:root {
            --primary-dark: #1a0d2e;
            --secondary-dark: #16213e;
            --accent-purple: #8b5cf6;
            --accent-light: #a78bfa;
            --text-light: #e5e7eb;
            --text-muted: #9ca3af;
            --danger: #ef4444;
            --success: #10b981;
            --warning: #f59e0b;
        }

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

        body {
            background: linear-gradient(135deg, var(--primary-dark) 0%, var(--secondary-dark) 100%);
            color: var(--text-light);
            font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
            min-height: 100vh;
        }

        .main-container {
            display: flex;
            min-height: 100vh;
        }

        /* Sidebar */
        .sidebar {
            width: 320px;
            background: rgba(26, 13, 46, 0.95);
            backdrop-filter: blur(10px);
            border-right: 1px solid rgba(139, 92, 246, 0.3);
            padding: 20px;
            position: fixed;
            height: 100vh;
            overflow-y: auto;
            z-index: 1000;
        }

        .sidebar h2 {
            color: var(--accent-purple);
            margin-bottom: 30px;
            text-align: center;
            font-weight: 700;
        }

        .version-card {
            background: rgba(139, 92, 246, 0.1);
            border: 1px solid rgba(139, 92, 246, 0.3);
            border-radius: 12px;
            padding: 15px;
            margin-bottom: 15px;
            cursor: pointer;
            transition: all 0.3s ease;
            position: relative;
        }

        .version-card:hover {
            background: rgba(139, 92, 246, 0.2);
            border-color: var(--accent-purple);
            transform: translateY(-2px);
        }

        .version-card.active {
            background: rgba(139, 92, 246, 0.3);
            border-color: var(--accent-light);
            box-shadow: 0 0 20px rgba(139, 92, 246, 0.4);
        }

        .version-title {
            font-weight: 600;
            color: var(--accent-light);
            margin-bottom: 5px;
        }

        .version-info {
            font-size: 0.9em;
            color: var(--text-muted);
        }

        .flash-btn {
            background: linear-gradient(45deg, var(--accent-purple), var(--accent-light));
            border: none;
            color: white;
            padding: 12px 30px;
            border-radius: 25px;
            font-weight: 600;
            cursor: pointer;
            transition: all 0.3s ease;
            box-shadow: 0 4px 15px rgba(139, 92, 246, 0.4);
            margin-top: 20px;
            width: 100%;
        }

        .flash-btn:hover {
            transform: translateY(-2px);
            box-shadow: 0 8px 25px rgba(139, 92, 246, 0.6);
        }

        .flash-btn:disabled {
            opacity: 0.6;
            cursor: not-allowed;
        }

        /* Main Content */
        .content {
            flex: 1;
            margin-left: 320px;
            padding: 20px;
        }

        /* Warning Alert */
        .warning-alert {
            background: rgba(245, 158, 11, 0.1);
            border: 1px solid rgba(245, 158, 11, 0.3);
            border-radius: 12px;
            padding: 20px;
            margin-bottom: 30px;
            position: relative;
        }

        .warning-alert .fa-exclamation-triangle {
            color: var(--warning);
            font-size: 1.2em;
            margin-right: 10px;
        }

        /* Tabs */
        .nav-tabs {
            border-bottom: 2px solid rgba(139, 92, 246, 0.3);
            margin-bottom: 30px;
        }

        .nav-tabs .nav-link {
            background: none;
            border: none;
            color: var(--text-muted);
            font-weight: 500;
            padding: 15px 25px;
            transition: all 0.3s ease;
        }

        .nav-tabs .nav-link:hover {
            color: var(--accent-light);
            border-color: transparent;
        }

        .nav-tabs .nav-link.active {
            color: var(--accent-purple);
            background: rgba(139, 92, 246, 0.1);
            border: 1px solid rgba(139, 92, 246, 0.3);
            border-bottom: 2px solid var(--accent-purple);
        }

        .tab-content {
            background: rgba(22, 33, 62, 0.5);
            border-radius: 12px;
            padding: 30px;
            backdrop-filter: blur(5px);
        }
        .accordion-body{
            color:white;
        }
        /* Feature Cards */
        .feature-card {
            background: rgba(139, 92, 246, 0.1);
            border: 1px solid rgba(139, 92, 246, 0.2);
            border-radius: 12px;
            padding: 20px;
            margin-bottom: 20px;
            transition: all 0.3s ease;
        }

        .feature-card:hover {
            border-color: var(--accent-purple);
            transform: translateY(-2px);
        }

        .feature-icon {
            color: var(--accent-purple);
            font-size: 2em;
            margin-bottom: 15px;
        }

        /* Wiring Diagram */
        .wiring-table {
            background: rgba(26, 13, 46, 0.5);
            border-radius: 12px;
            overflow: hidden;
        }

        .wiring-table th {
            background: var(--accent-purple);
            color: white;
            text-align: center;
            padding: 15px;
        }

        .wiring-table td {
            padding: 12px 15px;
            border-bottom: 1px solid rgba(139, 92, 246, 0.2);
            text-align: center;
        }

        /* Changelog */
        .changelog-item {
            border-left: 3px solid var(--accent-purple);
            padding-left: 20px;
            margin-bottom: 25px;
        }

        .changelog-version {
            color: var(--accent-light);
            font-weight: 600;
            font-size: 1.1em;
        }

        .changelog-date {
            color: var(--text-muted);
            font-size: 0.9em;
        }

        /* Footer */
        .footer {
            background: rgba(26, 13, 46, 0.9);
            border-top: 1px solid rgba(139, 92, 246, 0.3);
            padding: 30px 0;
            text-align: center;
            margin-top: 50px;
        }

        .social-links a {
            color: var(--accent-purple);
            font-size: 1.5em;
            margin: 0 15px;
            transition: all 0.3s ease;
        }

        .social-links a:hover {
            color: var(--accent-light);
            transform: scale(1.2);
        }

        /* Responsive */
        @media (max-width: 768px) {
            .sidebar {
                position: relative;
                width: 100%;
                height: auto;
            }
            
            .content {
                margin-left: 0;
            }
            
            .main-container {
                flex-direction: column;
            }
        }

        /* Scrollbar */
        ::-webkit-scrollbar {
            width: 8px;
        }

        ::-webkit-scrollbar-track {
            background: var(--primary-dark);
        }

        ::-webkit-scrollbar-thumb {
            background: var(--accent-purple);
            border-radius: 4px;
        }

        ::-webkit-scrollbar-thumb:hover {
            background: var(--accent-light);
        }
       .chronos img {
    max-width: 250px;
    height: auto;
    display: block;
    margin: 0 auto;
}
.masonry {
    column-count: 4;
    column-gap: 1em;
  }
  .masonry-item {
    break-inside: avoid;
    margin-bottom: 1em;
    background: #f8f9fa;
    border-radius: 6px;
    overflow: hidden;
    box-shadow: 0 2px 6px rgba(0,0,0,0.1);
  }
  .masonry-item img {
    width: 100%;
    display: block;
  }