:root{--ground: #fbf7f0;--surface: #ffffff;--sunk: #f4efe6;--ink: #1e2528;--ink-soft: #3f484c;--muted: #5b6468;--line: #e6ded1;--line-strong: #cfc6b8;--green: #2e6b4e;--green-deep: #1f4d38;--green-tint: #e7f1ea;--warn-bg: #fbf4e6;--warn-ink: #4a3a18;--danger: #b3382f;--danger-bg: #fbecea;--danger-ink: #7e231c;--display: "Fraunces", Georgia, serif;--body: "Source Sans 3", system-ui, sans-serif;--radius: 12px}*{box-sizing:border-box}body{margin:0;background:var(--ground);color:var(--ink);font-family:var(--body);font-size:17px;line-height:1.5}h1,h2,h3{font-family:var(--display);font-weight:600;margin:0}h1{font-size:38px;line-height:1.15}h2{font-size:26px}a{color:var(--green)}a:hover{color:var(--green-deep)}:focus-visible{outline:3px solid var(--green);outline-offset:2px}button,input,select,textarea{font-family:inherit;font-size:inherit}.button{display:inline-flex;align-items:center;justify-content:center;gap:8px;height:52px;padding:0 24px;border:none;border-radius:10px;background:var(--green);color:#fff;font-weight:600;text-decoration:none;cursor:pointer}.button:hover{background:var(--green-deep);color:#fff}.button[disabled]{opacity:.55;cursor:not-allowed}.button.secondary{background:var(--surface);border:1px solid var(--line-strong);color:var(--ink)}.button.secondary:hover{background:var(--sunk);color:var(--ink)}.field{width:100%;height:52px;padding:0 16px;border:1px solid var(--line-strong);border-radius:10px;background:var(--surface);color:var(--ink)}.field.invalid{border:2px solid var(--danger)}.card{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);padding:24px}.hint{font-size:15px;color:var(--muted)}.notice{padding:14px 16px;border-radius:10px;font-size:16px}.notice.good{background:var(--green-tint);color:var(--green-deep)}.notice.warn{background:var(--warn-bg);color:var(--warn-ink)}.notice.bad{background:var(--danger-bg);color:var(--danger-ink)}.stack{display:flex;flex-direction:column;gap:16px}.row{display:flex;gap:16px;align-items:center}.page{max-width:900px;margin:0 auto;padding:48px 24px}.chat{display:grid;grid-template-columns:284px 1fr;height:100dvh;overflow:hidden}.sidebar{background:var(--sunk);border-right:1px solid var(--line);padding:24px 20px;display:flex;flex-direction:column;gap:20px;height:100%;min-height:0;overflow:hidden}.chat-main{display:flex;flex-direction:column;min-width:0;min-height:0;height:100%}.wordmark{font-family:var(--display);font-size:26px;font-weight:600}.chat-item{display:block;width:100%;box-sizing:border-box;padding:9px 12px;border:none;border-radius:8px;background:transparent;color:var(--ink-soft);font-size:16px;text-align:left;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;cursor:pointer}.chat-item:hover{background:#fff9;color:var(--ink)}.chat-item.current{background:var(--surface);color:var(--ink);font-weight:600}.thread{flex:1;min-height:0;padding:32px;display:flex;flex-direction:column;gap:24px;overflow-y:auto}.composer{flex-shrink:0}.turn{display:flex;gap:16px;align-items:flex-start;max-width:780px}.avatar{width:36px;height:36px;flex-shrink:0;border-radius:18px;display:flex;align-items:center;justify-content:center;font-size:15px;font-weight:600}.avatar.person{background:var(--line);color:#4a4238}.avatar.keepsure{background:var(--green);color:#fff}.bubble{padding:16px 20px;background:var(--surface);border:1px solid var(--line);border-radius:14px;white-space:pre-wrap}.answer{white-space:pre-wrap}.composer{padding:16px 32px 28px;display:flex;flex-direction:column;gap:12px}.composer-box{display:flex;gap:12px;align-items:center;padding:10px 12px 10px 20px;background:var(--surface);border:1px solid var(--line-strong);border-radius:14px}.composer-box input{flex:1;border:none;outline:none;background:transparent;font-size:18px}.meter{height:8px;border-radius:4px;background:var(--line);overflow:hidden}.meter span{display:block;height:100%;background:var(--green)}table{width:100%;border-collapse:collapse}th,td{text-align:left;padding:14px 16px;border-top:1px solid var(--sunk)}th{color:var(--muted);font-weight:600}@media(max-width:760px){.chat{grid-template-columns:1fr;height:100dvh}.sidebar{display:none}}@media(prefers-reduced-motion:reduce){*{animation:none!important;transition:none!important}}