html { font-size: clamp(14px, 2.5vw, 16px); }
* {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }

        body {
            font-family: 'Source Sans Pro', 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
            background: #e8f5e9;
            min-height: 100vh;
            display: flex;
            flex-direction: column;
        }

        main {
            flex: 1;
            margin-top: 80px;
        }

        .container {
            max-width: 1400px;
            margin: 0 auto;
            padding: 2rem;
            width: 100%;
        }

        .back-button {
            display: inline-flex;
            align-items: center;
            gap: 0.5rem;
            padding: 0.75rem 1.5rem;
            background: white;
            color: #2e7d32;
            text-decoration: none;
            border-radius: 8px;
            font-weight: 600;
            transition: all 0.3s ease;
            box-shadow: 0 2px 8px rgba(0,0,0,0.1);
            margin-bottom: 2rem;
        }

        .back-button:hover {
            background: #2e7d32;
            color: white;
            transform: translateX(-5px);
        }

        .page-header {
            text-align: center;
            margin-bottom: 3rem;
        }

        .page-header h1 {
             display: block;
            font-size: 0.85rem;
            font-weight: 700;
            letter-spacing: 0.25em;
            color: #555;
            text-transform: uppercase;
            margin-bottom: 1rem;
        }

        .page-header p {
           font-family: 'Playfair Display', serif;
            font-size: clamp(2rem, 5vw, 2.5rem);
            color: #000000;
            font-weight: 800;
            line-height: 1.25;
            margin-bottom: 1.5rem;
            }

        .months-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 2.5rem;
            margin-bottom: 3rem;
        }

        .month-card {
            background: white;
            border-radius: 16px;
            overflow: hidden;
            box-shadow: 0 4px 15px rgba(0,0,0,0.1);
            transition: all 0.3s ease;
            text-decoration: none;
            color: inherit;
            display: block;
            cursor: pointer;
            opacity: 0;
            transform: translateY(30px);
            transition: opacity 0.8s cubic-bezier(0.2, 0.9, 0.3, 1), 
                        transform 0.8s cubic-bezier(0.2, 0.9, 0.3, 1),
                        box-shadow 0.3s ease;
        }

        .month-card.revealed {
            opacity: 1;
            transform: translateY(0);
        }

        .month-card:hover {
            transform: translateY(-8px) scale(1.02);
            box-shadow: 0 12px 30px rgba(0,0,0,0.15);
        }

        .card-header {
            position: relative;
            height: 300px;
            background-size: contain;
            background-repeat: no-repeat;
            background-position: center;
            background-color: #f5f5f5;
            overflow: hidden;
            transition: transform 0.5s ease;
            border-bottom: 2px solid #e0e0e0;
        }

        .month-card:hover .card-header {
            transform: scale(1.02);
        }

        .card-footer {
            background: white;
            padding: 1.5rem;
        }

        .card-footer-title {
            font-size: 1.1rem;
            font-weight: 600;
            color: #2e7d32;
            margin-bottom: 0.5rem;
        }

        .card-footer-date {
            display: flex;
            align-items: center;
            gap: 0.5rem;
            color: #66bb6a;
            font-size: 0.95rem;
        }

        .month-card[data-month="january"] .card-header { background-image: url('../../image/2024/GenCharge_Jan2024.png'); }
        .month-card[data-month="february"] .card-header { background-image: url(    '../../image/2024/GenCharge_Feb2024.png'); }
        .month-card[data-month="march"] .card-header { background-image: url('../../image/2024/GenCharge_March2024.jpg'); }
        .month-card[data-month="april"] .card-header { background-image: url('../../image/2024/GenCharge_April2024.jpg'); }
        .month-card[data-month="may"] .card-header { background-image: url('../../image/2024/GenCharge_May2024.png'); }
        .month-card[data-month="june"] .card-header { background-image: url('../../image/2024/GenCharge_June2024.png'); }
        .month-card[data-month="july"] .card-header { background-image: url('../../image/2024/GenCharge_July2024.png'); }
        .month-card[data-month="august"] .card-header { background-image: url('../../image/2024/GenCharge_Aug2024.png'); }
        .month-card[data-month="september"] .card-header { background-image: url('../../image/2024/GenCharge_Sept2024.png'); }
        .month-card[data-month="october"] .card-header { background-image: url('../../image/2024/GenCharge_Oct2024.png'); }
        .month-card[data-month="november"] .card-header { background-image: url('../../image/2024/GenCharge_Nov2024.png'); }
        .month-card[data-month="december"] .card-header { background-image: url('../../image/2024/GenCharge_Dec2024.png'); }

        .modal {
            display: none;
            position: fixed;
            z-index: 2000;
            left: 0;
            top: 0;
            width: 100%;
            height: 100%;
            background-color: rgba(0, 0, 0, 0.9);
            overflow: auto;
            animation: fadeIn 0.3s ease;
        }

        @keyframes fadeIn {
            from { opacity: 0; }
            to { opacity: 1; }
        }

        .modal-content {
            margin: auto;
            display: block;
            max-width: 90%;
            max-height: 90vh;
            position: absolute;
            top: 50%;
            left: 50%;
            transform: translate(-50%, -50%);
            border-radius: 8px;
            box-shadow: 0 0 30px rgba(0,0,0,0.5);
            animation: zoomIn 0.3s ease;
        }

        @keyframes zoomIn {
            from { transform: translate(-50%, -50%) scale(0.9); opacity: 0; }
            to { transform: translate(-50%, -50%) scale(1); opacity: 1; }
        }

        .modal-close {
            position: absolute;
            top: 20px;
            right: 35px;
            color: #f1f1f1;
            font-size: 40px;
            font-weight: bold;
            cursor: pointer;
            transition: color 0.3s ease;
            z-index: 2001;
            width: 50px;
            height: 50px;
            display: flex;
            align-items: center;
            justify-content: center;
            background: rgba(0,0,0,0.5);
            border-radius: 50%;
        }

        .modal-close:hover {
            color: #66bb6a;
            background: rgba(0,0,0,0.8);
        }

        .modal-caption {
            margin: auto;
            display: block;
            width: 80%;
            max-width: 700px;
            text-align: center;
            color: #ccc;
            padding: 10px 0;
            position: absolute;
            bottom: 30px;
            left: 50%;
            transform: translateX(-50%);
            font-size: 1.2rem;
            background: rgba(0,0,0,0.6);
            border-radius: 30px;
            padding: 12px 24px;
        }

        @media (max-width: 1200px) { .months-grid { gap: 1.5rem; } }
        @media (max-width: 1023px) { main { margin-top: 70px; } }
        @media (max-width: 899px) { main { margin-top: 60px; } }

        @media (max-width: 768px) {
            .months-grid { grid-template-columns: repeat(2, 1fr); gap: 1rem; }
            .page-header h1 { font-size: 0.85rem; }
            .container { padding: 1rem; }
            .card-header { height: 300px; }
            .card-footer { padding: 1.5rem; }
            .card-footer-title { font-size: 1.1rem; }
            .modal-content { max-width: 95%; }
            .modal-close { top: 10px; right: 20px; font-size: 35px; width: 45px; height: 45px; }
            .modal-caption { font-size: 1rem; bottom: 20px; width: 90%; }
        }

        @media (max-width: 599px) { main { margin-top: 65px; } }

        @media (max-width: 480px) {
            .months-grid { grid-template-columns: 1fr; }
            .card-header { height: 300px; }
            .page-header h1 { font-size: 0.85rem; }
        }

        .month-card { text-decoration: none; color: inherit; }