:root {
            --tkd-blue: #1e5aa8;
            --tkd-blue-dark: #153d73;
            --tkd-blue-light: #3b7dc9;
            --tkd-black: #0d0d0d;
            --tkd-white: #ffffff;
            --tkd-gray: #f5f5f7;
            --tkd-red: #c41e3a;
            --event-club: #1e5aa8;
            --event-competition: #c41e3a;
            --event-training: #2d8a4e;
            --event-national: #7c3aed;
            --event-international: #ea580c;
            --event-holiday: #6b7280;
        }

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

        body {
            font-family: 'Noto Sans', sans-serif;
            background: linear-gradient(135deg, #0f172a 0%, #1e293b 50%, #0f172a 100%);
            min-height: 100vh;
            color: var(--tkd-white);
        }

        .noise-overlay {
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            pointer-events: none;
            opacity: 0.03;
            background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 400 400' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='noiseFilter'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23noiseFilter)'/%3E%3C/svg%3E");
            z-index: 1000;
        }

        header {
            background: linear-gradient(180deg, rgba(30, 90, 168, 0.3) 0%, transparent 100%);
            padding: 2rem;
            position: relative;
            overflow: hidden;
        }

        header::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            height: 4px;
            background: linear-gradient(90deg, var(--tkd-blue), var(--tkd-red), var(--tkd-blue));
        }

        .header-content {
            max-width: 1400px;
            margin: 0 auto;
            display: flex;
            align-items: center;
            gap: 2rem;
            flex-wrap: wrap;
        }

        .logo-container {
            width: 120px;
            height: 120px;
            background: white;
            border-radius: 20px;
            padding: 10px;
            box-shadow: 0 10px 40px rgba(30, 90, 168, 0.4);
            animation: float 6s ease-in-out infinite;
        }

        @keyframes float {
            0%, 100% { transform: translateY(0); }
            50% { transform: translateY(-10px); }
        }

        .logo-container img {
            width: 100%;
            height: 100%;
            object-fit: contain;
        }

        .header-text h1 {
            font-family: 'Bebas Neue', sans-serif;
            font-size: 3.5rem;
            letter-spacing: 0.1em;
            text-transform: uppercase;
            background: linear-gradient(135deg, #fff 0%, #a5b4fc 100%);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }

        .header-text p {
            font-size: 1.1rem;
            color: rgba(255,255,255,0.7);
            margin-top: 0.5rem;
        }

        .controls {
            max-width: 1400px;
            margin: 2rem auto;
            padding: 0 2rem;
            display: flex;
            gap: 1rem;
            flex-wrap: wrap;
            align-items: center;
        }

        .view-toggle {
            display: flex;
            background: rgba(255,255,255,0.1);
            border-radius: 12px;
            padding: 4px;
            backdrop-filter: blur(10px);
        }

        .view-btn {
            padding: 0.75rem 1.5rem;
            border: none;
            background: transparent;
            color: rgba(255,255,255,0.6);
            font-family: 'Noto Sans', sans-serif;
            font-weight: 600;
            cursor: pointer;
            border-radius: 8px;
            transition: all 0.3s ease;
        }

        .view-btn.active {
            background: var(--tkd-blue);
            color: white;
            box-shadow: 0 4px 15px rgba(30, 90, 168, 0.4);
        }

        .view-btn:hover:not(.active) {
            background: rgba(255,255,255,0.1);
            color: white;
        }

        .filter-container {
            display: flex;
            gap: 0.5rem;
            flex-wrap: wrap;
            margin-left: auto;
        }

        .filter-chip {
            padding: 0.5rem 1rem;
            border-radius: 20px;
            border: 2px solid;
            background: transparent;
            font-size: 0.85rem;
            font-weight: 600;
            cursor: pointer;
            transition: all 0.3s ease;
            display: flex;
            align-items: center;
            gap: 0.5rem;
        }

        .filter-chip::before {
            content: '';
            width: 8px;
            height: 8px;
            border-radius: 50%;
        }

        .filter-chip[data-type="club"] { border-color: var(--event-club); color: var(--event-club); }
        .filter-chip[data-type="club"]::before { background: var(--event-club); }
        .filter-chip[data-type="club"].active { background: var(--event-club); color: white; }

        .filter-chip[data-type="competition"] { border-color: var(--event-competition); color: var(--event-competition); }
        .filter-chip[data-type="competition"]::before { background: var(--event-competition); }
        .filter-chip[data-type="competition"].active { background: var(--event-competition); color: white; }

        .filter-chip[data-type="training"] { border-color: var(--event-training); color: var(--event-training); }
        .filter-chip[data-type="training"]::before { background: var(--event-training); }
        .filter-chip[data-type="training"].active { background: var(--event-training); color: white; }

        .filter-chip[data-type="national"] { border-color: var(--event-national); color: var(--event-national); }
        .filter-chip[data-type="national"]::before { background: var(--event-national); }
        .filter-chip[data-type="national"].active { background: var(--event-national); color: white; }

        .filter-chip[data-type="international"] { border-color: var(--event-international); color: var(--event-international); }
        .filter-chip[data-type="international"]::before { background: var(--event-international); }
        .filter-chip[data-type="international"].active { background: var(--event-international); color: white; }

        main {
            max-width: 1400px;
            margin: 0 auto;
            padding: 0 2rem 4rem;
        }

        /* Calendar View */
        .calendar-view {
            display: none;
        }

        .calendar-view.active {
            display: block;
        }

        .calendar-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
            gap: 1.5rem;
        }

        .month-card {
            background: rgba(255,255,255,0.05);
            border-radius: 20px;
            overflow: hidden;
            backdrop-filter: blur(10px);
            border: 1px solid rgba(255,255,255,0.1);
            transition: transform 0.3s ease, box-shadow 0.3s ease;
            animation: fadeInUp 0.6s ease forwards;
            opacity: 0;
        }

        @keyframes fadeInUp {
            from {
                opacity: 0;
                transform: translateY(20px);
            }
            to {
                opacity: 1;
                transform: translateY(0);
            }
        }

        .month-card:hover {
            transform: translateY(-5px);
            box-shadow: 0 20px 40px rgba(30, 90, 168, 0.2);
        }

        .month-header {
            padding: 1.25rem;
            background: linear-gradient(135deg, var(--tkd-blue) 0%, var(--tkd-blue-dark) 100%);
            font-family: 'Bebas Neue', sans-serif;
            font-size: 1.5rem;
            letter-spacing: 0.15em;
            text-transform: uppercase;
            display: flex;
            justify-content: space-between;
            align-items: center;
        }

        .month-header .event-count {
            background: rgba(255,255,255,0.2);
            padding: 0.25rem 0.75rem;
            border-radius: 20px;
            font-family: 'Noto Sans', sans-serif;
            font-size: 0.8rem;
            letter-spacing: 0;
        }

        .month-events {
            padding: 1rem;
            max-height: 400px;
            overflow-y: auto;
        }

        .month-events::-webkit-scrollbar {
            width: 6px;
        }

        .month-events::-webkit-scrollbar-track {
            background: rgba(255,255,255,0.05);
        }

        .month-events::-webkit-scrollbar-thumb {
            background: var(--tkd-blue);
            border-radius: 3px;
        }

        .event-item {
            padding: 0.75rem;
            margin-bottom: 0.5rem;
            border-radius: 10px;
            background: rgba(255,255,255,0.03);
            border-left: 4px solid;
            cursor: pointer;
            transition: all 0.3s ease;
        }

        .event-item:hover {
            background: rgba(255,255,255,0.08);
            transform: translateX(5px);
        }

        .event-item[data-type="club"] { border-color: var(--event-club); }
        .event-item[data-type="competition"] { border-color: var(--event-competition); }
        .event-item[data-type="training"] { border-color: var(--event-training); }
        .event-item[data-type="national"] { border-color: var(--event-national); }
        .event-item[data-type="international"] { border-color: var(--event-international); }

        .event-date {
            font-size: 0.8rem;
            color: rgba(255,255,255,0.5);
            margin-bottom: 0.25rem;
            font-weight: 600;
        }

        .event-name {
            font-weight: 600;
            font-size: 0.95rem;
            line-height: 1.3;
        }

        .event-grade {
            display: inline-block;
            margin-top: 0.5rem;
            padding: 0.2rem 0.5rem;
            background: rgba(255,255,255,0.1);
            border-radius: 4px;
            font-size: 0.7rem;
            font-weight: 700;
            letter-spacing: 0.05em;
        }

        .event-warning {
            color: #fbbf24;
            font-size: 0.75rem;
            display: block;
            margin-top: 0.25rem;
        }

        .no-events {
            text-align: center;
            padding: 2rem;
            color: rgba(255,255,255,0.4);
            font-style: italic;
        }

        /* List View */
        .list-view {
            display: none;
        }

        .list-view.active {
            display: block;
        }

        .list-container {
            background: rgba(255,255,255,0.05);
            border-radius: 20px;
            overflow: hidden;
            backdrop-filter: blur(10px);
            border: 1px solid rgba(255,255,255,0.1);
        }

        .list-header {
            display: grid;
            grid-template-columns: 120px 1fr 150px 100px;
            gap: 1rem;
            padding: 1rem 1.5rem;
            background: rgba(30, 90, 168, 0.3);
            font-weight: 700;
            font-size: 0.85rem;
            text-transform: uppercase;
            letter-spacing: 0.05em;
        }

        .list-item {
            display: grid;
            grid-template-columns: 120px 1fr 150px 100px;
            gap: 1rem;
            padding: 1rem 1.5rem;
            border-bottom: 1px solid rgba(255,255,255,0.05);
            transition: background 0.3s ease;
            align-items: center;
        }

        .list-item:hover {
            background: rgba(255,255,255,0.05);
        }

        .list-item .event-type-badge {
            display: inline-block;
            padding: 0.25rem 0.75rem;
            border-radius: 20px;
            font-size: 0.75rem;
            font-weight: 600;
            text-transform: uppercase;
        }

        .list-item[data-type="club"] .event-type-badge { background: var(--event-club); }
        .list-item[data-type="competition"] .event-type-badge { background: var(--event-competition); }
        .list-item[data-type="training"] .event-type-badge { background: var(--event-training); }
        .list-item[data-type="national"] .event-type-badge { background: var(--event-national); }
        .list-item[data-type="international"] .event-type-badge { background: var(--event-international); }

        /* Legend */
        .legend {
            margin-top: 3rem;
            padding: 1.5rem;
            background: rgba(255,255,255,0.05);
            border-radius: 16px;
            backdrop-filter: blur(10px);
        }

        .legend h3 {
            font-family: 'Bebas Neue', sans-serif;
            font-size: 1.3rem;
            letter-spacing: 0.1em;
            margin-bottom: 1rem;
        }

        .legend-grid {
            display: flex;
            gap: 2rem;
            flex-wrap: wrap;
        }

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

        .legend-color {
            width: 16px;
            height: 16px;
            border-radius: 4px;
        }

        /* Stats Section */
        .stats-section {
            margin-top: 2rem;
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
            gap: 1rem;
        }

        .stat-card {
            background: linear-gradient(135deg, rgba(30, 90, 168, 0.3) 0%, rgba(30, 90, 168, 0.1) 100%);
            border-radius: 16px;
            padding: 1.5rem;
            text-align: center;
            border: 1px solid rgba(255,255,255,0.1);
        }

        .stat-number {
            font-family: 'Bebas Neue', sans-serif;
            font-size: 3rem;
            color: var(--tkd-blue-light);
        }

        .stat-label {
            font-size: 0.9rem;
            color: rgba(255,255,255,0.6);
        }

        /* Event Modal */
        .modal-overlay {
            display: none;
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            bottom: 0;
            background: rgba(0,0,0,0.8);
            backdrop-filter: blur(10px);
            z-index: 1000;
            justify-content: center;
            align-items: center;
            padding: 2rem;
        }

        .modal-overlay.active {
            display: flex;
        }

        .modal-content {
            background: linear-gradient(135deg, #1e293b 0%, #0f172a 100%);
            border-radius: 20px;
            max-width: 500px;
            width: 100%;
            padding: 2rem;
            border: 1px solid rgba(255,255,255,0.1);
            animation: modalIn 0.3s ease;
        }

        @keyframes modalIn {
            from {
                opacity: 0;
                transform: scale(0.9);
            }
            to {
                opacity: 1;
                transform: scale(1);
            }
        }

        .modal-close {
            float: right;
            background: none;
            border: none;
            color: rgba(255,255,255,0.6);
            font-size: 1.5rem;
            cursor: pointer;
            transition: color 0.3s ease;
        }

        .modal-close:hover {
            color: white;
        }

        .modal-title {
            font-family: 'Bebas Neue', sans-serif;
            font-size: 1.8rem;
            margin-bottom: 1rem;
            letter-spacing: 0.05em;
        }

        .modal-details {
            display: flex;
            flex-direction: column;
            gap: 0.75rem;
        }

        .modal-detail {
            display: flex;
            gap: 1rem;
        }

        .modal-label {
            color: rgba(255,255,255,0.5);
            min-width: 100px;
        }

        .modal-value {
            font-weight: 600;
        }

        /* Responsive */
        @media (max-width: 768px) {
            .header-content {
                justify-content: center;
                text-align: center;
            }

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

            .controls {
                flex-direction: column;
                align-items: stretch;
            }

            .filter-container {
                margin-left: 0;
                justify-content: center;
            }

            .list-header, .list-item {
                grid-template-columns: 1fr;
                gap: 0.5rem;
            }

            .list-header > *:not(:first-child) {
                display: none;
            }

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

        /* Print Styles */
        @media print {
            body {
                background: white;
                color: black;
            }

            .controls, .modal-overlay, .noise-overlay {
                display: none !important;
            }

            .month-card {
                break-inside: avoid;
                border: 1px solid #ccc;
            }
        }