* {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }

        body {
            font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
            line-height: 1.6;
            color: #333;
            background: linear-gradient(135deg, #f8f9fa 0%, #e9ecef 100%);
        }

        img {
            width: 100%;
            border-radius: 10px;
        }

        .container {
            width: 90%;
            margin: 0 auto;
            padding: 0;
        }

        /* Header */
        header {
            background: #004291;
            color: white;
            padding: 2rem 0;
            box-shadow: 0 2px 10px rgba(0, 66, 145, 0.2);
        }

        .header-content {
            text-align: center;
        }

        h1 {
            font-size: 3rem;
            font-weight: 700;
            margin-bottom: 0.5rem;
            text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.3);
        }

        .subtitle {
            font-size: 1.3rem;
            opacity: 0.9;
            font-weight: 300;
        }

        /* Navigation */
        nav {
            background: white;
            padding: 1rem 0;
            box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
            position: sticky;
            top: 0;
            z-index: 100;
        }

        .nav-container {
            display: flex;
            justify-content: center;
            gap: 2rem;
            flex-wrap: wrap;
        }

        .nav-link {
            color: #004291;
            text-decoration: none;
            font-weight: 600;
            padding: 0.5rem 1rem;
            border-radius: 25px;
            transition: all 0.3s ease;
        }

        .nav-link:hover {
            background: #004291;
            color: white;
            transform: translateY(-2px);
            box-shadow: 0 4px 15px rgba(0, 66, 145, 0.3);
        }

        /* Main Content */
        main {
            padding: 4rem 0;
        }

        .section {
            margin: 4rem 0;
            background: white;
            border-radius: 8px;
            padding: 3rem;
            box-shadow: 0 2px 10px rgba(0, 0, 0, 0.08);
            border: 1px solid rgba(0, 66, 145, 0.1);
        }

        .section h2 {
            color: #004291;
            font-size: 1.5rem;
            margin-bottom: 1.5rem;
            text-align: center;
        }

        .section h2::after {
            content: '';
            display: block;
            width: 80px;
            height: 4px;
            background: linear-gradient(90deg, #004291, #002557);
            margin: 1rem auto;
            border-radius: 2px;
        }

        p {
            font-size: 1rem;
        }

        .tag {
            background: #004291;
            color: white;
            padding: 0.3rem 0.8rem;
            border-radius: 15px;
            font-size: 0.85rem;
            font-weight: 500;
        }

        /* Activity Cards */
        .activity-card {
            background: white;
            border: 2px solid #004291;
            border-radius: 10px;
            margin-bottom: 30px;
            overflow: hidden;
        }

        .card-header {
            background-color: #004291;
            color: white;
            padding: 20px;
            cursor: pointer;
        }

        .card-header-content {
            display: flex;
            align-items: center;
            justify-content: space-between;
        }

        .card-title h3 {
            font-size: 1.5rem;
            font-weight: 600;
            display: flex;
            align-items: center;
            gap: 15px;
        }

        .card-title p {
            margin-top: 5px;
            opacity: 0.9;
            font-size: 1rem;
        }

        .expand-icon {
            font-size: 1.5rem;
            font-weight: bold;
            width: 30px;
            text-align: center;
            transition: transform 0.3s ease;
        }

        .card-content {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.3s ease;
        }

        .activity-card.active .card-content {
            max-height: 2000px;
        }

        .activity-card.active .expand-icon {
            transform: rotate(180deg);
        }

        .content-inner {
            padding: 30px;
            background-color: #f8f9ff;
        }

        .info-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
            gap: 25px;
            margin-bottom: 30px;
        }

        .info-card {
            background: white;
            padding: 20px;
            border-radius: 8px;
            border-left: 5px solid #004291;
            box-shadow: 0 2px 5px rgba(0, 0, 0, 0.1);
        }

        .info-title {
            font-size: 1.2rem;
            font-weight: 600;
            color: #004291;
            margin-bottom: 15px;
        }

        .info-text {
            color: #555;
            margin-bottom: 8px;
        }

        .info-text strong {
            color: #004291;
            font-weight: 600;
        }

        .tags-container {
            display: flex;
            flex-wrap: wrap;
            gap: 10px;
            margin-top: 15px;
        }

        .program-section {
            background: white;
            padding: 25px;
            border-radius: 8px;
            box-shadow: 0 2px 5px rgba(0, 0, 0, 0.1);
        }

        .program-title {
            font-size: 1.3rem;
            font-weight: 600;
            color: #004291;
            margin-bottom: 20px;
            border-bottom: 2px solid #f0f4ff;
            padding-bottom: 10px;
        }

        .program-list {
            list-style: none;
            padding: 0;
        }

        .program-list li {
            padding: 10px 0;
            border-bottom: 1px solid #f0f4ff;
            color: #555;
            position: relative;
            padding-left: 25px;
        }

        .program-list li:last-child {
            border-bottom: none;
        }

        .program-list li::before {
            content: '▸';
            position: absolute;
            left: 0;
            color: #004291;
            font-weight: bold;
        }



        .upload-placeholder {
            height: 300px;

            border-radius: 10px;
            display: flex;
            align-items: center;
            justify-content: center;
            flex-direction: column;
            color: #004291;
            font-weight: 600;
            font-size: 1.1rem;
            cursor: pointer;
            transition: all 0.3s ease;
        }

        .upload-placeholder:hover {
            background: linear-gradient(135deg, #e6eeff 0%, #d9e5ff 100%);
            border-color: #002557;
        }

        .upload-icon {
            font-size: 3rem;
            margin-bottom: 10px;
        }

        /* Footer */
        footer {
            background: #002557;
            color: white;
            text-align: center;
            padding: 2rem 0;
            margin-top: 4rem;
        }
            .galerie {
      display: grid;
      grid-template-columns: repeat(2, 1fr);
      gap: 20px;
    }

    /* En mobile : une seule colonne */
    @media (max-width: 700px) {
      .galerie {
        grid-template-columns: 1fr;
      }
    }

    .image-container {
      background: white;
      border-radius: 12px;
      overflow: hidden;
      box-shadow: 0 4px 10px rgba(0,0,0,0.1);
      aspect-ratio: 1 / 1; /* carré, toutes les div font la même taille */
      display: flex;
      justify-content: center;
      align-items: center;
    }

    .image-container img {
      width: 100%;
      height: 100%;
      object-fit: cover; /* Remplit sans déformer */
    }

        /* Responsive */
        @media (max-width: 768px) {
            h1 {
                font-size: 2rem;
            }

            .subtitle {
                font-size: 1rem;
            }

            .section {
                padding: 1.5rem;
                margin-bottom: 2rem;
            }

            .section h2 {
                font-size: 1.8rem;
            }

            .nav-container {
                gap: 0rem;
            }

            .nav-link {
                padding: 0.4rem 0.8rem;
                font-size: 0.9rem;
            }

            .card-header {
                padding: 15px;
            }

            .card-title h3 {
                font-size: 1.3rem;
            }

            .content-inner {
                padding: 20px;
            }

            .info-grid {
                grid-template-columns: 1fr;
            }


        }






/* Header */
header {
    background: #004291;
    color: white;
    padding: 2rem 0;
    box-shadow: 0 2px 10px rgba(0, 66, 145, 0.2);
    padding : 2rem 1rem;
}







/* Main Content */
main {
    padding: 4rem 0;
}

.section {
    margin-bottom: 4rem;
    background: white;
    border-radius: 8px;
    padding: 3rem;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.08);
    border: 1px solid rgba(0, 66, 145, 0.1);
}

.section_blanc h2 {
    font-size: 2.5rem;
    margin-bottom: 1.5rem;
    text-align: center;
    position: relative;
}


.countdown-title{
    color: white;
}

.section h2::after {
    content: '';
    display: block;
    width: 80px;
    height: 4px;
    background: linear-gradient(90deg, #004291, #002557);
    margin: 1rem auto;
    border-radius: 2px;
}

/* Countdown Timer */
.countdown-section {
    background: #004291;
    color: white;
    text-align: center;
    padding: 3rem;
    border-radius: 8px;
    margin-bottom: 3rem;
    border: none;
    border-radius: 0;
}

.countdown-title {
    font-size: 2rem;
    margin-bottom: 1rem;
}

.countdown-container {
    display: flex;
    justify-content: center;
    gap: 2rem;
    margin: 2rem 0;
    flex-wrap: wrap;
}

.countdown-item {
    background: rgba(255, 255, 255, 0.1);
    border-radius: 10px;
    padding: 1.5rem;
    min-width: 100px;
    border: 1px solid rgba(255, 255, 255, 0.2);
}

.countdown-number {
    font-size: 2.5rem;
    font-weight: 700;
    display: block;
}

.countdown-label {
    font-size: 0.9rem;
    opacity: 0.9;
    text-transform: uppercase;
    letter-spacing: 1px;
}

/* Event Card */
.event-card {
    background: #f8f9fa;
    border-radius: 8px;
    padding: 2.5rem;
    margin-bottom: 2rem;
    border-left: 4px solid #004291;
    border: 1px solid rgba(0, 66, 145, 0.1);
}

.event-header {
    display: grid;
    grid-template-columns: 1fr;
    gap: 2rem;
    align-items: center;
    margin-bottom: 2rem;
}

@media (min-width: 768px) {
    .event-header {
        grid-template-columns: 2fr 1fr;
    }
}

.event-date {
    background: #004291;
    color: white;
    padding: 1rem;
    border-radius: 8px;
    text-align: center;
    font-weight: 600;
}

.date-day {
    font-size: 2rem;
    display: block;
}

.date-month {
    font-size: 1.2rem;
    opacity: 0.9;
}

/* Inscription Form */
.inscription-section {
    background: white;
    border: 2px dashed #004291;
    border-radius: 8px;
    padding: 2.5rem;
    text-align: center;
    margin-top: 2rem;
}

.inscription-title {
    color: #004291;
    font-size: 1.8rem;
    margin-bottom: 1rem;
}

.inscription-subtitle {
    color: #666;
    font-size: 1.1rem;
    margin-bottom: 2rem;
    line-height: 1.6;
}

.email-input-container {
    display: flex;
    gap: 1rem;
    max-width: 400px;
    margin: 0 auto;
    flex-direction: column;
}

@media (min-width: 768px) {
    .email-input-container {
        flex-direction: row;
    }

}

.email-input {
    flex: 1;
    padding: 1rem;
    border: 2px solid #dee2e6;
    border-radius: 6px;
    font-size: 1rem;
    transition: border-color 0.3s ease;
}

.email-input:focus {
    outline: none;
    border-color: #004291;
    box-shadow: 0 0 0 3px rgba(0, 66, 145, 0.1);
}

.btn-inscription {
    background: #004291;
    color: white;
    padding: 1rem 2rem;
    border: 2px solid #004291;
    border-radius: 6px;
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    white-space: nowrap;
    text-decoration: none;
    margin-top: 20px;
}

.btn-inscription:hover {
    background: transparent;
    color: #004291;
}

/* Modal */
.modal {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.5);
    z-index: 1000;
}

.modal-content {
    background: white;
    border-radius: 8px;
    padding: 2rem;
    max-width: 500px;
    margin: 10% auto;
    position: relative;
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.2);
}

.modal-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1.5rem;
    padding-bottom: 1rem;
    border-bottom: 1px solid #dee2e6;
}

.modal-title {
    color: #004291;
    font-size: 1.5rem;
    margin: 0;
}

.close-btn {
    background: none;
    border: none;
    font-size: 2rem;
    cursor: pointer;
    color: #999;
    padding: 0;
    width: 30px;
    height: 30px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.close-btn:hover {
    color: #004291;
}

.success-message {
    text-align: center;
    color: #155724;
    background: #d4edda;
    border: 1px solid #c3e6cb;
    padding: 1rem;
    border-radius: 6px;
    margin-bottom: 1rem;
}

/* Alert Banner */
.alert-banner {
    background: #fff3cd;
    border: 1px solid #ffeaa7;
    color: #856404;
    padding: 1rem;
    border-radius: 6px;
    margin-bottom: 2rem;
    text-align: center;
}

.alert-banner strong {
    color: #004291;
}

/* Steps */
.steps-container {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
    margin-top: 2rem;
}

.step {
    background: white;
    padding: 1.5rem;
    border-radius: 8px;
    border: 1px solid #dee2e6;
    text-align: center;
}

.step-number {
    background: #004291;
    color: white;
    width: 40px;
    height: 40px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 1rem;
    font-weight: 700;
    font-size: 1.2rem;
}

.step h4 {
    color: #004291;
    margin-bottom: 0.5rem;
}


/* Responsive */
@media (max-width: 768px) {
    h1 {
        font-size: 2rem;
    }
    
    .subtitle {
        font-size: 1rem;
    }
    
    .section {
        padding: 0.5rem;
        margin-bottom: 2rem;
    }
    
    .section h2 {
        font-size: 1.8rem;
    }
    
    .countdown-container {
        gap: 1rem;
    }
    
    .countdown-item {
        padding: 1rem;
        min-width: 80px;
    }
    
    .countdown-number {
        font-size: 2rem;
    }
    
    .event-card {
        padding: 1.5rem;
    }
    
    .modal-content {
        margin: 5% 10px;
        padding: 1.5rem;
    }
               .container{
        width: 100%;
        padding: 0;
    }
}