/* =========================================================================
   ETHIX — Design System
   Base neutra premium. El color de producto es acento, nunca identidad.
   Jerarquía de color: 90% neutros / 8% color de producto / 2% color de acción.
   ========================================================================= */

:root {
  /* --- Primarios (identidad ETHIX) --- */
  --verde-profundo: #1F3D2E;
  --verde-casi-negro: #061A14;
  --blanco-calido: #F7F6F2;

  /* --- Secundarios --- */
  --verde-suave: #A8BFAF;
  --oro-suave: #D4AF37;
  --gris-calido: #687280;

  /* --- Neutros derivados --- */
  --gris-claro: #E7E4DC;
  --gris-linea: #DAD6CC;
  --texto: #1B2620;
  --texto-suave: #5A635C;
  --blanco-puro: #FFFFFF;

  /* --- Acento de producto (se sobreescribe por página de producto) --- */
  --acento: var(--verde-profundo);
  --acento-suave: rgba(31, 61, 46, 0.08);

  /* --- Tipografía --- */
  --font-head: "Playfair Display", Georgia, "Times New Roman", serif;
  --font-body: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  --font-mark: "Cinzel", var(--font-head);

  /* --- Escala 8px --- */
  --s-1: 4px;  --s-2: 8px;  --s-3: 16px; --s-4: 24px;
  --s-5: 32px; --s-6: 48px; --s-7: 64px; --s-8: 96px; --s-9: 128px;

  /* --- Radios / sombras --- */
  --radio: 14px;
  --radio-sm: 8px;
  --radio-lg: 24px;
  --sombra-sm: 0 1px 2px rgba(6, 26, 20, 0.04), 0 2px 8px rgba(6, 26, 20, 0.05);
  --sombra: 0 4px 24px rgba(6, 26, 20, 0.07);
  --sombra-lg: 0 18px 48px rgba(6, 26, 20, 0.12);

  --ancho: 1200px;
  --transicion: 0.4s cubic-bezier(0.22, 1, 0.36, 1);
}

/* --- Reset --- */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
body {
  font-family: var(--font-body);
  font-size: 17px;
  line-height: 1.7;
  color: var(--texto);
  background: var(--blanco-calido);
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  overflow-x: hidden;
}
img, svg { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
button { font-family: inherit; cursor: pointer; border: none; background: none; }
ul { list-style: none; }

/* --- Tipografía --- */
h1, h2, h3, h4 { font-family: var(--font-head); font-weight: 500; line-height: 1.12; color: var(--verde-casi-negro); letter-spacing: -0.01em; }
h1 { font-size: clamp(2.6rem, 6vw, 4.4rem); }
h2 { font-size: clamp(2rem, 4vw, 3rem); }
h3 { font-size: clamp(1.35rem, 2.4vw, 1.9rem); }
h4 { font-size: 1.15rem; }
p { color: var(--texto-suave); }

.eyebrow {
  font-family: var(--font-body);
  font-size: 0.78rem;
  font-weight: 600;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--acento);
  display: inline-block;
  margin-bottom: var(--s-3);
}
.eyebrow--muted { color: var(--gris-calido); }

/* --- Artículos (ETHIX Journal) --- */
.article-hero-cover {
  aspect-ratio: 21/9; border-radius: var(--radio-lg);
  background: linear-gradient(140deg, var(--verde-profundo), var(--verde-casi-negro));
  display: flex; align-items: center; justify-content: center; color: var(--verde-suave);
  margin-bottom: var(--s-6);
}
.article-meta-row {
  display: flex; gap: var(--s-4); flex-wrap: wrap; align-items: center;
  color: var(--gris-calido); font-size: 0.88rem; margin: var(--s-3) 0 var(--s-6);
  border-bottom: 1px solid var(--gris-linea); padding-bottom: var(--s-5);
}
.article-body { max-width: 720px; margin: 0 auto; }
.article-body h2 { font-size: 1.55rem; margin: var(--s-6) 0 var(--s-3); }
.article-body h2:first-child { margin-top: 0; }
.article-body p { margin-bottom: var(--s-4); }
.article-body ul { margin: 0 0 var(--s-4) var(--s-5); }
.article-body li { margin-bottom: var(--s-2); }
.article-note {
  background: var(--gris-claro); border-radius: var(--radio); padding: var(--s-4);
  font-size: 0.9rem; color: var(--texto-suave); margin-top: var(--s-6);
}

/* --- Layout --- */
.container { width: 100%; max-width: var(--ancho); margin: 0 auto; padding: 0 var(--s-4); }
.section { padding: var(--s-8) 0; }
.section--tight { padding: var(--s-7) 0; }
.section-head { max-width: 640px; margin: 0 auto var(--s-6); text-align: center; }
.section-head p { margin-top: var(--s-3); font-size: 1.08rem; }
.center { text-align: center; }
.lead { font-size: 1.18rem; line-height: 1.7; color: var(--texto-suave); }

.bg-dark { background: var(--verde-casi-negro); color: var(--blanco-calido); }
.bg-dark h1, .bg-dark h2, .bg-dark h3, .bg-dark h4 { color: var(--blanco-calido); }
.bg-dark p { color: rgba(247, 246, 242, 0.72); }
.bg-green { background: var(--verde-profundo); color: var(--blanco-calido); }
.bg-green h1, .bg-green h2, .bg-green h3 { color: var(--blanco-calido); }
.bg-green p { color: rgba(247, 246, 242, 0.78); }
.bg-soft { background: var(--gris-claro); }
.bg-white { background: var(--blanco-puro); }

/* --- Wordmark (fallback de texto) --- */
.wordmark {
  font-family: var(--font-mark);
  font-weight: 500;
  letter-spacing: 0.42em;
  text-indent: 0.42em;
  font-size: 1.35rem;
  color: var(--verde-casi-negro);
  line-height: 1;
}
.wordmark--light { color: var(--blanco-calido); }

/* --- Brand lockup (símbolo transparente + wordmark) --- */
.brand { display: flex; align-items: center; gap: 4px; }
.brand__mark { height: 40px; width: auto; display: block; flex-shrink: 0; }

.footer__lockup { display: flex; align-items: center; gap: 5px; margin-bottom: var(--s-3); }
.footer__mark { height: 48px; width: auto; display: block; flex-shrink: 0; }

/* --- Botones --- */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: var(--s-2);
  padding: 15px 30px;
  font-size: 0.9rem; font-weight: 600; letter-spacing: 0.02em;
  border-radius: 100px;
  transition: transform var(--transicion), background var(--transicion), color var(--transicion), box-shadow var(--transicion);
  white-space: nowrap;
}
.btn:hover { transform: translateY(-2px); }
.btn:active { transform: translateY(0); }
.btn--primary { background: var(--verde-profundo); color: var(--blanco-calido); box-shadow: var(--sombra-sm); }
.btn--primary:hover { background: var(--verde-casi-negro); box-shadow: var(--sombra); }
.btn--accent { background: var(--acento); color: #fff; box-shadow: var(--sombra-sm); }
.btn--secondary { background: transparent; color: var(--verde-casi-negro); border: 1.5px solid var(--gris-linea); }
.btn--secondary:hover { border-color: var(--verde-profundo); background: var(--verde-profundo); color: var(--blanco-calido); }
.btn--light { background: var(--blanco-calido); color: var(--verde-casi-negro); }
.btn--ghost-light { border: 1.5px solid rgba(247,246,242,0.4); color: var(--blanco-calido); }
.btn--ghost-light:hover { background: var(--blanco-calido); color: var(--verde-casi-negro); }
.btn--whatsapp { background: #1FA855; color: #fff; }
.btn--whatsapp:hover { background: #178a45; }
.btn--block { width: 100%; }

/* --- Badges / pills --- */
.badge {
  display: inline-block; padding: 5px 13px; border-radius: 100px;
  font-size: 0.7rem; font-weight: 700; letter-spacing: 0.08em; text-transform: uppercase;
}
.badge--new { background: var(--verde-casi-negro); color: var(--blanco-calido); }
.badge--accent { background: var(--acento-suave); color: var(--acento); }
.pill {
  display: inline-block; padding: 6px 14px; border-radius: 100px;
  font-size: 0.8rem; font-weight: 500; color: var(--texto-suave);
  background: var(--blanco-calido); border: 1px solid var(--gris-linea);
}

/* =========================================================================
   Header / Nav
   ========================================================================= */
.site-header {
  position: sticky; top: 0; z-index: 100;
  background: rgba(247, 246, 242, 0.82);
  backdrop-filter: saturate(140%) blur(14px);
  border-bottom: 1px solid var(--gris-linea);
}
.nav { display: flex; align-items: center; justify-content: space-between; height: 74px; }
.nav__links { display: flex; align-items: center; gap: var(--s-5); }
.nav__links a { font-size: 0.92rem; font-weight: 500; color: var(--texto); position: relative; transition: color 0.25s; }
.nav__links a::after {
  content: ""; position: absolute; left: 0; bottom: -6px; width: 0; height: 1.5px;
  background: var(--verde-profundo); transition: width var(--transicion);
}
.nav__links a:hover { color: var(--verde-profundo); }
.nav__links a:hover::after { width: 100%; }
.nav__actions { display: flex; align-items: center; gap: var(--s-4); }
.nav__icon { color: var(--texto); transition: color 0.25s; }
.nav__icon:hover { color: var(--verde-profundo); }
.nav__toggle { display: none; }

/* =========================================================================
   Hero
   ========================================================================= */
.hero {
  position: relative; background: var(--verde-casi-negro); color: var(--blanco-calido);
  overflow: hidden;
}
.hero__inner {
  display: grid; grid-template-columns: 1.05fr 0.95fr; align-items: center; gap: var(--s-6);
  min-height: 82vh; padding: var(--s-8) 0;
}
.hero__content { max-width: 540px; }
.hero h1 { color: var(--blanco-calido); margin-bottom: var(--s-4); }
.hero__content p { font-size: 1.2rem; color: rgba(247,246,242,0.75); margin-bottom: var(--s-5); }
.hero__cta { display: flex; gap: var(--s-3); flex-wrap: wrap; }
.hero__visual { position: relative; display: flex; justify-content: center; min-height: 560px; }
.hero__visual img { max-height: 560px; width: auto; filter: drop-shadow(0 30px 60px rgba(0,0,0,0.5)); }
.hero__visual-img {
  position: absolute; top: 0; left: 50%; transform: translateX(-50%);
  opacity: 0; transition: opacity 0.6s ease;
}
.hero__visual-img.is-active { opacity: 1; }
.hero__glow {
  position: absolute; inset: 0; z-index: 0;
  background: radial-gradient(circle at 70% 45%, rgba(168,191,175,0.16), transparent 55%);
}
.hero .container { position: relative; z-index: 1; }
.hero__trust {
  display: flex; gap: var(--s-6); flex-wrap: wrap;
  border-top: 1px solid rgba(247,246,242,0.14);
  padding: var(--s-4) 0; position: relative; z-index: 1;
}
.hero__trust-item { display: flex; align-items: center; gap: var(--s-2); font-size: 0.85rem; color: rgba(247,246,242,0.7); }
.hero__trust-item svg { color: var(--verde-suave); flex-shrink: 0; }

/* =========================================================================
   Grids
   ========================================================================= */
.grid { display: grid; gap: var(--s-4); }
.grid--2 { grid-template-columns: repeat(2, 1fr); }
.grid--3 { grid-template-columns: repeat(3, 1fr); }
.grid--4 { grid-template-columns: repeat(4, 1fr); }
.grid--5 { grid-template-columns: repeat(5, 1fr); }

/* --- Feature (icono + texto) --- */
.feature { text-align: center; padding: var(--s-3); }
.feature__icon {
  width: 52px; height: 52px; margin: 0 auto var(--s-3);
  display: flex; align-items: center; justify-content: center;
  color: var(--verde-profundo);
}
.bg-dark .feature__icon, .bg-green .feature__icon { color: var(--verde-suave); }
.feature h4 { margin-bottom: var(--s-1); }
.feature p { font-size: 0.92rem; }

/* =========================================================================
   Product card
   ========================================================================= */
.card-product {
  background: var(--blanco-puro); border-radius: var(--radio);
  border: 1px solid var(--gris-linea); overflow: hidden;
  display: flex; flex-direction: column;
  transition: transform var(--transicion), box-shadow var(--transicion), border-color var(--transicion);
}
.card-product:hover { transform: translateY(-6px); box-shadow: var(--sombra-lg); border-color: transparent; }
.card-product__media {
  position: relative; aspect-ratio: 1 / 1; flex: 0 0 auto; overflow: hidden;
  padding: var(--s-4); background: var(--gris-claro);
}
.card-product__media::before {
  content: ""; position: absolute; inset: 0;
  background: radial-gradient(circle at 50% 60%, var(--tint, rgba(31,61,46,0.10)), transparent 70%);
}
.card-product__media img {
  position: absolute; top: 50%; left: 50%; z-index: 1;
  max-height: 78%; max-width: 82%; width: auto; height: auto;
  transform: translate(-50%, -50%); transition: transform var(--transicion);
}
.card-product:hover .card-product__media img { transform: translate(-50%, -50%) scale(1.05); }
.card-product__badges { position: absolute; top: var(--s-3); left: var(--s-3); z-index: 2; display: flex; gap: 6px; }
.card-product__body { padding: var(--s-4); display: flex; flex-direction: column; gap: 6px; flex: 1; }
.card-product__cat { font-size: 0.72rem; font-weight: 600; letter-spacing: 0.1em; text-transform: uppercase; color: var(--gris-calido); }
.card-product__name { font-family: var(--font-head); font-size: 1.15rem; color: var(--verde-casi-negro); line-height: 1.2; min-height: 2.4em; }
.card-product__desc { font-size: 0.88rem; color: var(--texto-suave); flex: 1; }
.card-product__foot { display: flex; align-items: center; justify-content: space-between; margin-top: var(--s-2); }
.card-product__price { font-size: 1.05rem; font-weight: 600; color: var(--verde-casi-negro); }
.card-product__price span { font-size: 0.72rem; font-weight: 500; color: var(--gris-calido); }
.card-product__cart {
  width: 40px; height: 40px; border-radius: 50%; background: var(--verde-profundo); color: #fff;
  display: flex; align-items: center; justify-content: center; transition: background var(--transicion), transform var(--transicion);
}
.card-product__cart:hover { background: var(--acento, var(--verde-casi-negro)); transform: scale(1.08); }

/* =========================================================================
   System card
   ========================================================================= */
.card-system {
  position: relative; border-radius: var(--radio-lg); overflow: hidden;
  background: var(--verde-profundo); color: var(--blanco-calido);
  padding: var(--s-6) var(--s-5); min-height: 300px;
  display: flex; flex-direction: column; justify-content: flex-end;
  transition: transform var(--transicion), box-shadow var(--transicion);
}
.card-system:hover { transform: translateY(-6px); box-shadow: var(--sombra-lg); }
.card-system::after {
  content: ""; position: absolute; inset: 0; z-index: 0;
  background: linear-gradient(180deg, transparent, rgba(6,26,20,0.55));
}
.card-system > * { position: relative; z-index: 1; }
.card-system h3 { color: var(--blanco-calido); margin-bottom: 6px; }
.card-system p { color: rgba(247,246,242,0.8); font-size: 0.95rem; margin-bottom: var(--s-4); }
.card-system__link { font-size: 0.82rem; font-weight: 600; letter-spacing: 0.06em; text-transform: uppercase; color: var(--verde-suave); }

/* =========================================================================
   Review / testimonial
   ========================================================================= */
.review { background: var(--blanco-puro); border: 1px solid var(--gris-linea); border-radius: var(--radio); padding: var(--s-5); }
.review__stars { color: var(--oro-suave); letter-spacing: 2px; margin-bottom: var(--s-3); font-size: 0.9rem; }
.review__text { color: var(--texto); font-size: 0.98rem; margin-bottom: var(--s-4); }
.review__author { display: flex; align-items: center; gap: var(--s-3); }
.review__avatar { width: 42px; height: 42px; border-radius: 50%; background: var(--verde-suave); color: var(--verde-casi-negro); display: flex; align-items: center; justify-content: center; font-weight: 600; overflow: hidden; flex-shrink: 0; }
.review__avatar img { width: 100%; height: 100%; object-fit: cover; }
.review__name { font-weight: 600; font-size: 0.9rem; color: var(--verde-casi-negro); }

/* =========================================================================
   Tiendas y marcas aliadas
   ========================================================================= */
.partner-card {
  background: var(--blanco-puro); border: 1px solid var(--gris-linea); border-radius: var(--radio);
  padding: var(--s-5); display: flex; flex-direction: column; gap: var(--s-3);
  transition: transform var(--transicion), box-shadow var(--transicion);
}
.partner-card:hover { transform: translateY(-4px); box-shadow: var(--sombra-lg); }
.partner-card__head { display: flex; align-items: center; gap: var(--s-3); }
.partner-card__icon {
  width: 44px; height: 44px; border-radius: 50%; flex-shrink: 0;
  background: var(--verde-suave); color: var(--verde-casi-negro);
  display: flex; align-items: center; justify-content: center;
  overflow: hidden;
}
.partner-card__icon img { width: 100%; height: 100%; object-fit: cover; }
.partner-card__name { font-family: var(--font-head); font-size: 1.15rem; color: var(--verde-casi-negro); line-height: 1.2; }
.partner-card__cat { font-size: 0.78rem; letter-spacing: 0.06em; text-transform: uppercase; color: var(--gris-calido); }
.partner-card__text { color: var(--texto-suave); font-size: 0.95rem; flex: 1; }
.partner-card__address { display: flex; gap: 8px; align-items: flex-start; font-size: 0.88rem; color: var(--texto); border-top: 1px solid var(--gris-linea); padding-top: var(--s-3); }
.partner-card__address svg { flex-shrink: 0; margin-top: 2px; color: var(--verde-profundo); }
.partner-card__link {
  display: inline-flex; align-items: center; gap: 6px; font-size: 0.85rem; font-weight: 600;
  color: var(--verde-profundo); margin-top: var(--s-2);
}
.partner-card__link:hover { color: var(--verde-casi-negro); }
.review__role { font-size: 0.8rem; color: var(--gris-calido); }

/* =========================================================================
   FAQ (accordion)
   ========================================================================= */
.faq { max-width: 780px; margin: 0 auto; }
.faq__item { border-bottom: 1px solid var(--gris-linea); }
.faq__q {
  width: 100%; text-align: left; display: flex; justify-content: space-between; align-items: center; gap: var(--s-3);
  padding: var(--s-4) 0; font-size: 1.05rem; font-weight: 500; color: var(--verde-casi-negro); font-family: var(--font-head);
}
.faq__icon { flex-shrink: 0; transition: transform var(--transicion); color: var(--acento); font-size: 1.4rem; line-height: 1; }
.faq__item[open] .faq__icon { transform: rotate(45deg); }
.faq__a { padding: 0 0 var(--s-4); color: var(--texto-suave); font-size: 0.98rem; }
.faq__item summary { list-style: none; }
.faq__item summary::-webkit-details-marker { display: none; }

/* =========================================================================
   CTA band
   ========================================================================= */
.cta-band { text-align: center; }
.cta-band h2 { margin-bottom: var(--s-3); }
.cta-band p { max-width: 520px; margin: 0 auto var(--s-5); }

/* =========================================================================
   Footer
   ========================================================================= */
.site-footer { background: var(--verde-profundo); color: var(--blanco-calido); padding: var(--s-8) 0 var(--s-5); }
.footer__grid { display: grid; grid-template-columns: 1.6fr 1fr 1fr 1fr; gap: var(--s-5); margin-bottom: var(--s-6); }
.footer__brand p { color: rgba(247,246,242,0.65); font-size: 0.9rem; margin-top: var(--s-3); max-width: 260px; }
.footer h5 { font-family: var(--font-body); font-size: 0.78rem; letter-spacing: 0.14em; text-transform: uppercase; color: var(--verde-suave); margin-bottom: var(--s-3); }
.footer__grid a { display: block; color: rgba(247,246,242,0.78); font-size: 0.9rem; padding: 5px 0; transition: color 0.25s; }
.footer__grid a:hover { color: var(--blanco-calido); }
.footer__social { display: flex; gap: var(--s-3); margin-top: var(--s-4); }
.footer__social a { color: rgba(247,246,242,0.7); }
.footer__social a:hover { color: var(--blanco-calido); }
.footer__bottom { border-top: 1px solid rgba(247,246,242,0.14); padding-top: var(--s-4); display: flex; justify-content: space-between; flex-wrap: wrap; gap: var(--s-2); font-size: 0.82rem; color: rgba(247,246,242,0.55); }

/* =========================================================================
   WhatsApp float
   ========================================================================= */
.wa-float {
  position: fixed; right: 22px; bottom: 22px; z-index: 200;
  width: 58px; height: 58px; border-radius: 50%; background: #1FA855; color: #fff;
  display: flex; align-items: center; justify-content: center;
  box-shadow: 0 10px 30px rgba(31,168,85,0.42); transition: transform var(--transicion);
}
.wa-float:hover { transform: scale(1.08); }
.wa-float svg { width: 30px; height: 30px; }

/* =========================================================================
   Animaciones (reveal on scroll)
   ========================================================================= */
[data-reveal] { opacity: 0; transform: translateY(24px); transition: opacity 0.7s ease, transform 0.7s cubic-bezier(0.22,1,0.36,1); }
[data-reveal].is-visible { opacity: 1; transform: none; }
@media (prefers-reduced-motion: reduce) {
  * { animation: none !important; transition: none !important; scroll-behavior: auto !important; }
  [data-reveal] { opacity: 1; transform: none; }
}

/* =========================================================================
   Responsive (mobile-first adjustments)
   ========================================================================= */
@media (max-width: 980px) {
  .footer__grid { grid-template-columns: 1fr 1fr; }
  .hero__inner { grid-template-columns: 1fr; min-height: auto; text-align: center; padding-top: var(--s-6); }
  .hero__content { margin: 0 auto; }
  .hero__cta { justify-content: center; }
  .hero__visual { order: -1; }
  .hero__visual img { max-height: 380px; }
  .grid--5 { grid-template-columns: repeat(3, 1fr); }
  .grid--4 { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 760px) {
  body { font-size: 16px; }
  .section { padding: var(--s-7) 0; }
  .nav__links { display: none; }
  .nav__toggle { display: flex; }
  .nav__links.is-open {
    display: flex; flex-direction: column; position: absolute; top: 74px; left: 0; right: 0;
    background: var(--blanco-calido); padding: var(--s-4); gap: var(--s-3); border-bottom: 1px solid var(--gris-linea);
  }
  .grid--3, .grid--4, .grid--5 { grid-template-columns: repeat(2, 1fr); }
  .footer__grid { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 480px) {
  .grid--2, .grid--3, .grid--4, .grid--5 { grid-template-columns: 1fr; }
  .footer__grid { grid-template-columns: 1fr; }
}