@font-face{font-family:Inter;src:url('/fonts/inter.woff2') format('woff2');font-weight:100 900;font-style:normal;font-display:swap}
@font-face{font-family:'Source Serif';src:url('/fonts/source-serif.woff2') format('woff2');font-weight:200 900;font-style:normal;font-display:swap}
:root{
  --canvas:#fafafa;--surface:#fff;--surface-soft:#f1f1f1;--nav:#f5f5f5;
  --ink:#303030;--body:#434343;--secondary:#6b6b6b;--faint:#727272;--context:#737373;
  --line:#e5e5e5;--line-strong:#c5c5c5;--accent:#4c64ae;--accent-soft:#eff2fc;
  --button:#465faa;--on-button:#fff;--button-border:transparent;
  --mark:#e8edfa;--mark-ink:#344675;--mark-secondary:#eee9f5;--mark-secondary-ink:#514568;
  --mark-tertiary:#f2ece1;--mark-tertiary-ink:#675b46;--mark-quaternary:#ececec;--mark-quaternary-ink:#4d4d4d;--danger:#935844;--danger-soft:#faf0eb;
  --shadow:0 2px 6px #00000003,0 10px 30px #00000002;--scrim:#00000035;
  --sans:Inter,-apple-system,BlinkMacSystemFont,'Apple SD Gothic Neo','Malgun Gothic',sans-serif;
  --serif:'Source Serif',Georgia,serif;--toolbar-height:0px;
  font:400 14px/1.5 var(--sans);font-synthesis:none;font-kerning:normal;
  color:var(--ink);background:var(--canvas);color-scheme:light;
  scrollbar-color:var(--line-strong) transparent;
}
:root[data-appearance=dark]{
  --canvas:#151515;--surface:#1b1b1b;--surface-soft:#242424;--nav:#181818;
  --ink:#cdcdcd;--body:#bdbdbd;--secondary:#949494;--faint:#929292;--context:#959595;
  --line:#2b2b2b;--line-strong:#454545;--accent:#a0b1e7;--accent-soft:#232a3b;
  --button:#2d3955;--on-button:#c6d3fa;--button-border:#394869;
  --mark:#293144;--mark-ink:#c4cce0;--mark-secondary:#34303f;--mark-secondary-ink:#ccc7d7;
  --mark-tertiary:#373229;--mark-tertiary-ink:#d2c8b5;--mark-quaternary:#303030;--mark-quaternary-ink:#cdcdcd;--danger:#c99985;--danger-soft:#292220;
  --shadow:none;--scrim:#00000090;color-scheme:dark;
}
/* Student surfaces share a single palette. Legacy tutor controls stay separate. */
html{--paper:var(--canvas);--white:var(--surface);--muted:var(--secondary);--green:var(--accent);--serif:'Source Serif',Georgia,serif}
body{background:var(--canvas);color:var(--ink)}
.workspace-view{--paper:var(--canvas);--white:var(--surface);--muted:var(--secondary);--green:var(--accent);font:400 14px/1.5 var(--sans);color:var(--ink);background:var(--canvas)}
/* This layout scrolls with the document, unlike the legacy fixed-height room. */
body.workspace-view.in-room{overflow:visible}
body.workspace-view.in-room:has(dialog[open]){overflow:hidden}
.workspace-view *{box-sizing:border-box}
.workspace-view button,.workspace-view input,.workspace-view textarea{font-family:var(--sans)}
.workspace-view button,.workspace-view a,.workspace-view summary{touch-action:manipulation}
.workspace-view button:focus-visible,.workspace-view a:focus-visible,.workspace-view summary:focus-visible,.workspace-view input:focus-visible,.workspace-view textarea:focus-visible{outline:2px solid var(--accent);outline-offset:4px}
.workspace-view a{color:inherit}
.workspace-view .button{display:inline-flex;align-items:center;justify-content:center;gap:24px;padding:10px 16px;min-height:42px;font:400 13px/1.5 var(--sans);border:1px solid var(--line);border-radius:8px;background:var(--surface);color:var(--ink);text-decoration:none;transition:filter .15s,transform .15s}
.workspace-view .button.primary{background:var(--button);color:var(--on-button);border-color:var(--button-border)}
.workspace-view .button:hover{filter:brightness(1.08);background:var(--surface-soft)}
.workspace-view .button.primary:hover{background:var(--button)}
.workspace-view .button:active{transform:translateY(1px)}
.workspace-view .button:disabled{background:var(--surface-soft);border-color:var(--line);color:var(--faint);opacity:1;filter:none;cursor:default}
.workspace-view .text-button{display:inline-flex;align-items:center;gap:8px;font:400 12px/1.5 var(--sans);padding:7px 0;background:none;color:var(--secondary);border:0;border-radius:3px;text-decoration:none}
.workspace-view .text-button:hover{color:var(--ink)}
.workspace-view .icon-button{width:36px;height:36px;padding:8px;display:inline-grid;place-items:center;border:0;border-radius:8px;color:var(--secondary);background:none;flex-shrink:0}
.workspace-view .icon-button:hover{color:var(--ink);background:var(--surface-soft)}
.workspace-view .icon-button svg{width:18px;height:18px;fill:none;stroke:currentColor;stroke-width:1.5;stroke-linecap:round;stroke-linejoin:round}
.workspace-view input,.workspace-view textarea{color:var(--ink);background:var(--surface);border-color:var(--line)}
.workspace-view ::selection{background:var(--mark);color:var(--mark-ink)}
.workspace-view .sr-only{position:absolute!important;width:1px!important;height:1px!important;padding:0!important;clip-path:inset(50%);overflow:hidden;white-space:nowrap}
/* The product navigation disappears in a lesson. */
.workspace-view .topbar{height:90px;max-width:1304px;margin:auto;padding:0 52px;border:0;background:transparent}
.workspace-view .brand{height:40px;width:40px;display:inline-grid;place-items:center;border-radius:8px;color:var(--secondary)}
.workspace-view .brand-mark{width:28px;height:28px;stroke:currentColor;stroke-width:1.35}
.workspace-view .room-label,.workspace-view #connection,.workspace-view #timer{display:none!important}
.workspace-view .top-actions{gap:13px}
.workspace-view.in-room:has(#student-back:not([hidden])) .brand,.workspace-view.in-room #account-menu{display:none}
.workspace-view .student-back{display:flex;align-items:center;gap:9px;text-decoration:none;font-size:12px;color:var(--secondary);padding:10px 0}
.student-back>span:first-child{font-size:18px}
.hub-view>.topbar{display:none}
.student-navigation{position:fixed;left:0;top:0;bottom:0;width:184px;display:flex;flex-direction:column;background:var(--nav);padding:26px 17px 20px}
.nav-brand{display:grid;place-items:center;height:40px;width:40px;margin:0 0 39px 7px;color:var(--secondary)!important;border-radius:8px}
.nav-brand svg{height:28px;width:28px;fill:none;stroke:currentColor;stroke-width:1.35;stroke-linecap:round;stroke-linejoin:round}
.nav-links{display:grid;gap:5px}
.nav-links a{display:flex;align-items:center;gap:12px;padding:11px 12px;border-radius:7px;font-size:13px;text-decoration:none;color:var(--secondary)}
.nav-links svg{height:17px;width:17px;fill:none;stroke:currentColor;stroke-width:1.5;stroke-linecap:round;stroke-linejoin:round;flex-shrink:0}
.nav-links a:hover,.profile-link:hover,.nav-brand:hover{background:var(--surface-soft)}
.nav-links a[aria-current=page],.profile-link[aria-current=page]{color:var(--ink);background:var(--surface-soft)}
.nav-links a[aria-current=page] svg{color:var(--accent)}
.profile-link{margin-top:auto;display:flex;align-items:center;gap:11px;padding:10px 9px;border-radius:8px;text-align:left;font-size:13px;text-decoration:none;min-width:0}
.avatar{width:29px;height:29px;border-radius:50%;display:grid;place-items:center;background:var(--surface-soft);border:1px solid var(--line);font-size:12px;color:var(--secondary);flex-shrink:0}
#nav-name{min-width:0;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
#student-hub{margin-left:184px}
.hub-page{max-width:912px;margin:auto;padding:88px 64px 90px}
.hub-page h1{font:450 29px/1.35 var(--sans);letter-spacing:-.8px;margin:0}
.page-heading{display:flex;align-items:center;justify-content:space-between;gap:28px;margin-bottom:38px}
.resume-card{padding:28px 30px 25px;border:1px solid var(--line);background:var(--surface);border-radius:12px;box-shadow:var(--shadow)}
.section-label{font:400 12px/1.4 var(--sans);color:var(--secondary);margin:0 0 16px}
#journey-card-label:empty{display:none}
.resume-card h2{font:400 22px/1.4 var(--sans);letter-spacing:-.55px;margin:14px 0}
.resume-excerpt{font:400 17px/1.75 var(--serif);color:var(--secondary);max-width:570px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;margin:0}
.resume-bottom{display:flex;justify-content:flex-end;margin-top:27px}
.reading-list{margin-top:42px}
.reading-row{display:flex;align-items:center;gap:28px;padding:21px 0;border-top:1px solid var(--line);text-decoration:none;font-size:14px}
.reading-row-info{display:grid;gap:6px;flex:1;min-width:0}.reading-date,.reading-status{font-size:11px;color:var(--secondary)}
.row-arrow{font-size:16px;color:var(--secondary);transition:transform .18s}.reading-row:hover .row-arrow{transform:translateX(3px)}
/* Side by side, with a common text baseline and room to read. */
.workspace-view .workspace{display:grid;grid-template-columns:minmax(0,1fr) minmax(330px,390px);gap:80px;align-items:start;max-width:1304px;height:auto;min-height:calc(100dvh - 90px);padding:42px 52px 80px;margin:auto;overflow:visible}
.workspace-view .reading-column{display:block;min-width:0;max-width:none;padding:0;overflow:visible;position:relative;height:auto}
.workspace-view .article-toolbar{position:static;display:flex;align-items:center;justify-content:space-between;gap:18px;min-height:22px;max-width:none;padding:0;margin:0 0 24px;background:none}
.workspace-view .scope-controls{display:flex;align-items:center;justify-content:space-between;gap:15px;flex:1;margin:0;font:400 12px/1.5 var(--sans);color:var(--secondary)}
.workspace-view .scope-controls button{font:400 11px/1.5 var(--sans);padding:2px 0;color:var(--secondary);min-height:22px}
.workspace-view .article-content,.workspace-view .activity-stage{max-width:none;width:100%;padding:0;margin:0}
.workspace-view .article-header{display:none}
.workspace-view .paragraph-text,.workspace-view .article-content .paragraph-text,.workspace-view .context-paragraph .paragraph-text,.workspace-view .excerpt-card .paragraph-text,.workspace-view .activity-cards.compare .paragraph-text{font:400 19px/1.86 var(--serif);letter-spacing:0;color:var(--body);margin:0;text-align:left}
.workspace-view .paragraph{margin:0 0 28px;padding:0;display:block;border:0;opacity:1}
.workspace-view .paragraph-number,.workspace-view .article-end{display:none}
.workspace-view .context-text{color:var(--context);transition:color .38s}
.workspace-view .focus-text{color:var(--ink);transition:color .38s}
.workspace-view .context-paragraph+.context-paragraph{margin-top:30px}
.workspace-view .source-underline{text-decoration:underline;text-decoration-thickness:1px;text-underline-offset:4px;text-decoration-color:var(--secondary)}
.workspace-view .activity-heading,.workspace-view .activity-answer,.workspace-view #student-dock,.workspace-view .conversation-panel{display:none!important}
.workspace-view .activity-cards{margin:0;gap:20px}
.workspace-view .activity-cards.compare{grid-template-columns:1fr;gap:18px}
.workspace-view .excerpt-card{background:var(--surface);border:1px solid var(--line);border-radius:10px;padding:22px 24px}
.workspace-view .excerpt-heading{font:400 12px/1.5 var(--sans);margin-bottom:12px;color:var(--secondary)}
.workspace-view .activity-cards:not(.compare) .excerpt-card:only-child{padding:0;border:0;background:none}
.workspace-view .activity-slots:not(:empty){margin-bottom:20px}
.workspace-view .selection-slot{font:400 12px/1.5 var(--sans);padding:8px 12px;border-radius:7px}
.workspace-view .selection-slot[aria-pressed=true]{border-color:var(--accent)}
.workspace-view .activity-work{font-size:13px;line-height:1.65}
.workspace-view .selected-evidence{border-radius:8px;background:var(--surface-soft);padding:10px 12px;margin-top:14px;font:400 13px/1.65 var(--sans);color:var(--body);border:0;gap:12px}
.workspace-view .evidence-label{font-size:11px;color:var(--secondary)}
.workspace-view .activity-connections:not(:empty){margin-top:18px}
.workspace-view .connection-label{color:var(--secondary);border-color:var(--line-strong)}
.workspace-view .excerpt-context{margin-top:20px;padding-top:10px;border-top:1px solid var(--line)}
.workspace-view .excerpt-context summary{font:400 12px/1.5 var(--sans);color:var(--secondary);cursor:pointer;padding:7px 0;margin-bottom:8px}
.workspace-view .connect-part{background:var(--surface-soft);border:1px solid var(--line);border-radius:6px;color:var(--secondary);padding:7px 10px;font:400 12px/1.5 var(--sans);margin-top:16px}
.workspace-view .excerpt-selected{border-color:var(--accent)}
.workspace-view mark,.workspace-view .mark-primary{background:var(--mark)!important;color:var(--mark-ink)!important;box-shadow:none!important}
.workspace-view .mark-secondary{background:var(--mark-secondary)!important;color:var(--mark-secondary-ink)!important}
.workspace-view .mark-tertiary{background:var(--mark-tertiary)!important;color:var(--mark-tertiary-ink)!important}
.workspace-view .mark-quaternary{background:var(--mark-quaternary)!important;color:var(--mark-quaternary-ink)!important}
.workspace-view .mark-legend{font:400 11px/1.5 var(--sans);padding:4px 8px}
.workspace-view .selection-actions{position:sticky;bottom:20px;display:flex;justify-content:flex-end;align-items:center;gap:18px;max-width:100%;padding:10px 13px;margin:22px 0 0;border:1px solid var(--line);border-radius:9px;background:var(--surface);color:var(--secondary);box-shadow:var(--shadow);transform:none;left:auto;z-index:4}
.workspace-view #selection-preview{font:400 12px/1.5 var(--sans);flex:1;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;min-width:0;max-width:none}
.workspace-view #selection-actions .button{font-size:11px;min-height:30px;padding:6px 10px;white-space:nowrap}
.workspace-view #save-word{white-space:nowrap}
/* The tutor is a voice in the page, without an avatar or repeated brand. */
.workspace-view .thinking-pane{min-width:0;padding:46px 0 0;overflow:visible;position:sticky;top:32px;max-height:none}
.workspace-view:not(.workspace-started) .thinking-pane{position:static}
.workspace-view .workspace-welcome{padding:0}
.workspace-view .workspace-welcome h1{font:400 25px/1.4 var(--sans);letter-spacing:-.5px;margin:0 0 25px}
.workspace-view .workspace-welcome .tutor-language{margin:0 0 28px}
.workspace-view .workspace-session{display:flex;flex-direction:column;min-height:0}
.workspace-view #workspace-prompt{font:400 17px/1.76 var(--sans);color:var(--ink);letter-spacing:-.15px;margin:0;overflow-wrap:break-word}
.workspace-view #workspace-prompt:empty{display:none}
.workspace-view #workspace-prompt p{white-space:pre-wrap;text-wrap:pretty;margin:0 0 21px}
.workspace-view #workspace-prompt p:last-child{margin-bottom:0}
.workspace-view #workspace-prompt .tutor-lead{font-size:15px;line-height:1.75;color:var(--secondary);margin-bottom:18px}
.workspace-view #workspace-prompt strong{font-weight:500}
.workspace-view #workspace-prompt:lang(ko){font-size:17px;line-height:1.86;letter-spacing:-.32px;word-break:keep-all}
.workspace-view #workspace-prompt:lang(ko) .tutor-lead{line-height:1.85}
.workspace-view #workspace-ready,.workspace-view #workspace-next,.workspace-view .workspace-done{margin:28px 0 0}
.workspace-view #workspace-prompt:focus{outline:none}
.workspace-view .passage-trail{display:flex;align-items:center;gap:16px;min-height:22px;color:var(--secondary);font:400 11px/1.5 var(--sans)}
.passage-position{white-space:nowrap}
.passage-steps{display:flex;align-items:center;gap:5px}
.passage-step{position:relative;width:28px;height:22px;padding:0;border:0;background:transparent;border-radius:4px;cursor:pointer}
.passage-step::after{content:"";position:absolute;left:0;right:0;top:10px;height:2px;background:var(--line-strong);border-radius:2px;transition:background .25s}
.passage-step[data-state="current"]::after{background:var(--accent);height:3px}
.passage-step[data-state="visited"]::after{background:var(--secondary)}
.passage-step:hover:not(:disabled){background:var(--surface-soft)}
.passage-step:disabled{cursor:default;opacity:.5}
.workspace-view .dialog.passage-dialog{width:min(760px,calc(100vw - 64px));max-width:760px;padding:28px 36px 36px}
.workspace-view .passage-dialog .dialog-heading{margin-bottom:27px}
.workspace-view .dialog.passage-dialog h2{font-size:16px;letter-spacing:-.2px}
.workspace-view .passage-review-text{font:400 19px/1.86 var(--serif);color:var(--ink)}
.workspace-view .passage-review-text p{font:inherit;color:inherit;margin:0 0 24px}
.workspace-view .passage-review-text p:last-child{margin-bottom:0}
@media(pointer:coarse){.passage-step{width:40px;height:44px}.passage-step::after{top:21px}}
.workspace-view #workspace-reading-question,.workspace-view #workspace-followup{margin:14px 0 0;display:block}
.workspace-view .workspace-notice{font:400 12px/1.7 var(--sans);color:var(--secondary);margin:17px 0 0}
.workspace-view .workspace-notice:empty{display:none}
.workspace-view #workspace-retry{margin-top:10px;text-decoration:underline;text-underline-offset:4px;color:var(--ink)}
.workspace-view .thinking-form{margin:28px 0 0;border:1px solid var(--line);border-radius:12px;background:var(--surface);transition:border-color .18s,box-shadow .18s;overflow:hidden}
.workspace-view .thinking-form:focus-within{border-color:var(--line-strong);box-shadow:0 0 0 2px color-mix(in srgb,var(--accent) 6%,transparent)}
.workspace-view #thinking-text{display:block;resize:none;width:100%;border:0;outline:none;box-shadow:none;background:transparent;color:var(--ink);min-height:78px;max-height:230px;padding:16px 17px 5px;font:400 14px/1.8 var(--sans);overflow-y:auto;border-radius:0}
.workspace-view #thinking-text::placeholder{color:var(--faint);font-size:inherit;opacity:1}
.workspace-view #thinking-text:lang(ko){font-size:15px;word-break:keep-all}
.workspace-view #thinking-label:not(.sr-only){display:block;padding:13px 17px 0;color:var(--secondary);font-size:12px}
.workspace-view .thinking-footer{display:flex;align-items:center;gap:12px;padding:4px 10px 10px 17px;min-height:43px;flex-wrap:wrap}
.workspace-view #draft-note{font-size:11px;color:var(--faint);opacity:0;margin-right:auto;transition:opacity .15s}
.workspace-view .thinking-form:focus-within #draft-note{opacity:1}
.workspace-view .thinking-footer .text-button{font-size:11px}
.workspace-view .thinking-footer .send-button{height:31px;width:31px;min-height:31px;padding:0;flex:0 0 31px;margin-left:auto;border:1px solid var(--button-border);border-radius:50%;display:grid;place-items:center;background:var(--button);color:var(--on-button);font-size:18px;transition:background .2s,color .2s}
.workspace-view .thinking-footer .send-button:disabled{background:var(--surface-soft);color:var(--faint);border-color:transparent;opacity:1}
.workspace-view .draft-excerpt{display:flex;align-items:flex-start;gap:10px;border-left:2px solid var(--line-strong);margin:15px 16px 0;padding-left:11px;color:var(--secondary);font:400 16px/1.6 var(--serif)}
.workspace-view .draft-excerpt>span{flex:1}.workspace-view .draft-excerpt .icon-button{width:24px;height:24px;padding:3px}
.workspace-view .shared-thought{margin:0 0 29px 28px;background:var(--surface-soft);border:0;border-radius:12px 12px 3px 12px;color:var(--secondary);font:400 13px/1.8 var(--sans);padding:0;overflow-wrap:break-word}
.workspace-view .shared-thought summary{padding:12px 15px;cursor:pointer;list-style:none;color:inherit;font:inherit}
.workspace-view .shared-thought summary::marker,.workspace-view .shared-thought summary::-webkit-details-marker{display:none}
.workspace-view .shared-thought summary>span{display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.workspace-view .shared-thought[open] summary>span{display:block;white-space:pre-wrap}
.workspace-view .quiet-read{margin:14px 0 0;align-self:flex-start;font-size:11px}
.workspace-view .waiting-row{display:flex;align-items:center;justify-content:space-between;min-height:35px;margin-bottom:12px;animation:arrive .2s ease-out}
.workspace-view .waiting-row .icon-button{height:29px;width:29px;padding:6px;border-radius:50%}
.workspace-view .waiting-row .icon-button svg{height:14px;width:14px}
.thinking{display:flex;align-items:center;gap:9px;font-size:13px;color:var(--secondary)}
.thinking-signal{display:flex;align-items:center;width:7px;height:18px}
.thinking-signal i{width:4px;height:4px;border-radius:50%;background:var(--accent);animation:breathe 2.4s ease-in-out infinite}
.thinking-text{background:linear-gradient(105deg,var(--secondary) 36%,var(--ink) 50%,var(--secondary) 64%);background-size:240% 100%;background-clip:text;-webkit-background-clip:text;color:transparent;animation:shimmer 2.8s linear infinite}
@keyframes arrive{from{opacity:0;transform:translateY(3px)}to{opacity:1;transform:translateY(0)}}
@keyframes shimmer{from{background-position:150% 50%}to{background-position:-100% 50%}}
@keyframes breathe{0%,100%{opacity:.4}50%{opacity:.95}}
.workspace-view .answer-choices{border:0;padding:12px 12px 0;margin:0;min-width:0}
.workspace-view #choice-options{display:grid;gap:8px}
.workspace-view .answer-choice{position:relative;display:flex;align-items:flex-start;gap:12px;padding:13px 14px;border:1px solid var(--line);border-radius:9px;background:var(--surface);font:400 13px/1.75 var(--sans);cursor:pointer;transition:border-color .15s,background .15s;color:var(--ink)}
.workspace-view .answer-choice:hover{border-color:var(--line-strong)}
.workspace-view .answer-choice:has(input:checked){border-color:var(--accent);background:var(--accent-soft)}
.workspace-view .answer-choice:has(input:focus-visible){outline:2px solid var(--accent);outline-offset:3px}
.workspace-view .answer-choice input{accent-color:var(--accent);flex-shrink:0;margin-top:5px}
.workspace-view .answer-choice:has(.choice-letter) input{position:absolute;opacity:0;width:20px;height:20px;left:13px;top:14px}
.workspace-view .choice-letter{display:grid;place-items:center;flex:0 0 20px;font-size:11px;color:var(--secondary);height:22px;border-radius:5px;margin:0}
.workspace-view .answer-choice:has(input:checked) .choice-letter{color:var(--accent);background:var(--mark)}
.workspace-view #add-thought{margin:14px 17px 0;font-size:12px}
/* A small notebook and account settings, without synthetic progress metrics. */
.profile-page{max-width:784px}
.profile-input{width:100%;border:1px solid var(--line);border-radius:8px;padding:10px 13px;background:var(--surface);font-size:15px}
.profile-section{padding:27px 0;border-top:1px solid var(--line)}
#profile-form .profile-section{margin-top:32px;border-bottom:0;padding-bottom:16px}
.profile-section h2{font:400 13px/1.5 var(--sans);margin:0 0 14px}
.field-label{display:block;font-size:13px;color:var(--secondary);margin-bottom:12px}
.field-note{color:var(--secondary);font-size:12px;margin:12px 0 0}
.profile-save{display:flex;align-items:center;justify-content:flex-end;gap:16px;margin:4px 0 28px;font-size:12px;color:var(--secondary)}
.segmented,.workspace-view .tutor-language>div{display:inline-flex;padding:3px;gap:3px;border:1px solid var(--line);border-radius:8px;background:var(--nav);flex-wrap:wrap}
.segmented button,.workspace-view .tutor-language button{min-width:82px;min-height:33px;padding:6px 14px;font:400 12px/1.5 var(--sans);border:0;border-radius:5px;color:var(--secondary);background:transparent}
.segmented button[aria-pressed=true],.workspace-view .tutor-language button[aria-pressed=true]{background:var(--surface-soft);color:var(--ink);box-shadow:0 1px 3px #00000008}
.workspace-view .tutor-language{border:0;padding:0;margin:20px 0}
.workspace-view .tutor-language legend{font:400 12px/1.5 var(--sans);color:var(--secondary);margin-bottom:12px;padding:0}
#profile-email{margin:0 0 12px}
.word-list{border-bottom:1px solid var(--line)}.word-list:empty{border:0}
.word-entry{border-top:1px solid var(--line)}
.word-entry>summary{padding:22px 0;display:flex;justify-content:space-between;align-items:center;gap:20px;list-style:none;cursor:pointer}
.word-entry>summary::-webkit-details-marker{display:none}
.word-entry>summary>span:first-child{font:400 22px/1.4 var(--serif);color:var(--ink)}
.word-detail{padding:5px 0 26px;animation:arrive .18s ease-out}
.word-detail blockquote{font:400 17px/1.9 var(--serif);color:var(--body);margin:0 0 14px}
.word-detail mark{background:var(--mark);color:var(--mark-ink);padding:0 2px;border-radius:2px;box-shadow:none}
.word-source{display:inline-block;font-size:11px;color:var(--secondary)!important;margin:0 0 24px;text-decoration:none}
.word-source:hover{text-decoration:underline}
.note-input{display:block;width:100%;resize:vertical;min-height:68px;max-height:220px;padding:13px 14px;border:1px solid var(--line);border-radius:9px;background:var(--surface);font:400 14px/1.8 var(--sans);color:var(--ink)}
.note-input::placeholder{color:var(--faint)}
.word-actions{display:flex;justify-content:space-between;gap:20px;margin-top:15px}
.word-undo{margin-top:22px;display:flex;align-items:center;gap:18px;font-size:12px;color:var(--secondary)}
.empty-vocabulary{padding:28px 0;max-width:400px;color:var(--secondary);font:400 14px/1.8 var(--sans)}
/* Entry, history, preferences and recovery use the same quiet typography. */
.workspace-view .entry{display:block;max-width:340px;margin:90px auto;padding:0}
.workspace-view .entry h1{font:400 27px/1.4 var(--sans);letter-spacing:-.65px;margin:0 0 35px}
.workspace-view .entry-action{display:block;padding:0;border:0;max-width:none}
.workspace-view .google-signin{display:flex;align-items:center;justify-content:center;gap:15px;border:1px solid var(--line);border-radius:8px;background:var(--surface);padding:12px 18px;font:400 13px/1.5 var(--sans);text-decoration:none;color:var(--ink);width:100%}
.workspace-view .google-signin:hover{background:var(--surface-soft)}
.workspace-view .google-signin svg{width:18px;height:18px}
.workspace-view .entry-message{font-size:12px;color:var(--secondary);line-height:1.7;margin:18px 0 0}
.workspace-view .journey{max-width:440px;padding:0 32px;margin:72px auto}
.workspace-view .journey h1{font:400 27px/1.4 var(--sans);letter-spacing:-.65px;margin:0 0 32px}
.workspace-view .journey-intro{font:400 14px/1.8 var(--sans);color:var(--secondary);margin:0 0 28px}
.workspace-view #onboarding-form>label{font-size:13px;color:var(--secondary);display:block;margin-bottom:10px}
.workspace-view #student-name{width:100%;font:400 15px/1.5 var(--sans);padding:10px 13px;border:1px solid var(--line);border-radius:8px;margin:0}
.workspace-view .onboarding-note{font-size:12px;line-height:1.7;color:var(--secondary);margin:0 0 28px}
.workspace-view .dialog{margin:auto;padding:27px 29px;background:var(--surface);color:var(--ink);border:1px solid var(--line);border-radius:13px;width:min(500px,calc(100vw - 48px));max-height:calc(100dvh - 100px);overflow:auto;box-shadow:0 24px 100px #00000020}
.workspace-view .dialog::backdrop{background:var(--scrim);backdrop-filter:blur(4px)}
.workspace-view .dialog-heading{margin:0 0 28px;display:flex;align-items:center;justify-content:space-between;gap:20px}
.workspace-view .dialog h2{font:400 21px/1.4 var(--sans);letter-spacing:-.5px;margin:0}
.workspace-view .history-dialog{width:min(580px,calc(100vw - 48px))}
.workspace-view #history-content .conversation{padding:0;max-height:none;overflow:visible;gap:0}
.workspace-view #history-content .message{padding:22px 0;border-top:1px solid var(--line);background:none;border-radius:0;margin:0;max-width:none}
.workspace-view #history-content .message:first-child{padding-top:0;border:0}
.workspace-view #history-content .message p{font:400 14px/1.9 var(--sans);white-space:pre-wrap;word-break:keep-all;color:var(--ink);margin:9px 0 0}
.workspace-view #history-content .message.reader p{color:var(--secondary)}
.workspace-view #history-content .message-meta{color:var(--secondary);font:400 11px/1.5 var(--sans)}
.workspace-view .student-preferences{border-top:1px solid var(--line);margin-top:28px;padding-top:7px}
.workspace-view .appearance-setting{padding:6px 0 22px}
.workspace-view .appearance-setting>p{font-size:12px;color:var(--secondary);margin:0 0 12px}
.workspace-view .history-exit{display:flex;align-items:center;justify-content:space-between;gap:20px;padding-top:18px;border-top:1px solid var(--line)}
.workspace-view .finish-dialog p{font:400 14px/1.8 var(--sans);color:var(--secondary);margin:20px 0 28px}
.workspace-view .account-menu .menu-content{background:var(--surface);color:var(--ink);border-color:var(--line)}
.workspace-view .error-banner,.workspace-view .toast{font:400 12px/1.6 var(--sans);background:var(--surface);color:var(--ink);border:1px solid var(--line);border-radius:9px;box-shadow:var(--shadow)}
.app-loading{display:grid;place-items:center;min-height:calc(100dvh - 100px)}
.loading-line{width:32px;height:2px;border-radius:2px;background:linear-gradient(90deg,var(--line),var(--secondary),var(--line));background-size:240% 100%;animation:shimmer 2.8s linear infinite}
@media(min-width:1500px){.workspace-view .workspace{padding-top:59px;gap:88px}.workspace-view .topbar{height:100px}}
@media(max-width:1150px){
  .workspace-view .topbar{height:80px;padding:0 38px}.workspace-view .workspace{padding:35px 38px 70px;gap:42px;grid-template-columns:minmax(0,1fr) 335px}
  .workspace-view .paragraph-text,.workspace-view .article-content .paragraph-text,.workspace-view .context-paragraph .paragraph-text,.workspace-view .excerpt-card .paragraph-text,.workspace-view .activity-cards.compare .paragraph-text{font-size:18px;line-height:1.85}
  .workspace-view #workspace-prompt,.workspace-view #workspace-prompt:lang(ko){font-size:16px}
  .student-navigation{width:168px;padding-left:13px;padding-right:13px}#student-hub{margin-left:168px}.hub-page{padding:75px 45px}
}
@media(max-width:950px){
  .workspace-view .workspace{grid-template-columns:minmax(0,1fr) minmax(0,.88fr);gap:32px;padding:30px 30px 65px}.workspace-view .topbar{padding:0 30px}
  .workspace-view .paragraph-text,.workspace-view .article-content .paragraph-text,.workspace-view .context-paragraph .paragraph-text,.workspace-view .excerpt-card .paragraph-text,.workspace-view .activity-cards.compare .paragraph-text{font-size:17px;line-height:1.9}
  .workspace-view #workspace-prompt,.workspace-view #workspace-prompt:lang(ko){font-size:15px;line-height:1.85}.workspace-view #workspace-prompt .tutor-lead{font-size:14px}
  .workspace-view .shared-thought{margin-left:12px;font-size:12px}.workspace-view .answer-choice{font-size:12px;gap:7px;padding:12px 10px}
  .student-navigation{width:154px}#student-hub{margin-left:154px}.nav-links a{gap:9px;padding:11px 9px;font-size:12px}.hub-page{padding:65px 34px}.hub-page h1{font-size:26px}.resume-card{padding:25px}
}
@media(max-width:740px){
  .workspace-view .workspace{display:block;max-width:640px;height:auto}.workspace-view .thinking-pane{position:static;padding-top:28px;margin-top:30px;border-top:1px solid var(--line)}
  .student-navigation{width:64px;padding:21px 8px 16px}.nav-brand{margin:0 0 30px 4px}.nav-links a{justify-content:center;padding:12px 0}.nav-links a>span,.profile-link>span:last-child{display:none}.profile-link{justify-content:center;padding:9px 0}#student-hub{margin-left:64px}.hub-page{padding:43px 25px 70px}
}
@media(pointer:coarse){
  .workspace-view .icon-button,.workspace-view .text-button,.workspace-view .student-back,.nav-links a{min-height:44px}
  .workspace-view .thinking-footer .send-button{width:39px;height:39px;flex-basis:39px}.workspace-view #thinking-text{font-size:16px}.workspace-view #draft-note{display:none}
  .segmented button,.workspace-view .tutor-language button{min-height:40px}.workspace-view #selection-actions button{min-height:40px}
}
@media(pointer:coarse) and (min-width:741px){.workspace-view .article-toolbar{min-height:44px}.workspace-view .thinking-pane{padding-top:68px}}
@media(prefers-reduced-motion:reduce){.workspace-view *,.workspace-view *::before,.workspace-view *::after{animation:none!important;transition:none!important;scroll-behavior:auto!important}.thinking-text{background:none;color:var(--secondary)}.thinking-signal i{opacity:.8}.loading-line{animation:none}}
.workspace-view .thinking-form:has(.answer-choices:not([hidden])){border:0;background:none;box-shadow:none;overflow:visible}
.workspace-view .thinking-form:has(.answer-choices:not([hidden])) .answer-choices{padding:0}
.workspace-view .thinking-form:has(.answer-choices:not([hidden])) .thinking-footer{padding:10px 0 0}
.workspace-view .thinking-form:has(.answer-choices:not([hidden])) #add-thought{margin-left:0}
.workspace-view .thinking-form:has(.answer-choices:not([hidden])) #thinking-text{margin-top:14px;border:1px solid var(--line);background:var(--surface);border-radius:9px;min-height:68px}