:root{
  --bg:#0f1115; --bg-alt:#12151b; --panel:#171a21; --line:#262b35;
  --text:#e8eaf0; --muted:#9aa3b2; --accent:#6ee7b7; --accent-ink:#06281c;
  --radius:14px;
}
@media (prefers-color-scheme: light){
  :root{
    --bg:#ffffff; --bg-alt:#f5f7fa; --panel:#ffffff; --line:#e3e7ee;
    --text:#14181f; --muted:#566070; --accent:#0f9d6c; --accent-ink:#ffffff;
  }
}
*{box-sizing:border-box}
html{scroll-behavior:smooth;scroll-padding-top:76px}
body{margin:0;background:var(--bg);color:var(--text);font-family:system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;line-height:1.6;-webkit-font-smoothing:antialiased}
a{color:inherit}
img{max-width:100%}
.wrap{max-width:1040px;margin:0 auto;padding:0 20px}
.narrow{max-width:760px}
.center{text-align:center}
.skip{position:absolute;left:-999px;top:8px;background:var(--accent);color:var(--accent-ink);padding:8px 14px;border-radius:8px;z-index:100}
.skip:focus{left:8px}

/* header */
.site-header{position:sticky;top:0;z-index:50;background:color-mix(in srgb,var(--bg) 88%,transparent);backdrop-filter:blur(10px);border-bottom:1px solid var(--line)}
.bar{display:flex;align-items:center;justify-content:space-between;min-height:64px}
.logo{font-weight:700;letter-spacing:.06em;text-decoration:none}
.logo span{color:var(--accent)}
nav{display:flex;align-items:center;gap:22px}
nav a{color:var(--muted);text-decoration:none;font-size:.95rem}
nav a:hover{color:var(--text)}
nav .nav-cta{color:var(--accent-ink);background:var(--accent);padding:8px 16px;border-radius:9px;font-weight:600}
nav .nav-cta:hover{color:var(--accent-ink);filter:brightness(1.08)}
.menu-btn{display:none;background:none;border:1px solid var(--line);border-radius:9px;width:42px;height:42px;padding:0;cursor:pointer;flex-direction:column;align-items:center;justify-content:center;gap:5px}
.menu-btn span{display:block;width:18px;height:2px;background:var(--text);border-radius:2px}

/* type */
h1,h2,h3{line-height:1.15;margin:0}
h1{font-size:clamp(2.1rem,5vw,3.5rem);letter-spacing:-.02em}
h2{font-size:clamp(1.6rem,3.2vw,2.2rem);letter-spacing:-.01em}
h3{font-size:1.08rem}
.eyebrow{color:var(--accent);font-size:.82rem;font-weight:600;letter-spacing:.12em;text-transform:uppercase;margin:0 0 12px}
.lead{color:var(--muted);font-size:1.15rem;max-width:58ch}
.note{color:var(--muted);max-width:68ch;margin:14px 0 0;font-size:.95rem}

/* sections */
section{padding:84px 0}
section.alt{background:var(--bg-alt);border-block:1px solid var(--line)}
.sec-head{margin-bottom:36px}

/* hero */
.hero{padding:88px 0 80px}
.hero-grid{display:grid;grid-template-columns:1.4fr 1fr;gap:48px;align-items:center}
.hero h1{margin:0 0 20px}
.hero .lead{margin:0 0 30px}
.cta-row{display:flex;flex-wrap:wrap;gap:12px}
.btn{display:inline-block;background:var(--accent);color:var(--accent-ink);padding:13px 24px;border-radius:11px;font-weight:600;text-decoration:none;border:1px solid var(--accent)}
.btn:hover{filter:brightness(1.08)}
.btn.ghost{background:transparent;color:var(--text);border-color:var(--line)}
.btn.ghost:hover{border-color:var(--accent);filter:none}
.hero-card{background:var(--panel);border:1px solid var(--line);border-radius:var(--radius);padding:24px}
.hero-card h2{font-size:1rem;margin-bottom:14px;color:var(--muted);font-weight:600;text-transform:uppercase;letter-spacing:.08em}
.hero-card dl{margin:0}
.hero-card div{display:flex;justify-content:space-between;gap:16px;padding:11px 0;border-top:1px solid var(--line)}
.hero-card div:first-child{border-top:0}
.hero-card dt{color:var(--muted)}
.hero-card dd{margin:0;text-align:right;font-weight:500}

/* cards */
.grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(290px,1fr));gap:18px}
.card{background:var(--panel);border:1px solid var(--line);border-radius:var(--radius);padding:24px;transition:border-color .2s,transform .2s}
.card:hover{border-color:var(--accent);transform:translateY(-2px)}
.card h3{margin:14px 0 8px}
.card p{margin:0;color:var(--muted);font-size:.97rem}
.ico{display:inline-grid;place-items:center;width:42px;height:42px;border-radius:11px;background:color-mix(in srgb,var(--accent) 14%,transparent);color:var(--accent);font-weight:700}

/* chips */
.chips{list-style:none;margin:0;padding:0;display:flex;flex-wrap:wrap;gap:10px}
.chips li{border:1px solid var(--line);background:var(--panel);padding:8px 15px;border-radius:999px;font-size:.93rem}
.filters{display:flex;flex-wrap:wrap;gap:8px;margin-bottom:26px}
.chip{font:inherit;font-size:.9rem;color:var(--muted);background:transparent;border:1px solid var(--line);padding:7px 16px;border-radius:999px;cursor:pointer}
.chip:hover{color:var(--text);border-color:var(--accent)}
.chip.active{background:var(--accent);color:var(--accent-ink);border-color:var(--accent);font-weight:600}

/* work */
.work-grid{align-items:start;display:grid;grid-template-columns:repeat(auto-fit,minmax(300px,1fr));gap:18px}
.work{background:var(--panel);border:1px solid var(--line);border-radius:var(--radius);padding:24px;display:flex;flex-direction:column;gap:10px}
.work[hidden]{display:none}
.work .meta{margin:0;color:var(--accent);font-size:.8rem;font-weight:600;letter-spacing:.04em}
.work p{margin:0;color:var(--muted);font-size:.96rem}
.tags{list-style:none;margin:6px 0 0;padding:0;display:flex;flex-wrap:wrap;gap:6px}
.tags li{font-size:.78rem;color:var(--muted);border:1px solid var(--line);padding:2px 9px;border-radius:999px}
.out{color:var(--accent);text-decoration:none;font-weight:500;font-size:.93rem}
.out:hover{text-decoration:underline}
.work .out::after,.links .out::after{content:" \2197"}
.links{display:flex;flex-wrap:wrap;gap:6px 18px;margin:8px 0 0}
.center .links{justify-content:center}

/* steps */
.steps{list-style:none;margin:0;padding:0;display:grid;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:18px;counter-reset:step}
.steps li{counter-increment:step;background:var(--panel);border:1px solid var(--line);border-radius:var(--radius);padding:24px}
.steps li::before{content:counter(step,decimal-leading-zero);display:block;color:var(--accent);font-weight:700;margin-bottom:10px}
.steps h3{margin-bottom:8px}
.steps p{margin:0;color:var(--muted);font-size:.96rem}

/* about */
.about-grid{display:grid;grid-template-columns:1.2fr 1fr;gap:48px;align-items:start}
.about-grid p{color:var(--muted)}
.about-grid h2{margin-bottom:18px}
.values{list-style:none;margin:0;padding:0;display:grid;gap:12px}
.values li{background:var(--panel);border:1px solid var(--line);border-radius:var(--radius);padding:16px 18px;color:var(--muted);font-size:.96rem}
.values strong{color:var(--text)}

/* faq */
details{background:var(--panel);border:1px solid var(--line);border-radius:12px;padding:0 18px;margin-bottom:10px}
summary{cursor:pointer;padding:16px 0;font-weight:600;list-style:none}
summary::-webkit-details-marker{display:none}
summary::after{content:"+";float:right;color:var(--accent);font-size:1.2rem;line-height:1}
details[open] summary::after{content:"\2212"}
details p{margin:0 0 16px;color:var(--muted)}

/* contact */
#contact .lead{margin:14px auto 22px}
.mail{display:inline-block;color:var(--accent);font-size:clamp(1.15rem,3vw,1.6rem);font-weight:600;text-decoration:none;border-bottom:2px solid var(--accent)}

/* footer */
footer{border-top:1px solid var(--line);padding:30px 0;color:var(--muted);font-size:.86rem}
footer p{margin:4px 0}

/* reveal */
.reveal{opacity:0;transform:translateY(14px);transition:opacity .5s ease,transform .5s ease}
.reveal.in{opacity:1;transform:none}

:focus-visible{outline:2px solid var(--accent);outline-offset:3px;border-radius:4px}

@media (max-width: 820px){
  .hero-grid,.about-grid{grid-template-columns:1fr;gap:32px}
  section{padding:64px 0}
  .menu-btn{display:flex}
  nav{display:none;position:absolute;left:0;right:0;top:100%;flex-direction:column;align-items:stretch;gap:0;background:var(--bg);border-bottom:1px solid var(--line);padding:8px 20px 16px}
  nav.open{display:flex}
  nav a{padding:12px 0;border-bottom:1px solid var(--line)}
  nav .nav-cta{margin-top:12px;text-align:center;border-bottom:0}
}
@media (prefers-reduced-motion: reduce){
  html{scroll-behavior:auto}
  .reveal{opacity:1;transform:none;transition:none}
  .card{transition:none}
}

/* project detail toggles */
.work details{background:none;border:0;padding:0;margin:2px 0 0}
.work summary{padding:4px 0;color:var(--accent);font-size:.9rem;font-weight:600;cursor:pointer}
.work summary::after{content:" +";float:none;font-size:inherit}
.work details[open] summary::after{content:" \2212";float:none}
.work details ul{margin:8px 0 4px;padding-left:18px;color:var(--muted);font-size:.92rem}
.work details li{margin:0 0 8px}
.work details strong{color:var(--text)}

/* founder timeline */
.about-grid .sub{margin:28px 0 14px}
.timeline{list-style:none;margin:0;padding:0 0 0 18px;border-left:2px solid var(--line)}
.timeline li{position:relative;padding:0 0 16px}
.timeline li::before{content:"";position:absolute;left:-24px;top:7px;width:10px;height:10px;border-radius:50%;background:var(--accent)}
.timeline .when{display:block;color:var(--accent);font-size:.8rem;font-weight:600;letter-spacing:.04em}
.timeline strong{display:block}
.timeline span:not(.when){display:block;color:var(--muted);font-size:.93rem}

/* quote */
.quote{margin:18px 0 0;background:var(--panel);border:1px solid var(--line);border-left:3px solid var(--accent);border-radius:var(--radius);padding:18px 20px}
.quote blockquote{margin:0}
.quote blockquote p{margin:0;color:var(--text);font-size:.97rem}
.quote figcaption{margin-top:10px;color:var(--muted);font-size:.86rem}