:root{
  --bg:#0A0E23; --bg2:#101636; --surface:#151C42; --line:#26305E;
  --text:#E8ECFF; --muted:#8B93B8;
  --p1:#38BDF8; --p2:#34D399; --p3:#FBBF24; --p4:#FB923C; --p5:#A78BFA; --p6:#F472B6;
  --accent:#38BDF8; --pink:#F472B6;
  --disp:"Space Grotesk",sans-serif; --body:"Inter",sans-serif; --mono:"JetBrains Mono",monospace;
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{background:var(--bg);color:var(--text);font-family:var(--body);font-size:15px;line-height:1.55;display:flex;min-height:100vh}
#stars{position:fixed;inset:0;z-index:0;pointer-events:none}
kbd{background:var(--surface);border:1px solid var(--line);border-radius:5px;padding:1px 7px;font-family:var(--mono);font-size:12px}
.muted{color:var(--muted);font-weight:400}
.hidden{display:none!important}

/* ---------- sidebar ---------- */
.sidebar{position:sticky;top:0;height:100vh;width:210px;flex-shrink:0;z-index:5;
  background:rgba(16,22,54,.75);backdrop-filter:blur(12px);border-right:1px solid var(--line);
  display:flex;flex-direction:column;padding:22px 14px;gap:26px}
.logo{display:flex;align-items:center;gap:10px;cursor:pointer}
.logo b{font-family:var(--disp);font-size:17px;display:block;line-height:1.1}
.logo span{font-size:11px;color:var(--muted);letter-spacing:.08em}
.sidebar nav{display:flex;flex-direction:column;gap:6px}
.sidebar nav button{display:flex;align-items:center;gap:11px;padding:10px 13px;border:none;border-radius:11px;
  background:none;color:var(--muted);font:500 14px var(--body);cursor:pointer;text-align:left;transition:all .18s}
.sidebar nav button i{font-style:normal;width:18px;text-align:center;color:var(--accent)}
.sidebar nav button:hover{background:var(--surface);color:var(--text)}
.sidebar nav button.active{background:linear-gradient(90deg,rgba(56,189,248,.16),rgba(244,114,182,.10));color:var(--text);box-shadow:inset 0 0 0 1px rgba(56,189,248,.35)}
.save-status{margin-top:auto;font-size:11px;color:var(--muted);font-family:var(--mono)}

/* ---------- main ---------- */
#main{flex:1;position:relative;z-index:1;padding:38px 46px 90px;max-width:1160px}
.view{animation:fadeUp .45s ease both}
@keyframes fadeUp{from{opacity:0;transform:translateY(14px)}to{opacity:1;transform:none}}
.page-title{font-family:var(--disp);font-size:32px;margin-bottom:18px}
.page-title .muted{font-size:16px}
.section-title{font-family:var(--disp);font-size:21px;margin:34px 0 14px}

/* ---------- hero ---------- */
.hero{display:flex;gap:30px;align-items:center;justify-content:space-between;padding:26px 0 8px}
.eyebrow{font-family:var(--mono);font-size:12px;letter-spacing:.18em;text-transform:uppercase;color:var(--accent);margin-bottom:14px}
.hero h1{font-family:var(--disp);font-size:52px;line-height:1.04;letter-spacing:-.01em}
.grad{background:linear-gradient(92deg,var(--p1),var(--p5) 55%,var(--p6));-webkit-background-clip:text;background-clip:text;color:transparent}
.hero .sub{color:var(--muted);max-width:480px;margin:18px 0 24px}
.hero-actions{display:flex;gap:12px}
.btn{border:none;border-radius:12px;padding:12px 22px;font:600 14px var(--body);cursor:pointer;transition:transform .15s, box-shadow .15s}
.btn:hover{transform:translateY(-2px)}
.btn.primary{background:linear-gradient(92deg,var(--p1),#6366F1);color:#04102A;box-shadow:0 8px 24px rgba(56,189,248,.35)}
.btn.ghost{background:var(--surface);color:var(--text);box-shadow:inset 0 0 0 1px var(--line)}
.btn.small{padding:7px 14px;font-size:13px}
.hero-bot{position:relative}
.bot-float{animation:floaty 4.5s ease-in-out infinite}
@keyframes floaty{0%,100%{transform:translateY(0)}50%{transform:translateY(-10px)}}
.bot-eye{animation:blink 4s infinite}
@keyframes blink{0%,92%,100%{transform:scaleY(1)}95%{transform:scaleY(.08)}}
.bot-eye{transform-origin:center;transform-box:fill-box}
.bot-antenna{animation:glowPulse 2.2s ease-in-out infinite}
@keyframes glowPulse{0%,100%{opacity:1}50%{opacity:.35}}
.bot-arm-wave{transform-origin:167px 96px;animation:wave 3.4s ease-in-out infinite}
@keyframes wave{0%,70%,100%{transform:rotate(0)}78%{transform:rotate(-28deg)}88%{transform:rotate(10deg)}}
.token-stream{position:absolute;left:-70px;top:44%;width:70px;height:8px}
.token-stream span{position:absolute;font:600 10px var(--mono);color:var(--accent);opacity:0;animation:tok 2.6s linear infinite}
@keyframes tok{0%{left:0;opacity:0}15%{opacity:1}85%{opacity:1}100%{left:64px;opacity:0}}

/* ---------- stat cards ---------- */
.stats{display:grid;grid-template-columns:repeat(4,1fr);gap:14px;margin-top:26px}
.stat{background:var(--surface);border:1px solid var(--line);border-radius:16px;padding:18px;position:relative;overflow:hidden}
.stat b{font-family:var(--disp);font-size:30px;display:block}
.stat span{font-size:12.5px;color:var(--muted)}
.stat::after{content:"";position:absolute;inset:auto 0 0 0;height:3px;background:linear-gradient(90deg,var(--c,#38BDF8),transparent)}
.ring{width:64px;height:64px;position:absolute;right:14px;top:16px}
.ring circle{fill:none;stroke-width:6}
.ring .track{stroke:var(--line)}
.ring .bar{stroke:var(--p2);stroke-linecap:round;transform:rotate(-90deg);transform-origin:center;transition:stroke-dashoffset .8s ease}

/* ---------- week cards / roadmap ---------- */
.phase-block{margin-bottom:30px}
.phase-head{display:flex;align-items:center;gap:12px;margin:26px 0 12px}
.phase-dot{width:12px;height:12px;border-radius:50%;background:var(--c);box-shadow:0 0 14px var(--c)}
.phase-head h2{font-family:var(--disp);font-size:20px}
.week-card{background:var(--surface);border:1px solid var(--line);border-radius:16px;margin-bottom:12px;overflow:hidden;transition:border-color .2s}
.week-card:hover{border-color:var(--c)}
.week-head{display:flex;align-items:center;gap:16px;padding:16px 20px;cursor:pointer}
.wk-num{font-family:var(--mono);font-size:12px;color:var(--c);border:1px solid var(--c);border-radius:8px;padding:4px 9px;flex-shrink:0}
.week-head h3{font-family:var(--disp);font-size:17px;flex:1}
.wk-video{font-size:12.5px;color:var(--muted);display:flex;align-items:center;gap:6px;max-width:330px}
.wk-done{width:22px;height:22px;border-radius:7px;border:1.5px solid var(--line);background:none;cursor:pointer;color:transparent;flex-shrink:0;font-size:13px;line-height:1}
.wk-done.on{background:var(--p2);border-color:var(--p2);color:#04102A}
.chev{color:var(--muted);transition:transform .25s}
.week-card.open .chev{transform:rotate(90deg)}
.week-body{max-height:0;overflow:hidden;transition:max-height .4s ease}
.week-card.open .week-body{max-height:2600px}
.day{display:grid;grid-template-columns:96px 1fr;gap:14px;padding:16px 20px;border-top:1px solid var(--line)}
.day-label{font-family:var(--mono);font-size:12px;color:var(--c);padding-top:2px}
.day h4{font-size:14.5px;margin-bottom:5px}
.day .res{font-size:12.5px;color:var(--muted);margin-bottom:9px}
.prompt{background:var(--bg);border:1px solid var(--line);border-radius:10px;padding:11px 13px;position:relative}
.prompt pre{font:12px/1.6 var(--mono);white-space:pre-wrap;color:#B9C4F2;padding-right:56px}
.copy-btn{position:absolute;top:8px;right:8px;background:var(--surface);border:1px solid var(--line);color:var(--muted);
  border-radius:7px;padding:4px 9px;font:600 11px var(--body);cursor:pointer}
.copy-btn:hover{color:var(--text);border-color:var(--accent)}

/* ---------- present grid ---------- */
.present-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(240px,1fr));gap:14px;margin-top:22px}
.present-card{background:var(--surface);border:1px solid var(--line);border-radius:16px;padding:18px;cursor:pointer;transition:all .2s;position:relative;overflow:hidden}
.present-card:hover{transform:translateY(-4px);border-color:var(--c);box-shadow:0 14px 30px rgba(0,0,0,.35)}
.present-card .wk-num{margin-bottom:10px;display:inline-block}
.present-card h3{font-family:var(--disp);font-size:16px;margin-bottom:6px}
.present-card p{font-size:12.5px;color:var(--muted)}
.present-card::after{content:"▶";position:absolute;right:16px;bottom:12px;color:var(--c);opacity:0;transition:opacity .2s}
.present-card:hover::after{opacity:1}

/* ---------- slides ---------- */
.slides{position:fixed;inset:0;z-index:50;background:radial-gradient(1200px 700px at 70% -10%,#1B2350 0%,var(--bg) 55%);
  display:flex;align-items:center;justify-content:center}
.slide{max-width:900px;width:88%;animation:slideIn .35s ease both}
@keyframes slideIn{from{opacity:0;transform:translateX(26px)}to{opacity:1;transform:none}}
.slide .eyebrow{margin-bottom:20px}
.slide h1{font-family:var(--disp);font-size:56px;line-height:1.06;margin-bottom:22px}
.slide h2{font-family:var(--disp);font-size:40px;margin-bottom:22px}
.slide .big-res{color:var(--muted);font-size:17px;margin-bottom:26px}
.slide .prompt pre{font-size:14px}
.slide ul{list-style:none;font-size:20px;display:grid;gap:14px}
.slide ul li{padding-left:26px;position:relative}
.slide ul li::before{content:"→";position:absolute;left:0;color:var(--accent)}
.slides-nav{position:fixed;bottom:26px;left:50%;transform:translateX(-50%);display:flex;gap:16px;align-items:center;
  background:var(--surface);border:1px solid var(--line);border-radius:14px;padding:8px 14px}
.slides-nav button{background:none;border:none;color:var(--text);font-size:20px;cursor:pointer;padding:2px 10px}
.slides-nav span{font-family:var(--mono);font-size:12px;color:var(--muted)}
.slides-close{position:fixed;top:22px;right:26px;background:var(--surface);border:1px solid var(--line);color:var(--muted);
  border-radius:10px;padding:8px 14px;cursor:pointer;font:600 13px var(--body)}
.rec-dot{display:inline-block;width:12px;height:12px;border-radius:50%;background:#EF4444;margin-right:9px;animation:glowPulse 1.4s infinite}

/* ---------- playground ---------- */
.lab{display:grid;grid-template-columns:1.2fr 1fr;gap:16px;margin-top:20px;height:520px}
.lab-editor,.lab-out{background:var(--surface);border:1px solid var(--line);border-radius:16px;display:flex;flex-direction:column;overflow:hidden}
.lab-bar{display:flex;justify-content:space-between;align-items:center;padding:10px 14px;border-bottom:1px solid var(--line);font-size:13px;color:var(--muted)}
.lab-bar select{background:var(--bg);color:var(--text);border:1px solid var(--line);border-radius:8px;padding:6px 10px;font:500 13px var(--body)}
#code{flex:1;background:var(--bg);color:#CFE3FF;border:none;resize:none;padding:16px;font:13.5px/1.7 var(--mono);outline:none;tab-size:4}
#out{flex:1;padding:16px;font:13px/1.7 var(--mono);color:#9EF0C3;white-space:pre-wrap;overflow:auto}

/* ---------- timesheet ---------- */
.ts-summary{display:grid;grid-template-columns:repeat(4,1fr);gap:14px;margin-bottom:20px}
.ts-wrap{overflow-x:auto;border:1px solid var(--line);border-radius:16px;background:var(--surface)}
#tsTable{border-collapse:collapse;width:100%;min-width:900px;font-size:13px}
#tsTable th{background:var(--bg2);font:600 12px var(--body);color:var(--muted);padding:11px 8px;text-align:center;position:sticky;top:0}
#tsTable td{border-top:1px solid var(--line);padding:6px 8px;text-align:center}
#tsTable td.wklabel{text-align:left;padding-left:16px;font-weight:600;white-space:nowrap}
#tsTable td.wklabel small{display:block;color:var(--muted);font-weight:400}
#tsTable input{width:52px;background:var(--bg);border:1px solid var(--line);border-radius:8px;color:var(--text);
  padding:6px 4px;text-align:center;font:500 13px var(--body)}
#tsTable input:focus{outline:none;border-color:var(--accent)}
.ts-total{font-family:var(--mono);font-weight:600}
.pct{font-family:var(--mono);font-size:12px;padding:3px 8px;border-radius:7px;background:var(--bg)}
.pct.good{color:var(--p2)} .pct.mid{color:var(--p3)} .pct.low{color:var(--muted)}

/* ---------- concepts ---------- */
.concept{background:var(--surface);border:1px solid var(--line);border-radius:18px;padding:24px;margin-bottom:22px}
.concept-head h2{font-family:var(--disp);font-size:20px;margin-bottom:5px}
.concept-head p{color:var(--muted);font-size:13.5px;margin-bottom:18px;max-width:640px}
#nnCanvas{width:100%;max-width:860px;background:var(--bg);border-radius:12px}
.rag-flow{display:flex;align-items:center;gap:0;flex-wrap:wrap}
.rag-node{background:var(--bg);border:1px solid var(--line);border-radius:14px;padding:14px 18px;text-align:center;font-size:22px;min-width:88px}
.rag-node span{display:block;font-size:11.5px;color:var(--muted);margin-top:4px;font-family:var(--mono)}
.rag-node.db{border-color:var(--p3)}
.rag-arrow{flex:1;min-width:40px;height:2px;background:var(--line);position:relative;margin:0 6px}
.rag-arrow .dot{position:absolute;top:-3px;width:8px;height:8px;border-radius:50%;background:var(--p1);animation:flow 2.4s linear infinite}
.rag-arrow .d2{animation-delay:.4s;background:var(--p2)} .rag-arrow .d3{animation-delay:.8s;background:var(--p5)}
.rag-arrow .d4{animation-delay:1.2s;background:var(--p3)} .rag-arrow .d5{animation-delay:1.6s;background:var(--p6)}
@keyframes flow{0%{left:0;opacity:0}12%{opacity:1}88%{opacity:1}100%{left:calc(100% - 8px);opacity:0}}
.agent-loop{position:relative;width:300px;height:300px;margin:6px auto}
.loop-ring{position:absolute;inset:34px;border:2px dashed var(--line);border-radius:50%}
.loop-spark{position:absolute;top:-7px;left:calc(50% - 6px);width:12px;height:12px;border-radius:50%;background:var(--p1);
  box-shadow:0 0 16px var(--p1);transform-origin:6px 122px;animation:orbit 5s linear infinite}
@keyframes orbit{to{transform:rotate(360deg)}}
.loop-step{position:absolute;background:var(--bg);border:1px solid var(--line);border-radius:12px;padding:9px 15px;font-size:14px;font-weight:600}
.loop-step.s1{top:0;left:50%;transform:translateX(-50%)}
.loop-step.s2{bottom:26px;right:0}
.loop-step.s3{bottom:26px;left:0}
.ntp{background:var(--bg);border-radius:12px;padding:20px;display:grid;grid-template-columns:1fr 250px;gap:24px;align-items:center}
.ntp-text{font:600 20px/1.7 var(--mono);color:#CFE3FF;min-height:90px}
.ntp-text .cursor{display:inline-block;width:11px;height:22px;background:var(--p1);vertical-align:-3px;animation:glowPulse 1s infinite}
.ntp-bars{display:grid;gap:8px}
.ntp-bar{display:grid;grid-template-columns:70px 1fr 40px;gap:8px;align-items:center;font:12px var(--mono);color:var(--muted)}
.ntp-bar .fill{height:10px;border-radius:6px;background:linear-gradient(90deg,var(--p1),var(--p5));transition:width .5s ease}
.ntp-bar.win{color:var(--p2)}

@media(max-width:960px){
  body{flex-direction:column}
  .sidebar{position:fixed;bottom:0;top:auto;height:auto;width:100%;flex-direction:row;align-items:center;padding:8px 10px;border-top:1px solid var(--line);border-right:none}
  .logo div, .save-status{display:none}
  .sidebar nav{flex-direction:row;flex:1;justify-content:space-around}
  .sidebar nav button{flex-direction:column;gap:3px;font-size:10px;padding:6px}
  #main{padding:24px 18px 130px}
  .hero{flex-direction:column}
  .hero h1{font-size:38px}
  .stats,.ts-summary{grid-template-columns:1fr 1fr}
  .lab{grid-template-columns:1fr;height:auto}
  .lab-editor{height:320px}.lab-out{height:220px}
  .ntp{grid-template-columns:1fr}
  .slide h1{font-size:34px}.slide h2{font-size:26px}
}
@media(prefers-reduced-motion:reduce){
  *,*::before,*::after{animation-duration:.01ms!important;animation-iteration-count:1!important;transition-duration:.01ms!important}
}