:root{--green:#173f32;--green2:#1f7253;--orange:#d98632;--ink:#17201d;--muted:#68736e;--paper:#f6f3ec;--line:#ded4c4;--white:#fff}
*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;font-family:Arial,Helvetica,sans-serif;color:var(--ink);background:var(--paper)}a{text-decoration:none;color:inherit}p{color:var(--muted);line-height:1.65}h1,h2,h3,p{margin-top:0}
header{position:fixed;top:0;left:0;right:0;z-index:20;display:flex;justify-content:space-between;align-items:center;padding:10px 6vw;color:var(--green);background:rgba(255,255,255,.94);box-shadow:0 8px 24px rgba(23,32,29,.12);backdrop-filter:blur(8px)}
.brand{display:flex;align-items:center}.brand-logo{display:block;width:clamp(170px,19vw,265px);height:auto}nav{display:flex;gap:18px;font-weight:800;font-size:13px;color:var(--green)}.navbtn{padding:8px 12px;color:white;background:var(--green)}nav a:hover{color:var(--orange)}.lang-switch{display:flex;align-items:center;gap:6px;margin-left:2px;font-weight:900}.lang-switch a{color:var(--muted)}.lang-switch a.active{color:var(--orange)}.lang-switch span{color:var(--line)}
.hero{min-height:66vh;display:grid;align-items:end;padding:112px 6vw 54px;color:white;background:linear-gradient(90deg,rgba(20,30,26,.95) 0%,rgba(20,30,26,.88) 34%,rgba(20,30,26,.32) 58%,rgba(20,30,26,0) 78%),url("imagenes/herramienta-discos-negros-cabecera.jpg") center/cover}.hero-grid{display:grid;grid-template-columns:1fr;gap:48px;align-items:end}.hero h1{max-width:760px}.eyebrow{color:var(--orange);font-size:13px;font-weight:900;letter-spacing:.1em;text-transform:uppercase}h1{font-size:clamp(44px,7vw,92px);line-height:.95;margin-bottom:16px}h2{font-size:clamp(34px,5vw,62px);line-height:1.03;margin-bottom:18px}.hero p{max-width:760px;color:rgba(255,255,255,.9);font-size:clamp(18px,2vw,23px)}
.btn{display:inline-flex;align-items:center;justify-content:center;min-height:50px;padding:0 20px;margin:6px 8px 0 0;border:1px solid transparent;font-weight:900}.primary{color:white;background:var(--green2)}.whatsapp{color:white;background:#25d366;border-color:#25d366}.whatsapp:hover{background:#1fb65a}.hero-whatsapp{min-height:56px;padding:0 24px;box-shadow:0 14px 30px rgba(37,211,102,.28)}.hero-actions{display:flex;align-items:center;gap:8px;flex-wrap:nowrap;margin-top:22px;max-width:1240px}.hero-actions .btn{margin:0;white-space:nowrap}.hero-actions .primary{background:var(--green)}.hero-actions .light{background:rgba(23,32,29,.18);backdrop-filter:blur(3px)}.wa-icon{width:21px;height:21px;margin-right:9px;flex:0 0 auto}.light{color:white;border-color:rgba(255,255,255,.65)}.panel{padding:26px;background:rgba(255,255,255,.15);border:1px solid rgba(255,255,255,.36)}.panel h3{font-size:20px;line-height:1.25;margin-bottom:12px}.panel p{color:rgba(255,255,255,.86);font-size:16px;line-height:1.55}
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.comparison-section{background:#fff}.comparison-pages{display:grid;gap:34px;margin-top:28px}.comparison-pages figure{margin:0;background:var(--paper);border:1px solid var(--line);box-shadow:0 18px 42px rgba(23,32,29,.10);padding:18px}.comparison-pages img{display:block;width:100%;height:auto;background:white}.comparison-pages figcaption{padding:14px 4px 2px;color:var(--green);font-weight:900}.toolgrid{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}.tool{min-height:245px;padding:26px;background:white;border:1px solid var(--line);box-shadow:0 12px 30px rgba(23,32,29,.06)}.tool span{color:var(--orange);font-size:13px;font-weight:900}.tool h3{margin-top:12px;color:var(--green)}
.advice{display:grid;grid-template-columns:1fr 1fr;gap:0;padding:0;background:white}.advice-img{min-height:500px;background:url("imagenes/herramienta-discos-negros-detalle.jpg") center/cover}.advice-text{padding:76px 6vw;align-self:center}.points{display:grid;grid-template-columns:1fr 1fr;gap:12px;margin-top:24px}.point{padding:15px;background:var(--paper);border:1px solid var(--line);font-weight:800}
.catalogs-section{background:var(--green);color:white}.catalogs-section p{color:rgba(255,255,255,.78)}.cataloggrid{display:grid;grid-template-columns:repeat(4,1fr);gap:16px;margin-top:28px}.catalog{padding:24px;background:rgba(255,255,255,.08);border:1px solid rgba(255,255,255,.18);min-height:230px;display:flex;flex-direction:column;justify-content:space-between}.featured-catalog{background:rgba(217,134,50,.18);border-color:rgba(217,134,50,.55)}.catalog h3{color:white}.catalog a{color:var(--orange);font-weight:900}
.contact-band{display:grid;grid-template-columns:1fr 1fr;gap:30px;background:white}.contact-band.single-contact{grid-template-columns:1fr}.contact-card{padding:32px;color:white;background:linear-gradient(rgba(23,32,29,.80),rgba(23,32,29,.88)),url("imagenes/bosque-sostenible.jpg") center/cover}.contact-card p{color:rgba(255,255,255,.86)}.contact-card a{color:white;font-weight:900}.contact-plain{background:var(--green);box-shadow:inset 0 0 0 1px rgba(255,255,255,.12)}form{display:grid;gap:14px;padding:28px;background:var(--paper);border:1px solid var(--line)}input,textarea,select{width:100%;padding:14px;border:1px solid var(--line);font:inherit}label{font-weight:900}.hp-field{position:absolute;left:-9999px;width:1px;height:1px;overflow:hidden}.row{display:grid;grid-template-columns:1fr 1fr;gap:14px}.quote-section{background:var(--paper)}.quote-wrap{display:grid;grid-template-columns:.82fr 1.18fr;gap:34px;align-items:start}.quote-copy{position:sticky;top:110px;padding:30px;color:white;background:linear-gradient(rgba(23,32,29,.82),rgba(23,32,29,.9)),url("imagenes/herramienta-discos-negros-cabecera.jpg") center/cover}.quote-copy p{color:rgba(255,255,255,.86)}.quote-form{display:grid;gap:18px;padding:28px;background:white;border:1px solid var(--line);box-shadow:0 16px 40px rgba(23,32,29,.08)}fieldset{border:1px solid var(--line);padding:20px;margin:0;background:#fff}legend{padding:0 8px;color:var(--green);font-weight:900}.checkgrid{display:grid;grid-template-columns:repeat(3,1fr);gap:10px;margin-top:8px}.checkgrid label,.inline-check{display:flex;align-items:center;gap:8px;font-weight:700;color:var(--muted)}.checkgrid input,.inline-check input{width:auto}.form-note{font-size:14px;color:var(--muted);margin:0}.quote-actions{display:flex;flex-wrap:wrap;gap:10px;align-items:center}.quote-actions .btn{margin:0}.small-input{max-width:260px}@media(max-width:980px){.quote-wrap{grid-template-columns:1fr}.quote-copy{position:static}.checkgrid{grid-template-columns:1fr 1fr}}@media(max-width:640px){.quote-form{padding:18px}.checkgrid{grid-template-columns:1fr}fieldset{padding:16px}}
footer{display:flex;justify-content:space-between;padding:28px 6vw;color:rgba(255,255,255,.75);background:var(--ink)}
@media(max-width:980px){.hero-actions{flex-wrap:wrap}header{position:sticky;top:0;display:block;padding:10px 14px}.brand{justify-content:center;margin-bottom:10px}.brand-logo{width:180px;max-width:64vw}nav{display:grid;width:100%;grid-template-columns:repeat(2,minmax(0,1fr));gap:8px;font-size:12px}nav a,.lang-switch{min-height:38px;display:flex;align-items:center;justify-content:center;padding:9px 8px;background:rgba(23,63,50,.07);text-align:center;line-height:1.15}.lang-switch{gap:8px;margin-left:0;background:rgba(217,134,50,.10)}.lang-switch a{min-height:auto;padding:0;background:transparent}.navbtn{padding:9px 8px;color:white;background:var(--green)}.hero{min-height:auto;padding:54px 18px 40px}.hero-grid,.strip,.head,.toolgrid,.advice,.points,.cataloggrid,.contact-band,.row,.technical-note,.comparison-grid,.comparison-card{grid-template-columns:1fr}section,.advice-text{padding:54px 18px}.advice-img{min-height:320px}.strip div{padding:22px 18px}footer{display:block;text-align:center;line-height:1.6}}
@media(max-width:640px){.brand-logo{width:158px}nav{grid-template-columns:1fr 1fr;font-size:11px}.hero{padding:42px 16px 34px}h1{font-size:clamp(36px,13vw,58px)}h2{font-size:clamp(28px,8vw,44px)}.hero p{font-size:16px}.btn{display:flex;width:100%;min-height:48px;margin:8px 0 0;padding:0 14px;text-align:center}form{padding:22px 16px}input,textarea,select{font-size:16px}}