:root{
  --page:#f5f6f2; --surface:#ffffff; --ink:#203b38; --muted:#5f716d; --line:#dce4dd;
  --teal:#287b6d; --teal-hover:#206256; --teal-text:#26786a; --mint:#e9f2eb;
  --ochre:#8a5f22; --ochre-mark:#b78339; --cream:#faf2e2;
  --lilac:#6f5f8f; --lilac-pale:#f0edf6; --blue:#44708d; --blue-pale:#eaf2f7;
  --alarm:#ad403e; --alarm-pale:#f8e9e7;
  --on-teal:#ffffff; --band:#203b38; --band-ink:#eef4f0; --band-muted:#b5c8c2;
  --display:"Bricolage Grotesque", "Manrope", system-ui, sans-serif;
  --body:"Manrope", system-ui, -apple-system, "Segoe UI", sans-serif;
  --mono:"JetBrains Mono", ui-monospace, "Cascadia Mono", Consolas, monospace;
  --max:1180px; --r:16px; --r-sm:10px;
}
@media (prefers-color-scheme: dark){
  :root:not([data-theme="light"]){
    color-scheme:dark;
    --page:#101b19; --surface:#172623; --ink:#e4ede9; --muted:#9fb3ad; --line:#2a3d39;
    --teal:#4fb39f; --teal-hover:#6cc6b3; --teal-text:#6cc6b3; --mint:#1c3430;
    --ochre:#e0b46e; --ochre-mark:#d4a45a; --cream:#2e2718;
    --lilac:#b7a8d6; --lilac-pale:#26213a; --blue:#8fb8d4; --blue-pale:#1a2a36;
    --alarm:#e88a86; --alarm-pale:#3a1f1e;
    --on-teal:#0d1a17; --band:#0b1412; --band-ink:#e4ede9; --band-muted:#9fb3ad;
  }
}
:root[data-theme="dark"]{
  color-scheme:dark;
  --page:#101b19; --surface:#172623; --ink:#e4ede9; --muted:#9fb3ad; --line:#2a3d39;
  --teal:#4fb39f; --teal-hover:#6cc6b3; --teal-text:#6cc6b3; --mint:#1c3430;
  --ochre:#e0b46e; --ochre-mark:#d4a45a; --cream:#2e2718;
  --lilac:#b7a8d6; --lilac-pale:#26213a; --blue:#8fb8d4; --blue-pale:#1a2a36;
  --alarm:#e88a86; --alarm-pale:#3a1f1e;
  --on-teal:#0d1a17; --band:#0b1412; --band-ink:#e4ede9; --band-muted:#9fb3ad;
}

*{box-sizing:border-box}
html{scroll-behavior:smooth}
@media (prefers-reduced-motion: reduce){html{scroll-behavior:auto}*{animation:none!important;transition:none!important}}
body{background:var(--page);color:var(--ink);font:400 16px/1.65 var(--body);-webkit-font-smoothing:antialiased}
a{color:var(--teal-text)}
:focus-visible{outline:3px solid var(--teal);outline-offset:3px;border-radius:6px}
.wrap{max-width:var(--max);margin-inline:auto;padding-inline:clamp(16px,4vw,32px)}
h1,h2,h3{font-family:var(--display);line-height:1.08;text-wrap:balance;margin:0;letter-spacing:-.015em}
h2{font-size:clamp(30px,4.2vw,46px);font-weight:700}
h3{font-size:21px;font-weight:700;line-height:1.25;letter-spacing:-.005em}
p{margin:0}
.eyebrow{font:500 12.5px/1 var(--mono);letter-spacing:.08em;text-transform:uppercase;color:var(--teal-text)}
.lede{font-size:clamp(17px,1.6vw,19px);color:var(--muted);max-width:60ch}
section{padding-block:clamp(64px,9vw,112px)}
.sec-head{display:grid;gap:16px;max-width:760px;margin-bottom:clamp(36px,5vw,56px)}

/* buttons */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;min-height:48px;padding:0 22px;border-radius:999px;font:700 15.5px/1 var(--body);text-decoration:none;border:1.5px solid transparent;cursor:pointer;transition:background .18s ease-out,color .18s ease-out,border-color .18s ease-out}
.btn-primary{background:var(--teal);color:var(--on-teal)}
.btn-primary:hover{background:var(--teal-hover)}
.btn-ghost{border-color:var(--line);color:var(--ink);background:var(--surface)}
.btn-ghost:hover{border-color:var(--teal)}

/* nav */
.nav{position:sticky;top:env(safe-area-inset-top,0px);z-index:20;background:color-mix(in srgb,var(--page) 88%,transparent);backdrop-filter:blur(10px);border-bottom:1px solid var(--line)}
.nav .wrap{display:flex;align-items:center;gap:24px;min-height:68px}
.brand{display:flex;align-items:baseline;gap:10px;text-decoration:none;color:var(--ink);margin-right:auto}
.brand b{font:800 26px/1 var(--display);letter-spacing:-.03em}
.brand b i{font-style:normal;color:var(--teal)}
.brand span{font:500 11px/1 var(--mono);letter-spacing:.1em;text-transform:uppercase;color:var(--muted)}
.nav-links{display:flex;gap:4px}
.nav-links a{color:var(--ink);text-decoration:none;font-weight:600;font-size:15px;padding:10px 12px;border-radius:8px}
.nav-links a:hover{background:var(--mint)}
@media (max-width:900px){.nav-links{display:none}.brand span{display:none}}

/* hero */
.hero{padding-block:clamp(48px,7vw,88px) clamp(56px,8vw,96px)}
.hero .wrap{display:grid;grid-template-columns:1.05fr .95fr;gap:clamp(32px,5vw,64px);align-items:center}
.hero h1{font-size:clamp(44px,6.6vw,80px);font-weight:800;letter-spacing:-.035em}
.hero h1 em{font-style:normal;color:var(--teal);position:relative;white-space:nowrap}
.hero h1 em::after{content:"";position:absolute;left:0;right:0;bottom:.06em;height:.12em;background:var(--ochre-mark);opacity:.45;border-radius:2px}
.hero-copy{display:grid;gap:24px}
.hero-ctas{display:flex;flex-wrap:wrap;gap:12px}
.hero-note{font-size:14px;color:var(--muted)}
.hero-note strong{color:var(--ink)}
@media (max-width:940px){.hero .wrap{grid-template-columns:1fr}}

/* trail card */
.trail{background:var(--surface);border:1px solid var(--line);border-radius:var(--r);overflow:hidden;box-shadow:0 24px 48px -32px rgba(20,50,45,.35)}
.trail-top{display:flex;justify-content:space-between;align-items:center;gap:12px;padding:14px 18px;border-bottom:1px solid var(--line);font:500 12.5px/1.3 var(--mono);color:var(--muted)}
.trail-top b{color:var(--ink);font-weight:500}
.dot{display:inline-block;width:8px;height:8px;border-radius:50%;background:var(--teal);margin-right:8px;vertical-align:1px}
.trail-doc{padding:20px 18px;font-size:16.5px;line-height:1.75;border-bottom:1px solid var(--line)}
.seg{border-radius:4px;padding:1px 2px;box-decoration-break:clone;-webkit-box-decoration-break:clone;transition:outline-color .2s ease-out;outline:2px solid transparent;outline-offset:1px}
.seg-typed{background:var(--mint)}
.seg-spoken{background:var(--blue-pale)}
.seg-quote{background:var(--lilac-pale)}
.seg-paste{background:var(--cream)}
.seg.is-on{outline-color:var(--teal)}
.trail-log{list-style:none;margin:0;padding:6px 0}
.trail-log li{display:grid;grid-template-columns:52px 1fr;gap:12px;padding:9px 18px;font-size:14px;line-height:1.45;transition:background .2s ease-out}
.trail-log li.is-on{background:var(--page)}
.trail-log time{font:500 12.5px/1.6 var(--mono);color:var(--muted);font-variant-numeric:tabular-nums}
.chip{display:inline-block;font:500 11.5px/1 var(--mono);letter-spacing:.03em;padding:4px 7px;border-radius:5px;margin-right:6px;vertical-align:1px}
.chip-typed{background:var(--mint);color:var(--teal-text)}
.chip-spoken{background:var(--blue-pale);color:var(--blue)}
.chip-quote{background:var(--lilac-pale);color:var(--lilac)}
.chip-paste{background:var(--cream);color:var(--ochre)}
.chip-mentor{background:var(--page);color:var(--muted);border:1px solid var(--line)}
.chip-check{background:var(--teal);color:var(--on-teal)}
.trail-foot{padding:12px 18px;border-top:1px solid var(--line);font-size:13px;color:var(--muted);background:var(--page)}

/* problem band */
.band{background:var(--band);color:var(--band-ink)}
.band .eyebrow{color:#7fd1bf}
.band .lede{color:var(--band-muted)}
.problem-grid{display:grid;grid-template-columns:1fr 1fr;gap:clamp(32px,5vw,72px);align-items:start}
@media (max-width:900px){.problem-grid{grid-template-columns:1fr}}
.asym{display:grid;grid-template-columns:1fr 1fr;border:1px solid rgba(255,255,255,.14);border-radius:var(--r);overflow:hidden}
.asym > div{padding:22px}
.asym > div + div{border-left:1px solid rgba(255,255,255,.14)}
.asym h3{font-size:18px;margin-bottom:12px}
.asym ul{margin:0;padding-left:18px;color:var(--band-muted);font-size:15px;display:grid;gap:8px}
.asym .tag{font:500 11.5px/1 var(--mono);letter-spacing:.08em;text-transform:uppercase;color:var(--band-muted);display:block;margin-bottom:10px}
@media (max-width:520px){.asym{grid-template-columns:1fr}.asym > div + div{border-left:0;border-top:1px solid rgba(255,255,255,.14)}}

.collide{margin-top:clamp(40px,6vw,64px);display:grid;grid-template-columns:1fr auto 1fr;gap:20px;align-items:stretch}
.collide figure{margin:0;padding:22px;border-radius:var(--r);border:1px solid rgba(255,255,255,.14);display:grid;gap:12px;align-content:start}
.collide figcaption{font:500 12px/1.4 var(--mono);letter-spacing:.04em;color:var(--band-muted)}
.collide blockquote{margin:0;font:500 clamp(17px,1.8vw,20px)/1.5 var(--body)}
.collide mark{background:rgba(212,164,90,.3);color:inherit;border-radius:3px;padding:0 2px}
.collide .paywall{background:repeating-linear-gradient(-45deg,rgba(255,255,255,.035) 0 10px,transparent 10px 20px)}
.collide .vs{align-self:center;font:500 12px/1.3 var(--mono);color:#e7a09c;text-align:center;max-width:110px}
.collide-note{margin-top:20px;color:var(--band-muted);font-size:15px;max-width:72ch}
@media (max-width:820px){.collide{grid-template-columns:1fr}.collide .vs{max-width:none}}

/* steps */
.steps{display:grid;grid-template-columns:repeat(5,1fr);gap:0;border-top:1px solid var(--line)}
.step{padding:24px 22px 8px 0;display:grid;gap:10px;align-content:start;border-right:1px solid var(--line);padding-left:22px}
.step:first-child{padding-left:0}
.step:last-child{border-right:0}
.step .n{font:500 13px/1 var(--mono);color:var(--teal-text)}
.step p{color:var(--muted);font-size:15px}
@media (max-width:1000px){.steps{grid-template-columns:1fr 1fr}.step{border-right:0;border-bottom:1px solid var(--line);padding:22px 20px 22px 0}.step:first-child{padding-left:0}}
@media (max-width:560px){.steps{grid-template-columns:1fr}}

/* students */
.split{display:grid;grid-template-columns:.9fr 1.1fr;gap:clamp(32px,5vw,72px);align-items:start}
@media (max-width:900px){.split{grid-template-columns:1fr}}
.features{display:grid;grid-template-columns:1fr 1fr;gap:1px;background:var(--line);border:1px solid var(--line);border-radius:var(--r);overflow:hidden}
.feature{background:var(--surface);padding:24px;display:grid;gap:10px;align-content:start}
.feature p{color:var(--muted);font-size:15px}
.feature svg{width:26px;height:26px;stroke:var(--teal);fill:none;stroke-width:1.8;stroke-linecap:round;stroke-linejoin:round}
@media (max-width:620px){.features{grid-template-columns:1fr}}

.mentor-demo{margin-top:28px;background:var(--mint);border-radius:var(--r);padding:22px;display:grid;gap:12px}
.bubble{max-width:88%;padding:12px 16px;border-radius:14px;font-size:15px;line-height:1.5}
.bubble.me{background:var(--surface);justify-self:end;border:1px solid var(--line);border-bottom-right-radius:4px}
.bubble.ai{background:var(--surface);border-bottom-left-radius:4px;border:1px solid var(--line)}
.bubble .who{display:block;font:500 11.5px/1 var(--mono);letter-spacing:.05em;color:var(--muted);margin-bottom:6px}

/* schools */
.schools{background:var(--surface);border-block:1px solid var(--line)}
.review{border:1px solid var(--line);border-radius:var(--r);overflow:hidden;background:var(--page)}
.review-bar{display:flex;flex-wrap:wrap;align-items:center;gap:10px 20px;padding:14px 20px;background:var(--surface);border-bottom:1px solid var(--line)}
.review-bar strong{font-family:var(--display);font-size:18px}
.review-bar span{font-size:14px;color:var(--muted)}
.review-bar .pill{margin-left:auto;font:500 12px/1 var(--mono);padding:7px 10px;border-radius:999px;background:var(--mint);color:var(--teal-text)}
.review-body{display:grid;grid-template-columns:1.25fr .75fr}
@media (max-width:860px){.review-body{grid-template-columns:1fr}}
.review-doc{padding:24px;background:var(--surface);border-right:1px solid var(--line);min-height:260px}
.review-doc .doc-text{font-size:17px;line-height:1.8;max-width:62ch}
.review-side{padding:22px;display:grid;gap:14px;align-content:start}
.review-side h3{font-size:16px}
.ev{display:grid;gap:6px;font-size:14.5px}
.ev .meta{font:500 12.5px/1.4 var(--mono);color:var(--muted)}
.ev .detail{background:var(--surface);border:1px solid var(--line);border-radius:var(--r-sm);padding:12px 14px;display:grid;gap:6px}
.ev .detail dt{font:500 11.5px/1 var(--mono);color:var(--muted);letter-spacing:.04em}
.ev .detail dd{margin:0 0 4px}
.scrub{padding:18px 20px 20px;border-top:1px solid var(--line);background:var(--surface);display:grid;gap:10px}
.scrub-row{display:flex;align-items:center;gap:14px}
.scrub label{font:500 12.5px/1 var(--mono);color:var(--muted);white-space:nowrap}
.scrub input[type=range]{flex:1;accent-color:var(--teal);min-height:44px;cursor:pointer}
.ticks{display:flex;justify-content:space-between;font:500 11.5px/1 var(--mono);color:var(--muted);font-variant-numeric:tabular-nums;padding-inline:4px}
.legend{display:flex;flex-wrap:wrap;gap:8px 4px}

.promises{display:grid;grid-template-columns:repeat(3,1fr);gap:clamp(24px,3vw,40px);margin-top:clamp(40px,6vw,64px)}
.promise{display:grid;gap:10px;align-content:start}
.promise p{color:var(--muted);font-size:15px}
@media (max-width:860px){.promises{grid-template-columns:1fr}}

/* won't */
.wont{display:grid;grid-template-columns:repeat(4,1fr);gap:16px}
.wont li{list-style:none;padding:22px;border:1px dashed var(--line);border-radius:var(--r);display:grid;gap:8px;align-content:start;background:var(--surface)}
.wont li b{font-family:var(--display);font-size:19px;line-height:1.25}
.wont li b s{text-decoration-color:var(--alarm);text-decoration-thickness:2px}
.wont li span{color:var(--muted);font-size:15px}
.wont{padding:0;margin:0}
@media (max-width:1000px){.wont{grid-template-columns:1fr 1fr}}
@media (max-width:560px){.wont{grid-template-columns:1fr}}

/* manifesto */
.manifesto{padding-block:clamp(56px,8vw,96px)}
.manifesto blockquote{margin:0;font:700 clamp(26px,3.6vw,40px)/1.22 var(--display);letter-spacing:-.02em;max-width:26ch;text-wrap:balance}
.manifesto blockquote span{color:var(--teal)}
.manifesto p{margin-top:20px;color:var(--muted);max-width:62ch}

/* faq */
.faq{display:grid;gap:0;border-top:1px solid var(--line);max-width:860px}
.faq details{border-bottom:1px solid var(--line)}
.faq summary{cursor:pointer;list-style:none;padding:20px 40px 20px 0;font:700 18px/1.4 var(--body);position:relative;min-height:44px}
.faq summary::-webkit-details-marker{display:none}
.faq summary::after{content:"+";position:absolute;right:6px;top:16px;font:500 24px/1 var(--mono);color:var(--teal)}
.faq details[open] summary::after{content:"–"}
.faq details p{padding:0 0 22px;color:var(--muted);max-width:68ch}

/* pilot */
.pilot{background:var(--mint)}
.pilot .wrap{display:grid;grid-template-columns:1fr 1fr;gap:clamp(32px,5vw,64px);align-items:start}
@media (max-width:900px){.pilot .wrap{grid-template-columns:1fr}}
form{background:var(--surface);border:1px solid var(--line);border-radius:var(--r);padding:clamp(20px,3vw,28px);display:grid;gap:16px}
.field{display:grid;gap:6px}
.field label{font-weight:700;font-size:14.5px}
.field input,.field select{min-height:48px;border:1px solid var(--line);border-radius:var(--r-sm);padding:0 14px;font:500 16px var(--body);color:var(--ink);background:var(--page)}
.field input:focus,.field select:focus{outline:2px solid var(--teal);outline-offset:1px}
.roles{display:flex;flex-wrap:wrap;gap:8px;border:0;padding:0;margin:0}
.roles legend{font-weight:700;font-size:14.5px;margin-bottom:6px;padding:0}
.roles label{display:inline-flex;align-items:center;gap:8px;min-height:44px;padding:0 14px;border:1px solid var(--line);border-radius:999px;cursor:pointer;font-weight:600;font-size:15px;background:var(--page)}
.roles input{accent-color:var(--teal)}
.roles label:has(input:checked){border-color:var(--teal);background:var(--mint)}
.form-msg{font-size:14.5px;color:var(--teal-text);font-weight:600}

footer{padding-block:40px;border-top:1px solid var(--line);font-size:14px;color:var(--muted)}
footer .wrap{display:flex;flex-wrap:wrap;gap:12px 32px;justify-content:space-between;align-items:center}

body{margin:0}.nav-signin{color:var(--ink);font-weight:600;white-space:nowrap;min-height:44px;display:inline-flex;align-items:center}.account-entry{background:var(--surface);border:1px solid var(--line);border-radius:16px;padding:28px}.account-entry ol{padding-left:22px;margin:20px 0;display:grid;gap:12px}.account-entry p{margin-top:16px}@media(max-width:520px){.nav .wrap{gap:12px;flex-wrap:wrap;padding-block:12px}.nav .btn{min-height:44px;padding:0 14px;font-size:14px}.nav .brand b{font-size:23px}}