/* ============================================================
   Salesforce Lab — Design System
   Palette:  "Circuit Sky"
   --ink        #0A0E17   deep night navy background
   --ink-2      #10182B   elevated panel
   --ink-3      #17223B   card / input surface
   --line       rgba(255,255,255,.08)
   --text       #EAF0FB   primary text
   --text-dim   #8C99B8   secondary text
   --sky        #4FD3FF   primary accent (flow / data)
   --sky-dim    #1B4A66
   --amber      #FFB454   secondary accent (publish / CTA)
   --violet     #9C8CFF   tertiary accent (tags)
   Type: display "Space Grotesk", body "Inter", code/labels "JetBrains Mono"
   ============================================================ */

@import url('https://fonts.googleapis.com/css2?family=Space+Grotesk:wght@500;600;700&family=Inter:wght@400;500;600&family=JetBrains+Mono:wght@400;500;600&display=swap');

:root{
  --ink:#0A0E17;
  --ink-2:#10182B;
  --ink-3:#17223B;
  --line:rgba(255,255,255,.08);
  --text:#EAF0FB;
  --text-dim:#8C99B8;
  --sky:#4FD3FF;
  --sky-dim:#1B4A66;
  --amber:#FFB454;
  --violet:#9C8CFF;
  --radius:14px;
  --maxw:1120px;
}

*{box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--ink);
  color:var(--text);
  font-family:'Inter',system-ui,sans-serif;
  font-size:16px;
  line-height:1.6;
  -webkit-font-smoothing:antialiased;
}
::selection{background:var(--sky);color:var(--ink);}

h1,h2,h3,h4{
  font-family:'Space Grotesk',sans-serif;
  font-weight:700;
  line-height:1.15;
  margin:0 0 .5em;
  letter-spacing:-.01em;
}
p{margin:0 0 1em;color:var(--text);}
a{color:inherit;text-decoration:none;}
img{max-width:100%;display:block;}
button{font-family:inherit;}

.eyebrow{
  font-family:'JetBrains Mono',monospace;
  font-size:.72rem;
  letter-spacing:.14em;
  text-transform:uppercase;
  color:var(--sky);
  display:flex;align-items:center;gap:.5em;
}
.eyebrow::before{
  content:'';
  width:7px;height:7px;border-radius:50%;
  background:var(--sky);
  box-shadow:0 0 8px var(--sky);
}

.wrap{max-width:var(--maxw);margin:0 auto;padding:0 24px;}

/* ---------- Header ---------- */
.site-header{
  position:sticky;top:0;z-index:50;
  background:rgba(10,14,23,.85);
  backdrop-filter:blur(10px);
  border-bottom:1px solid var(--line);
}
.site-header .wrap{
  display:flex;align-items:center;justify-content:space-between;
  padding-top:16px;padding-bottom:16px;
}
.brand{
  display:flex;align-items:center;gap:10px;
  font-family:'Space Grotesk',sans-serif;
  font-weight:700;font-size:1.15rem;
}
.brand .mark{
  width:30px;height:30px;border-radius:8px;
  background:linear-gradient(135deg,var(--sky),var(--violet));
  display:flex;align-items:center;justify-content:center;
  font-family:'JetBrains Mono',monospace;font-weight:600;font-size:.85rem;color:var(--ink);
}
.brand .tag{
  font-family:'JetBrains Mono',monospace;font-weight:400;font-size:.7rem;
  color:var(--text-dim);letter-spacing:.06em;text-transform:uppercase;
  display:block;margin-top:2px;
}
nav.main-nav{display:flex;align-items:center;gap:28px;}
nav.main-nav a{
  font-size:.92rem;color:var(--text-dim);transition:color .15s;
  position:relative;
}
nav.main-nav a:hover,nav.main-nav a.active{color:var(--text);}
.search-btn{
  display:flex;align-items:center;gap:8px;
  background:var(--ink-3);border:1px solid var(--line);
  border-radius:99px;padding:8px 14px;color:var(--text-dim);
  font-size:.85rem;cursor:pointer;
}
.search-btn:hover{border-color:var(--sky);color:var(--text);}

/* ---------- Hero ---------- */
.hero{
  padding:72px 0 40px;
  position:relative;overflow:hidden;
}
.hero-flow{position:absolute;inset:0;pointer-events:none;opacity:.5;}
.hero h1{font-size:clamp(2.2rem,5vw,3.4rem);max-width:760px;}
.hero h1 .accent{color:var(--sky);}
.hero p.lead{font-size:1.1rem;color:var(--text-dim);max-width:560px;}

/* ---------- Category pills ---------- */
.pill-row{display:flex;flex-wrap:wrap;gap:10px;margin:28px 0 8px;}
.pill{
  font-family:'JetBrains Mono',monospace;font-size:.78rem;
  border:1px solid var(--line);color:var(--text-dim);
  padding:7px 14px;border-radius:99px;transition:all .15s;
  white-space:nowrap;
}
.pill:hover,.pill.active{border-color:var(--sky);color:var(--sky);background:rgba(79,211,255,.08);}

/* ---------- Section heading ---------- */
.section-head{
  display:flex;align-items:baseline;justify-content:space-between;
  margin:56px 0 22px;flex-wrap:wrap;gap:8px;
}
.section-head h2{font-size:1.5rem;}
.section-head .view-all{font-size:.85rem;color:var(--sky);}

/* ---------- Featured post ---------- */
.featured{
  display:grid;grid-template-columns:1.1fr 1fr;gap:0;
  background:var(--ink-2);border:1px solid var(--line);
  border-radius:var(--radius);overflow:hidden;
  transition:border-color .2s;
}
.featured:hover{border-color:var(--sky-dim);}
.featured .fig{
  aspect-ratio:16/11;background:linear-gradient(135deg,var(--ink-3),var(--sky-dim));
  display:flex;align-items:center;justify-content:center;position:relative;overflow:hidden;
}
.featured .fig img{width:100%;height:100%;object-fit:cover;}
.featured .body{padding:34px;display:flex;flex-direction:column;justify-content:center;gap:12px;}
.featured .body h3{font-size:1.6rem;}
.featured .body p{color:var(--text-dim);}
.meta-row{
  display:flex;align-items:center;gap:14px;
  font-family:'JetBrains Mono',monospace;font-size:.75rem;color:var(--text-dim);
  flex-wrap:wrap;
}
.meta-row .dot{width:4px;height:4px;border-radius:50%;background:var(--text-dim);}
.cat-tag{
  font-family:'JetBrains Mono',monospace;font-size:.72rem;letter-spacing:.05em;
  color:var(--amber);text-transform:uppercase;
}
.cta-link{
  display:inline-flex;align-items:center;gap:6px;
  color:var(--sky);font-weight:600;font-size:.9rem;margin-top:6px;
}
.cta-link .arrow{transition:transform .15s;}
.featured:hover .cta-link .arrow,.card:hover .cta-link .arrow{transform:translateX(4px);}

/* ---------- Post grid ---------- */
.post-grid{
  display:grid;grid-template-columns:repeat(3,1fr);gap:22px;
}
.card{
  background:var(--ink-2);border:1px solid var(--line);border-radius:var(--radius);
  overflow:hidden;display:flex;flex-direction:column;transition:border-color .2s,transform .2s;
}
.card:hover{border-color:var(--sky-dim);transform:translateY(-3px);}
.card .fig{
  aspect-ratio:16/10;background:linear-gradient(135deg,var(--ink-3),#0d1830);
  position:relative;overflow:hidden;
}
.card .fig img{width:100%;height:100%;object-fit:cover;}
.card .fig .fig-cat{
  position:absolute;top:12px;left:12px;
  background:rgba(10,14,23,.75);backdrop-filter:blur(4px);
  padding:4px 10px;border-radius:99px;
  font-family:'JetBrains Mono',monospace;font-size:.68rem;color:var(--amber);
  text-transform:uppercase;letter-spacing:.04em;
}
.card .body{padding:20px;display:flex;flex-direction:column;gap:8px;flex:1;}
.card h3{font-size:1.08rem;}
.card p{color:var(--text-dim);font-size:.92rem;margin-bottom:4px;}

@media(max-width:860px){
  .post-grid{grid-template-columns:repeat(2,1fr);}
  .featured{grid-template-columns:1fr;}
}
@media(max-width:600px){
  .post-grid{grid-template-columns:1fr;}
  nav.main-nav{display:none;}
}

/* ---------- Footer ---------- */
.site-footer{
  border-top:1px solid var(--line);margin-top:90px;padding:40px 0;
  color:var(--text-dim);font-size:.85rem;
}
.site-footer .wrap{display:flex;justify-content:space-between;flex-wrap:wrap;gap:12px;}

/* ---------- Buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:11px 20px;border-radius:10px;font-weight:600;font-size:.9rem;
  border:1px solid var(--line);cursor:pointer;transition:all .15s;
  background:var(--ink-3);color:var(--text);
}
.btn:hover{border-color:var(--sky);color:var(--sky);}
.btn-primary{background:var(--sky);color:var(--ink);border-color:var(--sky);}
.btn-primary:hover{background:#6fdcff;color:var(--ink);}
.btn-amber{background:var(--amber);color:var(--ink);border-color:var(--amber);}
.btn-amber:hover{background:#ffc677;}
.btn-danger{color:#ff8a8a;border-color:rgba(255,138,138,.3);background:transparent;}
.btn-danger:hover{background:rgba(255,138,138,.1);border-color:#ff8a8a;}
.btn-ghost{background:transparent;}
.btn:disabled{opacity:.5;cursor:not-allowed;}

/* ---------- Forms ---------- */
input,textarea,select{
  width:100%;background:var(--ink-3);border:1px solid var(--line);
  border-radius:8px;padding:10px 12px;color:var(--text);font-size:.92rem;
  font-family:inherit;
}
input:focus,textarea:focus,select:focus{outline:none;border-color:var(--sky);}
label{font-size:.8rem;color:var(--text-dim);font-family:'JetBrains Mono',monospace;
  text-transform:uppercase;letter-spacing:.04em;display:block;margin-bottom:6px;}
:focus-visible{outline:2px solid var(--sky);outline-offset:2px;}

/* ---------- Empty state ---------- */
.empty-state{
  text-align:center;padding:70px 20px;color:var(--text-dim);
  border:1px dashed var(--line);border-radius:var(--radius);
}
.empty-state h3{color:var(--text);margin-bottom:8px;}

@media (prefers-reduced-motion: reduce){
  *{animation-duration:.001ms !important;transition-duration:.001ms !important;}
}