/* ============================================================
   HelloNails — demo de renovación (lote 3, LOT3-09)
   Concepto: "El ritual del color" — marfil/marrón/teal, Montserrat + Open Sans
   Mobile-first · AA contrast verificado · sin frameworks
   ============================================================ */

:root {
  /* 60% base */
  --marfil: #FAF6F1;
  --arena: #EFE6DA;
  /* 30% marrón */
  --marron: #594F3E;
  --marron-2: #4A4132;
  --texto: #3F382E;
  /* 10% acento */
  --teal: #276E77;
  --teal-soft: #7EBEC5;
  --bronze: #AB9677;
  --bronze-claro: #D9C5A6;
  --blanco: #FFFFFF;
  --sombra: 0 10px 30px rgba(63, 56, 46, .12);
  --radio: 14px;
  --ff-display: 'Montserrat', Helvetica, Arial, sans-serif;
  --ff-body: 'Open Sans', Helvetica, Arial, sans-serif;
}

* { box-sizing: border-box; margin: 0; padding: 0; }

html { scroll-behavior: smooth; }
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { animation: none !important; transition: none !important; }
  .reveal { opacity: 1 !important; transform: none !important; }
}

body {
  font-family: var(--ff-body);
  font-size: 1rem;
  line-height: 1.65;
  color: var(--texto);
  background: var(--marfil);
  -webkit-font-smoothing: antialiased;
}
@media (max-width: 767px) {
  body { padding-bottom: 64px; } /* hueco para la barra CTA sticky */
}

img { max-width: 100%; height: auto; display: block; }

/* ---------- utilidades ---------- */
.envoltorio { width: min(1120px, 92vw); margin-inline: auto; }
.eyebrow {
  font-family: var(--ff-display);
  font-size: .78rem;
  font-weight: 700;
  letter-spacing: .18em;
  text-transform: uppercase;
  color: var(--teal);
}
.sobre-oscuro .eyebrow { color: var(--bronze-claro); }
h1, h2, h3 {
  font-family: var(--ff-display);
  color: var(--marron);
  line-height: 1.12;
  letter-spacing: -.01em;
}
h1 { font-size: clamp(2.3rem, 6vw, 4.1rem); font-weight: 800; }
h2 { font-size: clamp(1.7rem, 4vw, 2.6rem); font-weight: 800; }
h3 { font-size: clamp(1.15rem, 2.4vw, 1.45rem); font-weight: 700; }
.sobre-oscuro h1, .sobre-oscuro h2, .sobre-oscuro h3 { color: var(--blanco); }
.lead { font-size: clamp(1.02rem, 1.6vw, 1.15rem); max-width: 56ch; }

/* skip link */
.saltar {
  position: absolute; left: -999px; top: 0; z-index: 100;
  background: var(--blanco); color: var(--marron); padding: .7rem 1.2rem;
  border-radius: 0 0 var(--radio) 0;
}
.saltar:focus { left: 0; }

:focus-visible { outline: 3px solid var(--teal-soft); outline-offset: 2px; border-radius: 4px; }
.sobre-oscuro :focus-visible { outline-color: var(--bronze-claro); }

/* ---------- botones ---------- */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: .55rem;
  min-height: 48px; padding: .8rem 1.6rem;
  font-family: var(--ff-display); font-weight: 700; font-size: .95rem;
  text-decoration: none; border-radius: 999px; border: 2px solid transparent;
  cursor: pointer; transition: transform .18s ease, background .18s ease, color .18s ease;
}
.btn:hover { transform: translateY(-2px); }
.btn--primario { background: var(--teal); color: var(--blanco); }
.btn--primario:hover { background: #1F5B63; }
.btn--claro { background: var(--blanco); color: var(--teal); }
.btn--fantasma { border-color: var(--bronze-claro); color: var(--bronze-claro); }
.btn--fantasma:hover { background: rgba(255, 255, 255, .08); }
.btn--borde { border-color: var(--marron); color: var(--marron); }
.btn--borde:hover { background: var(--marron); color: var(--blanco); }

/* ---------- header ---------- */
.site-header {
  position: sticky; top: 0; z-index: 40;
  background: var(--marron); color: var(--blanco);
  box-shadow: 0 2px 14px rgba(0, 0, 0, .22);
}
.site-header .envoltorio {
  display: flex; align-items: center; justify-content: space-between;
  min-height: 64px; gap: 1rem;
}
.logo-enlace { display: inline-flex; align-items: center; }
.logo-enlace img { height: 30px; width: auto; }
@media (max-width: 360px) { .logo-enlace img { height: 24px; } }

.nav-principal { display: none; }
.nav-principal ul { list-style: none; display: flex; align-items: center; gap: .35rem; }
.nav-principal a {
  display: inline-flex; align-items: center; min-height: 44px; padding: .4rem .9rem;
  color: var(--bronze-claro); text-decoration: none;
  font-family: var(--ff-display); font-weight: 600; font-size: .86rem;
  letter-spacing: .06em; text-transform: uppercase; border-radius: 999px;
}
.nav-principal a:hover { color: var(--blanco); background: rgba(255, 255, 255, .08); }
.nav-principal a[aria-current="page"] { color: var(--blanco); background: rgba(255, 255, 255, .12); }
.nav-tel { border: 2px solid var(--bronze-claro); border-radius: 999px; }

/* hamburguesa */
.btn-menu {
  display: inline-flex; align-items: center; justify-content: center;
  width: 48px; height: 48px; border: 0; border-radius: 10px;
  background: transparent; color: var(--blanco); cursor: pointer;
}
.btn-menu svg { width: 26px; height: 26px; }
.nav-movil {
  display: none; background: var(--marron-2);
  border-top: 1px solid rgba(217, 197, 166, .25);
}
.nav-movil ul { list-style: none; padding: .6rem 4vw 1rem; }
.nav-movil a {
  display: flex; align-items: center; min-height: 48px; padding: .4rem .5rem;
  color: var(--bronze-claro); text-decoration: none;
  font-family: var(--ff-display); font-weight: 600; font-size: .95rem;
  letter-spacing: .06em; text-transform: uppercase;
  border-bottom: 1px solid rgba(217, 197, 166, .15);
}
.nav-movil li:last-child a { border-bottom: 0; color: var(--blanco); }
.nav-abierto .nav-movil { display: block; }

@media (min-width: 860px) {
  .btn-menu { display: none; }
  .nav-movil { display: none !important; }
  .nav-principal { display: block; }
}

/* ---------- bandas ---------- */
.banda { padding: clamp(3.5rem, 8vw, 6rem) 0; }
.banda--marfil { background: var(--marfil); }
.banda--arena { background: var(--arena); }
.banda--marron { background: var(--marron); color: var(--bronze-claro); }
.sobre-oscuro p { color: var(--bronze-claro); }
.banda--marron .lead { color: var(--bronze-claro); }

/* ---------- hero (split texto/foto) ---------- */
.hero { background: var(--marfil); }
.hero-grid { display: grid; grid-template-columns: 1fr; }
.hero-texto {
  padding: clamp(3rem, 7vw, 5.5rem) 0 clamp(2.5rem, 6vw, 4rem);
}
.hero-texto .envoltorio { width: min(1120px, 92vw); }
.hero h1 span { display: block; color: var(--teal); }
.hero-texto p { margin: 1.2rem 0 2rem; max-width: 46ch; }
.hero-acciones { display: flex; flex-wrap: wrap; gap: .8rem; align-items: center; }
.hero-micro { margin-top: 1.1rem; font-size: .92rem; color: var(--bronze); }
.hero-foto { position: relative; min-height: 60vw; overflow: hidden; }
.hero-foto img { width: 100%; height: 100%; object-fit: cover; }
/* parallax suave solo si el navegador soporta scroll-driven animations */
@supports (animation-timeline: view()) {
  .hero-foto img { animation: hero-par linear both; animation-timeline: view(); animation-range: entry 0% exit 100%; }
  @keyframes hero-par { from { transform: scale(1.08); } to { transform: scale(1); } }
}
@media (min-width: 900px) {
  .hero-grid { grid-template-columns: 1.05fr .95fr; min-height: min(92svh, 760px); }
  .hero-texto { display: flex; flex-direction: column; justify-content: center; padding: 5rem 0; }
  .hero-texto .envoltorio { padding-left: 4vw; }
  .hero-foto { min-height: 0; }
}

/* ---------- sellos (banda marrón) ---------- */
.sellos-grid { display: grid; gap: 2rem; margin-top: 2.5rem; }
.sello { display: flex; gap: 1.1rem; align-items: flex-start; }
.sello svg { flex: 0 0 auto; width: 44px; height: 44px; }
.sello h3 { margin-bottom: .3rem; }
.sobre-oscuro .sello p { font-size: .97rem; }
@media (min-width: 860px) { .sellos-grid { grid-template-columns: repeat(3, 1fr); } }

/* ---------- dúos texto/foto (protagonista) ---------- */
.duo { display: grid; grid-template-columns: 1fr; }
.duo-texto { padding: clamp(2.8rem, 6vw, 5rem) 0; }
.duo-texto .envoltorio { width: min(1120px, 92vw); }
.duo-texto p { margin: 1rem 0 1.8rem; max-width: 48ch; }
.duo-foto { position: relative; min-height: 72vw; overflow: hidden; }
.duo-foto img { width: 100%; height: 100%; object-fit: cover; }
.duo-foto .chip {
  position: absolute; left: 1.2rem; bottom: 1.2rem;
  background: rgba(89, 79, 62, .95); color: var(--blanco);
  font-family: var(--ff-display); font-weight: 600; font-size: .82rem;
  letter-spacing: .08em; text-transform: uppercase;
  padding: .5rem 1rem; border-radius: 999px;
}
.precio-grande {
  font-family: var(--ff-display); font-weight: 800; font-size: clamp(2.4rem, 6vw, 3.6rem);
  color: var(--teal); display: inline-flex; align-items: baseline; gap: .15em;
}
.precio-grande small { font-size: .38em; font-weight: 600; letter-spacing: .1em; }
.duo--destacado .duo-texto { background: var(--arena); }
.duo--oscuro { background: var(--marron); }
.duo--oscuro .duo-texto p { color: var(--bronze-claro); }
@media (min-width: 900px) {
  .duo { grid-template-columns: 1fr 1fr; }
  .duo-foto { min-height: min(78vh, 640px); }
  .duo--invertido .duo-texto { order: 1; }
  .duo--invertido .duo-foto { order: 0; }
}

/* lista con guiones de bronce */
.lista-bronce { list-style: none; margin: 1rem 0 0; }
.lista-bronce li { padding-left: 1.4rem; position: relative; margin-bottom: .55rem; }
.lista-bronce li::before {
  content: ""; position: absolute; left: 0; top: .62em;
  width: .62rem; height: .62rem; border-radius: 50%; background: var(--bronze);
}

/* ---------- galería scroll-snap ---------- */
.galeria-cab { display: flex; flex-wrap: wrap; align-items: baseline; justify-content: space-between; gap: 1rem; margin-bottom: 2rem; }
.galeria-cab p { max-width: 44ch; }
.galeria {
  display: grid; grid-auto-flow: column; grid-auto-columns: min(78vw, 340px);
  gap: 1rem; overflow-x: auto; scroll-snap-type: x mandatory;
  padding-bottom: .8rem; scrollbar-width: none;
}
.galeria::-webkit-scrollbar { display: none; }
.galeria figure { scroll-snap-align: start; position: relative; border-radius: var(--radio); overflow: hidden; box-shadow: var(--sombra); }
.galeria img { width: 100%; aspect-ratio: 1 / 1; object-fit: cover; }
.galeria figcaption {
  position: absolute; inset-inline: 0; bottom: 0; padding: 2.4rem 1rem .9rem;
  background: linear-gradient(180deg, rgba(31, 27, 21, 0) 0%, rgba(31, 27, 21, .85) 78%);
  color: var(--blanco); font-size: .9rem; font-weight: 600;
}
@media (min-width: 900px) { .galeria { grid-auto-columns: minmax(300px, 1fr); } }

/* ---------- proceso (servicios) ---------- */
.pasos { counter-reset: paso; display: grid; gap: 1.4rem; margin-top: 2.4rem; }
.paso { background: var(--blanco); border-radius: var(--radio); padding: 1.6rem 1.5rem; box-shadow: var(--sombra); }
.paso::before {
  counter-increment: paso; content: "0" counter(paso);
  font-family: var(--ff-display); font-weight: 800; font-size: 1.9rem; color: var(--bronze);
  display: block; line-height: 1; margin-bottom: .5rem;
}
@media (min-width: 860px) { .pasos { grid-template-columns: repeat(3, 1fr); } }

/* ---------- contacto ---------- */
.contacto-grid { display: grid; gap: clamp(2.5rem, 6vw, 4rem); }
@media (min-width: 900px) { .contacto-grid { grid-template-columns: .9fr 1.1fr; align-items: start; } }
.dato { display: flex; gap: 1rem; align-items: flex-start; margin-top: 1.6rem; }
.dato svg { flex: 0 0 auto; width: 30px; height: 30px; margin-top: .15rem; }
.dato a { color: var(--marron); font-weight: 600; text-decoration: none; }
.dato a:hover { text-decoration: underline; }
.dato .rotulo { display: block; font-size: .8rem; text-transform: uppercase; letter-spacing: .14em; color: var(--bronze); font-weight: 700; margin-bottom: .15rem; }

.tarjeta-form {
  background: var(--blanco); border-radius: var(--radio); box-shadow: var(--sombra);
  padding: clamp(1.6rem, 4vw, 2.4rem);
}
.tarjeta-form h2 { margin-bottom: .4rem; }
.tarjeta-form > p { margin-bottom: 1.6rem; }
.campo { margin-bottom: 1.2rem; }
.campo label { display: block; font-family: var(--ff-display); font-weight: 600; font-size: .9rem; margin-bottom: .35rem; }
.campo input, .campo select, .campo textarea {
  width: 100%; min-height: 48px; padding: .7rem .9rem;
  font: inherit; color: var(--texto);
  border: 1.5px solid #CBBBA4; border-radius: 10px; background: var(--marfil);
}
.campo textarea { min-height: 130px; resize: vertical; }
.campo input:focus, .campo select:focus, .campo textarea:focus { outline: 3px solid var(--teal-soft); outline-offset: 1px; border-color: var(--teal); }
.campo .ayuda { font-size: .82rem; color: #6B6154; margin-top: .3rem; }
.aviso-ok {
  display: none; margin-top: 1.2rem; padding: 1rem 1.2rem;
  background: #E7F1EE; border: 1.5px solid var(--teal); border-radius: 10px; color: #1F5B63; font-weight: 600;
}
.aviso-ok.visible { display: block; }

/* ---------- CTA final + footer (mismo marrón: cero huecos) ---------- */
.cta-final { background: var(--marron); color: var(--bronze-claro); text-align: center; padding: clamp(3.5rem, 8vw, 5.5rem) 0 clamp(2.5rem, 6vw, 4rem); }
.cta-final h2 { margin-bottom: .6rem; }
.cta-final p { max-width: 52ch; margin: 0 auto 2rem; }
.cta-final .hero-acciones { justify-content: center; }

.site-footer { background: var(--marron); border-top: 1px solid rgba(217, 197, 166, .28); color: var(--bronze-claro); padding: 3rem 0 2rem; }
.footer-grid { display: grid; gap: 2.2rem; }
.footer-marca img { height: 44px; width: auto; margin-bottom: 1rem; }
.site-footer h3 { font-size: .85rem; letter-spacing: .16em; text-transform: uppercase; color: var(--blanco); margin-bottom: .9rem; }
.site-footer ul { list-style: none; }
.site-footer li { margin-bottom: .45rem; }
.site-footer a { color: var(--bronze-claro); text-decoration: none; }
.site-footer a:hover { color: var(--blanco); text-decoration: underline; }
.credito-foto { margin-top: 2.4rem; padding-top: 1.2rem; border-top: 1px solid rgba(217, 197, 166, .18); font-size: .8rem; color: #B9A98F; }
@media (min-width: 860px) {
  .footer-grid { grid-template-columns: 1.2fr 1fr 1.2fr; }
}

/* ---------- CTA sticky móvil ---------- */
.cta-sticky {
  display: none;
}
@media (max-width: 767px) {
  .cta-sticky {
    display: flex; position: fixed; inset-inline: 0; bottom: 0; z-index: 60;
    background: var(--marron-2); box-shadow: 0 -4px 18px rgba(0, 0, 0, .25);
  }
  .cta-sticky a {
    flex: 1; display: flex; align-items: center; justify-content: center; gap: .5rem;
    min-height: 64px; color: var(--blanco); text-decoration: none;
    font-family: var(--ff-display); font-weight: 700; font-size: .95rem;
  }
  .cta-sticky a + a { border-left: 1px solid rgba(217, 197, 166, .3); }
  .cta-sticky a svg { width: 20px; height: 20px; }
}

/* ---------- reveals ---------- */
.reveal { opacity: 0; transform: translateY(24px); transition: opacity .7s ease, transform .7s ease; }
.reveal.visible { opacity: 1; transform: none; }
@media (prefers-reduced-motion: reduce) {
  .reveal { opacity: 1; transform: none; }
}