/* ===== ZILLION — premium electric-scooter showcase ===== */
:root{
  --bg:#080b0f; --bg2:#0e141b; --card:#121a22; --card2:#16202b; --line:#1f2c38;
  --txt:#eef3f7; --muted:#90a0b0; --accent:#00e58a; --accent2:#19d3ff;
  --grad:linear-gradient(100deg,#00e58a,#19d3ff); --hh:68px;
}
*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth;scroll-padding-top:80px}
body{background:var(--bg);color:var(--txt);font-family:'Segoe UI',system-ui,-apple-system,Arial,sans-serif;line-height:1.6;-webkit-font-smoothing:antialiased;overflow-x:hidden}
a{color:inherit;text-decoration:none}
h1,h2,h3{line-height:1.1;letter-spacing:-.02em}
.z-grad{background:var(--grad);-webkit-background-clip:text;background-clip:text;-webkit-text-fill-color:transparent}
.z-muted{color:var(--muted)}
.z-eyebrow{display:inline-block;color:var(--accent);font-size:13px;font-weight:800;letter-spacing:3px;text-transform:uppercase;margin-bottom:10px}

/* buttons */
.z-btn{display:inline-flex;align-items:center;gap:7px;font-weight:700;font-size:14px;padding:11px 20px;border-radius:40px;border:1px solid transparent;cursor:pointer;transition:.18s;white-space:nowrap}
.z-btn-accent{background:var(--grad);color:#04140d;box-shadow:0 6px 22px rgba(0,229,138,.28)}
.z-btn-accent:hover{transform:translateY(-2px);box-shadow:0 10px 28px rgba(0,229,138,.4)}
.z-btn-ghost{border-color:var(--line);color:var(--txt);background:rgba(255,255,255,.02)}
.z-btn-ghost:hover{border-color:var(--accent);color:var(--accent)}
.z-btn-lg{padding:14px 28px;font-size:15px}

/* header */
.z-header{position:sticky;top:0;z-index:100;background:rgba(8,11,15,.72);backdrop-filter:blur(14px);border-bottom:1px solid transparent;transition:.2s}
.z-header.scrolled{border-bottom-color:var(--line);background:rgba(8,11,15,.92)}
.z-header-inner{max-width:1200px;margin:0 auto;height:var(--hh);display:flex;align-items:center;gap:22px;padding:0 24px}
.z-logo{font-size:23px;font-weight:900;letter-spacing:1px;display:inline-flex;align-items:center}
.z-logo .z-bolt{color:var(--accent);margin-right:3px}
.z-logo .z-i{background:var(--grad);-webkit-background-clip:text;background-clip:text;-webkit-text-fill-color:transparent}
.z-nav{display:flex;gap:24px;margin-left:18px}
.z-nav a{font-size:14px;font-weight:600;color:var(--muted);transition:.15s}
.z-nav a:hover,.z-nav a.active{color:var(--txt)}
.z-head-cta{margin-left:auto;display:flex;gap:10px}
.z-burger{display:none;margin-left:auto;background:none;border:none;color:var(--txt);font-size:24px;cursor:pointer}

/* hero */
.z-hero{position:relative;overflow:hidden;border-bottom:1px solid var(--line)}
.z-hero-bg{position:absolute;inset:0;background:
  radial-gradient(60% 70% at 78% 30%,rgba(0,229,138,.18),transparent 60%),
  radial-gradient(50% 60% at 20% 80%,rgba(25,211,255,.14),transparent 60%),var(--bg)}
.z-hero-inner{position:relative;max-width:1200px;margin:0 auto;padding:70px 24px 60px;display:grid;grid-template-columns:1.05fr .95fr;gap:30px;align-items:center}
.z-badge{display:inline-block;background:rgba(0,229,138,.1);border:1px solid rgba(0,229,138,.3);color:var(--accent);font-size:12.5px;font-weight:700;padding:7px 14px;border-radius:30px;margin-bottom:20px}
.z-hero h1{font-size:60px;font-weight:900;margin-bottom:18px}
.z-hero-text>p{font-size:17px;color:var(--muted);max-width:520px;margin-bottom:28px}
.z-hero-cta{display:flex;gap:12px;flex-wrap:wrap}
.z-hero-stats{display:flex;gap:34px;margin-top:40px}
.z-hero-stats b{font-size:34px;font-weight:900;display:block;line-height:1}
.z-hero-stats b span{font-size:15px;color:var(--muted);font-weight:600;margin-left:2px}
.z-hero-stats small{color:var(--muted);font-size:12.5px;letter-spacing:.5px}
.z-hero-art{display:flex;align-items:center;justify-content:center}
.z-hero-scooter{width:100%;max-width:520px;aspect-ratio:220/130;filter:drop-shadow(0 30px 40px rgba(0,229,138,.18));animation:zfloat 5s ease-in-out infinite}
@keyframes zfloat{0%,100%{transform:translateY(0)}50%{transform:translateY(-12px)}}

/* sections */
.z-section{max-width:1200px;margin:0 auto;padding:84px 24px}
.z-section-alt{background:var(--bg2);max-width:none}
.z-section-alt>*{max-width:1200px;margin-left:auto;margin-right:auto}
.z-section-head{text-align:center;max-width:640px;margin:0 auto 44px}
.z-section-head h2{font-size:42px;font-weight:900;margin-bottom:12px}
.z-section-head p{color:var(--muted);font-size:16px}

/* model cards */
.z-models{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}
.z-card{background:var(--card);border:1px solid var(--line);border-radius:18px;overflow:hidden;transition:.2s;display:flex;flex-direction:column}
.z-card:hover{transform:translateY(-6px);border-color:var(--accent);box-shadow:0 18px 40px rgba(0,0,0,.4)}
.z-card-img{position:relative;height:170px;display:flex;align-items:center;justify-content:center;padding:18px;
  background:radial-gradient(70% 90% at 50% 30%,color-mix(in srgb,var(--a) 22%,transparent),transparent 70%),var(--card2)}
.z-card-tag{position:absolute;top:12px;left:12px;font-size:10.5px;font-weight:800;letter-spacing:1px;text-transform:uppercase;color:var(--a);background:rgba(0,0,0,.35);border:1px solid color-mix(in srgb,var(--a) 45%,transparent);padding:4px 10px;border-radius:20px}
.z-scooter{width:80%;height:80%}
.z-card-body{padding:18px 18px 20px;flex:1;display:flex;flex-direction:column}
.z-card-body h3{font-size:19px;font-weight:800;margin-bottom:5px}
.z-card-blurb{font-size:13px;color:var(--muted);margin-bottom:14px;flex:1}
.z-card-meta{display:flex;gap:14px;font-size:12.5px;color:var(--muted);margin-bottom:14px}
.z-card-foot{display:flex;justify-content:space-between;align-items:center;border-top:1px solid var(--line);padding-top:14px}
.z-price{font-size:20px;font-weight:900}.z-price small{color:var(--muted);font-weight:600;font-size:12px}
.z-view{color:var(--accent);font-weight:700;font-size:13px}
.z-fineprint{text-align:center;color:var(--muted);font-size:12px;margin-top:24px}

/* features */
.z-features{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
.z-feat{background:var(--card);border:1px solid var(--line);border-radius:16px;padding:26px 22px;transition:.18s}
.z-feat:hover{border-color:var(--accent)}
.z-feat-i{font-size:30px;margin-bottom:12px}
.z-feat h3{font-size:17px;font-weight:800;margin-bottom:7px}
.z-feat p{font-size:14px;color:var(--muted)}

/* about strip */
.z-about-strip{background:
  linear-gradient(120deg,rgba(0,229,138,.07),rgba(25,211,255,.05)),var(--bg2);border-block:1px solid var(--line)}
.z-about-inner{max-width:1100px;margin:0 auto;padding:72px 24px;display:grid;grid-template-columns:1.1fr .9fr;gap:40px;align-items:center}
.z-about-inner h2{font-size:38px;font-weight:900;margin:6px 0 16px}
.z-about-inner p{color:var(--muted);font-size:16px;margin-bottom:24px}
.z-about-badges{display:grid;grid-template-columns:1fr 1fr;gap:14px}
.z-mini{background:var(--card);border:1px solid var(--line);border-radius:14px;padding:20px;text-align:center}
.z-mini b{font-size:26px;font-weight:900;display:block;background:var(--grad);-webkit-background-clip:text;background-clip:text;-webkit-text-fill-color:transparent}
.z-mini small{color:var(--muted);font-size:13px}

/* cta */
.z-cta{text-align:center;padding:84px 24px;background:radial-gradient(60% 100% at 50% 0%,rgba(0,229,138,.12),transparent 70%)}
.z-cta h2{font-size:38px;font-weight:900;margin-bottom:10px}
.z-cta p{color:var(--muted);font-size:16px;margin-bottom:26px}

/* page hero (about/contact) */
.z-page-hero{max-width:900px;margin:0 auto;padding:70px 24px 30px;text-align:center}
.z-page-hero h1{font-size:48px;font-weight:900;margin-top:6px}
.z-page-sub{color:var(--muted);font-size:17px;margin-top:14px;max-width:560px;margin-inline:auto}

/* prose (about) */
.z-prose{max-width:780px;margin:0 auto;padding:20px 24px 80px}
.z-prose>p{font-size:17px;color:#cdd7e0;margin-bottom:18px}
.z-prose a{color:var(--accent)}
.z-values{display:grid;grid-template-columns:1fr 1fr;gap:16px;margin:40px 0}
.z-value{background:var(--card);border:1px solid var(--line);border-radius:14px;padding:22px}
.z-value span{font-size:26px}.z-value h3{font-size:17px;font-weight:800;margin:8px 0 5px}.z-value p{font-size:14px;color:var(--muted)}
.z-cta-inline{text-align:center;margin-top:40px}
.z-cta-inline h2{font-size:28px;font-weight:900;margin-bottom:16px}

/* model detail */
.z-model-wrap{max-width:1100px;margin:0 auto;padding:30px 24px 80px}
.z-back{color:var(--muted);font-size:14px;font-weight:600}.z-back:hover{color:var(--accent)}
.z-model{display:grid;grid-template-columns:1.05fr .95fr;gap:34px;align-items:center;margin:24px 0 50px}
.z-model-hero{position:relative;border:1px solid var(--line);border-radius:22px;height:360px;display:flex;align-items:center;justify-content:center;padding:30px;
  background:radial-gradient(70% 80% at 50% 35%,color-mix(in srgb,var(--a) 26%,transparent),transparent 70%),var(--card2)}
.z-scooter-lg{width:88%;height:78%}
.z-model-info h1{font-size:42px;font-weight:900}
.z-model-blurb{color:var(--muted);font-size:17px;margin:12px 0 20px}
.z-model-price{font-size:30px;font-weight:900;margin-bottom:8px}.z-model-price small{font-size:14px;color:var(--muted);font-weight:600}
.z-colors{display:flex;align-items:center;gap:8px;margin:18px 0 26px}
.z-colors-lbl{font-size:13px;color:var(--muted);margin-right:6px}
.z-swatch{width:24px;height:24px;border-radius:50%;border:2px solid var(--line);display:inline-block}
.z-model-cta{display:flex;gap:12px;flex-wrap:wrap}
.z-specs-block h2,.z-othermodels h2{font-size:28px;font-weight:900;margin-bottom:20px}
.z-specs{display:grid;grid-template-columns:repeat(4,1fr);gap:12px;margin-bottom:8px}
.z-spec{background:var(--card);border:1px solid var(--line);border-radius:12px;padding:16px}
.z-spec span{display:block;font-size:12px;color:var(--muted);margin-bottom:4px}.z-spec b{font-size:16px;font-weight:800}
.z-othermodels{margin-top:60px}

/* contact */
.z-contact{max-width:1000px;margin:0 auto;padding:20px 24px 90px}
.z-contact-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:16px}
.z-contact-card{background:var(--card);border:1px solid var(--line);border-radius:16px;padding:26px;transition:.18s;display:block}
.z-contact-card:hover{transform:translateY(-4px);border-color:color-mix(in srgb,var(--a) 60%,var(--line))}
.z-contact-static{cursor:default}
.z-cc-i{width:52px;height:52px;border-radius:14px;display:flex;align-items:center;justify-content:center;font-size:24px;margin-bottom:14px;background:color-mix(in srgb,var(--a) 16%,transparent);border:1px solid color-mix(in srgb,var(--a) 40%,transparent)}
.z-contact-card h3{font-size:15px;color:var(--muted);font-weight:700;margin-bottom:4px}
.z-contact-card b{font-size:20px;font-weight:800;display:block}
.z-contact-card span{font-size:13px;color:var(--muted)}

/* footer */
.z-footer{background:#060809;border-top:1px solid var(--line);padding:54px 24px 26px}
.z-footer-grid{max-width:1200px;margin:0 auto;display:grid;grid-template-columns:1.6fr 1fr 1fr 1.3fr;gap:30px}
.z-footer-grid h4{font-size:12px;text-transform:uppercase;letter-spacing:1.5px;color:var(--muted);margin-bottom:14px}
.z-footer-grid a{display:block;color:#aab6c2;font-size:14px;margin-bottom:9px;transition:.15s}
.z-footer-grid a:hover{color:var(--accent)}
.z-footer-grid p{font-size:13px;color:var(--muted);max-width:260px}
.z-footer-bottom{max-width:1200px;margin:34px auto 0;padding-top:20px;border-top:1px solid var(--line);display:flex;justify-content:space-between;font-size:12.5px;color:var(--muted)}
.z-loading{text-align:center;padding:80px;color:var(--muted)}

/* responsive */
@media(max-width:920px){
  .z-hero-inner,.z-about-inner,.z-model{grid-template-columns:1fr}
  .z-hero-art{order:-1}.z-hero-scooter{max-width:380px;margin:0 auto}
  .z-hero h1{font-size:46px}
  .z-models{grid-template-columns:1fr 1fr}
  .z-features{grid-template-columns:1fr 1fr}
  .z-specs{grid-template-columns:1fr 1fr}
}
@media(max-width:680px){
  .z-nav{display:none;position:absolute;top:var(--hh);left:0;right:0;background:var(--bg2);border-bottom:1px solid var(--line);flex-direction:column;gap:0;padding:8px 0}
  .z-nav.open{display:flex}.z-nav a{padding:12px 24px}
  .z-head-cta{display:none}.z-burger{display:block}
  .z-hero h1{font-size:38px}.z-section-head h2,.z-cta h2,.z-about-inner h2{font-size:30px}
  .z-models,.z-features,.z-about-badges,.z-values,.z-contact-grid,.z-specs{grid-template-columns:1fr}
  .z-hero-stats{gap:22px}.z-footer-grid{grid-template-columns:1fr 1fr}
  .z-section{padding:60px 20px}
}