/* ============================================================
   RC CLADDING USA — styles.css
   Paleta: carbón #131311 · ámbar #FFB923 · hueso #F2EFE7
   Tipos: Big Shoulders (títulos) · Barlow (texto) · IBM Plex Mono (datos)
   Firma visual: "juntas" ámbar — líneas finas que imitan las
   juntas de los paneles ACM (el logo mismo son bloques de panel).
   ============================================================ */

:root{
  --ink:#131311;
  --ink-2:#1B1B18;
  --panel:#22221E;
  --amber:#FFB923;
  --amber-hot:#FFD166;
  --amber-deep:#D99A0B;
  --bone:#F2EFE7;
  --bone-2:#E9E5D9;
  --steel:#A6A399;
  --steel-dark:#6E6C63;
  --line:rgba(255,255,255,.09);
  --line-dark:rgba(19,19,17,.12);
  --disp:"Big Shoulders",Impact,sans-serif;
  --body:"Barlow",system-ui,sans-serif;
  --mono:"IBM Plex Mono",ui-monospace,monospace;
  --max:1200px;
  --wa:#25D366;
}

*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
@media (prefers-reduced-motion:reduce){html{scroll-behavior:auto}}
body{
  font-family:var(--body);
  background:var(--ink);
  color:var(--bone);
  line-height:1.6;
  font-size:1.02rem;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
ul{list-style:none}
button{font:inherit;cursor:pointer;background:none;border:0;color:inherit}
.container{max-width:var(--max);margin:0 auto;padding:0 clamp(1rem,4vw,2rem)}

/* ---------- tipografía ---------- */
h1,h2,h3{font-family:var(--disp);text-transform:uppercase;line-height:.95;letter-spacing:.01em}
h2{font-size:clamp(2.1rem,4.6vw,3.4rem);font-weight:800}
h3{font-size:1.25rem;font-weight:700;letter-spacing:.03em}
.eyebrow{
  font-family:var(--mono);font-size:.72rem;letter-spacing:.22em;text-transform:uppercase;
  color:var(--amber);display:inline-flex;align-items:center;gap:.6rem;
}
.eyebrow::before{content:"";width:26px;height:2px;background:var(--amber)}
.lead{color:var(--steel);max-width:56ch;margin-top:.9rem}
.section-head{margin-bottom:2.4rem}
.section-head h2{margin-top:.7rem}

/* ---------- juntas (firma) ---------- */
.seam{height:1px;background:linear-gradient(90deg,var(--amber) 0 64px,var(--line) 64px)}

/* ---------- botones ---------- */
.btn{
  display:inline-flex;align-items:center;gap:.55rem;
  font-family:var(--mono);font-size:.8rem;letter-spacing:.14em;text-transform:uppercase;
  padding:.95rem 1.5rem;border:1px solid transparent;transition:.22s;
}
.btn .arrow{transition:transform .22s}
.btn:hover .arrow{transform:translateX(4px)}
.btn-amber{background:var(--amber);color:var(--ink);font-weight:600}
.btn-amber:hover{background:var(--amber-hot)}
.btn-ghost{border-color:rgba(255,255,255,.35);color:var(--bone)}
.btn-ghost:hover{border-color:var(--amber);color:var(--amber)}
.btn-dark{background:var(--ink);color:var(--bone)}
.btn-dark:hover{background:var(--panel);color:var(--amber)}

/* ============================================================
   TOPBAR + HEADER
   ============================================================ */
.topbar{background:#0C0C0A;border-bottom:1px solid var(--line);font-family:var(--mono);font-size:.72rem;letter-spacing:.08em}
.topbar .container{display:flex;justify-content:space-between;gap:1rem;padding-top:.45rem;padding-bottom:.45rem;color:var(--steel)}
.topbar a:hover{color:var(--amber)}
.topbar .hours{color:var(--steel-dark)}

.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(19,19,17,.82);
  border-bottom:1px solid var(--line);
  transition:box-shadow .25s;
}
.site-header::before{
  content:"";position:absolute;inset:0;z-index:-1;
  -webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px);
}
.site-header.scrolled{box-shadow:0 8px 30px rgba(0,0,0,.45)}
.site-header .container{display:flex;align-items:center;gap:1.6rem;padding-top:.85rem;padding-bottom:.85rem}
.brand img{height:58px;width:auto;transition:height .25s}
.site-header.scrolled .brand img{height:46px}
.nav{display:flex;align-items:center;gap:1.5rem;margin-left:auto}
.nav a{font-family:var(--mono);font-size:.78rem;letter-spacing:.12em;text-transform:uppercase;color:var(--steel);position:relative;padding:.3rem 0}
.nav a:hover{color:var(--bone)}
.nav a.active{color:var(--amber)}
.nav a.active::after{content:"";position:absolute;left:0;right:0;bottom:-4px;height:2px;background:var(--amber)}
.nav .btn{padding:.7rem 1.15rem}
.nav .btn.btn-amber{color:var(--ink)}

.lang-switch{display:flex;border:1px solid var(--line);font-family:var(--mono);font-size:.72rem}
.lang-btn{padding:.45rem .7rem;letter-spacing:.1em;color:var(--steel-dark)}
.lang-btn.active{background:var(--amber);color:var(--ink);font-weight:600}
.lang-btn:not(.active):hover{color:var(--bone)}

.nav-toggle{display:none;flex-direction:column;gap:5px;margin-left:auto;padding:.4rem}
.nav-toggle span{width:26px;height:2px;background:var(--bone);transition:.25s}

/* ============================================================
   HERO — muro de medios a todo el ancho
   ============================================================ */
.hero{position:relative;min-height:min(92vh,860px);display:flex;align-items:flex-end;overflow:hidden;isolation:isolate}
.hero-media{position:absolute;inset:0;z-index:-2;background:#000}
.hero-slide{position:absolute;inset:0;opacity:0;transition:opacity 1.1s ease}
.hero-slide.active{opacity:1}
.hero-img{background-size:cover;background-position:center}
.hero-slide.kenburns{animation:kb 18s ease-in-out infinite alternate}
@keyframes kb{from{transform:scale(1)}to{transform:scale(1.09)}}
video.hero-slide{width:100%;height:100%;object-fit:cover}
.hero::after{
  content:"";position:absolute;inset:0;z-index:-1;
  background:linear-gradient(180deg,rgba(12,12,10,.35) 0%,rgba(12,12,10,.15) 40%,rgba(12,12,10,.88) 100%);
}
.hero-content{padding:0 clamp(1rem,4vw,2rem) clamp(3rem,7vh,5.5rem);max-width:var(--max);margin:0 auto;width:100%}
.hero-content .eyebrow{color:var(--amber-hot)}
.hero-title{
  font-family:var(--disp);font-weight:800;text-transform:uppercase;
  font-size:clamp(3rem,9vw,7rem);line-height:.92;margin:.8rem 0 1rem;
  text-shadow:0 4px 40px rgba(0,0,0,.5);
}
.hero-title .hl{color:var(--amber)}
.hero-sub{max-width:58ch;color:#D9D6CC;font-size:clamp(1rem,1.5vw,1.15rem);margin-bottom:1.8rem}
.hero-ctas{display:flex;gap:.9rem;flex-wrap:wrap}
.hero-bottom{
  display:flex;align-items:center;gap:1.2rem;margin-top:2.4rem;
  font-family:var(--mono);font-size:.72rem;letter-spacing:.16em;color:var(--steel);
}
.hero-dots{display:flex;gap:.5rem}
.hero-dot{width:26px;height:3px;background:rgba(255,255,255,.28);transition:.25s}
.hero-dot.active{background:var(--amber);width:44px}
.hero-scroll{margin-left:auto;display:inline-flex;align-items:center;gap:.5rem;text-transform:uppercase}
.hero-scroll::after{content:"↓";animation:bob 1.6s ease-in-out infinite}
@keyframes bob{0%,100%{transform:translateY(0)}50%{transform:translateY(4px)}}
@media (prefers-reduced-motion:reduce){.hero-scroll::after,.hero-slide.kenburns{animation:none}}

/* ============================================================
   CONTADORES
   ============================================================ */
.stats{background:var(--ink-2);border-top:1px solid var(--line);border-bottom:1px solid var(--line);padding:clamp(3rem,7vw,5rem) 0}
.stats-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:1px;background:var(--line);border:1px solid var(--line)}
.stat{background:var(--ink-2);padding:1.8rem 1.4rem;position:relative}
.stat::before{content:"";position:absolute;top:0;left:0;width:40px;height:3px;background:var(--amber)}
.stat-num{font-family:var(--mono);font-size:clamp(2.2rem,4.5vw,3.4rem);font-weight:500;color:var(--bone);display:block;line-height:1.1}
.stat-num .sfx{color:var(--amber)}
.stat-label{font-family:var(--mono);font-size:.72rem;letter-spacing:.16em;text-transform:uppercase;color:var(--steel)}
.stats-bysystem{margin-top:2.6rem}
.stats-bysystem h3{font-family:var(--mono);font-size:.75rem;letter-spacing:.2em;color:var(--steel);text-transform:uppercase;font-weight:500;margin-bottom:1.1rem}
.sysbar{display:grid;grid-template-columns:180px 1fr 56px;align-items:center;gap:1rem;padding:.55rem 0;border-bottom:1px solid var(--line)}
.sysbar-label{font-family:var(--mono);font-size:.78rem;letter-spacing:.06em;color:var(--bone)}
.sysbar-track{height:6px;background:rgba(255,255,255,.07);overflow:hidden}
.sysbar-fill{display:block;height:100%;width:0;background:linear-gradient(90deg,var(--amber-deep),var(--amber));transition:width 1.4s cubic-bezier(.2,.7,.2,1)}
.go .sysbar-fill{width:var(--w)}
.sysbar-num{font-family:var(--mono);color:var(--amber);text-align:right}

/* ============================================================
   SECCIONES
   ============================================================ */
section.pad{padding:clamp(3.5rem,8vw,6.5rem) 0}

/* sistemas / materiales (sección clara) */
.materials{background:var(--bone);color:var(--ink);padding:clamp(3.5rem,8vw,6.5rem) 0}
.materials .lead{color:var(--steel-dark)}
.materials .eyebrow{color:var(--amber-deep)}
.seam-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:1rem}
.material-card{position:relative;aspect-ratio:4/5;overflow:hidden;background:var(--ink)}
.material-card img{width:100%;height:100%;object-fit:cover;transition:transform .5s,opacity .5s;opacity:.92}
.material-card:hover img{transform:scale(1.06);opacity:1}
.material-card::after{content:"";position:absolute;inset:auto 0 0 0;height:55%;background:linear-gradient(180deg,transparent,rgba(12,12,10,.85))}
.material-card .tag{
  position:absolute;left:1rem;bottom:1rem;z-index:1;color:#fff;
  font-family:var(--disp);font-size:1.15rem;font-weight:700;text-transform:uppercase;letter-spacing:.03em;
  border-left:3px solid var(--amber);padding-left:.6rem;
}

/* ---------- slider de proyectos ---------- */
.projects-section{padding:clamp(3.5rem,8vw,6.5rem) 0;background:var(--ink)}
.projects-head{display:flex;align-items:flex-end;justify-content:space-between;gap:2rem;flex-wrap:wrap}
.proj-controls{display:flex;align-items:center;gap:1.8rem;flex-wrap:wrap}
.proj-dots{display:flex;gap:.6rem;align-items:center}
.proj-dot{width:10px;height:10px;border-radius:50%;background:var(--line);border:1px solid var(--line);cursor:pointer;transition:all .3s ease;transform:scale(1)}
.proj-dot.active{background:var(--amber);border-color:var(--amber);width:24px;border-radius:5px;transform:scale(1.1)}
.proj-dot:hover{border-color:var(--amber);background:rgba(255,171,0,.3)}
.proj-arrows{display:flex;gap:.8rem}
.proj-nav-btn{width:48px;height:48px;border:2px solid var(--line);color:var(--bone);background:transparent;border-radius:6px;display:flex;align-items:center;justify-content:center;transition:all .25s;cursor:pointer;font-weight:600}
.proj-nav-btn svg{width:20px;height:20px}
.proj-nav-btn:hover{border-color:var(--amber);color:var(--amber);background:rgba(255,171,0,.08);transform:scale(1.05)}
.proj-nav-btn:active{transform:scale(0.95)}
.proj-counter{font-family:var(--mono);font-size:.85rem;letter-spacing:.15em;color:var(--amber);font-weight:600;min-width:50px;text-align:right}
.proj-wrapper{position:relative;overflow:hidden;border-radius:4px}
.proj-track{
  display:flex;gap:20px;overflow-x:auto;scroll-snap-type:x mandatory;
  padding:2rem 0 .8rem;scrollbar-width:none;transition:scroll-behavior .3s;
}
.proj-track::-webkit-scrollbar{display:none}
.proj-track .proj-card{flex:0 0 min(400px,84vw);scroll-snap-align:start}

.projects-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(300px,1fr));gap:1.4rem;margin-top:2rem}

/* tarjeta con la descripción dentro de la foto */
.proj-card{
  position:relative;aspect-ratio:4/5;overflow:hidden;
  background:#000;border:1px solid var(--line);cursor:pointer;outline:none;
  transition:transform .25s,border-color .25s;
}
.proj-card:hover,.proj-card:focus-visible{transform:translateY(-5px);border-color:var(--amber)}
.proj-card:focus-visible{box-shadow:0 0 0 2px var(--amber)}
.proj-card .blur{position:absolute;inset:0;background-size:cover;background-position:center;filter:blur(28px) brightness(.5);transform:scale(1.25)}
.proj-card>img{position:absolute;inset:0;width:100%;height:100%;object-fit:contain;transition:transform .5s}
.proj-card:hover>img{transform:scale(1.04)}
.proj-overlay{
  position:absolute;inset:auto 0 0 0;padding:3.2rem 1.3rem 1.3rem;
  background:linear-gradient(180deg,transparent,rgba(10,10,8,.72) 34%,rgba(10,10,8,.94));
}
.proj-sys{font-family:var(--mono);font-size:.66rem;letter-spacing:.16em;text-transform:uppercase;color:var(--amber)}
.proj-overlay h3{margin:.45rem 0 .1rem;color:#fff}
.proj-loc{font-family:var(--mono);font-size:.74rem;color:var(--steel)}
.proj-desc{color:#CBC8BE;font-size:.88rem;line-height:1.5;margin-top:.55rem;display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden}
.proj-open{display:inline-flex;align-items:center;gap:.5rem;margin-top:.9rem;font-family:var(--mono);font-size:.72rem;letter-spacing:.14em;text-transform:uppercase;color:var(--bone)}
.proj-card:hover .proj-open{color:var(--amber)}

/* ---------- por qué nosotros ---------- */
.why{background:var(--ink-2);border-top:1px solid var(--line);padding:clamp(3.5rem,8vw,6.5rem) 0}
.why-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:1px;background:var(--line);border:1px solid var(--line);margin-top:2.2rem}
.why-item{background:var(--ink-2);padding:2rem 1.6rem}
.why-item .num{font-family:var(--mono);color:var(--amber);font-size:.8rem;letter-spacing:.2em}
.why-item h3{margin:.8rem 0 .6rem}
.why-item p{color:var(--steel);font-size:.95rem}

/* ---------- reseñas ---------- */
.testimonials{background:var(--ink-2);border-top:1px solid var(--line);padding:clamp(3.5rem,8vw,6.5rem) 0}
.testimonial-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:1.2rem;margin-top:2.2rem}
.testimonial-card{background:var(--panel);border:1px solid var(--line);padding:1.8rem 1.6rem;display:flex;flex-direction:column}
.testimonial-stars{color:var(--amber);font-size:.95rem;letter-spacing:.15em}
.testimonial-quote{color:var(--bone);font-size:.96rem;line-height:1.55;margin:.9rem 0 1.2rem;flex:1}
.testimonial-name{font-weight:600;color:var(--bone)}
.testimonial-role{font-family:var(--mono);font-size:.72rem;letter-spacing:.06em;color:var(--steel);margin-top:.15rem}

/* ---------- banda CTA ---------- */
.cta-band{background:var(--amber);color:var(--ink);padding:clamp(2.6rem,6vw,4rem) 0}
.cta-band .container{display:flex;align-items:center;justify-content:space-between;gap:1.6rem;flex-wrap:wrap}
.cta-band h2{font-size:clamp(1.8rem,3.6vw,2.6rem)}
.cta-band p{color:rgba(19,19,17,.75);margin-top:.3rem;font-weight:500}

/* ---------- páginas internas ---------- */
.page-hero{background:var(--ink-2);border-bottom:1px solid var(--line);padding:clamp(3rem,7vw,5rem) 0}
.page-hero h1{font-size:clamp(2.6rem,6.5vw,4.6rem);font-weight:800;margin:.7rem 0 .9rem}
.page-hero p{color:var(--steel);max-width:62ch}

/* servicios */
.svc-list{padding:clamp(2.5rem,6vw,4rem) 0;display:grid;gap:1.2rem}
.svc-row{display:grid;grid-template-columns:340px 1fr;gap:1.6rem;background:var(--panel);border:1px solid var(--line);transition:border-color .25s}
.svc-row:hover{border-color:var(--amber)}
.svc-img{aspect-ratio:16/10;overflow:hidden}
.svc-img img{width:100%;height:100%;object-fit:cover}
.svc-body{padding:1.6rem 1.6rem 1.6rem 0;align-self:center}
.svc-body .code{font-family:var(--mono);font-size:.7rem;letter-spacing:.2em;color:var(--amber)}
.svc-body h2{font-size:clamp(1.4rem,2.6vw,1.9rem);margin:.4rem 0 .6rem}
.svc-body p{color:var(--steel);font-size:.96rem;max-width:64ch}

/* about */
.about-split{display:grid;grid-template-columns:380px 1fr;gap:clamp(1.6rem,4vw,3rem);align-items:center;padding:clamp(2.5rem,6vw,4.5rem) 0}
.about-split .portrait{width:100%;border:1px solid var(--line)}
.about-split p{color:var(--steel)}
.team-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:1.2rem;padding-bottom:clamp(2.5rem,6vw,4.5rem)}
.team-card{text-align:center}
.team-card img{width:100%;aspect-ratio:4/5;object-fit:cover;border:1px solid var(--line)}
.team-card h3{margin:.9rem 0 .15rem;font-size:1.05rem}
.team-card .role{font-family:var(--mono);font-size:.68rem;letter-spacing:.18em;text-transform:uppercase;color:var(--amber)}
.practices{background:var(--ink-2);border-top:1px solid var(--line);padding:clamp(3rem,7vw,5rem) 0}
.practice{background:var(--panel);padding:2rem 1.6rem;border:1px solid var(--line)}
.practice .num{font-family:var(--mono);color:var(--amber);letter-spacing:.2em}
.practice h3{margin:.8rem 0 .6rem}
.practice p{color:var(--steel);font-size:.95rem}
.practices .seam-grid{grid-template-columns:repeat(3,1fr)}

/* contacto */
.contact-wrap{display:grid;grid-template-columns:300px 1fr;gap:clamp(1.8rem,4vw,3.2rem);padding:clamp(2.5rem,6vw,4.5rem) 0}
.info-block{margin-bottom:1.5rem}
.info-block .label{font-family:var(--mono);font-size:.68rem;letter-spacing:.2em;text-transform:uppercase;color:var(--amber);display:block;margin-bottom:.25rem}
.info-block a:hover{color:var(--amber)}
.wa-inline{
  display:inline-flex;align-items:center;gap:.6rem;margin-top:.4rem;
  background:var(--wa);color:#fff;padding:.8rem 1.2rem;
  font-family:var(--mono);font-size:.76rem;letter-spacing:.1em;text-transform:uppercase;font-weight:600;
  transition:filter .2s;
}
.wa-inline:hover{filter:brightness(1.1)}
.wa-inline svg{width:18px;height:18px;fill:#fff}

.quote-form{background:var(--panel);border:1px solid var(--line);padding:clamp(1.4rem,3vw,2.2rem)}
.quote-form label{font-family:var(--mono);font-size:.7rem;letter-spacing:.16em;text-transform:uppercase;color:var(--steel);display:block;margin:1rem 0 .35rem}
.quote-form input,.quote-form select,.quote-form textarea{
  width:100%;background:var(--ink);border:1px solid var(--line);color:var(--bone);
  padding:.8rem .9rem;font:inherit;transition:border-color .2s;
}
.quote-form input:focus,.quote-form select:focus,.quote-form textarea:focus{outline:none;border-color:var(--amber)}
.quote-form .grid2{display:grid;grid-template-columns:1fr 1fr;gap:0 1.2rem}
.quote-form button{margin-top:1.4rem}

.contact-map{margin:0 0 clamp(1rem,3vw,2rem);border:1px solid var(--line);filter:grayscale(.25) contrast(1.05);background:var(--panel)}
.contact-map iframe{width:100%;height:340px;display:block;border:0}

/* ---------- footer ---------- */
.site-footer{background:#0C0C0A;border-top:1px solid var(--line);padding:3.5rem 0 2rem}
.site-footer .top{display:grid;grid-template-columns:2fr 1fr 1fr;gap:2rem}
.site-footer .logo{height:76px;width:auto;margin-bottom:1rem}
.site-footer p{color:var(--steel);font-size:.92rem;max-width:36ch}
.site-footer h4{font-family:var(--mono);font-size:.7rem;letter-spacing:.2em;text-transform:uppercase;color:var(--amber);margin-bottom:.9rem;font-weight:500}
.site-footer li{margin-bottom:.5rem}
.site-footer li a:hover,.site-footer li a:focus{color:var(--amber)}
.site-footer li,.site-footer li a{color:var(--steel);font-size:.92rem}
.site-footer .bottom{border-top:1px solid var(--line);margin-top:2.5rem;padding-top:1.4rem;font-family:var(--mono);font-size:.72rem;color:var(--steel-dark);display:flex;justify-content:space-between;gap:1rem;flex-wrap:wrap}

/* ---------- botón flotante de WhatsApp ---------- */
.wa-float{
  position:fixed;right:1.2rem;bottom:1.2rem;z-index:80;
  width:58px;height:58px;border-radius:50%;
  background:var(--wa);display:flex;align-items:center;justify-content:center;
  box-shadow:0 8px 26px rgba(0,0,0,.45);
  transition:transform .2s;
}
.wa-float:hover{transform:scale(1.08)}
.wa-float svg{width:30px;height:30px;fill:#fff}
@media (prefers-reduced-motion:no-preference){
  .wa-float{animation:wapulse 2.6s ease-in-out infinite}
  @keyframes wapulse{0%,100%{box-shadow:0 8px 26px rgba(0,0,0,.45),0 0 0 0 rgba(37,211,102,.45)}50%{box-shadow:0 8px 26px rgba(0,0,0,.45),0 0 0 14px rgba(37,211,102,0)}}
}

/* ---------- lightbox ---------- */
.lightbox{position:fixed;inset:0;z-index:100;background:rgba(8,8,7,.94);display:none;align-items:center;justify-content:center;padding:1rem}
.lightbox.open{display:flex}
.lb-inner{max-width:min(1100px,94vw);width:100%}
.lb-img{width:100%;max-height:72vh;object-fit:contain;background:#000;border:1px solid var(--line)}
.lb-bar{display:flex;align-items:center;gap:1rem;margin-top:.9rem;flex-wrap:wrap}
.lb-title{font-family:var(--disp);text-transform:uppercase;font-size:1.3rem;font-weight:700}
.lb-meta{font-family:var(--mono);font-size:.74rem;color:var(--steel);letter-spacing:.08em}
.lb-desc{color:#CBC8BE;font-size:.9rem;max-width:70ch;margin-top:.5rem;width:100%;order:10}
.lb-count{font-family:var(--mono);font-size:.74rem;color:var(--amber);margin-left:auto}
.lb-prev,.lb-next{width:46px;height:46px;border:1px solid var(--line);font-size:1.1rem}
.lb-prev:hover,.lb-next:hover{border-color:var(--amber);color:var(--amber)}
.lb-close{position:absolute;top:1rem;right:1.2rem;font-size:2rem;color:var(--steel)}
.lb-close:hover{color:var(--amber)}

/* ---------- reveal ---------- */
.reveal{opacity:0;transform:translateY(22px);transition:opacity .7s,transform .7s}
.reveal.in{opacity:1;transform:none}
@media (prefers-reduced-motion:reduce){.reveal{opacity:1;transform:none;transition:none}}

/* ============================================================
   RESPONSIVE
   ============================================================ */
@media (max-width:1000px){
  .seam-grid{grid-template-columns:repeat(2,1fr)}
  .stats-grid{grid-template-columns:repeat(2,1fr)}
  .svc-row{grid-template-columns:1fr}
  .svc-body{padding:0 1.6rem 1.6rem}
  .about-split,.contact-wrap{grid-template-columns:1fr}
  .site-footer .top{grid-template-columns:1fr 1fr}
  .practices .seam-grid,.why-grid{grid-template-columns:1fr}
  .testimonial-grid{grid-template-columns:1fr}
}
@media (max-width:820px){
  .topbar .hours{display:none}
  .nav-toggle{display:flex}
  .nav{
    position:fixed;inset:0;top:0;background:rgba(12,12,10,.98);
    flex-direction:column;justify-content:center;gap:1.6rem;
    transform:translateX(100%);transition:transform .3s;z-index:55;
  }
  .nav.open{transform:none}
  .nav a{font-size:1rem}
  body.nav-open{overflow:hidden}
  .nav-toggle{position:relative;z-index:56}
  body.nav-open .nav-toggle span:nth-child(1){transform:translateY(7px) rotate(45deg)}
  body.nav-open .nav-toggle span:nth-child(2){opacity:0}
  body.nav-open .nav-toggle span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}
  .lang-switch{order:-1;margin-left:auto;margin-right:.8rem}
  .sysbar{grid-template-columns:120px 1fr 48px}
  .proj-controls{flex-direction:row;gap:1rem;flex-wrap:nowrap}
  .proj-dot{width:8px;height:8px}
  .proj-dot.active{width:20px;border-radius:4px}
  .proj-nav-btn{width:44px;height:44px}
  .proj-counter{font-size:.8rem;min-width:45px}
}
@media (max-width:560px){
  .stats-grid{grid-template-columns:1fr 1fr}
  .seam-grid{grid-template-columns:1fr 1fr;gap:.7rem}
  .team-grid{grid-template-columns:1fr 1fr;gap:.8rem}
  .hero{min-height:86vh}
  .quote-form .grid2{grid-template-columns:1fr}
  .cta-band .container{flex-direction:column;align-items:flex-start}
  .proj-controls{display:flex;flex-wrap:nowrap;gap:.8rem;align-items:center;justify-content:flex-end}
  .proj-dots{gap:.5rem}
  .proj-dot{width:7px;height:7px}
  .proj-dot.active{width:16px;height:7px;border-radius:3px}
  .proj-arrows{gap:.6rem}
  .proj-nav-btn{width:40px;height:40px;padding:.6rem}
  .proj-nav-btn svg{width:18px;height:18px}
  .proj-counter{font-size:.75rem;min-width:40px;text-align:right}
}

/* ---------- ajustes finos multi-dispositivo ---------- */
@media (max-width:480px){
  .topbar .container a[href^="mailto"]{display:none}
  .stats-grid{grid-template-columns:1fr 1fr}
  .stat{padding:1.3rem 1rem}
  .sysbar{grid-template-columns:96px 1fr 42px;gap:.6rem}
  .sysbar-label{font-size:.68rem}
  .proj-track .proj-card{flex-basis:88vw}
  .proj-arrows button{width:44px;height:44px}
  .hero-title{font-size:clamp(2.6rem,13vw,4rem)}
  .btn{padding:.85rem 1.15rem;font-size:.74rem}
  .lb-bar{gap:.6rem}
  .wa-float{width:52px;height:52px;right:.9rem;bottom:.9rem}
}

@media (max-width:380px){
  .projects-head{gap:1rem}
  .proj-controls{gap:.6rem}
  .proj-dots{gap:.4rem}
  .proj-dot{width:6px;height:6px}
  .proj-dot.active{width:14px;height:6px}
  .proj-nav-btn{width:36px;height:36px;border-width:1.5px;font-size:.8rem}
  .proj-nav-btn svg{width:16px;height:16px}
  .proj-counter{font-size:.7rem;min-width:35px}
  .proj-track .proj-card{flex-basis:90vw}
}
@media (min-width:1400px){
  .proj-track .proj-card{flex-basis:440px}
}