/* Layout concept: long-scroll editorial one-pager, alternating paper / raised
   bands, a literal EEG strip-chart as the hero image, icon-led minimal cards
   in place of dense technical copy throughout. */
:root{
  --ink:#0d1420;
  --ink-soft:#4b5468;
  --paper:#f5f7fb;
  --paper-raised:#ffffff;
  --line:rgba(13,20,32,.12);
  --accent:#1f6fd6;
  --accent-ink:#0f4fab;
  --accent-soft:#e6eefc;
  --calm:#149e78;
  --calm-soft:#e3f6ef;
  --warn:#b4790f;
  --warn-soft:#faf0dc;
  --alert:#c13f3f;
  --alert-soft:#fbe8e6;
  --mono-chip:#eef1f6;
  --font-display:'Great Vibes',cursive;
  --font-body:'Pathway Gothic One',sans-serif;
  --font-mono:'IBM Plex Mono',ui-monospace,SFMono-Regular,Menlo,monospace;
  color-scheme: light;
}
@media (prefers-color-scheme: dark){
  :root:not([data-theme="light"]){
    --ink:#eef1f7;
    --ink-soft:#a7b0c4;
    --paper:#0a0e17;
    --paper-raised:#121a28;
    --line:rgba(238,241,247,.14);
    --accent:#6ea2ff;
    --accent-ink:#bcd3ff;
    --accent-soft:rgba(110,162,255,.14);
    --calm:#3fd9a8;
    --calm-soft:rgba(63,217,168,.12);
    --warn:#e3b24d;
    --warn-soft:rgba(227,178,77,.12);
    --alert:#ff8178;
    --alert-soft:rgba(255,129,120,.14);
    --mono-chip:#1b2434;
    color-scheme: dark;
  }
}
:root[data-theme="dark"]{
  --ink:#eef1f7;
  --ink-soft:#a7b0c4;
  --paper:#0a0e17;
  --paper-raised:#121a28;
  --line:rgba(238,241,247,.14);
  --accent:#6ea2ff;
  --accent-ink:#bcd3ff;
  --accent-soft:rgba(110,162,255,.14);
  --calm:#3fd9a8;
  --calm-soft:rgba(63,217,168,.12);
  --warn:#e3b24d;
  --warn-soft:rgba(227,178,77,.12);
  --alert:#ff8178;
  --alert-soft:rgba(255,129,120,.14);
  --mono-chip:#1b2434;
  color-scheme: dark;
}

*{box-sizing:border-box}
html,body{margin:0}
body{
  background:var(--paper);
  color:var(--ink);
  font-family:var(--font-body);
  font-size:16px;
  line-height:1.55;
  -webkit-font-smoothing:antialiased;
  padding-left:max(16px, env(safe-area-inset-left, 0px));
  padding-right:max(16px, env(safe-area-inset-right, 0px));
}
body::before{
  content:"";
  position:fixed;
  inset:0 0 auto;
  height:env(safe-area-inset-top, 0px);
  z-index:20;
  background:var(--paper);
}
h1,h2,h3{font-family:var(--font-display);font-weight:400;letter-spacing:0;text-wrap:balance;margin:0}
p{margin:0}
a{color:var(--accent)}
.mono{font-family:var(--font-mono)}
img,svg{max-width:100%}
@media (prefers-reduced-motion: no-preference){
  html{scroll-behavior:smooth}
}

.wrap{max-width:1120px;margin:0 auto;padding-inline:4px}
.band{padding-block:clamp(56px,9vw,112px)}
.band-raised{background:var(--paper-raised);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.eyebrow{
  font-family:var(--font-mono);
  font-size:12.5px;
  letter-spacing:.09em;
  text-transform:uppercase;
  color:var(--accent-ink);
  display:flex;align-items:center;gap:8px;
}
.eyebrow::before{content:"";width:7px;height:7px;border-radius:50%;background:var(--accent);flex:none}
.section-head{display:flex;flex-direction:column;gap:14px;max-width:680px;margin-bottom:40px}
.section-head h2{font-size:clamp(26px,3.4vw,36px)}
.section-head .lede{color:var(--ink-soft);font-size:17px;max-width:62ch}
.section-head.has-illustration{
  max-width:none;
  display:grid;
  grid-template-columns:minmax(0,1.05fr) minmax(250px,.95fr);
  grid-template-areas:"eyebrow image" "title image" "lede image";
  align-items:center;
  column-gap:clamp(24px,5vw,56px);
}
.section-head.has-illustration>.eyebrow{grid-area:eyebrow}
.section-head.has-illustration>h2{grid-area:title}
.section-head.has-illustration>.lede{grid-area:lede}
.section-illustration{grid-area:image;width:100%;height:auto;display:block;border-radius:14px}
@media (max-width:760px){
  .section-head.has-illustration{
    grid-template-columns:minmax(0,1fr);
    grid-template-areas:"eyebrow" "title" "lede" "image";
    row-gap:14px;
  }
  .section-illustration{max-width:540px;margin-top:4px}
}

/* ---------- nav ---------- */
header.site{
  position:sticky;
  top:env(safe-area-inset-top, 0px);
  z-index:30;
  background:color-mix(in srgb, var(--paper) 88%, transparent);
  backdrop-filter:blur(10px);
  border-bottom:1px solid var(--line);
}
.nav{
  max-width:1120px;margin:0 auto;
  display:flex;align-items:center;justify-content:space-between;
  padding-block:14px;gap:18px;
}
.brand{display:flex;align-items:center;gap:9px;font-family:var(--font-body);font-weight:700;font-size:18px;letter-spacing:-.01em;text-decoration:none;color:var(--ink)}
.brand img{width:32px;height:32px;display:block}
nav.links{display:flex;align-items:center;gap:22px;list-style:none;margin:0;padding:0}
nav.links a{color:var(--ink-soft);text-decoration:none;font-size:14.5px;font-weight:500}
nav.links a:hover{color:var(--ink)}
.cta{
  font-family:var(--font-body);font-weight:600;font-size:14.5px;
  background:var(--accent);color:#fff;border:none;border-radius:8px;
  padding:10px 16px;cursor:pointer;text-decoration:none;white-space:nowrap;
  transition:transform .15s ease, box-shadow .15s ease;
  display:inline-flex;align-items:center;gap:6px;
}
.cta:hover{transform:translateY(-1px);box-shadow:0 6px 16px -6px var(--accent)}
.cta.ghost{background:transparent;color:var(--ink);border:1px solid var(--line)}
.cta.ghost:hover{border-color:var(--accent);color:var(--accent)}
#navToggle{display:none;background:none;border:1px solid var(--line);border-radius:8px;width:38px;height:38px;color:var(--ink);align-items:center;justify-content:center}
#mobileMenu{display:none}
@media (max-width:760px){
  nav.links{display:none}
  header.site .nav .cta.desktop-only{display:none}
  #navToggle{display:flex}
  #mobileMenu{
    border-top:1px solid var(--line);
    padding:14px 0 18px;
    display:flex;flex-direction:column;gap:12px;
  }
  #mobileMenu a{color:var(--ink);text-decoration:none;font-size:15px;font-weight:500}
  #mobileMenu[hidden]{display:none}
}

/* ---------- hero ---------- */
.hero{padding-top:clamp(48px,8vw,88px);padding-bottom:clamp(40px,6vw,64px)}
.hero-grid{display:grid;grid-template-columns:minmax(0,1.05fr) minmax(0,.95fr);gap:48px;align-items:center}
.hero-grid>*{min-width:0}
@media (max-width:860px){.hero-grid{grid-template-columns:minmax(0,1fr)}}
.hero h1{font-size:clamp(32px,4.6vw,52px);line-height:1.08;margin-block:16px 18px}
.hero .lede{font-size:18px;color:var(--ink-soft);max-width:54ch}
.hero .ctas{display:flex;gap:12px;flex-wrap:wrap;margin-top:26px}
.hero .disclaimer{margin-top:16px;font-size:13px;color:var(--ink-soft)}
.hero .disclaimer strong{color:var(--ink)}

.eeg-card{
  background:var(--paper-raised);
  border:1px solid var(--line);
  border-radius:16px;
  padding:18px 18px 14px;
  box-shadow:0 20px 50px -30px rgba(13,20,32,.35);
}
.eeg-card .top{display:flex;justify-content:space-between;align-items:baseline;margin-bottom:10px}
.eeg-card .top .label{font-family:var(--font-mono);font-size:12px;color:var(--ink-soft)}
.eeg-card .top .live{display:flex;align-items:center;gap:6px;font-family:var(--font-mono);font-size:12px;color:var(--calm)}
.eeg-card .top .live .lp{width:6px;height:6px;border-radius:50%;background:var(--calm)}
.eeg-wrap{display:flex;gap:10px}
.band-labels{display:flex;flex-direction:column;justify-content:space-around;font-family:var(--font-mono);font-size:12px;color:var(--ink-soft);padding-block:4px}
canvas#eeg{width:100%;height:170px;display:block;border-radius:10px;background:var(--paper)}
.state-ticker{
  margin-top:12px;display:flex;align-items:center;justify-content:space-between;
  border-top:1px dashed var(--line);padding-top:12px;font-family:var(--font-mono);font-size:12.5px;color:var(--ink-soft);
}
.state-pill{
  display:inline-flex;align-items:center;gap:7px;font-family:var(--font-mono);
  font-size:12.5px;font-weight:500;padding:5px 10px;border-radius:999px;
  background:var(--accent-soft);color:var(--accent-ink);
}
.state-pill .sp{width:6px;height:6px;border-radius:50%;background:currentColor}

.facts{
  display:flex;flex-wrap:wrap;gap:0;
  border-top:1px solid var(--line);border-bottom:1px solid var(--line);
  margin-top:clamp(40px,6vw,64px);
}
.fact{flex:1 1 220px;padding:18px 20px;border-right:1px solid var(--line)}
.fact:last-child{border-right:none}
.fact .n{font-family:var(--font-mono);font-weight:500;font-size:22px;color:var(--accent-ink);font-variant-numeric:tabular-nums}
.fact .d{font-size:13.5px;color:var(--ink-soft);margin-top:4px}

/* ---------- pipeline ---------- */
.pipeline{display:flex;flex-direction:column;gap:0}
.step{
  display:grid;grid-template-columns:56px 1fr;gap:18px;align-items:start;
  padding-block:22px;border-top:1px solid var(--line);position:relative;
}
.step:first-child{border-top:none}
.icon-circle{
  width:56px;height:56px;border-radius:16px;flex:none;
  background:var(--tile-bg, var(--accent-soft));color:var(--tile-fg, var(--accent-ink));
  display:flex;align-items:center;justify-content:center;
}
.icon-circle svg{width:28px;height:28px}
.icon-circle.sm{width:38px;height:38px;border-radius:11px}
.icon-circle.sm svg{width:19px;height:19px}
.step .body h3{font-size:18px;margin-bottom:6px}
.step .body p{color:var(--ink-soft);max-width:60ch}

/* ---------- profile grid ---------- */
.cat-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(min(100%,230px),1fr));gap:16px}
.cat-card{
  border:1px solid var(--line);border-radius:14px;padding:20px;background:var(--paper-raised);
  display:flex;flex-direction:column;gap:12px;min-width:0;
}
.cat-card h3{font-size:16.5px}
.cat-card .profiles{font-size:13.5px;color:var(--ink-soft)}
.cat-card .terms{
  display:flex;flex-wrap:wrap;gap:6px;margin-top:auto;padding-top:10px;border-top:1px solid var(--line);
}
.term{font-family:var(--font-mono);font-size:11.5px;background:var(--mono-chip);color:var(--ink-soft);padding:3px 7px;border-radius:5px}

/* ---------- states grid ---------- */
.states-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(min(100%,250px),1fr));gap:14px}
.state-card{
  border-left:3px solid var(--sc, var(--accent));
  background:var(--paper-raised);border:1px solid var(--line);border-left-width:3px;border-radius:10px;
  padding:16px 18px;min-width:0;display:flex;gap:12px;align-items:flex-start;
}
.state-card .name{font-family:var(--font-display);font-weight:600;font-size:15.5px}
.state-card .desc{font-size:13.5px;color:var(--ink-soft);margin-top:4px}
.retired-note{
  margin-top:22px;padding:16px 18px;border:1px dashed var(--line);border-radius:10px;
  font-size:13.5px;color:var(--ink-soft);background:var(--paper-raised);
}

/* ---------- reports flow ---------- */
.flow-row{display:flex;align-items:center;justify-content:center;gap:18px;flex-wrap:wrap;padding-block:12px}
.flow-step{display:flex;flex-direction:column;align-items:center;gap:10px;text-align:center;width:150px}
.flow-step h3{font-size:14.5px}
.flow-arrow{width:22px;height:22px;color:var(--line);flex:none}
.report-tags{display:flex;flex-wrap:wrap;justify-content:center;gap:8px;margin-top:28px}
.report-tags .term{font-size:12.5px;padding:6px 12px}

/* ---------- accessibility ---------- */
.acc-grid{display:grid;grid-template-columns:1.1fr .9fr;gap:40px}
@media (max-width:860px){.acc-grid{grid-template-columns:1fr}}
.mapping{display:flex;flex-direction:column;gap:0;border-top:1px solid var(--line)}
.map-row{display:grid;grid-template-columns:38px minmax(0,1fr) minmax(0,1.3fr);gap:14px;padding-block:14px;border-bottom:1px solid var(--line);align-items:center}
.map-row>*{min-width:0}
.map-row .gesture{font-weight:600;font-size:14.5px}
.map-row .result{color:var(--ink-soft);font-size:14.5px}
.safety-note{
  margin-top:16px;padding:14px 16px;border-radius:10px;background:var(--alert-soft);color:var(--alert);
  font-size:13.5px;display:flex;gap:10px;align-items:flex-start;
}
.panel-demo{border:1px solid var(--line);border-radius:14px;padding:18px;background:var(--paper-raised)}
.panel-demo .ph{font-family:var(--font-mono);font-size:12px;color:var(--ink-soft);margin-bottom:12px}
.pictos{display:grid;grid-template-columns:repeat(3,1fr);gap:8px}
.picto{
  border:1px solid var(--line);border-radius:9px;padding:12px 6px;text-align:center;
  font-size:12px;font-weight:600;color:var(--ink-soft);background:var(--paper);
  transition:border-color .15s, color .15s;
}
.picto:hover{border-color:var(--accent);color:var(--accent)}

/* ---------- limits ---------- */
.limits-list{display:flex;flex-direction:column;gap:0;border-top:1px solid var(--line)}
.limit-row{display:flex;gap:12px;padding-block:16px;border-bottom:1px solid var(--line)}
.limit-row .x{flex:none;color:var(--alert);font-family:var(--font-mono);font-weight:600;margin-top:1px}
.limit-row p{color:var(--ink-soft);max-width:62ch}
.limit-row strong{color:var(--ink)}
.legal-box{
  margin-top:28px;padding:18px 20px;border-radius:12px;background:var(--calm-soft);color:var(--calm);
  font-size:14px;display:flex;gap:10px;
}
.legal-box p{color:inherit}

/* ---------- use cases ---------- */
.case-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(min(100%,260px),1fr));gap:16px}
.case-card{border:1px solid var(--line);border-radius:14px;padding:20px;background:var(--paper-raised);min-width:0}
.case-card .role{font-family:var(--font-mono);font-size:12px;color:var(--accent-ink);text-transform:uppercase;letter-spacing:.06em;display:block;margin-top:12px}
.case-card h3{font-size:16.5px;margin-block:4px 8px}
.case-card p{font-size:14px;color:var(--ink-soft)}

/* ---------- contact ---------- */
.contact-card{
  display:flex;flex-wrap:wrap;gap:28px;justify-content:space-between;align-items:center;
  border:1px solid var(--line);border-radius:16px;padding:clamp(24px,4vw,40px);background:var(--paper-raised);
}
.contact-card .left{max-width:480px}
.contact-card h2{font-size:clamp(24px,3vw,30px)}
.contact-card p{color:var(--ink-soft);margin-top:10px}
.email-row{display:flex;align-items:center;gap:10px;flex-wrap:wrap}
.email-box{
  font-family:var(--font-mono);font-size:16px;background:var(--mono-chip);
  padding:11px 14px;border-radius:9px;user-select:all;color:var(--ink);
  min-width:0;max-width:100%;overflow-wrap:anywhere;
}
.copy-btn{
  border:1px solid var(--line);background:var(--paper);color:var(--ink);border-radius:9px;
  padding:11px 14px;font-family:var(--font-body);font-size:13.5px;font-weight:600;cursor:pointer;
}
.copy-btn:hover{border-color:var(--accent);color:var(--accent)}
.copy-btn[data-copied="true"]{color:var(--calm);border-color:var(--calm)}

footer{padding-block:36px;border-top:1px solid var(--line)}
.foot-grid{display:flex;justify-content:space-between;align-items:flex-start;gap:20px;flex-wrap:wrap}
.foot-grid .brand{margin-bottom:6px}
footer .tag{font-size:13.5px;color:var(--ink-soft);max-width:34ch}
footer .legal{font-size:12.5px;color:var(--ink-soft);text-align:right;max-width:38ch}
@media (max-width:640px){footer .legal{text-align:left}}

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