/* MD Polietileno — paleta de marca */
:root{
  --navy: #003D68;
  --navy-dark: #002A4A;
  --navy-soft: #0F5386;
  --navy-bg: #0d1b2e;
  --navy-bg-dark: #0a1628;
  --navy-bg-soft: #16304d;
  --green: #8BC34A;
  --green-dark: #689F38;
  --green-tint: rgba(139,195,74,.12);
  --bg: #F5F7F9;
  --card: #FFFFFF;
  --text: #1C2B36;
  --text-soft: #52626D;
  --border: #E2E8ED;
  --radius: 14px;
  --shadow: 0 10px 30px rgba(0,42,74,0.08);
  --maxw: 1120px;
}

*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  font-family:'Poppins', -apple-system, Segoe UI, Roboto, Helvetica, Arial, sans-serif;
  color:var(--text);
  background:var(--bg);
  line-height:1.55;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
h1,h2,h3,h4{font-weight:700;line-height:1.2;margin:0 0 .5em}
p{margin:0 0 1em}
.wrap{max-width:var(--maxw);margin:0 auto;padding:0 24px}
section{padding:64px 0}
.section-tight{padding:40px 0}

/* Header */
header.site{
  position:sticky;top:0;z-index:50;
  background:linear-gradient(135deg,var(--navy-bg-soft) 0%, var(--navy-bg-dark) 100%);
  box-shadow:0 2px 12px rgba(0,0,0,.15);
}
header.site .wrap{
  display:flex;align-items:center;justify-content:space-between;
  min-height:76px;gap:16px;
}
.brand{display:flex;align-items:center;gap:12px}
.brand img{height:60px;width:auto;background:#fff;border-radius:12px;padding:6px}
header.site .brand img{animation:logo-intro .8s cubic-bezier(.34,1.56,.64,1) both}

@keyframes logo-intro{
  0%{opacity:0;transform:scale(.5) rotate(-10deg)}
  60%{opacity:1;transform:scale(1.1) rotate(3deg)}
  100%{opacity:1;transform:scale(1) rotate(0)}
}
.brand-text{color:#fff;font-size:.78rem;line-height:1.3;opacity:.9}
.brand-text strong{display:block;font-size:1rem;letter-spacing:.02em}

nav.main-nav{display:flex;align-items:center;gap:28px}
nav.main-nav a{
  color:#fff;font-weight:600;font-size:.95rem;
  padding:10px 2px;position:relative;white-space:nowrap;
}
nav.main-nav a.active,nav.main-nav a:hover{color:var(--green)}
.cta-btn{
  display:inline-flex;align-items:center;gap:8px;
  background:var(--green);color:#fff!important;
  padding:12px 20px;border-radius:999px;font-weight:700;
  font-size:.92rem;white-space:nowrap;box-shadow:0 6px 16px rgba(34,197,94,.35);
  transition:transform .15s ease, box-shadow .15s ease;
}
.cta-btn:hover{transform:translateY(-1px);box-shadow:0 8px 20px rgba(34,197,94,.45)}
.cta-btn.ghost{background:transparent;border:2px solid #fff;box-shadow:none}

#nav-toggle{display:none}
.burger{display:none;cursor:pointer;width:44px;height:44px;align-items:center;justify-content:center}
.burger span,.burger span::before,.burger span::after{
  content:'';display:block;width:24px;height:2.5px;background:#fff;border-radius:2px;position:relative;transition:.2s;
}
.burger span::before{position:absolute;top:-8px}
.burger span::after{position:absolute;top:8px}

/* Hero */
.hero{
  background:radial-gradient(120% 140% at 100% 0%, var(--navy-bg-soft) 0%, var(--navy-bg) 45%, var(--navy-bg-dark) 100%);
  color:#fff;padding:88px 0 72px;position:relative;overflow:hidden;
}
.hero .wrap{position:relative;z-index:2}
.hero-illustration{
  position:absolute;right:-10px;bottom:-40px;width:260px;z-index:1;
  opacity:.95;filter:drop-shadow(0 20px 30px rgba(0,0,0,.35));
  pointer-events:none;
}
@media (max-width:960px){.hero-illustration{display:none}}
.hero-grid{display:grid;grid-template-columns:1.15fr .85fr;gap:48px;align-items:center}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;background:rgba(255,255,255,.12);color:#fff;
  padding:6px 14px;border-radius:999px;font-size:.8rem;font-weight:600;
  letter-spacing:.03em;margin-bottom:18px;
}
.eyebrow::before{content:'\25CF';color:var(--green);font-size:.65em}
.hero h1{font-size:2.7rem;color:#fff;margin-bottom:.4em}
.hero h1 .accent{color:var(--green)}
.hero p.lead{font-size:1.15rem;color:rgba(255,255,255,.85);max-width:52ch}
.hero-ctas{display:flex;gap:14px;margin-top:28px;flex-wrap:wrap}
.hero-badge-card{
  background:rgba(255,255,255,.08);border:1px solid rgba(255,255,255,.18);
  border-radius:var(--radius);padding:28px;backdrop-filter:blur(6px);
}
.hero-badge-card ul{list-style:none;margin:0;padding:0;display:grid;gap:16px}
.hero-badge-card li{display:flex;gap:12px;align-items:flex-start;color:#fff;font-size:.95rem}
.hero-badge-card li .ico{
  width:34px;height:34px;flex:0 0 auto;border-radius:9px;
  background:var(--green);display:flex;align-items:center;justify-content:center;
}

/* trust bar */
.trust-bar{background:var(--navy-bg-dark)}
.trust-bar .wrap{
  display:grid;grid-template-columns:repeat(4,1fr);gap:24px;padding:32px 24px;
}
.trust-item{display:flex;flex-direction:column;align-items:center;justify-content:center;text-align:center;gap:4px}
.trust-item .num{font-weight:800;color:var(--green);font-size:1.6rem;white-space:nowrap}
.trust-item .lbl{font-size:.82rem;color:rgba(255,255,255,.65)}

/* generic section headers */
.section-head{max-width:640px;margin:0 auto 40px;text-align:center}
.section-head .tag{
  display:inline-flex;align-items:center;gap:7px;
  background:var(--green-tint);color:var(--green-dark);
  font-weight:700;letter-spacing:.05em;text-transform:uppercase;font-size:.74rem;
  padding:6px 14px;border-radius:999px;margin-bottom:6px;
}
.section-head .tag::before{content:'\25CF';color:var(--green);font-size:.6em}
.section-head h2{font-size:2rem;color:var(--navy)}
.section-head p{color:var(--text-soft)}
.section-head.left{margin:0 0 32px;text-align:left}

/* problema / solucion */
.split{display:grid;grid-template-columns:1fr 1fr;gap:32px}
.panel{background:var(--card);border-radius:var(--radius);padding:32px;box-shadow:var(--shadow)}
.panel h3{color:var(--navy);font-size:1.3rem}
.panel.problema{border-top:4px solid var(--navy)}
.panel.solucion{border-top:4px solid var(--green)}
.check-list{list-style:none;margin:0;padding:0;display:grid;gap:14px}
.check-list li{display:flex;gap:10px;align-items:flex-start;color:var(--text-soft)}
.check-list.x li::before{content:'✕';color:var(--navy);font-weight:800}
.check-list.ok li::before{content:'✓';color:var(--green);font-weight:800}

/* cards grid */
.grid-cards{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}
.grid-cards.cols-3{grid-template-columns:repeat(3,1fr)}
.grid-cards.cols-2{grid-template-columns:repeat(2,1fr)}
.card{
  background:var(--card);border-radius:var(--radius);padding:24px;
  box-shadow:var(--shadow);border:1px solid var(--border);
}
.card .ico{
  width:46px;height:46px;border-radius:12px;background:var(--navy);
  display:flex;align-items:center;justify-content:center;margin-bottom:14px;
}
.card .bag-ico{
  width:64px;height:64px;border-radius:16px;background:rgba(0,61,104,.08);
  display:flex;align-items:center;justify-content:center;margin-bottom:14px;
}
.card .bag-ico svg{width:38px;height:38px}
.card h4{color:var(--navy);font-size:1.05rem;margin-bottom:6px}
.card p{color:var(--text-soft);font-size:.92rem;margin-bottom:0}

/* process photo cards */
.proc-card{
  background:var(--card);border-radius:var(--radius);overflow:hidden;
  box-shadow:var(--shadow);border:1px solid var(--border);
}
.proc-card .proc-photo{
  width:100%;aspect-ratio:4/3;object-fit:cover;display:block;background:var(--navy-bg-dark);
}
.proc-card .proc-body{padding:22px 24px}
.proc-card .step{
  display:inline-flex;align-items:center;justify-content:center;
  width:28px;height:28px;border-radius:50%;background:var(--green);color:#fff;
  font-weight:800;font-size:.8rem;margin-bottom:10px;
}
.proc-card h4{color:var(--navy);font-size:1.05rem;margin-bottom:6px}
.proc-card p{color:var(--text-soft);font-size:.92rem;margin-bottom:0}

/* segment callout */
.callout{
  background:linear-gradient(135deg,var(--green) 0%, var(--green-dark) 100%);
  border-radius:var(--radius);padding:40px;color:#fff;
  display:grid;grid-template-columns:1.3fr 1fr;gap:32px;align-items:center;
}
.callout h3{color:#fff;font-size:1.6rem}
.callout .sizes{display:grid;gap:12px}
.callout .size-row{
  background:rgba(255,255,255,.12);border-radius:10px;padding:14px 16px;
  display:flex;justify-content:space-between;gap:12px;font-size:.92rem;
}

/* faq */
details.faq{
  background:var(--card);border:1px solid var(--border);border-radius:12px;
  padding:18px 20px;margin-bottom:12px;
}
details.faq summary{
  font-weight:700;color:var(--navy);cursor:pointer;list-style:none;
  display:flex;justify-content:space-between;align-items:center;gap:12px;
}
details.faq summary::-webkit-details-marker{display:none}
details.faq summary::after{content:'+';font-size:1.3rem;color:var(--green);flex:0 0 auto}
details.faq[open] summary::after{content:'–'}
details.faq p{color:var(--text-soft);margin:12px 0 0;font-size:.95rem}

/* testimonials */
.testi-card{
  background:var(--card);border-top:3px solid var(--green);border-radius:var(--radius);
  box-shadow:var(--shadow);padding:24px;
}
.testi-card p.quote{font-style:italic;color:var(--text)}
.testi-card .who{font-weight:700;color:var(--navy);font-size:.9rem;margin-top:10px}
.testi-card .role{color:var(--text-soft);font-size:.85rem}

/* final cta band */
.cta-band{
  background:var(--navy-bg-dark);color:#fff;border-radius:var(--radius);
  padding:48px;text-align:center;
}
.cta-band h2{color:#fff}
.cta-band p{color:rgba(255,255,255,.8);max-width:56ch;margin:0 auto 24px}
.cta-band .hero-ctas{justify-content:center}

/* contact cards */
.contact-layout{display:grid;grid-template-columns:1fr 1fr;gap:32px;align-items:start}
.contact-stack{display:grid;gap:16px}
.contact-card{
  background:var(--card);border-radius:var(--radius);padding:22px;box-shadow:var(--shadow);
  display:flex;gap:16px;align-items:flex-start;
}
.contact-card .ico{
  width:44px;height:44px;border-radius:12px;flex:0 0 auto;
  display:flex;align-items:center;justify-content:center;
}
.contact-card h4{margin:0 0 4px;color:var(--navy)}
.contact-card p{margin:0;color:var(--text-soft);font-size:.94rem}
.map-frame{border-radius:var(--radius);overflow:hidden;box-shadow:var(--shadow);border:0;display:block}
.map-link{color:var(--green-dark);font-weight:600;font-size:.9rem;justify-self:start}

/* contact form */
.form-card{background:var(--navy-bg-dark);border-radius:var(--radius);padding:32px;color:#fff}
.form-card h3{color:#fff;font-size:1.3rem}
.form-card p.hint{color:rgba(255,255,255,.6);font-size:.88rem;margin-bottom:22px}
.form-grid{display:grid;grid-template-columns:1fr 1fr;gap:14px;margin-bottom:14px}
.field{display:flex;flex-direction:column;gap:6px}
.field label{font-size:.8rem;color:rgba(255,255,255,.75);font-weight:600}
.field input,.field select,.field textarea{
  background:rgba(255,255,255,.08);border:1px solid rgba(255,255,255,.2);
  border-radius:8px;padding:11px 12px;color:#fff;font-family:inherit;font-size:.92rem;
}
.field select{cursor:pointer}
.field select option{color:#000}
.field input::placeholder,.field textarea::placeholder{color:rgba(255,255,255,.4)}
.field textarea{resize:vertical;min-height:90px}
.form-card .cta-btn{width:100%;justify-content:center;margin-top:4px;border:0;cursor:pointer}

@media (max-width: 900px){
  .contact-layout{grid-template-columns:1fr}
}
@media (max-width: 720px){
  .form-grid{grid-template-columns:1fr}
}

/* footer */
footer.site{background:var(--navy-bg-dark);color:rgba(255,255,255,.75);padding:48px 0 24px}
footer.site .foot-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr;gap:32px}
footer.site h5{color:#fff;font-size:.95rem;margin-bottom:14px}
footer.site a{color:rgba(255,255,255,.75)}
footer.site a:hover{color:var(--green)}
footer.site .foot-links{list-style:none;margin:0;padding:0;display:grid;gap:10px;font-size:.92rem}
footer.site .brand{margin-bottom:10px}
footer.site .fine{
  border-top:1px solid rgba(255,255,255,.12);margin-top:32px;padding-top:20px;
  display:flex;justify-content:space-between;flex-wrap:wrap;gap:8px;font-size:.8rem;color:rgba(255,255,255,.55);
}

/* AddiFlex block */
.addiflex-block{
  display:grid;grid-template-columns:220px 1fr;gap:36px;align-items:center;
  background:var(--card);border-radius:var(--radius);padding:36px;box-shadow:var(--shadow);
}
.addiflex-badge{
  width:100%;max-width:180px;aspect-ratio:632/594;margin:0 auto;
  background-color:var(--text-soft);
  -webkit-mask:url('assets/addiflex_badge.png') center/contain no-repeat;
  mask:url('assets/addiflex_badge.png') center/contain no-repeat;
}

/* utils */
.text-center{text-align:center}
.mt-24{margin-top:24px}
/* Mobile */
@media (max-width: 960px){
  .hero-grid{grid-template-columns:1fr}
  .split{grid-template-columns:1fr}
  .grid-cards{grid-template-columns:repeat(2,1fr)}
  .grid-cards.cols-3{grid-template-columns:repeat(2,1fr)}
  .callout{grid-template-columns:1fr}
  .trust-bar .wrap{grid-template-columns:repeat(2,1fr)}
  footer.site .foot-grid{grid-template-columns:1fr 1fr}
  .addiflex-block{grid-template-columns:1fr;text-align:center}
}

@media (max-width: 900px){
  nav.main-nav{
    position:fixed;top:76px;left:0;right:0;background:var(--navy-dark);
    flex-direction:column;align-items:stretch;gap:0;
    max-height:0;overflow:hidden;transition:max-height .25s ease;
    box-shadow:0 12px 20px rgba(0,0,0,.2);
  }
  nav.main-nav a{padding:16px 24px;min-height:48px;display:flex;align-items:center;border-bottom:1px solid rgba(255,255,255,.08)}
  nav.main-nav .cta-btn{margin:14px 24px;justify-content:center}
  #nav-toggle:checked ~ nav.main-nav{max-height:520px}
  .burger{display:flex}
  header.site .wrap{flex-wrap:wrap}
}

@media (max-width: 720px){
  section{padding:44px 0}
  .hero{padding:36px 0 40px}
  .hero h1{font-size:2rem}
  .hero p.lead{font-size:1.02rem}

  .grid-cards,.grid-cards.cols-3,.grid-cards.cols-2{grid-template-columns:1fr}
  .trust-bar .wrap{grid-template-columns:1fr 1fr;padding:18px}
  footer.site .foot-grid{grid-template-columns:1fr;gap:24px}
  .cta-band{padding:32px 20px}
  .hero-ctas,.cta-band .hero-ctas{flex-direction:column;align-items:stretch}
  .cta-btn{padding:16px 20px;font-size:1rem}
  a, button, .cta-btn, nav.main-nav a{min-height:44px}
}