/* =========================================================
   SCI NUTRICIÓN INSTITUCIONAL — ESTILOS PRINCIPALES
   ========================================================= */

/* ---------- RESET ---------- */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  font-family: var(--font-body);
  color: var(--color-gray-900);
  background: var(--color-white);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}
img { max-width: 100%; display: block; }
a { text-decoration: none; color: inherit; }
ul { list-style: none; }
button { font-family: inherit; cursor: pointer; border: none; background: none; }
h1, h2, h3, h4 { font-family: var(--font-display); font-weight: 700; line-height: 1.15; color: var(--color-black); }
:focus-visible { outline: 3px solid var(--color-green); outline-offset: 3px; }

.container {
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 var(--container-pad);
}

.section-pad { padding: var(--space-2xl) 0; }




.logo {
    height: 90px;   /* Tamaño del logo */
    width: auto;
}
.logo1 {
    height: 160px;   /* Tamaño del logo */
    width: auto;
}





.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2xs);
  font-family: var(--font-body);
  font-size: var(--fs-eyebrow);
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--color-green-700);
}
.eyebrow::before {
  content: "";
  width: 22px;
  height: 2px;
  background: var(--color-green);
  display: inline-block;
}

.section-head { max-width: 640px; margin-bottom: var(--space-xl); }
.section-head.center { margin-left: auto; margin-right: auto; text-align: center; }
.section-head h2 { font-size: var(--fs-h2); margin-top: var(--space-xs); }
.section-head p { font-size: var(--fs-lead); color: var(--color-gray-700); margin-top: var(--space-sm); }

/* ---------- BOTONES ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2xs);
  padding: 0.95rem 1.9rem;
  border-radius: var(--radius-pill);
  font-family: var(--font-body);
  font-weight: 700;
  font-size: 0.95rem;
  letter-spacing: 0.01em;
  position: relative;
  overflow: hidden;
  transition: transform var(--transition-fast), box-shadow var(--transition-fast), background var(--transition-fast), color var(--transition-fast);
  white-space: nowrap;
}
.btn:active { transform: translateY(1px) scale(0.98); }

.btn-primary {
  background: var(--color-green);
  color: var(--color-white);
  box-shadow: var(--shadow-green);
}
.btn-primary:hover { background: var(--color-green-700); box-shadow: 0 18px 36px rgba(47,168,79,0.36); transform: translateY(-2px); }

.btn-secondary {
  background: transparent;
  color: var(--color-white);
  border: 1.5px solid rgba(255,255,255,0.7);
}
.btn-secondary:hover { background: rgba(255,255,255,0.12); border-color: var(--color-white); transform: translateY(-2px); }

.btn-outline {
  background: transparent;
  color: var(--color-green-700);
  border: 1.5px solid var(--color-green);
  padding: 0.7rem 1.5rem;
}
.btn-outline:hover { background: var(--color-green); color: var(--color-white); }

.btn-white {
  background: var(--color-white);
  color: var(--color-purple-700);
}
.btn-white:hover { background: var(--color-gray-100); transform: translateY(-2px); }

/* Efecto ripple */
.ripple { position: relative; overflow: hidden; }
.ripple-circle {
  position: absolute;
  border-radius: 50%;
  transform: scale(0);
  background: rgba(255,255,255,0.5);
  animation: ripple-anim 0.6s linear;
  pointer-events: none;
}

/* ---------- HEADER ---------- */
.site-header {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: var(--z-header);
  height: var(--header-height);
  display: flex;
  align-items: center;
  background: transparent;
  transition: background var(--transition-med), box-shadow var(--transition-med), height var(--transition-med);
}
.site-header .container { display: flex; align-items: center; justify-content: space-between; width: 100%; }

.brand { display: flex; align-items: center; gap: var(--space-2xs); }
.brand-mark {
  width: 46px; height: 46px;
  border-radius: 12px;
  background: var(--gradient-brand);
  display: flex; align-items: center; justify-content: center;
  color: var(--color-white);
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 1.05rem;
  letter-spacing: -0.02em;
  flex-shrink: 0;
}
.brand-text { line-height: 1.05; transition: color var(--transition-med); }
.brand-text strong { display: block; font-family: var(--font-display); font-weight: 800; font-size: 1.05rem; color: var(--color-white); }
.brand-text span { display: block; font-size: 0.62rem; font-weight: 600; letter-spacing: 0.12em; color: rgba(255,255,255,0.8); }

.site-header.is-scrolled { background: rgba(255,255,255,0.97); backdrop-filter: blur(10px); box-shadow: var(--shadow-md); height: var(--header-height-scrolled); }
.site-header.is-scrolled .brand-text strong { color: var(--color-black); }
.site-header.is-scrolled .brand-text span { color: var(--color-gray-500); }

.nav-menu { display: flex; align-items: center; gap: var(--space-lg); }
.nav-links { display: flex; align-items: center; gap: var(--space-md); }
.nav-links a {
  font-size: 0.92rem;
  font-weight: 600;
  color: rgba(255,255,255,0.92);
  position: relative;
  padding: 0.4rem 0;
  transition: color var(--transition-fast);
}
.nav-links a::after {
  content: "";
  position: absolute; left: 0; bottom: -2px;
  width: 0; height: 2px;
  background: var(--color-purple);
  transition: width var(--transition-fast);
}
.nav-links a:hover::after, .nav-links a.active::after { width: 100%; }
.site-header.is-scrolled .nav-links a { color: var(--color-gray-900); }
.site-header.is-scrolled .nav-links a:hover { color: var(--color-green-700); }

.nav-cta { display: flex; align-items: center; gap: var(--space-sm); }

.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  width: 32px;
  height: 24px;
  justify-content: center;
  z-index: var(--z-top);
}
.nav-toggle span {
  display: block;
  height: 2.5px;
  width: 100%;
  background: var(--color-white);
  border-radius: 2px;
  transition: transform var(--transition-fast), opacity var(--transition-fast), background var(--transition-fast);
}
.site-header.is-scrolled .nav-toggle span { background: var(--color-black); }
.nav-toggle.is-active span:nth-child(1) { transform: translateY(7.5px) rotate(45deg); }
.nav-toggle.is-active span:nth-child(2) { opacity: 0; }
.nav-toggle.is-active span:nth-child(3) { transform: translateY(-7.5px) rotate(-45deg); }

/* ---------- HERO ---------- */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  overflow: hidden;
  background: var(--color-black);
}
.hero-media {
  position: absolute; inset: 0;
  z-index: 0;
}
.hero-media img {
  width: 100%; height: 100%; object-fit: cover;
  transform: scale(1.08);
  will-change: transform;
}
.hero-media::after {
  content: "";
  position: absolute; inset: 0;
  background: var(--gradient-overlay);
}
.hero .container { position: relative; z-index: 1; padding-top: var(--header-height); }
.hero-content { max-width: 680px; }
.hero-content .eyebrow { color: var(--color-green-500); }
.hero-content .eyebrow::before { background: var(--color-green-500); }
.hero-content h1 {
  font-size: var(--fs-hero);
  color: var(--color-white);
  margin-top: var(--space-sm);
  letter-spacing: -0.02em;
}
.hero-content h1 em { font-style: normal; color: var(--color-green-500); }
.hero-content p {
  font-size: var(--fs-lead);
  color: rgba(255,255,255,0.85);
  margin-top: var(--space-md);
  max-width: 520px;
}
.hero-actions { display: flex; gap: var(--space-sm); flex-wrap: wrap; margin-top: var(--space-lg); }

.hero-scroll {
  position: absolute;
  bottom: var(--space-lg);
  left: 50%;
  transform: translateX(-50%);
  z-index: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-2xs);
  color: rgba(255,255,255,0.7);
  font-size: var(--fs-small);
}
.hero-scroll .mouse {
  width: 24px; height: 38px;
  border: 2px solid rgba(255,255,255,0.6);
  border-radius: 14px;
  position: relative;
}
.hero-scroll .mouse::before {
  content: "";
  position: absolute;
  top: 6px; left: 50%;
  width: 4px; height: 8px;
  background: var(--color-green-500);
  border-radius: 2px;
  transform: translateX(-50%);
  animation: scroll-dot 1.8s infinite;
}

/* ---------- CLIENTES OBJETIVO / TIRA ---------- */
.audience-strip {
  background: var(--color-white);
  border-bottom: 1px solid var(--color-gray-100);
  padding: var(--space-lg) 0;
  margin-top: -1px;
}
.audience-strip .container {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-lg);
  justify-content: space-between;
  align-items: center;
}
.audience-item { display: flex; align-items: center; gap: var(--space-sm); }
.audience-item .icon-wrap {
  width: 46px; height: 46px;
  border-radius: 50%;
  background: var(--color-green-100);
  display: flex; align-items: center; justify-content: center;
  color: var(--color-green-700);
  flex-shrink: 0;
}
.audience-item strong { display: block; font-family: var(--font-display); font-size: 0.98rem; }
.audience-item span { font-size: var(--fs-small); color: var(--color-gray-500); }

/* ---------- SERVICIOS ---------- */
.services { background: var(--color-gray-50); }
.services-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-md);
}
.service-card {
  background: var(--color-white);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  transition: transform var(--transition-med), box-shadow var(--transition-med);
  display: flex;
  flex-direction: column;
}
.service-card:hover { transform: translateY(-10px); box-shadow: var(--shadow-lg); }
.service-media { position: relative; aspect-ratio: 4 / 3; overflow: hidden; }
.service-media img { width: 100%; height: 100%; object-fit: cover; transition: transform var(--transition-slow); }
.service-card:hover .service-media img { transform: scale(1.08); }
.service-tag {
  position: absolute; top: var(--space-sm); left: var(--space-sm);
  background: rgba(20,21,26,0.55);
  backdrop-filter: blur(4px);
  color: var(--color-white);
  font-size: 0.7rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  padding: 0.35rem 0.75rem;
  border-radius: var(--radius-pill);
}
.service-body { padding: var(--space-md); display: flex; flex-direction: column; gap: var(--space-2xs); flex: 1; }
.service-body h3 { font-size: var(--fs-h3); }
.service-body p { color: var(--color-gray-700); font-size: 0.95rem; flex: 1; }
.service-body .btn-outline { align-self: flex-start; margin-top: var(--space-sm); }

/* ---------- CONTADORES ---------- */
.counters {
  background: var(--gradient-purple);
  color: var(--color-white);
}
.counters-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--space-lg);
}
.counter-item { display: flex; align-items: center; gap: var(--space-sm); }
.counter-item .icon-wrap {
  width: 52px; height: 52px;
  border-radius: 50%;
  background: rgba(255,255,255,0.12);
  display: flex; align-items: center; justify-content: center;
  flex-shrink: 0;
}
.counter-number {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(1.6rem, 2.4vw, 2.1rem);
  line-height: 1;
  display: flex;
  align-items: baseline;
  gap: 2px;
}
.counter-item .label { font-size: var(--fs-small); color: rgba(255,255,255,0.85); margin-top: 2px; }

/* ---------- CALIDAD ---------- */
.quality-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--space-md);
}
.quality-card {
  padding: var(--space-lg) var(--space-md);
  border-radius: var(--radius-md);
  border: 1px solid var(--color-gray-100);
  text-align: left;
  transition: border-color var(--transition-fast), box-shadow var(--transition-fast), transform var(--transition-fast);
}
.quality-card:hover { border-color: transparent; box-shadow: var(--shadow-md); transform: translateY(-6px); }
.quality-card .icon-wrap {
  width: 54px; height: 54px;
  border-radius: var(--radius-sm);
  background: var(--color-green-100);
  color: var(--color-green-700);
  display: flex; align-items: center; justify-content: center;
  margin-bottom: var(--space-sm);
}
.quality-card h3 { font-size: 1.05rem; margin-bottom: var(--space-2xs); }
.quality-card p { font-size: 0.92rem; color: var(--color-gray-700); }

/* ---------- SOSTENIBILIDAD ---------- */
.sustain { background: var(--color-green-100); overflow: hidden; }
.sustain .container { display: grid; grid-template-columns: 1fr 1fr; gap: var(--space-2xl); align-items: center; }
.sustain-media { position: relative; border-radius: var(--radius-lg); overflow: hidden; box-shadow: var(--shadow-lg); aspect-ratio: 4/3; }
.sustain-media img { width: 100%; height: 100%; object-fit: cover; }
.sustain-list { display: flex; flex-direction: column; gap: var(--space-sm); margin-top: var(--space-md); }
.sustain-list li { display: flex; gap: var(--space-sm); align-items: flex-start; }
.sustain-list .check {
  width: 26px; height: 26px; border-radius: 50%;
  background: var(--color-green); color: var(--color-white);
  display: flex; align-items: center; justify-content: center; flex-shrink: 0; margin-top: 2px;
}
.sustain-list p { color: var(--color-gray-700); font-size: 0.95rem; }
.sustain-list strong { color: var(--color-black); display: block; }

/* ---------- TESTIMONIOS / CLIENTES ---------- */
.clients { background: var(--color-white); }
.clients-track {
  display: flex;
  gap: var(--space-2xl);
  align-items: center;
  flex-wrap: wrap;
  justify-content: center;
  opacity: 0.75;
}
.clients-track .client-name {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.1rem;
  color: var(--color-gray-500);
  letter-spacing: -0.01em;
}

/* ---------- CTA ---------- */
.cta {
  background: var(--gradient-brand);
  position: relative;
  overflow: hidden;
}
.cta .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-lg);
  flex-wrap: wrap;
  padding-top: var(--space-xl);
  padding-bottom: var(--space-xl);
}
.cta-text h2 { color: var(--color-white); font-size: var(--fs-h2); max-width: 560px; }
.cta-text p { color: rgba(255,255,255,0.85); margin-top: var(--space-2xs); }

/* ---------- FOOTER ---------- */
.site-footer { background: var(--color-black); color: rgba(255,255,255,0.75); }
.footer-top { padding: var(--space-2xl) 0 var(--space-xl); }
.footer-grid {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr 1.2fr;
  gap: var(--space-xl);
}
.footer-brand .brand-text strong { color: var(--color-white); }
.footer-about { margin-top: var(--space-sm); font-size: 0.92rem; color: rgba(255,255,255,0.6); max-width: 320px; }
.footer-social { display: flex; gap: var(--space-2xs); margin-top: var(--space-md); }
.footer-social a {
  width: 40px; height: 40px; border-radius: 50%;
  background: rgba(255,255,255,0.08);
  display: flex; align-items: center; justify-content: center;
  transition: background var(--transition-fast), transform var(--transition-fast);
}
.footer-social a:hover { background: var(--color-green); transform: translateY(-3px); }

.footer-col h4 { color: var(--color-white); font-size: 0.95rem; margin-bottom: var(--space-sm); letter-spacing: 0.02em; }
.footer-col ul { display: flex; flex-direction: column; gap: var(--space-xs); }
.footer-col a { font-size: 0.9rem; color: rgba(255,255,255,0.65); transition: color var(--transition-fast); }
.footer-col a:hover { color: var(--color-green-500); }

.footer-contact li { display: flex; gap: var(--space-xs); align-items: flex-start; margin-bottom: var(--space-sm); font-size: 0.9rem; }
.footer-contact .icon-wrap { color: var(--color-green-500); flex-shrink: 0; margin-top: 2px; }

.footer-bottom {
  border-top: 1px solid rgba(255,255,255,0.1);
  padding: var(--space-md) 0;
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: var(--space-sm);
  font-size: 0.82rem;
  color: rgba(255,255,255,0.45);
}
.footer-bottom a { color: rgba(255,255,255,0.6); }
.footer-bottom a:hover { color: var(--color-green-500); }

/* ---------- FLOTANTES ---------- */
.back-to-top {
  position: fixed;
  right: var(--space-md);
  bottom: var(--space-md);
  width: 48px; height: 48px;
  border-radius: 50%;
  background: var(--color-purple);
  color: var(--color-white);
  display: flex; align-items: center; justify-content: center;
  box-shadow: var(--shadow-md);
  opacity: 0;
  visibility: hidden;
  transform: translateY(10px);
  transition: opacity var(--transition-fast), transform var(--transition-fast), visibility var(--transition-fast), background var(--transition-fast);
  z-index: var(--z-overlay);
}
.back-to-top.is-visible { opacity: 1; visibility: visible; transform: translateY(0); }
.back-to-top:hover { background: var(--color-green); }

.whatsapp-float {
  position: fixed;
  left: var(--space-md);
  bottom: var(--space-md);
  width: 68px; height: 68px;
  border-radius: 50%;
  background: #25D366;
  display: flex; align-items: center; justify-content: center;
  box-shadow: var(--shadow-md);
  z-index: var(--z-overlay);
  transition: transform var(--transition-fast);
}
.whatsapp-float:hover { transform: scale(1.08); }

/* ---------- MOBILE NAV OVERLAY ---------- */
.mobile-nav {
  position: fixed;
  inset: 0;
  background: var(--color-black);
  z-index: var(--z-overlay);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: var(--space-lg);
  opacity: 0;
  visibility: hidden;
  transform: translateY(-16px);
  transition: opacity var(--transition-med), transform var(--transition-med), visibility var(--transition-med);
}




/*======================================
    ICONOS SECCIÓN CALIDAD
=======================================*/

.quality-card .quality-icon{
    width:72px;
    height:72px;
    margin:0 auto 22px;
    display:flex;
    align-items:center;
    justify-content:center;
    border-radius:50%;
    background:linear-gradient(135deg,#1B7F46,#28A745);
    color:#fff;
    font-size:30px;
    box-shadow:0 10px 25px rgba(27,127,70,.25);
    transition:all .35s ease;
}

.quality-card .quality-icon i{
    font-size:30px;
}

.quality-card:hover .quality-icon{
    transform:translateY(-8px) scale(1.08);
    box-shadow:0 18px 35px rgba(27,127,70,.35);
}





.mobile-nav.is-open { opacity: 1; visibility: visible; transform: translateY(0); }
.mobile-nav a { font-family: var(--font-display); font-size: 1.6rem; font-weight: 700; color: var(--color-white); }
.mobile-nav a:hover { color: var(--color-green-500); }