/* style.css 는 Codex 목업 원본 그대로 둔다. 실제 동작에 필요한 보충만 여기에 둔다. */
.field-error{display:block;margin-top:6px;font-size:12px;font-weight:500;color:var(--orange)}
.form-field input.invalid{border-color:var(--orange)}
.alert{font-size:13px;padding:12px 15px;border-radius:10px;margin-top:16px;background:var(--peach);color:var(--orange)}
.alert.ok{background:var(--mint);color:var(--green)}
.hp-field{position:absolute;left:-9999px;width:1px;height:1px;overflow:hidden}
.nav-form{display:inline}
.nav-form button{border:0;background:none;padding:0;color:var(--muted);font-size:13px}
.inline-form{display:inline}
.passage img,.question-group img.stem-image{max-width:100%;height:auto;display:block;margin:10px auto}
.passage p+p{margin-top:10px}
.example-box{margin:0 0 18px;padding:14px 18px;border:1px dashed #c9d6cc;border-radius:11px;font-size:13px;color:var(--muted)}
.stem{font-size:15px;line-height:1.9;margin-bottom:14px}
.picture-option img{display:block;width:100%;height:auto;margin-top:10px;border-radius:8px;background:#f6f7f1}
audio.native-audio{display:none}
.audio-play{font-size:15px}
.answer-option.is-correct{background:#ebf6ee;border-color:var(--green)}
.answer-option.is-wrong{background:#fff8f2;border-color:#dfa16e}
.answer-option .mark{margin-left:auto;font-size:12px;font-weight:700;white-space:nowrap}
.answer-option.is-correct .mark{color:var(--green)}
.answer-option.is-wrong .mark{color:var(--orange)}
.review summary{cursor:pointer;font-weight:700;color:var(--green);font-size:14px}
.review .card{box-shadow:none}
.save-state{font-size:11px;color:var(--muted);min-height:18px;margin-top:10px}
.save-state.error{color:var(--orange)}
.tab-links a[aria-current=page]{background:var(--mint);border-color:var(--green);color:var(--green);font-weight:700}
.type-option.disabled{opacity:.55}
.empty-state{text-align:center;padding:36px 20px;color:var(--muted)}

/* AI 질문: 기존 종이색·민트색 카드와 함께 쓰는 대화 화면. */
.ai-page{max-width:960px;margin:0 auto;min-width:0;color:var(--ink)}
.ai-page .page-heading h1{font-size:clamp(25px,3.5vw,36px);line-height:1.45;word-break:keep-all;overflow-wrap:anywhere}
.ai-page .page-heading{flex-wrap:wrap;gap:18px}
.ai-page .page-heading>div:first-child{flex:1 1 360px;min-width:0}
.ai-model-controls{flex:0 1 280px;min-width:0;max-width:100%;font-size:12px}
.ai-model-status{display:flex;align-items:center;gap:6px;margin-top:8px;color:var(--muted);overflow-wrap:anywhere}
.ai-model-status>span:last-child{min-width:0}
.ai-model-dot{width:7px;height:7px;border-radius:50%;background:var(--muted);flex-shrink:0}
.ai-model-status.is-connected .ai-model-dot{background:var(--green)}
.ai-model-status.is-disconnected .ai-model-dot{background:var(--orange)}
.ai-chat.card{padding:0;overflow:hidden;box-shadow:var(--shadow)}
.ai-chat-heading{padding:24px 28px 20px;margin:0;border-bottom:1px solid var(--line);gap:16px}
.ai-chat-heading h2{font-size:19px}.ai-chat-heading p{margin-top:5px}
.ai-chat-heading .button{flex-shrink:0}
.ai-notice{margin:16px 24px 0;background:var(--peach);color:var(--ink)}
.ai-retry{border:0;background:transparent;color:var(--green-dark);font:inherit;text-decoration:underline;text-underline-offset:3px;cursor:pointer;padding:4px}
.ai-conversation{height:clamp(320px,52vh,620px);overflow-y:auto;overscroll-behavior-y:contain;padding:28px;background:var(--paper);scrollbar-gutter:stable;overflow-anchor:none}
.ai-messages{display:flex;flex-direction:column;gap:24px;min-width:0}
.ai-empty{text-align:center;max-width:620px;margin:12px auto 24px}
.ai-empty-mark{display:grid;place-items:center;margin:0 auto 16px;width:48px;height:48px;border-radius:18px 18px 18px 5px;background:var(--mint);color:var(--green);font-size:27px;font-weight:700;transform:rotate(-6deg)}
.ai-empty h3{font-size:21px;margin-bottom:8px}.ai-empty>p{line-height:1.8}
.ai-suggestions{display:flex;justify-content:center;flex-wrap:wrap;gap:9px;margin-top:23px}
.ai-suggestion{border:1px solid var(--line);border-radius:16px;background:var(--white);color:var(--green-dark);padding:11px 15px;font:inherit;font-size:13px;line-height:1.6;text-align:left;cursor:pointer;max-width:100%;overflow-wrap:anywhere;transition:background .15s,border-color .15s}
.ai-suggestion:hover:not(:disabled){background:var(--mint);border-color:var(--green)}
.ai-message{max-width:90%;min-width:0;align-self:flex-start}
.ai-message-user{align-self:flex-end;max-width:82%}
.ai-message-label{font-size:11px;color:var(--muted);margin:0 4px 7px;font-weight:600}
.ai-message-user .ai-message-label{text-align:right}
.ai-bubble{min-width:0;padding:18px 20px;background:var(--white);border:1px solid var(--line);border-radius:5px 20px 20px 20px;font-size:14px;line-height:1.85;overflow-wrap:anywhere}
.ai-message-user .ai-bubble{background:var(--mint);border-color:var(--mint);border-radius:20px 5px 20px 20px}
.ai-plain,.ai-streaming{white-space:pre-wrap}
.ai-streaming::after{content:'';display:inline-block;width:2px;height:1em;margin-left:4px;vertical-align:-.1em;background:var(--green);animation:ai-blink 1s step-end infinite}
@keyframes ai-blink{50%{opacity:0}}
.ai-answer-meta{display:flex;flex-wrap:wrap;gap:8px;margin-bottom:10px;align-items:center}
.ai-tool-chips{display:flex;flex-wrap:wrap;gap:5px}.ai-tool-chips .tag{font-size:10px;padding:3px 8px;white-space:normal}
.ai-error{border-top:1px solid var(--line);margin-top:12px;padding-top:10px;color:var(--orange);font-size:12px;white-space:pre-wrap}
.ai-answer>:first-child{margin-top:0}.ai-answer>:last-child{margin-bottom:0}
.ai-answer p{margin:10px 0}.ai-answer ul,.ai-answer ol{padding-left:24px;margin:12px 0}.ai-answer li+li{margin-top:6px}
.ai-answer strong{font-weight:700}.ai-answer h3{font-size:18px}.ai-answer h4{font-size:16px}.ai-answer h5{font-size:14px}
.ai-answer h3,.ai-answer h4,.ai-answer h5{margin:20px 0 8px;line-height:1.6}
.ai-answer a{color:var(--green);text-decoration:underline;text-underline-offset:3px;overflow-wrap:anywhere}
.ai-answer blockquote{margin:14px 0;border-left:3px solid var(--green);padding:8px 14px;background:var(--mint);color:var(--green-dark)}
.ai-answer code{font-size:.9em;background:var(--mint);padding:2px 5px;border-radius:5px;white-space:break-spaces}
.ai-answer pre{max-width:100%;overflow-x:auto;margin:14px 0;padding:14px;border:1px solid var(--line);border-radius:10px;background:var(--paper);white-space:pre;overflow-wrap:normal}
.ai-answer pre code{background:transparent;padding:0;white-space:pre}
.ai-answer table{display:block;width:100%;max-width:100%;overflow-x:auto;border-collapse:collapse;margin:16px 0;font-size:13px}
.ai-answer th,.ai-answer td{border:1px solid var(--line);padding:10px 12px;min-width:100px;color:var(--ink)}
.ai-answer th{background:var(--mint);font-weight:700}.ai-answer tbody tr:nth-child(even){background:var(--paper)}
.ai-answer .ai-sources{font-size:12px;color:var(--muted)}
.ai-answer img{max-width:100%;height:auto}
.ai-composer{padding:20px 28px 16px;border-top:1px solid var(--line);background:var(--white)}
.ai-input-heading{display:flex;justify-content:space-between;align-items:center;gap:10px;margin-bottom:9px}.ai-input-heading label{font-weight:600;font-size:13px}.ai-input-heading span{font-size:11px;white-space:nowrap}
.ai-composer textarea{display:block;width:100%;min-width:0;box-sizing:border-box;resize:vertical;min-height:94px;max-height:280px;border:1px solid var(--line);border-radius:12px;padding:13px 15px;background:var(--paper);color:var(--ink);font:inherit;font-size:16px;line-height:1.7}
.ai-composer textarea::placeholder{color:var(--muted)}
.ai-composer-bottom{display:flex;justify-content:space-between;align-items:center;flex-wrap:wrap;gap:14px;margin-top:12px}
.ai-options{display:flex;align-items:center;flex-wrap:wrap;gap:12px;min-width:0;max-width:100%;font-size:12px;color:var(--muted)}
.ai-model-label{display:flex;align-items:center;gap:8px;min-width:0;max-width:100%;white-space:nowrap}
.ai-model-label select{flex:1;min-width:0;width:100%;max-width:220px;border:1px solid var(--line);border-radius:8px;padding:8px;background:var(--white);color:var(--ink);font:inherit}
.ai-web-label{display:flex;align-items:center;gap:6px;cursor:pointer}.ai-web-label input{accent-color:var(--green);width:16px;height:16px;margin:0}
.ai-send-actions{display:flex;gap:8px;margin-left:auto}.ai-send-actions .button{min-width:78px;gap:8px}
.ai-keyboard{font-size:10px;margin-top:10px}.ai-privacy{padding:0 8px;margin-top:16px;font-size:11px;line-height:1.9}
.ai-page :is(button,textarea,select,input):disabled{cursor:not-allowed;opacity:.55}
.ai-page :is(button,textarea,select,input,a,.ai-conversation):focus-visible{outline:2px solid var(--green-dark);outline-offset:3px}
@media(max-width:600px){
  .ai-page .page-heading{align-items:flex-start}.ai-page .page-heading>div:first-child,.ai-model-controls{flex-basis:100%;width:100%}
  .ai-chat-heading{padding:18px 16px;align-items:flex-start}.ai-chat-heading h2{font-size:16px}.ai-chat-heading p{font-size:11px}
  .ai-chat-heading .button{padding:8px 11px;font-size:12px}.ai-conversation{padding:20px 12px;height:48vh;min-height:320px}
  .ai-notice{margin:12px 12px 0}.ai-empty{margin:0 auto 16px}.ai-empty h3{font-size:18px}
  .ai-suggestions{gap:8px;margin-top:18px}.ai-suggestion{font-size:12px;padding:9px 12px}
  .ai-message{max-width:96%}.ai-message-user{max-width:88%}.ai-bubble{padding:13px 14px;font-size:13px}
  .ai-composer{padding:16px 14px 14px}.ai-composer-bottom{gap:12px}.ai-options{width:100%;gap:10px}.ai-model-label select{max-width:none}
  .ai-keyboard{font-size:9px}.ai-privacy{padding:0 2px}.ai-answer h3{font-size:16px}.ai-answer h4{font-size:15px}
}
@media(prefers-reduced-motion:reduce){.ai-streaming::after{animation:none}.ai-suggestion{transition:none}}