/* ---------- Variables ---------- */
:root {
  --color-black: #111111;
  --color-dark: #1a1a1a;
  --color-white: #ffffff;
  --color-offwhite: #f5f5f5;
  --color-accent: #e8503a;
  --color-accent-dark: #cc3f2c;
  --color-gray: #6b6b6b;
  --font-heading: "Oswald", "Arial Narrow", sans-serif;
  --font-body: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  --container-w: 1180px;
  --header-h: 100px;
}

/* ---------- Reset ---------- */
* { box-sizing: border-box; }
html {
  scroll-behavior: smooth;
}
body {
  margin: 0;
  font-family: var(--font-body);
  color: var(--color-black);
  background: var(--color-white);
  line-height: 1.6;
}
img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
ul { margin: 0; padding: 0; list-style: none; }
h1, h2, h3 {
  font-family: var(--font-heading);
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.02em;
  margin: 0 0 1rem;
}
section[id] { scroll-margin-top: var(--header-h); }

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

.section { padding: 64px 0; }
.section--dark { background: var(--color-black); color: var(--color-white); }
.section--dark h2, .section--dark h3 { color: var(--color-white); }

h2 {
  font-size: clamp(1.5rem, 3vw, 2.1rem);
  position: relative;
  padding-bottom: 14px;
}
h2::after {
  content: "";
  position: absolute;
  left: 0; bottom: 0;
  width: 56px; height: 3px;
  background: var(--color-accent);
}

/* ---------- Buttons ---------- */
.btn {
  display: inline-block;
  padding: 14px 28px;
  font-family: var(--font-heading);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  font-size: 0.85rem;
  border-radius: 4px;
  border: 2px solid transparent;
  cursor: pointer;
  transition: background-color .15s ease, color .15s ease, border-color .15s ease;
}
.btn--accent {
  background: var(--color-accent);
  color: var(--color-white);
  margin-top: 8px;
}
.btn--accent:hover { background: var(--color-accent-dark); }
.btn--outline {
  background: transparent;
  border-color: var(--color-accent);
  color: var(--color-accent);
  margin-top: 8px;
  margin-left: 0;
}
.section--dark .btn--outline { color: var(--color-white); border-color: var(--color-white); }
.btn + .btn { margin-left: 12px; }

/* ---------- Header ---------- */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 50;
  background: transparent;
  height: var(--header-h);
  transition: background-color .25s ease, box-shadow .25s ease, backdrop-filter .25s ease;
}
.site-header.is-scrolled {
  background: rgba(17,17,17,0.94);
  backdrop-filter: blur(4px);
  box-shadow: 0 2px 10px rgba(0,0,0,0.25);
}
.site-header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 100%;
}
.brand { margin-left: 0; transition: margin-left .15s ease; }
.brand__logo { height: 84px; width: auto; }

@media (min-width: 1024px) {
  .brand { margin-left: 180px; }
}
.site-nav {
  display: flex;
  gap: 28px;
}
.site-nav a {
  color: var(--color-white);
  font-family: var(--font-heading);
  font-size: 0.85rem;
  text-transform: uppercase;
  letter-spacing: 0.03em;
}
.site-nav a:hover { color: var(--color-accent); }

.nav-toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 36px;
  height: 36px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 0;
}
.nav-toggle span {
  display: block;
  height: 2px;
  background: var(--color-white);
  border-radius: 2px;
}

/* ---------- Hero ---------- */
.hero {
  position: relative;
  min-height: 640px;
  display: flex;
  align-items: center;
  color: var(--color-white);
  overflow: hidden;
}
.hero__bg {
  position: absolute; inset: 0;
  background-size: cover;
  background-position: center 20%;
}
.hero__overlay {
  position: absolute; inset: 0;
  background:
    linear-gradient(180deg, rgba(0,0,0,0.55) 0%, rgba(0,0,0,0) 160px),
    linear-gradient(90deg, rgba(0,0,0,0.5) 0%, rgba(0,0,0,0.32) 45%, rgba(0,0,0,0.12) 100%);
}
.hero__content { position: relative; max-width: 860px; padding-block: 56px; }
.hero h1 {
  color: var(--color-accent);
  font-size: clamp(3.9rem, 9.6vw, 6.8rem);
  margin-bottom: 0.7rem;
}
.hero__subtitle {
  color: var(--color-accent);
  font-family: var(--font-heading);
  font-weight: 700;
  text-transform: uppercase;
  font-size: clamp(1.7rem, 3.8vw, 2.6rem);
  line-height: 1.2;
  margin-bottom: 2rem;
}

/* ---------- FAQ intro ---------- */
.faq-intro__grid {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 48px;
  align-items: start;
}
.faq-intro__media img {
  border-radius: 4px;
  margin-bottom: 12px;
  width: 100%;
  height: 325px;
  object-fit: cover;
}
.faq-intro__caption { font-weight: 600; margin-bottom: 1.5rem; }
.cta-heading {
  color: var(--color-accent);
  font-size: 1.4rem;
  margin-bottom: 0;
}

/* ---------- Accordion ---------- */
.accordion__item {
  border-bottom: 1px solid rgba(0,0,0,0.1);
}
.section--dark .accordion__item { border-color: rgba(255,255,255,0.15); }
.accordion__trigger {
  width: 100%;
  text-align: left;
  background: none;
  border: none;
  padding: 12px 0;
  font-family: var(--font-body);
  font-weight: 600;
  font-size: 0.95rem;
  color: var(--color-accent);
  cursor: pointer;
  display: flex;
  align-items: center;
  gap: 8px;
}
.accordion__trigger::before {
  content: "▾";
  display: inline-block;
  transition: transform .15s ease;
  font-size: 0.75em;
}
.accordion__trigger[aria-expanded="true"]::before { transform: rotate(180deg); }
.accordion__panel {
  overflow: hidden;
  max-height: 0;
  transition: max-height .25s ease;
}
.accordion__panel-inner {
  padding: 0 0 16px;
  color: var(--color-gray);
  font-size: 0.95rem;
}
.section--dark .accordion__panel-inner { color: #cfcfcf; }
.accordion__panel-inner strong { color: inherit; }

/* ---------- Beneficios ---------- */
.tags {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin: 24px 0 12px;
}
.tag {
  padding: 10px 18px;
  border-radius: 4px;
  border: none;
  font-family: var(--font-heading);
  font-size: 0.8rem;
  text-transform: uppercase;
  letter-spacing: 0.03em;
  background: #333;
  color: var(--color-white);
  cursor: pointer;
  transition: background-color .15s ease;
}
.tag:hover { background: #4a4a4a; }
.tag--active,
.tag--active:hover { background: var(--color-accent); }
.beneficio-panel {
  max-width: 640px;
  margin: 0 auto 24px;
  color: #d8d8d8;
  font-size: 0.98rem;
  line-height: 1.6;
  min-height: 4.8em;
}
.gallery-watermark {
  position: relative;
  text-align: center;
  padding: 24px 0 12px;
}
.gallery-watermark__text {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: clamp(3rem, 10vw, 6rem);
  font-family: var(--font-heading);
  font-weight: 700;
  color: rgba(255,255,255,0.06);
  letter-spacing: 0.1em;
}
.gallery-watermark__img {
  position: relative;
  width: 320px;
  height: 220px;
  object-fit: cover;
  margin: 0 auto;
  border-radius: 4px;
  opacity: 1;
  transition: opacity .15s ease;
}
.gallery-watermark__img.is-fading { opacity: 0; }

/* ---------- Filosofía ---------- */
.filosofia__grid {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 48px;
}
.filosofia p { margin: 0.4rem 0; }
.checklist li {
  position: relative;
  padding-left: 22px;
  margin-bottom: 10px;
  font-size: 0.95rem;
}
.checklist li::before {
  content: "▸";
  position: absolute;
  left: 0;
  color: var(--color-accent);
}

/* ---------- Cronograma ---------- */
.cronograma { position: relative; overflow: hidden; padding: 72px 0; }
.cronograma__bg {
  position: absolute; inset: 0;
  background-size: cover;
  background-position: center;
  opacity: 0.35;
}
.cronograma__content { position: relative; }
.cronograma__lugar {
  font-family: var(--font-heading);
  text-transform: uppercase;
  font-size: 0.85rem;
  letter-spacing: 0.03em;
  border-bottom: 1px solid rgba(255,255,255,0.25);
  padding-bottom: 16px;
  margin-bottom: 24px;
}
.cronograma__tabla {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
  gap: 24px;
}
.cronograma__instructor h4 {
  font-family: var(--font-heading);
  text-transform: uppercase;
  font-size: 0.95rem;
  margin: 0 0 6px;
}
.cronograma__instructor p { margin: 2px 0; font-size: 0.85rem; color: #d8d8d8; }

/* ---------- Lugares ---------- */
.lugares__intro { max-width: 780px; color: var(--color-gray); }
.lugares__sedes {
  background: var(--color-black);
  color: var(--color-white);
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 32px;
  padding: 48px 24px;
  max-width: var(--container-w);
  margin: 32px auto 0;
  border-radius: 4px;
}
.sede h3 { color: var(--color-accent); font-size: 1.1rem; margin-bottom: 8px; }
.sede__direccion { font-weight: 600; margin-bottom: 12px; text-transform: uppercase; font-size: 0.85rem; letter-spacing: 0.02em; }
.sede__clases { margin-bottom: 16px; }
.sede__clases-label { font-size: 0.8rem; color: #aaa; margin-bottom: 6px; }
.sede__clases li {
  display: flex;
  justify-content: space-between;
  border-bottom: 1px solid rgba(255,255,255,0.12);
  padding: 6px 0;
  font-size: 0.9rem;
}

/* ---------- FAQ completo ---------- */
.faq-completo__inner { max-width: 720px; text-align: center; }
.faq-completo .accordion { text-align: left; margin-bottom: 24px; }

/* ---------- Galería / carrusel ---------- */
.galeria { padding: 64px 0 0; }
.galeria__carousel-wrap {
  display: flex;
  align-items: center;
  gap: 12px;
  max-width: var(--container-w);
  margin: 0 auto;
  padding: 0 12px;
}
.galeria__track {
  display: flex;
  gap: 12px;
  overflow-x: auto;
  scroll-snap-type: x mandatory;
  scrollbar-width: none;
  flex: 1;
}
.galeria__track::-webkit-scrollbar { display: none; }
.galeria__track img {
  scroll-snap-align: start;
  height: 220px;
  width: auto;
  flex-shrink: 0;
  border-radius: 2px;
}
.galeria__arrow {
  background: none;
  border: none;
  color: var(--color-accent);
  font-size: 1.4rem;
  cursor: pointer;
  padding: 8px;
  flex-shrink: 0;
}
.galeria__cta { text-align: center; padding: 40px 0 64px; }
.galeria__caption { font-family: var(--font-heading); text-transform: uppercase; font-size: 0.9rem; margin-bottom: 6px; color: var(--color-white); }
.galeria .cta-heading { margin-bottom: 4px; }

/* ---------- Testimonios ---------- */
.testimonios h2 { margin-bottom: 32px; }
.testimonios__grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 20px;
}
.testimonio {
  background: var(--color-white);
  color: var(--color-black);
  border-radius: 6px;
  padding: 20px;
  display: flex;
  flex-direction: column;
  gap: 8px;
}
.testimonio__head { display: flex; align-items: center; gap: 12px; }
.testimonio__foto {
  width: 44px; height: 44px;
  border-radius: 50%;
  object-fit: cover;
}
.testimonio__nombre { font-weight: 600; font-size: 0.95rem; }
.testimonio__estrellas { color: var(--color-accent); font-size: 0.85rem; letter-spacing: 2px; }
.testimonio__texto { font-size: 0.88rem; color: #333; margin: 0; }

/* ---------- Footer ---------- */
.site-footer { background: var(--color-black); color: var(--color-white); padding-top: 48px; }
.social-row {
  display: flex;
  gap: 24px;
  justify-content: center;
  padding-bottom: 40px;
  border-bottom: 1px solid rgba(255,255,255,0.1);
}
.social-icon svg { width: 22px; height: 22px; fill: #bbb; transition: fill .15s ease; }
.social-icon:hover svg { fill: var(--color-accent); }

.footer-grid {
  display: grid;
  grid-template-columns: 1fr 1fr 1.3fr;
  gap: 40px;
  padding: 48px 24px;
}
.footer-brand__logo { height: 56px; margin-bottom: 12px; }
.footer-brand p { color: #ccc; font-size: 0.9rem; }
.site-footer h3 {
  color: var(--color-accent);
  font-size: 1rem;
  margin-bottom: 14px;
}
.site-footer p { color: #ccc; font-size: 0.9rem; margin: 4px 0; }
.site-footer a:hover { color: var(--color-accent); }

.contact-form { display: flex; flex-direction: column; gap: 10px; }
.contact-form input,
.contact-form textarea {
  width: 100%;
  padding: 12px 14px;
  border: none;
  border-radius: 3px;
  font-family: var(--font-body);
  font-size: 0.9rem;
  background: var(--color-white);
  color: var(--color-black);
  resize: vertical;
}
.contact-form input:invalid[data-touched="true"],
.contact-form textarea:invalid[data-touched="true"] {
  outline: 2px solid var(--color-accent);
}
.contact-form .btn { align-self: flex-start; }

.footer-bottom {
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 8px;
  padding: 24px;
  border-top: 1px solid rgba(255,255,255,0.1);
  font-size: 0.8rem;
  color: #999;
}

/* ---------- WhatsApp float ---------- */
.whatsapp-float {
  position: fixed;
  right: 20px;
  bottom: 20px;
  width: 52px;
  height: 52px;
  border-radius: 50%;
  background: #25D366;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 4px 12px rgba(0,0,0,0.3);
  z-index: 60;
}
.whatsapp-float svg { width: 28px; height: 28px; fill: var(--color-white); }

/* ---------- Responsive ---------- */
@media (max-width: 860px) {
  .faq-intro__grid,
  .filosofia__grid { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr; }
}

@media (max-width: 720px) {
  .brand { display: none; }
  .site-header__inner { justify-content: flex-end; }
  .nav-toggle { display: flex; }
  .site-nav {
    position: absolute;
    top: var(--header-h);
    left: 0; right: 0;
    background: rgba(17,17,17,0.98);
    flex-direction: column;
    gap: 0;
    max-height: 0;
    overflow: hidden;
    transition: max-height .2s ease;
  }
  .site-nav.is-open { max-height: 320px; }
  .site-nav a { padding: 16px 24px; border-bottom: 1px solid rgba(255,255,255,0.08); }
  .hero { min-height: 560px; }
  .btn + .btn { margin-left: 0; margin-top: 10px; display: block; }
}