/* ============================================================
   ENVÍOS CORREOS EXPRESS — Landing Page
   Estilos principales
   ============================================================ */

/* ---------- Variables ---------- */
:root {
  --yellow: #FFCC00;
  --yellow-dark: #e6b800;
  --dark: #0E1526;
  --dark-2: #182138;
  --ink: #1f2937;
  --muted: #64748b;
  --bg-light: #f8fafc;
  --white: #ffffff;
  --border: #e2e8f0;
  --green: #25D366;
  --radius: 16px;
  --shadow: 0 10px 30px rgba(14, 21, 38, .10);
  --shadow-lg: 0 24px 60px rgba(14, 21, 38, .18);
  --header-h: 80px;
  --font: 'Inter', system-ui, -apple-system, 'Segoe UI', Roboto, sans-serif;
}

/* ---------- Reset / Base ---------- */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

html {
  scroll-behavior: smooth;
  scroll-padding-top: calc(var(--header-h) + 10px);
}

body {
  font-family: var(--font);
  color: var(--ink);
  line-height: 1.6;
  background: var(--white);
  -webkit-font-smoothing: antialiased;
}

img { max-width: 100%; display: block; }
a { text-decoration: none; color: inherit; }
ul { list-style: none; }
button { font-family: inherit; cursor: pointer; }

.container {
  width: min(1160px, 92%);
  margin-inline: auto;
}

.section { padding: 96px 0; }

.sr-only {
  position: absolute;
  width: 1px; height: 1px;
  padding: 0; margin: -1px;
  overflow: hidden;
  clip: rect(0 0 0 0);
  white-space: nowrap;
  border: 0;
}

/* ---------- Tipografía de secciones ---------- */
.section__head { text-align: center; max-width: 640px; margin: 0 auto 56px; }

.section__tag {
  display: inline-block;
  font-size: .8rem;
  font-weight: 700;
  letter-spacing: .12em;
  text-transform: uppercase;
  color: var(--yellow-dark);
  background: rgba(255, 204, 0, .14);
  border: 1px solid rgba(255, 204, 0, .45);
  padding: 6px 14px;
  border-radius: 999px;
  margin-bottom: 16px;
}

.section__tag--light { color: var(--yellow); background: rgba(255, 204, 0, .10); border-color: rgba(255, 204, 0, .35); }

.section__title {
  font-size: clamp(1.75rem, 3.4vw, 2.5rem);
  font-weight: 800;
  line-height: 1.15;
  letter-spacing: -0.02em;
  color: var(--dark);
}

.section__subtitle { color: var(--muted); font-size: 1.05rem; margin-top: 14px; }

/* ---------- Botones ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  font-weight: 700;
  font-size: .95rem;
  padding: 13px 26px;
  border-radius: 12px;
  border: 2px solid transparent;
  transition: transform .18s ease, box-shadow .18s ease, background .18s ease, color .18s ease;
}

.btn--lg { padding: 15px 32px; font-size: 1rem; }
.btn--block { width: 100%; }

.btn--primary {
  background: var(--yellow);
  color: var(--dark);
  box-shadow: 0 8px 20px rgba(255, 204, 0, .35);
}
.btn--primary:hover { background: var(--yellow-dark); transform: translateY(-2px); box-shadow: 0 12px 26px rgba(255, 204, 0, .45); }

.btn--ghost {
  border-color: rgba(255, 255, 255, .55);
  color: var(--white);
  background: rgba(255, 255, 255, .06);
  backdrop-filter: blur(4px);
}
.btn--ghost:hover { background: rgba(255, 255, 255, .16); transform: translateY(-2px); }

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

/* ---------- Header ---------- */
.header {
  position: fixed;
  inset: 0 0 auto 0;
  z-index: 100;
  height: var(--header-h);
  transition: background .25s ease, box-shadow .25s ease;
}

.header.scrolled {
  background: rgba(255, 255, 255, .92);
  backdrop-filter: blur(10px);
  box-shadow: 0 4px 20px rgba(14, 21, 38, .08);
}

.header__inner {
  height: var(--header-h);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}

/* Logo */
.logo { display: inline-flex; align-items: center; gap: 12px; }
.logo__icon { width: 44px; height: 44px; flex-shrink: 0; }

.logo__text { display: flex; flex-direction: column; line-height: 1.1; }
.logo__text strong {
  font-size: 1.15rem;
  font-weight: 900;
  letter-spacing: -0.01em;
  color: var(--white);
  transition: color .25s ease;
}
.logo__text span {
  font-size: .78rem;
  font-weight: 700;
  letter-spacing: .14em;
  text-transform: uppercase;
  color: var(--yellow);
}

.header.scrolled .logo__text strong { color: var(--dark); }

/* Navegación */
.nav { display: flex; align-items: center; gap: 28px; }
.nav__list { display: flex; align-items: center; gap: 26px; }

.nav__link {
  font-size: .95rem;
  font-weight: 600;
  color: rgba(255, 255, 255, .85);
  position: relative;
  padding: 6px 0;
  transition: color .2s ease;
}
.nav__link::after {
  content: "";
  position: absolute;
  left: 0; bottom: 0;
  width: 100%; height: 2px;
  background: var(--yellow);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform .2s ease;
}
.nav__link:hover, .nav__link.active { color: var(--yellow); }
.nav__link:hover::after, .nav__link.active::after { transform: scaleX(1); }

.header.scrolled .nav__link { color: var(--dark); }
.header.scrolled .nav__link:hover, .header.scrolled .nav__link.active { color: var(--yellow-dark); }

.nav__cta { padding: 10px 20px; font-size: .9rem; }

/* Hamburguesa */
.hamburger {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 44px; height: 44px;
  padding: 10px;
  background: none;
  border: none;
  border-radius: 10px;
  z-index: 110;
}
.hamburger span {
  display: block;
  height: 3px;
  width: 100%;
  border-radius: 3px;
  background: var(--white);
  transition: transform .25s ease, opacity .25s ease, background .25s ease;
}
.header.scrolled .hamburger span { background: var(--dark); }
.hamburger.open span:nth-child(1) { transform: translateY(8px) rotate(45deg); }
.hamburger.open span:nth-child(2) { opacity: 0; }
.hamburger.open span:nth-child(3) { transform: translateY(-8px) rotate(-45deg); }

/* ---------- Hero ---------- */
.hero {
  position: relative;
  min-height: 100svh;
  display: flex;
  align-items: center;
  padding: calc(var(--header-h) + 48px) 0 64px;
  overflow: hidden;
}

.hero__bg {
  position: absolute;
  inset: 0;
  background: url('assets/img/hero-truck.jpg') center/cover no-repeat;
}

.hero__overlay {
  position: absolute;
  inset: 0;
  background:
    linear-gradient(100deg, rgba(14, 21, 38, .96) 0%, rgba(14, 21, 38, .82) 40%, rgba(14, 21, 38, .45) 75%, rgba(14, 21, 38, .35) 100%),
    linear-gradient(to top, rgba(14, 21, 38, .55), transparent 45%);
}

.hero__content { position: relative; z-index: 2; max-width: 720px; }

.hero__badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: rgba(255, 204, 0, .12);
  border: 1px solid rgba(255, 204, 0, .45);
  color: var(--yellow);
  font-weight: 700;
  font-size: .85rem;
  padding: 8px 16px;
  border-radius: 999px;
  margin-bottom: 22px;
}

.hero__title {
  font-size: clamp(2.3rem, 5.6vw, 3.9rem);
  font-weight: 900;
  line-height: 1.08;
  letter-spacing: -0.025em;
  color: var(--white);
}

.hero__highlight { color: var(--yellow); }

.hero__subtitle {
  margin-top: 20px;
  font-size: clamp(1.05rem, 1.6vw, 1.2rem);
  color: rgba(255, 255, 255, .82);
  max-width: 560px;
}

.hero__actions { display: flex; flex-wrap: wrap; gap: 14px; margin-top: 32px; }

.hero__stats {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
  margin-top: 56px;
  padding-top: 32px;
  border-top: 1px solid rgba(255, 255, 255, .18);
}

.hero__stat-number {
  font-size: clamp(1.6rem, 3vw, 2.2rem);
  font-weight: 900;
  color: var(--yellow);
  letter-spacing: -0.02em;
}

.hero__stat-label {
  font-size: .82rem;
  color: rgba(255, 255, 255, .72);
  margin-top: 2px;
}

/* ---------- Servicios ---------- */
.services { background: var(--bg-light); }

.services__grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
}

.card {
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 36px 30px;
  box-shadow: var(--shadow);
  transition: transform .22s ease, box-shadow .22s ease, border-color .22s ease;
}
.card:hover { transform: translateY(-6px); box-shadow: var(--shadow-lg); border-color: rgba(255, 204, 0, .6); }

.service { display: flex; flex-direction: column; }

.service__icon {
  width: 60px; height: 60px;
  display: grid;
  place-items: center;
  border-radius: 14px;
  background: rgba(255, 204, 0, .18);
  color: var(--yellow-dark);
  margin-bottom: 22px;
}
.service__icon svg { width: 30px; height: 30px; }

.service__title { font-size: 1.25rem; font-weight: 800; color: var(--dark); margin-bottom: 10px; }
.service__desc { color: var(--muted); font-size: .95rem; }

.service__list { margin: 18px 0 22px; display: grid; gap: 10px; }
.service__list li {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: .9rem;
  font-weight: 500;
}
.service__list li::before {
  content: "✓";
  flex-shrink: 0;
  width: 20px; height: 20px;
  display: grid;
  place-items: center;
  border-radius: 50%;
  background: rgba(255, 204, 0, .3);
  color: var(--dark);
  font-size: .72rem;
  font-weight: 900;
}

.service__link {
  margin-top: auto;
  font-weight: 700;
  font-size: .92rem;
  color: var(--dark);
  transition: color .2s ease;
}
.service__link:hover { color: var(--yellow-dark); }

/* ---------- Rastreo ---------- */
.tracking {
  background:
    radial-gradient(800px 400px at 85% -10%, rgba(255, 204, 0, .14), transparent 60%),
    var(--dark);
  color: var(--white);
}

.tracking__inner { max-width: 760px; margin-inline: auto; text-align: center; }

.tracking__title { font-size: clamp(1.75rem, 3.4vw, 2.5rem); font-weight: 800; letter-spacing: -0.02em; }
.tracking__text { color: rgba(255, 255, 255, .78); margin-top: 14px; }

.tracking__form {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  justify-content: center;
  margin-top: 34px;
  background: rgba(255, 255, 255, .06);
  border: 1px solid rgba(255, 255, 255, .14);
  border-radius: var(--radius);
  padding: 14px;
  backdrop-filter: blur(6px);
}

.tracking__input {
  flex: 1 1 260px;
  padding: 13px 18px;
  border-radius: 10px;
  border: 2px solid transparent;
  background: var(--white);
  color: var(--ink);
  font-size: .95rem;
  font-family: inherit;
  outline: none;
  transition: border-color .2s ease;
}
.tracking__input:focus { border-color: var(--yellow); }

.tracking__hint { width: 100%; font-size: .78rem; color: rgba(255, 255, 255, .5); }

.tracking__result {
  margin-top: 22px;
  padding: 18px 22px;
  border-radius: 12px;
  font-weight: 600;
  font-size: .95rem;
  text-align: left;
  background: rgba(255, 204, 0, .12);
  border: 1px solid rgba(255, 204, 0, .4);
  color: var(--yellow);
}
.tracking__result.error {
  background: rgba(248, 113, 113, .12);
  border-color: rgba(248, 113, 113, .45);
  color: #fca5a5;
}

/* ---------- Cobertura ---------- */
.coverage__grid {
  display: grid;
  grid-template-columns: 1fr 1.1fr;
  gap: 56px;
  align-items: center;
}

.coverage__media {
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: var(--shadow-lg);
  position: relative;
}
.coverage__media::after {
  content: "";
  position: absolute;
  inset: 0;
  border-radius: var(--radius);
  box-shadow: inset 0 0 0 1px rgba(255, 255, 255, .12);
}
.coverage__media img { width: 100%; height: 100%; object-fit: cover; min-height: 340px; }

.coverage__cities {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin: 26px 0 30px;
}
.coverage__cities li {
  font-size: .85rem;
  font-weight: 600;
  padding: 8px 16px;
  border-radius: 999px;
  background: var(--bg-light);
  border: 1px solid var(--border);
  color: var(--dark);
}

.coverage__features { display: grid; gap: 18px; margin-bottom: 32px; }
.coverage__feature { display: flex; gap: 14px; align-items: flex-start; }
.coverage__feature-icon { font-size: 1.4rem; line-height: 1.3; }
.coverage__feature strong { color: var(--dark); }
.coverage__feature p { font-size: .88rem; color: var(--muted); }

/* ---------- Por qué elegirnos ---------- */
.why { background: var(--bg-light); }

.why__grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}

.why__item {
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 30px 26px;
  box-shadow: var(--shadow);
  transition: transform .22s ease, box-shadow .22s ease;
}
.why__item:hover { transform: translateY(-6px); box-shadow: var(--shadow-lg); }

.why__icon {
  width: 52px; height: 52px;
  display: grid;
  place-items: center;
  border-radius: 12px;
  background: var(--dark);
  color: var(--yellow);
  margin-bottom: 18px;
}
.why__icon svg { width: 26px; height: 26px; }

.why__item h3 { font-size: 1.05rem; font-weight: 800; color: var(--dark); margin-bottom: 8px; }
.why__item p { font-size: .9rem; color: var(--muted); }

/* ---------- Contacto ---------- */
.contact__grid {
  display: grid;
  grid-template-columns: 1fr 1.15fr;
  gap: 56px;
  align-items: start;
}

.contact__list { display: grid; gap: 20px; margin-top: 30px; }
.contact__list li { display: flex; gap: 16px; align-items: flex-start; }

.contact__icon {
  flex-shrink: 0;
  width: 46px; height: 46px;
  display: grid;
  place-items: center;
  font-size: 1.2rem;
  background: rgba(255, 204, 0, .18);
  border-radius: 12px;
}

.contact__list strong { display: block; color: var(--dark); font-size: .95rem; }
.contact__list a { color: var(--muted); font-size: .95rem; transition: color .2s ease; }
.contact__list a:hover { color: var(--yellow-dark); }
.contact__list p { color: var(--muted); font-size: .95rem; }

/* Formulario */
.contact__form {
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow-lg);
  padding: 36px;
}

.form__row { display: grid; grid-template-columns: 1fr 1fr; gap: 18px; }

.form__group { margin-bottom: 18px; }
.form__group label {
  display: block;
  font-size: .85rem;
  font-weight: 700;
  color: var(--dark);
  margin-bottom: 7px;
}

.form__group input,
.form__group select,
.form__group textarea {
  width: 100%;
  padding: 12px 15px;
  border: 1.5px solid var(--border);
  border-radius: 10px;
  font-family: inherit;
  font-size: .95rem;
  color: var(--ink);
  background: var(--bg-light);
  outline: none;
  transition: border-color .2s ease, box-shadow .2s ease, background .2s ease;
}

.form__group input:focus,
.form__group select:focus,
.form__group textarea:focus {
  border-color: var(--yellow-dark);
  background: var(--white);
  box-shadow: 0 0 0 4px rgba(255, 204, 0, .18);
}

.form__group input.invalid,
.form__group textarea.invalid,
.form__group select.invalid {
  border-color: #ef4444;
}

.form__success {
  margin-top: 16px;
  padding: 14px 18px;
  border-radius: 10px;
  background: #ecfdf5;
  border: 1px solid #a7f3d0;
  color: #065f46;
  font-weight: 600;
  font-size: .92rem;
}

/* ---------- Footer ---------- */
.footer { background: var(--dark); color: rgba(255, 255, 255, .75); }

.footer__grid {
  display: grid;
  grid-template-columns: 1.6fr 1fr 1fr 1.2fr;
  gap: 44px;
  padding: 64px 0 48px;
}

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

.footer__about { font-size: .92rem; margin: 18px 0 22px; max-width: 300px; }

.footer__social { display: flex; gap: 10px; }
.footer__social a {
  width: 40px; height: 40px;
  display: grid;
  place-items: center;
  border-radius: 10px;
  background: rgba(255, 255, 255, .08);
  color: rgba(255, 255, 255, .85);
  transition: background .2s ease, color .2s ease, transform .2s ease;
}
.footer__social a:hover { background: var(--yellow); color: var(--dark); transform: translateY(-3px); }
.footer__social svg { width: 18px; height: 18px; }

.footer__col h4 {
  font-size: .85rem;
  text-transform: uppercase;
  letter-spacing: .12em;
  color: var(--yellow);
  margin-bottom: 18px;
}
.footer__col ul { display: grid; gap: 10px; }
.footer__col a { font-size: .92rem; transition: color .2s ease; }
.footer__col a:hover { color: var(--yellow); }

.footer__bottom { border-top: 1px solid rgba(255, 255, 255, .12); padding: 22px 0; }
.footer__bottom .container { display: flex; flex-wrap: wrap; justify-content: space-between; gap: 8px; }
.footer__bottom p { font-size: .82rem; }
.footer__disclaimer { color: rgba(255, 255, 255, .45); }

/* ---------- WhatsApp flotante ---------- */
.whatsapp {
  position: fixed;
  right: 22px;
  bottom: 22px;
  z-index: 90;
  display: inline-flex;
  align-items: center;
  gap: 10px;
  background: var(--green);
  color: var(--white);
  font-weight: 700;
  font-size: .9rem;
  padding: 14px 22px;
  border-radius: 999px;
  box-shadow: 0 10px 26px rgba(37, 211, 102, .4);
  transition: transform .2s ease, box-shadow .2s ease;
}
.whatsapp:hover { transform: translateY(-3px) scale(1.03); box-shadow: 0 14px 32px rgba(37, 211, 102, .5); }
.whatsapp svg { width: 22px; height: 22px; }
.whatsapp span { display: inline; }

/* ---------- Animación reveal ---------- */
.reveal {
  opacity: 0;
  transform: translateY(26px);
  transition: opacity .6s ease, transform .6s ease;
}
.reveal.visible { opacity: 1; transform: none; }

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .reveal { opacity: 1; transform: none; transition: none; }
  .card:hover, .why__item:hover, .btn:hover, .whatsapp:hover { transform: none; }
}

/* ============================================================
   RESPONSIVE
   ============================================================ */
@media (max-width: 992px) {
  .section { padding: 76px 0; }

  .hamburger { display: flex; }

  .nav {
    position: fixed;
    top: 0; right: 0;
    height: 100vh;
    width: min(320px, 84vw);
    flex-direction: column;
    justify-content: center;
    align-items: flex-start;
    gap: 34px;
    background: var(--dark);
    padding: 40px 36px;
    transform: translateX(100%);
    transition: transform .3s ease;
    box-shadow: -20px 0 60px rgba(0, 0, 0, .3);
  }
  .nav.open { transform: translateX(0); }

  .nav__list { flex-direction: column; align-items: flex-start; gap: 22px; }
  .nav__link { color: rgba(255, 255, 255, .88) !important; font-size: 1.1rem; }
  .nav__cta { width: 100%; justify-content: center; }

  .hero__stats { grid-template-columns: repeat(2, 1fr); gap: 26px; }

  .services__grid { grid-template-columns: 1fr; max-width: 480px; margin-inline: auto; }

  .coverage__grid { grid-template-columns: 1fr; gap: 36px; }
  .coverage__media img { min-height: 260px; }

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

  .contact__grid { grid-template-columns: 1fr; gap: 40px; }

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

@media (max-width: 768px) {
  .why__grid { grid-template-columns: 1fr; }
  .form__row { grid-template-columns: 1fr; }
  .footer__bottom .container { flex-direction: column; }
}

@media (max-width: 520px) {
  .section { padding: 64px 0; }
  .hero__actions .btn { width: 100%; }
  .hero__stats { gap: 18px; }
  .whatsapp span { display: none; }
  .whatsapp { padding: 15px; border-radius: 50%; }
  .footer__grid { grid-template-columns: 1fr; }
  .contact__form { padding: 26px 20px; }
}