/* Ventry Windows & Doors · v3 high-tech design */
:root{
  --bg:#0a0b0d; --bg2:#111317; --bg3:#181b21; --white:#fff; --off:#f5f6f7; --line:#e6e7ea; --line-d:rgba(255,255,255,.12);
  --ink:#0d0f12; --mute:#5f646d; --mute-d:#9aa1ac; --acc:#7dd3fc; --acc2:#a78bfa;
  --grad:linear-gradient(90deg,#7dd3fc,#a78bfa);
  --head:"Space Grotesk",Inter,system-ui,sans-serif; --body:Inter,system-ui,-apple-system,"Segoe UI",Roboto,Arial,sans-serif;
  --max:1280px; --r:18px; --ease:cubic-bezier(.2,.7,.2,1);
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;font-family:var(--body);font-size:16.5px;line-height:1.6;color:var(--ink);background:#fff;-webkit-font-smoothing:antialiased;text-rendering:optimizeLegibility}
img{max-width:100%;height:auto;display:block}
a{color:inherit}
h1,h2,h3{font-family:var(--head);font-weight:600;letter-spacing:-.025em;line-height:1.02;margin:0 0 .45em}
h1{font-size:clamp(2.7rem,7vw,6.2rem)}
h2{font-size:clamp(2rem,4.4vw,3.6rem)}
h3{font-size:clamp(1.25rem,1.8vw,1.6rem);letter-spacing:-.015em;line-height:1.15}
p{margin:0 0 1em}
.wrap{max-width:var(--max);margin:0 auto;padding:0 28px}
.skip{position:absolute;left:-999px}.skip:focus{left:12px;top:12px;z-index:200;background:#fff;color:#000;padding:8px 12px}
.kicker{display:inline-block;font-family:var(--head);font-size:.76rem;font-weight:500;letter-spacing:.22em;text-transform:uppercase;color:var(--mute);margin-bottom:1.2rem}
.lead{font-size:clamp(1.05rem,1.4vw,1.2rem);color:var(--mute);max-width:640px}
.grad{background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent}
.fine{font-size:.84rem;color:var(--mute);margin-top:1.4rem}
.fine a{color:inherit}

/* buttons */
.btn{display:inline-flex;align-items:center;gap:.6em;font:500 .95rem/1 var(--body);padding:15px 24px;border-radius:999px;background:#fff;color:#0a0b0d;text-decoration:none;border:1px solid #fff;cursor:pointer;transition:transform .3s var(--ease),background .3s,color .3s,box-shadow .3s}
.btn:hover{transform:translateY(-2px);box-shadow:0 10px 30px rgba(125,211,252,.25)}
.btn .arr{transition:transform .3s var(--ease)}.btn:hover .arr{transform:translateX(4px)}
.btn.ghost{background:transparent;color:#fff;border-color:rgba(255,255,255,.35)}
.btn.ghost:hover{border-color:#fff;box-shadow:none}
.btn.dark,.sec:not(.dark) .btn:not(.ghost){background:#0a0b0d;color:#fff;border-color:#0a0b0d}
.hero .btn:not(.ghost),.phero .btn:not(.ghost),.dark .btn:not(.ghost),.ctabox .btn:not(.ghost),.ftr .btn{background:#fff;color:#0a0b0d;border-color:#fff}
.btn.sm{padding:10px 18px;font-size:.86rem}
.actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:2rem}

/* header */
.hdr{position:fixed;inset:0 0 auto;z-index:100;color:#fff;transition:background .4s,border-color .4s,backdrop-filter .4s;border-bottom:1px solid transparent}
.hdr.solid{background:rgba(10,11,13,.72);backdrop-filter:saturate(1.6) blur(18px);-webkit-backdrop-filter:saturate(1.6) blur(18px);border-color:var(--line-d)}
.nav{display:flex;align-items:center;gap:28px;height:72px}
.brand{display:flex;align-items:center;gap:12px;text-decoration:none;color:inherit;margin-right:auto}
.brand svg{width:30px;height:30px}
.brand span{display:flex;flex-direction:column;line-height:1}
.brand b{font:600 1.05rem/1 var(--head);letter-spacing:.24em}
.brand i{font:400 .62rem/1 var(--body);letter-spacing:.28em;text-transform:uppercase;opacity:.65;margin-top:5px;font-style:normal}
.menu{display:flex;gap:4px;list-style:none;margin:0;padding:0}
.menu a{display:block;padding:8px 12px;font-size:.88rem;text-decoration:none;color:rgba(255,255,255,.78);border-radius:999px;transition:color .2s,background .2s}
.menu a:hover,.menu a[aria-current=page]{color:#fff;background:rgba(255,255,255,.08)}
.m-cta{display:none}
.burger{display:none;width:44px;height:44px;border-radius:50%;border:1px solid var(--line-d);background:transparent;cursor:pointer;position:relative}
.burger span{position:absolute;left:13px;right:13px;height:1.5px;background:#fff;transition:transform .3s,top .3s}
.burger span:first-child{top:18px}.burger span:last-child{top:25px}
.burger[aria-expanded=true] span:first-child{top:21px;transform:rotate(45deg)}.burger[aria-expanded=true] span:last-child{top:21px;transform:rotate(-45deg)}

/* hero */
.hero{position:relative;min-height:min(100vh,980px);min-height:min(100svh,980px);background:var(--bg);color:#fff;display:flex;flex-direction:column;justify-content:flex-end;overflow:hidden}
.bg{position:absolute;inset:0;width:100%;height:100%;object-fit:cover}
.hero .bg{animation:zoom 18s var(--ease) both}
@keyframes zoom{from{transform:scale(1.08)}to{transform:scale(1)}}
.shade{position:absolute;inset:0;background:linear-gradient(180deg,rgba(10,11,13,.55) 0%,rgba(10,11,13,.05) 30%,rgba(10,11,13,.35) 58%,rgba(10,11,13,.95) 100%)}
.hero-in{position:relative;z-index:2;padding-top:140px;width:100%}
.hero h1{max-width:12ch}
.hero p{max-width:560px;font-size:1.12rem;color:rgba(255,255,255,.78)}
.hero .kicker,.phero .kicker,.dark .kicker,.ctabox .kicker{color:rgba(255,255,255,.6)}
.stats{position:relative;z-index:2;display:grid;width:100%;grid-template-columns:repeat(4,1fr);margin-top:64px;margin-bottom:36px;border-top:1px solid var(--line-d)}
.stats div{padding:22px 22px 6px 0;border-right:1px solid var(--line-d);margin-right:22px}
.stats div:last-child{border-right:0}
.stats b{display:block;font:600 clamp(1.6rem,3vw,2.4rem)/1 var(--head);letter-spacing:-.03em}
.stats span{display:block;font-size:.8rem;color:rgba(255,255,255,.6);margin-top:8px;letter-spacing:.02em}

.phero{position:relative;min-height:min(78vh,760px);background:var(--bg);color:#fff;display:flex;align-items:flex-end;overflow:hidden}
.phero .wrap{position:relative;z-index:2;width:100%;padding-top:150px;padding-bottom:72px}
.phero h1{font-size:clamp(2.5rem,6vw,5.2rem);max-width:15ch}
.phero p{max-width:560px;font-size:1.1rem;color:rgba(255,255,255,.78)}
.phero.short{min-height:0}
.shade.solid{background:radial-gradient(1200px 500px at 80% -10%,rgba(125,211,252,.22),transparent 60%),radial-gradient(900px 500px at 0% 120%,rgba(167,139,250,.18),transparent 60%),var(--bg)}

/* sections */
.sec{padding:clamp(80px,11vw,150px) 0;position:relative}
.sec.dark{background:var(--bg);color:#fff}
.sec.dark .lead,.sec.dark p{color:rgba(255,255,255,.68)}
.sec.tint{background:var(--off)}
.shead{max-width:820px;margin-bottom:clamp(40px,6vw,72px)}
.split{display:grid;grid-template-columns:1fr 1fr;gap:clamp(40px,6vw,96px);align-items:center}
.split.rev>:first-child{order:2}
.media{margin:0;border-radius:var(--r);overflow:hidden;position:relative;background:var(--bg3)}
.media img{width:100%;aspect-ratio:4/3;object-fit:cover;transition:transform 1.2s var(--ease)}
.media:hover img{transform:scale(1.04)}
.media.glow{box-shadow:0 0 0 1px var(--line-d),0 40px 120px -40px rgba(125,211,252,.45)}

/* product grid */
.pgrid{display:grid;grid-template-columns:repeat(3,1fr);grid-auto-rows:minmax(300px,auto);gap:18px}
.pcard{position:relative;border-radius:var(--r);overflow:hidden;background:var(--bg);color:#fff;text-decoration:none;min-height:420px;display:flex;align-items:flex-end;isolation:isolate}
.pcard img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;z-index:-2;transition:transform 1.2s var(--ease)}
.pcard::after{content:"";position:absolute;inset:0;z-index:-1;background:linear-gradient(180deg,rgba(10,11,13,0) 35%,rgba(10,11,13,.88) 100%);transition:opacity .4s}
.pcard:hover img{transform:scale(1.06)}
.pcard.big{grid-column:span 2;grid-row:span 2;min-height:640px}
.pcard.wide{grid-column:span 3;min-height:420px}
.pc{padding:30px;width:100%}
.pc span{font:500 .75rem var(--head);letter-spacing:.2em;color:rgba(255,255,255,.6)}
.pc h3{margin:.4em 0 .3em;font-size:clamp(1.5rem,2.4vw,2.2rem)}
.pc p{color:rgba(255,255,255,.75);max-width:520px;font-size:.96rem;margin-bottom:.8em}
.pc i{font-style:normal;font-size:.9rem;display:inline-block;padding:8px 16px;border:1px solid rgba(255,255,255,.35);border-radius:999px;backdrop-filter:blur(8px);background:rgba(255,255,255,.06);transition:background .3s,border-color .3s}
.pcard:hover .pc i{background:#fff;color:#000;border-color:#fff}

/* spec grid */
.spec{display:grid;grid-template-columns:repeat(2,1fr);margin:28px 0 0;border-top:1px solid var(--line)}
.spec div{padding:16px 18px 16px 0;border-bottom:1px solid var(--line)}
.spec div:nth-child(odd){border-right:1px solid var(--line);padding-right:18px}
.spec div:nth-child(even){padding-left:18px}
.spec dt{font:500 .7rem var(--head);letter-spacing:.18em;text-transform:uppercase;color:var(--mute);margin-bottom:6px}
.spec dd{margin:0;font-size:.98rem;font-weight:500;font-feature-settings:"tnum"}
.dark .spec,.dark .spec div{border-color:var(--line-d)}
.dark .spec dt{color:var(--mute-d)}
aside .spec{grid-template-columns:1fr}
aside .spec div:nth-child(n){border-right:0;padding-left:0}

/* blocks */
.block{display:grid;grid-template-columns:1.05fr 1fr;gap:clamp(36px,6vw,90px);align-items:center;padding:clamp(40px,6vw,72px) 0;border-top:1px solid var(--line)}
.dark .block{border-color:var(--line-d)}
.block:first-of-type{border-top:0;padding-top:0}
.block.rev>.media{order:2}
.block.solo{grid-template-columns:1fr}
.block.solo .btxt{display:grid;grid-template-columns:1fr 1.25fr;gap:0 clamp(36px,6vw,90px);align-items:start}
.block.solo .btxt>.tag,.block.solo .btxt>h3,.block.solo .btxt>p{grid-column:1}
.block.solo .spec{grid-column:2;grid-row:1/span 3;margin-top:0}
.tag{display:inline-block;font:500 .7rem var(--head);letter-spacing:.18em;text-transform:uppercase;padding:6px 12px;border:1px solid var(--line);border-radius:999px;color:var(--mute);margin-bottom:18px;justify-self:start}
.dark .tag{border-color:var(--line-d);color:var(--mute-d)}
.btxt p{color:var(--mute)}

/* steps */
.steps{list-style:none;margin:0;padding:0;display:grid;grid-template-columns:repeat(4,1fr);border-top:1px solid var(--line)}
.steps.three{grid-template-columns:repeat(3,1fr)}
.steps li{padding:30px 28px 10px 0;border-right:1px solid var(--line);margin-right:28px}
.steps li:last-child{border-right:0;margin-right:0}
.steps span{font:500 .78rem var(--head);letter-spacing:.2em;color:var(--mute)}
.steps h3{margin:1.6em 0 .5em}
.steps p{color:var(--mute);font-size:.95rem}
.dark .steps{border-color:var(--line-d)}.dark .steps li{border-color:var(--line-d)}
.steps.glass{border:0;gap:18px}
.steps.glass li{margin:0;padding:30px;border:1px solid var(--line-d);border-radius:var(--r);background:linear-gradient(160deg,rgba(255,255,255,.07),rgba(255,255,255,.015));backdrop-filter:blur(10px)}
.steps.glass li:last-child{border-right:1px solid var(--line-d)}

.ticks{list-style:none;padding:0;margin:0 0 2rem;border-top:1px solid var(--line-d)}
.sec:not(.dark) .ticks{border-color:var(--line)}
.ticks li{padding:15px 0 15px 34px;border-bottom:1px solid var(--line-d);position:relative}
.sec:not(.dark) .ticks li{border-color:var(--line)}
.ticks li::before{content:"";position:absolute;left:0;top:21px;width:16px;height:1.5px;background:var(--grad)}
.chips{display:flex;flex-wrap:wrap;gap:10px;list-style:none;padding:0;margin:0}
.chips li{padding:12px 20px;border:1px solid var(--line);border-radius:999px;font-weight:500;transition:border-color .3s,transform .3s var(--ease)}
.chips li:hover{border-color:#0a0b0d;transform:translateY(-2px)}
.callout{margin-top:40px;padding:28px 30px;border:1px solid var(--line);border-radius:var(--r);background:linear-gradient(135deg,#f7fbff,#faf8ff);position:relative;overflow:hidden}
.callout::before{content:"";position:absolute;left:0;top:0;bottom:0;width:3px;background:var(--grad)}
.callout b{font-family:var(--head);font-size:1.05rem;display:block;margin-bottom:6px}
.callout p{margin:0;color:var(--mute)}

/* cta */
.cta{padding:0 0 clamp(80px,10vw,130px)}
.sec+.cta,.sec.tint+.cta{padding-top:0}
.sec.dark+.cta{padding-top:clamp(60px,8vw,100px)}
.ctabox{border-radius:28px;padding:clamp(40px,6vw,80px);background:radial-gradient(800px 400px at 100% 0%,rgba(125,211,252,.28),transparent 60%),radial-gradient(700px 400px at 0% 100%,rgba(167,139,250,.24),transparent 60%),var(--bg);color:#fff;display:grid;grid-template-columns:1.4fr 1fr;gap:30px;align-items:end;border:1px solid var(--line-d)}
.ctabox p{color:rgba(255,255,255,.7);max-width:520px;margin:0}
.ctabox h2{margin-bottom:.3em}
.ctabox .actions{justify-content:flex-end;margin:0}

/* form */
.qgrid{display:grid;grid-template-columns:1.6fr 1fr;gap:clamp(36px,6vw,80px);align-items:start}
.quote{border:1px solid var(--line);border-radius:var(--r);padding:clamp(24px,4vw,44px)}
.fields{display:grid;grid-template-columns:1fr 1fr;gap:22px}
.fields .full{grid-column:1/-1}
label,legend{display:block;font:500 .72rem var(--head);letter-spacing:.16em;text-transform:uppercase;color:var(--mute);margin-bottom:8px}
input,select,textarea{width:100%;font:inherit;font-size:1rem;padding:13px 0;border:0;border-bottom:1px solid #cfd2d7;background:transparent;border-radius:0;transition:border-color .3s;color:var(--ink)}
input:focus,select:focus,textarea:focus{outline:0;border-bottom-color:#0a0b0d;box-shadow:0 1px 0 #0a0b0d}
textarea{min-height:120px;resize:vertical}
fieldset{border:0;padding:0;margin:0}
.checks{display:grid;grid-template-columns:1fr 1fr;gap:10px}
.checks label{display:flex;align-items:center;gap:10px;font:400 .95rem var(--body);letter-spacing:0;text-transform:none;color:var(--ink);border:1px solid var(--line);border-radius:12px;padding:12px 14px;cursor:pointer;margin:0;transition:border-color .2s}
.checks label:hover{border-color:#0a0b0d}
.checks input{width:auto;accent-color:#0a0b0d}

/* footer */
.ftr{background:var(--bg);color:rgba(255,255,255,.65);padding:90px 0 34px;font-size:.92rem;border-top:1px solid var(--line-d)}
.ftr a{color:rgba(255,255,255,.85);text-decoration:none}.ftr a:hover{color:#fff}
.ftop{display:grid;grid-template-columns:1.6fr 1fr 1fr 1.1fr;gap:40px}
.fbrand .brand{color:#fff;margin-bottom:20px}
.fbrand p{max-width:330px;margin-bottom:24px}
.ftr h4{font:500 .72rem var(--head);letter-spacing:.2em;text-transform:uppercase;color:rgba(255,255,255,.45);margin:0 0 16px}
.ftr ul{list-style:none;margin:0;padding:0}.ftr li{margin-bottom:9px}
.fbot{margin-top:64px;padding-top:24px;border-top:1px solid var(--line-d);display:flex;flex-wrap:wrap;gap:12px 28px;justify-content:space-between;font-size:.8rem;color:rgba(255,255,255,.45)}

/* reveal */
.js .rv{opacity:0;transform:translateY(26px);transition:opacity .9s var(--ease),transform .9s var(--ease)}
.js .rv.in{opacity:1;transform:none}
@media (prefers-reduced-motion:reduce){.js .rv{opacity:1;transform:none;transition:none}.hero .bg{animation:none}html{scroll-behavior:auto}}

/* responsive */
@media (max-width:1100px){
  .menu{position:fixed;top:72px;left:0;right:0;flex-direction:column;background:rgba(10,11,13,.96);backdrop-filter:blur(18px);padding:16px 22px 26px;border-bottom:1px solid var(--line-d);gap:2px;transform:translateY(-8px);opacity:0;pointer-events:none;transition:opacity .3s,transform .3s}
  .menu.open{opacity:1;transform:none;pointer-events:auto}
  .menu a{font-size:1.05rem;padding:12px 6px;border-radius:0;border-bottom:1px solid var(--line-d)}
  .m-cta{display:block;margin-top:14px}.m-cta .btn{display:flex;justify-content:center;border-bottom:0;padding:14px}
  .d-cta{display:none}.burger{display:block}
  .pgrid{grid-template-columns:1fr 1fr}.pcard.big{grid-column:span 2;grid-row:auto;min-height:520px}.pcard.wide{grid-column:span 2}
  .steps{grid-template-columns:1fr 1fr}.steps li:nth-child(2){border-right:0;margin-right:0}
  .ftop{grid-template-columns:1fr 1fr}
}
@media (max-width:820px){
  body{font-size:16px}.wrap{padding:0 20px}
  .split,.block,.qgrid,.ctabox{grid-template-columns:1fr}
  .split.rev>:first-child,.block.rev>.media{order:0}
  .block.solo .btxt{grid-template-columns:1fr}.block.solo .spec{grid-column:1;grid-row:auto;margin-top:24px}
  .stats{grid-template-columns:1fr 1fr;margin-top:40px}.stats div:nth-child(2){border-right:0}.stats div:nth-child(n+3){border-top:1px solid var(--line-d)}
  .pgrid{grid-template-columns:1fr}.pcard,.pcard.big,.pcard.wide{grid-column:auto;min-height:380px}
  .steps,.steps.three{grid-template-columns:1fr}.steps li{border-right:0;margin-right:0;border-bottom:1px solid var(--line);padding-right:0}.dark .steps li{border-color:var(--line-d)}
  .steps.glass li{border-bottom:1px solid var(--line-d)}
  .ctabox .actions{justify-content:flex-start}
  .phero{min-height:min(70vh,640px)}
}
@media (max-width:560px){
  .spec{grid-template-columns:1fr}.spec div:nth-child(odd){border-right:0}.spec div:nth-child(even){padding-left:0}
  .fields,.checks{grid-template-columns:1fr}
  .ftop{grid-template-columns:1fr}
  .hero h1{font-size:clamp(2.6rem,12vw,3.4rem)}
  .brand i{letter-spacing:.2em}
}
/* catalog downloads */
.catlist{display:grid;grid-template-columns:repeat(4,1fr);gap:16px}
.catcard{display:flex;flex-direction:column;text-decoration:none;color:var(--ink);background:#fff;border:1px solid var(--line);border-radius:var(--r);padding:26px;min-height:250px;position:relative;overflow:hidden;transition:transform .35s var(--ease),box-shadow .35s,border-color .35s}
.catcard::before{content:"";position:absolute;left:0;right:0;top:0;height:3px;background:var(--grad);opacity:.85}
.catcard:hover{transform:translateY(-4px);border-color:#0a0b0d;box-shadow:0 24px 50px -24px rgba(10,11,13,.35)}
.catcard .kicker{margin-bottom:1rem;font-size:.68rem}
.catcard h3{margin-bottom:.4em}
.catcard p{color:var(--mute);font-size:.94rem;flex:1}
.catcard i{font-style:normal;font-weight:500;font-size:.92rem}
@media (max-width:1100px){.catlist{grid-template-columns:1fr 1fr}}
@media (max-width:560px){.catlist{grid-template-columns:1fr}}