*{margin:0;padding:0;box-sizing:border-box}

:root{
  --bg:#0a0e1a;
  --bg-2:#0e1424;
  --mint:#5de6c8;
  --mint-bright:#a8f5e0;
  --mint-deep:#2c8a76;
  --text:#ffffff;
  --text-2:#a0a0b0;
  --text-3:#6b6b7d;
  --line:rgba(255,255,255,.09);
  --line-mint:rgba(93,230,200,.22);
  --card:rgba(255,255,255,.028);
  --r:16px;
  --r-sm:10px;
  --mono:'JetBrains Mono',ui-monospace,monospace;
}

html{scroll-behavior:smooth}

body{
  font-family:'Inter',-apple-system,BlinkMacSystemFont,sans-serif;
  background:
    radial-gradient(ellipse 900px 600px at 80% -5%, rgba(93,230,200,.055), transparent 65%),
    radial-gradient(ellipse 700px 500px at 5% 40%, rgba(93,230,200,.03), transparent 70%),
    var(--bg);
  color:var(--text-2);
  line-height:1.65;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}

.wrap{max-width:1080px;margin:0 auto;padding:0 24px}
.narrow{max-width:760px;margin-left:auto;margin-right:auto}

/* ── nav ───────────────────────────────── */
.nav{position:sticky;top:0;z-index:60;background:rgba(10,14,26,.82);backdrop-filter:blur(14px);border-bottom:1px solid var(--line)}
.nav-row{max-width:1080px;margin:0 auto;padding:14px 24px;display:flex;align-items:center;justify-content:space-between;gap:20px}
.nav-logo{font-family:var(--mono);font-size:1rem;font-weight:700;color:var(--mint);letter-spacing:-.4px;text-decoration:none}
.nav-links{display:flex;gap:26px}
.nav-links a{color:var(--text-2);text-decoration:none;font-size:.85rem;font-weight:500;transition:color .18s}
.nav-links a:hover{color:var(--mint)}
@media(max-width:680px){.nav-links{display:none}}

/* ── progress rail ─────────────────────── */
.progress{position:fixed;top:0;left:0;height:2px;background:linear-gradient(90deg,var(--mint-deep),var(--mint));width:0;z-index:70;transition:width .1s linear}

/* ── hero ──────────────────────────────── */
.hero{padding:96px 0 72px;text-align:center}
.eyebrow{display:inline-flex;align-items:center;gap:9px;padding:7px 17px;border:1px solid var(--line-mint);border-radius:100px;background:rgba(93,230,200,.05);font-size:.71rem;font-weight:700;letter-spacing:.13em;text-transform:uppercase;color:var(--mint);margin-bottom:30px}
.dot{width:6px;height:6px;border-radius:50%;background:var(--mint);animation:pulse 2.2s ease-in-out infinite}
@keyframes pulse{0%,100%{opacity:1;transform:scale(1)}50%{opacity:.35;transform:scale(.8)}}

h1{
  font-size:clamp(2.3rem,5.6vw,4.1rem);font-weight:900;line-height:1.05;
  letter-spacing:-2.4px;color:var(--text);margin-bottom:26px;
  text-wrap:balance;
}
h1 .m{
  display:block;font-size:.78em;letter-spacing:-1.5px;margin-top:.12em;
  background:linear-gradient(120deg,var(--mint-bright) 0%,var(--mint) 45%,var(--mint-deep) 100%);
  -webkit-background-clip:text;background-clip:text;-webkit-text-fill-color:transparent;color:transparent;
}
.hero p{font-size:1.14rem;max-width:660px;margin:0 auto 20px;line-height:1.72}
.hero .sub{font-size:.93rem;color:var(--text-3);max-width:620px;margin:0 auto}

/* ── stakes ────────────────────────────── */
.stakes{padding:34px 0 84px}
.stake-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(215px,1fr));gap:16px;margin-top:34px}
.stake{background:var(--card);border:1px solid var(--line);border-radius:var(--r);padding:26px 22px;transition:border-color .3s,transform .3s}
.stake:hover{border-color:var(--line-mint);transform:translateY(-2px)}
.stake .n{font-family:var(--mono);font-size:1.85rem;font-weight:700;color:var(--mint);letter-spacing:-1.2px;line-height:1.1;display:block;margin-bottom:9px}
.stake .l{font-size:.86rem;line-height:1.55;color:var(--text-2)}
.stake .src{font-size:.7rem;color:var(--text-3);margin-top:11px;display:block}

.pull{border-left:2px solid var(--mint);padding:4px 0 4px 24px;margin:40px 0 0;font-size:1.06rem;color:var(--text);line-height:1.7}
.pull cite{display:block;margin-top:12px;font-size:.79rem;color:var(--text-3);font-style:normal}

/* ── section heads ─────────────────────── */
.sec-head{text-align:center;margin-bottom:16px}
.sec-label{font-family:var(--mono);font-size:.72rem;font-weight:500;letter-spacing:.16em;text-transform:uppercase;color:var(--mint);margin-bottom:14px}
h2{font-size:clamp(1.7rem,3.6vw,2.5rem);font-weight:800;letter-spacing:-1.2px;color:var(--text);line-height:1.16;margin-bottom:14px}
.sec-sub{font-size:1.02rem;max-width:640px;margin:0 auto}

/* ── scenario frame ────────────────────── */
.scenario{border:1px dashed var(--line-mint);border-radius:var(--r);padding:22px 26px;background:rgba(93,230,200,.028);margin:56px auto 8px}
.scenario h3{font-size:.79rem;font-weight:700;letter-spacing:.1em;text-transform:uppercase;color:var(--mint);margin-bottom:10px}
.scenario p{font-size:.92rem;line-height:1.68}

/* ── timeline ──────────────────────────── */
.timeline{position:relative;padding:64px 0 40px}
.spine{position:absolute;left:23px;top:0;bottom:0;width:2px;background:var(--line)}
.spine-fill{position:absolute;left:0;top:0;width:2px;height:0;background:linear-gradient(180deg,var(--mint),var(--mint-deep));transition:height .18s linear}
@media(min-width:900px){.spine{left:50%;transform:translateX(-50%)}}

.phase{position:relative;z-index:3;margin:0 0 12px 0;padding-left:62px}
@media(min-width:900px){.phase{padding-left:0;text-align:center}}
.phase-tag{display:inline-block;font-family:var(--mono);font-size:.72rem;font-weight:700;letter-spacing:.14em;text-transform:uppercase;color:var(--bg);background:var(--mint);padding:6px 15px;border-radius:100px}
.phase-tag.post{background:var(--bg);color:var(--mint);border:1px solid var(--mint)}
/* inline-block + page background so the timeline spine is masked, not struck through */
.phase-note{display:inline-block;font-size:.85rem;color:var(--text-3);margin-top:9px;background:var(--bg);padding:0 14px}

.stage{position:relative;padding:0 0 46px 62px;opacity:0;transform:translateY(26px);transition:opacity .6s cubic-bezier(.2,.7,.3,1),transform .6s cubic-bezier(.2,.7,.3,1)}
.stage.in{opacity:1;transform:none}
.node{position:absolute;left:12px;top:4px;width:24px;height:24px;border-radius:50%;background:var(--bg);border:2px solid var(--mint);display:grid;place-items:center;font-family:var(--mono);font-size:.68rem;font-weight:700;color:var(--mint);z-index:2}
.stage.post .node{border-color:var(--mint-deep);color:var(--mint-deep)}
.stage.in .node{box-shadow:0 0 0 5px rgba(93,230,200,.09)}

.t{font-family:var(--mono);font-size:.75rem;color:var(--mint);letter-spacing:.04em;margin-bottom:7px}
.stage h3{font-size:1.16rem;font-weight:700;color:var(--text);letter-spacing:-.4px;margin-bottom:9px;line-height:1.35}
.stage > p{font-size:.94rem;line-height:1.7;max-width:560px}

/* desktop: alternate sides */
@media(min-width:900px){
  .stage{width:calc(50% - 46px);padding:0 0 54px 0}
  .stage:nth-child(odd){margin-left:0;text-align:right}
  .stage:nth-child(odd) .node{left:auto;right:-58px}
  .stage:nth-child(odd) > p{margin-left:auto}
  .stage:nth-child(even){margin-left:calc(50% + 46px);text-align:left}
  .stage:nth-child(even) .node{left:-58px}
  .stage:nth-child(odd) .artifact{text-align:left}
}

/* ── artifacts ─────────────────────────── */
.artifact{margin-top:16px;border:1px solid var(--line);border-radius:var(--r-sm);background:rgba(255,255,255,.02);overflow:hidden;backdrop-filter:blur(6px)}
.artifact-head{display:flex;align-items:center;gap:8px;padding:9px 14px;border-bottom:1px solid var(--line);background:rgba(255,255,255,.022)}
.artifact-head .ic{font-size:.8rem}
.artifact-head .lbl{font-family:var(--mono);font-size:.68rem;letter-spacing:.09em;text-transform:uppercase;color:var(--text-3)}
.artifact-body{padding:15px 16px}

.line{display:flex;gap:9px;margin-bottom:11px;font-size:.87rem;line-height:1.6;text-align:left}
.line:last-child{margin-bottom:0}
.who{flex:0 0 auto;font-family:var(--mono);font-size:.7rem;font-weight:700;letter-spacing:.06em;padding-top:3px;min-width:52px}
.who.ai{color:var(--mint)}
.who.them{color:var(--text-3)}
.said{color:var(--text-2)}
.said em{color:var(--text);font-style:normal;font-weight:600}

.kv{display:flex;justify-content:space-between;gap:14px;padding:7px 0;border-bottom:1px solid rgba(255,255,255,.05);font-size:.84rem;text-align:left}
.kv:last-child{border-bottom:0}
.kv .k{color:var(--text-3)}
.kv .v{color:var(--text);font-weight:600;font-family:var(--mono);font-size:.8rem;text-align:right}
.kv .v.ok{color:var(--mint)}
.kv .v.warn{color:#f0b849}

.sms{background:rgba(93,230,200,.07);border:1px solid var(--line-mint);border-radius:12px;padding:12px 14px;font-size:.86rem;color:var(--text);line-height:1.6;text-align:left}

.human{margin-top:13px;font-size:.8rem;color:var(--text-3);display:flex;gap:8px;align-items:flex-start;text-align:left;line-height:1.55}
.human b{color:var(--text-2);font-weight:600}
.stage:nth-child(odd) .human,.stage:nth-child(odd) .kv,.stage:nth-child(odd) .line{}

/* ── ledger ────────────────────────────── */
.ledger{margin:60px 0 0;border:1px solid var(--line-mint);border-radius:var(--r);overflow:hidden}
.ledger-head{padding:20px 26px;border-bottom:1px solid var(--line);background:rgba(93,230,200,.045)}
.ledger-head h3{font-size:1.06rem;color:var(--text);font-weight:700;letter-spacing:-.3px}
.ledger-head p{font-size:.85rem;margin-top:5px}
.ledger-body{padding:8px 26px 22px}
.lrow{display:flex;justify-content:space-between;gap:16px;padding:13px 0;border-bottom:1px solid rgba(255,255,255,.05);font-size:.9rem}
.lrow:last-child{border-bottom:0}
.lrow .k{color:var(--text-2)}
.lrow .v{font-family:var(--mono);font-weight:700;color:var(--text);white-space:nowrap}
.lrow.total{padding-top:17px;margin-top:5px;border-top:1px solid var(--line-mint);border-bottom:0}
.lrow.total .k{color:var(--text);font-weight:700}
.lrow.total .v{color:var(--mint);font-size:1.05rem}

/* ── cta ───────────────────────────────── */
.cta{margin:88px 0 0;padding:52px 34px;text-align:center;border:1px solid var(--line-mint);border-radius:20px;background:linear-gradient(160deg,rgba(93,230,200,.07),rgba(93,230,200,.015))}
.cta h2{margin-bottom:12px}
.cta p{max-width:520px;margin:0 auto 28px;font-size:1rem}
.btn{display:inline-block;background:var(--mint);color:#06231d;padding:15px 34px;border-radius:var(--r-sm);font-family:inherit;font-size:.97rem;font-weight:800;text-decoration:none;transition:transform .18s,box-shadow .18s}
.btn:hover{transform:translateY(-2px);box-shadow:0 10px 30px rgba(93,230,200,.22)}
.btn-ghost{display:inline-block;margin-left:10px;padding:15px 28px;border:1px solid var(--line-mint);border-radius:var(--r-sm);color:var(--text-2);text-decoration:none;font-size:.95rem;font-weight:600;transition:color .18s,border-color .18s}
.btn-ghost:hover{color:var(--mint);border-color:var(--mint)}
@media(max-width:560px){.btn-ghost{margin:12px 0 0;display:block}}

/* ── sources ───────────────────────────── */
.sources{margin:76px 0 0;padding:26px 0 0;border-top:1px solid var(--line)}
.sources h4{font-family:var(--mono);font-size:.72rem;letter-spacing:.14em;text-transform:uppercase;color:var(--text-3);margin-bottom:14px}
.sources ol{list-style:none;counter-reset:s}
.sources li{counter-increment:s;font-size:.81rem;line-height:1.65;color:var(--text-3);margin-bottom:9px;padding-left:26px;position:relative}
.sources li::before{content:"[" counter(s) "]";position:absolute;left:0;font-family:var(--mono);color:var(--mint-deep)}
.sources a{color:var(--text-2);text-decoration:none;border-bottom:1px solid var(--line)}
.sources a:hover{color:var(--mint);border-color:var(--mint)}

/* ── footer ────────────────────────────── */
footer{margin-top:70px;padding:40px 0 52px;border-top:1px solid var(--line);text-align:center}
footer .links{display:flex;flex-wrap:wrap;justify-content:center;gap:10px 22px;margin-bottom:18px}
footer .links a{color:var(--text-3);text-decoration:none;font-size:.83rem;transition:color .18s}
footer .links a:hover{color:var(--mint)}
footer p{font-size:.81rem;color:var(--text-3)}
footer p a{color:var(--text-2);text-decoration:none}

@media(prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  .stage{opacity:1;transform:none;transition:none}
  .dot{animation:none}
  .progress,.spine-fill{transition:none}
}

/* P5PI-LIGHT-THEME:START */
/* Light token set. Values match ai-assistant/odd-jobs/walkthrough-light.css,
   which was already shipped and accepted, so the two walkthrough designs stay
   the same design. Declared after the original :root, so the originals remain
   in the file and deleting this block restores them. */
:root{
  --bg:#F1F2F0; --bg-2:#E8EAE6;
  --mint:#0F766E; --mint-bright:#0D9488; --mint-deep:#0B554F;
  --text:#0D100F; --text-2:#4A5561;
  /* --text-3 is NOT the faint grey used elsewhere. It carries citations, source
     lines, timestamps and field labels -- all small text -- and the lighter
     value measured 2.87:1 on this ground. This is ~4.6:1. */
  --text-3:#6B736E;
  --line:rgba(11,18,32,.11); --line-mint:rgba(15,118,110,.28);
  --card:#FFFFFF;
}
body{
  background:#F1F2F0 !important;background-image:url("data:image/svg+xml,%3Csvg%20xmlns%3D%27http%3A%2F%2Fwww.w3.org%2F2000%2Fsvg%27%20width%3D%27200%27%20height%3D%27200%27%20viewBox%3D%270%200%20200%20200%27%3E%3Ctext%20x%3D%27100.0%27%20y%3D%27115.99999999999999%27%20font-family%3D%22Georgia%2C%27Times%20New%20Roman%27%2Cserif%22%20font-size%3D%2723%27%20fill%3D%27%25230F766E%27%20fill-opacity%3D%27.18%27%20text-anchor%3D%27middle%27%3E%26%23960%3B%3C%2Ftext%3E%3C%2Fsvg%3E"),url("data:image/svg+xml,%3Csvg%20xmlns%3D%27http%3A%2F%2Fwww.w3.org%2F2000%2Fsvg%27%20width%3D%2740%27%20height%3D%2740%27%20viewBox%3D%270%200%2040%2040%27%3E%3Ctext%20x%3D%2710.0%27%20y%3D%2712.8%27%20font-family%3D%22Georgia%2C%27Times%20New%20Roman%27%2Cserif%22%20font-size%3D%2714%27%20fill%3D%27%25230D100F%27%20fill-opacity%3D%27.085%27%20text-anchor%3D%27middle%27%3E%26%23960%3B%3C%2Ftext%3E%3Ctext%20x%3D%2730.0%27%20y%3D%2732.8%27%20font-family%3D%22Georgia%2C%27Times%20New%20Roman%27%2Cserif%22%20font-size%3D%2714%27%20fill%3D%27%25230D100F%27%20fill-opacity%3D%27.085%27%20text-anchor%3D%27middle%27%3E%26%23960%3B%3C%2Ftext%3E%3C%2Fsvg%3E"),repeating-linear-gradient(0deg,rgba(13,16,15,.020) 0 1px,transparent 1px 4px);background-size:200px 200px,40px 40px,auto;background-attachment:fixed;
  color:#4A5561;
}
.nav{background:rgba(241,242,240,.93) !important;border-bottom:1px solid rgba(11,18,32,.11)}
.nav-logo{color:#0F766E}
/* the two colours in this file that are not tokens */
.stage.on,.node.on{color:#0F766E}
/* #f0b849 was the highlight amber on black. It measured 1.6:1 here -- the
   qualification values it marks were the least readable text on the page. */
.v,.kv .v,.amber,[style*="f0b849"]{color:#B45309 !important}
/* P5PI-LIGHT-THEME:END */