/* =========================================================
   Brand Trade LATAM — estilos (mobile-first)
   Paleta: navy #0B2545 · acero #3E5C76 · acento #A9B4C0
   ========================================================= */

:root {
  --navy: #0b2545;
  --navy-soft: #13315c;
  --steel: #3e5c76;
  --metal: #a9b4c0;
  --bg: #f5f7fa;
  --white: #ffffff;
  --text: #1c2834;
  --muted: #5b6b7a;
  --error: #b42318;
  --shadow: 0 10px 28px rgba(11, 37, 69, 0.12);
  --radius: 14px;
  --nav-h: 72px;
  --font: "Inter", system-ui, -apple-system, sans-serif;
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  scroll-padding-top: var(--nav-h);
}

body {
  margin: 0;
  font-family: var(--font);
  color: var(--text);
  background: var(--white);
  line-height: 1.6;
}

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

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

ul {
  list-style: none;
  margin: 0;
  padding: 0;
}

.skip-link {
  position: absolute;
  left: 1rem;
  top: -4rem;
  background: var(--navy);
  color: var(--white);
  padding: 0.6rem 1rem;
  z-index: 1000;
}

.skip-link:focus {
  top: 1rem;
}

.container {
  width: min(1120px, calc(100% - 2rem));
  margin-inline: auto;
}

.eyebrow {
  text-transform: uppercase;
  letter-spacing: 0.14em;
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--steel);
  margin: 0 0 0.6rem;
}

h1,
h2,
h3 {
  line-height: 1.2;
  color: var(--navy);
  margin: 0 0 0.8rem;
}

h1 {
  font-size: clamp(1.85rem, 4.2vw, 3.1rem);
  font-weight: 800;
}

h2 {
  font-size: clamp(1.55rem, 3vw, 2.2rem);
  font-weight: 700;
}

h3 {
  font-size: 1.05rem;
}

p {
  margin: 0 0 1rem;
  color: var(--muted);
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.6rem;
  min-height: 48px;
  padding: 0.8rem 1.4rem;
  border: 0;
  border-radius: 10px;
  font-weight: 600;
  cursor: pointer;
  transition: transform 0.2s ease, box-shadow 0.2s ease, background 0.2s ease;
}

.btn--primary {
  background: var(--navy);
  color: var(--white);
  box-shadow: 0 8px 20px rgba(11, 37, 69, 0.18);
}

.btn--primary:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow);
  background: var(--navy-soft);
}

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

.btn:disabled {
  opacity: 0.7;
  cursor: not-allowed;
  transform: none;
}

.btn__spinner {
  width: 18px;
  height: 18px;
  border: 2px solid rgba(255, 255, 255, 0.35);
  border-top-color: #fff;
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
}

@keyframes spin {
  to {
    transform: rotate(360deg);
  }
}

/* ---------- Navbar ---------- */
.navbar {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(255, 255, 255, 0.94);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid rgba(169, 180, 192, 0.4);
}

.navbar__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: var(--nav-h);
}

.logo {
  display: flex;
  align-items: center;
  gap: 0.7rem;
  font-weight: 700;
  color: var(--navy);
}

.logo__mark {
  width: 40px;
  height: 40px;
  flex-shrink: 0;
}

.logo__word {
  letter-spacing: -0.02em;
}

.logo__word-trade {
  font-weight: 800;
  color: var(--steel);
}

.logo--light .logo__word-trade {
  color: var(--metal);
}

.nav-toggle {
  width: 44px;
  height: 44px;
  border: 0;
  background: transparent;
  display: grid;
  place-items: center;
  gap: 5px;
  cursor: pointer;
}

.nav-toggle__bar {
  display: block;
  width: 22px;
  height: 2px;
  background: var(--navy);
  transition: transform 0.25s ease, opacity 0.2s ease;
}

.nav-toggle.is-open .nav-toggle__bar:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}

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

.nav-toggle.is-open .nav-toggle__bar:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

.nav {
  position: absolute;
  left: 0;
  right: 0;
  top: var(--nav-h);
  background: var(--white);
  border-bottom: 1px solid rgba(169, 180, 192, 0.4);
  transform: translateY(-12px);
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.2s ease, transform 0.2s ease;
}

.nav.is-open {
  opacity: 1;
  transform: none;
  pointer-events: auto;
}

.nav__list {
  display: flex;
  flex-direction: column;
  padding: 0.6rem 1rem 1.2rem;
}

.nav__link {
  display: block;
  padding: 0.7rem 0.4rem;
  color: var(--steel);
  font-weight: 500;
}

.nav__link.is-active,
.nav__link:hover {
  color: var(--navy);
}

/* ---------- Hero + carousel ---------- */
.hero {
  position: relative;
  min-height: calc(100vh - var(--nav-h));
}

.carousel {
  position: relative;
}

.carousel--hero {
  min-height: calc(100vh - var(--nav-h));
}

.carousel__viewport {
  overflow: hidden;
  outline: none;
}

.carousel--hero .carousel__viewport,
.carousel--hero .carousel__track,
.carousel--hero .carousel__slide,
.carousel--hero img {
  min-height: calc(100vh - var(--nav-h));
}

.carousel__track {
  display: flex;
  transition: transform 0.6s ease;
  will-change: transform;
}

.carousel__slide {
  min-width: 100%;
  margin: 0;
}

.carousel--hero img {
  width: 100%;
  height: calc(100vh - var(--nav-h));
  object-fit: cover;
}

.hero__overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, rgba(11, 37, 69, 0.62), rgba(11, 37, 69, 0.78));
  pointer-events: none;
}

.hero__content {
  position: absolute;
  inset: 0;
  display: flex;
  flex-direction: column;
  justify-content: center;
  width: min(760px, calc(100% - 2.4rem));
  margin: 0 auto;
  color: var(--white);
  z-index: 2;
  pointer-events: none;
}

.hero__content .eyebrow,
.hero__content h1,
.hero__content .hero__lead {
  color: var(--white);
}

.hero__lead {
  font-size: 1.05rem;
  max-width: 38rem;
}

.hero__content .btn {
  pointer-events: auto;
  width: fit-content;
}

.carousel__btn {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  width: 44px;
  height: 44px;
  border: 0;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.88);
  color: var(--navy);
  cursor: pointer;
  z-index: 3;
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.carousel__btn:hover {
  transform: translateY(-50%) scale(1.06);
  box-shadow: var(--shadow);
}

.carousel__btn--prev {
  left: 0.8rem;
}

.carousel__btn--next {
  right: 0.8rem;
}

.carousel__dots {
  position: absolute;
  left: 0;
  right: 0;
  bottom: 1.2rem;
  display: flex;
  justify-content: center;
  gap: 0.45rem;
  z-index: 3;
}

.carousel__dot {
  width: 9px;
  height: 9px;
  border-radius: 50%;
  border: 0;
  background: rgba(255, 255, 255, 0.45);
  cursor: pointer;
}

.carousel__dot.is-active {
  background: var(--white);
  transform: scale(1.2);
}

/* ---------- Secciones ---------- */
.section {
  padding: 4.5rem 0;
}

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

.section--navy {
  background: var(--navy);
}

.section--navy h2,
.section--navy .section__intro p {
  color: var(--white);
}

.section--navy .eyebrow {
  color: var(--metal);
}

.section__intro {
  max-width: 640px;
  margin-bottom: 2rem;
}

.split {
  display: grid;
  gap: 2rem;
}

.split__media img {
  width: 100%;
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  object-fit: cover;
  min-height: 260px;
}

.category-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1rem;
}

.category-card {
  background: var(--white);
  border: 1px solid rgba(169, 180, 192, 0.4);
  border-radius: var(--radius);
  padding: 1.2rem 1rem;
  display: flex;
  align-items: center;
  gap: 0.9rem;
  font-weight: 600;
  color: var(--navy);
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.category-card i {
  width: 40px;
  height: 40px;
  border-radius: 10px;
  display: grid;
  place-items: center;
  background: var(--bg);
  color: var(--steel);
}

.category-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow);
}

.carousel--gallery {
  max-width: 820px;
  margin-inline: auto;
}

.carousel--gallery .carousel__viewport {
  border-radius: var(--radius);
  background: #0a1c33;
}

.carousel--gallery img {
  width: 100%;
  height: min(58vw, 460px);
  object-fit: cover;
}

.carousel--gallery figcaption {
  text-align: center;
  color: var(--metal);
  padding: 0.9rem 0 1.2rem;
  font-weight: 600;
}

.stats {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1rem;
  margin-bottom: 2rem;
}

.stat {
  background: var(--white);
  border-radius: var(--radius);
  padding: 1.2rem;
  text-align: center;
  box-shadow: 0 6px 18px rgba(11, 37, 69, 0.06);
}

.stat__value {
  display: block;
  font-size: 2rem;
  font-weight: 800;
  color: var(--navy);
}

.stat__label {
  color: var(--muted);
  font-size: 0.92rem;
}

.why-grid {
  display: grid;
  gap: 1rem;
}

.why-card {
  background: var(--white);
  border-radius: var(--radius);
  padding: 1.4rem;
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.why-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow);
}

.why-card i {
  color: var(--steel);
  font-size: 1.3rem;
  margin-bottom: 0.6rem;
}

.contact {
  display: grid;
  gap: 2rem;
}

.contact__list {
  display: grid;
  gap: 0.8rem;
  margin: 1.4rem 0;
}

.contact__list li {
  display: flex;
  gap: 0.7rem;
  align-items: flex-start;
  color: var(--navy);
}

.contact__list i {
  color: var(--steel);
  margin-top: 0.25rem;
}

.social {
  display: flex;
  gap: 0.6rem;
}

.social a {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  display: grid;
  place-items: center;
  background: var(--navy);
  color: var(--white);
  transition: transform 0.2s ease, background 0.2s ease;
}

.social a:hover {
  transform: translateY(-3px);
  background: var(--steel);
}

.form {
  background: var(--bg);
  padding: 1.4rem;
  border-radius: var(--radius);
}

.field {
  margin-bottom: 1rem;
}

.field label {
  display: block;
  font-weight: 600;
  color: var(--navy);
  margin-bottom: 0.35rem;
}

.field input,
.field textarea {
  width: 100%;
  border: 1px solid var(--metal);
  border-radius: 10px;
  padding: 0.75rem 0.85rem;
  font: inherit;
  background: var(--white);
}

.field input:focus,
.field textarea:focus {
  outline: 2px solid var(--steel);
  border-color: var(--steel);
}

.field.is-invalid input,
.field.is-invalid textarea {
  border-color: var(--error);
}

.field__error {
  min-height: 1.1rem;
  margin: 0.3rem 0 0;
  color: var(--error);
  font-size: 0.82rem;
}

.form__success {
  margin: 0.9rem 0 0;
  color: var(--navy);
  font-weight: 600;
}

.footer {
  background: var(--navy);
  color: var(--metal);
  padding: 2.4rem 0 1.6rem;
}

.footer__inner {
  display: grid;
  gap: 1.1rem;
}

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

.footer nav {
  display: flex;
  flex-wrap: wrap;
  gap: 0.9rem;
}

.footer nav a:hover {
  color: var(--white);
}

.social--footer a {
  background: rgba(255, 255, 255, 0.1);
}

.footer__copy {
  margin: 0.4rem 0 0;
  font-size: 0.85rem;
}

/* Scroll reveal */
.reveal {
  opacity: 0;
  transform: translateY(18px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

.reveal.is-visible {
  opacity: 1;
  transform: none;
}

/* Tablet */
@media (min-width: 768px) {
  .category-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .stats {
    grid-template-columns: repeat(3, 1fr);
  }

  .why-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .split {
    grid-template-columns: 1.1fr 0.9fr;
    align-items: center;
  }
}

/* Desktop */
@media (min-width: 1024px) {
  .nav-toggle {
    display: none;
  }

  .nav {
    position: static;
    opacity: 1;
    transform: none;
    pointer-events: auto;
    background: transparent;
    border: 0;
  }

  .nav__list {
    flex-direction: row;
    gap: 0.2rem;
    padding: 0;
  }

  .nav__link {
    padding: 0.4rem 0.7rem;
    border-radius: 8px;
  }

  .nav__link.is-active {
    background: var(--bg);
  }

  .category-grid {
    grid-template-columns: repeat(4, 1fr);
  }

  .contact {
    grid-template-columns: 1fr 1fr;
    align-items: start;
  }

  .why-grid {
    grid-template-columns: repeat(4, 1fr);
  }

  .footer__inner {
    grid-template-columns: 1fr auto auto;
    align-items: center;
  }

  .footer__copy {
    grid-column: 1 / -1;
  }
}