@import url('https://fonts.googleapis.com/css2?family=JetBrains+Mono:wght@300;400;500;600;700&family=Inter:wght@300;400;500;600;700&display=swap');

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

        body {
            font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
            ;
            min-height: 100vh;
            padding: 20px;
            color: #333;
        }

        .container {
            max-width: 1400px;
            margin: 0 auto;
        }

        .header {
            text-align: center;
            margin-bottom: 15px;
            padding: 15px;
            background: rgba(255, 255, 255, 0.95);
            backdrop-filter: blur(20px);
            border-radius: 20px;
            box-shadow: 0 8px 32px rgba(0, 0, 0, 0.1);
            border: 1px solid rgba(255, 255, 255, 0.2);
        }

        .header h1 {
            font-size: 3.2rem;
            margin-bottom: 10px;
            font-weight: 500;
            background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
            letter-spacing: -0.02em;
        }

        .header .subtitle {
            color: #666;
            font-size: 1.2rem;
            font-weight: 400;
            margin-top: 5px;
        }

        .main-content {
            display: grid;
            grid-template-columns: 320px 1fr;
            gap: 30px;
            margin-bottom: 30px;
        }

        .sidebar {
            display: flex;
            flex-direction: column;
            gap: 20px;
        }

        .sidebar-card {
            background: rgba(255, 255, 255, 0.95);
            backdrop-filter: blur(20px);
            padding: 25px;
            border-radius: 20px;
            box-shadow: 0 8px 32px rgba(0, 0, 0, 0.1);
            border: 1px solid rgba(255, 255, 255, 0.2);
            border-left: 4px solid #667eea;
        }

        .sidebar-card h3 {
            color: #333;
            margin-bottom: 15px;
            font-size: 1.1rem;
            font-weight: 600;
            display: flex;
            align-items: center;
            gap: 10px;
        }

        .sidebar-card ul {
            list-style: none;
        }

        .sidebar-card li {
            margin-bottom: 8px;
            padding-left: 15px;
            position: relative;
            font-size: 0.9rem;
            line-height: 1.5;
        }

        .sidebar-card li::before {
            content: "▶";
            color: #667eea;
            position: absolute;
            left: 0;
            font-size: 0.8rem;
        }

        .skills-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 10px;
            margin-top: 15px;
        }

        .skill-tag {
            background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
            color: white;
            padding: 8px 12px;
            border-radius: 15px;
            font-size: 0.8rem;
            text-align: center;
            font-weight: 500;
        }

        .workshops-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 20px;
        }

        .workshop-card {
            border-radius: 20px;
            color: white;
            position: relative;
            overflow: hidden;
            box-shadow: 0 8px 32px rgba(0, 0, 0, 0.15);
            transition: all 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275);
            cursor: pointer;
            backdrop-filter: blur(20px);
            border: 1px solid rgba(255, 255, 255, 0.1);
        }

        .workshop-card::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            bottom: 0;
            background: linear-gradient(135deg, transparent 0%, rgba(255, 255, 255, 0.1) 100%);
            pointer-events: none;
        }

        .workshop-card:hover {
            transform: translateY(-10px) scale(1.02);
            box-shadow: 0 20px 60px rgba(0, 0, 0, 0.25);
        }

        .workshop-card.level1 {
            background: linear-gradient(135deg, #ff6b6b 0%, #ee5a52 100%);
        }

        .workshop-card.level2 {
            background: linear-gradient(135deg, #feca57 0%, #ff9ff3 100%);
        }

        .workshop-card.level3 {
            background: linear-gradient(135deg, #48dbfb 0%, #0abde3 100%);
        }

        .workshop-card.level4 {
            background: linear-gradient(135deg, #1dd1a1 0%, #10ac84 100%);
        }

        .workshop-card.level5 {
            background: linear-gradient(135deg, #a55eea 0%, #8e44ad 100%);
        }

        .workshop-card.level6 {
            background: linear-gradient(135deg, #fd79a8 0%, #e84393 100%);
        }

        .workshop-header {
            padding: 25px;
            display: flex;
            justify-content: space-between;
            align-items: flex-start;
            position: relative;
            z-index: 2;
        }

        .workshop-content {
            flex: 1;
        }

        .level-badge {
            background: rgba(255, 255, 255, 0.3);
            padding: 8px 16px;
            border-radius: 20px;
            font-size: 0.9rem;
            font-weight: 600;
            margin-bottom: 12px;
            display: inline-block;
            backdrop-filter: blur(10px);
        }

        .workshop-title {
            font-size: 1.4rem;
            font-weight: 700;
            margin-bottom: 10px;
            font-family: 'JetBrains Mono', monospace;
        }

        .workshop-subtitle {
            font-size: 0.9rem;
            opacity: 0.9;
            line-height: 1.4;
        }

        .workshop-subtitle ul {
            list-style: none;
            margin-top: 8px;
        }

        .workshop-subtitle li {
            margin-bottom: 4px;
            padding-left: 12px;
            position: relative;
            font-size: 0.85rem;
        }

        .workshop-subtitle li::before {
            content: "⚡";
            position: absolute;
            left: 0;
            font-size: 0.8rem;
        }

        .expand-button {
            background: rgba(255, 255, 255, 0.3);
            border: none;
            width: 35px;
            height: 35px;
            border-radius: 50%;
            color: white;
            cursor: pointer;
            font-size: 1.1rem;
            transition: all 0.3s ease;
            flex-shrink: 0;
            backdrop-filter: blur(10px);
            display: flex;
            align-items: center;
            justify-content: center;
        }

        .expand-button:hover {
            background: rgba(255, 255, 255, 0.5);
            transform: scale(1.1);
        }

        .expand-button.expanded {
            transform: rotate(180deg) scale(1.1);
        }

        .buttons-container {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.5s ease, padding 0.5s ease;
            padding: 0 25px;
            position: relative;
            z-index: 2;
        }

        .buttons-container.expanded {
            max-height: 300px;
            padding: 0 25px 25px 25px;
        }

        .buttons-grid {
            display: grid;
            grid-template-columns: 1fr;
            gap: 12px;
            margin-top: 20px;
        }

        .action-button {
            background: rgba(255, 255, 255, 0.25);
            border: none;
            padding: 15px 10px;
            border-radius: 15px;
            color: white;
            font-size: 0.85rem;
            font-weight: 500;
            cursor: pointer;
            transition: all 0.3s ease;
            display: flex;
            flex-direction: column;
            align-items: center;
            justify-content: center;
            min-height: 60px;
            text-decoration: none;
            gap: 5px;
            backdrop-filter: blur(10px);
        }

        .action-button:hover {
            background: rgba(255, 255, 255, 0.4);
            transform: translateY(-3px);
            text-decoration: none;
            color: white;
        }

        .action-button i {
            font-size: 1.2rem;
        }

        .footer {
            text-align: center;
            color: rgba(255, 255, 255, 0.8);
            font-size: 0.9rem;
            margin-top: 50px;
            padding: 20px;
            background: rgba(255, 255, 255, 0.1);
            backdrop-filter: blur(20px);
            border-radius: 15px;
        }

        .global-collapse-btn {
            position: fixed;
            bottom: 30px;
            right: 30px;
            background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
            color: white;
            border: none;
            padding: 16px 24px;
            border-radius: 50px;
            font-weight: 600;
            font-size: 0.9rem;
            cursor: pointer;
            box-shadow: 0 12px 40px rgba(102, 126, 234, 0.4);
            backdrop-filter: blur(20px);
            transition: all 0.3s ease;
            z-index: 1000;
            opacity: 0;
            transform: translateY(100px);
            pointer-events: none;
        }

        .global-collapse-btn.visible {
            opacity: 1;
            transform: translateY(0);
            pointer-events: all;
        }

        .global-collapse-btn:hover {
            transform: translateY(-5px) scale(1.05);
            box-shadow: 0 20px 60px rgba(102, 126, 234, 0.6);
        }

        .global-collapse-btn i {
            margin-right: 8px;
        }

        /* Responsive */
        @media (max-width: 1200px) {
            .main-content {
                grid-template-columns: 1fr;
            }

            .workshops-grid {
                grid-template-columns: repeat(2, 1fr);
            }
        }

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

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

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

        /* Animations */
        @keyframes fadeInUp {
            from {
                opacity: 0;
                transform: translateY(30px);
            }

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

        .workshop-card {
            animation: fadeInUp 0.6s ease forwards;
        }

        .workshop-card:nth-child(1) {
            animation-delay: 0.1s;
        }

        .workshop-card:nth-child(2) {
            animation-delay: 0.2s;
        }

        .workshop-card:nth-child(3) {
            animation-delay: 0.3s;
        }

        .workshop-card:nth-child(4) {
            animation-delay: 0.4s;
        }

        .workshop-card:nth-child(5) {
            animation-delay: 0.5s;
        }

        .workshop-card:nth-child(6) {
            animation-delay: 0.6s;
        }

        /* Notification styles */
        .notification {
            position: fixed;
            top: 20px;
            right: 20px;
            background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
            color: white;
            padding: 16px 24px;
            border-radius: 15px;
            box-shadow: 0 12px 40px rgba(0, 0, 0, 0.2);
            backdrop-filter: blur(20px);
            z-index: 9999;
            font-weight: 500;
            transform: translateX(400px);
            transition: all 0.4s ease;
            opacity: 0;
        }

        .notification.show {
            transform: translateX(0);
            opacity: 1;
        }