/* =========================================================
   Transportes JGC-HEVI — estilos modernos
   ========================================================= */
:root {
  --verde-industrial: #2D5A27;
  --azul-logistico: #0056B3;
  --gris-900: #111827;
  --gris-700: #374151;
  --gris-500: #6B7280;
  --gris-200: #E5E7EB;
  --gris-100: #F3F4F6;
  --blanco: #ffffff;
  --success: #1f9d55;
  --shadow-sm: 0 1px 2px rgba(0,0,0,0.06);
  --shadow-md: 0 4px 12px rgba(0,0,0,0.12);
  --radius: 14px;
}
/* Reset básico */
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: 'Inter', system-ui, -apple-system, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, 'Noto Sans', 'Poppins', sans-serif;
  color: var(--gris-900);
  background: var(--gris-100);
  line-height: 1.6;
}
img { max-width: 100%; display: block; }
a { color: var(--azul-logistico); text-decoration: none; }
a:hover { text-decoration: underline; }
.container { width: min(1100px, 92%); margin: 0 auto; }
.section { padding: 64px 0; }
.h2, h2 { font-size: clamp(1.6rem, 2vw + 1rem, 2rem); margin: 0 0 16px; }

/* Nav */
.site-header { position: sticky; top: 0; z-index: 50; background: var(--blanco); box-shadow: var(--shadow-sm); }
.nav { display: flex; align-items: center; justify-content: space-between; gap: 16px; padding: 14px min(4vw, 28px); }
.logo { display: flex; align-items: center; gap: 10px; font-weight: 800; color: var(--verde-industrial); }
.logo-img { width: 36px; height: 36px; }
.logo-text { font-size: 1.1rem; }
.nav-links { display: flex; align-items: center; gap: 18px; list-style: none; padding: 0; margin: 0; }
.nav-links a { color: var(--gris-700); font-weight: 600; }
.nav-links a:hover { color: var(--azul-logistico); }
.nav-toggle { display: none; width: 44px; height: 44px; border: 1px solid var(--gris-200); border-radius: 10px; background: var(--blanco); cursor: pointer; align-items: center; justify-content: center; gap: 4px; }
.nav-toggle span { width: 20px; height: 2px; background: var(--gris-700); display: block; }

/* Hero */
.hero { position: relative; display: grid; place-items: center; min-height: 64vh; background: linear-gradient(180deg, rgba(45,90,39,0.7), rgba(0,86,179,0.6)), url('../img/hero.jpg') center/cover no-repeat; }
.hero-inner { text-align: center; color: var(--blanco); padding: 90px 18px; }
.hero h1 { font-size: clamp(2rem, 5vw + 1rem, 3.2rem); margin: 0 0 10px; letter-spacing: 0.6px; }
.subtitle { color: #e0e7ff; font-size: 1.05rem; }
.hero-cta { margin-top: 26px; display: flex; gap: 14px; justify-content: center; flex-wrap: wrap; }
.badge { margin-top: 18px; display: inline-block; background: rgba(255,255,255,0.14); padding: 10px 14px; border-radius: 999px; border: 1px solid rgba(255,255,255,0.28); backdrop-filter: blur(5px); }

/* Buttons */
.btn { display: inline-flex; align-items: center; justify-content: center; gap: 8px; padding: 12px 18px; border-radius: 12px; font-weight: 600; border: 1px solid transparent; transition: transform .08s ease, box-shadow .18s ease, background .18s ease; cursor: pointer; }
.btn-primary { background: var(--azul-logistico); color: var(--blanco); box-shadow: var(--shadow-md); }
.btn-primary:hover { filter: brightness(1.05); transform: translateY(-1px); }
.btn-outline { background: transparent; color: var(--blanco); border-color: rgba(255,255,255,0.7); }
.btn-outline:hover { background: rgba(255,255,255,0.12); }

/* Grids */
.grid-2 { display: grid; grid-template-columns: 1fr 1fr; gap: 28px; align-items: center; }
.cards { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
.card { background: var(--blanco); border-radius: var(--radius); padding: 20px; box-shadow: var(--shadow-sm); border: 1px solid var(--gris-200); transition: transform .08s ease, box-shadow .18s ease; }
.card:hover { transform: translateY(-2px); box-shadow: var(--shadow-md); }
.card-icon { color: var(--verde-industrial); }

/* Lists */
.list-check { list-style: none; padding: 0; margin: 12px 0 0; }
.list-check li { position: relative; padding-left: 26px; margin-bottom: 8px; }
.list-check li::before { content: '✓'; position: absolute; left: 0; color: var(--success); font-weight: 700; }

/* Images */
.img-responsive { border-radius: var(--radius); box-shadow: var(--shadow-sm); border: 1px solid var(--gris-200); }

/* Form */
.form { background: var(--blanco); padding: 20px; border-radius: var(--radius); box-shadow: var(--shadow-sm); border: 1px solid var(--gris-200); }
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.form-field { display: grid; gap: 6px; }
label { font-weight: 600; color: var(--gris-700); }
input, textarea { width: 100%; padding: 12px; border: 1px solid var(--gris-200); border-radius: 10px; background: var(--gris-100); font-size: 1rem; }
input:focus, textarea:focus { outline: none; border-color: var(--azul-logistico); box-shadow: 0 0 0 3px rgba(0,86,179,.15); background: var(--blanco); }
.form-note { font-size: .85rem; color: var(--gris-500); margin-top: 6px; }
.form-status { margin-top: 10px; font-weight: 600; }

/* Footer */
.site-footer { background: var(--gris-100); padding: 34px 0; border-top: 1px solid var(--gris-200); }
.footer-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; align-items: start; }
.logo-foot { width: 44px; height: 44px; }
.foot-links { list-style: none; padding: 0; margin: 0; display: grid; gap: 8px; }
.foot-links a { color: var(--gris-700); }
.foot-links a:hover { color: var(--azul-logistico); }

/* Reveal on scroll */
.reveal { opacity: 0; transform: translateY(12px); transition: opacity .6s ease, transform .6s ease; }
.reveal.in-view { opacity: 1; transform: translateY(0); }

/* Responsive */
@media (max-width: 900px) {
  .grid-2 { grid-template-columns: 1fr; }
  .cards { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 720px) {
  .cards { grid-template-columns: 1fr; }
  .nav-toggle { display: inline-flex; }
  .nav-links { position: absolute; top: 62px; right: 16px; background: var(--blanco); border: 1px solid var(--gris-200); box-shadow: var(--shadow-md); border-radius: 12px; padding: 12px; flex-direction: column; gap: 10px; display: none; }
  .nav.open .nav-links { display: flex; }
}