@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700;800;900&family=JetBrains+Mono:wght@400;500;700&display=swap');

*,*::before,*::after{margin:0;padding:0;box-sizing:border-box}

:root{
  --bg:        #04060e;
  --bg-sidebar:#070b14;
  --bg-out:    #060b16;
  --bg-label:  #050810;
  --border:    #1a2236;
  --border-dim:#0d1726;
  --cyan:      #00f0ff;
  --cyan-dim:  #00f0ff30;
  --purple:    #a855f7;
  --purple-dim:#a855f730;
  --green:     #22c55e;
  --green-dim: #22c55e30;
  --amber:     #f59e0b;
  --text:      #e2e8f0;
  --text-dim:  #64748b;
  --text-mid:  #94a3b8;
}

html{scroll-behavior:smooth}
body{
  font-family:'Inter',sans-serif;
  background:var(--bg);color:var(--text);
  overflow-x:hidden;line-height:1.7;
  display:flex;min-height:100vh;
}

/* ── PARTICLE BG ── */
#galaxy{
  position:fixed;top:0;left:0;
  width:100%;height:100%;z-index:0;
  pointer-events:none;opacity:.4;
}
.grid-overlay{
  position:fixed;inset:0;z-index:0;pointer-events:none;
  background-image:
    linear-gradient(rgba(0,240,255,.012) 1px,transparent 1px),
    linear-gradient(90deg,rgba(0,240,255,.012) 1px,transparent 1px);
  background-size:48px 48px;
}

/* ═══════════════════════════════════════
   SIDEBAR
═══════════════════════════════════════ */
.sidebar{
  position:fixed;top:0;left:0;bottom:0;
  width:220px;z-index:50;
  background:var(--bg-sidebar);
  border-right:1px solid var(--border);
  display:flex;flex-direction:column;
  overflow:hidden;transition:transform .3s;
}
.sidebar-header{
  padding:18px 16px 14px;
  border-bottom:1px solid var(--border);
  display:flex;align-items:center;gap:10px;flex-shrink:0;
}
.kernel-badge{
  margin-left:auto;font-family:'JetBrains Mono',monospace;
  font-size:.6rem;color:var(--green);
  background:var(--green-dim);padding:2px 7px;border-radius:3px;
  display:flex;align-items:center;gap:4px;flex-shrink:0;
}
.kernel-badge::before{
  content:'';width:5px;height:5px;border-radius:50%;
  background:var(--green);animation:pulse-dot 2s infinite;
}
@keyframes pulse-dot{0%,100%{opacity:1}50%{opacity:.3}}

.sidebar-section{
  font-family:'JetBrains Mono',monospace;
  font-size:.58rem;color:var(--text-dim);
  letter-spacing:.12em;text-transform:uppercase;
  padding:16px 16px 6px;
}
.sidebar-nav{flex:1;overflow-y:auto;padding-bottom:20px}
.sidebar-nav::-webkit-scrollbar{width:3px}
.sidebar-nav::-webkit-scrollbar-track{background:transparent}
.sidebar-nav::-webkit-scrollbar-thumb{background:#1e293b;border-radius:2px}

.nav-item{
  display:flex;align-items:center;gap:8px;
  padding:6px 16px;
  font-family:'JetBrains Mono',monospace;font-size:.68rem;
  color:var(--text-dim);text-decoration:none;cursor:pointer;
  transition:all .2s;border-left:2px solid transparent;
}
.nav-item:hover{color:var(--text);background:#0f172a;border-left-color:var(--cyan-dim)}
.nav-item.active{color:var(--cyan);background:#00f0ff08;border-left-color:var(--cyan)}
.nav-item .cell-n{font-size:.6rem;color:var(--text-dim);opacity:.5;min-width:22px}
.nav-item .cell-ico{font-size:.7rem;opacity:.6}

.sidebar-footer{
  padding:14px 16px;border-top:1px solid var(--border);flex-shrink:0;
  display:flex;flex-direction:column;gap:8px;
}
.sidebar-footer a{
  display:flex;align-items:center;gap:7px;
  padding:8px 12px;border-radius:6px;
  background:#00f0ff0d;border:1px solid var(--cyan-dim);
  color:var(--cyan);font-size:.72rem;font-weight:600;
  text-decoration:none;letter-spacing:.06em;text-transform:uppercase;
  font-family:'JetBrains Mono',monospace;transition:all .25s;
}
.sidebar-footer a:hover{background:#00f0ff1a;box-shadow:0 0 20px #00f0ff22}
.sidebar-footer-rag{
  background:#22c55e0d!important;border-color:var(--green-dim)!important;
  color:var(--green)!important;
}
.sidebar-footer-rag:hover{background:#22c55e1a!important;box-shadow:0 0 20px #22c55e22!important}

/* ═══════════════════════════════════════
   NOTEBOOK MAIN
═══════════════════════════════════════ */
.notebook{
  margin-left:220px;flex:1;min-width:0;
  position:relative;z-index:2;padding-bottom:120px;
}

/* ── TOPBAR ── */
.topbar{
  position:sticky;top:0;z-index:40;
  display:flex;align-items:center;
  background:var(--bg-sidebar);
  border-bottom:1px solid var(--border);
  height:46px;
}
.topbar-tabs{display:flex;flex:1;height:100%}
.topbar-tab{
  display:flex;align-items:center;gap:8px;
  padding:0 20px;height:100%;
  font-family:'JetBrains Mono',monospace;font-size:.7rem;
  color:var(--text-dim);cursor:pointer;
  border:none;border-right:1px solid var(--border);
  background:transparent;transition:all .2s;position:relative;white-space:nowrap;
}
.topbar-tab.active{color:var(--text)}
.topbar-tab.active::after{
  content:'';position:absolute;bottom:0;left:0;right:0;height:2px;
  background:linear-gradient(90deg,var(--cyan),var(--purple));
}
.topbar-tab .dot{
  width:7px;height:7px;border-radius:50%;background:var(--green);
  animation:pulse-dot 2s infinite;
}
.topbar-actions{
  display:flex;align-items:center;gap:8px;
  padding:0 16px;height:100%;border-left:1px solid var(--border);
}
.topbar-btn{
  display:flex;align-items:center;gap:6px;
  padding:5px 12px;border-radius:4px;
  font-family:'JetBrains Mono',monospace;font-size:.68rem;
  cursor:pointer;transition:all .2s;border:none;color:inherit;
}
.topbar-btn.hf-link{
  background:#a855f715;color:var(--purple);
  border:1px solid var(--purple-dim);text-decoration:none;
}
.topbar-btn.hf-link:hover{background:#a855f725}
.topbar-btn.rag-link{
  background:#22c55e12;color:var(--green);
  border:1px solid var(--green-dim);text-decoration:none;
}
.topbar-btn.rag-link:hover{background:#22c55e22}

/* ═══════════════════════════════════════
   SPLIT LAYOUT — label strip + content pane
═══════════════════════════════════════ */
.term-block{
  display:flex;
  border-bottom:1px solid var(--border-dim);
  position:relative;
}

/* Left label strip */
.blabel{
  width:110px;
  flex-shrink:0;
  background:var(--bg-label);
  border-right:1px solid var(--border);
  padding:22px 14px 22px 16px;
  display:flex;flex-direction:column;gap:5px;
  align-items:flex-start;
}
.bl-num{
  font-family:'JetBrains Mono',monospace;
  font-size:.5rem;color:#1a2e44;
  letter-spacing:.07em;
}
.bl-id{
  font-family:'JetBrains Mono',monospace;
  font-size:.6rem;color:#253d58;
  line-height:1.45;letter-spacing:.04em;
  margin-top:2px;
}
.bl-time{
  font-family:'JetBrains Mono',monospace;
  font-size:.48rem;color:#162030;
  letter-spacing:.06em;margin-top:auto;
}

/* Right content pane */
.bpane{flex:1;min-width:0}

.term-content{
  padding:32px 48px;
  max-width:760px;
  background:var(--bg-out);
}
.term-block.md-block .term-content{background:#070a15}

/* ═══════════════════════════════════════
   TERMINAL OUTPUT ROWS (stories)
═══════════════════════════════════════ */
.tl-row{
  display:flex;align-items:baseline;gap:14px;
  font-family:'JetBrains Mono',monospace;
  font-size:.72rem;
  margin-bottom:6px;
  line-height:1.5;
}
.tl-k{
  color:#2d4a6a;
  font-size:.58rem;letter-spacing:.12em;text-transform:uppercase;
  min-width:52px;flex-shrink:0;padding-top:1px;
}
.tl-v{color:var(--text-mid)}
.tl-title{color:var(--text);font-size:.82rem;font-weight:600;font-family:'Inter',sans-serif}
.tl-cyan{color:var(--cyan);font-weight:600}

.tl-divider{
  height:1px;background:var(--border-dim);
  margin:16px 0;
}
.tl-body{
  padding-left:66px;
}
.tl-body p{
  color:var(--text-mid);font-size:.88rem;line-height:1.85;
  margin-bottom:12px;
}
.tl-body p:last-child{margin-bottom:0}
.tl-body strong{color:var(--text);font-weight:600}

.tl-out{margin-top:4px}

/* ── Typewriter cursor ── */
.tw-cursor::after{
  content:'▋';
  color:var(--cyan);
  animation:blink-cursor .7s step-end infinite;
  font-size:.85em;
  margin-left:1px;
}
@keyframes blink-cursor{0%,100%{opacity:1}50%{opacity:0}}

/* ═══════════════════════════════════════
   MANIFESTO LOG LINES
═══════════════════════════════════════ */
.log-block{
  display:flex;flex-direction:column;gap:0;
}
.log-ln{
  display:flex;align-items:baseline;gap:10px;
  font-family:'JetBrains Mono',monospace;
  font-size:.78rem;line-height:1.9;
  color:var(--text-mid);
  opacity:0;transform:translateX(-6px);
  transition:opacity .4s,transform .4s;
}
.log-ln.visible{opacity:1;transform:none}
.log-pre{
  color:#1e3a52;flex-shrink:0;width:12px;
  font-weight:700;
}
.log-ln em{font-style:normal;color:var(--cyan)}
.log-ln .strike{text-decoration:line-through;opacity:.35}
.log-indent{padding-left:22px}
.log-gap{height:12px;opacity:1!important;transform:none!important}

/* ═══════════════════════════════════════
   HERO CONTENT
═══════════════════════════════════════ */
.nb-h1{
  font-size:clamp(2.2rem,5vw,3.8rem);font-weight:900;
  line-height:1.06;letter-spacing:-.03em;margin-bottom:20px;
}
.nb-h1 .grad{
  background:linear-gradient(135deg,#38bdf8 0%,#00f0ff 40%,#0ea5e9 70%,#1d4ed8 100%);
  -webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text;
}
.nb-h2{
  font-size:clamp(1.5rem,3vw,2.4rem);font-weight:800;
  letter-spacing:-.02em;line-height:1.15;margin-bottom:12px;
}
.nb-p{
  color:var(--text-mid);font-size:.95rem;line-height:1.85;margin-bottom:16px;
}
.nb-p strong{color:var(--text);font-weight:600}
.nb-p em{font-style:normal;color:var(--cyan);font-weight:600}
.nb-p .strike{text-decoration:line-through;opacity:.4}

.hero-badge{
  display:inline-flex;align-items:center;gap:8px;
  padding:5px 14px;
  border:1px solid var(--purple-dim);border-radius:100px;
  font-family:'JetBrains Mono',monospace;
  font-size:.72rem;color:var(--purple);
  letter-spacing:.06em;margin-bottom:24px;
}
.hero-badge .dot{
  width:5px;height:5px;background:var(--green);
  border-radius:50%;animation:pulse-dot 2s infinite;
}
.hero-cta-row{display:flex;gap:12px;margin-top:28px;flex-wrap:wrap}
.btn-primary{
  display:inline-flex;align-items:center;gap:9px;
  padding:13px 28px;
  background:linear-gradient(135deg,var(--cyan),#0090ff);
  color:var(--bg);font-weight:700;font-size:.9rem;letter-spacing:.04em;
  border:none;border-radius:6px;text-decoration:none;cursor:pointer;
  transition:all .25s;box-shadow:0 0 30px #00f0ff33,0 0 60px #00f0ff11;
}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 0 50px #00f0ff44}
.btn-secondary{
  display:inline-flex;align-items:center;
  padding:13px 28px;background:transparent;
  border:1px solid #ffffff14;color:var(--text-mid);
  font-weight:500;font-size:.9rem;
  border-radius:6px;text-decoration:none;transition:all .25s;
}
.btn-secondary:hover{border-color:var(--purple-dim);color:var(--text)}

/* ── TICKER ── */
.ticker-wrap{overflow:hidden;padding:12px 0}
.ticker{
  display:flex;gap:48px;
  animation:scroll-left 40s linear infinite;
  width:max-content;
}
.ticker span{
  font-family:'JetBrains Mono',monospace;
  font-size:.68rem;color:#334155;
  letter-spacing:.1em;text-transform:uppercase;white-space:nowrap;
}
@keyframes scroll-left{from{transform:translateX(0)}to{transform:translateX(-50%)}}

/* ── STATS TABLE ── */
.stats-table{
  font-family:'JetBrains Mono',monospace;
  font-size:.78rem;width:100%;border-collapse:collapse;
}
.stats-table th{
  text-align:left;color:var(--text-dim);
  padding:6px 16px 6px 0;
  border-bottom:1px solid var(--border);
  font-size:.62rem;letter-spacing:.1em;text-transform:uppercase;
}
.stats-table td{
  padding:10px 16px 10px 0;
  border-bottom:1px solid var(--border-dim);vertical-align:middle;
}
.stats-table tr:last-child td{border-bottom:none}
.stat-key{color:var(--cyan);font-size:.72rem}
.stat-desc{color:var(--text-dim);font-size:.75rem}
.stat-val{
  font-size:1.4rem;font-weight:700;
  background:linear-gradient(135deg,var(--cyan),var(--purple));
  -webkit-background-clip:text;-webkit-text-fill-color:transparent;
  background-clip:text;font-family:'JetBrains Mono',monospace;
}
.stat-bar-inner{
  height:4px;border-radius:2px;
  background:linear-gradient(90deg,var(--cyan),var(--purple));
  box-shadow:0 0 8px #00f0ff44;
  transition:width .8s cubic-bezier(.16,1,.3,1);
}
.stat-bar-wrap{
  width:100%;max-width:200px;
  background:#1a2236;border-radius:2px;height:4px;overflow:hidden;
}

/* ── HOW CARDS ── */
.how-grid-nb{
  display:grid;grid-template-columns:repeat(auto-fit,minmax(260px,1fr));
  gap:12px;
}
.how-card-nb{
  padding:20px;border-radius:8px;
  border:1px solid var(--border);background:#080e1a;transition:all .3s;
}
.how-card-nb:hover{border-color:var(--cyan-dim);box-shadow:0 0 20px #00f0ff11}
.how-card-nb .icon{font-size:1.5rem;margin-bottom:10px}
.how-card-nb h4{font-size:.95rem;font-weight:700;margin-bottom:8px}
.how-card-nb p{font-size:.82rem;color:var(--text-mid);line-height:1.7}

/* ── QUOTE ── */
.nb-quote{
  border-left:3px solid;
  border-image:linear-gradient(180deg,var(--cyan),var(--purple)) 1;
  padding:16px 24px;background:#00f0ff04;
}
.nb-quote p{
  font-size:1.05rem;font-weight:300;font-style:italic;
  line-height:1.8;color:var(--text);margin-bottom:8px;
}
.nb-quote cite{
  font-family:'JetBrains Mono',monospace;
  font-size:.68rem;color:var(--text-dim);font-style:normal;
}

/* ── KM WIDGET ── */
.km-cta{display:flex;align-items:center;gap:16px;flex-wrap:wrap}
.km-meta{
  font-family:'JetBrains Mono',monospace;
  font-size:.68rem;color:var(--text-dim);
  display:flex;align-items:center;gap:6px;
}
.km-meta span{color:var(--text-mid)}

/* ── FINAL CTA ── */
.final-output{text-align:center;padding:20px 0}
.final-output h2{
  font-size:clamp(1.8rem,4vw,2.8rem);font-weight:900;
  letter-spacing:-.02em;margin-bottom:14px;
}
.final-output h2 .grad{
  background:linear-gradient(135deg,var(--cyan),#ff00aa);
  -webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text;
}
.final-output p{
  color:var(--text-mid);font-size:.95rem;
  max-width:480px;margin:0 auto 28px;line-height:1.8;
}

/* ── FOOTER ── */
.nb-footer{
  font-family:'JetBrains Mono',monospace;
  font-size:.65rem;color:#1e293b;
  text-align:center;padding:20px;
  border-top:1px solid var(--border-dim);
  margin-left:110px; /* align with content pane */
}
.nb-footer a{color:var(--cyan-dim);text-decoration:none}
.nb-footer a:hover{color:var(--cyan)}

/* ── SCROLL REVEAL ── */
.reveal{opacity:0;transform:translateY(14px);transition:opacity .5s,transform .5s}
.reveal.visible{opacity:1;transform:translateY(0)}

/* ── IFRAME PANEL ── */
#km-panel{
  display:none;position:fixed;
  top:46px;left:0;right:0;bottom:0;
  z-index:20;background:var(--bg);
}
#km-panel.active{display:block}
#km-panel iframe{width:100%;height:100%;border:none;display:block}

/* ── SIDEBAR OVERLAY ── */
.sidebar-overlay{
  display:none;
  position:fixed;inset:0;z-index:45;
  background:rgba(0,6,20,.72);
  backdrop-filter:blur(2px);
  -webkit-backdrop-filter:blur(2px);
}

/* ── TOPBAR SCROLL WRAPPER ── */
.topbar-scroll{
  display:flex;flex:1;height:100%;min-width:0;
}

/* ── KNOWLEDGE MAP: hide sidebar on desktop, keep mob-menu accessible ── */
body.km-active .sidebar{transform:translateX(-100%)}
body.km-active .notebook{margin-left:0}
/* sidebar-close button */
.sidebar-close{
  display:none;margin-left:auto;
  align-items:center;justify-content:center;
  width:28px;height:28px;border-radius:4px;
  border:none;background:transparent;
  color:var(--text-dim);cursor:pointer;flex-shrink:0;
  transition:color .2s,background .2s;
}
.sidebar-close:hover{color:var(--text);background:#0f172a}
@media(max-width:900px){
  .sidebar-close{display:flex}
}

/* ── SCROLL TO TOP ── */
.scroll-top-btn{
  position:fixed;bottom:28px;right:28px;z-index:35;
  width:38px;height:38px;border-radius:6px;
  background:#00f0ff10;border:1px solid var(--cyan-dim);
  color:var(--cyan);cursor:pointer;
  display:flex;align-items:center;justify-content:center;
  opacity:0;pointer-events:none;
  transition:opacity .3s,background .2s,box-shadow .2s;
}
.scroll-top-btn.visible{opacity:1;pointer-events:auto}
.scroll-top-btn:hover{background:#00f0ff22;box-shadow:0 0 18px #00f0ff22}
body.km-active .scroll-top-btn{display:none}

/* ═══════════════════════════════════════
   RESPONSIVE
═══════════════════════════════════════ */
@media(max-width:900px){
  .sidebar{transform:translateX(-100%)}
  .sidebar.open{transform:translateX(0)}
  .sidebar-overlay.active{display:block}
  .notebook{margin-left:0}
  #km-panel{left:0}
  .blabel{width:70px;padding:16px 10px}
  .bl-id{font-size:.52rem}
  .term-content{padding:24px 24px}
  /* scrollable topbar */
  .topbar-scroll{
    overflow-x:auto;
    scrollbar-width:none;
    -webkit-overflow-scrolling:touch;
  }
  .topbar-scroll::-webkit-scrollbar{display:none}
  .topbar-tabs{flex-shrink:0}
  .topbar-actions{flex-shrink:0;border-left:1px solid var(--border)}
}
@media(max-width:600px){
  .blabel{display:none}
  .term-content{padding:20px 18px}
  .hero-cta-row{flex-direction:column}
  .how-grid-nb{grid-template-columns:1fr}
  .nb-footer{margin-left:0}
}
.mob-menu-btn{
  display:none;align-items:center;justify-content:center;
  width:46px;height:46px;
  border:none;background:transparent;color:var(--text-dim);cursor:pointer;
  border-right:1px solid var(--border);flex-shrink:0;
}
@media(max-width:900px){.mob-menu-btn{display:flex!important}}