/* ============================================================
   ITPracticeHub — shared design system
   One stylesheet for the whole site. Edit colors in :root.
   ============================================================ */
:root{
  --ink:#0F1B2D;
  --ink-soft:#33445C;
  --muted:#6B7A90;
  --canvas:#EEF1F5;
  --canvas-deep:#DCE3EA;
  --card:#FFFFFF;
  --line:#D5DDE6;
  --accent:#0E9E96;
  --accent-deep:#0B7C74;
  --accent-wash:#E3F4F2;
  --correct:#15803D;
  --correct-wash:#E6F4EA;
  --wrong:#DC2626;
  --wrong-wash:#FCE9E9;
  --warn:#D9642F;
  --flag:#E0A020;
  --shadow:0 1px 2px rgba(15,27,45,.06),0 8px 24px rgba(15,27,45,.06);
  --shadow-lg:0 12px 40px rgba(15,27,45,.14);
  --r:14px;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;font-family:'Inter',system-ui,-apple-system,sans-serif;
  color:var(--ink);background:var(--canvas);line-height:1.6;
  -webkit-font-smoothing:antialiased;display:flex;flex-direction:column;min-height:100vh;
}
.mono{font-family:'JetBrains Mono',monospace}
a{color:var(--accent-deep)}
button{font-family:inherit;cursor:pointer;border:none;background:none}
img{max-width:100%}
.wrap{width:100%;max-width:1080px;margin:0 auto;padding:0 24px}
.hidden{display:none !important}

/* ---------- HEADER ---------- */
.site-head{
  position:sticky;top:0;z-index:50;background:rgba(255,255,255,.9);
  backdrop-filter:saturate(150%) blur(10px);border-bottom:1px solid var(--line);
}
.head-inner{display:flex;align-items:center;justify-content:space-between;height:64px}
.brand{display:flex;align-items:center;gap:10px;font-family:'Space Grotesk',sans-serif;font-weight:700;font-size:18px;color:var(--ink);text-decoration:none;letter-spacing:-.01em}
.brand .mark{
  width:32px;height:32px;border-radius:9px;flex:none;
  background:linear-gradient(145deg,var(--ink),var(--accent-deep));
  display:flex;align-items:center;justify-content:center;color:#fff;font-size:15px;
}
.nav{display:flex;align-items:center;gap:28px}
.nav a{color:var(--ink-soft);text-decoration:none;font-size:15px;font-weight:500;transition:.15s}
.nav a:hover{color:var(--accent-deep)}
.nav .cta{background:var(--accent-deep);color:#fff;padding:9px 18px;border-radius:9px}
.nav .cta:hover{background:#0a655e;color:#fff}
.burger{display:none;font-size:22px;color:var(--ink)}
@media(max-width:800px){
  .nav{position:fixed;inset:64px 0 auto 0;background:var(--card);flex-direction:column;
       gap:0;border-bottom:1px solid var(--line);padding:8px 0;box-shadow:var(--shadow);transform:translateY(-120%);transition:.25s;align-items:stretch}
  .nav.open{transform:translateY(0)}
  .nav a{padding:14px 24px}
  .nav .cta{margin:8px 24px;text-align:center}
  .burger{display:block}
}

/* ---------- FOOTER ---------- */
.site-foot{margin-top:auto;background:var(--ink);color:#AFC0D0}
.foot-inner{display:grid;grid-template-columns:1.4fr 1fr 1fr;gap:32px;padding:48px 0 32px}
.foot-brand .brand{color:#fff}
.foot-brand p{font-size:14px;max-width:36ch;margin:14px 0 0;color:#8FA1B3}
.foot-col h4{font-family:'Space Grotesk',sans-serif;color:#fff;font-size:14px;margin:0 0 14px;letter-spacing:.02em}
.foot-col a{display:block;color:#AFC0D0;text-decoration:none;font-size:14px;padding:5px 0;transition:.15s}
.foot-col a:hover{color:#7FE3D9}
.foot-bottom{border-top:1px solid rgba(255,255,255,.1);padding:20px 0;font-size:13px;color:#7A8C9E;text-align:center}
@media(max-width:700px){.foot-inner{grid-template-columns:1fr;gap:26px}}

/* ---------- BUTTONS ---------- */
.btn{display:inline-flex;align-items:center;gap:9px;font-family:'Space Grotesk',sans-serif;font-weight:600;
     font-size:16px;padding:14px 26px;border-radius:11px;text-decoration:none;transition:.15s}
.btn-primary{background:var(--accent-deep);color:#fff}
.btn-primary:hover{background:#0a655e;color:#fff;transform:translateY(-1px)}
.btn-ghost{background:var(--card);color:var(--ink);border:1.5px solid var(--line)}
.btn-ghost:hover{border-color:var(--ink-soft)}

/* ---------- SECTION / TYPO HELPERS ---------- */
.eyebrow{font-family:'JetBrains Mono',monospace;font-size:12px;letter-spacing:.18em;
         text-transform:uppercase;color:var(--accent-deep);margin:0 0 14px}
h1,h2,h3{font-family:'Space Grotesk',sans-serif;letter-spacing:-.02em;line-height:1.12}
.section{padding:72px 0}
.section h2{font-size:clamp(26px,4vw,34px);margin:0 0 12px}
.lead{font-size:17px;color:var(--muted);max-width:60ch}

/* ---------- CARDS ---------- */
.card{background:var(--card);border:1px solid var(--line);border-radius:var(--r);box-shadow:var(--shadow)}

/* ---------- AD SLOT (invisible until you paste an ad unit) ---------- */
.ad-slot{margin:26px auto;max-width:1080px;padding:0 24px;text-align:center}
.ad-slot:empty{display:none;margin:0;padding:0}

/* ---------- ARTICLE / LEGAL PAGES ---------- */
.doc{max-width:760px;margin:0 auto;padding:56px 24px 72px}
.doc h1{font-size:clamp(28px,5vw,40px);margin:0 0 8px}
.doc .updated{color:var(--muted);font-size:14px;margin:0 0 36px}
.doc h2{font-size:22px;margin:38px 0 12px}
.doc p,.doc li{color:var(--ink-soft);font-size:16px}
.doc ul{padding-left:22px}
.doc li{margin:6px 0}
.doc a{color:var(--accent-deep)}

@media(prefers-reduced-motion:reduce){*{animation:none!important;transition:none!important}}