*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
:root{
  --bg:#07080a;
  --bg-2:#0c0e11;
  --ink:#f3f4f6;
  --muted:#8b909a;
  --faint:#5a5f68;
  --line:rgba(255,255,255,.10);
  --line-2:rgba(255,255,255,.06);
  --accent:#ff5a1f;
  --accent-soft:rgba(255,90,31,.16);
  --serif: 'Times New Roman', Times, serif;
  --mono: 'Space Mono', monospace;
  --body: 'Inter', sans-serif;
  --ease: cubic-bezier(.22,1,.36,1);
}
html{scroll-behavior:auto}
body{
  background:
    radial-gradient(130% 90% at 50% 118%, rgba(255,90,31,.12), transparent 52%),
    radial-gradient(90% 70% at 78% 10%, rgba(120,150,200,.05), transparent 60%),
    linear-gradient(180deg,#0c0d10 0%,#07080a 55%);
  background-attachment:fixed;
  color:var(--ink);
  font-family:var(--body);
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
  line-height:1.5;
}
a{color:inherit;text-decoration:none}
::selection{background:var(--accent);color:#04060a}

/* ---------- 3D stage ---------- */
#stage{position:fixed;inset:0;width:100vw;height:100vh;z-index:0;display:block;touch-action:none;transition:opacity .5s ease}
#vignette{position:fixed;inset:0;z-index:1;pointer-events:none;
  background:radial-gradient(125% 90% at 50% 42%, transparent 52%, rgba(0,0,0,.30) 78%, rgba(0,0,0,.62) 100%)}
#grain{
  position:fixed;inset:0;z-index:1;pointer-events:none;opacity:.05;
  background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='120' height='120'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='.9' numOctaves='2'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
  mix-blend-mode:overlay;
}

/* ---------- Loader ---------- */
#loader{
  position:fixed;inset:0;z-index:100;background:var(--bg);
  display:flex;flex-direction:column;align-items:center;justify-content:center;gap:26px;
  transition:opacity .8s var(--ease),visibility .8s;
}
#loader.done{opacity:0;visibility:hidden}
.loader-mark{font-family:var(--serif);font-weight:700;letter-spacing:.5em;font-size:clamp(1rem,3vw,1.6rem);padding-left:.5em;
  background:linear-gradient(90deg,var(--faint),var(--ink),var(--faint));background-size:200% 100%;
  -webkit-background-clip:text;background-clip:text;color:transparent;animation:shine 2.4s linear infinite}
@keyframes shine{to{background-position:-200% 0}}
.loader-bar{width:min(240px,60vw);height:1px;background:var(--line);overflow:hidden}
.loader-bar span{display:block;height:100%;width:0;background:var(--ink)}
.loader-pct{font-family:var(--mono);font-size:.72rem;color:var(--muted);letter-spacing:.1em}

/* ---------- Nav ---------- */
#nav{
  position:fixed;top:0;left:0;right:0;z-index:40;
  display:flex;align-items:center;justify-content:space-between;
  padding:22px clamp(20px,4vw,52px);
  transition:background .4s,backdrop-filter .4s,border-color .4s,padding .4s;
  border-bottom:1px solid transparent;
}
#nav.scrolled{background:rgba(7,8,10,.6);backdrop-filter:blur(14px);border-bottom-color:var(--line-2);padding-top:16px;padding-bottom:16px}
.brand{display:flex;align-items:center;gap:11px;font-family:var(--serif);font-weight:700;letter-spacing:.28em;font-size:.9rem;padding-left:.28em}
.brand-mark{width:19px;height:19px;fill:var(--accent)}
.nav-links{display:flex;gap:34px}
.nav-links a{font-size:.82rem;color:var(--muted);letter-spacing:.02em;transition:color .3s;position:relative}
.nav-links a:hover{color:var(--ink)}
.nav-links a::after{content:'';position:absolute;left:0;bottom:-5px;width:0;height:1px;background:var(--accent);transition:width .35s var(--ease)}
.nav-links a:hover::after{width:100%}

.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  font-size:.8rem;font-weight:500;letter-spacing:.04em;
  padding:11px 22px;border-radius:100px;border:1px solid var(--line);
  color:var(--ink);cursor:pointer;transition:all .35s var(--ease);white-space:nowrap;
  background:transparent;
}
.btn-nav:hover{border-color:var(--ink);background:var(--ink);color:#06070a}
.btn-solid{background:var(--ink);color:#06070a;border-color:var(--ink);font-weight:600}
.btn-solid:hover{background:var(--accent);border-color:var(--accent);color:#04060a}

/* ---------- Layout primitives ---------- */
main{position:relative;z-index:2}
section{position:relative}
.eyebrow{font-family:var(--body);font-weight:500;font-size:.72rem;letter-spacing:.24em;text-transform:uppercase;color:var(--accent)}
.display{font-family:var(--serif);font-weight:700;line-height:1.0;letter-spacing:-.015em;
  font-size:clamp(2.3rem,6.4vw,5rem)}
.display.xl{font-size:clamp(2.8rem,9.5vw,6.8rem)}
.lead{font-size:clamp(1rem,1.4vw,1.18rem);color:var(--muted);max-width:46ch;line-height:1.65}
.lead.center{margin-inline:auto;text-align:center}
.section-head{display:flex;align-items:center;gap:16px;margin-bottom:26px}
.idx{font-family:var(--mono);font-size:.72rem;color:var(--faint);border:1px solid var(--line);border-radius:100px;padding:4px 10px}

/* ---------- Hero ---------- */
:root{--tnr:'Times New Roman',Times,serif}
.hero{min-height:100svh;position:relative;display:flex;flex-direction:column;justify-content:flex-end;
  padding:0 clamp(20px,5vw,64px) clamp(44px,6vh,80px)}

/* decorative background: watermark + corner HUD */
.hero-deco{position:absolute;inset:0;z-index:1;pointer-events:none;overflow:hidden}
.hero-watermark{position:absolute;right:-2vw;top:44%;transform:translateY(-50%);
  font-family:var(--tnr);font-weight:700;font-size:min(58vh,44vw);line-height:.8;color:transparent;
  -webkit-text-stroke:1px rgba(255,255,255,.05);letter-spacing:-.04em;user-select:none}
.corner{position:absolute;width:34px;height:34px;opacity:.5}
.corner::before,.corner::after{content:'';position:absolute;background:var(--line)}
.corner::before{width:100%;height:1px}.corner::after{height:100%;width:1px}
.corner.tl{top:96px;left:clamp(20px,5vw,64px)}.corner.tl::before{top:0;left:0}.corner.tl::after{top:0;left:0}
.corner.tr{top:96px;right:clamp(20px,5vw,64px)}.corner.tr::before{top:0;right:0}.corner.tr::after{top:0;right:0}
.corner.bl{bottom:34px;left:clamp(20px,5vw,64px)}.corner.bl::before{bottom:0;left:0}.corner.bl::after{bottom:0;left:0}
.corner.br{bottom:34px;right:clamp(20px,5vw,64px)}.corner.br::before{bottom:0;right:0}.corner.br::after{bottom:0;right:0}

/* top tags */
.hero-top{position:absolute;top:100px;left:clamp(20px,5vw,64px);right:clamp(20px,5vw,64px);z-index:3;
  display:flex;justify-content:space-between;gap:14px}
.chip{display:inline-flex;align-items:center;gap:9px;font-family:var(--body);font-size:.7rem;
  letter-spacing:.14em;text-transform:uppercase;color:var(--muted);
  border:1px solid var(--line);border-radius:100px;padding:7px 15px;background:rgba(8,9,11,.35);backdrop-filter:blur(8px)}
.chip .dotmark{width:6px;height:6px;border-radius:50%;background:var(--accent);box-shadow:0 0 10px var(--accent)}

/* copy */
.hero-copy{position:relative;z-index:3;max-width:min(900px,92vw)}
.hero-copy .eyebrow{display:inline-flex;align-items:center;gap:10px;margin-bottom:.7em;
  font-family:var(--body);font-size:.76rem;letter-spacing:.28em;text-transform:uppercase;color:var(--ink)}
.eyebrow .sq{width:9px;height:9px;background:var(--accent);display:inline-block}
.hero-title{font-family:var(--tnr);font-weight:700;line-height:.82;letter-spacing:-.02em;
  font-size:clamp(6rem,26vw,20rem);margin:-.02em 0 .08em -.03em;
  background:linear-gradient(180deg,#ffffff 0%,#c9ccd2 100%);-webkit-background-clip:text;background-clip:text;color:transparent}
.hero-model{font-family:var(--body);font-size:.82rem;letter-spacing:.22em;text-transform:uppercase;color:var(--muted);margin-bottom:1.1em}
.hero-model span{color:var(--faint);font-size:.7em;vertical-align:super}
.hero-sub{font-family:var(--tnr);font-style:italic;font-size:clamp(1.3rem,2.6vw,2rem);color:var(--ink);opacity:.9;line-height:1.25;max-width:22ch}
.hero-specs{display:flex;align-items:flex-end;gap:clamp(18px,3vw,40px);margin-top:clamp(26px,4vh,44px)}
.hero-specs div{display:flex;flex-direction:column;gap:5px}
.hero-specs b{font-family:var(--tnr);font-weight:700;font-size:clamp(1.9rem,4vw,3rem);line-height:.9;letter-spacing:-.02em;color:var(--ink)}
.hero-specs b i{font-style:normal;font-size:.5em;color:var(--muted);margin-left:1px}
.hero-specs span{font-family:var(--body);font-size:.68rem;letter-spacing:.14em;text-transform:uppercase;color:var(--faint)}
.hero-specs .sep{width:1px;height:42px;background:var(--line);margin-bottom:4px}

/* vertical side label */
.hero-side{position:absolute;right:clamp(20px,5vw,64px);top:50%;transform:translateY(-50%);z-index:3;
  writing-mode:vertical-rl;font-family:var(--body);font-size:.66rem;letter-spacing:.32em;
  text-transform:uppercase;color:var(--faint)}

/* scroll cue */
.hero-scroll{position:absolute;left:50%;transform:translateX(-50%);bottom:clamp(30px,4vh,50px);z-index:3;
  display:flex;flex-direction:column;align-items:center;gap:11px;color:var(--faint);
  font-family:var(--body);font-size:.62rem;letter-spacing:.28em;text-transform:uppercase}
.hero-scroll i{width:1px;height:46px;background:linear-gradient(var(--faint),transparent);position:relative;overflow:hidden}
.hero-scroll i::after{content:'';position:absolute;top:-46px;left:0;width:1px;height:46px;background:var(--accent);animation:scrolldot 2.2s var(--ease) infinite}
@keyframes scrolldot{to{top:46px}}
@media(max-width:860px){
  .hero-side{display:none}
  .hero-top .chip:last-child{display:none}
  .hero-specs{gap:16px}.hero-specs .sep{display:none}
}

/* ---------- Guided tour ---------- */
#tour{position:relative;z-index:2;height:720vh;background:transparent}
.tour-intro{position:sticky;top:0;min-height:100vh;display:flex;flex-direction:column;justify-content:center;
  padding:0 clamp(20px,5vw,64px);max-width:640px;pointer-events:none}
.tour-intro .display{margin:20px 0 18px}
.tour-intro .lead{max-width:34ch}
.tour-cue{margin-top:34px;font-size:1.4rem;color:var(--accent);animation:bob 1.8s var(--ease) infinite}
@keyframes bob{0%,100%{transform:translateY(0)}50%{transform:translateY(10px)}}

/* ---------- Step navigator ---------- */
#stepper{position:fixed;left:clamp(18px,3vw,42px);top:50%;transform:translateY(-50%);z-index:35;
  opacity:0;transition:opacity .5s var(--ease);pointer-events:none}
#stepper.visible{opacity:1}
#stepper ul{list-style:none;display:flex;flex-direction:column;gap:20px}
#stepper li{display:flex;align-items:center;gap:11px;color:var(--faint);transition:color .35s var(--ease)}
#stepper li::before{content:'';width:16px;height:1px;background:currentColor;opacity:.6;transition:width .35s var(--ease),background .35s}
#stepper li b{font-family:var(--mono);font-size:.68rem;letter-spacing:.06em}
#stepper li span{font-family:var(--body);font-size:.68rem;letter-spacing:.16em;text-transform:uppercase;
  opacity:0;transform:translateX(-6px);transition:opacity .35s var(--ease),transform .35s var(--ease)}
#stepper li.active{color:var(--ink)}
#stepper li.active::before{width:28px;background:var(--accent);opacity:1}
#stepper li.active span{opacity:1;transform:none;color:var(--accent)}
#stepper li.done{color:var(--muted)}
@media(max-width:860px){#stepper{display:none}}

/* ---------- Annotation overlay ---------- */
#anno-layer{position:fixed;inset:0;z-index:30;pointer-events:none}
#anno-svg{position:absolute;inset:0;width:100%;height:100%;overflow:visible}
#anno-line{stroke:var(--accent);stroke-width:1.2;opacity:0;transition:opacity .4s var(--ease)}
#anno-line.show{opacity:.7}

#anno-dot{position:absolute;left:0;top:0;width:13px;height:13px;border-radius:50%;transform:translate(-50%,-50%) scale(.4);
  border:1px solid var(--accent);background:var(--accent-soft);opacity:0;transition:opacity .4s var(--ease),transform .4s var(--ease)}
#anno-dot.show{opacity:1;transform:translate(-50%,-50%) scale(1)}
#anno-dot::after{content:'';position:absolute;inset:3px;border-radius:50%;background:var(--accent)}
#anno-dot::before{content:'';position:absolute;inset:-8px;border-radius:50%;border:1px solid var(--accent);
  opacity:.5;animation:ping 1.9s var(--ease) infinite}
@keyframes ping{0%{transform:scale(.55);opacity:.6}100%{transform:scale(1.6);opacity:0}}

/* description card — fixed, premium */
#anno-card{position:absolute;right:clamp(24px,5vw,64px);bottom:14vh;width:min(360px,86vw);
  display:flex;gap:16px;padding:24px 26px 22px;border-radius:18px;overflow:hidden;
  background:linear-gradient(155deg,rgba(18,20,24,.82),rgba(9,10,13,.82));backdrop-filter:blur(20px) saturate(1.2);
  border:1px solid rgba(255,255,255,.09);box-shadow:0 24px 60px -20px rgba(0,0,0,.7);
  opacity:0;transform:translateY(22px);transition:opacity .55s var(--ease),transform .55s var(--ease)}
#anno-card.show{opacity:1;transform:none}
#anno-card::before{content:'';position:absolute;left:0;top:22px;bottom:22px;width:2px;background:var(--accent);border-radius:2px}
.anno-bignum{font-family:var(--tnr);font-weight:700;font-size:2.7rem;line-height:.8;color:transparent;
  -webkit-text-stroke:1px rgba(255,255,255,.22);letter-spacing:-.02em;flex-shrink:0}
.anno-inner{display:flex;flex-direction:column;min-width:0}
.anno-kicker{font-family:var(--body);font-size:.66rem;letter-spacing:.22em;text-transform:uppercase;color:var(--accent);margin-bottom:9px}
#anno-title{font-family:var(--serif);font-weight:600;font-size:1.3rem;line-height:1.1;letter-spacing:-.01em;margin-bottom:10px}
#anno-desc{font-family:var(--body);font-size:.9rem;color:var(--muted);line-height:1.6}
.anno-spec{margin-top:14px;padding-top:12px;border-top:1px solid var(--line-2);
  font-family:var(--mono);font-size:.72rem;letter-spacing:.04em;color:var(--faint)}
.anno-inner.in{animation:annoIn .55s var(--ease)}
@keyframes annoIn{from{opacity:0;transform:translateY(10px)}to{opacity:1;transform:none}}
@media(max-width:860px){
  #anno-card{left:14px;right:14px;bottom:16px;width:auto;padding:18px 20px}
  .anno-bignum{font-size:2.2rem}
}

/* ---------- Ticker ---------- */
.ticker{position:relative;z-index:2;background:var(--bg-2);border-block:1px solid var(--line-2);overflow:hidden;padding:16px 0}
.ticker-track{display:flex;align-items:center;gap:34px;white-space:nowrap;width:max-content;animation:marq 26s linear infinite;font-family:var(--mono);font-size:.82rem;letter-spacing:.08em;color:var(--muted)}
.ticker-track i{color:var(--accent);font-size:.6rem;opacity:.7}
@keyframes marq{to{transform:translateX(-50%)}}

/* ---------- Panels (solid, cover canvas) ---------- */
.panel{background:var(--bg);z-index:2;padding:clamp(80px,14vh,170px) clamp(20px,5vw,64px)}
.panel-inner{max-width:1180px;margin:0 auto}
.panel .display{margin-bottom:32px}

.feature-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:1px;background:var(--line-2);
  border:1px solid var(--line-2);margin-top:64px}
.feature{background:var(--bg);padding:34px 30px;display:flex;flex-direction:column;gap:14px}
.feature-num{font-family:var(--serif);font-weight:600;font-size:1.35rem;color:var(--ink)}
.feature p{color:var(--muted);font-size:.95rem;line-height:1.6}

/* ---------- Stats ---------- */
.stats{display:grid;grid-template-columns:repeat(4,1fr);gap:1px;background:var(--line-2);border:1px solid var(--line-2);margin-top:56px}
.stat{background:var(--bg);padding:40px 28px;display:flex;flex-direction:column}
.stat-num{font-family:var(--serif);font-weight:700;font-size:clamp(2.9rem,6vw,4.8rem);line-height:.92;letter-spacing:-.01em}
.stat-unit{font-family:var(--mono);font-size:.92rem;color:var(--accent);margin-top:8px}
.stat-label{margin-top:16px;font-size:.82rem;color:var(--muted);letter-spacing:.02em}
.charge-row{margin-top:48px;display:flex;align-items:center;gap:22px;flex-wrap:wrap}
.charge-bar{flex:1;min-width:220px;height:3px;background:var(--line);border-radius:3px;overflow:hidden}
.charge-bar span{display:block;height:100%;width:0;background:linear-gradient(90deg,var(--accent),#a9caff);border-radius:3px;transition:width 1.6s var(--ease)}
.charge-row.in span{width:80%}
.charge-row p{font-family:var(--mono);font-size:.8rem;color:var(--muted);letter-spacing:.03em}

/* ---------- Configurator (transparent to show 3D) ---------- */
.config{min-height:100svh;z-index:2;display:flex;align-items:center;
  padding:clamp(80px,12vh,140px) clamp(20px,5vw,64px);
  background:linear-gradient(180deg,var(--bg) 0%,transparent 22%,transparent 78%,var(--bg) 100%)}
.config-inner{width:100%;max-width:1280px;margin:0 auto;display:flex;justify-content:space-between;align-items:center;gap:40px;flex-wrap:wrap}
.config-head{max-width:400px}
.config-head .display{margin:18px 0}
.config-panel{width:340px;max-width:100%;background:rgba(10,12,15,.55);backdrop-filter:blur(16px);
  border:1px solid var(--line);border-radius:18px;padding:28px;display:flex;flex-direction:column;gap:26px}
.config-group{display:flex;flex-direction:column;gap:13px}
.config-label{font-family:var(--mono);font-size:.68rem;letter-spacing:.18em;text-transform:uppercase;color:var(--muted)}
.swatches{display:flex;gap:12px;flex-wrap:wrap}
.swatch{width:34px;height:34px;border-radius:50%;cursor:pointer;position:relative;border:1px solid var(--line);
  transition:transform .3s var(--ease);outline:none}
.swatch:hover{transform:scale(1.1)}
.swatch::after{content:'';position:absolute;inset:-5px;border-radius:50%;border:1px solid var(--accent);opacity:0;transition:opacity .25s}
.swatch.active::after{opacity:1}
.swatch-name{font-size:.9rem;color:var(--ink)}
.toggle{display:flex;background:rgba(255,255,255,.04);border:1px solid var(--line);border-radius:100px;padding:3px}
.toggle button{flex:1;padding:9px 0;border:none;background:transparent;color:var(--muted);font-family:var(--body);
  font-size:.82rem;cursor:pointer;border-radius:100px;transition:all .3s var(--ease)}
.toggle button.active{background:var(--ink);color:#06070a;font-weight:500}
.config-panel .btn-solid{margin-top:4px}
.drag-hint{position:absolute;left:50%;bottom:34px;transform:translateX(-50%);font-family:var(--mono);
  font-size:.7rem;letter-spacing:.12em;color:var(--faint);pointer-events:none;transition:opacity .5s}
.drag-hint.hide{opacity:0}

/* ---------- CTA ---------- */
.cta{text-align:center}
.cta-inner{max-width:760px;margin:0 auto;display:flex;flex-direction:column;align-items:center;gap:26px}
.cta .display{margin:6px 0}
.reserve{display:flex;gap:10px;width:100%;max-width:440px;margin-top:8px}
.reserve input{flex:1;background:rgba(255,255,255,.04);border:1px solid var(--line);border-radius:100px;
  padding:14px 22px;color:var(--ink);font-family:var(--body);font-size:.92rem;outline:none;transition:border-color .3s}
.reserve input:focus{border-color:var(--accent)}
.reserve input::placeholder{color:var(--faint)}
.cta-fine{font-family:var(--mono);font-size:.72rem;color:var(--faint);letter-spacing:.08em}

/* ---------- Footer ---------- */
#footer{background:var(--bg-2);z-index:2;position:relative;border-top:1px solid var(--line-2);padding:60px clamp(20px,5vw,64px) 40px}
.foot-top{display:flex;justify-content:space-between;align-items:center;gap:30px;flex-wrap:wrap;padding-bottom:40px;border-bottom:1px solid var(--line-2)}
.foot-brand{font-size:1rem}
.foot-links{display:flex;gap:28px}
.foot-links a{font-size:.85rem;color:var(--muted);transition:color .3s}
.foot-links a:hover{color:var(--ink)}
.foot-bottom{display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;padding-top:26px;
  font-family:var(--mono);font-size:.7rem;color:var(--faint);letter-spacing:.04em}

/* ---------- Reveal ---------- */
[data-reveal]{opacity:0;transform:translateY(28px)}

/* ---------- Responsive ---------- */
@media(max-width:860px){
  .nav-links{display:none}
  .feature-grid{grid-template-columns:1fr}
  .stats{grid-template-columns:1fr 1fr}
  .config-inner{flex-direction:column;align-items:stretch}
  .config-head{max-width:none;text-align:center}
  .config-panel{width:100%}
  .drag-hint{display:none}
}
@media(max-width:480px){
  .stats{grid-template-columns:1fr}
}
@media(prefers-reduced-motion:reduce){
  *,*::before,*::after{animation-duration:.001ms!important;animation-iteration-count:1!important;transition-duration:.001ms!important}
  [data-reveal]{opacity:1;transform:none}
  .hero-scroll i::after{display:none}
}