/* David W. Sherrer II — personal site */
:root{
  --bg:#0E1A2B;
  --bg-elev:#142336;
  --bg-elev-2:#1A2C42;
  --rule:#23354F;
  --ink:#F4F2EC;
  --ink-mid:#C8CFDA;
  --ink-dim:#8A95A6;
  --accent:#F0A030;
  --accent-dim:#B87820;
  --sans:'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', system-ui, sans-serif;
  --display:'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', system-ui, sans-serif;
}

*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{
  background:var(--bg);
  color:var(--ink);
  font-family:var(--sans);
  font-size:16px;
  line-height:1.6;
  -webkit-font-smoothing:antialiased;
  -moz-osx-font-smoothing:grayscale;
  text-rendering:optimizeLegibility;
}
a{color:var(--accent);text-decoration:none;transition:color .15s ease, opacity .15s ease}
a:hover{color:#FFB650}
a:focus-visible{outline:2px solid var(--accent);outline-offset:3px;border-radius:2px}
img{max-width:100%;display:block}

.container{max-width:1100px;margin:0 auto;padding:0 24px}
.narrow{max-width:760px;margin:0 auto;padding:0 24px}

/* ---------- NAV ---------- */
.site-header{
  position:sticky;top:0;z-index:30;
  background:rgba(14,26,43,.85);
  backdrop-filter:blur(10px);
  -webkit-backdrop-filter:blur(10px);
  border-bottom:1px solid var(--rule);
}
.site-header .container{
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding-top:18px;padding-bottom:18px;
}
.brand{
  display:flex;align-items:center;gap:10px;
  font-family:var(--display);font-weight:600;font-size:15px;letter-spacing:.01em;
  color:var(--ink);white-space:nowrap;
}
.brand:hover{color:var(--ink)}
.brand-mark{
  width:28px;height:28px;display:inline-flex;align-items:center;justify-content:center;
  border:1px solid var(--accent);border-radius:4px;color:var(--accent);
  font-weight:600;font-size:12px;letter-spacing:.04em;
}
.nav-links{display:flex;gap:28px;font-size:14px}
.nav-links a{color:var(--ink-mid);font-weight:500}
.nav-links a:hover{color:var(--ink)}
.nav-links a.active{color:var(--accent)}

/* ---------- HERO ---------- */
.hero{
  padding:clamp(72px, 10vw, 140px) 0 clamp(56px, 7vw, 96px);
  position:relative;overflow:hidden;
}
.hero::before{
  content:"";position:absolute;inset:0;pointer-events:none;
  background:
    radial-gradient(800px 360px at 80% -10%, rgba(240,160,48,.10), transparent 60%),
    radial-gradient(600px 300px at 0% 100%, rgba(240,160,48,.05), transparent 60%);
}
.hero .container{position:relative}
.eyebrow{
  display:inline-block;
  font-size:12px;letter-spacing:.18em;text-transform:uppercase;
  color:var(--accent);font-weight:600;margin-bottom:24px;
}
.hero h1{
  font-family:var(--display);
  font-size:clamp(36px, 5.6vw, 64px);
  line-height:1.05;
  font-weight:700;
  letter-spacing:-.02em;
  margin-bottom:24px;
  max-width:18ch;
}
.hero .lede{
  font-size:clamp(17px, 1.6vw, 20px);
  line-height:1.55;
  color:var(--ink-mid);
  max-width:62ch;
  margin-bottom:36px;
}
.hero .meta{
  display:flex;flex-wrap:wrap;gap:24px 36px;
  font-size:14px;color:var(--ink-dim);
  padding-top:28px;border-top:1px solid var(--rule);
}
.hero .meta strong{color:var(--ink);font-weight:500;display:block;font-size:11px;letter-spacing:.14em;text-transform:uppercase;color:var(--accent);margin-bottom:4px}
.hero .meta span{display:block}
.hero .meta-item{min-width:160px}

/* ---------- SECTIONS ---------- */
section{padding:clamp(64px, 7vw, 104px) 0;border-top:1px solid var(--rule)}
section .section-eyebrow{
  font-size:12px;letter-spacing:.18em;text-transform:uppercase;
  color:var(--accent);font-weight:600;margin-bottom:14px;
}
section h2{
  font-family:var(--display);
  font-size:clamp(26px, 3.2vw, 36px);
  font-weight:700;letter-spacing:-.01em;line-height:1.15;
  margin-bottom:20px;
}
section .section-lede{
  color:var(--ink-mid);font-size:17px;line-height:1.65;
  max-width:62ch;margin-bottom:48px;
}

/* ---------- CARD GRID (current focus) ---------- */
.card-grid{
  display:grid;
  grid-template-columns:repeat(auto-fit,minmax(280px,1fr));
  gap:20px;
}
.card{
  background:var(--bg-elev);
  border:1px solid var(--rule);
  border-radius:10px;
  padding:32px 28px;
  transition:border-color .2s ease, transform .2s ease, background .2s ease;
  display:flex;flex-direction:column;
}
.card:hover{border-color:var(--accent-dim);background:var(--bg-elev-2)}
.card .role{
  font-size:11px;letter-spacing:.16em;text-transform:uppercase;
  color:var(--accent);font-weight:600;margin-bottom:14px;
}
.card h3{
  font-family:var(--display);font-weight:700;
  font-size:22px;letter-spacing:-.01em;margin-bottom:10px;
}
.card p{color:var(--ink-mid);font-size:15px;line-height:1.6;margin-bottom:18px;flex:1}
.card .card-link{
  font-size:13px;font-weight:600;letter-spacing:.02em;
  color:var(--accent);
}
.card .card-link::after{content:" →";transition:margin .15s ease;display:inline-block}
.card:hover .card-link::after{margin-left:4px}
.card .muted{color:var(--ink-dim);font-size:13px}

/* ---------- ARTICLE / PROSE ---------- */
.page-header{padding:clamp(72px, 9vw, 120px) 0 clamp(40px, 5vw, 64px)}
.page-header h1{
  font-family:var(--display);
  font-size:clamp(34px, 5vw, 56px);
  line-height:1.05;letter-spacing:-.02em;font-weight:700;
  margin-bottom:20px;
}
.page-header .lede{
  color:var(--ink-mid);font-size:clamp(17px, 1.5vw, 19px);
  line-height:1.6;max-width:62ch;
}

.prose{font-size:17px;line-height:1.72;color:var(--ink-mid)}
.prose p{margin-bottom:1.2em;max-width:65ch}
.prose p strong{color:var(--ink);font-weight:600}
.prose h3{
  font-family:var(--display);color:var(--ink);font-weight:700;
  font-size:21px;letter-spacing:-.01em;margin:2.2em 0 .6em;
}
.prose h3:first-child{margin-top:0}
.prose ul{margin:0 0 1.4em 1.2em;padding:0}
.prose li{margin-bottom:.5em;max-width:62ch}

/* ---------- TIMELINE ---------- */
.timeline{
  margin-top:8px;border-left:1px solid var(--rule);
  padding-left:28px;
}
.tl-item{position:relative;padding:6px 0 28px}
.tl-item::before{
  content:"";position:absolute;left:-33px;top:14px;
  width:9px;height:9px;border-radius:50%;
  background:var(--accent);box-shadow:0 0 0 3px var(--bg);
}
.tl-when{
  font-size:12px;letter-spacing:.12em;text-transform:uppercase;
  color:var(--accent);font-weight:600;margin-bottom:6px;
}
.tl-what{
  font-family:var(--display);font-weight:700;
  font-size:19px;letter-spacing:-.005em;color:var(--ink);margin-bottom:4px;
}
.tl-where{font-size:13px;color:var(--ink-dim);margin-bottom:10px}
.tl-body{color:var(--ink-mid);font-size:15px;line-height:1.65;max-width:62ch}

/* ---------- STATS ---------- */
.stats{
  display:grid;grid-template-columns:repeat(auto-fit,minmax(160px,1fr));
  gap:24px;margin:8px 0 0;
}
.stat .n{
  font-family:var(--display);font-weight:700;
  font-size:clamp(40px, 5vw, 56px);line-height:1;
  color:var(--accent);letter-spacing:-.02em;
}
.stat .l{margin-top:10px;font-size:13px;color:var(--ink-dim);letter-spacing:.02em}

/* ---------- CONTACT CARDS ---------- */
.contact-grid{
  display:grid;grid-template-columns:repeat(auto-fit,minmax(240px,1fr));
  gap:18px;margin-top:8px;
}
.contact-card{
  padding:26px 24px;
  background:var(--bg-elev);
  border:1px solid var(--rule);
  border-radius:10px;
  transition:border-color .2s ease;
}
.contact-card:hover{border-color:var(--accent-dim)}
.contact-card .label{
  font-size:11px;letter-spacing:.16em;text-transform:uppercase;
  color:var(--accent);font-weight:600;margin-bottom:10px;
}
.contact-card .value{font-size:17px;color:var(--ink);font-weight:500;word-break:break-word}
.contact-card .value a{color:var(--ink)}
.contact-card .value a:hover{color:var(--accent)}
.contact-card .sub{color:var(--ink-dim);font-size:13px;margin-top:6px}

/* ---------- BUTTONS ---------- */
.btn{
  display:inline-flex;align-items:center;gap:8px;
  padding:13px 22px;border-radius:6px;
  font-size:14px;font-weight:600;letter-spacing:.01em;
  border:1px solid var(--accent);background:transparent;color:var(--accent);
  transition:background .15s ease, color .15s ease;
}
.btn:hover{background:var(--accent);color:#1A1208}
.btn-primary{background:var(--accent);color:#1A1208}
.btn-primary:hover{background:#FFB650;color:#1A1208}

/* ---------- FOOTER ---------- */
.site-footer{
  padding:36px 0;
  border-top:1px solid var(--rule);
  font-size:13px;color:var(--ink-dim);
  margin-top:0;
}
.site-footer .container{
  display:flex;flex-wrap:wrap;justify-content:space-between;gap:14px;
}
.site-footer a{color:var(--ink-dim)}
.site-footer a:hover{color:var(--ink)}

/* ---------- MOBILE ---------- */
@media (max-width:640px){
  .nav-links{gap:18px;font-size:13px}
  .hero .meta-item{min-width:140px}
  .timeline{padding-left:22px}
  .tl-item::before{left:-27px}
  .card{padding:26px 22px}
}

@media (max-width:480px){
  .site-header .container{padding-top:14px;padding-bottom:14px}
  .nav-links{gap:12px;font-size:12px}
  .brand{font-size:13px;gap:8px}
  .brand-mark{width:24px;height:24px;font-size:10px}
}
@media (max-width:380px){
  .brand span:last-child{display:none}
}

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