/* Learning workspace: presentation layer, loaded after the functional layout. */
:root{--paper:#f6f8fc;--ink:#192334;--muted:#59677a;--line:#e0e6ef;--soft:#eaf4f1;--blue:#3975dc;--violet:#8061c5;font-family:"SF Pro Display","Segoe UI Variable","Segoe UI",system-ui,sans-serif;line-height:1.5}
body{background:var(--paper)}::selection{background:#bde4db;color:#143c34}
button,.button{border-radius:12px;min-height:44px;font-weight:600;transition:background .18s ease,box-shadow .18s ease,transform .16s ease}button:hover,.button:hover{filter:none;box-shadow:0 3px 10px #203d3214}button:active,.button:active{transform:scale(.98)}
:where(button,a,input,textarea,select,summary):focus-visible{outline:3px solid var(--blue);outline-offset:4px}button:disabled{box-shadow:none;cursor:not-allowed}button[aria-busy=true]{cursor:progress;position:relative}button[aria-busy=true]::after{content:"";width:13px;height:13px;border:2px solid currentColor;border-right-color:transparent;border-radius:50%;animation:acp-working .7s linear infinite;flex-shrink:0}
.nav{position:sticky;top:0;z-index:20;height:76px;padding-inline:max(28px,calc((100vw - 1240px)/2));background:#ffffffed;backdrop-filter:blur(18px);border-bottom:1px solid #e0e6efb0;gap:24px}.brand{font-size:19px;letter-spacing:-.6px}.brand-mark{border-radius:12px;background:var(--accent);box-shadow:inset 0 1px 0 #ffffff30}.nav-links{gap:22px;font-size:13px}.nav-links a{color:var(--muted);padding:8px 0}.nav-links a[aria-current=page]{color:var(--ink);box-shadow:0 2px 0 var(--accent)}.nav-tools .lang{min-height:38px}.nav-tools button,.nav-tools .button{font-size:12px;min-height:38px}
.hero{max-width:1304px;padding:78px 32px 68px;gap:56px;grid-template-columns:.92fr 1.08fr;align-items:center}.hero h1{font-size:clamp(40px,4.3vw,62px);line-height:1.12;letter-spacing:-2.5px;margin:0 0 24px;max-width:12ch;font-weight:680;text-wrap:balance}.hero p{font-size:17px;line-height:1.8;max-width:44ch;margin:0}.hero .actions{margin:30px 0 22px}.hero .actions .button{padding:14px 21px}.hero-trust{display:flex;gap:18px;flex-wrap:wrap;color:var(--muted);font-size:12px}.hero-trust span{display:flex;align-items:center;gap:6px}.ui-icon{width:20px;height:20px;vertical-align:middle;flex-shrink:0;stroke:currentColor;fill:none;stroke-width:1.7;stroke-linecap:round;stroke-linejoin:round}
.learning-demo{border-radius:22px;background:#fff;border:1px solid #d9e1eb;box-shadow:0 22px 60px #21365a12,0 3px 8px #21365a05;overflow:hidden;animation:workspace-intro .55s cubic-bezier(.2,.7,.2,1) both}.demo-chrome{display:flex;align-items:center;gap:7px;border-bottom:1px solid var(--line);padding:16px 20px;background:#fbfcfe}.demo-chrome i{height:7px;width:7px;border-radius:50%;background:#d7dfe9}.demo-chrome span{margin-left:auto;font-size:11px;color:var(--muted)}.demo-content{padding:25px}.demo-title{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-bottom:22px}.demo-title strong{font-size:17px;letter-spacing:-.4px}.demo-title small{display:block;color:var(--muted);font-size:11px;margin-top:4px}.demo-status{display:flex;align-items:center;gap:6px;color:var(--accent);background:var(--soft);padding:6px 10px;border-radius:20px;font-size:10px}.demo-status .ui-icon{width:14px;height:14px}
.demo-tabs{display:flex;padding:4px;background:#edf1f7;border-radius:11px;gap:3px;margin-bottom:20px}.demo-tabs button{background:transparent;color:var(--muted);font-size:12px;min-height:35px;border-radius:8px;flex:1;padding:8px 6px;box-shadow:none}.demo-tabs button[aria-pressed=true]{background:#fff;color:var(--ink);box-shadow:0 2px 5px #1923340d}.demo-body{min-height:219px}.demo-content-panel{animation:demo-switch .24s ease}.demo-item{display:flex;gap:12px;align-items:center;padding:14px 0;border-bottom:1px solid var(--line)}.demo-item:last-child{border:0}.demo-item strong{font-size:12px;font-weight:600;display:block}.demo-item small{font-size:11px;color:var(--muted)}.demo-item>span:last-child{margin-left:auto;font-size:10px;color:var(--muted)}.lesson-icon{height:35px;width:35px;border-radius:10px;display:grid;place-items:center;background:#eaf1ff;color:var(--blue)}.lesson-icon.reading{background:#edf5f0;color:var(--accent)}.lesson-icon.quiz{background:#f2edfa;color:var(--violet)}.demo-footer{border-top:1px solid var(--line);padding:13px 20px;display:flex;align-items:center;gap:8px;background:#fbfcfe;font-size:11px;color:var(--muted)}.demo-note{padding:16px;border-radius:12px;background:#f4f1fa;color:#5d4888;font-size:12px;line-height:1.8}.demo-note p{font-size:12px;line-height:1.8;color:inherit;margin:8px 0 0}.demo-key{border:1px solid var(--line);border-radius:14px;padding:20px}.demo-key strong{font-size:17px}.demo-key p{font-size:12px;margin:10px 0}.demo-key .key{letter-spacing:2px;background:#f5f7fb;margin:15px 0 0;overflow:hidden;white-space:nowrap}
.journey{max-width:1240px;margin:0 auto 35px;display:grid;grid-template-columns:repeat(3,1fr);gap:0;padding:25px 0;border-top:1px solid var(--line);border-bottom:1px solid var(--line)}.journey-item{padding:8px 30px;display:flex;gap:14px}.journey-item+.journey-item{border-left:1px solid var(--line)}.journey-item>b{background:#eaf0fa;color:#536882;width:27px;height:27px;display:grid;place-items:center;border-radius:50%;font-size:12px;flex-shrink:0}.journey-item strong{font-size:14px;font-weight:600}.journey-item p{font-size:12px;line-height:1.7;margin:5px 0 0;max-width:30ch}
.wrap{max-width:1304px;padding:48px 32px 80px}.plans-heading{display:flex;justify-content:space-between;align-items:end;gap:32px}.plans-heading p{max-width:53ch;font-size:13px;margin:0}.section-title{font-size:34px;letter-spacing:-1.2px;line-height:1.2}.plans-grid{gap:20px;margin-top:30px}.plan-card{padding:28px;border-radius:20px;box-shadow:none;position:relative}.plan-card .pill{align-self:flex-start;background:#edf2fa;color:#506482;font-size:12px}.plan-card .price{font-size:36px;letter-spacing:-1.5px;line-height:1.2;margin:16px 0 10px;font-variant-numeric:tabular-nums}.plan-card ul{border-top:1px solid var(--line);padding-top:17px;line-height:1.6}.plan-card .button,.plan-card>button{width:100%}.plan-card[data-free=true]{background:#eef3f8;border-color:transparent}.plan-card[data-free=true] .price{color:#56677e}.plan-card li::before{content:'✓';display:inline-block;width:16px;margin-right:7px}.plans-page>p{max-width:65ch}
.workspace{grid-template-columns:216px minmax(0,1fr);min-height:calc(100vh - 76px)}.sidebar{background:#f1f4f9;padding:22px 12px}.sidebar .label{text-transform:none;letter-spacing:0;color:var(--muted);font-size:12px;font-weight:600;padding:12px 14px}.sidebar a{color:#5b687a;margin:3px 0;padding:11px 13px;border-radius:10px}.sidebar a.current{background:white;color:var(--accent);box-shadow:0 2px 6px #1c315409}.sidebar a:hover{background:#ffffff90}.main{padding:36px 40px 60px}.page-head{margin-bottom:28px}.page-head h1{font-size:32px;font-weight:650;letter-spacing:-1px}.page-head p{max-width:62ch}.card{border-radius:17px;padding:26px;border-color:var(--line);box-shadow:0 2px 4px #21365a03}.card h3{font-size:17px;letter-spacing:-.25px;font-weight:650}.stats{gap:0;border:1px solid var(--line);border-radius:18px;background:white;overflow:hidden}.stat{border:0;border-radius:0;box-shadow:none;padding:25px}.stat+.stat{border-left:1px solid var(--line)}.stat strong{font-variant-numeric:tabular-nums;font-size:32px;font-weight:650;color:var(--ink)}.stat:first-child strong{color:var(--blue)}.stat:nth-child(2) strong{color:var(--accent)}.stat:nth-child(3) strong{color:var(--violet)}
.table-wrap{border-radius:15px}.table-wrap table{font-variant-numeric:tabular-nums}.table-wrap th{background:#f1f4f9;font-size:12px;color:#54647b;font-weight:600}.table-wrap td{padding:17px 19px}.table-wrap tbody tr:hover{background:#f8fafd}.table-wrap .micro{margin-top:4px}.toolbar input{background:white;min-height:43px}.pill{border-radius:7px;font-size:11px}.pill.warn{background:#fff3d9;color:#82591b}.pill.bad{background:#fceae9;color:#9c3934}.notice{background:#edf5f3;border:1px solid #dbeae5;color:#37665a;border-radius:13px}.empty{border:1px dashed #cbd6e3;background:#ffffff80;border-radius:15px;margin-top:16px;line-height:1.8}.key{border-style:solid;border-color:#dae3ef;border-radius:10px;background:#f3f6fb;color:#354963;letter-spacing:.3px}.devices-list{line-height:1.8}
.field{font-size:13px;color:#536174}.field>span{font-weight:600;margin-bottom:8px}.field input,.field select,.field textarea,input.search{border-radius:11px;min-height:44px;padding:12px 13px;border-color:#d8e1ec;background:#fbfcfe;transition:border-color .15s,box-shadow .15s}.field input:focus,.field textarea:focus,.field select:focus{background:#fff;box-shadow:0 0 0 3px #3975dc12;border-color:var(--blue)}.checkbox{font-size:13px}.checkbox input{height:16px;width:16px;flex-shrink:0}.callback-url{padding:12px;background:#f2f5fa;border-radius:9px;line-height:1.7}.integration-settings .card{padding:26px}.integration-settings .card>h3{padding-bottom:15px;border-bottom:1px solid var(--line)}.identity-card{background:#fff;border-left:4px solid var(--blue)}
.auth{max-width:460px;margin:64px auto;padding:34px;border-radius:23px;box-shadow:0 18px 50px #21365a08}.auth h1{font-size:29px;margin-bottom:25px}.auth .oauth-buttons{display:grid;grid-template-columns:1fr;margin:0 0 24px;gap:9px}.oauth-buttons button{background:#fff;border:1px solid #d8e1ec;color:var(--ink)}.oauth-buttons button:hover{background:#f5f7fb}.oauth-buttons button[data-provider=google]::before{content:'G';font-weight:750;color:var(--blue);font-size:17px;margin-right:4px}.oauth-buttons button[data-provider=github]::before{content:'⌘';font-size:19px;color:var(--ink);margin-right:4px}.auth>p{font-size:13px}.auth>form>button{width:100%;margin-top:6px}.auth-links{display:flex;flex-wrap:wrap;justify-content:center;gap:12px;margin-top:20px}.auth-links a{font-size:13px}.auth .micro{font-size:12px}
dialog{border:1px solid #e4eaf3;border-radius:24px;padding:30px;box-shadow:0 30px 100px #172e4940;max-height:calc(100dvh - 40px);overscroll-behavior:contain}dialog[open]{animation:dialog-open .24s cubic-bezier(.2,.7,.2,1)}dialog::backdrop{background:#192a4055;backdrop-filter:blur(7px)}.dialog-head{margin-bottom:24px}.dialog-head h2{font-size:23px;letter-spacing:-.7px}.dialog-head button{background:#f1f4f8;border:0;color:#59677a}.payment{gap:30px}.payment img{border-radius:16px;padding:8px;background:#fff}.payment dt{font-size:11px;margin:0 0 3px}.payment dd{font-size:14px;font-variant-numeric:tabular-nums}.payment .pill{margin-bottom:12px}.payment+ .notice{margin-bottom:22px}#toast{border-radius:14px;padding:15px 22px;box-shadow:0 8px 35px #19233433;line-height:1.6}#toast[style*="block"]{animation:toast-open .2s ease}.footer{font-size:12px;background:#edf2f8;border-top:0;padding:26px max(28px,calc((100vw - 1240px)/2));line-height:1.8}.boot{font-size:17px}.error-box{line-height:1.8;border:1px solid #f0d3cf}
@keyframes workspace-intro{from{opacity:0;transform:translateY(12px) scale(.99)}to{opacity:1;transform:none}}@keyframes demo-switch{from{opacity:.2;transform:translateX(5px)}to{opacity:1;transform:none}}@keyframes dialog-open{from{opacity:0;transform:translateY(12px) scale(.98)}to{opacity:1;transform:none}}@keyframes toast-open{from{opacity:0;margin-bottom:-5px}to{opacity:1;margin-bottom:0}}@keyframes acp-working{to{transform:rotate(360deg)}}
@media(max-width:1080px){.nav{padding-inline:24px}.nav-links{gap:14px;font-size:12px}.hero{gap:32px;padding-top:48px}.hero h1{font-size:48px}.demo-content{padding:20px}.journey{margin-inline:32px}.journey-item{padding-inline:18px}.main{padding:28px}.plans-heading{align-items:start;flex-direction:column;gap:10px}.workspace{grid-template-columns:190px minmax(0,1fr)}}
@media(max-width:760px){.nav{height:auto;min-height:72px;flex-wrap:wrap;padding:15px 20px 0;gap:12px}.brand{font-size:16px}.nav-tools{margin-left:auto}.nav-links{display:flex;order:3;width:100%;gap:22px;overflow:auto;white-space:nowrap;padding-bottom:8px;font-size:12px}.nav-links a{padding-block:7px}.hero{grid-template-columns:1fr;padding:42px 22px 36px;gap:32px}.hero h1{font-size:44px;max-width:15ch;letter-spacing:-1.8px}.hero p{font-size:15px;max-width:48ch}.hero .actions{margin-top:23px}.learning-demo{width:100%;max-width:560px;margin:auto}.journey{grid-template-columns:1fr;margin:0 22px 16px;padding:9px 0}.journey-item{padding:16px 0}.journey-item+.journey-item{border-left:0;border-top:1px solid var(--line)}.journey-item p{max-width:none}.wrap{padding:32px 22px 55px}.plans-grid{grid-template-columns:1fr}.section-title{font-size:29px}.plan-card{padding:24px}.workspace{display:block}.sidebar{position:static;display:flex;overflow:auto;padding:8px 12px;border-right:0}.sidebar .label{display:none}.sidebar a{white-space:nowrap}.main{padding:25px 20px 45px}.stats{grid-template-columns:1fr 1fr}.stat{padding:20px}.stat:nth-child(3){border-left:0;border-top:1px solid var(--line)}.stat:nth-child(4){border-top:1px solid var(--line)}.stat strong{font-size:26px}.grid2{grid-template-columns:1fr}.auth{margin:30px 20px;max-width:none;padding:27px}.footer{padding:23px;gap:8px}.payment{grid-template-columns:1fr}.form-grid,.feature-grid{grid-template-columns:1fr}dialog{padding:23px;border-radius:20px}.table-wrap td{padding:13px 15px}}
@media(max-width:380px){.brand{font-size:14px}.brand-mark{width:30px;height:30px}.nav{padding-inline:14px}.nav-tools{gap:5px}.nav-tools .button{padding:8px}.demo-status{display:none}.demo-content{padding:16px}.hero h1{font-size:38px}}
@media(prefers-reduced-motion:reduce){*,*::before,*::after{animation:none!important;transition:none!important;scroll-behavior:auto!important}}