:root{--primary: #1a6bf7;--primary-light: #eef7ff;--primary-dark: #142860;--secondary: #06a49d;--secondary-light: #e7fffd;--secondary-dark: #033131;--accent: #ffb004;--accent-light: #fffce8;--accent-dark: #471c00;--background: #f8f9fa;--text: #333333;--light-text: #6c757d;--white: #ffffff;--error: #e63946;--success: #2a9d8f;--warning: #fbbf24;--light-gray: #e9ecef;--medium-gray: #dee2e6;--dark-gray: #6c757d;--shadow: 0 4px 6px -1px rgb(0 0 0 / .1), 0 2px 4px -2px rgb(0 0 0 / .1);--shadow-lg: 0 10px 15px -3px rgb(0 0 0 / .1), 0 4px 6px -4px rgb(0 0 0 / .1);--transition: all .3s ease}*{margin:0;padding:0;box-sizing:border-box}body{font-family:Inter,sans-serif;line-height:1.6;color:var(--text);background-color:var(--background)}main{max-width:1200px;margin:0 auto;padding:0 1rem}h1,h2,h3,h4,h5,h6{margin-bottom:1rem;line-height:1.2;color:var(--primary)}h1{font-size:2.5rem;font-weight:800}h2{font-size:1.75rem;font-weight:700;margin-top:2rem}p{margin-bottom:1rem}a{color:var(--primary);text-decoration:none;transition:var(--transition)}a:hover{color:var(--primary-light)}ul{list-style-position:inside;margin-bottom:1rem}nav{background-color:var(--primary);padding:1rem;display:flex;justify-content:space-between;align-items:center}nav a{color:var(--white);margin-right:1.5rem;font-weight:500}nav a:hover{color:var(--secondary)}nav a[aria-current=page]{font-weight:700;border-bottom:2px solid var(--white)}.nav-links{display:flex}.admin-link{margin-left:auto}.hero{background:linear-gradient(135deg,#1a6bf799,#06a49d99),url(image002.jpg);background-size:cover;background-position:center;color:var(--white);padding:4rem 2rem;text-align:center;margin-bottom:2rem;border-radius:0 0 32px 32px;box-shadow:var(--shadow-lg)}.hero h1{color:var(--white);margin-bottom:1.5rem}.hero p{font-size:1.2rem;max-width:800px;margin:0 auto}.program-info,.contact-info{background-color:var(--white);padding:2rem;border-radius:24px;box-shadow:var(--shadow-lg);margin-bottom:2rem;border:1px solid rgba(0,0,0,.05);transition:var(--transition)}.program-info:hover,.contact-info:hover{transform:translateY(-2px);box-shadow:var(--shadow-lg),0 20px 25px -5px #0000001a}.contact-form{margin:2rem 0}.form-group{margin-bottom:1.5rem}label{display:block;margin-bottom:.5rem;font-weight:500}input,select,textarea{width:100%;padding:.75rem;border:1px solid var(--medium-gray);border-radius:12px;font-family:Inter,sans-serif;font-size:1rem;transition:var(--transition);background-color:var(--white)}input:focus,select:focus,textarea:focus{outline:none;border-color:var(--primary);box-shadow:0 0 0 3px #005f7333}.checkbox-group{display:flex;align-items:center}.checkbox-label{display:flex;align-items:center;cursor:pointer}.checkbox-label input{width:auto;margin-right:.5rem}.submit-button{background-color:var(--primary);color:var(--white);border:none;padding:1rem 2rem;font-weight:600;border-radius:12px;cursor:pointer;transition:var(--transition);box-shadow:var(--shadow)}.submit-button:hover{background-color:var(--primary-light);transform:translateY(-2px)}.form-message{padding:1rem;margin:1rem 0;border-radius:4px;text-align:center}.success-message{background-color:var(--success);color:var(--white)}.error-message{background-color:var(--error);color:var(--white)}.admin-container{max-width:1200px;margin:0 auto;padding:2rem 1rem}.admin-login{max-width:400px;margin:4rem auto;padding:2rem;background-color:var(--white);border-radius:24px;box-shadow:var(--shadow-lg);border:1px solid rgba(0,0,0,.05)}.admin-header{display:flex;justify-content:space-between;align-items:center;margin-bottom:2rem}.admin-logout{background-color:var(--light-gray);color:var(--text);border:none;padding:.5rem 1rem;border-radius:4px;cursor:pointer;font-weight:500}.admin-tabs{display:flex;margin-bottom:1.5rem;border-bottom:1px solid var(--medium-gray)}.tab-button{padding:.75rem 1.5rem;background:none;border:none;cursor:pointer;font-weight:500;color:var(--light-text);transition:var(--transition)}.tab-button.active{color:var(--primary);border-bottom:3px solid var(--primary)}.tab-content{display:none}.tab-content.active{display:block}.submissions-table{width:100%;border-collapse:collapse;margin-top:1rem}.submissions-table th,.submissions-table td{padding:.75rem;text-align:left;border-bottom:1px solid var(--medium-gray)}.submissions-table th{background-color:var(--light-gray);font-weight:600}.submissions-table tr:hover{background-color:var(--light-gray)}.user-card{background-color:var(--white);border-radius:24px;padding:1.5rem;margin-bottom:1rem;box-shadow:var(--shadow-lg);border:1px solid rgba(0,0,0,.05);display:flex;justify-content:space-between;align-items:center;transition:var(--transition)}.user-card:hover{transform:translateY(-2px);box-shadow:var(--shadow),0 4px 12px -2px #0000001a}.user-info h3{margin-bottom:.5rem}.delete-user{background:linear-gradient(135deg,var(--error),#ff4d4d);color:var(--white);border:none;padding:.75rem 1.25rem;border-radius:12px;cursor:pointer;font-weight:500;transition:var(--transition);box-shadow:var(--shadow)}.delete-user:hover{transform:translateY(-1px);box-shadow:var(--shadow-lg)}.modal{position:fixed;z-index:1000;left:0;top:0;width:100%;height:100%;background-color:#00000080;display:flex;justify-content:center;align-items:center}.modal-content{background-color:var(--white);border-radius:24px;padding:2rem;width:90%;max-width:600px;max-height:90vh;overflow-y:auto;box-shadow:var(--shadow-lg);border:1px solid rgba(0,0,0,.05)}.modal-header{display:flex;justify-content:space-between;align-items:center;margin-bottom:1.5rem;padding-bottom:1rem;border-bottom:1px solid var(--medium-gray)}.modal-header h3{margin:0;color:var(--primary)}.close-modal{font-size:2rem;font-weight:700;color:var(--light-text);cursor:pointer;transition:var(--transition)}.close-modal:hover{color:var(--error)}.modal-actions{display:flex;gap:1rem;justify-content:flex-end;margin-top:2rem;padding-top:1rem;border-top:1px solid var(--medium-gray)}.cancel-button{background-color:var(--light-gray);color:var(--text);border:none;padding:.75rem 1.5rem;border-radius:12px;cursor:pointer;font-weight:500;transition:var(--transition)}.cancel-button:hover{background-color:var(--medium-gray)}.edit-button{background:linear-gradient(135deg,var(--secondary),var(--secondary-dark));color:var(--white);border:none;padding:.5rem 1rem;border-radius:8px;cursor:pointer;font-weight:500;transition:var(--transition);margin-right:.5rem}.edit-button:hover{transform:translateY(-1px);box-shadow:var(--shadow)}.delete-button{background:linear-gradient(135deg,var(--error),#ff4d4d);color:var(--white);border:none;padding:.5rem 1rem;border-radius:8px;cursor:pointer;font-weight:500;transition:var(--transition)}.delete-button:hover{transform:translateY(-1px);box-shadow:var(--shadow)}.diagram-container{margin:2rem 0;padding:1.5rem;background-color:var(--white);border-radius:12px;box-shadow:var(--shadow);border:1px solid var(--light-gray)}.diagram-container h3{color:var(--primary);margin-bottom:1rem;text-align:center;font-size:1.3rem;font-weight:600}.fiber-diagram{width:100%;height:auto;border:2px solid var(--medium-gray);border-radius:8px;background-color:var(--white);box-shadow:var(--shadow);transition:var(--transition)}.fiber-diagram:hover{transform:scale(1.02);box-shadow:var(--shadow-lg)}.table-actions{margin-bottom:1rem;display:flex;justify-content:flex-end}.table-actions .submit-button{display:flex;align-items:center;gap:.5rem}@media (max-width: 768px){h1{font-size:2rem}h2{font-size:1.5rem}.hero{padding:3rem 1rem}.admin-tabs{flex-direction:column;border-bottom:none}.tab-button{border-bottom:1px solid var(--medium-gray)}.tab-button.active{border-bottom:1px solid var(--primary);border-left:3px solid var(--primary);padding-left:1.25rem}.submissions-table{display:block;overflow-x:auto}}