/* ============================================================
   anclajesalterreno.com — PANTALLAX® · hoja de estilos del ecosistema
   Identidad: dark industrial · rojo PANTALLAX · azul acero (solo nivel freático)
   Legibilidad: cuerpo 18px / 1.8 · títulos de tarjeta ~22px · nunca <16px en contenido
   ============================================================ */

:root{
  --bg:#0d0d0d; --bg-2:#111; --surface:#161616; --surface-2:#1b1b1b;
  --line:#2a2a2a; --line-soft:#202020;
  --red:#c41a1a; --red-bright:#e0564f;
  --text:#d4d4cf; --white:#f1f1ec; --muted:#9c9c97; --muted-2:#7b7b76;
  --water:#5a8fb8;            /* azul acero · reservado al nivel freático */
  --rock:#3a3a38;
  --wa:#25d366;
  --maxw:1160px;
  --r:10px;
}

*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0; background:var(--bg); color:var(--text);
  font-family:'DM Sans',system-ui,Arial,sans-serif;
  font-size:18px; line-height:1.8; font-weight:400;
  -webkit-font-smoothing:antialiased; text-rendering:optimizeLegibility;
}
img{max-width:100%;display:block}
a{color:var(--red-bright); text-decoration:none}
a:hover{text-decoration:underline}
.wrap{max-width:var(--maxw); margin:0 auto; padding:0 24px}
section{padding:74px 0}
.lead{font-size:20px;line-height:1.75;color:var(--text)}

/* Tipografía display */
h1,h2,h3{color:var(--white); margin:0 0 14px}
.display{font-family:'Bebas Neue',sans-serif; font-weight:400; letter-spacing:.5px; line-height:.98}
h1.display{font-size:clamp(38px,6vw,72px)}
h2{font-size:clamp(26px,3.2vw,38px); line-height:1.12; font-family:'Bebas Neue',sans-serif; letter-spacing:.5px}
h3{font-size:22px; line-height:1.3; font-weight:500; font-family:'DM Sans',sans-serif}
.serif{font-family:'Cormorant Garamond',serif}
.thesis{font-family:'Cormorant Garamond',serif; font-size:clamp(21px,2.6vw,30px); line-height:1.4; color:var(--white); font-weight:400}
p{margin:0 0 16px}
.muted{color:var(--muted)}

/* Eyebrow / etiquetas */
.eyebrow{font-size:12px; letter-spacing:2.5px; text-transform:uppercase; color:var(--red-bright);
  font-weight:500; margin:0 0 16px; display:block}
.eyebrow.muted{color:var(--muted-2)}

/* Header */
header.site{position:sticky; top:0; z-index:60; background:rgba(13,13,13,.92);
  backdrop-filter:blur(8px); border-bottom:1px solid var(--line-soft)}
.nav{display:flex; align-items:center; justify-content:space-between; gap:18px; height:68px}
.brand{display:flex; align-items:center; gap:12px; color:var(--white)}
.brand-logo{height:30px; width:auto; display:block}
.brand-desc{display:flex; flex-direction:column; line-height:1.15; padding-left:12px;
  border-left:1px solid rgba(255,255,255,.18)}
.brand-desc b{font-family:'DM Sans',sans-serif; font-weight:500; font-size:14px; letter-spacing:.3px; color:var(--white)}
.brand-desc small{font-family:'DM Sans',sans-serif; font-size:11px; letter-spacing:1.5px;
  text-transform:uppercase; color:var(--muted-2); margin-top:2px}
@media (max-width:600px){.brand-logo{height:26px} .brand-desc{padding-left:10px} .brand-desc small{display:none}}
.navlinks{display:flex; align-items:center; gap:22px; list-style:none; margin:0; padding:0}
.navlinks a{color:var(--text); font-size:15px}
.navlinks a:hover{color:var(--white); text-decoration:none}
.navlinks .current{color:var(--white); border-bottom:2px solid var(--red)}
.nav-cta{display:inline-flex; align-items:center; gap:8px; background:var(--red); color:#fff;
  padding:9px 15px; border-radius:8px; font-size:13px; letter-spacing:.6px; font-weight:500; white-space:nowrap}
.nav-cta:hover{background:var(--red-bright); text-decoration:none}

/* Dropdown Soluciones (desktop) */
.has-drop{position:relative}
.drop-btn{background:none;border:0;color:var(--text);font:inherit;font-size:15px;cursor:pointer;
  display:inline-flex;align-items:center;gap:6px;padding:0}
.drop-btn:hover{color:var(--white)}
.drop-btn .chev{font-size:10px;transition:transform .2s}
.dropmenu{position:absolute; top:140%; left:0; min-width:286px; background:var(--surface-2);
  border:1px solid var(--line); border-radius:var(--r); padding:8px; list-style:none; margin:0;
  opacity:0; visibility:hidden; transform:translateY(6px); transition:.18s; box-shadow:0 18px 40px rgba(0,0,0,.5)}
.has-drop:hover .dropmenu, .has-drop:focus-within .dropmenu, .dropmenu.open{opacity:1; visibility:visible; transform:none}
.dropmenu a{display:block; padding:9px 12px; border-radius:7px; font-size:15px; color:var(--text)}
.dropmenu a:hover{background:#242424; color:var(--white); text-decoration:none}
.burger{display:none; background:none; border:1px solid var(--line); border-radius:8px; color:var(--white);
  width:44px; height:40px; font-size:20px; cursor:pointer}

/* Hero */
.hero{position:relative; overflow:hidden; border-bottom:1px solid var(--line-soft);
  padding:0}
.hero-grid{display:grid; grid-template-columns:1.25fr .75fr; gap:40px; align-items:center;
  padding:78px 0 70px}
.hero h1{margin-bottom:20px}
.hero .thesis{margin:0 0 26px; max-width:42ch}
.btn-row{display:flex; flex-wrap:wrap; gap:14px; align-items:center; margin-top:8px}
.btn{display:inline-flex; align-items:center; gap:9px; padding:14px 22px; border-radius:9px;
  font-size:15px; font-weight:500; letter-spacing:.3px}
.btn-primary{background:var(--red); color:#fff}
.btn-primary:hover{background:var(--red-bright); text-decoration:none}
.btn-ghost{border:1px solid var(--line); color:var(--white)}
.btn-ghost:hover{border-color:var(--red-bright); text-decoration:none}
.btn-wa{color:var(--wa); border:1px solid #1f3a2a}
.btn-wa:hover{border-color:var(--wa);text-decoration:none}

/* Signature: corte del subsuelo */
.section-svg{width:100%; height:auto; max-height:440px; filter:drop-shadow(0 20px 40px rgba(0,0,0,.5))}
.depth-figure{margin:0}
.depth-cap{font-size:13px; color:var(--muted-2); margin-top:10px; letter-spacing:.4px}

/* Bandas */
.band{background:var(--bg-2); border-top:1px solid var(--line-soft); border-bottom:1px solid var(--line-soft)}
.band-red{background:linear-gradient(180deg,#141414,#0f0f0f)}

/* Stats */
.stats{display:flex; flex-wrap:wrap; gap:42px; margin-top:8px}
.stat .n{font-family:'Bebas Neue',sans-serif; font-size:54px; line-height:1; color:var(--white)}
.stat .n i{color:var(--red); font-style:normal}
.stat .l{font-size:14px; color:var(--muted); letter-spacing:.5px; margin-top:4px; max-width:18ch}

/* Grids de tarjetas */
.grid{display:grid; gap:18px}
.g2{grid-template-columns:repeat(2,1fr)}
.g3{grid-template-columns:repeat(3,1fr)}
.g4{grid-template-columns:repeat(4,1fr)}
.card{background:var(--surface); border:1px solid var(--line); border-radius:var(--r); padding:26px 24px;
  transition:border-color .2s, transform .2s}
.card:hover{border-color:#3a3a3a; transform:translateY(-3px)}
.card h3{margin-bottom:8px}
.card p{font-size:16px; line-height:1.7; color:var(--muted); margin:0}
a.card{color:inherit; display:block}
a.card:hover{text-decoration:none}
a.card .more{color:var(--red-bright); font-size:14px; margin-top:12px; display:inline-block}

/* Método (secuencia real -> sí numerada) */
.method{display:grid; grid-template-columns:repeat(4,1fr); gap:0; border:1px solid var(--line);
  border-radius:var(--r); overflow:hidden}
.step{padding:26px 22px; border-right:1px solid var(--line); position:relative}
.step:last-child{border-right:0}
.step .k{font-family:'Bebas Neue',sans-serif; font-size:34px; color:var(--red); line-height:1}
.step h3{font-size:18px; margin:8px 0 6px}
.step p{font-size:15px; color:var(--muted); margin:0; line-height:1.6}
.flowline{display:flex;flex-wrap:wrap;align-items:center;gap:12px;font-family:'Bebas Neue',sans-serif;
  font-size:clamp(18px,2.4vw,26px);letter-spacing:1px;color:var(--white)}
.flowline .arr{color:var(--red)}

/* Bloque destacado / thesis band */
.pull{border-left:3px solid var(--red); padding:6px 0 6px 24px; margin:30px 0}

/* Listas técnicas */
ul.ticks{list-style:none;padding:0;margin:16px 0}
ul.ticks li{position:relative;padding:0 0 12px 26px;font-size:17px;line-height:1.65}
ul.ticks li:before{content:"";position:absolute;left:0;top:11px;width:9px;height:9px;
  background:var(--red);border-radius:2px}

/* Ecosistema */
.eco{display:grid;grid-template-columns:repeat(4,1fr);gap:14px}
.eco a{background:var(--surface);border:1px solid var(--line);border-radius:var(--r);padding:18px 18px;
  color:var(--text);font-size:15px;display:block}
.eco a:hover{border-color:var(--red-bright);text-decoration:none;color:var(--white)}
.eco a b{display:block;color:var(--white);font-size:16px;margin-bottom:3px}
.eco a span{font-size:13px;color:var(--muted-2)}

/* CTA band */
.cta-band{background:linear-gradient(180deg,#151515,#0e0e0e);border-top:1px solid var(--line);
  border-bottom:1px solid var(--line)}
.cta-band h2{margin-bottom:10px}

/* Formulario */
.form{background:var(--surface);border:1px solid var(--line);border-radius:var(--r);padding:30px}
.fgrid{display:grid;grid-template-columns:1fr 1fr;gap:16px}
.field{display:flex;flex-direction:column;gap:6px;margin-bottom:4px}
.field.full{grid-column:1 / -1}
label.flbl{font-size:13px;letter-spacing:1px;text-transform:uppercase;color:var(--muted)}
input,select,textarea{background:#101010;border:1px solid var(--line);border-radius:8px;color:var(--white);
  font-family:inherit;font-size:16px;padding:12px 13px;width:100%}
textarea{min-height:120px;resize:vertical;line-height:1.6}
input:focus,select:focus,textarea:focus{outline:2px solid var(--red-bright);outline-offset:1px;border-color:var(--red-bright)}
.hp{position:absolute;left:-9999px;width:1px;height:1px;overflow:hidden}
.consent{display:flex;gap:10px;align-items:flex-start;font-size:14px;color:var(--muted);line-height:1.5}
.consent input{width:auto;margin-top:3px}
.form-msg{display:none;margin-bottom:18px;padding:14px 16px;border-radius:8px;font-size:16px;line-height:1.6}
.btn-submit{background:var(--red);color:#fff;border:0;border-radius:9px;padding:14px 26px;font-size:15px;
  font-weight:500;letter-spacing:.3px;cursor:pointer}
.btn-submit:hover{background:var(--red-bright)}

/* Contacto info */
.contact-grid{display:grid;grid-template-columns:.9fr 1.1fr;gap:34px;align-items:start}
.contact-card{background:var(--surface-2);border:1px solid var(--line);border-radius:var(--r);padding:26px}
.contact-card .big{font-family:'Bebas Neue',sans-serif;font-size:30px;color:var(--white);letter-spacing:.5px}

/* FAQ */
.faq details{border:1px solid var(--line);border-radius:var(--r);padding:0;margin-bottom:12px;background:var(--surface)}
.faq summary{list-style:none;cursor:pointer;padding:18px 22px;font-size:18px;color:var(--white);font-weight:500;
  display:flex;justify-content:space-between;gap:16px;align-items:center}
.faq summary::-webkit-details-marker{display:none}
.faq summary:after{content:"+";color:var(--red);font-family:'Bebas Neue',sans-serif;font-size:26px;line-height:1}
.faq details[open] summary:after{content:"–"}
.faq .ans{padding:0 22px 20px;color:var(--text);font-size:17px;line-height:1.7}

/* Aviso "en preparación" (casos) */
.notice{background:var(--surface-2);border:1px dashed var(--line);border-radius:var(--r);padding:30px;
  color:var(--muted)}

/* Sector list */
.sector{padding:26px 0;border-bottom:1px solid var(--line-soft)}
.sector:last-child{border-bottom:0}
.sector h3{color:var(--white);margin-bottom:6px;font-size:21px}
.sector p{font-size:16px;color:var(--muted);margin:0;max-width:76ch}

/* Footer */
footer.site{background:#0a0a0a;border-top:1px solid var(--line);padding:56px 0 30px;font-size:15px}
.fcols{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.1fr 1fr;gap:26px}
footer h4{color:var(--white);font-size:13px;letter-spacing:1.5px;text-transform:uppercase;margin:0 0 14px}
footer ul{list-style:none;padding:0;margin:0}
footer li{margin-bottom:9px}
footer a{color:var(--muted)}
footer a:hover{color:var(--white)}
.fbrand{font-family:'Bebas Neue',sans-serif;font-size:30px;letter-spacing:1px;color:var(--white)}
.fbrand .reg{font-size:14px;color:var(--red-bright);vertical-align:super}
.ftag{color:var(--muted-2);font-size:14px;max-width:34ch;margin-top:10px;line-height:1.6}
.fbottom{border-top:1px solid var(--line-soft);margin-top:34px;padding-top:22px;color:var(--muted-2);font-size:13px;
  display:flex;flex-wrap:wrap;justify-content:space-between;gap:12px}

/* Breadcrumb */
.crumbs{font-size:13px;color:var(--muted-2);padding:18px 0 0;letter-spacing:.3px}
.crumbs a{color:var(--muted)}

/* Reveal on scroll */
.reveal{opacity:0;transform:translateY(16px);transition:opacity .6s ease, transform .6s ease}
.reveal.in{opacity:1;transform:none}

/* Responsive */
@media (max-width:900px){
  .hero-grid{grid-template-columns:1fr; gap:26px; padding:54px 0 48px}
  .depth-figure{order:-1;max-width:420px}
  .g3,.g4{grid-template-columns:repeat(2,1fr)}
  .method{grid-template-columns:1fr 1fr}
  .step:nth-child(2){border-right:0}
  .step{border-bottom:1px solid var(--line)}
  .eco{grid-template-columns:1fr 1fr}
  .contact-grid{grid-template-columns:1fr}
  .fcols{grid-template-columns:1fr 1fr}
  .navlinks{display:none; position:absolute; top:68px; left:0; right:0; background:var(--surface-2);
    border-bottom:1px solid var(--line); flex-direction:column; align-items:stretch; gap:0; padding:8px 16px 18px}
  .navlinks.open{display:flex}
  .navlinks a{padding:12px 4px; border-bottom:1px solid var(--line-soft); font-size:16px}
  .navlinks .nav-cta{margin-top:10px;justify-content:center}
  .has-drop{width:100%}
  .dropmenu{position:static;opacity:1;visibility:visible;transform:none;box-shadow:none;border:0;
    background:transparent;padding:0 0 0 10px;min-width:0}
  .dropmenu a{padding:10px 4px;border-bottom:1px solid var(--line-soft)}
  .drop-btn{padding:12px 4px;width:100%;justify-content:space-between;font-size:16px;border-bottom:1px solid var(--line-soft)}
  .burger{display:inline-block}
}
@media (max-width:560px){
  .wrap{padding:0 18px}
  section{padding:52px 0}
  .g2,.g3,.g4{grid-template-columns:1fr}
  .fgrid{grid-template-columns:1fr}
  .stats{gap:26px}
  body{font-size:18px}        /* nunca por debajo de 18px en móvil */
}

/* Accesibilidad */
:focus-visible{outline:2px solid var(--red-bright);outline-offset:2px}
@media (prefers-reduced-motion:reduce){
  *{scroll-behavior:auto!important}
  .reveal{opacity:1;transform:none;transition:none}
  .card:hover{transform:none}
}
.skip{position:absolute;left:-9999px;top:0;background:var(--red);color:#fff;padding:10px 16px;z-index:200}
.skip:focus{left:10px;top:10px}

/* --- Bloque Precedente técnico (obligatorio en cada ficha de obra) --- */
.precedente{border:1px solid var(--line-soft); border-left:3px solid var(--red); border-radius:6px;
  padding:22px 24px; margin-top:8px; background:rgba(255,255,255,.02)}
.precedente dt{font-family:'DM Sans',sans-serif; font-size:12px; letter-spacing:1.5px;
  text-transform:uppercase; color:var(--red-bright); margin-top:16px}
.precedente dt:first-child{margin-top:0}
.precedente dd{margin:5px 0 0; font-size:18px; line-height:1.7; color:var(--text); max-width:74ch}
/* --- Marcador de contenido en validación (fotos/datos pendientes) --- */
.pendiente{border:1px dashed var(--line-soft); border-radius:6px; padding:26px 24px;
  color:var(--muted-2); font-family:'DM Sans',sans-serif; font-size:16px; line-height:1.7}

/* --- Galería de casos de obra (exclusivo del apartado de casos reales) --- */
.obra-galeria{display:grid; grid-template-columns:repeat(2,1fr); gap:18px; margin-top:8px}
.obra-foto{margin:0}
.obra-foto img{width:100%; height:auto; display:block; border-radius:6px; border:1px solid var(--line-soft)}
.obra-foto figcaption{margin-top:8px; font-family:'DM Sans',sans-serif; font-size:15px; line-height:1.55; color:var(--muted-2)}
@media (max-width:600px){.obra-galeria{grid-template-columns:1fr}}