*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
:root{
  --bg0:#04050a;--bg1:#08090f;--bg2:#0d1018;--bg3:#131720;--bg4:#1a1f2c;
  --border:rgba(255,255,255,0.06);--border2:rgba(255,255,255,0.11);
  --text:#edf0f8;--text2:#8a93ad;--text3:#424d68;
  --accent:#00e5ff;--blue:#0066ff;--glow:rgba(0,229,255,0.09);
  --green:#00ffaa;--purple:#a855f7;--orange:#ff8c00;--red:#ff3860;--yellow:#ffd000;--pink:#f472b6;
  --mono:'IBM Plex Mono',monospace;--sans:'IBM Plex Sans',sans-serif;
  --nav:54px;--topbar:50px;--vizw:228px;--qw:292px;
  /* quanta design tokens */
  --bg:var(--bg0);--bg-1:#070a12;--bg-2:#0a0e1a;--bg-3:#0d1322;
  --bg-card:rgba(13,19,34,0.55);--bg-card-h:rgba(16,24,42,0.85);
  --line:rgba(128,160,200,0.11);--line-soft:rgba(128,160,200,0.07);--line-strong:rgba(130,175,220,0.24);
  --txt:#cdd6e6;--txt-2:#8b97ad;--txt-dim:#5a6477;--txt-faint:#3a4254;
  --cyan:var(--accent);--cyan-d:#00b8cf;--cyan-glow:rgba(0,229,255,0.55);
  --ok:#2fe6a6;--warn:#f4c049;
  --r:10px;--r-s:7px;--ease:cubic-bezier(.22,.61,.36,1);
}
html,body{height:100%;overflow:hidden;background:var(--bg0);color:var(--text);font-family:var(--sans);font-size:14px}
::-webkit-scrollbar{width:4px;height:4px}::-webkit-scrollbar-track{background:transparent}::-webkit-scrollbar-thumb{background:var(--bg4);border-radius:4px}
/* ── MODAL SYSTEM ── */
.ov{position:fixed;inset:0;background:rgba(4,5,10,.95);z-index:800;display:none;align-items:center;justify-content:center;backdrop-filter:blur(12px)}
.ov.show{display:flex;animation:fadeIn .2s ease}
@keyframes fadeIn{from{opacity:0}to{opacity:1}}
.ocard{background:var(--bg1);border:1px solid var(--border2);border-radius:20px;overflow:hidden;box-shadow:0 40px 120px rgba(0,0,0,.9);animation:popUp .32s cubic-bezier(.34,1.56,.64,1)}
@keyframes popUp{from{opacity:0;transform:translateY(20px) scale(.95)}to{opacity:1;transform:translateY(0) scale(1)}}
/* ── QUANTA ONBOARDING ── */
.q-ambient{position:absolute;inset:0;z-index:0;overflow:hidden;pointer-events:none}
.q-grid{position:absolute;inset:-2px;background-image:linear-gradient(to right,rgba(128,160,200,0.045) 1px,transparent 1px),linear-gradient(to bottom,rgba(128,160,200,0.045) 1px,transparent 1px);background-size:46px 46px;-webkit-mask-image:radial-gradient(ellipse 90% 80% at 50% 42%,#000 35%,transparent 88%);mask-image:radial-gradient(ellipse 90% 80% at 50% 42%,#000 35%,transparent 88%)}
.q-glow{position:absolute;left:50%;top:44%;width:70vw;height:70vw;max-width:900px;max-height:900px;transform:translate(-50%,-50%);background:radial-gradient(circle,rgba(0,229,255,0.12) 0%,rgba(0,102,255,0.06) 32%,transparent 62%);filter:blur(8px);animation:glowPulse 9s var(--ease) infinite}
.q-glow.b{top:70%;left:22%;width:38vw;height:38vw;background:radial-gradient(circle,rgba(0,102,255,0.10) 0%,transparent 60%);animation-duration:13s;animation-delay:-3s}
@keyframes glowPulse{0%,100%{opacity:.55;transform:translate(-50%,-50%) scale(1)}50%{opacity:1;transform:translate(-50%,-50%) scale(1.08)}}
.q-point{position:absolute;width:3px;height:3px;border-radius:50%;background:var(--cyan);box-shadow:0 0 8px 1px var(--cyan-glow);opacity:0;animation:pointFade 11s ease-in-out infinite}
@keyframes pointFade{0%,100%{opacity:0}50%{opacity:.65}}
@media(prefers-reduced-motion:reduce){.q-glow,.q-point{animation:none}}
.q-shell{position:relative;z-index:2;width:min(720px,calc(100vw - 56px));max-height:calc(100vh - 56px);display:flex;flex-direction:column;background:linear-gradient(180deg,rgba(13,19,34,0.92),rgba(7,10,18,0.92));border:1px solid var(--line-strong);border-radius:14px;box-shadow:0 0 0 1px rgba(0,0,0,0.4),0 40px 120px -30px rgba(0,0,0,0.9),0 0 80px -20px rgba(0,102,255,0.18);backdrop-filter:blur(14px);overflow:hidden}
.q-shell::before{content:'';position:absolute;top:0;left:0;right:0;height:1px;background:linear-gradient(90deg,transparent,rgba(0,229,255,0.5),transparent);opacity:.6}
.q-head{display:flex;align-items:center;gap:13px;padding:17px 22px;border-bottom:1px solid var(--line);flex:none}
.q-orb{position:relative;width:30px;height:30px;border-radius:50%;background:radial-gradient(circle at 34% 30%,#9af3ff 0%,var(--cyan) 26%,var(--blue) 72%,#022 100%);box-shadow:0 0 0 1px rgba(0,229,255,0.35),0 0 18px 1px var(--cyan-glow),inset 0 0 8px rgba(255,255,255,0.25);flex:none;animation:orbPulse 4.5s var(--ease) infinite}
.q-orb::after{content:'';position:absolute;inset:-6px;border-radius:50%;border:1px solid rgba(0,229,255,0.18);animation:orbRing 4.5s var(--ease) infinite}
@keyframes orbPulse{0%,100%{box-shadow:0 0 0 1px rgba(0,229,255,0.35),0 0 16px 1px var(--cyan-glow),inset 0 0 8px rgba(255,255,255,0.25)}50%{box-shadow:0 0 0 1px rgba(0,229,255,0.5),0 0 26px 3px var(--cyan-glow),inset 0 0 10px rgba(255,255,255,0.35)}}
@keyframes orbRing{0%,100%{transform:scale(1);opacity:.5}50%{transform:scale(1.18);opacity:0}}
.q-orb.busy{animation-duration:1.3s}
@media(prefers-reduced-motion:reduce){.q-orb,.q-orb::after{animation:none}}
.q-wm{display:flex;flex-direction:column;gap:2px;line-height:1}
.q-wm b{font-size:14.5px;font-weight:600;letter-spacing:0.16em;color:#fff}
.q-wm span{font-size:10px;letter-spacing:0.22em;color:var(--txt-dim);text-transform:uppercase}
.q-status{margin-left:auto;display:flex;align-items:center;gap:8px;padding:5px 11px;border:1px solid var(--line);border-radius:100px;font-size:10.5px;letter-spacing:0.14em;text-transform:uppercase;color:var(--txt-2);background:rgba(0,0,0,0.25);white-space:nowrap}
.q-dot{width:6px;height:6px;border-radius:50%;background:var(--warn);box-shadow:0 0 8px 0 var(--warn);animation:dotBlink 1.6s steps(1) infinite}
.q-status.ready .q-dot{background:var(--ok);box-shadow:0 0 9px 0 var(--ok);animation:none}
.q-status.ready{color:var(--ok);border-color:rgba(47,230,166,0.3)}
@keyframes dotBlink{0%,60%{opacity:1}61%,100%{opacity:.25}}
.q-body{padding:24px 22px 4px;overflow-y:auto;flex:1 1 auto;scrollbar-width:thin;scrollbar-color:rgba(128,160,200,0.2) transparent}
.q-body::-webkit-scrollbar{width:8px}.q-body::-webkit-scrollbar-thumb{background:rgba(128,160,200,0.18);border-radius:8px}
.q-title{margin:0 0 24px}
.q-eyebrow{display:flex;align-items:center;gap:8px;font-size:10.5px;letter-spacing:0.26em;text-transform:uppercase;color:var(--cyan-d);margin-bottom:12px}
.q-eyebrow::before{content:'';width:16px;height:1px;background:var(--cyan-d);opacity:.6}
.q-title h1{margin:0 0 9px;font-size:21px;font-weight:500;letter-spacing:-0.01em;color:#f1f5fb}
.q-title p{margin:0;font-size:12.5px;line-height:1.65;color:var(--txt-2);max-width:50ch;text-wrap:pretty}
.q-sec{margin-bottom:22px}
.q-sec-label{display:flex;align-items:baseline;gap:10px;font-size:10.5px;letter-spacing:0.2em;text-transform:uppercase;color:var(--txt-dim);margin-bottom:12px}
.q-sec-label .idx{color:var(--cyan-d)}
.q-sec-label .rule{flex:1;height:1px;background:var(--line);align-self:center}
.q-sec-label .req{font-size:9px;letter-spacing:0.18em;color:var(--txt-faint);border:1px solid var(--line);border-radius:4px;padding:2px 6px}
.q-grid-cards{display:grid;gap:10px}
.q-grid-cards.cols-3{grid-template-columns:repeat(3,1fr)}
.q-grid-cards.cols-4{grid-template-columns:repeat(4,1fr)}
.q-card{position:relative;text-align:left;display:flex;flex-direction:column;gap:9px;padding:14px 14px 13px;background:var(--bg-card);border:1px solid var(--line);border-radius:var(--r);cursor:pointer;font-family:inherit;color:var(--txt);transition:border-color .2s var(--ease),background .2s var(--ease),transform .2s var(--ease),box-shadow .25s var(--ease);overflow:hidden}
.q-card:hover{border-color:var(--line-strong);background:var(--bg-card-h);transform:translateY(-1px)}
.q-card:focus-visible{outline:none;border-color:var(--cyan)}
.q-card .q-mark{width:30px;height:30px;display:flex;align-items:center;justify-content:center;color:var(--txt-2);border:1px solid var(--line);border-radius:8px;background:rgba(0,0,0,0.2);transition:color .2s,border-color .2s,box-shadow .25s}
.q-card .q-mark svg{width:16px;height:16px;display:block}
.q-card h3{margin:0;font-size:14px;font-weight:500;letter-spacing:0.01em;color:#e7edf6}
.q-card p{margin:0;font-size:11px;line-height:1.5;color:var(--txt-dim)}
.q-card .q-tick{position:absolute;top:13px;right:13px;width:7px;height:7px;border-radius:50%;border:1px solid var(--line-strong);background:transparent;transition:all .2s var(--ease)}
.q-card.sel{border-color:var(--cyan);background:linear-gradient(180deg,rgba(0,229,255,0.08),rgba(0,102,255,0.04));box-shadow:0 0 0 1px rgba(0,229,255,0.4),0 0 26px -6px var(--cyan-glow)}
.q-card.sel .q-mark{color:var(--cyan);border-color:rgba(0,229,255,0.5);box-shadow:0 0 16px -4px var(--cyan-glow)}
.q-card.sel h3{color:#fff}
.q-card.sel .q-tick{background:var(--cyan);border-color:var(--cyan);box-shadow:0 0 9px 0 var(--cyan-glow)}
.q-card.sel::after{content:'';position:absolute;inset:0;background:linear-gradient(90deg,transparent,rgba(0,229,255,0.07),transparent);transform:translateX(-100%);animation:sweep .6s var(--ease) 1}
@keyframes sweep{to{transform:translateX(100%)}}
.q-foot{display:flex;align-items:center;gap:18px;padding:15px 22px;border-top:1px solid var(--line);flex:none;background:rgba(4,5,10,0.4)}
.q-readout{display:flex;flex-direction:column;gap:4px;font-size:10.5px;letter-spacing:0.06em;flex:1;min-width:0}
.q-ro-line{display:flex;align-items:center;gap:8px;color:var(--txt-dim);white-space:nowrap}
.q-ro-line .k{color:var(--txt-dim)}.q-ro-line .arrow{color:var(--cyan-d)}.q-ro-line .v{color:var(--txt-faint)}
.q-ro-line.set .v{color:var(--cyan)}.q-ro-line.set .k{color:var(--txt-2)}
.q-cursor{display:inline-block;width:7px;height:13px;background:var(--cyan);margin-left:1px;animation:cur 1s steps(1) infinite;vertical-align:-2px}
@keyframes cur{50%{opacity:0}}
.q-cta{display:inline-flex;align-items:center;gap:10px;padding:12px 20px;font-family:inherit;font-size:12.5px;font-weight:500;letter-spacing:0.08em;text-transform:uppercase;border-radius:9px;border:1px solid var(--line);background:rgba(255,255,255,0.02);color:var(--txt-dim);cursor:not-allowed;white-space:nowrap;transition:all .22s var(--ease);flex:none}
.q-cta .arr{transition:transform .2s var(--ease)}
.q-cta.on{cursor:pointer;color:#021016;background:linear-gradient(180deg,#4af1ff,var(--cyan));border-color:var(--cyan);box-shadow:0 0 0 1px rgba(0,229,255,0.4),0 8px 30px -8px var(--cyan-glow)}
.q-cta.on:hover{transform:translateY(-1px);box-shadow:0 0 0 1px rgba(0,229,255,0.6),0 12px 36px -8px var(--cyan-glow)}
.q-cta.on:hover .arr{transform:translateX(3px)}
.q-cta.on:active{transform:translateY(0)}
.q-auth-links{display:flex;gap:12px;justify-content:center;font-family:var(--mono);font-size:11px}
.q-auth-links span{color:var(--txt-dim);cursor:pointer;transition:color .15s}.q-auth-links span:hover{color:var(--cyan)}
.q-auth-links .sep{color:var(--line-strong);pointer-events:none;cursor:default}
.q-bar{display:flex;align-items:center;padding:7px 18px;font-size:9.5px;letter-spacing:0.1em;text-transform:uppercase;color:var(--txt-faint);border-top:1px solid var(--line-soft);background:linear-gradient(90deg,rgba(0,102,255,0.05),transparent);flex:none}
.q-bar span{padding:0 11px;border-right:1px solid var(--line-soft)}.q-bar span:first-child{padding-left:0}.q-bar span:last-child{border-right:none;margin-left:auto}
.q-bar .tqx{color:var(--cyan-d)}
.q-init{position:absolute;inset:0;z-index:5;background:rgba(4,5,10,0.92);backdrop-filter:blur(6px);display:flex;flex-direction:column;align-items:center;justify-content:center;gap:22px;padding:30px;opacity:0;pointer-events:none;transition:opacity .3s var(--ease)}
.q-init.show{opacity:1;pointer-events:auto}
.q-init .orb-xl{width:64px;height:64px;border-radius:50%;background:radial-gradient(circle at 34% 30%,#9af3ff 0%,var(--cyan) 28%,var(--blue) 74%,#022 100%);box-shadow:0 0 40px 2px var(--cyan-glow),inset 0 0 14px rgba(255,255,255,0.3);animation:orbPulse 1.2s var(--ease) infinite}
.q-init .log{width:min(420px,100%);font-size:11.5px;line-height:1.9;color:var(--txt-2)}
.q-init .log .ln{opacity:0;transition:opacity .25s;display:flex;gap:9px}
.q-init .log .ln.in{opacity:1}
.q-init .log .ok{color:var(--ok)}.q-init .log .ar{color:var(--cyan)}
.q-reconf{font-family:inherit;font-size:10.5px;letter-spacing:.12em;text-transform:uppercase;color:var(--txt-dim);background:none;border:1px solid var(--line);border-radius:7px;padding:9px 16px;cursor:pointer;transition:all .2s}
.q-reconf:hover{color:var(--cyan);border-color:var(--line-strong)}
@media(max-height:480px) and (min-width:600px){.q-shell{width:calc(100vw - 28px);max-width:980px;max-height:calc(100vh - 22px)}.q-head{padding:11px 18px}.q-body{padding:15px 18px 2px;display:grid;grid-template-columns:1fr 1.45fr;grid-template-areas:"title title" "id goal";column-gap:22px;row-gap:0;align-content:start}.q-title{grid-area:title;margin-bottom:12px}.q-title h1{font-size:16px;margin-bottom:5px}.q-title p{font-size:11px;line-height:1.5;max-width:none}.q-sec.s-id{grid-area:id;margin-bottom:6px}.q-sec.s-goal{grid-area:goal;margin-bottom:6px}.q-grid-cards.cols-3{grid-template-columns:1fr}.q-grid-cards.cols-4{grid-template-columns:1fr 1fr}.q-card{flex-direction:row;align-items:center;padding:9px 11px;gap:10px}.q-card .q-mark{width:26px;height:26px}.q-card .txt-wrap{min-width:0}.q-card h3{font-size:12.5px}.q-card p{display:none}.q-card .q-tick{top:50%;transform:translateY(-50%);right:11px}.q-foot{padding:9px 18px}}
@media(max-width:600px){.q-shell{width:100vw;max-width:none;height:100vh;max-height:none;border-radius:0;border-left:none;border-right:none}.q-head{padding:15px 18px}.q-status{padding:5px 9px;font-size:9.5px}.q-body{padding:22px 18px 4px}.q-title h1{font-size:19px}.q-title p{font-size:12px}.q-grid-cards.cols-3{grid-template-columns:1fr}.q-grid-cards.cols-4{grid-template-columns:1fr 1fr}.q-card{flex-direction:row;align-items:center;gap:12px;padding:13px 13px}.q-card .q-mark{width:32px;height:32px}.q-card .q-tick{top:50%;transform:translateY(-50%);right:13px}.q-foot{flex-direction:column;align-items:stretch;gap:13px;padding:15px 18px}.q-cta{justify-content:center;width:100%;padding:15px}.q-readout{order:2}.q-bar{font-size:9px}.q-bar span:nth-child(3){display:none}}
/* ── AUTH CARD ── */
.auth-card{width:430px}
.a-tabs{display:flex;border-bottom:1px solid var(--border)}
.a-tab{flex:1;height:46px;display:flex;align-items:center;justify-content:center;font-family:var(--mono);font-size:12px;font-weight:500;cursor:pointer;color:var(--text3);border-bottom:2px solid transparent;transition:all .15s}
.a-tab:hover{color:var(--text2);background:rgba(255,255,255,.02)}.a-tab.on{color:var(--accent);border-bottom-color:var(--accent);background:var(--glow)}
.a-panel{display:none;padding:24px 28px 28px}.a-panel.on{display:block}
.a-head{display:flex;align-items:center;gap:10px;margin-bottom:20px}
.a-orb{width:32px;height:32px;border-radius:50%;background:radial-gradient(circle at 35% 35%,rgba(0,229,255,.8),rgba(0,102,255,.35));border:1px solid rgba(0,229,255,.5);position:relative;flex-shrink:0}
.a-orb::after{content:'';position:absolute;inset:5px;border-radius:50%;background:radial-gradient(circle at 40% 30%,rgba(255,255,255,.4),transparent)}
.a-ht{font-family:var(--mono);font-size:14px;font-weight:600;color:var(--text)}.a-ht span{color:var(--accent)}
.a-st{font-size:11px;color:var(--text2);margin-top:2px}
.afield{margin-bottom:12px}
.afield label{display:block;font-family:var(--mono);font-size:10px;color:var(--text3);margin-bottom:5px;letter-spacing:.6px;text-transform:uppercase}
.ainp{width:100%;height:40px;background:var(--bg2);border:1.5px solid var(--border2);border-radius:8px;padding:0 13px;font-family:var(--mono);font-size:12px;color:var(--text);outline:none;transition:border-color .15s}
.ainp:focus{border-color:rgba(0,229,255,.55)}.ainp::placeholder{color:var(--text3)}.ainp.bad{border-color:var(--red)}
.pw-wr{position:relative}.pw-wr .ainp{padding-right:38px}
.eye{position:absolute;right:11px;top:50%;transform:translateY(-50%);cursor:pointer;color:var(--text3);font-size:15px;user-select:none}
.pw-bars{display:flex;gap:3px;margin-top:5px}.pw-bar{height:2px;flex:1;border-radius:1px;background:var(--bg4);transition:background .2s}
.pw-lbl{font-family:var(--mono);font-size:9px;margin-top:3px;color:var(--text3)}
.aerr{font-family:var(--mono);font-size:11px;color:var(--red);display:none;margin:8px 0 2px;padding:8px 11px;background:rgba(255,56,96,.08);border-radius:7px;border:1px solid rgba(255,56,96,.2)}
.aerr.on{display:block}
.a-btn{width:100%;height:42px;border-radius:9px;border:none;cursor:pointer;font-family:var(--mono);font-size:12px;font-weight:700;color:#000;margin-top:14px;transition:all .18s;letter-spacing:.3px;background:linear-gradient(135deg,var(--accent),var(--blue))}
.a-btn:hover{box-shadow:0 0 24px rgba(0,229,255,.45);transform:translateY(-1px)}
.a-or{display:flex;align-items:center;gap:10px;margin:14px 0;font-size:10px;color:var(--text3);font-family:var(--mono)}
.a-or::before,.a-or::after{content:'';flex:1;height:1px;background:var(--border)}
.a-skip{text-align:center;font-family:var(--mono);font-size:11px;color:var(--text3);cursor:pointer;transition:color .15s;display:block}
.a-skip:hover{color:var(--text2)}.a-skip b{color:var(--accent);font-weight:500}
/* ── SUB CARD ── */
.sub-card{width:460px}
.sub-top{padding:28px 28px 0;text-align:center}
.sub-ico{font-size:32px;margin-bottom:10px}
.sub-title{font-family:var(--mono);font-size:18px;font-weight:700;color:var(--text)}.sub-title span{color:var(--accent)}
.sub-sub{font-size:12px;color:var(--text2);margin-top:7px;line-height:18px}
.sub-body{padding:20px 28px 28px}
.plans{display:flex;gap:10px;margin-bottom:14px}
.plan{flex:1;border-radius:12px;border:1.5px solid var(--border);padding:16px;cursor:pointer;transition:all .18s;position:relative}
.plan:hover{border-color:rgba(0,229,255,.35);background:var(--glow)}.plan.sel{border-color:var(--accent);background:rgba(0,229,255,.07)}
.plan-badge{position:absolute;top:-10px;left:50%;transform:translateX(-50%);background:linear-gradient(135deg,var(--accent),var(--blue));color:#000;font-family:var(--mono);font-size:9px;font-weight:700;padding:3px 10px;border-radius:10px;white-space:nowrap}
.plan-name{font-family:var(--mono);font-size:12px;font-weight:600;color:var(--text);margin-bottom:4px}
.plan-price{font-family:var(--mono);font-size:24px;font-weight:700;color:var(--accent)}.plan-price span{font-size:11px;color:var(--text3)}
.plan-feats{font-size:10px;color:var(--text2);margin-top:8px;line-height:17px}
.plan-feats li{list-style:none;display:flex;align-items:center;gap:5px;margin-bottom:3px}
.plan-feats li::before{content:'✓';color:var(--green);font-size:10px;font-weight:700}
.sub-note{font-size:10px;color:var(--text3);text-align:center;margin-top:8px;font-family:var(--mono)}
.sub-btn{width:100%;height:42px;border-radius:9px;border:none;cursor:pointer;font-family:var(--mono);font-size:12px;font-weight:700;background:linear-gradient(135deg,var(--accent),var(--blue));color:#000;transition:all .18s}
.sub-btn:hover{box-shadow:0 0 24px rgba(0,229,255,.4);transform:translateY(-1px)}
.sub-skip{display:block;text-align:center;font-family:var(--mono);font-size:11px;color:var(--text3);margin-top:11px;cursor:pointer;transition:color .15s}
.sub-skip:hover{color:var(--accent)}
/* ── TOPBAR ── */
.topbar{position:fixed;top:0;left:0;right:0;height:var(--topbar);z-index:100;background:rgba(8,9,15,.96);border-bottom:1px solid var(--border);display:flex;align-items:center;justify-content:space-between;padding:0 18px;gap:12px;backdrop-filter:blur(20px)}
.logo{display:flex;align-items:center;gap:9px;text-decoration:none}
.lm{width:30px;height:30px;border-radius:8px;background:linear-gradient(135deg,var(--accent),var(--blue));display:flex;align-items:center;justify-content:center;font-family:var(--mono);font-size:11px;font-weight:700;color:#000;box-shadow:0 0 14px rgba(0,229,255,.3)}
.ln{font-family:var(--mono);font-size:13px;font-weight:600;color:var(--text)}.ln span{color:var(--accent)}
.breadcrumb{display:none;align-items:center;gap:6px;font-size:11px;color:var(--text3);font-family:var(--mono)}
.tab-row{display:flex;align-items:center;gap:3px}
.tbtn{height:30px;padding:0 14px;border-radius:7px;border:none;cursor:pointer;font-family:var(--mono);font-size:11px;background:transparent;color:var(--text3);transition:all .15s;display:flex;align-items:center;gap:5px}
.tbtn:hover{background:var(--bg3);color:var(--text2)}.tbtn.on{background:var(--bg3);color:var(--accent);font-weight:600}
.tdot{width:5px;height:5px;border-radius:50%;background:var(--accent)}
.run-btn{height:30px;padding:0 16px;border-radius:7px;border:none;cursor:pointer;font-family:var(--mono);font-size:11px;font-weight:700;color:#000;display:flex;align-items:center;gap:6px;transition:all .18s;background:linear-gradient(135deg,var(--accent),var(--blue))}
.run-btn:hover{box-shadow:0 0 18px rgba(0,229,255,.45);transform:translateY(-1px)}.run-btn:disabled{opacity:.3;cursor:not-allowed;transform:none;box-shadow:none}
.cpill{height:30px;padding:0 11px;border-radius:7px;border:1px solid var(--border2);background:var(--bg2);display:flex;align-items:center;gap:7px;font-family:var(--mono);font-size:11px;color:var(--text2)}
.cbar{width:42px;height:3px;background:var(--bg4);border-radius:2px;overflow:hidden}
.cfill{height:100%;background:var(--yellow);border-radius:2px;transition:width .3s,background .3s}
.avt{width:30px;height:30px;border-radius:50%;background:var(--bg3);border:1px solid var(--border2);display:flex;align-items:center;justify-content:center;font-size:11px;font-weight:700;cursor:pointer;color:var(--text2);font-family:var(--mono);transition:all .15s}
.avt.in{background:linear-gradient(135deg,var(--purple),var(--blue));border:none;color:#fff}
/* ── NAV RAIL ── */
.rail{position:fixed;left:0;top:var(--topbar);bottom:0;width:var(--nav);background:var(--bg1);border-right:1px solid var(--border);display:flex;flex-direction:column;align-items:center;padding:10px 0;z-index:90;gap:3px}
.ni{width:40px;height:40px;border-radius:10px;display:flex;align-items:center;justify-content:center;cursor:pointer;transition:all .15s;color:var(--text3);position:relative}
.ni:hover{background:var(--bg3);color:var(--text2)}.ni.on{background:rgba(0,229,255,.1);color:var(--accent)}
.ni svg{width:19px;height:19px}
.ntt{position:absolute;left:calc(100% + 9px);background:var(--bg4);border:1px solid var(--border2);border-radius:6px;padding:5px 9px;font-size:10px;color:var(--text);white-space:nowrap;pointer-events:none;opacity:0;transition:opacity .12s;font-family:var(--mono);z-index:200}
.ni:hover .ntt{opacity:1}.nsp{flex:1}
.nbadge{position:absolute;top:6px;right:6px;width:6px;height:6px;border-radius:50%;background:var(--green);box-shadow:0 0 6px var(--green)}
/* ── LAYOUT ── */
.layout{position:fixed;top:var(--topbar);left:var(--nav);right:0;bottom:22px;display:flex}
/* Full-panel overlay views (outside .layout) use same fixed coords to sit above it */
#shopView,#communityView,#pressView{position:fixed;top:var(--topbar);left:var(--nav);right:0;bottom:22px;z-index:2;background:var(--bg0)}
/* ── EXPLORER ── */
.expl{width:175px;background:var(--bg1);border-right:1px solid var(--border);display:flex;flex-direction:column;flex-shrink:0;overflow:hidden}
.ph{height:36px;display:flex;align-items:center;justify-content:space-between;padding:0 13px;border-bottom:1px solid var(--border);font-size:10px;font-weight:600;letter-spacing:1px;color:var(--text3);text-transform:uppercase;font-family:var(--mono)}
.pa{width:18px;height:18px;display:flex;align-items:center;justify-content:center;cursor:pointer;color:var(--text3);border-radius:4px}.pa:hover{background:var(--bg3);color:var(--text2)}.pa svg{width:11px;height:11px}
.ftree{overflow-y:auto;flex:1;padding:5px 0}
.ffold{display:flex;align-items:center;gap:5px;padding:5px 10px 5px 13px;font-size:11px;color:var(--text2);cursor:pointer;font-family:var(--mono)}
.ffold:hover{background:var(--bg2)}.ffold svg{width:11px;height:11px;color:var(--text3);flex-shrink:0}
.fitem{display:flex;align-items:center;gap:5px;padding:4px 8px 4px 22px;font-size:11px;color:var(--text2);cursor:pointer;font-family:var(--mono);border-left:2px solid transparent;transition:all .1s}
.fitem:hover{background:var(--bg2);color:var(--text)}.fitem.on{background:rgba(0,229,255,.07);color:var(--accent);border-left-color:var(--accent)}.fitem svg{width:10px;height:10px;flex-shrink:0}
/* ── CODE AREA ── */
.ework{flex:1;display:flex;flex-direction:column;overflow:hidden;min-width:0}
.etabs{height:36px;background:var(--bg1);border-bottom:1px solid var(--border);display:flex;align-items:flex-end;overflow-x:auto;flex-shrink:0}
.etab{height:36px;padding:0 15px;display:flex;align-items:center;gap:6px;font-family:var(--mono);font-size:11px;color:var(--text3);cursor:pointer;border-right:1px solid var(--border);white-space:nowrap;border-top:2px solid transparent;transition:all .15s}
.etab:hover{background:var(--bg2);color:var(--text2)}.etab.on{background:var(--bg0);color:var(--text);border-top-color:var(--accent)}
.etclose{width:14px;height:14px;border-radius:3px;display:flex;align-items:center;justify-content:center;color:var(--text3)}.etclose:hover{background:var(--bg4);color:var(--text)}.etclose svg{width:8px;height:8px}
/* Welcome state */
.ws{flex:1;display:flex;flex-direction:column;align-items:center;justify-content:center;background:var(--bg0);gap:8px}
.ws-orb{width:64px;height:64px;border-radius:50%;background:radial-gradient(circle at 35% 35%,rgba(0,229,255,.5),rgba(0,102,255,.2));border:1px solid rgba(0,229,255,.25);box-shadow:0 0 36px rgba(0,229,255,.15);position:relative;margin-bottom:4px;animation:pulse 3s infinite}
.ws-orb::after{content:'';position:absolute;inset:10px;border-radius:50%;background:radial-gradient(circle at 40% 30%,rgba(255,255,255,.3),transparent)}
.ws-title{font-family:var(--mono);font-size:17px;font-weight:700;color:var(--text)}.ws-title span{color:var(--accent)}
.ws-sub{font-size:12px;color:var(--text3);font-family:var(--mono)}
.ws-acts{display:flex;gap:9px;margin-top:10px}
.wbtn{height:34px;padding:0 18px;border-radius:8px;border:1.5px solid var(--border2);background:transparent;color:var(--text2);font-family:var(--mono);font-size:11px;cursor:pointer;transition:all .15s}
.wbtn:hover{border-color:var(--accent);color:var(--accent);background:var(--glow)}
.wbtn.pr{background:linear-gradient(135deg,var(--accent),var(--blue));color:#000;border:none;font-weight:700}
.wbtn.pr:hover{box-shadow:0 0 16px rgba(0,229,255,.4);transform:translateY(-1px)}
/* Code editor */
.epane{display:none;flex:1;flex-direction:column;overflow:hidden}
.ceditor{flex:1;background:var(--bg0);overflow:auto;display:flex}
.lnums{padding:16px 0;min-width:46px;text-align:right;background:var(--bg0);font-family:var(--mono);font-size:12px;line-height:23px;color:var(--text3);user-select:none;flex-shrink:0;border-right:1px solid var(--border);padding-right:10px;padding-left:8px}
.ccode{padding:16px 0 16px 16px;flex:1;font-family:var(--mono);font-size:12px;line-height:23px;white-space:pre;outline:none;min-height:100%;color:#cdd6f4}
/* ── CIRCUIT BUILDER ── */
.cpanel{height:210px;background:var(--bg1);border-top:1px solid var(--border);display:flex;flex-direction:column;flex-shrink:0}
.cp-head{height:42px;display:flex;align-items:center;justify-content:space-between;padding:0 16px;border-bottom:1px solid var(--border);flex-shrink:0}
.cp-title{font-family:var(--mono);font-size:12px;font-weight:700;color:var(--text);display:flex;align-items:center;gap:8px}
.cp-info{font-size:10px;color:var(--text3);font-weight:400}
.cp-actions{display:flex;align-items:center;gap:6px}
.cp-sel{height:28px;padding:0 10px;background:var(--bg3);border:1px solid var(--border2);border-radius:7px;font-family:var(--mono);font-size:11px;color:var(--text2);cursor:pointer;outline:none;appearance:none;padding-right:22px;background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='10' height='6'%3E%3Cpath d='M0 0l5 6 5-6z' fill='%23424d68'/%3E%3C/svg%3E");background-repeat:no-repeat;background-position:right 7px center;transition:border-color .15s}
.cp-sel:focus{border-color:rgba(0,229,255,.45)}
.cp-btn{height:28px;padding:0 12px;border-radius:7px;border:1px solid var(--border2);background:transparent;color:var(--text2);font-family:var(--mono);font-size:11px;cursor:pointer;transition:all .15s;white-space:nowrap}
.cp-btn:hover{border-color:var(--accent);color:var(--accent);background:var(--glow)}
.cp-btn.run{background:linear-gradient(135deg,var(--accent),var(--blue));color:#000;border:none;font-weight:700;padding:0 16px}
.cp-btn.run:hover{box-shadow:0 0 12px rgba(0,229,255,.4);transform:translateY(-1px)}
.cp-btn.clr{border-color:rgba(255,56,96,.4);color:var(--red)}.cp-btn.clr:hover{background:rgba(255,56,96,.08)}
/* Gate palette */
.gpal{display:flex;align-items:center;gap:6px;padding:8px 16px;border-bottom:1px solid var(--border);overflow-x:auto;flex-shrink:0}
.gpal-lbl{font-family:var(--mono);font-size:10px;color:var(--text3);letter-spacing:.5px;text-transform:uppercase;margin-right:4px;white-space:nowrap}
.gc{height:30px;padding:0 12px;border-radius:7px;border:1.5px solid;cursor:grab;font-family:var(--mono);font-size:12px;font-weight:700;display:flex;align-items:center;gap:5px;user-select:none;transition:all .15s;flex-shrink:0;white-space:nowrap;position:relative}
.gc:hover{transform:translateY(-2px);box-shadow:0 6px 16px rgba(0,0,0,.5)}.gc:active{cursor:grabbing;transform:none}
.gc .gt{font-size:9px;font-weight:400;opacity:.7;margin-left:1px}
.gH{background:rgba(0,229,255,.14);border-color:rgba(0,229,255,.55);color:var(--accent)}
.gX{background:rgba(255,56,96,.12);border-color:rgba(255,56,96,.55);color:var(--red)}
.gY{background:rgba(255,140,0,.12);border-color:rgba(255,140,0,.55);color:var(--orange)}
.gZ{background:rgba(168,85,247,.12);border-color:rgba(168,85,247,.55);color:var(--purple)}
.gS{background:rgba(0,255,170,.1);border-color:rgba(0,255,170,.5);color:var(--green)}
.gT{background:rgba(255,208,0,.1);border-color:rgba(255,208,0,.5);color:var(--yellow)}
.gCNOT{background:rgba(0,229,255,.1);border-color:rgba(0,229,255,.4);color:var(--accent)}
.gCCX{background:rgba(255,208,0,.1);border-color:rgba(255,208,0,.45);color:var(--yellow)}
.gM{background:rgba(168,85,247,.14);border-color:rgba(168,85,247,.55);color:var(--purple)}
/* Circuit wires */
.ccanvas{flex:1;overflow:auto;padding:10px 16px;position:relative}
.qrow{display:flex;align-items:center;margin-bottom:12px;height:42px}
.qlbl{font-family:var(--mono);font-size:11px;color:var(--text2);width:36px;flex-shrink:0;text-align:right;padding-right:8px}
.qww{flex:1;height:42px;position:relative;display:flex;align-items:center;cursor:pointer}
.qww:hover .qwire{background:rgba(0,229,255,.3);transition:background .1s}
.qwire{position:absolute;left:0;right:0;top:50%;height:2px;background:rgba(255,255,255,.1);border-radius:1px;transform:translateY(-50%)}
.dropz{position:absolute;width:34px;height:34px;border-radius:8px;border:2px dashed rgba(0,229,255,.55);background:rgba(0,229,255,.07);top:50%;transform:translateY(-50%);z-index:8;pointer-events:none;display:none}
.qww.dov .dropz{display:flex}
.wg{position:absolute;width:34px;height:34px;border-radius:8px;display:flex;align-items:center;justify-content:center;font-family:var(--mono);font-size:12px;font-weight:700;cursor:pointer;top:50%;transform:translateY(-50%);z-index:10;transition:all .15s}
.wg:hover{filter:brightness(1.3);transform:translateY(-50%) scale(1.08)}.wg.hl{box-shadow:0 0 0 2px var(--accent),0 0 14px rgba(0,229,255,.4)}
.wdel{position:absolute;top:-7px;right:-7px;width:15px;height:15px;border-radius:50%;background:var(--red);color:#fff;font-size:9px;display:flex;align-items:center;justify-content:center;opacity:0;transition:opacity .15s;cursor:pointer;z-index:20;font-family:var(--mono);font-weight:700}
.wg:hover .wdel{opacity:1}
.cnotln{position:absolute;width:2px;background:rgba(0,229,255,.45);z-index:5}
.cnotct{position:absolute;width:11px;height:11px;border-radius:50%;background:var(--accent);top:50%;transform:translate(-50%,-50%);z-index:15}
.cnottg{position:absolute;width:26px;height:26px;border-radius:50%;border:2px solid var(--accent);background:rgba(0,229,255,.1);top:50%;transform:translate(-50%,-50%);display:flex;align-items:center;justify-content:center;font-size:14px;color:var(--accent);z-index:15;font-family:var(--mono);font-weight:700}
.addq{display:flex;align-items:center;gap:5px;font-family:var(--mono);font-size:11px;color:var(--text3);cursor:pointer;padding:4px 6px;border-radius:6px;transition:all .1s;width:fit-content}
.addq:hover{color:var(--accent);background:var(--glow)}
/* Results bar */
.resbar{height:42px;background:var(--bg2);border-top:1px solid var(--border);display:none;align-items:center;gap:14px;padding:0 16px;font-family:var(--mono);font-size:11px;overflow-x:auto;flex-shrink:0}
.ri{display:flex;align-items:center;gap:6px;white-space:nowrap}
.rst{color:var(--accent);font-weight:700}.rbg{width:60px;height:8px;background:var(--bg4);border-radius:4px;overflow:hidden}
.rfl{height:100%;border-radius:4px;transition:width .7s}.rpct{color:var(--text2)}
/* ── VISUALIZER ── */
.vizpanel{width:var(--vizw);background:var(--bg1);border-left:1px solid var(--border);display:flex;flex-direction:column;overflow:hidden;flex-shrink:0}
.vizscroll{flex:1;overflow-y:auto;padding:11px;display:flex;flex-direction:column;gap:10px}
.vizbox{background:var(--bg2);border:1px solid var(--border);border-radius:10px;padding:12px;overflow:hidden}
.vt{font-family:var(--mono);font-size:9px;font-weight:700;letter-spacing:.8px;text-transform:uppercase;color:var(--text3);margin-bottom:10px;display:flex;align-items:center;gap:5px}
.vt-d{width:6px;height:6px;border-radius:50%}
/* Bloch sphere */
.bloch-lbl{font-family:var(--mono);font-size:10px;color:var(--text2);text-align:center;margin-top:6px}
/* Prob bars */
.prow{display:flex;align-items:center;gap:7px;margin-bottom:6px}
.pst{font-family:var(--mono);font-size:10px;color:var(--accent);width:30px;flex-shrink:0}
.pbg{flex:1;height:8px;background:var(--bg4);border-radius:4px;overflow:hidden}
.pbf{height:100%;border-radius:4px;transition:width .7s}
.ppc{font-family:var(--mono);font-size:10px;color:var(--text2);width:30px;text-align:right}
/* State info */
.state-info{font-family:var(--mono);font-size:11px;color:var(--text2);line-height:19px}
/* ── QUANTA SIDEBAR ── */
.qside{width:var(--qw);background:var(--bg1);border-left:1px solid var(--border);display:flex;flex-direction:column;flex-shrink:0;overflow:hidden}
.qhead{height:48px;border-bottom:1px solid var(--border);display:flex;align-items:center;justify-content:space-between;padding:0 14px;flex-shrink:0;background:linear-gradient(90deg,var(--bg1),var(--bg2))}
.qid{display:flex;align-items:center;gap:9px}
.qorb{width:26px;height:26px;border-radius:50%;background:radial-gradient(circle at 35% 35%,rgba(0,229,255,.75),rgba(0,102,255,.35));border:1px solid rgba(0,229,255,.5);box-shadow:0 0 10px rgba(0,229,255,.25);animation:pulse 3s infinite;position:relative}
.qorb::after{content:'';position:absolute;inset:4px;border-radius:50%;background:radial-gradient(circle at 40% 30%,rgba(255,255,255,.35),transparent)}
.qname{font-family:var(--mono);font-size:13px;font-weight:700;color:var(--text)}.qstat{font-size:10px;color:var(--green);font-family:var(--mono)}
.sbadge{height:18px;padding:0 8px;border-radius:4px;font-family:var(--mono);font-size:9px;font-weight:700;letter-spacing:.5px;text-transform:uppercase}
.sb-b{background:rgba(0,255,170,.1);color:var(--green);border:1px solid rgba(0,255,170,.25)}
.sb-i{background:rgba(0,229,255,.1);color:var(--accent);border:1px solid rgba(0,229,255,.25)}
.sb-e{background:rgba(168,85,247,.1);color:var(--purple);border:1px solid rgba(168,85,247,.25)}
.sb-g{background:rgba(66,77,104,.15);color:var(--text3);border:1px solid var(--border2)}
.qmode{height:32px;background:var(--bg2);border-bottom:1px solid var(--border);display:flex;align-items:center;padding:0 9px;gap:3px;flex-shrink:0}
.mb{height:23px;padding:0 9px;border-radius:5px;border:none;cursor:pointer;font-family:var(--mono);font-size:10px;background:transparent;color:var(--text3);transition:all .1s}
.mb.on{background:rgba(0,229,255,.1);color:var(--accent);font-weight:600}.mb:hover:not(.on){background:var(--bg3);color:var(--text2)}
/* Guided progress bar */
.guided-bar{padding:8px 12px;background:rgba(0,229,255,.04);border-bottom:1px solid var(--border);display:none}
.guided-label{font-family:var(--mono);font-size:9px;color:var(--text3);letter-spacing:.5px;text-transform:uppercase;margin-bottom:5px;display:flex;justify-content:space-between}
.guided-track{height:3px;background:var(--bg4);border-radius:2px;overflow:hidden}
.guided-fill{height:100%;background:linear-gradient(90deg,var(--accent),var(--blue));border-radius:2px;transition:width .5s}
/* Messages */
.qmsgs{flex:1;overflow-y:auto;padding:12px;display:flex;flex-direction:column;gap:10px}
.msg{display:flex;flex-direction:column;gap:4px}
.mmeta{display:flex;align-items:center;gap:5px;font-family:var(--mono);font-size:10px;color:var(--text3)}
.qn{color:var(--accent);font-weight:700}.un{color:var(--text2)}
.mb2{padding:10px 12px;border-radius:9px;font-size:12px;line-height:19px;color:var(--text)}
.mbq{background:var(--bg2);border:1px solid var(--border);border-left:2px solid var(--accent);border-radius:2px 9px 9px 2px}
.mbu{background:rgba(168,85,247,.1);border:1px solid rgba(168,85,247,.2);border-radius:9px 2px 2px 9px;align-self:flex-end;max-width:92%}
.muw{align-items:flex-end}
/* Step cards */
.step-card{background:var(--bg0);border:1px solid var(--border);border-radius:8px;padding:10px 12px;margin-top:6px}
.step-item{display:flex;align-items:flex-start;gap:8px;margin-bottom:7px}
.step-item:last-child{margin-bottom:0}
.step-num{width:18px;height:18px;border-radius:50%;background:linear-gradient(135deg,var(--accent),var(--blue));color:#000;font-family:var(--mono);font-size:9px;font-weight:700;display:flex;align-items:center;justify-content:center;flex-shrink:0;margin-top:1px}
.step-txt{font-size:12px;line-height:18px;color:var(--text2);flex:1}.step-txt strong{color:var(--text)}
/* Action buttons */
.macts{display:flex;gap:5px;flex-wrap:wrap;margin-top:4px}
.mab{height:23px;padding:0 9px;border-radius:5px;border:1px solid var(--border2);background:var(--bg3);color:var(--text2);font-family:var(--mono);font-size:10px;cursor:pointer;transition:all .1s}
.mab:hover{border-color:var(--accent);color:var(--accent);background:var(--glow)}
/* Project option cards */
.popts{display:flex;flex-direction:column;gap:6px}
.popt{padding:10px 12px;border-radius:9px;border:1px solid var(--border2);background:var(--bg3);cursor:pointer;transition:all .15s;display:flex;align-items:center;gap:10px}
.popt:hover{border-color:var(--accent);background:rgba(0,229,255,.07)}
.picon{width:28px;height:28px;border-radius:7px;display:flex;align-items:center;justify-content:center;font-size:15px;flex-shrink:0}
.pnm{font-family:var(--mono);font-size:11px;font-weight:700;color:var(--text)}.pds{font-size:10px;color:var(--text2);margin-top:1px}.ptag{font-family:var(--mono);font-size:9px;color:var(--text3);margin-top:2px}
/* Typing indicator */
.typing{display:flex;gap:4px;align-items:center;padding:6px 2px}
.ty{width:5px;height:5px;border-radius:50%;background:var(--accent);opacity:.4;animation:tyb 1.2s infinite}
.ty:nth-child(2){animation-delay:.2s}.ty:nth-child(3){animation-delay:.4s}
@keyframes tyb{0%,60%,100%{transform:translateY(0);opacity:.4}30%{transform:translateY(-5px);opacity:1}}
/* Auth banner */
.auth-ban{padding:9px 11px;border-radius:8px;background:rgba(0,229,255,.06);border:1px solid rgba(0,229,255,.2);display:flex;align-items:center;gap:8px}
.ab-t{font-size:11px;color:var(--text2);flex:1;line-height:16px}
.ab-b{height:23px;padding:0 10px;border-radius:5px;border:none;background:linear-gradient(135deg,var(--accent),var(--blue));color:#000;font-family:var(--mono);font-size:10px;font-weight:700;cursor:pointer;flex-shrink:0}
/* Input */
.qin{padding:10px;border-top:1px solid var(--border);flex-shrink:0}
.qiw{background:var(--bg2);border:1.5px solid var(--border2);border-radius:9px;display:flex;flex-direction:column;transition:border-color .15s}
.qiw:focus-within{border-color:rgba(0,229,255,.45)}
.qta{background:transparent;border:none;outline:none;padding:9px 11px;font-family:var(--mono);font-size:11px;color:var(--text);resize:none;min-height:36px;max-height:90px;line-height:19px}
.qta::placeholder{color:var(--text3)}
.qifoot{display:flex;align-items:center;justify-content:space-between;padding:4px 8px;border-top:1px solid var(--border)}
.itags{display:flex;gap:3px}
.itag{height:18px;padding:0 7px;border-radius:4px;border:1px solid var(--border);font-family:var(--mono);font-size:9px;color:var(--text3);background:var(--bg3);cursor:pointer;transition:all .1s;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;max-width:148px}
.itag:hover{border-color:var(--accent);color:var(--accent)}
.sbtn{width:24px;height:24px;border-radius:6px;border:none;cursor:pointer;background:linear-gradient(135deg,var(--accent),var(--blue));display:flex;align-items:center;justify-content:center;transition:all .15s}
.sbtn:hover{box-shadow:0 0 10px rgba(0,229,255,.4)}.sbtn svg{width:11px;height:11px;color:#000}
/* ── LEARN TAB ── */
.learn-view{display:none;flex:1;overflow:hidden}
.learn-layout{display:flex;height:100%}
.learn-nav{width:210px;background:var(--bg1);border-right:1px solid var(--border);overflow-y:auto;flex-shrink:0}
.ln-sec{font-family:var(--mono);font-size:9px;font-weight:700;letter-spacing:1px;text-transform:uppercase;color:var(--text3);padding:14px 16px 5px;margin-top:4px}
.lchap{padding:8px 16px 8px 22px;font-size:11px;font-family:var(--mono);color:var(--text2);cursor:pointer;border-left:2px solid transparent;transition:all .1s;display:flex;align-items:center;gap:7px;line-height:15px}
.lchap:hover{background:var(--bg2);color:var(--text)}.lchap.on{color:var(--accent);border-left-color:var(--accent);background:rgba(0,229,255,.05)}
.lchap .lnum{font-size:9px;color:var(--text3);min-width:18px}
.learn-content{flex:1;overflow-y:auto;padding:36px 44px;max-width:780px}
.lc-badge{display:inline-flex;align-items:center;gap:5px;height:22px;padding:0 11px;border-radius:11px;font-family:var(--mono);font-size:10px;font-weight:700;letter-spacing:.3px;margin-bottom:14px}
.l-beg{background:rgba(0,255,170,.1);color:var(--green);border:1px solid rgba(0,255,170,.3)}
.l-int{background:rgba(0,229,255,.1);color:var(--accent);border:1px solid rgba(0,229,255,.3)}
.l-adv{background:rgba(168,85,247,.1);color:var(--purple);border:1px solid rgba(168,85,247,.3)}
.lc-h1{font-family:var(--mono);font-size:28px;font-weight:700;color:var(--text);margin-bottom:7px;line-height:1.2}.lc-h1 span{color:var(--accent)}
.lc-intro{font-size:14px;color:var(--text2);margin-bottom:32px;line-height:22px;border-left:3px solid var(--accent);padding-left:16px}
.lc-h2{font-family:var(--mono);font-size:17px;font-weight:600;color:var(--text);margin:30px 0 12px}
.lc-p{font-size:13px;color:var(--text2);line-height:22px;margin-bottom:14px}.lc-p strong{color:var(--text)}
.lc-code{background:var(--bg2);border:1px solid var(--border);border-radius:10px;padding:16px 18px;font-family:var(--mono);font-size:11px;line-height:21px;color:#cdd6f4;margin:16px 0;overflow-x:auto;position:relative}
.lc-code::before{content:attr(data-lang);position:absolute;top:9px;right:13px;font-size:9px;color:var(--text3);text-transform:uppercase;letter-spacing:.5px}
.lc-note{background:rgba(0,229,255,.06);border:1px solid rgba(0,229,255,.2);border-radius:9px;padding:13px 15px;margin:16px 0;font-size:12px;color:var(--text2);line-height:20px;display:flex;gap:11px}
.lc-note::before{content:'💡';flex-shrink:0;font-size:14px}
.lc-warn{background:rgba(255,140,0,.07);border:1px solid rgba(255,140,0,.25);border-radius:9px;padding:13px 15px;margin:16px 0;font-size:12px;color:var(--text2);line-height:20px;display:flex;gap:11px}
.lc-warn::before{content:'⚠️';flex-shrink:0}
.formula{font-family:var(--mono);background:var(--bg3);border:1px solid var(--border);border-radius:7px;padding:9px 14px;display:inline-block;color:var(--accent);font-size:13px;margin:7px 0}
/* ── LEARN ENHANCEMENTS ── */
.ln-toggle{display:flex;align-items:center;justify-content:space-between;padding:11px 16px;border-bottom:1px solid var(--border);cursor:default}
.ln-toggle-title{font-family:var(--mono);font-size:10px;font-weight:700;letter-spacing:.8px;text-transform:uppercase;color:var(--text3)}
.ln-toggle-btn{width:24px;height:24px;border-radius:6px;border:1px solid var(--border2);background:var(--bg3);color:var(--text3);cursor:pointer;display:flex;align-items:center;justify-content:center;transition:all .15s;font-size:12px;padding:0}
.ln-toggle-btn:hover{border-color:var(--accent);color:var(--accent)}
.ln-progress{padding:10px 16px 6px;font-family:var(--mono);font-size:9px;color:var(--text3)}
.ln-pbar{height:2px;background:var(--bg4);border-radius:1px;overflow:hidden;margin:5px 0 0}
.ln-pfill{height:100%;background:linear-gradient(90deg,var(--accent),var(--blue));border-radius:1px;transition:width .4s}
.learn-nav.collapsed{width:40px;min-width:40px}
.learn-nav.collapsed .ln-sec,.learn-nav.collapsed .lchap,.learn-nav.collapsed .ln-progress{display:none}
.learn-nav.collapsed + .learn-content{max-width:none}
.learn-nav.collapsed .ln-toggle{justify-content:center;padding:11px 0}
.learn-nav.collapsed .ln-toggle-title{display:none}
.lchap.done .lnum::after{content:' ✓';color:var(--green);font-size:8px}
.lchap.locked{opacity:.38;pointer-events:none}
.lchap.quiz-gate{color:var(--purple);border-left-color:var(--purple);font-weight:700}
.lchap.quiz-gate:hover{background:rgba(168,85,247,.07);color:var(--purple)}
.lchap.quiz-gate.on{color:var(--purple);border-left-color:var(--purple);background:rgba(168,85,247,.07)}
.lchap.quiz-gate.done .lnum::after{content:' ✓';color:var(--green)}
.ln-xp{display:flex;align-items:center;justify-content:space-between;margin-top:7px;padding-top:7px;border-top:1px solid var(--border)}
.ln-xp-val{font-size:11px;font-weight:700;color:var(--accent);font-family:var(--mono);letter-spacing:.3px}
.ln-level{font-size:8px;color:var(--text3);font-family:var(--mono);text-transform:uppercase;letter-spacing:.5px;text-align:right;line-height:12px;max-width:110px}
.lc-section-quiz{padding:24px;background:rgba(168,85,247,.04);border:1px solid rgba(168,85,247,.2);border-radius:12px;margin:24px 0}
.lc-section-quiz-title{font-family:var(--mono);font-size:11px;font-weight:700;color:var(--purple);text-transform:uppercase;letter-spacing:.8px;margin-bottom:16px}
.lc-locked-msg{padding:32px;text-align:center;background:var(--bg2);border:1px solid var(--border);border-radius:12px;margin:48px auto;max-width:420px}
.lc-locked-icon{font-size:32px;margin-bottom:14px}
.lc-locked-title{font-family:var(--mono);font-size:16px;font-weight:700;color:var(--text);margin-bottom:8px}
.lc-locked-sub{font-size:12px;color:var(--text2);line-height:18px}
.lc-quiz{margin:32px 0 8px;padding:22px;background:rgba(0,229,255,.03);border:1px solid rgba(0,229,255,.15);border-radius:12px}
.lc-quiz-title{font-family:var(--mono);font-size:10px;font-weight:700;color:var(--accent);text-transform:uppercase;letter-spacing:.8px;margin-bottom:18px;display:flex;align-items:center;gap:8px}
.lq-q{font-size:13px;color:var(--text);font-weight:600;margin-bottom:10px;line-height:19px}
.lq-question{margin-bottom:20px}
.lq-opt{display:flex;align-items:center;gap:9px;padding:9px 13px;border-radius:8px;border:1px solid var(--border);cursor:pointer;margin-bottom:6px;font-size:12px;color:var(--text2);font-family:var(--mono);transition:all .15s;user-select:none}
.lq-opt:hover{border-color:rgba(0,229,255,.35);background:var(--glow);color:var(--text)}
.lq-opt.selected{border-color:var(--accent);background:rgba(0,229,255,.08);color:var(--text)}
.lq-opt.correct{border-color:var(--green)!important;background:rgba(0,255,170,.08)!important;color:var(--green)!important}
.lq-opt.wrong{border-color:var(--red)!important;background:rgba(255,56,96,.07)!important;color:var(--red)!important}
.lq-opt .lq-letter{width:18px;height:18px;border-radius:5px;background:var(--bg4);border:1px solid var(--border2);display:flex;align-items:center;justify-content:center;font-size:9px;font-weight:700;flex-shrink:0;transition:all .15s}
.lq-opt.selected .lq-letter{background:var(--accent);border-color:var(--accent);color:#000}
.lq-opt.correct .lq-letter{background:var(--green);border-color:var(--green);color:#000}
.lq-opt.wrong .lq-letter{background:var(--red);border-color:var(--red);color:#fff}
.lq-submit{height:36px;padding:0 22px;border-radius:8px;border:none;cursor:pointer;font-family:var(--mono);font-size:11px;font-weight:700;background:linear-gradient(135deg,var(--accent),var(--blue));color:#000;margin-top:10px;transition:all .18s}
.lq-submit:hover{box-shadow:0 0 14px rgba(0,229,255,.4);transform:translateY(-1px)}
.lq-submit:disabled{opacity:.4;cursor:not-allowed;transform:none;box-shadow:none}
.lq-result{margin-top:14px;padding:12px 14px;border-radius:9px;font-size:12px;font-family:var(--mono);line-height:18px}
.lq-result.pass{background:rgba(0,255,170,.07);border:1px solid rgba(0,255,170,.2);color:var(--green)}
.lq-result.fail{background:rgba(255,56,96,.06);border:1px solid rgba(255,56,96,.2);color:var(--red)}
.lq-result.partial{background:rgba(255,140,0,.07);border:1px solid rgba(255,140,0,.22);color:var(--orange)}
.lq-retry{height:30px;padding:0 16px;border-radius:7px;border:1px solid var(--border2);background:var(--bg3);color:var(--text2);font-family:var(--mono);font-size:10px;cursor:pointer;margin-top:8px;transition:all .15s}
.lq-retry:hover{border-color:var(--accent);color:var(--accent)}
.lc-next-btn{display:block;margin-top:12px;height:36px;padding:0 18px;border-radius:8px;border:none;cursor:pointer;font-family:var(--mono);font-size:11px;font-weight:700;background:linear-gradient(135deg,var(--accent),var(--blue));color:#000;transition:all .18s}
.lc-next-btn:hover{box-shadow:0 0 14px rgba(0,229,255,.4);transform:translateY(-1px)}
.lc-gate{padding:32px;background:var(--bg2);border:1px solid var(--border);border-radius:12px;margin:48px auto;max-width:480px}
.lc-gate-headline{font-family:var(--mono);font-size:15px;font-weight:700;color:var(--accent);margin-bottom:10px;line-height:1.4}
.lc-gate-body{font-size:13px;color:var(--text2);line-height:20px;margin-bottom:22px}
.lc-gate-cta{display:block;width:100%;height:42px;border-radius:9px;border:none;cursor:pointer;font-family:var(--mono);font-size:12px;font-weight:700;background:linear-gradient(135deg,var(--accent),var(--blue));color:#000;margin-bottom:10px;transition:all .18s}
.lc-gate-cta:hover{box-shadow:0 0 18px rgba(0,229,255,.45);transform:translateY(-1px)}
.lc-gate-secondary{display:block;width:100%;height:36px;border-radius:8px;border:1px solid var(--border2);background:transparent;color:var(--text2);font-family:var(--mono);font-size:11px;cursor:pointer;transition:all .15s}
.lc-gate-secondary:hover{border-color:var(--accent);color:var(--accent)}
/* ── STATUS BAR ── */
.sbar{position:fixed;bottom:0;left:0;right:0;height:22px;background:linear-gradient(90deg,var(--accent),var(--blue));display:flex;align-items:center;padding:0 14px;gap:16px;z-index:100}
.si{display:flex;align-items:center;gap:4px;font-family:var(--mono);font-size:10px;color:rgba(0,0,0,.7);cursor:pointer;white-space:nowrap}.si:hover{color:#000}.ssp{flex:1}
/* ── COACH CARD ── */
.qcoach{display:none;margin:10px 12px 0;padding:12px;border:1px solid rgba(0,229,255,.18);background:linear-gradient(180deg,rgba(0,229,255,.07),rgba(0,102,255,.035));border-radius:12px;box-shadow:0 10px 30px rgba(0,0,0,.25)}
.qcoach.on{display:block;animation:fadeIn .25s ease}
.qc-top{display:flex;align-items:center;justify-content:space-between;margin-bottom:8px}
.qc-title{font-family:var(--mono);font-size:10px;letter-spacing:.8px;text-transform:uppercase;color:var(--accent);font-weight:700}
.qc-close{border:0;background:transparent;color:var(--text3);cursor:pointer;font-family:var(--mono);font-size:12px}.qc-close:hover{color:var(--text)}
.qc-copy{font-size:11px;line-height:17px;color:var(--text2);margin-bottom:9px}.qc-copy strong{color:var(--text)}
.qc-grid{display:grid;grid-template-columns:1fr 1fr;gap:6px}.qc-btn{height:30px;border-radius:8px;border:1px solid var(--border2);background:rgba(255,255,255,.025);color:var(--text2);font-family:var(--mono);font-size:10px;cursor:pointer;transition:all .15s}.qc-btn:hover{border-color:var(--accent);color:var(--accent);background:var(--glow);transform:translateY(-1px)}
.startup-pill{display:inline-flex;align-items:center;gap:6px;height:22px;padding:0 9px;border-radius:999px;background:rgba(0,229,255,.08);border:1px solid rgba(0,229,255,.18);font-family:var(--mono);font-size:9px;color:var(--accent);margin:4px 4px 0 0}
.toast{position:fixed;left:50%;bottom:38px;transform:translateX(-50%);background:var(--bg4);border:1px solid var(--border2);border-radius:10px;color:var(--text);padding:10px 14px;font-family:var(--mono);font-size:11px;z-index:1200;box-shadow:0 14px 50px rgba(0,0,0,.45)}
/* ── PRODUCT HUB ── */
.hub-view{display:none;flex:1;overflow:auto;background:radial-gradient(circle at top left,rgba(0,229,255,.06),transparent 34%),var(--bg0)}
.hub-wrap{padding:30px 36px 46px;max-width:1120px;margin:0 auto}
.hub-hero{display:grid;grid-template-columns:1.35fr .85fr;gap:18px;margin-bottom:18px}
.hcard{background:rgba(13,16,24,.86);border:1px solid var(--border);border-radius:18px;padding:22px;box-shadow:0 24px 80px rgba(0,0,0,.26)}
.h-eyebrow{font-family:var(--mono);font-size:10px;letter-spacing:1.2px;text-transform:uppercase;color:var(--accent);font-weight:700;margin-bottom:10px}
.h-title{font-family:var(--mono);font-size:30px;line-height:1.15;font-weight:700;color:var(--text);max-width:760px}.h-title span{color:var(--accent)}
.h-copy{font-size:13px;line-height:22px;color:var(--text2);max-width:670px;margin-top:12px}
.h-actions{display:flex;gap:10px;flex-wrap:wrap;margin-top:18px}.hbtn{height:34px;padding:0 15px;border-radius:9px;border:1px solid var(--border2);background:var(--bg3);color:var(--text2);font-family:var(--mono);font-size:11px;font-weight:600;cursor:pointer;transition:all .15s}.hbtn:hover{border-color:var(--accent);color:var(--accent);background:var(--glow)}.hbtn.pr{background:linear-gradient(135deg,var(--accent),var(--blue));color:#000;border:none}.hbtn.pr:hover{box-shadow:0 0 18px rgba(0,229,255,.4);transform:translateY(-1px)}
.metric-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:10px}.metric{padding:14px;border-radius:13px;background:var(--bg2);border:1px solid var(--border)}.metric-num{font-family:var(--mono);font-size:22px;font-weight:700;color:var(--accent)}.metric-lbl{font-family:var(--mono);font-size:10px;color:var(--text3);margin-top:4px;text-transform:uppercase;letter-spacing:.7px}
.h-section{margin-top:22px}.h-sec-head{display:flex;align-items:flex-end;justify-content:space-between;margin-bottom:12px}.h2{font-family:var(--mono);font-size:16px;font-weight:700;color:var(--text)}.h-muted{font-size:12px;color:var(--text3)}
.template-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:12px}.tcard{background:var(--bg1);border:1px solid var(--border);border-radius:15px;padding:15px;cursor:pointer;transition:all .15s;min-height:150px}.tcard:hover{border-color:rgba(0,229,255,.45);background:rgba(0,229,255,.045);transform:translateY(-2px)}.ticon{width:34px;height:34px;border-radius:10px;display:flex;align-items:center;justify-content:center;margin-bottom:10px;background:rgba(0,229,255,.1);border:1px solid rgba(0,229,255,.24)}.tn{font-family:var(--mono);font-size:12px;font-weight:700;color:var(--text);margin-bottom:6px}.td{font-size:12px;line-height:18px;color:var(--text2)}.tags{display:flex;gap:5px;flex-wrap:wrap;margin-top:10px}.tag{height:19px;padding:0 7px;border-radius:10px;background:var(--bg3);border:1px solid var(--border);font-family:var(--mono);font-size:9px;color:var(--text3);display:flex;align-items:center}
.backend-grid{display:grid;grid-template-columns:1fr 1fr;gap:12px}.backend{display:flex;align-items:center;justify-content:space-between;gap:10px;background:var(--bg1);border:1px solid var(--border);border-radius:14px;padding:13px}.bname{font-family:var(--mono);font-size:12px;color:var(--text);font-weight:700}.bsub{font-family:var(--mono);font-size:10px;color:var(--text3);margin-top:3px}.status-pill{height:22px;padding:0 8px;border-radius:6px;font-family:var(--mono);font-size:9px;font-weight:700;display:flex;align-items:center}.ok{background:rgba(0,255,170,.1);color:var(--green);border:1px solid rgba(0,255,170,.25)}.sim{background:rgba(0,229,255,.1);color:var(--accent);border:1px solid rgba(0,229,255,.25)}
.doc-search{display:flex;gap:8px;margin-bottom:12px}.doc-search input{height:36px;flex:1;background:var(--bg2);border:1px solid var(--border2);border-radius:10px;padding:0 12px;color:var(--text);font-family:var(--mono);font-size:11px;outline:none}.doc-search input:focus{border-color:rgba(0,229,255,.5)}
.lesson-actions{display:flex;gap:8px;flex-wrap:wrap;margin:18px 0 10px;padding:12px;border-radius:12px;background:rgba(0,229,255,.045);border:1px solid rgba(0,229,255,.15)}.la-label{width:100%;font-family:var(--mono);font-size:10px;text-transform:uppercase;letter-spacing:.7px;color:var(--accent);font-weight:700}
@media(max-width:1100px){.hub-hero,.backend-grid{grid-template-columns:1fr}.template-grid{grid-template-columns:1fr 1fr}}
@media(max-width:780px){.template-grid{grid-template-columns:1fr}.hub-wrap{padding:20px}.h-title{font-size:24px}}
/* ── COMMUNITY HUB ── */
#communityView{display:none;flex:1;overflow:hidden;flex-direction:column}
.hub-layout{display:flex;height:100%;background:var(--bg0)}
.hub-sidebar{width:220px;background:var(--bg1);border-right:1px solid var(--border);display:flex;flex-direction:column;overflow:hidden;flex-shrink:0}
.hub-content{flex:1;display:flex;flex-direction:column;overflow:hidden;min-width:0}
.hub-right{width:210px;background:var(--bg1);border-left:1px solid var(--border);display:flex;flex-direction:column;overflow:hidden;flex-shrink:0}
.hub-ph{height:38px;display:flex;align-items:center;justify-content:space-between;padding:0 14px;border-bottom:1px solid var(--border);font-family:var(--mono);font-size:10px;font-weight:600;letter-spacing:1px;color:var(--text3);text-transform:uppercase;flex-shrink:0}
.hub-sec{font-family:var(--mono);font-size:9px;font-weight:700;letter-spacing:.9px;text-transform:uppercase;color:var(--text3);padding:12px 14px 4px}
.hub-ch{display:flex;align-items:center;gap:7px;padding:6px 14px 6px 20px;font-family:var(--mono);font-size:11px;color:var(--text2);cursor:pointer;transition:all .1s;border-left:2px solid transparent}
.hub-ch:hover{background:rgba(255,255,255,.03);color:var(--text)}.hub-ch.on{background:rgba(0,229,255,.07);color:var(--accent);border-left-color:var(--accent)}
.hub-ch-hash{color:var(--text3);font-size:12px}.hub-badge{margin-left:auto;background:var(--red);color:#fff;font-family:var(--mono);font-size:9px;font-weight:700;padding:1px 6px;border-radius:10px}
.hub-online{padding:10px 14px;border-top:1px solid var(--border)}
.hub-online-title{font-family:var(--mono);font-size:9px;color:var(--text3);margin-bottom:6px;letter-spacing:.5px;text-transform:uppercase}
.hub-member{display:flex;align-items:center;gap:7px;padding:3px 0;font-family:var(--mono);font-size:10px;color:var(--text2)}
.hub-ondot{width:6px;height:6px;border-radius:50%;background:var(--green);box-shadow:0 0 4px var(--green);flex-shrink:0}
.hub-topbar{height:50px;background:var(--bg1);border-bottom:1px solid var(--border);display:flex;align-items:center;justify-content:space-between;padding:0 20px;flex-shrink:0}
.hub-topbar-left{display:flex;align-items:center;gap:8px}
.hub-ch-name{font-family:var(--mono);font-size:13px;font-weight:600;color:var(--text)}
.hub-ch-desc{font-size:11px;color:var(--text3);margin-left:2px}
.hub-search{height:28px;padding:0 12px;border-radius:6px;border:1px solid var(--border2);background:var(--bg2);display:flex;align-items:center;gap:6px;font-family:var(--mono);font-size:11px;color:var(--text3);cursor:text}
.hub-share-btn{height:28px;padding:0 12px;border-radius:6px;border:1px solid rgba(0,229,255,.3);background:rgba(0,229,255,.07);color:var(--accent);font-family:var(--mono);font-size:11px;cursor:pointer;transition:all .15s}
.hub-share-btn:hover{background:rgba(0,229,255,.12);border-color:var(--accent)}
.hub-messages{flex:1;overflow-y:auto;padding:20px 22px;display:flex;flex-direction:column;gap:14px}
.hub-msg{display:flex;gap:12px;align-items:flex-start}
.hub-avatar{width:34px;height:34px;border-radius:50%;display:flex;align-items:center;justify-content:center;font-family:var(--mono);font-size:13px;font-weight:700;color:#fff;flex-shrink:0;margin-top:2px}
.hub-msg-body{flex:1;min-width:0}
.hub-msg-meta{display:flex;align-items:baseline;gap:9px;margin-bottom:4px}
.hub-msg-name{font-family:var(--mono);font-size:12px;font-weight:700;color:var(--text)}
.hub-msg-time{font-family:var(--mono);font-size:10px;color:var(--text3)}
.hub-msg-text{font-size:13px;color:var(--text2);line-height:20px}
.hub-code{background:var(--bg3);border:1px solid var(--border);border-radius:7px;padding:10px 13px;font-family:var(--mono);font-size:11px;color:#cdd6f4;margin-top:7px;overflow-x:auto;line-height:19px;position:relative}
.hub-code::before{content:'Python';position:absolute;top:7px;right:11px;font-size:9px;color:var(--text3);letter-spacing:.3px}
.hub-reactions{display:flex;flex-wrap:wrap;gap:5px;margin-top:7px}
.hub-rxn{display:inline-flex;align-items:center;gap:4px;padding:3px 8px;border-radius:10px;border:1px solid var(--border2);background:var(--bg3);font-size:11px;cursor:pointer;transition:all .12s}
.hub-rxn:hover{border-color:var(--accent);background:var(--glow)}
.hub-input-wrap{padding:14px 20px;border-top:1px solid var(--border);flex-shrink:0}
.hub-input-inner{background:var(--bg2);border:1.5px solid var(--border2);border-radius:10px;display:flex;align-items:flex-end;gap:10px;padding:0 14px;transition:border-color .15s}
.hub-input-inner:focus-within{border-color:rgba(0,229,255,.4)}
.hub-ta{background:transparent;border:none;outline:none;flex:1;font-family:var(--mono);font-size:12px;color:var(--text);resize:none;padding:12px 0;line-height:19px;max-height:80px}
.hub-ta::placeholder{color:var(--text3)}
.hub-send{width:30px;height:30px;border-radius:7px;border:none;cursor:pointer;background:linear-gradient(135deg,var(--accent),var(--blue));display:flex;align-items:center;justify-content:center;margin-bottom:10px;flex-shrink:0;transition:all .15s}
.hub-send:hover{box-shadow:0 0 10px rgba(0,229,255,.4)}
.hub-hint{font-family:var(--mono);font-size:9px;color:var(--text3);margin-top:5px}
.hub-pin{background:var(--bg2);border:1px solid var(--border);border-radius:8px;padding:10px 11px;margin-bottom:8px;cursor:pointer;transition:all .15s}
.hub-pin:hover{border-color:var(--accent)}.hub-pin-title{font-family:var(--mono);font-size:11px;font-weight:600;color:var(--text);margin-bottom:3px}.hub-pin-desc{font-size:10px;color:var(--text2)}
.hub-topic{height:26px;display:flex;align-items:center;padding:0 10px;border-radius:5px;font-family:var(--mono);font-size:10px;color:var(--text2);cursor:pointer;transition:all .1s;margin-bottom:3px}
.hub-topic:hover{background:var(--bg2);color:var(--accent)}
/* ── PAYWALL ── */
.paywall-overlay{position:fixed;inset:0;background:rgba(4,5,10,.97);z-index:700;display:none;align-items:center;justify-content:center;backdrop-filter:blur(16px)}
.paywall-overlay.show{display:flex}
.paywall-card{width:420px;background:var(--bg1);border:1px solid rgba(0,229,255,.25);border-radius:20px;padding:0;overflow:hidden;box-shadow:0 40px 100px rgba(0,0,0,.9);animation:popUp .3s cubic-bezier(.34,1.56,.64,1)}
.paywall-top{padding:36px 32px 24px;text-align:center;background:linear-gradient(180deg,rgba(0,229,255,.05) 0%,transparent 100%)}
.paywall-orb{width:60px;height:60px;border-radius:50%;margin:0 auto 16px;background:radial-gradient(circle at 35% 35%,rgba(0,229,255,.8),rgba(0,102,255,.35));border:1px solid rgba(0,229,255,.5);box-shadow:0 0 36px rgba(0,229,255,.4);position:relative;animation:pulse 3s infinite}
.paywall-orb::after{content:'';position:absolute;inset:9px;border-radius:50%;background:radial-gradient(circle at 40% 30%,rgba(255,255,255,.4),transparent)}
.paywall-title{font-family:var(--mono);font-size:20px;font-weight:700;color:var(--text);margin-bottom:8px}
.paywall-title span{color:var(--accent)}
.paywall-sub{font-size:13px;color:var(--text2);line-height:19px}
.paywall-counter{display:inline-flex;align-items:center;gap:6px;margin-top:10px;padding:6px 14px;border-radius:20px;background:rgba(255,56,96,.1);border:1px solid rgba(255,56,96,.3);font-family:var(--mono);font-size:11px;color:var(--red)}
.paywall-body{padding:24px 32px 32px}
.paywall-plans{display:flex;gap:10px;margin-bottom:16px}
.pw-plan{flex:1;border-radius:11px;border:1.5px solid var(--border);padding:14px;cursor:pointer;transition:all .18s;position:relative}
.pw-plan:hover{border-color:rgba(0,229,255,.35);background:var(--glow)}.pw-plan.sel{border-color:var(--accent);background:rgba(0,229,255,.07)}
.pw-badge{position:absolute;top:-9px;left:50%;transform:translateX(-50%);background:linear-gradient(135deg,var(--accent),var(--blue));color:#000;font-family:var(--mono);font-size:9px;font-weight:700;padding:2px 9px;border-radius:10px;white-space:nowrap}
.pw-plan-name{font-family:var(--mono);font-size:12px;font-weight:600;color:var(--text);margin-bottom:3px}
.pw-plan-price{font-family:var(--mono);font-size:22px;font-weight:700;color:var(--accent)}.pw-plan-price span{font-size:11px;color:var(--text3)}
.pw-feats{font-size:10px;color:var(--text2);margin-top:7px;line-height:16px}
.pw-feats li{list-style:none;display:flex;align-items:center;gap:4px;margin-bottom:2px}
.pw-feats li::before{content:'✓';color:var(--green);font-size:9px;font-weight:700}
.pw-main-btn{width:100%;height:44px;border-radius:10px;border:none;cursor:pointer;font-family:var(--mono);font-size:13px;font-weight:700;background:linear-gradient(135deg,var(--accent),var(--blue));color:#000;margin-bottom:10px;transition:all .18s}
.pw-main-btn:hover{box-shadow:0 0 24px rgba(0,229,255,.5);transform:translateY(-1px)}
.pw-signup-btn{width:100%;height:40px;border-radius:9px;border:1.5px solid var(--border2);background:transparent;color:var(--text2);font-family:var(--mono);font-size:12px;font-weight:600;cursor:pointer;transition:all .15s;margin-bottom:8px}
.pw-signup-btn:hover{border-color:var(--accent);color:var(--accent);background:var(--glow)}
.pw-dismiss{display:block;text-align:center;font-family:var(--mono);font-size:11px;color:var(--text3);cursor:pointer;margin-top:4px;transition:color .15s}
.pw-dismiss:hover{color:var(--text2)}

/* ── Resize handles (issue 7) ────────────────────────────────────────────── */
.resize-handle{width:4px;background:transparent;cursor:col-resize;flex-shrink:0;position:relative;z-index:50;transition:background .15s}
.resize-handle::after{content:'';position:absolute;inset:-3px 0;z-index:51}
.resize-handle:hover,.resize-handle.dragging{background:rgba(0,229,255,.35)}
.rhandle-v{height:5px;background:transparent;cursor:ns-resize;flex-shrink:0;position:relative;z-index:50;transition:background .15s}
.rhandle-v::after{content:'';position:absolute;inset:0 -3px;z-index:51}
.rhandle-v:hover,.rhandle-v.dragging{background:rgba(0,229,255,.35)}

/* ── Split-screen / narrow desktop (681–900px) ──────────────────────────── */
@media(max-width:900px) and (min-width:681px){
  /* Narrower sidebar panels to give code area breathing room */
  :root{--vizw:200px;--qw:268px}
  /* Onboarding: 4-col goal grid → 2×2 so cards have room to breathe */
  .q-grid-cards.cols-4{grid-template-columns:1fr 1fr}
  /* Learn content: tighter padding at split-screen widths */
  .learn-content{padding:28px 28px}
  /* Chip hard-stop: 110px max at narrow desktop */
  .itag{max-width:110px}
}

/* ── Mobile nav (hidden on desktop) ─────────────────────────────────────── */
.mob-viz-btn{display:none}
.mob-nav{display:none;position:fixed;bottom:0;left:0;right:0;height:56px;background:var(--bg2);border-top:1px solid var(--border);z-index:200;align-items:stretch}
.mn-item{flex:1;display:flex;flex-direction:column;align-items:center;justify-content:center;min-height:56px;background:none;border:none;color:var(--text3);font-family:var(--mono);font-size:10px;font-weight:600;cursor:pointer;transition:color .15s;gap:3px;padding:0}
.mn-item.on{color:var(--accent)}
.mn-item:active{background:var(--glow)}

/* ── Mobile layout ───────────────────────────────────────────────────────── */
@media (max-width:680px){
  .resize-handle,.rhandle-v{display:none !important}
  :root{--nav:0px}
  .rail{display:none !important}
  .sbar{display:none !important}
  .layout{left:0 !important;bottom:56px !important}
  #shopView,#communityView,#pressView{left:0 !important;bottom:56px !important}
  #explPanel{display:none !important}
  /* AI chat: full-screen slide-in from right.
     height uses dvh (dynamic viewport height) so the panel shrinks with the
     software keyboard on iOS 16+ / Chrome 108+. Older browsers fall back to
     the vh value on the line above it. */
  #qside{position:fixed !important;top:var(--topbar) !important;left:0 !important;right:0 !important;bottom:56px !important;width:100% !important;height:calc(100vh - var(--topbar) - 56px) !important;height:calc(100dvh - var(--topbar) - 56px) !important;transform:translateX(105%);transition:transform .28s ease;display:flex !important;z-index:150}
  #qside.mob-open{transform:translateX(0) !important}
  /* Visualizer: slide up from bottom */
  #vizPanel{position:fixed !important;bottom:56px !important;left:0 !important;right:0 !important;width:100% !important;height:340px !important;background:var(--bg1) !important;border-top:1px solid var(--border2) !important;transform:translateY(105%);transition:transform .28s ease;display:flex !important;z-index:140}
  #vizPanel.mob-open{transform:translateY(0) !important}
  /* Show mobile-only buttons */
  .mob-nav{display:flex}
  .mob-viz-btn{display:inline-flex !important;align-items:center;justify-content:center}
  /* Touch targets */
  .tbtn,.run-btn,.cp-btn,.hbtn,.a-btn,.sub-btn,.wbtn,.sbtn,.avt,.cp-sel,.gsel{min-height:44px !important}
  /* Hide top tab bar (replaced by bottom nav) */
  .tab-row{display:none !important}

  /* ── Modal width fixes: all fixed-width cards must fit 375px ── */
  .ocard{width:calc(100vw - 24px) !important;max-width:calc(100vw - 24px) !important}
  .sk-card{width:calc(100vw - 24px) !important}
  #authCard{width:calc(100vw - 24px) !important}
  #subCard{width:calc(100vw - 24px) !important}
  .paywall-card{width:calc(100vw - 24px) !important}
  .ocard{border-radius:14px !important}
  /* Reduce modal padding on small screens */
  .sk-body{padding:16px 20px 24px !important}
  .sk-top{padding:24px 20px 0 !important}
  .a-panel{padding:18px 20px 22px !important}
  .paywall-top{padding:24px 20px 18px !important}
  .paywall-body{padding:16px 20px 24px !important}
  /* Stack plan cards vertically */
  .plans,.paywall-plans{flex-direction:column !important;gap:8px !important}

  /* ── Topbar: hide breadcrumb and share button to save horizontal space ── */
  .breadcrumb{display:none !important}
  #shareBtn{display:none !important}

  /* ── Learn view: stack nav above content on small screens ── */
  .learn-layout{flex-direction:column !important}
  .learn-nav{width:100% !important;height:auto !important;max-height:140px;border-right:none !important;border-bottom:1px solid var(--border)}
  .learn-content{padding:20px !important;max-width:100% !important}
  .lc-h1{font-size:20px !important}

  /* ── Community view: hide sidebars, show only message area ── */
  .hub-sidebar{display:none !important}
  .hub-right{display:none !important}
  .hub-messages{padding:12px !important}
  .hub-input-wrap{padding:10px 12px !important}

  /* ── Circuit builder: reduce header padding on small screens ── */
  .cp-head{padding:0 8px !important}
  .gpal{padding:6px 8px !important}
  .ccanvas{padding:8px !important}

  /* ── Shop/Press: reduce padding ── */
  #shopView > div:first-child,#pressView > div:first-child{padding:18px 20px 0 !important}
  #shopView > div:last-child,#pressView > div:last-child{padding:0 20px 24px !important}

  /* ── Learn Quanta FAB: visible on mobile Learn tab only ── */
  #learnQuantaFAB.fab-visible{display:flex;position:fixed;bottom:70px;right:16px;z-index:145;align-items:center;gap:7px;background:var(--accent);color:#000;border:none;border-radius:24px;padding:11px 18px 11px 14px;font-size:13px;font-weight:700;font-family:var(--mono);cursor:pointer;box-shadow:0 4px 20px rgba(0,229,255,.35),0 2px 8px rgba(0,0,0,.4);letter-spacing:.3px;white-space:nowrap;transition:box-shadow .18s,transform .18s}
  #learnQuantaFAB.fab-visible:active{transform:scale(.96);box-shadow:0 2px 10px rgba(0,229,255,.25)}
}
/* ── Learn Quanta FAB: hidden on desktop (mobile-only above) ── */
#learnQuantaFAB{display:none}
/* ── ONBOARDING TOUR ── */
#tourOverlay{position:fixed;inset:0;background:rgba(4,5,10,.86);z-index:8500;display:none;transition:clip-path .38s cubic-bezier(.4,0,.2,1)}
#tourOverlay.active{display:block}
#tourRing{position:fixed;z-index:8501;pointer-events:none;border:2px solid var(--accent);border-radius:10px;box-shadow:0 0 0 1px rgba(0,229,255,.18),0 0 28px rgba(0,229,255,.4),inset 0 0 14px rgba(0,229,255,.06);display:none;transition:left .38s cubic-bezier(.4,0,.2,1),top .38s cubic-bezier(.4,0,.2,1),width .38s cubic-bezier(.4,0,.2,1),height .38s cubic-bezier(.4,0,.2,1)}
#tourRing.active{display:block}
#tourTooltip{position:fixed;z-index:8502;width:288px;background:var(--bg1);border:1px solid rgba(0,229,255,.28);border-radius:14px;padding:22px;box-shadow:0 28px 80px rgba(0,0,0,.9),0 0 0 1px rgba(0,229,255,.07);display:none;animation:tpop .28s cubic-bezier(.34,1.56,.64,1)}
#tourTooltip.active{display:block}
@keyframes tpop{from{opacity:0;transform:translateY(10px) scale(.96)}to{opacity:1;transform:translateY(0) scale(1)}}
.tour-hd{display:flex;justify-content:space-between;align-items:center;margin-bottom:9px}
.tour-title{font-family:var(--mono);font-size:13px;font-weight:700;color:var(--accent)}
.tour-step-num{font-family:var(--mono);font-size:10px;color:var(--text3)}
.tour-text{font-size:13px;color:var(--text2);line-height:1.6;margin-bottom:16px}
.tour-dots{display:flex;gap:5px;margin-bottom:18px}
.tour-dot{width:6px;height:6px;border-radius:50%;background:var(--bg4);transition:all .22s}
.tour-dot.active{width:18px;border-radius:3px;background:var(--accent);box-shadow:0 0 8px rgba(0,229,255,.5)}
.tour-actions{display:flex;justify-content:space-between;align-items:center}
.tour-skip{background:none;border:none;color:var(--text3);font-family:var(--mono);font-size:11px;cursor:pointer;padding:0;transition:color .15s}.tour-skip:hover{color:var(--text2)}
.tour-next{background:linear-gradient(135deg,var(--accent),var(--blue));border:none;border-radius:8px;color:#000;font-family:var(--mono);font-size:12px;font-weight:700;padding:9px 18px;cursor:pointer;transition:all .18s;letter-spacing:.2px}.tour-next:hover{box-shadow:0 0 22px rgba(0,229,255,.48);transform:translateY(-1px)}
/* ── Quanta typing indicator ── */
.typing-dots{display:flex;gap:4px;align-items:center;padding:4px 0}
.typing-dots span{width:6px;height:6px;border-radius:50%;background:var(--accent);opacity:0.4;animation:tdot 1.2s infinite}
.typing-dots span:nth-child(2){animation-delay:0.2s}
.typing-dots span:nth-child(3){animation-delay:0.4s}
@keyframes tdot{0%,80%,100%{opacity:0.4;transform:scale(1)}40%{opacity:1;transform:scale(1.2)}}
/* ── Quanta status pulse ── */
.qstatus{display:inline-block;width:7px;height:7px;border-radius:50%;background:var(--green);box-shadow:0 0 0 0 rgba(0,255,170,.4);animation:qpulse 2s infinite;vertical-align:middle;margin-right:2px}
@keyframes qpulse{0%{box-shadow:0 0 0 0 rgba(0,255,170,.4)}70%{box-shadow:0 0 0 6px rgba(0,255,170,0)}100%{box-shadow:0 0 0 0 rgba(0,255,170,0)}}

/* ── LIGHT THEME ── */
[data-theme="light"]{
  --bg0:#f8f9fc;--bg1:#ffffff;--bg2:#f0f3f8;--bg3:#e6eaf2;--bg4:#d4d9e6;
  --border:rgba(0,0,0,.09);--border2:rgba(0,0,0,.14);
  --text:#1a1d28;--text2:#4a5070;--text3:#8a90a8;
  --glow:rgba(0,102,255,.07);
}
[data-theme="light"] .topbar{background:rgba(248,249,252,.97)}
[data-theme="light"] .rail{background:#ffffff}
[data-theme="light"] .ocard{background:#ffffff}
[data-theme="light"] .ceditor,[data-theme="light"] .ws{background:var(--bg0)}
[data-theme="light"] .ccode{color:#24292f;background:var(--bg0)}
[data-theme="light"] .lnums{background:var(--bg2);border-right-color:var(--border)}
[data-theme="light"] .cpanel{background:var(--bg1)}
[data-theme="light"] .vizpanel,[data-theme="light"] #vizPanel{background:var(--bg1)}
[data-theme="light"] .expl,[data-theme="light"] #explPanel{background:#ffffff}
[data-theme="light"] .qside,[data-theme="light"] #qside{background:#ffffff}

/* ── SETTINGS MODAL ── */
.sett-card{width:400px;padding:0;max-height:calc(100vh - 80px);display:flex;flex-direction:column}
.sett-header{display:flex;justify-content:space-between;align-items:center;padding:20px 24px 16px;border-bottom:1px solid var(--border);flex-shrink:0}
.sett-body{padding:18px 24px 24px;overflow-y:auto}
.sett-sec-lbl{font-family:var(--mono);font-size:10px;color:var(--text3);text-transform:uppercase;letter-spacing:.6px;margin-bottom:10px}
.sett-theme-row{display:flex;gap:8px;margin-bottom:4px}
.sett-theme-btn{flex:1;height:34px;border-radius:8px;border:1px solid var(--border2);background:var(--bg3);color:var(--text2);font-family:var(--mono);font-size:11px;cursor:pointer;transition:all .15s}
.sett-theme-btn:hover{border-color:rgba(0,229,255,.4);color:var(--text)}
.sett-theme-btn.on{border-color:var(--accent);background:rgba(0,229,255,.08);color:var(--accent);font-weight:600}
.sett-row{display:flex;align-items:center;justify-content:space-between;padding:8px 0;border-bottom:1px solid var(--border)}
.sett-row-lbl{font-family:var(--mono);font-size:12px;color:var(--text2)}
.sett-toggle-row{display:flex;align-items:center;justify-content:space-between;padding:8px 0;border-bottom:1px solid var(--border);cursor:pointer}
.sett-sel{height:28px;padding:0 8px;background:var(--bg3);border:1px solid var(--border2);border-radius:6px;font-family:var(--mono);font-size:11px;color:var(--text2);cursor:pointer;outline:none;transition:border-color .15s}
.sett-sel:focus{border-color:rgba(0,229,255,.45)}
.sett-chk{accent-color:var(--accent);width:15px;height:15px;cursor:pointer;flex-shrink:0}

/* ── HIGH CONTRAST ── */
body.high-contrast{--border:rgba(255,255,255,.28);--border2:rgba(255,255,255,.42);--text2:#c8d0e8;--text3:#7888a8}
[data-theme="light"] body.high-contrast,[data-theme="light"].high-contrast{--border:rgba(0,0,0,.22);--border2:rgba(0,0,0,.32);--text2:#2a3050;--text3:#5060a0}

/* ── REDUCED MOTION ── */
body.reduced-motion *,body.reduced-motion *::before,body.reduced-motion *::after{animation-duration:.001ms !important;transition-duration:.001ms !important}

/* ── MOBILE: settings card full width ── */
@media(max-width:680px){.sett-card{width:calc(100vw - 24px) !important;max-height:calc(100vh - 120px)}}