/* 실시간 대시보드 미리보기 */
        .dashboard-preview {
            background: linear-gradient(180deg, #000 0%, #0a0a0a 100%);
            padding: 120px 0 80px;
            position: relative;
            overflow: hidden;
        }

        .dashboard-preview::before {
            background: 
                radial-gradient(circle at 20% 30%, rgba(91, 76, 255, 0.12) 0%, transparent 50%),
                radial-gradient(circle at 80% 70%, rgba(0, 212, 255, 0.12) 0%, transparent 50%),
                conic-gradient(from 45deg at 50% 50%, 
                    rgba(91, 76, 255, 0.05) 0deg, 
                    transparent 90deg, 
                    rgba(0, 212, 255, 0.05) 180deg, 
                    transparent 270deg, 
                    rgba(91, 76, 255, 0.05) 360deg);
            animation: dashboard-glow 20s ease-in-out infinite;
        }

        @keyframes dashboard-glow {
            0%, 100% { transform: rotate(0deg) scale(1); opacity: 0.8; }
            50% { transform: rotate(180deg) scale(1.1); opacity: 1; }
        }
        
        .dashboard-mockup {
            max-width: 1200px;
            margin: 0 auto;
            background: 
                linear-gradient(135deg, rgba(255, 255, 255, 0.05) 0%, rgba(255, 255, 255, 0.02) 100%),
                linear-gradient(45deg, rgba(91, 76, 255, 0.03) 0%, rgba(0, 212, 255, 0.03) 100%);
            border: 2px solid;
            border-image: linear-gradient(135deg, rgba(91, 76, 255, 0.3), rgba(0, 212, 255, 0.3)) 1;
            border-radius: 25px;
            overflow: hidden;
            box-shadow: 
                0 40px 80px rgba(0, 0, 0, 0.6),
                0 20px 40px rgba(91, 76, 255, 0.1),
                inset 0 1px 0 rgba(255, 255, 255, 0.1);
            position: relative;
            backdrop-filter: blur(20px);
            animation: mockup-float 8s ease-in-out infinite;
        }

        @keyframes mockup-float {
            0%, 100% { transform: translateY(0) rotateX(0deg); }
            50% { transform: translateY(-10px) rotateX(2deg); }
        }

        .dashboard-mockup::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            bottom: 0;
            background: linear-gradient(45deg, transparent, rgba(255, 255, 255, 0.05), transparent);
            animation: mockup-shine 4s ease-in-out infinite;
            pointer-events: none;
            z-index: 1;
        }

        @keyframes mockup-shine {
            0% { transform: translateX(-100%) rotate(45deg); }
            50% { transform: translateX(100%) rotate(45deg); }
            100% { transform: translateX(200%) rotate(45deg); }
        }
        
        .mockup-header {
            background: rgba(255, 255, 255, 0.05);
            padding: 20px 30px;
            border-bottom: 1px solid rgba(255, 255, 255, 0.1);
            display: flex;
            align-items: center;
            gap: 10px;
        }
        
        .mockup-dot {
            width: 12px;
            height: 12px;
            border-radius: 50%;
            background: rgba(255, 255, 255, 0.3);
        }
        
        .mockup-dot:nth-child(1) { background: #ff5f57; }
        .mockup-dot:nth-child(2) { background: #ffbd2e; }
        .mockup-dot:nth-child(3) { background: #28ca42; }
        
        .dashboard-content {
            padding: 40px;
            display: grid;
            grid-template-columns: 1fr 2fr;
            gap: 40px;
        }
        
        .dashboard-sidebar {
            display: flex;
            flex-direction: column;
            gap: 20px;
        }
        
        .dashboard-menu-item {
            padding: 15px 20px;
            background: rgba(255, 255, 255, 0.03);
            border-radius: 10px;
            color: rgba(255, 255, 255, 0.7);
            font-size: 0.95rem;
            transition: all 0.3s ease;
            cursor: pointer;
            display: flex;
            align-items: center;
            gap: 15px;
        }
        
        .dashboard-menu-item:hover,
        .dashboard-menu-item.active {
            background: rgba(91, 76, 255, 0.1);
            color: #fff;
            transform: translateX(5px);
        }
        
        .dashboard-main {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 20px;
        }
        
        .dashboard-widget {
            background: 
                linear-gradient(135deg, rgba(255, 255, 255, 0.06) 0%, rgba(255, 255, 255, 0.02) 100%),
                radial-gradient(circle at top right, rgba(91, 76, 255, 0.1) 0%, transparent 70%);
            border: 1px solid rgba(255, 255, 255, 0.15);
            border-radius: 20px;
            padding: 30px;
            position: relative;
            overflow: hidden;
            backdrop-filter: blur(15px);
            transition: all 0.4s cubic-bezier(0.25, 0.46, 0.45, 0.94);
            cursor: pointer;
        }

        .dashboard-widget:hover {
            transform: translateY(-5px) scale(1.02);
            border-color: rgba(91, 76, 255, 0.4);
            box-shadow: 
                0 20px 40px rgba(0, 0, 0, 0.3),
                0 10px 20px rgba(91, 76, 255, 0.2);
        }

        .dashboard-widget::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            bottom: 0;
            background: linear-gradient(135deg, transparent, rgba(255, 255, 255, 0.03), transparent);
            animation: widget-glow 6s ease-in-out infinite;
            pointer-events: none;
        }

        @keyframes widget-glow {
            0%, 100% { opacity: 0; transform: rotate(0deg); }
            50% { opacity: 1; transform: rotate(180deg); }
        }
        
        .widget-title {
            font-size: 1.1rem;
            color: #fff;
            margin-bottom: 15px;
            font-weight: 600;
        }
        
        .widget-value {
            font-size: 2.5rem;
            font-weight: 700;
            background: linear-gradient(135deg, #5b4cff 0%, #00d4ff 100%);
            -webkit-background-clip: text;
            background-clip: text;
            -webkit-text-fill-color: transparent;
        }
        
        .widget-chart {
            height: 120px;
            background: 
                linear-gradient(to top, rgba(91, 76, 255, 0.03) 0%, transparent 100%);
            border-radius: 12px;
            position: relative;
            overflow: visible;
            margin-top: 15px;
            padding: 10px;
        }

        /* SVG Chart Styles */
        .chart-svg {
            width: 100%;
            height: 100%;
            overflow: visible;
        }

        .chart-grid {
            stroke: rgba(255, 255, 255, 0.05);
            stroke-width: 1;
            fill: none;
        }

        .chart-line-svg {
            fill: none;
            stroke: url(#timeGradient);
            stroke-width: 3;
            stroke-linecap: round;
            stroke-linejoin: round;
            filter: drop-shadow(0 0 8px rgba(91, 76, 255, 0.6));
            animation: draw-line 2s ease-out forwards;
        }

        @keyframes draw-line {
            from {
                stroke-dasharray: 1000;
                stroke-dashoffset: 1000;
            }
            to {
                stroke-dashoffset: 0;
            }
        }

        .chart-area {
            opacity: 0.3;
            animation: fade-in 1.5s ease-out forwards;
        }

        @keyframes fade-in {
            from { opacity: 0; }
            to { opacity: 0.3; }
        }

        .chart-dot {
            fill: #5b4cff;
            filter: drop-shadow(0 0 6px rgba(91, 76, 255, 0.8));
        }

        .chart-dot-pulse {
            fill: none;
            stroke: #5b4cff;
            stroke-width: 2;
            opacity: 0;
            animation: pulse 2s ease-out infinite;
        }

        @keyframes pulse {
            0% {
                r: 4;
                opacity: 1;
            }
            100% {
                r: 20;
                opacity: 0;
            }
        }

        /* Circular Progress Chart */
        .circular-chart {
            transform: rotate(-90deg);
        }

        .chart-bg-circle {
            fill: none;
            stroke: rgba(255, 255, 255, 0.1);
            stroke-width: 8;
        }

        .chart-progress-circle {
            fill: none;
            stroke-width: 8;
            stroke-linecap: round;
            animation: progress 1.5s ease-out forwards;
            filter: drop-shadow(0 0 10px rgba(91, 76, 255, 0.6));
        }

        @keyframes progress {
            from {
                stroke-dasharray: 0 314;
            }
        }

        .chart-percentage {
            fill: #fff;
            font-size: 24px;
            font-weight: 700;
            transform: rotate(90deg);
            transform-origin: center;
        }

        /* Bar Chart */
        .chart-bars rect {
            animation: grow-bar 1.5s ease-out forwards;
            transform-origin: bottom;
            filter: drop-shadow(0 0 5px rgba(91, 76, 255, 0.4));
        }

        .chart-bars rect:nth-child(1) { animation-delay: 0.1s; }
        .chart-bars rect:nth-child(2) { animation-delay: 0.2s; }
        .chart-bars rect:nth-child(3) { animation-delay: 0.3s; }
        .chart-bars rect:nth-child(4) { animation-delay: 0.4s; }
        .chart-bars rect:nth-child(5) { animation-delay: 0.5s; }
        .chart-bars rect:nth-child(6) { animation-delay: 0.6s; }
        .chart-bars rect:nth-child(7) { animation-delay: 0.7s; }
        .chart-bars rect:nth-child(8) { animation-delay: 0.8s; }
        .chart-bars rect:nth-child(9) { animation-delay: 0.9s; }
        .chart-bars rect:nth-child(10) { animation-delay: 1s; }

        @keyframes grow-bar {
            from {
                transform: scaleY(0);
                opacity: 0;
            }
            to {
                transform: scaleY(1);
                opacity: 1;
            }
        }

        /* Interactive Hover Effects */
        .dashboard-widget:hover .chart-line-svg {
            stroke-width: 4;
            filter: drop-shadow(0 0 12px rgba(91, 76, 255, 0.8));
        }

        .dashboard-widget:hover .chart-bars rect {
            transform: scaleY(1.1);
            filter: drop-shadow(0 0 10px rgba(91, 76, 255, 0.6));
        }

        .dashboard-widget:hover .chart-progress-circle {
            stroke-width: 10;
            filter: drop-shadow(0 0 15px rgba(91, 76, 255, 0.8));
        }