/* =========================================================
   YAM PILATES STUDIO — hoja de estilos
   Sistema de diseño: neutros cálidos + serif/script/sans
   ========================================================= */

/* ---------- Fuente Libertinus Serif (self-host vía Fontsource CDN) ---------- */
@font-face {
  font-family: 'Libertinus Serif';
  font-style: normal; font-weight: 400; font-display: swap;
  src: url('https://cdn.jsdelivr.net/fontsource/fonts/libertinus-serif@latest/latin-400-normal.woff2') format('woff2');
}
@font-face {
  font-family: 'Libertinus Serif';
  font-style: normal; font-weight: 600; font-display: swap;
  src: url('https://cdn.jsdelivr.net/fontsource/fonts/libertinus-serif@latest/latin-600-normal.woff2') format('woff2');
}
@font-face {
  font-family: 'Libertinus Serif';
  font-style: normal; font-weight: 700; font-display: swap;
  src: url('https://cdn.jsdelivr.net/fontsource/fonts/libertinus-serif@latest/latin-700-normal.woff2') format('woff2');
}
@font-face {
  font-family: 'Libertinus Serif';
  font-style: italic; font-weight: 400; font-display: swap;
  src: url('https://cdn.jsdelivr.net/fontsource/fonts/libertinus-serif@latest/latin-400-italic.woff2') format('woff2');
}

/* ---------- Tokens ---------- */
:root {
  /* Paleta */
  --crema:        #F3ECE1;
  --crema-claro:  #FAF6EF;
  --arena:        #E4D5C1;
  --arena-suave:  #EDE2D2;
  --camel:        #C39A6B;
  --terracota:    #B0654A;
  --terracota-oscuro: #97533B;
  --malva:        #B79A97;
  --cacao:        #4A3B30;
  --cacao-suave:  #6A5849;
  --oliva:        #8C8A6E;

  /* Tipografía */
  --serif:  'Libertinus Serif', 'Cormorant Garamond', Georgia, serif;
  --script: 'Italianno', 'Brush Script MT', cursive;
  --sans:   'Jost', ui-sans-serif, system-ui, -apple-system, 'Segoe UI', sans-serif;

  /* Medidas */
  --container: 1160px;
  --gutter: clamp(1.25rem, 5vw, 3rem);
  --section-y: clamp(4.5rem, 10vw, 8rem);
  --radius: 4px;
  --radius-pill: 999px;

  /* Sombras (largas y suaves, eco de la luz) */
  --shadow-soft: 0 18px 45px -25px rgba(74, 59, 48, 0.45);
  --shadow-card: 0 24px 60px -32px rgba(74, 59, 48, 0.55);
  --shadow-nav:  0 10px 30px -18px rgba(74, 59, 48, 0.5);
}

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

html { scroll-behavior: smooth; }

body {
  font-family: var(--sans);
  font-weight: 400;
  color: var(--cacao);
  background: var(--crema);
  line-height: 1.7;
  font-size: clamp(1rem, 0.95rem + 0.3vw, 1.125rem);
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  overflow-x: hidden;
}

img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
ul { list-style: none; }

/* ---------- Utilidades ---------- */
.container {
  width: 100%;
  max-width: var(--container);
  margin-inline: auto;
  padding-inline: var(--gutter);
}

.section { padding-block: var(--section-y); }
.section--arena { background: var(--arena-suave); }
.section--cacao { background: var(--cacao); color: var(--crema-claro); }

.kicker {
  font-family: var(--sans);
  font-size: 0.72rem;
  font-weight: 500;
  letter-spacing: 0.28em;
  text-transform: uppercase;
  color: var(--camel);
  display: inline-block;
  margin-bottom: 1.25rem;
}
.section--cacao .kicker { color: var(--camel); }

.title {
  font-family: var(--serif);
  font-weight: 400;
  line-height: 1.08;
  letter-spacing: 0.01em;
  font-size: clamp(2rem, 1.4rem + 3vw, 3.4rem);
}
.title strong { font-weight: 700; }
.title em { font-style: italic; }

.lead {
  max-width: 54ch;
  color: var(--cacao-suave);
  font-size: clamp(1.02rem, 0.98rem + 0.3vw, 1.2rem);
}
.section--cacao .lead { color: rgba(250, 246, 239, 0.8); }

.script-accent {
  font-family: var(--script);
  color: var(--terracota);
  line-height: 0.9;
  font-weight: 400;
}

/* ---------- Botones ---------- */
.btn {
  --btn-fg: var(--crema-claro);
  --btn-bg: var(--terracota);
  display: inline-flex;
  align-items: center;
  gap: 0.55rem;
  font-family: var(--sans);
  font-size: 0.85rem;
  font-weight: 500;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  padding: 0.9rem 1.8rem;
  border-radius: var(--radius-pill);
  border: 1.5px solid transparent;
  background: var(--btn-bg);
  color: var(--btn-fg);
  cursor: pointer;
  transition: transform 0.35s ease, box-shadow 0.35s ease, background 0.35s ease, color 0.35s ease, border-color 0.35s ease;
  will-change: transform;
}
.btn:hover { background: var(--terracota-oscuro); transform: translateY(-2px); box-shadow: var(--shadow-soft); }
.btn:focus-visible { outline: 2px solid var(--cacao); outline-offset: 3px; }

.btn--outline {
  --btn-bg: transparent;
  --btn-fg: var(--cacao);
  border-color: var(--camel);
}
.btn--outline:hover {
  background: var(--camel);
  color: var(--crema-claro);
  border-color: var(--camel);
}
.btn--on-dark { --btn-fg: var(--crema-claro); }
.btn--outline.btn--on-dark { color: var(--crema-claro); }

.btn svg { width: 1.05em; height: 1.05em; }

/* ---------- Navbar ---------- */
.nav {
  position: fixed;
  inset: 0 0 auto 0;
  z-index: 100;
  transition: background 0.4s ease, box-shadow 0.4s ease, padding 0.4s ease;
  padding-block: 1.4rem;
}
.nav__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1.5rem;
}
.nav.scrolled {
  background: rgba(243, 236, 225, 0.92);
  backdrop-filter: blur(10px);
  box-shadow: var(--shadow-nav);
  padding-block: 0.85rem;
}

.brand {
  display: inline-flex;
  align-items: baseline;
  gap: 0.12em;
  line-height: 1;
  color: var(--cacao);
  transition: color 0.4s ease;
}
.brand__yam  { font-family: var(--serif); font-weight: 700; font-size: 1.7rem; letter-spacing: 0.01em; }
.brand__studio { font-family: var(--script); font-size: 2.5rem; margin-left: 0.1em; color: var(--terracota); line-height: 0.6; }

/* Marca en claro cuando el nav está transparente sobre el hero */
.nav:not(.scrolled) .brand { color: var(--crema-claro); }
.nav:not(.scrolled) .brand__studio { color: var(--crema-claro); }
.nav:not(.scrolled) .nav__link { color: rgba(250, 246, 239, 0.9); }
.nav:not(.scrolled) .nav__toggle span { background: var(--crema-claro); }

.nav__links {
  display: flex;
  align-items: center;
  gap: clamp(1rem, 2.2vw, 2.1rem);
}
.nav__link {
  font-size: 0.82rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  font-weight: 500;
  color: var(--cacao);
  position: relative;
  padding-block: 0.2rem;
  transition: color 0.3s ease;
}
.nav__link::after {
  content: '';
  position: absolute;
  left: 0; bottom: -2px;
  width: 0; height: 1.5px;
  background: var(--camel);
  transition: width 0.3s ease;
}
.nav__link:hover::after { width: 100%; }
.nav__link:hover { color: var(--camel); }

.nav__cta { padding: 0.7rem 1.5rem; font-size: 0.78rem; }

.nav__toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: 0;
  cursor: pointer;
  padding: 6px;
}
.nav__toggle span {
  width: 26px; height: 2px;
  background: var(--cacao);
  transition: transform 0.35s ease, opacity 0.3s ease, background 0.4s ease;
}
.nav.open .nav__toggle span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav.open .nav__toggle span:nth-child(2) { opacity: 0; }
.nav.open .nav__toggle span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* ---------- Hero ---------- */
.hero {
  position: relative;
  min-height: 100svh;
  display: flex;
  align-items: center;
  color: var(--crema-claro);
  overflow: hidden;
  isolation: isolate;
  padding-block: 8rem 4rem;
  /* Foto del estudio con tinte amarronado (capa marrón en multiply) */
  background-image:
    linear-gradient(rgba(86, 58, 38, 0.34), rgba(70, 48, 33, 0.34)),
    url('../img/hero.jpg');
  background-blend-mode: multiply, normal;
  background-size: cover;
  background-position: center 38%;
  background-repeat: no-repeat;
}
/* Overlay amarronado + gradientes de contraste para el texto */
.hero::before {
  content: '';
  position: absolute; inset: 0; z-index: -1;
  background:
    linear-gradient(180deg, rgba(26, 18, 12, 0.55) 0%, rgba(26, 18, 12, 0) 22%),
    linear-gradient(101deg, rgba(28, 20, 13, 0.9) 0%, rgba(38, 27, 18, 0.64) 34%, rgba(52, 37, 25, 0.32) 62%, rgba(60, 44, 30, 0.16) 100%),
    linear-gradient(0deg, rgba(26, 18, 12, 0.72) 0%, rgba(26, 18, 12, 0) 42%);
}
.hero__inner {
  max-width: 40rem;
  text-shadow: 0 2px 18px rgba(26, 18, 12, 0.45);
  margin-inline: 0;
  margin-left: max(0px, calc((100% - var(--container)) / 2));
}
.hero .kicker { color: var(--camel); }

.hero__title {
  font-family: var(--serif);
  font-weight: 400;
  font-size: clamp(2rem, 1.5rem + 2.7vw, 3.7rem);
  line-height: 1.14;
  letter-spacing: 0.005em;
  margin-bottom: 1.5rem;
}
.hero__sub {
  color: rgba(250, 246, 239, 0.88);
  max-width: 42ch;
  margin-bottom: 2.4rem;
}
.hero__actions { display: flex; flex-wrap: wrap; gap: 1rem; align-items: center; }
.hero__scroll {
  position: absolute;
  left: 50%; bottom: 2rem; transform: translateX(-50%);
  font-size: 0.68rem; letter-spacing: 0.3em; text-transform: uppercase;
  color: rgba(250, 246, 239, 0.6);
  display: flex; flex-direction: column; align-items: center; gap: 0.5rem;
}
.hero__scroll::after {
  content: ''; width: 1px; height: 42px;
  background: linear-gradient(var(--camel), transparent);
  animation: scrollpulse 2.4s ease-in-out infinite;
}
@keyframes scrollpulse { 0%,100% { opacity: 0.3; transform: scaleY(0.6); } 50% { opacity: 1; transform: scaleY(1); } }

/* ---------- Enfoque ---------- */
.enfoque__head { max-width: 46rem; margin-bottom: clamp(2.5rem, 5vw, 4rem); }
.enfoque__tagline {
  font-family: var(--serif);
  font-size: clamp(1.6rem, 1.2rem + 2vw, 2.6rem);
  line-height: 1.2;
  margin-top: 1.5rem;
  color: var(--cacao);
}
.enfoque__tagline em { font-family: var(--script); font-size: 1.5em; color: var(--terracota); font-style: normal; }

.focos {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: clamp(1.5rem, 3vw, 2.75rem);
}
.foco { border-top: 1px solid rgba(140, 138, 110, 0.4); padding-top: 1.4rem; }
.foco__num { font-family: var(--serif); font-size: 2.6rem; color: var(--camel); line-height: 1; display: block; margin-bottom: 0.6rem; }
.foco h3 { font-family: var(--serif); font-weight: 600; font-size: 1.3rem; margin-bottom: 0.5rem; }
.foco p { font-size: 0.96rem; color: var(--cacao-suave); }

/* ---------- Bloque a dos columnas (Paola / Estudio) ---------- */
.split {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: clamp(2rem, 5vw, 4.5rem);
  align-items: center;
}
.split--reverse .split__media { order: 2; }

.split__body .title { margin-bottom: 1.4rem; }
.split__body p + p { margin-top: 1rem; }

.stats { display: flex; gap: clamp(1.5rem, 4vw, 3.5rem); margin-top: 2.2rem; }
.stat__num { font-family: var(--serif); font-weight: 700; font-size: clamp(2.2rem, 1.6rem + 2vw, 3.2rem); line-height: 1; color: var(--terracota); }
.stat__label { font-size: 0.8rem; letter-spacing: 0.12em; text-transform: uppercase; color: var(--cacao-suave); margin-top: 0.4rem; }

/* ---------- Placeholder de foto ---------- */
.photo-ph {
  position: relative;
  aspect-ratio: var(--ph-ratio, 4 / 5);
  border: 1px solid rgba(195, 154, 107, 0.55);
  padding: 0.7rem;
  background:
    radial-gradient(130% 80% at 75% 10%, rgba(250, 246, 239, 0.5), rgba(250, 246, 239, 0) 55%),
    linear-gradient(150deg, var(--arena) 0%, var(--camel) 130%);
  box-shadow: var(--shadow-card);
  overflow: hidden;
}
.photo-ph::after {
  content: '';
  position: absolute; inset: 0;
  background: repeating-linear-gradient(120deg, rgba(74,59,48,0.06) 0 2px, transparent 2px 90px);
  pointer-events: none;
}
.photo-ph__inner {
  height: 100%;
  border: 1px dashed rgba(74, 59, 48, 0.28);
  display: flex; flex-direction: column;
  align-items: center; justify-content: center;
  text-align: center; gap: 0.35rem; padding: 1.5rem;
  position: relative; z-index: 1;
}
.photo-ph__tag { font-size: 0.68rem; letter-spacing: 0.28em; text-transform: uppercase; color: var(--cacao); opacity: 0.75; }
.photo-ph__desc { font-family: var(--serif); font-style: italic; font-size: 1.1rem; color: var(--cacao); }
.photo-ph--wide { --ph-ratio: 16 / 10; }
.photo-ph--tall { --ph-ratio: 3 / 4; }

.media-duo { display: grid; grid-template-columns: 1fr 1fr; gap: 1rem; }
.media-duo .photo-ph--sq { --ph-ratio: 1 / 1; }

/* Foto real enmarcada (estética editorial: filete camel + margen crema) */
.frame {
  border: 1px solid rgba(195, 154, 107, 0.55);
  padding: 0.55rem;
  background: var(--crema-claro);
  box-shadow: var(--shadow-card);
  overflow: hidden;
}
.frame img {
  display: block;
  width: 100%;
  object-fit: cover;
  aspect-ratio: var(--ph-ratio, 4 / 5);
}
.frame--tall img { --ph-ratio: 3 / 4; }

/* ---------- Clases ---------- */
.clases__grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: clamp(1.25rem, 3vw, 2rem);
  margin-top: clamp(2.5rem, 5vw, 3.5rem);
}
.clase {
  background: var(--crema-claro);
  border: 1px solid rgba(195, 154, 107, 0.35);
  border-radius: var(--radius);
  padding: clamp(1.75rem, 3vw, 2.5rem);
  display: flex; flex-direction: column;
  box-shadow: var(--shadow-soft);
  transition: transform 0.4s ease, box-shadow 0.4s ease;
}
.clase:hover { transform: translateY(-6px); box-shadow: var(--shadow-card); }
.clase__meta { font-size: 0.72rem; letter-spacing: 0.2em; text-transform: uppercase; color: var(--camel); margin-bottom: 0.9rem; }
.clase h3 { font-family: var(--serif); font-weight: 600; font-size: 1.55rem; margin-bottom: 0.7rem; }
.clase p { color: var(--cacao-suave); font-size: 0.98rem; flex-grow: 1; }
.clase__foot { margin-top: 1.5rem; font-size: 0.85rem; color: var(--oliva); display: flex; align-items: center; gap: 0.5rem; }

.clases__note {
  margin-top: 2.5rem; text-align: center;
  font-family: var(--serif); font-style: italic;
  font-size: clamp(1.1rem, 1rem + 0.6vw, 1.4rem); color: var(--cacao);
}
.clases__note span { color: var(--terracota); }

/* ---------- Salud ---------- */
.salud__grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(180px, 1fr)); gap: 1.5rem 2rem; margin-top: 2.5rem; }
.salud__item { display: flex; gap: 0.8rem; align-items: flex-start; font-size: 0.95rem; }
.salud__item::before { content: ''; flex: 0 0 auto; width: 8px; height: 8px; margin-top: 0.55rem; border-radius: 50%; background: var(--terracota); }

/* ---------- Contacto ---------- */
.contacto__grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); gap: clamp(2rem, 5vw, 4rem); align-items: center; }
.contacto__actions { display: flex; flex-wrap: wrap; gap: 1rem; margin-top: 2rem; }
.info-list { margin-top: 1rem; }
.info-list li { display: flex; gap: 0.85rem; align-items: flex-start; padding-block: 0.7rem; border-bottom: 1px solid rgba(140, 138, 110, 0.3); }
.info-list li:last-child { border-bottom: 0; }
.info-list svg { width: 1.2rem; height: 1.2rem; color: var(--camel); flex: 0 0 auto; margin-top: 0.15rem; }
.info-list .info-label { font-size: 0.72rem; letter-spacing: 0.18em; text-transform: uppercase; color: var(--oliva); display: block; }
.info-list a:hover { color: var(--terracota); }

/* ---------- Footer ---------- */
.footer { background: var(--cacao); color: var(--crema-claro); padding-block: clamp(3.5rem, 7vw, 5rem) 2.5rem; }
.footer__top { display: grid; grid-template-columns: 1.3fr 1fr; gap: 2.5rem; align-items: start; }
.footer .brand { color: var(--crema-claro); margin-bottom: 1rem; }
.footer .brand__studio { color: var(--camel); }
.footer__slogan { font-family: var(--serif); font-style: italic; color: rgba(250,246,239,0.75); max-width: 30ch; }
.footer__nav { display: flex; flex-direction: column; gap: 0.7rem; }
.footer__nav a { font-size: 0.85rem; letter-spacing: 0.1em; text-transform: uppercase; color: rgba(250,246,239,0.8); transition: color 0.3s ease; }
.footer__nav a:hover { color: var(--camel); }
.footer__bottom { margin-top: clamp(2.5rem, 5vw, 3.5rem); padding-top: 1.5rem; border-top: 1px solid rgba(250,246,239,0.15); display: flex; flex-wrap: wrap; gap: 0.5rem 1.5rem; justify-content: space-between; font-size: 0.8rem; color: rgba(250,246,239,0.55); }
.footer__bottom a { color: rgba(250,246,239,0.7); }
.footer__bottom a:hover { color: var(--camel); }

/* ---------- WhatsApp flotante ---------- */
.wa-float {
  position: fixed; right: 1.25rem; bottom: 1.25rem; z-index: 90;
  width: 3.4rem; height: 3.4rem; border-radius: 50%;
  background: var(--terracota); color: var(--crema-claro);
  display: grid; place-items: center;
  box-shadow: 0 12px 30px -8px rgba(74,59,48,0.6);
  transition: transform 0.35s ease, background 0.35s ease;
}
.wa-float:hover { transform: scale(1.08); background: var(--terracota-oscuro); }
.wa-float svg { width: 1.7rem; height: 1.7rem; }

/* ---------- Divisor de onda (fluir) ---------- */
.wave { display: block; width: 100%; height: auto; color: var(--camel); }

/* ---------- Reveal on scroll (sutil, SOLO en imágenes; los textos no animan) ---------- */
.split__media.reveal { opacity: 0; transform: translateY(14px); transition: opacity 0.6s ease, transform 0.6s ease; }
.split__media.reveal.in { opacity: 1; transform: none; }

/* ---------- Responsive ---------- */
@media (max-width: 860px) {
  .nav__links {
    position: fixed;
    inset: 0 0 0 auto;
    width: min(80vw, 340px);
    flex-direction: column;
    justify-content: center;
    align-items: flex-start;
    gap: 1.8rem;
    padding: 3rem;
    background: var(--crema);
    box-shadow: -20px 0 60px -30px rgba(74,59,48,0.7);
    transform: translateX(100%);
    transition: transform 0.45s cubic-bezier(0.22, 1, 0.36, 1);
  }
  .nav.open .nav__links { transform: none; }
  .nav .nav__link { color: var(--cacao); font-size: 1rem; }
  .nav:not(.scrolled) .nav__link { color: var(--cacao); }
  .nav__cta { align-self: flex-start; }
  .nav__toggle { display: flex; z-index: 101; }
  .split--reverse .split__media { order: 0; }
  .footer__top { grid-template-columns: 1fr; }
  .media-duo { grid-template-columns: 1fr; }
  .hero__scroll { display: none; }
}

/* Ocultar el hint de scroll cuando el hero es bajo (evita solaparse con los CTA) */
@media (max-height: 760px) {
  .hero__scroll { display: none; }
}

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