:root {
            --bg-base: #0a0d12;
            --bg-card: #0d1117;
            --bg-header: #161b22;
            --border-color: #21262d;
            --c-yellow: #ffba49;
            --c-prompt: #58a6ff;
            --c-text: #e6edf3;
            --c-dim: #8b949e;
        }

        body {
            background-color: var(--bg-base);
            color: var(--c-text);
            font-family: 'JetBrains Mono', monospace;
            background-image: 
                linear-gradient(rgba(33, 38, 45, 0.25) 1px, transparent 1px),
                linear-gradient(90deg, rgba(33, 38, 45, 0.25) 1px, transparent 1px);
            background-size: 28px 28px;
            background-position: -1px -1px;
            min-height: 100vh;
            display: flex;
            align-items: center;
            justify-content: center;
            margin: 0;
            padding: 1.5rem;
        }

        /* Centralne okno */
        .gateway-card {
            background: var(--bg-card);
            border: 1px solid var(--border-color);
            border-radius: 12px;
            max-width: 7000px;
            width: 100%;
            overflow: hidden;
            box-shadow: 0 20px 45px rgba(0, 0, 0, 0.6);
        }

        .terminal-header {
            background: var(--bg-header);
            border-bottom: 1px solid var(--border-color);
            padding: 10px 18px;
            font-size: 0.78rem;
        }

        .traffic-dots {
            display: flex;
            gap: 7px;
        }

        .traffic-dot {
            width: 11px;
            height: 11px;
            border-radius: 50%;
            display: inline-block;
        }

        .dot-close { background: #ff5f56; }
        .dot-min { background: #ffbd2e; }
        .dot-max { background: #27c93f; }

        /* Wielkie logo terminalowe */
        .giant-logo {
            font-size: clamp(2.8rem, 8vw, 4.8rem);
            font-weight: 800;
            letter-spacing: -0.04em;
            line-height: 1.1;
            color: #ffffff;
            margin-bottom: 0.5rem;
            user-select: none;
        }

        .giant-logo .prompt-sign {
            color: var(--c-prompt);
        }

        .giant-logo .brand-dot {
            color: var(--c-yellow);
        }

        /* Slogan */
        .slogan-box {
            font-size: clamp(0.95rem, 2.4vw, 1.15rem);
            color: var(--c-dim);
            line-height: 1.5;
        }

        .terminal-caret {
            display: inline-block;
            width: 8px;
            height: 16px;
            background: var(--c-yellow);
            margin-left: 4px;
            animation: blink 1s infinite steps(1);
            vertical-align: middle;
        }

        @keyframes blink {
            0%, 50% { opacity: 1; }
            51%, 100% { opacity: 0; }
        }

        /* Przyciski wyboru języka */
        .lang-button {
            background: #141922;
            border: 1px solid var(--border-color);
            color: var(--c-text);
            text-decoration: none;
            padding: 0.85rem 1.25rem;
            border-radius: 6px;
            font-weight: 600;
            font-size: 0.95rem;
            display: flex;
            align-items: center;
            justify-content: space-between;
            transition: all 0.2s cubic-bezier(0.16, 1, 0.3, 1);
        }

        .lang-button:hover {
            border-color: var(--c-yellow);
            background: #19222d;
            color: var(--c-yellow);
            transform: translateY(-2px);
            box-shadow: 0 6px 16px rgba(0, 0, 0, 0.35);
        }

        .lang-button .lang-code {
            font-size: 0.75rem;
            opacity: 0.65;
            color: var(--c-prompt);
        }

        .footer-note {
            font-size: 0.75rem;
            color: var(--c-dim);
            border-top: 1px solid var(--border-color);
            background: rgba(0, 0, 0, 0.2);
            padding: 9px 18px;
        }