:root{font-family:system-ui,Avenir,Helvetica,Arial,sans-serif;line-height:1.5;font-weight:400;color-scheme:light dark;color:#ffffffde;background-color:#242424;font-synthesis:none;text-rendering:optimizeLegibility;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;--primary-color: #646cff;--border-color: #e0e0e0;--error-color: #ff4757;--border-radius: 6px;--transition: all .2s ease;--white: #ffffff;--text-color: #213547;--light-text: #666666;--box-shadow: 0 2px 8px rgba(0, 0, 0, .1)}a{font-weight:500;color:#646cff;text-decoration:inherit}a:hover{color:#535bf2}body{margin:0;min-width:320px;min-height:100vh}h1{font-size:3.2em;line-height:1.1}button{border-radius:8px;border:1px solid transparent;padding:.6em 1.2em;font-size:1em;font-weight:500;font-family:inherit;background-color:#1a1a1a;cursor:pointer;transition:border-color .25s}button:hover{border-color:#646cff}button:focus,button:focus-visible{outline:4px auto -webkit-focus-ring-color}@media (prefers-color-scheme: light){:root{color:#213547;background-color:#fff;--border-color: #d0d0d0;--text-color: #213547;--light-text: #666666;--box-shadow: 0 2px 8px rgba(0, 0, 0, .05)}a:hover{color:#747bff}button{background-color:#f9f9f9}}.navbar{display:flex;justify-content:space-between;align-items:center;padding:16px 40px;background-color:var(--white);box-shadow:0 2px 4px #0000001a;position:sticky;top:0;z-index:100}.navbar-logo a{font-size:1.5rem;font-weight:700;color:var(--primary-color);text-decoration:none}.navbar-links{display:flex;list-style:none;gap:24px;align-items:center}.navbar-links li a{color:var(--text-color);text-decoration:none;font-weight:500;transition:var(--transition)}.navbar-links li a:hover{color:var(--primary-color)}.logout-btn{background:none;border:none;color:var(--primary-color);font-size:1rem;font-weight:500;cursor:pointer;transition:var(--transition)}.logout-btn:hover{color:var(--error-color)}@media (max-width: 768px){.navbar{padding:16px 20px;flex-direction:column;gap:16px}.navbar-links{width:100%;flex-wrap:wrap;justify-content:center;gap:16px}}.home{display:flex;flex-direction:column;gap:60px}.hero{text-align:center;padding:60px 20px;width:100%}.hero h1{font-size:3rem;margin-bottom:16px;color:var(--primary-color)}.hero p{font-size:1.2rem;color:var(--light-text);margin-bottom:32px;max-width:600px;margin-left:auto;margin-right:auto}.cta-buttons{display:flex;gap:16px;justify-content:center}.cta-button{display:inline-block;padding:12px 28px;background-color:var(--primary-color);color:#fff;border-radius:var(--border-radius);font-weight:600;text-decoration:none;transition:var(--transition)}.cta-button:hover{background-color:var(--primary-dark);transform:translateY(-2px);color:#fff}.cta-button.secondary{background-color:transparent;border:2px solid var(--primary-color);color:var(--primary-color)}.cta-button.secondary:hover{background-color:var(--primary-color);color:#fff}.features{display:grid;grid-template-columns:repeat(auto-fit,minmax(250px,1fr));gap:30px;padding:0 20px 60px}.feature{background-color:var(--white);padding:30px;border-radius:var(--border-radius);box-shadow:var(--box-shadow);text-align:center;transition:var(--transition)}.feature:hover{transform:translateY(-5px);box-shadow:0 6px 16px #00000026}.feature h2{color:var(--primary-color);margin-bottom:16px}.feature p{color:var(--light-text)}@media (max-width: 768px){.hero h1{font-size:2.5rem}.hero p{font-size:1rem}.cta-buttons{flex-direction:column}.features{grid-template-columns:1fr}}.auth-container{display:flex;justify-content:center;align-items:center;min-height:80vh;padding:20px}.auth-form-container{background-color:var(--white);border-radius:var(--border-radius);box-shadow:var(--box-shadow);padding:40px;width:100%;max-width:450px}.auth-form-container h1{margin-bottom:24px;text-align:center;color:var(--primary-color)}.auth-form{display:flex;flex-direction:column;gap:20px}.form-group{display:flex;flex-direction:column;gap:8px}.form-group label{font-weight:500;color:var(--text-color)}.form-group input{padding:12px 16px;border:1px solid var(--border-color);border-radius:var(--border-radius);font-size:1rem;transition:var(--transition)}.form-group input:focus{outline:none;border-color:var(--primary-color);box-shadow:0 0 0 2px #4a6bff33}.auth-button{margin-top:10px;padding:12px;background-color:var(--primary-color);color:#fff;border:none;border-radius:var(--border-radius);font-size:1rem;font-weight:600;cursor:pointer;transition:var(--transition)}.auth-button:hover:not(:disabled){background-color:var(--primary-dark)}.auth-button:disabled{background-color:var(--lightest-text);cursor:not-allowed}.auth-footer{margin-top:24px;text-align:center;font-size:.9rem;color:var(--light-text)}.auth-footer a{color:var(--primary-color);font-weight:500}.auth-footer a:hover{text-decoration:underline}.url-form-container{width:100%}.url-form{display:flex;flex-direction:column;gap:20px}.shorten-button{padding:12px;background-color:var(--primary-color);color:#fff;border:none;border-radius:var(--border-radius);font-size:1rem;font-weight:600;cursor:pointer;transition:var(--transition);margin-top:8px}.shorten-button:hover:not(:disabled){background-color:var(--primary-dark)}.shorten-button:disabled{background-color:var(--lightest-text);cursor:not-allowed}.url-list{width:100%;overflow-x:auto}.url-list table{width:100%;border-collapse:collapse;border-spacing:0}.url-list th,.url-list td{padding:12px 16px;text-align:left;border-bottom:1px solid var(--border-color)}.url-list th{background-color:#4a6bff0d;font-weight:600;color:var(--primary-color)}.url-list tr:hover{background-color:#4a6bff05}.url-list .original-url{max-width:250px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.url-list .short-url{font-weight:500}.short-url-container{display:flex;align-items:center;gap:12px;flex-wrap:nowrap}.short-url-container .short-url{flex:1;min-width:0}.short-url-container .copy-btn{background-color:var(--primary-color);border:1px solid var(--primary-color);color:#fff;border-radius:var(--border-radius);padding:6px 12px;font-size:.8rem;font-weight:500;transition:var(--transition);white-space:nowrap;flex-shrink:0;cursor:pointer}.short-url-container .copy-btn:hover{background-color:transparent;color:var(--primary-color);transform:translateY(-1px);box-shadow:0 2px 4px #646cff33}@media (max-width: 768px){.url-list th:nth-child(4),.url-list td:nth-child(4){display:none}}@media (max-width: 576px){.url-list th:nth-child(3),.url-list td:nth-child(3){display:none}.short-url-container{flex-direction:row;align-items:center;gap:8px}.short-url-container .copy-btn{font-size:.75rem;padding:4px 8px}}.dashboard{max-width:900px;margin:0 auto}.dashboard h1{margin-bottom:32px;color:var(--primary-color)}.url-shortener-section,.url-history-section{background-color:var(--white);border-radius:var(--border-radius);box-shadow:var(--box-shadow);padding:24px;margin-bottom:32px}.dashboard h2{margin-bottom:20px;font-size:1.5rem;color:var(--text-color)}.recently-shortened{margin-top:24px;padding-top:24px;border-top:1px solid var(--border-color)}.recently-shortened h3{margin-bottom:16px;font-size:1.2rem;color:var(--primary-color)}.shortened-url-card{background-color:#4a6bff0d;border-radius:var(--border-radius);padding:16px;border:1px solid rgba(74,107,255,.2)}.original-url{color:var(--light-text);margin-bottom:8px;word-break:break-all}.shortened-url-container{display:flex;align-items:center;gap:12px}.shortened-url{font-weight:600;color:var(--primary-color);word-break:break-all}.copy-btn{background-color:var(--white);border:1px solid var(--border-color);border-radius:var(--border-radius);padding:6px 12px;font-size:.9rem;transition:var(--transition)}.copy-btn:hover{background-color:var(--primary-color);color:#fff;border-color:var(--primary-color)}.no-urls{text-align:center;padding:40px 0;color:var(--light-text);font-size:1.1rem}@media (max-width: 768px){.shortened-url-container{flex-direction:column;align-items:flex-start}}:root{--primary-color: #4a6bff;--primary-dark: #3a57df;--secondary-color: #34bbe6;--text-color: #333;--light-text: #666;--lightest-text: #999;--background-color: #f5f7fa;--white: #ffffff;--error-color: #e53935;--success-color: #43a047;--border-color: #e0e0e0;--box-shadow: 0 2px 8px rgba(0, 0, 0, .1);--border-radius: 6px;--transition: all .3s ease}*{margin:0;padding:0;box-sizing:border-box;font-family:Segoe UI,Tahoma,Geneva,Verdana,sans-serif}body{background-color:var(--background-color);color:var(--text-color);line-height:1.6}.app{min-height:100vh;display:flex;flex-direction:column}.container{width:100%;flex:1}a{color:var(--primary-color);text-decoration:none;transition:var(--transition)}a:hover{color:var(--primary-dark)}button{cursor:pointer;font-weight:500;transition:var(--transition)}button:disabled{opacity:.7;cursor:not-allowed}.loading{display:flex;justify-content:center;align-items:center;height:100px;font-size:18px;color:var(--light-text)}.error-message{background-color:#e539351a;color:var(--error-color);padding:12px;border-radius:var(--border-radius);margin-bottom:20px;border:1px solid rgba(229,57,53,.3)}h1,h2,h3,h4,h5,h6{margin-bottom:16px;font-weight:600}h1{font-size:2.5rem}h2{font-size:2rem}h3{font-size:1.5rem}section{margin-bottom:40px}