:root{--primary: #2c3e50;--secondary: #3498db;--accent: #e74c3c;--light: #ecf0f1;--dark: #34495e;--gray: #95a5a6;--transition: all .3s ease;--shadow: 0 4px 6px rgba(0, 0, 0, .1);--shadow-hover: 0 8px 15px rgba(0, 0, 0, .2);--radius: 12px}*{box-sizing:border-box;margin:0;padding:0}body{font-family:Segoe UI,Tahoma,Geneva,Verdana,sans-serif;background-color:#f8f9fa;color:#333;line-height:1.6}.app-container{display:flex;min-height:100vh;background-color:#fff}.sidebar{background:linear-gradient(to bottom,var(--primary),var(--dark));color:#fff;padding:20px 15px;transition:width .3s ease;overflow:hidden;position:relative;z-index:100}.sidebar.collapsed{width:70px}.sidebar.expanded{width:250px}.toggle-btn{background:var(--primary);border:none;color:#fff;cursor:pointer;font-size:1.5rem;width:40px;height:40px;border-radius:50%;display:flex;align-items:center;justify-content:center;margin-bottom:30px;transition:var(--transition)}.toggle-btn:hover{transform:scale(1.1)}.sidebar nav ul{list-style:none;padding:0}.sidebar nav li{margin-bottom:15px}.sidebar nav a{color:#fffc;text-decoration:none;font-size:1.1rem;font-weight:500;display:flex;align-items:center;padding:10px 15px;border-radius:8px;transition:var(--transition)}.sidebar nav a:hover,.sidebar nav a.active{color:#fff;background:#ffffff1a}.main-content{flex:1;padding:30px;overflow-y:auto;background-color:#f8f9fa}.page{background:#fff;border-radius:var(--radius);padding:30px;box-shadow:var(--shadow)}.experience-list{padding:20px}.cards-container{display:grid;grid-template-columns:repeat(auto-fill,minmax(350px,1fr));gap:25px;margin-top:20px}.experience-card{background:#fff;border-radius:var(--radius);overflow:hidden;box-shadow:var(--shadow);text-decoration:none;color:inherit;display:block;transition:var(--transition);height:100%;position:relative;border:1px solid #eee}.experience-card:hover{transform:translateY(-5px);box-shadow:var(--shadow-hover);border-color:var(--secondary)}.experience-card:hover .card-content{background-color:#f8f9ff}.card-content{padding:25px;transition:var(--transition);height:100%}.card-header{margin-bottom:15px}.card-header h3{color:var(--primary);font-size:1.4rem;margin-bottom:5px}.company-period{display:flex;justify-content:space-between;color:var(--gray);font-size:.95rem}.description{margin-bottom:15px;color:#555;line-height:1.6}.highlights{display:flex;justify-content:space-between;color:var(--secondary);font-weight:500;margin-top:15px;font-size:.9rem}.experience-detail{background:#fff;border-radius:var(--radius);padding:35px;box-shadow:var(--shadow)}.detail-header{padding-bottom:20px;border-bottom:2px solid #f0f0f0;margin-bottom:25px}.detail-header h2{color:var(--primary);font-size:2rem;margin-bottom:10px}.company-period{display:flex;gap:20px;color:var(--gray);font-size:1.1rem}.section{margin:30px 0}.section h3{color:var(--primary);margin-bottom:15px;padding-bottom:8px;border-bottom:1px solid #eee}.section ul{padding-left:25px}.section li{margin-bottom:10px;position:relative}.section li:before{content:"•";color:var(--secondary);font-weight:700;display:inline-block;width:1em;margin-left:-1em}.back-link{display:inline-block;margin-top:20px;color:var(--secondary);text-decoration:none;font-weight:500;transition:var(--transition)}.back-link:hover{color:var(--primary);text-decoration:underline}.home-page{max-width:1200px;margin:0 auto}.hero{text-align:center;padding:60px 20px;background:linear-gradient(135deg,var(--primary),var(--dark));color:#fff;border-radius:var(--radius);margin-bottom:40px}.hero h1{font-size:3rem;margin-bottom:20px}.hero p{font-size:1.2rem;max-width:600px;margin:0 auto 30px}.cta-button{display:inline-block;background:var(--accent);color:#fff;padding:12px 35px;border-radius:50px;text-decoration:none;font-weight:600;font-size:1.1rem;transition:var(--transition);border:none;cursor:pointer}.cta-button:hover{background:#c0392b;transform:translateY(-3px);box-shadow:0 5px 15px #0003}.highlights{display:flex;justify-content:center;gap:30px;margin-top:40px}.highlight-card{background:#fff;border-radius:var(--radius);padding:25px;text-align:center;box-shadow:var(--shadow);transition:var(--transition);width:250px}.highlight-text{text-align:center}.section{display:flex;align-items:center;justify-content:space-between;text-align:left}.section p{margin-right:100px;font-size:20px}.highlight-card:hover{transform:translateY(-8px);box-shadow:var(--shadow-hover)}.highlight-card h3{font-size:2.5rem;color:var(--secondary);margin-bottom:10px}.highlight-card p{color:var(--gray)}footer{margin-top:50px;padding-top:20px;text-align:center;color:var(--gray);border-top:1px solid #eee}@media (max-width: 900px){.sidebar.expanded{width:200px}.cards-container{grid-template-columns:repeat(auto-fill,minmax(300px,1fr))}.highlights{flex-direction:column;align-items:center}}@media (max-width: 600px){.app-container{flex-direction:column}.sidebar{width:100%;padding:15px}.sidebar.collapsed{width:100%;height:70px}.toggle-btn{margin-bottom:0%}.sidebar nav{display:flex;justify-content:center}.sidebar nav ul{display:flex;gap:15px}.main-content{padding:20px}.hero{padding:40px 15px}.hero h1{font-size:2.2rem}}.contact-form-container{background:#fff;padding:40px;border-radius:15px;box-shadow:0 5px 25px #0000001a}.contact-form-container h2{font-size:1.8rem;margin-bottom:10px;color:#2c3e50}.contact-form-container p{margin-bottom:25px;color:#666}.contact-form{display:flex;flex-direction:column;gap:20px}.form-group{display:flex;flex-direction:column;gap:8px}.form-group label{font-weight:600;color:#444}.form-group input,.form-group textarea{padding:14px;border:1px solid #ddd;border-radius:8px;font-size:1rem;transition:border .3s ease}.form-group input:focus,.form-group textarea:focus{border-color:#3498db;outline:none;box-shadow:0 0 0 3px #3498db33}.submit-btn{background:#3498db;color:#fff;border:none;padding:14px 25px;border-radius:8px;font-size:1.1rem;font-weight:600;cursor:pointer;transition:background .3s ease,transform .2s ease;margin-top:10px}.submit-btn:hover{background:#2980b9;transform:translateY(-2px)}.submit-btn:disabled{background:#95a5a6;cursor:not-allowed;transform:none}.error-message{color:#e74c3c;margin-top:10px;text-align:center}.success-message{background:#2ecc71;color:#fff;padding:20px;border-radius:10px;text-align:center;margin-top:20px}.success-message p{font-size:1.1rem;margin-bottom:15px}.success-message button{background:#fff;color:#2ecc71;border:none;padding:10px 20px;border-radius:6px;font-weight:600;cursor:pointer;transition:transform .2s ease}.success-message button:hover{transform:translateY(-2px)}@media (max-width: 900px){.contact-page{grid-template-columns:1fr}.contact-info{padding:30px}}@media (max-width: 600px){.contact-page{padding:15px}.contact-form-container,.contact-info{padding:25px}}body{margin:0;font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Oxygen,Ubuntu,Cantarell,Fira Sans,Droid Sans,Helvetica Neue,sans-serif;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}#root{min-height:100vh}