:root{
  --bg:oklch(0.17 0.012 60);
  --bg-alt:oklch(0.2 0.012 60);
  --panel:oklch(0.225 0.012 60);
  --fg:oklch(0.95 0.008 80);
  --fg-soft:oklch(0.86 0.008 80);
  --muted:oklch(0.72 0.01 70);
  --muted-2:oklch(0.6 0.02 70);
  --muted-3:oklch(0.52 0.02 70);
  --line:oklch(0.26 0.012 60);
  --line-2:oklch(0.32 0.012 60);
  --accent:oklch(0.72 0.16 32);
  --accent-hi:oklch(0.79 0.15 32);
  --accent-dim:oklch(0.75 0.15 32);
  --jp:oklch(0.45 0.03 250);
  --serif:'Zen Old Mincho',Georgia,'Times New Roman',serif;
  --sans:'IBM Plex Sans',Helvetica,Arial,sans-serif;
  --mono:'IBM Plex Mono',ui-monospace,SFMono-Regular,Menlo,monospace;
  --maxw:1180px;
}
*{box-sizing:border-box}
html,body{margin:0;padding:0;background:var(--bg)}
body{
  color:var(--fg);
  font-family:var(--sans);
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
a{color:var(--accent);text-decoration:none}
a:hover{color:var(--accent-hi)}
::selection{background:var(--accent);color:oklch(0.15 0.01 60)}
input::placeholder{color:var(--muted-3)}
h1,h2,h3,p{margin:0}
button{font:inherit}

@keyframes adbRise{from{opacity:0;transform:translateY(14px)}to{opacity:1;transform:none}}
@keyframes adbGrow{from{transform:scaleY(0)}to{transform:scaleY(1)}}
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{animation-duration:.001ms!important;animation-iteration-count:1!important;transition-duration:.001ms!important}
}

.mono{font-family:var(--mono);text-transform:uppercase;letter-spacing:.16em}
.serif{font-family:var(--serif)}
.wrap{max-width:var(--maxw);margin:0 auto;width:100%}
.skip{position:absolute;left:-9999px}
.skip:focus{left:12px;top:12px;z-index:100;background:var(--accent);color:oklch(0.16 0.02 40);padding:10px 16px;border-radius:2px}

/* ---------- nav ---------- */
.nav{
  position:sticky;top:0;z-index:50;
  display:flex;align-items:center;justify-content:space-between;gap:24px;
  padding:15px 40px;
  background:oklch(0.17 0.012 60 / .9);
  backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);
  border-bottom:1px solid var(--line);
}
.nav-brand{display:flex;align-items:baseline;gap:12px;min-width:0}
.nav-name{font-family:var(--serif);font-size:19px;font-weight:700;letter-spacing:.01em}
.nav-tag{font-family:var(--mono);font-size:10px;letter-spacing:.16em;text-transform:uppercase;color:var(--muted-2)}
.nav-cta{
  padding:9px 18px;background:transparent;border:1px solid var(--accent);border-radius:2px;
  color:oklch(0.78 0.15 32);font-size:12px;font-weight:600;font-family:var(--mono);
  letter-spacing:.1em;text-transform:uppercase;cursor:pointer;white-space:nowrap;
  transition:background .18s,color .18s;
}
.nav-cta:hover{background:var(--accent);color:oklch(0.16 0.02 40)}

/* ---------- hero ---------- */
.hero{
  position:relative;min-height:min(760px,calc(100vh - 58px));
  display:flex;flex-direction:column;justify-content:center;
  padding:54px 40px 48px;overflow:hidden;border-bottom:1px solid var(--line);
}
.hero-bars{
  position:absolute;left:0;right:0;bottom:0;height:56%;
  display:flex;align-items:flex-end;gap:4px;padding:0 30px;opacity:.5;pointer-events:none;
}
.hero-bar-col{flex:1;display:flex;align-items:flex-end;justify-content:center;gap:2px;height:100%}
.hero-bar{width:40%;transform-origin:bottom;animation:adbGrow 1.1s cubic-bezier(.2,.7,.2,1) both}
.hero-bar.dom{background:linear-gradient(oklch(0.34 0.02 250),oklch(0.24 0.012 250 / 0))}
.hero-bar.int{background:linear-gradient(oklch(0.48 0.13 32),oklch(0.3 0.06 32 / 0))}
.hero-scrim{
  position:absolute;inset:0;pointer-events:none;
  background:linear-gradient(oklch(0.17 0.012 60) 22%,oklch(0.17 0.012 60 / .72) 62%,oklch(0.17 0.012 60 / .9));
}
.hero-inner{position:relative;z-index:2}
.hero-eyebrow{display:flex;align-items:center;gap:14px;margin-bottom:26px}
.hero-dot{width:7px;height:7px;background:var(--accent);border-radius:50%;flex-shrink:0}
.hero-eyebrow span{font-family:var(--mono);font-size:11px;letter-spacing:.2em;text-transform:uppercase;color:oklch(0.7 0.06 40)}
.hero-title{
  font-family:var(--serif);font-size:clamp(58px,13vw,190px);line-height:.9;
  font-weight:700;letter-spacing:-.035em;
}
.hero-title em{font-style:normal;color:var(--accent)}
.hero-grid{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1fr);gap:56px;margin-top:38px;align-items:end}
.hero-lede{font-size:clamp(18px,1.9vw,23px);line-height:1.5;color:oklch(0.9 0.008 80);max-width:34ch;text-wrap:pretty}

/* ---------- forms ---------- */
.f-row{display:flex;gap:8px;flex-wrap:wrap}
.f-input{
  flex:1;min-width:0;padding:15px 16px;
  background:oklch(0.21 0.012 60);border:1px solid oklch(0.36 0.012 60);border-radius:2px;
  color:var(--fg);font-size:16px;font-family:var(--sans);outline:none;
  transition:border-color .16s;
}
.f-input:focus{border-color:var(--accent)}
.f-btn{
  padding:15px 24px;background:var(--accent);border:none;border-radius:2px;
  color:oklch(0.16 0.02 40);font-size:15px;font-weight:600;font-family:var(--sans);
  cursor:pointer;white-space:nowrap;transition:background .18s;
}
.f-btn:hover{background:var(--accent-hi)}
.f-btn[disabled]{opacity:.6;cursor:progress}
.f-sub{margin-top:12px;display:flex;align-items:center;gap:16px;flex-wrap:wrap;min-height:38px}
.f-ghost{
  display:inline-flex;align-items:center;gap:9px;padding:10px 16px;
  background:oklch(0.24 0.014 60);border:1px solid oklch(0.4 0.03 40);border-radius:2px;
  color:oklch(0.9 0.008 80);font-family:var(--mono);font-size:12px;letter-spacing:.1em;
  text-transform:uppercase;cursor:pointer;transition:background .18s,border-color .18s,transform .18s;
}
.f-ghost:hover{background:oklch(0.29 0.02 40);border-color:var(--accent);transform:translateY(1px)}
.f-ghost span{color:oklch(0.78 0.15 32)}
.f-note{font-family:var(--mono);font-size:11px;line-height:1.7;color:var(--accent)}
.hp{position:absolute;left:-9999px;width:1px;height:1px;opacity:0;pointer-events:none}
[hidden]{display:none!important}

.ok-hero{animation:adbRise .4s ease both;border:1px solid var(--accent);padding:22px 24px;background:oklch(0.21 0.02 40)}
.ok-hero-h{font-family:var(--serif);font-size:24px;margin-bottom:8px}
.ok-hero-p{font-size:14px;line-height:1.55;color:oklch(0.8 0.01 80)}

/* ---------- chart ---------- */
.chart-sec{padding:72px 40px 64px;max-width:var(--maxw);margin:0 auto}
.chart-head{display:flex;flex-wrap:wrap;justify-content:space-between;align-items:flex-end;gap:24px;margin-bottom:44px}
.chart-head h2{font-family:var(--serif);font-size:clamp(26px,3vw,40px);font-weight:400;letter-spacing:-.01em;max-width:22ch;line-height:1.2}
.legend{display:flex;gap:22px;font-family:var(--mono);font-size:11px;letter-spacing:.1em;text-transform:uppercase;color:oklch(0.7 0.01 70)}
.legend div{display:flex;align-items:center;gap:8px}
.legend i{width:10px;height:10px;display:inline-block}
.legend .jp{background:var(--jp)}
.legend .intl{background:var(--accent)}
.readout{display:flex;align-items:baseline;gap:22px;margin-bottom:14px;flex-wrap:wrap}
.readout-year{font-family:var(--serif);font-size:40px;line-height:1;color:var(--fg)}
.readout-pair{display:flex;gap:24px}
.readout-lab{font-family:var(--mono);font-size:10px;letter-spacing:.14em;text-transform:uppercase;color:var(--muted-2);margin-bottom:5px}
.readout-val{font-family:var(--mono);font-size:17px}
.readout-val.jp{color:oklch(0.7 0.06 250)}
.readout-val.intl{color:var(--accent)}
.plot{position:relative;height:320px;margin-top:52px;border-bottom:1px solid oklch(0.42 0.012 60)}
.gridline{position:absolute;left:0;right:0;height:1px;background:oklch(0.25 0.012 60)}
.gridline span{position:absolute;right:0;bottom:4px;font-family:var(--mono);font-size:10px;color:var(--muted-3)}
.cols{position:absolute;inset:0;padding-right:52px;display:flex;align-items:flex-end;gap:3px;z-index:2}
.col{position:relative;flex:1;height:100%;display:flex;align-items:flex-end;justify-content:center;gap:2px;background:transparent;cursor:crosshair;transition:background .15s}
.col.on{background:oklch(0.23 0.014 60)}
.col b{width:38%;display:block;height:0;transition:height 1s cubic-bezier(.2,.7,.2,1),opacity .15s;opacity:1}
.col b.dom{background:var(--jp)}
.col b.int{background:var(--accent)}
.col.dim b{opacity:.42}
.cross-line{position:absolute;left:50%;top:-42px;bottom:0;width:0;border-left:1px dashed var(--accent-dim);z-index:4;pointer-events:none}
.cross-lab{position:absolute;bottom:100%;right:calc(50% + 10px);margin-bottom:26px;white-space:nowrap;text-align:right;z-index:5;font-family:var(--mono);font-size:10px;letter-spacing:.1em;text-transform:uppercase;color:var(--accent-dim)}
.ticks{display:flex;gap:3px;margin-top:10px;padding-right:52px}
.tick{flex:1;text-align:center;font-family:var(--mono);font-size:10px;color:var(--muted-3)}
.tick.on{color:var(--accent)}
.under{display:grid;grid-template-columns:minmax(0,1.5fr) minmax(0,1fr);margin-top:36px;border:1px solid oklch(0.27 0.012 60)}
.under-quote{padding:26px 28px;border-right:1px solid oklch(0.27 0.012 60);display:flex;flex-direction:column;justify-content:space-between;gap:22px}
.under-quote-t{font-family:var(--serif);font-size:clamp(21px,2.3vw,31px);line-height:1.25;letter-spacing:-.008em;text-wrap:pretty;max-width:40ch}
.under-quote-t em{font-style:normal}
.under-meta{display:flex;flex-wrap:wrap;gap:10px 18px;align-items:center;justify-content:space-between}
.under-attrib{display:flex;align-items:center;gap:12px}
.under-rule{width:22px;height:1px;background:oklch(0.42 0.012 60);flex-shrink:0}
.under-attrib span{font-family:var(--mono);font-size:10px;line-height:1.6;white-space:nowrap;color:var(--muted)}
.under-src{font-family:var(--mono);font-size:10px;line-height:1.6;color:oklch(0.54 0.02 70)}
.under-goal{padding:26px 28px;background:oklch(0.2 0.014 40)}
.under-goal-lab{font-family:var(--mono);font-size:10px;letter-spacing:.14em;text-transform:uppercase;color:oklch(0.62 0.02 70);margin-bottom:14px}
.under-goal-num{font-family:var(--serif);font-size:clamp(36px,4vw,52px);line-height:1;color:var(--accent);margin-bottom:14px}
.under-goal-p{font-size:14px;line-height:1.55;color:oklch(0.76 0.01 70)}

/* ---------- fandom ---------- */
.fandom{padding:88px 40px 96px;background:var(--bg-alt);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.fandom-in{max-width:820px;margin:0 auto}
.fandom h2{font-family:var(--serif);font-size:clamp(30px,3.8vw,50px);font-weight:400;line-height:1.14;letter-spacing:-.018em;text-wrap:pretty;margin-bottom:26px}
.fandom-p{font-size:19px;line-height:1.68;color:var(--fg-soft);text-wrap:pretty}
.fandom-p strong{font-weight:600;color:inherit}
.ask{margin-top:62px;padding-left:34px;border-left:2px solid var(--accent)}
.ask-lab{font-family:var(--mono);font-size:11px;letter-spacing:.2em;text-transform:uppercase;color:var(--accent-dim);margin-bottom:32px}
.ask-list{display:flex;flex-direction:column;gap:30px;padding-bottom:8px;list-style:none;margin:0;padding-left:0}
.ask-item{display:grid;grid-template-columns:44px minmax(0,1fr);gap:10px;align-items:baseline}
.ask-item span{font-family:var(--serif);font-size:clamp(21px,2.3vw,30px);line-height:1.32;color:oklch(0.94 0.008 80);text-wrap:pretty}
.ask-out{padding-left:34px;padding-top:52px}
.ask-out p:first-child{font-size:17px;line-height:1.65;color:var(--muted);max-width:52ch;margin-bottom:20px}
.ask-out p:last-child{font-family:var(--serif);font-size:clamp(25px,3.1vw,38px);line-height:1.22;letter-spacing:-.012em;color:var(--accent);text-wrap:pretty;max-width:26ch}

/* ---------- stack ---------- */
.stack-sec{padding:72px 40px 76px;max-width:var(--maxw);margin:0 auto}
.stack-sec h2{font-family:var(--serif);font-size:clamp(30px,4.4vw,60px);font-weight:400;line-height:1.12;letter-spacing:-.015em;max-width:24ch;text-wrap:pretty;margin-bottom:20px}
.stack-sec h2 em{font-style:normal;color:var(--accent)}
.stack-lede{font-size:19px;line-height:1.6;color:oklch(0.85 0.008 80);max-width:50ch;margin-bottom:52px}
.stack-grid{display:grid;grid-template-columns:minmax(0,1.45fr) minmax(0,1fr);gap:40px;align-items:center}
.layers{display:flex;flex-direction:column;gap:5px}
.layer{
  position:relative;display:grid;grid-template-columns:minmax(0,215px) minmax(0,1fr);gap:26px;align-items:center;
  padding:19px 26px;background:oklch(0.205 0.012 60);border:1px solid oklch(0.29 0.012 60);
  transition:transform .22s,background .22s;
}
.layer:hover{transform:translateX(7px)}
.layer-name{font-family:var(--serif);font-size:21px;font-weight:400;color:oklch(0.88 0.008 80);letter-spacing:-.008em}
.layer-desc{font-size:14px;line-height:1.5;color:oklch(0.68 0.01 70)}
.layer.data{
  padding:30px 28px;margin:9px -11px;background:oklch(0.235 0.03 40);border:1px solid var(--accent);
  box-shadow:0 0 0 1px oklch(0.72 0.16 32 / .25),0 18px 44px oklch(0.1 0.02 40 / .55);
}
.layer.data .layer-name{font-size:27px;font-weight:700;color:oklch(0.96 0.02 60)}
.layer.data .layer-desc{color:oklch(0.84 0.01 70)}
.layer-spine{position:absolute;top:-1px;bottom:-1px;left:-11px;width:4px;background:var(--accent)}
.aside{display:flex;flex-direction:column;gap:22px;padding-left:8px;border-left:1px solid oklch(0.28 0.012 60)}
.aside > div{padding-left:22px}
.aside-mid{padding-top:20px;padding-bottom:20px;border-top:1px solid oklch(0.28 0.012 60);border-bottom:1px solid oklch(0.28 0.012 60)}
.aside-lab{font-family:var(--mono);font-size:10px;letter-spacing:.16em;text-transform:uppercase;color:oklch(0.62 0.02 70);margin-bottom:10px}
.aside-lab.hot{color:var(--accent-dim)}
.aside-txt{font-size:14px;line-height:1.55;color:var(--muted)}
.aside-txt.big{font-size:15px;line-height:1.6;color:oklch(0.88 0.008 80)}

/* ---------- waitlist ---------- */
.wl{padding:76px 40px 84px;background:var(--bg-alt);border-top:1px solid var(--line);scroll-margin-top:70px}
.wl-grid{max-width:var(--maxw);margin:0 auto;display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1fr);gap:64px;align-items:start}
.wl h2{font-family:var(--serif);font-size:clamp(34px,4.6vw,64px);font-weight:400;line-height:1.08;letter-spacing:-.02em;margin-bottom:10px}
.wl-kicker{font-family:var(--mono);font-size:13px;letter-spacing:.16em;text-transform:uppercase;color:var(--accent-dim);margin-bottom:26px}
.wl-p{font-size:19px;line-height:1.6;color:oklch(0.85 0.008 80);max-width:42ch}
.wl-card{border:1px solid var(--line-2);background:var(--panel);padding:32px 30px 28px}
.wl-label{display:block;font-family:var(--mono);font-size:11px;letter-spacing:.14em;text-transform:uppercase;color:oklch(0.66 0.01 70);margin-bottom:12px}
.wl-input{
  width:100%;padding:14px;background:oklch(0.23 0.012 60);border:1px solid oklch(0.34 0.012 60);
  border-radius:2px;color:var(--fg);font-size:16px;font-family:var(--sans);outline:none;margin-bottom:14px;
  transition:border-color .16s;
}
.wl-input:focus{border-color:var(--accent)}
.wl-btn{width:100%;padding:15px;background:var(--accent);border:none;border-radius:2px;color:oklch(0.16 0.02 40);font-size:15px;font-weight:600;font-family:var(--sans);cursor:pointer;transition:background .18s}
.wl-btn:hover{background:var(--accent-hi)}
.wl-btn[disabled]{opacity:.6;cursor:progress}
.ok-wl{animation:adbRise .45s ease both}
.ok-check{width:34px;height:34px;border-radius:50%;background:var(--accent);color:oklch(0.16 0.02 40);display:flex;align-items:center;justify-content:center;font-size:18px;font-weight:600;margin-bottom:20px}
.ok-wl-h{font-family:var(--serif);font-size:27px;line-height:1.25;margin-bottom:12px}
.ok-wl-p{font-size:15px;line-height:1.6;color:oklch(0.78 0.01 80);margin-bottom:22px}
.ok-wl-f{font-family:var(--mono);font-size:11px;letter-spacing:.1em;text-transform:uppercase;color:var(--muted-2);border-top:1px solid oklch(0.3 0.012 60);padding-top:16px;display:flex;justify-content:space-between;gap:16px}
.ok-wl-f button{background:none;border:none;padding:0;cursor:pointer;color:var(--accent);font-family:var(--mono);font-size:11px;letter-spacing:.1em;text-transform:uppercase}

/* ---------- footer ---------- */
.foot{border-top:1px solid var(--line);background:var(--bg-alt);padding:30px 40px}
.foot-in{max-width:var(--maxw);margin:0 auto;display:flex;flex-wrap:wrap;gap:20px;justify-content:space-between;align-items:center}
.foot-name{font-family:var(--serif);font-size:16px;font-weight:700}
.foot-tag{font-family:var(--mono);font-size:11px;letter-spacing:.1em;text-transform:uppercase;color:oklch(0.58 0.02 70)}
.foot-links{display:flex;gap:18px;font-family:var(--mono);font-size:11px;letter-spacing:.1em;text-transform:uppercase}
.foot-links a{color:oklch(0.58 0.02 70)}
.foot-links a:hover{color:var(--accent)}

/* ---------- responsive ----------
   Breakpoints and values taken from the Claude Design source, which drives
   them off a viewport-width state with two thresholds: narrow <= 820,
   tiny <= 520. Kept identical so the built page matches the design exactly. */

@media (max-width:820px){
  .nav{padding:13px 20px}
  .nav-tag{display:none}
  .nav-cta{padding:14px 18px}                    /* larger tap target on touch */

  .hero{min-height:auto;padding:44px 20px 48px}
  .hero-bars{padding:0 12px;gap:2px}
  .hero-grid{grid-template-columns:minmax(0,1fr);gap:30px;align-items:start}
  .f-ghost{padding:15px 18px}                    /* larger tap target on touch */

  .chart-sec{padding:56px 20px 52px}
  .plot{height:240px;margin-top:40px}
  .cols{padding-right:36px;gap:1px}
  .ticks{padding-right:36px;gap:1px}
  .col{gap:2px}
  .cross-lab{font-size:9px}
  .readout-year{font-size:32px}
  .under{grid-template-columns:minmax(0,1fr)}
  .under-quote{border-right:none;border-bottom:1px solid oklch(0.27 0.012 60)}
  .under-attrib span{white-space:normal}

  .fandom{padding:64px 20px 68px}
  .ask{padding-left:22px}
  .ask-item{grid-template-columns:30px minmax(0,1fr)}
  .ask-out{padding-left:22px}

  .stack-sec{padding:60px 20px 64px}
  .stack-grid{grid-template-columns:minmax(0,1fr);gap:34px}
  .layer{grid-template-columns:minmax(0,1fr);gap:7px;padding:16px 20px}
  .layer.data{padding:24px 20px;margin:7px -8px}
  .layer-spine{left:-8px}
  .aside{border-left:none;border-top:1px solid oklch(0.28 0.012 60);padding-left:0;padding-top:28px}
  .aside > div{padding-left:0}

  .wl{padding:60px 20px 68px}
  .wl-grid{grid-template-columns:minmax(0,1fr);gap:40px}

  .foot{padding:26px 20px}
}

@media (max-width:520px){
  .f-row{flex-direction:column}
  .f-btn{width:100%}
}