/* tedkwartler.com - engineering-platform dark theme (#bada55 lime + magenta on black) */
:root {
  --bg: #08090b;
  --bg-2: #0d0f12;
  --panel: #101318;
  --panel-2: #151a21;
  --line: rgba(255,255,255,.08);
  --line-2: rgba(255,255,255,.15);
  --text: #eaeef2;
  --muted: #99a2b0;
  --dim: #6b7482;
  --lime: #bada55;
  --lime-2: #cde87a;
  --lime-soft: rgba(186,218,85,.13);
  --magenta: #ff2e9a;
  --magenta-2: #ff67b8;
  --magenta-soft: rgba(255,46,154,.13);
  --grad: linear-gradient(100deg, #bada55 0%, #8fe0a0 35%, #ff2e9a 100%);
  --grad-2: linear-gradient(120deg, #bada55, #ff2e9a);
  --radius: 16px;
  --maxw: 1140px;
  --font-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", Inter, Roboto, Helvetica, Arial, sans-serif;
  --font-mono: "SF Mono", ui-monospace, "JetBrains Mono", "Cascadia Code", Menlo, Consolas, monospace;
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  font-family: var(--font-sans);
  color: var(--text);
  background: var(--bg);
  line-height: 1.6;
  font-size: 17px;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}
/* Ambient background: grid + accent glows */
body::before {
  content: ""; position: fixed; inset: 0; z-index: -2; pointer-events: none;
  background-image:
    linear-gradient(to right, rgba(255,255,255,.03) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(255,255,255,.03) 1px, transparent 1px);
  background-size: 54px 54px;
  mask-image: radial-gradient(120% 80% at 50% 0%, #000 40%, transparent 100%);
  -webkit-mask-image: radial-gradient(120% 80% at 50% 0%, #000 40%, transparent 100%);
}
body::after {
  content: ""; position: fixed; inset: 0; z-index: -3; pointer-events: none;
  background:
    radial-gradient(46% 40% at 82% -6%, rgba(255,46,154,.16), transparent 70%),
    radial-gradient(46% 42% at 10% 4%, rgba(186,218,85,.14), transparent 70%),
    radial-gradient(60% 50% at 50% 108%, rgba(186,218,85,.06), transparent 70%);
}
h1,h2,h3,h4 { font-family: var(--font-sans); font-weight: 750; line-height: 1.08; letter-spacing: -.03em; margin: 0; }
a { color: var(--lime); text-decoration: none; }
a:hover { color: var(--lime-2); }
img { max-width: 100%; display: block; }
.wrap { max-width: var(--maxw); margin: 0 auto; padding: 0 24px; }

/* mono kicker */
.kicker {
  font-family: var(--font-mono); font-size: 12px; letter-spacing: .12em;
  text-transform: uppercase; color: var(--lime); margin: 0 0 18px;
  display: inline-flex; align-items: center; gap: 8px;
}
.kicker::before { content: "//"; color: var(--magenta); }
.grad { background: var(--grad); -webkit-background-clip: text; background-clip: text; color: transparent; }

/* Header */
header.site {
  position: sticky; top: 0; z-index: 50;
  background: rgba(8,9,11,.72); backdrop-filter: saturate(160%) blur(14px);
  border-bottom: 1px solid var(--line);
}
.nav { display: flex; align-items: center; justify-content: space-between; height: 68px; }
.brand { font-weight: 800; font-size: 19px; color: var(--text); letter-spacing: -.02em; display: flex; align-items: center; gap: 10px; }
.brand:hover { color: var(--text); }
.brand .glyph { font-family: var(--font-mono); color: var(--bg); background: var(--lime); width: 30px; height: 30px; border-radius: 8px; display: grid; place-items: center; font-weight: 700; font-size: 14px; box-shadow: 0 0 22px rgba(186,218,85,.5); }
.nav-links { display: flex; gap: 28px; align-items: center; }
.nav-links a { color: var(--muted); font-size: 14.5px; font-weight: 500; }
.nav-links a:hover { color: var(--text); }
.nav-cta {
  color: var(--bg) !important; background: var(--lime); padding: 9px 17px; border-radius: 999px;
  font-size: 14px; font-weight: 700; box-shadow: 0 0 0 1px rgba(186,218,85,.4), 0 8px 26px -8px rgba(186,218,85,.6);
}
.nav-cta:hover { background: var(--lime-2); }
.menu-btn { display: none; background: none; border: 0; color: var(--text); font-size: 24px; cursor: pointer; }
@media (max-width: 860px) {
  .nav-links { display: none; }
  .nav-links.open { display: flex; flex-direction: column; position: absolute; top: 68px; left: 0; right: 0; background: var(--bg-2); border-bottom: 1px solid var(--line); padding: 18px 24px; gap: 18px; }
  .menu-btn { display: block; }
}

/* Buttons */
.btn { display: inline-flex; align-items: center; gap: 8px; padding: 13px 22px; border-radius: 999px; font-weight: 700; font-size: 15px; border: 1px solid transparent; cursor: pointer; transition: transform .15s ease, box-shadow .2s ease, background .2s ease; }
.btn-primary { background: var(--lime); color: var(--bg); box-shadow: 0 0 0 1px rgba(186,218,85,.35), 0 10px 34px -10px rgba(186,218,85,.7); }
.btn-primary:hover { background: var(--lime-2); color: var(--bg); transform: translateY(-2px); }
.btn-ghost { background: rgba(255,255,255,.02); color: var(--text); border-color: var(--line-2); }
.btn-ghost:hover { border-color: var(--magenta); color: var(--text); box-shadow: 0 0 26px -6px rgba(255,46,154,.5); transform: translateY(-2px); }

/* Hero */
.hero { padding: 92px 0 70px; }
.hero-grid { display: grid; grid-template-columns: 1.15fr .85fr; gap: 48px; align-items: center; }
.hero h1 { font-size: clamp(2.6rem, 6.4vw, 4.6rem); margin: 0 0 20px; }
.hero .lead { font-size: clamp(1.08rem, 2.2vw, 1.3rem); color: var(--muted); max-width: 46ch; margin: 0 0 30px; }
.btn-row { display: flex; flex-wrap: wrap; gap: 14px; }
.hero-meta { margin-top: 30px; display: flex; flex-wrap: wrap; gap: 10px; }
.chip { font-family: var(--font-mono); font-size: 12px; color: var(--muted); border: 1px solid var(--line); background: rgba(255,255,255,.02); padding: 7px 12px; border-radius: 999px; }
.chip b { color: var(--lime); font-weight: 600; }

/* Terminal card */
.terminal { background: linear-gradient(180deg, var(--panel-2), var(--panel)); border: 1px solid var(--line-2); border-radius: 14px; overflow: hidden; box-shadow: 0 30px 80px -30px rgba(0,0,0,.9), 0 0 0 1px rgba(255,255,255,.02); }
.terminal .bar { display: flex; align-items: center; gap: 8px; padding: 13px 16px; border-bottom: 1px solid var(--line); background: rgba(255,255,255,.02); }
.terminal .bar span { width: 11px; height: 11px; border-radius: 50%; background: #3a3f47; }
.terminal .bar span.g { background: var(--lime); box-shadow: 0 0 12px rgba(186,218,85,.7); }
.terminal .bar .path { margin-left: 8px; font-family: var(--font-mono); font-size: 12px; color: var(--dim); }
.terminal pre { margin: 0; padding: 20px; font-family: var(--font-mono); font-size: 13.5px; line-height: 1.85; color: var(--text); overflow-x: auto; }
.terminal .c { color: var(--dim); }
.terminal .p { color: var(--magenta); }
.terminal .k { color: var(--lime); }
.terminal .s { color: var(--lime-2); }
.terminal .cursor { display: inline-block; width: 9px; height: 16px; background: var(--lime); vertical-align: -3px; box-shadow: 0 0 12px rgba(186,218,85,.8); animation: blink 1.1s steps(1) infinite; }
@keyframes blink { 50% { opacity: 0; } }
@media (max-width: 900px) { .hero-grid { grid-template-columns: 1fr; gap: 34px; } .terminal { order: 2; } }

/* Marquee logos */
.marquee { border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); padding: 22px 0; overflow: hidden; }
.marquee .row { display: flex; align-items: center; gap: 44px; white-space: nowrap; }
.marquee .lbl { font-family: var(--font-mono); font-size: 11px; letter-spacing: .16em; text-transform: uppercase; color: var(--dim); }
.marquee .items { display: flex; gap: 40px; }
.marquee .items span { color: var(--muted); font-weight: 700; font-size: 17px; letter-spacing: -.01em; }

/* Sections */
section { padding: 84px 0; position: relative; }
.section-head { max-width: 62ch; margin-bottom: 44px; }
.section-head h2 { font-size: clamp(1.9rem, 4vw, 2.9rem); margin: 0 0 14px; }
.section-head p { color: var(--muted); margin: 0; font-size: 1.08rem; }

/* Bento / cards */
.bento { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; }
.card { position: relative; background: linear-gradient(180deg, rgba(255,255,255,.03), rgba(255,255,255,.01)); border: 1px solid var(--line); border-radius: var(--radius); padding: 28px; overflow: hidden; transition: transform .18s ease, border-color .18s ease, box-shadow .25s ease; }
.card::before { content: ""; position: absolute; inset: 0; border-radius: inherit; padding: 1px; background: var(--grad-2); -webkit-mask: linear-gradient(#000 0 0) content-box, linear-gradient(#000 0 0); -webkit-mask-composite: xor; mask-composite: exclude; opacity: 0; transition: opacity .25s ease; }
.card:hover { transform: translateY(-4px); box-shadow: 0 24px 60px -30px rgba(255,46,154,.4); }
.card:hover::before { opacity: .8; }
.card .ico { width: 44px; height: 44px; border-radius: 12px; display: grid; place-items: center; font-size: 20px; margin-bottom: 16px; background: var(--lime-soft); border: 1px solid rgba(186,218,85,.3); }
.card h3 { font-size: 1.22rem; margin: 0 0 10px; }
.card p { margin: 0; color: var(--muted); font-size: 15px; }
@media (max-width: 860px) { .bento { grid-template-columns: 1fr; } }

/* Stats */
.stats { display: grid; grid-template-columns: repeat(4, 1fr); gap: 18px; }
.stat { border: 1px solid var(--line); border-radius: var(--radius); padding: 26px; background: rgba(255,255,255,.015); }
.stat .n { font-size: clamp(1.8rem, 4vw, 2.6rem); font-weight: 800; letter-spacing: -.03em; }
.stat .l { color: var(--muted); font-size: 14px; margin-top: 6px; }
@media (max-width: 760px) { .stats { grid-template-columns: repeat(2, 1fr); } }

/* Timeline */
.timeline { border-left: 1px solid var(--line-2); margin-left: 8px; padding-left: 30px; display: grid; gap: 30px; }
.tl-item { position: relative; }
.tl-item::before { content: ""; position: absolute; left: -39px; top: 5px; width: 12px; height: 12px; border-radius: 50%; background: var(--lime); box-shadow: 0 0 0 4px var(--bg), 0 0 16px rgba(186,218,85,.8); }
.tl-item .when { font-family: var(--font-mono); font-size: 12px; letter-spacing: .06em; color: var(--magenta); text-transform: uppercase; }
.tl-item h3 { margin: 6px 0 4px; font-size: 1.24rem; }
.tl-item .org { color: var(--lime); font-weight: 600; }
.tl-item p { margin: 8px 0 0; color: var(--muted); font-size: 15px; }

/* Books */
.books { display: grid; grid-template-columns: repeat(2, 1fr); gap: 18px; }
.book { display: flex; gap: 20px; background: rgba(255,255,255,.02); border: 1px solid var(--line); border-radius: var(--radius); padding: 22px; transition: border-color .2s ease, box-shadow .25s ease; }
.book:hover { border-color: var(--line-2); box-shadow: 0 20px 50px -30px rgba(186,218,85,.4); }
.book .spine { width: 76px; min-width: 76px; height: 110px; border-radius: 8px; display: grid; place-items: center; color: var(--bg); font-weight: 800; text-align: center; font-size: 12.5px; padding: 10px; line-height: 1.25; background: var(--grad-2); box-shadow: 0 12px 30px -12px rgba(255,46,154,.6); }
.book h3 { margin: 0 0 6px; font-size: 1.1rem; }
.book p { margin: 0 0 12px; color: var(--muted); font-size: 14px; }
.book a { font-weight: 700; font-size: 14px; }
@media (max-width: 720px) { .books { grid-template-columns: 1fr; } }

/* Teach */
.teach { display: grid; grid-template-columns: repeat(2, 1fr); gap: 18px; }
.teach .item { background: rgba(255,255,255,.02); border: 1px solid var(--line); border-radius: var(--radius); padding: 24px; }
.teach .item h3 { margin: 0 0 6px; font-size: 1.16rem; }
.teach .item .host { font-family: var(--font-mono); color: var(--lime); font-weight: 600; font-size: 13px; }
.teach .item p { color: var(--muted); font-size: 15px; margin: 10px 0 0; }
@media (max-width: 720px) { .teach { grid-template-columns: 1fr; } }

/* Feature (LLMBA) */
.feature { position: relative; border: 1px solid var(--line-2); border-radius: 22px; padding: 46px; overflow: hidden; background: radial-gradient(120% 140% at 100% 0%, rgba(255,46,154,.18), transparent 55%), radial-gradient(120% 140% at 0% 100%, rgba(186,218,85,.16), transparent 55%), var(--panel); }
.feature h2 { font-size: clamp(1.7rem, 3.6vw, 2.4rem); margin: 0 0 14px; max-width: 22ch; }
.feature p { color: var(--muted); max-width: 62ch; margin: 0 0 26px; }

/* Links */
.links { display: grid; grid-template-columns: repeat(2, 1fr); gap: 12px; }
.links a { display: flex; justify-content: space-between; align-items: center; gap: 14px; background: rgba(255,255,255,.02); border: 1px solid var(--line); border-radius: 12px; padding: 18px 20px; color: var(--text); font-weight: 600; transition: border-color .2s ease, color .2s ease; }
.links a:hover { border-color: var(--lime); color: var(--lime); }
.links a .arw { color: var(--dim); font-family: var(--font-mono); }
@media (max-width: 720px) { .links { grid-template-columns: 1fr; } }

/* Contact */
.contact-box { text-align: center; max-width: 60ch; margin: 0 auto; }
.socials { display: flex; justify-content: center; flex-wrap: wrap; gap: 12px; margin-top: 26px; }
.socials a { display: inline-flex; align-items: center; gap: 8px; padding: 11px 20px; border: 1px solid var(--line-2); border-radius: 999px; color: var(--text); font-weight: 600; font-size: 15px; font-family: var(--font-mono); }
.socials a:hover { border-color: var(--lime); color: var(--lime); box-shadow: 0 0 24px -8px rgba(186,218,85,.6); }

/* Footer */
footer.site { border-top: 1px solid var(--line); padding: 40px 0; color: var(--dim); font-size: 14px; }
footer.site .wrap { display: flex; justify-content: space-between; flex-wrap: wrap; gap: 16px; }
footer.site a { color: var(--muted); }
footer.site a:hover { color: var(--lime); }

@media (prefers-reduced-motion: reduce) { .cursor { animation: none; } * { scroll-behavior: auto; } }