/* ============================================================
   AXION One — flagship product showcase
   near-black + electric cyan/violet + glassmorphism
   ============================================================ */
:root{
  --bg:#05060a;
  --bg-2:#0a0c13;
  --ink:#eef2fb;
  --ink-dim:#9aa3b8;
  --ink-faint:#5f6880;
  --cyan:#22d3ee;
  --violet:#8b5cf6;
  --line:rgba(255,255,255,.09);
  --glass:rgba(255,255,255,.045);
  --glass-brd:rgba(255,255,255,.10);
  --shadow:0 30px 80px -30px rgba(0,0,0,.9);
  --maxw:1200px;
  --disp:"Space Grotesk","Outfit",system-ui,sans-serif;
  --sans:"Outfit","Noto Sans JP",system-ui,sans-serif;
  --jp:"Noto Sans JP",system-ui,sans-serif;
  --mono:"JetBrains Mono",ui-monospace,monospace;
}

*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{
  background:var(--bg);
  color:var(--ink);
  font-family:var(--sans);
  line-height:1.6;
  overflow-x:hidden;
  -webkit-font-smoothing:antialiased;
  letter-spacing:.01em;
}
:lang(ja),p,li,h1,h2,h3{font-family:var(--sans)}
a{color:inherit;text-decoration:none}
img,svg{display:block;max-width:100%}
::selection{background:var(--cyan);color:#02121a}

/* ---------- scroll progress ---------- */
.scroll-progress{
  position:fixed;top:0;left:0;height:3px;width:0%;
  background:linear-gradient(90deg,var(--cyan),var(--violet));
  z-index:120;box-shadow:0 0 14px var(--cyan);
  transition:width .1s linear;
}

/* ---------- loader ---------- */
.loader{
  position:fixed;inset:0;z-index:200;
  background:radial-gradient(120% 120% at 50% 40%,#0b0f1a 0%,var(--bg) 70%);
  display:flex;flex-direction:column;align-items:center;justify-content:center;gap:22px;
  transition:opacity .5s ease,visibility .5s ease;
}
.loader.is-done{opacity:0;visibility:hidden;pointer-events:none}
.loader__mark{
  font-family:var(--disp);font-weight:700;letter-spacing:.5em;
  font-size:clamp(18px,4vw,26px);
  background:linear-gradient(90deg,var(--cyan),var(--violet));
  -webkit-background-clip:text;background-clip:text;color:transparent;
  padding-left:.5em;
}
.loader__bar{width:180px;height:2px;background:rgba(255,255,255,.1);border-radius:2px;overflow:hidden}
.loader__bar span{display:block;height:100%;width:40%;border-radius:2px;
  background:linear-gradient(90deg,var(--cyan),var(--violet));
  animation:load 1s ease-in-out infinite}
@keyframes load{0%{transform:translateX(-120%)}100%{transform:translateX(360%)}}

/* ---------- ambient background ---------- */
.bg-grid{
  position:fixed;inset:0;z-index:-2;pointer-events:none;
  background-image:
    linear-gradient(rgba(255,255,255,.028) 1px,transparent 1px),
    linear-gradient(90deg,rgba(255,255,255,.028) 1px,transparent 1px),
    radial-gradient(rgba(255,255,255,.05) 1px,transparent 1px);
  background-size:52px 52px,52px 52px,26px 26px;
  background-position:center;
  mask-image:radial-gradient(120% 90% at 50% 0%,#000 30%,transparent 85%);
  -webkit-mask-image:radial-gradient(120% 90% at 50% 0%,#000 30%,transparent 85%);
}
.bg-glow{position:fixed;z-index:-1;filter:blur(90px);opacity:.5;pointer-events:none;border-radius:50%}
.bg-glow--cyan{width:44vw;height:44vw;left:-10vw;top:-6vw;background:radial-gradient(circle,rgba(34,211,238,.5),transparent 65%)}
.bg-glow--violet{width:48vw;height:48vw;right:-14vw;top:26vh;background:radial-gradient(circle,rgba(139,92,246,.42),transparent 65%)}

/* ---------- shared ---------- */
.eyebrow{
  display:inline-flex;align-items:center;gap:9px;
  font-family:var(--mono);font-size:11.5px;letter-spacing:.28em;
  text-transform:uppercase;color:var(--ink-dim);margin-bottom:18px;
}
.eyebrow .dot{width:7px;height:7px;border-radius:50%;
  background:var(--cyan);box-shadow:0 0 12px var(--cyan);animation:pulse 2.4s infinite}
@keyframes pulse{0%,100%{opacity:1}50%{opacity:.35}}

.grad{background:linear-gradient(92deg,var(--cyan),var(--violet) 70%);
  -webkit-background-clip:text;background-clip:text;color:transparent}

.section{position:relative;max-width:var(--maxw);margin:0 auto;
  padding:clamp(72px,11vw,140px) clamp(20px,5vw,40px)}
.section__head{max-width:640px;margin-bottom:52px}
.section__head h2{font-family:var(--disp);font-weight:700;line-height:1.08;
  font-size:clamp(28px,5vw,52px);margin-bottom:16px;letter-spacing:-.02em}
.section__head p{color:var(--ink-dim);font-size:clamp(14px,1.5vw,17px);max-width:52ch}

/* ---------- buttons ---------- */
.btn{
  position:relative;display:inline-flex;align-items:center;justify-content:center;
  padding:13px 26px;border-radius:100px;font-weight:600;font-size:14.5px;
  border:1px solid var(--glass-brd);color:var(--ink);
  transition:transform .25s cubic-bezier(.2,.8,.2,1),box-shadow .3s,background .3s,border-color .3s;
  will-change:transform;overflow:hidden;white-space:nowrap;
}
.btn span{position:relative;z-index:2}
.btn--lg{padding:16px 34px;font-size:15.5px}
.btn--primary{
  background:linear-gradient(92deg,var(--cyan),var(--violet));
  color:#04121a;border-color:transparent;font-weight:700;
  box-shadow:0 10px 34px -10px rgba(34,211,238,.6),inset 0 1px 0 rgba(255,255,255,.4);
}
.btn--primary:hover{box-shadow:0 16px 44px -8px rgba(34,211,238,.75)}
.btn--ghost{background:var(--glass);backdrop-filter:blur(8px)}
.btn--ghost:hover{background:rgba(255,255,255,.09);border-color:var(--cyan)}
.btn--magnetic:active{transform:scale(.96)}

/* ---------- nav ---------- */
.nav{
  position:fixed;top:16px;left:50%;transform:translateX(-50%);
  z-index:100;width:min(1120px,calc(100% - 28px));
  display:flex;align-items:center;gap:20px;
  padding:10px 12px 10px 20px;border-radius:100px;
  background:rgba(10,12,19,.55);backdrop-filter:blur(16px) saturate(1.3);
  border:1px solid var(--glass-brd);
  box-shadow:0 10px 40px -18px rgba(0,0,0,.8);
  transition:transform .4s ease,background .4s;
}
.nav.is-hidden{transform:translateX(-50%) translateY(-140%)}
.nav__brand{display:flex;align-items:center;gap:10px;font-family:var(--disp);
  font-weight:700;letter-spacing:.14em;font-size:16px}
.nav__logo{width:16px;height:16px;border-radius:5px;
  background:conic-gradient(from 210deg,var(--cyan),var(--violet),var(--cyan));
  box-shadow:0 0 14px rgba(34,211,238,.7)}
.nav__links{display:flex;gap:26px;margin-left:auto;font-size:14px;color:var(--ink-dim)}
.nav__links a{position:relative;transition:color .25s}
.nav__links a::after{content:"";position:absolute;left:0;bottom:-5px;height:1.5px;width:0;
  background:linear-gradient(90deg,var(--cyan),var(--violet));transition:width .3s}
.nav__links a:hover{color:var(--ink)}
.nav__links a:hover::after{width:100%}
.nav__cta{margin-left:6px}
.nav__cta{background:linear-gradient(92deg,var(--cyan),var(--violet));color:#04121a;
  border-color:transparent;font-weight:700;padding:11px 22px}

/* ---------- hero ---------- */
.hero{position:relative;min-height:100svh;min-height:100vh;
  display:flex;align-items:center;
  padding:120px clamp(20px,5vw,60px) 60px;max-width:var(--maxw);margin:0 auto}
.hero__stage{position:absolute;inset:0;width:100%;height:100%;z-index:1;
  display:block}
.hero__copy{position:relative;z-index:3;max-width:560px}
.hero__title{font-family:var(--disp);font-weight:800;letter-spacing:-.03em;
  line-height:1.02;font-size:clamp(44px,8.5vw,92px);margin-bottom:22px}
.hero__title .line{display:block}
.hero__lede{color:var(--ink-dim);font-size:clamp(15px,1.8vw,19px);
  max-width:40ch;margin-bottom:32px}
.hero__actions{display:flex;flex-wrap:wrap;gap:14px;margin-bottom:44px}
.hero__meta{display:flex;gap:clamp(20px,4vw,44px);flex-wrap:wrap}
.hero__meta div{display:flex;flex-direction:column}
.hero__meta b{font-family:var(--mono);font-size:clamp(20px,3vw,30px);font-weight:700;
  color:var(--ink);line-height:1.1}
.hero__meta b span{font-size:.55em;color:var(--cyan)}
.hero__meta small{font-size:11.5px;color:var(--ink-faint);letter-spacing:.05em;margin-top:4px}
.hero__scrollhint{position:absolute;left:50%;bottom:26px;transform:translateX(-50%);
  z-index:3;display:flex;flex-direction:column;align-items:center;gap:8px;
  font-family:var(--mono);font-size:10px;letter-spacing:.3em;color:var(--ink-faint)}
.hero__scrollhint i{width:1px;height:34px;background:linear-gradient(var(--cyan),transparent);
  animation:scrollpulse 1.8s infinite}
@keyframes scrollpulse{0%{opacity:.2;transform:scaleY(.4)}50%{opacity:1}100%{opacity:.2;transform:scaleY(1);transform-origin:top}}

/* reveal on load (hero — never scroll-gated) */
.reveal-on-load{opacity:0;transform:translateY(24px);
  transition:opacity .9s cubic-bezier(.2,.8,.2,1),transform .9s cubic-bezier(.2,.8,.2,1)}
.reveal-on-load.in{opacity:1;transform:none}

/* reveal on scroll (below-fold only) */
.reveal{opacity:0;transform:translateY(38px);
  transition:opacity .8s cubic-bezier(.2,.8,.2,1),transform .8s cubic-bezier(.2,.8,.2,1)}
.reveal.in{opacity:1;transform:none}

/* ---------- glass ---------- */
.glass{background:var(--glass);border:1px solid var(--glass-brd);
  backdrop-filter:blur(14px) saturate(1.2);border-radius:22px}

/* ---------- specs counters ---------- */
.counters{display:grid;grid-template-columns:repeat(4,1fr);gap:14px;margin-bottom:60px}
.counter{padding:24px 20px;border-radius:18px;background:var(--glass);
  border:1px solid var(--line);position:relative;overflow:hidden}
.counter::before{content:"";position:absolute;top:0;left:0;right:0;height:1px;
  background:linear-gradient(90deg,transparent,var(--cyan),transparent);opacity:.6}
.counter__num{font-family:var(--mono);font-weight:700;
  font-size:clamp(26px,4vw,44px);line-height:1;letter-spacing:-.02em;
  background:linear-gradient(120deg,#fff,var(--cyan));
  -webkit-background-clip:text;background-clip:text;color:transparent}
.counter__num .suffix{font-size:.5em;color:var(--ink-dim);margin-left:3px;
  -webkit-text-fill-color:var(--ink-dim)}
.counter__label{margin-top:12px;font-size:12.5px;color:var(--ink-dim);letter-spacing:.03em}

.cards{display:grid;grid-template-columns:repeat(2,1fr);gap:18px}
.card{padding:30px;border-radius:22px}
.card__icon{width:44px;height:44px;border-radius:12px;margin-bottom:20px;position:relative;
  background:radial-gradient(circle at 30% 25%,rgba(34,211,238,.25),rgba(139,92,246,.18));
  border:1px solid var(--glass-brd)}
.card__icon::after{content:"";position:absolute;inset:11px;
  background:var(--cyan);opacity:.9;
  mask-repeat:no-repeat;mask-position:center;mask-size:contain;
  -webkit-mask-repeat:no-repeat;-webkit-mask-position:center;-webkit-mask-size:contain}
.card__icon[data-ic="chip"]::after{-webkit-mask-image:url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='white' stroke-width='2'><rect x='7' y='7' width='10' height='10' rx='1'/><path d='M9 1v3M15 1v3M9 20v3M15 20v3M1 9h3M1 15h3M20 9h3M20 15h3'/></svg>");mask-image:url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='white' stroke-width='2'><rect x='7' y='7' width='10' height='10' rx='1'/><path d='M9 1v3M15 1v3M9 20v3M15 20v3M1 9h3M1 15h3M20 9h3M20 15h3'/></svg>")}
.card__icon[data-ic="battery"]::after{-webkit-mask-image:url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='white' stroke-width='2'><rect x='2' y='7' width='16' height='10' rx='2'/><path d='M20 10v4M11 9l-2 4h3l-2 4' stroke-linejoin='round'/></svg>");mask-image:url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='white' stroke-width='2'><rect x='2' y='7' width='16' height='10' rx='2'/><path d='M20 10v4M11 9l-2 4h3l-2 4' stroke-linejoin='round'/></svg>")}
.card__icon[data-ic="display"]::after{-webkit-mask-image:url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='white' stroke-width='2'><rect x='6' y='2' width='12' height='20' rx='3'/><path d='M11 18h2'/></svg>");mask-image:url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='white' stroke-width='2'><rect x='6' y='2' width='12' height='20' rx='3'/><path d='M11 18h2'/></svg>")}
.card__icon[data-ic="shield"]::after{-webkit-mask-image:url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='white' stroke-width='2'><path d='M12 2l8 3v6c0 5-3.5 8.5-8 11-4.5-2.5-8-6-8-11V5z' stroke-linejoin='round'/></svg>");mask-image:url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='white' stroke-width='2'><path d='M12 2l8 3v6c0 5-3.5 8.5-8 11-4.5-2.5-8-6-8-11V5z' stroke-linejoin='round'/></svg>")}
.card h3{font-family:var(--disp);font-weight:600;font-size:20px;margin-bottom:10px}
.card p{color:var(--ink-dim);font-size:14px;margin-bottom:18px}
.kv{list-style:none;display:flex;flex-direction:column;gap:8px;
  border-top:1px solid var(--line);padding-top:16px}
.kv li{display:flex;justify-content:space-between;font-size:13px}
.kv span{color:var(--ink-faint)}
.kv b{font-family:var(--mono);color:var(--ink);font-weight:500}

/* ---------- design ---------- */
.design__grid{display:grid;grid-template-columns:1.15fr .85fr;gap:clamp(30px,5vw,64px);align-items:center}
.design__copy h2{font-family:var(--disp);font-weight:700;letter-spacing:-.02em;
  font-size:clamp(28px,5vw,52px);line-height:1.06;margin-bottom:18px}
.design__copy p{color:var(--ink-dim);font-size:clamp(14px,1.6vw,17px);max-width:44ch;margin-bottom:28px}
.swatches{display:flex;gap:12px;margin-bottom:12px}
.swatch{width:40px;height:40px;border-radius:50%;cursor:pointer;
  background:var(--sw);border:2px solid transparent;outline:none;
  box-shadow:inset 0 2px 6px rgba(255,255,255,.25),inset 0 -6px 10px rgba(0,0,0,.4);
  transition:transform .2s,border-color .2s}
.swatch:hover{transform:scale(1.1)}
.swatch.is-active{border-color:var(--cyan);box-shadow:0 0 0 3px rgba(34,211,238,.2),inset 0 2px 6px rgba(255,255,255,.25)}
.swatch__name{font-family:var(--mono);font-size:12.5px;color:var(--ink-dim);letter-spacing:.04em}
.callouts{list-style:none;display:grid;grid-template-columns:1fr 1fr;gap:14px}
.callouts li{display:flex;gap:14px;align-items:center;padding:20px;border-radius:16px;
  background:var(--glass);border:1px solid var(--line)}
.callouts i{width:10px;height:10px;flex:none;border-radius:50%;
  background:radial-gradient(circle,var(--cyan),var(--violet));
  box-shadow:0 0 12px rgba(34,211,238,.7)}
.callouts b{font-family:var(--mono);display:block;font-size:18px;color:var(--ink)}
.callouts span{font-size:12px;color:var(--ink-faint)}

/* ---------- camera ---------- */
.camera__stage{display:grid;grid-template-columns:.9fr 1.1fr;gap:clamp(30px,5vw,60px);align-items:center}
.lens{display:flex;justify-content:center;position:relative}
.lens::before{content:"";position:absolute;inset:-10%;
  background:radial-gradient(circle,rgba(34,211,238,.25),transparent 60%);filter:blur(30px)}
.lens__svg{width:min(360px,80%);position:relative;filter:drop-shadow(0 0 40px rgba(139,92,246,.4))}
.lens__blades{animation:apr 14s ease-in-out infinite;transform-origin:100px 100px}
@keyframes apr{0%,100%{transform:rotate(0) scale(1)}50%{transform:rotate(36deg) scale(.9)}}
.camera__specs{display:grid;grid-template-columns:1fr 1fr;gap:14px}
.cam-spec{padding:22px;border-radius:16px;background:var(--glass);border:1px solid var(--line);
  transition:transform .3s,border-color .3s}
.cam-spec:hover{transform:translateY(-4px);border-color:rgba(34,211,238,.4)}
.cam-spec__k{font-family:var(--mono);font-size:11px;letter-spacing:.2em;text-transform:uppercase;color:var(--cyan)}
.cam-spec__v{display:block;font-family:var(--disp);font-size:22px;font-weight:600;margin:8px 0 6px}
.cam-spec__d{font-size:12.5px;color:var(--ink-dim)}

/* ---------- buy ---------- */
.buy{display:flex;justify-content:center}
.buy__inner{text-align:center;max-width:720px;width:100%;padding:clamp(40px,6vw,72px)}
.buy__inner h2{font-family:var(--disp);font-weight:700;font-size:clamp(30px,5vw,54px);
  letter-spacing:-.02em;margin-bottom:20px}
.buy__price{font-family:var(--mono);font-weight:700;font-size:clamp(38px,7vw,64px);
  line-height:1;margin-bottom:10px;
  background:linear-gradient(120deg,#fff,var(--cyan));
  -webkit-background-clip:text;background-clip:text;color:transparent}
.buy__price small{font-size:.28em;color:var(--ink-dim);-webkit-text-fill-color:var(--ink-dim);margin-left:8px}
.buy__note{color:var(--ink-dim);font-size:14px;margin-bottom:30px}
.buy__actions{display:flex;gap:14px;justify-content:center;flex-wrap:wrap;margin-bottom:28px}
.buy__badges{display:flex;gap:10px;justify-content:center;flex-wrap:wrap}
.buy__badges span{font-family:var(--mono);font-size:11.5px;color:var(--ink-dim);
  padding:8px 14px;border-radius:100px;border:1px solid var(--line);background:rgba(255,255,255,.02)}

/* ---------- footer ---------- */
.footer{border-top:1px solid var(--line);margin-top:40px;
  padding:clamp(48px,7vw,80px) clamp(20px,5vw,40px) 40px;max-width:var(--maxw);margin-inline:auto}
.footer__top{display:flex;justify-content:space-between;gap:40px;flex-wrap:wrap;margin-bottom:48px}
.footer__brand{display:flex;align-items:center;gap:10px;font-family:var(--disp);
  font-weight:700;letter-spacing:.14em;font-size:20px}
.footer__cols{display:flex;gap:clamp(28px,6vw,72px);flex-wrap:wrap}
.footer__cols h4{font-size:12px;letter-spacing:.12em;text-transform:uppercase;color:var(--ink-faint);margin-bottom:14px}
.footer__cols a{display:block;font-size:13.5px;color:var(--ink-dim);margin-bottom:9px;transition:color .2s}
.footer__cols a:hover{color:var(--cyan)}
.footer__bottom{display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;
  border-top:1px solid var(--line);padding-top:24px;font-size:12.5px;color:var(--ink-faint)}
.footer__demo{font-family:var(--mono);color:var(--ink-dim)}

/* ---------- responsive ---------- */
@media (max-width:900px){
  .counters{grid-template-columns:repeat(2,1fr)}
  .cards{grid-template-columns:1fr}
  .design__grid{grid-template-columns:1fr}
  .camera__stage{grid-template-columns:1fr}
  .nav__links{display:none}
  .hero__stage{opacity:.9}
}
@media (max-width:560px){
  .counters{grid-template-columns:1fr 1fr}
  .callouts,.camera__specs{grid-template-columns:1fr}
  .hero__meta{gap:18px}
  .nav{padding:9px 10px 9px 16px}
  .nav__name{display:none}
}

/* ---------- reduced motion ---------- */
@media (prefers-reduced-motion:reduce){
  *{animation-duration:.001ms !important;animation-iteration-count:1 !important;
    transition-duration:.001ms !important;scroll-behavior:auto !important}
  .reveal,.reveal-on-load{opacity:1;transform:none}
  .loader{display:none}
}