:root{--primary: #2563eb;--primary-hover: #1d4ed8;--black: #0a0a0a;--gray-900: #171717;--gray-800: #262626;--gray-700: #404040;--gray-600: #525252;--gray-500: #737373;--gray-400: #a3a3a3;--gray-300: #d4d4d4;--gray-200: #e5e5e5;--gray-100: #f5f5f5;--gray-50: #fafafa;--white: #ffffff;--bg: var(--gray-50);--bg-card: var(--white);--border: var(--gray-200);--text: var(--gray-900);--text-secondary: var(--gray-600);--text-muted: var(--gray-500);--danger: #dc2626;--radius: 6px;--transition: .15s ease}*{margin:0;padding:0;box-sizing:border-box}body{font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Inter,sans-serif;-webkit-font-smoothing:antialiased;background:var(--bg);color:var(--text);line-height:1.5;min-height:100vh;font-size:14px}::-webkit-scrollbar{width:8px}::-webkit-scrollbar-track{background:transparent}::-webkit-scrollbar-thumb{background:var(--gray-300);border-radius:4px}::-webkit-scrollbar-thumb:hover{background:var(--gray-400)}.ai-tools{background:var(--gray-50);border:1px solid var(--border);border-radius:var(--radius);padding:16px;margin-top:16px}.ai-tools-header{display:flex;align-items:center;gap:6px;margin-bottom:12px;color:var(--text-muted);font-size:12px;font-weight:500;text-transform:uppercase;letter-spacing:.5px}.ai-icon{font-size:14px}.ai-buttons{display:flex;flex-wrap:wrap;gap:6px}.ai-btn{display:flex;align-items:center;gap:6px;padding:8px 12px;border:1px solid var(--border);border-radius:var(--radius);background:var(--white);color:var(--text-secondary);font-size:13px;font-weight:500;cursor:pointer;transition:all var(--transition)}.ai-btn:hover:not(:disabled){background:var(--gray-100);color:var(--text);border-color:var(--gray-300)}.ai-btn:disabled{opacity:.5;cursor:not-allowed}.spinner-small{width:12px;height:12px;border:2px solid var(--gray-200);border-top-color:var(--primary);border-radius:50%;animation:spin .6s linear infinite}.ai-error{margin-top:12px;padding:10px 12px;background:#fef2f2;border:1px solid #fecaca;border-radius:var(--radius);color:#dc2626;font-size:13px}.ai-result{margin-top:12px;background:var(--white);border:1px solid var(--border);border-radius:var(--radius);overflow:hidden}.ai-result-header{padding:10px 14px;background:var(--gray-50);border-bottom:1px solid var(--border)}.result-type{font-weight:500;color:var(--text);font-size:13px}.ai-result-content{padding:14px;color:var(--text-secondary);font-size:14px;line-height:1.6;max-height:180px;overflow-y:auto}.ai-result-content p{margin:0}.tags-list{display:flex;flex-wrap:wrap;gap:6px}.tag-chip{display:inline-block;padding:4px 10px;background:var(--gray-100);color:var(--text-secondary);border-radius:4px;font-size:13px;font-weight:500}.ai-result-actions{display:flex;gap:8px;padding:12px 14px;background:var(--gray-50);border-top:1px solid var(--border)}.btn-apply{padding:6px 12px;background:var(--primary);color:var(--white);border:none;border-radius:var(--radius);font-size:13px;font-weight:500;cursor:pointer;transition:all var(--transition)}.btn-apply:hover{background:var(--primary-hover)}.btn-dismiss{padding:6px 12px;background:var(--white);color:var(--text-secondary);border:1px solid var(--border);border-radius:var(--radius);font-size:13px;font-weight:500;cursor:pointer;transition:all var(--transition)}.btn-dismiss:hover{background:var(--gray-100);color:var(--text)}@media(max-width:480px){.ai-buttons{flex-direction:column}.ai-btn{justify-content:center}}.app{min-height:100vh;display:flex;flex-direction:column}.main-content{padding-top:57px;min-height:calc(100vh - 57px);flex:1}.navbar{background:var(--white);border-bottom:1px solid var(--border);position:fixed;top:0;width:100%;z-index:100;height:56px;display:flex;align-items:center}.navbar-container{max-width:1200px;width:100%;margin:0 auto;padding:0 24px;display:flex;justify-content:space-between;align-items:center}.navbar-logo{color:var(--text);font-size:15px;font-weight:600;text-decoration:none;letter-spacing:-.3px}.navbar-menu{display:flex;align-items:center;gap:24px}.navbar-link{color:var(--text-secondary);text-decoration:none;font-size:14px;font-weight:500;transition:color var(--transition)}.navbar-link:hover{color:var(--text)}.navbar-user{color:var(--text-muted);font-size:14px}.btn-logout{background:transparent;color:var(--text-secondary);border:1px solid var(--border);padding:6px 12px;border-radius:var(--radius);cursor:pointer;font-size:13px;font-weight:500;transition:all var(--transition)}.btn-logout:hover{background:var(--gray-100);color:var(--text)}.landing{max-width:1000px;margin:0 auto;padding:0 24px}.hero{padding:80px 0 60px;text-align:center}.hero-content{max-width:600px;margin:0 auto}.hero-content h1{font-size:42px;font-weight:600;color:var(--text);margin-bottom:16px;letter-spacing:-1px;line-height:1.2}.hero-content p{font-size:17px;color:var(--text-secondary);margin-bottom:32px;line-height:1.6}.hero-buttons{display:flex;gap:12px;justify-content:center}.features{padding:60px 0;border-top:1px solid var(--border)}.features-header{text-align:center;margin-bottom:48px}.features-header h2{font-size:28px;font-weight:600;color:var(--text);margin-bottom:8px;letter-spacing:-.5px}.features-header p{font-size:16px;color:var(--text-secondary)}.features-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:24px}.feature-card{padding:24px;background:var(--bg-card);border:1px solid var(--border);border-radius:var(--radius);transition:border-color var(--transition)}.feature-card:hover{border-color:var(--gray-300)}.feature-icon{width:40px;height:40px;background:var(--gray-100);border-radius:var(--radius);display:flex;align-items:center;justify-content:center;margin-bottom:16px;color:var(--text)}.feature-card h3{font-size:16px;font-weight:600;color:var(--text);margin-bottom:8px}.feature-card p{font-size:14px;color:var(--text-secondary);line-height:1.5}.cta{padding:60px 0;text-align:center;border-top:1px solid var(--border)}.cta h2{font-size:24px;font-weight:600;color:var(--text);margin-bottom:8px;letter-spacing:-.3px}.cta p{font-size:16px;color:var(--text-secondary);margin-bottom:24px}.landing-footer{padding:24px 0;border-top:1px solid var(--border);text-align:center}.landing-footer p{font-size:13px;color:var(--text-muted)}.auth-container{display:flex;justify-content:center;align-items:center;min-height:calc(100vh - 57px);padding:24px}.auth-card{background:var(--bg-card);border:1px solid var(--border);padding:32px;border-radius:var(--radius);width:100%;max-width:380px}.auth-card h2{font-size:20px;font-weight:600;color:var(--text);margin-bottom:24px;text-align:center;letter-spacing:-.3px}.auth-link{text-align:center;margin-top:20px;color:var(--text-muted);font-size:14px}.auth-link a{color:var(--primary);text-decoration:none;font-weight:500}.auth-link a:hover{text-decoration:underline}.form-group{margin-bottom:16px}.form-group label{display:block;margin-bottom:6px;color:var(--text);font-weight:500;font-size:13px}.form-group input,.form-group textarea{width:100%;padding:10px 12px;border:1px solid var(--border);border-radius:var(--radius);font-size:14px;background:var(--white);color:var(--text);transition:border-color var(--transition)}.form-group input::placeholder,.form-group textarea::placeholder{color:var(--gray-400)}.form-group input:focus,.form-group textarea:focus{outline:none;border-color:var(--primary)}.form-group textarea{resize:vertical;font-family:inherit;min-height:100px}.checkbox-group{display:flex;align-items:center}.checkbox-group label{display:flex;align-items:center;gap:8px;margin-bottom:0;cursor:pointer;font-weight:400;color:var(--text-secondary)}.checkbox-group input[type=checkbox]{width:16px;height:16px;cursor:pointer;accent-color:var(--primary)}.btn{padding:10px 16px;border:none;border-radius:var(--radius);font-size:14px;font-weight:500;cursor:pointer;transition:all var(--transition);text-decoration:none;display:inline-flex;align-items:center;justify-content:center}.btn-primary{background:var(--primary);color:var(--white)}.btn-primary:hover{background:var(--primary-hover)}.btn-primary:disabled{background:var(--gray-300);cursor:not-allowed}.btn-secondary{background:var(--white);color:var(--text);border:1px solid var(--border)}.btn-secondary:hover{background:var(--gray-100)}.btn-icon{background:transparent;border:none;cursor:pointer;padding:6px 10px;border-radius:var(--radius);color:var(--text-muted);font-size:13px;font-weight:500;transition:all var(--transition)}.btn-icon:hover{background:var(--gray-100);color:var(--text)}.btn-ai{background:var(--gray-100);color:var(--text-secondary);font-size:12px;padding:4px 8px;border-radius:var(--radius)}.btn-ai:hover{background:var(--gray-200);color:var(--text)}.dashboard-container{max-width:900px;margin:0 auto;padding:32px 24px}.dashboard-content h1{font-size:24px;font-weight:600;color:var(--text);margin-bottom:24px;letter-spacing:-.3px}.dashboard-content h2{font-size:14px;font-weight:500;color:var(--text-muted);margin-bottom:16px;text-transform:uppercase;letter-spacing:.5px}.note-form-container{background:var(--bg-card);border:1px solid var(--border);padding:24px;border-radius:var(--radius);margin-bottom:32px}.note-form h3{font-size:15px;font-weight:600;color:var(--text);margin-bottom:16px}.form-buttons{display:flex;gap:8px;margin-top:16px}.notes-section{margin-top:24px}.notes-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(280px,1fr));gap:16px;margin-top:16px}.no-notes{text-align:center;color:var(--text-muted);padding:48px 24px;font-size:14px;background:var(--bg-card);border:1px dashed var(--border);border-radius:var(--radius)}.note-card{background:var(--bg-card);padding:20px;border-radius:var(--radius);border:1px solid var(--border);transition:border-color var(--transition)}.note-card:hover{border-color:var(--gray-300)}.note-header{display:flex;justify-content:space-between;align-items:flex-start;margin-bottom:8px;gap:12px}.note-header h3{font-size:15px;font-weight:600;color:var(--text);line-height:1.4;flex:1}.pin-badge{font-size:11px;background:var(--gray-100);color:var(--text-muted);padding:2px 8px;border-radius:4px;font-weight:500;flex-shrink:0}.note-content{color:var(--text-secondary);font-size:14px;margin-bottom:16px;line-height:1.6;word-wrap:break-word;white-space:pre-wrap}.note-footer{display:flex;justify-content:space-between;align-items:center;padding-top:12px;border-top:1px solid var(--gray-100)}.note-date{font-size:12px;color:var(--text-muted)}.note-actions{display:flex;gap:4px}.error-message{background:#fef2f2;color:#dc2626;padding:12px 16px;border-radius:var(--radius);margin-bottom:16px;font-size:14px;border:1px solid #fecaca}.success-message{background:#f0fdf4;color:#16a34a;padding:12px 16px;border-radius:var(--radius);margin-bottom:16px;font-size:14px;border:1px solid #bbf7d0}.loading-spinner{display:flex;flex-direction:column;justify-content:center;align-items:center;padding:48px;gap:12px}.spinner{width:24px;height:24px;border:2px solid var(--gray-200);border-top-color:var(--primary);border-radius:50%;animation:spin .6s linear infinite}@keyframes spin{to{transform:rotate(360deg)}}@media(max-width:768px){.navbar-container{padding:0 16px}.navbar-user{display:none}.hero{padding:48px 0 40px}.hero-content h1{font-size:28px}.hero-content p{font-size:15px}.hero-buttons{flex-direction:column}.hero-buttons .btn{width:100%}.features{padding:40px 0}.features-header h2{font-size:22px}.features-grid{grid-template-columns:1fr;gap:16px}.cta{padding:40px 0}.cta h2{font-size:20px}.notes-grid{grid-template-columns:1fr}.dashboard-container{padding:24px 16px}.note-form-container{padding:20px}.auth-card{padding:24px}.form-buttons{flex-direction:column}.form-buttons .btn{width:100%}}
