/* =========================================================
   Recifran e Hijos — estilos
   ========================================================= */

:root{
  --green-700:#2f7d32;
  --green-600:#3a9a3f;
  --green-500:#5cb85c;
  --green-400:#86c66a;
  --green-50:#eff7ec;
  --ink-900:#1a1f1a;
  --ink-700:#2c322c;
  --ink-500:#5b625b;
  --ink-300:#9aa19a;
  --line:#e5e8e4;
  --bg:#ffffff;
  --bg-soft:#f6f8f3;
  --bg-dark:#11201a;
  --shadow-sm:0 1px 2px rgba(20,40,20,.04), 0 2px 6px rgba(20,40,20,.05);
  --shadow-md:0 6px 18px rgba(20,40,20,.08), 0 18px 40px rgba(20,40,20,.06);
  --radius:14px;
  --radius-sm:10px;
  --container:1180px;
  --t:.25s ease;
}

*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  font-family:"Inter","Helvetica Neue",Arial,sans-serif;
  font-size:16px;
  line-height:1.6;
  color:var(--ink-700);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block}
a{color:var(--green-700);text-decoration:none;transition:color var(--t)}
a:hover{color:var(--green-600)}

h1,h2,h3,h4,h5{
  font-family:"Barlow","Inter",sans-serif;
  color:var(--ink-900);
  font-weight:800;
  line-height:1.15;
  margin:0 0 .6em;
  letter-spacing:-.01em;
}
h1{font-size:clamp(2.2rem, 4.5vw, 3.6rem)}
h2{font-size:clamp(1.7rem, 3vw, 2.4rem)}
h3{font-size:1.25rem}
h4{font-size:1.05rem;font-weight:700}
h5{font-size:.95rem;text-transform:uppercase;letter-spacing:.08em;color:#fff;margin-bottom:1rem}
p{margin:0 0 1em}

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

/* ---------- buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;
  padding:.95rem 1.6rem;
  border-radius:999px;
  font-weight:600;font-size:.95rem;
  letter-spacing:.01em;
  border:2px solid transparent;
  cursor:pointer;
  transition:all var(--t);
  text-decoration:none;
}
.btn-primary{background:var(--green-600);color:#fff;border-color:var(--green-600)}
.btn-primary:hover{background:var(--green-700);border-color:var(--green-700);color:#fff;transform:translateY(-1px);box-shadow:var(--shadow-sm)}
.btn-ghost{color:#fff;border-color:rgba(255,255,255,.55);background:transparent}
.btn-ghost:hover{background:#fff;color:var(--green-700);border-color:#fff}
.btn-light{background:#fff;color:var(--green-700);border-color:#fff}
.btn-light:hover{background:var(--green-50);color:var(--green-700)}

/* ---------- header ---------- */
.site-header{
  position:sticky;top:0;z-index:50;
  background:rgba(255,255,255,.96);
  backdrop-filter:blur(8px);
  border-bottom:1px solid var(--line);
}
.topbar{
  background:var(--ink-900);color:#cfd6cc;
  font-size:.82rem;
}
.topbar a{color:#cfd6cc}
.topbar a:hover{color:#fff}
.topbar-inner{
  display:flex;flex-wrap:wrap;gap:.5rem 1rem;
  padding:.55rem 24px;
  justify-content:flex-end;
}
.topbar .sep{opacity:.4}

.nav-inner{
  display:flex;align-items:center;justify-content:space-between;
  padding:.85rem 24px;
}
.brand{display:flex;align-items:center}
.brand-logo{height:54px;width:auto}

.primary-nav ul{
  display:flex;gap:.25rem;
  list-style:none;margin:0;padding:0;
}
.primary-nav a{
  display:inline-block;
  padding:.55rem .9rem;
  color:var(--ink-700);
  font-weight:500;font-size:.95rem;
  border-radius:8px;
}
.primary-nav a:hover{color:var(--green-700);background:var(--green-50)}
.primary-nav a.cta{
  background:var(--green-600);color:#fff;
  padding:.6rem 1.2rem;border-radius:999px;
  margin-left:.5rem;
}
.primary-nav a.cta:hover{background:var(--green-700);color:#fff}

.nav-toggle{
  display:none;
  background:none;border:0;padding:.3rem;cursor:pointer;
  width:42px;height:42px;
  flex-direction:column;justify-content:center;gap:5px;align-items:center;
}
.nav-toggle span{width:24px;height:2.5px;background:var(--ink-900);border-radius:2px;transition:transform var(--t),opacity var(--t)}
.nav-toggle[aria-expanded="true"] span:nth-child(1){transform:translateY(7.5px) rotate(45deg)}
.nav-toggle[aria-expanded="true"] span:nth-child(2){opacity:0}
.nav-toggle[aria-expanded="true"] span:nth-child(3){transform:translateY(-7.5px) rotate(-45deg)}

/* ---------- hero ---------- */
.hero{
  position:relative;
  min-height:88vh;
  display:flex;align-items:center;
  color:#fff;
  overflow:hidden;
  isolation:isolate;
}
.hero-bg{
  position:absolute;inset:0;
  background-size:cover;background-position:center;
  z-index:-2;
  transform:scale(1.05);
  animation:slowZoom 18s ease-in-out infinite alternate;
}
@keyframes slowZoom{
  from{transform:scale(1.05)}to{transform:scale(1.15)}
}
.hero-overlay{
  position:absolute;inset:0;z-index:-1;
  background:linear-gradient(120deg, rgba(10,30,15,.78) 0%, rgba(10,30,15,.55) 50%, rgba(10,30,15,.35) 100%);
}
.hero-inner{padding:120px 24px 130px;max-width:900px}
.hero h1{color:#fff;margin-bottom:1rem}
.hero .lead{font-size:1.15rem;max-width:640px;color:#e9efe5;margin-bottom:1.8rem}
.kicker{
  display:inline-block;
  text-transform:uppercase;letter-spacing:.16em;
  font-size:.78rem;font-weight:700;
  color:var(--green-400);
  margin-bottom:.75rem;
}
.kicker.green{color:var(--green-700)}
.hero-actions{display:flex;flex-wrap:wrap;gap:.8rem}
.hero-scroll{
  position:absolute;bottom:24px;left:50%;transform:translateX(-50%);
  width:28px;height:46px;border:2px solid rgba(255,255,255,.6);border-radius:18px;
  display:flex;justify-content:center;align-items:flex-start;padding-top:8px;
}
.hero-scroll span{width:3px;height:8px;background:#fff;border-radius:2px;animation:scrollDot 1.6s ease-in-out infinite}
@keyframes scrollDot{0%{transform:translateY(0);opacity:1}80%{transform:translateY(14px);opacity:0}100%{opacity:0}}

/* ---------- values ---------- */
.values{padding:80px 0;background:var(--bg-soft)}
.values-grid{display:grid;gap:24px;grid-template-columns:repeat(4,1fr)}
.value{
  background:#fff;padding:32px 26px;border-radius:var(--radius);
  border:1px solid var(--line);
  transition:transform var(--t), box-shadow var(--t);
}
.value:hover{transform:translateY(-4px);box-shadow:var(--shadow-md)}
.value-icon{
  width:56px;height:56px;border-radius:14px;
  background:var(--green-50);color:var(--green-700);
  display:flex;align-items:center;justify-content:center;margin-bottom:18px;
}
.value-icon svg{width:30px;height:30px}
.value-icon img{width:38px;height:38px;object-fit:contain}
.value h3{margin-bottom:.4rem}
.value p{margin:0;color:var(--ink-500);font-size:.95rem}

/* ---------- block image+text ---------- */
.block{padding:90px 0}
.grid-2{
  display:grid;gap:60px;grid-template-columns:1fr 1fr;align-items:center;
}
.block-img img{
  width:100%;height:100%;max-height:520px;object-fit:cover;
  border-radius:var(--radius);box-shadow:var(--shadow-md);
}
.block-text p{color:var(--ink-500)}
.block-text strong{color:var(--ink-900)}
.block.reverse .grid-2{grid-template-columns:1fr 1fr}
.block.reverse .block-img{order:2}
.block.reverse .block-text{order:1}

/* ---------- stats ---------- */
.stats{
  padding:46px 0;
  background:linear-gradient(135deg, var(--green-700), var(--green-600));
  color:#fff;
}
.stats-grid{
  display:grid;gap:30px;grid-template-columns:repeat(4,1fr);text-align:center;
}
.stats-grid > div{display:flex;flex-direction:column;gap:6px}
.stat-num{
  font-family:"Barlow",sans-serif;
  font-size:clamp(2rem,3.5vw,3rem);
  font-weight:800;letter-spacing:-.01em;
}
.stat-label{font-size:.92rem;opacity:.85;letter-spacing:.04em}

/* ---------- residuos / LER grid ---------- */
.residuos{padding:90px 0;background:var(--bg-soft)}
.section-head{text-align:center;max-width:760px;margin:0 auto 50px}
.section-head .section-sub{color:var(--ink-500);font-size:1.05rem}
.section-head.light{color:#fff}
.section-head.light h2{color:#fff}
.section-head.light .section-sub{color:#cfd6cc}
.ler-grid{
  display:grid;gap:14px;
  grid-template-columns:repeat(auto-fill,minmax(280px,1fr));
}
.ler{
  display:flex;align-items:center;gap:14px;
  background:#fff;border:1px solid var(--line);
  padding:16px 18px;border-radius:var(--radius-sm);
  transition:border-color var(--t), transform var(--t);
}
.ler:hover{border-color:var(--green-500);transform:translateY(-2px)}
.ler-code{
  flex-shrink:0;
  font-family:"Barlow",sans-serif;font-weight:800;
  background:var(--green-50);color:var(--green-700);
  padding:.45rem .7rem;border-radius:8px;font-size:.85rem;letter-spacing:.02em;
}
.ler-name{font-size:.95rem;color:var(--ink-700)}

/* ---------- materiales ---------- */
.materiales{
  padding:90px 0;
  background:var(--bg-dark) url('../img/material-zahorra.jpg') center/cover no-repeat;
  background-blend-mode:multiply;
  position:relative;
}
.materiales::before{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg, rgba(10,30,15,.88), rgba(10,30,15,.92));
}
.materiales > .container{position:relative;z-index:1}
.materials-grid{
  display:grid;gap:18px;
  grid-template-columns:repeat(auto-fill,minmax(200px,1fr));
}
.mat-card{
  background:#fff;border-radius:var(--radius);overflow:hidden;
  transition:transform var(--t), box-shadow var(--t);
}
.mat-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-md)}
.mat-img{aspect-ratio:4/3;overflow:hidden}
.mat-img img{width:100%;height:100%;object-fit:cover;transition:transform .6s ease}
.mat-card:hover .mat-img img{transform:scale(1.06)}
.mat-card h4{margin:0;padding:14px 16px;color:var(--ink-900);font-size:.95rem}

/* ---------- proceso ---------- */
.proceso{padding:90px 0;background:#fff}
.process-steps{
  list-style:none;margin:0;padding:0;
  display:grid;gap:22px;
  grid-template-columns:repeat(auto-fit,minmax(220px,1fr));
  counter-reset:step;
}
.process-steps li{
  position:relative;
  background:#fff;border:1px solid var(--line);border-radius:var(--radius);
  overflow:hidden;
  transition:transform var(--t), box-shadow var(--t), border-color var(--t);
}
.process-steps li:hover{transform:translateY(-4px);box-shadow:var(--shadow-md);border-color:var(--green-500)}
.step-img{aspect-ratio:4/3;overflow:hidden}
.step-img img{width:100%;height:100%;object-fit:cover}
.process-steps .step-num{
  position:absolute;top:12px;left:12px;
  background:var(--green-600);color:#fff;
  font-family:"Barlow",sans-serif;font-weight:800;font-size:.85rem;
  padding:.3rem .65rem;border-radius:6px;
}
.process-steps h3{padding:18px 18px 0;margin-bottom:.4rem}
.process-steps p{padding:0 18px 20px;margin:0;color:var(--ink-500);font-size:.93rem}

/* ---------- cta band ---------- */
.cta-band{
  padding:60px 0;
  background:linear-gradient(135deg,var(--green-700),var(--green-600));
  color:#fff;
}
.cta-band h2{color:#fff;margin-bottom:.5rem}
.cta-band p{margin:0;color:#e6f1e1}
.cta-inner{
  display:flex;gap:30px;align-items:center;justify-content:space-between;flex-wrap:wrap;
}
.cta-inner > div{flex:1;min-width:280px}

/* ---------- contacto ---------- */
.contacto{padding:90px 0;background:var(--bg-soft)}
.contact-list{list-style:none;margin:1.5rem 0 0;padding:0;display:grid;gap:14px}
.contact-list li{display:flex;gap:14px;align-items:flex-start}
.contact-list svg{
  width:22px;height:22px;flex-shrink:0;color:var(--green-700);margin-top:2px;
}
.contact-list strong{color:var(--ink-900)}

.contact-form{
  background:#fff;padding:32px;border-radius:var(--radius);
  box-shadow:var(--shadow-md);border:1px solid var(--line);
  display:grid;gap:14px;
}
.contact-form .row{display:grid;grid-template-columns:1fr 1fr;gap:14px}
.contact-form label{display:flex;flex-direction:column;font-size:.85rem;font-weight:600;color:var(--ink-700);gap:6px}
.contact-form input,
.contact-form select,
.contact-form textarea{
  font-family:inherit;font-size:.95rem;font-weight:400;color:var(--ink-900);
  padding:.7rem .9rem;border:1px solid var(--line);border-radius:8px;background:#fff;
  transition:border-color var(--t), box-shadow var(--t);
}
.contact-form textarea{resize:vertical}
.contact-form input:focus,
.contact-form select:focus,
.contact-form textarea:focus{
  outline:none;border-color:var(--green-500);box-shadow:0 0 0 3px var(--green-50);
}
.contact-form .check{flex-direction:row;align-items:center;gap:8px;font-weight:400;color:var(--ink-500)}
.contact-form .check input{width:auto;padding:0}
.contact-form .btn{justify-self:start}

/* honeypot oculto */
.contact-form .hp{position:absolute;left:-9999px;width:1px;height:1px;overflow:hidden}

/* captcha matemático */
.contact-form .captcha{
  display:flex;align-items:center;gap:10px;flex-wrap:wrap;
  background:var(--green-50);
  border:1px dashed var(--green-500);
  border-radius:10px;
  padding:12px 14px;
}
.contact-form .captcha label{
  flex:1;min-width:200px;
  flex-direction:row;align-items:center;gap:10px;
  font-size:.95rem;font-weight:600;color:var(--ink-700);
  margin:0;
}
.contact-form .captcha #captcha-question{
  font-family:"Barlow",sans-serif;font-size:1.1rem;font-weight:800;color:var(--green-700);
  background:#fff;padding:.3rem .7rem;border-radius:6px;border:1px solid var(--line);
  user-select:none;letter-spacing:.04em;
}
.contact-form .captcha input{
  width:90px;padding:.55rem .7rem;font-weight:600;text-align:center;
}
.captcha-refresh{
  background:#fff;border:1px solid var(--line);border-radius:8px;
  width:38px;height:38px;display:flex;align-items:center;justify-content:center;
  color:var(--green-700);cursor:pointer;transition:all var(--t);
}
.captcha-refresh:hover{background:var(--green-600);color:#fff;border-color:var(--green-600);transform:rotate(90deg)}
.captcha-refresh svg{width:18px;height:18px}
.captcha-error{
  flex-basis:100%;margin:4px 0 0;
  color:#b3261e;font-size:.85rem;font-weight:600;
}

/* ---------- footer ---------- */
.site-footer{background:#0e1c14;color:#cfd6cc;padding-top:60px;font-size:.92rem}
.site-footer a{color:#cfd6cc}
.site-footer a:hover{color:#fff}
.footer-grid{
  display:grid;gap:30px;grid-template-columns:1.4fr 1fr 1fr 1fr;padding-bottom:40px;
}
.footer-logo{height:48px;background:#fff;padding:6px 10px;border-radius:6px;margin-bottom:14px}
.site-footer ul{list-style:none;margin:0;padding:0;display:grid;gap:8px}
.footer-bottom{border-top:1px solid rgba(255,255,255,.08);padding:18px 0}
.footer-bottom-inner{display:flex;justify-content:space-between;align-items:center;gap:16px;flex-wrap:wrap;color:#9aa19a}
.footer-bottom small a{color:#9aa19a}

/* ---------- modales legales ---------- */
.modal{
  position:fixed;inset:0;z-index:100;
  display:flex;align-items:center;justify-content:center;
  padding:24px;
  animation:fadeIn .2s ease;
}
.modal[hidden]{display:none}
@keyframes fadeIn{from{opacity:0}to{opacity:1}}
.modal-backdrop{
  position:absolute;inset:0;
  background:rgba(10,30,15,.7);
  backdrop-filter:blur(3px);
}
.modal-dialog{
  position:relative;
  background:#fff;border-radius:var(--radius);
  width:100%;max-width:760px;max-height:90vh;
  display:flex;flex-direction:column;
  box-shadow:0 20px 60px rgba(0,0,0,.3);
  animation:slideUp .3s ease;
}
@keyframes slideUp{from{transform:translateY(20px);opacity:0}to{transform:none;opacity:1}}
.modal-header{
  display:flex;justify-content:space-between;align-items:center;
  padding:20px 28px;border-bottom:1px solid var(--line);
  flex-shrink:0;
}
.modal-header h2{margin:0;font-size:1.5rem}
.modal-close{
  background:none;border:0;cursor:pointer;
  width:36px;height:36px;border-radius:50%;
  font-size:1.6rem;line-height:1;color:var(--ink-500);
  display:flex;align-items:center;justify-content:center;
  transition:all var(--t);
}
.modal-close:hover{background:var(--bg-soft);color:var(--ink-900)}
.modal-body{
  padding:24px 28px 28px;overflow-y:auto;
  font-size:.95rem;color:var(--ink-700);
}
.modal-body h3{
  font-size:1.05rem;margin:1.4rem 0 .5rem;color:var(--green-700);
}
.modal-body h3:first-child{margin-top:0}
.modal-body ul{margin:0 0 1em;padding-left:1.3em}
.modal-body ul li{margin-bottom:.3em}
.modal-body p{margin:0 0 .8em}

body.modal-open{overflow:hidden}

/* ---------- banner cookies ---------- */
.cookie-banner{
  position:fixed;left:16px;right:16px;bottom:16px;z-index:90;
  background:#0e1c14;color:#e6ece1;
  border-radius:var(--radius);
  box-shadow:0 12px 40px rgba(0,0,0,.35);
  padding:18px 22px;
  animation:cookieIn .35s ease;
}
.cookie-banner[hidden]{display:none}
@keyframes cookieIn{from{transform:translateY(20px);opacity:0}to{transform:none;opacity:1}}
.cookie-inner{
  display:flex;gap:24px;align-items:center;justify-content:space-between;
  max-width:var(--container);margin:0 auto;flex-wrap:wrap;
}
.cookie-text{flex:1;min-width:280px}
.cookie-text strong{color:#fff;font-size:1.05rem;display:block;margin-bottom:4px}
.cookie-text p{margin:0;font-size:.9rem;color:#cfd6cc}
.cookie-text a{color:var(--green-400);text-decoration:underline}
.cookie-text a:hover{color:#fff}
.cookie-actions{display:flex;gap:10px;flex-wrap:wrap}
.cookie-actions .btn{padding:.7rem 1.2rem;font-size:.9rem}
.btn-ghost-dark{
  background:transparent;color:#e6ece1;border:2px solid rgba(255,255,255,.25);
}
.btn-ghost-dark:hover{background:rgba(255,255,255,.08);border-color:rgba(255,255,255,.4);color:#fff}

@media (max-width:600px){
  .cookie-inner{flex-direction:column;align-items:stretch;text-align:left}
  .cookie-actions{justify-content:stretch}
  .cookie-actions .btn{flex:1}
  .modal-dialog{max-height:95vh}
  .modal-header{padding:16px 20px}
  .modal-body{padding:18px 20px 22px}
}

/* ---------- reveal animation ---------- */
.reveal{opacity:0;transform:translateY(30px);transition:opacity .8s ease,transform .8s ease}
.reveal.visible{opacity:1;transform:none}

/* ---------- responsive ---------- */
@media (max-width: 980px){
  .values-grid{grid-template-columns:repeat(2,1fr)}
  .stats-grid{grid-template-columns:repeat(2,1fr)}
  .grid-2{grid-template-columns:1fr;gap:36px}
  .block.reverse .block-img{order:1}
  .block.reverse .block-text{order:2}
  .footer-grid{grid-template-columns:1fr 1fr}
}
@media (max-width: 760px){
  .topbar-inner{justify-content:center;font-size:.78rem}
  .nav-toggle{display:flex}
  .primary-nav{
    position:absolute;top:100%;left:0;right:0;
    background:#fff;border-bottom:1px solid var(--line);
    padding:14px 24px 22px;
    transform:translateY(-110%);opacity:0;pointer-events:none;
    transition:transform .25s ease, opacity .2s ease;
    box-shadow:var(--shadow-md);
  }
  .primary-nav.open{transform:none;opacity:1;pointer-events:auto}
  .primary-nav ul{flex-direction:column;gap:2px}
  .primary-nav a{padding:.85rem 1rem;width:100%}
  .primary-nav a.cta{margin-left:0;text-align:center;margin-top:6px}

  .hero{min-height:78vh}
  .hero-inner{padding:90px 24px 100px}

  .values{padding:60px 0}
  .block{padding:60px 0}
  .residuos,.materiales,.proceso,.contacto{padding:60px 0}

  .contact-form{padding:22px}
  .contact-form .row{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr}
  .footer-bottom-inner{flex-direction:column;text-align:center}
}
@media (max-width: 460px){
  .values-grid{grid-template-columns:1fr}
  .stats-grid{grid-template-columns:repeat(2,1fr)}
  .hero h1{font-size:2rem}
}