:root{--bg-main: #212121;--bg-sidebar: #171717;--bg-elevated: #2a2a2a;--bg-input: #2f2f2f;--bg-code: #161616;--bg-bubble-user: #2f2f2f;--bg-bubble-assistant: transparent;--text-primary: #ececec;--text-secondary: #a8a8a8;--border-color: #3a3a3a;--border-strong: #4a4a4a;--accent: #0e7c61;--accent-hover: #0b6a53;--accent-text: #7fd1b9;--link: #8ab4f8;--focus: #8ab4f8;--danger: #f28b82;--chat-column-width: 848px;--chat-gutter: 24px;--topbar-height: 52px;--font-body: system-ui, -apple-system, "Segoe UI", "Hiragino Kaku Gothic ProN", "Hiragino Sans", "Yu Gothic UI", "Meiryo", sans-serif;--font-mono: "Consolas", "SF Mono", "Menlo", "Cascadia Mono", monospace}*{box-sizing:border-box}html,body,#root{height:100%;margin:0}body{font-family:var(--font-body);background:var(--bg-main);color:var(--text-primary);-webkit-font-smoothing:antialiased;scrollbar-color:var(--border-strong) 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var(--border-color);border-radius:8px;color:var(--text-primary);font-size:16px;line-height:1}.icon-button:hover{background:var(--bg-elevated)}.auth-page{min-height:100%;display:flex;align-items:center;justify-content:center;padding:16px}.auth-card{width:min(360px,100%);background:var(--bg-sidebar);border:1px solid var(--border-color);border-radius:12px;padding:32px;display:flex;flex-direction:column;gap:14px}.auth-card h1{font-size:20px;text-align:center;margin:0 0 8px}.auth-tabs{display:flex;gap:4px;margin-bottom:8px}.auth-tabs button{flex:1;background:transparent;border:1px solid var(--border-color);color:var(--text-secondary);border-radius:6px;padding:6px 4px;font-size:12px}.auth-tabs button.active{background:var(--accent);color:#fff;border-color:var(--accent)}.auth-card label{display:flex;flex-direction:column;gap:6px;font-size:13px;color:var(--text-secondary)}.auth-error{color:var(--danger);font-size:13px}.auth-message{color:var(--accent-text);font-size:13px}.primary-button{background:var(--accent);color:#fff;border:none;border-radius:6px;padding:10px;font-size:14px}.primary-button:hover{background:var(--accent-hover)}.primary-button:disabled{opacity:.6;cursor:default}.chat-layout{display:flex;height:100%;height:100dvh;overflow:hidden}.chat-main{flex:1;min-width:0;display:flex;flex-direction:column;height:100%;overflow:hidden}.chat-notices{width:100%;max-width:var(--chat-column-width);margin:0 auto;padding:4px var(--chat-gutter);flex-shrink:0}.chat-notice{margin:4px 0;font-size:13px;line-height:1.5}.error-notice{color:var(--danger)}.processing-notice,.recovery-notice{color:var(--text-secondary)}.recovery-notice{display:flex;align-items:center;gap:8px}.notice-retry{flex-shrink:0;background:transparent;border:1px solid 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