/* ═══════════════════════════════════════════════════════════════
   Recepcionista Virtual - web pública v2 (solo clínicas)
   Estética "clínica premium": blanco frío + azul profundo.
   Pitch: plata que se pierde hoy → cómo el sistema la recupera.

   Sistema de radios (regla documentada):
     - cards / celdas / chat: 1rem
     - botones y chips: pill (999px)
     - burbujas de chat: 1rem con una esquina de 4px (cola)
   Color: 1 acento (azul primario). Rojo ladrillo SOLO como estado
   semántico en cifras de pérdida de la sección "hoy".
   Escala z-index: 10 nav
   ═══════════════════════════════════════════════════════════════ */

/* ── Tokens ── */
:root {
  --bg: #f6f8fa;
  --surface: #ffffff;
  --surface2: #edf1f5;
  --border: #dbe3ea;
  --text: #14202b;
  --muted: #51616f;
  --primary: #114e7f;
  --primary-hover: #0d4270;
  --primary-contrast: #f4f8fb;
  --perdida: #b3382e;
  --tinte-azul: rgba(17, 78, 127, 0.07);
  --tinte-perdida: rgba(179, 56, 46, 0.06);
  --glow: rgba(17, 78, 127, 0.14);
  --sombra: 0 24px 60px -24px rgba(20, 32, 43, 0.16);
  --font-sans: "Hanken Grotesk", system-ui, -apple-system, "Segoe UI", sans-serif;
  color-scheme: light;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #0d1620;
    --surface: #131e2a;
    --surface2: #1a2735;
    --border: #2a3a4a;
    --text: #e8eef4;
    --muted: #93a5b5;
    --primary: #5aa2e0;
    --primary-hover: #74b2e8;
    --primary-contrast: #0a1723;
    --perdida: #e07a6e;
    --tinte-azul: rgba(90, 162, 224, 0.1);
    --tinte-perdida: rgba(224, 122, 110, 0.09);
    --glow: rgba(90, 162, 224, 0.12);
    --sombra: 0 24px 60px -24px rgba(0, 0, 0, 0.55);
    color-scheme: dark;
  }
}

/* ── Base ── */
*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  scroll-padding-top: 5.5rem;
}

body {
  margin: 0;
  overflow-x: clip;
  background-color: var(--bg);
  color: var(--text);
  font-family: var(--font-sans);
  font-size: 1.0625rem;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  transition: background-color 0.25s ease, color 0.25s ease;
}

:focus-visible {
  outline: 2px solid var(--primary);
  outline-offset: 2px;
  border-radius: 4px;
}

::selection {
  background: color-mix(in srgb, var(--primary) 22%, transparent);
}

img,
svg {
  max-width: 100%;
  display: block;
}

a {
  color: var(--primary);
  text-decoration-thickness: 1px;
  text-underline-offset: 3px;
}

h1,
h2,
h3 {
  font-weight: 700;
  line-height: 1.12;
  margin: 0 0 1rem;
  letter-spacing: -0.02em;
  text-wrap: balance;
}

p {
  margin: 0 0 1rem;
}

.contenedor {
  max-width: 72rem;
  margin-inline: auto;
  padding-inline: clamp(1.25rem, 5vw, 3rem);
}

.ic {
  width: 1.375rem;
  height: 1.375rem;
  flex: none;
}

/* ── Botones ── */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.8rem 1.6rem;
  border-radius: 999px;
  border: 1px solid transparent;
  font: 600 1rem/1.2 var(--font-sans);
  text-decoration: none;
  cursor: pointer;
  white-space: nowrap;
  transition: transform 0.18s ease, box-shadow 0.18s ease, background-color 0.18s ease;
}

.btn:hover {
  transform: translateY(-1px);
  box-shadow: 0 10px 24px -12px var(--glow);
  background-color: var(--primary-hover);
}

.btn:active {
  transform: scale(0.98);
}

.btn-primario {
  background: var(--primary);
  color: var(--primary-contrast);
}

.btn-secundario {
  background: transparent;
  color: var(--text);
  border-color: var(--border);
}

.btn-secundario:hover {
  border-color: var(--primary);
  background: transparent;
  box-shadow: none;
}

/* Botón claro para bandas azules */
.btn-invertido {
  background: var(--primary-contrast);
  color: var(--primary);
}

.btn-invertido:hover {
  background: var(--primary-contrast);
}

.btn .ic {
  width: 1.125rem;
  height: 1.125rem;
}

/* ── Nav ── */
.nav {
  position: sticky;
  top: 0;
  z-index: 10;
  height: 4.25rem;
  display: flex;
  align-items: center;
  background: color-mix(in srgb, var(--bg) 84%, transparent);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
}

.nav-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1.5rem;
  width: 100%;
}

.marca {
  font-weight: 700;
  font-size: 1.15rem;
  color: var(--text);
  text-decoration: none;
  letter-spacing: -0.02em;
}

.nav-links {
  display: flex;
  gap: 1.75rem;
}

.nav-links a {
  color: var(--muted);
  text-decoration: none;
  font-weight: 500;
  font-size: 0.95rem;
  transition: color 0.18s ease;
}

.nav-links a:hover {
  color: var(--text);
}

.nav-acciones {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.nav-acciones .btn {
  padding: 0.55rem 1.2rem;
  font-size: 0.9rem;
}

/* ── Hero ── */
.hero {
  position: relative;
  overflow: hidden;
}

.hero::after {
  content: "";
  position: absolute;
  inset: 0;
  z-index: -1;
  background: radial-gradient(44rem 26rem at 88% 8%, var(--glow), transparent 65%);
}

.hero-inner {
  display: grid;
  grid-template-columns: 1.15fr 0.85fr;
  gap: clamp(2.5rem, 6vw, 5rem);
  align-items: center;
  min-height: calc(100dvh - 4.25rem);
  padding-block: clamp(2.5rem, 5vh, 4.5rem);
}

.hero h1 {
  font-size: clamp(2.3rem, 3.3vw, 2.9rem);
  margin-bottom: 1.25rem;
}

.hero-sub {
  font-size: 1.2rem;
  color: var(--muted);
  max-width: 34rem;
  margin-bottom: 2rem;
}

.hero-ctas {
  display: flex;
  gap: 0.9rem;
  flex-wrap: wrap;
}

/* ── Secciones ── */
.seccion {
  padding-block: clamp(4rem, 9vh, 7rem);
}

.seccion h2 {
  font-size: clamp(1.8rem, 3.2vw, 2.5rem);
  max-width: 42rem;
  margin-bottom: clamp(2rem, 5vh, 3.5rem);
}

/* ── "Qué hace": funciones + chat ── */
.solucion-grid {
  display: grid;
  grid-template-columns: 1.05fr 0.95fr;
  gap: clamp(2.5rem, 5vw, 4.5rem);
  align-items: start;
}

.soluciones {
  display: flex;
  flex-direction: column;
  gap: 1.75rem;
}

.solucion {
  display: flex;
  gap: 1.25rem;
  align-items: flex-start;
}

.solucion-icono {
  width: 2.75rem;
  height: 2.75rem;
  flex: none;
  border-radius: 999px;
  display: grid;
  place-items: center;
  background: var(--tinte-azul);
  color: var(--primary);
}

.solucion-icono .ic {
  width: 1.25rem;
  height: 1.25rem;
}

.solucion h3 {
  font-size: 1.15rem;
  margin-bottom: 0.3rem;
}

.solucion p {
  color: var(--muted);
  font-size: 0.98rem;
  margin: 0;
}

/* Chat demo (preview real del producto: el servicio ES una conversación) */
.chat-columna {
  position: sticky;
  top: 5.5rem;
}

.chat {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 1rem;
  box-shadow: var(--sombra);
  overflow: hidden;
  max-width: 26rem;
  margin-inline: auto;
  width: 100%;
}

.chat-cabecera {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  padding: 0.9rem 1.1rem;
  background: var(--primary);
  color: var(--primary-contrast);
}

.chat-avatar {
  width: 2.25rem;
  height: 2.25rem;
  border-radius: 999px;
  background: color-mix(in srgb, var(--primary-contrast) 22%, transparent);
  display: grid;
  place-items: center;
  font: 600 0.8rem var(--font-sans);
  letter-spacing: 0.02em;
}

.chat-nombre {
  font-weight: 600;
  font-size: 0.95rem;
  line-height: 1.2;
}

.chat-estado {
  font-size: 0.75rem;
  opacity: 0.75;
}

.chat-cuerpo {
  display: flex;
  flex-direction: column;
  gap: 0.6rem;
  padding: 1.1rem;
}

.burbuja {
  max-width: 85%;
  padding: 0.65rem 0.9rem;
  border-radius: 1rem;
  font-size: 0.92rem;
  line-height: 1.45;
}

.burbuja time {
  display: block;
  font-size: 0.68rem;
  color: var(--muted);
  margin-top: 0.3rem;
  text-align: right;
}

.burbuja-cliente {
  align-self: flex-end;
  background: var(--surface2);
  border-bottom-right-radius: 4px;
}

.burbuja-asistente {
  align-self: flex-start;
  background: var(--tinte-azul);
  border: 1px solid color-mix(in srgb, var(--primary) 18%, transparent);
  border-bottom-left-radius: 4px;
}

.burbuja-asistente time {
  text-align: left;
}

.chat-nota {
  text-align: center;
  font-size: 0.85rem;
  color: var(--muted);
  margin-top: 0.9rem;
}

@media (prefers-reduced-motion: no-preference) {
  .chat .burbuja {
    opacity: 0;
    transform: translateY(10px);
    animation: aparecer 0.5s cubic-bezier(0.16, 1, 0.3, 1) forwards;
  }
  .chat .burbuja:nth-child(1) { animation-delay: 0.4s; }
  .chat .burbuja:nth-child(2) { animation-delay: 1.3s; }
  .chat .burbuja:nth-child(3) { animation-delay: 2.3s; }
  .chat .burbuja:nth-child(4) { animation-delay: 3.2s; }
}

@keyframes aparecer {
  to {
    opacity: 1;
    transform: none;
  }
}

/* ── FAQ ── */
.faq {
  max-width: 46rem;
}

.faq details {
  border-bottom: 1px solid var(--border);
}

.faq summary {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 1.2rem 0;
  cursor: pointer;
  font-weight: 600;
  font-size: 1.05rem;
  list-style: none;
}

.faq summary::-webkit-details-marker {
  display: none;
}

.faq details p {
  color: var(--muted);
  margin: 0 0 1.2rem;
  max-width: 60ch;
}

/* ── Banda CTA final ── */
.banda {
  background: var(--primary);
  color: var(--primary-contrast);
  border-radius: 1rem;
  padding: clamp(2.5rem, 6vh, 4.5rem) clamp(1.5rem, 5vw, 4rem);
  text-align: center;
  position: relative;
  overflow: hidden;
}

.banda::after {
  content: "";
  position: absolute;
  inset: 0;
  background: radial-gradient(30rem 16rem at 80% 0%, rgba(255, 255, 255, 0.12), transparent 70%);
  pointer-events: none;
}

.banda h2 {
  font-size: clamp(1.8rem, 3.2vw, 2.4rem);
  max-width: 34rem;
  margin-inline: auto;
  margin-bottom: 1rem;
}

.banda p {
  opacity: 0.88;
  max-width: 36rem;
  margin-inline: auto;
  margin-bottom: 2rem;
}

.banda .btn {
  position: relative;
}

/* ── Footer ── */
.footer {
  border-top: 1px solid var(--border);
  background: var(--surface2);
  padding-block: 2.5rem 2rem;
  margin-top: clamp(4rem, 9vh, 7rem);
  font-size: 0.95rem;
}

.footer-links {
  display: flex;
  flex-wrap: wrap;
  gap: 1.5rem;
  margin-bottom: 1.25rem;
}

.footer a {
  color: var(--text);
  text-decoration: none;
}

.footer a:hover {
  color: var(--primary);
  text-decoration: underline;
}

.footer-base {
  border-top: 1px solid var(--border);
  padding-top: 1.5rem;
  color: var(--muted);
  font-size: 0.85rem;
}

/* ── Páginas legales ── */
.prosa {
  max-width: 65ch;
  margin-inline: auto;
  padding-block: clamp(3rem, 7vh, 5rem);
}

.prosa h1 {
  font-size: clamp(2rem, 3.6vw, 2.7rem);
  margin-bottom: 0.5rem;
}

.prosa .actualizado {
  color: var(--muted);
  font-size: 0.9rem;
  margin-bottom: 2.5rem;
}

.prosa h2 {
  font-size: 1.35rem;
  margin: 2.5rem 0 0.75rem;
}

.prosa p,
.prosa li {
  color: color-mix(in srgb, var(--text) 88%, var(--muted));
}

.prosa ul {
  padding-left: 1.25rem;
  margin: 0 0 1rem;
}

.prosa li {
  margin-bottom: 0.4rem;
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }
  .btn {
    transition: none;
  }
}

/* ── Landing: piezas nuevas ── */
.etiqueta {
  display: inline-block;
  font-size: 0.85rem;
  font-weight: 600;
  letter-spacing: 0.02em;
  color: var(--primary);
  background: var(--tinte-azul);
  border-radius: 999px;
  padding: 0.3rem 0.8rem;
  margin-bottom: 1.25rem;
}

.hero-nota {
  margin-top: 1.25rem;
  font-size: 0.95rem;
  color: var(--muted);
}

.seccion-intro {
  color: var(--muted);
  max-width: 40rem;
  margin-top: -1.5rem;
  margin-bottom: 2.5rem;
}

.tarjetas {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.25rem;
}

.tarjeta {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 1rem;
  padding: 1.75rem;
}

.tarjeta h3 {
  font-size: 1.15rem;
  margin-bottom: 0.5rem;
}

.tarjeta p {
  color: var(--muted);
  margin: 0;
}

.pasos {
  list-style: none;
  padding: 0;
  margin: 0;
  counter-reset: paso;
}

.pasos .tarjeta {
  counter-increment: paso;
}

.pasos .tarjeta::before {
  content: counter(paso);
  display: grid;
  place-items: center;
  width: 2.25rem;
  height: 2.25rem;
  border-radius: 999px;
  background: var(--primary);
  color: var(--primary-contrast);
  font-weight: 700;
  margin-bottom: 1rem;
}

.demo {
  display: flex;
  gap: 1.5rem 2.5rem;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  background: var(--tinte-azul);
  border: 1px solid var(--border);
  border-radius: 1rem;
  padding: clamp(1.75rem, 4vw, 2.75rem);
}

.demo h2 {
  margin-bottom: 0.5rem;
}

.demo p {
  color: var(--muted);
  margin: 0;
  max-width: 36rem;
}

.precio {
  display: grid;
  grid-template-columns: 0.9fr 1.1fr;
  gap: clamp(1.5rem, 4vw, 3rem);
  align-items: center;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 1rem;
  box-shadow: var(--sombra);
  padding: clamp(1.75rem, 4vw, 3rem);
}

.precio-cifra {
  font-size: clamp(2.8rem, 6vw, 3.8rem);
  font-weight: 700;
  line-height: 1;
  color: var(--text);
}

.precio-cifra small {
  font-size: 1.1rem;
  font-weight: 500;
  color: var(--muted);
}

.precio-extra {
  color: var(--muted);
  margin: 0.75rem 0 1.5rem;
}

.lista-check {
  list-style: none;
  padding: 0;
  margin: 0;
  display: grid;
  gap: 0.85rem;
}

.lista-check li {
  display: flex;
  gap: 0.7rem;
  align-items: flex-start;
}

.lista-check .ic {
  flex: none;
  width: 1.2rem;
  height: 1.2rem;
  margin-top: 0.2rem;
  color: var(--primary);
}

.precio-nota {
  grid-column: 1 / -1;
  font-size: 0.9rem;
  color: var(--muted);
  margin: 0;
}

.faq summary::after {
  content: "+";
  flex: none;
  font-size: 1.4rem;
  line-height: 1;
  color: var(--primary);
  transition: transform 0.2s ease;
}

.faq details[open] summary::after {
  transform: rotate(45deg);
}

/* ── Responsive ── */
@media (max-width: 960px) {
  .nav-links {
    display: none;
  }
  .hero-inner,
  .solucion-grid,
  .precio {
    grid-template-columns: 1fr;
  }
  .hero-inner {
    min-height: 0;
    padding-block: 3rem;
  }
  .chat-columna {
    position: static;
  }
  .tarjetas {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 640px) {
  body {
    font-size: 1rem;
  }
  .nav-acciones .btn {
    padding: 0.55rem 0.9rem;
    font-size: 0.9rem;
  }
  .hero-ctas .btn,
  .demo .btn {
    width: 100%;
    justify-content: center;
  }
}