/* ============================================================
   BRT Vinç & Platform — premium theme
   ============================================================ */
:root{
  --navy-900:#070c1f;
  --navy-850:#0a1230;
  --navy-800:#0d1738;
  --navy-700:#132049;
  --navy-600:#1b2c63;
  --line:rgba(255,255,255,.09);
  --line-strong:rgba(255,255,255,.16);

  --blue-400:#5b8cff;
  --blue-500:#2f5fe6;   /* brand royal blue */
  --blue-600:#2246c4;
  --amber-400:#ffc24b;
  --amber-500:#ffad1f;  /* construction accent */

  --text:#eef2ff;
  --muted:#9fabce;
  --muted-2:#7784a8;

  --radius:18px;
  --radius-sm:12px;
  --shadow:0 24px 60px -24px rgba(0,0,0,.65);
  --shadow-soft:0 18px 40px -22px rgba(0,0,0,.6);
  --maxw:1200px;
  --ease:cubic-bezier(.22,.61,.36,1);

  --grad: linear-gradient(100deg,#5b8cff 0%,#9db8ff 45%,#ffc24b 115%);
}

*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{
  font-family:"Inter",system-ui,-apple-system,Segoe UI,Roboto,sans-serif;
  background:var(--navy-900);
  color:var(--text);
  line-height:1.65;
  overflow-x:hidden;
  -webkit-font-smoothing:antialiased;
}
img{display:block;max-width:100%;height:auto}
a{color:inherit;text-decoration:none}
h1,h2,h3,h4{font-family:"Sora",sans-serif;line-height:1.12;font-weight:700;letter-spacing:-.02em}
section{position:relative}
.container{width:100%;max-width:var(--maxw);margin:0 auto;padding:0 24px}

/* background texture */
body::before{
  content:"";position:fixed;inset:0;z-index:-2;pointer-events:none;
  background:
    radial-gradient(900px 500px at 80% -5%,rgba(47,95,230,.22),transparent 60%),
    radial-gradient(700px 500px at 5% 15%,rgba(255,173,31,.08),transparent 55%),
    var(--navy-900);
}

.grad-text{
  background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent;
}

/* ---------- Scroll progress ---------- */
.scroll-progress{
  position:fixed;top:0;left:0;height:3px;width:0;z-index:1200;
  background:var(--grad);box-shadow:0 0 12px rgba(91,140,255,.6);
}

/* ---------- Buttons ---------- */
.btn{
  --pad:.78em 1.5em;
  display:inline-flex;align-items:center;justify-content:center;gap:.55em;
  padding:var(--pad);border-radius:999px;font-weight:600;font-size:.95rem;
  font-family:"Sora",sans-serif;letter-spacing:.01em;cursor:pointer;border:1px solid transparent;
  transition:transform .3s var(--ease),box-shadow .3s var(--ease),background .3s,color .3s,border-color .3s;
  white-space:nowrap;
}
.btn svg{flex:none;fill:currentColor}
.btn-lg{--pad:1em 1.9em;font-size:1rem}
.btn-block{width:100%}
.btn-primary{
  background:linear-gradient(120deg,var(--blue-500),var(--blue-400));
  color:#fff;box-shadow:0 14px 30px -12px rgba(47,95,230,.75);
}
.btn-primary:hover{transform:translateY(-3px);box-shadow:0 22px 44px -14px rgba(47,95,230,.85)}
.btn-outline{background:rgba(255,255,255,.04);border-color:var(--line-strong);color:var(--text);backdrop-filter:blur(6px)}
.btn-outline:hover{border-color:var(--blue-400);color:#fff;transform:translateY(-3px);background:rgba(91,140,255,.12)}
.btn-ghost{background:transparent;color:var(--text);border-color:transparent;padding:.5em .6em}
.btn-ghost:hover{color:var(--blue-400)}
.btn-phone{font-weight:600;font-size:.9rem}

/* ---------- Header ---------- */
.site-header{
  position:fixed;top:0;left:0;right:0;z-index:1000;
  transition:background .4s,backdrop-filter .4s,box-shadow .4s,padding .4s;
  padding:14px 0;
}
.site-header.scrolled{
  background:rgba(8,13,33,.82);backdrop-filter:blur(16px);
  box-shadow:0 10px 30px -18px rgba(0,0,0,.8);border-bottom:1px solid var(--line);padding:8px 0;
}
.nav-inner{display:flex;align-items:center;justify-content:space-between;gap:20px}

.brand{display:inline-flex;align-items:center;transition:transform .3s var(--ease)}
.brand:hover{transform:translateY(-1px)}
.brand-logo{height:38px;width:auto;display:block;transition:height .4s var(--ease)}
.site-header.scrolled .brand-logo{height:32px}
.brand-logo-footer{height:34px}

.nav-links{display:flex;gap:30px}
.nav-links a{font-size:.92rem;font-weight:500;color:var(--muted);position:relative;padding:4px 0;transition:color .3s}
.nav-links a::after{content:"";position:absolute;left:0;bottom:-2px;height:2px;width:0;background:var(--grad);transition:width .35s var(--ease)}
.nav-links a:hover,.nav-links a.active{color:#fff}
.nav-links a:hover::after,.nav-links a.active::after{width:100%}

.nav-cta{display:flex;align-items:center;gap:10px}
.nav-toggle{display:none;flex-direction:column;gap:5px;background:none;border:0;cursor:pointer;padding:8px}
.nav-toggle span{width:24px;height:2px;background:#fff;border-radius:2px;transition:.3s}
.nav-toggle.open span:nth-child(1){transform:translateY(7px) rotate(45deg)}
.nav-toggle.open span:nth-child(2){opacity:0}
.nav-toggle.open span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}

/* ---------- Hero ---------- */
.hero{min-height:100svh;display:flex;align-items:center;position:relative;overflow:hidden;padding:120px 0 60px}
.hero-bg{position:absolute;inset:0;z-index:-1}
.hero-bg img{width:100%;height:100%;object-fit:cover;transform:scale(1.08);animation:heroZoom 18s ease-out forwards}
@keyframes heroZoom{to{transform:scale(1)}}
.hero-overlay{position:absolute;inset:0;
  background:
    linear-gradient(100deg,rgba(7,12,31,.96) 0%,rgba(7,12,31,.82) 42%,rgba(7,12,31,.5) 75%,rgba(7,12,31,.3) 100%),
    linear-gradient(to top,var(--navy-900) 2%,transparent 40%);
}
.hero-content{position:relative;max-width:760px}
.eyebrow{display:inline-block;font-family:"Sora",sans-serif;font-size:.78rem;font-weight:600;letter-spacing:.32em;
  color:var(--amber-400);padding:8px 16px;border:1px solid rgba(255,194,75,.3);border-radius:999px;
  background:rgba(255,194,75,.07);margin-bottom:26px}
.hero h1{font-size:clamp(2.5rem,6.2vw,4.6rem);font-weight:800;margin-bottom:22px}
.hero-lead{font-size:clamp(1.02rem,1.6vw,1.22rem);color:var(--muted);max-width:620px;margin-bottom:34px}
.hero-actions{display:flex;gap:14px;flex-wrap:wrap;margin-bottom:54px}

.hero-stats{display:flex;gap:42px;flex-wrap:wrap}
.hstat{display:flex;flex-direction:column}
.hstat strong{font-family:"Sora",sans-serif;font-size:2.3rem;font-weight:800;color:#fff;line-height:1}
.hstat span{font-size:.82rem;color:var(--muted-2);margin-top:6px;max-width:150px}

.scroll-hint{position:absolute;bottom:26px;left:50%;transform:translateX(-50%);width:26px;height:42px;
  border:2px solid var(--line-strong);border-radius:16px;display:grid;place-items:start center;padding-top:7px}
.scroll-hint span{width:4px;height:9px;border-radius:3px;background:var(--blue-400);animation:scrollDot 1.6s infinite}
@keyframes scrollDot{0%{transform:translateY(0);opacity:1}70%{transform:translateY(12px);opacity:0}100%{opacity:0}}

/* ---------- Feature strip ---------- */
.feature-strip{margin-top:-1px;padding:48px 0;border-top:1px solid var(--line);
  background:linear-gradient(180deg,rgba(19,32,73,.5),transparent)}
.feature-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:22px}
.feature{padding:28px 24px;border-radius:var(--radius);background:rgba(255,255,255,.028);
  border:1px solid var(--line);transition:transform .4s var(--ease),border-color .4s,background .4s}
.feature:hover{transform:translateY(-6px);border-color:var(--line-strong);background:rgba(255,255,255,.05)}
.feature-ic{display:grid;place-items:center;width:52px;height:52px;border-radius:14px;margin-bottom:18px;
  background:linear-gradient(145deg,rgba(47,95,230,.3),rgba(47,95,230,.08));border:1px solid rgba(91,140,255,.3)}
.feature-ic svg{width:26px;height:26px;fill:none;stroke:var(--blue-400);stroke-width:1.7;
  stroke-linecap:round;stroke-linejoin:round}
.feature-ic svg .chk{stroke:var(--amber-400);stroke-width:2}
.feature h3{font-size:1.1rem;margin-bottom:9px}
.feature p{font-size:.9rem;color:var(--muted)}

/* ---------- Section base ---------- */
.section{padding:clamp(54px,6.5vw,92px) 0}
.section-head{max-width:720px;margin:0 auto 44px;text-align:center}
.kicker{display:inline-block;font-family:"Sora",sans-serif;font-size:.75rem;font-weight:600;letter-spacing:.3em;
  color:var(--blue-400);margin-bottom:16px}
.section h2{font-size:clamp(1.9rem,4vw,3rem);margin-bottom:18px}
.section-sub{color:var(--muted);font-size:1.02rem}

/* ---------- Services ---------- */
.service-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.service-card{border-radius:var(--radius);overflow:hidden;background:rgba(255,255,255,.028);
  border:1px solid var(--line);transition:transform .45s var(--ease),border-color .45s,box-shadow .45s}
.service-card:hover{transform:translateY(-8px);border-color:var(--line-strong);box-shadow:var(--shadow)}
.sc-img{position:relative;aspect-ratio:16/10;overflow:hidden}
.sc-img::after{content:"";position:absolute;inset:0;background:linear-gradient(to top,rgba(13,23,56,.9),transparent 55%)}
.sc-img img{width:100%;height:100%;object-fit:cover;transition:transform .7s var(--ease)}
.service-card:hover .sc-img img{transform:scale(1.08)}
.sc-body{padding:22px 24px 26px}
.sc-body h3{font-size:1.22rem;margin-bottom:10px}
.sc-body h3::before{content:"";display:inline-block;width:24px;height:3px;border-radius:3px;background:var(--grad);
  vertical-align:middle;margin-right:10px;margin-bottom:4px}
.sc-body p{font-size:.92rem;color:var(--muted)}

/* ---------- Why ---------- */
.why-grid{display:grid;grid-template-columns:1fr 1fr;gap:60px;align-items:center}
.why-media{position:relative;border-radius:var(--radius);overflow:hidden;box-shadow:var(--shadow)}
.why-media img{width:100%;height:100%;object-fit:cover;min-height:440px}
.why-badge{position:absolute;right:20px;bottom:20px;background:rgba(8,13,33,.78);backdrop-filter:blur(10px);
  border:1px solid var(--line-strong);border-radius:16px;padding:18px 22px;display:flex;flex-direction:column}
.why-badge strong{font-family:"Sora",sans-serif;font-size:2rem;font-weight:800;color:var(--amber-400);line-height:1}
.why-badge span{font-size:.78rem;color:var(--muted);margin-top:6px}
.why-content h2{margin-bottom:18px}
.why-content>p{color:var(--muted);margin-bottom:26px}
.why-list{list-style:none;display:grid;grid-template-columns:1fr 1fr;gap:14px 24px;margin-bottom:32px}
.why-list li{display:flex;align-items:flex-start;gap:11px;font-size:.95rem;font-weight:500}
.tick{flex:none;width:22px;height:22px;border-radius:7px;margin-top:2px;position:relative;
  background:linear-gradient(145deg,rgba(47,95,230,.4),rgba(47,95,230,.12));border:1px solid rgba(91,140,255,.4)}
.tick::after{content:"";position:absolute;left:7px;top:3px;width:5px;height:10px;border:solid var(--blue-400);
  border-width:0 2px 2px 0;transform:rotate(45deg)}

/* ---------- Gallery ---------- */
.gallery-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:16px}
.g-item{position:relative;border-radius:var(--radius-sm);overflow:hidden;aspect-ratio:4/3}
.g-item img{width:100%;height:100%;object-fit:cover;transition:transform .7s var(--ease)}
.g-item::after{content:"";position:absolute;inset:0;background:linear-gradient(to top,rgba(7,12,31,.85),transparent 50%);
  opacity:.55;transition:opacity .4s}
.g-item figcaption{position:absolute;left:16px;bottom:14px;z-index:2;font-family:"Sora",sans-serif;font-weight:600;
  font-size:.95rem;color:#fff;transform:translateY(8px);opacity:0;transition:.4s var(--ease)}
.g-item:hover img{transform:scale(1.1)}
.g-item:hover::after{opacity:.8}
.g-item:hover figcaption{transform:translateY(0);opacity:1}

/* ---------- About ---------- */
.about-grid{display:grid;grid-template-columns:.85fr 1.15fr;gap:56px;align-items:center}
.about-card{background:linear-gradient(145deg,rgba(47,95,230,.22),rgba(255,255,255,.03));border-radius:var(--radius);
  padding:48px 40px;display:grid;place-items:center;box-shadow:var(--shadow);border:1px solid var(--line-strong)}
.about-card img{max-width:340px;width:100%}
.about-content h2{margin-bottom:20px}
.about-content p{color:var(--muted);margin-bottom:16px}
.about-quote{font-family:"Sora",sans-serif;font-size:1.2rem;font-style:italic;color:#fff;font-weight:500;
  border-left:3px solid var(--blue-500);padding-left:20px;margin-top:24px!important}

/* ---------- Contact ---------- */
.contact{background:linear-gradient(180deg,transparent,rgba(19,32,73,.35))}
.contact-grid{display:grid;grid-template-columns:1fr 1fr;gap:56px;align-items:start}
.contact-info>p{color:var(--muted);margin:16px 0 30px;max-width:460px}
.contact-items{display:flex;flex-direction:column;gap:14px}
.contact-item{display:flex;align-items:center;gap:16px;padding:16px 18px;border-radius:var(--radius-sm);
  background:rgba(255,255,255,.028);border:1px solid var(--line);transition:transform .3s,border-color .3s,background .3s}
.contact-item:not(.static):hover{transform:translateX(6px);border-color:var(--line-strong);background:rgba(255,255,255,.05)}
.ci-ic{display:grid;place-items:center;width:46px;height:46px;border-radius:12px;flex:none;color:var(--blue-400);
  background:linear-gradient(145deg,rgba(47,95,230,.3),rgba(47,95,230,.08));border:1px solid rgba(91,140,255,.3)}
.ci-ic svg{width:22px;height:22px;fill:currentColor}
.contact-item span:not(.ci-ic){display:flex;flex-direction:column;font-family:"Sora",sans-serif;font-weight:600;font-size:1.05rem}
.contact-item small{font-family:"Inter",sans-serif;font-weight:500;font-size:.75rem;color:var(--muted-2);margin-bottom:2px;letter-spacing:.02em}

/* form */
.contact-form{background:rgba(255,255,255,.03);border:1px solid var(--line);border-radius:var(--radius);
  padding:34px 32px;box-shadow:var(--shadow-soft)}
.contact-form h3{font-size:1.35rem;margin-bottom:24px}
.field{position:relative;margin-bottom:18px}
.field input,.field textarea{width:100%;background:rgba(255,255,255,.04);border:1px solid var(--line-strong);
  border-radius:var(--radius-sm);padding:16px 16px 6px;color:#fff;font-family:inherit;font-size:.95rem;
  transition:border-color .3s,background .3s;resize:vertical}
.field textarea{padding-top:20px}
.field label{position:absolute;left:16px;top:14px;color:var(--muted-2);font-size:.95rem;pointer-events:none;
  transition:.25s var(--ease)}
.field input:focus,.field textarea:focus{outline:none;border-color:var(--blue-400);background:rgba(91,140,255,.06)}
.field input:focus+label,.field input:not(:placeholder-shown)+label,
.field textarea:focus+label,.field textarea:not(:placeholder-shown)+label{
  top:6px;font-size:.68rem;color:var(--blue-400);letter-spacing:.04em}
.form-note{font-size:.76rem;color:var(--muted-2);text-align:center;margin-top:14px}

/* ---------- Footer ---------- */
.site-footer{border-top:1px solid var(--line);background:var(--navy-850);padding-top:64px}
.footer-top{display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr;gap:40px;padding-bottom:48px}
.footer-brand p{color:var(--muted);font-size:.9rem;margin-top:18px;max-width:320px}
.footer-col h4{font-size:1rem;margin-bottom:18px}
.footer-col a,.footer-col span{display:block;color:var(--muted);font-size:.9rem;margin-bottom:11px;transition:color .3s}
.footer-col a:hover{color:var(--blue-400)}
.f-muted{color:var(--muted-2)!important}
.footer-bottom{display:flex;justify-content:space-between;align-items:center;flex-wrap:wrap;gap:10px;
  padding:22px 24px;border-top:1px solid var(--line);font-size:.84rem;color:var(--muted)}

/* ---------- Floating buttons ---------- */
.fab{position:fixed;right:22px;z-index:900;width:54px;height:54px;border-radius:50%;display:grid;place-items:center;
  color:#fff;box-shadow:0 12px 30px -8px rgba(0,0,0,.6);transition:transform .3s var(--ease),box-shadow .3s}
.fab svg{width:27px;height:27px}
.fab:hover{transform:scale(1.1) translateY(-2px)}
.fab-wa{bottom:22px;background:#25d366}
.fab-wa::before{content:"";position:absolute;inset:0;border-radius:50%;background:#25d366;z-index:-1;animation:pulse 2.4s infinite}
@keyframes pulse{0%{transform:scale(1);opacity:.6}70%{transform:scale(1.7);opacity:0}100%{opacity:0}}
.fab-call{bottom:86px;background:linear-gradient(120deg,var(--blue-500),var(--blue-400))}

/* ---------- Reveal animation ---------- */
.reveal{opacity:0;transform:translateY(28px);transition:opacity .8s var(--ease),transform .8s var(--ease)}
.reveal.in{opacity:1;transform:none}

/* ---------- Responsive ---------- */
@media(max-width:1024px){
  .feature-grid{grid-template-columns:repeat(2,1fr)}
  .service-grid{grid-template-columns:repeat(2,1fr)}
  .why-grid,.about-grid,.contact-grid{grid-template-columns:1fr;gap:40px}
  .why-media img{min-height:360px}
  .footer-top{grid-template-columns:1fr 1fr}
}
@media(max-width:900px){
  /* full-screen mobile menu */
  .nav-links{position:fixed;inset:0;width:100%;height:100dvh;flex-direction:column;align-items:center;
    justify-content:center;gap:26px;padding:80px 32px 40px;background:rgba(7,12,31,.985);backdrop-filter:blur(22px);
    transform:translateX(100%);transition:transform .42s var(--ease);z-index:1300}
  .nav-links.open{transform:translateX(0)}
  .nav-links a{font-size:1.35rem;color:#fff;font-family:"Sora",sans-serif;font-weight:600}
  .nav-links a::after{left:50%;transform:translateX(-50%)}
  .nav-toggle{display:flex;position:relative;z-index:1301}
  .nav-cta .btn-phone{display:none}
  body.menu-open .fab{opacity:0;pointer-events:none}
  .fab{transition:opacity .3s,transform .3s var(--ease)}
}
@media(max-width:768px){
  .section{padding:58px 0}
  .feature-strip{padding:42px 0}
  .section-head{margin-bottom:34px}
  .feature-grid{gap:14px}
  .service-grid{gap:16px}
  .hero{min-height:auto;padding:116px 0 54px}
  .hero-stats{gap:26px}
  .hstat strong{font-size:1.9rem}
  .why-list{grid-template-columns:1fr 1fr}
  .footer-top{grid-template-columns:1fr 1fr}
}
@media(max-width:560px){
  .container{padding:0 18px}
  .feature-grid{grid-template-columns:1fr;gap:12px}
  .feature{padding:22px 20px}
  .service-grid{grid-template-columns:1fr}
  .gallery-grid{grid-template-columns:1fr 1fr;gap:12px}
  .why-list{grid-template-columns:1fr}
  .site-footer{padding-top:44px}
  .footer-top{grid-template-columns:1fr 1fr;gap:26px 20px;padding-bottom:34px}
  .footer-brand{grid-column:1 / -1}
  .footer-brand p{margin-top:14px}
  .footer-col h4{margin-bottom:13px}
  .footer-col a,.footer-col span{margin-bottom:9px;font-size:.86rem}
  .hero h1{font-size:2.2rem;line-height:1.14}
  .hero-lead{font-size:1rem}
  .hero-actions{gap:12px;margin-bottom:40px}
  .hero-actions .btn{flex:1 1 100%}
  .nav-cta .btn{padding:.68em 1.05em;font-size:.86rem}
  .brand-logo{height:30px}
  .site-header.scrolled .brand-logo{height:27px}
  .hstat{flex:1 1 40%}
  .hstat strong{font-size:1.75rem}
  .section h2{font-size:1.72rem}
  .about-card{padding:26px 22px;max-width:360px;margin:0 auto}
  .about-card img{max-width:230px}
  .contact-form{padding:26px 20px}
}
@media(max-width:400px){
  .hero-stats{gap:16px}
  .hero h1{font-size:2rem}
}

@media(prefers-reduced-motion:reduce){
  *{animation-duration:.001ms!important;transition-duration:.001ms!important}
  .reveal{opacity:1;transform:none}
}