:root {
            --primary-color: #0066ff;
            --primary-dark: #0052cc;
            --primary-light: #4d94ff;
            --secondary-color: #6366f1;
            --accent-color: #10b981;
            --text-primary: #1a1a1a;
            --text-secondary: #6b7280;
            --bg-light: #f8fafc;
            --bg-white: #ffffff;
            --border-color: #e5e7eb;
            --gradient-1: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
            --gradient-2: linear-gradient(135deg, #0066ff 0%, #6366f1 100%);
            --gradient-3: linear-gradient(to right, #00b4db, #0083b0);
            --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
            --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
            --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1);
            --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1);
        }

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

        body {
            font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
            color: var(--text-primary);
            line-height: 1.6;
            overflow-x: hidden;
        }

        h1, h2, h3, h4, h5, h6 {
            font-family: 'Space Grotesk', sans-serif;
            font-weight: 700;
            line-height: 1.2;
        }

        /* Navigation */
        nav {
            background: rgba(255, 255, 255, 0.95);
            backdrop-filter: blur(10px);
            border-bottom: 1px solid var(--border-color);
            padding: 1rem 0;
            position: sticky;
            top: 0;
            z-index: 1000;
            box-shadow: var(--shadow-sm);
        }

        .nav-container {
            max-width: 1280px;
            margin: 0 auto;
            padding: 0 2rem;
            display: flex;
            justify-content: space-between;
            align-items: center;
        }

        .nav-logo img {
            height: 50px;
            transition: transform 0.3s ease;
        }

        .nav-logo img:hover {
            transform: scale(1.05);
        }

        .nav-links {
            display: flex;
            gap: 2.5rem;
            align-items: center;
        }

        .nav-links a {
            text-decoration: none;
            color: var(--text-primary);
            font-weight: 500;
            font-size: 0.95rem;
            transition: color 0.3s ease;
            position: relative;
        }

        .nav-links a::after {
            content: '';
            position: absolute;
            bottom: -5px;
            left: 0;
            width: 0;
            height: 2px;
            background: var(--primary-color);
            transition: width 0.3s ease;
        }

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

        .nav-links a:hover::after {
            width: 100%;
        }

        .menu-toggle {
            display: none;
            background: none;
            border: none;
            font-size: 28px;
            cursor: pointer;
            color: var(--text-primary);
        }

        /* Hero Section */
        .hero {
            position: relative;
            min-height: 600px;
            display: flex;
            align-items: center;
            background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
            overflow: hidden;
        }

        .hero::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            bottom: 0;
            background: url('images/banner.jpg') center/cover;
            opacity: 0.15;
        }

        .hero-content {
            position: relative;
            max-width: 1280px;
            margin: 0 auto;
            padding: 4rem 2rem;
            color: white;
            z-index: 2;
        }

        .hero h1 {
            font-size: clamp(2.5rem, 5vw, 4rem);
            margin-bottom: 1.5rem;
            font-weight: 800;
            letter-spacing: -0.02em;
        }

        .hero p {
            font-size: clamp(1.1rem, 2vw, 1.4rem);
            max-width: 600px;
            margin-bottom: 2rem;
            opacity: 0.95;
        }

        .cta-buttons {
            display: flex;
            gap: 1rem;
            flex-wrap: wrap;
        }

        .btn {
            padding: 1rem 2rem;
            border-radius: 8px;
            font-weight: 600;
            text-decoration: none;
            transition: all 0.3s ease;
            display: inline-block;
            font-size: 1rem;
        }

        .btn-primary {
            background: white;
            color: var(--primary-color);
            box-shadow: var(--shadow-lg);
        }

        .btn-primary:hover {
            transform: translateY(-2px);
            box-shadow: var(--shadow-xl);
        }

        .btn-secondary {
            background: rgba(255, 255, 255, 0.2);
            color: white;
            border: 2px solid white;
            backdrop-filter: blur(10px);
        }

        .btn-secondary:hover {
            background: white;
            color: var(--primary-color);
        }

        /* Section Styles */
        .section {
            padding: 5rem 2rem;
        }

        .section-light {
            background: var(--bg-white);
        }

        .section-gray {
            background: var(--bg-light);
        }

        .container {
            max-width: 1280px;
            margin: 0 auto;
        }

        .section-header {
            text-align: center;
            margin-bottom: 4rem;
        }

        .section-title {
            font-size: clamp(2rem, 4vw, 3rem);
            margin-bottom: 1rem;
            background: var(--gradient-2);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }

        .section-subtitle {
            font-size: 1.2rem;
            color: var(--text-secondary);
            max-width: 700px;
            margin: 0 auto;
        }

        /* Story Section */
        .story-content {
            max-width: 900px;
            margin: 0 auto;
        }

        .story-content p {
            font-size: 1.1rem;
            color: var(--text-secondary);
            margin-bottom: 1.5rem;
            line-height: 1.8;
        }

        .highlight {
            color: var(--primary-color);
            font-weight: 600;
        }

        /* Feature Cards */
        .feature-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
            gap: 2rem;
            margin-top: 3rem;
        }

        .feature-card {
            background: white;
            padding: 2rem;
            border-radius: 16px;
            box-shadow: var(--shadow-md);
            transition: all 0.3s ease;
            border: 1px solid var(--border-color);
        }

        .feature-card:hover {
            transform: translateY(-8px);
            box-shadow: var(--shadow-xl);
        }

        .feature-icon {
            width: 60px;
            height: 60px;
            background: var(--gradient-2);
            border-radius: 12px;
            display: flex;
            align-items: center;
            justify-content: center;
            margin-bottom: 1.5rem;
            font-size: 1.8rem;
        }

        .feature-card h3 {
            font-size: 1.3rem;
            margin-bottom: 1rem;
            color: var(--text-primary);
        }

        .feature-card p {
            color: var(--text-secondary);
            line-height: 1.6;
        }

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

        .expertise-item {
            display: flex;
            align-items: flex-start;
            gap: 1rem;
            padding: 1.5rem;
            background: white;
            border-radius: 12px;
            box-shadow: var(--shadow-sm);
            transition: all 0.3s ease;
        }

        .expertise-item:hover {
            box-shadow: var(--shadow-md);
            transform: translateX(8px);
        }

        .expertise-icon {
            font-size: 1.5rem;
            color: var(--primary-color);
            flex-shrink: 0;
        }

        .expertise-item p {
            color: var(--text-primary);
            font-weight: 500;
        }

        /* Stats Section */
        .stats-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
            gap: 2rem;
            margin-top: 3rem;
        }

        .stat-card {
            text-align: center;
            padding: 2rem;
        }

        .stat-number {
            font-size: 3rem;
            font-weight: 800;
            background: var(--gradient-2);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
            margin-bottom: 0.5rem;
        }

        .stat-label {
            color: var(--text-secondary);
            font-size: 1.1rem;
        }

        /* Tech Stack */
        .tech-category {
            margin-bottom: 2.5rem;
        }

        .tech-category h3 {
            font-size: 1.2rem;
            margin-bottom: 1rem;
            color: var(--text-primary);
        }

        .tech-tags {
            display: flex;
            flex-wrap: wrap;
            gap: 0.8rem;
        }

        .tech-tag {
            background: var(--bg-light);
            color: var(--text-primary);
            padding: 0.6rem 1.2rem;
            border-radius: 25px;
            font-size: 0.9rem;
            font-weight: 500;
            border: 1px solid var(--border-color);
            transition: all 0.3s ease;
        }

        .tech-tag:hover {
            background: var(--primary-color);
            color: white;
            border-color: var(--primary-color);
            transform: translateY(-2px);
        }

        /* Values Section */
        .values-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
            gap: 2rem;
        }

        .value-card {
            text-align: center;
            padding: 2rem;
        }

        .value-emoji {
            font-size: 3rem;
            margin-bottom: 1rem;
            display: block;
        }

        .value-card h3 {
            font-size: 1.3rem;
            margin-bottom: 0.8rem;
        }

        .value-card p {
            color: var(--text-secondary);
        }

        /* Responsive */
        @media (max-width: 768px) {
            .nav-links {
                display: none;
            }

            .menu-toggle {
                display: block;
            }

            .hero {
                min-height: 500px;
            }

            .section {
                padding: 3rem 1.5rem;
            }

            .section-header {
                margin-bottom: 2.5rem;
            }

            .feature-grid,
            .expertise-grid,
            .stats-grid,
            .values-grid {
                gap: 1.5rem;
            }

            .cta-buttons {
                flex-direction: column;
            }

            .btn {
                width: 100%;
                text-align: center;
            }
        }

        /* Sidebar for mobile */
        .sidebar {
            display: none;
            flex-direction: column;
            position: fixed;
            top: 0;
            right: -300px;
            width: 300px;
            height: 100vh;
            background: white;
            box-shadow: var(--shadow-xl);
            z-index: 2000;
            transition: right 0.3s ease;
            padding: 2rem;
        }

        .sidebar.active {
            right: 0;
        }

        .sidebar-close {
            align-self: flex-end;
            background: none;
            border: none;
            font-size: 28px;
            cursor: pointer;
            margin-bottom: 2rem;
        }

        .sidebar a {
            padding: 1rem 0;
            color: var(--text-primary);
            text-decoration: none;
            font-weight: 500;
            border-bottom: 1px solid var(--border-color);
            transition: color 0.3s ease;
        }

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

        .overlay {
            display: none;
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            bottom: 0;
            background: rgba(0, 0, 0, 0.5);
            z-index: 1999;
        }

        .overlay.active {
            display: block;
        }