/* ==========================================================================
   Variables y reset
   ========================================================================== */
:root {
  --color-primary: #1652f0;
  --color-primary-dark: #0d3ab5;
  --color-primary-light: #4c7dff;
  --color-navy: #0a1a3c;
  --color-white: #ffffff;
  --color-bg-alt: #f7f8fa;
  --color-text: #1a2333;
  --color-text-muted: #6b7280;
  --color-border: #eaebef;

  --font-base: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Inter', 'Helvetica Neue', Arial, sans-serif;

  --container-width: 1160px;
  --radius: 16px;
  --shadow-sm: 0 2px 10px rgba(10, 26, 60, 0.05);
  --shadow-md: 0 16px 40px rgba(10, 26, 60, 0.10);
  --transition: 0.3s cubic-bezier(0.16, 1, 0.3, 1);
}

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

html {
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-base);
  color: var(--color-text);
  background: var(--color-white);
  line-height: 1.6;
  overflow-x: hidden;
}

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

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

ul {
  list-style: none;
}

.container {
  width: 100%;
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 0 24px;
}

/* ==========================================================================
   Utilidades
   ========================================================================== */
.section {
  padding: 140px 0;
}

.section--alt {
  background: var(--color-bg-alt);
}

.section__label {
  display: inline-block;
  color: var(--color-primary);
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  font-size: 0.8rem;
  margin-bottom: 16px;
}

.section__title {
  font-size: clamp(1.9rem, 3vw, 2.6rem);
  font-weight: 700;
  letter-spacing: -0.01em;
  color: var(--color-navy);
  margin-bottom: 64px;
  max-width: 640px;
}

.btn {
  display: inline-block;
  padding: 14px 30px;
  border-radius: 999px;
  font-weight: 600;
  font-size: 0.98rem;
  letter-spacing: -0.005em;
  border: 1.5px solid transparent;
  cursor: pointer;
  transition: transform var(--transition), box-shadow var(--transition), background var(--transition), color var(--transition);
  text-align: center;
}

.btn--primary {
  background: var(--color-primary);
  color: var(--color-white);
  box-shadow: var(--shadow-sm);
}

.btn--primary:hover {
  background: var(--color-primary-dark);
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}

.btn--secondary {
  background: transparent;
  color: var(--color-primary);
  border-color: var(--color-primary);
}

.btn--secondary:hover {
  background: var(--color-primary);
  color: var(--color-white);
  transform: translateY(-2px);
}

.btn--full {
  width: 100%;
}

/* ==========================================================================
   Header
   ========================================================================== */
.header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  background: rgba(255, 255, 255, 0.9);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid transparent;
  transition: border-color var(--transition), box-shadow var(--transition);
}

.header.is-scrolled {
  border-color: var(--color-border);
  box-shadow: var(--shadow-sm);
}

.header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 76px;
}

.logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 1.5rem;
  font-weight: 900;
  color: var(--color-primary);
  letter-spacing: 0.02em;
}

.logo__mark {
  width: 36px;
  height: 36px;
  border-radius: 10px;
  box-shadow: var(--shadow-sm);
}

.nav {
  display: flex;
  align-items: center;
  gap: 36px;
}

.nav__link {
  font-weight: 500;
  color: var(--color-text);
  font-size: 0.93rem;
  transition: color var(--transition);
}

.nav__link:hover {
  color: var(--color-primary);
}

.nav__link--cta {
  background: var(--color-primary);
  color: var(--color-white);
  padding: 10px 22px;
  border-radius: 999px;
}

.nav__link--cta:hover {
  background: var(--color-primary-dark);
  color: var(--color-white);
}

.menu-toggle {
  display: none;
  flex-direction: column;
  justify-content: space-between;
  width: 26px;
  height: 18px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 0;
}

.menu-toggle span {
  display: block;
  height: 2px;
  width: 100%;
  background: var(--color-navy);
  border-radius: 2px;
  transition: transform var(--transition), opacity var(--transition);
}

.menu-toggle.is-open span:nth-child(1) {
  transform: translateY(8px) rotate(45deg);
}

.menu-toggle.is-open span:nth-child(2) {
  opacity: 0;
}

.menu-toggle.is-open span:nth-child(3) {
  transform: translateY(-8px) rotate(-45deg);
}

/* ==========================================================================
   Hero
   ========================================================================== */
.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  background: linear-gradient(160deg, var(--color-navy) 0%, var(--color-primary-dark) 55%, var(--color-primary) 100%);
  color: var(--color-white);
  position: relative;
  padding-top: 76px;
}

.hero__content {
  max-width: 780px;
}

.hero__eyebrow {
  text-transform: uppercase;
  letter-spacing: 0.14em;
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--color-primary-light);
  margin-bottom: 24px;
}

.hero__logo {
  display: block;
  width: clamp(110px, 13vw, 152px);
  height: auto;
  margin: 0 auto 4px;
  filter: drop-shadow(0 8px 24px rgba(0, 0, 0, 0.3));
}

.hero__title {
  font-size: clamp(3.5rem, 10vw, 6.5rem);
  font-weight: 800;
  letter-spacing: -0.02em;
  margin-bottom: 24px;
}

.hero__tagline {
  font-size: clamp(1.2rem, 2.5vw, 1.6rem);
  font-weight: 600;
  letter-spacing: -0.01em;
  margin-bottom: 14px;
}

.hero__subtitle {
  font-size: 1.05rem;
  font-weight: 400;
  color: rgba(255, 255, 255, 0.75);
  margin-bottom: 48px;
}

.hero__actions {
  display: flex;
  gap: 16px;
  justify-content: center;
  flex-wrap: wrap;
}

.hero .btn--secondary {
  color: var(--color-white);
  border-color: rgba(255, 255, 255, 0.6);
}

.hero .btn--secondary:hover {
  background: var(--color-white);
  color: var(--color-primary-dark);
}

.hero__scroll-indicator {
  position: absolute;
  bottom: 32px;
  left: 50%;
  transform: translateX(-50%);
  width: 26px;
  height: 42px;
  border: 2px solid rgba(255, 255, 255, 0.5);
  border-radius: 999px;
}

.hero__scroll-indicator span {
  display: block;
  width: 4px;
  height: 8px;
  background: var(--color-white);
  border-radius: 999px;
  margin: 6px auto 0;
  animation: scrollDown 1.8s infinite;
}

@keyframes scrollDown {
  0% { transform: translateY(0); opacity: 1; }
  100% { transform: translateY(16px); opacity: 0; }
}

/* ==========================================================================
   Quiénes somos
   ========================================================================== */
.about {
  display: grid;
  grid-template-columns: 1.2fr 1fr;
  gap: 64px;
  align-items: start;
}

.about__pitch {
  font-size: 1.4rem;
  font-weight: 500;
  color: var(--color-navy);
  line-height: 1.6;
  letter-spacing: -0.01em;
  border-left: 2px solid var(--color-primary);
  padding-left: 28px;
}

.about__mission {
  background: var(--color-bg-alt);
  border-radius: var(--radius);
  padding: 36px;
}

.about__mission h3 {
  color: var(--color-primary);
  font-size: 1.1rem;
  margin-bottom: 12px;
}

.about__mission p {
  color: var(--color-text-muted);
}

/* ==========================================================================
   Qué ofrecemos
   ========================================================================== */
.cards {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 12px 32px;
}

.card {
  background: transparent;
  border-radius: var(--radius);
  padding: 32px 28px;
  transition: transform var(--transition), background var(--transition);
}

.card:hover {
  transform: translateY(-4px);
  background: var(--color-white);
  box-shadow: var(--shadow-md);
}

.card__icon {
  color: var(--color-primary);
  margin-bottom: 22px;
}

.card__icon svg {
  width: 30px;
  height: 30px;
  stroke-width: 1.4;
}

.card__title {
  font-size: 1.1rem;
  font-weight: 600;
  letter-spacing: -0.01em;
  color: var(--color-navy);
  margin-bottom: 10px;
}

.card__text {
  color: var(--color-text-muted);
  font-size: 0.95rem;
  line-height: 1.65;
}

/* ==========================================================================
   Sedes
   ========================================================================== */
.map-wrapper {
  margin-bottom: 24px;
}

.sedes-map {
  width: 100%;
  height: 440px;
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  background: var(--color-bg-alt);
}

.sedes-map .leaflet-container {
  cursor: default;
}

.sedes-map .leaflet-marker-icon {
  cursor: pointer;
}

.leaflet-div-icon.map-pin {
  background: transparent;
  border: none;
}

.map-pin__dot {
  display: inline-block;
  width: 16px;
  height: 16px;
  border-radius: 50%;
  background: var(--color-primary);
  border: 3px solid var(--color-white);
  box-shadow: 0 0 0 2px var(--color-primary), var(--shadow-sm);
}

.leaflet-popup-content {
  font-family: var(--font-base);
  font-weight: 600;
  color: var(--color-navy);
}

.locations-legend {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

.location-chip {
  padding: 10px 20px;
  border-radius: 999px;
  border: 1px solid var(--color-border);
  background: var(--color-white);
  color: var(--color-text);
  font-family: inherit;
  font-weight: 600;
  font-size: 0.9rem;
  cursor: pointer;
  transition: border-color var(--transition), color var(--transition), background var(--transition);
}

.location-chip:hover {
  border-color: var(--color-primary);
  color: var(--color-primary);
}

.location-chip.is-active {
  background: var(--color-primary);
  border-color: var(--color-primary);
  color: var(--color-white);
}

/* ==========================================================================
   Equipo fundador
   ========================================================================== */
.team {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
}

.team-member {
  text-align: center;
  background: var(--color-white);
  border-radius: var(--radius);
  padding: 44px 24px;
  box-shadow: var(--shadow-sm);
  transition: transform var(--transition), box-shadow var(--transition);
}

.team-member:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-md);
}

.team-member__avatar {
  position: relative;
  width: 84px;
  height: 84px;
  margin: 0 auto 20px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--color-primary), var(--color-primary-dark));
  color: var(--color-white);
  font-weight: 800;
  font-size: 1.4rem;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
}

.team-member__photo {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.team-member__initials {
  visibility: hidden;
}

.team-member__avatar--fallback .team-member__initials {
  visibility: visible;
}

.team-member__name {
  color: var(--color-navy);
  font-size: 1.1rem;
  font-weight: 600;
  letter-spacing: -0.005em;
  margin-bottom: 6px;
}

.team-member__role {
  color: var(--color-primary);
  font-weight: 600;
  font-size: 0.85rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

/* ==========================================================================
   Testimonios (carrusel automático / arrastrable)
   ========================================================================== */
.testimonials {
  overflow: hidden;
}

.testimonials .section__title {
  margin-bottom: 56px;
}

.testimonials-marquee {
  width: 100%;
  overflow: hidden;
  cursor: grab;
  -webkit-mask-image: linear-gradient(to right, transparent 0, #000 6%, #000 94%, transparent 100%);
  mask-image: linear-gradient(to right, transparent 0, #000 6%, #000 94%, transparent 100%);
}

.testimonials-marquee.is-dragging {
  cursor: grabbing;
}

.testimonials-track {
  display: flex;
  gap: 24px;
  width: max-content;
  padding: 0 24px;
  will-change: transform;
}

.testimonial-card {
  flex: 0 0 auto;
  width: min(380px, 82vw);
  background: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 30px 28px;
  user-select: none;
}

.testimonial-card__quote {
  color: var(--color-text);
  font-size: 1rem;
  line-height: 1.65;
  margin-bottom: 24px;
  min-height: 100px;
}

.testimonial-card__author {
  display: flex;
  align-items: center;
  gap: 14px;
}

.testimonial-card__avatar {
  width: 44px;
  height: 44px;
  border-radius: 50%;
  flex-shrink: 0;
  background: linear-gradient(135deg, var(--color-primary), var(--color-primary-dark));
  color: var(--color-white);
  font-weight: 700;
  font-size: 0.85rem;
  display: flex;
  align-items: center;
  justify-content: center;
}

.testimonial-card__name {
  color: var(--color-navy);
  font-weight: 600;
  font-size: 0.95rem;
}

.testimonial-card__role {
  color: var(--color-text-muted);
  font-size: 0.85rem;
}

/* ==========================================================================
   Únete a la comunidad
   ========================================================================== */
.join {
  background: linear-gradient(160deg, var(--color-primary-dark) 0%, var(--color-navy) 100%);
  color: var(--color-white);
  padding: 140px 0;
}

.join__content {
  max-width: 600px;
  margin: 0 auto;
  text-align: center;
}

.join__title {
  font-size: clamp(1.9rem, 3vw, 2.6rem);
  font-weight: 700;
  letter-spacing: -0.01em;
  margin-bottom: 18px;
}

.join__text {
  color: rgba(255, 255, 255, 0.7);
  margin-bottom: 48px;
}

.join-form {
  display: flex;
  flex-direction: column;
  gap: 16px;
  text-align: left;
}

.join-form__row {
  display: flex;
  gap: 16px;
}

.join-form input,
.join-form select {
  flex: 1;
  width: 100%;
  padding: 14px 18px;
  border-radius: 10px;
  border: 1px solid rgba(255, 255, 255, 0.25);
  background: rgba(255, 255, 255, 0.08);
  color: var(--color-white);
  font-size: 1rem;
  font-family: inherit;
  transition: border-color var(--transition), background var(--transition);
}

.join-form select option {
  color: var(--color-text);
}

.join-form input::placeholder {
  color: rgba(255, 255, 255, 0.6);
}

.join-form input:focus,
.join-form select:focus {
  outline: none;
  border-color: var(--color-white);
  background: rgba(255, 255, 255, 0.14);
}

.join-form__botcheck {
  display: none;
}

.join-form__message {
  margin-top: 20px;
  font-weight: 700;
  min-height: 1.2em;
  color: #9be6b4;
}

/* ==========================================================================
   Footer
   ========================================================================== */
.footer {
  background: var(--color-navy);
  color: rgba(255, 255, 255, 0.7);
  padding: 40px 0;
}

.footer__inner {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 12px;
  text-align: center;
}

.logo--footer {
  color: var(--color-white);
}

.footer__text {
  font-size: 0.85rem;
}

/* ==========================================================================
   Back to top
   ========================================================================== */
.back-to-top {
  position: fixed;
  right: 24px;
  bottom: 24px;
  width: 46px;
  height: 46px;
  background: var(--color-primary);
  color: var(--color-white);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.2rem;
  box-shadow: var(--shadow-md);
  opacity: 0;
  visibility: hidden;
  transform: translateY(10px);
  transition: opacity var(--transition), transform var(--transition), visibility var(--transition);
  z-index: 90;
}

.back-to-top.is-visible {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

/* ==========================================================================
   Animaciones al hacer scroll (reveal)
   ========================================================================== */
.reveal {
  opacity: 0;
  transform: translateY(18px);
  transition: opacity 0.8s cubic-bezier(0.16, 1, 0.3, 1), transform 0.8s cubic-bezier(0.16, 1, 0.3, 1);
}

.reveal.is-visible {
  opacity: 1;
  transform: translateY(0);
}

.cards .reveal:nth-child(2),
.team .reveal:nth-child(2) {
  transition-delay: 0.08s;
}

.cards .reveal:nth-child(3),
.team .reveal:nth-child(3) {
  transition-delay: 0.16s;
}

/* ==========================================================================
   Responsive
   ========================================================================== */
@media (max-width: 900px) {
  .cards {
    grid-template-columns: repeat(2, 1fr);
  }

  .team {
    grid-template-columns: 1fr;
    max-width: 360px;
    margin: 0 auto;
  }

  .about {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 760px) {
  .nav {
    position: fixed;
    top: 76px;
    left: 0;
    right: 0;
    background: var(--color-white);
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    padding: 8px 24px 24px;
    box-shadow: var(--shadow-md);
    transform: translateY(-150%);
    opacity: 0;
    visibility: hidden;
    transition: transform var(--transition), opacity var(--transition), visibility var(--transition);
  }

  .nav.is-open {
    transform: translateY(0);
    opacity: 1;
    visibility: visible;
  }

  .nav__link {
    padding: 14px 0;
    border-bottom: 1px solid var(--color-border);
  }

  .nav__link--cta {
    margin-top: 12px;
    text-align: center;
  }

  .menu-toggle {
    display: flex;
  }

  .section {
    padding: 88px 0;
  }

  .join {
    padding: 88px 0;
  }

  .cards {
    grid-template-columns: 1fr;
  }

  .sedes-map {
    height: 320px;
  }

  .join-form__row {
    flex-direction: column;
  }
}

@media (max-width: 480px) {
  .hero__title {
    font-size: 3.2rem;
  }

  .about__pitch {
    font-size: 1.1rem;
    padding-left: 18px;
  }
}