/* Clínica del Aire · diseño de muestra de Andasolu (negocio ficticio).
   La portada es un termostato que funciona, y las averías se cuentan en una consulta: el doctor
   escribe una receta que se manda por WhatsApp. Colores: verde azulado, noche azul, hielo y calor. */

@font-face { font-family: "Lexend Exa"; src: url("fuentes/lexend-exa.woff2") format("woff2"); font-weight: 600; font-display: swap; }
@font-face { font-family: "Albert Sans"; src: url("fuentes/albert-sans.woff2") format("woff2"); font-weight: 400 700; font-display: swap; }

:root {
  --escarcha: #F3F5FA;
  --blanco: #FFFFFF;
  --noche: #0B1E2B;
  --noche-2: #12303F;
  --tinta: #0F1D26;
  --gris: #586074;
  --linea: #DDE2EC;
  --violeta: #0A6E8A;
  --violeta-2: #0E8CAD;
  --violeta-claro: #9BE3F5;
  --lila: #E3F5FA;
  --hielo: #5EC4F0;
  --calor: #FF7A3D;
  --wa: #0E7A41;
  --wa-osc: #0A5F33;

  --f-titulo: "Lexend Exa", "Arial", system-ui, sans-serif;
  --f-texto: "Albert Sans", system-ui, -apple-system, "Segoe UI", sans-serif;
  --radio: 22px;
}

*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: 80px; -webkit-text-size-adjust: 100%; }
body { margin: 0; background: var(--escarcha); color: var(--tinta); font: 400 1.0625rem/1.6 var(--f-texto); }
img { display: block; max-width: 100%; height: auto; }
a { color: var(--violeta); }
h1, h2, h3 { font-family: var(--f-titulo); font-weight: 600; line-height: 1.12; letter-spacing: -.035em; margin: 0; text-wrap: balance; }
h1 { font-size: clamp(1.95rem, 1.1rem + 3.3vw, 3.5rem); }
h2 { font-size: clamp(1.55rem, 1.1rem + 1.9vw, 2.45rem); }
h3 { font-size: 1.02rem; letter-spacing: -.02em; }
p { margin: 0 0 1em; }
:focus-visible { outline: 3px solid var(--hielo); outline-offset: 3px; border-radius: 6px; }
.sr { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; }
.saltar { position: absolute; left: -9999px; top: 12px; z-index: 100; background: var(--blanco); color: var(--tinta); padding: 10px 14px; border-radius: 8px; }
.saltar:focus { left: 12px; }
.envoltura { width: min(1180px, 100% - 32px); margin-inline: auto; }

.etiqueta { margin: 0 0 14px; font: 600 .72rem/1.3 var(--f-titulo); letter-spacing: .14em; text-transform: uppercase; color: var(--violeta-claro); }
.etiqueta--oscura { color: var(--violeta); }
.enlace { font-weight: 700; text-decoration: none; }
.enlace::after { content: " →"; transition: margin .15s; }
.enlace:hover::after { margin-left: 4px; }

/* ── botones ────────────────────────────────────────────────────────── */
.boton { display: inline-flex; align-items: center; gap: .55rem; padding: .75rem 1.2rem; border-radius: 999px; border: 2px solid transparent; font: 700 .98rem/1.2 var(--f-texto); text-decoration: none; cursor: pointer; transition: background-color .15s, transform .15s, border-color .15s, color .15s; }
.boton svg { width: 1.2em; height: 1.2em; flex: none; }
.boton:hover { transform: translateY(-1px); }
.boton--violeta { background: var(--violeta); color: #fff; }
.boton--violeta:hover { background: var(--violeta-2); }
.boton--wa { background: var(--wa); color: #fff; }
.boton--wa:hover { background: var(--wa-osc); }
.boton--claro { border-color: rgba(255, 255, 255, .3); color: #fff; }
.boton--claro:hover { border-color: #fff; }
.boton--linea { border-color: var(--tinta); color: var(--tinta); }
.boton--linea:hover { background: var(--tinta); color: #fff; }
.boton--grande { padding: 1rem 1.45rem; font-size: 1.05rem; }
.boton--ancho { width: 100%; justify-content: center; }

/* ── cabecera ───────────────────────────────────────────────────────── */
.cabecera { position: sticky; top: 0; z-index: 50; background: rgba(11, 30, 43, .94); backdrop-filter: blur(10px); border-bottom: 1px solid rgba(255, 255, 255, .07); }
.cabecera__fila { display: flex; align-items: center; gap: 24px; min-height: 72px; }
.marca img { width: 170px; }
.menu { display: flex; gap: 24px; margin-left: auto; }
.menu a { color: #DDEBF0; text-decoration: none; font-weight: 600; font-size: .95rem; padding: 6px 0; border-bottom: 2px solid transparent; }
.menu a:hover { border-bottom-color: var(--violeta-claro); }
.cabecera__acciones { display: flex; align-items: center; gap: 10px; }
.menu-boton { display: none; width: 46px; height: 46px; border: 0; border-radius: 12px; background: rgba(255, 255, 255, .08); cursor: pointer; }
.menu-boton__rayas, .menu-boton__rayas::before, .menu-boton__rayas::after { display: block; width: 20px; height: 2px; margin: auto; background: #fff; position: relative; transition: transform .2s; }
.menu-boton__rayas::before, .menu-boton__rayas::after { content: ""; position: absolute; left: 0; }
.menu-boton__rayas::before { top: -6px; }
.menu-boton__rayas::after { top: 6px; }
.menu-boton[aria-expanded="true"] .menu-boton__rayas { background: transparent; }
.menu-boton[aria-expanded="true"] .menu-boton__rayas::before { transform: translateY(6px) rotate(45deg); }
.menu-boton[aria-expanded="true"] .menu-boton__rayas::after { transform: translateY(-6px) rotate(-45deg); }

/* ── portada ────────────────────────────────────────────────────────── */
.portada { position: relative; overflow: hidden; background: radial-gradient(70% 90% at 85% 30%, #0F4B5E 0%, transparent 60%), var(--noche); color: #E6F1F5; padding-block: clamp(40px, 6vw, 84px); }
.aire { position: absolute; left: 0; right: 0; bottom: -40px; width: 100%; height: 70%; opacity: .55; pointer-events: none; }
.aire path { fill: none; stroke: url(#g-aire); stroke-width: 3; stroke-linecap: round; stroke-dasharray: 260 160; animation: corre 7s linear infinite; }
.aire path:nth-child(3) { animation-duration: 8.5s; opacity: .8; }
.aire path:nth-child(4) { animation-duration: 10s; opacity: .6; }
@keyframes corre { to { stroke-dashoffset: -840; } }
.portada__fila { position: relative; display: grid; grid-template-columns: 1.08fr .92fr; gap: 40px clamp(28px, 5vw, 72px); align-items: center; }
.portada h1 { color: #fff; max-width: 15ch; }
.portada__lead { margin-top: 20px; font-size: clamp(1.06rem, 1rem + .35vw, 1.2rem); color: #B9CFD8; max-width: 40ch; }
.portada__botones { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 28px; }
.portada__marcas { margin-top: 22px; font-size: .92rem; color: #93AEBB; }

/* el termostato */
.termostato { justify-self: center; width: min(400px, 100%); margin: 0; padding: 20px; border-radius: 32px; background: linear-gradient(160deg, #173E4E, #0C1B25); box-shadow: 0 50px 90px -40px rgba(0, 0, 0, .8), inset 0 1px 0 rgba(255, 255, 255, .09), inset 0 0 0 1px rgba(255, 255, 255, .05); }
.termostato__pantalla { display: grid; gap: 4px; padding: 18px 20px 14px; background: #0A0814; border-radius: 20px; box-shadow: inset 0 0 0 1px rgba(255, 255, 255, .06), inset 0 12px 30px rgba(0, 0, 0, .7); }
.lectura { position: relative; display: flex; flex-wrap: wrap; align-items: flex-start; gap: 0 6px; padding: 8px 0; color: var(--hielo); transition: color .4s; }
.lectura + .lectura { border-top: 1px dashed rgba(255, 255, 255, .1); padding-top: 14px; }
.lectura__nombre { flex: 1 0 100%; display: flex; align-items: center; gap: 8px; margin-bottom: 8px; font: 600 .68rem/1 var(--f-titulo); letter-spacing: .14em; text-transform: uppercase; color: #8EAAB7; }
.lectura__nombre svg { width: 16px; height: 16px; color: currentColor; }
.lectura--fuera .lectura__nombre svg { color: var(--calor); }
.lectura--casa .lectura__nombre svg { color: var(--hielo); }
.lectura--fuera { color: var(--calor); }
.lcd { display: inline-flex; gap: 7px; height: 48px; }
.lcd svg { height: 100%; width: auto; overflow: visible; }
.lcd--grande { height: 108px; gap: 12px; }
.lcd .seg { fill: currentColor; transition: opacity .15s; }
.lcd .seg.off { opacity: .07; }
.lcd--grande .seg:not(.off) { filter: drop-shadow(0 0 6px currentColor); }
.lectura__grados { font: 600 1.15rem/1 var(--f-titulo); margin-top: 4px; }
.ventilador { position: absolute; right: 0; bottom: 14px; display: flex; align-items: flex-end; gap: 4px; height: 34px; }
.ventilador i { width: 6px; border-radius: 2px; background: currentColor; opacity: .85; animation: sopla 1.1s ease-in-out infinite alternate; }
.ventilador i:nth-child(1) { height: 30%; animation-delay: -.2s; }
.ventilador i:nth-child(2) { height: 55%; animation-delay: -.5s; }
.ventilador i:nth-child(3) { height: 80%; animation-delay: -.1s; }
.ventilador i:nth-child(4) { height: 100%; animation-delay: -.7s; }
@keyframes sopla { from { transform: scaleY(.45); } to { transform: scaleY(1); } }
.ventilador i { transform-origin: bottom; }
.termostato[data-modo="calor"] .lectura--casa { color: var(--calor); }
.termostato[data-modo="calor"] .lectura--casa .lectura__nombre svg { color: var(--calor); }
.termostato[data-modo="calor"] .lectura--fuera { color: var(--hielo); }
.termostato[data-modo="calor"] .lectura--fuera .lectura__nombre svg { color: var(--hielo); }
.termostato__botones { display: grid; grid-template-columns: 1fr 1.5fr 1fr; gap: 10px; margin-top: 16px; }
.termostato__botones button { height: 54px; border-radius: 999px; border: 1px solid rgba(255, 255, 255, .12); background: rgba(255, 255, 255, .06); color: #fff; font: 500 1.6rem/1 var(--f-titulo); cursor: pointer; transition: background-color .15s, transform .1s; }
.termostato__botones button:hover { background: rgba(255, 255, 255, .13); }
.termostato__botones button:active { transform: scale(.96); }
.termostato__botones .termostato__modo { font-size: .74rem; letter-spacing: .14em; text-transform: uppercase; }
.termostato__pie { margin-top: 14px; text-align: center; font-size: .9rem; line-height: 1.45; color: #9DB8C4; min-height: 2.9em; }
.termostato__pie a { color: var(--violeta-claro); }

/* ── secciones ──────────────────────────────────────────────────────── */
.seccion { padding-block: clamp(64px, 9vw, 112px); }
.seccion__intro { margin-top: 14px; color: var(--gris); font-size: 1.1rem; max-width: 46ch; }

/* servicios */
.servicios { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; margin-top: 38px; }
.servicio { padding: 26px; background: var(--blanco); border: 1px solid var(--linea); border-radius: var(--radio); display: flex; flex-direction: column; }
.servicio p { color: var(--gris); font-size: 1rem; flex: 1; }
.servicio h3 { display: flex; align-items: center; gap: 12px; margin-bottom: 12px; }
.servicio h3 svg { flex: none; width: 44px; height: 44px; padding: 10px; border-radius: 14px; background: var(--lila); color: var(--violeta); }
.servicio--grande { grid-column: span 2; grid-row: span 2; padding: 0; overflow: hidden; }
.servicio--grande img { width: 100%; aspect-ratio: 16 / 9; object-fit: cover; }
.servicio__texto { padding: 26px 28px 28px; display: flex; flex-direction: column; flex: 1; }
.servicio--grande h3 { font-size: 1.25rem; }

/* la consulta */
.seccion--consulta { background: linear-gradient(180deg, #ECEFF8, var(--escarcha)); }
.consulta { display: grid; grid-template-columns: 1.05fr .95fr; gap: clamp(32px, 5vw, 72px); align-items: start; }
.formulario { display: grid; gap: 18px; margin-top: 28px; }
.pestanas { display: inline-grid; grid-template-columns: 1fr 1fr; padding: 5px; background: var(--blanco); border: 1px solid var(--linea); border-radius: 999px; max-width: 420px; }
.pestanas label { position: relative; cursor: pointer; }
.pestanas input, .chips input { position: absolute; opacity: 0; inset: 0; margin: 0; cursor: pointer; }
.pestanas span { display: block; padding: 11px 14px; border-radius: 999px; text-align: center; font-weight: 700; font-size: .95rem; transition: background-color .15s, color .15s; }
.pestanas input:checked + span { background: var(--violeta); color: #fff; }
.pestanas input:focus-visible + span, .chips input:focus-visible + span { outline: 3px solid var(--hielo); outline-offset: 2px; }
.grupo { border: 0; padding: 0; margin: 0; display: grid; gap: 16px; }
.grupo[hidden] { display: none; }
.grupo legend { padding: 0; margin-bottom: 10px; font-weight: 700; }
.chips { display: flex; flex-wrap: wrap; gap: 8px; }
.chips label { position: relative; }
.chips span { display: block; padding: 9px 15px; border-radius: 999px; background: var(--blanco); border: 1.5px solid var(--linea); font-weight: 600; font-size: .95rem; cursor: pointer; transition: border-color .15s, background-color .15s; }
.chips input:checked + span { border-color: var(--violeta); background: var(--lila); color: var(--violeta); }
.campo { display: grid; gap: 6px; font-weight: 700; font-size: .95rem; max-width: 420px; }
.campo select { appearance: none; width: 100%; padding: .75rem 2.6rem .75rem 1rem; border: 1.5px solid var(--linea); border-radius: 14px; background: var(--blanco) url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='8'%3E%3Cpath d='M1 1l5 5 5-5' fill='none' stroke='%2317142B' stroke-width='2'/%3E%3C/svg%3E") no-repeat right 1rem center; font: 400 1rem var(--f-texto); color: var(--tinta); }

.receta { position: sticky; top: 100px; background: var(--blanco); border-radius: 18px; box-shadow: 0 30px 60px -30px rgba(12, 27, 37, .35), 0 0 0 1px var(--linea); overflow: hidden; rotate: -1.2deg; }
.receta__cabeza { display: flex; justify-content: space-between; align-items: center; padding: 16px 22px; background: var(--violeta); color: #fff; }
.receta__marca { font: 600 1rem/1 var(--f-titulo); letter-spacing: -.02em; }
.receta__fecha { font-size: .85rem; opacity: .85; }
.receta__cuerpo { position: relative; padding: 22px 24px 24px; }
.receta__rx { position: absolute; right: 18px; top: 6px; font: 400 4.5rem/1 Georgia, "Times New Roman", serif; color: var(--lila); }
.receta dl { position: relative; margin: 0 0 20px; }
.receta dt { margin-top: 14px; font: 600 .68rem/1.2 var(--f-titulo); letter-spacing: .12em; text-transform: uppercase; color: var(--gris); }
.receta dd { margin: 6px 0 0; padding-bottom: 6px; font-size: 1.08rem; line-height: 1.75; background: repeating-linear-gradient(transparent 0 calc(1.75em - 1px), var(--linea) calc(1.75em - 1px) 1.75em); }
.receta__pie { margin: 12px 0 0; text-align: center; font-size: .95rem; color: var(--gris); }

/* aerotermia (oscura) */
.seccion--oscura { background: radial-gradient(60% 80% at 10% 100%, #0F4B5E, transparent 60%), var(--noche); color: #DDEBF0; }
.seccion--oscura h2 { color: #fff; }
.aerotermia { display: grid; grid-template-columns: 1fr 1fr; gap: clamp(36px, 6vw, 88px); align-items: center; }
.lista { list-style: none; padding: 0; margin: 26px 0 30px; display: grid; gap: 12px; }
.lista li { position: relative; padding-left: 32px; color: #C3D7DF; }
.lista li::before { content: ""; position: absolute; left: 0; top: .25em; width: 20px; height: 20px; border-radius: 50%; background: rgba(94, 196, 240, .15) url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='10'%3E%3Cpath d='M1 5l3.5 3.5L11 1' fill='none' stroke='%235EC4F0' stroke-width='2'/%3E%3C/svg%3E") no-repeat center; }
.ahorro { display: grid; gap: 18px; }
.ahorro__dato { display: grid; grid-template-columns: auto 1fr; gap: 18px; align-items: center; margin: 0; padding: 22px 26px; border-radius: var(--radio); background: rgba(255, 255, 255, .04); border: 1px solid rgba(255, 255, 255, .08); color: #C3D7DF; }
.ahorro__dato strong { color: #fff; }
.ahorro__cifra { font: 600 clamp(3.2rem, 2.2rem + 3vw, 5rem)/1 var(--f-titulo); letter-spacing: -.05em; color: var(--hielo); }
.ahorro__dato + .ahorro__dato .ahorro__cifra { color: var(--violeta-claro); }
.ahorro__cifra small { font-size: .45em; margin-left: 2px; }
.ahorro__cifra .ahorro__hasta { display: block; margin: 0 0 4px; font-size: .2em; letter-spacing: .14em; text-transform: uppercase; color: #93AEBB; }

/* empresas */
.empresas { display: grid; grid-template-columns: minmax(0, 504px) 1fr; gap: clamp(28px, 5vw, 72px); align-items: center; }
.empresas img { width: 100%; border-radius: var(--radio); }
.empresas p:not(.etiqueta) { margin-top: 14px; color: var(--gris); max-width: 52ch; }

/* marcas y confianza */
.seccion--marcas { background: var(--blanco); text-align: center; padding-block: clamp(56px, 7vw, 88px); }
.marcas__principales { margin: 0; font: 600 clamp(1.25rem, .9rem + 1.8vw, 2.2rem)/1.25 var(--f-titulo); letter-spacing: -.04em; color: var(--tinta); }
.marcas__principales span { color: var(--violeta-claro); margin-inline: .25em; }
.marcas__otras { margin: 10px 0 0; color: var(--gris); }
.confianza { list-style: none; padding: 0; margin: 44px 0 0; display: grid; grid-template-columns: repeat(4, 1fr); text-align: left; }
.confianza li { display: grid; gap: 4px; padding: 6px 22px; border-left: 1px solid var(--linea); }
.confianza li:first-child { border-left: 0; padding-left: 0; }
.confianza strong { font: 600 1.05rem/1.2 var(--f-titulo); letter-spacing: -.03em; color: var(--violeta); }
.confianza span { font-size: .95rem; color: var(--gris); line-height: 1.4; }

/* contacto */
.contacto { background: var(--noche); color: #DDEBF0; padding-block: clamp(64px, 9vw, 104px); }
.contacto h2 { color: #fff; max-width: 18ch; }
.contacto__fila { display: grid; grid-template-columns: 1fr 1fr; gap: clamp(32px, 6vw, 80px); align-items: center; }
.contacto__dir { margin-top: 20px; color: #B9CFD8; }
.contacto__dir a { display: inline-block; margin-top: 6px; color: var(--violeta-claro); font-weight: 700; }
.contacto__redes { display: flex; gap: 18px; }
.contacto__redes a { color: #fff; font-weight: 700; }
.canal { display: grid; gap: 2px; padding: 16px 22px; margin-bottom: 12px; border: 1px solid rgba(255, 255, 255, .14); border-radius: var(--radio); color: #fff; text-decoration: none; transition: border-color .15s, background-color .15s; }
.canal:hover { border-color: var(--violeta-claro); background: rgba(255, 255, 255, .04); }
.canal__tipo { font: 600 .68rem/1.3 var(--f-titulo); letter-spacing: .12em; text-transform: uppercase; color: #93AEBB; }
.canal__dato { font: 600 clamp(1.5rem, 1.1rem + 1.5vw, 2.2rem)/1.15 var(--f-titulo); letter-spacing: -.04em; }
.canal__dato--correo { font-size: clamp(1.05rem, .95rem + .7vw, 1.4rem); overflow-wrap: anywhere; }

.pie { background: #0C0A1A; color: #86A2AF; font-size: .88rem; padding: 22px 0; }
.pie__fila { display: flex; flex-wrap: wrap; align-items: center; gap: 10px 24px; }
.pie p { margin: 0; }
.pie nav { display: flex; gap: 16px; }
.pie a { color: inherit; }
.pie__credito { margin-left: auto !important; }
.barra-movil { display: none; }

/* ── pantallas medianas ─────────────────────────────────────────────── */
@media (max-width: 1020px) {
  .boton--tel span { display: none; }
  .servicios { grid-template-columns: 1fr 1fr; }
  .servicio--grande { grid-row: auto; }
  .confianza { grid-template-columns: 1fr 1fr; row-gap: 22px; }
  .confianza li:nth-child(3) { border-left: 0; padding-left: 0; }
}

@media (max-width: 900px) {
  .menu { display: none; position: absolute; top: 100%; left: 0; right: 0; flex-direction: column; gap: 0; padding: 6px 16px 14px; background: var(--noche); border-bottom: 1px solid rgba(255, 255, 255, .1); }
  .menu.abierto { display: flex; }
  .menu a { padding: 13px 0; border-bottom: 1px solid rgba(255, 255, 255, .08); }
  .menu-boton { display: grid; place-items: center; }
  .cabecera__acciones { margin-left: auto; }
  .portada__fila, .consulta, .aerotermia, .empresas, .contacto__fila { grid-template-columns: 1fr; }
  .receta { position: static; rotate: 0deg; }
}

@media (max-width: 680px) {
  html { scroll-padding-top: 68px; }
  body { padding-bottom: 64px; }
  .cabecera__fila { min-height: 62px; }
  .marca img { width: 140px; }
  .cabecera__acciones .boton { display: none; }
  .portada__botones .boton { width: 100%; justify-content: center; }
  .termostato { padding: 16px; border-radius: 26px; }
  .lcd--grande { height: 92px; }
  .servicios { grid-template-columns: 1fr; }
  .servicio--grande { grid-column: auto; }
  .pestanas { display: grid; width: 100%; }
  .ahorro__dato { grid-template-columns: 1fr; gap: 6px; }
  .confianza { grid-template-columns: 1fr; }
  .confianza li { border-left: 0; padding: 0 0 14px; border-bottom: 1px solid var(--linea); }
  .pie { padding-bottom: 22px; }
  .pie__credito { margin-left: 0 !important; }
  .barra-movil { position: fixed; z-index: 60; left: 0; right: 0; bottom: 0; display: grid; grid-template-columns: 1fr 1fr; padding-bottom: env(safe-area-inset-bottom); background: var(--noche); box-shadow: 0 -6px 18px rgba(0, 0, 0, .25); }
  .barra-movil a { display: flex; align-items: center; justify-content: center; gap: 8px; height: 60px; color: #fff; text-decoration: none; font-weight: 700; }
  .barra-movil a:first-child { background: var(--violeta); }
  .barra-movil a:last-child { background: var(--wa); }
  .barra-movil svg { width: 1.25em; height: 1.25em; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { animation: none !important; transition: none !important; }
}

/* Logo de ejemplo en texto (sustituye al del negocio real) */
.logo-texto { display: inline-flex; flex-direction: column; font: 600 1.35rem/1 var(--f-titulo); letter-spacing: .06em; color: #fff; text-transform: uppercase; }
.logo-texto small { font-size: .56rem; letter-spacing: .42em; margin-top: 5px; color: var(--acento-logo, #2FB7D6); font-weight: 600; }

/* Franja de «diseño de muestra» (demo de Andasolu) */
.demo-banda { background: #111; color: #fff; font: 600 12px/1.3 system-ui, sans-serif; text-align: center; padding: 7px 12px; letter-spacing: .02em; }
.demo-banda a { color: inherit; text-decoration: underline; }