/* ============================================================
   CHARTER BIOANALYTICS — Brand CSS
   Palette: ink #0E2538 · teal #0E8276 · verify-green #2D7A4F
            critical-red #B83A26 · caution-amber #B8860B · slate #5A6F82
============================================================ */
@import url('https://fonts.googleapis.com/css2?family=IBM+Plex+Sans:wght@400;500;600;700&family=IBM+Plex+Mono:wght@400;500;600;700&family=IBM+Plex+Serif:wght@400;500;600;700&display=swap');

:root {
  --ink:#0E2538; --teal:#0E8276; --deepteal:#094B45;
  --verify:#2D7A4F; --critical:#B83A26; --caution:#B8860B;
  --slate:#5A6F82; --hairline:#D9DEE6; --paper:#FFFFFF; --parchment:#FCFAF5;
  --tint-teal:#E8F2F0; --tint-verify:#EAF5EE; --tint-blue:#F1F5FA;
}
*,*::before,*::after { margin:0; padding:0; box-sizing:border-box; }
html { scroll-behavior:smooth; }
body { font-family:'IBM Plex Sans',sans-serif; color:var(--ink); background:#fff;
  -webkit-font-smoothing:antialiased; line-height:1.55; }

/* ============ NAV ============ */
.nav {
  position:sticky; top:0; z-index:100; background:#fff;
  border-bottom:1px solid var(--hairline); padding:14px 0;
}
.nav .container { display:flex; align-items:center; justify-content:space-between; gap:24px; }
.nav .brand { display:flex; align-items:center; gap:12px; text-decoration:none; color:var(--ink); }
.nav .brand svg { width:32px; height:32px; }
.nav .brand .name { font-weight:700; font-size:16px; letter-spacing:.04em; }
.nav .brand .name .sub { display:block; font-family:'IBM Plex Mono',monospace; font-weight:500;
  font-size:9px; letter-spacing:.22em; color:var(--teal); margin-top:1px; text-transform:uppercase; }
.nav .links { display:flex; gap:24px; align-items:center; }
.nav .links a { text-decoration:none; color:var(--ink); font-weight:500; font-size:14px;
  padding:6px 2px; border-bottom:2px solid transparent; transition:border-color .15s; }
.nav .links a:hover, .nav .links a.active { border-bottom-color:var(--teal); }
.nav .links a.cta { background:var(--ink); color:#fff; padding:9px 16px; border-radius:4px;
  border:0; font-weight:600; }
.nav .links a.cta:hover { background:var(--deepteal); }

/* ============ LAYOUT ============ */
.container { max-width:1180px; margin:0 auto; padding:0 24px; }
section { padding:64px 0; }
section.hero { padding:96px 0 80px; background:linear-gradient(180deg, #F7F9FB 0%, #fff 100%); }
section.alt { background:var(--parchment); }
h1 { font-family:'IBM Plex Serif',serif; font-weight:700; font-size:54px; line-height:1.08; letter-spacing:-.01em; color:var(--ink); }
h2 { font-family:'IBM Plex Serif',serif; font-weight:600; font-size:36px; line-height:1.15; letter-spacing:-.005em; color:var(--ink); margin-bottom:18px; }
h3 { font-weight:600; font-size:20px; color:var(--ink); margin-bottom:10px; }
h4 { font-weight:600; font-size:15px; color:var(--ink); margin-bottom:6px; letter-spacing:.02em; }
.eyebrow { font-family:'IBM Plex Mono',monospace; font-size:11px; font-weight:600; letter-spacing:.22em; text-transform:uppercase; color:var(--teal); margin-bottom:14px; }
.lead { font-size:19px; line-height:1.55; color:var(--slate); max-width:640px; margin-top:16px; }
p { color:var(--ink); margin-bottom:14px; max-width:680px; }
section p.center, section .lead.center { margin-left:auto; margin-right:auto; text-align:center; }
ul, ol { margin:0 0 14px 20px; }
li { margin-bottom:6px; }
.muted { color:var(--slate); }
a { color:var(--teal); text-decoration:none; }
a:hover { text-decoration:underline; }

/* ============ HERO ============ */
.hero .grid { display:grid; grid-template-columns:1.1fr .9fr; gap:60px; align-items:center; }
@media (max-width:880px) { .hero .grid { grid-template-columns:1fr; } }
.hero .actions { margin-top:30px; display:flex; gap:14px; flex-wrap:wrap; }

/* ============ BUTTONS ============ */
.btn {
  display:inline-block; padding:13px 24px; background:var(--ink); color:#fff;
  border:0; border-radius:4px; font-weight:600; font-size:14px; letter-spacing:.04em;
  text-decoration:none; cursor:pointer; transition:background .15s;
}
.btn:hover { background:var(--deepteal); text-decoration:none; color:#fff; }
.btn.secondary { background:transparent; color:var(--ink); border:1.5px solid var(--ink); }
.btn.secondary:hover { background:var(--ink); color:#fff; }
.btn.teal { background:var(--teal); }
.btn.teal:hover { background:var(--deepteal); }

/* ============ CARDS / GRIDS ============ */
.card-grid { display:grid; grid-template-columns:repeat(3, 1fr); gap:22px; margin-top:36px; }
@media (max-width:880px) { .card-grid { grid-template-columns:1fr; } }
.card {
  background:#fff; border:1px solid var(--hairline); border-radius:6px; padding:28px;
  transition:transform .15s, box-shadow .15s;
}
.card:hover { transform:translateY(-2px); box-shadow:0 8px 24px rgba(14,37,56,.08); }
.card .icon { width:42px; height:42px; background:var(--tint-teal); border-radius:6px; display:flex;
  align-items:center; justify-content:center; margin-bottom:18px; color:var(--teal); font-size:20px; font-weight:700; }
.card h3 { margin-bottom:8px; }
.card p { font-size:14px; color:var(--slate); margin-bottom:0; }

/* ============ STATS ROW ============ */
.stats { display:grid; grid-template-columns:repeat(4, 1fr); gap:32px; padding:42px 0;
  border-top:1px solid var(--hairline); border-bottom:1px solid var(--hairline); }
@media (max-width:880px) { .stats { grid-template-columns:repeat(2, 1fr); } }
.stat { text-align:center; }
.stat .value { font-family:'IBM Plex Serif',serif; font-weight:700; font-size:34px; color:var(--teal); line-height:1; }
.stat .label { font-family:'IBM Plex Mono',monospace; font-size:11px; letter-spacing:.18em; text-transform:uppercase; color:var(--slate); margin-top:6px; font-weight:600; }

/* ============ TABLES ============ */
table { width:100%; border-collapse:collapse; margin:18px 0 26px; }
table th, table td { text-align:left; padding:11px 14px; border-bottom:1px solid var(--hairline); font-size:14px; }
table th { background:var(--parchment); font-family:'IBM Plex Mono',monospace; font-size:11px; letter-spacing:.14em; text-transform:uppercase; color:var(--slate); font-weight:700; }
table td.mono { font-family:'IBM Plex Mono',monospace; }
table tr:last-child td { border-bottom:0; }

/* ============ FOOTER ============ */
footer { background:var(--ink); color:#A8B5C5; padding:56px 0 32px; margin-top:80px; }
footer .grid { display:grid; grid-template-columns:1.4fr repeat(3, 1fr); gap:42px; margin-bottom:36px; }
@media (max-width:880px) { footer .grid { grid-template-columns:1fr 1fr; } }
footer .brand { color:#fff; }
footer .brand .name { font-weight:700; font-size:16px; letter-spacing:.06em; color:#fff; }
footer .brand .name .sub { display:block; font-family:'IBM Plex Mono',monospace; font-weight:500; font-size:9px; letter-spacing:.22em; color:var(--teal); margin-top:2px; }
footer p { color:#A8B5C5; font-size:13px; max-width:none; margin-top:14px; line-height:1.55; }
footer h5 { color:#fff; font-size:12px; letter-spacing:.16em; text-transform:uppercase; font-weight:600; margin-bottom:18px; font-family:'IBM Plex Mono',monospace; }
footer ul { list-style:none; margin:0; }
footer ul li { margin-bottom:9px; }
footer a { color:#A8B5C5; text-decoration:none; font-size:13px; }
footer a:hover { color:#fff; }
footer .bottom { border-top:1px solid #1F3850; padding-top:24px; display:flex; justify-content:space-between; gap:16px; flex-wrap:wrap; font-size:12px; }

/* ============ VERIFY PAGE ============ */
.verify-card { max-width:580px; margin:30px auto; padding:38px; background:var(--parchment); border:1px solid var(--hairline); border-radius:8px; }
.verify-card label { display:block; font-family:'IBM Plex Mono',monospace; font-size:11px; letter-spacing:.16em; text-transform:uppercase; color:var(--slate); margin-bottom:8px; font-weight:700; }
.verify-card input { width:100%; padding:14px 16px; font-family:'IBM Plex Mono',monospace; font-size:16px; font-weight:600; border:1.5px solid var(--hairline); border-radius:5px; background:#fff; color:var(--ink); letter-spacing:.04em; }
.verify-card input:focus { outline:none; border-color:var(--teal); }
.verify-card button { width:100%; margin-top:14px; padding:15px; background:var(--ink); color:#fff; border:0; border-radius:5px; font-weight:700; font-size:14px; letter-spacing:.08em; text-transform:uppercase; cursor:pointer; }
.verify-card button:hover { background:var(--deepteal); }
.verify-card .help { margin-top:18px; font-size:13px; color:var(--slate); line-height:1.5; }
#verify-result { max-width:580px; margin:18px auto 0; }
.alert { padding:16px 20px; border-radius:5px; margin-bottom:12px; }
.alert.ok { background:var(--tint-verify); border-left:4px solid var(--verify); }
.alert.warn { background:#FBF3DC; border-left:4px solid var(--caution); }
.alert.err { background:#FBEEEA; border-left:4px solid var(--critical); }

/* ============ NEWS / POSTS ============ */
.post-list { display:grid; grid-template-columns:1fr; gap:32px; max-width:760px; margin-top:24px; }
.post-card { padding:24px; border:1px solid var(--hairline); border-radius:6px; background:#fff; }
.post-card .date { font-family:'IBM Plex Mono',monospace; font-size:11px; letter-spacing:.14em; color:var(--slate); font-weight:600; text-transform:uppercase; }
.post-card h3 { margin-top:8px; font-size:22px; }
.post-card p { font-size:14px; color:var(--slate); margin-bottom:0; }
.post-card a.more { display:inline-block; margin-top:10px; font-weight:600; font-size:13px; }

/* ============ MISC ============ */
.divider { width:60px; height:2px; background:var(--teal); margin:0 0 20px; }
.pill { display:inline-block; padding:3px 9px; border-radius:99px; font-family:'IBM Plex Mono',monospace; font-size:10px; font-weight:700; letter-spacing:.14em; text-transform:uppercase; background:var(--tint-teal); color:var(--deepteal); }
.pill.live { background:var(--tint-verify); color:var(--verify); }