/* One conversation surface, flat word lists, progressive disclosure. */
.content-wrap:has(.assistant-redesign){grid-template-columns:minmax(0,1fr);max-width:1160px;padding-top:24px;padding-bottom:16px}
.content-wrap:has(.assistant-redesign)>.right-rail{display:none}
.assistant-redesign{position:relative;display:flex;flex-direction:column;height:calc(100dvh - 135px);min-height:480px;max-height:1000px;background:var(--surface);border:1px solid var(--border);border-radius:18px;overflow:hidden;box-shadow:0 5px 25px rgb(30 50 40 / 2%)}
.assistant-redesign .assistant-top{flex-shrink:0;padding:18px 24px;gap:12px;border-bottom:1px solid var(--border)}
.assistant-redesign .assistant-top h1{font-size:22px;line-height:1.3;letter-spacing:-.025em;margin:0}
.assistant-redesign .assistant-top>div>span{font-size:12px;line-height:1.5;margin-top:3px;display:block;color:var(--muted)}
.assistant-redesign .assistant-avatar{width:40px;height:40px;border-radius:12px;background:var(--soft)}
.assistant-redesign .chat-clear{margin-left:auto;min-height:40px;font-size:12px;opacity:.8}
.assistant-redesign .messages{height:auto;min-height:0;flex:1;display:flex;flex-direction:column;gap:28px;padding:28px 32px;overflow-y:auto;overflow-x:hidden;overscroll-behavior:contain;scrollbar-gutter:stable;scroll-behavior:smooth}
.assistant-redesign .message{flex-shrink:0;max-width:100%;margin:0;padding:0;white-space:normal;box-shadow:none;border:0;border-radius:0;line-height:1.65}
.assistant-redesign .message.bot{width:100%;max-width:760px;align-self:flex-start;background:transparent;color:var(--ink)}
.assistant-redesign .message.bot>span{font-size:10px;letter-spacing:.1em;color:var(--muted);font-weight:600;display:block;margin-bottom:8px}
.assistant-redesign .message>p{font-size:15px;line-height:1.75;white-space:pre-wrap;overflow-wrap:anywhere;margin:0}
.assistant-redesign .message.user{max-width:80%;align-self:flex-end;background:var(--soft);color:var(--ink);border-radius:15px 15px 4px 15px;padding:10px 16px}
.assistant-redesign .message.user>span{display:none}
.assistant-redesign .message.user>p{font-size:14px}
.assistant-word-results{margin-top:16px;white-space:normal}
.assistant-vocab{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));list-style:none;padding:0;margin:0;column-gap:28px}
.assistant-vocab>li{display:flex;align-items:center;gap:12px;min-width:0;padding:13px 0;border-top:1px solid var(--border);background:none;border-radius:0}
.assistant-word-pair{min-width:0;flex:1}
.assistant-word-pair strong{display:block;font-size:19px;line-height:1.35;font-weight:600;letter-spacing:-.015em;color:var(--accent);overflow-wrap:anywhere}
.assistant-word-pair>span{display:block;color:var(--muted);font-size:13px;line-height:1.5;margin-top:3px;overflow-wrap:anywhere}
.assistant-word-add,.assistant-word-saved{display:grid;place-items:center;flex:none;width:36px;height:36px;border-radius:50%;color:var(--accent)}
.assistant-word-add{border:1px solid var(--border);background:transparent;transition:background .16s,border-color .16s}
.assistant-word-add:hover{background:var(--soft);border-color:var(--accent)}
.assistant-word-tools{display:flex;gap:12px 24px;flex-wrap:wrap;align-items:flex-start;padding-top:10px;font-size:12px;color:var(--muted)}
.assistant-more-words{font-size:12px;color:var(--accent);min-height:32px;text-decoration:underline;text-underline-offset:4px}
.assistant-sources{min-width:0;flex:1 1 180px}.assistant-sources summary{cursor:pointer;min-height:32px;line-height:32px;font-size:12px;color:var(--muted)}
.assistant-sources ul{list-style:none;padding:8px 0;margin:0;font-size:12px;line-height:1.7;color:var(--muted)}
.assistant-sources li{padding:3px 0;overflow-wrap:anywhere}.assistant-sources strong{font-weight:500;color:var(--ink)}
.assistant-redesign .chat-links{display:flex;flex-wrap:wrap;gap:8px;margin-top:14px}.assistant-redesign .chat-links .button{font-size:12px;line-height:1.5;white-space:normal;text-align:left;min-height:38px}
.assistant-redesign .assistant-welcome{flex-shrink:0;width:100%;max-width:660px;margin:auto;text-align:left;padding:12px 0}
.assistant-redesign .welcome-icon{display:none}
.assistant-redesign .assistant-welcome h2{font-size:28px;line-height:1.25;letter-spacing:-.035em;margin:0 0 12px}
.assistant-redesign .assistant-welcome>p{font-size:14px;line-height:1.7;max-width:520px;margin:0;color:var(--muted)}
.assistant-starters{display:grid;grid-template-columns:1fr 1fr;gap:0 24px;margin-top:24px}
.assistant-starters>button{padding:18px 0;border:0;border-top:1px solid var(--border);background:none;text-align:left;min-height:90px}
.assistant-starters>button:hover strong{color:var(--accent)}
.assistant-starters strong{display:block;font-size:14px;font-weight:600;margin-bottom:6px}.assistant-starters span{display:block;font-size:12px;line-height:1.6;color:var(--muted)}
.assistant-compose-heading{display:flex;align-items:center;justify-content:space-between;gap:12px;flex-shrink:0;padding:8px 24px 4px;border-top:1px solid var(--border)}
.assistant-example-toggle{min-height:32px;font-size:12px;color:var(--accent)}
.assistant-compose-heading>span{font-size:10px;color:var(--muted)}
.assistant-redesign .chat-chips{display:flex;gap:8px;flex-wrap:wrap;flex-shrink:0;margin:0;padding:10px 24px;border-top:1px solid var(--border)}
.assistant-redesign .chat-chips button{font-size:12px;min-height:34px;padding:6px 12px;border-radius:18px;background:var(--bg)}
.assistant-redesign .message-form{display:flex;align-items:flex-end;gap:12px;margin:0 24px;padding:10px 10px 10px 14px;background:var(--bg);border:1px solid var(--border);border-radius:13px;flex-shrink:0}
.assistant-redesign .message-form:focus-within{border-color:var(--accent)}
.assistant-redesign textarea{flex:1;min-width:0;width:100%;resize:none;background:none;border:0;outline:0;font:inherit;font-size:14px;line-height:1.6;color:var(--ink);padding:2px 0;max-height:130px}
.assistant-redesign textarea::placeholder{color:var(--muted)}
.assistant-redesign .message-form>.button{width:42px;min-width:42px;height:42px;min-height:42px;padding:0;flex-shrink:0;border-radius:10px}
.assistant-redesign .assistant-disclaimer{padding:0;margin:9px 24px 12px;flex-shrink:0;font-size:10px;line-height:1.5;color:var(--muted)}
.assistant-redesign .assistant-disclaimer svg{display:none}
.assistant-latest{position:absolute;bottom:155px;left:50%;transform:translateX(-50%);max-width:90%;border:1px solid var(--border);box-shadow:0 3px 12px rgb(0 0 0 / 5%);border-radius:20px;padding:8px 14px;background:var(--surface);color:var(--accent);font-size:12px;z-index:2}
.assistant-clear-confirm{display:flex;align-items:center;gap:8px;flex-wrap:wrap;padding:12px 24px;background:var(--soft);border-bottom:1px solid var(--border)}
.assistant-clear-confirm p{flex:1 1 250px;margin:0;font-size:13px;line-height:1.5}
.assistant-redesign .quiz-card{flex-shrink:0;margin:0;padding:22px;background:var(--bg);border:1px solid var(--border);border-radius:14px}
.assistant-quiz-head{display:flex;align-items:center;justify-content:space-between;gap:12px;flex-wrap:wrap}.quiz-stop{min-height:36px;font-size:12px;color:var(--muted);text-decoration:underline;text-underline-offset:3px}
.assistant-redesign .quiz-card h3{font-size:21px;line-height:1.45;margin:14px 0}
.assistant-redesign button:focus-visible,.assistant-sources summary:focus-visible{outline:2px solid var(--accent);outline-offset:3px}
@media(max-width:760px){
 .content-wrap:has(.assistant-redesign){padding-top:12px;padding-bottom:12px}
 .assistant-redesign{height:calc(100dvh - 145px);min-height:450px;border-radius:13px}
 .assistant-redesign .assistant-top{padding:14px 16px}.assistant-redesign .assistant-top h1{font-size:20px}.assistant-redesign .assistant-top>div>span{font-size:10px}
 .assistant-redesign .assistant-avatar{width:34px;height:34px}.assistant-redesign .messages{padding:20px 16px;gap:24px}
 .assistant-redesign .message>p{font-size:14px}.assistant-redesign .message.user{max-width:90%}
 .assistant-vocab{grid-template-columns:1fr;gap:0}.assistant-vocab>li{padding:10px 0}.assistant-word-pair strong{font-size:18px}.assistant-word-add{width:40px;height:40px}
 .assistant-starters{gap:0 16px}.assistant-starters strong{font-size:13px}.assistant-starters span{font-size:11px}.assistant-redesign .assistant-welcome h2{font-size:24px}
 .assistant-compose-heading{padding:6px 16px 2px}.assistant-compose-heading>span{display:none}
 .assistant-redesign .message-form{margin:0 12px;padding:8px 8px 8px 12px}.assistant-redesign textarea{font-size:16px}
 .assistant-redesign .assistant-disclaimer{margin:7px 14px 10px;font-size:9px}.assistant-redesign .chat-chips{padding:8px 14px;gap:6px}
 .assistant-latest{bottom:140px;white-space:nowrap}.assistant-clear-confirm{padding:12px 16px}
}
@media(prefers-reduced-motion:reduce){.assistant-redesign .messages{scroll-behavior:auto}}