:root{
  --ink:#0f172a;          /* chữ chính */
  --muted:#5b6b7b;        /* chữ phụ */
  --line:#e7edf3;         /* viền */
  --paper:#ffffff;
  --soft:#f6f9ff;
  --brand:#2563eb;        /* sẽ bị ghi đè bằng script ở index (theo EIN) */
  --brand-ink:#1e40af;
  --sh:0 14px 28px rgba(15,23,42,.06);
  --r:18px;
}
*{box-sizing:border-box}
html,body{height:100%}
body{
  margin:0;
  font-family:Inter,system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",Arial,sans-serif;
  color:var(--ink);
  background:#f5f7fb;
  line-height:1.75;
}

/* NAV – mảnh, nổi */
.header{
  position:sticky;top:0;z-index:30;background:rgba(255,255,255,.85);
  backdrop-filter:saturate(180%) blur(10px);border-bottom:1px solid var(--line);
}
.c795291e7cc{
  width:min(1100px,94%);margin:0 auto;display:flex;align-items:center;gap:1rem;
  padding:.55rem 0;
}
.c795291e7cc img{width:150px;display:block}
.c795291e7cc .links{margin-left:auto;display:flex;gap:.25rem}
.c795291e7cc .links a{
  color:var(--ink);text-decoration:none;font-weight:600;padding:.45rem .8rem;border-radius:999px;
}
.c795291e7cc .links a:hover,.c795291e7cc .links a.active{background:rgba(37,99,235,.10)}

/* MASTHEAD (hero trung tâm) */
.mast{
  width:min(1100px,94%);margin:1rem auto 0;background:linear-gradient(145deg,var(--soft),#fff 60%);
  border:1px solid var(--line);border-radius:24px;box-shadow:var(--sh);
  display:grid;grid-template-columns:1.15fr .85fr;gap:1.2rem;padding:1.3rem 1.2rem;
}
.mast h1{font-size:clamp(1.9rem,3.2vw,2.7rem);margin:.2rem 0 .4rem}
.mast p{color:var(--muted)}
.cff3f044596{display:inline-block;background:rgba(37,99,235,.12);color:var(--brand-ink);padding:.22rem .6rem;border-radius:999px;font-weight:700;font-size:.7rem}

/* SECTION chung */
.section{width:min(1100px,94%);margin:1.05rem auto 0}
.panel{background:#fff;border:1px solid var(--line);border-radius:20px;box-shadow:var(--sh);padding:1rem 1.1rem}
h2{font-size:1.28rem;margin:.2rem 0 .6rem}
h3{margin:.2rem 0 .35rem;font-size:1.05rem}

/* Z-LAYOUT (media–text xen kẽ) */
.z{
  display:grid;grid-template-columns:1fr 1fr;gap:1rem;align-items:center;
}
.z.rev{grid-template-columns:1fr 1fr}
.img{border-radius:16px;overflow:hidden}
img{max-width:100%;display:block}

/* CARDS */
.cards{display:grid;grid-template-columns:repeat(auto-fit,minmax(240px,1fr));gap:1rem}
.c23cdcd4a9c{background:#fff;border:1px solid var(--line);border-radius:16px;padding:.85rem 1rem 1rem}

/* Milestones / stats */
.timeline{list-style:none;margin:.2rem 0 0;padding:0}
.timeline li{position:relative;padding-left:1.2rem;margin:.35rem 0}
.timeline li::before{content:"";position:absolute;left:.2rem;top:.6rem;width:.42rem;height:.42rem;border-radius:999px;background:var(--brand)}
.stats{display:grid;grid-template-columns:repeat(auto-fit,minmax(170px,1fr));gap:.8rem;margin-top:.5rem}
.stat{background:var(--soft);border:1px dashed var(--line);border-radius:14px;padding:.6rem .8rem}
.stat b{font-size:1.2rem}

/* FORM */
button,input,textarea{font:inherit}
.cd740fcdb32{display:grid;gap:12px;max-width:760px}
.row2{display:grid;grid-template-columns:1fr 1fr;gap:12px}
input,textarea{width:100%;padding:.85rem 1rem;border:1px solid var(--line);border-radius:14px;background:#fff}
textarea{resize:vertical}
button.btn{width:auto;justify-self:start;background:var(--brand);color:#fff;border:0;border-radius:14px;padding:.8rem 1.35rem;cursor:pointer}
button.btn:hover{background:var(--brand-ink)}

/* FOOTER đậm hơn, dễ đọc */
footer{width:min(1100px,94%);margin:1.2rem auto 1.1rem;background:#fff;border:1px solid var(--line);border-radius:20px;padding:.9rem 1.1rem}
.footer{display:grid;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:1rem}
.small{color:#0f172a;font-size:.82rem}
.small a{color:#0f172a;text-decoration:none}
.small a:hover{text-decoration:underline}

/* Responsive */
@media(max-width:960px){.mast{grid-template-columns:1fr}.z,.z.rev{grid-template-columns:1fr}}
@media(max-width:640px){.c795291e7cc{flex-wrap:wrap;justify-content:center}.row2{grid-template-columns:1fr}}