/* Layout: one calm column that widens into split rows; the hero is a living map (contour lines) around the voice orb. */
:root{
  --bg:#F3F6FA;--bg2:#E6EEF8;--card:#FFFFFF;--ink:#11283A;--muted:#5B6F7E;--line:#D8E2EA;
  --ocean:#2A5CA8;--reef:#2A8FA0;--ember:#C9731F;--rose:#B65A77;--twilight:#6A66A8;
  --btn:linear-gradient(90deg,#244F95,#2A5CA8 45%,#3D7BC7);--btn-ink:#FFFFFF;
  --wm1:#2A5CA8;--wm2:#2A8FA0;--wm3:#C9731F;
  --orb1:#F0F7FF;--orb2:#76AAE8;--orb3:#244A8C;--ring:rgba(42,92,168,.25);--contour:rgba(42,92,168,.16);
  --brand:"Michroma","Red Hat Display",sans-serif;--sans:"Red Hat Display","Segoe UI",system-ui,sans-serif;
  --serif:"Newsreader",Georgia,serif;--mono:"IBM Plex Mono",ui-monospace,Consolas,monospace;
  --w:72rem;--r:18px;
}
@media (prefers-color-scheme: dark){:root:not([data-theme="light"]){color-scheme:dark;
  --bg:#13283D;--bg2:#1E3F5E;--card:#1B3550;--ink:#EAF2F7;--muted:#AFC0CE;--line:#2A4A68;
  --ocean:#8AB4F0;--reef:#5FC3C8;--ember:#F2A65A;--rose:#E7A6BA;--twilight:#A9B6F2;
  --btn:linear-gradient(90deg,#7EA9EA,#8AB4F0 45%,#A7C7F5);--btn-ink:#11283A;
  --wm1:#8AB4F0;--wm2:#5FC3C8;--wm3:#F2A65A;--orb1:#E9F3FF;--orb2:#6E9FE0;--orb3:#1D3E78;--ring:rgba(138,180,240,.3);--contour:rgba(138,180,240,.14)}}
:root[data-theme="dark"]{color-scheme:dark;
  --bg:#13283D;--bg2:#1E3F5E;--card:#1B3550;--ink:#EAF2F7;--muted:#AFC0CE;--line:#2A4A68;
  --ocean:#8AB4F0;--reef:#5FC3C8;--ember:#F2A65A;--rose:#E7A6BA;--twilight:#A9B6F2;
  --btn:linear-gradient(90deg,#7EA9EA,#8AB4F0 45%,#A7C7F5);--btn-ink:#11283A;
  --wm1:#8AB4F0;--wm2:#5FC3C8;--wm3:#F2A65A;--orb1:#E9F3FF;--orb2:#6E9FE0;--orb3:#1D3E78;--ring:rgba(138,180,240,.3);--contour:rgba(138,180,240,.14)}
*{box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{margin:0;background:var(--bg);color:var(--ink);font:400 1.0625rem/1.65 var(--sans);font-optical-sizing:auto}
img{max-width:100%;display:block}
a{color:var(--ocean)}
:focus-visible{outline:2px solid var(--ocean);outline-offset:3px;border-radius:6px}
.wrap{max-width:var(--w);margin-inline:auto;padding-left:max(16px,env(safe-area-inset-left,0px));padding-right:max(16px,env(safe-area-inset-right,0px))}
.skip{position:absolute;left:-999px}.skip:focus{left:16px;top:16px;z-index:9;background:var(--card);padding:.5rem 1rem}
.wm{font-family:var(--brand);font-weight:400;letter-spacing:.32em;text-transform:uppercase;background:linear-gradient(90deg,var(--wm1),var(--wm2) 60%,var(--wm3));-webkit-background-clip:text;background-clip:text;color:transparent;text-decoration:none;white-space:nowrap}
.ey{font:400 .75rem/1.4 var(--mono);letter-spacing:.14em;text-transform:uppercase;color:var(--reef);margin:0}
h1,h2,h3{font-weight:300;line-height:1.12;text-wrap:balance;margin:0;letter-spacing:-.01em}
h1{font-size:clamp(2.4rem,6.2vw,4.4rem)}
h2{font-size:clamp(1.8rem,3.8vw,2.8rem)}
h3{font-size:1.25rem;font-weight:500;letter-spacing:0}
p{margin:0}
.lead{font-size:clamp(1.08rem,1.6vw,1.22rem);color:var(--muted);max-width:36rem}
.btn{display:inline-flex;align-items:center;gap:.7rem;background:var(--btn);color:var(--btn-ink);border:0;border-radius:999px;padding:.8rem 1.35rem;font:500 1rem/1.2 var(--sans);text-decoration:none;cursor:pointer}
.btn:hover{filter:brightness(1.06)}
.btn small{display:block;font-size:.7rem;opacity:.85;font-weight:400}
.ghost{background:none;border:1px solid var(--line);color:var(--ink);border-radius:999px;padding:.45rem .9rem;font:500 .85rem var(--sans);cursor:pointer;text-decoration:none}
/* header */
.top{position:sticky;top:env(safe-area-inset-top,0px);z-index:5;background:color-mix(in srgb,var(--bg) 88%,transparent);backdrop-filter:blur(10px);border-bottom:1px solid transparent}
.top.scrolled{border-bottom-color:var(--line)}
.top .wrap{display:flex;align-items:center;gap:1.2rem;padding-block:.9rem}
.top .wm{font-size:.95rem}
.top nav{display:flex;gap:1.3rem;margin-left:auto}
.top nav a{color:var(--muted);text-decoration:none;font-size:.95rem}
.top nav a:hover{color:var(--ink)}
.tools{display:flex;gap:.5rem;align-items:center}
.icon-btn{width:2.2rem;height:2.2rem;display:grid;place-items:center;border-radius:50%;border:1px solid var(--line);background:none;color:var(--ink);cursor:pointer}
@media (max-width:860px){.top nav{display:none}.tools{margin-left:auto}.top .btn{display:none}}
/* hero */
.hero{position:relative;overflow:hidden}
.hero canvas.contours{position:absolute;inset:0;width:100%;height:100%;pointer-events:none}
.hero .wrap{position:relative;display:grid;grid-template-columns:1.15fr .85fr;gap:2.5rem;align-items:center;padding-block:4.5rem 5rem}
.hero .txt{display:grid;gap:1.4rem;min-width:0}
.ctas{display:flex;flex-wrap:wrap;gap:1rem;align-items:center}
.ctas .soon{font:400 .8rem var(--mono);color:var(--muted)}
.orbbox{display:grid;justify-items:center;gap:.9rem;text-align:center;min-width:0}
.orb{position:relative;width:min(340px,78vw);aspect-ratio:1;max-width:100%;border:0;padding:0;background:none;cursor:pointer;border-radius:50%}
.orb canvas{width:100%;height:100%;display:block}
.orb .play{position:absolute;inset:0;display:grid;place-items:center;color:#fff;pointer-events:none}
.orb .play svg{width:3.2rem;height:3.2rem;filter:drop-shadow(0 2px 10px rgba(17,40,58,.35));transition:opacity .3s}
.orb.on .play svg{opacity:0}
.orbbox .cap{font-size:.98rem;max-width:22rem}
.orbbox .sub{font:400 .75rem var(--mono);color:var(--muted)}
.tr{max-width:26rem;font:italic 400 1.02rem/1.6 var(--serif);color:var(--muted);text-align:left}
@media (max-width:860px){.hero .wrap{grid-template-columns:1fr;padding-block:2.5rem 3.5rem}.orbbox{order:-1}}
/* sections */
section{padding-block:5rem}
section[id]{scroll-margin-top:4.5rem}
.sec-h{display:grid;gap:.8rem;margin-bottom:2.5rem;max-width:44rem}
.alt{background:var(--bg2)}
.split{display:grid;grid-template-columns:1fr 1fr;gap:3rem;align-items:center}
.split>*{min-width:0}
.split .copy{display:grid;gap:1.1rem;max-width:34rem}
.photo{border-radius:var(--r);overflow:hidden;aspect-ratio:4/5;max-width:100%}
.photo img{width:100%;height:100%;object-fit:cover}
.quote{font:italic 400 clamp(1.3rem,2.4vw,1.65rem)/1.4 var(--serif);color:var(--ocean);border-left:2px solid var(--ember);padding-left:1.1rem}
.note{font-size:.9rem;color:var(--muted)}
@media (max-width:860px){.split{grid-template-columns:1fr;gap:2rem}.photo{aspect-ratio:16/10}}
/* NLP in plain words */
.parts{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:1.5rem}
.parts>div{background:var(--card);border:1px solid var(--line);border-radius:var(--r);padding:1.5rem;display:grid;gap:.5rem;align-content:start}
.parts b{font:300 1.6rem/1.1 var(--sans);color:var(--ocean)}
.parts p{color:var(--muted)}
.what-ex{margin-top:2.2rem;max-width:44rem}
@media (max-width:760px){.parts{grid-template-columns:1fr}}
/* four ways */
.ways{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:1px;background:var(--line);border:1px solid var(--line);border-radius:var(--r);overflow:hidden}
.way{background:var(--card);padding:2rem;display:grid;gap:.7rem;align-content:start}
.way .glyph{width:2.6rem;height:2.6rem}
.way p{color:var(--muted)}
.tag{font:400 .72rem var(--mono);letter-spacing:.06em;color:var(--reef);text-transform:uppercase}
@media (max-width:700px){.ways{grid-template-columns:1fr}.way{padding:1.5rem}}
/* demo conversation */
.chat{display:grid;gap:.8rem;max-width:40rem}
.msg{display:grid;gap:.2rem;max-width:85%;padding:.85rem 1.1rem;border-radius:16px}
.msg b{font:500 .7rem var(--mono);letter-spacing:.1em;text-transform:uppercase;color:var(--muted)}
.msg.you{background:var(--card);border:1px solid var(--line);justify-self:start}
.msg.coach{background:color-mix(in srgb,var(--ocean) 12%,var(--card));justify-self:end}
.msg.coach b{color:var(--ocean)}
/* learn */
.stars{position:relative;border-radius:var(--r);background:var(--card);border:1px solid var(--line);padding:1.5rem}
.stars canvas{width:100%;height:auto;aspect-ratio:16/10;display:block}
.mods{columns:2;column-gap:2rem;padding:0;margin:0;list-style:none;counter-reset:m;font-size:.95rem}
.mods li{counter-increment:m;break-inside:avoid;padding:.3rem 0;display:flex;gap:.6rem}
.mods li::before{content:counter(m,decimal-leading-zero);font:400 .75rem/1.9 var(--mono);color:var(--reef);font-variant-numeric:tabular-nums}
@media (max-width:520px){.mods{columns:1}}
/* plans */
.plans{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:1.5rem;max-width:56rem}
.plan{background:var(--card);border:1px solid var(--line);border-radius:var(--r);padding:2rem;display:grid;gap:1rem;align-content:start}
.plan.prem{border-color:color-mix(in srgb,var(--ocean) 45%,var(--line));box-shadow:0 18px 40px -28px var(--ocean)}
.price{font:300 2.6rem/1 var(--sans);font-variant-numeric:tabular-nums}
.price small{display:block;font:400 .85rem/1.4 var(--sans);color:var(--muted);margin-top:.4rem}
.plan ul{margin:0;padding:0;list-style:none;display:grid;gap:.55rem}
.plan li{padding-left:1.4rem;position:relative}
.plan li::before{content:"";position:absolute;left:0;top:.62em;width:.5rem;height:.5rem;border-radius:50%;background:var(--reef)}
.plan.prem li::before{background:var(--ocean)}
.trial{margin-top:1.5rem;color:var(--muted);font-size:.95rem}
@media (max-width:700px){.plans{grid-template-columns:1fr}}
/* trust */
.trust{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:1.5rem;margin-top:3rem}
.trust>div{border-top:1px solid var(--line);padding-top:1.2rem;display:grid;gap:.6rem;align-content:start}
.trust p{color:var(--muted)}
@media (max-width:700px){.trust{grid-template-columns:1fr}}
/* faq */
.faq{max-width:46rem;display:grid}
.faq details{border-top:1px solid var(--line);padding-block:1.1rem}
.faq details:last-child{border-bottom:1px solid var(--line)}
.faq summary{cursor:pointer;font-weight:500;font-size:1.08rem;list-style:none;display:flex;justify-content:space-between;gap:1rem}
.faq summary::after{content:"+";font:300 1.4rem/1 var(--sans);color:var(--ocean)}
.faq details[open] summary::after{content:"−"}
.faq details p{margin-top:.7rem;color:var(--muted)}
/* end + footer */
.end{text-align:center}
.end .wrap{display:grid;justify-items:center;gap:1.2rem}
.end p{color:var(--muted)}
footer{border-top:1px solid var(--line);padding-block:2.5rem;font-size:.88rem;color:var(--muted)}
footer .wrap{display:grid;gap:1rem}
footer .row{display:flex;flex-wrap:wrap;gap:.6rem 1.4rem;align-items:center}
footer a{color:var(--muted)}
footer .wm{font-size:.8rem}
/* about page */
.about-head .wrap{display:grid;gap:1rem;padding-block:4rem 3rem;max-width:var(--w)}
.about-head .lead{font:italic 400 clamp(1.2rem,2.2vw,1.5rem)/1.45 var(--serif);color:var(--ocean);max-width:40rem}
.about-split{align-items:start}
.about-split .copy{gap:1.25rem}
.about-split .copy p:first-child::first-letter{font:300 3.4em/.9 var(--sans);float:left;margin:.08em .12em 0 0;color:var(--ocean)}
.creds{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:1px;margin:0;background:var(--line);border:1px solid var(--line);border-radius:var(--r);overflow:hidden;max-width:56rem}
.creds div{background:var(--card);padding:1.3rem 1.5rem;display:grid;gap:.25rem}
.creds dt{font-weight:500}
.creds dd{margin:0;color:var(--muted);font-size:.95rem}
.indep{margin-top:1.5rem;max-width:46rem}
.more{font-weight:500;text-decoration:none}
.more:hover{text-decoration:underline}
@media (max-width:640px){.creds{grid-template-columns:1fr}}
@media (prefers-reduced-motion:reduce){html{scroll-behavior:auto}}