:root{
    --bg:#0A0E16;
    --surface:#121826;
    --surface-2:#171F30;
    --line:#26314A;
    --accent:#2FE0C9;
    --accent-dim:#1B8F80;
    --amber:#E8A855;
    --red:#E86A6A;
    --text:#E9EFF4;
    --muted:#8CA0B3;
    --faint:#5A6B80;
  }
  *{box-sizing:border-box;}
  html{scroll-behavior:smooth;}
  body{
    margin:0;
    background:var(--bg);
    color:var(--text);
    font-family:'IBM Plex Sans',sans-serif;
    line-height:1.55;
    -webkit-font-smoothing:antialiased;
  }
  ::selection{background:var(--accent);color:#04231F;}
  a{color:inherit;}
  img,video{max-width:100%;display:block;}

  .display{
    font-family:'Big Shoulders Display',sans-serif;
    text-transform:uppercase;
    letter-spacing:0.01em;
    font-weight:900;
    line-height:0.92;
  }
  .mono{font-family:'IBM Plex Mono',monospace;}
  .tag{
    font-family:'IBM Plex Mono',monospace;
    font-size:0.72rem;
    letter-spacing:0.14em;
    color:var(--muted);
    display:flex;
    align-items:center;
    gap:8px;
  }
  .tag .dot{width:6px;height:6px;border-radius:50%;background:var(--accent);flex:none;}

  .wrap{max-width:1120px;margin:0 auto;padding:0 28px;}
  section{padding:96px 0;border-top:1px solid var(--line);}
  section:first-of-type{border-top:none;}

  /* NAV */
  header.nav{
    position:sticky;top:0;z-index:50;
    background:rgba(10,14,22,0.85);
    backdrop-filter:blur(10px);
    border-bottom:1px solid var(--line);
  }
  .nav-inner{
    max-width:1120px;margin:0 auto;padding:16px 28px;
    display:flex;align-items:center;justify-content:space-between;
  }
  .brand{display:flex;align-items:center;gap:10px;font-weight:700;letter-spacing:0.02em;}
  .brand svg{width:22px;height:22px;}
  .brand .bt{font-family:'Big Shoulders Display';font-weight:900;font-size:1.25rem;letter-spacing:0.03em;}
  .brand .bt .mid{color:var(--accent);}
  .navlinks{display:flex;gap:28px;font-size:0.9rem;color:var(--muted);}
  .navlinks a:hover{color:var(--text);}
  .navcta{
    background:var(--accent);color:#04231F;font-weight:600;font-size:0.85rem;
    padding:9px 16px;border-radius:6px;text-decoration:none;white-space:nowrap;
  }
  @media(max-width:720px){.navlinks{display:none;}}

  /* HERO */
  .hero{padding:64px 0 80px;border-top:none;}
  .hero-grid{display:grid;grid-template-columns:1.15fr 0.85fr;gap:56px;align-items:center;}
  @media(max-width:860px){.hero-grid{grid-template-columns:1fr;}}
  .hero h1{font-size:clamp(2.1rem,8vw,4.4rem);margin:18px 0 20px;overflow-wrap:break-word;}
  .hero h1 .accent{color:var(--accent);}
  .hero p.lede{color:var(--muted);font-size:1.08rem;max-width:46ch;margin:0 0 32px;}
  .cta-row{display:flex;gap:14px;flex-wrap:wrap;}
  .btn{
    display:inline-flex;align-items:center;gap:8px;
    padding:13px 22px;border-radius:7px;font-weight:600;font-size:0.95rem;
    text-decoration:none;border:1px solid transparent;
  }
  .btn-primary{background:var(--accent);color:#04231F;}
  .btn-primary:hover{background:#4CEBD8;}
  .btn-ghost{border-color:var(--line);color:var(--text);}
  .btn-ghost:hover{border-color:var(--accent);color:var(--accent);}

  /* transcript card */
  .transcript{
    background:var(--surface);border:1px solid var(--line);border-radius:12px;
    padding:22px 22px 18px;font-family:'IBM Plex Mono',monospace;font-size:0.86rem;
    box-shadow:0 30px 60px -30px rgba(0,0,0,0.6);
  }
  .transcript .head{display:flex;justify-content:space-between;gap:10px;color:var(--faint);font-size:0.72rem;letter-spacing:0.08em;margin-bottom:14px;white-space:nowrap;}
  .transcript .line{margin:0 0 10px;color:var(--muted);}
  .transcript .line b{color:var(--text);font-weight:500;}
  .transcript .q{color:var(--text);}
  .cursor{display:inline-block;width:7px;height:1em;background:var(--accent);vertical-align:-2px;animation:blink 1s steps(1) infinite;}
  @keyframes blink{50%{opacity:0;}}
  .stressbar{height:6px;background:var(--surface-2);border-radius:99px;overflow:hidden;margin:6px 0 4px;}
  .stressbar span{display:block;height:100%;background:linear-gradient(90deg,var(--accent),var(--amber));width:0%;transition:width 1.6s ease;}
  .stress-label{display:flex;justify-content:space-between;font-size:0.72rem;color:var(--faint);}

  /* ethical banner */
  .banner{
    background:rgba(232,168,85,0.09);
    border:1px solid rgba(232,168,85,0.35);
    color:#F0C182;
    border-radius:9px;
    padding:14px 18px;
    font-size:0.86rem;
    display:flex;gap:10px;align-items:flex-start;
    max-width:1120px;margin:0 auto;
  }
  .banner svg{flex:none;margin-top:2px;width:16px;height:16px;}
  .banner-wrap{padding:0 28px;margin-top:-30px;position:relative;z-index:2;}

  h2.display{font-size:clamp(1.9rem,3.6vw,2.7rem);margin:0 0 14px;}
  .sec-head{max-width:640px;margin-bottom:52px;}
  .sec-head p{color:var(--muted);font-size:1.02rem;margin:0;}

  /* method */
  .method-list{display:grid;grid-template-columns:repeat(3,1fr);gap:1px;background:var(--line);border:1px solid var(--line);border-radius:12px;overflow:hidden;}
  @media(max-width:760px){.method-list{grid-template-columns:1fr;}}
  .method-item{background:var(--surface);padding:32px 26px;}
  .method-item .num{font-family:'IBM Plex Mono';color:var(--accent);font-size:0.8rem;}
  .method-item h3{font-family:'Big Shoulders Display';text-transform:uppercase;font-size:1.5rem;margin:10px 0 10px;font-weight:700;}
  .method-item p{color:var(--muted);font-size:0.94rem;margin:0;}

  /* evidence board (screenshots) */
  .board{display:grid;grid-template-columns:repeat(4,1fr);gap:18px;}
  @media(max-width:900px){.board{grid-template-columns:repeat(2,1fr);}}
  .exhibit{background:var(--surface);border:1px solid var(--line);border-radius:12px;overflow:hidden;}
  .exhibit img{width:100%;display:block;border-bottom:1px solid var(--line);}
  .exhibit .cap{padding:12px 14px;}
  .exhibit .cap .k{font-family:'IBM Plex Mono';font-size:0.66rem;letter-spacing:0.1em;color:var(--faint);}
  .exhibit .cap .v{font-size:0.88rem;margin-top:3px;}

  /* video reel */
  .reel{display:grid;grid-template-columns:repeat(4,1fr);gap:18px;}
  @media(max-width:900px){.reel{grid-template-columns:repeat(2,1fr);}}
  @media(max-width:560px){.reel{grid-template-columns:1fr;}}
  .clip{background:var(--surface);border:1px solid var(--line);border-radius:12px;overflow:hidden;}
  .clip video{width:100%;aspect-ratio:16/9;background:#000;cursor:pointer;}
  .clip .meta{padding:14px 16px 16px;}
  .clip .meta .k{font-family:'IBM Plex Mono';font-size:0.64rem;letter-spacing:0.1em;color:var(--faint);display:block;margin-bottom:6px;}
  .clip .meta h4{margin:0 0 6px;font-size:1.02rem;font-weight:600;}
  .clip .meta p{margin:0;color:var(--muted);font-size:0.86rem;}

  /* premium / verdict */
  .verdict{
    background:linear-gradient(155deg,var(--surface) 0%, var(--surface-2) 100%);
    border:1px solid var(--line);border-radius:16px;
    padding:56px;display:grid;grid-template-columns:1.3fr 1fr;gap:40px;align-items:center;
  }
  @media(max-width:820px){.verdict{grid-template-columns:1fr;padding:36px 24px;}}
  .verdict h2{margin:0 0 14px;}
  .verdict p{color:var(--muted);margin:0 0 26px;max-width:48ch;}
  .stat-row{display:flex;gap:34px;margin-top:8px;flex-wrap:wrap;}
  .stat{font-family:'IBM Plex Mono';}
  .stat .n{font-size:1.8rem;color:var(--accent);font-weight:600;}
  .stat .l{font-size:0.68rem;color:var(--faint);letter-spacing:0.1em;}
  .store-row{display:flex;gap:12px;flex-wrap:wrap;}
  .store-btn{
    display:flex;align-items:center;gap:10px;background:#0D1420;border:1px solid var(--line);
    padding:11px 18px;border-radius:8px;text-decoration:none;color:var(--text);font-size:0.85rem;
  }
  .store-btn:hover{border-color:var(--accent);}
  .store-btn .lbl{line-height:1.15;}
  .store-btn .lbl b{display:block;font-size:0.94rem;}
  .store-btn .lbl small{color:var(--faint);font-size:0.66rem;letter-spacing:0.06em;}

  footer{border-top:1px solid var(--line);padding:44px 0 36px;}
  .foot-grid{display:flex;justify-content:space-between;gap:24px;flex-wrap:wrap;align-items:flex-start;}
  .foot-note{max-width:480px;color:var(--faint);font-size:0.78rem;}
  .foot-note b{color:var(--muted);}
  .foot-links{display:flex;gap:20px;font-size:0.82rem;color:var(--muted);flex-wrap:wrap;}

/* legal / prose pages */
.legal-hero{padding:56px 0 20px;}
.legal-hero .tag{margin-bottom:16px;}
.legal-updated{color:var(--faint);font-size:0.82rem;margin-top:8px;}
.prose{padding:20px 0 80px;max-width:760px;}
.prose h2{font-family:'Big Shoulders Display';text-transform:uppercase;font-size:1.5rem;margin:40px 0 12px;letter-spacing:0.01em;}
.prose h2:first-child{margin-top:0;}
.prose h3{font-size:1.02rem;margin:24px 0 8px;color:var(--text);}
.prose p{color:var(--muted);margin:0 0 14px;font-size:0.96rem;}
.prose ul{color:var(--muted);font-size:0.96rem;margin:0 0 14px;padding-left:20px;}
.prose li{margin-bottom:6px;}
.prose strong{color:var(--text);}
.prose a{color:var(--accent);text-decoration:underline;}
.legal-notice{
  background:rgba(232,168,85,0.09);border:1px solid rgba(232,168,85,0.35);color:#F0C182;
  border-radius:9px;padding:14px 18px;font-size:0.86rem;margin-bottom:36px;
}
.back-link{display:inline-flex;align-items:center;gap:6px;color:var(--muted);text-decoration:none;font-size:0.86rem;margin-bottom:18px;}
.back-link:hover{color:var(--accent);}
.legal-links{display:flex;gap:16px;flex-wrap:wrap;}

/* credibility engine */
.engine-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:20px;}
@media(max-width:760px){.engine-grid{grid-template-columns:1fr;}}
.engine-card{background:var(--surface);border:1px solid var(--line);border-radius:12px;padding:28px 26px;}
.engine-card .ehead{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-bottom:6px;}
.engine-card h3{font-family:'Big Shoulders Display';text-transform:uppercase;font-size:1.4rem;margin:0;font-weight:700;}
.pill{font-family:'IBM Plex Mono';font-size:0.62rem;letter-spacing:0.09em;padding:4px 9px;border-radius:99px;white-space:nowrap;flex:none;}
.pill.live{background:rgba(47,224,201,0.12);color:var(--accent);border:1px solid rgba(47,224,201,0.35);}
.pill.roadmap{background:rgba(232,168,85,0.1);color:var(--amber);border:1px solid rgba(232,168,85,0.3);}
.engine-card ul{margin:14px 0 12px;padding-left:18px;color:var(--muted);font-size:0.9rem;}
.engine-card li{margin-bottom:6px;}
.engine-card .note{font-size:0.8rem;color:var(--faint);margin:0;border-top:1px solid var(--line);padding-top:12px;}

/* science / citations */
.science{background:var(--surface-2);border:1px solid var(--line);border-radius:14px;padding:36px 34px;}
.science h3{font-family:'Big Shoulders Display';text-transform:uppercase;font-size:1.3rem;margin:0 0 14px;}
.science p{color:var(--muted);font-size:0.92rem;margin:0 0 12px;}
.cite-list{list-style:none;margin:18px 0 0;padding:0;display:flex;flex-direction:column;gap:8px;}
.cite-list li{font-size:0.82rem;color:var(--faint);}
.cite-list a{color:var(--muted);}

/* explainer section */
.explain{background:var(--surface);border-top:1px solid var(--line);border-bottom:1px solid var(--line);}
.explain-grid{display:grid;grid-template-columns:0.85fr 1.15fr;gap:56px;align-items:start;}
@media(max-width:860px){.explain-grid{grid-template-columns:1fr;gap:32px;}}
.explain h2{font-size:clamp(1.9rem,3.6vw,2.5rem);margin:14px 0 0;}
.faq-item{border-top:1px solid var(--line);padding:20px 0;}
.faq-item:first-child{border-top:none;padding-top:0;}
.faq-item h4{margin:0 0 8px;font-size:0.98rem;font-weight:600;}
.faq-item p{margin:0;color:var(--muted);font-size:0.92rem;}