/* =====================================
  Tema: Agro Colombia
  Base HEX primario: #2d3889
  Triada real:
  --color-primary: #2d3889;   (azul profundo)
  --color-secondary: #892d38; (rojo púrpura)
  --color-accent: #38892d;    (verde intenso)
  ===================================== */
:root {
  --color-primary: #2d3889;
  --color-secondary: #892d38;
  --color-accent: #38892d;
  --bg: #0f122b;
  --surface: #11153a;
  --text: #e9ecff;
  --muted: #b7bce8;

  --radius: 1.25rem;
  --shadow: 0 10px 30px rgba(0,0,0,.25);
  --maxw: 1200px;
}

/* Reset */
* { box-sizing: border-box; }
html, body { height: 100%; scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: "Poppins", system-ui, -apple-system, Segoe UI, Roboto, Ubuntu, "Helvetica Neue", Arial, "Noto Sans";
  color: var(--text);
  background: radial-gradient(1200px 600px at 70% -10%, rgba(45,56,137,.25), transparent 60%), var(--bg);
  
  /* MEJORA: Tipografía base fluida y mejor interlineado para legibilidad */
  font-size: clamp(1rem, 1.5vw, 1.125rem);
  line-height: 1.6;
}

/* MEJORA: Escala de tipografía fluida para títulos */
h1, h2, h3, h4, h5, h6 {
  line-height: 1.2;
  margin: 0 0 .75rem 0;
}
h1 { font-size: clamp(2.5rem, 5vw, 4rem); }
h2 { font-size: clamp(2rem, 4vw, 3rem); }
h3 { font-size: clamp(1.5rem, 3vw, 2rem); }


img { display:block; max-width:100%; height:auto; }
.container { width: min(var(--maxw), 100% - 2rem); margin-inline:auto; }

/* Skip link */
.skip-link {
  position:absolute; left:-999px; top:auto; width:1px; height:1px; overflow:hidden;
}
.skip-link:focus {
  left: 1rem; top: 1rem; width:auto; height:auto; z-index:9999;
  background: var(--color-primary); color:#fff; padding:.5rem .75rem; border-radius:.5rem;
}

/* Header */
.site-header {
  position: sticky; top:0; z-index:1000; backdrop-filter: blur(8px);
  background: color-mix(in oklab, var(--bg) 70%, transparent);
  border-bottom: 1px solid color-mix(in oklab, var(--color-primary) 30%, transparent);
}
.header-inner {
  display:flex; align-items:center; justify-content:space-between; padding: .75rem 0;
}
.brand { display:flex; align-items:center; gap:.6rem; text-decoration:none; color:var(--text); }
.brand-mark { background:var(--color-primary); color:#fff; width:2.1rem; height:2.1rem; border-radius:.6rem; display:grid; place-items:center; font-weight:700; box-shadow:var(--shadow); }
.brand-name { font-weight:700; letter-spacing:.3px; }

/* Nav */
#nav-toggle { display:none; }
.hamburger { display:none; cursor:pointer; padding:.25rem; }
.hamburger span { display:block; width:26px; height:3px; background:var(--text); margin:5px 0; border-radius:3px; }

.main-nav ul { list-style:none; display:flex; gap:1rem; padding:0; margin:0; }
.main-nav a {
  color: var(--text); text-decoration:none; font-weight:500; padding:.5rem .75rem; border-radius:.6rem;
}
.main-nav a:hover { background: color-mix(in oklab, var(--color-primary) 30%, transparent); }

/* MEJORA: Transiciones para interactividad suave */
.btn, .card, .main-nav a, .brand, .hero-gallery img {
    transition: transform 0.3s ease, background-color 0.3s ease, box-shadow 0.3s ease, border-color 0.3s ease;
}

/* Responsive nav */
@media (max-width: 900px) {
  .hamburger { display:block; }
  .main-nav { 
    position:absolute; inset: calc(100% + 1px) 0 auto 0; background: var(--surface); 
    border-bottom:1px solid color-mix(in oklab, var(--color-primary) 35%, transparent);
    
    /* MEJORA: Animación de menú desplegable en lugar de display:none */
    transform: translateY(-100%);
    transition: transform 0.4s ease-out, visibility 0.4s ease-out;
    visibility: hidden;
  }
  #nav-toggle:checked ~ .main-nav { 
    transform: translateY(0);
    visibility: visible;
  }
  .main-nav ul { flex-direction:column; gap:0; }
  .main-nav a { display:block; padding:1rem 1.25rem; border-radius: 0; }
  
  /* MEJORA: Animación del icono de hamburguesa a "X" */
  .hamburger span { transition: transform 0.3s ease, opacity 0.3s ease; }
  #nav-toggle:checked ~ .hamburger span:nth-child(1) { transform: translateY(8px) rotate(45deg); }
  #nav-toggle:checked ~ .hamburger span:nth-child(2) { opacity: 0; }
  #nav-toggle:checked ~ .hamburger span:nth-child(3) { transform: translateY(-8px) rotate(-45deg); }
}

/* Heroes & Section Headers */
.hero, .section-header {
  position:relative;
  display:grid;
  align-items:center;
  isolation:isolate;
}
.hero { min-height: 100dvh; }
.section-header { padding: clamp(4rem, 8vw, 8rem) 0; }

.hero .hero-bg, .section-header .hero-bg {
  position:absolute; inset:0; z-index:-2;
  background-size: cover; background-position:center;
  filter: saturate(.9) contrast(1.05);
}
.hero::after, .section-header::after {
  content:""; position:absolute; inset:0; z-index:-1;
  background: linear-gradient(180deg, rgba(15,18,43,.35), rgba(15,18,43,.75));
}
.hero-inner, .section-header .container { display:grid; gap:2rem; }
.hero-copy { max-width: 750px; }
.lead { color: var(--muted); font-weight:500; margin: 0 0 1.25rem 0; max-width: 65ch; }

/* MEJORA: Animación de entrada para el texto del héroe principal */
@keyframes fadeIn {
    from { opacity: 0; transform: translateY(20px); }
    to { opacity: 1; transform: translateY(0); }
}
#inicio .hero-copy {
    animation: fadeIn 1s 0.2s ease-out both;
}

/* Botones */
.btn {
  display:inline-block; text-decoration:none; font-weight:600; border-radius:.9rem; padding:.9rem 1.2rem;
  border: 2px solid transparent;
}
.btn-primary { background: var(--color-primary); color:#fff; }
.btn-secondary { background: transparent; color: var(--text); border-color: var(--color-accent); }

/* MEJORA: Hover con efecto de "levantamiento" para botones */
.btn:hover {
  transform: translateY(-3px);
  box-shadow: 0 12px 25px rgba(0,0,0,.3);
}
.btn-primary:hover { background: var(--color-secondary); }
.btn-secondary:hover { background: var(--color-accent); color:#fff; }

/* Hero backgrounds */
.hero-1 .hero-bg { background-image: url('hero1.jpg'); }
.hero-2 .hero-bg { background-image: url('hero2.jpg'); }
.hero-3 .hero-bg { background-image: url('hero3.jpg'); }
.hero-4 .hero-bg { background-image: url('hero4.jpg'); }

/* Hero 1 gallery responsive */
.hero-gallery { display: grid; gap: 1rem; margin-top: 1.5rem; }
.hero-gallery figure {
  background: color-mix(in oklab, var(--surface) 70%, transparent);
  border-radius: .9rem; overflow: hidden; box-shadow: var(--shadow);
}
.hero-gallery img { width: 100%; height: auto; display: block; object-fit: cover; }
.hero-gallery img:hover { transform: scale(1.05); }

@media (max-width: 768px) { .hero-gallery { grid-template-columns: 1fr; } .hero-gallery img { height: auto; } }
@media (min-width: 769px) and (max-width: 1199px) { .hero-gallery { grid-template-columns: repeat(2, 1fr); } .hero-gallery img { height: 300px; } }
@media (min-width: 1200px) { .hero-gallery { grid-template-columns: repeat(3, 1fr); } .hero-gallery img { height: 320px; } }

/* NUEVO: Icon List (Reemplaza emojis) */
.icon-list { list-style: none; padding: 0; margin: 2rem 0 0 0; display: grid; gap: 2rem; }
.icon-list li { display: flex; align-items: flex-start; gap: 1rem; }
.icon-list .icon-wrapper {
  background-color: color-mix(in oklab, var(--color-accent) 20%, transparent);
  border-radius: .8rem; width: 50px; height: 50px;
  display: grid; place-items: center; flex-shrink: 0;
}
.icon-wrapper svg { color: var(--color-accent); width: 28px; height: 28px; }
.icon-list h3 { margin: 0 0 0.25rem 0; font-size: 1.25rem; }
.icon-list p { margin: 0; color: var(--muted); }
@media(min-width: 800px) { .icon-list { grid-template-columns: repeat(2, 1fr); } }
@media(min-width: 1100px) { .icon-list { grid-template-columns: 1fr; } }


/* MEJORA: Sistema de grid automático y flexible. Reemplaza .grid-3 y .grid-4 */
.auto-grid {
    display: grid;
    gap: 1.5rem;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
}
.cards-container, .testimonials-container { padding: clamp(2rem, 5vw, 4rem) 0; }

/* Cards */
.card {
  background: var(--surface); padding:1.25rem; border-radius: var(--radius);
  border:1px solid color-mix(in oklab, var(--color-primary) 30%, transparent); box-shadow: var(--shadow);
}
.card h3 { margin-top:0; }
/* MEJORA: Efecto hover para tarjetas */
.card:hover {
    transform: translateY(-6px);
    box-shadow: 0 15px 35px rgba(0,0,0,.3);
    border-color: color-mix(in oklab, var(--color-accent) 50%, transparent);
}


/* Testimonios */
.testimonial {
  background: var(--surface); padding:1.25rem; border-radius: var(--radius);
  border:1px solid color-mix(in oklab, var(--color-primary) 30%, transparent);
  height: 100%; /* Para que todas las tarjetas en auto-grid tengan la misma altura */
  display: flex; flex-direction: column; justify-content: space-between;
}
.testimonial p { margin: 0 0 1rem 0; }
/* MEJORA: Estilos para el nuevo footer del testimonio */
.testimonial footer {
  display: flex; justify-content: space-between; align-items: center;
  margin-top: auto; padding-top: .75rem; border-top: 1px solid color-mix(in oklab, var(--color-primary) 20%, transparent);
  color:var(--muted); font-size:.9rem;
}
cite { font-style: normal; }
.star-rating { display: flex; gap: .2rem; }
.star-rating svg { color: #f5b32e; fill: currentColor; width: 18px; height: 18px; }


/* Badges */
.badges { padding: clamp(2rem, 5vw, 4rem) 0; }
.badge {
  display:flex; align-items:center; gap:.8rem; background: var(--surface);
  padding:1rem 1.25rem; border-radius:var(--radius);
  border:1px solid color-mix(in oklab, var(--color-primary) 30%, transparent);
  font-weight: 500;
}
.badge .emoji { font-size: 1.5rem; }

/* CTA Final & Footer */
.cta-final { padding: clamp(4rem, 8vw, 8rem) 0; text-align: center; }
.stacked { display: grid; justify-items: center; gap: 1rem; }
.stacked > * { max-width: 65ch; }
.stacked .btn { margin-top: 1rem; }
.site-footer {
  padding: 1.5rem 0; text-align: center; font-size: .9rem; color: var(--muted);
  background: color-mix(in oklab, var(--surface) 50%, transparent);
}
.footer-inner { display: flex; flex-direction: column; gap: .5rem; }
.site-footer a { color: var(--muted); text-decoration: none; }
.site-footer a:hover { color: var(--text); text-decoration: underline; }

@media(min-width: 800px) {
  .footer-inner { flex-direction: row; justify-content: space-between; }
}