/* ============================================================
   MARIANA NATERA ESTUDIO — Sistema de diseño
   Quiet luxury · cálido · residencial · textil
   Paleta de marca: arena · blanco cálido · rosa arcilla ·
   verde olivo · café profundo · negro mate
   ============================================================ */

:root {
  /* Paleta de marca */
  --arena:        #C9B79C;
  --arena-claro:  #DBCDB6;
  --blanco-calido:#F6F1E9;
  --papel:        #FBF8F2;
  --rosa-arcilla: #B98A72;
  --rosa-suave:   #D8B7A4;
  --verde-olivo:  #6A6A4B;
  --olivo-oscuro: #4E4E38;
  --cafe:         #3A2C23;
  --negro-mate:   #1C1815;

  /* Roles semánticos */
  --bg:           var(--papel);
  --bg-alt:       var(--blanco-calido);
  --bg-oscuro:    var(--negro-mate);
  --texto:        #2A231E;
  --texto-suave:  #6E6459;
  --linea:        #E4DACB;
  --acento:       var(--rosa-arcilla);
  --acento-2:     var(--verde-olivo);

  /* Tipografía */
  --serif: "Cormorant Garamond", "Cormorant", Georgia, "Times New Roman", serif;
  --sans:  "Jost", "Century Gothic", "Helvetica Neue", Arial, sans-serif;

  /* Escala y ritmo */
  --maxw: 1240px;
  --gutter: clamp(1.25rem, 5vw, 5rem);
  --seccion-y: clamp(4.5rem, 11vw, 9rem);

  --transicion: 0.5s cubic-bezier(0.22, 1, 0.36, 1);
}

/* ---------- Reset ligero ---------- */
*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; overflow-x: hidden; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--texto);
  font-family: var(--sans);
  font-weight: 300;
  font-size: clamp(1rem, 0.55vw + 0.9rem, 1.075rem);
  line-height: 1.75;
  letter-spacing: 0.01em;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}
img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
button { font-family: inherit; cursor: pointer; }

/* ---------- Tipografía ---------- */
h1, h2, h3, .serif {
  font-family: var(--serif);
  font-weight: 400;
  line-height: 1.08;
  letter-spacing: 0.005em;
  color: var(--cafe);
}
h1 { font-size: clamp(2.8rem, 7vw, 5.6rem); }
h2 { font-size: clamp(2rem, 4.5vw, 3.4rem); }
h3 { font-size: clamp(1.4rem, 2.2vw, 1.9rem); }

.eyebrow {
  font-family: var(--sans);
  font-weight: 400;
  font-size: 0.72rem;
  letter-spacing: 0.42em;
  text-transform: uppercase;
  color: var(--acento);
  margin: 0 0 1.4rem;
  display: inline-block;
}
.lead { font-size: clamp(1.1rem, 1.4vw, 1.35rem); color: var(--texto-suave); font-weight: 300; }

/* ---------- Layout ---------- */
.wrap { max-width: var(--maxw); margin-inline: auto; padding-inline: var(--gutter); }
.seccion { padding-block: var(--seccion-y); }
.seccion--alt { background: var(--bg-alt); }
.seccion--oscura { background: var(--bg-oscuro); color: #E9E1D5; }
.seccion--oscura h1, .seccion--oscura h2, .seccion--oscura h3 { color: var(--papel); }
.centrado { text-align: center; }
.medida { max-width: 62ch; }
.medida.centrado { margin-inline: auto; }

/* ---------- Botones ---------- */
.btn {
  display: inline-flex; align-items: center; gap: 0.65rem;
  font-family: var(--sans); font-weight: 400;
  font-size: 0.78rem; letter-spacing: 0.24em; text-transform: uppercase;
  padding: 1.05rem 2.2rem;
  border: 1px solid var(--cafe); background: var(--cafe); color: var(--papel);
  transition: background var(--transicion), color var(--transicion), border-color var(--transicion);
}
.btn:hover { background: transparent; color: var(--cafe); }
.btn--claro { background: transparent; color: var(--cafe); }
.btn--claro:hover { background: var(--cafe); color: var(--papel); }
.btn--sobre-oscuro { border-color: var(--arena); background: transparent; color: var(--papel); }
.btn--sobre-oscuro:hover { background: var(--arena); color: var(--negro-mate); }

/* ---------- Header / nav ---------- */
.site-header {
  position: fixed; inset: 0 0 auto 0; z-index: 100;
  display: flex; align-items: center; justify-content: space-between;
  padding: 1.4rem var(--gutter);
  transition: background var(--transicion), padding var(--transicion), box-shadow var(--transicion);
}
.site-header.scrolled {
  background: rgba(251, 248, 242, 0.9);
  backdrop-filter: blur(10px);
  padding-block: 0.85rem;
  box-shadow: 0 1px 0 var(--linea);
}
/* Al tope, sobre el hero oscuro: texto claro */
.site-header:not(.scrolled) .marca { color: var(--papel); }
.site-header:not(.scrolled) .marca small { color: var(--arena-claro); }
.site-header:not(.scrolled) .nav > a { color: rgba(246,241,233,0.92); }
.site-header:not(.scrolled) .menu-btn span { background: var(--papel); }
.site-header:not(.scrolled) .lang { border-color: rgba(246,241,233,0.32); }
.site-header:not(.scrolled) .lang button { color: rgba(246,241,233,0.75); }
.site-header:not(.scrolled) .lang button.activo { background: var(--papel); color: var(--negro-mate); }
.marca {
  font-family: var(--serif); font-size: 1.35rem; letter-spacing: 0.06em; color: var(--cafe);
  line-height: 1;
}
.marca small { display: block; font-family: var(--sans); font-size: 0.56rem; letter-spacing: 0.42em; text-transform: uppercase; color: var(--acento); margin-top: 0.35rem; font-weight: 400; }

.nav { display: flex; align-items: center; gap: clamp(1rem, 2.2vw, 2.4rem); }
.nav a {
  font-size: 0.74rem; letter-spacing: 0.16em; text-transform: uppercase; color: var(--texto);
  position: relative; padding-block: 0.3rem;
}
.nav a::after { content: ""; position: absolute; left: 0; bottom: 0; width: 0; height: 1px; background: var(--acento); transition: width var(--transicion); }
.nav a:hover::after { width: 100%; }

/* Toggle idioma */
.lang {
  display: inline-flex; border: 1px solid var(--linea); border-radius: 999px; overflow: hidden;
  font-size: 0.66rem; letter-spacing: 0.12em;
}
.lang button { background: transparent; border: 0; padding: 0.4rem 0.7rem; color: var(--texto-suave); text-transform: uppercase; letter-spacing: 0.12em; }
.lang button.activo { background: var(--cafe); color: var(--papel); }

/* Menú móvil */
.menu-btn { display: none; background: transparent; border: 0; width: 28px; height: 20px; position: relative; }
.menu-btn span { position: absolute; left: 0; width: 100%; height: 1.5px; background: var(--cafe); transition: var(--transicion); }
.menu-btn span:nth-child(1) { top: 0; }
.menu-btn span:nth-child(2) { top: 9px; }
.menu-btn span:nth-child(3) { top: 18px; }

/* ---------- Hero ---------- */
.hero {
  min-height: 100svh; display: flex; align-items: center; position: relative;
  background: linear-gradient(115deg, #17130f 0%, #241d17 55%, #33281f 100%);
  color: var(--papel);
  overflow: hidden;
}
.hero__photo {
  position: absolute; top: 0; right: 0; bottom: 0; width: 54%;
  background: url("../assets/mariana-retrato.jpg") 50% 12% / cover no-repeat;
}
/* Funde el borde izquierdo de la foto con el panel oscuro para legibilidad del texto */
.hero__photo::before {
  content: ""; position: absolute; inset: 0;
  background: linear-gradient(90deg, #17130f 0%, rgba(23,19,15,0.55) 26%, rgba(23,19,15,0.12) 55%, rgba(23,19,15,0.10) 100%);
}
@media (max-width: 860px) {
  .hero { align-items: flex-end; }
  .hero__inner { max-width: 100%; }
  .hero__scroll { display: none; }
  .hero__photo {
    width: 100%; background-position: 58% 10%;
  }
  .hero__photo::before {
    background: linear-gradient(180deg, rgba(23,19,15,0.45) 0%, rgba(23,19,15,0.55) 45%, rgba(23,19,15,0.88) 100%);
  }
}
.hero__inner { position: relative; z-index: 2; max-width: 60ch; padding-top: 5rem; padding-bottom: 2.5rem; }
.hero h1 { color: var(--papel); margin: 0.3rem 0 1.6rem; }
.hero .eyebrow { color: var(--arena-claro); }
.hero .lead { color: rgba(246,241,233,0.9); }
.hero__cta { margin-top: 2.6rem; display: flex; gap: 1rem; flex-wrap: wrap; }
.hero__scroll { position: absolute; right: 2.4rem; bottom: 2rem; z-index: 3; color: rgba(246,241,233,0.75); font-size: 0.62rem; letter-spacing: 0.3em; text-transform: uppercase; display: flex; flex-direction: column; align-items: center; gap: 0.6rem; }
.hero__scroll::after { content: ""; width: 1px; height: 46px; background: linear-gradient(rgba(246,241,233,0.8), transparent); }

/* Nota de placeholder de imagen */
.ph-nota {
  position: absolute; z-index: 3; right: 1rem; bottom: 1rem;
  font-size: 0.6rem; letter-spacing: 0.1em; text-transform: uppercase;
  background: rgba(28,24,21,0.55); color: rgba(246,241,233,0.85);
  padding: 0.35rem 0.6rem; border-radius: 3px;
}

/* ---------- Filosofía / intro ---------- */
.split { display: grid; grid-template-columns: 1fr 1fr; gap: clamp(2rem, 6vw, 6rem); align-items: center; }
.split--imagen-der .split__media { order: 2; }
.split__media {
  aspect-ratio: 4 / 5; border-radius: 2px; position: relative; overflow: hidden;
  background: linear-gradient(140deg, var(--arena) 0%, var(--rosa-suave) 60%, var(--olivo-oscuro) 100%);
  box-shadow: 0 30px 60px -30px rgba(58,44,35,0.4);
}
.split__media .ph-label {
  position: absolute; inset: 0; display: flex; align-items: center; justify-content: center;
  color: rgba(255,255,255,0.75); font-size: 0.68rem; letter-spacing: 0.2em; text-transform: uppercase; text-align: center; padding: 2rem;
}

/* ---------- Valores / palabras clave ---------- */
.chips { display: flex; flex-wrap: wrap; gap: 0.7rem; margin-top: 2rem; }
.chip { border: 1px solid var(--linea); padding: 0.5rem 1.1rem; border-radius: 999px; font-size: 0.74rem; letter-spacing: 0.14em; text-transform: uppercase; color: var(--texto-suave); }

/* ---------- Servicios ---------- */
.grid-servicios { display: grid; grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); gap: 1px; background: var(--linea); border: 1px solid var(--linea); margin-top: 3.5rem; }
.servicio { background: var(--bg); padding: clamp(2rem, 3.5vw, 3.2rem); transition: background var(--transicion); }
.servicio:hover { background: var(--bg-alt); }
.servicio__num { font-family: var(--serif); font-size: 1rem; color: var(--acento); letter-spacing: 0.1em; }
.servicio h3 { margin: 0.8rem 0 0.9rem; }
.servicio p { margin: 0; color: var(--texto-suave); font-size: 0.98rem; }
.servicio ul { margin: 1rem 0 0; padding: 0; list-style: none; }
.servicio li { font-size: 0.9rem; color: var(--texto-suave); padding-left: 1.1rem; position: relative; margin-bottom: 0.35rem; }
.servicio li::before { content: "—"; position: absolute; left: 0; color: var(--acento); }

/* ---------- Estética / galería de estilos ---------- */
.galeria { display: grid; grid-template-columns: repeat(12, 1fr); gap: 0.9rem; margin-top: 3.5rem; }
.tile { position: relative; overflow: hidden; border-radius: 2px; min-height: 200px; background-size: cover; background-position: center; }
.tile .ph-label { position: absolute; inset: auto 0 0 0; padding: 1rem; background: linear-gradient(transparent, rgba(28,24,21,0.6)); color: var(--papel); font-size: 0.72rem; letter-spacing: 0.12em; text-transform: uppercase; }
.tile--a { grid-column: span 7; min-height: 340px; background: linear-gradient(135deg, var(--arena), var(--rosa-suave)); }
.tile--b { grid-column: span 5; min-height: 340px; background: linear-gradient(135deg, var(--olivo-oscuro), var(--verde-olivo)); }
.tile--c { grid-column: span 4; background: linear-gradient(135deg, var(--rosa-arcilla), var(--cafe)); }
.tile--d { grid-column: span 4; background: linear-gradient(135deg, var(--arena-claro), var(--arena)); }
.tile--e { grid-column: span 4; background: linear-gradient(135deg, var(--verde-olivo), var(--olivo-oscuro)); }

.nota-honesta { margin-top: 2rem; font-size: 0.82rem; color: var(--texto-suave); font-style: italic; }

/* ---------- Confidencialidad ---------- */
.conf-grid { display: grid; grid-template-columns: 1.05fr 0.95fr; gap: clamp(2rem, 5vw, 4.5rem); margin-top: 3rem; align-items: start; }
.conf-puntos { list-style: none; padding: 0; margin: 2rem 0 0; }
.conf-puntos li { padding: 1.2rem 0; border-top: 1px solid rgba(246,241,233,0.16); display: flex; gap: 1rem; }
.conf-puntos li:last-child { border-bottom: 1px solid rgba(246,241,233,0.16); }
.conf-puntos .n { font-family: var(--serif); color: var(--arena); font-size: 1.1rem; }

/* ---------- Formularios ---------- */
.form { display: grid; gap: 1.2rem; }
.form-row { display: grid; gap: 1.2rem; grid-template-columns: 1fr 1fr; }
.campo { display: grid; gap: 0.5rem; }
.campo label { font-size: 0.72rem; letter-spacing: 0.16em; text-transform: uppercase; color: var(--texto-suave); }
.campo input, .campo select, .campo textarea {
  font-family: var(--sans); font-size: 0.98rem; font-weight: 300; color: var(--texto);
  background: transparent; border: 0; border-bottom: 1px solid var(--linea);
  padding: 0.7rem 0.1rem; transition: border-color var(--transicion);
}
.campo input:focus, .campo select:focus, .campo textarea:focus { outline: 0; border-color: var(--acento); }
.seccion--oscura .campo label { color: rgba(233,225,213,0.7); }
.seccion--oscura .campo input, .seccion--oscura .campo select, .seccion--oscura .campo textarea { color: var(--papel); border-color: rgba(246,241,233,0.24); }
/* Opciones nativas: siempre texto oscuro sobre claro (evita blanco-sobre-blanco en el popup) */
.campo select option { color: #2A231E; background: #FBF8F2; }
.check { display: flex; gap: 0.75rem; align-items: flex-start; font-size: 0.86rem; color: var(--texto-suave); }
.check input { margin-top: 0.25rem; accent-color: var(--acento); }
.form-nota { font-size: 0.78rem; color: var(--texto-suave); }

/* ---------- Tarjeta digital ---------- */
.tarjeta-body { background: var(--negro-mate); min-height: 100svh; display: flex; align-items: center; justify-content: center; padding: 2rem 1.25rem; }
.vcard {
  width: 100%; max-width: 420px; background: linear-gradient(165deg, #241f1b, #14110f);
  border: 1px solid rgba(201,183,156,0.28); border-radius: 18px; overflow: hidden;
  box-shadow: 0 40px 90px -40px rgba(0,0,0,0.8); color: #EBE3D6;
}
.vcard__top { padding: 2.6rem 2.2rem 2rem; text-align: center; background: linear-gradient(160deg, rgba(185,138,114,0.22), transparent); }
.vcard__mono { width: 92px; height: 92px; margin: 0 auto 1.4rem; border-radius: 50%; border: 1px solid rgba(201,183,156,0.5); display: flex; align-items: center; justify-content: center; font-family: var(--serif); font-size: 2.1rem; color: var(--arena); letter-spacing: 0.05em; }
.vcard__top h1 { color: var(--papel); font-size: 2.1rem; margin: 0; }
.vcard__rol { font-size: 0.68rem; letter-spacing: 0.34em; text-transform: uppercase; color: var(--arena); margin-top: 0.7rem; }
.vcard__body { padding: 1.6rem 2.2rem 2.4rem; }
.vcard__row { display: flex; gap: 1rem; align-items: center; padding: 0.9rem 0; border-bottom: 1px solid rgba(246,241,233,0.1); font-size: 0.92rem; }
.vcard__row:last-of-type { border-bottom: 0; }
.vcard__row .ic { width: 34px; height: 34px; flex: none; border-radius: 50%; border: 1px solid rgba(201,183,156,0.4); display: flex; align-items: center; justify-content: center; color: var(--arena); font-size: 0.9rem; }
.vcard__qr { margin: 1.8rem auto 0; width: 168px; height: 168px; background: var(--papel); border-radius: 12px; padding: 12px; }
.vcard__qr img, .vcard__qr svg { width: 100%; height: 100%; }
.vcard__cta { display: grid; gap: 0.7rem; margin-top: 1.8rem; }
.vcard__cta .btn { justify-content: center; width: 100%; }
.vcard__nota { text-align: center; font-size: 0.68rem; color: rgba(235,227,214,0.5); letter-spacing: 0.1em; margin-top: 1.6rem; }

/* ---------- Footer ---------- */
.site-footer { background: var(--negro-mate); color: rgba(233,225,213,0.75); padding-block: clamp(3rem, 6vw, 5rem); }
.footer-grid { display: grid; grid-template-columns: 1.4fr 1fr 1fr; gap: 2.5rem; }
.site-footer h4 { font-family: var(--sans); font-size: 0.72rem; letter-spacing: 0.24em; text-transform: uppercase; color: var(--arena); margin: 0 0 1.2rem; font-weight: 400; }
.site-footer a { color: rgba(233,225,213,0.75); display: block; padding: 0.25rem 0; font-size: 0.9rem; }
.site-footer a:hover { color: var(--papel); }
.footer-bottom { margin-top: 3rem; padding-top: 1.8rem; border-top: 1px solid rgba(246,241,233,0.12); display: flex; justify-content: space-between; gap: 1rem; flex-wrap: wrap; font-size: 0.76rem; color: rgba(233,225,213,0.5); }

/* ---------- Reveal on scroll (mejora progresiva: visible sin JS) ---------- */
.js .reveal { opacity: 0; transform: translateY(28px); transition: opacity 0.9s ease, transform 0.9s cubic-bezier(0.22,1,0.36,1); }
.js .reveal.visible { opacity: 1; transform: none; }

/* ---------- i18n: mostrar según idioma ---------- */
[data-lang-es], [data-lang-en] { }
html[lang="en"] [data-lang-es] { display: none; }
html[lang="es"] [data-lang-en] { display: none; }

/* ---------- Responsive ---------- */
@media (max-width: 860px) {
  .split, .conf-grid { grid-template-columns: 1fr; }
  .split--imagen-der .split__media { order: 0; }
  .form-row { grid-template-columns: 1fr; }
  .galeria { grid-template-columns: repeat(6, 1fr); }
  .tile--a, .tile--b { grid-column: span 6; }
  .tile--c, .tile--d, .tile--e { grid-column: span 3; }
  .footer-grid { grid-template-columns: 1fr; gap: 1.8rem; }
  .nav { position: fixed; inset: 0 0 0 auto; width: min(80vw, 320px); background: var(--papel); flex-direction: column; align-items: flex-start; justify-content: center; gap: 1.6rem; padding: 3rem; transform: translateX(100%); transition: transform var(--transicion); box-shadow: -20px 0 60px -30px rgba(0,0,0,0.4); }
  .nav.abierto { transform: none; }
  .nav a { font-size: 1rem; }
  /* En móvil el menú es un panel claro: enlaces oscuros aunque el header no esté "scrolled" */
  .site-header .nav > a, .site-header:not(.scrolled) .nav > a { color: var(--texto); }
  .menu-btn { display: block; z-index: 120; }
}
@media (max-width: 520px) {
  .galeria { grid-template-columns: 1fr 1fr; }
  .tile--a, .tile--b, .tile--c, .tile--d, .tile--e { grid-column: span 1; min-height: 180px; }
  .hero__cta .btn { width: 100%; justify-content: center; }
}

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