/* AI course generation: an interactive "course studio" */
.ai2{position:relative;overflow:hidden;isolation:isolate;padding:112px 0;background:#3B0764;color:#fff}
html[data-theme="dark"] .ai2{background:#0B0A10}
.ai2:before{content:none}
.ai2 .wrap{position:relative;z-index:2}
.ai-aurora{position:absolute;inset:0;z-index:0;pointer-events:none;overflow:hidden}
.ai-aurora i{position:absolute;border-radius:50%;filter:blur(90px);opacity:.55;will-change:transform}
.ai-aurora i:nth-child(1){width:46vw;height:46vw;left:-12vw;top:-18vw;background:#7C3AED;animation:auA 18s ease-in-out infinite alternate}
.ai-aurora i:nth-child(2){width:38vw;height:38vw;right:-10vw;top:6vw;background:#4F46E5;opacity:.42;animation:auB 22s ease-in-out infinite alternate}
.ai-aurora i:nth-child(3){width:34vw;height:34vw;left:30vw;bottom:-20vw;background:#C026D3;opacity:.3;animation:auC 26s ease-in-out infinite alternate}
html[data-theme="dark"] .ai-aurora i{opacity:.36}
@keyframes auA{to{transform:translate(8vw,6vw) scale(1.15)}}@keyframes auB{to{transform:translate(-9vw,8vw) scale(.9)}}@keyframes auC{to{transform:translate(-8vw,-6vw) scale(1.2)}}
.ai-grid2{position:absolute;inset:0;z-index:0;pointer-events:none;background-image:linear-gradient(rgba(255,255,255,.04) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.04) 1px,transparent 1px);background-size:64px 64px;-webkit-mask-image:radial-gradient(ellipse 70% 70% at 50% 40%,#000,transparent 75%);mask-image:radial-gradient(ellipse 70% 70% at 50% 40%,#000,transparent 75%)}
.ai-sparks{position:absolute;inset:0;z-index:1;pointer-events:none}
.ai-sparks i{position:absolute;width:var(--s,10px);height:var(--s,10px);background:#fff;opacity:0;clip-path:polygon(50% 0,60% 40%,100% 50%,60% 60%,50% 100%,40% 60%,0 50%,40% 40%);animation:twinkle var(--t,4s) var(--d,0s) ease-in-out infinite}
@keyframes twinkle{0%,100%{opacity:0;transform:scale(.4) rotate(0)}50%{opacity:.85;transform:scale(1) rotate(90deg)}}

.ai2 .ai-grid{display:grid;grid-template-columns:minmax(0,5fr) minmax(0,6fr);gap:72px;align-items:center}
.ai-copy h2{color:#fff;margin-bottom:18px}
.ai2 .eyebrow{color:#C4B5FD}
.ai2 .lead{color:#DDD6FE;max-width:520px;margin-bottom:34px}
html[data-theme="dark"] .ai2 .lead{color:#A1A1AA}

/* stepper */
.ai-steps{list-style:none;padding:0;margin:0 0 30px;position:relative;display:grid;gap:6px}
.ai-steps li{position:relative;display:flex;gap:16px;align-items:flex-start;padding:12px 14px 12px 0;border-radius:14px;transition:background .3s,transform .3s cubic-bezier(.16,1,.3,1);cursor:default}
.ai-steps li:hover{background:rgba(255,255,255,.05)}
.ai-steps .n{position:relative;z-index:1;flex:none;width:44px;height:44px;border-radius:50%;display:grid;place-items:center;font-weight:800;background:#2A0A4A;color:#C4B5FD;border:2px solid rgba(255,255,255,.16);transition:background .4s,border-color .4s,color .4s,box-shadow .4s,transform .5s cubic-bezier(.34,1.56,.64,1)}
html[data-theme="dark"] .ai-steps .n{background:#15121F}
.ai-steps .n .ms{position:absolute;opacity:0;transform:scale(.4);transition:.4s}
.ai-steps li.on .n{background:#7C3AED;border-color:#DDD6FE;color:#fff;transform:scale(1.1);box-shadow:0 0 0 6px rgba(167,139,250,.22),0 10px 30px -6px rgba(124,58,237,.9)}
.ai-steps li.done .n{background:#10B981;border-color:#10B981;color:#fff}
.ai-steps li.done .n b{opacity:0;transform:scale(.4)}.ai-steps li.done .n .ms{opacity:1;transform:scale(1)}
.ai-steps .n b{transition:.3s}
.ai-steps h3{font-size:1.08rem;letter-spacing:-.01em;color:rgba(255,255,255,.7);margin:3px 0 3px;transition:color .3s}
.ai-steps p{margin:0;color:rgba(221,214,254,.62);font-size:.93rem;line-height:1.5;transition:color .3s}
.ai-steps li.on h3,.ai-steps li.done h3{color:#fff}.ai-steps li.on p{color:#DDD6FE}
html[data-theme="dark"] .ai-steps p{color:#71717A}html[data-theme="dark"] .ai-steps li.on p{color:#C4C4CC}
.ai-meta{display:flex;flex-wrap:wrap;gap:8px;margin-bottom:28px}
.ai-meta>span{display:inline-flex;align-items:center;gap:7px;padding:8px 14px;border-radius:999px;background:rgba(255,255,255,.08);border:1px solid rgba(255,255,255,.14);font-weight:700;font-size:.85rem;color:#EDE9FE;transition:transform .3s cubic-bezier(.34,1.56,.64,1),background .2s}
.ai-meta>span:hover{transform:translateY(-3px);background:rgba(255,255,255,.14)}
.ai-meta .ms{font-size:18px;color:#C4B5FD}

/* the studio window */
.ai-studio{position:relative;border-radius:20px;background:rgba(255,255,255,.07);border:1px solid rgba(255,255,255,.16);backdrop-filter:blur(18px);-webkit-backdrop-filter:blur(18px);box-shadow:0 40px 90px -30px rgba(0,0,0,.7),0 0 0 1px rgba(255,255,255,.04) inset;overflow:hidden}
html[data-theme="dark"] .ai-studio{background:rgba(24,24,27,.7)}
.as-bar{display:flex;align-items:center;gap:8px;padding:13px 18px;border-bottom:1px solid rgba(255,255,255,.1)}
.as-bar i{width:10px;height:10px;border-radius:50%;background:rgba(255,255,255,.22)}
.as-bar b{margin-left:10px;font-size:.82rem;font-weight:700;color:#DDD6FE}
.as-status{margin-left:auto;display:inline-flex;align-items:center;gap:7px;padding:4px 11px;border-radius:999px;font-size:.72rem;font-weight:800;letter-spacing:.06em;text-transform:uppercase;background:rgba(255,255,255,.1);color:#EDE9FE;transition:background .3s,color .3s}
.as-status:before{content:"";width:6px;height:6px;border-radius:50%;background:currentColor}
.ai-studio[data-s="typing"] .as-status,.ai-studio[data-s="gen"] .as-status{background:rgba(250,204,21,.16);color:#FDE047}
.ai-studio[data-s="gen"] .as-status:before{animation:blinkDot 1s infinite}
.ai-studio[data-s="done"] .as-status{background:rgba(16,185,129,.18);color:#6EE7B7}
@keyframes blinkDot{50%{opacity:.2}}
.as-body{padding:18px}
.as-compose{display:flex;gap:10px;align-items:stretch}
.as-input{flex:1;min-width:0;display:flex;gap:11px;align-items:flex-start;padding:13px 14px;border-radius:14px;background:rgba(9,9,11,.5);border:1.5px solid rgba(255,255,255,.14);transition:border-color .25s,box-shadow .25s;min-height:74px}
.ai-studio[data-s="typing"] .as-input{border-color:#A78BFA;box-shadow:0 0 0 4px rgba(167,139,250,.2)}
.as-input .ms{color:#C4B5FD;font-size:22px;margin-top:1px}
.as-typed{font-size:.97rem;line-height:1.45;color:#fff;font-weight:500}
.as-typed .ph{color:rgba(255,255,255,.42)}
.as-caret{display:inline-block;width:2px;height:1.1em;background:#C4B5FD;margin-left:2px;vertical-align:-3px;animation:blink 1s steps(2) infinite}
.as-go{flex:none;align-self:stretch;display:inline-flex;flex-direction:column;align-items:center;justify-content:center;gap:4px;min-width:84px;padding:0 14px;border:0;border-radius:14px;cursor:pointer;font:inherit;font-weight:800;font-size:.82rem;color:#fff;
  background:linear-gradient(160deg,#8B5CF6,#6D28D9);box-shadow:0 12px 28px -10px rgba(124,58,237,.9),inset 0 1px 0 rgba(255,255,255,.3);position:relative;overflow:hidden;transition:transform .25s cubic-bezier(.34,1.56,.64,1),filter .2s}
.as-go:hover{transform:translateY(-2px);filter:brightness(1.1)}.as-go:active,.as-go.press{transform:scale(.94)}
.as-go .ms{font-size:24px}
.as-go:after{content:"";position:absolute;inset:0;background:linear-gradient(110deg,transparent 30%,rgba(255,255,255,.45) 50%,transparent 70%);transform:translateX(-130%)}
.as-go:hover:after,.ai-studio[data-s="typing"] .as-go:after{transform:translateX(130%);transition:transform .8s}
.ai-studio[data-s="gen"] .as-go .ms{animation:spin .8s linear infinite}
.as-chips{display:flex;gap:7px;flex-wrap:wrap;margin-top:12px}
.as-chips button{display:inline-flex;align-items:center;gap:6px;min-height:38px;padding:7px 13px;border-radius:999px;border:1px solid rgba(255,255,255,.16);background:rgba(255,255,255,.06);color:#DDD6FE;font:inherit;font-weight:700;font-size:.8rem;cursor:pointer;transition:transform .25s cubic-bezier(.34,1.56,.64,1),background .2s,border-color .2s,color .2s}
.as-chips button:hover{transform:translateY(-2px);background:rgba(255,255,255,.12);border-color:#A78BFA;color:#fff}
.as-chips button[aria-pressed="true"]{background:#7C3AED;border-color:#A78BFA;color:#fff}
.as-chips .ms{font-size:17px}

.as-pipe{list-style:none;padding:0;margin:16px 0 0;display:grid;gap:7px}
.as-pipe li{display:flex;align-items:center;gap:11px;padding:8px 12px;border-radius:12px;background:rgba(255,255,255,.04);font-size:.86rem;font-weight:600;color:rgba(221,214,254,.5);transition:background .3s,color .3s}
.as-pipe .pi{position:relative;width:22px;height:22px;flex:none;display:grid;place-items:center;border-radius:50%;border:2px solid rgba(255,255,255,.2);transition:.35s}
.as-pipe .pi .ms{font-size:14px;opacity:0;transform:scale(.4);transition:.35s}
.as-pipe li.run{background:rgba(167,139,250,.14);color:#fff}
.as-pipe li.run .pi{border-color:rgba(167,139,250,.35);border-top-color:#C4B5FD;animation:spin .8s linear infinite}
.as-pipe li.ok{color:#DDD6FE}.as-pipe li.ok .pi{background:#10B981;border-color:#10B981;color:#fff}.as-pipe li.ok .pi .ms{opacity:1;transform:none}
.as-pipe em{margin-left:auto;font-style:normal;font-size:.72rem;font-weight:800;letter-spacing:.05em;text-transform:uppercase;opacity:.7}

.as-out{margin-top:14px;border-radius:14px;background:rgba(9,9,11,.4);border:1px solid rgba(255,255,255,.1);padding:12px}
.as-oh{display:flex;justify-content:space-between;align-items:center;font-size:.78rem;font-weight:800;letter-spacing:.05em;text-transform:uppercase;color:#C4B5FD;margin-bottom:9px}
.as-oh span:last-child{color:#fff;font-variant-numeric:tabular-nums}
.as-meter{height:5px;border-radius:5px;background:rgba(255,255,255,.12);overflow:hidden;margin-bottom:10px}
.as-meter i{display:block;height:100%;width:100%;transform-origin:0 50%;transform:scaleX(var(--m,0));background:linear-gradient(90deg,#8B5CF6,#C4B5FD);transition:transform .6s cubic-bezier(.16,1,.3,1)}
.as-list{display:grid;gap:7px;min-height:232px;align-content:start}
.as-row{display:flex;align-items:center;gap:12px;padding:10px 12px;border-radius:12px;background:#fff;color:#18181B;font-weight:700;min-height:52px;transition:transform .25s cubic-bezier(.34,1.56,.64,1),box-shadow .25s}
.as-row:hover{transform:translateX(5px);box-shadow:0 10px 24px -10px rgba(0,0,0,.6)}
html[data-theme="dark"] .as-row{background:#202024;color:#FAFAFA}
.as-row .t{width:32px;height:32px;border-radius:9px;display:grid;place-items:center;flex:none;background:#EDE9FE;color:#5412C4}
html[data-theme="dark"] .as-row .t{background:rgba(124,58,237,.25);color:#DDD6FE}
.as-row .t .ms{font-size:19px}
.as-row em{font-style:normal;flex:1;min-width:0;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.as-row small{font-weight:600;color:#71717A;font-size:.8rem;white-space:nowrap}
.as-row .ok{width:22px;height:22px;border-radius:50%;background:#10B981;color:#fff;display:grid;place-items:center;flex:none;transform:scale(0);animation:popIn .45s .1s forwards cubic-bezier(.34,1.56,.64,1)}
.as-row .ok .ms{font-size:14px}
@keyframes popIn{to{transform:scale(1)}}
.as-row.in{animation:rowIn .55s both cubic-bezier(.16,1,.3,1)}
@keyframes rowIn{from{opacity:0;transform:translateY(12px) scale(.97)}to{opacity:1;transform:none}}
.as-row.sk{background:rgba(255,255,255,.08);position:relative;overflow:hidden}
.as-row.sk>*{opacity:0}
.as-row.sk:after{content:"";position:absolute;inset:0;background:linear-gradient(100deg,transparent 20%,rgba(255,255,255,.18) 50%,transparent 80%);transform:translateX(-100%);animation:shimmer 1.1s infinite}
.as-foot{display:flex;align-items:center;gap:12px;margin-top:14px}
.as-pub{display:inline-flex;align-items:center;gap:8px;min-height:46px;padding:0 20px;border-radius:999px;border:1.5px solid rgba(255,255,255,.25);background:transparent;color:rgba(255,255,255,.55);font:inherit;font-weight:800;cursor:pointer;transition:background .3s,color .3s,border-color .3s,transform .25s cubic-bezier(.34,1.56,.64,1)}
.as-pub .ms{font-size:20px}
.ai-studio[data-s="ready"] .as-pub{background:#fff;color:#4C1D95;border-color:#fff}
.ai-studio[data-s="ready"] .as-pub:hover{transform:translateY(-2px)}
.ai-studio[data-s="done"] .as-pub{background:#10B981;border-color:#10B981;color:#fff}
.as-note{font-size:.82rem;font-weight:600;color:#C4B5FD;opacity:0;transform:translateY(6px);transition:.4s}
.ai-studio[data-s="done"] .as-note{opacity:1;transform:none}
.as-burst{position:absolute;left:0;top:0;width:0;height:0;z-index:5;pointer-events:none}
.as-burst i{position:absolute;width:8px;height:8px;border-radius:2px;background:var(--c);animation:burst .9s forwards cubic-bezier(.16,1,.3,1)}
@keyframes burst{from{transform:translate(0,0) rotate(0) scale(1);opacity:1}to{transform:translate(var(--x),var(--y)) rotate(var(--r)) scale(.4);opacity:0}}
.vh{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap}

@media (max-width:980px){.ai2{padding:76px 0}.ai2 .ai-grid{grid-template-columns:minmax(0,1fr);gap:44px}.as-list{min-height:0}.ai-aurora i{filter:blur(60px)}}
@media (max-width:520px){.as-compose{flex-direction:column}.as-go{flex-direction:row;min-height:48px;justify-content:center}.as-body{padding:14px}}
@media (prefers-reduced-motion:reduce){.ai-aurora i,.ai-sparks i,.as-pipe li.run .pi,.ai-studio[data-s="gen"] .as-go .ms{animation:none!important}.as-row.in{animation:none}}

/* connectors: one segment per step, from this circle's centre to the next one's, so ends and hover never misalign */
.ai-steps li{padding:12px 14px 12px 0}
.ai-steps li>div{transition:transform .35s cubic-bezier(.16,1,.3,1)}
.ai-steps li:hover>div{transform:translateX(4px)}
.ai-steps li:not(:last-child):before,.ai-steps li:not(:last-child):after{content:"";position:absolute;left:21px;top:34px;width:2px;height:calc(100% + 6px);border-radius:2px;z-index:0}
.ai-steps li:not(:last-child):before{background:rgba(255,255,255,.14)}
.ai-steps li:not(:last-child):after{background:linear-gradient(#C4B5FD,#7C3AED);transform:scaleY(0);transform-origin:50% 0;transition:transform .7s cubic-bezier(.16,1,.3,1);box-shadow:0 0 10px rgba(167,139,250,.7)}
.ai-steps li.done:not(:last-child):after{transform:scaleY(1)}
.ai-steps .n{z-index:1}

/* hover: the highlight now has real inner padding; circles and connectors stay perfectly in line */
.ai-steps{margin-left:-10px;gap:4px}
.ai-steps li{padding:12px 16px 12px 10px;border-radius:16px}
.ai-steps li:not(:last-child):before,.ai-steps li:not(:last-child):after{left:31px;height:calc(100% + 4px)}
.ai-steps li:hover{background:rgba(255,255,255,.06)}
.ai-steps li:not(.on):not(.done):hover .n{border-color:rgba(255,255,255,.4);color:#fff;transform:scale(1.06)}
.ai-steps li:hover>div{transform:none}
.ai-steps li:hover h3{color:#fff}.ai-steps li:hover p{color:#DDD6FE}
@media (max-width:980px){.ai-steps{margin-left:0}}

.ai-meta>span{min-height:40px;line-height:1}
.ai-meta>span .ms{display:inline-block;width:1em;height:1em;padding:0;margin:0;border:0;background:none;border-radius:0;font-size:19px;color:#C4B5FD;flex:none}