/* Latido · clínica veterinaria (demo) — sistema de diseño propio.
   Deliberadamente distinto de los defaults típicos de IA: ni crema+serif+
   terracota, ni negro+neón, ni hairlines de periódico. Base teal-tinta +
   acento coral (el "latido"), Fraunces + Work Sans + IBM Plex Mono. */

:root {
    --tinta:  #12211f;   /* base oscura, teal-tinta (no negro puro) */
    --bata:   #3e7268;   /* teal de bata clínica — color primario */
    --lienzo: #ede8dc;   /* neutro cálido de fondo (papel de camilla) */
    --latido: #e15c43;   /* coral — CTA y el trazo de pulso */
    --hueso:  #f8f5ee;   /* casi-blanco, texto sobre --tinta */
    --musgo:  #7c8b6f;   /* acento secundario, uso comedido */

    --display: 'Fraunces', Georgia, serif;
    --texto:   'Work Sans', system-ui, sans-serif;
    --datos:   'IBM Plex Mono', ui-monospace, monospace;

    --ease-out: cubic-bezier(.23, 1, .32, 1);
    --ease-in-out: cubic-bezier(.77, 0, .175, 1);

    color-scheme: light;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
    margin: 0;
    font-family: var(--texto);
    color: var(--tinta);
    background: var(--lienzo);
    line-height: 1.55;
    -webkit-font-smoothing: antialiased;
}
h1, h2, h3 { font-family: var(--display); font-weight: 600; line-height: 1.08; margin: 0; }
p { margin: 0; }
a { color: inherit; }
img, svg { display: block; max-width: 100%; }

.saltar {
    position: absolute; left: -999px; top: 0; z-index: 200;
    background: var(--tinta); color: var(--hueso); padding: .8rem 1.2rem; border-radius: 0 0 10px 0;
}
.saltar:focus { left: 0; }

:focus-visible { outline: 3px solid var(--latido); outline-offset: 2px; }

.eyebrow {
    font-family: var(--datos); font-size: .72rem; letter-spacing: .14em; text-transform: uppercase;
    color: var(--bata); margin-bottom: .6rem;
}
.eyebrow--claro { color: var(--musgo); }

/* ===================== Cabecera ===================== */
.barra {
    position: sticky; top: 0; z-index: 40;
    display: flex; align-items: center; justify-content: space-between;
    padding: 1.2rem 2.4rem;
    background: rgba(237, 232, 220, .86); backdrop-filter: blur(8px);
    border-bottom: 1px solid rgba(18, 33, 31, .08);
}
.marca {
    font-family: var(--display); font-weight: 600; font-size: 1.35rem; text-decoration: none;
    display: inline-flex; align-items: center; gap: .35rem; color: var(--tinta);
}
.marca i { font-style: normal; color: var(--latido); font-size: 1rem; }
.barra nav { display: flex; gap: 2rem; }
.barra nav a { text-decoration: none; font-size: .92rem; color: var(--tinta); opacity: .82; }
.barra nav a:hover { opacity: 1; }
.barra__cta {
    font-size: .86rem; font-weight: 600; text-decoration: none; color: var(--hueso);
    background: var(--bata); padding: .65rem 1.15rem; border-radius: 100px;
    transition: transform 160ms var(--ease-out), background 160ms ease;
}
.barra__cta:hover { background: var(--tinta); }
.barra__cta:active { transform: scale(.97); }

/* ===================== Hero + pulso EKG ===================== */
.hero {
    position: relative; min-height: 88vh; display: flex; align-items: center;
    background: var(--tinta); color: var(--hueso); overflow: hidden; padding: 0 2.4rem;
}
.pulso {
    width: 100%; height: 7rem; max-height: 100%; overflow: hidden;
}
.pulso path {
    stroke: var(--latido); stroke-width: 2.5;
}
.hero__pulso {
    position: absolute; left: 0; right: 0; top: 50%; transform: translateY(-50%);
    height: 9rem; opacity: .9;
}
.hero__pulso path { stroke-width: 2.25; }

.hero__contenido { position: relative; z-index: 2; max-width: 46rem; margin: 0 auto; text-align: center; }
.hero .eyebrow { color: var(--latido); }
.hero h1 { font-size: clamp(2.6rem, 6vw, 4.6rem); }
.hero h1 em { font-style: italic; color: var(--latido); }
.hero__texto { margin: 1.3rem auto 0; max-width: 34rem; font-size: 1.1rem; color: rgba(248, 245, 238, .82); }
.hero__acciones { display: flex; gap: .9rem; justify-content: center; margin-top: 2rem; flex-wrap: wrap; }

.boton {
    display: inline-flex; align-items: center; gap: .5rem; text-decoration: none;
    padding: .95rem 1.7rem; border-radius: 100px; font-weight: 600; font-size: .96rem;
    transition: transform 160ms var(--ease-out), background 160ms ease, box-shadow 160ms ease;
}
.boton:active { transform: scale(.97); }
.boton--latido { background: var(--latido); color: var(--hueso); box-shadow: 0 10px 26px rgba(225, 92, 67, .3); }
.boton--latido:hover { box-shadow: 0 14px 32px rgba(225, 92, 67, .42); }
.boton--fantasma { background: transparent; color: var(--hueso); border: 1.5px solid rgba(248, 245, 238, .4); }
.boton--fantasma:hover { border-color: var(--hueso); }
.boton--grande { padding: 1.15rem 2.1rem; font-size: 1.02rem; }

/* ===================== Divisor de pulso entre secciones ===================== */
.divisor { height: 3.6rem; margin: 0 auto; max-width: 68rem; padding: 0 2.4rem; }
.divisor path { stroke: var(--bata); stroke-width: 2; opacity: .55; }

/* ===================== Secciones genéricas ===================== */
.presentacion, .seccion, .visita, .reservar { max-width: 68rem; margin: 0 auto; padding: 5rem 2.4rem; }
.presentacion { text-align: center; }
.presentacion h2 { font-size: clamp(1.8rem, 3.6vw, 2.6rem); margin: 0 auto .9rem; }
.presentacion p { max-width: 40rem; margin: 0 auto; color: rgba(18, 33, 31, .74); font-size: 1.05rem; }

.seccion__cabecera { text-align: center; margin-bottom: 3rem; }
.seccion__cabecera h2 { font-size: clamp(1.8rem, 3.6vw, 2.6rem); }

.servicios { display: grid; grid-template-columns: repeat(4, 1fr); gap: 1.5rem; }
.servicio {
    background: #fff; border: 1px solid rgba(18, 33, 31, .08); border-radius: 18px;
    padding: 1.8rem 1.5rem; text-align: left;
    transition: transform 200ms var(--ease-out), box-shadow 200ms var(--ease-out);
}
.servicio:hover { transform: translateY(-4px); box-shadow: 0 16px 34px rgba(18, 33, 31, .1); }
.servicio__icono {
    display: inline-flex; align-items: center; justify-content: center;
    width: 3rem; height: 3rem; border-radius: 12px; margin-bottom: 1.1rem;
    background: rgba(62, 114, 104, .12); color: var(--bata);
}
.servicio h3 { font-size: 1.15rem; margin-bottom: .5rem; }
.servicio p { color: rgba(18, 33, 31, .68); font-size: .94rem; }

/* ===================== Confianza (monitor de vitales) ===================== */
.confianza {
    background: var(--tinta); color: var(--hueso);
    display: grid; grid-template-columns: 1.1fr 1.4fr; gap: 3rem; align-items: center;
    max-width: 100%; padding: 5rem 2.4rem;
}
.confianza__texto { max-width: 30rem; }
.confianza h2 { font-size: clamp(1.8rem, 3.4vw, 2.4rem); }
.confianza__texto p { margin-top: 1rem; color: rgba(248, 245, 238, .78); }
.vitales { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1.2rem; }
.vital {
    border: 1px solid rgba(248, 245, 238, .16); border-radius: 14px; padding: 1.4rem 1rem; text-align: center;
    background: rgba(248, 245, 238, .04);
}
.vital b { display: block; font-family: var(--datos); font-size: 1.9rem; color: var(--latido); }
.vital span { display: block; margin-top: .4rem; font-size: .82rem; color: rgba(248, 245, 238, .72); }

/* ===================== Visítanos ===================== */
.visita { display: grid; grid-template-columns: 1fr 1fr; gap: 3rem; align-items: center; }
.visita__mapa {
    height: 18rem; border-radius: 18px; background: linear-gradient(135deg, rgba(62,114,104,.16), rgba(225,92,67,.12));
    border: 1px dashed rgba(18, 33, 31, .22);
    display: flex; flex-direction: column; align-items: center; justify-content: center; gap: .6rem;
    position: relative;
}
.visita__mapa span { font-family: var(--display); font-size: 1.6rem; color: var(--bata); }
.visita__mapa i { width: 10px; height: 10px; border-radius: 50%; background: var(--latido); }
.visita__mapa small { color: rgba(18, 33, 31, .5); font-size: .74rem; text-align: center; }
.visita__texto h2 { font-size: clamp(1.7rem, 3.2vw, 2.3rem); margin-bottom: .8rem; }
.visita__texto p { color: rgba(18, 33, 31, .74); }
.enlace { display: inline-block; margin-top: 1rem; font-weight: 600; color: var(--bata); text-decoration: underline; }

/* ===================== Reservar (CTA final) ===================== */
.reservar { text-align: center; }
.reservar h2 { font-size: clamp(1.9rem, 4vw, 2.8rem); margin: .3rem 0 1rem; }
.reservar p { max-width: 34rem; margin: 0 auto 2rem; color: rgba(18, 33, 31, .72); }

/* ===================== Footer ===================== */
footer {
    display: flex; align-items: center; justify-content: space-between; flex-wrap: wrap; gap: 1rem;
    padding: 2.4rem; border-top: 1px solid rgba(18, 33, 31, .1); font-size: .86rem; color: rgba(18, 33, 31, .6);
}
footer a { text-decoration: none; }
footer .marca { color: var(--tinta); }

/* ===================== Animaciones de entrada (mismo patrón que anim-v1) ===================== */
.js .hero-entrada, .js .revelar, .js .servicios > *, .js .vitales > * {
    opacity: 0; transform: translateY(1.4rem);
    transition: opacity .65s ease, transform .65s var(--ease-out);
    transition-delay: var(--rvl-d, 0ms);
}
.js .en { opacity: 1 !important; transform: none !important; }
.js.anim-fallback .hero-entrada, .js.anim-fallback .revelar,
.js.anim-fallback .servicios > *, .js.anim-fallback .vitales > * { opacity: 1; transform: none; }

/* Trazo del pulso: se dibuja vía JS (stroke-dasharray/offset); sin JS o con
   reduced-motion, el fallback de abajo lo deja visible y quieto. */
.js .pulso path { stroke-dasharray: 1; stroke-dashoffset: 1; }
.js.anim-fallback .pulso path { stroke-dasharray: none; stroke-dashoffset: 0; }

/* Pulso ambiental junto al FAB de WhatsApp: ritmo real (lub-dub, pausa),
   no un fundido genérico. Solo transform — sin costo de layout. */
.js .fab--wsp::before {
    content: ''; position: absolute; inset: -6px; border-radius: 50%;
    border: 2px solid var(--latido); opacity: 0;
    animation: latido 2.6s var(--ease-in-out) infinite;
}
@keyframes latido {
    0%   { transform: scale(1);    opacity: .55; }
    8%   { transform: scale(1.16); opacity: 0; }
    16%  { transform: scale(1);    opacity: .55; }
    24%  { transform: scale(1.12); opacity: 0; }
    100% { transform: scale(1);    opacity: 0; }
}

@media (max-width: 900px) {
    .barra { padding: 1rem 1.3rem; }
    .barra nav { display: none; }
    .servicios { grid-template-columns: repeat(2, 1fr); }
    .confianza, .visita { grid-template-columns: 1fr; }
    .presentacion, .seccion, .visita, .reservar, .confianza { padding: 3.5rem 1.3rem; }
    .vitales { grid-template-columns: 1fr; }
}

@media (prefers-reduced-motion: reduce) {
    html { scroll-behavior: auto; }
    .js .fab--wsp::before { animation: none; opacity: 0; }
    * , *::before, *::after { transition-duration: .01ms !important; animation-duration: .01ms !important; animation-iteration-count: 1 !important; }
}