/* ==========================================================================
   1. VARIABLES Y RESET BÁSICO
   ========================================================================== */
:root {
  /* Colores Corporativos */
  --primary: #1b6e3a;
  --primary-dark: #14522d;
  --fg: #1a1a1a;
  --muted: #666;
  --line: #e5e5e5;
  --bg: #fff;
  
  /* Fuentes */
  --font-body: "Montserrat", system-ui, -apple-system, sans-serif;
  --font-title: "Oswald", system-ui, -apple-system, sans-serif;
}

* { box-sizing: border-box; }

html, body {
  height: 100%;
  margin: 0;
  padding: 0;
  display: flex;
  flex-direction: column;
}

body {
  font-family: var(--font-body);
  font-weight: 500;
  letter-spacing: .1px;
  color: var(--fg);
  background-color: var(--bg);
  line-height: 1.6;
  /* Fondo general opcional si lo deseas en toda la web */
  background-image: url('../images/bg.jpg');
  background-size: cover;
  background-position: center;
  background-attachment: fixed;
}

/* ==========================================================================
   2. TIPOGRAFÍA Y ELEMENTOS BASE
   ========================================================================== */
h1, h2, h3, h4, .h1, .h2, .price {
  font-family: var(--font-title);
  font-weight: 700;
  letter-spacing: .6px;
  text-transform: uppercase;
  margin-top: 0;
}

a { 
  color: inherit; 
  text-decoration: none; 
  transition: color 0.3s ease; 
}

a:hover { color: var(--primary); }

.muted, .lead, p.muted { color: var(--muted); }

main {
  flex: 1;
  width: 100%;
}

.wrap {
  max-width: 1100px;
  margin: 0 auto;
  padding: 0 20px;
}

/* ==========================================================================
   3. NAVEGACIÓN (HEADER)
   ========================================================================== */
.navbar {
  width: 100%;
  display: flex;
  justify-content: space-between;
  align-items: center;
  background-color: rgba(255, 255, 255, 0.9);
  padding: 10px 40px;
  z-index: 1000;
  box-shadow: 0 2px 5px rgba(0, 0, 0, 0.05);
  border-bottom: 1px solid var(--line);
}

.navbar-logo img {
  height: 60px;
  width: auto;
}

.navbar-nav {
  list-style: none;
  display: flex;
  gap: 25px;
  margin: 0;
  padding: 0;
}

.navbar-nav li a {
  font-family: var(--font-title);
  font-size: 16px;
  font-weight: 500;
  text-transform: uppercase;
}

.navbar-nav li.active a {
  color: var(--primary);
  border-bottom: 2px solid var(--primary);
}

/* ==========================================================================
   4. COMPONENTES REUTILIZABLES (Botones, Cards)
   ========================================================================== */
.btn-primary {
  display: inline-block;
  background: var(--primary);
  color: white;
  padding: 12px 25px;
  border-radius: 50px;
  font-weight: 600;
  text-transform: uppercase;
  font-size: 14px;
}

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

/* Estilo para las tarjetas de servicios y blog */
.card-item {
  background: white;
  padding: 25px;
  border-radius: 8px;
  border: 1px solid var(--line);
  box-shadow: 0 2px 10px rgba(0, 0, 0, 0.05);
  transition: transform 0.3s ease;
}

.card-item:hover {
  transform: translateY(-5px);
  border-color: var(--primary);
}

/* ==========================================================================
   5. FOOTER (Estilo oscuro unificado)
   ========================================================================== */
#footer {
  background-color: #111;
  color: #fff;
  padding: 60px 0 20px;
  margin-top: 50px;
  border-top: 1px solid #222;
}

.footer-content {
  display: flex;
  justify-content: space-between;
  align-items: center;
  max-width: 1100px;
  margin: 0 auto;
  padding: 0 20px;
}

.footer-left p {
  font-size: 14px;
  color: #ccc;
  margin: 8px 0;
}

.footer-logo {
  height: 60px;
  width: auto;
}

/* ==========================================================================
   6. RESPONSIVE
   ========================================================================== */
@media (max-width: 768px) {
  .navbar {
    flex-direction: column;
    padding: 20px;
  }
  
  .navbar-nav {
    margin-top: 20px;
    gap: 15px;
  }

  .footer-content {
    flex-direction: column;
    text-align: center;
    gap: 30px;
  }
}
/* ==========================================================================
   7. SECCIÓN PROYECTOS (PORTFOLIO)
   ========================================================================== */
.page-intro { padding: 80px 0 60px; text-align: center; max-width: 700px; margin: 0 auto; }
.page-intro h1 { font-size: 42px; margin: 0 0 20px; }
.page-intro p { font-size: 18px; color: var(--muted); font-weight: 300; }
.sep-line { width: 60px; height: 3px; background: var(--primary); margin: 30px auto 0; }

.project-row { 
    display: flex; 
    align-items: center; 
    gap: 60px; 
    padding: 80px 0; 
    border-bottom: 1px solid var(--line); 
}
.project-row:last-of-type { border-bottom: none; }
.project-row.reverse { flex-direction: row-reverse; }

.proj-img-col { flex: 1; }
.proj-img-col img {
    width: 100%;
    height: 300px; 
    object-fit: contain; 
    background-color: #fff; 
    display: block;
    border-radius: 8px;
    border: 1px solid var(--line);
    transition: transform .3s, box-shadow .3s;
}

.project-row:hover .proj-img-col img { 
    transform: scale(1.02); 
    box-shadow: 0 10px 30px rgba(0,0,0,0.08); 
    border-color: var(--primary); 
}

.proj-txt-col { flex: 1; padding: 20px 0; }
.proj-cat { 
    font-size: 12px; 
    text-transform: uppercase; 
    letter-spacing: 2px; 
    color: var(--muted); 
    margin-bottom: 12px; 
    font-weight: 600; 
    display: block; 
}
.proj-title { font-size: 32px; margin: 0 0 16px; line-height: 1.2; }
.proj-desc { color: var(--muted); font-size: 16px; margin-bottom: 24px; max-width: 480px; }

.proj-link { 
    display: inline-flex; 
    align-items: center; 
    gap: 8px; 
    font-weight: 600; 
    border-bottom: 1px solid var(--fg); 
    padding-bottom: 2px; 
}

@media (max-width: 850px) { 
    .project-row, .project-row.reverse { flex-direction: column; gap: 30px; padding: 50px 0; } 
}
/* ==========================================================================
   8. SECCIÓN HOME (HERO & SERVICIOS)
   ========================================================================== */
.hero { 
    position: relative;
    text-align: center;
    padding: 120px 20px; 
    background: linear-gradient(rgba(255, 255, 255, 0.85), rgba(255, 255, 255, 0.95)), 
                url('../images/back.jpg'); 
    background-size: cover;
    background-position: center;
    background-attachment: fixed;
    border-bottom: 1px solid var(--line); 
    margin-bottom: 40px; 
    display: flex;
    justify-content: center;
    align-items: center;
}

.hero-content { position: relative; z-index: 2; max-width: 800px; }
.hero h1 { font-size: 56px; margin: 0 0 20px; color: #111; line-height: 1.1; }
.hero p { font-size: 20px; color: #333; margin: 0 auto 35px; max-width: 600px; }
.hero-btns { display: flex; gap: 15px; justify-content: center; }

.grid-home { 
    display: grid; 
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr)); 
    gap: 30px; 
    margin: 60px 0; 
}

.card-home { 
    padding: 30px; 
    border: 1px solid var(--line); 
    border-radius: 8px; 
    transition: .3s; 
    background: #fff; 
    display: block; 
}
.card-home:hover { transform: translateY(-5px); box-shadow: 0 10px 30px rgba(0,0,0,0.05); border-color: var(--primary); }
.card-home i { font-size: 32px; color: var(--primary); margin-bottom: 20px; }
.card-home h3 { font-size: 24px; margin: 0 0 10px; }
.card-home p { color: var(--muted); font-size: 15px; margin-bottom: 20px; }

.cta-box { background: #111; color: #fff; padding: 50px; border-radius: 12px; text-align: center; margin: 60px 0; }
.cta-box h2 { color: #fff; font-size: 32px; margin-bottom: 10px; }
.cta-box p { color: #aaa; margin-bottom: 30px; font-size: 18px; }

/* Animaciones de revelado global */
[data-reveal] { opacity: 0; transform: translateY(20px); transition: .6s ease; }
[data-reveal].in { opacity: 1; transform: none; }

@media (max-width: 768px) {
    .hero { padding: 80px 20px; }
    .hero h1 { font-size: 38px; }
    .hero-btns { flex-direction: column; }
}
/* ==========================================================================
   9. NAVBAR & NAVIGATION (EXTENDIDO)
   ========================================================================== */
.navbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 14px 20px;
  border-bottom: 1px solid var(--line);
  background: #fff;
  position: sticky;
  top: 0;
  z-index: 1000;
}

.navbar-logo { display: flex; align-items: center; gap: 10px; }
.navbar-logo img { height: 42px; display: block; }

.navbar-nav {
  display: flex;
  gap: 14px;
  list-style: none;
  margin: 0;
  padding: 0;
  align-items: center;
}

.nav-link {
  font-family: var(--font-title);
  font-weight: 500;
  letter-spacing: .6px;
  text-transform: uppercase;
  color: var(--fg);
  padding: 8px 12px;
  border-radius: 10px;
  transition: all .2s ease;
}

.nav-link:hover { background: #f6f6f6; color: var(--primary); }

.nav-link.active {
  border: 1px solid var(--primary);
  background: #e9f5ee;
  font-weight: 600;
  color: var(--primary);
}

/* HAMBURGUESA (MÓVIL) */
.nav-toggle-checkbox { display: none; }
.nav-toggle {
  display: none;
  border: 1px solid #e6e6e6;
  background: #fff;
  border-radius: 12px;
  padding: 10px 12px;
  cursor: pointer;
}
.nav-toggle span {
  display: block;
  width: 22px;
  height: 2px;
  background: var(--fg);
  margin: 4px 0;
}

@media (max-width: 768px) {
  .nav-toggle { display: block; }
  .navbar-nav {
    display: none;
    position: absolute;
    left: 14px; right: 14px; top: 70px;
    flex-direction: column;
    background: #fff;
    border: 1px solid #eee;
    border-radius: 14px;
    padding: 15px;
    box-shadow: 0 12px 30px rgba(0,0,0,.1);
  }
  .nav-toggle-checkbox:checked ~ .navbar-nav { display: flex; }
  .nav-link { width: 100%; text-align: center; }
}
/* ==========================================================================
   10. FOOTER GLOBAL (ESTILO OSCURO)
   ========================================================================== */
#footer {
  background-color: #000;
  border-top: 1px solid #1a1a1a;
  padding: 60px 0;
  margin-top: 50px;
  color: #fff;
}

.footer-content {
  display: flex;
  justify-content: space-between;
  align-items: center;
  max-width: 1100px;
  margin: 0 auto;
  padding: 0 20px;
}

.footer-left p {
  margin: 12px 0;
  font-size: 14px;
  color: #ccc;
  display: flex;
  align-items: center;
}

.footer-left i {
  margin-right: 12px;
  width: 16px;
  text-align: center;
}

/* Colores específicos de iconos */
.footer-left .fa-phone { color: var(--primary); }
.footer-left .fa-whatsapp { color: #25D366; }
.footer-left .fa-envelope { color: #d63f1f; }

.footer-left a {
  color: #fff;
  transition: color 0.3s;
}

.footer-left a:hover { color: var(--primary); }

.footer-logo {
  height: 60px;
  width: auto;
}

@media (max-width: 768px) {
  .footer-content {
    flex-direction: column;
    text-align: center;
    gap: 40px;
  }
}
/* ==========================================================================
   11. SECCIÓN CONTACTO Y FORMULARIOS
   ========================================================================== */
.contact-grid { 
    display: grid; 
    grid-template-columns: 1fr 1.2fr; 
    gap: 60px; 
    margin-top: 40px; 
}

.contact-info h1 { font-size: 42px; margin-bottom: 20px; line-height: 1.1; }
.contact-info .lead { font-size: 18px; margin-bottom: 40px; font-weight: 300; }

.info-item { display: flex; align-items: flex-start; gap: 16px; margin-bottom: 24px; }
.info-item i { font-size: 22px; color: var(--primary); margin-top: 4px; }
.info-item h4 { margin: 0; font-size: 16px; font-weight: 600; font-family: var(--font-body); }
.info-item p { margin: 2px 0 0; color: var(--muted); font-size: 15px; }

/* Estilos de Formulario Reutilizables */
.contact-form { 
    background: #fff; 
    padding: 40px; 
    border-radius: 12px; 
    border: 1px solid var(--line); 
    box-shadow: 0 10px 30px rgba(0,0,0,0.03); 
}

.form-group { margin-bottom: 20px; }
.form-label { 
    display: block; 
    margin-bottom: 8px; 
    font-weight: 600; 
    font-size: 12px; 
    text-transform: uppercase; 
    color: var(--muted); 
}

.form-control { 
    width: 100%; 
    padding: 12px 16px; 
    border: 1px solid var(--line); 
    border-radius: 8px; 
    font-family: inherit; 
    font-size: 15px; 
    background: #fafafa; 
    transition: all 0.2s ease; 
}

.form-control:focus { 
    outline: none; 
    border-color: var(--primary); 
    background: #fff; 
    box-shadow: 0 0 0 3px rgba(27, 110, 58, 0.1);
}

textarea.form-control { resize: vertical; min-height: 120px; }

.btn-submit { 
    width: 100%; 
    padding: 14px; 
    background: var(--fg); 
    color: #fff; 
    border: none; 
    border-radius: 50px; 
    font-weight: 600; 
    font-size: 16px; 
    cursor: pointer; 
    transition: .2s; 
}

.btn-submit:hover { 
    background: var(--primary); 
    transform: translateY(-2px); 
    box-shadow: 0 5px 15px rgba(27,110,58,0.2); 
}

@media (max-width: 800px) { 
    .contact-grid { grid-template-columns: 1fr; gap: 40px; } 
}
/* ==========================================================================
   12. ESTILOS DE ARTÍCULOS TÉCNICOS (BLOG)
   ========================================================================== */
.article-header { text-align: center; padding: 60px 20px 40px; }
.article-meta { font-size: 13px; font-weight: 600; color: var(--primary); text-transform: uppercase; letter-spacing: 1px; margin-bottom: 15px; display: block;}
.article-title { font-family: var(--font-title); font-size: 42px; line-height: 1.2; margin: 0 0 20px; color: #111; }
.article-date { color: var(--muted); font-size: 14px; }

.article-hero { width: 100%; height: auto; margin-bottom: 60px; border-radius: 4px; overflow: hidden; }
.article-hero img { width: 100%; height: auto; display: block; }

.content { font-size: 18px; color: #333; line-height: 1.8; }
.content h2 { font-family: var(--font-title); margin-top: 50px; margin-bottom: 20px; font-size: 28px; color: #000; border-bottom: 2px solid var(--primary); display: inline-block; padding-bottom: 5px; }

/* Caja resaltada para fórmulas o tips */
.highlight-box { background: #f4f8f5; border-left: 4px solid var(--primary); padding: 30px; margin: 40px 0; border-radius: 0 4px 4px 0; }
.highlight-box h3 { margin-top: 0; color: var(--primary); font-family: var(--font-title); }
.formula { font-size: 22px; font-weight: 700; color: #111; font-family: 'Courier New', monospace; }

/* Tablas Técnicas */
.table-container { overflow-x: auto; margin: 30px 0; border-radius: 6px; border: 1px solid var(--line); }
table { width: 100%; border-collapse: collapse; min-width: 500px; }
th { background: #f4f4f4; text-align: left; padding: 15px; font-family: var(--font-title); font-weight: 500; border-bottom: 2px solid #ddd; }
td { padding: 15px; border-bottom: 1px solid #eee; font-size: 16px; }
tr:nth-child(even) { background: #fafafa; }

/* Footer del artículo (CTA) */
.article-cta { background: #111; color: #fff; padding: 50px; text-align: center; border-radius: 8px; margin-top: 80px; }
.article-cta h3 { font-family: var(--font-title); font-size: 24px; color: #fff; }

@media (max-width: 768px) {
  .article-title { font-size: 32px; }
}

/* ==========================================================================
   13. ESTILOS ESPECÍFICOS: TORNILLERÍA Y PLANOS
   ========================================================================== */
   
/* Caja tipo plano (azul oscuro) */
.blueprint-box { 
    background: #0d2b45; 
    color: #fff; 
    padding: 40px; 
    border-radius: 8px; 
    margin: 40px 0; 
    text-align: center;
    box-shadow: inset 0 0 50px rgba(0,0,0,0.2);
    border: 1px dashed rgba(255,255,255,0.3);
}

.blueprint-title { 
    font-family: var(--font-title); 
    margin-bottom: 20px; 
    opacity: 0.9; 
    letter-spacing: 2px;
    font-size: 14px;
}

.blueprint-box img {
    max-width: 100%;
    height: auto;
    filter: brightness(0) invert(1); /* Pone la imagen en blanco si es negra */
}

/* Ajuste de listas dentro de los artículos */
.content ul {
    padding-left: 20px;
    margin-bottom: 30px;
}

.content ul li {
    margin-bottom: 12px;
}
/* Estilos para Casos de Éxito / Proyectos Individuales */
.project-header { margin-bottom: 40px; border-bottom: 1px solid var(--line); padding-bottom: 20px; }
.tech-sheet { 
    background: #fff; 
    border: 1px solid var(--line); 
    padding: 24px; 
    border-radius: 8px; 
    position: sticky; 
    top: 100px; 
    box-shadow: 0 4px 20px rgba(0,0,0,0.03); 
}
.tech-item { margin-bottom: 16px; border-bottom: 1px solid #f0f0f0; padding-bottom: 12px; }
.tech-label { display: block; font-size: 11px; color: var(--muted); font-weight: 700; text-transform: uppercase; }
.tech-value { font-size: 15px; font-weight: 600; }
/* ==========================================================================
   14. PROYECTOS TÉCNICOS (DETALLE)
   ========================================================================== */
.project-header { margin-bottom: 40px; border-bottom: 1px solid var(--line); padding-bottom: 20px; }
.project-grid { display: grid; grid-template-columns: 2fr 1fr; gap: 50px; }

/* Sidebar Ficha Técnica */
.tech-sheet { 
    background: #fff; 
    border: 1px solid var(--line); 
    padding: 24px; 
    border-radius: 8px; 
    position: sticky; 
    top: 100px; 
    box-shadow: 0 4px 20px rgba(0,0,0,0.03); 
}
.tech-item { margin-bottom: 16px; border-bottom: 1px solid #f0f0f0; padding-bottom: 12px; }
.tech-label { display: block; font-size: 11px; color: var(--muted); font-weight: 700; text-transform: uppercase; margin-bottom: 4px; }
.tech-value { font-size: 15px; font-weight: 600; color: #222; }

/* Listas de beneficios */
.feature-list { list-style: none; padding: 0; margin-bottom: 30px; }
.feature-list li { margin-bottom: 15px; padding-left: 30px; position: relative; }
.feature-list li::before { 
    content: "\f058"; 
    font-family: "Font Awesome 6 Free"; 
    font-weight: 900; 
    color: var(--primary); 
    position: absolute; 
    left: 0; 
}

@media (max-width: 800px) { .project-grid { grid-template-columns: 1fr; } .tech-sheet { position: static; } }