:root {
            --primary: rgb(255, 193, 7);
            --primary-dark: rgb(225, 173, 7);
            --dark-bg: #000000;
            --dark-card: #131313;
            --dark-accent: #1a1a1a;
            --text: #ffffff;
            --text-secondary: #a0a0a0;
            --success: #00d26a;
            --warning: #ff9500;
            --danger: #ff375f;
            --glow: 0 0 20px rgba(255, 193, 7, 0.3);
        }

        * {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
            font-family: 'Inter', sans-serif;
        }

        html {
            scroll-behavior: smooth;
        }

        body {
            background-color: var(--dark-bg);
            color: var(--text);
            line-height: 1.6;
            overflow-x: hidden;
            padding-top: 80px;
        }

        .container {
            width: 100%;
            max-width: 1280px;
            margin: 0 auto;
            padding: 0 20px;
        }

        /* Custom Navigation */
        .navbar {
            background: rgba(0, 0, 0, 0.9) !important;
            box-shadow: 0 0.125rem 0.25rem rgba(0, 0, 0, 0.5);
            position: fixed;
            width: 100%;
            top: 0;
            z-index: 1000;
            padding: 0.5rem 0;
            border-bottom: 1px solid rgba(255, 193, 7, 0.1);
        }

        .navbar-brand {
            display: flex;
            align-items: center;
            font-weight: 700;
            font-size: 1.4rem;
            color: var(--text) !important;
            transition: color 0.3s;
        }

        .navbar-brand:hover {
            color: var(--primary) !important;
        }

        .navbar-brand img {
            width: 2.5rem;
            height: 2.5rem;
            margin-right: 0.5rem;
            border-radius: 50%;
        }

        .navbar-nav {
            align-items: center;
        }

        .nav-link {
            color: var(--text) !important;
            font-weight: 500;
            transition: color 0.3s;
            padding: 0.5rem 1rem !important;
        }

        .nav-link:hover {
            color: var(--primary) !important;
        }

        .navbar-toggler {
            border: 1px solid rgba(255, 193, 7, 0.3);
        }

        .navbar-toggler-icon {
            background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 30 30'%3e%3cpath stroke='rgba(255, 193, 7, 0.8)' stroke-linecap='round' stroke-miterlimit='10' stroke-width='2' d='M4 7h22M4 15h22M4 23h22'/%3e%3c/svg%3e");
        }

        /* Hero Section */
        .hero {
            padding: 120px 0 80px;
            position: relative;
            overflow: hidden;
        }

        .hero-content {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 60px;
        }

        .hero-text {
            flex: 1;
            max-width: 600px;
        }

        .hero-visual {
            flex: 1;
            display: flex;
            justify-content: center;
            position: relative;
        }

        h1 {
            font-size: 3.5rem;
            line-height: 1.1;
            margin-bottom: 24px;
            font-weight: 800;
        }

        .highlight {
            color: var(--primary);
            position: relative;
            display: inline-block;
        }

        .highlight::after {
            content: '';
            position: absolute;
            width: 100%;
            height: 8px;
            background: rgba(255, 193, 7, 0.2);
            bottom: 5px;
            left: 0;
            z-index: -1;
            border-radius: 4px;
        }

        .hero p {
            font-size: 1.2rem;
            color: var(--text-secondary);
            margin-bottom: 40px;
            max-width: 540px;
        }

        .hero-buttons {
            display: flex;
            gap: 20px;
            margin-top: 30px;
        }

        .btn {
            padding: 14px 32px;
            border-radius: 8px;
            font-weight: 600;
            cursor: pointer;
            transition: all 0.3s ease;
            text-decoration: none;
            display: inline-block;
            font-size: 1rem;
            border: none;
            outline: none;
        }

        .btn-outline {
            border: 2px solid rgba(255, 255, 255, 0.2);
            color: var(--text);
            background: transparent;
        }

        .btn-outline:hover {
            border-color: var(--primary);
            background: rgba(255, 193, 7, 0.05);
        }

        .btn-primary {
            background: var(--primary);
            color: var(--dark-bg);
            box-shadow: var(--glow);
        }

        .btn-primary:hover {
            background: var(--primary-dark);
            transform: translateY(-2px);
            box-shadow: 0 5px 15px rgba(255, 193, 7, 0.4);
        }

        .floating-cards {
            position: relative;
            width: 500px;
            height: 400px;
        }

        .floating-card {
            position: absolute;
            width: 280px;
            background: var(--dark-card);
            border-radius: 16px;
            padding: 24px;
            box-shadow: 0 10px 30px rgba(0, 0, 0, 0.5);
            border: 1px solid rgba(255, 255, 255, 0.05);
            transition: transform 0.5s ease, opacity 0.5s ease;
        }

        .card-1 {
            top: 0;
            left: 0;
            transform: rotate(-5deg);
            border-top: 3px solid var(--primary);
            z-index: 3;
            animation: float 6s ease-in-out infinite;
        }

        .card-2 {
            bottom: 40px;
            right: 0;
            transform: rotate(3deg);
            z-index: 2;
            animation: float 7s ease-in-out infinite 1s;
        }

        .card-3 {
            top: 50%;
            left: 50%;
            transform: translate(-50%, -50%) rotate(1deg);
            z-index: 1;
            opacity: 0.7;
            animation: float 8s ease-in-out infinite 0.5s;
        }

        @keyframes float {

            0%,
            100% {
                transform: translateY(0) rotate(var(--rotation, 0deg));
            }

            50% {
                transform: translateY(-15px) rotate(var(--rotation, 0deg));
            }
        }

        .card-header {
            display: flex;
            justify-content: space-between;
            align-items: center;
            margin-bottom: 20px;
            padding-bottom: 15px;
            border-bottom: 1px solid rgba(255, 255, 255, 0.08);
        }

        .card-title {
            font-weight: 600;
            font-size: 1rem;
        }

        .card-status {
            width: 10px;
            height: 10px;
            border-radius: 50%;
            background: var(--success);
            box-shadow: 0 0 10px var(--success);
        }

        .services {
            display: flex;
            flex-direction: column;
            gap: 12px;
        }

        .service {
            background: rgba(255, 255, 255, 0.03);
            padding: 12px 15px;
            border-radius: 10px;
            font-size: 0.85rem;
            display: flex;
            align-items: center;
            gap: 10px;
            cursor: move;
            transition: all 0.3s ease;
            border: 1px solid transparent;
        }

        .service:hover {
            background: rgba(255, 255, 255, 0.05);
            border-color: rgba(255, 193, 7, 0.2);
            transform: translateY(-2px);
        }

        .service-icon {
            color: var(--primary);
            font-size: 1rem;
        }

        /* Features Section */
        .features {
            padding: 100px 0;
            position: relative;
        }

        .section-header {
            text-align: center;
            margin-bottom: 80px;
        }

        .section-header h2 {
            font-size: 2.8rem;
            margin-bottom: 20px;
            font-weight: 700;
        }

        .section-header p {
            color: var(--text-secondary);
            max-width: 600px;
            margin: 0 auto;
            font-size: 1.1rem;
        }

        .features-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
            gap: 30px;
        }

        .feature-card {
            background: #0f0f0f;
            border-radius: 16px;
            padding: 40px 30px;
            transition: all 0.4s ease;
            border: 1px solid rgba(255, 255, 255, 0.05);
            position: relative;
            overflow: hidden;
        }

        .feature-card::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            background: linear-gradient(135deg, rgba(255, 193, 7, 0.03) 0%, transparent 50%);
            opacity: 0;
            transition: opacity 0.4s ease;
        }

        .feature-card:hover {
            transform: translateY(-10px);
            box-shadow: 0 15px 30px rgba(0, 0, 0, 0.3);
        }

        .feature-card:hover::before {
            opacity: 1;
        }

        .feature-icon {
            width: 70px;
            height: 70px;
            background: rgba(255, 193, 7, 0.1);
            border-radius: 16px;
            display: flex;
            align-items: center;
            justify-content: center;
            margin-bottom: 25px;
            color: var(--primary);
            font-size: 1.8rem;
            position: relative;
            z-index: 2;
        }

        .feature-card h3 {
            margin-bottom: 15px;
            font-size: 1.4rem;
            font-weight: 600;
            position: relative;
            z-index: 2;
        }

        .feature-card p {
            color: var(--text-secondary);
            position: relative;
            z-index: 2;
        }

        .demo {
            padding: 100px 0;
            background: #0000;
            position: relative;
        }

        .demo-container {
            display: flex;
            gap: 60px;
            align-items: flex-start;
        }

        .demo-instructions {
            flex: 1;
            position: relative;
            z-index: 2;
        }

        .demo-instructions h3 {
            font-size: 2.2rem;
            margin-bottom: 20px;
            font-weight: 700;
        }

        .demo-instructions p {
            color: var(--text-secondary);
            margin-bottom: 30px;
            font-size: 1.1rem;
        }

        .notification-methods {
            display: flex;
            flex-wrap: wrap;
            gap: 15px;
            margin-top: 30px;
        }

        .notification-method {
            display: flex;
            align-items: center;
            gap: 10px;
            background: rgba(255, 255, 255, 0.05);
            padding: 12px 20px;
            border-radius: 10px;
            font-size: 0.95rem;
            transition: all 0.3s ease;
        }

        .notification-method:hover {
            background: rgba(255, 193, 7, 0.1);
            transform: translateY(-3px);
        }

        .notification-method i {
            color: var(--primary);
            font-size: 1.1rem;
        }

        .demo-area {
            flex: 1;
            background: #0f0f0f;
            border-radius: 20px;
            padding: 40px;
            border: 1px solid rgba(255, 255, 255, 0.05);
            box-shadow: 0 10px 30px rgba(0, 0, 0, 0.2);
            position: relative;
            z-index: 2;
            width: 100%;
        }

        .demo-area h3 {
            margin-bottom: 10px;
            font-size: 1.5rem;
        }

        .demo-area>p {
            color: var(--text-secondary);
            margin-bottom: 30px;
        }

        .clusters-container {
            display: flex;
            gap: 25px;
            margin-top: 20px;
        }

        .demo-cluster {
            flex: 1;
            background: rgba(0, 0, 0, 0.3);
            border-radius: 16px;
            padding: 25px;
            min-height: 320px;
            border: 2px dashed rgba(255, 255, 255, 0.08);
            transition: all 0.3s ease;
        }

        .demo-cluster.active {
            border-color: var(--primary);
            background: rgba(255, 193, 7, 0.03);
        }

        .demo-cluster h4 {
            margin-bottom: 20px;
            text-align: center;
            padding-bottom: 15px;
            border-bottom: 1px solid rgba(255, 255, 255, 0.08);
            display: flex;
            align-items: center;
            justify-content: center;
            gap: 10px;
        }

        .demo-services {
            display: flex;
            flex-direction: column;
            gap: 15px;
        }

        .demo-service {
            background: rgba(255, 193, 7, 0.08);
            padding: 15px;
            border-radius: 12px;
            display: flex;
            align-items: center;
            gap: 12px;
            cursor: move;
            transition: all 0.3s ease;
            border: 1px solid transparent;
        }

        .demo-service:hover {
            background: rgba(255, 193, 7, 0.12);
            border-color: rgba(255, 193, 7, 0.3);
        }

        .demo-service i {
            color: var(--primary);
            font-size: 1.2rem;
        }

        .service-dragging {
            opacity: 0.5;
            transform: scale(0.98);
        }

        /* CTA Section */
        .cta {
            padding: 120px 0;
            text-align: center;
            position: relative;
            overflow: hidden;
        }

        .cta-content {
            position: relative;
            z-index: 2;
            max-width: 700px;
            margin: 0 auto;
        }

        .cta h2 {
            font-size: 3rem;
            margin-bottom: 20px;
            font-weight: 800;
        }

        .cta p {
            color: var(--text-secondary);
            margin-bottom: 40px;
            font-size: 1.2rem;
        }

        /* Footer */
        footer {
            background: #000;
            padding: 80px 0 30px;
            border-top: 1px solid rgba(255, 255, 255, 0.05);
        }

        .footer-content {
            display: flex;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 50px;
            margin-bottom: 50px;
        }

        .footer-column {
            flex: 1;
            min-width: 200px;
        }

        .footer-column h3 {
            margin-bottom: 25px;
            font-size: 1.2rem;
            font-weight: 600;
        }

        .footer-links {
            list-style: none;
        }

        .footer-links li {
            margin-bottom: 12px;
        }

        .footer-links a {
            color: var(--text-secondary);
            text-decoration: none;
            transition: color 0.3s ease;
            font-size: 0.95rem;
        }

        .footer-links a:hover {
            color: var(--primary);
        }

        .footer-bottom {
            text-align: center;
            padding-top: 30px;
            border-top: 1px solid rgba(255, 255, 255, 0.05);
            color: var(--text-secondary);
            font-size: 0.9rem;
        }

        /* Toast Notification */
        .toast {
            position: fixed;
            bottom: 30px;
            right: 30px;
            background: var(--dark-card);
            color: var(--text);
            padding: 16px 24px;
            border-radius: 12px;
            box-shadow: 0 10px 25px rgba(0, 0, 0, 0.3);
            border-left: 4px solid var(--primary);
            z-index: 1000;
            transform: translateX(150%);
            transition: transform 0.4s ease;
            display: flex;
            align-items: center;
            gap: 12px;
            max-width: 350px;
        }

        .toast.show {
            transform: translateX(0);
        }

        .toast i {
            color: var(--primary);
            font-size: 1.2rem;
        }

        /* Responsive Styles */
        @media (max-width: 1100px) {
            .hero-content {
                flex-direction: column;
                text-align: center;
            }

            .hero-text {
                order: 2;
            }

            .hero-visual {
                order: 1;
            }

            .demo-container {
                flex-direction: column;
            }
        }

        @media (max-width: 768px) {
            h1 {
                font-size: 2.5rem;
            }

            .section-header h2 {
                font-size: 2.2rem;
            }

            .floating-cards {
                width: 100%;
                height: 300px;
            }

            .floating-card {
                width: 220px;
            }

            .clusters-container {
                flex-direction: column;
            }

            .hero-buttons {
                flex-direction: column;
                align-items: center;
            }
        }

        .notification-panel {
            border-radius: 8px;
            background-color: rgb(15, 15, 15) !important;
            color: #fff;
            padding: 1.25rem;
            box-shadow: 0 10px 30px rgba(0, 0, 0, 0.55);
            border: 1px solid rgba(255, 255, 255, 0.03);
            overflow: hidden;
        }

        .panel-header {
            display: flex;
            gap: 0.9rem;
            align-items: center;
            margin-bottom: 0.6rem;
        }

        .notify-icon {
            width: 56px;
            height: 56px;
            border-radius: 10px;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            font-size: 1.25rem;
            color: #fff;
            background: linear-gradient(180deg, rgba(243, 156, 18, 0.18), rgba(243, 156, 18, 0.06));
            box-shadow: 0 6px 18px rgba(243, 156, 18, 0.08), inset 0 -6px 12px rgba(255, 255, 255, 0.02);
            transform: translateZ(0);
        }

        .notify-icon.animated i {
            animation: pop 2s ease-in-out infinite;
            display: inline-block;
        }

        @keyframes pop {

            0%,
            100% {
                transform: translateY(0) rotate(0deg);
            }

            50% {
                transform: translateY(-3px) rotate(-8deg);
            }
        }

        .list-group-item {
            background: transparent;
            border-color: rgba(255, 255, 255, 0.06);
            transition: transform 0.18s ease, box-shadow 0.18s ease, background 0.18s ease;
            padding: 0.9rem 0.85rem;
        }

        .list-group-item:hover {
            transform: translateY(-6px);
            box-shadow: 0 14px 30px rgba(0, 0, 0, 0.6);
            background: linear-gradient(180deg, rgba(255, 255, 255, 0.012), rgba(255, 255, 255, 0.008));
        }

        .service-icon {
            font-size: 1.25rem;
            color: #fff;
            opacity: 0.95;
            width: 28px;
            text-align: center;
        }

        .status-badge {
            min-width: 96px;
            text-align: right;
        }

        .notification-tip {
            color: rgba(255, 255, 255, 0.78) !important;
            font-size: 0.9rem;
        }

        @media (max-width: 991px) {
            .notify-icon {
                width: 48px;
                height: 48px;
            }
        }