:root {
            --primary-color: #1a1a2e;
            --secondary-color: #16213e;
            --accent-color: #0f3460;
            --highlight-color: #384d88;
            --light-bg: #f8f9fa;
        }

        body {
            font-family: 'Lato', sans-serif;
            background: linear-gradient(135deg, #5484ccc4 0%, #97939b 100%);
            min-height: 100vh;
            padding: 40px 0;
        }

        .top-bar {
            background: var(--primary-color);
            padding: 10px 0;
            color: white;
        }

        .navbar {
            background: var(--secondary-color) !important;
            box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
        }

        .page-header {
            text-align: center;
            padding: 60px 0 40px;
            color: white;
        }

        .page-header h1 {
            font-family: 'Oswald', sans-serif;
            font-size: 3.5rem;
            font-weight: 300;
            margin-bottom: 15px;
            text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.3);
        }

        .page-header p {
            font-size: 1.2rem;
            opacity: 0.9;
        }

        .filter-section {
            text-align: center;
            margin-bottom: 40px;
        }

        .filter-btn {
            background: white;
            border: none;
            padding: 12px 30px;
            margin: 5px;
            border-radius: 25px;
            font-weight: 600;
            transition: all 0.3s ease;
            color: var(--primary-color);
            box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
        }

        .filter-btn:hover,
        .filter-btn.active {
            background: var(--highlight-color);
            color: white;
            transform: translateY(-2px);
            box-shadow: 0 6px 20px rgba(35, 134, 247, 0.842);
        }

        .birthday-grid {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
            gap: 30px;
            padding: 20px 0;
        }

        .birthday-card {
            background: white;
            border-radius: 20px;
            overflow: hidden;
            box-shadow: 0 10px 30px rgba(0, 0, 0, 0.2);
            transition: all 0.4s ease;
            position: relative;
        }

        .birthday-card:hover {
            transform: translateY(-10px) scale(1.02);
            box-shadow: 0 20px 40px rgba(0, 0, 0, 0.3);
        }

        .card-header-custom {
            background: linear-gradient(135deg, var(--accent-color) 0%, var(--secondary-color) 100%);
            color: white;
            padding: 20px;
            text-align: center;
            position: relative;
        }

        .fcpenl-logo {
            width: 60px;
            height: auto;
            margin-bottom: 10px;
            background: white;
            padding: 5px;
            border-radius: 10px;
        }

        .card-title-org {
            font-size: 0.75rem;
            margin: 10px 0 5px;
            font-weight: 600;
            letter-spacing: 0.5px;
        }

        .card-subtitle-period {
            font-size: 0.7rem;
            opacity: 0.9;
        }

        .card-image-container {
            position: relative;
            padding: 30px;
            text-align: center;
            background: linear-gradient(to bottom, #f8f9fa 0%, white 100%);
        }

        .profile-image {
            width: 180px;
            height: 180px;
            border-radius: 50%;
            object-fit: cover;
            border: 5px solid white;
            box-shadow: 0 8px 20px rgba(0, 0, 0, 0.15);
            transition: transform 0.3s ease;
        }

        .birthday-card:hover .profile-image {
            transform: scale(1.05);
        }

        .date-badge {
            position: absolute;
            top: 190px;
            right: 190px;
            background: var(--highlight-color);
            color: white;
            padding: 5px 5px;
            border-radius: 5px;
            box-shadow: 0 4px 10px rgba(35, 134, 247, 0.842);
            animation: pulse 2s infinite;
        }

        @keyframes pulse {

            0%,
            100% {
                transform: scale(1);
            }

            50% {
                transform: scale(1.05);
            }
        }

        .date-badge .month {
            display: block;
            font-size: 0.7rem;
            font-weight: 600;
            text-transform: uppercase;
        }

        .date-badge .day {
            display: block;
            font-size: 1.5rem;
            font-weight: bold;
            line-height: 1;
        }

        .card-body-custom {
            padding: 35px;
            text-align: center;
        }

        .birthday-title {
            font-size: 0.85rem;
            color: #666;
            margin-bottom: 10px;
            text-transform: uppercase;
            letter-spacing: 1px;
        }

        .person-name {
            font-size: 1.3rem;
            font-weight: bold;
            color: var(--primary-color);
            margin-bottom: 15px;
            line-height: 1.3;
        }

        .position-info {
            display: flex;
            align-items: center;
            justify-content: center;
            gap: 10px;
            margin: 15px 0;
            padding: 15px;
            background: #f8f9fa;
            border-radius: 10px;
        }

        .position-icon {
            width: 40px;
            height: 40px;
            border-radius: 50%;
            background: white;
            display: flex;
            align-items: center;
            justify-content: center;
            box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
        }

        .position-icon img {
            width: 30px;
            height: 30px;
            object-fit: contain;
        }

        .position-text {
            text-align: left;
            flex: 1;
        }

        .position-text .title {
            font-size: 0.75rem;
            color: #666;
            margin: 0;
        }

        .position-text .org {
            font-size: 0.9rem;
            font-weight: 600;
            color: var(--primary-color);
            margin: 0;
        }

        .wishes-banner {
            background: linear-gradient(135deg, #1f63bb 0%, #57b6f5 100%);
            color: white;
            padding: 15px;
            margin-top: 15px;
            border-radius: 10px;
            font-weight: 600;
            letter-spacing: 1px;
        }

        .confetti {
            position: absolute;
            width: 10px;
            height: 10px;
            background: var(--highlight-color);
            animation: fall 3s linear infinite;
        }

        @keyframes fall {
            to {
                transform: translateY(100vh) rotate(360deg);
            }
        }

        .footer {
            background: var(--primary-color);
            color: white;
            padding: 40px 0 20px;
            margin-top: 80px;
        }

        @media (max-width: 768px) {
            .birthday-grid {
                grid-template-columns: 1fr;
                padding: 5px;
            }

            .page-header h1 {
                font-size: 2.5rem;
            }
        }

        .fade-in {
            animation: fadeIn 0.6s ease-in;
        }

        @keyframes fadeIn {
            from {
                opacity: 0;
                transform: translateY(20px);
            }

            to {
                opacity: 1;
                transform: translateY(0);
            }
        }