/* IO-Tech-Vision — design system (futuriste, sombre, lumineux) */
@font-face{font-family:'Space Grotesk';font-weight:500;font-display:swap;src:url(fonts/sg-500.woff2) format('woff2');}
@font-face{font-family:'Space Grotesk';font-weight:600;font-display:swap;src:url(fonts/sg-600.woff2) format('woff2');}
@font-face{font-family:'Space Grotesk';font-weight:700;font-display:swap;src:url(fonts/sg-700.woff2) format('woff2');}
@font-face{font-family:Inter;font-weight:400;font-display:swap;src:url(fonts/in-400.woff2) format('woff2');}
@font-face{font-family:Inter;font-weight:500;font-display:swap;src:url(fonts/in-500.woff2) format('woff2');}
@font-face{font-family:Inter;font-weight:600;font-display:swap;src:url(fonts/in-600.woff2) format('woff2');}
:root{
  --bg:#060A14; --bg-2:#0B1222; --glass:rgba(255,255,255,.045); --glass-2:rgba(255,255,255,.08);
  --line:rgba(160,190,255,.16); --ink:#EAF0FF; --muted:#93A0BC; --dim:#5E6A85;
  --cyan:#3BE0FF; --blue:#3D7BFF; --violet:#A77BFF; --mint:#3CF2B0; --amber:#FFB547;
  --mes:#3BE0FF; --ar:#A77BFF; --ana:#3CF2B0;
  --r:18px; --shadow:0 20px 60px rgba(0,0,0,.45);
}
*{box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{margin:0;background:var(--bg);color:var(--ink);font:16px/1.6 Inter,system-ui,-apple-system,sans-serif;-webkit-font-smoothing:antialiased;overflow-x:hidden;}
body::before{content:"";position:fixed;inset:0;z-index:-2;background:
  radial-gradient(900px 500px at 15% -10%,rgba(61,123,255,.22),transparent 60%),
  radial-gradient(700px 500px at 100% 10%,rgba(167,123,255,.16),transparent 60%),
  radial-gradient(800px 600px at 50% 120%,rgba(59,224,255,.10),transparent 60%);}
body::after{content:"";position:fixed;inset:0;z-index:-1;pointer-events:none;opacity:.35;
  background-image:linear-gradient(rgba(160,190,255,.06) 1px,transparent 1px),linear-gradient(90deg,rgba(160,190,255,.06) 1px,transparent 1px);
  background-size:56px 56px;mask-image:radial-gradient(ellipse at 50% 0%,#000 30%,transparent 75%);}
a{color:var(--cyan);}
img,video{max-width:100%;display:block;}
.wrap{max-width:1140px;margin:0 auto;padding:0 16px;}
h1,h2,h3{font-family:'Space Grotesk',Inter,sans-serif;letter-spacing:-.02em;line-height:1.08;margin:0;}
h1{font-size:clamp(36px,6.4vw,72px);font-weight:700;}
h2{font-size:clamp(28px,4vw,46px);font-weight:700;}
h3{font-size:22px;font-weight:600;}
.grad{background:linear-gradient(90deg,var(--cyan),var(--blue) 45%,var(--violet));-webkit-background-clip:text;background-clip:text;color:transparent;}
.eyebrow{display:inline-flex;align-items:center;gap:8px;font:600 12.5px/1 'Space Grotesk',sans-serif;letter-spacing:.16em;text-transform:uppercase;color:var(--cyan);}
.eyebrow::before{content:"";width:6px;height:6px;border-radius:50%;background:currentColor;box-shadow:0 0 12px currentColor;}
.lead{color:var(--muted);font-size:clamp(16px,2vw,19px);max-width:680px;}
.muted{color:var(--muted);} .small{font-size:13.5px;color:var(--dim);}

/* header */
.hdr{position:sticky;top:0;z-index:50;backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);background:rgba(6,10,20,.72);border-bottom:1px solid var(--line);}
.hdr .wrap{display:flex;align-items:center;gap:16px;height:64px;}
.logo{display:flex;align-items:center;gap:10px;text-decoration:none;color:var(--ink);font:700 18px 'Space Grotesk',sans-serif;white-space:nowrap;}
.logo svg{filter:drop-shadow(0 0 8px rgba(59,224,255,.6));}
.menu{display:flex;gap:4px;margin-left:auto;align-items:center;}
.menu a{color:var(--muted);text-decoration:none;font-weight:500;font-size:14.5px;padding:8px 12px;border-radius:10px;white-space:nowrap;}
.menu a:hover,.menu a.on{color:var(--ink);background:var(--glass-2);}
.menu .dot{display:inline-block;width:7px;height:7px;border-radius:50%;margin-right:7px;vertical-align:1px;}
.burger{display:none;margin-left:auto;background:none;border:1px solid var(--line);color:var(--ink);border-radius:10px;padding:8px 11px;font-size:16px;}
@media (max-width:860px){
  .burger{display:block;}
  .menu{display:none;position:absolute;top:64px;left:0;right:0;flex-direction:column;align-items:stretch;background:rgba(6,10,20,.97);border-bottom:1px solid var(--line);padding:10px 16px 16px;}
  .menu.open{display:flex;}
  .menu a{padding:12px;}
}

/* buttons */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:14px 22px;border-radius:12px;font:600 15.5px Inter,sans-serif;text-decoration:none;border:0;cursor:pointer;color:#04101F;background:linear-gradient(90deg,var(--cyan),#7FB2FF);box-shadow:0 0 0 1px rgba(59,224,255,.3),0 10px 30px rgba(59,224,255,.25);transition:transform .15s,box-shadow .15s;}
.btn:hover{transform:translateY(-1px);box-shadow:0 0 0 1px rgba(59,224,255,.5),0 14px 40px rgba(59,224,255,.35);}
.btn.ghost{background:var(--glass);color:var(--ink);box-shadow:inset 0 0 0 1px var(--line);}
.btn.ar{background:linear-gradient(90deg,var(--violet),#D3B8FF);box-shadow:0 10px 30px rgba(167,123,255,.3);}
.btn.ana{background:linear-gradient(90deg,var(--mint),#A6FFE0);box-shadow:0 10px 30px rgba(60,242,176,.25);}
.btns{display:flex;gap:12px;flex-wrap:wrap;}

/* sections & cards */
section{padding:72px 0;}
.hero{padding:84px 0 56px;}
.center{text-align:center;} .center .lead{margin-left:auto;margin-right:auto;} .center .btns{justify-content:center;}
.glass{background:var(--glass);border:1px solid var(--line);border-radius:var(--r);backdrop-filter:blur(8px);}
.grid{display:grid;gap:18px;}
.g3{grid-template-columns:repeat(3,1fr);} .g2{grid-template-columns:repeat(2,1fr);}
@media (max-width:900px){.g3,.g2{grid-template-columns:1fr;}}
.feat{padding:24px;}
.feat .ic{width:44px;height:44px;border-radius:12px;display:grid;place-items:center;font-size:22px;background:var(--glass-2);border:1px solid var(--line);margin-bottom:14px;}
.feat p{color:var(--muted);margin:8px 0 0;}

/* product cards (home) */
.prod{position:relative;padding:22px;display:flex;flex-direction:column;overflow:hidden;}
.prod::before{content:"";position:absolute;inset:-1px;border-radius:var(--r);padding:1px;background:linear-gradient(160deg,var(--c),transparent 55%);-webkit-mask:linear-gradient(#000 0 0) content-box,linear-gradient(#000 0 0);-webkit-mask-composite:xor;mask-composite:exclude;pointer-events:none;}
.prod .badge{align-self:flex-start;font:600 12px 'Space Grotesk';letter-spacing:.08em;text-transform:uppercase;color:var(--c);border:1px solid color-mix(in srgb,var(--c) 40%,transparent);padding:4px 10px;border-radius:999px;margin-bottom:14px;}
.prod h3{font-size:26px;}
.prod p{color:var(--muted);flex:1;}
.prod .price{font:700 30px 'Space Grotesk';margin:14px 0 2px;}
.prod .price small{font:500 14px Inter;color:var(--muted);}
.prod .thumb{position:relative;border-radius:12px;overflow:hidden;margin:-4px -4px 18px;border:1px solid var(--line);aspect-ratio:16/9;background:#000;cursor:pointer;}
.prod .thumb img{width:100%;height:100%;object-fit:cover;opacity:.85;}
.play{position:absolute;inset:0;display:grid;place-items:center;}
.play span{width:58px;height:58px;border-radius:50%;display:grid;place-items:center;background:rgba(6,10,20,.6);border:1px solid rgba(255,255,255,.35);backdrop-filter:blur(6px);font-size:20px;color:#fff;box-shadow:0 0 30px var(--c,#3BE0FF);}
.prod.flag{--c:var(--mes);} .prod.ar{--c:var(--ar);} .prod.ana{--c:var(--ana);}

/* video */
.video{border-radius:20px;overflow:hidden;border:1px solid var(--line);box-shadow:var(--shadow),0 0 80px rgba(59,224,255,.12);background:#000;aspect-ratio:16/9;}
.video video{width:100%;height:100%;object-fit:cover;}

/* pricing */
.plan{padding:26px;}
.plan .amt{font:700 44px 'Space Grotesk';}
.plan .amt small{font:500 15px Inter;color:var(--muted);}
.plan ul{list-style:none;padding:0;margin:16px 0 22px;}
.plan li{padding:6px 0 6px 26px;position:relative;color:var(--muted);}
.plan li::before{content:"";position:absolute;left:0;top:13px;width:12px;height:2px;background:var(--c,var(--cyan));box-shadow:0 0 8px var(--c,var(--cyan));}
.pack{background:linear-gradient(120deg,rgba(59,224,255,.12),rgba(167,123,255,.14) 55%,rgba(60,242,176,.12));border:1px solid rgba(167,123,255,.35);border-radius:22px;padding:30px;}
.chip{display:inline-block;font:600 12px 'Space Grotesk';letter-spacing:.06em;padding:4px 10px;border-radius:999px;background:var(--glass-2);border:1px solid var(--line);color:var(--ink);}

/* rules strip */
.rules{display:flex;flex-wrap:wrap;gap:10px;justify-content:center;margin-top:26px;}
.rules span{font-size:14px;color:var(--muted);padding:8px 14px;border-radius:999px;border:1px solid var(--line);background:var(--glass);}
.rules b{color:var(--ink);font-weight:600;}

/* compare table */
.tbl{width:100%;border-collapse:collapse;font-size:15px;}
.tbl th,.tbl td{padding:14px 12px;border-bottom:1px solid var(--line);text-align:left;vertical-align:top;}
.tbl th{color:var(--dim);font:600 12.5px 'Space Grotesk';letter-spacing:.1em;text-transform:uppercase;}
.tbl td.hi{color:var(--cyan);font-weight:600;}
.scroll-x{overflow-x:auto;}

/* faq */
details{border-bottom:1px solid var(--line);padding:16px 0;}
summary{cursor:pointer;font-weight:600;list-style:none;display:flex;justify-content:space-between;gap:12px;}
summary::after{content:"+";color:var(--cyan);font-size:20px;line-height:1;}
details[open] summary::after{content:"–";}
details p{color:var(--muted);margin:10px 0 0;}

/* footer */
.ftr{border-top:1px solid var(--line);padding:36px 0 46px;color:var(--dim);font-size:14px;}
.ftr .wrap{display:flex;flex-wrap:wrap;gap:18px 32px;justify-content:space-between;}
.ftr a{color:var(--muted);text-decoration:none;}
.ftr nav{display:flex;flex-wrap:wrap;gap:8px 18px;}

/* reveal */
.rv{opacity:0;transform:translateY(18px);transition:opacity .7s ease,transform .7s ease;}
.rv.in{opacity:1;transform:none;}
@media (prefers-reduced-motion:reduce){.rv{opacity:1;transform:none;transition:none;}}