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.card-row{position:relative;cursor:pointer}.card-row-open{display:flex;align-items:center;gap:16px;flex:1;min-width:0;padding:0;text-align:left}.card-row-open::after{content:"";position:absolute;inset:0}.card-row-open:focus-visible{outline:none}.card-row-open:focus-visible::after{outline:3px solid #91c4b5;outline-offset:-3px}.card-row:has(.card-row-open:hover){background:#f8faf6}.card-row [data-edit-card]{position:relative;z-index:1}
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.library-search{display:flex;align-items:flex-end;gap:12px;padding:0 25px 20px;flex-wrap:wrap}.library-search .field{flex:1;min-width:170px;margin:0}.search-summary{padding:0 25px 12px;margin:0;font-size:12px;color:var(--muted)}
.topbar .profile-control{display:flex;align-items:center;gap:14px;flex-wrap:wrap}.language-control,.topbar .profile-control .language-control{display:flex;align-items:center;gap:7px;font-size:11px;color:var(--muted)}.language-control>span{position:absolute;width:1px;height:1px;padding:0;overflow:hidden;clip-path:inset(50%);white-space:nowrap}.language-control select{padding:8px 10px;border:1px solid var(--line);border-radius:8px;background:var(--white);color:var(--green-dark);max-width:160px}.language-control select:focus-visible{outline:2px solid var(--green);outline-offset:2px}.consent-language{display:flex;justify-content:flex-end;padding:18px 24px}@media(max-width:800px){.topbar .profile-control{gap:10px}.topbar .profile-control select{max-width:140px}.study-below{flex-wrap:wrap}.btn{white-space:normal}}
.discussion{padding:26px 30px;margin-top:30px}.discussion-heading{display:flex;align-items:center;justify-content:space-between;gap:15px}.discussion-heading h2{font-size:22px;margin:0}.discussion-heading .eyebrow{font-size:9px;margin-bottom:7px}.discussion-account{display:flex;justify-content:space-between;align-items:center;gap:16px;margin:22px 0;padding-bottom:20px;border-bottom:1px solid var(--line)}.discussion-account p{font-size:12px;margin:0}.discussion-account strong{font-size:13px;overflow-wrap:anywhere}.discussion-account small{display:block;color:var(--muted);font-size:11px;margin-top:3px}.chat-login{padding:18px;background:var(--soft);border-radius:10px;margin:16px 0}.chat-login p{font-size:12px;margin-bottom:12px}.chat-code{display:flex;align-items:center;gap:15px;margin:12px 0 18px}.chat-code code{font-size:22px;font-weight:700;letter-spacing:2px}.chat-login a{text-decoration:none}.chat-messages{max-height:520px;overflow-y:auto;margin:18px 0;overscroll-behavior:contain}.chat-message{padding:16px 18px;border-radius:11px;margin-bottom:12px;font-size:14px;line-height:1.75;overflow-wrap:anywhere}.chat-message>strong{font-size:10px;display:block;margin-bottom:6px;color:var(--muted)}.chat-message>div{white-space:pre-wrap}.chat-message.user{background:#f1f5ef;margin-left:25px}.chat-message.assistant{background:#fafbf8;border:1px solid var(--line);margin-right:15px}.chat-hint{font-size:12px;line-height:1.7}.chat-footer{display:flex;align-items:center;justify-content:space-between;gap:16px}.chat-footer small{font-size:11px;color:var(--muted)}.chat-footnote{font-size:10px;line-height:1.7;margin:20px 0 0;color:#8a948a}.discussion textarea{font-size:14px}.discussion .field{margin-bottom:12px}@media(max-width:800px){.discussion{padding:23px 20px}.discussion-heading{align-items:flex-start}.discussion-heading h2{font-size:20px}.discussion-account{flex-wrap:wrap}.chat-message.user{margin-left:12px}.chat-message.assistant{margin-right:0}.chat-footer{align-items:flex-end}}

/* Markdown is laid out as blocks; only plain user messages preserve every newline. */
.chat-message > .markdown-body { white-space: normal; min-width: 0; }
.markdown-body { color: inherit; }
.markdown-body > :first-child { margin-top: 0; }
.markdown-body > :last-child { margin-bottom: 0; }
.markdown-body p { color: inherit; margin: 0 0 .9em; }
.markdown-body h1, .markdown-body h2, .markdown-body h3,
.markdown-body h4, .markdown-body h5, .markdown-body h6 {
  color: var(--green-dark); font-weight: 650; line-height: 1.4;
  letter-spacing: normal; margin: 1.3em 0 .6em;
}
.markdown-body h1 { font-size: 1.45em; }
.markdown-body h2 { font-size: 1.3em; }
.markdown-body h3 { font-size: 1.15em; }
.markdown-body h4, .markdown-body h5, .markdown-body h6 { font-size: 1em; }
.markdown-body ul, .markdown-body ol { padding-left: 1.65em; margin: 0 0 1em; }
.markdown-body li { margin: .3em 0; padding-left: .15em; }
.markdown-body li > ul, .markdown-body li > ol { margin: .35em 0; }
.markdown-body li > p { margin: .4em 0; }
.markdown-body blockquote { margin: 1em 0; border-left: 3px solid #91b9a8; padding: .2em 1em; background: var(--soft); }
.markdown-body blockquote > :last-child { margin-bottom: 0; }
.markdown-body a { text-decoration: underline; text-underline-offset: 2px; }
.markdown-body code { font-family: ui-monospace, Consolas, monospace; font-size: .9em; padding: .12em .35em; border-radius: 4px; background: #eaf0e9; }
.markdown-body pre { max-width: 100%; overflow: auto; padding: 14px 16px; border: 1px solid var(--line); border-radius: 8px; background: #f0f3ed; white-space: pre; line-height: 1.55; margin: 1em 0; }
.markdown-body pre code { background: none; border-radius: 0; padding: 0; overflow-wrap: normal; }
.markdown-body hr { margin: 1.3em 0; border: 0; border-top: 1px solid var(--line); }
.markdown-table { max-width: 100%; overflow-x: auto; margin: 1em 0; border: 1px solid var(--line); border-radius: 8px; }
.markdown-table:focus-visible { outline: 3px solid #91c4b5; outline-offset: 2px; }
.markdown-table table { border-collapse: collapse; width: 100%; font-size: .95em; }
.markdown-table th, .markdown-table td { padding: .6em .8em; text-align: left; border-bottom: 1px solid var(--line); min-width: 100px; }
.markdown-table th { font-weight: 650; background: var(--soft); }
.markdown-table tbody tr:last-child td { border-bottom: 0; }
.chat-mode { display:flex; flex-wrap:wrap; align-items:center; gap:8px; padding:12px 0; }
.chat-mode button { padding:7px 10px; border-radius:9px; }
.chat-mode [aria-pressed="true"] { background:#e5f2ec; color:#176b57; font-weight:700; }
.chat-mode [data-chat-history] { margin-left:auto; font-size:12px; }
openai-chatkit.chatkit-widget { display:block; width:100%; height:620px; max-height:78vh; min-height:380px; }
[hidden]{display:none!important}
#account-gate{max-width:620px;margin:60px auto;padding:0 20px}.auth-card{padding:36px}.auth-card h1{font-size:32px}.auth-card p{line-height:1.7}.auth-card form{margin-top:28px}.auth-card .btn{width:100%}.auth-card [data-auth-toggle]{margin-top:20px}.auth-note{font-size:12px;color:var(--muted)}.form-error:not(:empty){color:#934632;background:#fff1ec;padding:12px;border-radius:8px;margin-bottom:16px}.account-features{padding:10px 0}.account-notice{padding:14px;background:var(--soft);border-radius:8px;line-height:1.7}.plan-form{border-top:1px solid var(--line);padding:22px 0}.plan-fields{display:grid;grid-template-columns:1fr 1.3fr 1fr;gap:10px;margin-top:18px}.plan-result{margin-left:12px;color:var(--green);font-size:12px}.profile-control button{font-size:12px;max-width:230px;overflow-wrap:anywhere}@media(max-width:600px){.auth-card{padding:24px}.plan-fields{grid-template-columns:1fr}.topbar .profile-control{width:100%}#account-gate{margin-top:30px}}
/* Dictation stays next to the editable question, independent of card controls. */
.voice-controls { display:flex; flex-wrap:wrap; gap:10px; align-items:center; margin-top:12px; }
.voice-controls small { color:var(--muted,#63736c); }
.microphone { display:inline-flex; gap:8px; align-items:center; }
.voice-controls .recording { color:#a32323; border-color:#d98686; background:#fff5f5; }

/* Approved card + question layout. Check marks encode selection only. */
.study-heading h1{font-size:23px;margin:0 0 22px;line-height:1.4}
.study-top{margin-bottom:12px}
.study-shell{background:#fff;border:1px solid #dbe3df;border-radius:18px;box-shadow:var(--shadow);overflow:hidden}
.study-shell .study-card{border:0;border-radius:0;box-shadow:none;padding:27px 30px 22px}
.study-card .study-meta{margin-bottom:18px}.study-card .question{font-size:22px}
.study-card .question-hint{margin-bottom:20px}.study-card .answer-list{gap:8px}
.study-card .answer{position:relative;min-height:52px;padding:13px 15px;gap:13px;border-color:#dde3e0;background:#fff}
.study-card .answer.selected{background:#f4f6f5;border-color:#a8b4af}
.study-card .answer.correct{background:#e9f5ed;border-color:#9ec8ac}
.study-card .answer input{position:absolute;opacity:0;width:22px;height:22px;left:15px;top:14px;margin:0}
.study-card .answer .answer-mark{display:grid;place-items:center;flex:0 0 22px;width:22px;height:22px;border:1px solid #b9c2bd;border-radius:6px;background:#fff;color:#56616c;font-size:17px;font-weight:650;line-height:1;margin-top:2px}
.study-card .answer input:focus-visible + .answer-mark{outline:3px solid #659986;outline-offset:3px}
.study-card .answer .answer-text{font-size:15px;min-width:0}
.study-card .study-result:empty{display:none}.study-card .study-result{font-size:12px;margin-top:14px;min-height:0}
.study-card .study-actions{margin-top:19px;padding-top:18px}
.study-shell .discussion{padding:22px 30px 0;margin:0;border-top:1px solid #e5ebe7;overflow:visible}
.composer-heading{display:flex;justify-content:space-between;align-items:center;gap:12px;margin-bottom:12px}
.composer-heading>label{font-weight:600;font-size:14px;line-height:1.4}
.chat-settings{font-size:11px;color:#68796d;position:relative;flex-shrink:0}
.chat-settings summary{cursor:pointer;list-style:none;display:flex;align-items:center;gap:6px;padding:7px 0}
.chat-settings summary::-webkit-details-marker{display:none}.chat-settings summary:after{content:'⌄';margin-left:3px}
.chat-settings i{background:#579273;width:6px;height:6px;border-radius:50%}
.chat-settings-body{position:absolute;right:0;top:100%;z-index:3;width:260px;padding:16px;border:1px solid var(--line);background:#fff;box-shadow:0 8px 24px #17332414;border-radius:10px;overflow-wrap:anywhere}
.chat-settings-body p{font-size:11px;line-height:1.6;margin:9px 0}
.question-composer{border:1px solid #ccd8d0;border-radius:12px;padding:12px;background:#fff}
.question-composer:focus-within{border-color:#7da38e;box-shadow:0 0 0 2px #568d6e0a}
.question-composer textarea{display:block;border:0;outline:0;background:transparent;color:inherit;width:100%;resize:vertical;min-height:64px;max-height:250px;font:inherit;font-size:14px;line-height:1.6;padding:2px 3px 10px}
.question-composer textarea::placeholder{color:#929c96}
.composer-actions{display:flex;align-items:center;justify-content:space-between;gap:12px}
.composer-actions .voice-controls{margin:0;gap:8px;flex:1;min-width:0}
.composer-mic{width:34px;height:34px;justify-content:center;border-radius:8px;color:#537461;background:#eef3ef;flex-shrink:0}
.composer-mic:hover:not(:disabled){background:#dfece3}.voice-status{font-size:10px;line-height:1.4}
.dialogue-archive{border-top:1px solid #e6ebe8;margin-top:20px}
.archive-toggle{display:flex;justify-content:space-between;align-items:center;gap:12px;width:100%;padding:18px 0;text-align:left;font-size:12px;color:#65766b}
.archive-count{background:#f0f3f1;border-radius:6px;padding:2px 7px;font-size:10px}
.archive-list{padding-bottom:15px}.archive-row{width:100%;display:flex;text-align:left;align-items:center;gap:15px;padding:13px 10px;border-top:1px solid #edf0ee;border-radius:5px}
.archive-row:hover,.archive-row.active{background:#f5f8f5}.archive-date{font-size:10px;color:#88968d;flex:0 0 105px;line-height:1.7}
.archive-copy{flex:1;min-width:0}.archive-copy strong{display:block;font-size:12px;line-height:1.5;overflow-wrap:anywhere;font-weight:600}
.archive-copy small{display:block;font-size:11px;color:#7f8a83;line-height:1.5;margin-top:3px;overflow-wrap:anywhere}
.archive-copy em{font-size:10px;display:block;color:#8b8264;font-style:normal;margin-top:4px}
.dialogue-heading{display:flex;gap:12px;justify-content:space-between;align-items:start;padding-top:22px}
.dialogue-heading strong{font-size:13px;line-height:1.5;display:block;overflow-wrap:anywhere}.dialogue-heading small{font-size:10px;color:var(--muted);display:block;margin-top:4px}
.dialogue-heading .text-button{flex-shrink:0}.discussion .chat-messages{margin:16px 0 0;max-height:520px}
.discussion .chat-message{font-size:13px}.old-discussion,.old-card{font-size:12px;line-height:1.7;background:#f7f6f1;padding:12px;border-radius:8px;margin:12px 0}
.old-card p{font-size:12px;white-space:pre-wrap;overflow-wrap:anywhere;margin:8px 0 0}
.study-below{align-items:center}
@media(max-width:800px){.study-shell .study-card{padding:23px 20px 20px}.study-shell .discussion{padding:20px 20px 0}.study-card .question{font-size:20px}.study-heading h1{font-size:21px}.composer-heading{flex-wrap:wrap;gap:2px}.chat-settings-body{left:0;right:auto}.composer-actions{gap:8px}.composer-actions .voice-status{max-width:130px}.archive-row{gap:10px;padding:12px 0}.archive-date{flex-basis:80px}.dialogue-heading{flex-wrap:wrap}.study-below{align-items:flex-start}.study-below .text-button{padding:0;text-align:right}}
.chat-actions { display:flex; flex-wrap:wrap; gap:6px; margin:6px 0; }
.chat-actions:empty { display:none; }
.chat-actions span { font-size:12px; color:var(--muted,#596260); background:#f2f4f3; padding:4px 8px; border-radius:6px; }
.study-next{display:flex;justify-content:flex-end;margin-top:18px}.study-next:empty{display:none}.study-next .btn{min-width:145px}.study-card .question{scroll-margin-top:24px}.remove-set-button{color:#8a6257}.remove-set-button:hover{background:#faf0eb;border-color:#e5cfc3}@media(max-width:800px){.study-next .btn{width:100%}}
.panel-head h2.set-title{margin-top:10px}.sharing-heading{margin-top:28px}.disable-sharing{margin-top:12px}
/* External discussion link uses the existing study controls and typography. */
.chatgpt-handoff { margin: 1rem 0; }
.chatgpt-handoff [aria-disabled="true"] { opacity: .55; cursor: default; }