/* === BASE STYLES === */:root {
            --primary-cyan: #00d4ff;
            --primary-magenta: #ff0080;
            --primary-purple: #9d00ff;
            --dark-bg: #0a0a0f;
            --darker-bg: #050508;
            --card-bg: #141420;
            --text-primary: #ffffff;
            --text-secondary: #b8b8c8;
            --accent-glow: #00d4ff;
            --gradient-primary: linear-gradient(135deg, #00d4ff 0%, #9d00ff 50%, #ff0080 100%);
            --gradient-card: linear-gradient(165deg, rgba(20, 20, 32, 0.95) 0%, rgba(10, 10, 15, 0.98) 100%);
        }

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

        html, body {
            overflow-x: hidden;
            max-width: 100vw;
        }

        body {
            font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
            background: var(--dark-bg);
            color: var(--text-primary);
            line-height: 1.7;
            font-size: 16px;
        }

        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
        }

        h1, h2, h3, h4 {
            font-weight: 700;
            line-height: 1.2;
            margin-bottom: 1.5rem;
        }

        h1 {
            font-size: clamp(2.5rem, 5vw, 4.5rem);
            background: var(--gradient-primary);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }

        h2 {
            font-size: clamp(2rem, 4vw, 3.5rem);
            color: var(--text-primary);
        }

        h3 {
            font-size: clamp(1.5rem, 3vw, 2rem);
            color: var(--text-primary);
        }

        h4 {
            font-size: clamp(1.25rem, 2.5vw, 1.75rem);
            color: var(--primary-cyan);
        }

        p {
            color: var(--text-secondary);
            margin-bottom: 1.25rem;
        }

        a {
            color: var(--primary-cyan);
            text-decoration: none;
            transition: all 0.3s ease;
        }

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

        .btn {
            padding: 16px 40px;
            font-size: 18px;
            font-weight: 600;
            border: none;
            border-radius: 50px;
            cursor: pointer;
            transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
            text-transform: uppercase;
            letter-spacing: 1px;
            position: relative;
            overflow: hidden;
            min-height: 44px;
        }

        .btn-primary {
            background: var(--gradient-primary);
            color: white;
            box-shadow: 0 10px 40px rgba(0, 212, 255, 0.3);
        }

        .btn-primary::before {
            content: '';
            position: absolute;
            top: 0;
            left: -100%;
            width: 100%;
            height: 100%;
            background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.3), transparent);
            transition: left 0.5s;
        }

        .btn-primary:hover::before {
            left: 100%;
        }

        .btn-primary:hover {
            transform: translateY(-3px);
            box-shadow: 0 15px 50px rgba(0, 212, 255, 0.5);
        }

        .card {
            background: var(--gradient-card);
            border: 1px solid rgba(0, 212, 255, 0.1);
            border-radius: 20px;
            padding: 2.5rem;
            transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
            position: relative;
            overflow: hidden;
        }

        .card::before {
            content: '';
            position: absolute;
            top: -50%;
            left: -50%;
            width: 200%;
            height: 200%;
            background: radial-gradient(circle, rgba(0, 212, 255, 0.05) 0%, transparent 70%);
            transition: opacity 0.4s;
        }

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

        .card:hover {
            transform: translateY(-10px);
            border-color: rgba(0, 212, 255, 0.4);
            box-shadow: 0 20px 60px rgba(0, 212, 255, 0.2);
        }

        .content-image {
            max-width: 100%;
            margin: 2.5rem auto;
            text-align: center;
        }

        .content-image img {
            max-width: 100%;
            height: auto;
            max-height: 400px;
            object-fit: contain;
            border-radius: 16px;
            border: 1px solid rgba(0, 212, 255, 0.2);
        }

        .content-image.portrait img {
            max-height: 350px;
            max-width: 300px;
        }

        .content-image.wide img {
            max-height: 300px;
            max-width: 100%;
        }

        .content-image figcaption {
            margin-top: 1rem;
            font-size: 0.875rem;
            color: var(--text-secondary);
        }

        .table-responsive {
            overflow-x: auto;
            margin: 2rem 0;
            border-radius: 16px;
            border: 1px solid rgba(0, 212, 255, 0.1);
        }

        table {
            width: 100%;
            border-collapse: collapse;
            background: var(--card-bg);
        }

        th, td {
            padding: 1rem;
            text-align: left;
            border-bottom: 1px solid rgba(0, 212, 255, 0.1);
            color: var(--text-secondary);
        }

        th {
            background: rgba(0, 212, 255, 0.05);
            color: var(--primary-cyan);
            font-weight: 600;
        }

        /* === LAYOUT STYLES === */
        .header {
            position: sticky;
            top: 0;
            z-index: 1000;
            background: rgba(10, 10, 15, 0.95);
            backdrop-filter: blur(20px);
            border-bottom: 1px solid rgba(0, 212, 255, 0.1);
            padding: 1rem 0;
        }

        .header .container {
            gap: 0.1rem;
        }

        .header-content {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 2rem;
        }

        .logo img {
            max-height: 50px;
            height: auto;
            width: auto;
            filter: drop-shadow(0 0 20px rgba(0, 212, 255, 0.5));
        }

        .header .header-nav {
            display: flex;
            align-items: center;
            gap: 2rem;
            flex: none;
        }

        .header .header-nav .nav-list {
            display: flex;
            list-style: none;
            gap: 2rem;
            margin: 0;
            padding-left: 0;
        }

        .hamburger {
            display: none;
            flex-direction: column;
            gap: 5px;
            background: transparent;
            border: none;
            cursor: pointer;
            padding: 0.5rem;
            min-height: 44px;
            min-width: 44px;
            justify-content: center;
            align-items: center;
        }

        .hamburger span {
            width: 25px;
            height: 3px;
            background: var(--primary-cyan);
            border-radius: 2px;
            transition: all 0.3s;
        }

        .hamburger[aria-expanded="true"] span:nth-child(1) {
            transform: rotate(45deg) translate(7px, 7px);
        }

        .hamburger[aria-expanded="true"] span:nth-child(2) {
            opacity: 0;
        }

        .hamburger[aria-expanded="true"] span:nth-child(3) {
            transform: rotate(-45deg) translate(7px, -7px);
        }

        .footer {
            background: var(--darker-bg);
            border-top: 1px solid rgba(0, 212, 255, 0.1);
            padding: 4rem 0 2rem;
            margin-top: 6rem;
        }

        .footer-content {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
            gap: 3rem;
            margin-bottom: 3rem;
        }

        .footer-section h3,
        .footer-nav h3 {
            color: var(--primary-cyan);
            font-size: 1.25rem;
            margin-bottom: 1.5rem;
        }

        .footer-nav ul {
            list-style: none;
        }

        .footer-nav li {
            margin-bottom: 0.75rem;
        }

        .footer-bottom {
            padding-top: 2rem;
            border-top: 1px solid rgba(0, 212, 255, 0.1);
            text-align: center;
            color: var(--text-secondary);
        }

        @media (max-width: 767px) {
            .header-content {
                flex-wrap: wrap;
            }

            .hamburger {
                display: flex;
            }

            .header .header-nav {
                width: 100%;
                display: none;
            }

            .header .header-nav.active {
                display: block;
            }

            .header .header-nav .nav-list {
                flex-direction: column;
                gap: 0;
                background: var(--card-bg);
                border-radius: 12px;
                padding: 1rem;
                margin-top: 1rem;
            }

            .header .header-nav .nav-list li {
                width: 100%;
            }

            .header .header-nav .nav-list a {
                display: block;
                padding: 1rem;
            }

            .header-content .btn-primary {
                width: 100%;
                margin-top: 1rem;
                max-width: 100%;
            }
        }