/* robfalconer.com — dark, colourful, glassy. No external fonts or scripts. */
:root{
  --bg:#0b0a1f; --bg2:#120f2e; --ink:#eef0ff; --muted:#b4b8d8; --line:rgba(255,255,255,.12);
  --pink:#ff4fa3; --violet:#8b5cff; --cyan:#22d3ee; --lime:#a3e635; --amber:#fbbf24; --orange:#fb7185;
  --glass:rgba(255,255,255,.06); --glass2:rgba(255,255,255,.10);
  --g1:linear-gradient(120deg,var(--pink),var(--violet) 45%,var(--cyan));
  --g2:linear-gradient(120deg,var(--amber),var(--pink) 50%,var(--violet));
  --g3:linear-gradient(120deg,var(--cyan),var(--lime));
  --radius:18px; --maxw:1140px;
  --font:system-ui,-apple-system,"Segoe UI",Roboto,"Helvetica Neue",Arial,sans-serif;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{margin:0;background:var(--bg);color:var(--ink);font:16px/1.7 var(--font);min-height:100vh;overflow-x:hidden}
a{color:#9fe8ff;text-underline-offset:3px}
a:hover{color:#fff}
img,svg{max-width:100%;height:auto}
h1,h2,h3{line-height:1.25;margin:1.6em 0 .5em;letter-spacing:-.01em}
h1{font-size:clamp(30px,5.2vw,56px);margin-top:.3em;font-weight:800;letter-spacing:-.03em}
h2{font-size:19px;font-weight:750}
h3{font-size:16px;font-weight:700}
p{margin:0 0 1em}
.small{font-size:14px;color:var(--muted)}
.wrap{width:min(var(--maxw),100% - 32px);margin-inline:auto}
.skip{position:absolute;left:-999px;top:8px;background:#fff;color:#000;padding:8px 12px;border-radius:8px;z-index:99}
.skip:focus{left:8px}
:focus-visible{outline:2px solid var(--cyan);outline-offset:3px;border-radius:6px}

/* animated background */
.bg{position:fixed;inset:0;z-index:-1;overflow:hidden;background:radial-gradient(1200px 700px at 80% -10%,#2a1660 0%,transparent 60%),radial-gradient(900px 600px at -10% 30%,#06324a 0%,transparent 60%),var(--bg)}
.blob{position:absolute;border-radius:50%;filter:blur(70px);opacity:.45;animation:float 22s ease-in-out infinite alternate}
.b1{width:420px;height:420px;background:var(--pink);top:-120px;right:8%}
.b2{width:380px;height:380px;background:var(--cyan);bottom:-140px;left:-60px;animation-delay:-7s}
.b3{width:300px;height:300px;background:var(--violet);top:40%;left:55%;animation-delay:-13s;opacity:.35}
.grid{position:absolute;inset:0;background-image:linear-gradient(var(--line) 1px,transparent 1px),linear-gradient(90deg,var(--line) 1px,transparent 1px);background-size:56px 56px;mask-image:radial-gradient(ellipse at 50% 0%,#000 0%,transparent 70%);opacity:.25}
@keyframes float{to{transform:translate3d(-60px,50px,0) scale(1.12)}}
@media (prefers-reduced-motion:reduce){.blob,.orbit *{animation:none!important}html{scroll-behavior:auto}}

/* header */
.site-head{position:sticky;top:0;z-index:20;background:rgba(11,10,31,.72);backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);border-bottom:1px solid var(--line)}
.head-in{display:flex;align-items:center;gap:20px;min-height:66px}
.brand{display:flex;align-items:center;gap:10px;color:var(--ink);text-decoration:none;font-weight:800;flex-shrink:0}
.brand-txt{display:flex;flex-direction:column;line-height:1.1}
.brand-txt small{font-weight:500;color:var(--muted);font-size:12px}
.logo{display:grid;place-items:center;width:38px;height:38px;border-radius:12px;background:var(--g1);color:#fff;font-size:15px;box-shadow:0 6px 24px rgba(139,92,255,.45)}
.main-nav{display:flex;gap:4px;margin-left:auto;overflow-x:auto;scrollbar-width:none;-webkit-overflow-scrolling:touch}
.main-nav::-webkit-scrollbar{display:none}
.main-nav a{color:var(--muted);text-decoration:none;font-size:14px;font-weight:600;padding:8px 12px;border-radius:999px;white-space:nowrap;transition:.2s}
.main-nav a:hover{color:#fff;background:var(--glass2)}
.main-nav a[aria-current]{color:#fff;background:linear-gradient(120deg,rgba(255,79,163,.35),rgba(139,92,255,.35));box-shadow:inset 0 0 0 1px rgba(255,255,255,.18)}
@media (max-width:860px){.head-in{flex-wrap:wrap;gap:6px;padding:8px 0}.main-nav{width:100%;margin-left:0;padding-bottom:4px}}

/* hero */
.home-hero{display:grid;grid-template-columns:1.15fr .85fr;gap:32px;align-items:center;padding:56px 0 24px}
@media (max-width:860px){.home-hero{grid-template-columns:1fr;padding-top:28px}}
.page-hero{padding:44px 0 8px;max-width:860px}
.kicker{display:inline-block;font-size:13px;font-weight:700;letter-spacing:.08em;text-transform:uppercase;color:#fff;background:var(--glass2);border:1px solid var(--line);padding:5px 12px;border-radius:999px;margin:0 0 6px}
.grad{background:var(--g1);-webkit-background-clip:text;background-clip:text;color:transparent}
.accent-amber .grad{background:var(--g2);-webkit-background-clip:text;background-clip:text}
.accent-cyan .grad{background:var(--g3);-webkit-background-clip:text;background-clip:text}
.lede{font-size:clamp(17px,2vw,20px);color:#d9dcf5;max-width:720px}
.meta-line{display:flex;flex-wrap:wrap;gap:8px;align-items:center}
.pill{display:inline-flex;align-items:center;gap:6px;font-size:13px;color:#e8e9ff;background:var(--glass);border:1px solid var(--line);padding:4px 12px;border-radius:999px}
.pill.hot{background:linear-gradient(120deg,rgba(255,79,163,.25),rgba(34,211,238,.25))}
.btns{display:flex;flex-wrap:wrap;gap:10px;margin-top:18px}
.btn{display:inline-flex;align-items:center;gap:8px;padding:12px 20px;border-radius:999px;font-weight:700;text-decoration:none;color:#0b0a1f;background:var(--g1);box-shadow:0 10px 30px rgba(255,79,163,.3);transition:transform .2s}
.btn:hover{transform:translateY(-2px);color:#0b0a1f}
.btn.ghost{background:var(--glass2);color:#fff;box-shadow:inset 0 0 0 1px var(--line)}
.btn.ghost:hover{color:#fff}

/* orbit graphic */
.orbit{position:relative;aspect-ratio:1;max-width:440px;margin:auto;width:100%}
.orbit svg{width:100%;height:100%}
.orbit .spin{transform-origin:50% 50%;animation:spin 40s linear infinite}
.orbit .spin2{transform-origin:50% 50%;animation:spin 60s linear infinite reverse}
.orbit .pulse{animation:pulse 3s ease-in-out infinite}
@keyframes spin{to{transform:rotate(360deg)}}
@keyframes pulse{50%{opacity:.35}}

/* cards */
.glass{background:var(--glass);border:1px solid var(--line);border-radius:var(--radius);backdrop-filter:blur(10px);-webkit-backdrop-filter:blur(10px)}
.cards{display:grid;grid-template-columns:repeat(auto-fill,minmax(min(300px,100%),1fr));gap:18px;margin:18px 0 8px}
.card{position:relative;padding:22px;border-radius:var(--radius);background:var(--glass);border:1px solid var(--line);text-decoration:none;color:var(--ink);transition:transform .25s,border-color .25s,background .25s;overflow:hidden;display:flex;flex-direction:column}
.card::before{content:"";position:absolute;inset:0 0 auto 0;height:4px;background:var(--g1)}
.card.c2::before{background:var(--g2)}.card.c3::before{background:var(--g3)}
.card.c4::before{background:linear-gradient(120deg,var(--lime),var(--amber))}.card.c5::before{background:linear-gradient(120deg,var(--violet),var(--cyan))}
.card:hover{transform:translateY(-4px);border-color:rgba(255,255,255,.28);background:var(--glass2);color:#fff}
.card h2,.card h3{margin:.3em 0 .4em}
.card p{color:var(--muted);font-size:15px;margin-bottom:.6em}
.card .more{margin-top:auto;font-weight:700;font-size:14px;color:#9fe8ff}
.card .date{font-size:12px;color:#d6d8f7;font-weight:600;letter-spacing:.04em;text-transform:uppercase}
.icon{width:44px;height:44px;border-radius:12px;display:grid;place-items:center;background:var(--glass2);border:1px solid var(--line)}
.icon svg{width:24px;height:24px}

/* sections */
.section-head{display:flex;justify-content:space-between;align-items:end;gap:12px;margin-top:44px}
.section-head h2{margin:0}
.section-head a{font-weight:700;font-size:14px}
.timeline{list-style:none;padding:0;margin:16px 0;position:relative}
.timeline::before{content:"";position:absolute;left:11px;top:6px;bottom:6px;width:2px;background:var(--g1);opacity:.6}
.timeline li{position:relative;padding:0 0 18px 40px}
.timeline li::before{content:"";position:absolute;left:4px;top:7px;width:16px;height:16px;border-radius:50%;background:var(--bg);border:3px solid var(--pink);box-shadow:0 0 12px var(--pink)}
.timeline li:nth-child(3n+2)::before{border-color:var(--cyan);box-shadow:0 0 12px var(--cyan)}
.timeline li:nth-child(3n)::before{border-color:var(--amber);box-shadow:0 0 12px var(--amber)}
.timeline time{font-size:13px;font-weight:700;color:#fff;background:var(--glass2);padding:2px 10px;border-radius:999px;margin-right:6px}

/* article */
.layout{display:grid;grid-template-columns:minmax(0,1fr) 300px;gap:36px;align-items:start}
@media (max-width:960px){.layout{grid-template-columns:1fr}}
.prose{max-width:760px;font-size:17px}
.prose h2{padding-top:6px}
.prose h2::before{content:"";display:block;width:42px;height:4px;border-radius:4px;background:var(--g1);margin-bottom:12px}
.prose ul,.prose ol{padding-left:1.3em}
.prose li{margin:.35em 0}
.prose blockquote{margin:1.2em 0;padding:14px 18px;border-left:4px solid var(--pink);background:var(--glass);border-radius:0 12px 12px 0;color:#e7e8ff}
.dev{padding:18px 20px;margin:16px 0;border-radius:16px;background:var(--glass);border:1px solid var(--line)}
.dev h3{margin-top:0}
.dev .tag{display:inline-block;font-size:12px;font-weight:700;padding:2px 10px;border-radius:999px;background:linear-gradient(120deg,rgba(255,79,163,.3),rgba(139,92,255,.3));margin-right:6px}
.dev .tag.t2{background:linear-gradient(120deg,rgba(34,211,238,.3),rgba(163,230,53,.3))}
.dev .tag.t3{background:linear-gradient(120deg,rgba(251,191,36,.35),rgba(251,113,133,.3))}
.side{position:sticky;top:90px;display:grid;gap:16px}
.side .glass{padding:18px}
.side h2{margin:0 0 8px;font-size:16px}
.side ul{list-style:none;margin:0;padding:0}
.side li{margin:6px 0;font-size:14px}
.toc a{color:var(--muted);text-decoration:none}.toc a:hover{color:#fff}
.sources{padding:20px 22px;margin:34px 0 10px}
.sources h2{margin-top:0}
.sources ol{padding-left:1.3em;font-size:14px}
.sources li{margin:6px 0;word-break:break-word}
.src-date{color:var(--muted)}
.crumbs{font-size:13px;color:var(--muted);padding-top:20px}
.crumbs a{color:var(--muted)}
.post-meta{display:flex;flex-wrap:wrap;gap:8px;margin:8px 0 18px}
.callout{padding:16px 18px;border-radius:14px;background:linear-gradient(120deg,rgba(255,79,163,.14),rgba(34,211,238,.12));border:1px solid var(--line);margin:18px 0}
.stat-row{display:grid;grid-template-columns:repeat(auto-fit,minmax(160px,1fr));gap:12px;margin:18px 0}
.stat{padding:14px 16px;border-radius:14px;background:var(--glass);border:1px solid var(--line)}
.stat b{display:block;font-size:22px;background:var(--g1);-webkit-background-clip:text;background-clip:text;color:transparent}
.stat span{font-size:13px;color:var(--muted)}
table{width:100%;border-collapse:collapse;font-size:15px;margin:14px 0}
th,td{text-align:left;padding:10px;border-bottom:1px solid var(--line);vertical-align:top}
th{color:#fff;font-size:13px;text-transform:uppercase;letter-spacing:.05em}
.table-wrap{overflow-x:auto;border-radius:14px;border:1px solid var(--line);background:var(--glass)}

/* footer */
.site-foot{margin-top:70px;border-top:1px solid var(--line);background:rgba(8,7,24,.75);backdrop-filter:blur(10px)}
.foot-in{display:grid;grid-template-columns:2fr 1fr 1fr;gap:28px;padding:34px 0 18px}
@media (max-width:760px){.foot-in{grid-template-columns:1fr 1fr}.foot-in>div:first-child{grid-column:1/-1}}
.foot-nav{display:flex;flex-direction:column;gap:6px;font-size:14px}
.foot-nav strong{color:#fff;font-size:13px;text-transform:uppercase;letter-spacing:.08em}
.foot-nav a{color:var(--muted);text-decoration:none}.foot-nav a:hover{color:#fff}
.foot-base{display:flex;justify-content:space-between;flex-wrap:wrap;gap:8px;padding:14px 0 26px;font-size:13px;color:var(--muted);border-top:1px solid var(--line)}
.notfound{text-align:center;padding:80px 0 30px}
.notfound .big{font-size:clamp(80px,18vw,180px);font-weight:900;line-height:1;margin:0}