/* ==========================================================================
   AVARO LABS — Design System v2 "Clinical Premium"
   Target buyer: CTOs, engineers, agency leads. Conversion logic:
   dark authority hero → clean data surface → high-contrast tables → verdict.
   Fonts: Inter (text) + JetBrains Mono (data). One CSS file, no JS.
   ========================================================================== */
:root{
  /* Ink & surfaces */
  --ink:#0b1220;--ink-2:#3f4a5f;--ink-3:#697488;
  --bg:#f7f8fa;--surface:#ffffff;--line:#e5e9f0;--line-2:#d4dae4;
  /* Dark band (hero, table heads, footer) */
  --navy:#0a0f1e;--navy-2:#111a30;--navy-line:#232f4b;--navy-txt:#c4cce0;
  /* Accent system */
  --accent:#3b82f6;--accent-deep:#1d4ed8;--glow:#6366f1;
  --win:#059669;--win-bg:#ecfdf5;--win-line:#a7f3d0;
  --flag:#b45309;--flag-bg:#fffbeb;--flag-line:#fde68a;
  --sans:'Inter',system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;
  --mono:'JetBrains Mono',ui-monospace,SFMono-Regular,Menlo,monospace;
  --shadow:0 1px 2px rgba(11,18,32,.05),0 8px 24px -12px rgba(11,18,32,.12);
  --shadow-lift:0 2px 4px rgba(11,18,32,.06),0 16px 40px -12px rgba(29,78,216,.18);
}
*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{margin:0;background:var(--bg);color:var(--ink);
  font:16px/1.68 var(--sans);font-optical-sizing:auto;
  -webkit-font-smoothing:antialiased;text-rendering:optimizeLegibility}
a{color:var(--accent-deep);text-decoration:none}
a:hover{text-decoration:underline;text-underline-offset:3px}
.container{max-width:960px;margin:0 auto;padding:0 24px}

/* --------------------------------------------------------------- Header */
.site-header{position:sticky;top:0;z-index:20;
  background:rgba(10,15,30,.88);backdrop-filter:blur(12px);
  -webkit-backdrop-filter:blur(12px);border-bottom:1px solid var(--navy-line)}
.site-header .container{display:flex;align-items:center;gap:28px;height:60px}
.brand{font-weight:800;font-size:17px;letter-spacing:-.03em;color:#fff}
.brand:hover{text-decoration:none}
.brand .dot{background:linear-gradient(135deg,var(--accent),var(--glow));
  -webkit-background-clip:text;background-clip:text;color:transparent}
.nav{display:flex;gap:22px;margin-left:auto;font-size:14px;font-weight:500}
.nav a{color:var(--navy-txt)}
.nav a:hover{color:#fff;text-decoration:none}
.nav a[aria-current="page"]{color:#fff;font-weight:600}

/* ----------------------------------------------------------------- Hero */
.hero{position:relative;overflow:hidden;background:var(--navy);color:#fff;
  padding:72px 0 56px;border-bottom:1px solid var(--line-2)}
.hero::before{content:"";position:absolute;inset:0;pointer-events:none;
  background:
    radial-gradient(600px 300px at 80% -10%,rgba(99,102,241,.28),transparent 65%),
    radial-gradient(500px 260px at 10% 110%,rgba(59,130,246,.18),transparent 60%)}
.hero::after{content:"";position:absolute;inset:0;pointer-events:none;opacity:.5;
  background-image:linear-gradient(rgba(196,204,224,.06) 1px,transparent 1px),
    linear-gradient(90deg,rgba(196,204,224,.06) 1px,transparent 1px);
  background-size:44px 44px}
.hero .container{position:relative;z-index:1}
.kicker{font:600 12px/1 var(--mono);letter-spacing:.14em;text-transform:uppercase;
  color:#8ea4ff;display:inline-flex;align-items:center;gap:8px;margin-bottom:18px}
.kicker::before{content:"";width:24px;height:1px;background:#8ea4ff}
h1{font-size:clamp(30px,5vw,44px);line-height:1.12;letter-spacing:-.035em;
  font-weight:800;margin:0 0 16px;max-width:20ch}
.hero h1{color:#fff}
.lead{font-size:18px;line-height:1.6;color:var(--navy-txt);max-width:64ch;margin:0}
.lead a{color:#a5b8ff}
.meta-row{display:flex;flex-wrap:wrap;gap:10px;margin-top:26px}
.meta-row span{font:500 12.5px/1 var(--mono);color:var(--navy-txt);
  border:1px solid var(--navy-line);background:rgba(255,255,255,.03);
  border-radius:100px;padding:8px 14px}

/* -------------------------------------------------------------- Article */
main{padding:48px 0 72px}
article{max-width:78ch}
h2{font-size:24px;font-weight:750;letter-spacing:-.02em;margin:52px 0 14px}
h2:first-child{margin-top:0}
h2 .num{font:700 13px/1 var(--mono);color:var(--accent-deep);
  vertical-align:.45em;margin-right:10px;letter-spacing:.06em}
h3{font-size:17px;font-weight:650;margin:30px 0 8px;letter-spacing:-.01em}
p{margin:0 0 15px;color:var(--ink-2)}
p strong,li strong{color:var(--ink)}
ul{padding-left:22px;margin:0 0 16px;color:var(--ink-2)}
li{margin-bottom:7px}
li::marker{color:var(--accent)}

/* ------------------------------------------------- Tables (conversion core) */
.tablewrap{overflow-x:auto;margin:20px 0 26px;border:1px solid var(--line-2);
  border-radius:12px;background:var(--surface);box-shadow:var(--shadow)}
table{border-collapse:collapse;width:100%;font-size:14.5px}
th{background:var(--navy);color:#eef1f8;text-align:left;padding:12px 16px;
  font:600 12px/1.5 var(--mono);letter-spacing:.05em;text-transform:uppercase;
  white-space:nowrap;border-bottom:2px solid var(--accent)}
td{padding:12px 16px;border-top:1px solid var(--line);vertical-align:top;
  color:var(--ink-2)}
td:first-child{color:var(--ink);font-weight:600}
tbody tr:nth-child(even){background:#f3f6fa}
tbody tr:hover{background:#eaf1fc}
.win{color:var(--win);font:700 12.5px/1.5 var(--mono);background:var(--win-bg);
  border:1px solid var(--win-line);border-radius:6px;padding:3px 9px;white-space:nowrap}

/* ------------------------------------------------------ Semantic blocks */
.verdict{background:var(--win-bg);border:1px solid var(--win-line);
  border-left:4px solid var(--win);border-radius:10px;padding:16px 20px;margin:20px 0}
.verdict p{margin:0;color:var(--ink)}
.check{background:var(--flag-bg);border:1px solid var(--flag-line);
  border-left:4px solid var(--flag);border-radius:10px;padding:12px 18px;
  margin:16px 0;font-size:14.5px;color:var(--ink-2)}
.datapoint{font:600 13px/1.5 var(--mono);background:#edf1f7;color:var(--ink);
  border:1px solid var(--line-2);border-radius:6px;padding:1px 7px;white-space:nowrap}

/* ------------------------------------------------------------ Index cards */
.grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(280px,1fr));
  gap:18px;margin:24px 0}
.card{background:var(--surface);border:1px solid var(--line-2);border-radius:12px;
  padding:22px 24px;display:block;color:var(--ink);box-shadow:var(--shadow);
  transition:transform .15s ease,box-shadow .15s ease,border-color .15s ease}
.card:hover{text-decoration:none;transform:translateY(-2px);
  border-color:var(--accent);box-shadow:var(--shadow-lift)}
.card h3{margin:0 0 8px;font-size:17px;color:var(--ink)}
.card p{margin:0;font-size:14px;color:var(--ink-3)}
.card .tag{font:600 11px/1 var(--mono);text-transform:uppercase;
  letter-spacing:.08em;color:var(--accent-deep);display:block;margin-bottom:10px}
.card .go{display:inline-block;margin-top:14px;font:600 13px/1 var(--sans);
  color:var(--accent-deep)}
.card:hover .go{text-decoration:underline;text-underline-offset:3px}

/* --------------------------------------- "Official document" (methodology) */
.doc{background:var(--surface);border:1px solid var(--line-2);border-radius:14px;
  box-shadow:var(--shadow);padding:44px 48px;position:relative}
.doc::before{content:"";position:absolute;top:0;left:0;right:0;height:4px;
  border-radius:14px 14px 0 0;
  background:linear-gradient(90deg,var(--accent),var(--glow))}
.doc-meta{display:grid;grid-template-columns:repeat(auto-fit,minmax(150px,1fr));
  gap:14px;border:1px solid var(--line);border-radius:10px;background:#f6f8fb;
  padding:16px 20px;margin:0 0 34px}
.doc-meta div{font-size:13.5px;color:var(--ink-2)}
.doc-meta b{display:block;font:600 10.5px/2 var(--mono);letter-spacing:.1em;
  text-transform:uppercase;color:var(--ink-3)}
.doc h2{border-top:1px solid var(--line);padding-top:26px}
.doc h2:first-of-type{border-top:0;padding-top:0}
.doc-sign{margin-top:40px;padding-top:18px;border-top:1px dashed var(--line-2);
  font:500 13px/1.7 var(--mono);color:var(--ink-3)}
@media(max-width:640px){.doc{padding:28px 22px}}

/* --------------------------------------------------------------- Footer */
.site-footer{background:var(--navy);color:var(--navy-txt);
  padding:36px 0;font-size:13.5px;line-height:1.7}
.site-footer p{margin:0 0 7px;color:var(--navy-txt)}
.site-footer strong{color:#fff}
.site-footer a{color:#a5b8ff}

@media(max-width:640px){
  .site-header .container{height:auto;flex-wrap:wrap;padding:12px 24px}
  .nav{width:100%;margin-left:0;gap:16px}
  .hero{padding:52px 0 40px}
}