<style>
@import url('https://fonts.googleapis.com/css2?family=Plus+Jakarta+Sans:wght@400;500;600;700;800&display=swap');
@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700&display=swap');
    :root {
        --primary: #4361ee;
        --primary-light: #eef2ff;
        --primary-dark: #2d47b8;
        --success: #2ec4b6;
        --success-light: #ecfdf5;
        --danger: #e63946;
        --danger-light: #ffe5e8;
        --warning: #f59e0b;
        --warning-light: #fef3c7;
        --surface: #ffffff;
        --surface-secondary: #f8fafc;
        --surface-tertiary: #f1f5f9;
        --text-primary: #0f172a;
        --text-secondary: #475569;
        --text-tertiary: #94a3b8;
        --border: #e2e8f0;
        --border-light: #f1f5f9;
        --shadow-xs: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
        --shadow-sm: 0 1px 3px 0 rgba(0, 0, 0, 0.1), 0 1px 2px 0 rgba(0, 0, 0, 0.06);
        --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
        --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
        --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
        --shadow-glow: 0 0 20px rgba(67, 97, 238, 0.15);
        --radius-sm: 8px;
        --radius-md: 12px;
        --radius-lg: 16px;
        --radius-xl: 20px;
        --radius-2xl: 24px;
        --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    }

    * {
        box-sizing: border-box;
    }

    body {
        background: linear-gradient(135deg, var(--surface-secondary) 0%, #f0f4f8 100%);
        font-family: 'Inter', sans-serif;
        color: var(--text-primary);
        overflow-x: hidden;
        min-height: 100vh;
    }

    /* ============ ANIMATIONS PERSONNALISÉES ============ */

    @keyframes slideInDown {
        from {
            opacity: 0;
            transform: translateY(-30px);
        }
        to {
            opacity: 1;
            transform: translateY(0);
        }
    }

    @keyframes slideInUp {
        from {
            opacity: 0;
            transform: translateY(30px);
        }
        to {
            opacity: 1;
            transform: translateY(0);
        }
    }

    @keyframes slideInLeft {
        from {
            opacity: 0;
            transform: translateX(-30px);
        }
        to {
            opacity: 1;
            transform: translateX(0);
        }
    }

    @keyframes fadeInScale {
        from {
            opacity: 0;
            transform: scale(0.95);
        }
        to {
            opacity: 1;
            transform: scale(1);
        }
    }

    @keyframes pulse {
        0%, 100% {
            opacity: 1;
        }
        50% {
            opacity: 0.5;
        }
    }

    @keyframes shimmer {
        0% {
            background-position: -1000px 0;
        }
        100% {
            background-position: 1000px 0;
        }
    }

    @keyframes float {
        0%, 100% {
            transform: translateY(0px);
        }
        50% {
            transform: translateY(-8px);
        }
    }

    @keyframes glow {
        0%, 100% {
            box-shadow: 0 0 20px rgba(67, 97, 238, 0.3);
        }
        50% {
            box-shadow: 0 0 30px rgba(67, 97, 238, 0.5);
        }
    }

    .animate-slide-down {
        animation: slideInDown 0.6s cubic-bezier(0.34, 1.56, 0.64, 1) forwards;
    }

    .animate-slide-up {
        animation: slideInUp 0.6s cubic-bezier(0.34, 1.56, 0.64, 1) forwards;
    }

    .animate-fade-scale {
        animation: fadeInScale 0.5s cubic-bezier(0.34, 1.56, 0.64, 1) forwards;
    }

    /* ============ LAYOUT ============ */

    .container-premium {
        max-width: 1600px;
        margin: 0 auto;
        padding: 2rem 1.5rem;
    }

    /* ============ HEADER HERO ============ */

    .hero-section {
        background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
        border-radius: var(--radius-2xl);
        padding: 3.5rem 3rem;
        color: white;
        margin-bottom: 3rem;
        position: relative;
        overflow: hidden;
        box-shadow: var(--shadow-xl);
        animation: slideInDown 0.7s cubic-bezier(0.34, 1.56, 0.64, 1) forwards;
    }

    .hero-section::before {
        content: '';
        position: absolute;
        top: -50%;
        right: -50%;
        width: 500px;
        height: 500px;
        background: rgba(255, 255, 255, 0.1);
        border-radius: 50%;
        animation: float 6s ease-in-out infinite;
    }

    .hero-section::after {
        content: '';
        position: absolute;
        bottom: -30%;
        left: -30%;
        width: 400px;
        height: 400px;
        background: rgba(255, 255, 255, 0.05);
        border-radius: 50%;
        animation: float 8s ease-in-out infinite reverse;
    }

    .hero-content {
        position: relative;
        z-index: 2;
    }

    .hero-title {
        font-size: 2.8rem;
        font-weight: 800;
        letter-spacing: -1.5px;
        margin-bottom: 0.5rem;
        line-height: 1.2;
    }

    .hero-subtitle {
        font-size: 1.1rem;
        opacity: 0.9;
        font-weight: 500;
        margin-bottom: 1.5rem;
    }

    .hero-badges {
        display: flex;
        gap: 1rem;
        flex-wrap: wrap;
        margin-top: 1.5rem;
    }

    .badge-hero {
        background: rgba(255, 255, 255, 0.2);
        backdrop-filter: blur(10px);
        padding: 0.75rem 1.25rem;
        border-radius: 50px;
        font-weight: 600;
        font-size: 0.9rem;
        display: inline-flex;
        align-items: center;
        gap: 0.5rem;
        border: 1px solid rgba(255, 255, 255, 0.3);
        transition: var(--transition);
    }

    .badge-hero:hover {
        background: rgba(255, 255, 255, 0.3);
        transform: translateY(-2px);
    }

    .hero-action {
        margin-top: 2rem;
    }

    /* ============ MAIN CARD ============ */

    .main-card {
        background: var(--surface);
        border-radius: var(--radius-2xl);
        padding: 2.5rem;
        box-shadow: var(--shadow-lg);
        border: 1px solid var(--border-light);
        animation: slideInUp 0.7s cubic-bezier(0.34, 1.56, 0.64, 1) forwards;
        animation-delay: 0.2s;
        opacity: 0;
    }

    /* ============ ACTION BAR ============ */

    .action-bar {
        display: flex;
        gap: 1.5rem;
        margin-bottom: 2.5rem;
        flex-wrap: wrap;
        align-items: center;
    }

    .search-container {
        flex: 1;
        min-width: 300px;
        position: relative;
    }

    .search-container input {
        width: 100%;
        padding: 0.95rem 1.25rem 0.95rem 3.5rem;
        border: 2px solid var(--border);
        border-radius: var(--radius-lg);
        font-size: 1rem;
        font-family: 'Inter', sans-serif;
        transition: var(--transition);
        background: var(--surface-secondary);
    }

    .search-container input:focus {
        outline: none;
        border-color: var(--primary);
        background: var(--surface);
        box-shadow: 0 0 0 4px var(--primary-light);
    }

    .search-container input::placeholder {
        color: var(--text-tertiary);
    }

    .search-icon {
        position: absolute;
        left: 1.25rem;
        top: 50%;
        transform: translateY(-50%);
        color: var(--text-tertiary);
        font-size: 1.1rem;
        pointer-events: none;
    }

    .action-buttons {
        display: flex;
        gap: 0.75rem;
        flex-wrap: wrap;
    }

    /* ============ BUTTONS ============ */

    .btn-premium {
        padding: 0.9rem 1.75rem;
        border-radius: var(--radius-lg);
        font-weight: 600;
        font-size: 0.95rem;
        border: none;
        cursor: pointer;
        transition: var(--transition);
        display: inline-flex;
        align-items: center;
        gap: 0.6rem;
        text-decoration: none;
        white-space: nowrap;
    }

    .btn-primary {
        background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
        color: white;
        box-shadow: 0 4px 15px rgba(67, 97, 238, 0.3);
    }

    .btn-primary:hover {
        transform: translateY(-3px);
        box-shadow: 0 8px 25px rgba(67, 97, 238, 0.4);
    }

    .btn-primary:active {
        transform: translateY(-1px);
    }

    .btn-success {
        background: linear-gradient(135deg, var(--success) 0%, #1fa39d 100%);
        color: white;
        box-shadow: 0 4px 15px rgba(46, 196, 182, 0.3);
    }

    .btn-success:hover {
        transform: translateY(-3px);
        box-shadow: 0 8px 25px rgba(46, 196, 182, 0.4);
    }

    .btn-outline {
        background: var(--surface-secondary);
        color: var(--text-primary);
        border: 2px solid var(--border);
    }

    .btn-outline:hover {
        background: var(--surface);
        border-color: var(--primary);
        color: var(--primary);
        transform: translateY(-2px);
    }

    .btn-icon {
        width: 42px;
        height: 42px;
        padding: 0;
        border-radius: var(--radius-md);
        display: flex;
        align-items: center;
        justify-content: center;
        background: var(--surface-secondary);
        color: var(--text-secondary);
        border: 2px solid var(--border);
        transition: var(--transition);
    }

    .btn-icon:hover {
        background: var(--primary);
        color: white;
        border-color: var(--primary);
        transform: rotate(6deg) scale(1.05);
    }

    .btn-icon.danger:hover {
        background: var(--danger);
        border-color: var(--danger);
    }

    /* ============ TABLE ============ */

    .table-wrapper {
        border-radius: var(--radius-lg);
        overflow: hidden;
        border: 1px solid var(--border);
        box-shadow: var(--shadow-sm);
    }

    .table-premium {
        width: 100%;
        border-collapse: collapse;
        font-size: 0.95rem;
    }

    .table-premium thead {
        background: linear-gradient(90deg, var(--surface-secondary) 0%, var(--surface-tertiary) 100%);
        border-bottom: 2px solid var(--border);
    }

    .table-premium th {
        padding: 1.25rem 1.5rem;
        text-align: left;
        font-weight: 700;
        color: var(--text-secondary);
        font-size: 0.85rem;
        text-transform: uppercase;
        letter-spacing: 0.5px;
    }

    .table-premium tbody tr {
        border-bottom: 1px solid var(--border-light);
        transition: var(--transition);
        animation: slideInUp 0.5s cubic-bezier(0.34, 1.56, 0.64, 1) forwards;
    }

    .table-premium tbody tr:hover {
        background: var(--surface-secondary);
        transform: scale(1.001);
    }

    .table-premium td {
        padding: 1.25rem 1.5rem;
        vertical-align: middle;
    }

    /* ============ STUDENT PROFILE CELL ============ */

    .student-cell {
        display: flex;
        align-items: center;
        gap: 1rem;
    }

    .student-avatar {
        width: 48px;
        height: 48px;
        border-radius: var(--radius-md);
        object-fit: cover;
        border: 2px solid var(--border);
        flex-shrink: 0;
        transition: var(--transition);
    }

    .student-cell:hover .student-avatar {
        transform: scale(1.1);
        border-color: var(--primary);
    }

    .student-info {
        flex: 1;
    }

    .student-name {
        font-weight: 700;
        color: var(--text-primary);
        font-size: 0.95rem;
        margin-bottom: 0.25rem;
    }

    .student-meta {
        font-size: 0.8rem;
        color: var(--text-tertiary);
        display: flex;
        gap: 0.5rem;
        align-items: center;
    }

    /* ============ BADGES ============ */

    .badge {
        padding: 0.5rem 1rem;
        border-radius: 20px;
        font-weight: 600;
        font-size: 0.8rem;
        display: inline-flex;
        align-items: center;
        gap: 0.4rem;
        white-space: nowrap;
    }

    .badge-primary {
        background: var(--primary-light);
        color: var(--primary);
    }

    .badge-success {
        background: var(--success-light);
        color: var(--success);
    }

    .badge-warning {
        background: var(--warning-light);
        color: var(--warning);
    }

    /* ============ ACTION GROUP ============ */

    .action-group {
        display: flex;
        gap: 0.5rem;
        justify-content: flex-end;
    }

    /* ============ FLOATING DELETE BUTTON ============ */

    #deleteMassBtn {
        position: fixed;
        bottom: 2rem;
        right: 2rem;
        z-index: 1000;
        display: none;
        animation: slideInUp 0.5s cubic-bezier(0.34, 1.56, 0.64, 1) forwards;
        box-shadow: 0 20px 40px rgba(230, 57, 70, 0.3);
    }

    #deleteMassBtn.show {
        display: flex;
    }

    /* ============ PAGINATION ============ */

    .pagination-container {
        display: flex;
        justify-content: center;
        gap: 0.75rem;
        margin-top: 2.5rem;
        padding-top: 2rem;
        border-top: 1px solid var(--border);
    }

    .pagination-btn {
        padding: 0.75rem 1.25rem;
        border-radius: var(--radius-md);
        border: 2px solid var(--border);
        background: var(--surface);
        color: var(--text-primary);
        font-weight: 600;
        cursor: pointer;
        transition: var(--transition);
        text-decoration: none;
    }

    .pagination-btn:hover {
        border-color: var(--primary);
        color: var(--primary);
        transform: translateY(-2px);
    }

    .pagination-btn.active {
        background: var(--primary);
        color: white;
        border-color: var(--primary);
    }

    /* ============ MODAL ============ */

    .modal-content {
        border-radius: var(--radius-2xl);
        border: none;
        box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.25);
        animation: fadeInScale 0.4s cubic-bezier(0.34, 1.56, 0.64, 1) forwards;
    }

    .modal-header {
        background: linear-gradient(90deg, var(--surface-secondary) 0%, var(--surface-tertiary) 100%);
        border-bottom: 1px solid var(--border);
        border-radius: var(--radius-2xl) var(--radius-2xl) 0 0;
        padding: 1.75rem 2rem;
    }

    .modal-title {
        font-weight: 800;
        font-size: 1.25rem;
        color: var(--text-primary);
    }

    .modal-body {
        padding: 2rem;
    }

    .modal-footer {
        background: var(--surface-secondary);
        border-top: 1px solid var(--border);
        padding: 1.5rem 2rem;
        border-radius: 0 0 var(--radius-2xl) var(--radius-2xl);
    }

    /* ============ EMPTY STATE ============ */

    .empty-state {
        text-align: center;
        padding: 4rem 2rem;
        animation: fadeInScale 0.6s cubic-bezier(0.34, 1.56, 0.64, 1) forwards;
    }

    .empty-state-icon {
        font-size: 4rem;
        color: var(--text-tertiary);
        margin-bottom: 1rem;
        opacity: 0.3;
    }

    .empty-state-title {
        font-size: 1.5rem;
        font-weight: 700;
        color: var(--text-secondary);
        margin-bottom: 0.5rem;
    }

    .empty-state-text {
        color: var(--text-tertiary);
        font-size: 1rem;
    }

    /* ============ CHECKBOX ============ */

    .checkbox-premium {
        width: 20px;
        height: 20px;
        cursor: pointer;
        accent-color: var(--primary);
        transition: var(--transition);
    }

    .checkbox-premium:hover {
        transform: scale(1.15);
    }

    /* ============ DROPDOWN ============ */

    .dropdown-menu {
        border-radius: var(--radius-lg);
        border: 1px solid var(--border);
        box-shadow: var(--shadow-lg);
        padding: 0.5rem;
        animation: slideInUp 0.3s cubic-bezier(0.34, 1.56, 0.64, 1) forwards;
        min-width: 200px;
    }

    .dropdown-item {
        border-radius: var(--radius-md);
        padding: 0.85rem 1.25rem;
        transition: var(--transition);
        font-weight: 500;
        color: var(--text-primary);
        text-decoration: none;
        display: block;
        white-space: nowrap;
    }

    .dropdown-item:hover {
        background: var(--primary-light);
        color: var(--primary);
        transform: translateX(4px);
    }

    .dropdown-item i {
        margin-right: 0.75rem;
        width: 18px;
        text-align: center;
    }

    /* ============ FORM STYLES ============ */

    .form-group {
        margin-bottom: 1.5rem;
    }

    .form-label {
        font-weight: 700;
        font-size: 0.9rem;
        color: var(--text-primary);
        margin-bottom: 0.6rem;
        display: block;
        text-transform: uppercase;
        letter-spacing: 0.5px;
    }

    .form-control {
        width: 100%;
        padding: 0.9rem 1.1rem;
        border: 2px solid var(--border);
        border-radius: var(--radius-md);
        font-size: 0.95rem;
        font-family: 'Inter', sans-serif;
        transition: var(--transition);
        background: var(--surface);
        color: var(--text-primary);
    }

    .form-control:focus {
        outline: none;
        border-color: var(--primary);
        box-shadow: 0 0 0 4px var(--primary-light);
        background: var(--surface);
    }

    .form-control::placeholder {
        color: var(--text-tertiary);
    }

    /* ============ ENHANCED FORM STYLING ============ */
    
    .form-control, select.form-control, textarea.form-control {
        background: linear-gradient(135deg, var(--surface) 0%, var(--surface-secondary) 100%);
        padding: 1rem 1.2rem;
        border: 1.5px solid var(--border);
        border-radius: var(--radius-lg);
        font-weight: 500;
        box-shadow: inset 0 1px 3px rgba(0, 0, 0, 0.02);
        transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
        font-family: 'Inter', sans-serif;
    }

    .form-control:hover {
        border-color: var(--primary-light);
        box-shadow: inset 0 1px 3px rgba(0, 0, 0, 0.02), 0 0 0 3px var(--primary-light);
    }

    .form-control:focus {
        outline: none;
        border-color: var(--primary);
        box-shadow: inset 0 1px 3px rgba(0, 0, 0, 0.02), 0 0 0 4px var(--primary-light);
        background: var(--surface);
        transform: translateY(-2px);
    }

    select.form-control {
        cursor: pointer;
        appearance: none;
        background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 12 12'%3E%3Cpath fill='%234361ee' d='M6 9L1 4h10z'/%3E%3C/svg%3E");
        background-repeat: no-repeat;
        background-position: right 1.2rem center;
        background-color: var(--surface);
        padding-right: 2.5rem;
    }

    textarea.form-control {
        resize: vertical;
        min-height: 120px;
        font-family: 'Inter', sans-serif;
    }

    .form-group input[type="file"] {
        padding: 0.75rem;
        border: 2px dashed var(--border);
        border-radius: var(--radius-lg);
        cursor: pointer;
        transition: var(--transition);
    }

    .form-group input[type="file"]:hover {
        border-color: var(--primary);
        background: var(--primary-light);
    }

    .form-control-file {
        padding: 0.75rem;
    }

    .form-row {
        display: grid;
        grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
        gap: 1.5rem;
    }

    .form-row.full {
        grid-template-columns: 1fr;
    }

    /* ============ MODAL FORM SIZING ============ */

    .modal-lg .modal-body {
        max-height: 70vh;
        overflow-y: auto;
    }

    .modal-lg .form-row {
        grid-template-columns: repeat(2, 1fr);
    }

    .modal-content {
        border: 1px solid var(--border-light);
        border-radius: var(--radius-xl);
        box-shadow: 0 20px 60px rgba(0, 0, 0, 0.15);
        background: var(--surface);
        animation: fadeInScale 0.4s cubic-bezier(0.34, 1.56, 0.64, 1) forwards;
    }

    .modal-header {
        border-bottom: 2px solid var(--border);
        padding: 1.75rem 2rem;
        background: linear-gradient(135deg, var(--primary-light) 0%, rgba(67, 97, 238, 0.05) 100%);
        border-radius: var(--radius-xl) var(--radius-xl) 0 0;
    }

    .modal-title {
        font-size: 1.3rem;
        font-weight: 700;
        color: var(--text-primary);
        display: flex;
        align-items: center;
        gap: 0.75rem;
    }

    .modal-body {
        padding: 2rem;
        max-height: 70vh;
        overflow-y: auto;
    }

    .modal-body::-webkit-scrollbar {
        width: 8px;
    }

    .modal-body::-webkit-scrollbar-track {
        background: var(--surface-secondary);
        border-radius: 10px;
    }

    .modal-body::-webkit-scrollbar-thumb {
        background: var(--border);
        border-radius: 10px;
    }

    .modal-body::-webkit-scrollbar-thumb:hover {
        background: var(--primary);
    }

    .modal-footer {
        border-top: 1px solid var(--border);
        padding: 1.5rem 2rem;
        background: var(--surface-secondary);
        display: flex;
        gap: 1rem;
        justify-content: flex-end;
        border-radius: 0 0 var(--radius-xl) var(--radius-xl);
    }

    .btn-close {
        filter: brightness(0) saturate(100%) invert(0%);
        opacity: 0.5;
        transition: all 0.2s;
    }

    .btn-close:hover {
        opacity: 0.8;
        transform: scale(1.15);
    }

    /* ============ FORM GROUP STYLING ============ */

    .form-group {
        margin-bottom: 1.5rem;
    }

    .form-label {
        font-weight: 700;
        font-size: 0.9rem;
        color: var(--text-primary);
        margin-bottom: 0.75rem;
        display: block;
        text-transform: uppercase;
        letter-spacing: 0.5px;
        transition: all 0.2s;
    }

    .form-group:focus-within .form-label {
        color: var(--primary);
    }

    /* ============ INPUT WRAPPER ============ */

    .input-group {
        position: relative;
    }

    .input-group .form-control {
        padding-left: 2.75rem;
    }

    .input-group-icon {
        position: absolute;
        left: 1rem;
        top: 50%;
        transform: translateY(-50%);
        color: var(--text-tertiary);
        font-size: 1rem;
        pointer-events: none;
        transition: all 0.2s;
    }

    .input-group .form-control:focus ~ .input-group-icon,
    .input-group:focus-within .input-group-icon {
        color: var(--primary);
    }

    /* ============ FORM GROUP STYLING ============ */

    .form-group {
        margin-bottom: 1.5rem;
    }

    .form-label {
        font-weight: 700;
        font-size: 0.9rem;
        color: var(--text-primary);
        margin-bottom: 0.75rem;
        display: block;
        text-transform: uppercase;
        letter-spacing: 0.5px;
        transition: all 0.2s;
    }

    .form-group:focus-within .form-label {
        color: var(--primary);
    }

    /* ============ INPUT WRAPPER ============ */

    .input-group {
        position: relative;
    }

    .input-group .form-control {
        padding-left: 2.75rem;
    }

    .input-group-icon {
        position: absolute;
        left: 1rem;
        top: 50%;
        transform: translateY(-50%);
        color: var(--text-tertiary);
        font-size: 1rem;
        pointer-events: none;
        transition: all 0.2s;
    }

    .input-group .form-control:focus ~ .input-group-icon,
    .input-group:focus-within .input-group-icon {
        color: var(--primary);
    }

    @media (max-width: 768px) {
        .modal-lg .form-row {
            grid-template-columns: 1fr;
        }
    }

    /* ============ ALERT STYLING ============ */

    .alert {
        border-radius: var(--radius-lg);
        border: none;
        padding: 1.25rem;
        margin-bottom: 1.5rem;
        font-weight: 500;
        animation: slideInDown 0.4s ease-out;
    }

    .alert-success {
        background: linear-gradient(135deg, var(--success-light) 0%, rgba(46, 196, 182, 0.05) 100%);
        color: var(--success);
        border-left: 4px solid var(--success);
    }

    .alert-danger {
        background: linear-gradient(135deg, var(--danger-light) 0%, rgba(230, 57, 70, 0.05) 100%);
        color: var(--danger);
        border-left: 4px solid var(--danger);
    }

    .alert-info {
        background: linear-gradient(135deg, var(--primary-light) 0%, rgba(67, 97, 238, 0.05) 100%);
        color: var(--primary);
        border-left: 4px solid var(--primary);
    }

    .alert i {
        margin-right: 0.75rem;
        font-weight: 700;
    }

    /* ============ RESPONSIVE ============ */

    @media (max-width: 768px) {
        .container-premium {
            padding: 1rem;
        }

        .hero-section {
            padding: 2rem 1.5rem;
        }

        .hero-title {
            font-size: 2rem;
        }

        .main-card {
            padding: 1.5rem;
        }

        .action-bar {
            flex-direction: column;
        }

        .search-container {
            width: 100%;
        }

        .action-buttons {
            width: 100%;
        }

        .table-premium {
            font-size: 0.85rem;
        }

        .table-premium th,
        .table-premium td {
            padding: 0.75rem 1rem;
        }

        .action-group {
            flex-direction: column;
            gap: 0.25rem;
        }

        .btn-icon {
            width: 36px;
            height: 36px;
            font-size: 0.9rem;
        }

        .student-cell {
            gap: 0.75rem;
        }

        .student-avatar {
            width: 40px;
            height: 40px;
        }
    }
<style/>