/* ==========================================================================
   COOLBOT — design tokens
   Palette:  --paper #F0F1EA  --ink #14161B  --panel #FFFFFF
             --signal #FF4423 (bot-eye red)  --wire #1F8A70 (circuit green)
             --muted #6B7075  --line #D9DAD2
   Type:     Display/mono  "JetBrains Mono"   Body "Inter"
   ========================================================================== */

@import url('https://fonts.googleapis.com/css2?family=JetBrains+Mono:ital,wght@0,400;0,500;0,700;0,800;1,400&family=Inter:wght@400;500;600;700;800&display=swap');

:root{
  --paper:#F0F1EA;
  --panel:#FFFFFF;
  --ink:#14161B;
  --signal:#FF4423;
  --signal-dim:#FFE3DA;
  --wire:#1F8A70;
  --wire-dim:#DCEFE9;
  --muted:#6B7075;
  --line:#D9DAD2;
  --mono: 'JetBrains Mono', ui-monospace, monospace;
  --sans: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
  --radius: 3px;
}

*{box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--paper);
  color:var(--ink);
  font-family:var(--sans);
  font-size:16px;
  line-height:1.6;
  -webkit-font-smoothing:antialiased;
}

img{max-width:100%;display:block;}
a{color:inherit;}

::selection{background:var(--signal);color:#fff;}

@media (prefers-reduced-motion: reduce){
  *{animation-duration:0.001ms !important;animation-iteration-count:1 !important;transition-duration:0.001ms !important;scroll-behavior:auto !important;}
}

.wrap{
  max-width:1120px;
  margin:0 auto;
  padding:0 28px;
}

/* focus visibility */
a:focus-visible,button:focus-visible,input:focus-visible,textarea:focus-visible{
  outline:2px solid var(--signal);
  outline-offset:3px;
}

/* ---------- topbar ---------- */
.topbar{
  position:sticky; top:0; z-index:50;
  background:rgba(240,241,234,0.92);
  backdrop-filter:blur(6px);
  border-bottom:1px solid var(--line);
}
.topbar-inner{
  display:flex; align-items:center; justify-content:space-between;
  padding:16px 28px;
  max-width:1120px; margin:0 auto;
}
.brand{
  display:flex; align-items:center; gap:10px;
  font-family:var(--mono); font-weight:800; font-size:18px;
  letter-spacing:-0.02em;
  text-decoration:none; color:var(--ink);
}
.brand-dot{
  width:10px;height:10px;border-radius:50%;
  background:var(--signal);
  box-shadow:0 0 0 3px var(--signal-dim);
  animation:blink 2.6s infinite ease-in-out;
}
@keyframes blink{
  0%,100%{opacity:1;} 50%{opacity:0.25;}
}
.nav{display:flex; gap:28px; align-items:center;}
.nav a{
  font-family:var(--mono); font-size:13px; text-decoration:none;
  color:var(--muted); text-transform:lowercase;
  border-bottom:1px solid transparent;
  padding-bottom:2px;
  transition:color .15s ease, border-color .15s ease;
}
.nav a:hover{color:var(--ink); border-color:var(--signal);}
.nav-toggle{display:none;}

/* ---------- hero ---------- */
.hero{
  padding:88px 0 64px;
  border-bottom:1px solid var(--line);
}
.hero-inner{
  display:grid;
  grid-template-columns:1.15fr 0.85fr;
  gap:48px;
  align-items:end;
}
.term{
  background:var(--ink);
  color:#E9F5EF;
  border-radius:8px;
  padding:16px 18px 20px;
  font-family:var(--mono);
  font-size:13px;
  box-shadow:0 18px 40px -18px rgba(20,22,27,0.55);
}
.term-bar{
  display:flex; gap:6px; margin-bottom:14px;
}
.term-dot{width:9px;height:9px;border-radius:50%;}
.term-dot.r{background:#FF5F57;}
.term-dot.y{background:#FEBC2E;}
.term-dot.g{background:#28C840;}
.term-line{margin:2px 0; white-space:pre-wrap;}
.term-prompt{color:#6FE3B4;}
.caret{
  display:inline-block; width:7px; height:14px; background:#E9F5EF;
  margin-left:2px; vertical-align:-2px;
  animation:caret 1s steps(1) infinite;
}
@keyframes caret{0%,49%{opacity:1;}50%,100%{opacity:0;}}

.eyebrow{
  font-family:var(--mono); font-size:12px; letter-spacing:.08em;
  color:var(--signal); text-transform:uppercase;
  display:inline-flex; align-items:center; gap:8px;
  margin-bottom:18px;
}
.eyebrow::before{
  content:""; width:20px; height:1px; background:var(--signal);
}
h1.headline{
  font-family:var(--mono);
  font-weight:800;
  font-size:clamp(34px, 5vw, 58px);
  line-height:1.04;
  letter-spacing:-0.02em;
  margin:0 0 20px;
}
h1.headline .accent{color:var(--signal);}
.sub{
  font-size:18px; color:var(--muted); max-width:46ch; margin:0 0 28px;
}
.hero-actions{display:flex; gap:14px; flex-wrap:wrap;}
.btn{
  font-family:var(--mono); font-size:13px; font-weight:700;
  text-decoration:none; padding:12px 20px; border-radius:var(--radius);
  border:1px solid var(--ink); display:inline-flex; align-items:center; gap:8px;
  transition:transform .15s ease, background .15s ease, color .15s ease;
}
.btn-solid{background:var(--ink); color:var(--paper);}
.btn-solid:hover{background:var(--signal); border-color:var(--signal); transform:translateY(-1px);}
.btn-outline{background:transparent; color:var(--ink);}
.btn-outline:hover{background:var(--ink); color:var(--paper); transform:translateY(-1px);}

/* ---------- section headers ---------- */
.section{padding:64px 0;}
.section-head{
  display:flex; align-items:baseline; justify-content:space-between;
  gap:20px; margin-bottom:34px; flex-wrap:wrap;
  border-bottom:1px solid var(--line); padding-bottom:16px;
}
.section-title{
  font-family:var(--mono); font-weight:800; font-size:26px; letter-spacing:-0.01em;
  margin:0; display:flex; align-items:center; gap:10px;
}
.section-title .idx{color:var(--signal);}
.section-note{font-family:var(--mono); font-size:12.5px; color:var(--muted);}

/* ---------- post grid / terminal cards ---------- */
.grid{
  display:grid; grid-template-columns:repeat(3, 1fr); gap:24px;
}
.card{
  background:var(--panel); border:1px solid var(--line); border-radius:8px;
  overflow:hidden; text-decoration:none; color:var(--ink);
  display:flex; flex-direction:column;
  transition:transform .18s ease, box-shadow .18s ease, border-color .18s ease;
}
.card:hover{
  transform:translateY(-4px);
  box-shadow:0 20px 34px -22px rgba(20,22,27,0.35);
  border-color:var(--ink);
}
.card-bar{
  display:flex; align-items:center; gap:6px;
  padding:10px 12px; background:var(--ink);
}
.card-log{
  margin-left:auto; font-family:var(--mono); font-size:10.5px; color:#8FA39A;
  letter-spacing:.04em;
}
.card-body{padding:20px 20px 22px; display:flex; flex-direction:column; gap:12px; flex:1;}
.card-tag{
  font-family:var(--mono); font-size:11px; text-transform:uppercase; letter-spacing:.06em;
  color:var(--wire); background:var(--wire-dim); align-self:flex-start;
  padding:3px 8px; border-radius:20px;
}
.card-title{font-size:19px; font-weight:700; line-height:1.3; margin:0;}
.card-excerpt{font-size:14.5px; color:var(--muted); margin:0; flex:1;}
.card-meta{
  font-family:var(--mono); font-size:11.5px; color:var(--muted);
  display:flex; justify-content:space-between; border-top:1px dashed var(--line);
  padding-top:12px; margin-top:4px;
}
.card-meta .read{color:var(--signal); font-weight:700;}

/* ---------- featured strip ---------- */
.featured{
  display:grid; grid-template-columns:1fr 1fr; gap:0;
  border:1px solid var(--line); border-radius:8px; overflow:hidden; background:var(--panel);
}
.featured-visual{
  background:
    repeating-linear-gradient(135deg, #FFE3DA 0 2px, transparent 2px 14px),
    var(--ink);
  min-height:280px; position:relative; display:flex; align-items:flex-end; padding:22px;
}
.featured-visual .tag{
  font-family:var(--mono); color:#E9F5EF; font-size:12px; letter-spacing:.06em;
  border:1px solid rgba(233,245,239,.35); padding:5px 10px; border-radius:20px;
}
.featured-content{padding:34px 36px; display:flex; flex-direction:column; gap:14px;}
.featured-content h3{font-size:26px; margin:0; line-height:1.25;}
.featured-content p{color:var(--muted); margin:0;}

/* ---------- about / newsletter ---------- */
.split{
  display:grid; grid-template-columns:1fr 1fr; gap:48px; align-items:center;
}
.panel-box{
  background:var(--panel); border:1px solid var(--line); border-radius:8px; padding:30px;
}
.log-list{list-style:none; margin:18px 0 0; padding:0; display:flex; flex-direction:column; gap:10px;}
.log-list li{
  font-family:var(--mono); font-size:13px; color:var(--muted);
  display:flex; gap:10px; align-items:flex-start;
}
.log-list li::before{content:"→"; color:var(--signal); flex-shrink:0;}

.signup{display:flex; gap:10px; margin-top:20px; flex-wrap:wrap;}
.signup input{
  flex:1; min-width:180px; padding:12px 14px; border-radius:var(--radius);
  border:1px solid var(--ink); font-family:var(--mono); font-size:13px; background:var(--paper);
}
.signup input::placeholder{color:var(--muted);}

/* ---------- footer ---------- */
footer{
  border-top:1px solid var(--line); padding:36px 0 46px; margin-top:20px;
}
.footer-inner{
  display:flex; justify-content:space-between; align-items:center; flex-wrap:wrap; gap:14px;
}
.footer-inner p{margin:0; font-family:var(--mono); font-size:12px; color:var(--muted);}
.footer-links{display:flex; gap:18px;}
.footer-links a{font-family:var(--mono); font-size:12px; color:var(--muted); text-decoration:none;}
.footer-links a:hover{color:var(--signal);}

/* ---------- article page ---------- */
.article-hero{padding:56px 0 30px; border-bottom:1px solid var(--line);}
.crumb{
  font-family:var(--mono); font-size:12px; color:var(--muted); text-decoration:none;
  display:inline-flex; align-items:center; gap:6px; margin-bottom:22px;
}
.crumb:hover{color:var(--signal);}
.article-meta{
  display:flex; gap:14px; align-items:center; font-family:var(--mono); font-size:12px;
  color:var(--muted); margin-bottom:16px; flex-wrap:wrap;
}
.article-meta .card-tag{position:relative; top:-1px;}
.article-title{
  font-family:var(--mono); font-weight:800; font-size:clamp(30px,4.4vw,46px);
  line-height:1.08; letter-spacing:-0.02em; margin:0 0 18px;
}
.article-dek{font-size:18px; color:var(--muted); max-width:60ch;}
.article-body{
  max-width:70ch; margin:0 auto; padding:48px 0 20px;
}
.article-body p{margin:0 0 22px; font-size:17px;}
.article-body h2{
  font-family:var(--mono); font-size:23px; margin:44px 0 16px; letter-spacing:-0.01em;
}
.article-body h3{font-size:19px; margin:30px 0 12px;}
.article-body ul, .article-body ol{margin:0 0 22px; padding-left:22px;}
.article-body li{margin-bottom:8px; font-size:17px;}
.pull{
  font-family:var(--mono); font-size:19px; line-height:1.5; color:var(--ink);
  border-left:3px solid var(--signal); padding:4px 0 4px 20px; margin:36px 0;
}
.callout{
  background:var(--wire-dim); border:1px solid #BFE4D9; border-radius:8px;
  padding:18px 20px; margin:30px 0; font-size:15.5px;
}
.callout strong{color:var(--wire);}
.article-footer{
  max-width:70ch; margin:0 auto; padding-top:20px; border-top:1px dashed var(--line);
  display:flex; justify-content:space-between; align-items:center; flex-wrap:wrap; gap:12px;
}
.share{display:flex; gap:10px;}
.share a{
  font-family:var(--mono); font-size:12px; border:1px solid var(--ink); border-radius:20px;
  padding:6px 12px; text-decoration:none;
}
.share a:hover{background:var(--ink); color:var(--paper);}

.next-up{
  border-top:1px solid var(--line); padding:56px 0 70px;
}

/* ---------- responsive ---------- */
@media (max-width: 880px){
  .hero-inner{grid-template-columns:1fr; gap:36px;}
  .grid{grid-template-columns:1fr 1fr;}
  .featured{grid-template-columns:1fr;}
  .split{grid-template-columns:1fr;}
  .nav{
    position:fixed; inset:64px 0 auto 0; background:var(--paper);
    flex-direction:column; align-items:flex-start; gap:0;
    border-bottom:1px solid var(--line);
    transform:translateY(-8px); opacity:0; pointer-events:none;
    transition:opacity .18s ease, transform .18s ease;
  }
  .nav.open{opacity:1; transform:translateY(0); pointer-events:auto;}
  .nav a{padding:14px 28px; width:100%; border-bottom:1px solid var(--line);}
  .nav-toggle{
    display:inline-flex; background:none; border:1px solid var(--ink); border-radius:var(--radius);
    padding:8px 10px; font-family:var(--mono); cursor:pointer;
  }
}
@media (max-width: 620px){
  .grid{grid-template-columns:1fr;}
  .hero{padding:56px 0 44px;}
}