/* ============================================
   HUMAX — Design System 2.0
   ============================================ */

/* --- Google Fonts --- */
@import url('https://fonts.googleapis.com/css2?family=Lato:ital,wght@0,700;0,900;1,700&family=Inter:wght@300;400;500;600&display=swap');

/* --- Tokens (Colores de Manual) --- */
:root {
  --c-dark:     #1A303C;
  --c-navy:     #315883;
  --c-sky:      #84C4F0;
  --c-bg:       #F5F2EE;
  --c-white:    #ffffff;
  --c-muted:    #5a6b7a;
  --c-border:   #e2ddd8;

  --grad-dark:  linear-gradient(160deg, rgba(26,48,60,0.85) 0%, rgba(49,88,131,0.65) 100%);
  
  --ff-head: 'Lato', Arial, sans-serif;
  --ff-body: 'Inter', system-ui, sans-serif;

  --radius-sm: 8px;
  --radius-md: 16px;
  --radius-lg: 24px;
  --radius-full: 999px;

  --shadow-sm: 0 4px 12px rgba(26,48,60,0.05);
  --shadow-md: 0 12px 32px rgba(26,48,60,0.08);
  --shadow-lg: 0 24px 64px rgba(26,48,60,0.12);

  --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  --nav-h: 80px;
}

/* --- Reset --- */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { font-size: 16px; scroll-behavior: smooth; }
body {
  font-family: var(--ff-body);
  color: var(--c-dark);
  background: var(--c-bg); /* Fondo general beige claro */
  line-height: 1.6;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}
body.loading { overflow: hidden; }

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

/* --- Utils --- */
.container { max-width: 1200px; margin: 0 auto; padding: 0 1.5rem; }
.container--narrow { max-width: 860px; }
.text-center { text-align: center; }
.mx-auto { margin-left: auto; margin-right: auto; }
.mb-8 { margin-bottom: 2rem; }
.mb-12 { margin-bottom: 3rem; }
.mb-16 { margin-bottom: 4rem; }
.mt-4 { margin-top: 1rem; }
.mt-8 { margin-top: 2rem; }
.mt-16 { margin-top: 4rem; }
.bg-white { background: var(--c-white); }
.border-radius-md { border-radius: var(--radius-md); }
.box-shadow-sm { box-shadow: var(--shadow-sm); }
.px-4 { padding-left: 1rem; padding-right: 1rem; }
.py-8 { padding-top: 2rem; padding-bottom: 2rem; }

/* --- Buttons --- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.8rem 1.8rem;
  border-radius: var(--radius-full);
  font-family: var(--ff-body);
  font-size: 0.95rem;
  font-weight: 600;
  cursor: pointer;
  border: none;
  transition: transform var(--transition), box-shadow var(--transition), background var(--transition), color var(--transition);
}
.btn:hover { transform: translateY(-2px); }
.btn:active { transform: translateY(0); }

.btn--whatsapp {
  background: #25D366; color: #fff;
  box-shadow: 0 4px 20px rgba(37, 211, 102, 0.4);
}
.btn--whatsapp:hover { background: #1fba59; box-shadow: 0 8px 30px rgba(37, 211, 102, 0.5); }
.btn--large { padding: 1.1rem 2.4rem; font-size: 1.1rem; }

.btn--primary {
  background: var(--c-navy); color: #fff;
}
.btn--primary:hover { background: var(--c-dark); }

.btn--white { background: var(--c-white); color: var(--c-dark); }
.btn--white:hover { box-shadow: var(--shadow-md); }

.btn--outline-light {
  background: transparent; color: #fff;
  border: 1.5px solid rgba(255,255,255,0.6);
}
.btn--outline-light:hover { background: #fff; color: var(--c-navy); border-color: #fff; }

/* ============================================
   NAVEGACIÓN
   ============================================ */
.nav {
  position: fixed; top: 0; left: 0; right: 0; z-index: 100;
  height: var(--nav-h);
  transition: background var(--transition), box-shadow var(--transition);
}
.nav__container {
  max-width: 1400px; margin: 0 auto; height: 100%;
  display: flex; align-items: center; justify-content: space-between;
  padding: 0 2rem;
}
.nav--scrolled {
  background: rgba(255,255,255,0.92);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  box-shadow: var(--shadow-sm);
}
.nav__brand { display: flex; align-items: center; }
.nav__logo { height: 26px; transition: opacity var(--transition); }
.nav__logo:hover { opacity: 0.8; }
.nav__logo--mono { display: block; }
.nav__logo--pos  { display: none; }
.nav--scrolled .nav__logo--mono { display: none; }
.nav--scrolled .nav__logo--pos  { display: block; }

.nav__links { display: flex; gap: 2.5rem; align-items: center; }
.nav__link {
  font-size: 0.9rem; font-weight: 500;
  color: rgba(255,255,255,0.85); transition: color var(--transition);
}
.nav__link:hover { color: #fff; }
.nav--scrolled .nav__link { color: var(--c-muted); }
.nav--scrolled .nav__link:hover { color: var(--c-navy); }

/* Nav button states inside scrolled */
.nav--scrolled .btn--outline-light {
  border-color: var(--c-navy); color: var(--c-navy);
}
.nav--scrolled .btn--outline-light:hover {
  background: var(--c-navy); color: #fff;
}

/* Mobile Toggles */
.nav__toggle {
  display: none; background: transparent; border: none;
  width: 32px; height: 24px; cursor: pointer;
  flex-direction: column; justify-content: space-between;
}
.nav__toggle span { width: 100%; height: 2px; background: #fff; transition: var(--transition); }
.nav--scrolled .nav__toggle span { background: var(--c-navy); }

/* ============================================
   MOBILE MENU
   ============================================ */
.mobile-menu {
  position: fixed; inset: 0; width: 100vw; height: 100vh; z-index: 99;
  background: var(--c-bg); /* Fondo más agradable para menú abierto */
  padding: calc(var(--nav-h) + 3rem) 2rem 3rem;
  opacity: 0; pointer-events: none; visibility: hidden;
  transition: all 0.4s cubic-bezier(0.77, 0, 0.175, 1);
  display: flex; flex-direction: column; align-items: center; justify-content: flex-start;
}
.mobile-menu.is-active { opacity: 1; pointer-events: auto; visibility: visible; }
.mobile-menu__nav { display: flex; flex-direction: column; gap: 1.5rem; text-align: center; width: 100%; }
.mobile-menu__link {
  font-family: var(--ff-head); font-size: 2rem; font-weight: 700;
  color: var(--c-dark); padding: 0.5rem 0;
}

/* ============================================
   SECTIONS
   ============================================ */
.section { padding: 7rem 0; background: var(--c-bg); }
.section--alt { background: var(--c-white); }

.section__header { margin-bottom: 4rem; text-align: center; }
.section__tag {
  display: inline-block; font-size: 0.8rem; font-weight: 700;
  text-transform: uppercase; letter-spacing: 0.15em;
  color: var(--c-navy); margin-bottom: 1rem;
}
.section__title {
  font-family: var(--ff-head); font-size: clamp(2rem, 4vw, 3.5rem);
  font-weight: 900; color: var(--c-dark); line-height: 1.1; margin-bottom: 1.2rem;
}
.section__lead {
  font-size: 1.15rem; color: var(--c-muted); font-weight: 400; max-width: 600px; margin: 0 auto;
}

/* ============================================
   HERO
   ============================================ */
.hero {
  position: relative; height: 100vh; min-height: 600px;
  display: flex; align-items: center; justify-content: center;
  margin-top: calc(-1 * var(--nav-h)); padding-top: var(--nav-h);
}
.hero__bg-wrapper { position: absolute; inset: 0; overflow: hidden; }
.hero__bg {
  width: 100%; height: 100%; object-fit: cover;
  transform: scale(1.05); animation: kenburns 15s ease-out infinite alternate;
}
@keyframes kenburns { 0% { transform: scale(1.05); } 100% { transform: scale(1.1); } }
.hero__overlay { position: absolute; inset: 0; background: rgba(0, 0, 0, 0.5); }
.hero__content { position: relative; z-index: 10; text-align: center; max-width: 900px; }
.hero__title {
  font-family: var(--ff-head); font-size: clamp(3rem, 6vw, 5rem);
  font-weight: 900; color: #fff; line-height: 1.05; margin-bottom: 1.5rem;
  text-shadow: 0 4px 16px rgba(0,0,0,0.2);
}
.hero__desc {
  font-size: clamp(1.1rem, 2vw, 1.4rem); color: rgba(255,255,255,0.9); font-weight: 400; margin-bottom: 3rem; text-shadow: 0 2px 8px rgba(0,0,0,0.1);
}

/* ============================================
   POR QUÉ HUMAX (VALUE PROPS)
   ============================================ */
.props-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 2rem; margin-bottom: 5rem; }
.props-grid-unified { display: grid; grid-template-columns: 1fr 1fr; gap: 2rem; margin-top: 3rem; text-align: left; }
.prop-card {
  background: var(--c-white); padding: 3rem 2rem; border-radius: var(--radius-lg);
  box-shadow: var(--shadow-sm); transition: transform var(--transition), box-shadow var(--transition);
}
.props-grid .prop-card { text-align: center; } /* Old grid center-aligned */
.props-grid-unified .prop-card { padding: 2.5rem; border: 1px solid var(--c-border); }
.prop-card:hover { transform: translateY(-5px); box-shadow: var(--shadow-md); }
.prop-card__icon {
  width: 64px; height: 64px; border-radius: 50%; background: rgba(132,196,240,0.15);
  display: flex; align-items: center; justify-content: center; margin: 0 auto 1.5rem;
}
.prop-card__icon svg { width: 32px; height: 32px; color: var(--c-sky); }
.prop-card__title { font-family: var(--ff-head); font-size: 1.4rem; color: var(--c-navy); margin-bottom: 1rem; }
.prop-card__desc { color: var(--c-muted); font-size: 1rem; line-height: 1.6; }

/* ============================================
   TABS GLOBALES (FAQ)
   ============================================ */
.tabs-nav {
  display: flex; justify-content: center; gap: 0.5rem; background: var(--c-white); padding: 0.5rem;
  border-radius: var(--radius-full); box-shadow: var(--shadow-sm); margin-bottom: 2rem; flex-wrap: wrap;
}
.tabs-nav--center { background: transparent; box-shadow: none; border-bottom: 2px solid var(--c-border); border-radius: 0; }
.tab-btn {
  padding: 0.8rem 2rem; border: none; background: transparent; font-family: var(--ff-body);
  font-size: 1rem; font-weight: 600; color: var(--c-muted); border-radius: var(--radius-full);
  cursor: pointer; transition: all 0.2s ease;
}
.tabs-nav--center .tab-btn { border-radius: 0; border-bottom: 2px solid transparent; margin-bottom: -2px; }
.tab-btn:hover { color: var(--c-navy); }
.tab-btn.is-active { background: var(--c-navy); color: #fff; }
.tabs-nav--center .tab-btn.is-active { background: transparent; color: var(--c-navy); border-bottom-color: var(--c-navy); }
.tab-pane {
  display: none; padding: 3rem 4rem; background: var(--c-white); border-radius: var(--radius-lg);
  font-size: 1.15rem; color: var(--c-dark); text-align: center;
  animation: tabFade 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}
.tab-pane.is-active { display: block; }
@keyframes tabFade { from { opacity: 0; transform: translateY(10px); } to { opacity: 1; transform: translateY(0); } }

/* ============================================
   SERVICIOS
   ============================================ */
.services-wrapper { display: grid; grid-template-columns: 1fr 1fr; gap: 2rem; align-items: stretch; }
.services-wrapper--3col { grid-template-columns: repeat(3, 1fr); }

.process-steps { display: grid; grid-template-columns: repeat(4, 1fr); gap: 2rem; margin-top: 4rem; text-align: center; }
.process-step { position: relative; padding-top: 3rem; }
.process-step::before { content: ''; position: absolute; top: 15px; left: 0; right: 0; height: 2px; background: var(--c-sky); opacity: 0.3; z-index: 1; }
.process-step:first-child::before { left: 50%; }
.process-step:last-child::before { right: 50%; }
.process-step__num { position: absolute; top: 0; left: 50%; transform: translateX(-50%); width: 32px; height: 32px; background: var(--c-navy); color: #fff; border-radius: 50%; display: flex; align-items: center; justify-content: center; font-weight: bold; z-index: 2; font-family: var(--ff-head); box-shadow: 0 0 0 4px var(--c-bg); }
.process-step h4 { font-family: var(--ff-head); font-size: 1.15rem; margin-bottom: 0.5rem; color: var(--c-navy); }
.process-step p { font-size: 0.95rem; color: var(--c-muted); line-height: 1.5; }
.service-block {
  padding: 3rem 2.5rem; border-radius: var(--radius-lg); box-shadow: var(--shadow-md);
  border: 1px solid var(--c-border); transition: transform var(--transition);
  display: flex; flex-direction: column;
}
.service-block:hover { transform: translateY(-4px); }
.service-block h3 { font-family: var(--ff-head); font-size: 1.8rem; margin-bottom: 1rem; color: var(--c-navy); }
.service-block p { font-size: 1.05rem; color: var(--c-muted); margin-bottom: 2rem; }
.service-block ul { display: flex; flex-direction: column; gap: 1rem; margin-top: auto; }
.service-block li { display: flex; align-items: flex-start; gap: 0.8rem; color: var(--c-dark); font-weight: 500;}
.service-block li::before { content: ''; width: 8px; height: 8px; background: var(--c-sky); border-radius: 50%; flex-shrink: 0; margin-top: 6px; }

.service-block--dark { background: var(--c-navy); border-color: var(--c-navy); color: #fff; }
.service-block--dark h3 { color: #fff; }
.service-block--dark p { color: rgba(255,255,255,0.8); }
.service-block--dark li { color: rgba(255,255,255,0.9); }
.service-block--dark li::before { background: var(--c-sky); }

/* ============================================
   EQUIPO
   ============================================ */
/* --- Team Duo Layout --- */
.team-duo {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 2rem;
  align-items: start;
  max-width: 820px;
  margin-left: auto;
  margin-right: auto;
}

.team-card {
  background: var(--c-white);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--c-border);
  transition: transform var(--transition), box-shadow var(--transition);
}
.team-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-md); }

/* Lead card (Mercedes) — sutil acento de color */
.team-card--lead {
  border-color: var(--c-sky);
  box-shadow: 0 4px 16px rgba(132, 196, 240, 0.15);
  background: linear-gradient(180deg, rgba(132,196,240,0.06) 0%, var(--c-white) 40%);
}

.team-card__img-wrap { overflow: hidden; }
.team-card__img {
  width: 100%;
  aspect-ratio: 1 / 1;
  object-fit: cover;
  object-position: top center;
  transition: transform 0.6s ease;
}
.team-card:hover .team-card__img { transform: scale(1.03); }

.team-card__body { padding: 1.4rem 1.4rem 1.8rem; }

.team-card__name {
  font-family: var(--ff-head);
  font-size: 1.25rem;
  color: var(--c-dark);
  margin-bottom: 0.3rem;
}

.team-card__credentials {
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--c-navy);
  line-height: 1.4;
  margin-bottom: 1rem;
}
.team-card__body p { font-size: 0.9rem; color: var(--c-muted); line-height: 1.6; }

/* ============================================
   FAQ
   ============================================ */
.accordion { display: flex; flex-direction: column; gap: 1rem; }
.accordion__item { background: var(--c-white); border: 1px solid var(--c-border); border-radius: var(--radius-md); overflow: hidden; }
.accordion__title {
  padding: 1.5rem 2rem; font-family: var(--ff-head); font-size: 1.15rem; font-weight: 700;
  color: var(--c-dark); cursor: pointer; list-style: none; display: flex; justify-content: space-between; align-items: center;
}
.accordion__title::-webkit-details-marker { display: none; }
.accordion__title::after { content: '+'; font-size: 1.5rem; color: var(--c-navy); transition: transform 0.3s; }
.accordion__item[open] .accordion__title::after { transform: rotate(45deg); }
.accordion__content { padding: 0 2rem 1.5rem; font-size: 1rem; color: var(--c-muted); line-height: 1.7; animation: slideDown 0.3s ease-out; }
@keyframes slideDown { from { opacity: 0; transform: translateY(-10px); } to { opacity: 1; transform: translateY(0); } }

/* ============================================
   FOOTER
   ============================================ */
.footer { background: var(--c-dark); padding: 5rem 0 2rem; color: rgba(255,255,255,0.7); border-top: 4px solid var(--c-navy); }
.footer__text { font-size: 1.1rem; max-width: 400px; margin: 0 auto; }
.footer__bottom { border-top: 1px solid rgba(255,255,255,0.1); padding-top: 2.5rem; font-size: 0.85rem; margin-top: 5rem; }

.footer__socials { display: flex; gap: 1.5rem; justify-content: center; margin-bottom: 2.5rem; }
.footer__socials a { color: rgba(255,255,255,0.7); transition: color 0.3s ease, transform 0.3s ease; display: inline-block; }
.footer__socials a:hover { color: #fff; transform: translateY(-4px); }
.footer__socials svg { width: 28px; height: 28px; }

/* ============================================
   ANIMATION CLASSES (JS OBSERVER)
   ============================================ */
[data-animate="fade-up"] { opacity: 0; transform: translateY(30px); transition: opacity 0.8s ease-out, transform 0.8s ease-out; }
[data-animate="fade-up"].is-visible { opacity: 1; transform: translateY(0); }
[data-delay="100"] { transition-delay: 100ms; }
[data-delay="200"] { transition-delay: 200ms; }
[data-delay="300"] { transition-delay: 300ms; }

/* ============================================
   RESPONSIVE
   ============================================ */
@media (max-width: 1024px) {
  .props-grid { grid-template-columns: 1fr; }
  .props-grid-unified { grid-template-columns: 1fr; }
  .manifesto__grid { grid-template-columns: 1fr; }
  .services-wrapper { grid-template-columns: 1fr; }
  .services-wrapper--3col { grid-template-columns: 1fr; }
  
  .process-steps { grid-template-columns: 1fr; gap: 2.5rem; text-align: left; }
  .process-step::before { display: none; }
  .process-step { padding-top: 0; padding-left: 3rem; }
  .process-step__num { top: 0; left: 0; transform: none; width: 28px; height: 28px; font-size: 0.9rem; }
  .process-step h4 { text-align: left; }
  .process-step p { text-align: left; }

  .team-duo { grid-template-columns: 1fr; gap: 2rem; }
}

@media (max-width: 768px) {
  .section { padding: 4.5rem 0; }
  .manifesto { padding: 5rem 0; }
  .footer { padding: 4rem 0 2rem; }

  /* Buttons Optimization for Touch */
  .btn { display: inline-flex; width: max-content; padding: 0.95rem 1.6rem; font-size: 0.95rem; margin: 0 auto; }
  .btn--large { padding: 1.05rem 1.8rem; font-size: 1rem; width: max-content; }
  
  .nav__links, .nav__cta { display: none; }
  .nav__toggle { display: flex; }
  .nav__toggle.is-active span:nth-child(1) { transform: translateY(11px) rotate(45deg); background: var(--c-dark); }
  .nav__toggle.is-active span:nth-child(2) { opacity: 0; }
  .nav__toggle.is-active span:nth-child(3) { transform: translateY(-11px) rotate(-45deg); background: var(--c-dark); }
  
  .hero { min-height: auto; padding-top: calc(var(--nav-h) + 2rem); padding-bottom: 3.5rem; }
  .hero__title { font-size: 2.3rem; margin-bottom: 1rem; }
  .hero__desc { font-size: 1.05rem; margin-bottom: 2rem; }
  
  .prop-card { padding: 2rem 1.5rem; }
  .service-block { padding: 2.5rem 1.5rem; }
  .service-block h3 { font-size: 1.8rem; }

  /* Disable tabs logic on interactive-tabs */
  .interactive-tabs .tabs-nav { display: none; }
  .interactive-tabs .tab-pane { display: block !important; margin-bottom: 1.5rem; padding: 2.5rem 1.5rem; animation: none; }




  .accordion__title { padding: 1.2rem; font-size: 1rem; }
  .accordion__content { padding: 0 1.2rem 1.2rem; }
  
  /* Security tabs to stacked cards on mobile */
  .security-tabs .tabs-nav { display: none; }
  .security-tabs .tabs-body { padding: 0; box-shadow: none; background: transparent; }
  .security-tabs .tab-pane { display: block !important; margin-bottom: 1rem; padding: 2rem 1.5rem; text-align: left; animation: none; }
  
  .tab-content-flex { flex-direction: column; text-align: center; gap: 1rem; }
  .tab-content-flex .text-left { text-align: center; }
  .tab-icon { font-size: 3rem; }
}