:root {
  --ink:#101828; --mut:#667085; --line:#e4e7ec;
  --brand:#175cd3; --brand-dark:#0b3d91; --ok:#067647; --warn:#b54708; --red:#b42318;
  --bg:#f9fafb; --card:#fff;
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { margin:0; font-family: ui-sans-serif, system-ui, -apple-system, "Segoe UI", Roboto, sans-serif; color:var(--ink); background:var(--bg); -webkit-font-smoothing:antialiased; }
img, video { max-width:100%; }
a { color:var(--brand); }

.wrap { max-width: 1080px; margin: 0 auto; padding: 0 20px 64px; }
.wrap.narrow { max-width: 760px; }

/* ---------- header ---------- */
.sitehead { position:sticky; top:0; z-index:50; background:rgba(255,255,255,.92); backdrop-filter: blur(8px); border-bottom:1px solid var(--line); }
.sitehead .inner { max-width:1080px; margin:0 auto; padding:12px 20px; display:flex; align-items:center; justify-content:space-between; gap:12px; }
.logo { font-weight:800; font-size:20px; letter-spacing:-0.02em; text-decoration:none; color:var(--ink); white-space:nowrap; }
.logo span { color: var(--brand); }
nav { display:flex; align-items:center; gap:4px; flex-wrap:wrap; justify-content:flex-end; }
nav a { padding:8px 10px; color:var(--mut); text-decoration:none; font-size:14px; border-radius:8px; white-space:nowrap; }
nav a:hover { color:var(--ink); background:#f2f4f7; }
nav a.btn { color:#fff; margin-left:6px; }
nav a.btn:hover { background:var(--brand-dark); }
@media (max-width: 640px) {
  .sitehead .inner { flex-direction:column; align-items:flex-start; gap:4px; padding:10px 16px; }
  nav { justify-content:flex-start; margin-left:-10px; }
  nav a:not(.btn) { padding:6px 7px; font-size:13px; }
}

/* legacy header (old pages) */
header { display:flex; align-items:center; justify-content:space-between; padding: 14px 0; border-bottom:1px solid var(--line); }

/* ---------- hero ---------- */
.hero { padding: 72px 0 40px; text-align:center; }
.hero .pill { margin-bottom:18px; }
h1 { font-size: 44px; letter-spacing:-0.03em; margin: 0 0 14px; line-height:1.1; }
.hero .sub { max-width: 640px; margin: 0 auto 28px; }
.sub { color:var(--mut); font-size:17px; line-height:1.6; }
.cta { display:flex; gap:12px; justify-content:center; flex-wrap:wrap; }
@media (max-width: 640px) { h1 { font-size:32px; } .hero { padding: 48px 0 28px; } }
.pagehead { padding: 44px 0 8px; }
.pagehead h1 { font-size: 34px; }
@media (max-width: 640px) { .pagehead h1 { font-size: 27px; } }

/* ---------- sections ---------- */
section.block { padding: 44px 0; border-top:1px solid var(--line); }
section.block:first-of-type { border-top:0; }
.kicker { font-size:13px; font-weight:700; letter-spacing:.08em; text-transform:uppercase; color:var(--brand); margin:0 0 8px; }
h2.sec { font-size:28px; letter-spacing:-0.02em; margin:0 0 8px; }
.secsub { color:var(--mut); font-size:15px; margin:0 0 26px; max-width:640px; line-height:1.6; }
@media (max-width: 640px) { h2.sec { font-size:23px; } }

/* ---------- cards & grids ---------- */
.cards { display:grid; gap:14px; grid-template-columns: 1fr; }
@media (min-width: 640px) { .cards { grid-template-columns: 1fr 1fr; } }
.grid3 { display:grid; gap:14px; grid-template-columns: 1fr; }
@media (min-width: 720px) { .grid3 { grid-template-columns: 1fr 1fr 1fr; } }
.grid2 { display:grid; gap:14px; grid-template-columns: 1fr; }
@media (min-width: 720px) { .grid2 { grid-template-columns: 1fr 1fr; } }
.card { background:var(--card); border:1px solid var(--line); border-radius:14px; padding:20px; }
.card h2 { margin:0 0 6px; font-size:18px; }
.card h3 { margin:0 0 6px; font-size:16px; }
.card p { margin:0 0 14px; color:var(--mut); font-size:14px; line-height:1.55; }
.card p:last-child { margin-bottom:0; }

/* steps */
.step { background:var(--card); border:1px solid var(--line); border-radius:14px; padding:22px; }
.step .n { display:inline-flex; width:32px; height:32px; border-radius:50%; background:#eef4ff; color:var(--brand); font-weight:800; align-items:center; justify-content:center; margin-bottom:12px; }
.step h3 { margin:0 0 6px; font-size:16px; }
.step p { margin:0; color:var(--mut); font-size:14px; line-height:1.55; }

/* pills & badges */
.pill { display:inline-block; font-size:12px; font-weight:700; padding:4px 12px; border-radius:999px; background:#eef4ff; color:var(--brand); }
.pill.ok { background:#d1fadf; color:var(--ok); }
.pill.warn { background:#fef0c7; color:var(--warn); }
.pill.planned { background:#f2f4f7; color:var(--mut); }
.badge { display:inline-block; font-size:12px; font-weight:700; padding:3px 10px; border-radius:999px; margin-bottom:10px; }
.badge.ok { background:#d1fadf; color:var(--ok); }
.badge.warn { background:#fef0c7; color:var(--warn); }
.badge.revoked { background:#fee4e2; color:var(--red); }

/* buttons */
.btn { display:inline-block; background:var(--brand); color:#fff; border:0; border-radius:10px; padding:12px 20px; font-size:15px; font-weight:600; cursor:pointer; text-decoration:none; text-align:center; }
.btn:hover { background:var(--brand-dark); }
.btn.ghost { background:#fff; color:var(--ink); border:1px solid var(--line); }
.btn.ghost:hover { background:#f2f4f7; }
.btn.green { background:var(--ok); }
.btn.green:hover { background:#05603a; }
.btn:disabled { opacity:.6; cursor:default; }

/* verdict strip (how replies look) */
.verdicts { display:grid; gap:10px; }
.verdict { border-radius:12px; padding:14px 16px; font-size:14px; line-height:1.5; border:1px solid var(--line); background:#fff; }
.verdict b.v { font-size:15px; }
.verdict.ok { border-color:#a6f4c5; background:#f6fef9; }
.verdict.forged { border-color:#fecdca; background:#fffbfa; }
.verdict.neutral { border-color:#e4e7ec; background:#fcfcfd; }
.verdict .mut { color:var(--mut); font-size:13px; }
.vdot { display:inline-block; width:13px; height:13px; border-radius:50%; margin-right:7px; vertical-align:-1px; }
.vdot.green { background:#12b76a; }
.vdot.red { background:#f04438; }
.vdot.grey { background:#d0d5dd; border:1px solid #98a2b3; }

/* video */
.video-slot { border:1px solid var(--line); border-radius:16px; background:#101828; overflow:hidden; }
.video-slot video { display:block; width:100%; aspect-ratio:16/9; background:#101828; }
.video-ph { aspect-ratio:16/9; display:flex; flex-direction:column; align-items:center; justify-content:center; color:#98a2b3; gap:8px; background:linear-gradient(135deg,#101828,#1d2939); border-radius:16px; }
.video-ph .play { width:64px; height:64px; border-radius:50%; background:rgba(255,255,255,.1); display:flex; align-items:center; justify-content:center; }
.demo-video { display:block; width:100%; aspect-ratio:16/9; border-radius:16px; background:#101828; border:1px solid var(--line); }

/* pricing */
.price { background:var(--card); border:1px solid var(--line); border-radius:16px; padding:24px; display:flex; flex-direction:column; }
.price.hot { border:2px solid var(--brand); }
.price .amt { font-size:30px; font-weight:800; letter-spacing:-0.02em; margin:6px 0 2px; }
.price .per { color:var(--mut); font-size:13px; margin-bottom:14px; }
.price ul { margin:0 0 18px; padding-left:18px; color:var(--mut); font-size:14px; line-height:1.7; }
.price .btn { margin-top:auto; }

/* roadmap */
.roadmap { list-style:none; margin:0; padding:0; display:grid; gap:10px; }
.roadmap li { background:var(--card); border:1px solid var(--line); border-radius:12px; padding:14px 16px; font-size:14px; color:var(--mut); display:flex; gap:10px; align-items:flex-start; }
.roadmap li b { color:var(--ink); }

/* faq */
details.faq { background:var(--card); border:1px solid var(--line); border-radius:12px; padding:14px 16px; }
details.faq + details.faq { margin-top:10px; }
details.faq summary { font-weight:600; font-size:15px; cursor:pointer; }
details.faq p { color:var(--mut); font-size:14px; line-height:1.6; margin:10px 0 0; }

/* forms */
label { display:block; font-size:13px; font-weight:600; margin: 14px 0 5px; }
input, select { width:100%; padding:10px 12px; border:1px solid var(--line); border-radius:10px; font-size:15px; background:#fff; color:var(--ink); }
input:focus { outline:2px solid #b2ddff; border-color:#84caff; }
input[type=file] { padding:8px; }
.hint { font-size:12px; color:var(--mut); margin-top:4px; line-height:1.5; }

/* result block (check/verify/issuer) */
.result { margin-top:22px; border-radius:14px; padding:18px; border:1px solid var(--line); background:#fff; display:none; }
.result.show { display:block; }
.result.ok { border-color:#a6f4c5; background:#f6fef9; }
.result.bad { border-color:#fedf89; background:#fffaeb; }
.result.revoked { border-color:#fecdca; background:#fffbfa; }
table { width:100%; border-collapse:collapse; font-size:14px; margin-top:8px; }
td { padding:7px 4px; border-bottom:1px solid var(--line); vertical-align:top; }
td:first-child { color:var(--mut); width:42%; }
.mono { font-family: ui-monospace, SFMono-Regular, Menlo, monospace; font-size:12px; word-break: break-all; }
.stamp { border:2px dashed var(--brand); border-radius:12px; padding:14px; margin-top:16px; display:flex; gap:14px; align-items:center; background:#fff; flex-wrap:wrap; }
.stamp img { width:110px; height:110px; }
.stamp .sid { font-weight:700; }
.qrbox { text-align:center; margin-top:14px; }
.qrbox img { width:180px; height:180px; border:1px solid var(--line); border-radius:10px; }
code.k { background:#eef4ff; padding:2px 6px; border-radius:6px; font-size:13px; }

/* code blocks (docs) */
pre.code { background:#101828; color:#e4e7ec; border-radius:12px; padding:16px; overflow-x:auto; font-size:13px; line-height:1.6; font-family: ui-monospace, SFMono-Regular, Menlo, monospace; }
pre.code .c { color:#98a2b3; }
.endpoint { display:flex; gap:10px; align-items:baseline; background:var(--card); border:1px solid var(--line); border-radius:10px; padding:10px 14px; margin-top:10px; flex-wrap:wrap; }
.endpoint .m { font-weight:800; font-size:12px; padding:2px 8px; border-radius:6px; background:#eef4ff; color:var(--brand); }
.endpoint .m.get { background:#d1fadf; color:var(--ok); }
.endpoint .p { font-family: ui-monospace, SFMono-Regular, Menlo, monospace; font-size:13px; word-break:break-all; }

/* footer */
.foot { margin-top:40px; color:var(--mut); font-size:12px; line-height:1.6; }
.sitefoot { border-top:1px solid var(--line); margin-top:40px; padding:28px 0 8px; color:var(--mut); font-size:13px; }
.sitefoot .cols { display:flex; gap:32px; flex-wrap:wrap; justify-content:space-between; }
.sitefoot a { color:var(--mut); text-decoration:none; display:block; padding:3px 0; }
.sitefoot a:hover { color:var(--ink); }
.sitefoot .b { font-weight:700; color:var(--ink); margin-bottom:6px; }