/* ===========================================================
   PEPTIX — estilo sobrio / minimalista / editorial
   Paleta: blanco, negro casi puro, gris, rojo de marca (#FD0E11)
   =========================================================== */

:root {
  --color-bg: #ffffff;
  --color-bg-alt: #f7f7f5;
  --color-text: #111111;
  --color-text-soft: #5c5c5c;
  --color-accent: #fd0e11;
  --color-accent-dark: #c40a0d;
  --color-line: #e7e5e0;
  --color-dark: #0b0b0b;

  --font-display: "Fraunces", "Times New Roman", serif;
  --font-body: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;

  --container: 1180px;
  --space-xs: 0.5rem;
  --space-sm: 1rem;
  --space-md: 2rem;
  --space-lg: 4rem;
  --space-xl: 7rem;
}

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

html { scroll-behavior: smooth; overflow-x: hidden; }

body {
  font-family: var(--font-body);
  color: var(--color-text);
  background: var(--color-bg);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

img { max-width: 100%; display: block; }

a { color: inherit; text-decoration: none; }

.container {
  width: 100%;
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 1.5rem;
}

.eyebrow {
  display: inline-block;
  font-size: 0.75rem;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--color-accent);
  font-weight: 600;
  margin-bottom: var(--space-sm);
}

h1, h2, h3 {
  font-family: var(--font-display);
  font-weight: 500;
  line-height: 1.1;
  letter-spacing: -0.01em;
}

h2 {
  font-size: clamp(1.8rem, 3.6vw, 2.75rem);
  margin-bottom: var(--space-sm);
}

p { color: var(--color-text-soft); }

.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  padding: 0.95rem 1.8rem;
  border-radius: 2px;
  font-size: 0.85rem;
  font-weight: 600;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  border: 1px solid transparent;
  cursor: pointer;
  transition: transform 0.25s ease, background 0.25s ease, color 0.25s ease, border-color .25s ease;
  white-space: nowrap;
}

.btn-primary {
  background: var(--color-accent);
  color: #fff;
}
.btn-primary:hover { background: var(--color-accent-dark); transform: translateY(-2px); }

.btn-dark {
  background: var(--color-dark);
  color: #fff;
}
.btn-dark:hover { background: #000; transform: translateY(-2px); }

.btn-outline {
  background: transparent;
  border-color: rgba(255,255,255,0.5);
  color: #fff;
}
.btn-outline:hover { border-color: #fff; background: rgba(255,255,255,0.08); }

.btn-outline-dark {
  background: transparent;
  border-color: var(--color-dark);
  color: var(--color-dark);
}
.btn-outline-dark:hover { background: var(--color-dark); color: #fff; }

.btn svg { width: 18px; height: 18px; flex-shrink: 0; }

/* ---------- Header ---------- */
.site-header {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 500;
  background: rgba(255,255,255,0);
  transition: background 0.3s ease, box-shadow 0.3s ease, backdrop-filter .3s ease;
}
.site-header.is-scrolled {
  background: rgba(255,255,255,0.92);
  backdrop-filter: blur(10px);
  box-shadow: 0 1px 0 var(--color-line);
}

.site-header .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 84px;
}

.logo img { height: 26px; width: auto; transition: filter .3s ease; }
.site-header:not(.is-scrolled) .logo img.logo-dark { display: none; }
.site-header.is-scrolled .logo img.logo-light { display: none; }

.nav-links {
  display: flex;
  align-items: center;
  gap: var(--space-lg);
  list-style: none;
}

.nav-links a {
  font-size: 0.82rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  font-weight: 600;
  color: #fff;
  position: relative;
  padding-bottom: 4px;
  transition: color .3s ease;
}
.site-header.is-scrolled .nav-links a { color: var(--color-text); }

.nav-links a::after {
  content: "";
  position: absolute;
  left: 0; bottom: 0;
  height: 2px; width: 0;
  background: var(--color-accent);
  transition: width .3s ease;
}
.nav-links a:hover::after { width: 100%; }

.header-actions { display: flex; align-items: center; gap: var(--space-md); }

.header-cta { font-size: 0.75rem; padding: 0.75rem 1.4rem; }

.nav-toggle {
  display: none;
  background: none;
  border: none;
  width: 32px; height: 22px;
  position: relative;
  cursor: pointer;
  z-index: 600;
}
.nav-toggle span {
  position: absolute; left: 0; right: 0; height: 2px;
  background: #fff; transition: all .3s ease;
}
.site-header.is-scrolled .nav-toggle span { background: var(--color-text); }
.nav-toggle span:nth-child(1) { top: 0; }
.nav-toggle span:nth-child(2) { top: 50%; transform: translateY(-50%); }
.nav-toggle span:nth-child(3) { bottom: 0; }

body.menu-open .nav-toggle span:nth-child(1) { transform: translateY(10px) rotate(45deg); background:#111; }
body.menu-open .nav-toggle span:nth-child(2) { opacity: 0; }
body.menu-open .nav-toggle span:nth-child(3) { transform: translateY(-10px) rotate(-45deg); background:#111; }

/* ---------- Scroll progress ---------- */
.scroll-progress {
  position: fixed;
  top: 0; left: 0; right: 0;
  height: 3px;
  z-index: 900;
  background: transparent;
  pointer-events: none;
}
.scroll-progress span {
  display: block;
  height: 100%;
  width: 0%;
  background: var(--color-accent);
  transition: width 0.1s linear;
}

/* ---------- Hero slider ---------- */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: flex-end;
  color: #fff;
  overflow: hidden;
}
.hero-slider {
  position: absolute;
  inset: 0;
  z-index: 0;
}
.hero-slide {
  position: absolute;
  inset: 0;
  opacity: 0;
  transition: opacity 1.4s ease;
}
.hero-slide.is-active {
  opacity: 1;
  z-index: 1;
}
.hero-slide img {
  width: 100%; height: 100%; object-fit: cover;
  transform: scale(1.06);
  animation: heroKenBurns 9s ease-out forwards;
}
@keyframes heroKenBurns {
  from { transform: scale(1.14); }
  to { transform: scale(1.02); }
}
.hero-slider::after {
  content: "";
  position: absolute; inset: 0;
  z-index: 2;
  background: linear-gradient(180deg, rgba(0,0,0,0.4) 0%, rgba(0,0,0,0.18) 40%, rgba(0,0,0,0.8) 100%);
}

.hero-content {
  position: relative;
  z-index: 3;
  width: 100%;
  padding-bottom: var(--space-xl);
  padding-top: calc(var(--space-xl) + 84px);
}

.hero-text {
  display: none;
}
.hero-text.is-active {
  display: block;
  animation: heroTextIn 0.9s ease both;
}
@keyframes heroTextIn {
  from { opacity: 0; transform: translateY(18px); }
  to { opacity: 1; transform: translateY(0); }
}

.hero-title {
  font-size: clamp(2.6rem, 7vw, 5.2rem);
  color: #fff;
  max-width: 14ch;
}
.hero-title em {
  font-style: normal;
  color: var(--color-accent);
}

.hero-sub {
  color: rgba(255,255,255,0.88);
  max-width: 46ch;
  font-size: 1.05rem;
  margin: var(--space-sm) 0 var(--space-md);
}

.hero-actions { position: relative; z-index: 3; display: flex; gap: 1rem; flex-wrap: wrap; margin-top: var(--space-sm); }

.hero-dots {
  position: absolute;
  left: clamp(1.5rem, 8vw, 6rem);
  bottom: calc(var(--space-md) + 0.2rem);
  z-index: 3;
  display: flex;
  gap: 0.6rem;
}
.hero-dot {
  width: 28px; height: 3px;
  background: rgba(255,255,255,0.35);
  border: none;
  cursor: pointer;
  padding: 0;
  transition: background .3s ease;
}
.hero-dot.is-active { background: var(--color-accent); }

.hero-scroll {
  position: absolute;
  right: 5.5rem;
  bottom: var(--space-md);
  z-index: 3;
  color: rgba(255,255,255,0.85);
  font-size: 0.7rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  display: flex;
  align-items: center;
  gap: 0.6rem;
  writing-mode: vertical-rl;
}
.hero-scroll::before {
  content: "";
  width: 1px; height: 48px;
  background: rgba(255,255,255,0.5);
}
/* En ventanas muy bajas el texto vertical (270px) ya no cabe sin chocar
   con los botones del hero; se oculta en vez de arriesgar una colisión. */
@media (max-height: 720px) {
  .hero-scroll { display: none; }
}

/* ---------- Marquee strip ---------- */
.marquee {
  background: var(--color-dark);
  color: #fff;
  overflow: hidden;
  white-space: nowrap;
  padding: 0.9rem 0;
}
.marquee-track {
  display: inline-flex;
  animation: marquee 28s linear infinite;
}
.marquee-track span {
  display: inline-flex;
  align-items: center;
  font-size: 0.78rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  padding: 0 2.2rem;
  color: rgba(255,255,255,0.85);
}
.marquee-track span::after {
  content: "—";
  margin-left: 2.2rem;
  color: var(--color-accent);
}
@keyframes marquee {
  from { transform: translateX(0); }
  to { transform: translateX(-50%); }
}

/* ---------- Section generic ---------- */
section { position: relative; }
.section { padding: var(--space-xl) 0; }
.section-alt { background: var(--color-bg-alt); }

.reveal {
  opacity: 0;
  transform: translateY(28px);
  transition: opacity 0.8s ease, transform 0.8s ease;
}
.reveal.is-visible { opacity: 1; transform: translateY(0); }

/* ---------- Nosotros ---------- */
.about-grid {
  display: grid;
  grid-template-columns: 0.9fr 1.1fr;
  gap: clamp(2rem, 6vw, 5rem);
  align-items: center;
}
.about-media { position: relative; overflow: hidden; }
.about-media img { width: 100%; height: 620px; object-fit: cover; }

.parallax-img { transform: scale(1.15); will-change: transform; }
.about-media-tag {
  position: absolute;
  left: -1.25rem;
  bottom: -1.25rem;
  background: var(--color-dark);
  color: #fff;
  padding: 1.4rem 1.6rem;
  max-width: 250px;
  font-family: var(--font-display);
  font-size: 1.05rem;
  line-height: 1.35;
}
.about-media-tag span { color: var(--color-accent); }

.about-text p { font-size: 1.02rem; margin-bottom: var(--space-sm); }
.about-text p:last-of-type { margin-bottom: var(--space-md); }

.about-stats {
  display: grid;
  grid-template-columns: repeat(3, auto);
  gap: var(--space-lg);
  margin-top: var(--space-md);
  padding-top: var(--space-md);
  border-top: 1px solid var(--color-line);
}
.stat-num {
  font-family: var(--font-display);
  font-size: 2.1rem;
  color: var(--color-dark);
}
.stat-label {
  font-size: 0.72rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--color-text-soft);
}

/* ---------- Valores ---------- */
.section-head {
  display: flex;
  justify-content: space-between;
  align-items: flex-end;
  gap: var(--space-md);
  margin-bottom: var(--space-lg);
  flex-wrap: wrap;
}
.section-head p { max-width: 42ch; }

.values-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1px;
  background: var(--color-line);
  border: 1px solid var(--color-line);
}
.value-card {
  background: #fff;
  padding: var(--space-md) var(--space-sm);
  transition: background .3s ease;
}
.value-card:hover { background: var(--color-bg-alt); }
.value-card svg {
  width: 34px; height: 34px;
  stroke: var(--color-accent);
  margin-bottom: var(--space-sm);
}
.value-card h3 {
  font-size: 1.05rem;
  margin-bottom: 0.4rem;
  font-weight: 600;
  font-family: var(--font-body);
}
.value-card p { font-size: 0.9rem; }

/* ---------- Líneas de tratamiento ---------- */
.lines-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: clamp(1.25rem, 3vw, 2rem);
}
.line-card { transition: transform .35s ease; }
.line-card:hover { transform: translateY(-6px); }
.line-media {
  position: relative;
  overflow: hidden;
  height: 320px;
  margin-bottom: var(--space-sm);
}
.line-media img {
  width: 100%; height: 100%; object-fit: cover;
  transition: transform .6s ease;
}
.line-card:hover .line-media img { transform: scale(1.22) !important; }
.line-card h3 {
  font-size: 1.15rem;
  font-weight: 600;
  font-family: var(--font-body);
  margin-bottom: 0.35rem;
}
.line-card p { font-size: 0.92rem; }

.lines-note {
  margin-top: var(--space-lg);
  text-align: center;
  font-size: 0.95rem;
}
.lines-note a { color: var(--color-accent); font-weight: 600; }
.lines-note a:hover { text-decoration: underline; }

/* ---------- Divisor ciencia ---------- */
.lab-band {
  position: relative;
  height: 56vh;
  min-height: 340px;
  overflow: hidden;
}
.lab-band img {
  width: 100%; height: 100%; object-fit: cover;
  filter: grayscale(0.4);
}
.lab-band-overlay {
  position: absolute; inset: 0;
  background: linear-gradient(90deg, rgba(0,0,0,0.78) 0%, rgba(0,0,0,0.45) 55%, rgba(0,0,0,0.25) 100%);
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding: 0 clamp(1.5rem, 8vw, 8rem);
  color: #fff;
}
.lab-band-overlay h2 { color: #fff; max-width: 16ch; margin-bottom: 0; }

/* ---------- Banda WhatsApp ---------- */
.join-band {
  background: var(--color-dark);
  color: #fff;
  position: relative;
  overflow: hidden;
  padding: var(--space-xl) 0;
}
.join-band::after {
  content: "";
  position: absolute; inset: 0;
  background: linear-gradient(180deg, rgba(11,11,11,0.75), rgba(11,11,11,0.95));
  z-index: 0;
}
.join-band .container { position: relative; z-index: 1; }
.join-grid {
  display: grid;
  grid-template-columns: 1.3fr auto;
  gap: var(--space-lg);
  align-items: center;
}
.join-band h2 { color: #fff; }
.join-band p { color: rgba(255,255,255,0.7); max-width: 48ch; }
.join-actions { margin-top: var(--space-md); display: flex; gap: 1rem; flex-wrap: wrap; }

.qr-box {
  background: #fff;
  padding: 1.1rem;
  text-align: center;
  justify-self: end;
}
.qr-box img { width: 150px; height: 150px; object-fit: contain; margin: 0 auto; }
.qr-box span {
  display: block;
  margin-top: 0.7rem;
  font-size: 0.72rem;
  color: var(--color-text-soft);
}
.qr-box .qr-link {
  display: block;
  margin-top: 0.2rem;
  font-size: 0.68rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--color-dark);
  font-weight: 600;
}
.qr-box .qr-link:hover { color: var(--color-accent); }

/* ---------- Contacto ---------- */
.contact-grid {
  display: grid;
  grid-template-columns: 0.85fr 1.15fr;
  gap: clamp(2rem, 6vw, 4rem);
}
.contact-info .eyebrow { color: var(--color-accent); }
.contact-list { margin-top: var(--space-md); list-style: none; }
.contact-list li {
  display: flex;
  gap: 1rem;
  padding: 1.1rem 0;
  border-top: 1px solid var(--color-line);
  align-items: flex-start;
}
.contact-list li:last-child { border-bottom: 1px solid var(--color-line); }
.contact-list svg { width: 22px; height: 22px; stroke: var(--color-accent); flex-shrink: 0; margin-top: 2px; }
.contact-list strong { display: block; font-size: 0.72rem; letter-spacing: 0.08em; text-transform: uppercase; color: var(--color-text-soft); margin-bottom: 0.2rem; }
.contact-list p, .contact-list a { color: var(--color-text); font-size: 0.98rem; }

.contact-form {
  margin-top: var(--space-lg);
  padding-top: var(--space-md);
  border-top: 1px solid var(--color-line);
}
.contact-form-title {
  font-family: var(--font-display);
  font-size: 1.1rem;
  color: var(--color-text);
  margin-bottom: var(--space-md);
}
.form-row {
  margin-bottom: 1.1rem;
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
}
.form-row label {
  font-size: 0.72rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--color-text-soft);
  font-weight: 600;
}
.form-row input,
.form-row select,
.form-row textarea {
  font-family: var(--font-body);
  font-size: 0.98rem;
  color: var(--color-text);
  border: none;
  border-bottom: 1px solid var(--color-line);
  padding: 0.6rem 0.1rem;
  background: transparent;
  transition: border-color .25s ease;
}
.form-row input:focus,
.form-row select:focus,
.form-row textarea:focus {
  outline: none;
  border-bottom-color: var(--color-accent);
}
.form-row textarea { resize: vertical; min-height: 70px; }
.contact-form .btn { margin-top: 0.4rem; }
.contact-form-note {
  margin-top: 0.8rem;
  font-size: 0.85rem;
  min-height: 1.2em;
}
.contact-form-note.is-success { color: var(--color-accent-dark); }
.contact-form-note.is-error { color: #b91c1c; }

.map-frame {
  width: 100%;
  height: 100%;
  min-height: 420px;
  border: 1px solid var(--color-line);
  filter: grayscale(1) contrast(1.05);
}

/* ---------- Footer ---------- */
.site-footer {
  background: var(--color-dark);
  color: rgba(255,255,255,0.65);
  padding: var(--space-lg) 0 var(--space-md);
}
.footer-top {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: var(--space-md);
  padding-bottom: var(--space-md);
  border-bottom: 1px solid rgba(255,255,255,0.12);
  margin-bottom: var(--space-md);
}
.footer-top img { height: 24px; }
.footer-nav { display: flex; gap: var(--space-md); list-style: none; flex-wrap: wrap; }
.footer-nav a { font-size: 0.78rem; letter-spacing: 0.05em; text-transform: uppercase; }
.footer-nav a:hover { color: #fff; }
.footer-bottom {
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 0.5rem;
  font-size: 0.78rem;
}
.footer-bottom a:hover { color: var(--color-accent); }

/* ---------- Riel flotante: redes sociales + WhatsApp ---------- */
/* Un solo grupo con el mismo tamaño y color para los 4 íconos (antes el
   de WhatsApp era verde y más grande que el resto; ahora es igual). */
.social-float {
  position: fixed;
  right: 1.5rem;
  bottom: 1.5rem;
  z-index: 400;
  display: flex;
  flex-direction: column;
  gap: 0.6rem;
}
.social-float a {
  width: 44px; height: 44px;
  border-radius: 50%;
  background: var(--color-dark);
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 6px 16px rgba(0,0,0,0.22);
  transition: transform .25s ease, background .25s ease;
  cursor: default;
}
.social-float a:hover { transform: scale(1.08); background: var(--color-accent); }
.social-float svg { width: 19px; height: 19px; fill: #fff; }
.social-float a.wa-float { cursor: pointer; }

/* ---------- Responsive ---------- */
@media (max-width: 980px) {
  .about-grid, .contact-grid { grid-template-columns: 1fr; }
  .about-media img { height: 380px; }
  .values-grid { grid-template-columns: repeat(2, 1fr); }
  .join-grid { grid-template-columns: 1fr; text-align: left; }
  .qr-box { justify-self: start; }
  .map-frame { min-height: 320px; }
  .lines-grid { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 760px) {
  :root { --space-xl: 4.5rem; --space-lg: 2.6rem; }

  .nav-links {
    position: fixed;
    inset: 0;
    background: #fff;
    flex-direction: column;
    justify-content: center;
    gap: var(--space-md);
    transform: translateX(100%);
    transition: transform .35s ease;
  }
  body.menu-open .nav-links { transform: translateX(0); }
  .nav-links a { color: var(--color-text) !important; font-size: 1.1rem; }
  .header-cta { display: none; }
  body.menu-open .header-cta { display: inline-flex; position: fixed; bottom: 2.4rem; left: 50%; transform: translateX(-50%); z-index: 600; }
  .nav-toggle { display: block; }

  .hero-scroll { display: none; }
  .hero-dots { left: 50%; bottom: 1.1rem; transform: translateX(-50%); }
  .values-grid { grid-template-columns: 1fr; }
  .lines-grid { grid-template-columns: 1fr; }
  .line-media { height: 260px; }
  .about-media-tag { position: static; margin-top: 1rem; max-width: 100%; }
  .social-float { right: 1rem; bottom: 1rem; gap: 0.5rem; }
  .social-float a { width: 40px; height: 40px; }
  .social-float svg { width: 17px; height: 17px; }

  /* Centrado general en móvil */
  .hero-content { text-align: center; }
  .hero-title, .hero-sub { margin-left: auto; margin-right: auto; }
  /* El riel fijo de WhatsApp + redes vive en la esquina inferior derecha;
     este padding evita que el botón ancho del hero se meta debajo de él. */
  .hero-actions { justify-content: center; padding-right: 4rem; }

  .section-head { text-align: center; justify-content: center; }
  .section-head > div, .section-head p { margin-left: auto; margin-right: auto; }

  .about-text { text-align: center; }
  .about-text .btn { margin: 0 auto; }
  .about-media-tag { text-align: center; }

  /* Las tres columnas auto no cabían en pantallas angostas y "Excelencia"
     quedaba cortado fuera de la vista. minmax(0,1fr) evita que "Confiabilidad"
     (palabra sin espacios) fuerce a la columna a crecer más allá de su 1fr. */
  .about-stats {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: var(--space-sm);
    justify-items: center;
    text-align: center;
  }
  .stat-num { font-size: 1.3rem; }

  .value-card { text-align: center; }
  .value-card svg { display: block; margin-left: auto; margin-right: auto; }

  .line-card { text-align: center; }

  .join-grid { justify-items: center; }
  .join-band .eyebrow, .join-band h2, .join-band p { text-align: center; }
  .join-band > .container > .join-grid > div:first-child { margin-left: auto; margin-right: auto; }
  .join-actions { justify-content: center; }
  .qr-box { justify-self: center; }

  .contact-info { text-align: center; }
  .contact-info .btn { margin: 0 auto; }
  .contact-list { text-align: left; max-width: 340px; margin-left: auto; margin-right: auto; }
  .contact-form { text-align: left; max-width: 340px; margin-left: auto; margin-right: auto; }
  .contact-form-title { text-align: center; }
  .contact-form .btn { display: flex; width: fit-content; margin: 0.4rem auto 0; }

  .footer-top, .footer-bottom { justify-content: center; text-align: center; }
}