:root{--bg: #f5f5f7;--surface: #ffffff;--border: #e6e6e6;--text: #1d1d1f;--text-secondary: #6e6e73;--text-muted: #aeaeb2;--accent: #06c755;--accent-hover: #05b04c;--danger: #e63946;--shadow: 0 1px 3px rgba(0,0,0,.06);--shadow-md: 0 2px 8px rgba(0,0,0,.08);--radius: 12px;--radius-sm: 8px;--radius-pill: 9999px;--font: "Inter var", "Inter", -apple-system, sans-serif;--mono: "SF Mono", "Menlo", monospace}*{margin:0;padding:0;box-sizing:border-box}body{background:var(--bg);color:var(--text);font-family:var(--font);font-feature-settings:"cv01","ss03";min-height:100vh;-webkit-font-smoothing:antialiased}.header{display:flex;align-items:center;justify-content:space-between;padding:14px 20px;position:sticky;top:0;z-index:100;background:#f5f5f7b8;backdrop-filter:saturate(180%) blur(20px);-webkit-backdrop-filter:saturate(180%) blur(20px);border-bottom:1px solid rgba(0,0,0,.06)}.logo{font-size:18px;font-weight:700;letter-spacing:-.3px;color:var(--accent)}.logo span{color:var(--text);font-weight:500}.header-actions{display:flex;gap:8px;align-items:center}.nav-tabs{display:flex;gap:4px;padding:10px 20px;background:var(--surface);border-bottom:1px solid var(--border);overflow-x:auto}.nav-tab{padding:7px 16px;border-radius:var(--radius-pill);font-size:13px;font-weight:510;color:var(--text-secondary);background:transparent;border:none;cursor:pointer;white-space:nowrap;transition:all .15s;font-family:var(--font)}.nav-tab:hover{background:var(--bg)}.nav-tab.active{background:var(--text);color:#fff}.content{max-width:640px;margin:0 auto;padding:20px}.login-card{background:var(--surface);border-radius:var(--radius);padding:32px 24px;box-shadow:var(--shadow-md);max-width:400px;margin:60px auto}.login-card h2{font-size:20px;font-weight:650;margin-bottom:4px;letter-spacing:-.3px}.login-card p{font-size:13px;color:var(--text-secondary);margin-bottom:20px;line-height:1.5}.field{margin-bottom:16px}.field label{display:block;font-size:12px;font-weight:600;color:var(--text-secondary);margin-bottom:6px;letter-spacing:.3px;text-transform:uppercase}.field input,.field select,.field textarea{width:100%;padding:10px 14px;border:1px solid var(--border);border-radius:var(--radius-sm);font-size:14px;font-family:var(--font);color:var(--text);background:var(--surface);transition:border-color .15s;outline:none}.field input:focus,.field select:focus,.field textarea:focus{border-color:var(--accent)}.field input::placeholder{color:var(--text-muted)}.field textarea{resize:vertical;min-height:60px}.btn{display:inline-flex;align-items:center;gap:6px;padding:10px 20px;border-radius:var(--radius-pill);font-size:14px;font-weight:590;border:none;cursor:pointer;font-family:var(--font);transition:all .15s;letter-spacing:-.1px}.btn-primary{background:var(--accent);color:#fff}.btn-primary:hover{background:var(--accent-hover)}.btn-secondary{background:transparent;border:1px solid var(--border);color:var(--text-secondary)}.btn-secondary:hover{background:var(--bg)}.btn-sm{padding:6px 14px;font-size:12px}.btn-danger{background:var(--danger);color:#fff}.section{background:var(--surface);border-radius:var(--radius);box-shadow:var(--shadow);margin-bottom:16px;overflow:hidden}.section-header{padding:14px 18px;font-size:13px;font-weight:650;color:var(--text-secondary);text-transform:uppercase;letter-spacing:.8px;border-bottom:1px solid var(--border)}.section-body{padding:16px 18px}.task-item{display:flex;align-items:flex-start;gap:10px;padding:10px 0;border-bottom:1px solid var(--border);font-size:14px}.task-item:last-child{border-bottom:none}.task-status{width:20px;height:20px;border-radius:50%;border:2px solid var(--border);flex-shrink:0;margin-top:1px}.task-status.done{background:var(--accent);border-color:var(--accent)}.task-body{flex:1;min-width:0}.task-title{font-weight:500;letter-spacing:-.1px}.task-meta{font-size:12px;color:var(--text-muted);margin-top:2px}.task-category{display:inline-block;font-size:11px;padding:1px 8px;border-radius:var(--radius-pill);background:var(--bg);color:var(--text-secondary);font-weight:510}.memo-item{padding:10px 0;border-bottom:1px solid var(--border)}.memo-item:last-child{border-bottom:none}.memo-content{font-size:14px;line-height:1.5}.memo-date{font-size:11px;color:var(--text-muted);margin-top:4px;font-family:var(--mono)}.msg-item{padding:8px 0;font-size:13px;line-height:1.5}.msg-role{font-size:10px;font-weight:700;text-transform:uppercase;letter-spacing:.5px;color:var(--text-muted);margin-bottom:2px}.msg-role.user{color:var(--accent)}.msg-role.assistant{color:#7c3aed}.msg-content{color:var(--text);white-space:pre-wrap;word-break:break-word}.persona-chips{display:flex;gap:8px;flex-wrap:wrap}.persona-chip{padding:8px 16px;border-radius:var(--radius-pill);font-size:13px;font-weight:510;background:var(--bg);border:1px solid var(--border);color:var(--text-secondary);cursor:pointer;transition:all .15s;font-family:var(--font)}.persona-chip:hover{border-color:#ccc}.persona-chip.active{background:var(--accent);color:#fff;border-color:var(--accent)}.empty{text-align:center;padding:40px 20px;color:var(--text-muted);font-size:14px}.loading{text-align:center;padding:40px;color:var(--text-muted)}.toast{position:fixed;bottom:24px;left:50%;transform:translate(-50%);background:var(--text);color:#fff;padding:10px 20px;border-radius:var(--radius-pill);font-size:13px;font-weight:510;z-index:200;animation:toast-in .3s ease}@keyframes toast-in{0%{opacity:0;transform:translate(-50%) translateY(10px)}to{opacity:1;transform:translate(-50%) translateY(0)}}.lang-switcher{display:flex;gap:4px}.lang-btn{padding:4px 10px;border-radius:var(--radius-pill);font-size:11px;font-weight:510;background:var(--bg);border:1px solid var(--border);color:var(--text-secondary);cursor:pointer;font-family:var(--font);transition:all .15s}.lang-btn:hover{border-color:#ccc}.lang-btn.active{background:var(--text);color:#fff;border-color:var(--text)}.login-card .lang-switcher{margin-bottom:16px;justify-content:flex-end}.dev-links{display:flex;flex-direction:column;gap:6px;margin:8px 0 16px}.dev-links a{font-size:13px;color:var(--accent);text-decoration:none;font-weight:510;padding:6px 10px;background:var(--bg);border-radius:var(--radius-sm);transition:background .15s}.dev-links a:hover{background:#e8e8ea}.login-info{margin-top:24px;padding-top:20px;border-top:1px solid var(--border)}.login-info h3{font-size:14px;font-weight:650;margin-bottom:8px;margin-top:16px;letter-spacing:-.2px}.login-info h3:first-child{margin-top:0}.login-info p{font-size:13px;color:var(--text-secondary);line-height:1.6;margin-bottom:8px}.login-info ul{font-size:12px;color:var(--text-secondary);line-height:1.7;padding-left:18px;margin-bottom:12px}.use-cases{display:flex;flex-direction:column;gap:6px;margin:10px 0}.use-case{font-size:13px;color:var(--text);padding:8px 12px;background:var(--bg);border-radius:var(--radius-sm)}.login-links{display:flex;gap:8px;align-items:center;margin-top:16px;font-size:13px}.login-links a{color:var(--accent);text-decoration:none;font-weight:510}.login-links span{color:var(--text-muted)}.about-body p{font-size:13px;color:var(--text-secondary);line-height:1.6;margin-bottom:12px}.about-body p strong{color:var(--text)}.about-stack{display:flex;gap:6px;flex-wrap:wrap;margin-bottom:16px}.stack-chip{font-size:11px;padding:3px 10px;border-radius:var(--radius-pill);background:var(--bg);color:var(--text-secondary);font-weight:510}.about-security{margin-bottom:16px}.about-security h4{font-size:13px;font-weight:600;margin-bottom:8px}.about-security table{width:100%;font-size:12px;border-collapse:collapse}.about-security td{padding:6px 8px;border-bottom:1px solid var(--border)}.about-security td:first-child{font-weight:510;color:var(--text);white-space:nowrap}.about-security td:last-child{color:var(--text-secondary)}.about-links{display:flex;flex-direction:column;gap:6px;margin-bottom:12px}.about-links a{font-size:13px;color:var(--accent);text-decoration:none;font-weight:510}.about-links a:hover{text-decoration:underline}.about-footer{font-size:11px;color:var(--text-muted)}.about-footer a{color:var(--text-secondary);text-decoration:none}@media (min-width: 640px){.content{padding:24px}.login-card{max-width:480px}}