:root {
            --blanc-casse: #fffaf6;
            --bordeaux: #7b1426;
            --dore: #d4a017;
            --gris-fonce: #333333;
            --gris-clair: #f8f9fa;
        }

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

        body {
            font-family: 'Inter', sans-serif;
            color: var(--gris-fonce);
            background-color: var(--blanc-casse);
            padding-top: 80px;
        }

        h1, h2, h3, h4, h5, h6 {
            font-family: 'Playfair Display', serif;
            font-weight: 700;
        }

        /* Navbar */
        .navbar-custom {
            background: rgba(255, 250, 246, 0.98);
            backdrop-filter: blur(10px);
            box-shadow: 0 4px 30px rgba(0, 0, 0, 0.1);
            padding: 1rem 0;
        }

        .navbar-brand {
            font-family: 'Playfair Display', serif;
            font-size: 1.8rem;
            font-weight: 700;
            color: var(--bordeaux) !important;
            display: flex;
            align-items: center;
            gap: 10px;
        }

        .navbar-brand i {
            color: var(--dore);
            font-size: 2rem;
        }

        .nav-link {
            color: var(--gris-fonce) !important;
            font-weight: 500;
            margin: 0 0.5rem;
            position: relative;
        }

        .nav-link::after {
            content: '';
            position: absolute;
            bottom: -5px;
            left: 50%;
            width: 0;
            height: 2px;
            background: var(--dore);
            transition: all 0.3s ease;
            transform: translateX(-50%);
        }

        .nav-link:hover::after,
        .nav-link.active::after {
            width: 100%;
        }

        .btn-inscrire {
            background: linear-gradient(135deg, var(--bordeaux), #a01836);
            color: white !important;
            padding: 0.6rem 2rem;
            border-radius: 50px;
            font-weight: 600;
            border: none;
            transition: all 0.3s ease;
            box-shadow: 0 4px 15px rgba(123, 20, 38, 0.3);
        }

        .btn-inscrire:hover {
            transform: translateY(-2px);
            box-shadow: 0 6px 25px rgba(123, 20, 38, 0.4);
        }

        /* Page Header */
        .page-header {
            background: linear-gradient(135deg, rgba(123, 20, 38, 0.95), rgba(160, 24, 54, 0.9)),
                        url('https://images.unsplash.com/photo-1511795409834-ef04bbd61622?w=1920') center/cover;
            padding: 8rem 0 4rem;
            color: white;
            position: relative;
        }

        .page-title {
            font-size: 4rem;
            margin-bottom: 1rem;
            text-shadow: 2px 2px 20px rgba(0, 0, 0, 0.3);
        }

        /* Filter Bar */
        .filter-bar {
            background: white;
            border-radius: 25px;
            padding: 2rem;
            box-shadow: 0 10px 40px rgba(0, 0, 0, 0.08);
            margin-bottom: 3rem;
        }

        .filter-buttons {
            display: flex;
            gap: 1rem;
            flex-wrap: wrap;
            justify-content: center;
        }

        .filter-btn {
            padding: 0.7rem 1.5rem;
            border-radius: 50px;
            border: 2px solid var(--gris-clair);
            background: white;
            color: var(--gris-fonce);
            font-weight: 600;
            cursor: pointer;
            transition: all 0.3s ease;
        }

        .filter-btn:hover,
        .filter-btn.active {
            background: var(--bordeaux);
            color: white;
            border-color: var(--bordeaux);
            transform: translateY(-3px);
        }

        /* Event Card */
        .event-card {
            background: white;
            border-radius: 25px;
            overflow: hidden;
            box-shadow: 0 10px 40px rgba(0, 0, 0, 0.08);
            transition: all 0.4s ease;
            margin-bottom: 2rem;
        }

        .event-card:hover {
            transform: translateY(-10px);
            box-shadow: 0 20px 60px rgba(0, 0, 0, 0.15);
        }

        .event-date-badge {
            position: absolute;
            top: 20px;
            left: 20px;
            background: var(--dore);
            color: white;
            padding: 1rem;
            border-radius: 15px;
            text-align: center;
            box-shadow: 0 5px 20px rgba(212, 160, 23, 0.4);
            min-width: 80px;
        }

        .event-day {
            font-size: 2rem;
            font-weight: 700;
            line-height: 1;
        }

        .event-month {
            font-size: 0.9rem;
            text-transform: uppercase;
            font-weight: 600;
        }

        .event-image {
            width: 100%;
            height: 300px;
            object-fit: cover;
            position: relative;
        }

        .event-type-badge {
            position: absolute;
            top: 20px;
            right: 20px;
            padding: 0.5rem 1rem;
            border-radius: 50px;
            font-weight: 600;
            font-size: 0.85rem;
        }

        .badge-conference {
            background: #6366f1;
            color: white;
        }

        .badge-formation {
            background: #10b981;
            color: white;
        }

        .badge-retraite {
            background: #f59e0b;
            color: white;
        }

        .badge-seminaire {
            background: #ec4899;
            color: white;
        }

        .event-content {
            padding: 2rem;
        }

        .event-title {
            font-size: 1.8rem;
            color: var(--bordeaux);
            margin-bottom: 1rem;
        }

        .event-meta {
            display: flex;
            gap: 2rem;
            flex-wrap: wrap;
            margin-bottom: 1rem;
            color: var(--gris-fonce);
        }

        .meta-item {
            display: flex;
            align-items: center;
            gap: 0.5rem;
        }

        .meta-item i {
            color: var(--dore);
        }

        .event-description {
            color: var(--gris-fonce);
            line-height: 1.8;
            margin-bottom: 1.5rem;
        }

        .event-footer {
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding-top: 1.5rem;
            border-top: 2px solid var(--gris-clair);
        }

        .event-price {
            font-size: 1.5rem;
            font-weight: 700;
            color: var(--bordeaux);
        }

        .btn-register {
            background: linear-gradient(135deg, var(--bordeaux), #a01836);
            color: white;
            padding: 0.8rem 2rem;
            border-radius: 50px;
            font-weight: 600;
            border: none;
            transition: all 0.3s ease;
            text-decoration: none;
        }

        .btn-register:hover {
            transform: translateX(5px);
            box-shadow: 0 5px 20px rgba(123, 20, 38, 0.4);
            color: white;
        }

        /* Upcoming Section */
        .upcoming-banner {
            background: linear-gradient(135deg, var(--dore), #f0b824);
            border-radius: 25px;
            padding: 3rem;
            color: white;
            margin-bottom: 3rem;
            position: relative;
            overflow: hidden;
        }

        .upcoming-banner::before {
            content: '';
            position: absolute;
            top: -50%;
            right: -20%;
            width: 300px;
            height: 300px;
            background: rgba(255, 255, 255, 0.1);
            border-radius: 50%;
        }

        .countdown-timer {
            display: flex;
            gap: 2rem;
            justify-content: center;
            margin-top: 2rem;
        }

        .countdown-item {
            text-align: center;
            background: rgba(255, 255, 255, 0.2);
            padding: 1.5rem;
            border-radius: 15px;
            min-width: 100px;
        }

        .countdown-value {
            font-size: 3rem;
            font-weight: 700;
            line-height: 1;
        }

        .countdown-label {
            font-size: 0.9rem;
            text-transform: uppercase;
            margin-top: 0.5rem;
        }

        /* Footer */
        .footer-modern {
            background: linear-gradient(180deg, var(--gris-fonce), #1a1a1a);
            color: white;
            padding: 4rem 0 2rem;
            margin-top: 6rem;
        }

        .footer-title {
            font-size: 1.3rem;
            margin-bottom: 1.5rem;
            color: var(--dore);
        }

        .footer-link {
            color: rgba(255, 255, 255, 0.8);
            text-decoration: none;
            display: block;
            padding: 0.5rem 0;
            transition: all 0.3s ease;
        }

        .footer-link:hover {
            color: var(--dore);
            padding-left: 10px;
        }

        .social-icon {
            width: 45px;
            height: 45px;
            background: rgba(255, 255, 255, 0.1);
            border-radius: 50%;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            color: white;
            margin: 0 0.5rem;
            transition: all 0.3s ease;
        }

        .social-icon:hover {
            background: var(--dore);
            color: var(--gris-fonce);
            transform: translateY(-5px);
        }

        .scroll-top {
            position: fixed;
            bottom: 30px;
            right: 30px;
            width: 50px;
            height: 50px;
            background: var(--bordeaux);
            color: white;
            border-radius: 50%;
            display: none;
            align-items: center;
            justify-content: center;
            cursor: pointer;
            transition: all 0.3s ease;
            z-index: 1000;
            box-shadow: 0 4px 15px rgba(123, 20, 38, 0.4);
        }

        .scroll-top:hover {
            background: var(--dore);
            transform: translateY(-5px);
        }

        .scroll-top.show {
            display: flex;
        }

        @media (max-width: 768px) {
            .page-title {
                font-size: 2.5rem;
            }

            .event-title {
                font-size: 1.5rem;
            }

            .countdown-timer {
                gap: 1rem;
                flex-wrap: wrap;
            }

            .countdown-item {
                min-width: 80px;
                padding: 1rem;
            }

            .countdown-value {
                font-size: 2rem;
            }
        }
.logo {
  height: 100px; /* taille sur ordinateur */
  width: auto;
}

/* Taille sur mobile (moins de 768px) */
@media (max-width: 768px) {
  .logo {
    height: 50px; /* taille sur téléphone */
  }
}