:root{
  --text-xs: clamp(0.75rem, 0.7rem + 0.25vw, 0.875rem);
  --text-sm: clamp(0.875rem, 0.8rem + 0.35vw, 1rem);
  --text-base: clamp(1rem, 0.95rem + 0.25vw, 1.125rem);
  --text-lg: clamp(1.125rem, 1rem + 0.75vw, 1.5rem);
  --text-xl: clamp(1.5rem, 1.2rem + 1.25vw, 2.25rem);
  --text-hero: clamp(2.5rem, 1rem + 4.2vw, 5rem);
  --font-display: 'Zodiak', 'Georgia', serif;
  --font-body: 'Switzer', 'Helvetica Neue', sans-serif;

  --bg: #f4efe6;
  --surface: #fbf8f2;
  --ink: #1d2422;
  --muted: #5d6662;
  --line: rgba(29,36,34,.12);
  --brand: #1f3a33;
  --brand-ink: #f4efe6;
  --accent: #c98a2c;
  --accent-soft: #f1dfbf;
  --cell: 31 58 51;
  --radius-sm: 6px; --radius-md: 10px; --radius-lg: 16px;
  --shadow: 0 1px 2px rgba(31,40,34,.06), 0 8px 24px rgba(31,40,34,.06);
}
@media (prefers-color-scheme: dark){
  :root{
    --bg: #121816; --surface: #19211e; --ink: #e9e4da; --muted: #a3aaa5;
    --line: rgba(233,228,218,.12); --brand: #9cc7b6; --brand-ink: #121816;
    --accent: #e0a64a; --accent-soft: #3a2f1c; --cell: 156 199 182;
    --shadow: 0 1px 2px rgba(0,0,0,.3), 0 8px 24px rgba(0,0,0,.25);
  }
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth;scroll-padding-top:5rem;-webkit-text-size-adjust:100%}
body{margin:0;background:var(--bg);color:var(--ink);font-family:var(--font-body);font-size:var(--text-base);line-height:1.6;-webkit-font-smoothing:antialiased}
img,svg{display:block}
a{color:inherit}
h1,h2,h3{margin:0;line-height:1.1;letter-spacing:-.01em}
h1,h2{font-family:var(--font-display);font-weight:500}
h1{font-size:var(--text-hero);letter-spacing:-.02em}
h2{font-size:var(--text-xl)}
h3{font-size:var(--text-lg);font-weight:600}
p{margin:0}
:focus-visible{outline:2px solid var(--accent);outline-offset:3px;border-radius:4px}
@media (prefers-reduced-motion: reduce){*{animation:none!important;transition:none!important;scroll-behavior:auto!important}}

.skip{position:absolute;left:-9999px;top:0;background:var(--brand);color:var(--brand-ink);padding:.5rem 1rem;z-index:100}
.skip:focus{left:1rem;top:1rem}
.wrap{width:min(1160px,100% - 2*clamp(1.25rem,4vw,3rem));margin-inline:auto}

.header{position:sticky;top:0;z-index:50;background:color-mix(in srgb,var(--bg) 88%,transparent);backdrop-filter:blur(12px);border-bottom:1px solid transparent;transition:border-color .3s}
.header.is-scrolled{border-bottom-color:var(--line)}
.header__inner{display:flex;align-items:center;gap:2rem;height:4.25rem}
.brand{display:flex;align-items:center;gap:.6rem;text-decoration:none;font-weight:600;font-size:var(--text-sm);color:var(--brand)}
.brand span{color:var(--ink)}
.logo{width:28px;height:28px}
.nav{display:flex;gap:1.75rem;margin-left:auto;font-size:var(--text-sm)}
.nav a{text-decoration:none;color:var(--muted)}
.nav a:hover{color:var(--ink)}
@media (max-width:820px){.nav{display:none}.header__inner .btn--small{margin-left:auto}}

.btn{display:inline-flex;align-items:center;justify-content:center;min-height:48px;padding:.75rem 1.4rem;border-radius:var(--radius-sm);background:var(--brand);color:var(--brand-ink);font:600 var(--text-sm)/1 var(--font-body);text-decoration:none;border:0;cursor:pointer;transition:transform .15s,background .2s}
.btn:hover{transform:translateY(-1px)}
.btn:active{transform:translateY(0)}
.btn--small{min-height:40px;padding:.55rem 1rem}
.link{font-weight:600;font-size:var(--text-sm);text-underline-offset:4px;color:var(--brand)}
.eyebrow{font-size:var(--text-xs);text-transform:uppercase;letter-spacing:.12em;color:var(--muted);font-weight:600;margin-bottom:1rem}

.hero{padding-block:clamp(3rem,8vw,7rem) clamp(3rem,6vw,5rem)}
.hero__grid{display:grid;grid-template-columns:1.1fr .9fr;gap:clamp(2rem,5vw,5rem);align-items:center}
.hero h1{max-width:13ch}
.lede{margin-top:1.5rem;max-width:52ch;color:var(--muted)}
.hero__ctas{display:flex;flex-wrap:wrap;align-items:center;gap:1.5rem;margin-top:2rem}
@media (max-width:900px){.hero__grid{grid-template-columns:1fr}}

.cohort{margin:0;background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-lg);padding:clamp(1rem,2.5vw,1.75rem);box-shadow:var(--shadow)}
.cohort__head,.cohort__row{display:grid;grid-template-columns:4.5rem repeat(6,1fr);gap:4px;align-items:center}
.cohort__head{font-size:var(--text-xs);color:var(--muted);margin-bottom:6px}
.cohort__head span:not(:first-child){text-align:center}
.cohort__rows{display:grid;gap:4px}
.cohort__row .lbl{font-size:var(--text-xs);color:var(--muted)}
.cell{height:38px;border-radius:5px;display:grid;place-items:center;font:500 .72rem/1 var(--font-body);font-variant-numeric:tabular-nums;transition:background-color .5s ease,color .5s ease}
.cell--empty{background:transparent}
.cohort__toggle{display:flex;flex-wrap:wrap;gap:.5rem;margin-top:1rem}
.chip{font:500 var(--text-xs)/1.2 var(--font-body);padding:.55rem .85rem;min-height:36px;border-radius:999px;border:1px solid var(--line);background:transparent;color:var(--muted);cursor:pointer}
.chip.is-on{background:var(--brand);color:var(--brand-ink);border-color:var(--brand)}
.cohort figcaption{margin-top:.9rem;font-size:var(--text-xs);color:var(--muted)}

.math{padding-block:clamp(3rem,7vw,6rem);background:var(--surface);border-block:1px solid var(--line)}
.math__grid{display:grid;grid-template-columns:.8fr 1.2fr;gap:clamp(2rem,5vw,5rem);align-items:start}
.math__grid > div p{margin-top:1rem;color:var(--muted);max-width:40ch}
.math__grid a{color:var(--brand);text-underline-offset:3px}
@media (max-width:900px){.math__grid{grid-template-columns:1fr}}
.calc{display:grid;grid-template-columns:1fr 1fr;gap:1.25rem}
.calc label{display:grid;gap:.4rem;font-size:var(--text-sm);font-weight:500}
.calc label:nth-of-type(3){grid-column:1/-1}
input[type=number],input[type=url],input[type=email]{width:100%;min-height:48px;padding:.7rem .9rem;border:1px solid var(--line);border-radius:var(--radius-sm);background:var(--bg);color:var(--ink);font:400 var(--text-base)/1.2 var(--font-body)}
input:focus{outline:2px solid var(--accent);outline-offset:1px}
.prefix{position:relative;display:block}
.prefix > span{position:absolute;left:.9rem;top:50%;transform:translateY(-50%);color:var(--muted)}
.prefix input{padding-left:1.8rem}
.range{display:flex;align-items:center;gap:1rem}
.range input{flex:1;accent-color:var(--brand);min-height:44px}
.range output{font-variant-numeric:tabular-nums;font-weight:600;min-width:3.5rem;text-align:right}
.calc__out{grid-column:1/-1;margin:0;display:grid;grid-template-columns:repeat(3,1fr);gap:1px;background:var(--line);border:1px solid var(--line);border-radius:var(--radius-md);overflow:hidden}
.calc__out div{background:var(--bg);padding:1rem 1.1rem}
.calc__out dt{font-size:var(--text-xs);color:var(--muted)}
.calc__out dd{margin:.35rem 0 0;font:500 var(--text-lg)/1.2 var(--font-display);font-variant-numeric:tabular-nums}
.calc__out .hl{background:var(--accent-soft)}
@media (max-width:640px){.calc{grid-template-columns:1fr}.calc__out{grid-template-columns:1fr}}
.note{font-size:var(--text-xs);color:var(--muted);grid-column:1/-1}

.install{padding-block:clamp(4rem,9vw,8rem)}
.sub{margin-top:.75rem;color:var(--muted);max-width:56ch}
.parts{list-style:none;margin:2.5rem 0 0;padding:0;display:grid;grid-template-columns:repeat(6,1fr);gap:1.25rem}
.part{grid-column:span 2;background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-md);padding:1.5rem}
.part--lead{grid-column:span 4;grid-row:span 2;background:var(--brand);color:var(--brand-ink);border-color:var(--brand);display:flex;flex-direction:column;justify-content:flex-end;min-height:280px}
.part--lead p{color:color-mix(in srgb,var(--brand-ink) 82%,transparent);max-width:44ch}
.part--lead h3{font-family:var(--font-display);font-weight:500;font-size:var(--text-xl)}
.part p{margin-top:.6rem;font-size:var(--text-sm);color:var(--muted)}
.part--lead p{font-size:var(--text-base)}
.num{font:500 var(--text-xs)/1 var(--font-body);letter-spacing:.1em;color:var(--accent);display:block;margin-bottom:auto;padding-bottom:1.25rem}
.part:not(.part--lead) .num{margin-bottom:.75rem;padding-bottom:0}
.parts .part:nth-child(4){grid-column:1/-1;display:grid;grid-template-columns:auto 1fr 2fr;gap:1rem 2rem;align-items:baseline}
.parts .part:nth-child(4) p{margin-top:0}
@media (max-width:900px){.part,.part--lead{grid-column:1/-1;grid-row:auto;min-height:0}.parts .part:nth-child(4){display:block}}

.sample{padding-block:clamp(3rem,7vw,6rem);border-top:1px solid var(--line)}
.sample__grid{display:grid;grid-template-columns:1fr 1fr;gap:clamp(2rem,6vw,6rem);align-items:center}
.sample__grid > div p:last-child{margin-top:1rem;color:var(--muted)}
.quote{margin:0;padding:clamp(1.5rem,3vw,2.5rem);background:var(--accent-soft);border-radius:var(--radius-lg)}
.quote p{font:400 var(--text-lg)/1.45 var(--font-display)}
.quote footer{margin-top:1.25rem;font-size:var(--text-xs);color:var(--muted)}
@media (max-width:900px){.sample__grid{grid-template-columns:1fr}}

.how{padding-block:clamp(3rem,7vw,6rem);background:var(--surface);border-block:1px solid var(--line)}
.timeline{list-style:none;padding:0;margin:2.5rem 0 0;display:grid;grid-template-columns:repeat(5,1fr);border-top:2px solid var(--brand)}
.timeline li{padding:1.25rem 1.25rem 0 0;position:relative}
.timeline li::before{content:"";position:absolute;top:-7px;left:0;width:12px;height:12px;border-radius:50%;background:var(--bg);border:2px solid var(--brand)}
.timeline li:nth-child(4)::before{background:var(--accent);border-color:var(--accent)}
.day{display:block;font-weight:600;font-size:var(--text-sm);margin-bottom:.4rem}
.timeline p{font-size:var(--text-sm);color:var(--muted)}
@media (max-width:820px){.timeline{grid-template-columns:1fr;border-top:0;border-left:2px solid var(--brand);gap:1.25rem;padding-left:1.5rem}.timeline li{padding:0}.timeline li::before{left:calc(-1.5rem - 7px);top:.35rem}}

.pricing{padding-block:clamp(4rem,9vw,8rem)}
.pricing__grid{display:grid;grid-template-columns:1.3fr .7fr;gap:1.25rem;align-items:stretch}
.plan{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-lg);padding:clamp(1.5rem,3vw,2.5rem)}
.plan--main{box-shadow:var(--shadow)}
.price{margin-top:1rem;color:var(--muted);font-size:var(--text-sm)}
.price span{font:500 var(--text-hero)/1 var(--font-display);color:var(--ink);letter-spacing:-.02em;margin-right:.35rem}
.price--sm span{font-size:var(--text-xl)}
.plan ul{margin:1.75rem 0 2rem;padding:0;list-style:none;display:grid;gap:.7rem}
.plan li{padding-left:1.6rem;position:relative}
.plan li::before{content:"";position:absolute;left:0;top:.55em;width:10px;height:10px;border-radius:2px;background:var(--brand)}
.plan .note{margin-top:1rem}
.plan:not(.plan--main) p:last-child{margin-top:1rem;color:var(--muted);font-size:var(--text-sm)}
@media (max-width:820px){.pricing__grid{grid-template-columns:1fr}}

.teardown{padding-block:clamp(4rem,8vw,7rem);background:var(--brand);color:var(--brand-ink)}
.teardown__grid{display:grid;grid-template-columns:1fr 1fr;gap:clamp(2rem,6vw,6rem);align-items:start}
.teardown__grid > div p{margin-top:1rem;color:color-mix(in srgb,var(--brand-ink) 80%,transparent);max-width:44ch}
.form{display:grid;gap:1rem}
.form label{display:grid;gap:.4rem;font-size:var(--text-sm);font-weight:500}
.form input{background:color-mix(in srgb,var(--brand-ink) 8%,var(--brand));border-color:color-mix(in srgb,var(--brand-ink) 25%,transparent);color:var(--brand-ink)}
.form input::placeholder{color:color-mix(in srgb,var(--brand-ink) 50%,transparent)}
.form .btn{background:var(--accent);color:#1d2422;justify-self:start}
.form__msg{font-size:var(--text-sm);min-height:1.5em}
@media (max-width:820px){.teardown__grid{grid-template-columns:1fr}}

.faq{padding-block:clamp(4rem,8vw,7rem)}
.faq__wrap{max-width:760px}
.faq h2{margin-bottom:1.5rem}
details{border-top:1px solid var(--line);padding:1.1rem 0}
details:last-child{border-bottom:1px solid var(--line)}
summary{cursor:pointer;font-weight:600;list-style:none;display:flex;justify-content:space-between;gap:1rem;min-height:44px;align-items:center}
summary::-webkit-details-marker{display:none}
summary::after{content:"+";font-weight:400;font-size:1.4rem;color:var(--muted);transition:transform .2s}
details[open] summary::after{transform:rotate(45deg)}
details p{margin-top:.5rem;color:var(--muted);max-width:62ch}

.footer{border-top:1px solid var(--line);padding-block:2rem;font-size:var(--text-xs);color:var(--muted)}
.footer__inner{display:flex;justify-content:space-between;gap:1rem;flex-wrap:wrap}