:root{--color-primary: #0050a0;--color-primary-border: rgba(0, 80, 160, .16);--color-body: #1f2024;--color-muted: #71727a;--color-bg: #ffffff;--color-surface: #f8fafc;--color-danger: #ea4335;--color-success: #34a853;--radius: 12px;--font-heading: "Montserrat", system-ui, sans-serif;--font-body: "Inter", system-ui, sans-serif}*{box-sizing:border-box}html,body,#root{height:100%;margin:0}body{font-family:var(--font-body);color:var(--color-body);background:var(--color-bg)}button{font-family:var(--font-heading);cursor:pointer}input,textarea{font-family:var(--font-body)}.btn-primary{background:var(--color-primary);color:#fff;border:1px solid rgba(0,56,112,.34);border-radius:var(--radius);min-height:44px;padding:10px 18px;font-weight:600;font-size:14px}.btn-primary:disabled{opacity:.5;cursor:not-allowed}.btn-ghost{background:transparent;color:var(--color-primary);border:1px solid var(--color-primary-border);border-radius:var(--radius);min-height:40px;padding:8px 14px;font-weight:500;font-size:13px}.panel{background:var(--color-bg);border:1px solid var(--color-primary-border);border-radius:var(--radius)}.message-bubble{max-width:85%;padding:10px 14px;border-radius:var(--radius);margin-bottom:8px;font-size:14px;line-height:1.45;white-space:pre-wrap;word-break:break-word}.message-bubble.user{background:#0050a014;margin-left:auto;border:1px solid var(--color-primary-border)}.message-bubble.assistant{background:var(--color-surface);margin-right:auto;border:1px solid rgba(0,0,0,.06)}.message-bubble.clickable{cursor:pointer}.message-bubble.clickable:hover{outline:2px solid rgba(0,80,160,.25)}