/* ==========================================================================
   EMED BIOTECHNOLOGY — Shared Stylesheet
   Mobile-first, Flexbox/Grid, accessible, con microinteracciones suaves.
   ========================================================================== */

/* --------------------------------------------------------------------------
   1. Google Fonts
   -------------------------------------------------------------------------- */
@import url('https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700&display=swap');

/* --------------------------------------------------------------------------
   2. Variables
   -------------------------------------------------------------------------- */
:root{
  --color-primary: #1e49e2;
  --color-primary-dark: #12318f;
  --color-primary-light: #e8edfc;
  --color-recovery: #0d8c8c;
  --color-cognitive: #1f4de8;
  --color-longevity: #8b5cf6;
  --color-metabolic: #f5820a;
  --color-performance: #e91e7b;
  --color-dark: #10141f;
  --color-text: #4b5568;
  --color-text-light: #6b7686;
  --color-bg: #ffffff;
  --color-bg-alt: #f4f7fc;
  --color-border: #e3e8f2;
  --color-white: #ffffff;
  --font-heading: 'Eurostyle Next', 'Eurostile', 'Segoe UI', sans-serif;
  --font-body: 'Inter', 'Segoe UI', sans-serif;
  --container-width: 1180px;
  --radius-sm: 8px;
  --radius-md: 14px;
  --radius-lg: 22px;
  --radius-round: 999px;
  --shadow-sm: 0 2px 8px rgba(16,20,31,0.06);
  --shadow-md: 0 10px 30px rgba(16,20,31,0.08);
  --shadow-lg: 0 20px 45px rgba(16,20,31,0.12);

  /* Curva suave profesional — ease-out-expo */
  --ease: cubic-bezier(0.16, 1, 0.3, 1);
  /* Duración predeterminada para hover/transiciones */
  --dur: 0.4s;
}

/* --------------------------------------------------------------------------
   3. Preloader
   -------------------------------------------------------------------------- */
#preloader{
  position: fixed; inset: 0; z-index: 9999;
  display: flex; align-items: center; justify-content: center;
  background: var(--color-bg);
  transition: opacity 0.5s ease, visibility 0.5s ease;
}
#preloader.is-hidden{ opacity: 0; visibility: hidden; pointer-events: none; }
#preloader .spinner{
  width: 56px; height: 56px; border-radius: 50%;
  border: 5px solid var(--color-border);
  border-top-color: var(--color-primary);
  animation: spin 0.9s linear infinite;
}
@keyframes spin{ to{ transform: rotate(360deg); } }

/* --------------------------------------------------------------------------
   4. Reset
   -------------------------------------------------------------------------- */
*, *::before, *::after{ box-sizing: border-box; }
html{ scroll-behavior: auto; }
body, h1, h2, h3, h4, p, figure, blockquote, ul, ol, dl{ margin: 0; }
ul, ol{ padding: 0; list-style: none; }
img, picture, svg{ display: block; max-width: 100%; }
a{ color: inherit; text-decoration: none; }
button, input, select, textarea{ font: inherit; color: inherit; }
button{ cursor: pointer; background: none; border: none; }

body{
  font-family: var(--font-body);
  color: var(--color-text);
  background-color: var(--color-bg);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}
h1, h2, h3, h4{
  font-family: var(--font-heading);
  color: var(--color-dark);
  line-height: 1.2;
  font-weight: 700;
}
h1{ font-size: clamp(2rem, 5vw + 1rem, 3.4rem); font-weight: 800; }
h2{ font-size: clamp(1.6rem, 3vw + 1rem, 2.5rem); font-weight: 700; }
h3{ font-size: 1.15rem; font-weight: 600; }
p{ color: var(--color-text); }

:focus-visible{
  outline: 3px solid var(--color-primary);
  outline-offset: 2px;
  border-radius: 4px;
}
.skip-link{
  position: absolute; left: -999px; top: auto;
  background: var(--color-primary); color: #fff;
  padding: 10px 18px; z-index: 1000; border-radius: 0 0 8px 0;
}
.skip-link:focus{ left: 0; top: 0; }

/* --------------------------------------------------------------------------
   5. Layout utilities
   -------------------------------------------------------------------------- */
.container{ width: 100%; max-width: var(--container-width) !important; margin-inline: auto; padding-inline: 20px; }
.section{ padding-block: 64px; }
.section--alt{ background-color: var(--color-bg-alt); }
.section-tag{
  display: inline-flex; align-items: center; gap: 10px;
  color: var(--color-primary); font-weight: 700; font-size: 0.8rem;
  letter-spacing: 0.08em; text-transform: uppercase; margin-bottom: 14px;
}
.section-tag::before{
  content: ""; width: 22px; height: 3px;
  background: var(--color-primary); border-radius: 2px;
}
.section-head{ margin-bottom: 40px; }
.section-head--split{ display: flex; flex-wrap: wrap; gap: 20px; justify-content: space-between; align-items: flex-end; }
.text-center{ text-align: center; }
.max-w{ max-width: 640px; }
.mx-auto{ margin-inline: auto; }
.visually-hidden{ position: absolute !important; width: 1px; height: 1px; padding: 0; margin: -1px; overflow: hidden; clip: rect(0,0,0,0); white-space: nowrap; border: 0; }

.grid{ display: grid; gap: 24px; }
.grid-2{ grid-template-columns: 1fr; }
.grid-3{ grid-template-columns: 1fr; }
.grid-4{ grid-template-columns: 1fr; }
.grid-5{ grid-template-columns: 1fr; }
@media (min-width:620px){ .grid-2{ grid-template-columns: repeat(2,1fr); } .grid-4{ grid-template-columns: repeat(2,1fr); } }
@media (min-width:860px){ .grid-3{ grid-template-columns: repeat(3,1fr); } .grid-4{ grid-template-columns: repeat(4,1fr); } }
@media (min-width:980px){ .grid-5{ grid-template-columns: repeat(5,1fr); } }

.flex-row{ display: flex; flex-wrap: wrap; gap: 24px; }

.split{
  display: grid; grid-template-columns: 1fr; gap: 40px; align-items: center;
}
@media (min-width:900px){ .split{ grid-template-columns: 1fr 1fr; gap: 56px; } .split--reverse .split__media{ order: 2; } }

/* --------------------------------------------------------------------------
   6. Buttons
   -------------------------------------------------------------------------- */
.btn{
  display: inline-flex; align-items: center; gap: 10px;
  padding: 14px 26px; border-radius: var(--radius-sm);
  font-weight: 600; font-size: 0.95rem;
  transition: transform var(--dur) var(--ease), box-shadow var(--dur) var(--ease), background-color var(--dur) var(--ease), color var(--dur) var(--ease);
  white-space: nowrap;
}
.btn svg{ transition: transform var(--dur) var(--ease); width: 16px; height: 16px; }
.btn-primary{ background-color: var(--color-primary); color: #fff; box-shadow: var(--shadow-sm); }
.btn-primary:hover, .btn-primary:focus-visible{
  background-color: var(--color-primary-dark); transform: scale(1.03); box-shadow: var(--shadow-md);
}
.btn-primary:hover svg{ transform: translateX(4px); }
.btn-outline{ background: transparent; color: var(--color-primary); border: 1.5px solid var(--color-primary); }
.btn-outline:hover, .btn-outline:focus-visible{ background: var(--color-primary); color: #fff; transform: scale(1.03); }
.btn-block{ width: 100%; justify-content: center; }

/* --------------------------------------------------------------------------
   7. Header & Navigation
   -------------------------------------------------------------------------- */
.site-header{
  position: sticky; top: 0; z-index: 500;
  background: rgba(255,255,255,0.95);
  border-bottom: 1px solid var(--color-border);
}
.header-inner{ display: flex; align-items: center; justify-content: space-between; gap: 16px; padding-block: 14px; }
.logo{ display: flex; align-items: center; gap: 10px; flex-shrink: 0; }
.logo-img{ display: block; height: 40px; width: auto; transition: transform var(--dur) var(--ease); }
.logo:hover .logo-img{ transform: scale(1.03); }

/* Hamburger — área táctil mínima 44px */
.nav-toggle{
  display: flex; flex-direction: column; justify-content: center; align-items: center; gap: 5px;
  width: 44px; height: 44px; z-index: 60;
  border-radius: var(--radius-sm);
  transition: background-color 0.3s var(--ease);
}
.nav-toggle:hover{ background-color: var(--color-primary-light); }
.nav-toggle span{
  display: block; width: 22px; height: 2.5px;
  background: var(--color-dark); border-radius: 3px;
  transition: transform var(--dur) var(--ease), opacity 0.25s var(--ease), width var(--dur) var(--ease);
}
.nav-toggle[aria-expanded="true"] span:nth-child(1){ transform: translateY(7.5px) rotate(45deg); width: 24px; }
.nav-toggle[aria-expanded="true"] span:nth-child(2){ opacity: 0; }
.nav-toggle[aria-expanded="true"] span:nth-child(3){ transform: translateY(-7.5px) rotate(-45deg); width: 24px; }

/* Backdrop overlay (visible solo en mobile) */
.nav-backdrop{
  position: fixed; inset: 0;
  background: rgba(16,20,31,0.5);
  backdrop-filter: blur(3px);
  opacity: 0; visibility: hidden;
  transition: opacity 0.4s var(--ease), visibility 0.4s var(--ease);
  z-index: 50;
}
.nav-backdrop.is-visible{ opacity: 1; visibility: visible; }

/* Menú mobile — slide desde la derecha */
.main-nav{
  position: fixed;
  top: 0; right: 0; bottom: 0; left: auto;
  width: min(320px, 80vw);
  background: #fff;
  padding: 90px 28px 30px;
  transform: translateX(100%);
  transition: transform 0.5s var(--ease);
  z-index: 55;
  box-shadow: -8px 0 30px rgba(16,20,31,0.15);
  overflow-y: auto;
  -webkit-overflow-scrolling: touch;
}
.main-nav.is-open{ transform: translateX(0); }
.main-nav ul{ display: flex; flex-direction: column; gap: 20px; }
.main-nav a{
  display: inline-block;
  font-weight: 600; color: var(--color-dark); font-size: 1.1rem;
  position: relative; padding-bottom: 6px;
  transition: color var(--dur) var(--ease), transform var(--dur) var(--ease);
}
.main-nav a::after{
  content: ""; position: absolute; left: 0; bottom: -2px;
  width: 0; height: 2px; background: var(--color-primary);
  border-radius: 2px;
  transition: width var(--dur) var(--ease);
}
.main-nav a:hover, .main-nav a:focus-visible{ color: var(--color-primary); transform: translateX(5px); }
.main-nav a:hover::after{ width: 100%; }
.main-nav a.active{ color: var(--color-primary); }
.main-nav a.active::after{ width: 100%; }

@media (min-width:880px){
  .nav-toggle{ display: none; }
  .nav-backdrop{ display: none; }
  .main-nav{ position: static; inset: auto; width: auto; background: none; padding: 0; transform: none; box-shadow: none; transition: none; overflow: visible; }
  .main-nav ul{ flex-direction: row; gap: 34px; align-items: center; }
  .main-nav a:hover{ transform: none; }
}

/* --------------------------------------------------------------------------
   8. Hero
   -------------------------------------------------------------------------- */
.hero{
  position: relative;
  background: linear-gradient(180deg, var(--color-primary-light) 0%, #f7f9fe 100%);
  padding-block: 56px 64px; overflow: hidden;
}
.hero--bg{ background-blend-mode: overlay; }
.hero--bg::before{
  content: "";
  position: absolute;
  top: 0; right: 0; bottom: 0;
  width: min(50%, 540px);
  background-image: inherit;
  background-size: contain;
  background-position: right center;
  background-repeat: no-repeat;
  background-attachment: fixed;
  opacity: 1;
  pointer-events: none;
  z-index: 1;
}
@media (max-width: 899px){ .hero--bg::before{ width: 40%; opacity: 0.5; background-attachment: scroll; } }
@media (max-width: 620px){ .hero--bg::before{ display: none; } }
.hero__content{ position: relative; z-index: 2; }
.hero__content h1{ margin-bottom: 18px; }
.hero__content h1 .accent{ color: var(--color-primary); }
.hero__content p{ font-size: 1.05rem; max-width: 480px; margin-bottom: 26px; }
.hero__media img{
  width: 100%; height: auto; border-radius: var(--radius-lg);
  transition: transform var(--dur) var(--ease), box-shadow var(--dur) var(--ease);
}
.hero__media img:hover{ transform: scale(1.02); box-shadow: var(--shadow-lg); }
.hero--compact{ padding-block: 40px 0; }
.hero--compact .hero__media{ border-radius: 0; overflow: hidden; }
.hero--compact .hero__media img{ border-radius: var(--radius-lg); }

.hero--animate .hero__content > *{
  opacity: 0;
  animation: heroEntry 0.9s var(--ease) forwards;
}
.hero--animate .hero__content > *:nth-child(1){ animation-delay: 0.15s; }
.hero--animate .hero__content > *:nth-child(2){ animation-delay: 0.3s; }
.hero--animate .hero__content > *:nth-child(3){ animation-delay: 0.5s; }
@keyframes heroEntry{ from{ opacity: 0; transform: translateY(30px); } to{ opacity: 1; transform: translateY(0); } }
@keyframes floatUp{ from{ opacity: 0; transform: translateY(30px); } to{ opacity: 1; transform: translateY(0); } }

/* --------------------------------------------------------------------------
   9. Features bar
   -------------------------------------------------------------------------- */
.features-bar{ padding-block: 40px; border-bottom: 1px solid var(--color-border); }
.feature-item{
  display: flex; gap: 16px; align-items: flex-start; flex: 1 1 220px;
  padding: 8px; border-radius: var(--radius-sm); margin: -8px;
  transition: background var(--dur) var(--ease);
}
.feature-item:hover{ background: var(--color-primary-light); }
.feature-item__icon{
  width: 46px; height: 46px; flex-shrink: 0;
  display: flex; align-items: center; justify-content: center;
  border-radius: var(--radius-sm);
  background: var(--color-primary-light); color: var(--color-primary);
  transition: transform var(--dur) var(--ease), background-color var(--dur) var(--ease);
}
.feature-item:hover .feature-item__icon{
  transform: scale(1.08) rotate(-4deg);
  background: var(--color-primary); color: #fff;
}
.feature-item__icon svg{ width: 24px; height: 24px; }
.feature-item h3{ font-size: 0.95rem; margin-bottom: 4px; text-transform: uppercase; letter-spacing: 0.02em; }
.feature-item p{ font-size: 0.88rem; margin: 0; }

/* Desktop: softer feature-bar hover */
@media (min-width:860px){
  .feature-item{ transition: background 0.5s ease; }
  .feature-item__icon{ transition: transform 0.5s cubic-bezier(0.22,1,0.36,1), background-color 0.5s ease; }
  .feature-item:hover .feature-item__icon{ transform: scale(1.12) rotate(-5deg); }
}

/* --------------------------------------------------------------------------
   10. Generic cards
   -------------------------------------------------------------------------- */
.card{
  background: #fff; border: 1px solid var(--color-border);
  border-radius: var(--radius-md); padding: 28px 24px;
  transition: transform var(--dur) var(--ease), box-shadow var(--dur) var(--ease), border-color var(--dur) var(--ease);
}
.card:hover{ transform: scale(1.02); box-shadow: 0 14px 35px rgba(16,20,31,0.1); border-color: transparent; }
.card__icon{
  width: 50px; height: 50px; border-radius: var(--radius-sm);
  display: flex; align-items: center; justify-content: center;
  background: var(--color-primary-light); color: var(--color-primary);
  margin-bottom: 18px;
  transition: transform var(--dur) var(--ease), background-color var(--dur) var(--ease);
}
.card:hover .card__icon{ transform: scale(1.1) rotate(-2deg); background: var(--color-primary); color: #fff; }
.card__icon svg{ width: 26px; height: 26px; }
.card h3{ margin-bottom: 10px; }
.card p{ font-size: 0.92rem; margin: 0; }
.card--check ul{ display: flex; flex-direction: column; gap: 8px; margin-top: 6px; }
.card--check li{ display: flex; gap: 8px; align-items: flex-start; font-size: 0.92rem; color: var(--color-text); }
.card--check li svg{ width: 16px; height: 16px; flex-shrink: 0; margin-top: 4px; color: var(--color-primary); }

/* --------------------------------------------------------------------------
   11. Product line cards (Home)
   -------------------------------------------------------------------------- */
.line-card{
  position: relative; border-radius: var(--radius-md); overflow: hidden;
  background: #fff; border: 1px solid var(--color-border);
  display: flex; flex-direction: column;
  transition: transform var(--dur) var(--ease), box-shadow var(--dur) var(--ease);
}
.line-card:hover{ transform: scale(1.03); box-shadow: 0 24px 50px rgba(16,20,31,0.14); }
.line-card__media{ aspect-ratio: 3 / 4; overflow: hidden; }
.line-card__media img{
  width: 100%; height: 100%; object-fit: cover;
  transition: transform 0.6s var(--ease);
}
.line-card:hover .line-card__media img{ transform: scale(1.06); }
.line-card__body{ padding: 18px 16px 22px; text-align: center; }
.line-card__badge{
  width: 56px; height: 56px; border-radius: 50%;
  margin: -46px auto 12px; display: flex; align-items: center; justify-content: center;
  border: 4px solid #fff; color: #fff; position: relative; z-index: 2;
  box-shadow: var(--shadow-sm);
  transition: transform var(--dur) var(--ease), box-shadow var(--dur) var(--ease);
}
.line-card:hover .line-card__badge{ transform: scale(1.08); box-shadow: 0 8px 24px rgba(0,0,0,0.15); }
.line-card__badge svg{ width: 24px; height: 24px; }
.line-card__body h3{ text-transform: uppercase; font-size: 1rem; letter-spacing: 0.03em; margin-bottom: 8px; }
.line-card__body p{ font-size: 0.85rem; }
.line-card--recovery .line-card__badge{ background: var(--color-recovery); }
.line-card--recovery .line-card__body h3{ color: var(--color-recovery); }
.line-card--cognitive .line-card__badge{ background: var(--color-cognitive); }
.line-card--cognitive .line-card__body h3{ color: var(--color-cognitive); }
.line-card--longevity .line-card__badge{ background: var(--color-longevity); }
.line-card--longevity .line-card__body h3{ color: var(--color-longevity); }
.line-card--metabolic .line-card__badge{ background: var(--color-metabolic); }
.line-card--metabolic .line-card__body h3{ color: var(--color-metabolic); }
.line-card--performance .line-card__badge{ background: var(--color-performance); }
.line-card--performance .line-card__body h3{ color: var(--color-performance); }

/* --------------------------------------------------------------------------
   12. CTA Split + About background
   -------------------------------------------------------------------------- */
.cta-split{ border-radius: var(--radius-lg); overflow: hidden; }
.cta-split .split__media img{ border-radius: var(--radius-lg); box-shadow: var(--shadow-md); }

.about-bg{
  background: url("../BANNERS_&_IMAGES/emed_banner_cabout-us.png") no-repeat;
  background-size: contain;
  background-position-x: right;
  background-color: #d3def0;
  min-height: 300px;
  height: 100%;
  width: 100%;
}
@media (max-width: 899px){ .about-bg{ min-height: 220px; background-size: cover; } }
@media (max-width: 620px){ .about-bg{ min-height: 160px; } }

/* --------------------------------------------------------------------------
   13. Product tabs & filters
   -------------------------------------------------------------------------- */
.line-tabs{ display: flex; flex-wrap: wrap; justify-content: center; gap: 28px; padding-block: 36px; border-bottom: 1px solid var(--color-border); }
.line-tab{
  display: flex; flex-direction: column; align-items: center; gap: 10px;
  background: none; border: none; color: var(--color-text-light);
  font-weight: 700; font-size: 0.78rem; letter-spacing: 0.04em; text-transform: uppercase;
  transition: color var(--dur) var(--ease);
}
.line-tab__icon{
  width: 60px; height: 60px; border-radius: 50%;
  background: #eef1f6; color: #9aa3b2;
  display: flex; align-items: center; justify-content: center;
  transition: all var(--dur) var(--ease);
  border: 3px solid transparent;
}
.line-tab__icon svg{ width: 26px; height: 26px; }
.line-tab:hover .line-tab__icon{ transform: translateY(-3px); }
.line-tab[aria-pressed="true"] .line-tab__icon{ background: var(--tab-color,var(--color-primary)); color: #fff; box-shadow: var(--shadow-sm); }
.line-tab[aria-pressed="true"]{ color: var(--tab-color,var(--color-primary)); }
.line-tab[data-line="recovery"]{ --tab-color: var(--color-recovery); }
.line-tab[data-line="cognitive"]{ --tab-color: var(--color-cognitive); }
.line-tab[data-line="longevity"]{ --tab-color: var(--color-longevity); }
.line-tab[data-line="metabolic"]{ --tab-color: var(--color-metabolic); }
.line-tab[data-line="performance"]{ --tab-color: var(--color-performance); }

.products-layout{ display: grid; grid-template-columns: 1fr; gap: 32px; padding-block: 48px; align-items: start; }
@media (min-width:860px){ .products-layout{ grid-template-columns: 260px 1fr; } }
.filters{ background: #fff; border: 1px solid var(--color-border); border-radius: var(--radius-md); padding: 22px; position: sticky; top: 90px; }
.filters__header{ display: flex; justify-content: space-between; align-items: center; margin-bottom: 16px; }
.filters__header h2{ font-size: 1rem; margin: 0; }
.filters__clear{ font-size: 0.82rem; color: var(--color-primary); font-weight: 600; transition: color var(--dur) var(--ease); }
.filters__clear:hover{ color: var(--color-primary-dark); text-decoration: underline; }
.filters fieldset{ border: none; padding: 0; margin: 0 0 22px; }
.filters legend{ font-size: 0.75rem; font-weight: 700; letter-spacing: 0.06em; text-transform: uppercase; color: var(--color-text-light); margin-bottom: 10px; }
.filters__search{ display: flex; align-items: center; gap: 8px; border: 1px solid var(--color-border); border-radius: var(--radius-sm); padding: 10px 12px; transition: border-color var(--dur) var(--ease); }
.filters__search:focus-within{ border-color: var(--color-primary); }
.filters__search input{ border: none; outline: none; width: 100%; font-size: 0.9rem; background: transparent; }
.filters__search svg{ width: 16px; height: 16px; color: var(--color-text-light); flex-shrink: 0; }
.checkbox-list{ display: flex; flex-direction: column; gap: 10px; }
.checkbox-list label{ display: flex; align-items: center; gap: 10px; font-size: 0.9rem; cursor: pointer; }
.checkbox-list input[type="checkbox"]{ width: 17px; height: 17px; accent-color: var(--color-recovery); cursor: pointer; }
.products-main__head{ display: flex; flex-wrap: wrap; gap: 16px; justify-content: space-between; align-items: flex-end; margin-bottom: 26px; }
.products-main__head h2{ color: var(--color-recovery); margin-bottom: 6px; }
.sort-control{ display: flex; align-items: center; gap: 10px; font-size: 0.85rem; }
.sort-control select{ border: 1px solid var(--color-border); border-radius: var(--radius-sm); padding: 8px 12px; transition: border-color var(--dur) var(--ease); }
.sort-control select:focus{ border-color: var(--color-primary); }
.products-controls{ display: flex; flex-wrap: wrap; align-items: center; gap: 12px; }
.view-toggle{ display: inline-flex; border: 1px solid var(--color-border); border-radius: var(--radius-sm); overflow: hidden; }
.view-btn{ display: inline-flex; align-items: center; justify-content: center; width: 40px; height: 38px; background: #fff; border: none; color: var(--color-text-light); cursor: pointer; transition: all var(--dur) var(--ease); }
.view-btn + .view-btn{ border-left: 1px solid var(--color-border); }
.view-btn.is-active{ background: var(--color-primary); color: #fff; }
.product-grid{ display: grid; grid-template-columns: 1fr; gap: 22px; }
@media (min-width:620px){ .product-grid{ grid-template-columns: repeat(2,1fr); } }
@media (min-width:1000px){ .product-grid{ grid-template-columns: repeat(3,1fr); } }

.product-card{
  background: #fff; border: 1px solid var(--color-border);
  border-radius: var(--radius-md); padding: 20px;
  display: flex; flex-direction: column;
  transition: transform var(--dur) var(--ease), box-shadow var(--dur) var(--ease);
}
.product-card:hover{ transform: scale(1.03); box-shadow: 0 14px 35px rgba(16,20,31,0.1); }
.product-card__media{ display: flex; flex-direction: column; align-items: center; gap: 12px; margin-bottom: 14px; }
.product-card__media img{ width: 180px; max-width: 100%; aspect-ratio: 1/1; object-fit: cover; border-radius: 12px; }
.product-card__body{ display: flex; flex-direction: column; flex: 1; }
.product-card__tag{ font-size: 0.68rem; font-weight: 700; letter-spacing: 0.06em; text-transform: uppercase; color: var(--color-recovery); }
.product-card__vial{ width: 56px; height: 76px; flex-shrink: 0; transition: transform var(--dur) var(--ease); }
.product-card:hover .product-card__vial{ transform: scale(1.05); }
.product-card h3{ font-size: 1.05rem; margin-bottom: 4px; }
.product-card__subtitle{ font-size: 0.85rem; color: var(--color-text-light); margin-bottom: 14px; }
.product-card__label{ font-size: 0.7rem; text-transform: uppercase; letter-spacing: 0.05em; color: var(--color-text-light); margin-bottom: 8px; }
.product-card__tags{ display: flex; flex-wrap: wrap; gap: 8px; margin-top: auto; }
.product-card__tags span{
  border: 1px solid var(--color-recovery); color: var(--color-recovery);
  font-size: 0.78rem; font-weight: 600; padding: 4px 12px;
  border-radius: var(--radius-round);
  transition: all var(--dur) var(--ease);
}
.product-card:hover .product-card__tags span{ background: var(--tag-color, var(--color-recovery)); color: #fbfbfb; transform: translateY(-1px); }

/* List (row) view */
.product-grid.product-grid--list{ grid-template-columns: 1fr; }
.product-grid--list .product-card{ flex-direction: row; align-items: center; gap: 22px; text-align: left; }
.product-grid--list .product-card__media{ flex: 0 0 160px; margin-bottom: 0; }
.product-grid--list .product-card__media img{ width: 160px; }
.product-grid--list .product-card__body{ flex: 1; }

/* --------------------------------------------------------------------------
   14. Contact page
   -------------------------------------------------------------------------- */
.contact-cards{ display: grid; grid-template-columns: 1fr; gap: 20px; }
@media (min-width:780px){ .contact-cards{ grid-template-columns: repeat(3,1fr); } }
.contact-card{ text-align: center; padding: 32px 22px; }
.contact-card .card__icon{ margin-inline: auto; }
.contact-card h3{ margin-bottom: 6px; }
.contact-card p{ font-size: 0.92rem; }
.contact-card a{ color: var(--color-primary); font-weight: 600; transition: color var(--dur) var(--ease); }
.contact-card a:hover{ color: var(--color-primary-dark); text-decoration: underline; }

.message-panel{ display: grid; grid-template-columns: 1fr; gap: 0; border: 1px solid var(--color-border); border-radius: var(--radius-lg); overflow: hidden; background: #fff; }
@media (min-width:860px){ .message-panel{ grid-template-columns: 340px 1fr; } }
.message-panel__intro{ background: var(--color-bg-alt); padding: 40px 32px; position: relative; overflow: hidden; }
.message-panel__intro h2{ font-size: 1.5rem; margin-bottom: 14px; }
.message-panel__intro::after{ content:""; position:absolute; right:-40px; bottom:-40px; width:180px; height:180px; border:2px solid rgba(30,73,226,0.12); border-radius:50%; }
.message-panel__form{ padding: 40px 32px; }
.form-grid{ display: grid; grid-template-columns: 1fr; gap: 18px; }
@media (min-width:560px){ .form-grid{ grid-template-columns: 1fr 1fr; } .form-grid .full{ grid-column: 1/-1; } }
.field{ display: flex; flex-direction: column; gap: 6px; }
.field label{ font-size: 0.8rem; font-weight: 600; color: var(--color-dark); }
.field input, .field select, .field textarea{
  border: 1px solid var(--color-border); border-radius: var(--radius-sm);
  padding: 12px 14px; font-size: 0.92rem; background: #fff;
  transition: border-color var(--dur) var(--ease), box-shadow var(--dur) var(--ease);
}
.field input:focus, .field select:focus, .field textarea:focus{
  border-color: var(--color-primary); box-shadow: 0 0 0 3px var(--color-primary-light); outline: none;
}
.field textarea{ resize: vertical; min-height: 110px; }
.form-note{ font-size: 0.78rem; color: var(--color-text-light); margin-top: 14px; }
.form-note a{ color: var(--color-primary); font-weight: 600; transition: color var(--dur) var(--ease); }
.form-note a:hover{ text-decoration: underline; }

/* --------------------------------------------------------------------------
   15. Footer
   -------------------------------------------------------------------------- */
.site-footer{ background: #fff; border-top: 1px solid var(--color-border); padding-block: 56px 0; }
.footer-grid{ display: grid; grid-template-columns: 1fr; gap: 36px; padding-bottom: 40px; }
@media (min-width:700px){ .footer-grid{ grid-template-columns: 1.4fr 1fr 1fr 1fr; } }
.footer-brand .logo{ margin-bottom: 14px; }
.footer-brand p{ font-size: 0.9rem; max-width: 260px; }
.footer-col h3{ font-size: 0.82rem; text-transform: uppercase; letter-spacing: 0.06em; margin-bottom: 16px; color: var(--color-dark); }
.footer-col ul{ display: flex; flex-direction: column; gap: 10px; }
.footer-col a{ font-size: 0.92rem; color: var(--color-text); transition: color var(--dur) var(--ease), padding-left var(--dur) var(--ease); }
.footer-col a:hover{ color: var(--color-primary); padding-left: 4px; }
.footer-contact li{ display: flex; align-items: center; gap: 10px; font-size: 0.92rem; }
.footer-contact svg{ width: 18px; height: 18px; color: var(--color-primary); flex-shrink: 0; }
.footer-bottom{ border-top: 1px solid var(--color-border); padding-block: 20px; display: flex; flex-wrap: wrap; gap: 12px; justify-content: space-between; align-items: center; font-size: 0.82rem; color: var(--color-text-light); }
.footer-legal{ display: flex; gap: 18px; }
.footer-legal a{ transition: color var(--dur) var(--ease); }
.footer-legal a:hover{ color: var(--color-primary); text-decoration: underline; }

/* --------------------------------------------------------------------------
   16. Molecule decoration
   -------------------------------------------------------------------------- */
.molecule-figure img{
  filter: drop-shadow(0 20px 30px rgba(30,73,226,0.15));
  animation: floatSlow 6s ease-in-out infinite;
}
@keyframes floatSlow{ 0%,100%{ transform: translateY(0); } 50%{ transform: translateY(-14px); } }

/* --------------------------------------------------------------------------
   17. Scroll Reveal
   -------------------------------------------------------------------------- */
.reveal{ opacity: 0; transition: opacity 1s var(--ease), transform 1s var(--ease); }
.reveal.is-visible{ opacity: 1; transform: translate(0) scale(1); }
.reveal-up{ transform: translateY(50px); }
.reveal-down{ transform: translateY(-50px); }
.reveal-left{ transform: translateX(-50px); }
.reveal-right{ transform: translateX(50px); }
.reveal-scale{ transform: scale(0.94); }

/* --------------------------------------------------------------------------
   18. Legal Modal
   -------------------------------------------------------------------------- */
.legal-modal-overlay{
  position: fixed; inset: 0; z-index: 8500;
  background: rgba(16,20,31,0.6); backdrop-filter: blur(4px);
  display: flex; align-items: center; justify-content: center;
  opacity: 0; pointer-events: none;
  transition: opacity 0.4s cubic-bezier(0.16,1,0.3,1);
  padding: 20px;
}
.legal-modal-overlay.is-open{ opacity: 1; pointer-events: auto; }
.legal-modal-box{
  background: #fff; border-radius: 18px;
  max-width: 680px; width: 100%; max-height: 85vh;
  display: flex; flex-direction: column;
  box-shadow: 0 30px 70px rgba(16,20,31,0.25);
  transform: translateY(28px) scale(0.95);
  transition: transform 0.45s cubic-bezier(0.16,1,0.3,1);
}
.legal-modal-overlay.is-open .legal-modal-box{
  transform: translateY(0) scale(1);
}
.legal-modal-header{
  display: flex; align-items: center; justify-content: space-between;
  padding: 22px 28px 14px;
  border-bottom: 1px solid var(--color-border);
  flex-shrink: 0;
}
.legal-modal-header h2{
  font-size: 1.2rem; margin: 0; color: var(--color-dark);
}
.legal-modal-close{
  width: 36px; height: 36px; border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
  background: var(--color-bg-alt); border: none;
  font-size: 22px; color: var(--color-text); cursor: pointer;
  transition: background 0.3s ease, color 0.3s ease;
}
.legal-modal-close:hover{ background: var(--color-primary-light); color: var(--color-primary); }
.legal-modal-body{
  padding: 20px 28px 28px;
  overflow-y: auto; flex: 1;
  -webkit-overflow-scrolling: touch;
}
.legal-modal-body h1{ font-size: 1.3rem; margin-bottom: 6px; }
.legal-modal-body h2{ font-size: 1.05rem; color: var(--color-primary); margin: 20px 0 8px; }
.legal-modal-body p{ font-size: 0.9rem; margin-bottom: 12px; }
.legal-modal-body ul{ padding-left: 20px; margin-bottom: 12px; }
.legal-modal-body li{ font-size: 0.9rem; margin-bottom: 6px; }
.legal-modal-body .last-updated{ font-size: 0.78rem; color: var(--color-text-light); margin-bottom: 18px; }
.legal-modal-footer{
  padding: 14px 28px; border-top: 1px solid var(--color-border);
  display: flex; justify-content: flex-end; flex-shrink: 0;
}

/* --------------------------------------------------------------------------
   19. Back to Top Button
   -------------------------------------------------------------------------- */
.back-to-top{
  position: fixed;
  bottom: 82px; right: 32px;
  z-index: 700;
  width: 48px; height: 48px;
  border-radius: 50%;
  background: var(--color-primary);
  color: #fff;
  display: flex; align-items: center; justify-content: center;
  box-shadow: var(--shadow-md);
  opacity: 0; visibility: hidden;
  transform: translateY(16px) scale(0.9);
  transition: opacity 0.4s var(--ease), visibility 0.4s var(--ease), transform 0.4s var(--ease), background-color 0.4s var(--ease), box-shadow 0.4s var(--ease);
}
.back-to-top.is-visible{ opacity: 1; visibility: visible; transform: translateY(0) scale(1); }
.back-to-top:hover, .back-to-top:focus-visible{
  background: var(--color-primary-dark);
  transform: translateY(-3px) scale(1.05);
  box-shadow: var(--shadow-lg);
}
.back-to-top:focus-visible{
  outline: 3px solid var(--color-primary);
  outline-offset: 3px;
}
.back-to-top svg{
  width: 22px; height: 22px;
  transition: transform 0.4s var(--ease);
}
.back-to-top:hover svg{ transform: translateY(-2px); }
@media (max-width: 560px){
  .back-to-top{ bottom: 20px; right: 20px; width: 44px; height: 44px; }
}

/* --------------------------------------------------------------------------
   19. Desktop Enhancements (≥860px)
   Suavizado premium con curvas easeOutExpo más extendidas.
   -------------------------------------------------------------------------- */
@media (min-width:860px){
  /* Variables overrides: slower, airier feel */
  :root{ --ease-desktop: cubic-bezier(0.16, 1, 0.3, 1); }

  /* Buttons — 0.6s easeOutExpo, bigger scale */
  .btn{
    transition: transform 0.6s cubic-bezier(0.16,1,0.3,1),
                box-shadow 0.6s cubic-bezier(0.16,1,0.3,1),
                background-color 0.6s ease,
                color 0.6s ease !important;
  }
  .btn svg{ transition: transform 0.6s cubic-bezier(0.16,1,0.3,1) !important; }
  .btn-primary:hover, .btn-primary:focus-visible,
  .btn-outline:hover, .btn-outline:focus-visible{
    transform: scale(1.05) !important;
    transition: transform 0.6s cubic-bezier(0.16,1,0.3,1),
                box-shadow 0.6s cubic-bezier(0.16,1,0.3,1),
                background-color 0.6s ease !important;
  }
  .btn-primary:hover svg{ transform: translateX(6px) !important; }

  /* Header shadow — smoother fade-in/out on scroll */
  .site-header{
    transition: box-shadow 0.8s cubic-bezier(0.16,1,0.3,1),
                border-bottom-color 0.8s ease,
                background-color 0.8s ease;
  }

  /* Hero media — subtle lift + glow */
  .hero__media img{
    transition: transform 0.6s cubic-bezier(0.16,1,0.3,1),
                box-shadow 0.6s ease !important;
    will-change: transform;
  }
  .hero__media img:hover{
    transform: scale(1.04);
    box-shadow: 0 28px 55px rgba(16,20,31,0.18);
  }

  /* Features bar — icon pop */
  .feature-item{ transition: background 0.6s ease; }
  .feature-item__icon{
    transition: transform 0.6s cubic-bezier(0.16,1,0.3,1),
                background-color 0.6s ease !important;
    will-change: transform;
  }
  .feature-item:hover .feature-item__icon{
    transform: scale(1.13) rotate(-5deg) !important;
  }

  /* Generic cards — floating lift */
  .card{
    transition: transform 0.6s cubic-bezier(0.16,1,0.3,1),
                box-shadow 0.6s cubic-bezier(0.16,1,0.3,1),
                border-color 0.6s ease !important;
    will-change: transform;
  }
  .card:hover{
    transform: scale(1.025);
    box-shadow: 0 20px 45px rgba(16,20,31,0.14);
  }
  .card__icon{
    transition: transform 0.6s cubic-bezier(0.16,1,0.3,1),
                background-color 0.6s ease !important;
    will-change: transform;
  }
  .card:hover .card__icon{
    transform: scale(1.15) rotate(-4deg) !important;
  }

  /* Product cards — prominent lift */
  .product-card{
    transition: transform 0.6s cubic-bezier(0.16,1,0.3,1),
                box-shadow 0.6s cubic-bezier(0.16,1,0.3,1) !important;
    will-change: transform;
  }
  .product-card:hover{
    transform: scale(1.04) !important;
    box-shadow: 0 24px 50px rgba(16,20,31,0.16);
  }

  /* Product line cards (index) — dramatic zoom */
  .line-card{
    transition: transform 0.6s cubic-bezier(0.16,1,0.3,1),
                box-shadow 0.6s cubic-bezier(0.16,1,0.3,1) !important;
    will-change: transform;
  }
  .line-card:hover{
    transform: scale(1.045) !important;
    box-shadow: 0 30px 65px rgba(16,20,31,0.2);
  }
  .line-card__media img{
    transition: transform 0.8s cubic-bezier(0.16,1,0.3,1) !important;
  }
  .line-card:hover .line-card__media img{
    transform: scale(1.09) !important;
  }

  /* Back to top — gentler pop */
  .back-to-top{
    transition: opacity 0.5s cubic-bezier(0.16,1,0.3,1),
                visibility 0.5s cubic-bezier(0.16,1,0.3,1),
                transform 0.5s cubic-bezier(0.16,1,0.3,1),
                background-color 0.5s ease,
                box-shadow 0.5s ease !important;
  }
  .back-to-top:hover, .back-to-top:focus-visible{
    transform: translateY(-4px) scale(1.08) !important;
  }

  /* Hero entry — softer, cinematic stagger for desktop */
  .hero--animate .hero__content > *{
    animation: heroEntryDesktop 1.1s cubic-bezier(0.16,1,0.3,1) forwards !important;
  }
  .hero--animate .hero__content > *:nth-child(1){ animation-delay: 0.0s !important; }
  .hero--animate .hero__content > *:nth-child(2){ animation-delay: 0.15s !important; }
  .hero--animate .hero__content > *:nth-child(3){ animation-delay: 0.35s !important; }
  @keyframes heroEntryDesktop{
    0%{ opacity: 0; transform: translateY(40px); filter: blur(3px); }
    60%{ opacity: 0.9; transform: translateY(3px); filter: blur(0); }
    100%{ opacity: 1; transform: translateY(0); filter: blur(0); }
  }

  /* Product tabs — smoother color swap */
  .line-tab__icon{
    transition: all 0.6s cubic-bezier(0.16,1,0.3,1) !important;
  }

  /* Footer links — gentle slide + color */
  .footer-col a{
    transition: color 0.5s cubic-bezier(0.16,1,0.3,1),
                padding-left 0.5s cubic-bezier(0.16,1,0.3,1) !important;
  }
  .footer-col a:hover{
    color: var(--color-primary);
    padding-left: 6px !important;
  }
  .footer-legal a{
    transition: color 0.5s cubic-bezier(0.16,1,0.3,1) !important;
  }
  .footer-legal a:hover{
    color: var(--color-primary);
    text-decoration: underline;
  }
}

/* --------------------------------------------------------------------------
   20. Reduced motion
   -------------------------------------------------------------------------- */
@media (prefers-reduced-motion: reduce){
  *{ animation-duration: 0.001ms !important; animation-iteration-count: 1 !important; transition-duration: 0.001ms !important; scroll-behavior: auto !important; }
  #preloader .spinner{ animation-duration: 0.9s !important; animation-iteration-count: infinite !important; }
}