:root{
  --bg:#f6f8fc;
  --panel:#ffffff;
  --text:#0f172a;
  --muted:#475569;
  --muted2:#64748b;
  --border:#e5e7eb;
  --accent:#2563eb;     /* clean blue */
  --accent2:#1d4ed8;
  --shadow: 0 10px 30px rgba(15, 23, 42, .10);
}

*{box-sizing:border-box}
html,body{height:100%}
body{
  margin:0;
  font-family:ui-sans-serif,system-ui,-apple-system,Segoe UI,Roboto,Helvetica,Arial;
  background:
    radial-gradient(900px 500px at 20% 0%, rgba(37,99,235,.08), transparent 60%),
    radial-gradient(900px 500px at 90% 10%, rgba(99,102,241,.06), transparent 55%),
    var(--bg);
  color:var(--text);
}

a{color:inherit;text-decoration:none}
.container{max-width:1100px;margin:0 auto;padding:26px 18px}

.top{
  position:sticky;top:0;z-index:10;
  background: rgba(246,248,252,.85);
  backdrop-filter: blur(10px);
  border-bottom:1px solid var(--border);
}
.nav{display:flex;align-items:center;justify-content:space-between;gap:12px}

.brand{display:flex;align-items:center;gap:10px}
.logo{
  width:28px;height:28px;border-radius:10px;
  background: linear-gradient(135deg, rgba(37,99,235,.95), rgba(99,102,241,.85));
  box-shadow:0 10px 25px rgba(37,99,235,.18);
}
.brandText{display:flex;align-items:center;gap:10px}
.brandName{font-weight:800;letter-spacing:.2px}
.brandTag{
  font-size:12px;color:var(--muted);
  border:1px solid var(--border);
  padding:6px 10px;border-radius:999px;
  background:#fff;
}

.navLinks{display:flex;gap:10px;align-items:center;flex-wrap:wrap}
.pill{
  font-size:12px;color:var(--muted);
  border:1px solid var(--border);
  padding:7px 10px;border-radius:999px;
  background:#fff;
}
.pill:hover{border-color:#cbd5e1}
.pillMuted{opacity:.75;cursor:default}
.pillMuted:hover{border-color:var(--border)}

.hero{padding:28px 0 10px;display:grid;grid-template-columns:1.22fr .78fr;gap:16px}
@media (max-width: 920px){.hero{grid-template-columns:1fr}}

.card{
  border:1px solid var(--border);
  background: var(--panel);
  border-radius:18px;
  padding:18px;
  box-shadow: var(--shadow);
}

.kicker{font-size:13px;color:var(--muted2);margin-bottom:10px}
h1{font-size:44px;line-height:1.05;margin:0 0 12px}
@media (max-width:520px){h1{font-size:36px}}
.lead{font-size:18px;line-height:1.5;color:var(--muted);margin:0 0 16px}

.tri{display:grid;grid-template-columns:repeat(3,1fr);gap:12px;margin-top:10px}
@media (max-width:920px){.tri{grid-template-columns:1fr}}
.miniCard{
  border:1px solid var(--border);
  background:#fff;
  border-radius:14px;
  padding:14px
}
.miniTitle{font-weight:800;margin-bottom:6px}
.miniText{font-size:13px;color:var(--muted2);line-height:1.4}

.hr{height:1px;background:var(--border);margin:18px 0}

.bullets{display:flex;flex-direction:column;gap:12px}
.bullet{display:flex;gap:10px;padding-top:12px;border-top:1px solid var(--border)}
.bullet:first-child{border-top:none;padding-top:0}
.dot{width:10px;height:10px;border-radius:999px;background:var(--accent);margin-top:6px;flex:0 0 auto}
.bulletTitle{font-weight:800}
.bulletText{font-size:13px;color:var(--muted2);line-height:1.45;margin-top:2px}

.heroRight .formTitle{font-weight:900;font-size:18px;margin-bottom:6px}
.heroRight .formSub{font-size:13px;color:var(--muted2);margin-bottom:14px}

form{display:flex;flex-direction:column;gap:10px}
.row{display:grid;grid-template-columns:1fr 1fr;gap:10px}
@media (max-width:520px){.row{grid-template-columns:1fr}}

label span{display:block;font-size:12px;color:var(--muted2);margin:0 0 6px}

input,select{
  width:100%;
  padding:12px 12px;
  border-radius:12px;
  border:1px solid var(--border);
  background:#fff;
  color:var(--text);
  outline:none;
}
input::placeholder{color:#94a3b8}
input:focus, select:focus{border-color:#93c5fd; box-shadow:0 0 0 4px rgba(37,99,235,.12)}

button{
  width:100%;
  padding:12px 14px;
  border-radius:12px;
  border:1px solid rgba(37,99,235,.35);
  background: linear-gradient(180deg, rgba(37,99,235,.12), rgba(37,99,235,.08));
  color:var(--text);
  font-weight:900;
  cursor:pointer;
}
button:hover{border-color:rgba(37,99,235,.55); background: linear-gradient(180deg, rgba(37,99,235,.16), rgba(37,99,235,.10))}
button:disabled{opacity:.6;cursor:not-allowed}

.formMsg{font-size:13px;color:var(--muted);min-height:18px}
.formMsg.ok{color:#166534}
.formMsg.err{color:#b91c1c}

.finePrint{font-size:12px;color:var(--muted2);line-height:1.45;margin-top:2px}

.footer{padding:22px 0;color:var(--muted2);font-size:13px;display:flex;justify-content:space-between;gap:12px;flex-wrap:wrap}
.footerRight{display:flex;gap:10px;align-items:center}
.sep{opacity:.55}
.footerRight a:hover{text-decoration:underline}

/* === Conversion accent (single colour moment) === */
.buyBtn{
  color:#fff;
  border-color: rgba(37,99,235,.75);
  background: linear-gradient(135deg, var(--accent), #6366f1);
  box-shadow: 0 16px 30px rgba(37,99,235,.22);
}

.buyBtn:hover{
  border-color: rgba(37,99,235,.95);
  background: linear-gradient(135deg, var(--accent2), #4f46e5);
  box-shadow: 0 18px 34px rgba(37,99,235,.28);
}

/* Ownership line (quiet credibility) */
.ownerLine{
  margin: 10px 0 0;
  font-size: 13px;
  color: var(--muted2);
}

/* Optional: make the top-right CTA pill a touch stronger if you add it */
.pillStrong{
  color: var(--text);
  border-color: rgba(37,99,235,.35);
}

/* ============================= */
/* ✅ MOBILE HEADER FIX (NEW)    */
/* ============================= */
@media (max-width: 480px) {
  .nav{
    flex-wrap: wrap;
    row-gap: 10px;
  }

  .brand{
    width: 100%;
  }

  .brandText{
    flex-wrap: wrap;
  }

  .brandTag{
    margin-top: 6px;
    max-width: 100%;
  }

  .navLinks{
    width: 100%;
    justify-content: flex-end;
    gap: 8px;
  }

  .pill{
    white-space: normal;
  }
}
/* --- Preview block (Conversion Sprint P1 - collapsible) --- */
.previewBlock{
  margin-bottom:14px;
  padding:0; /* changed because summary will handle padding */
  border:1px solid var(--border);
  border-radius:18px;
  background: rgba(15, 23, 42, .03);
  overflow:hidden;
}

/* remove default marker triangle */
.previewDisclosure > summary{
  list-style:none;
}
.previewDisclosure > summary::-webkit-details-marker{
  display:none;
}

.previewSummary{
  cursor:pointer;
  padding:14px;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:12px;
  user-select:none;
}

.previewSummaryText{
  font-weight:800;
  font-size:14px;
  color: var(--text);
}

/* subtle hover */
.previewSummary:hover{
  background: rgba(15, 23, 42, .04);
}

/* chevron */
.previewChevron{
  width:10px;
  height:10px;
  border-right:2px solid var(--muted2);
  border-bottom:2px solid var(--muted2);
  transform: rotate(45deg);
  transition: transform .18s ease;
  flex: 0 0 auto;
}

/* rotate when open */
.previewDisclosure[open] .previewChevron{
  transform: rotate(-135deg);
}

/* inner content */
.previewInner{
  padding: 0 14px 14px 14px;
}

.previewSub{
  font-size:13px;
  color: var(--muted);
  margin: 2px 0 10px 0;
}

.previewToc{
  margin: 0;
  padding-left: 18px;
  color: var(--text);
  font-size:13px;
  line-height:1.5;
}
.previewToc li{ margin:2px 0; }

.previewNote{
  margin-top:10px;
  font-size:12px;
  color: var(--muted2);
}

/* nice focus ring for accessibility */
.previewSummary:focus{
  outline: none;
}
.previewDisclosure > summary:focus-visible{
  outline: 2px solid rgba(37,99,235,.35);
  outline-offset: -2px;
}