplos { width: 330px; max-width: 100%; }
.pestanas { display: flex; gap: 6px; margin-bottom: 10px; }
.pestanas button { flex: 1; display: flex; align-items: center; justify-content: center; gap: 4px; font: inherit; font-size: 13px; font-weight: 600; padding: 7px 4px; border-radius: 6px; border: 1px solid rgba(255,255,255,.35); background: transparent; color: #fff; cursor: pointer; }
.pestanas button .mi { font-size: 17px; }
.pestanas button:hover { border-color: #fff; }
.pestanas button[aria-selected="true"] { background: var(--teal); border-color: var(--teal); }
.chat { width: 330px; max-width: 100%; border-radius: 12px; overflow: hidden; background: #ECE5DD; color: #111B21; font-size: 13.5px; box-shadow: 0 10px 30px rgba(0,0,0,.35); }
.chat-cab { background: #075E54; color: #fff; display: flex; align-items: center; gap: 10px; padding: 9px 12px; }
.chat-cab .av { width: 32px; height: 32px; border-radius: 50%; background: #fff; display: grid; place-items: center; }
.chat-cab .av svg { width: 22px; height: 22px; }
.chat-cab b { display: block; font-size: 14px; }
.chat-cab small { font-size: 11px; opacity: .8; }
.chat-cuerpo { display: flex; flex-direction: column; gap: 5px; padding: 12px 10px 14px; }
.msj { max-width: 88%; padding: 6px 9px 5px; border-radius: 8px; line-height: 1.38; white-space: pre-line; box-shadow: 0 1px 1px rgba(0,0,0,.08); }
.msj time { display: block; text-align: right; font-size: 10.5px; color: #667781; }
.in { align-self: flex-start; background: #fff; border-top-left-radius: 0; }
.out { align-self: flex-end; background: #D9FDD3; border-top-right-radius: 0; }

/* Barra gris con filtro, como la de la tienda de xpertum */
.filtro { background: var(--gris); border-bottom: 1px solid var(--line); }
.filtro .cont { display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; gap: 10px 20px; padding-block: 12px; }
.filtro label { font-weight: 700; margin-right: 8px; }
.filtro select { font: inherit; font-size: 15px; padding: 6px 36px 6px 10px; border: 1px solid var(--line); border-radius: 6px; background: #fff; min-width: 200px; max-width: 100%; }
.filtro .ayuda { font-size: 14px; color: var(--muted); }
.tit { display: flex; flex-wrap: wrap; align-items: baseline; justify-content: space-between; gap: 6px 20px; padding-block: 28px 14px; border-bottom: 1px solid var(--line); margin-bottom: 24px; }
.tit h2 { color: var(--teal); font-size: clamp(30px, 3.6vw, 40px); font-weight: 700; }
.tit p { font-size: 15px; color: var(--ink); }

/* Planes, con el formato de los productos de la tienda */
.planes { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 24px; }
@media (max-width: 860px) { .planes { grid-template-columns: repeat(2, minmax(0, 1fr)); } }
@media (max-width: 560px) { .planes { grid-template-columns: 1fr; } }
.plan { background: #fff; border-radius: 6px; box-shadow: 0 .125rem .25rem rgba(0,0,0,.075); padding: 14px 14px 16px; display: flex; flex-direction: column; gap: 6px; min-width: 0; }
.plan .foto { background: var(--gris); border-radius: 6px; height: 120px; display: grid; place-items: center; margin-bottom: 8px; }
.plan .foto .mi { font-size: 56px; color: var(--teal); }
.plan .meta { font-size: 14px; color: var(--ink); }
.plan .meta b { font-weight: 700; }
.plan h3 { font-size: 18px; font-weight: 700; }
.plan .usd { font-size: 14px; color: var(--muted); }
.plan .precio { font-size: 24px; font-weight: 700; color: var(--teal); font-variant-numeric: tabular-nums; }
.plan ul { margin: 2px 0 8px; padding-left: 18px; font-size: 14px; color: var(--ink); }
.plan .btn { margin-top: auto; width: 100%; font-size: 17px; background: var(--ink); color: #fff; }
.plan .btn:hover { background: #000; }
.planes.cuatro { grid-template-columns: repeat(4, minmax(0, 1fr)); }
@media (max-width: 1100px) { .planes.cuatro { grid-template-columns: repeat(2, minmax(0, 1fr)); } }
@media (max-width: 560px) { .planes.cuatro { grid-template-columns: 1fr; } }
.nota-ia { margin-top: 14px; font-size: 14px; color: var(--muted); max-width: 80ch; }
.notas { margin-top: 28px; display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 12px 24px; font-size: 14px; color: var(--muted); }
.notas b { color: var(--ink); }
@media (max-width: 760px) { .notas { grid-template-columns: 1fr; } }

/* Demo */
.demo-num { font-size: clamp(26px, 3.4vw, 34px); font-weight: 700; color: #fff; margin-top: 18px; font-variant-numeric: tabular-nums; user-select: all; }
.qr { background: #fff; color: var(--ink); padding: 14px; border-radius: 10px; width: 200px; text-align: center; font-size: 13px; }
.qr svg { display: block; width: 100%; height: auto; }
.qr span { display: block; margin-top: 8px; }
.banda .btns { justify-content: flex-start; margin-top: 22px; }
.banda .btn-borde { color: #fff; border-color: rgba(255,255,255,.6); }
.banda .btn-borde:hover { background: #fff; color: var(--ink); }

/* Preguntas */
.faq { display: grid; gap: 12px; }
.faq details { background: #fff; border-radius: 6px; box-shadow: 0 .125rem .25rem rgba(0,0,0,.075); }
.faq summary { cursor: pointer; list-style: none; padding: 16px 48px 16px 20px; font-weight: 700; position: relative; }
.faq summary::-webkit-details-marker { display: none; }
.faq summary::after { content: "expand_more"; font-family: 'Material Icons'; position: absolute; right: 16px; top: 50%; transform: translateY(-50%); font-size: 24px; color: var(--teal); }
.faq details[open] summary::after { content: "expand_less"; }
.faq details p { padding: 0 20px 18px; max-width: 70ch; }

/* Pie */
.pie { background: var(--navy); color: #fff; margin-top: 24px; }
.pie .cont { padding-block: 24px 18px; }
.pie .fila { display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; gap: 14px 30px; font-size: 15px; }
.pie .marca-txt { font-weight: 700; }
.pie .marca-txt span { font-weight: 400; color: #C9D1DE; }
.pie .dato { display: flex; align-items: center; gap: 6px; color: #fff; }
.pie .dato .mi { color: var(--teal-claro); font-size: 20px; }
.pie .redes { display: flex; gap: 14px; }
.pie .redes a { color: #fff; text-decoration: none; }
.pie .redes .mi { font-size: 22px; }
.pie .copy { border-top: 1px solid rgba(255,255,255,.15); margin-top: 18px; padding-top: 12px; text-align: center; font-size: 13px; color: #ADB5BD; }

.flota { position: fixed; right: calc(20px + env(safe-area-inset-right, 0px)); bottom: calc(20px + env(safe-area-inset-bottom, 0px)); width: 60px; height: 60px; border-radius: 50%; background: var(--wa); display: grid; place-items: center; box-shadow: 0 4px 12px rgba(0,0,0,.25); z-index: 25; }
.flota svg { width: 32px; height: 32px; }