@tailwind base;@tailwind components;@tailwind utilities;.logo{border:4px #ecf0f1;border-radius:8px;padding:10px;box-shadow:0 4px 8px #0003;transition:transform .3s ease}.logo:hover{transform:scale(1.05)}.presentation{display:flex;flex-direction:column;align-items:center;font-size:1.2em;justify-content:center;height:auto;text-align:center;background-color:#fff;padding:60px 20px;margin:20px 0;box-shadow:0 2px 4px #0000001a}.option{display:flex;justify-content:space-around;align-items:center;background-color:#f8f9fa;padding:60px 20px;margin:20px 0;box-shadow:0 2px 4px #0000001a}.header{background-color:#95a5a6;display:flex;justify-content:space-around;align-items:center;padding:20px 0;box-shadow:0 2px 4px #0000001a}.nav-item{display:flex;align-items:center;padding:12px;color:#4b5563;cursor:pointer;border-radius:6px;transition:.3s}.nav-item:hover{background:#f3f4f6;color:#2563eb}.icon svg{width:24px;height:24px}.card{background:#fff;padding:20px;border-radius:10px;box-shadow:0 2px 4px #0000001a;border:1px solid #e5e7eb}.card-title{font-size:1.5rem;font-weight:700;color:#374151;margin-bottom:15px}.full-width{grid-column:span 2}.dashboard-container{display:flex;background-color:#f8f9fa}.sidebar{width:250px;background:#fff;padding:20px;box-shadow:2px 0 5px #0000001a;display:flex;flex-direction:column;align-items:flex-start;justify-content:space-between}.dashboard-title{font-size:1.8rem;font-weight:700;color:#1d4ed8;margin-bottom:20px}.nav-menu{width:100%;display:flex;flex-direction:column;gap:10px}.nav-item{display:flex;align-items:center;gap:12px;font-size:1.125rem;font-weight:500;color:#4b5563;background-color:#f1f5f9;padding:10px 20px;border-radius:8px;cursor:pointer;transition:all .3s ease}.nav-item:hover{background-color:#1d4ed8;color:#fff}.nav-item .h-6{width:24px;height:24px}.main-content{flex:1;padding:30px;background:#fff;border-radius:10px;margin:20px;box-shadow:0 4px 8px #0000001a}.section-title{font-size:2rem;font-weight:700;color:#374151;margin-bottom:20px}.content-grid{display:grid;grid-template-columns:1fr;gap:20px}.card{background-color:#fff;padding:1.5rem;border-radius:8px;box-shadow:0 4px 6px #0000001a}.card.fullWidth{grid-column:span 2}.chatbot-container{margin-top:20px}.loading-screen{display:flex;justify-content:center;align-items:center;height:100vh;font-size:1.25rem;font-weight:600;color:#4b5563;background-color:#f9fafb}*{margin:0;padding:0;box-sizing:border-box;font-family:Arial,sans-serif}body{margin:0;padding:0;background-color:#f4f4f9;color:#333;line-height:1.6}.sidebar-item,.menu-toggle-button{transition:all .3s cubic-bezier(.4,0,.2,1)!important}.enseignant-dashboard{max-width:1200px;margin:0 auto;padding:20px}.enseignant-dashboard h1{color:#2c3e50;font-size:2.5rem;text-align:center;margin-bottom:20px}.enseignant-nav{display:flex;justify-content:center;flex-direction:column;gap:10px;margin-bottom:20px}.enseignant-nav button{background-color:#3498db;color:#fff;border:none;padding:10px 20px;border-radius:5px;cursor:pointer;font-size:1rem;transition:background-color .3s ease}.enseignant-nav button:hover{background-color:#2980b9}.creer-devoir-form{background:#fff;padding:20px;border-radius:10px;box-shadow:0 4px 8px #0000001a}.creer-devoir-form label{display:block;margin-bottom:10px;font-weight:700}.creer-devoir-form input[type=text],.creer-devoir-form input[type=number],.creer-devoir-form input[type=date],.creer-devoir-form input[type=datetime-local],.creer-devoir-form input[type=file],.creer-devoir-form select{width:100%;padding:10px;margin-bottom:20px;border:1px solid #ccc;border-radius:5px;font-size:1rem;background-color:#fff;color:#333}.creer-devoir-form select{appearance:none;-webkit-appearance:none;-moz-appearance:none;cursor:pointer}.creer-devoir-form select:after{content:"▼";position:absolute;right:10px;top:50%;transform:translateY(-50%);pointer-events:none}.creer-devoir-form button{background-color:#27ae60;color:#fff;border:none;padding:10px 20px;border-radius:5px;cursor:pointer;font-size:1rem;transition:background-color .3s ease}.creer-devoir-form button:hover{background-color:#219653}.liste-devoirs{font-family:Arial,sans-serif;margin:20px auto;max-width:800px;padding:20px;background-color:#f9f9f9;border-radius:8px;box-shadow:0 4px 6px #0000001a}.liste-devoirs h2{text-align:center;color:#333}.liste-devoirs ul{list-style-type:none;padding:0}.liste-devoirs li{background-color:#fff;margin:15px 0;padding:15px;border-radius:8px;box-shadow:0 2px 4px #0000001a}.liste-devoirs button{background-color:#007bff;color:#fff;border:none;padding:10px 15px;margin-right:10px;margin-top:10px;border-radius:5px;cursor:pointer;transition:background-color .3s}.liste-devoirs button:hover{background-color:#0056b3}.liste-devoirs button:disabled{background-color:#ccc;cursor:not-allowed}.liste-devoirs span{color:green;font-weight:700}.consulter-copies{background:#fff;padding:20px;border-radius:10px;box-shadow:0 4px 8px #0000001a}.consulter-copies table{width:100%;border-collapse:collapse;margin-top:20px}.consulter-copies th,.consulter-copies td{padding:12px;text-align:left;border-bottom:1px solid #ddd}.consulter-copies th{background-color:#3498db;color:#fff}.consulter-copies tr:hover{background-color:#f1f1f1}.consulter-copies input[type=number]{width:80px;padding:5px;border:1px solid #ccc;border-radius:5px;font-size:1rem}.statistiques{background:#fff;padding:20px;border-radius:10px;box-shadow:0 4px 8px #0000001a}.graphique-container{margin-bottom:40px}.graphique-container h3{color:#2c3e50;margin-bottom:20px;font-size:1.5rem}