/* Integra Waste Intelligence — Learning Center
   Shared styles for every page. Brand: Integra orange #FF6700, app font Public Sans. */
:root{
  --orange:#FF6700; --orange-hover:#E85E00; --orange-tint:#FFF1E7; --orange-line:#FFD7BD;
  --ink:#2F2B3D; --heading:#444050; --text:#6D6B77; --muted:#ACAAB1; --line:#E9E8EC;
  --page:#F8F7FA; --white:#fff;
  --green:#28C76F; --green-tint:#DDF6E8; --blue:#0D6EFD; --blue-tint:#DCEBFF;
  --purple:#7367F0; --purple-tint:#E9E7FD; --teal:#20C997; --teal-tint:#D7F6EC; --red:#EA5455; --red-tint:#FCE4E4;
  --shadow-sm:0 2px 8px rgba(47,43,61,.08);
  --shadow-md:0 14px 34px -14px rgba(47,43,61,.25);
  --shadow-lg:0 30px 80px -20px rgba(47,43,61,.28),0 10px 30px -10px rgba(47,43,61,.12);
  --max:1200px; --r:14px;
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth;scroll-padding-top:90px}
body{font-family:"Public Sans",system-ui,-apple-system,"Segoe UI",sans-serif;color:var(--text);background:var(--white);font-size:17px;line-height:1.6;-webkit-font-smoothing:antialiased}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
h1,h2,h3,h4{color:var(--ink);line-height:1.15;letter-spacing:-.02em}
.wrap{max-width:var(--max);margin:0 auto;padding:0 24px}
.center{text-align:center}

/* Buttons & links */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;font:600 15px/1 "Public Sans",sans-serif;border-radius:10px;padding:15px 24px;border:1px solid transparent;cursor:pointer;transition:.15s;white-space:nowrap}
.btn svg{width:18px;height:18px}
.btn-primary{background:var(--orange);color:#fff;box-shadow:0 6px 16px -6px rgba(255,103,0,.6)}
.btn-primary:hover{background:var(--orange-hover);transform:translateY(-1px)}
.btn-secondary{background:#fff;color:var(--ink);border-color:var(--line);box-shadow:var(--shadow-sm)}
.btn-secondary:hover{border-color:var(--orange-line);color:var(--orange)}
.btn-white{background:#fff;color:var(--orange)}
.btn-white:hover{background:var(--ink);color:#fff}
.btn-outline-white{border-color:rgba(255,255,255,.7);color:#fff}
.btn-outline-white:hover{background:rgba(255,255,255,.12)}
.btn-sm{padding:11px 16px;font-size:14px;border-radius:8px}
.watch{display:inline-flex;align-items:center;gap:8px;text-align:left;line-height:1.35;font-weight:600;font-size:15px;color:var(--orange);cursor:pointer;background:none;border:0;font-family:inherit;padding:0}
.watch .pi{width:26px;height:26px;border-radius:50%;background:var(--orange-tint);display:grid;place-items:center;flex:none;transition:.15s}
.watch .pi svg{width:11px;height:11px;fill:var(--orange);margin-left:2px}
.watch:hover .pi{background:var(--orange)}
.watch:hover .pi svg{fill:#fff}
.watch .arr{transition:.15s}
.watch:hover .arr{transform:translateX(3px)}

/* Nav */
.nav{position:sticky;top:0;z-index:60;background:rgba(255,255,255,.88);backdrop-filter:saturate(180%) blur(14px);border-bottom:1px solid transparent;transition:.2s}
.nav.scrolled{border-color:var(--line)}
.nav-in{display:flex;align-items:center;justify-content:space-between;height:84px;gap:20px}
.logo img{height:68px;width:auto}
.links{display:flex;align-items:center;gap:24px;list-style:none}
.links a{font-size:15px;font-weight:500;color:var(--heading)}
.links a:hover,.links a.on{color:var(--orange)}
.nav-cta{display:flex;gap:10px;align-items:center}
.burger{display:none;background:none;border:0;cursor:pointer;color:var(--ink);padding:6px}
.burger svg{width:26px;height:26px}
.mobile-menu{display:none}

/* Section scaffolding */
.sec{padding:110px 0}
.sec-gray{background:var(--page)}
.eyebrow{font-size:13px;font-weight:700;letter-spacing:.12em;text-transform:uppercase;color:var(--orange);margin-bottom:14px;display:block}
.sec-head{max-width:780px;margin:0 auto 56px;text-align:center}
.sec-head h2{font-size:clamp(30px,4vw,46px);font-weight:800;margin-bottom:16px}
.sec-head p{font-size:19px}
.pill{display:inline-flex;align-items:center;gap:8px;font-size:13px;font-weight:600;color:var(--orange);background:var(--orange-tint);border:1px solid var(--orange-line);padding:6px 12px;border-radius:999px}
.pill .dot{width:6px;height:6px;border-radius:50%;background:var(--orange)}
.tile{width:48px;height:48px;border-radius:12px;display:grid;place-items:center;flex:none}
.tile svg{width:24px;height:24px;fill:none;stroke-width:2;stroke-linecap:round;stroke-linejoin:round}
.t-o{background:var(--orange-tint)}.t-o svg{stroke:var(--orange)}
.t-g{background:var(--green-tint)}.t-g svg{stroke:var(--green)}
.t-b{background:var(--blue-tint)}.t-b svg{stroke:var(--blue)}
.t-p{background:var(--purple-tint)}.t-p svg{stroke:var(--purple)}
.t-t{background:var(--teal-tint)}.t-t svg{stroke:var(--teal)}
.t-r{background:var(--red-tint)}.t-r svg{stroke:var(--red)}

/* App window frame (screenshots + video thumbnails) */
.frame{position:relative;border-radius:14px;background:#fff;border:1px solid var(--line);box-shadow:var(--shadow-lg);overflow:hidden}
.frame-bar{height:36px;display:flex;align-items:center;gap:7px;padding:0 14px;background:#F3F2F6;border-bottom:1px solid var(--line)}
.frame-bar i{width:11px;height:11px;border-radius:50%;background:#DAD8DF}
.frame-bar i:nth-child(1){background:#FF5F57}.frame-bar i:nth-child(2){background:#FEBC2E}.frame-bar i:nth-child(3){background:#28C840}
.frame-url{margin-left:14px;flex:1;max-width:340px;height:22px;border-radius:6px;background:#fff;border:1px solid var(--line);font-size:11.5px;color:var(--muted);display:flex;align-items:center;padding:0 10px;white-space:nowrap;overflow:hidden}
.frame-body{position:relative;aspect-ratio:16/9;background:var(--page);overflow:hidden}
.frame-body>img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;object-position:top left}
.frame.compact .frame-bar{height:26px;padding:0 10px;gap:5px}
.frame.compact .frame-bar i{width:8px;height:8px}
.frame.compact .frame-url{display:none}

/* Fixed-size app preview, scaled by JS to fit (placeholder until real screenshots) */
.mock{position:absolute;left:0;top:0;width:1280px;height:720px;transform-origin:0 0;display:flex;font-size:14px;color:var(--text);text-align:left;line-height:1.4}
.mock-side{width:230px;background:#fff;border-right:1px solid var(--line);padding:24px 18px;display:flex;flex-direction:column;gap:22px}
.mock-brand{display:flex;align-items:center;gap:10px}
.mock-brand img{height:42px;width:auto}
.mock-brand b{font-size:16px;color:var(--heading);line-height:1.1}
.mock-nav{display:flex;flex-direction:column;gap:6px}
.mock-nav span{display:flex;align-items:center;gap:10px;padding:10px 12px;border-radius:6px;font-size:14px;color:var(--heading)}
.mock-nav span::before{content:"";width:14px;height:14px;border:1.6px solid currentColor;border-radius:4px;opacity:.7;flex:none}
.mock-nav span.on{background:var(--orange);color:#fff;box-shadow:0 2px 6px rgba(255,103,0,.35)}
.mock-main{flex:1;padding:22px 26px;display:flex;flex-direction:column;gap:20px;min-width:0}
.mock-top{height:52px;flex:none;background:#fff;border-radius:8px;box-shadow:var(--shadow-sm);display:flex;align-items:center;justify-content:space-between;padding:0 20px}
.mock-top b{font-size:16px;color:var(--heading)}
.mock-top i{width:32px;height:32px;border-radius:50%;background:var(--orange)}
.mock-stats{display:grid;grid-template-columns:repeat(4,1fr);gap:18px;flex:none}
.mock-stat{background:#fff;border-radius:8px;box-shadow:var(--shadow-sm);padding:16px 18px;position:relative;height:112px;display:flex;flex-direction:column;justify-content:space-between}
.mock-stat small{font-size:13px}
.mock-stat strong{font-size:24px;color:var(--heading);font-weight:700}
.mock-stat em{font-style:normal;font-size:12px;color:var(--green);font-weight:600}
.mock-stat em.dn{color:var(--red)}
.mock-stat .ic{position:absolute;right:14px;top:14px;width:32px;height:32px;border-radius:6px}
.mock-row{flex:1;display:grid;grid-template-columns:1.7fr 1fr;gap:18px;min-height:0}
.mock-card{background:#fff;border-radius:8px;box-shadow:var(--shadow-sm);padding:18px 20px;display:flex;flex-direction:column;min-height:0}
.mock-card h5{font-size:15px;color:var(--heading);font-weight:600;margin-bottom:14px}
.bars{flex:1;display:flex;align-items:flex-end;gap:12px;border-bottom:1px solid var(--line)}
.bars i{flex:1;border-radius:4px 4px 0 0;background:linear-gradient(var(--orange),#FFA366)}
.list{display:flex;flex-direction:column;gap:14px}
.list div{display:flex;justify-content:space-between;align-items:center;font-size:14px;color:var(--heading);gap:10px}
.list .tag{font-size:12px;padding:3px 8px;border-radius:4px;font-weight:600;white-space:nowrap}
.tg{background:var(--green-tint);color:#1FA45A}.to{background:var(--orange-tint);color:var(--orange)}.tr{background:var(--red-tint);color:var(--red)}.tb{background:var(--blue-tint);color:var(--blue)}
.mock-text{font-size:14px;color:var(--text);line-height:1.6}
.meter{height:10px;border-radius:99px;background:var(--line);overflow:hidden;margin:6px 0 14px}
.meter i{display:block;height:100%;background:var(--green);border-radius:99px}

/* Video component */
.video{position:relative;cursor:pointer;display:block}
.video .play{position:absolute;inset:36px 0 0 0;display:grid;place-items:center;z-index:3}
.video.compact .play,.video.compact .shade{inset:26px 0 0 0}
.video .play b{width:clamp(56px,7vw,88px);aspect-ratio:1;border-radius:50%;background:rgba(255,255,255,.94);box-shadow:0 10px 30px rgba(47,43,61,.25),0 0 0 10px rgba(255,103,0,.16);display:grid;place-items:center;transition:.2s}
.video.compact .play b{width:52px}
.video .play svg{width:38%;height:38%;fill:var(--orange);margin-left:8%}
.video:hover .play b{transform:scale(1.07)}
.video .meta{position:absolute;left:14px;bottom:14px;z-index:3;display:flex;gap:8px;align-items:center;flex-wrap:wrap}
.video .meta span{background:rgba(47,43,61,.84);color:#fff;font-size:12px;font-weight:600;padding:4px 9px;border-radius:6px}
.video .meta span.soon{background:var(--orange)}
.video .shade{position:absolute;inset:36px 0 0 0;background:linear-gradient(180deg,rgba(255,255,255,0) 45%,rgba(47,43,61,.14));z-index:2;pointer-events:none}
.modal{position:fixed;inset:0;z-index:100;background:rgba(30,28,38,.8);display:none;align-items:center;justify-content:center;padding:60px 20px 20px;backdrop-filter:blur(4px)}
.modal.open{display:flex}
.modal-box{width:min(1100px,100%);background:#000;border-radius:14px;position:relative;box-shadow:var(--shadow-lg)}
.modal-box .ratio{position:relative;aspect-ratio:16/9;border-radius:14px;overflow:hidden}
.modal-box iframe,.modal-box video{position:absolute;inset:0;width:100%;height:100%;border:0}
.modal-close{position:absolute;top:-44px;right:0;background:none;border:0;color:#fff;font:600 15px "Public Sans",sans-serif;cursor:pointer}
.modal-soon{aspect-ratio:16/9;background:#fff;border-radius:14px;display:grid;place-items:center;text-align:center;padding:24px}
.modal-soon h3{font-size:clamp(20px,3vw,28px);margin-bottom:8px}

/* CTA band + footer */
.cta{padding:100px 0;background:radial-gradient(700px 360px at 85% 0%,rgba(255,255,255,.2),transparent 70%),linear-gradient(120deg,#FF6700,#FF8A3D);color:#fff;text-align:center}
.cta h2{color:#fff;font-size:clamp(30px,4.4vw,52px);font-weight:800;margin-bottom:18px}
.cta p{font-size:19px;max-width:760px;margin:0 auto 34px;opacity:.96}
.cta .btns{display:flex;gap:12px;justify-content:center;flex-wrap:wrap}
footer{padding:56px 0 36px;border-top:1px solid var(--line)}
.foot{display:grid;grid-template-columns:auto 1fr;gap:32px 48px;align-items:center}
.foot img{height:132px;width:auto}
.foot nav{display:flex;gap:10px 28px;flex-wrap:wrap;justify-content:flex-end;font-size:15px;font-weight:500;color:var(--heading)}
.foot nav a:hover{color:var(--orange)}
.foot-bottom{grid-column:1/-1;display:flex;justify-content:space-between;gap:12px;flex-wrap:wrap;border-top:1px solid var(--line);padding-top:22px;font-size:14px;color:var(--muted)}
.foot-bottom b{color:var(--orange);font-weight:600}

/* ---------- Responsive (shared) ---------- */
@media (max-width:1080px){
  .links{display:none}
  .burger{display:block}
  .mobile-menu{display:none;position:absolute;top:84px;left:0;right:0;background:#fff;border-bottom:1px solid var(--line);padding:12px 24px 24px;box-shadow:0 20px 30px -20px rgba(47,43,61,.2)}
  .mobile-menu.open{display:flex;flex-direction:column}
  .mobile-menu a{padding:13px 0;font-weight:500;color:var(--heading);border-bottom:1px solid var(--line)}
  .mobile-menu .btn{margin-top:16px;border:0;color:#fff}
}
@media (max-width:900px){
  .links,.nav-cta .btn-secondary{display:none}
  .burger{display:block}
  .mobile-menu{display:none;position:absolute;top:84px;left:0;right:0;background:#fff;border-bottom:1px solid var(--line);padding:12px 24px 24px;box-shadow:0 20px 30px -20px rgba(47,43,61,.2)}
  .mobile-menu.open{display:flex;flex-direction:column}
  .mobile-menu a{padding:13px 0;font-weight:500;color:var(--heading);border-bottom:1px solid var(--line)}
  .mobile-menu .btn{margin-top:16px;border:0;color:#fff}
  .sec{padding:80px 0}
  .foot{grid-template-columns:1fr}
  .foot nav{justify-content:flex-start}
}
@media (max-width:600px){
  body{font-size:16px}
  .wrap{padding:0 16px}
  .nav-in{height:72px}
  .logo img{height:56px}
  .mobile-menu{top:72px;padding:8px 16px 20px}
  .nav-cta .btn-primary{display:none}
  .sec{padding:64px 0}
  .sec-head{margin-bottom:36px}
  .sec-head p{font-size:17px}
  .frame-bar{height:26px;padding:0 10px;gap:5px}
  .frame-bar i{width:8px;height:8px}
  .frame-url{display:none}
  .video .play,.video .shade{inset:26px 0 0 0}
  .cta{padding:72px 0}
  .cta .btns .btn{width:100%}
  .foot img{height:104px}
}