/* =========================================================
   DIFERENCIAL VIDROS — design tokens
========================================================= */
:root{
  --bg:            #060b14;
  --bg-alt:        #091120;
  --panel:         #0d1a2c;
  --panel-2:       #0f2035;
  --line:          rgba(143,178,255,0.12);
  --accent:        #0fd7ff;
  --accent-2:      #7df3ff;
  --accent-soft:   rgba(15,215,255,0.14);
  --text:          #eaf6ff;
  --muted:         #90a8c2;
  --muted-2:       #5f7893;
  --font-display:  'Space Grotesk', sans-serif;
  --font-body:     'Inter', sans-serif;
  --radius:        16px;
  --radius-sm:     10px;
  --ease:          cubic-bezier(.16,.84,.44,1);
}

*,*::before,*::after{ box-sizing:border-box; }
html{ scroll-behavior:smooth; }
body{
  margin:0;
  background:var(--bg);
  color:var(--text);
  font-family:var(--font-body);
  line-height:1.6;
  overflow-x:hidden;
  cursor:none;
}
@media (hover:none), (pointer:coarse){ body{ cursor:auto; } }

img{ max-width:100%; display:block; }
a{ color:inherit; text-decoration:none; }
ul,ol{ list-style:none; margin:0; padding:0; }
h1,h2,h3,h4{ font-family:var(--font-display); font-weight:600; line-height:1.15; margin:0 0 .5em; }
p{ margin:0 0 1em; color:var(--muted); }
.container{ width:min(1180px, 92%); margin-inline:auto; }
.text-accent{ color:var(--accent); }

::selection{ background:var(--accent); color:#00131a; }

/* focus visibility */
a:focus-visible, button:focus-visible, input:focus-visible, textarea:focus-visible, select:focus-visible{
  outline:2px solid var(--accent); outline-offset:3px; border-radius:4px;
}

@media (prefers-reduced-motion: reduce){
  *{ animation-duration:.001ms !important; animation-iteration-count:1 !important; transition-duration:.001ms !important; scroll-behavior:auto !important; }
}

/* =========================================================
   CURSOR
========================================================= */
.cursor-dot, .cursor-ring{
  position:fixed; top:0; left:0; pointer-events:none; z-index:9999;
  border-radius:50%; transform:translate(-50%,-50%);
}
.cursor-dot{
  width:8px; height:8px; background:var(--accent);
  box-shadow:0 0 12px 2px var(--accent);
}
.cursor-ring{
  width:34px; height:34px; border:1px solid var(--accent);
  box-shadow:0 0 20px 4px var(--accent-soft);
  transition:width .2s var(--ease), height .2s var(--ease), opacity .2s var(--ease), background .2s var(--ease);
}
.cursor-ring.is-active{
  width:54px; height:54px; background:var(--accent-soft);
}
@media (hover:none), (pointer:coarse){ .cursor-dot, .cursor-ring{ display:none; } }

/* =========================================================
   PRELOADER
========================================================= */
#dv-preloader{
  position:fixed; inset:0; z-index:10000; background:var(--bg);
  display:flex; align-items:center; justify-content:center;
  transition:opacity .6s var(--ease), visibility .6s var(--ease);
}
#dv-preloader.is-hidden{ opacity:0; visibility:hidden; }
.preloader-inner{ text-align:center; }
.preloader-logo{ display:flex; flex-direction:column; align-items:center; gap:14px; margin-bottom:22px; }
.logo-pane{ width:46px; height:46px; fill:none; stroke:var(--accent); stroke-width:3; filter:drop-shadow(0 0 10px var(--accent)); animation:spinPane 2.2s linear infinite; }
@keyframes spinPane{ to{ transform:rotate(360deg); } }
.preloader-logo span{ font-family:var(--font-display); letter-spacing:.14em; font-size:.85rem; color:var(--muted); text-transform:uppercase; }
.preloader-logo em{ color:var(--accent); font-style:normal; }
.preloader-bar{ width:180px; height:2px; background:var(--line); border-radius:2px; overflow:hidden; }
.preloader-bar span{ display:block; height:100%; width:0%; background:linear-gradient(90deg,var(--accent),var(--accent-2)); box-shadow:0 0 10px var(--accent); }

/* =========================================================
   HEADER
========================================================= */
.site-header{
  position:fixed; top:0; left:0; right:0; z-index:900;
  padding:20px 0; transition:background .35s var(--ease), padding .35s var(--ease), border-color .35s var(--ease);
  border-bottom:1px solid transparent;
}
.site-header.is-scrolled{
  background:rgba(6,11,20,.85); backdrop-filter:blur(14px);
  padding:12px 0; border-color:var(--line);
}
.header-inner{ display:flex; align-items:center; justify-content:space-between; gap:24px; }
.brand{ display:flex; align-items:center; gap:10px; font-family:var(--font-display); font-size:1.05rem; letter-spacing:.02em; }
.brand-mark{ width:26px; height:26px; fill:none; stroke:var(--accent); stroke-width:4; filter:drop-shadow(0 0 6px var(--accent)); }
.brand em{ color:var(--accent); font-style:normal; }
.main-nav{ display:flex; gap:28px; }
.main-nav a{ font-size:.92rem; color:var(--muted); position:relative; padding:4px 0; transition:color .25s; }
.main-nav a::after{ content:''; position:absolute; left:0; bottom:-2px; width:0; height:1px; background:var(--accent); transition:width .3s var(--ease); }
.main-nav a:hover{ color:var(--text); }
.main-nav a:hover::after{ width:100%; }
.header-actions{ display:flex; align-items:center; gap:14px; }

.btn{
  display:inline-flex; align-items:center; justify-content:center; gap:8px;
  padding:11px 22px; border-radius:999px; font-size:.9rem; font-weight:600;
  font-family:var(--font-body); border:1px solid transparent; cursor:pointer;
  transition:transform .25s var(--ease), box-shadow .25s var(--ease), background .25s var(--ease), border-color .25s var(--ease);
  white-space:nowrap;
}
.btn-primary{ background:linear-gradient(120deg,var(--accent),#5be0ff); color:#001820; box-shadow:0 0 0 0 rgba(15,215,255,.5); }
.btn-primary:hover{ transform:translateY(-2px); box-shadow:0 8px 26px -6px var(--accent); }
.btn-outline{ border-color:var(--line); color:var(--text); }
.btn-outline:hover{ border-color:var(--accent); color:var(--accent); }
.btn-ghost-wa{ color:var(--muted); font-size:.88rem; }
.btn-ghost-wa:hover{ color:var(--accent); }
.btn-lg{ padding:14px 28px; font-size:.95rem; }
.btn-block{ width:100%; }

.nav-toggle{ display:none; flex-direction:column; gap:5px; background:none; border:0; cursor:pointer; padding:6px; }
.nav-toggle span{ width:22px; height:2px; background:var(--text); transition:transform .3s, opacity .3s; }

/* =========================================================
   HERO
========================================================= */
.hero{ position:relative; padding:170px 0 110px; overflow:hidden; }
.hero-glow{
  position:absolute; top:-20%; right:-10%; width:60vw; height:60vw; max-width:900px; max-height:900px;
  background:radial-gradient(circle, rgba(15,215,255,.22), transparent 65%);
  filter:blur(10px); pointer-events:none;
}
.hero-inner{ display:grid; grid-template-columns:1.05fr .95fr; gap:60px; align-items:center; position:relative; }
.eyebrow{
  display:inline-block; font-family:var(--font-display); font-size:.78rem; letter-spacing:.16em;
  text-transform:uppercase; color:var(--accent); border:1px solid var(--accent-soft);
  padding:6px 14px; border-radius:999px; background:var(--accent-soft); margin-bottom:20px;
}
.hero h1{ font-size:clamp(2.3rem, 4.6vw, 3.6rem); margin-bottom:22px; }
.hero-sub{ font-size:1.05rem; max-width:46ch; }
.hero-cta{ display:flex; gap:16px; margin:28px 0 40px; flex-wrap:wrap; }
.hero-stats{ display:flex; gap:36px; flex-wrap:wrap; }
.hero-stats li{ display:flex; flex-direction:column; }
.hero-stats strong{ font-family:var(--font-display); font-size:1.5rem; color:var(--accent); }
.hero-stats span{ font-size:.82rem; color:var(--muted-2); }

.hero-visual{ position:relative; height:460px; display:flex; align-items:center; justify-content:center; }
.glass-stack{ position:relative; width:320px; height:320px; }
.pane{
  position:absolute; inset:0; border-radius:22px;
  border:1px solid rgba(15,215,255,.35);
  background:linear-gradient(155deg, rgba(15,215,255,.14), rgba(15,215,255,.02));
  backdrop-filter:blur(6px);
  box-shadow:0 20px 60px -20px rgba(15,215,255,.35), inset 0 0 40px rgba(15,215,255,.08);
}
.pane-1{ transform:rotate(-8deg) translate(-30px, 10px); animation:float1 7s ease-in-out infinite; }
.pane-2{ transform:rotate(6deg) translate(20px, -20px); animation:float2 8s ease-in-out infinite; }
.pane-3{ transform:rotate(-2deg) translate(0,0) scale(.9); animation:float3 6s ease-in-out infinite; }
@keyframes float1{ 0%,100%{ transform:rotate(-8deg) translate(-30px,10px);} 50%{ transform:rotate(-11deg) translate(-34px,-6px);} }
@keyframes float2{ 0%,100%{ transform:rotate(6deg) translate(20px,-20px);} 50%{ transform:rotate(9deg) translate(26px,-4px);} }
@keyframes float3{ 0%,100%{ transform:rotate(-2deg) scale(.9);} 50%{ transform:rotate(1deg) scale(.94);} }
.beam{
  position:absolute; top:10%; left:50%; width:2px; height:80%;
  background:linear-gradient(var(--accent), transparent);
  filter:blur(1px); opacity:.7; animation:beamMove 4s ease-in-out infinite;
}
@keyframes beamMove{ 0%,100%{ transform:translateX(-60px) scaleY(.8);} 50%{ transform:translateX(60px) scaleY(1);} }

.floating-card{
  position:absolute; display:flex; align-items:center; gap:10px;
  background:rgba(9,17,32,.85); border:1px solid var(--line); backdrop-filter:blur(10px);
  padding:10px 16px; border-radius:12px; font-size:.82rem; color:var(--text);
  box-shadow:0 12px 30px -12px rgba(0,0,0,.6);
  animation:cardFloat 5s ease-in-out infinite;
}
.floating-card .dot{ width:7px; height:7px; border-radius:50%; background:var(--accent); box-shadow:0 0 8px var(--accent); }
.card-a{ top:8%; left:-4%; animation-delay:.2s; }
.card-b{ bottom:10%; right:-6%; animation-delay:1s; }
@keyframes cardFloat{ 0%,100%{ transform:translateY(0);} 50%{ transform:translateY(-10px);} }

.scroll-cue{ position:absolute; bottom:26px; left:50%; transform:translateX(-50%); }
.scroll-cue span{ display:block; width:1px; height:40px; background:linear-gradient(var(--accent), transparent); animation:scrollCue 1.8s ease-in-out infinite; }
@keyframes scrollCue{ 0%{ opacity:0; transform:translateY(-6px);} 40%{ opacity:1;} 100%{ opacity:0; transform:translateY(20px);} }

/* =========================================================
   REVEAL ON SCROLL
========================================================= */
[data-reveal]{ opacity:0; transform:translateY(34px); transition:opacity .8s var(--ease), transform .8s var(--ease); }
[data-reveal].is-visible{ opacity:1; transform:translateY(0); }
[data-reveal-child]{ opacity:0; transform:translateY(24px); transition:opacity .6s var(--ease), transform .6s var(--ease); }
[data-reveal-child].is-visible{ opacity:1; transform:translateY(0); }

/* =========================================================
   STRIP
========================================================= */
.strip{ border-top:1px solid var(--line); border-bottom:1px solid var(--line); background:var(--bg-alt); }
.strip-inner{ display:flex; flex-wrap:wrap; gap:20px 40px; justify-content:space-between; padding:22px 0; }
.strip-item{ display:flex; align-items:center; gap:10px; font-size:.88rem; color:var(--muted); }
.strip-item .ico{ color:var(--accent); font-size:.7rem; }

/* =========================================================
   ABOUT
========================================================= */
.about{ padding:120px 0; }
.about-inner{ display:grid; grid-template-columns:.85fr 1.15fr; gap:70px; align-items:center; }
.about-frame{ position:relative; aspect-ratio:1/1; border-radius:24px; border:1px solid var(--line); background:var(--panel); overflow:hidden; }
.about-shape{
  position:absolute; inset:12%; border-radius:20px;
  background:conic-gradient(from 120deg, rgba(15,215,255,.35), rgba(15,215,255,0) 40%, rgba(15,215,255,.25));
  animation:rotateShape 12s linear infinite;
  filter:blur(0.3px);
}
.about-shape::after{
  content:''; position:absolute; inset:18%; border-radius:16px;
  background:var(--bg); border:1px solid rgba(15,215,255,.25);
}
@keyframes rotateShape{ to{ transform:rotate(360deg); } }
.about-copy h2{ font-size:clamp(1.7rem, 3vw, 2.3rem); }
.about-grid{ display:grid; grid-template-columns:repeat(3,1fr); gap:24px; margin-top:30px; }
.about-grid h3{ font-size:1rem; color:var(--accent); margin-bottom:6px; }
.about-grid p{ font-size:.86rem; margin:0; }

/* =========================================================
   SERVICES
========================================================= */
.services{ padding:110px 0 120px; background:var(--bg-alt); border-top:1px solid var(--line); border-bottom:1px solid var(--line); }
.section-head{ max-width:640px; margin:0 auto 56px; text-align:center; }
.section-head h2{ font-size:clamp(1.8rem, 3.4vw, 2.5rem); }
.section-sub{ font-size:.98rem; }
.services-grid{ display:grid; grid-template-columns:repeat(3, 1fr); gap:22px; }
.service-card{
  padding:30px 26px; border-radius:var(--radius); border:1px solid var(--line);
  background:linear-gradient(160deg, var(--panel), var(--bg-alt));
  transition:transform .35s var(--ease), border-color .35s var(--ease), box-shadow .35s var(--ease);
  position:relative; overflow:hidden;
}
.service-card::before{
  content:''; position:absolute; inset:0; opacity:0; background:radial-gradient(240px circle at var(--mx,50%) var(--my,0%), rgba(15,215,255,.16), transparent 70%);
  transition:opacity .35s;
}
.service-card:hover::before{ opacity:1; }
.service-card:hover{ transform:translateY(-6px); border-color:rgba(15,215,255,.4); box-shadow:0 24px 50px -20px rgba(15,215,255,.25); }
.service-icon{ width:44px; height:44px; margin-bottom:18px; color:var(--accent); }
.service-icon svg{ width:100%; height:100%; stroke:var(--accent); fill:none; stroke-width:1.6; filter:drop-shadow(0 0 6px rgba(15,215,255,.5)); }
.service-card h3{ font-size:1.08rem; margin-bottom:8px; }
.service-card p{ font-size:.88rem; margin:0; }

/* =========================================================
   PROCESS
========================================================= */
.process{ padding:120px 0; }
.process-grid{ display:grid; grid-template-columns:repeat(4,1fr); gap:26px; counter-reset:step; }
.process-grid li{ padding:28px 22px; border-left:1px solid var(--line); }
.process-grid .step{ display:block; font-family:var(--font-display); font-size:1.6rem; color:var(--accent); opacity:.7; margin-bottom:14px; }
.process-grid h3{ font-size:1.02rem; margin-bottom:8px; }
.process-grid p{ font-size:.86rem; margin:0; }

/* =========================================================
   TESTIMONIALS
========================================================= */
.testimonials{ padding:110px 0; background:var(--bg-alt); border-top:1px solid var(--line); border-bottom:1px solid var(--line); }
.testimonial-track{ display:grid; grid-template-columns:repeat(3,1fr); gap:22px; }
.testimonial-card{
  padding:30px; border-radius:var(--radius); border:1px solid var(--line); background:var(--panel);
}
.t-stars{ color:var(--accent); font-size:.85rem; letter-spacing:2px; margin-bottom:14px; }
.testimonial-card p{ font-size:.92rem; color:var(--text); opacity:.9; }
.t-author{ display:flex; align-items:center; gap:12px; margin-top:18px; }
.t-avatar{ width:38px; height:38px; border-radius:50%; background:linear-gradient(140deg,var(--accent),#0a3a4a); display:flex; align-items:center; justify-content:center; font-family:var(--font-display); font-size:.85rem; color:#00131a; }
.t-author strong{ display:block; font-size:.88rem; }
.t-author span{ font-size:.76rem; color:var(--muted-2); }
.testimonial-dots{ display:none; }

/* =========================================================
   CTA BAND
========================================================= */
.cta-band{
  margin:110px 0; padding:70px 0; text-align:center;
  background:linear-gradient(120deg, rgba(15,215,255,.14), rgba(15,215,255,.02));
  border-top:1px solid var(--line); border-bottom:1px solid var(--line);
}
.cta-inner h2{ font-size:clamp(1.7rem,3vw,2.3rem); }
.cta-inner p{ max-width:44ch; margin:0 auto 26px; }

/* =========================================================
   CONTACT
========================================================= */
.contact{ padding:0 0 130px; }
.contact-inner{ display:grid; grid-template-columns:.9fr 1.1fr; gap:60px; }
.contact-list{ margin:30px 0; display:flex; flex-direction:column; gap:18px; }
.contact-list strong{ display:block; font-size:.78rem; text-transform:uppercase; letter-spacing:.08em; color:var(--muted-2); margin-bottom:4px; }
.contact-list a, .contact-list span{ font-size:1rem; color:var(--text); }
.contact-list a:hover{ color:var(--accent); }
.social-row{ display:flex; gap:16px; }
.social-row a{ font-size:.85rem; color:var(--muted); border:1px solid var(--line); padding:8px 16px; border-radius:999px; }
.social-row a:hover{ color:var(--accent); border-color:var(--accent); }

.contact-form{ background:var(--panel); border:1px solid var(--line); border-radius:var(--radius); padding:36px; }
.form-row{ margin-bottom:18px; }
.form-row-split{ display:grid; grid-template-columns:1fr 1fr; gap:16px; }
.form-row label{ display:block; font-size:.8rem; color:var(--muted); margin-bottom:8px; }
.contact-form input, .contact-form select, .contact-form textarea{
  width:100%; background:var(--bg-alt); border:1px solid var(--line); color:var(--text);
  padding:12px 14px; border-radius:var(--radius-sm); font-family:var(--font-body); font-size:.92rem;
  transition:border-color .25s;
}
.contact-form input:focus, .contact-form select:focus, .contact-form textarea:focus{
  border-color:var(--accent); outline:none;
}
.contact-form textarea{ resize:vertical; }
.form-note{ font-size:.76rem; color:var(--muted-2); text-align:center; margin:14px 0 0; }

/* =========================================================
   FOOTER
========================================================= */
.site-footer{ background:var(--bg-alt); border-top:1px solid var(--line); padding:80px 0 0; }
.footer-inner{ display:grid; grid-template-columns:1.4fr 1fr 1fr 1fr; gap:40px; padding-bottom:50px; }
.footer-brand p{ font-size:.86rem; max-width:32ch; margin-top:14px; }
.footer-col h3{ font-size:.8rem; text-transform:uppercase; letter-spacing:.08em; color:var(--muted-2); margin-bottom:16px; }
.footer-col a, .footer-col span{ display:block; font-size:.88rem; color:var(--muted); margin-bottom:10px; }
.footer-col a:hover{ color:var(--accent); }
.footer-bottom{ border-top:1px solid var(--line); padding:22px 0; font-size:.78rem; color:var(--muted-2); text-align:center; }

/* =========================================================
   WHATSAPP FLOAT
========================================================= */
.wa-float{
  position:fixed; right:24px; bottom:24px; z-index:800; width:56px; height:56px; border-radius:50%;
  background:#1fce5b; display:flex; align-items:center; justify-content:center;
  box-shadow:0 10px 30px -8px rgba(31,206,91,.6); animation:waPulse 2.6s ease-in-out infinite;
}
.wa-float svg{ width:28px; height:28px; fill:#04220f; }
@keyframes waPulse{ 0%,100%{ box-shadow:0 10px 30px -8px rgba(31,206,91,.6);} 50%{ box-shadow:0 10px 40px -4px rgba(31,206,91,.9);} }

/* =========================================================
   RESPONSIVE
========================================================= */
@media (max-width: 980px){
  .hero-inner, .about-inner, .contact-inner{ grid-template-columns:1fr; }
  .hero-visual{ height:320px; order:-1; }
  .services-grid{ grid-template-columns:repeat(2,1fr); }
  .process-grid{ grid-template-columns:repeat(2,1fr); }
  .testimonial-track{ grid-template-columns:1fr; }
  .footer-inner{ grid-template-columns:1fr 1fr; }
}
@media (max-width: 760px){
  body{ cursor:auto; }
  .cursor-dot,.cursor-ring{ display:none; }
  .main-nav{
    position:fixed; inset:0 0 0 30%; top:0; height:100vh; background:rgba(6,11,20,.98); backdrop-filter:blur(16px);
    flex-direction:column; justify-content:center; align-items:flex-start; gap:26px; padding:40px;
    transform:translateX(100%); transition:transform .4s var(--ease); border-left:1px solid var(--line);
  }
  .main-nav.is-open{ transform:translateX(0); }
  .main-nav a{ font-size:1.2rem; }
  .header-actions .btn-ghost-wa{ display:none; }
  .nav-toggle{ display:flex; }
  .nav-toggle.is-open span:nth-child(1){ transform:translateY(7px) rotate(45deg); }
  .nav-toggle.is-open span:nth-child(2){ opacity:0; }
  .nav-toggle.is-open span:nth-child(3){ transform:translateY(-7px) rotate(-45deg); }
  .hero{ padding:140px 0 80px; }
  .services-grid, .process-grid{ grid-template-columns:1fr; }
  .about-grid{ grid-template-columns:1fr; }
  .form-row-split{ grid-template-columns:1fr; }
  .footer-inner{ grid-template-columns:1fr; }
}