/* ============================================================
   OZONE HOME — landing-page design system (shared)
   ink #0B0D10 · paper #F7F8FA · ozone #2E9BFF→#5BE3D7
   ============================================================ */
:root{
  --ink:#0B0D10;--ink-3:#07090C;--paper:#F7F8FA;--card:#FFFFFF;
  --text:#171B21;--muted:#5B6470;--muted-d:rgba(231,239,248,.64);
  --line:rgba(15,19,24,.09);--oz1:#2E9BFF;--oz2:#5BE3D7;
  --grad:linear-gradient(120deg,#2E9BFF 10%,#5BE3D7 90%);
  --ease:cubic-bezier(0.16,1,0.3,1);--r:22px;
  --shadow-card:0 2px 6px rgba(13,18,26,.04),0 18px 44px -18px rgba(13,18,26,.16);
  --shadow-lift:0 6px 14px rgba(13,18,26,.06),0 30px 60px -20px rgba(13,18,26,.22);
}
*,*::before,*::after{box-sizing:border-box}*{margin:0}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{font-family:'Inter',system-ui,-apple-system,'Segoe UI',sans-serif;font-size:16.5px;line-height:1.65;background:var(--paper);color:var(--text);-webkit-font-smoothing:antialiased}
img,svg{display:block;max-width:100%}
a{color:inherit;text-decoration:none}
ul{list-style:none;padding:0}
::selection{background:rgba(46,155,255,.28)}
:focus-visible{outline:2px solid var(--oz1);outline-offset:3px;border-radius:8px}
h1,h2,h3,h4{font-family:'Space Grotesk','Inter',sans-serif;font-weight:600;letter-spacing:-.02em;line-height:1.08}
.grad-text{background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent}
.container{width:min(1140px,100% - clamp(34px,7vw,72px));margin-inline:auto}
.eyebrow{display:inline-flex;align-items:center;gap:11px;font:600 12px/1 'Inter';letter-spacing:.2em;text-transform:uppercase;color:#1D7FE0;margin-bottom:18px}
.eyebrow::before{content:"";width:24px;height:2px;border-radius:2px;background:var(--grad)}

/* buttons */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:10px;height:54px;padding:0 28px;border-radius:999px;font:600 16px/1 'Inter';white-space:nowrap;border:1px solid transparent;transition:transform .5s var(--ease),box-shadow .5s var(--ease),background-color .3s,border-color .3s,color .3s;cursor:pointer}
.btn:hover{transform:translateY(-2px)}
.btn svg{width:18px;height:18px;fill:none;stroke:currentColor;stroke-width:1.8;stroke-linecap:round;stroke-linejoin:round}
.btn-primary{background:var(--grad);color:#04161F;box-shadow:0 10px 30px -10px rgba(46,155,255,.55)}
.btn-primary:hover{box-shadow:0 18px 44px -12px rgba(46,155,255,.65)}
.btn-ghost{border-color:rgba(255,255,255,.2);color:#fff;background:rgba(255,255,255,.04)}
.btn-ghost:hover{background:rgba(255,255,255,.09)}
.btn-line{border-color:rgba(15,19,24,.18);color:var(--text)}
.btn-line:hover{border-color:var(--text)}

/* nav */
.lpnav{position:sticky;top:0;z-index:50;background:rgba(11,13,16,.82);-webkit-backdrop-filter:blur(18px) saturate(1.5);backdrop-filter:blur(18px) saturate(1.5);border-bottom:1px solid rgba(255,255,255,.08)}
.lpnav-in{height:68px;display:flex;align-items:center;gap:18px}
.lpbrand{display:flex;align-items:center;gap:11px;color:#fff}
.lpbrand svg{width:28px;height:28px}
.lpbrand b{font-family:'Space Grotesk';font-size:20px;font-weight:700;letter-spacing:.1em}
.lpbrand b i{font-style:normal;font-weight:500;font-size:11px;letter-spacing:.32em;color:rgba(255,255,255,.55)}
.lpnav-cta{margin-inline-start:auto;display:flex;align-items:center;gap:10px}
.lpnav .btn{height:43px;padding:0 20px;font-size:14.5px}
.lpnav-call{color:rgba(255,255,255,.85);font-weight:600;font-size:15px;display:inline-flex;align-items:center;gap:8px}
.lpnav-call:hover{color:var(--oz2)}
@media(max-width:620px){.lpnav-call span{display:none}.lpbrand b i{display:none}}

/* hero */
.lphero{position:relative;background:var(--ink);color:#fff;overflow:clip;padding:clamp(58px,9vw,104px) 0 clamp(64px,9vw,108px)}
.lphero::before{content:"";position:absolute;inset:0;pointer-events:none;background:radial-gradient(50% 50% at 85% 0%,rgba(46,155,255,.20),transparent 65%),radial-gradient(45% 55% at 5% 100%,rgba(91,227,215,.13),transparent 65%)}
.lphero .container{position:relative}
.lphero .crumb{font-size:13px;color:rgba(255,255,255,.5);margin-bottom:18px}
.lphero .crumb a:hover{color:#fff}
.lphero h1{color:#fff;font-size:clamp(34px,5.6vw,62px);max-width:16ch}
.lphero p{font-size:clamp(17px,2vw,20px);color:var(--muted-d);max-width:54ch;margin:22px 0 32px}
.lphero-cta{display:flex;gap:13px;flex-wrap:wrap}
.lptrust{display:flex;flex-wrap:wrap;gap:10px 22px;margin-top:30px;font-size:14px;color:rgba(255,255,255,.7)}
.lptrust span{display:inline-flex;align-items:center;gap:8px}
.lptrust svg{width:17px;height:17px;color:var(--oz2);fill:none;stroke:currentColor;stroke-width:1.8;stroke-linecap:round;stroke-linejoin:round}

/* sections */
.sec{padding:clamp(56px,8vw,96px) 0}
.sec-head{max-width:680px;margin-bottom:clamp(34px,5vw,52px)}
.sec-head h2{font-size:clamp(28px,4vw,44px)}
.sec-head p{color:var(--muted);font-size:17px;margin-top:14px}
.sec-dark{background:var(--ink);color:#fff}
.sec-dark .sec-head h2{color:#fff}
.sec-dark .sec-head p{color:var(--muted-d)}

/* feature cards */
.grid3{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
.grid2{display:grid;grid-template-columns:repeat(2,1fr);gap:18px}
.fcard{background:var(--card);border:1px solid var(--line);border-radius:var(--r);padding:30px 26px;box-shadow:var(--shadow-card);transition:transform .5s var(--ease),box-shadow .5s var(--ease)}
.fcard:hover{transform:translateY(-6px);box-shadow:var(--shadow-lift)}
.fcard .ic{width:50px;height:50px;border-radius:15px;display:grid;place-items:center;color:#0E5FA8;background:linear-gradient(135deg,rgba(46,155,255,.13),rgba(91,227,215,.13));border:1px solid rgba(46,155,255,.2);margin-bottom:16px}
.fcard .ic svg{width:24px;height:24px;fill:none;stroke:currentColor;stroke-width:1.6;stroke-linecap:round;stroke-linejoin:round}
.fcard h3{font-size:19px;margin-bottom:9px}
.fcard p{color:var(--muted);font-size:14.8px;line-height:1.6}

/* problem / checklist */
.checks{display:grid;grid-template-columns:1fr 1fr;gap:11px 26px}
.checks li{display:grid;grid-template-columns:auto 1fr;gap:12px;align-items:start;padding:13px 0;border-bottom:1px solid var(--line);font-weight:600;font-size:15.3px}
.checks li svg{width:21px;height:21px;color:var(--oz1);fill:none;stroke:currentColor;stroke-width:1.8;stroke-linecap:round;stroke-linejoin:round;margin-top:1px}
.checks li small{grid-column:2;font-weight:400;color:var(--muted);font-size:12.7px;margin-top:2px;line-height:1.45}

/* chips (areas/brands) */
.chips{display:flex;flex-wrap:wrap;gap:9px}
.chips li{padding:9px 16px;border-radius:999px;font:600 14px 'Inter';background:rgba(15,19,24,.04);border:1px solid var(--line);color:var(--text)}
.sec-dark .chips li{background:rgba(255,255,255,.05);border-color:rgba(255,255,255,.12);color:rgba(255,255,255,.88)}

/* FAQ */
.faq{display:grid;gap:12px;max-width:820px}
.faq details{background:var(--card);border:1px solid var(--line);border-radius:16px;padding:4px 22px;box-shadow:var(--shadow-card)}
.faq summary{cursor:pointer;list-style:none;padding:18px 0;font:600 17px 'Inter';display:flex;justify-content:space-between;align-items:center;gap:14px}
.faq summary::-webkit-details-marker{display:none}
.faq summary::after{content:"+";font-size:24px;color:var(--oz1);font-weight:400;transition:transform .3s}
.faq details[open] summary::after{transform:rotate(45deg)}
.faq p{padding:0 0 20px;color:var(--muted);font-size:15.3px;line-height:1.66}

/* CTA band */
.cta{position:relative;text-align:center;overflow:clip}
.cta::before{content:"";position:absolute;inset:0;background:radial-gradient(56% 70% at 50% 110%,rgba(46,155,255,.22),transparent 70%)}
.cta .container{position:relative}
.cta h2{color:#fff;font-size:clamp(30px,4.4vw,50px);max-width:16ch;margin-inline:auto}
.cta p{color:var(--muted-d);margin:18px auto 32px;max-width:52ch}
.cta-row{display:flex;gap:13px;justify-content:center;flex-wrap:wrap}

/* footer */
.lpfoot{background:var(--ink-3);color:rgba(255,255,255,.6);padding:54px 0 40px;border-top:1px solid rgba(255,255,255,.07)}
.lpfoot-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr;gap:34px;margin-bottom:34px}
.lpfoot b.fb{font-family:'Space Grotesk';font-size:19px;font-weight:700;letter-spacing:.08em;color:#fff;display:block;margin-bottom:14px}
.lpfoot a{color:rgba(255,255,255,.62)}
.lpfoot a:hover{color:#fff}
.lpfoot h4{color:#fff;font-size:13px;letter-spacing:.1em;text-transform:uppercase;margin-bottom:14px}
.lpfoot li{margin-bottom:10px;font-size:14.5px}
.lpfoot-links{display:grid;gap:10px}
.lpfoot-base{border-top:1px solid rgba(255,255,255,.08);padding-top:22px;font-size:12.5px;color:rgba(255,255,255,.4);display:flex;flex-wrap:wrap;gap:8px 20px;justify-content:space-between}

/* whatsapp FAB */
.wa-fab{position:fixed;z-index:60;right:clamp(16px,2.4vw,28px);bottom:calc(24px + env(safe-area-inset-bottom));display:flex;align-items:center;height:60px;border-radius:999px;background:linear-gradient(145deg,#27D367,#0E8F4F);color:#fff;box-shadow:0 16px 38px -10px rgba(14,143,79,.6);transition:transform .4s var(--ease)}
.wa-fab:hover{transform:translateY(-3px)}
.wa-fab .ic{width:60px;height:60px;display:grid;place-items:center}
.wa-fab .ic svg{width:30px;height:30px;fill:#fff}
.wa-fab .tx{max-width:0;overflow:hidden;white-space:nowrap;opacity:0;font:600 15.5px 'Inter';transition:max-width .45s var(--ease),opacity .35s,padding .45s var(--ease)}
@media(hover:hover){.wa-fab:hover .tx{max-width:180px;opacity:1;padding-inline-end:22px}}

/* responsive */
@media(max-width:860px){.grid3{grid-template-columns:1fr 1fr}.lpfoot-grid{grid-template-columns:1fr 1fr}}
@media(max-width:620px){.grid3,.grid2,.checks{grid-template-columns:1fr}.lphero-cta .btn,.cta-row .btn{flex:1 1 auto}.lpfoot-grid{grid-template-columns:1fr}}