/* VAHI — shared stylesheet
   Dark, typography-led, one accent. No gradients, no imagery. */

:root{
  /* Brand palette — sampled from the VAHI identity sheet */
  --bg:#0e1116;          /* ink        */
  --paper:#f4f3ee;       /* paper      */
  --accent:#c6f24e;      /* acid green */
  --state-grey:#8a8f98;  /* not verified */
  --state-amber:#ef9f27; /* in review    */
  --state-green:#0f6e56; /* bound        */

  --fg:#eaeae6;
  --muted:#8b8f96;
  --muted-2:#616568;
  --line:rgba(255,255,255,0.09);
  --sans: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  --mono: ui-monospace, SFMono-Regular, Menlo, Consolas, "Liberation Mono", monospace;
}

*{box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--bg);
  color:var(--fg);
  font-family:var(--sans);
  font-size:17px;
  line-height:1.6;
  -webkit-font-smoothing:antialiased;
}
a{color:inherit;}

.wrap{max-width:1100px;margin:0 auto;padding:0 32px;}
.prose{max-width:660px;}

/* skip link — accessibility */
.skip{
  position:absolute; left:-9999px;
  background:var(--accent); color:var(--bg);
  padding:10px 16px; z-index:100; border-radius:3px;
  font-size:14px; font-weight:600; text-decoration:none;
}
.skip:focus{left:16px; top:16px;}

/* nav */
header.nav{
  position:sticky; top:0; z-index:10;
  background:var(--bg);
  border-bottom:1px solid var(--line);
}
.nav-inner{
  display:flex; align-items:center; justify-content:space-between;
  gap:24px;
  padding:20px 32px;
  max-width:1100px; margin:0 auto;
}
.wordmark{
  display:inline-flex;
  align-items:center;
  gap:9px;
  font-size:20px;
  letter-spacing:-0.01em;
  font-weight:500;
  color:var(--fg);
  text-decoration:none;
  flex-shrink:0;
  line-height:1;
}
.wordmark svg{
  width:30px; height:30px;
  color:var(--accent);
  flex-shrink:0;
}
.foot-brand .wordmark{font-size:22px;}
.nav-links{
  display:flex; align-items:center; gap:26px;
  flex-wrap:wrap;
}
.nav-links a{
  font-size:14px;
  color:var(--muted);
  text-decoration:none;
}
.nav-links a:hover{color:var(--fg);}
.nav-links a[aria-current="page"]{color:var(--fg);}
.nav-cta{
  font-size:14px;
  color:var(--fg) !important;
  text-decoration:none;
  border:1px solid var(--line);
  padding:8px 15px;
  border-radius:3px;
}
.nav-cta:hover{border-color:var(--accent); color:var(--accent) !important;}

/* sections */
section{
  padding:110px 0;
  border-bottom:1px solid var(--line);
}
section:last-of-type{border-bottom:none;}
section.tight{padding:76px 0;}

.eyebrow{
  font-family:var(--mono);
  font-size:12px;
  letter-spacing:0.16em;
  text-transform:uppercase;
  color:var(--accent);
  margin:0 0 20px 0;
}
h1,h2,h3{font-weight:600; letter-spacing:-0.02em; margin:0;}
h1{font-size:clamp(2.4rem, 6vw, 4.2rem); line-height:1.05; max-width:820px;}
h1.page{font-size:clamp(2rem, 4.5vw, 3.2rem); max-width:700px;}
h2{font-size:clamp(1.6rem, 3.4vw, 2.3rem); line-height:1.15; max-width:660px;}
h3{font-size:1.15rem;}
p{margin:18px 0 0 0;}
p.lede{font-size:1.15rem; color:var(--muted); max-width:620px; margin-top:24px;}
.muted{color:var(--muted);}

/* buttons */
.cta-row{margin-top:44px; display:flex; align-items:center; gap:20px; flex-wrap:wrap;}
.btn{
  display:inline-block;
  background:var(--accent);
  color:var(--bg);
  font-weight:600;
  font-size:15px;
  text-decoration:none;
  padding:14px 24px;
  border-radius:3px;
}
.btn:hover{opacity:0.88;}
.btn-ghost{
  display:inline-block;
  border:1px solid var(--line);
  color:var(--fg);
  font-size:15px;
  text-decoration:none;
  padding:13px 22px;
  border-radius:3px;
}
.btn-ghost:hover{border-color:var(--accent); color:var(--accent);}
.status-note{font-family:var(--mono); font-size:13px; color:var(--muted-2);}

/* steps grid */
.steps{margin-top:64px; display:grid; grid-template-columns:1fr 1fr; gap:56px 64px;}
.step .num{font-family:var(--mono); font-size:13px; color:var(--accent); letter-spacing:0.08em;}
.step h3{margin-top:10px;}
.step p{color:var(--muted); font-size:0.98rem; margin-top:10px;}

/* layer blocks — how it works */
.layer{
  padding:48px 0;
  border-top:1px solid var(--line);
  display:grid;
  grid-template-columns:200px 1fr;
  gap:48px;
}
.layer:first-of-type{border-top:none;}
.layer .label{font-family:var(--mono); font-size:12px; letter-spacing:0.12em; color:var(--accent); text-transform:uppercase; line-height:1.7;}
.layer .label span{display:block; color:var(--muted-2);}
.layer .body{max-width:620px;}
.layer .body p{color:var(--muted);}
.layer .body h3{color:var(--fg);}

/* cards */
.split{display:grid; grid-template-columns:1fr 1fr; gap:32px; margin-top:56px;}
.card{border:1px solid var(--line); border-radius:4px; padding:32px;}
.card .tag{font-family:var(--mono); font-size:11px; letter-spacing:0.12em; text-transform:uppercase; color:var(--muted-2);}
.card h3{margin-top:6px;}
.card p{color:var(--muted); font-size:0.98rem;}
.card ul{margin:16px 0 0 0; padding-left:18px; color:var(--muted); font-size:0.95rem;}
.card li{margin:7px 0;}

/* stacked lines */
.lines{margin-top:44px; max-width:660px;}
.lines .line{padding:22px 0; border-top:1px solid var(--line); font-size:1.02rem;}
.lines .line:last-child{border-bottom:1px solid var(--line);}
.lines .line strong{display:block; font-weight:600; margin-bottom:5px;}
.lines .line span{color:var(--muted); font-size:0.97rem;}

/* legal / long-form text */
.legal{max-width:680px;}
.legal h2{font-size:1.25rem; margin-top:52px;}
.legal h2:first-of-type{margin-top:36px;}
.legal p, .legal li{color:var(--muted); font-size:0.98rem;}
.legal ul{padding-left:20px; margin-top:14px;}
.legal li{margin:9px 0;}
.legal .updated{font-family:var(--mono); font-size:13px; color:var(--muted-2); margin-top:12px;}

/* notice box — used for draft / pre-launch disclosures */
.notice{
  border:1px solid var(--line);
  border-left:2px solid var(--accent);
  border-radius:3px;
  padding:24px 28px;
  margin-top:36px;
  max-width:680px;
}
.notice p{margin:0; color:var(--muted); font-size:0.95rem;}
.notice p + p{margin-top:12px;}
.notice strong{color:var(--fg); font-weight:600;}

/* spacing utilities — kept as classes so the CSP needs no 'unsafe-inline' */
.mt-2{margin-top:28px;}
.mt-3{margin-top:32px;}
.mt-4{margin-top:36px;}
.trail{margin-top:32px; max-width:660px;}

/* standalone "last updated" line, outside .legal */
.updated{
  font-family:var(--mono);
  font-size:13px;
  color:var(--muted-2);
  margin-top:14px;
}

/* footer */
footer{padding:56px 0 64px 0; border-top:1px solid var(--line);}
.foot-top{display:flex; justify-content:space-between; gap:40px; flex-wrap:wrap;}
.foot-brand .wordmark{display:inline-flex; margin-bottom:8px;}
.foot-brand .tagline{display:block; color:var(--muted-2); font-size:0.9rem;}

/* ---------- verification states (from the identity system) ---------- */
.states{display:grid; grid-template-columns:repeat(3,1fr); gap:28px; margin-top:52px;}
.state{border:1px solid var(--line); border-radius:4px; padding:26px;}
.state svg{width:34px; height:34px; display:block; margin-bottom:18px;}
.state .name{
  font-family:var(--mono); font-size:11px; letter-spacing:0.13em;
  text-transform:uppercase; margin-bottom:9px;
}
.state.s-grey .name{color:var(--state-grey);}
.state.s-grey svg{color:var(--state-grey);}
.state.s-amber .name{color:var(--state-amber);}
.state.s-amber svg{color:var(--state-amber);}
.state.s-green .name{color:#2f9e7d;}
.state.s-green svg{color:#2f9e7d;}
.state p{margin:0; color:var(--muted); font-size:0.94rem;}
@media (max-width:820px){.states{grid-template-columns:1fr; gap:18px;}}
.foot-links{display:flex; gap:56px; flex-wrap:wrap;}
.foot-col h4{
  font-family:var(--mono); font-size:11px; letter-spacing:0.13em;
  text-transform:uppercase; color:var(--muted-2);
  margin:0 0 14px 0; font-weight:500;
}
.foot-col a{display:block; color:var(--muted); font-size:0.92rem; text-decoration:none; margin:8px 0;}
.foot-col a:hover{color:var(--fg);}
.fine{
  margin-top:44px; padding-top:28px;
  border-top:1px solid var(--line);
  color:var(--muted-2); font-size:0.82rem; line-height:1.7;
  max-width:720px;
}
.fine a{color:var(--muted);}

@media (max-width:820px){
  section{padding:72px 0;}
  section.tight{padding:56px 0;}
  .wrap{padding:0 22px;}
  .nav-inner{padding:16px 22px; gap:16px;}
  .nav-links{gap:18px;}
  .steps{grid-template-columns:1fr; gap:40px;}
  .split{grid-template-columns:1fr; gap:24px;}
  .layer{grid-template-columns:1fr; gap:16px; padding:36px 0;}
  .foot-links{gap:36px;}
}
@media (max-width:560px){
  /* Nav must stay usable on phones — India is mobile-first.
     Links wrap onto a second row rather than disappearing. */
  .nav-inner{flex-wrap:wrap; row-gap:12px;}
  .nav-links{width:100%; gap:16px; font-size:13px;}
  .nav-links a{font-size:13px;}
  .nav-cta{margin-left:auto; padding:7px 12px;}
}

/* ---------- chain diagram (CSS only — reflows, no image) ---------- */
.chain{
  list-style:none;
  margin:56px 0 0 0;
  padding:0;
  display:grid;
  grid-template-columns:repeat(5,1fr);
}
.chain-node{position:relative; padding-right:20px;}
.chain-node::before{
  content:"";
  position:absolute;
  top:7px; left:0; right:0;
  height:1px;
  background:var(--line);
}
.chain-node:last-child::before{right:calc(100% - 15px);}
.chain-dot{
  position:relative;
  display:block;
  width:15px; height:15px;
  border-radius:50%;
  border:1px solid var(--accent);
  background:var(--bg);
  margin-bottom:22px;
}
.chain-node.anchor .chain-dot{background:var(--accent);}
.chain-when{
  display:block;
  font-family:var(--mono);
  font-size:11px;
  letter-spacing:0.12em;
  text-transform:uppercase;
  color:var(--accent);
  margin-bottom:7px;
}
.chain-node strong{display:block; font-size:1rem; font-weight:600; margin-bottom:6px;}
.chain-what{display:block; color:var(--muted); font-size:0.9rem; line-height:1.5;}
.chain-caption{margin-top:40px; color:var(--muted-2); font-size:0.9rem; max-width:620px;}

@media (max-width:820px){
  .chain{grid-template-columns:1fr; gap:0;}
  .chain-node{padding:0 0 32px 30px;}
  .chain-node::before{
    top:0; bottom:0; left:7px; right:auto;
    width:1px; height:auto;
  }
  .chain-node:last-child::before{bottom:auto; height:7px; right:auto;}
  .chain-dot{position:absolute; left:0; top:0; margin-bottom:0;}
}

/* ---------- two-audience split ---------- */
.audience{display:grid; grid-template-columns:1fr 1fr; gap:0; margin-top:56px; border:1px solid var(--line); border-radius:4px;}
.audience > div{padding:36px;}
.audience > div:first-child{border-right:1px solid var(--line);}
.audience .who{
  font-family:var(--mono); font-size:11px; letter-spacing:0.13em;
  text-transform:uppercase; color:var(--accent); margin-bottom:16px;
}
.audience h3{margin-bottom:14px;}
.audience ul{margin:0; padding-left:18px; color:var(--muted); font-size:0.96rem;}
.audience li{margin:10px 0;}
@media (max-width:820px){
  .audience{grid-template-columns:1fr;}
  .audience > div:first-child{border-right:none; border-bottom:1px solid var(--line);}
  .audience > div{padding:28px;}
}

/* ---------- FAQ (native details/summary, no JS) ---------- */
.faq{margin-top:44px; max-width:680px;}
.faq details{border-top:1px solid var(--line);}
.faq details:last-of-type{border-bottom:1px solid var(--line);}
.faq summary{
  padding:22px 0;
  cursor:pointer;
  font-size:1.02rem;
  font-weight:600;
  list-style:none;
  display:flex;
  justify-content:space-between;
  gap:20px;
}
.faq summary::-webkit-details-marker{display:none;}
.faq summary::after{content:"+"; color:var(--accent); font-weight:400; flex-shrink:0;}
.faq details[open] summary::after{content:"–";}
.faq summary:hover{color:var(--accent);}
.faq .answer{padding:0 0 24px 0; color:var(--muted); font-size:0.97rem; max-width:620px;}
.faq .answer p{margin:0 0 12px 0;}
.faq .answer p:last-child{margin-bottom:0;}

/* ---------- why now ---------- */
.forces{display:grid; grid-template-columns:repeat(3,1fr); gap:40px; margin-top:52px;}
.forces .force .n{font-family:var(--mono); font-size:12px; color:var(--accent); letter-spacing:0.1em;}
.forces .force h3{font-size:1.05rem; margin:12px 0 8px 0;}
.forces .force p{color:var(--muted); font-size:0.94rem; margin:0;}
@media (max-width:820px){.forces{grid-template-columns:1fr; gap:32px;}}