@font-face{font-family:'Inter';font-weight:100 900;font-display:swap;src:url('../fonts/inter.woff2') format('woff2')}
@font-face{font-family:'Space Grotesk';font-weight:300 700;font-display:swap;src:url('../fonts/space-grotesk.woff2') format('woff2')}

/* ---- reset ---- */
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{-webkit-text-size-adjust:100%}
img,picture,svg{display:block;max-width:100%}
a{color:inherit;text-decoration:none}
button{font:inherit;color:inherit;background:none;border:0;cursor:pointer}

/* ---- tokens: dark is default ---- */
:root,[data-theme="dark"]{
  --bg:#1c1c1e; --surface:#252528; --border:#333; --text:#fff;
  --muted:rgba(255,255,255,.70); --accent:#cddc39; --accent-fill:#cddc39;
  --accent-on-fill:#1c1c1e; --brand-teal:#14b8a6;
  --band:linear-gradient(120deg,#0f766e,#0b7a6e);
  --contact-bg:var(--bg);
  --diagram-emph:#7fe9d8; --diagram-emph-bg:#2b3a37;
}
[data-theme="light"]{
  --bg:#f7f7f5; --surface:#fff; --border:#e5e5e0; --text:#1c1c1e;
  --muted:rgba(28,28,30,.65); --accent:#4a7c22; --accent-fill:#1c1c1e;
  --accent-on-fill:#fff; --brand-teal:#14b8a6;
  --band:linear-gradient(120deg,#0f766e,#0b7a6e);
  --contact-bg:#101012;
  --diagram-emph:#0f766e; --diagram-emph-bg:#d9f1ec;
}

/* ---- base ---- */
body{background:var(--bg);color:var(--text);
  font-family:'Inter',system-ui,-apple-system,sans-serif;line-height:1.6;
  transition:background .25s ease,color .25s ease}
h1,h2,h3{font-family:'Space Grotesk','Inter',sans-serif;line-height:1.1;letter-spacing:-.02em;font-weight:700}
.muted{color:var(--muted)}

/* ---- layout + nav + buttons + footer ---- */
.container{width:min(1120px,92vw);margin-inline:auto}
.site-nav{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(--border)}
.site-nav .row{display:flex;align-items:center;justify-content:space-between;gap:20px;padding:14px 0}
.brand{font-family:'Space Grotesk',sans-serif;font-weight:700;font-size:1.15rem;letter-spacing:.01em}
.nav-links{display:flex;gap:22px;align-items:center;font-size:.9rem}
.nav-links a:hover{color:var(--accent)}
.nav-tools{display:flex;gap:12px;align-items:center}
.btn{display:inline-block;background:var(--accent-fill);color:var(--accent-on-fill);
  font-weight:700;padding:10px 20px;border-radius:30px;font-size:.9rem;transition:transform .15s}
.btn:hover{transform:translateY(-1px)}
#theme-toggle,#lang-toggle{font-size:.85rem;color:var(--muted);padding:6px 8px;border-radius:8px}
.nav-toggle{display:none;font-size:1.5rem;line-height:1;color:var(--text);padding:2px 8px;border-radius:8px}
#theme-toggle:focus-visible,#lang-toggle:focus-visible,#nav-toggle:focus-visible,.nav-links a:focus-visible,.btn:focus-visible,.btn-ghost:focus-visible{outline:2px solid var(--brand-teal);outline-offset:3px}
.site-footer{border-top:1px solid var(--border);padding:40px 0;color:var(--muted);font-size:.9rem}
@media(max-width:720px){
  .nav-toggle{display:inline-flex}
  .nav-tools .btn{display:none}
  .nav-links{position:absolute;top:100%;left:0;right:0;flex-direction:column;align-items:stretch;gap:0;background:var(--bg);border-bottom:1px solid var(--border);padding:6px 0;display:none}
  .site-nav.open .nav-links{display:flex}
  .nav-links a{padding:12px 4vw}
  .nav-links a:hover{background:var(--surface);color:var(--text)}
}

/* ---- blocks + layers ---- */
.block{padding:60px 0}
.block h2{font-size:clamp(1.6rem,3.5vw,2.4rem);margin-bottom:18px}
.layers{display:grid;grid-template-columns:repeat(2,1fr);gap:16px;margin-top:26px}
.layer{background:var(--surface);border:1px solid var(--border);border-radius:14px;padding:22px}
.layer h3{font-size:1.15rem;margin-bottom:8px}
.layer .why{margin-top:10px;color:var(--accent);font-size:.92rem;font-weight:500}
@media(max-width:720px){.layers{grid-template-columns:1fr}}

/* ---- band + stats ---- */
.band{background:var(--band);color:#fff;padding:56px 0}
.band .kicker.on-band{color:#eafff9}
.on-band{color:#fff}
.stats{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;margin-top:28px}
.stats .num{font-family:'Space Grotesk',sans-serif;font-weight:700;font-size:2rem;display:block}
.stats small{opacity:.9;font-size:.85rem}
@media(max-width:720px){.stats{grid-template-columns:repeat(2,1fr)}}

/* ---- cross-industry cards + principles ---- */
.cross{display:grid;grid-template-columns:repeat(2,1fr);gap:14px;margin-top:24px}
.x-card{border-left:3px solid var(--brand-teal);padding:6px 0 6px 16px}
.x-card h3{font-size:1.05rem;margin-bottom:6px}
.principles{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;margin-top:24px}
.pr-n{font-family:'Space Grotesk',sans-serif;color:var(--accent);font-weight:700}
.pr h3{font-size:1.1rem;margin:8px 0 6px}
@media(max-width:720px){.cross,.principles{grid-template-columns:1fr}}

/* ---- hero ---- */
.hero{padding:80px 0 70px}
.hero-grid{display:grid;grid-template-columns:1.1fr .9fr;gap:30px;align-items:center}
.kicker{font-size:.8rem;letter-spacing:.18em;text-transform:uppercase;color:var(--accent);margin-bottom:16px}
h2.kicker{font-family:'Inter',system-ui,sans-serif;font-weight:400;font-size:.8rem;line-height:1.6;margin-bottom:16px}
.hero h1{font-size:clamp(2.2rem,5vw,3.6rem)}
.lead{font-size:1.05rem;margin:18px 0 26px;max-width:46ch}
.hero-copy{min-width:0}
.hero-mesh{width:100%;min-width:0;height:320px}
@media(max-width:720px){.hero-grid{grid-template-columns:1fr}.hero-mesh{height:220px}}

/* ---- contact band + footer ---- */
.band-dark{background:var(--contact-bg)}
.contact-inner{text-align:center}
.contact-sub{opacity:.85;margin:10px 0 22px}
.btn-ghost{display:inline-block;margin-left:12px;padding:10px 20px;border:1px solid rgba(255,255,255,.4);border-radius:30px;color:#fff;font-weight:500;transition:opacity .15s,border-color .15s}
.btn-ghost:hover{opacity:.8;border-color:rgba(255,255,255,.7)}
.site-footer .container{display:flex;justify-content:space-between;flex-wrap:wrap;gap:10px}
.band-dark + .site-footer{margin-top:0;border-top-color:rgba(255,255,255,.08)}

/* ---- about page ---- */
.about-grid{display:grid;grid-template-columns:360px 1fr;gap:34px;align-items:start;margin-top:20px}
.founder{border-radius:16px;width:100%;height:auto;aspect-ratio:1;object-fit:cover;object-position:center;
  background:radial-gradient(circle at 50% 30%, color-mix(in srgb,var(--brand-teal) 9%,var(--surface)) 0%, var(--bg) 72%);
  box-shadow:0 14px 34px rgba(0,0,0,.12)}
.role{font-size:1.05rem;margin:4px 0 18px}
.story-m{color:var(--accent);font-weight:600}
.link-accent{color:var(--accent);font-weight:600;display:inline-block;margin-top:14px;border-bottom:1px solid var(--accent)}
.sub-h{font-size:1.3rem;margin:40px 0 14px}
.chips{list-style:none;display:flex;flex-wrap:wrap;gap:10px}
.chips li{background:var(--surface);border:1px solid var(--border);border-radius:30px;padding:8px 16px;font-size:.85rem}
.stories{padding-left:20px;display:grid;gap:12px;color:var(--muted);max-width:70ch}
@media(max-width:720px){.about-grid{grid-template-columns:1fr}.founder{max-width:240px}}

/* ---- a11y + performance ---- */
.skip{position:absolute;left:-9999px}
.skip:focus{left:12px;top:12px;position:fixed;background:var(--accent-fill);color:var(--accent-on-fill);padding:8px 14px;border-radius:8px;z-index:100}
@media(prefers-reduced-motion:reduce){*{animation:none!important;transition:none!important;scroll-behavior:auto!important}}

/* ---- scroll reveal (JS adds .reveal-on only when motion is allowed; no JS or reduced motion = fully visible) ---- */
.reveal-on .reveal{opacity:0;transform:translateY(16px);transition:opacity .5s ease,transform .5s ease}
.reveal-on .reveal.in{opacity:1;transform:none}

/* ---- build: icon badge + detail modal ---- */
.layer{position:relative;text-align:left;width:100%;cursor:pointer}
.layer:focus-visible{outline:2px solid var(--brand-teal);outline-offset:3px}
.layer-ico{display:flex;width:34px;height:34px;border-radius:9px;background:rgba(20,184,166,.14);color:var(--brand-teal);align-items:center;justify-content:center;margin-bottom:12px}
.layer-more{position:absolute;top:16px;right:16px;font-size:.7rem;color:var(--diagram-emph);border:1px solid rgba(20,184,166,.4);border-radius:20px;padding:2px 8px}
.modal-overlay{position:fixed;inset:0;z-index:100;display:flex;align-items:center;justify-content:center;padding:20px;background:rgba(0,0,0,.6)}
.modal-overlay[hidden]{display:none}
.modal-card{background:var(--surface);border:1px solid var(--border);border-radius:16px;width:100%;max-width:min(980px,92vw);max-height:92vh;overflow:auto;box-shadow:0 30px 80px rgba(0,0,0,.5)}
.modal-bar{display:flex;align-items:center;gap:12px;padding:18px clamp(20px,3vw,34px);border-bottom:1px solid var(--border)}
.modal-bar .modal-ico{width:38px;height:38px;border-radius:10px;background:rgba(20,184,166,.16);color:var(--brand-teal);display:flex;align-items:center;justify-content:center;flex:0 0 auto}
.modal-bar h3{font-size:clamp(1.2rem,2.4vw,1.6rem);margin:0}
.modal-x{margin-left:auto;color:var(--muted);font-size:1.1rem;padding:4px 8px;border-radius:8px}
.modal-x:hover{color:var(--text)}.modal-x:focus-visible{outline:2px solid var(--brand-teal);outline-offset:2px}
.modal-body{padding:clamp(20px,3vw,34px)}
.modal-lbl{font-size:.68rem;letter-spacing:.16em;text-transform:uppercase;color:var(--accent);margin-bottom:6px}
.modal-what{color:var(--muted);font-size:clamp(.95rem,1.4vw,1.1rem);line-height:1.6;margin-bottom:22px;max-width:74ch}
.modal-diagram{background:var(--bg);border:1px solid var(--border);border-radius:12px;padding:clamp(14px,2.5vw,28px);margin-bottom:22px}
.modal-diagram svg{width:100%;height:auto;display:block}
.modal-why{margin-bottom:0;font-size:clamp(.92rem,1.3vw,1.05rem);max-width:74ch}
@media (prefers-reduced-motion:no-preference){.modal-card{animation:modalIn .2s ease}}
@keyframes modalIn{from{opacity:0;transform:translateY(10px)}to{opacity:1;transform:none}}

/* ---- how we work: horizontal rail + panel ---- */
.hww-rail{position:relative;display:flex;justify-content:space-between;align-items:flex-start;margin:22px 0 26px}
.hww-rail .rail-line{position:absolute;top:11px;left:16.66%;right:16.66%;height:2px;background:var(--border);z-index:0}
.hww-rail .rail-arrow{position:absolute;top:7px;z-index:0;width:0;height:0;border-left:7px solid var(--brand-teal);border-top:5px solid transparent;border-bottom:5px solid transparent;transform:translateX(-50%)}
.hww-node{position:relative;z-index:1;flex:1 1 0;min-width:0;display:flex;flex-direction:column;align-items:center;text-align:center;gap:6px;background:none;cursor:pointer;padding:0 6px}
.hww-node .d{width:24px;height:24px;border-radius:50%;background:var(--surface);border:2px solid var(--border);transition:box-shadow .2s,background .2s}
.hww-node .nn{font-weight:700;color:var(--muted);font-size:.78rem}
.hww-node .nt{font-size:.9rem;line-height:1.2;color:var(--muted)}
.hww-node[aria-pressed="true"] .d{background:var(--accent);border-color:var(--accent);box-shadow:0 0 0 6px color-mix(in srgb,var(--accent) 18%,transparent)}
.hww-node[aria-pressed="true"] .nn{color:var(--accent)}
.hww-node[aria-pressed="true"] .nt{color:var(--text)}
.hww-node:focus-visible{outline:2px solid var(--brand-teal);outline-offset:3px;border-radius:10px}
.hww-panel{display:flex;gap:26px;align-items:center;background:var(--surface);border:1px solid var(--border);border-radius:16px;padding:clamp(18px,3vw,30px)}
.hww-panel .hww-diagram{flex:1 1 56%;min-width:0;max-width:480px}
.hww-panel .hww-diagram svg{width:100%;height:auto;display:block}
.hww-panel .hww-text{flex:1 1 40%;min-width:200px}
.hww-panel .lbl{font-size:.66rem;letter-spacing:.16em;text-transform:uppercase;color:var(--accent);margin-bottom:10px}
.hww-panel .cap{font-size:clamp(.95rem,1.4vw,1.1rem);color:var(--muted);line-height:1.6}
@media(max-width:640px){
  .hww-panel{flex-direction:column;align-items:stretch;gap:18px}
  .hww-panel .hww-diagram{max-width:none}
  .hww-node .nt{font-size:.8rem}
}

/* ---- cross-industry carousel ---- */
.carousel-head{display:flex;justify-content:flex-end;margin-bottom:14px}
.carousel-arrows{display:flex;gap:8px}
.carousel-arrows button{width:38px;height:38px;border-radius:50%;border:1px solid var(--border);background:var(--surface);color:var(--text);font-size:1rem;display:flex;align-items:center;justify-content:center}
.carousel-arrows button:hover{border-color:var(--brand-teal);color:var(--diagram-emph)}
.carousel-arrows button:disabled{opacity:.35;cursor:default}
.carousel-arrows button:focus-visible{outline:2px solid var(--brand-teal);outline-offset:2px}
.carousel-viewport{overflow-x:auto;scrollbar-width:none;-webkit-mask-image:linear-gradient(90deg,#000 92%,transparent)}
.carousel-viewport::-webkit-scrollbar{display:none}
.carousel-viewport:focus-visible{outline:2px solid var(--brand-teal);outline-offset:3px}
.carousel-track{display:flex;gap:16px}
.car-slide{flex:0 0 300px;background:var(--surface);border:1px solid var(--border);border-left:3px solid var(--brand-teal);border-radius:14px;padding:20px}
.car-slide.is-new{border-left-color:var(--accent)}
.car-slide .car-ico{width:34px;height:34px;border-radius:9px;background:rgba(20,184,166,.14);color:var(--brand-teal);display:flex;align-items:center;justify-content:center;margin-bottom:12px}
.car-slide.is-new .car-ico{background:color-mix(in srgb,var(--accent) 14%,transparent);color:var(--accent)}
.car-slide .badge{display:inline-block;font-size:.62rem;letter-spacing:.12em;text-transform:uppercase;color:var(--accent);border:1px solid color-mix(in srgb,var(--accent) 40%,transparent);border-radius:20px;padding:2px 8px;margin-bottom:10px}
.car-slide h3{font-size:1.05rem;margin:0 0 8px}
.car-slide p{color:var(--muted);font-size:.86rem;margin:0;line-height:1.5}
.carousel-dots{display:flex;gap:7px;justify-content:center;margin-top:18px}
.carousel-dots button{width:7px;height:7px;border-radius:50%;background:var(--border);padding:0}
.carousel-dots button[aria-current="true"]{background:var(--accent);width:20px;border-radius:4px}
.carousel-dots button:focus-visible{outline:2px solid var(--brand-teal);outline-offset:3px}
@media(max-width:720px){.car-slide{flex-basis:82%}}
@media(prefers-reduced-motion:no-preference){.carousel-viewport{scroll-behavior:smooth}}