:root{
  --bg:#0A0A0A;        /* page background */
  --content:#111216;   /* hero panel */
  --navy:#2E3540;      /* header/nav bar */
  --text:#F2F4F8;      /* main text on dark */
  --muted:#C6CEDA;
  --brand:#1F6FEB;     /* accent blue */
  --card:#1B1E24;
  --border:#303746;
  --ring:#99C2FF;
  --max:1100px;
}

/* base */
*{box-sizing:border-box}
html{font-size:100%}
body{margin:0;font-family:system-ui,-apple-system,"Segoe UI",Roboto,Arial,sans-serif;color:var(--text);background:var(--bg);line-height:1.6}
img{max-width:100%;height:auto;display:block}
.container{max-width:var(--max);margin-inline:auto;padding:1rem}

/* header */
.site-header{background:var(--navy);color:#fff}
.header-top{display:flex;align-items:center;justify-content:space-between;gap:1rem;flex-wrap:wrap}
.brand{text-decoration:none;color:#fff}
.site-name{font-weight:800;letter-spacing:.04em}

/* nav */
.primary-nav{border-top:1px solid rgba(255,255,255,.08)}
.primary-nav ul{list-style:none;margin:0;padding:.25rem 0;display:flex;gap:1rem;flex-wrap:wrap}
.primary-nav a{text-decoration:none;color:#fff;opacity:.9}
.primary-nav a[aria-current="page"]{color:var(--brand);font-weight:600;opacity:1}
.primary-nav a:hover,.primary-nav a:focus{outline:2px solid var(--ring);outline-offset:2px}

/* search pill (simple) */
.search-pill{display:flex;align-items:center;gap:.5rem;background:#2B3038;border:1px solid #414856;border-radius:28px;padding:.35rem .5rem;min-width:320px}
.icon-btn{background:transparent;border:0;color:#C8D0DC;font-weight:700;width:34px;height:34px;border-radius:50%}
.icon-btn:hover,.icon-btn:focus{outline:2px solid var(--ring);outline-offset:2px}
.search-input{flex:1;min-width:140px;background:#1E222B;border:0;color:#E7ECF5;padding:.55rem .75rem;border-radius:20px}

/* hero */
.hero-dark{background:var(--content);padding:2rem 0}
.grid-2{display:grid;gap:2rem;grid-template-columns:repeat(2,minmax(0,1fr))}
@media (max-width:900px){.grid-2{grid-template-columns:1fr}}
.hero-copy p{max-width:65ch}
.btn{display:inline-block;background:var(--brand);color:#fff;padding:.7rem 1rem;border-radius:.5rem;text-decoration:none;font-weight:700}
.btn:hover,.btn:focus{outline:3px solid var(--ring);outline-offset:2px}
.hero-figure img{border-radius:8px;border:1px solid var(--border)}

/* cards and extra grids for the WebDev page */
.card{background:var(--card);border:1px solid var(--border);border-radius:10px;padding:1rem}
.grid-3{display:grid;gap:1rem;grid-template-columns:repeat(3,minmax(0,1fr))}
@media (max-width:900px){.grid-3{grid-template-columns:1fr}}
.figure{margin:1rem 0}
.small{font-size:.875rem;color:var(--muted)}

/* social row */
.social-row{padding-block:1rem;border-top:1px solid #1f232b}
.social-list{display:flex;gap:14px;list-style:none;margin:0;padding:0}
.social-list a{text-decoration:none;color:#E7ECF5}
.social-list a:hover,.social-list a:focus{color:#fff;outline:2px solid var(--ring);outline-offset:2px}

/* footer */
.site-footer{background:var(--navy);color:#fff;margin-top:2rem;padding-block:1rem}
.footer-inner{display:flex;align-items:center;justify-content:space-between;gap:1rem;flex-wrap:wrap}

/* type scale */
h1{font-size:clamp(1.6rem,2.6vw,2.3rem);margin:.25rem 0 .75rem}
h2{font-size:clamp(1.25rem,2.2vw,1.6rem);margin:1.25rem 0 .5rem}
h3{font-size:1.15rem;margin:1rem 0 .25rem}
h4{font-size:1rem;margin:.75rem 0 .25rem}
.lead{color:var(--muted);font-size:1.05rem}
p{margin:.5rem 0}

/* accessibility helpers */
.skip-link{position:absolute;left:-9999px}
.skip-link:focus{left:1rem;top:1rem;background:#fff;color:#000;padding:.5rem 1rem;outline:2px solid var(--brand)}
.visually-hidden{position:absolute!important;height:1px;width:1px;overflow:hidden;clip:rect(1px,1px,1px,1px);white-space:nowrap;border:0;padding:0;margin:-1px}