/* =========================================================
   MAKRA S.A.S — Hoja de estilos principal
   Paleta: navy industrial + amarillo de seguridad + gris concreto
   ========================================================= */

:root{
  --navy-900:#0B1420;
  --navy-800:#0F1B2D;
  --navy-700:#16283F;
  --navy-600:#20395A;
  --yellow:#F5B301;
  --yellow-dark:#D99A00;
  --gray-100:#F5F6F8;
  --gray-200:#E8EBEF;
  --gray-400:#B5BDC9;
  --gray-600:#6B7280;
  --gray-800:#3A4453;
  --white:#FFFFFF;

  --font-head:'Poppins', Arial, sans-serif;
  --font-body:'Inter', Arial, sans-serif;

  --radius:14px;
  --radius-sm:8px;
  --shadow-sm:0 2px 10px rgba(15,27,45,0.08);
  --shadow-md:0 10px 30px rgba(15,27,45,0.14);
  --container:1180px;
  --transition:.25s ease;
}

*,*::before,*::after{ box-sizing:border-box; }
html{ scroll-behavior:smooth; }
body{
  margin:0;
  font-family:var(--font-body);
  color:var(--navy-800);
  background:var(--white);
  line-height:1.6;
  -webkit-font-smoothing:antialiased;
}
img{ max-width:100%; display:block; }
a{ color:inherit; text-decoration:none; }
ul{ margin:0; padding:0; list-style:none; }
h1,h2,h3,h4{ font-family:var(--font-head); font-weight:700; margin:0 0 .5em; line-height:1.2; color:var(--navy-900); }
p{ margin:0 0 1em; color:var(--gray-800); }

.container{
  width:100%;
  max-width:var(--container);
  margin:0 auto;
  padding:0 24px;
}

/* ===== Botones ===== */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  padding:14px 28px;
  border-radius:999px;
  font-weight:600;
  font-size:.95rem;
  border:2px solid transparent;
  cursor:pointer;
  transition:transform var(--transition), box-shadow var(--transition), background var(--transition), color var(--transition);
  white-space:nowrap;
}
.btn:hover{ transform:translateY(-2px); }
.btn-primary{ background:var(--yellow); color:var(--navy-900); box-shadow:var(--shadow-sm); }
.btn-primary:hover{ background:var(--yellow-dark); box-shadow:var(--shadow-md); }
.btn-outline{ border-color:rgba(255,255,255,0.6); color:var(--white); }
.btn-outline:hover{ background:rgba(255,255,255,0.12); }
.btn-sm{ padding:10px 18px; font-size:.85rem; }
.btn-lg{ padding:16px 34px; font-size:1.05rem; }
.btn-block{ width:100%; }

/* ===== Header ===== */
.site-header{
  position:sticky; top:0; z-index:100;
  background:rgba(11,20,32,0.92);
  backdrop-filter:blur(8px);
  border-bottom:1px solid rgba(255,255,255,0.06);
}
.header-inner{
  display:flex; align-items:center; justify-content:space-between;
  height:78px;
  gap:20px;
}
.brand img{ height:40px; }
.brand{ display:flex; flex-direction:column; line-height:1; gap:2px; }
.brand-mark{
  font-family:var(--font-head);
  font-weight:800;
  font-size:1.5rem;
  letter-spacing:1px;
  background:linear-gradient(120deg, #E8ECF1 0%, var(--yellow) 55%, #C98A2C 100%);
  -webkit-background-clip:text;
  background-clip:text;
  -webkit-text-fill-color:transparent;
  color:var(--yellow);
}
.brand-sub{
  font-size:.62rem;
  font-weight:700;
  letter-spacing:2px;
  color:var(--gray-400);
}
.brand-mark-footer{ font-size:1.7rem; }
.brand-sub-footer{ display:block; margin-bottom:14px; }
.main-nav{ display:flex; align-items:center; gap:20px; }
.nav-link{
  color:var(--gray-200);
  font-weight:500;
  font-size:.88rem;
  padding:6px 2px;
  border-bottom:2px solid transparent;
  white-space:nowrap;
  transition:color var(--transition), border-color var(--transition);
}
.nav-link:hover, .nav-link.active{ color:var(--yellow); border-color:var(--yellow); }

.header-actions{ display:flex; align-items:center; gap:14px; }
.phone-pill{
  display:flex; align-items:center; gap:8px;
  color:var(--gray-200);
  font-size:.9rem;
  font-weight:500;
}
.phone-pill:hover{ color:var(--yellow); }

.nav-toggle{
  display:none;
  flex-direction:column;
  justify-content:center;
  gap:5px;
  width:40px; height:40px;
  background:transparent;
  border:none;
  cursor:pointer;
}
.nav-toggle span{
  display:block; height:2px; width:100%;
  background:var(--white);
  border-radius:2px;
  transition:transform var(--transition), opacity var(--transition);
}
.nav-toggle.open span:nth-child(1){ transform:translateY(7px) rotate(45deg); }
.nav-toggle.open span:nth-child(2){ opacity:0; }
.nav-toggle.open span:nth-child(3){ transform:translateY(-7px) rotate(-45deg); }

/* ===== Hero ===== */
.hero{
  position:relative;
  min-height:88vh;
  display:flex;
  align-items:center;
  background-size:cover;
  background-position:center top;
  background-color:var(--navy-900);
  overflow:hidden;
}
.hero-overlay{
  position:absolute; inset:0;
  background:linear-gradient(100deg, rgba(8,14,23,0.82) 0%, rgba(8,14,23,0.68) 40%, rgba(8,14,23,0.32) 70%, rgba(8,14,23,0.55) 100%);
}
.hero-content{ position:relative; z-index:1; max-width:760px; padding-top:60px; padding-bottom:60px; }
.eyebrow{
  display:inline-block;
  color:var(--yellow);
  font-weight:700;
  letter-spacing:1.5px;
  text-transform:uppercase;
  font-size:.8rem;
  margin-bottom:16px;
}
.hero h1{ color:var(--white); font-size:clamp(2rem, 4.5vw, 3.2rem); margin-bottom:20px; }
.hero-sub{ color:var(--gray-200); font-size:1.05rem; max-width:620px; margin-bottom:32px; }
.hero-actions{ display:flex; gap:16px; flex-wrap:wrap; }

/* ===== Stats ===== */
.stats{ background:var(--navy-800); padding:44px 0; }
.stats-grid{
  display:grid;
  grid-template-columns:repeat(4, 1fr);
  gap:24px;
  text-align:center;
}
.stat-item{ display:flex; flex-direction:column; gap:4px; }
.stat-number{ font-family:var(--font-head); font-size:2.4rem; font-weight:800; color:var(--yellow); }
.stat-label{ color:var(--gray-200); font-size:.85rem; letter-spacing:.3px; }

/* ===== Secciones genéricas ===== */
.section{ padding:96px 0; }
.section-alt{ background:var(--gray-100); }
.section-tag{
  display:inline-block;
  color:var(--yellow-dark);
  background:rgba(245,179,1,0.12);
  padding:6px 14px;
  border-radius:999px;
  font-weight:700;
  font-size:.78rem;
  letter-spacing:.5px;
  text-transform:uppercase;
  margin-bottom:16px;
}
.section-head{ max-width:680px; margin:0 auto 48px; text-align:center; }
.section-head h2{ font-size:clamp(1.6rem, 3vw, 2.2rem); }
.section-head p{ color:var(--gray-600); }

/* ===== Nosotros ===== */
.about-grid{
  display:grid;
  grid-template-columns:1fr 1.1fr;
  gap:60px;
  align-items:center;
}
.about-image img{ border-radius:var(--radius); box-shadow:var(--shadow-md); }
.about-logo-card{
  background:var(--white);
  border:1.5px solid var(--gray-200);
  border-radius:var(--radius);
  box-shadow:var(--shadow-md);
  padding:48px 32px;
  display:flex;
  flex-direction:column;
  align-items:center;
  text-align:center;
  gap:20px;
}
.about-logo-card img{ max-width:280px; }
.about-logo-card span{ font-size:.85rem; font-weight:600; color:var(--gray-600); }
.about-logo-card .brand-mark{ font-size:2.6rem; }
.about-logo-card .brand-sub{ color:var(--gray-600); }
.about-logo-card .tagline{ margin-top:4px; font-size:.9rem; color:var(--gray-600); text-align:center; font-weight:500; }
.about-logo-card .about-stats{ display:flex; gap:28px; margin-top:14px; padding-top:20px; border-top:1px solid var(--gray-200); width:100%; justify-content:center; }
.about-logo-card .about-stats div{ text-align:center; }
.about-logo-card .about-stats strong{ display:block; font-family:var(--font-head); font-size:1.4rem; color:var(--navy-900); }
.about-logo-card .about-stats span{ font-size:.72rem; text-transform:uppercase; letter-spacing:.4px; }

/* ===== Líneas de negocio ===== */
.business-grid{ grid-template-columns:repeat(4, 1fr); }
.business-card{
  background:var(--white);
  border:1px solid var(--gray-200);
  border-top:3px solid transparent;
  border-radius:var(--radius-sm);
  padding:30px 26px;
  text-align:left;
  display:flex;
  flex-direction:column;
  align-items:flex-start;
  gap:14px;
  transition:transform var(--transition), box-shadow var(--transition), border-color var(--transition);
}
.business-card:hover{ transform:translateY(-4px); box-shadow:var(--shadow-md); border-top-color:var(--yellow); }
.business-icon-badge{
  width:52px; height:52px;
  flex-shrink:0;
  display:flex; align-items:center; justify-content:center;
  border-radius:12px;
  background:var(--navy-900);
  color:var(--yellow);
}
.business-icon-badge svg{ width:26px; height:26px; }
.business-card h3{ font-size:1.02rem; margin-bottom:0; }
.business-card p{ font-size:.85rem; color:var(--gray-600); margin:0; line-height:1.55; }

.subsection-title{
  font-size:1.15rem;
  color:var(--navy-900);
  margin:40px 0 22px;
  padding-bottom:10px;
  border-bottom:2px solid var(--gray-200);
}
.subsection-title:first-of-type{ margin-top:0; }

/* ===== Page hero (subpáginas de línea de negocio) ===== */
.page-hero{
  background:linear-gradient(120deg, var(--navy-900), var(--navy-700));
  padding:56px 0 52px;
}
.breadcrumb{ display:flex; gap:8px; align-items:center; color:var(--gray-400); font-size:.85rem; margin-bottom:18px; }
.breadcrumb a{ color:var(--gray-400); }
.breadcrumb a:hover{ color:var(--yellow); }
.page-hero h1{ color:var(--white); font-size:clamp(1.7rem, 4vw, 2.5rem); margin-bottom:14px; }
.page-hero p{ color:var(--gray-200); max-width:640px; margin:0; }
.page-hero .business-icon-badge{ width:60px; height:60px; margin-bottom:18px; background:var(--yellow); color:var(--navy-900); }
.page-hero .business-icon-badge svg{ width:30px; height:30px; }

/* ===== Consultoría: tarjetas de servicio ===== */
.features-grid{ grid-template-columns:repeat(2, 1fr); }
.feature-card{
  background:var(--white);
  border:1px solid var(--gray-200);
  border-radius:var(--radius);
  padding:32px 28px;
  display:flex; flex-direction:column; gap:12px;
  box-shadow:var(--shadow-sm);
}
.feature-card h3{ font-size:1.08rem; margin-bottom:0; }
.feature-card p{ font-size:.9rem; color:var(--gray-600); margin:0; }

/* ===== Nuestros clientes ===== */
.clients-wrap{
  background:var(--white);
  border-radius:var(--radius);
  padding:20px;
  box-shadow:var(--shadow-sm);
}
.clients-wrap img{ border-radius:var(--radius-sm); }
.about-text h2{ font-size:clamp(1.6rem, 3vw, 2.1rem); }
.check-list{ margin-top:20px; display:flex; flex-direction:column; gap:12px; }
.check-list li{
  position:relative;
  padding-left:30px;
  color:var(--gray-800);
  font-weight:500;
}
.check-list li::before{
  content:'✓';
  position:absolute; left:0; top:0;
  width:20px; height:20px;
  background:var(--yellow);
  color:var(--navy-900);
  border-radius:50%;
  font-size:.75rem;
  font-weight:800;
  display:flex; align-items:center; justify-content:center;
}

/* ===== Grids de tarjetas ===== */
.grid{ display:grid; gap:28px; }
.projects-grid{ grid-template-columns:repeat(3, 1fr); }
.machines-grid{ grid-template-columns:repeat(4, 1fr); }

.card{
  background:var(--white);
  border-radius:var(--radius);
  overflow:hidden;
  box-shadow:var(--shadow-sm);
  transition:transform var(--transition), box-shadow var(--transition);
  display:flex; flex-direction:column;
}
.card:hover{ transform:translateY(-6px); box-shadow:var(--shadow-md); }
.card-media{ aspect-ratio:4/3; overflow:hidden; background:var(--navy-800); }
.card-media img{ width:100%; height:100%; object-fit:cover; transition:transform .4s ease; }
.card:hover .card-media img{ transform:scale(1.06); }
.card-body{ padding:20px 22px 24px; display:flex; flex-direction:column; gap:8px; flex:1; }
.card-body h3{ font-size:1.05rem; margin-bottom:2px; }
.card-body p{ font-size:.9rem; color:var(--gray-600); margin-bottom:12px; }
.machine-card .card-body{ align-items:flex-start; }
.badge{
  align-self:flex-start;
  background:var(--navy-800);
  color:var(--yellow);
  font-size:.72rem;
  font-weight:700;
  text-transform:uppercase;
  letter-spacing:.4px;
  padding:4px 10px;
  border-radius:999px;
}

.filter-bar{ display:flex; justify-content:center; gap:10px; flex-wrap:wrap; margin-bottom:36px; }
.filter-btn{
  padding:9px 20px;
  border-radius:999px;
  border:1.5px solid var(--gray-200);
  background:var(--white);
  color:var(--gray-800);
  font-weight:600;
  font-size:.85rem;
  cursor:pointer;
  transition:all var(--transition);
}
.filter-btn:hover{ border-color:var(--yellow); }
.filter-btn.active{ background:var(--navy-900); border-color:var(--navy-900); color:var(--white); }

.machines-note{ text-align:center; margin-top:36px; color:var(--gray-600); }
.machines-note a{ color:var(--yellow-dark); font-weight:700; }

/* ===== CTA band ===== */
.cta-band{ background:linear-gradient(120deg, var(--navy-900), var(--navy-700)); padding:56px 0; }
.cta-inner{
  display:flex; align-items:center; justify-content:space-between; gap:24px; flex-wrap:wrap;
}
.cta-inner h2{ color:var(--white); margin-bottom:6px; font-size:clamp(1.3rem, 2.6vw, 1.8rem); }
.cta-inner p{ color:var(--gray-200); margin:0; }

/* ===== Contacto ===== */
.contact-grid{
  display:grid;
  grid-template-columns:1fr 1fr;
  gap:60px;
  align-items:start;
}
.contact-lead{ color:var(--gray-600); }
.contact-cards{ display:grid; grid-template-columns:1fr 1fr; gap:16px; margin-top:24px; }
.contact-card{
  display:flex; align-items:flex-start; gap:12px;
  background:var(--gray-100);
  border-radius:var(--radius-sm);
  padding:16px;
  transition:background var(--transition);
}
a.contact-card:hover{ background:var(--gray-200); }
.contact-card strong{ display:block; font-size:.85rem; color:var(--navy-900); }
.contact-card span{ font-size:.85rem; color:var(--gray-600); }
.contact-icon{ font-size:1.3rem; line-height:1; }

.social-row{ display:flex; gap:12px; margin-top:28px; }
.social-btn{
  width:42px; height:42px;
  display:flex; align-items:center; justify-content:center;
  background:var(--navy-900);
  color:var(--white);
  border-radius:50%;
  transition:background var(--transition), transform var(--transition);
}
.social-btn:hover{ background:var(--yellow); color:var(--navy-900); transform:translateY(-3px); }

.contact-form{
  background:var(--gray-100);
  border-radius:var(--radius);
  padding:36px;
  display:flex; flex-direction:column; gap:16px;
}
.contact-form label{ display:flex; flex-direction:column; gap:6px; font-size:.85rem; font-weight:600; color:var(--navy-800); }
.contact-form input, .contact-form select, .contact-form textarea{
  font-family:var(--font-body);
  padding:12px 14px;
  border-radius:var(--radius-sm);
  border:1.5px solid var(--gray-200);
  font-size:.95rem;
  background:var(--white);
  color:var(--navy-900);
  resize:vertical;
}
.contact-form input:focus, .contact-form select:focus, .contact-form textarea:focus{
  outline:none; border-color:var(--yellow);
}
.form-row{ display:grid; grid-template-columns:1fr 1fr; gap:16px; }
.form-note{ font-size:.78rem; color:var(--gray-600); margin-top:-4px; }

/* ===== Footer ===== */
.site-footer{ background:var(--navy-900); color:var(--gray-200); padding-top:64px; }
.footer-inner{
  display:grid;
  grid-template-columns:1.4fr 1fr 1fr;
  gap:40px;
  padding-bottom:48px;
  border-bottom:1px solid rgba(255,255,255,0.08);
}
.footer-brand p{ color:var(--gray-400); font-size:.9rem; margin-top:16px; }
.footer-col h4{ color:var(--white); font-size:.95rem; margin-bottom:16px; }
.footer-col{ display:flex; flex-direction:column; gap:10px; }
.footer-col a, .footer-col span{ color:var(--gray-400); font-size:.9rem; transition:color var(--transition); }
.footer-col a:hover{ color:var(--yellow); }
.footer-bottom{ padding:20px 0; }
.footer-bottom .container{
  display:flex; justify-content:space-between; flex-wrap:wrap; gap:8px;
  font-size:.8rem; color:var(--gray-400);
}

/* ===== Botón flotante WhatsApp ===== */
.whatsapp-float{
  position:fixed; right:22px; bottom:22px; z-index:200;
  width:58px; height:58px;
  background:#25D366;
  color:var(--white);
  border-radius:50%;
  display:flex; align-items:center; justify-content:center;
  box-shadow:0 8px 24px rgba(0,0,0,0.25);
  transition:transform var(--transition);
}
.whatsapp-float:hover{ transform:scale(1.08); }

.back-to-top{
  position:fixed; right:22px; bottom:90px; z-index:200;
  width:44px; height:44px;
  background:var(--navy-900);
  color:var(--yellow);
  border:none;
  border-radius:50%;
  font-size:1.1rem;
  cursor:pointer;
  opacity:0; pointer-events:none;
  transform:translateY(10px);
  transition:opacity var(--transition), transform var(--transition);
}
.back-to-top.visible{ opacity:1; pointer-events:auto; transform:translateY(0); }

/* ===== Animación al hacer scroll ===== */
[data-reveal]{ opacity:0; transform:translateY(24px); transition:opacity .6s ease, transform .6s ease; }
[data-reveal].in-view{ opacity:1; transform:translateY(0); }

/* ===== Responsive ===== */
@media (max-width: 1180px){
  .header-actions .phone-pill{ display:none; }
}

@media (max-width: 980px){
  .projects-grid{ grid-template-columns:repeat(2,1fr); }
  .machines-grid{ grid-template-columns:repeat(2,1fr); }
  .business-grid{ grid-template-columns:repeat(2,1fr); }
  .features-grid{ grid-template-columns:1fr; }
  .about-grid, .contact-grid{ grid-template-columns:1fr; gap:36px; }
  .footer-inner{ grid-template-columns:1fr 1fr; }
}

@media (max-width: 900px){
  .hero-overlay{
    background:linear-gradient(180deg, rgba(8,14,23,0.5) 0%, rgba(8,14,23,0.72) 55%, rgba(8,14,23,0.85) 100%);
  }
  .main-nav{
    position:fixed; top:78px; left:0; right:0;
    background:var(--navy-900);
    flex-direction:column;
    align-items:flex-start;
    padding:24px;
    gap:18px;
    transform:translateY(-130%);
    transition:transform var(--transition);
    border-bottom:1px solid rgba(255,255,255,0.08);
  }
  .main-nav.open{ transform:translateY(0); }
  .header-actions .phone-pill{ display:none; }
  .nav-toggle{ display:flex; }
  .stats-grid{ grid-template-columns:repeat(2,1fr); }
  .projects-grid, .machines-grid, .business-grid{ grid-template-columns:1fr; }
  .footer-inner{ grid-template-columns:1fr; }
  .contact-cards{ grid-template-columns:1fr; }
  .form-row{ grid-template-columns:1fr; }
  .cta-inner{ flex-direction:column; align-items:flex-start; }
  .hero{ min-height:100vh; }
}