/* Le CSS complet que je vous ai fourni précédemment */
        :root {
            --primary-color: #2c3e50;
            --secondary-color: #3498db;
            --accent-color: #e74c3c;
            --light-color: #ecf0f1;
            --dark-color: #2c3e50;
        }
        
        * {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
            font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
        }
        
        body {
            background-color: #f9f9f9;
            color: #333;
            line-height: 1.6;
        }
        
        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
        }
        
        .logo-header {
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding: 1rem 0;
            background-color: white;
            border-bottom: 1px solid #eee;
        }
        
        .logo-header img {
            height: 80px;
            max-width: 100%;
            object-fit: contain;
        }
        
        header {
            background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
            color: white;
            padding: 2rem 0;
            text-align: center;
            position: relative;
            overflow: hidden;
        }
        
        header::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            background: url('data:image/svg+xml;base64,PHN2ZyB4bWxucz0iaHR0cDovL3d3dy53My5vcmcvMjAwMC9zdmciIHdpZHRoPSIxMDAlIiBoZWlnaHQ9IjEwMCUiPjxkZWZzPjxwYXR0ZXJuIGlkPSJwYXR0ZXJuIiB3aWR0aD0iNDAiIGhlaWdodD0iNDAiIHBhdHRlcm5Vbml0cz0idXNlclNwYWNlT25Vc2UiIHBhdHRlcm5UcmFuc2Zvcm09InJvdGF0ZSg0NSkiPjxyZWN0IHdpZHRoPSIyMCIgaGVpZ2h0PSIyMCIgZmlsbD0icmdiYSgyNTUsMjU1LDI1NSwwLjA1KSIvPjwvcGF0dGVybj48L2RlZnM+PHJlY3Qgd2lkdGg9IjEwMCUiIGhlaWdodD0iMTAwJSIgZmlsbD0idXJsKCNwYXR0ZXJuKSIvPjwvc3ZnPg==');
            opacity: 0.3;
        }
        
        .header-content {
            position: relative;
            z-index: 1;
        }
        
        h1 {
            font-size: 2.5rem;
            margin-bottom: 1rem;
            font-weight: 700;
        }
        
        .subtitle {
            font-size: 1.2rem;
            margin-bottom: 1.5rem;
            font-weight: 300;
        }
        
        .date-location {
            background-color: rgba(255, 255, 255, 0.2);
            display: inline-block;
            padding: 0.8rem 1.5rem;
            border-radius: 30px;
            font-weight: 600;
            margin-bottom: 1.5rem;
        }
        
        .main-nav {
            background-color: var(--dark-color);
            position: sticky;
            top: 0;
            z-index: 100;
            box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
        }
        
        .nav-list {
            display: flex;
            justify-content: center;
            list-style: none;
        }
        
        .nav-list li {
            position: relative;
        }
        
        .nav-list a {
            color: white;
            text-decoration: none;
            padding: 1rem 1.5rem;
            display: block;
            transition: all 0.3s ease;
        }
        
        .nav-list a:hover {
            background-color: var(--secondary-color);
        }
        
        section {
            padding: 4rem 0;
        }
        
        .section-title {
            text-align: center;
            margin-bottom: 3rem;
            color: var(--primary-color);
            position: relative;
        }
        
        .section-title::after {
            content: '';
            display: block;
            width: 80px;
            height: 4px;
            background-color: var(--secondary-color);
            margin: 1rem auto 0;
        }
        
        .about-content {
            display: flex;
            flex-wrap: wrap;
            gap: 2rem;
            align-items: center;
        }
        
        .about-text {
            flex: 1;
            min-width: 300px;
        }
        
        .about-image {
            flex: 1;
            min-width: 300px;
            height: 300px;
            background-color: #ddd;
            border-radius: 8px;
            background-image: url('/mmsc/ICCDMS/assets/img/essa.jpeg');
            background-size: cover;
            background-position: center;
            box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
        }
        
        .speakers-grid {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
            gap: 2rem;
        }
        
        .speaker-card {
            background-color: white;
            border-radius: 8px;
            overflow: hidden;
            box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
            transition: transform 0.3s ease;
        }
        
        .speaker-card:hover {
            transform: translateY(-10px);
        }
        
.speaker-image {
    height: 200px !important;
    min-height: 200px !important;
    background-size: cover !important;
    background-position: center !important;
    background-repeat: no-repeat !important;
    border: 1px solid #ddd !important; /* Temporaire pour debug */
}
        
        .speaker-info {
            padding: 1.5rem;
        }
        
        .speaker-name {
            font-weight: 700;
            color: var(--primary-color);
            margin-bottom: 0.5rem;
        }
        
        .committee-grid {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
            gap: 1.5rem;
        }
        
        .committee-member {
            background-color: white;
            padding: 1rem;
            border-radius: 8px;
            box-shadow: 0 3px 10px rgba(0, 0, 0, 0.05);
            text-align: center;
        }
        
        .member-name {
            font-weight: 600;
            color: var(--primary-color);
        }
        
        .member-affiliation {
            font-size: 0.9rem;
            color: #666;
        }

.organizer-contact {
    margin-top: 0.8rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.organizer-contact a {
    color: #3498db;
    text-decoration: none;
    font-size: 0.9rem;
    transition: color 0.3s ease;
}

.organizer-contact a:hover {
    color: #2c3e50;
    text-decoration: underline;
}

.icon {
    fill: #666;
    vertical-align: middle;
}
        .sponsors-section {
            background-color: white;
            padding: 3rem 0;
        }
        
        .sponsors-grid {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(150px, 1fr));
            gap: 2rem;
            align-items: center;
            justify-items: center;
        }
        
        .sponsor-item {
            display: flex;
            align-items: center;
            justify-content: center;
            height: 100px;
        }
        
        .sponsor-item img {
            max-width: 100%;
            max-height: 80px;
            object-fit: contain;
            filter: grayscale(100%);
            opacity: 0.8;
            transition: all 0.3s ease;
        }
        
        .sponsor-item img:hover {
            filter: grayscale(0);
            opacity: 1;
        }
        
        footer {
            background-color: var(--dark-color);
            color: white;
            padding: 3rem 0;
            text-align: center;
        }
        
        .footer-logo {
            font-size: 1.5rem;
            font-weight: 700;
            margin-bottom: 1.5rem;
        }
        
        .footer-info {
            margin-bottom: 1.5rem;
        }
        
        .social-links {
            display: flex;
            justify-content: center;
            gap: 1rem;
            margin-bottom: 1.5rem;
        }
        
        .social-links a {
            color: white;
            text-decoration: none;
            width: 40px;
            height: 40px;
            border-radius: 50%;
            background-color: rgba(255, 255, 255, 0.1);
            display: flex;
            align-items: center;
            justify-content: center;
            transition: all 0.3s ease;
        }
        
        .social-links a:hover {
            background-color: var(--secondary-color);
        }
        
        .copyright {
            font-size: 0.9rem;
            opacity: 0.8;
        }
        
        @media (max-width: 768px) {
            .nav-list {
                flex-direction: column;
                align-items: center;
            }
            
            .about-content {
                flex-direction: column;
            }
            
            .speakers-grid {
                grid-template-columns: 1fr;
            }
            
            .sponsors-grid {
                grid-template-columns: repeat(2, 1fr);
            }
        }
.program-day {
    background: white;
    padding: 2rem;
    margin-bottom: 3rem;
    border-radius: 8px;
    box-shadow: 0 2px 15px rgba(0,0,0,0.05);
}

.plenary {
    background-color: #f8f9fa;
    border-left: 4px solid #e74c3c;
    padding: 1rem;
}

.parallel-session {
    border-left: 4px solid #3498db;
    padding: 0 1rem;
    margin: 1.5rem 0;
}

.presentation {
    display: flex;
    padding: 0.7rem 0;
    border-bottom: 1px dashed #eee;
}
/* Style de base */
#registration-fees {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
}

.fee-table {
    border: none;
    border-radius: 10px;
    overflow: hidden;
}

.list-group-item {
    padding: 1.25rem 1.5rem;
    border-color: rgba(0,0,0,0.05);
}

.fee-category {
    font-weight: 500;
}

.badge {
    font-size: 0.9rem;
    padding: 0.5em 0.75em;
}

/* Icônes */
.fa-li {
    left: -2em;
    width: 2em;
    top: 0.3em;
}

/* Responsive */
@media (max-width: 768px) {
    .fee-category small {
        display: inline !important;
    }
}
/* Registration Fees Section Styling */
#registration-fees .alert-info {
    border-left: 4px solid #0dcaf0;
    background: linear-gradient(135deg, #d1ecf1 0%, #bee5eb 100%);
}

.bg-success.bg-opacity-10 {
    border-left: 4px solid #198754;
}

.fee-category {
    font-weight: 500;
}

.badge {
    font-size: 0.9rem;
    padding: 0.6em 0.9em;
    min-width: 80px;
}

/* Additional Information Styling */
.additional-info {
    border-left: 4px solid #3498db;
}

.fa-ul {
    margin-left: 2rem;
}

.fa-li {
    left: -2em;
    width: 2em;
    top: 0.3em;
    color: #28a745;
}

/* Responsive Adjustments */
@media (max-width: 768px) {
    .fee-category small {
        font-size: 0.8rem;
    }
    
    .badge {
        font-size: 0.8rem;
        padding: 0.5em 0.7em;
        min-width: 70px;
    }
    
    .btn-lg {
        padding: 0.75rem 1.5rem;
        font-size: 1rem;
    }
}

/* Hover Effects */
.fee-table .list-group-item:hover {
    background-color: #f8f9fa;
    transition: background-color 0.3s ease;
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 8px rgba(0,0,0,0.15);
    transition: all 0.3s ease;
}
/* Toutes les autres règles CSS */
/* Abstract Submission Section Styling */
#abstract-submission {
    background-color: #f8f9fa;
}

/* Timeline styling */
.timeline {
    position: relative;
    padding-left: 2rem;
}

.timeline::before {
    content: '';
    position: absolute;
    left: 15px;
    top: 0;
    bottom: 0;
    width: 2px;
    background: #dee2e6;
}

.timeline-item {
    position: relative;
    margin-bottom: 1.5rem;
}

.timeline-item:last-child {
    margin-bottom: 0;
}

.timeline-date {
    font-weight: 600;
    color: #2c3e50;
    margin-bottom: 0.25rem;
}

.timeline-content {
    padding-left: 2rem;
    position: relative;
}

.timeline-content::before {
    content: '';
    position: absolute;
    left: -2rem;
    top: 50%;
    transform: translateY(-50%);
    width: 12px;
    height: 12px;
    border-radius: 50%;
    background: #3498db;
    border: 3px solid white;
    box-shadow: 0 0 0 2px #3498db;
}

.timeline-content i {
    margin-right: 0.5rem;
}

/* Steps list */
.steps-list {
    list-style: none;
    padding-left: 0;
    counter-reset: step-counter;
}

.steps-list li {
    counter-increment: step-counter;
    margin-bottom: 1.5rem;
    padding-left: 3rem;
    position: relative;
}

.steps-list li::before {
    content: counter(step-counter);
    position: absolute;
    left: 0;
    top: 0;
    width: 2rem;
    height: 2rem;
    background: #3498db;
    color: white;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: bold;
}

.steps-list strong {
    color: #2c3e50;
    display: block;
    margin-bottom: 0.25rem;
}

.steps-list p {
    color: #666;
    margin-bottom: 0.5rem;
}

/* Responsive Design */
@media (max-width: 768px) {
    .timeline {
        padding-left: 1.5rem;
    }
    
    .steps-list li {
        padding-left: 2.5rem;
    }
    
    .btn-lg {
        padding: 0.75rem 1.5rem;
        font-size: 1rem;
    }
}
/* Beamer Download Section Styling */
.beamer-download-section {
    border-left: 4px solid #17a2b8;
    background: linear-gradient(135deg, #f8f9fa 0%, #e9ecef 100%);
}

.beamer-download-section h5 {
    color: #2c3e50;
    font-weight: 600;
}

.beamer-download-section .btn {
    padding: 0.75rem 1.5rem;
    font-weight: 500;
    transition: all 0.3s ease;
}

.beamer-download-section .btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 8px rgba(0,0,0,0.15);
}

/* Responsive Design for Beamer Section */
@media (max-width: 768px) {
    .beamer-download-section .row {
        text-align: center;
    }
    
    .beamer-download-section .col-md-8 {
        margin-bottom: 1rem;
    }
    
    .beamer-download-section .col-md-4 {
        text-align: center !important;
    }
    
    .beamer-download-section .btn {
        width: 100%;
    }
}