/* Learn With Great · Studio OS. One switch for light/dark: html[data-tutor-theme] (shared with Tutor LMS). */
:root,[data-tutor-theme=light]{
  --lwg-bg:#fbfbfa; --lwg-surface:#ffffff; --lwg-side:#f6f6f4; --lwg-sunk:#f1f1ef; --lwg-ink:#141414; --lwg-ink2:#2b2b2a; --lwg-muted:#6b6b67; --lwg-faint:#a3a39e;
  --lwg-line:rgba(20,20,20,.08); --lwg-line2:rgba(20,20,20,.14); --lwg-accent:#afafaf; --lwg-inv:#141414; --lwg-inv-fg:#ffffff; --lwg-ok:#2e7d4f; --lwg-no:#b3261e;
  --lwg-shadow:0 1px 2px rgba(20,20,20,.04),0 10px 30px -18px rgba(20,20,20,.18);
  --logo-letters:#141414; --logo-bar:#afafaf; color-scheme:light;
}
[data-tutor-theme=dark]{
  --lwg-bg:#0e0e0f; --lwg-surface:#161617; --lwg-side:#121213; --lwg-sunk:#1d1d1e; --lwg-ink:#f3f3f1; --lwg-ink2:#dcdcd9; --lwg-muted:#a2a29d; --lwg-faint:#6e6e6a;
  --lwg-line:rgba(255,255,255,.07); --lwg-line2:rgba(255,255,255,.13); --lwg-accent:#6f6f6c; --lwg-inv:#f3f3f1; --lwg-inv-fg:#121212; --lwg-ok:#6cc28f; --lwg-no:#f08a80;
  --lwg-shadow:0 1px 2px rgba(0,0,0,.3),0 10px 30px -18px rgba(0,0,0,.6); --logo-letters:#ffffff; color-scheme:dark;
}
@media (prefers-color-scheme:dark){[data-tutor-theme=system]{
  --lwg-bg:#0e0e0f; --lwg-surface:#161617; --lwg-side:#121213; --lwg-sunk:#1d1d1e; --lwg-ink:#f3f3f1; --lwg-ink2:#dcdcd9; --lwg-muted:#a2a29d; --lwg-faint:#6e6e6a;
  --lwg-line:rgba(255,255,255,.07); --lwg-line2:rgba(255,255,255,.13); --lwg-accent:#6f6f6c; --lwg-inv:#f3f3f1; --lwg-inv-fg:#121212; --lwg-ok:#6cc28f; --lwg-no:#f08a80;
  --lwg-shadow:0 1px 2px rgba(0,0,0,.3),0 10px 30px -18px rgba(0,0,0,.6); --logo-letters:#ffffff; color-scheme:dark;
}}

/* ---- Tutor LMS tokens, mapped to the brand (all modes) ---- */
html[data-tutor-theme]{
  --tutor-font-family-body:"Manrope",system-ui,-apple-system,"Segoe UI",sans-serif; --tutor-font-family-heading:"Manrope",system-ui,sans-serif;
  --tutor-button-radius:12px; --tutor-input-radius:12px;
  --tutor-surface-base:var(--lwg-bg); --tutor-surface-l1:var(--lwg-surface); --tutor-surface-l1-hover:var(--lwg-sunk); --tutor-surface-l2:var(--lwg-sunk); --tutor-surface-l2-hover:var(--lwg-line2); --tutor-surface-l3:var(--lwg-side); --tutor-surface-sidebar-l1:var(--lwg-side);
  --tutor-text-primary:var(--lwg-ink); --tutor-text-secondary:var(--lwg-ink2); --tutor-text-subdued:var(--lwg-muted);
  --tutor-icon-idle:var(--lwg-ink2); --tutor-icon-hover:var(--lwg-ink); --tutor-icon-secondary:var(--lwg-muted); --tutor-icon-subdued:var(--lwg-faint);
  --tutor-border-idle:var(--lwg-line2); --tutor-border-idle2:var(--lwg-line); --tutor-border-hover:var(--lwg-ink);
  --tutor-brand-50:var(--lwg-sunk); --tutor-brand-100:var(--lwg-sunk); --tutor-brand-200:var(--lwg-sunk); --tutor-brand-300:var(--lwg-line2); --tutor-brand-400:var(--lwg-faint);
  --tutor-brand-450:var(--lwg-ink); --tutor-brand-500:var(--lwg-ink); --tutor-brand-600:var(--lwg-ink); --tutor-brand-700:var(--lwg-ink2); --tutor-brand-800:var(--lwg-ink); --tutor-brand-900:var(--lwg-ink); --tutor-brand-950:var(--lwg-ink);
  --tutor-surface-brand-primary:var(--lwg-inv); --tutor-surface-brand-secondary:var(--lwg-sunk); --tutor-surface-brand-tertiary:var(--lwg-sunk); --tutor-surface-brand-quaternary:var(--lwg-sunk);
  --tutor-text-brand:var(--lwg-ink); --tutor-text-brand-hover:var(--lwg-ink2); --tutor-icon-brand:var(--lwg-ink); --tutor-border-brand:var(--lwg-ink);
  --tutor-button-primary:var(--lwg-inv); --tutor-button-primary-hover:var(--lwg-ink2); --tutor-button-primary-focused:var(--lwg-inv); --tutor-button-primary-disabled:var(--lwg-faint);
  --tutor-text-primary-inverse:var(--lwg-inv-fg); --tutor-icon-idle-inverse:var(--lwg-inv-fg);
  --tutor-color-primary:var(--lwg-inv); --tutor-color-primary-hover:var(--lwg-ink2);
}

/* ---- base ---- */
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{margin:0;background:var(--lwg-bg);color:var(--lwg-ink);font-family:"Manrope",system-ui,-apple-system,"Segoe UI",sans-serif;font-size:15.5px;line-height:1.6;-webkit-font-smoothing:antialiased}
h1,h2,h3,h4{line-height:1.15;letter-spacing:-.02em;text-wrap:balance;font-weight:800;margin:0}
a{color:inherit}
img{max-width:100%;height:auto}
:focus-visible{outline:2px solid var(--lwg-ink);outline-offset:2px;border-radius:6px}
.screen-reader-text{position:absolute!important;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0)}
.lwg-skip{position:absolute;left:-999px;top:8px;z-index:100;background:var(--lwg-inv);color:var(--lwg-inv-fg);padding:8px 14px;border-radius:10px}
.lwg-skip:focus{left:8px}
.lwg-i{width:18px;height:18px;flex-shrink:0}
.lwg-illo{display:block;color:var(--lwg-ink)}
.lwg-illo svg{display:block;width:100%;height:auto}
@media (prefers-reduced-motion:reduce){*{transition:none!important;animation:none!important}}

/* atoms */
.lwg-logo{display:flex;align-items:center;gap:10px;font-weight:800;font-size:15.5px;letter-spacing:-.01em;text-decoration:none;white-space:nowrap;color:var(--lwg-ink)}
.lwg-logo svg,.lwg-top-logo svg{width:28px;height:auto}
.lwg-btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;background:var(--lwg-inv);color:var(--lwg-inv-fg)!important;border:0;font:700 14.5px/1.2 inherit;font-family:inherit;padding:11px 18px;border-radius:12px;white-space:nowrap;text-decoration:none;cursor:pointer;transition:opacity .15s,transform .15s}
.lwg-btn:hover{opacity:.9}.lwg-btn:active{transform:translateY(1px)}
.lwg-btn-ghost{background:var(--lwg-surface);color:var(--lwg-ink)!important;box-shadow:inset 0 0 0 1px var(--lwg-line2)}
.lwg-btn-sm{padding:8px 13px;font-size:13.5px;border-radius:10px}
.lwg-btn-lg{padding:14px 22px;font-size:15.5px}
.lwg-eyebrow{font-size:12px;font-weight:700;letter-spacing:.1em;text-transform:uppercase;color:var(--lwg-muted);margin:0}
.lwg-chip{display:inline-flex;align-items:center;gap:6px;font-size:12px;font-weight:700;padding:3px 10px;border-radius:999px;background:var(--lwg-sunk);color:var(--lwg-muted)}
.lwg-chip.is-dark{background:var(--lwg-inv);color:var(--lwg-inv-fg)}
.lwg-card{background:var(--lwg-surface);border:1px solid var(--lwg-line);border-radius:16px;box-shadow:var(--lwg-shadow)}
.lwg-bar{display:block;height:6px;border-radius:6px;background:var(--lwg-sunk);overflow:hidden}.lwg-bar i{display:block;height:100%;background:var(--lwg-ink);border-radius:6px}
.lwg-muted{color:var(--lwg-muted)}.lwg-faint{color:var(--lwg-faint);font-size:13px;font-weight:600}
.lwg-link{font-size:13px;font-weight:700;color:var(--lwg-muted);text-decoration:none}
.lwg-row{display:flex;gap:12px;align-items:center;flex-wrap:wrap}
.lwg-row-sb{display:flex;justify-content:space-between;align-items:center;gap:12px}
.lwg-accent{display:block;width:36px;height:4px;border-radius:4px;background:var(--lwg-accent);margin-bottom:10px}
.lwg-sp{flex:1}
.lwg-ib{width:38px;height:38px;border-radius:10px;display:grid;place-items:center;color:var(--lwg-muted);background:transparent;border:0;cursor:pointer;text-decoration:none}
.lwg-ib:hover{background:var(--lwg-sunk);color:var(--lwg-ink)}
.lwg-av{width:34px;height:34px;border-radius:50%;background:var(--lwg-inv);color:var(--lwg-inv-fg);display:grid;place-items:center;font-weight:800;font-size:12px;flex-shrink:0;text-decoration:none}
.lwg-toast{position:fixed;left:50%;bottom:calc(84px + env(safe-area-inset-bottom,0px));transform:translateX(-50%);background:var(--lwg-inv);color:var(--lwg-inv-fg);padding:10px 18px;border-radius:12px;font-weight:600;font-size:14px;z-index:999;opacity:0;transition:opacity .2s;pointer-events:none}
.lwg-toast.on{opacity:1}

/* ---- public (signed out) ---- */
.lwg-pnav{display:flex;align-items:center;gap:22px;padding:16px max(20px,env(safe-area-inset-right,0px)) 16px max(20px,env(safe-area-inset-left,0px));max-width:1240px;margin:0 auto}
.lwg-plinks{display:flex;gap:24px;font-weight:600;font-size:14.5px}
.lwg-plinks a{color:var(--lwg-muted);text-decoration:none}.lwg-plinks a:hover{color:var(--lwg-ink)}
.lwg-content-public{max-width:1240px;margin:0 auto;padding:0 max(20px,env(safe-area-inset-right,0px)) 0 max(20px,env(safe-area-inset-left,0px))}
.lwg-hero{display:grid;grid-template-columns:minmax(0,1.05fr) minmax(0,1fr);gap:48px;align-items:center;padding:clamp(28px,6vw,80px) 0 clamp(28px,5vw,64px)}
.lwg-hero h1{font-size:clamp(38px,5.4vw,64px);letter-spacing:-.035em;line-height:1.04;margin:16px 0 18px}
.lwg-lede{font-size:18px;color:var(--lwg-muted);max-width:30em;margin:0}
.lwg-ctas{display:flex;gap:10px;flex-wrap:wrap;margin-top:28px}
.lwg-ticks{display:flex;gap:20px;flex-wrap:wrap;margin-top:22px;font-size:13.5px;font-weight:600;color:var(--lwg-muted)}
.lwg-heroshot{padding:22px;display:grid;gap:16px}
.lwg-heroshot-art{background:var(--lwg-sunk);border-radius:12px;padding:20px}
.lwg-mini{list-style:none;margin:0;padding:0;display:grid;gap:10px}
.lwg-mini li{display:grid;grid-template-columns:22px 1fr auto;gap:10px;align-items:center;font-size:14px;font-weight:600}
.lwg-mini li span{color:var(--lwg-faint);font-size:13px}
.lwg-mini i{width:20px;height:20px;border-radius:50%;box-shadow:inset 0 0 0 1.5px var(--lwg-line2);display:grid;place-items:center;font-style:normal;font-size:11px}
.lwg-mini i.is-done{background:var(--lwg-ink);color:var(--lwg-bg);box-shadow:none}
.lwg-psec{padding:clamp(32px,5vw,64px) 0;border-top:1px solid var(--lwg-line)}
.lwg-psec-h{display:flex;justify-content:space-between;align-items:end;gap:16px;margin-bottom:26px;flex-wrap:wrap}
.lwg-psec-h h2{font-size:clamp(26px,3.2vw,36px)}
.lwg-grid3{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:18px}
.lwg-cc{display:grid;grid-template-rows:auto 1fr;overflow:hidden;text-decoration:none;color:var(--lwg-ink);transition:transform .2s}
.lwg-cc:hover{transform:translateY(-2px)}
.lwg-cc-art{background:var(--lwg-sunk);aspect-ratio:16/10;display:grid;place-items:center;padding:28px;position:relative}
.lwg-cc-art .lwg-chip{position:absolute;left:14px;top:14px}
.lwg-cc-art .lwg-illo{width:120px}
.lwg-cc-in{padding:18px 20px 20px;display:grid;gap:8px;align-content:start}
.lwg-cc-t{font-size:18px;letter-spacing:-.01em}
.lwg-cc-d{color:var(--lwg-muted);font-size:14.5px}
.lwg-cc-m{display:flex;gap:14px;font-size:13px;font-weight:600;color:var(--lwg-faint);margin-top:4px}
.lwg-step{padding:24px;display:grid;gap:10px;align-content:start}
.lwg-step .lwg-illo{width:64px}
.lwg-step b{font-size:18px}.lwg-step span{color:var(--lwg-muted);font-size:14.5px}
.lwg-empty{padding:32px;display:grid;gap:8px;justify-items:center;text-align:center}
.lwg-empty .lwg-illo{width:90px}
.lwg-pfoot{max-width:1240px;margin:0 auto;padding:28px max(20px,env(safe-area-inset-right,0px)) calc(28px + env(safe-area-inset-bottom,0px)) max(20px,env(safe-area-inset-left,0px));border-top:1px solid var(--lwg-line);display:flex;justify-content:space-between;gap:12px;flex-wrap:wrap;font-size:13.5px;color:var(--lwg-muted)}
.lwg-pfoot a{color:inherit}

/* ---- app shell (signed in) ---- */
.lwg-shell{display:grid;grid-template-columns:252px minmax(0,1fr);min-height:100vh}
.lwg-side{position:sticky;top:0;height:100vh;overflow:auto;background:var(--lwg-side);border-right:1px solid var(--lwg-line);padding:18px 14px;display:flex;flex-direction:column;gap:2px}
.lwg-side .lwg-logo{padding:4px 8px 18px}
.lwg-nav{display:grid;gap:2px}
.lwg-nav a{display:flex;align-items:center;gap:11px;padding:9px 10px;border-radius:10px;color:var(--lwg-muted);font-weight:600;font-size:14px;text-decoration:none}
.lwg-nav a:hover{color:var(--lwg-ink)}
.lwg-nav a.is-on{background:var(--lwg-surface);color:var(--lwg-ink);box-shadow:var(--lwg-shadow)}
.lwg-nav-sm a{font-size:13.5px;padding:7px 10px}
.lwg-nav-sm a span{overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.lwg-side-grp{font-size:11px;letter-spacing:.1em;text-transform:uppercase;color:var(--lwg-faint);margin:20px 10px 6px;font-weight:700}
.lwg-me{margin-top:auto;display:flex;gap:10px;align-items:center;padding:10px;border-radius:12px;background:var(--lwg-surface);box-shadow:var(--lwg-shadow);text-decoration:none;color:var(--lwg-ink)}
.lwg-me-t{display:grid;min-width:0}.lwg-me-t b{font-size:13.5px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.lwg-me-t small{color:var(--lwg-faint);font-size:12px}
.lwg-main{min-width:0;display:flex;flex-direction:column}
.lwg-top{position:sticky;top:0;z-index:20;display:flex;align-items:center;gap:8px;padding:12px 28px;border-bottom:1px solid var(--lwg-line);background:color-mix(in srgb,var(--lwg-bg) 88%,transparent);backdrop-filter:blur(10px)}
.lwg-top-logo{display:none}
.lwg-search{flex:1;max-width:440px;display:flex;align-items:center;gap:10px;background:var(--lwg-sunk);border-radius:12px;padding:0 12px;color:var(--lwg-faint)}
.lwg-search input{flex:1;border:0;background:transparent;padding:10px 0;font:500 14px inherit;font-family:inherit;color:var(--lwg-ink);outline:none;min-width:0}
.lwg-content{min-width:0}
.lwg-page{padding:28px;display:grid;gap:24px;align-content:start;max-width:1180px}
.lwg-page h1{font-size:clamp(26px,3vw,34px)}
.lwg-h3{font-size:16px;margin-bottom:12px}
.lwg-welcome{display:flex;justify-content:space-between;align-items:end;gap:16px;flex-wrap:wrap}
.lwg-cont{display:grid;grid-template-columns:minmax(0,1.2fr) minmax(0,.8fr);overflow:hidden}
.lwg-cont-t{padding:28px;display:grid;gap:12px;align-content:center;justify-items:start}
.lwg-cont-t h2{font-size:clamp(22px,2.6vw,28px)}
.lwg-cont-t .lwg-bar{width:100%}
.lwg-cont-art{background:var(--lwg-sunk);display:grid;place-items:center;padding:24px}
.lwg-cont-art .lwg-illo{width:min(300px,100%)}
.lwg-stats{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:16px}
.lwg-stat{padding:18px 20px;display:grid;gap:6px}
.lwg-stat b{font-size:28px;letter-spacing:-.03em;font-variant-numeric:tabular-nums}
.lwg-stat span{font-size:13px;color:var(--lwg-muted);font-weight:600}
.lwg-panel{padding:20px;display:grid;gap:14px;align-content:start}
.lwg-panel h3{font-size:15.5px}
.lwg-lrow{display:grid;grid-template-columns:48px minmax(0,1fr) auto;gap:14px;align-items:center;padding-top:14px;border-top:1px solid var(--lwg-line);text-decoration:none;color:var(--lwg-ink)}
.lwg-lrow-art{width:48px;height:48px;border-radius:12px;background:var(--lwg-sunk);padding:8px}
.lwg-lrow b{display:block;font-size:14.5px}.lwg-lrow small{display:block;color:var(--lwg-faint);font-size:12.5px;margin-bottom:6px}
.lwg-tabbar{display:none}
.lwg-page-prose{max-width:760px}
.lwg-page-tutor{max-width:none}
.lwg-entry > *:first-child{margin-top:0}

/* ---- Tutor pages inside the shell ---- */
.lwg-app .tutor-wrap,.lwg-app .tutor-container{max-width:none}
.lwg-content .tutor-course-details-page,.lwg-content .tutor-page-wrap{padding-left:28px;padding-right:28px}
.tutor-course-details-title,.tutor-course-details-page h1{font-family:"Manrope",system-ui,sans-serif!important;letter-spacing:-.03em;font-weight:800!important}
.tutor-card,.tutor-course-card{border-radius:16px!important;border-color:var(--lwg-line)!important;box-shadow:var(--lwg-shadow)}
.tutor-btn{font-family:inherit!important;font-weight:700!important;border-radius:12px!important}
.tutor-btn-primary{background:var(--lwg-inv)!important;border-color:var(--lwg-inv)!important;color:var(--lwg-inv-fg)!important}
.tutor-form-control{border-radius:12px!important}

/* ---- lesson components (inside lesson content) ---- */
.oa-goals,.oa-note,.oa-take,.oa-prompt,.oa-compare,.oa-table,.oa-uses,.oa-steps,.oa-yesno,.oa-rules,.oa-tree,.cc-fig,.lwg-ig{margin:1.4em 0}
.oa-label{font-size:12px!important;letter-spacing:.1em;text-transform:uppercase;font-weight:700;color:var(--lwg-muted);margin:0 0 .4em!important}
.oa-goals{background:var(--lwg-sunk);border-radius:14px;padding:16px 20px}
.oa-goals ul{margin:0;padding-left:1.2em}
.oa-inshort{border-left:3px solid var(--lwg-ink);padding:2px 0 2px 16px;font-size:1.15em;line-height:1.5;font-weight:700}
.oa-note{border-radius:14px;padding:16px 20px;background:var(--lwg-sunk)}
.oa-note p{margin:.2em 0}.oa-note-t{font-weight:800}
.oa-note.warn{background:transparent;border:1.5px solid var(--lwg-ink)}
.oa-take{border:1.5px solid var(--lwg-ink);border-radius:14px;padding:16px 20px}
.oa-take p:last-child{margin:0;font-size:1.1em;font-weight:700}
.oa-compare,.oa-yesno{display:grid;grid-template-columns:1fr 1fr;gap:12px}
.oa-compare>div{border-radius:14px;padding:18px 20px;background:var(--lwg-sunk)}
.oa-compare>div.dark{background:var(--lwg-inv);color:var(--lwg-inv-fg)}
.oa-compare p{margin:.2em 0}.oa-c-t{font-weight:800;font-size:1.05em}
.oa-yesno>div{border:1px solid var(--lwg-line2);border-radius:14px;padding:16px 20px}
.oa-yesno ul{margin:.4em 0 0;padding-left:1.2em}
.oa-table{overflow-x:auto}
.oa-table table{border-collapse:collapse;width:100%;font-size:.95em}
.oa-table th,.oa-table td{text-align:left;padding:10px 12px 10px 0;border:0;border-bottom:1px solid var(--lwg-line2);vertical-align:top;background:transparent}
.oa-table th{font-size:12px;letter-spacing:.1em;text-transform:uppercase;color:var(--lwg-muted)}
.oa-table td:first-child{font-weight:700}
.oa-uses,.oa-rules,.oa-steps{list-style:none;margin-left:0!important;padding:0!important}
.oa-uses li,.oa-rules li{padding:12px 0;border-top:1px solid var(--lwg-line);display:grid;gap:2px}
.oa-uses li:last-child,.oa-rules li:last-child{border-bottom:1px solid var(--lwg-line)}
.oa-uses span,.oa-rules span{color:var(--lwg-muted);font-size:.95em}
.oa-rules{counter-reset:r}.oa-rules li{grid-template-columns:36px 1fr;column-gap:12px}
.oa-rules li::before,.oa-steps li::before{width:30px;height:30px;border-radius:50%;background:var(--lwg-inv);color:var(--lwg-inv-fg);display:grid;place-items:center;font-weight:800;font-size:14px}
.oa-rules li::before{counter-increment:r;content:counter(r);grid-row:span 2}
.oa-steps{counter-reset:s;display:grid;gap:10px}
.oa-steps li{display:grid;grid-template-columns:34px 1fr;gap:12px;align-items:start}
.oa-steps li::before{counter-increment:s;content:counter(s)}
.oa-tree{background:var(--lwg-sunk);border-radius:12px;padding:16px 18px;font:14px/1.8 ui-monospace,Menlo,Consolas,monospace;white-space:pre;overflow-x:auto}
.oa-prompt{background:#141414;color:#f1f1f1;border-radius:14px;overflow:hidden;border:1px solid var(--lwg-line2)}
.oa-prompt-h{display:flex;justify-content:space-between;align-items:center;gap:12px;padding:10px 10px 6px 18px;font-size:12px;letter-spacing:.08em;text-transform:uppercase;color:#a3a3a3;font-weight:700}
.oa-copy{font:700 13px inherit;font-family:inherit;background:#fff;color:#141414;border:0;border-radius:999px;padding:7px 16px;cursor:pointer;letter-spacing:0;text-transform:none}
.oa-copy.ok{background:#afafaf}
.oa-prompt pre{margin:0;padding:6px 18px 18px;white-space:pre-wrap;overflow-wrap:anywhere;font:14px/1.65 ui-monospace,Menlo,Consolas,monospace;background:transparent;color:inherit;border:0;font-variant-ligatures:none}

/* recreated Claude desktop app: always the real app's light look */
.cc-fig{display:grid;gap:8px}
.cc-fig figcaption{font-size:13.5px;color:var(--lwg-muted)}
.cc-win{--cc-bg:#faf9f5;--cc-side:#f5f4ee;--cc-chrome:#efeee7;--cc-line:rgba(31,30,29,.13);--cc-ink:#141413;--cc-muted:#73726c;--cc-bubble:#f0eee6;--cc-accent:#d97757;--cc-ok:#5a8a5f;
  background:var(--cc-bg);color:var(--cc-ink);border:1px solid var(--cc-line);border-radius:12px;overflow:hidden;font:14px/1.55 -apple-system,BlinkMacSystemFont,"Segoe UI",system-ui,sans-serif;box-shadow:0 18px 40px -24px rgba(20,20,19,.35);text-align:left}
.cc-bar{display:flex;align-items:center;gap:12px;background:var(--cc-chrome);border-bottom:1px solid var(--cc-line);padding:9px 14px}
.cc-dots{display:flex;gap:7px}.cc-dots i{width:11px;height:11px;border-radius:50%;background:#ff5f57}.cc-dots i:nth-child(2){background:#febc2e}.cc-dots i:nth-child(3){background:#28c840}
.cc-tabs{display:flex;gap:2px;margin:0 auto;background:rgba(31,30,29,.06);border-radius:8px;padding:2px}
.cc-tabs span{padding:3px 14px;border-radius:6px;font-size:12.5px;color:var(--cc-muted)}
.cc-tabs span.on{background:var(--cc-bg);color:var(--cc-ink);font-weight:600;box-shadow:0 1px 2px rgba(0,0,0,.08)}
.cc-bar-r{width:47px}
.cc-body{display:grid;grid-template-columns:200px minmax(0,1fr);min-height:260px}
.cc-side{background:var(--cc-side);border-right:1px solid var(--cc-line);padding:12px 10px;display:flex;flex-direction:column;gap:2px;font-size:13px;color:var(--cc-muted)}
.cc-new{color:var(--cc-ink);font-weight:600;padding:6px 8px}
.cc-lbl{font-size:11px;margin:12px 8px 4px}
.cc-s{padding:6px 8px;border-radius:8px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.cc-s.on{background:rgba(31,30,29,.07);color:var(--cc-ink)}
.cc-main{display:flex;flex-direction:column;justify-content:space-between;min-width:0;padding:18px 22px 14px;gap:14px}
.cc-main.cc-center{justify-content:center;align-items:center;padding:36px 22px}
.cc-hello{font-family:Georgia,"Times New Roman",serif;font-size:26px;margin:0 0 18px!important;color:var(--cc-ink)}
.cc-chat{display:flex;flex-direction:column;gap:14px}
.cc-me{align-self:flex-end;max-width:82%;display:flex;flex-direction:column;align-items:flex-end;gap:8px}
.cc-bub{background:var(--cc-bubble);border-radius:14px;padding:9px 14px}
.cc-chip{display:inline-flex;align-items:center;gap:8px;border:1px solid var(--cc-line);background:#fff;border-radius:10px;padding:5px 10px 5px 5px;font-size:12px;margin-left:6px}
.cc-chip i{width:28px;height:28px;border-radius:6px;background:var(--cc-bubble);display:grid;place-items:center;font-style:normal;font-size:9px;font-weight:700;color:var(--cc-muted)}
.cc-chip small{display:block;color:var(--cc-muted);font-size:10.5px;line-height:1.2}
.cc-ai{display:flex;flex-direction:column;gap:6px;max-width:94%;font-family:Georgia,"Times New Roman",serif;font-size:15px;line-height:1.6}
.cc-ai p,.cc-ai ol{margin:0!important}.cc-ai ol{padding-left:1.3em}
.cc-tool{font:12.5px/1.5 ui-monospace,Menlo,Consolas,monospace;color:var(--cc-muted);display:flex;gap:8px;align-items:baseline;min-width:0}
.cc-tool b{color:var(--cc-ok);font-weight:400;font-size:10px}
.cc-tool span{white-space:nowrap;overflow:hidden;text-overflow:ellipsis;min-width:0}
.cc-perm{font-family:-apple-system,BlinkMacSystemFont,"Segoe UI",system-ui,sans-serif;font-size:13.5px;border:1px solid var(--cc-line);border-radius:12px;background:#fff;padding:12px 14px;display:flex;flex-direction:column;gap:10px}
.cc-perm p{margin:0!important}
.cc-perm code{display:block;background:var(--cc-side);color:var(--cc-ink);border-radius:8px;padding:8px 10px;font-size:12.5px}
.cc-btns{display:flex;gap:8px;flex-wrap:wrap}
.cc-btns span{border:1px solid var(--cc-line);border-radius:8px;padding:5px 12px;font-size:12.5px}
.cc-btns span.pri{background:var(--cc-ink);color:var(--cc-bg);border-color:var(--cc-ink)}
.cc-composer{border:1px solid var(--cc-line);border-radius:16px;background:#fff;padding:12px 14px 10px;display:flex;flex-direction:column;gap:12px}
.cc-composer.wide{width:min(560px,100%)}
.cc-ph{color:var(--cc-muted)}
.cc-row{display:flex;justify-content:space-between;align-items:center;gap:10px;font-size:12.5px;color:var(--cc-muted)}
.cc-l{display:flex;align-items:center;gap:10px}
.cc-plus{width:26px;height:26px;border:1px solid var(--cc-line);border-radius:8px;display:grid;place-items:center;color:var(--cc-ink);font-size:15px}
.cc-send{width:30px;height:30px;border-radius:9px;background:var(--cc-accent);color:#fff;display:grid;place-items:center;font-size:14px;font-weight:700}

/* ---- responsive ---- */
@media (max-width:1000px){
  .lwg-shell{grid-template-columns:minmax(0,1fr)}
  .lwg-side{display:none}
  .lwg-top-logo{display:block}
  .lwg-hero,.lwg-cont{grid-template-columns:minmax(0,1fr)}
  .lwg-grid3{grid-template-columns:repeat(2,minmax(0,1fr))}
  .lwg-app .lwg-content{padding-bottom:calc(70px + env(safe-area-inset-bottom,0px))}
  .lwg-tabbar{display:grid;grid-template-columns:repeat(4,1fr);position:fixed;left:0;right:0;bottom:0;z-index:30;background:color-mix(in srgb,var(--lwg-bg) 92%,transparent);backdrop-filter:blur(12px);border-top:1px solid var(--lwg-line);padding:8px max(6px,env(safe-area-inset-right,0px)) calc(8px + env(safe-area-inset-bottom,0px)) max(6px,env(safe-area-inset-left,0px))}
  .lwg-tabbar a{display:grid;justify-items:center;gap:2px;font-size:11px;font-weight:700;color:var(--lwg-faint);text-decoration:none}
  .lwg-tabbar a.is-on{color:var(--lwg-ink)}
  .lwg-tabbar .lwg-i{width:22px;height:22px}
}
@media (max-width:700px){
  body{font-size:15px}
  .lwg-plinks,.lwg-hide-sm{display:none}
  .lwg-pnav{gap:8px}
  .lwg-grid3,.oa-compare,.oa-yesno{grid-template-columns:minmax(0,1fr)}
  .lwg-stats{gap:8px}.lwg-stat{padding:12px}.lwg-stat b{font-size:22px}.lwg-stat span{font-size:11.5px}
  .lwg-page{padding:18px}.lwg-top{padding:10px 14px}
  .lwg-content .tutor-course-details-page,.lwg-content .tutor-page-wrap{padding-left:16px;padding-right:16px}
  .lwg-cont-art{display:none}
  .cc-body{grid-template-columns:minmax(0,1fr)}.cc-side{display:none}.cc-main{padding:14px}.cc-me{max-width:94%}.cc-hello{font-size:21px}
  .oa-table table,.oa-table tbody,.oa-table tr,.oa-table td{display:block;width:100%}
  .oa-table thead{display:none}
  .oa-table tr{border-bottom:1px solid var(--lwg-line2);padding:10px 0}
  .oa-table td{border:0;padding:2px 0}
  .oa-table td[data-l]:not(:first-child):not([data-l=""])::before{content:attr(data-l) ": ";font-weight:700;color:var(--lwg-muted);font-size:12.5px}
}