/* ═══════════════════════════════════════════════════════════════
   VELATOPH® — Sistema de protección sísmica
   Estilo industrial de alta ingeniería · paleta navy / acero / rojo
   ═══════════════════════════════════════════════════════════════ */

:root{
  --navy:#1F3864;       /* primario de marca */
  --navy-deep:#162A4C;  /* navy más profundo */
  --steel:#2E75B6;      /* azul acero secundario */
  --steel-soft:#5b95cb;
  --red:#C00000;        /* CTA / acento */
  --red-dark:#9e0000;
  --ink:#111827;        /* casi negro */
  --body:#4B5563;       /* texto cuerpo */
  --bg:#F9FAFB;         /* blanco roto */
  --line:#E5E7EB;       /* separadores */
  --white:#fff;
  --max:1220px;
  --shadow-sm:0 4px 18px rgba(17,24,39,.08);
  --shadow:0 22px 60px rgba(17,24,39,.12);
  --shadow-card:0 18px 44px rgba(31,56,100,.10);
  --ff-head:'Montserrat',system-ui,Arial,sans-serif;
  --ff-body:'Open Sans',system-ui,Arial,sans-serif;
  --ff-mono:'IBM Plex Mono','Space Mono',ui-monospace,monospace;
}

*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{
  font-family:var(--ff-body);
  color:var(--body);
  background:var(--white);
  line-height:1.7;
  font-size:16px;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
img{max-width:100%;display:block}
a{color:var(--steel);text-decoration:none}
h1,h2,h3,h4{font-family:var(--ff-head);color:var(--ink);line-height:1.08;font-weight:800;letter-spacing:-.01em}
.container{width:min(92%,var(--max));margin-inline:auto}

/* mono eyebrow / labels */
.kicker{
  font-family:var(--ff-mono);
  font-size:.78rem;
  letter-spacing:.32em;
  text-transform:uppercase;
  font-weight:500;
  color:var(--steel);
  display:inline-flex;align-items:center;gap:.7em;
}
.kicker::before{content:"";width:34px;height:2px;background:var(--red);display:inline-block}
.kicker.on-dark{color:var(--steel-soft)}

/* ── Buttons ───────────────────────────────────────────── */
.btn{
  font-family:var(--ff-head);
  font-weight:700;font-size:.92rem;
  letter-spacing:.04em;text-transform:uppercase;
  display:inline-flex;align-items:center;gap:.6em;
  padding:16px 28px;border-radius:4px;border:2px solid transparent;
  cursor:pointer;transition:transform .2s ease,box-shadow .2s ease,background .2s ease,color .2s ease;
  white-space:nowrap;
}
.btn svg{width:18px;height:18px}
.btn-red{background:var(--red);color:#fff;box-shadow:0 14px 30px rgba(192,0,0,.28)}
.btn-red:hover{background:var(--red-dark);transform:translateY(-2px);box-shadow:0 18px 38px rgba(192,0,0,.36)}
.btn-ghost{border-color:rgba(255,255,255,.7);color:#fff;background:transparent}
.btn-ghost:hover{background:#fff;color:var(--navy);transform:translateY(-2px)}
.btn-navy{background:var(--navy);color:#fff}
.btn-navy:hover{background:var(--navy-deep);transform:translateY(-2px)}
.btn-outline-navy{border-color:var(--navy);color:var(--navy);background:transparent}
.btn-outline-navy:hover{background:var(--navy);color:#fff;transform:translateY(-2px)}

/* ═══════════════ TOPBAR ═══════════════ */
.topbar{background:var(--ink);color:#cdd5e0;font-size:.82rem}
.topbar .container{display:flex;align-items:center;justify-content:space-between;gap:18px;height:42px}
.topbar .tb-item{display:inline-flex;align-items:center;gap:.5em;white-space:nowrap}
.topbar svg{width:15px;height:15px;stroke:var(--steel-soft)}
.topbar a{color:#cdd5e0}
.topbar a:hover{color:#fff}
.tb-social{display:flex;gap:14px}
.tb-social a{display:inline-flex}
.tb-social svg{stroke:#cdd5e0}
.tb-social a:hover svg{stroke:#fff}

/* ═══════════════ NAVBAR ═══════════════ */
.nav{
  background:var(--navy);position:sticky;top:0;z-index:200;
  transition:background .3s ease,box-shadow .3s ease,padding .3s ease;
}
.nav.scrolled{background:rgba(22,42,76,.97);backdrop-filter:blur(12px);box-shadow:0 10px 30px rgba(0,0,0,.25)}
.nav .container{display:flex;align-items:center;justify-content:space-between;gap:24px;padding:18px 0;transition:padding .3s ease}
.nav.scrolled .container{padding:12px 0}
.brand{display:flex;align-items:center;gap:12px;flex-shrink:0}
.brand-mark{width:42px;height:42px;flex-shrink:0}
.brand-name{font-family:var(--ff-head);font-weight:900;font-size:1.5rem;color:#fff;letter-spacing:.02em;line-height:1}
.brand-name sup{font-size:.5em;font-weight:700;top:-.9em}
.brand-sub{display:block;font-family:var(--ff-mono);font-size:.6rem;letter-spacing:.22em;color:var(--steel-soft);text-transform:uppercase;margin-top:3px}
.nav-links{display:flex;align-items:center;gap:6px}
.nav-links>a{
  font-family:var(--ff-head);font-weight:600;font-size:.83rem;letter-spacing:.04em;
  text-transform:uppercase;color:#e7edf5;padding:8px 11px;border-radius:3px;position:relative;
  transition:color .18s ease;
}
.nav-links>a::after{content:"";position:absolute;left:11px;right:11px;bottom:2px;height:2px;background:var(--red);transform:scaleX(0);transform-origin:left;transition:transform .22s ease}
.nav-links>a:hover{color:#fff}
.nav-links>a:hover::after{transform:scaleX(1)}
.nav-links>a.alpha-link{background:linear-gradient(135deg,#4a9eff,#ffd24a);-webkit-background-clip:text;background-clip:text;-webkit-text-fill-color:transparent;font-weight:800}
.nav-links>a.alpha-link::after{display:none}
.nav-cta{
  background:var(--red);color:#fff!important;padding:12px 20px!important;border-radius:4px;
  box-shadow:0 10px 24px rgba(192,0,0,.32);font-weight:700;
}
.nav-cta::after{display:none!important}
.nav-cta:hover{background:var(--red-dark);transform:translateY(-1px)}
.nav-toggle{display:none;background:none;border:none;cursor:pointer;padding:8px;flex-direction:column;gap:5px}
.nav-toggle span{width:26px;height:2.5px;background:#fff;border-radius:2px;transition:.25s}

/* ═══════════════ HERO ═══════════════ */
.hero{
  position:relative;color:#fff;
  min-height:clamp(560px,84vh,820px);
  display:flex;align-items:center;
  background:linear-gradient(rgba(17,24,39,.72),rgba(22,42,76,.78)),url('images/home-hero.png') center/cover no-repeat;
  background-attachment:fixed;
  padding:120px 0 150px;
  overflow:hidden;
}
.hero::after{ /* diagonal industrial inferior */
  content:"";position:absolute;left:0;right:0;bottom:-1px;height:90px;
  background:var(--white);
  clip-path:polygon(0 100%,100% 100%,100% 38%,0 100%);
}
.hero-inner{max-width:880px;position:relative;z-index:2}
.hero .kicker{margin-bottom:22px}
.hero h1{
  font-size:clamp(2.4rem,5.6vw,4.4rem);font-weight:900;color:#fff;
  text-transform:uppercase;letter-spacing:-.015em;margin-bottom:22px;
  text-shadow:0 4px 30px rgba(0,0,0,.35);
}
.hero h1 .accent{color:#fff;position:relative}
.hero p.sub{font-size:clamp(1.05rem,1.6vw,1.28rem);color:rgba(255,255,255,.86);max-width:680px;margin-bottom:34px;line-height:1.6}
.hero-actions{display:flex;flex-wrap:wrap;gap:16px}
.scroll-cue{position:absolute;left:50%;bottom:104px;transform:translateX(-50%);z-index:3;color:rgba(255,255,255,.7);display:flex;flex-direction:column;align-items:center;gap:7px;font-family:var(--ff-mono);font-size:.62rem;letter-spacing:.3em;text-transform:uppercase}
.scroll-cue .mouse{width:22px;height:36px;border:2px solid rgba(255,255,255,.6);border-radius:12px;position:relative}
.scroll-cue .mouse::before{content:"";position:absolute;left:50%;top:7px;width:3px;height:7px;background:#fff;border-radius:2px;transform:translateX(-50%);animation:wheel 1.6s ease-in-out infinite}
@keyframes wheel{0%{opacity:0;transform:translate(-50%,0)}40%{opacity:1}100%{opacity:0;transform:translate(-50%,11px)}}

/* ═══════════════ TRUST STRIP (overlap hero) ═══════════════ */
.trust{position:relative;z-index:5;margin-top:-78px}
.trust-grid{
  background:#fff;border-radius:8px;box-shadow:var(--shadow);
  display:grid;grid-template-columns:repeat(4,1fr);overflow:hidden;
  border:1px solid var(--line);
}
.trust-item{padding:34px 28px;display:flex;flex-direction:column;gap:6px;position:relative}
.trust-item+.trust-item::before{content:"";position:absolute;left:0;top:24px;bottom:24px;width:1px;background:var(--line)}
.trust-item .ti-icon{color:var(--steel)}
.trust-item .ti-icon svg{width:38px;height:38px;stroke:var(--steel);stroke-width:1.6;fill:none}
.trust-num{font-family:var(--ff-head);font-weight:900;font-size:2.6rem;color:var(--navy);line-height:1;margin-top:8px}
.trust-label{font-size:.92rem;color:var(--body);font-weight:600}

/* ═══════════════ SECTION base ═══════════════ */
section{padding:96px 0}
.sec-head{max-width:760px;margin-bottom:54px}
.sec-head.center{margin-inline:auto;text-align:center}
.sec-head.center .kicker{justify-content:center}
.sec-head h2{font-size:clamp(1.9rem,3.4vw,2.9rem);color:var(--navy);margin:18px 0 16px;text-transform:uppercase}
.sec-head p{font-size:1.08rem;color:var(--body)}
.bg-soft{background:var(--bg)}

/* ═══════════════ SISTEMAS grid ═══════════════ */
.sys-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:26px}
.sys-card{
  background:#fff;border:1px solid var(--line);border-radius:8px;padding:38px 32px;
  box-shadow:var(--shadow-card);position:relative;overflow:hidden;
  transition:transform .28s ease,box-shadow .28s ease,border-color .28s ease;
}
.sys-card::before{content:"";position:absolute;left:0;top:0;height:4px;width:0;background:var(--red);transition:width .3s ease}
.sys-card:hover{transform:translateY(-8px);box-shadow:0 30px 60px rgba(31,56,100,.16);border-color:transparent}
.sys-card:hover::before{width:100%}
.sys-icon{width:64px;height:64px;border:2px solid var(--steel);border-radius:8px;display:flex;align-items:center;justify-content:center;margin-bottom:22px;transition:.3s ease;color:var(--steel)}
.sys-icon svg{width:34px;height:34px;stroke:var(--steel);stroke-width:1.8;fill:none}
.sys-card:hover .sys-icon{border-color:var(--red);color:var(--red)}
.sys-card:hover .sys-icon svg{stroke:var(--red)}
.sys-tag{font-family:var(--ff-mono);font-size:.72rem;letter-spacing:.18em;color:var(--steel);font-weight:600;text-transform:uppercase}
.sys-card h3{font-size:1.32rem;color:var(--navy);margin:6px 0 12px;text-transform:uppercase;font-weight:800}
.sys-card p{font-size:.98rem;color:var(--body);margin-bottom:18px}
.sys-more{font-family:var(--ff-head);font-weight:700;font-size:.85rem;text-transform:uppercase;letter-spacing:.05em;color:var(--red);display:inline-flex;align-items:center;gap:.5em;transition:gap .2s ease}
.sys-card:hover .sys-more{gap:.9em}

/* ═══════════════ ¿POR QUÉ? dark ═══════════════ */
.why{background:var(--navy);color:#fff;position:relative;overflow:hidden}
.why::before{content:"";position:absolute;inset:0;background:
   radial-gradient(circle at 88% 12%,rgba(46,117,182,.30),transparent 45%);pointer-events:none}
.why .grid2{display:grid;grid-template-columns:1fr 1fr;gap:60px;align-items:center;position:relative;z-index:2}
.why-img{position:relative;border-radius:10px;overflow:hidden;box-shadow:0 30px 70px rgba(0,0,0,.4)}
.why-img img{width:100%;height:100%;object-fit:cover;aspect-ratio:4/3.4}
.why-img .img-tag{position:absolute;left:18px;bottom:18px;background:rgba(17,24,39,.82);color:#fff;font-family:var(--ff-mono);font-size:.72rem;letter-spacing:.1em;padding:9px 14px;border-left:3px solid var(--red);backdrop-filter:blur(4px)}
.why h2{color:#fff;font-size:clamp(1.9rem,3.2vw,2.7rem);text-transform:uppercase;margin:18px 0 26px}
.why-list{list-style:none;display:grid;gap:20px}
.why-list li{display:grid;grid-template-columns:auto 1fr;gap:16px;align-items:start}
.why-check{width:30px;height:30px;border-radius:50%;background:var(--red);display:flex;align-items:center;justify-content:center;flex-shrink:0;margin-top:2px}
.why-check svg{width:16px;height:16px;stroke:#fff;stroke-width:3;fill:none}
.why-list strong{display:block;color:#fff;font-family:var(--ff-head);font-size:1.04rem;font-weight:700;margin-bottom:2px}
.why-list span{color:rgba(255,255,255,.72);font-size:.95rem}

/* ═══════════════ DIAGRAMA SÍSMICO ═══════════════ */
.seismo{background:var(--bg);position:relative}
.seismo-wrap{display:grid;grid-template-columns:1fr 1fr;gap:50px;align-items:center}
.seismo-copy h2{font-size:clamp(1.8rem,3.2vw,2.7rem);color:var(--navy);text-transform:uppercase;margin:16px 0 18px}
.seismo-copy p{margin-bottom:20px;font-size:1.05rem}
.seismo-readout{display:grid;gap:16px;margin:26px 0 30px}
.ro-row{display:grid;gap:7px}
.ro-row .ro-top{display:flex;justify-content:space-between;align-items:baseline;font-family:var(--ff-mono);font-size:.78rem;letter-spacing:.08em;text-transform:uppercase}
.ro-row .ro-top .ro-name{color:var(--navy);font-weight:600}
.ro-row .ro-top .ro-val{color:var(--body)}
.ro-bar{height:12px;border-radius:6px;background:#e4e9f0;overflow:hidden}
.ro-fill{height:100%;width:0%;border-radius:6px;transition:width .1s linear}
.ro-fill.fixed{background:linear-gradient(90deg,#e0a106,var(--red))}
.ro-fill.iso{background:linear-gradient(90deg,var(--steel),#1f9e5e)}
.seismo-controls{display:flex;align-items:center;gap:18px;flex-wrap:wrap}
.seismo-controls label{font-family:var(--ff-mono);font-size:.74rem;letter-spacing:.12em;text-transform:uppercase;color:var(--body)}
.seismo-controls input[type=range]{accent-color:var(--red);width:150px}

/* stage */
.seismo-stage{
  background:linear-gradient(180deg,#fff,#eef3f8);
  border:1px solid var(--line);border-radius:12px;
  box-shadow:var(--shadow-card);
  padding:30px 24px 0;position:relative;overflow:hidden;
  min-height:430px;display:flex;flex-direction:column;
}
.stage-labels{display:flex;justify-content:space-around;font-family:var(--ff-head);font-size:.78rem;font-weight:700;text-transform:uppercase;letter-spacing:.05em;color:var(--navy);margin-bottom:8px}
.stage-labels span small{display:block;font-family:var(--ff-mono);font-weight:400;font-size:.62rem;letter-spacing:.08em;color:var(--body);text-transform:none}
.scene{flex:1;position:relative;display:flex;align-items:flex-end;justify-content:space-around;padding-bottom:0}
.bldg{width:88px;display:flex;flex-direction:column;gap:5px;will-change:transform}
.bldg .floor{height:30px;background:#33517f;border:1px solid #28406a;border-radius:3px;position:relative;display:grid;grid-template-columns:1fr 1fr;gap:5px;padding:6px}
.bldg .floor i{background:rgba(255,255,255,.32);border-radius:1px}
.bldg .roof{height:12px;background:var(--navy);border-radius:3px 3px 0 0}
.fixed-inner{transform-origin:bottom center;will-change:transform}
.iso-super{will-change:transform}
.iso-pads{display:flex;justify-content:space-between;height:26px;padding:0 8px;will-change:transform;transform-origin:bottom center}
.iso-pad{width:20px;height:26px;background:repeating-linear-gradient(0deg,#1d1d1d,#1d1d1d 3px,#444 3px,#444 6px);border-radius:2px;transform-origin:bottom center;will-change:transform}
.iso-cap,.fix-base{height:9px;background:var(--ink);border-radius:2px}
.ground-layer{position:absolute;left:-30%;right:-30%;bottom:0;height:54px;will-change:transform}
.ground-layer .soil{height:100%;background:
   repeating-linear-gradient(90deg,rgba(0,0,0,.05) 0 2px,transparent 2px 26px),
   linear-gradient(180deg,#6f5b45,#4a3c2c);
   border-top:4px solid #8a7458;}
.scene-inner{position:relative;width:100%;display:flex;align-items:flex-end;justify-content:space-around;height:330px}
.col{display:flex;flex-direction:column;align-items:center;position:relative;z-index:2;padding-bottom:54px}
.tag-float{position:absolute;top:-2px;font-family:var(--ff-mono);font-size:.6rem;letter-spacing:.06em;padding:3px 8px;border-radius:3px;white-space:nowrap}
.tag-fixed{background:rgba(192,0,0,.12);color:var(--red);border:1px solid rgba(192,0,0,.3)}
.tag-iso{background:rgba(31,158,94,.14);color:#1f8a5b;border:1px solid rgba(31,158,94,.35)}

/* ═══════════════ PROYECTOS ═══════════════ */
.proj-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.proj-card{position:relative;border-radius:8px;overflow:hidden;aspect-ratio:4/3.2;cursor:pointer;box-shadow:var(--shadow-card)}
.proj-card img{width:100%;height:100%;object-fit:cover;transition:transform .5s ease}
.proj-card::after{content:"";position:absolute;inset:0;background:linear-gradient(transparent 30%,rgba(17,24,39,.86));transition:background .3s ease}
.proj-card:hover img{transform:scale(1.07)}
.proj-meta{position:absolute;left:0;right:0;bottom:0;padding:24px;z-index:2;transform:translateY(14px);transition:transform .3s ease}
.proj-card:hover .proj-meta{transform:translateY(0)}
.proj-meta .pm-loc{font-family:var(--ff-mono);font-size:.72rem;letter-spacing:.14em;color:var(--steel-soft);text-transform:uppercase;display:flex;align-items:center;gap:.5em}
.proj-meta h3{color:#fff;font-size:1.22rem;text-transform:uppercase;margin:6px 0 4px}
.proj-meta p{color:rgba(255,255,255,.82);font-size:.88rem;margin:0;max-height:0;opacity:0;overflow:hidden;transition:max-height .35s ease,opacity .3s ease}
.proj-card:hover .proj-meta p{max-height:60px;opacity:1}
.proj-cta-row{display:flex;justify-content:center;margin-top:46px}

/* ═══════════════ CERTIFICACIONES ═══════════════ */
.cert{background:#fff;border-top:1px solid var(--line)}
.cert-grid{display:grid;grid-template-columns:repeat(6,1fr);gap:18px;margin-top:14px}
.cert-badge{
  border:1px solid var(--line);border-radius:8px;background:#fff;
  padding:26px 16px;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:10px;
  text-align:center;transition:.25s ease;filter:grayscale(1);opacity:.72;
}
.cert-badge:hover{filter:grayscale(0);opacity:1;border-color:var(--steel);box-shadow:var(--shadow-card);transform:translateY(-4px)}
.cert-badge .cb-mark{width:46px;height:46px;border-radius:50%;border:2px solid var(--navy);display:flex;align-items:center;justify-content:center;color:var(--navy)}
.cert-badge:hover .cb-mark{border-color:var(--steel);color:var(--steel)}
.cert-badge .cb-mark svg{width:24px;height:24px;stroke:currentColor;stroke-width:1.7;fill:none}
.cert-badge strong{font-family:var(--ff-head);font-size:.92rem;color:var(--navy);font-weight:800}
.cert-badge span{font-family:var(--ff-mono);font-size:.62rem;letter-spacing:.05em;color:var(--body);text-transform:uppercase}

/* ═══════════════ ALPHA SUITE ═══════════════ */
.alpha{background:linear-gradient(135deg,#0d1117,#161b22);color:#fff;position:relative;overflow:hidden;border-top:3px solid var(--steel)}
.alpha::before{content:"";position:absolute;inset:0;background:radial-gradient(circle at 15% 20%,rgba(74,158,255,.16),transparent 40%),radial-gradient(circle at 85% 80%,rgba(255,210,74,.12),transparent 40%);pointer-events:none}
.alpha .container{position:relative;z-index:2}
.alpha-badge{display:inline-block;background:rgba(74,158,255,.14);border:1px solid rgba(74,158,255,.35);padding:8px 18px;border-radius:999px;font-family:var(--ff-mono);font-size:.72rem;letter-spacing:.18em;text-transform:uppercase;color:#9cc6ff;margin-bottom:18px}
.alpha h2{color:#fff;text-transform:uppercase;font-size:clamp(1.8rem,3.2vw,2.7rem)}
.alpha h2 .grad{background:linear-gradient(135deg,#4a9eff,#ffd24a);-webkit-background-clip:text;background-clip:text;-webkit-text-fill-color:transparent}
.alpha .lead{color:rgba(255,255,255,.78);max-width:760px;margin:14px auto 0}
.alpha-grid{display:grid;grid-template-columns:1fr 1fr;gap:26px;margin-top:50px}
.alpha-card{background:rgba(255,255,255,.04);border:1px solid rgba(255,255,255,.1);border-radius:14px;padding:34px;transition:.3s ease}
.alpha-card.blue{border-color:rgba(74,158,255,.4)}
.alpha-card.gold{border-color:rgba(255,210,74,.4)}
.alpha-card:hover{transform:translateY(-6px);background:rgba(255,255,255,.07)}
.alpha-card .ac-mark{width:52px;height:52px;border-radius:12px;display:flex;align-items:center;justify-content:center;margin-bottom:16px}
.alpha-card.blue .ac-mark{background:rgba(74,158,255,.16);color:#4a9eff}
.alpha-card.gold .ac-mark{background:rgba(255,210,74,.16);color:#ffd24a}
.alpha-card .ac-mark svg{width:28px;height:28px;stroke:currentColor;stroke-width:1.8;fill:none}
.alpha-card h3{font-size:1.5rem;margin-bottom:10px}
.alpha-card.blue h3{color:#7cb6ff}
.alpha-card.gold h3{color:#ffd97a}
.alpha-card>p{color:rgba(255,255,255,.74);font-size:.98rem;margin-bottom:18px}
.alpha-list{list-style:none;display:grid;gap:10px;margin-bottom:24px}
.alpha-list li{display:flex;gap:10px;align-items:center;color:rgba(255,255,255,.8);font-size:.93rem}
.alpha-list li svg{width:16px;height:16px;stroke:#3ec97a;stroke-width:3;fill:none;flex-shrink:0}
.alpha-btn{display:block;text-align:center;padding:14px;border-radius:8px;font-family:var(--ff-head);font-weight:700;text-transform:uppercase;letter-spacing:.04em;font-size:.88rem;transition:.25s ease}
.alpha-card.blue .alpha-btn{background:#4a9eff;color:#0d1117}
.alpha-card.gold .alpha-btn{background:#ffd24a;color:#0d1117}
.alpha-card .alpha-btn:hover{transform:translateY(-2px);filter:brightness(1.08)}

/* ═══════════════ CTA FINAL ═══════════════ */
.cta-final{background:linear-gradient(120deg,var(--navy-deep),var(--steel));position:relative;overflow:hidden}
.cta-final::before{content:"";position:absolute;inset:0;background:url('images/home-hero.png') center/cover;opacity:.12;mix-blend-mode:luminosity}
.cta-final .container{position:relative;z-index:2;text-align:center;max-width:840px}
.cta-final h2{color:#fff;font-size:clamp(1.9rem,3.4vw,2.8rem);text-transform:uppercase;margin-bottom:18px}
.cta-final p{color:rgba(255,255,255,.85);font-size:1.1rem;margin-bottom:30px}
.cta-actions{display:flex;gap:16px;justify-content:center;flex-wrap:wrap}

/* ═══════════════ FOOTER ═══════════════ */
footer{background:var(--ink);color:#9aa6b6;padding:72px 0 0}
.foot-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1.3fr;gap:40px;padding-bottom:50px}
.foot-grid h4{color:#fff;font-size:.82rem;text-transform:uppercase;letter-spacing:.12em;margin-bottom:20px;font-family:var(--ff-head)}
.foot-col p{font-size:.92rem;margin-bottom:14px;line-height:1.6}
.foot-col a{color:#9aa6b6;display:block;margin-bottom:11px;font-size:.92rem;transition:color .18s,padding .18s}
.foot-col a:hover{color:#fff;padding-left:5px}
.foot-brand .brand-name{font-size:1.6rem}
.foot-brand .brand-sub{margin-bottom:16px}
.foot-social{display:flex;gap:12px;margin-top:18px}
.foot-social a{width:38px;height:38px;border:1px solid #2c3645;border-radius:6px;display:flex;align-items:center;justify-content:center;margin:0}
.foot-social a:hover{background:var(--steel);border-color:var(--steel)}
.foot-social svg{width:18px;height:18px;stroke:#9aa6b6}
.foot-social a:hover svg{stroke:#fff}
.foot-contact .fc-row{display:flex;gap:11px;margin-bottom:14px;font-size:.92rem;align-items:flex-start}
.foot-contact .fc-row svg{width:17px;height:17px;stroke:var(--steel-soft);flex-shrink:0;margin-top:3px}
.foot-bottom{border-top:1px solid #232c3a;padding:22px 0;font-size:.82rem;display:flex;justify-content:space-between;flex-wrap:wrap;gap:10px}
.foot-bottom .fb-norms{font-family:var(--ff-mono);letter-spacing:.06em;color:#6b7686}

/* ═══════════════ FLOATING ═══════════════ */
.wa-float{position:fixed;right:20px;bottom:20px;width:58px;height:58px;border-radius:50%;background:#25d366;display:flex;align-items:center;justify-content:center;box-shadow:0 12px 28px rgba(37,211,102,.4);z-index:900;transition:transform .2s}
.wa-float:hover{transform:scale(1.08)}
.wa-float svg{width:30px;height:30px;fill:#fff}
.ai-toggle{position:fixed;right:20px;bottom:90px;background:var(--navy);color:#fff;border:none;border-radius:999px;padding:13px 20px;font-family:var(--ff-head);font-weight:700;font-size:.82rem;text-transform:uppercase;letter-spacing:.04em;cursor:pointer;box-shadow:0 12px 28px rgba(31,56,100,.4);z-index:900;display:flex;align-items:center;gap:.5em;transition:transform .2s}
.ai-toggle:hover{transform:translateY(-2px);background:var(--navy-deep)}
.ai-toggle svg{width:18px;height:18px;stroke:#fff;stroke-width:2;fill:none}
.ai-panel{position:fixed;right:20px;bottom:158px;width:min(380px,calc(100vw - 32px));background:#fff;border-radius:14px;box-shadow:0 30px 70px rgba(17,24,39,.3);overflow:hidden;z-index:901;display:none;border:1px solid var(--line)}
.ai-panel.open{display:block;animation:slideUp .3s ease}
@keyframes slideUp{from{opacity:0;transform:translateY(16px)}to{opacity:1;transform:translateY(0)}}
.ai-head{background:var(--navy);color:#fff;padding:18px 20px;display:flex;justify-content:space-between;align-items:center}
.ai-head strong{font-family:var(--ff-head);font-size:1rem}
.ai-head span{display:block;font-size:.74rem;color:var(--steel-soft);font-family:var(--ff-mono)}
.ai-close{background:none;border:none;color:#fff;font-size:1.5rem;cursor:pointer;line-height:1}
.ai-body{padding:18px;background:var(--bg);display:grid;gap:12px;max-height:340px;overflow:auto}
.ai-bubble{padding:12px 15px;border-radius:14px;font-size:.92rem;line-height:1.55;max-width:88%}
.ai-bot{background:#fff;border:1px solid var(--line);color:var(--ink);border-bottom-left-radius:4px}
.ai-user{background:var(--navy);color:#fff;margin-left:auto;border-bottom-right-radius:4px}
.ai-chips{display:flex;flex-wrap:wrap;gap:8px}
.ai-chip{border:1px solid var(--line);background:#fff;color:var(--navy);padding:8px 12px;border-radius:999px;font-size:.82rem;font-weight:600;cursor:pointer;transition:.2s}
.ai-chip:hover{background:var(--navy);color:#fff;border-color:var(--navy)}
.ai-form{display:grid;grid-template-columns:1fr auto;gap:10px;padding:14px;border-top:1px solid var(--line);background:#fff}
.ai-form input{padding:12px 14px;border:1px solid var(--line);border-radius:8px;font-size:.92rem;font-family:var(--ff-body)}
.ai-form input:focus{outline:none;border-color:var(--steel)}
.ai-form button{background:var(--red);color:#fff;border:none;border-radius:8px;padding:0 18px;font-family:var(--ff-head);font-weight:700;cursor:pointer}

/* ═══════════════ REVEAL ═══════════════ */
.reveal{opacity:0;transform:translateY(28px);transition:opacity .7s ease,transform .7s ease}
.reveal.in{opacity:1;transform:none}
.reveal.d1{transition-delay:.08s}.reveal.d2{transition-delay:.16s}.reveal.d3{transition-delay:.24s}.reveal.d4{transition-delay:.32s}.reveal.d5{transition-delay:.4s}
@media(prefers-reduced-motion:reduce){.reveal{opacity:1;transform:none}.hero{background-attachment:scroll}}

/* ═══════════════ RESPONSIVE ═══════════════ */
@media(max-width:1040px){
  .sys-grid,.proj-grid{grid-template-columns:repeat(2,1fr)}
  .cert-grid{grid-template-columns:repeat(3,1fr)}
  .foot-grid{grid-template-columns:1fr 1fr}
}
@media(max-width:900px){
  .nav-links{position:fixed;inset:0 0 0 auto;width:min(82%,330px);background:var(--navy-deep);flex-direction:column;align-items:stretch;justify-content:flex-start;padding:90px 26px 30px;gap:4px;transform:translateX(100%);transition:transform .3s ease;z-index:199;box-shadow:-20px 0 50px rgba(0,0,0,.4)}
  .nav-links.open{transform:translateX(0)}
  .nav-links>a{padding:13px 10px;font-size:.95rem}
  .nav-links>a::after{display:none}
  .nav-toggle{display:flex}
  .nav-toggle.open span:nth-child(1){transform:translateY(7.5px) rotate(45deg)}
  .nav-toggle.open span:nth-child(2){opacity:0}
  .nav-toggle.open span:nth-child(3){transform:translateY(-7.5px) rotate(-45deg)}
  .why .grid2,.seismo-wrap{grid-template-columns:1fr;gap:38px}
  .alpha-grid{grid-template-columns:1fr}
  .hero{background-attachment:scroll}
}
@media(max-width:680px){
  section{padding:64px 0}
  .topbar .tb-center,.topbar .tb-item.hide-sm{display:none}
  .trust-grid{grid-template-columns:1fr 1fr}
  .trust-item+.trust-item::before{display:none}
  .trust-item:nth-child(n+3){border-top:1px solid var(--line)}
  .trust-item:nth-child(even){border-left:1px solid var(--line)}
  .sys-grid,.proj-grid,.cert-grid,.foot-grid{grid-template-columns:1fr}
  .cert-grid{grid-template-columns:1fr 1fr}
  .hero h1{font-size:2.1rem}
  .btn{width:100%;justify-content:center}
  .hero-actions,.cta-actions{width:100%}
  .foot-bottom{flex-direction:column}
  .scroll-cue{display:none}
}
/* ═══ CORRECCIONES MOBILE ═══ */

/* 1. Tablas con scroll horizontal en pantallas chicas */
.spec-table-wrap{overflow-x:auto;-webkit-overflow-scrolling:touch;border-radius:6px}

/* 2. Hero: background-attachment:fixed rompe en iOS Safari */
@media(max-width:900px){
  .hero,.prod-hero,.news-hero,.art-hero,.proj-hero{background-attachment:scroll!important}
}

/* 3. Nav dropdown: funciona en hover (desktop) y tap (mobile) */
@media(max-width:900px){
  .nav-drop-menu{
    position:static;opacity:1!important;visibility:visible!important;
    transform:none!important;box-shadow:none;border:none;
    padding:0 0 0 16px;background:transparent;min-width:auto
  }
  .nav-drop-menu a{color:#e7edf5!important;border-bottom-color:rgba(255,255,255,.1)}
  .nav-drop-menu a:hover{background:rgba(255,255,255,.08);padding-left:22px}
  .nav-drop-menu .ndm-tag{color:var(--steel-soft)}
  .nav-dropdown{width:100%}
  .nav-drop-trigger{width:100%;padding:13px 10px;font-size:.95rem;font-family:var(--ff-head);font-weight:600;letter-spacing:.04em;text-transform:uppercase;color:#e7edf5}
}

/* 4. Facebook iframe: no sobresalir del viewport */
.fb-embed iframe{max-width:100%!important;width:100%!important}

/* 5. Modales: padding ajustado y form full-width en mobile */
@media(max-width:480px){
  .modal-box{border-radius:0;max-height:100vh}
  .modal-body{padding:18px 16px 24px}
  .modal-form .form-row{grid-template-columns:1fr!important}
  .modal-grid{grid-template-columns:1fr!important}
}

/* 6. Topbar: ocultar teléfono en pantalla muy pequeña */
@media(max-width:480px){
  .topbar .tb-center{display:none}
  .topbar .container{justify-content:space-between}
}

/* 7. Cards de noticias: columna única en mobile */
@media(max-width:680px){
  .news-card{grid-template-columns:1fr!important}
  .nc-img{aspect-ratio:16/9}
  .datos-grid{grid-template-columns:1fr!important}
  .zona-grid{grid-template-columns:1fr!important}
  .proj-stats-grid{grid-template-columns:1fr 1fr!important}
}

/* 8. Texto del hero en producto: no cortar */
@media(max-width:480px){
  .prod-hero h1,.art-hero h1,.proj-hero h1,.news-hero h1{font-size:1.7rem!important}
  .prod-hero,.art-hero{padding:120px 0 80px}
}