:root{
  --bg:#f3f3ee;
  --surface:#eae9e1;
  --ink:#14160f;
  --muted:#5f6356;
  --line:rgba(20,22,15,.14);
  --accent:#a3e635;
  --accent-ink:#1a2708;
  --radius:10px;
  --max:1240px;
}
@media (prefers-color-scheme:dark){
  :root{
    --bg:#0f110d;
    --surface:#171a14;
    --ink:#eef0e6;
    --muted:#a3a99a;
    --line:rgba(238,240,230,.15);
    --accent:#b4f04a;
    --accent-ink:#15200a;
  }
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;background:var(--bg);color:var(--ink);
  font-family:"Sora",system-ui,sans-serif;font-size:16px;line-height:1.6;
  -webkit-font-smoothing:antialiased;overflow-x:hidden;
}
img{display:block;max-width:100%}
a{color:inherit;text-decoration:none}
h1,h2,h3,p{margin:0}
.mono{font-family:"Space Mono",monospace}
.dim{color:var(--muted)}
.sentinel{position:absolute;top:0;height:1px;width:1px}

.nav{
  position:sticky;top:0;z-index:40;height:64px;
  display:flex;align-items:center;justify-content:space-between;gap:2rem;
  padding:0 max(24px,calc((100vw - var(--max))/2));
  border-bottom:1px solid var(--line);
  background:color-mix(in srgb,var(--bg) 88%,transparent);
  backdrop-filter:blur(12px);
}
.brand{display:flex;align-items:center;gap:.55rem;font-weight:600;font-size:1.1rem;letter-spacing:-.03em}
.brand svg{color:var(--ink)}
.nav-links{display:flex;gap:1.9rem;font-size:.88rem;color:var(--muted)}
.nav-links a:hover{color:var(--ink)}
.btn{
  display:inline-flex;align-items:center;justify-content:center;
  background:var(--accent);color:var(--accent-ink);border:1px solid var(--accent);
  border-radius:var(--radius);padding:.8rem 1.2rem;font-weight:600;font-size:.92rem;
  white-space:nowrap;transition:transform .18s,filter .18s;
}
.btn:hover{filter:brightness(1.04)}
.btn:active{transform:translateY(1px)}
.btn-small{padding:.5rem .9rem;font-size:.84rem}
.btn-outline{background:transparent;color:var(--ink);border-color:var(--line)}
.btn-outline:hover{border-color:var(--ink)}
.btn-large{padding:1rem 1.5rem;font-size:1rem}
.link{display:inline-flex;gap:.4rem;color:var(--muted);font-size:.92rem;border-bottom:1px solid transparent;transition:.2s}
.link:hover{color:var(--ink);border-color:var(--line)}

.hero{
  max-width:var(--max);margin:0 auto;
  display:grid;grid-template-columns:1.02fr .98fr;gap:clamp(2rem,5vw,5rem);
  align-items:center;min-height:calc(100dvh - 64px);
  padding:clamp(2.5rem,5vh,4rem) 24px clamp(3rem,6vh,5rem);
}
.hero h1{font-size:clamp(3.2rem,7.2vw,6.4rem);line-height:.92;letter-spacing:-.055em;font-weight:700}
.lead{margin-top:1.7rem;max-width:40ch;color:var(--muted);font-size:clamp(1rem,1.35vw,1.14rem);line-height:1.6}
.actions{display:flex;align-items:center;gap:1.5rem;margin-top:2rem;flex-wrap:wrap}
.hero-visual{min-width:0}
.chart-panel{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);padding:1.25rem 1.25rem 1rem}
.chart-head{display:flex;justify-content:space-between;font-size:.72rem;color:var(--muted);border-bottom:1px solid var(--line);padding-bottom:.7rem}
.chart{width:100%;height:auto;display:block;margin-top:.6rem}
.chart .axis{stroke:var(--line);stroke-width:1}
.chart .grid{stroke:var(--line);stroke-width:1;stroke-dasharray:2 4}
.chart .used{fill:var(--accent)}
.chart .unused{fill:var(--muted);opacity:.35}
.chart .budget-line{stroke:var(--ink);stroke-width:1.2;stroke-dasharray:5 4}
.chart .lbl{fill:var(--muted);font-family:"Space Mono",monospace;font-size:11px}
.chart .budget-lbl{fill:var(--ink);font-family:"Space Mono",monospace;font-size:10px}
.chart .note{fill:var(--muted);font-family:"Space Mono",monospace;font-size:9px}
.chart-foot{font-size:.68rem;color:var(--muted);margin-top:.6rem;border-top:1px solid var(--line);padding-top:.7rem}

.strip{
  border-top:1px solid var(--line);border-bottom:1px solid var(--line);
  display:flex;justify-content:space-between;gap:1.5rem;flex-wrap:wrap;
  padding:1rem max(24px,calc((100vw - var(--max))/2));
  font-family:"Space Mono",monospace;font-size:.72rem;color:var(--muted);
}
.section{max-width:var(--max);margin:0 auto;padding:clamp(4.5rem,9vw,8rem) 24px;border-top:1px solid var(--line)}
.section h2{font-size:clamp(2rem,4.2vw,3.5rem);line-height:1.02;letter-spacing:-.045em;font-weight:700;max-width:18ch}
.body{color:var(--muted);font-size:1.02rem;line-height:1.65;max-width:56ch;margin-top:1.1rem}
.weight{display:grid;grid-template-columns:.9fr 1.1fr;gap:clamp(2rem,6vw,5rem);align-items:center}
.photo{position:relative;overflow:hidden;border-radius:var(--radius);background:var(--surface);aspect-ratio:4/3}
.photo img{width:100%;height:100%;object-fit:cover;filter:grayscale(.55) contrast(1.02)}
.photo::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,rgba(163,230,53,.16),rgba(20,22,15,.28));mix-blend-mode:multiply;pointer-events:none}
.plain-list{list-style:none;padding:0;margin:2rem 0 0;border-top:1px solid var(--line)}
.plain-list li{padding:.75rem 0;border-bottom:1px solid var(--line);color:var(--muted);font-size:.94rem}
.plain-list li::before{content:"+";color:var(--ink);font-family:"Space Mono",monospace;margin-right:.8rem}

.budget-layout{display:grid;grid-template-columns:1.1fr .9fr;gap:clamp(2rem,5vw,4rem);align-items:start;margin-top:2.5rem}
.budget-rows{margin-top:2rem;border-top:1px solid var(--line)}
.budget-row{display:grid;grid-template-columns:1.2fr .8fr .8fr;gap:1rem;padding:.8rem 0;border-bottom:1px solid var(--line);font-size:.85rem}
.budget-row:first-child{color:var(--muted);font-family:"Space Mono",monospace;font-size:.7rem}
.ok{color:var(--ink)}
.over{color:#b4442c}
@media (prefers-color-scheme:dark){.over{color:#ff8a6b}}
.code{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);padding:1.3rem;font-family:"Space Mono",monospace;font-size:.76rem;line-height:1.95;color:var(--ink);overflow-x:auto;margin:0}
.code .c{color:var(--muted)}

.energy{display:grid;grid-template-columns:1fr 1fr;gap:clamp(2rem,6vw,5rem);align-items:start}
.calc{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);padding:clamp(1.5rem,3vw,2.2rem)}
.calc h3{font-size:1.05rem;font-weight:600;margin-bottom:1.4rem}
.calc label{display:block;font-family:"Space Mono",monospace;font-size:.72rem;color:var(--muted);margin-bottom:.6rem}
input[type=range]{-webkit-appearance:none;appearance:none;width:100%;height:2px;background:var(--line);border-radius:2px;outline:none;margin:.5rem 0 1.6rem}
input[type=range]::-webkit-slider-thumb{-webkit-appearance:none;width:16px;height:16px;border-radius:50%;background:var(--accent);border:2px solid var(--bg);cursor:pointer}
input[type=range]:focus-visible{outline:2px solid var(--accent);outline-offset:6px}
.calc-out{display:grid;grid-template-columns:repeat(3,1fr);gap:1rem;border-top:1px solid var(--line);padding-top:1.2rem}
.calc-out div{display:flex;flex-direction:column;gap:.3rem}
.calc-out span{font-size:.68rem}
.calc-out strong{font-size:1.25rem;letter-spacing:-.03em;font-weight:600}
.calc-note{color:var(--muted);font-size:.72rem;margin-top:1.3rem}

.pricing h2{max-width:20ch}
.tiers{display:grid;grid-template-columns:repeat(3,1fr);gap:1px;background:var(--line);border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;margin-top:3rem}
.tier{background:var(--bg);padding:clamp(1.6rem,2.6vw,2.3rem);display:flex;flex-direction:column}
.tier-pop{background:var(--surface)}
.tier h3{font-size:1rem;font-weight:600}
.price{font-size:2rem;letter-spacing:-.04em;margin-top:1rem;font-weight:700}
.tier-note{color:var(--muted);font-size:.85rem;margin-top:.35rem;min-height:2.6em}
.tier ul{list-style:none;padding:0;margin:1.6rem 0 2rem;border-top:1px solid var(--line)}
.tier li{padding:.6rem 0;border-bottom:1px solid var(--line);color:var(--muted);font-size:.88rem}
.tier .btn{margin-top:auto;width:100%}

.cta{max-width:var(--max);margin:0 auto;display:flex;align-items:center;justify-content:space-between;gap:2rem;flex-wrap:wrap;padding:clamp(3.5rem,7vw,6rem) 24px;border-top:1px solid var(--line)}
.cta h2{font-size:clamp(1.9rem,3.8vw,3rem);letter-spacing:-.045em;line-height:1.03;max-width:18ch}
.cta .body{margin-top:.9rem}
.footer{max-width:var(--max);margin:0 auto;padding:3.5rem 24px 2.5rem;border-top:1px solid var(--line);display:grid;grid-template-columns:1.2fr 1fr;gap:3rem}
.footer-brand span{font-weight:700;font-size:1.1rem}
.footer-brand p{color:var(--muted);font-size:.88rem;margin-top:.5rem;max-width:30ch}
.footer-links{display:flex;gap:4rem;justify-content:flex-end}
.footer-links div{display:flex;flex-direction:column;gap:.55rem;font-size:.86rem}
.footer-links span{color:var(--muted);font-family:"Space Mono",monospace;font-size:.7rem}
.footer-links a{opacity:.85}
.footer-links a:hover{opacity:1}
.copyright{grid-column:1/-1;color:var(--muted);font-size:.72rem;font-family:"Space Mono",monospace;border-top:1px solid var(--line);padding-top:1.4rem}

.reveal{opacity:0;transform:translateY(18px);transition:opacity .7s cubic-bezier(.16,1,.3,1),transform .7s cubic-bezier(.16,1,.3,1)}
.reveal.in{opacity:1;transform:none}

@media (max-width:960px){
  .hero{grid-template-columns:1fr;min-height:0;padding-top:3.2rem}
  .hero-visual{margin-top:2rem}
  .weight,.budget-layout,.energy{grid-template-columns:1fr}
  .tiers{grid-template-columns:1fr}
  .footer{grid-template-columns:1fr}
  .footer-links{justify-content:flex-start}
}
@media (max-width:640px){
  .nav-links{display:none}
  .hero h1{font-size:clamp(2.7rem,13vw,4rem)}
  .strip{flex-direction:column;gap:.4rem}
  .calc-out{grid-template-columns:1fr;gap:.7rem}
  .cta{flex-direction:column;align-items:flex-start}
}
@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  .reveal{opacity:1;transform:none;transition:none}
  *{animation-duration:.001ms!important;transition-duration:.001ms!important}
}