* {
        margin: 0;
        padding: 0;
        box-sizing: border-box;
    }
    body.dark {
  --bg-primary: #00030a;
  --bg-secondary: rgba(8, 15, 27, 0.788);
  --bg-tertiary: rgba(13, 19, 27, 0.9);
  --bg-glass: rgba(30, 41, 59, 0.6);
  --bg-glass-hover: rgba(30, 41, 59, 0.8);
  --bg-glass-light: rgba(255, 255, 255, 0.05);
  --text-primary: #ffffff;
  --text-secondary: #e2e8f0;
  --text-muted: #94a3b8;
  --border: rgba(255, 255, 255, 0.1);
  --border-light: rgba(255, 255, 255, 0.15);
  --border-glass: rgba(255, 255, 255, 0.1);
}

body.light {
    --primary: #3b82f6;
    --primary-hover: #2563eb;
    --accent: #f59e0b;
    --bg-primary: #ffffff;
    --bg-secondary: #f1f5f9;
    --bg-tertiary: #e2e8f0;
    --bg-glass: rgba(255, 255, 255, 0.7);
    --bg-glass-hover: rgba(255, 255, 255, 0.9);
    --bg-glass-light: rgba(0, 0, 0, 0.05);
    --text-primary: #1e293b;
    --text-secondary: #334155;
    --text-muted: #64748b;
    --border: rgba(0, 0, 0, 0.1);
    --border-light: rgba(0, 0, 0, 0.15);
    --border-glass: rgba(0, 0, 0, 0.1);
    --red-accent: #ef4444;
    --gradient: linear-gradient(135deg, #3b82f6 0%, #1e3a8a 100%);
    --gradient-accent: linear-gradient(135deg, #f59e0b 0%, #b45309 100%);
    --shadow: 0 4px 16px rgba(0, 0, 0, 0.05);
    --shadow-lg: 0 8px 32px rgba(0, 0, 0, 0.1);
    --glow: 0 0 20px rgba(59, 130, 246, 0.1);
}

    :root {
        --primary: #3b82f6;
        --primary-hover: #2563eb;
        --accent: #f59e0b;
        --bg-primary: #00030a;
        --bg-secondary: rgba(8, 15, 27, 0.788);
        --bg-tertiary: rgba(13, 19, 27, 0.9);
        --bg-glass: rgba(30, 41, 59, 0.6);
        --bg-glass-hover: rgba(30, 41, 59, 0.8);
        --bg-glass-light: rgba(255, 255, 255, 0.05);
        --text-primary: #ffffff;
        --text-secondary: #e2e8f0;
        --text-muted: #94a3b8;
        --border: rgba(255, 255, 255, 0.1);
        --border-light: rgba(255, 255, 255, 0.15);
        --border-glass: rgba(255, 255, 255, 0.1);
        --red-accent: #ef4444;
        --gradient: linear-gradient(135deg, rgba(59, 130, 246, 0.8) 0%, rgba(30, 64, 175, 0.8) 100%);
        --gradient-accent: linear-gradient(135deg, rgba(245, 158, 11, 0.8) 0%, rgba(217, 119, 6, 0.8) 100%);
        --shadow: 0 8px 32px 0 rgba(0, 0, 0, 0.2);
        --shadow-lg: 0 16px 48px 0 rgba(0, 0, 0, 0.3);
        --glow: 0 0 20px rgba(59, 130, 246, 0.2);
    }

    body {
        font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
        line-height: 1.6;
        color: var(--text-primary);
        background: var(--bg-primary);
        min-height: 100vh;
        display: flex;
        flex-direction: column;
        /* Subtle background pattern */
        background-image:
            radial-gradient(at 47% 33%, rgba(59, 130, 246, 0.1) 0, transparent 59%),
            radial-gradient(at 82% 65%, rgba(245, 158, 11, 0.08) 0, transparent 55%);
        padding-top: 60px; /* Add padding for fixed header */
        padding-bottom: 40px; /* Add padding for fixed footer */
    }

    .header-about {
        top: 0;
        position: fixed;
        width: -webkit-fill-available;
        padding: 1rem 2rem;
        background: rgba(0, 0, 0, 0.7);
        border-bottom: 1px solid var(--border);
        backdrop-filter: blur(12px);
        -webkit-backdrop-filter: blur(12px);
    }

    .back-link {
        display: inline-flex;
        align-items: center;
        gap: 0.5rem;
        color: var(--primary);
        text-decoration: none;
        font-weight: 500;
        padding: 0.5rem 1rem;
        border-radius: 0.5rem;
        transition: all 0.2s ease;
        background: rgba(59, 130, 246, 0.1);
        border: 1px solid rgba(59, 130, 246, 0.2);
        backdrop-filter: blur(10px);
        -webkit-backdrop-filter: blur(10px);
    }

    .back-link:hover {
        background: rgba(59, 130, 246, 0.2);
        border-color: var(--primary);
        box-shadow: var(--glow);
        transform: translateX(-2px);
    }

    .back-link::before {
        content: '←';
        font-size: 1.2em;
    }

    main {
        flex: 1;
        max-width: 900px;
        margin: 0 auto;
        padding: 3rem 2rem;
        width: 100%;
    }

    .hero {
        text-align: center;
        margin-bottom: 4rem;
        position: relative;
    }

    .hero::before {
        content: '';
        position: absolute;
        top: -2rem;
        left: 50%;
        transform: translateX(-50%);
        width: 100px;
        height: 4px;
        background: var(--gradient);
        border-radius: 2px;
        opacity: 0.8;
    }

    /* Logo styles */
    .logo-wrap {
        width: 120px;
        height: 120px;
        margin: 0 auto 1.5rem;
        position: relative;
    }

    .logo-ring {
        position: absolute;
        inset: -8px;
        border-radius: 50%;
        background: radial-gradient(60% 60% at 50% 50%, rgba(59, 130, 246, 0.4) 0%, rgba(59, 130, 246, 0.15) 60%, transparent 70%);
        filter: blur(6px);
        opacity: 0.9;
        pointer-events: none;
    }

    .logo-img {
        width: 100%;
        height: 100%;
        border-radius: 24px;
        background: var(--bg-glass);
        display: flex;
        align-items: center;
        justify-content: center;
        border: 1px solid var(--border);
        box-shadow: var(--shadow);
        backdrop-filter: blur(10px);
        -webkit-backdrop-filter: blur(10px);
        overflow: hidden;
    }

    .logo-img img {
        width: 60%;
        height: 60%;
        object-fit: contain;
    }

    .hero h1 {
        font-size: clamp(2.5rem, 5vw, 3.5rem);
        font-weight: 700;
        margin-bottom: 1rem;
        background: var(--gradient);
        -webkit-background-clip: text;
        -webkit-text-fill-color: transparent;
        background-clip: text;
        line-height: 1.2;
    }

    .hero-subtitle {
        font-size: 1.25rem;
        color: var(--text-muted);
        max-width: 600px;
        margin: 0 auto 2rem;
        font-weight: 400;
    }

    .features-grid {
        display: grid;
        grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
        gap: 2rem;
        margin: 4rem 0;
    }

    .feature-card {
        background: var(--bg-glass);
        padding: 2rem;
        border-radius: 1rem;
        box-shadow: var(--shadow);
        border: 1px solid var(--border);
        transition: all 0.3s ease;
        position: relative;
        overflow: hidden;
        backdrop-filter: blur(10px);
        -webkit-backdrop-filter: blur(10px);
    }

    .feature-card:hover {
        transform: translateY(-4px);
        box-shadow: var(--shadow-lg);
        border-color: var(--border-light);
        background: var(--bg-glass-hover);
    }

    .feature-card::before {
        content: '';
        position: absolute;
        top: 0;
        left: 0;
        right: 0;
        height: 3px;
        background: var(--gradient);
    }

    .feature-icon {
        width: 3rem;
        height: 3rem;
        background: var(--gradient);
        border-radius: 0.75rem;
        display: flex;
        align-items: center;
        justify-content: center;
        margin-bottom: 1rem;
        font-size: 1.5rem;
        backdrop-filter: blur(10px);
        -webkit-backdrop-filter: blur(10px);
    }

    .feature-title {
        font-size: 1.25rem;
        font-weight: 600;
        margin-bottom: 0.5rem;
        color: var(--text-primary);
    }

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

    .about-section {
        background: var(--bg-glass);
        padding: 3rem;
        border-radius: 1rem;
        box-shadow: var(--shadow);
        border: 1px solid var(--border);
        margin: 3rem 0;
        text-align: center;
        backdrop-filter: blur(10px);
        -webkit-backdrop-filter: blur(10px);
    }

    .about-section h2 {
        font-size: 2rem;
        font-weight: 600;
        margin-bottom: 1rem;
        color: var(--text-primary);
    }

    .about-section p {
        font-size: 1.1rem;
        color: var(--text-secondary);
        margin-bottom: 2rem;
    }

    .tech-stack {
        display: flex;
        justify-content: center;
        gap: 2rem;
        flex-wrap: wrap;
        margin-top: 2rem;
    }

    .tech-item {
        display: flex;
        align-items: center;
        gap: 0.5rem;
        padding: 0.75rem 1.5rem;
        background: rgba(59, 130, 246, 0.1);
        border-radius: 2rem;
        font-weight: 500;
        color: var(--primary);
        border: 1px solid rgba(59, 130, 246, 0.2);
        transition: all 0.2s ease;
        backdrop-filter: blur(10px);
        -webkit-backdrop-filter: blur(10px);
    }

    .tech-item:hover {
        background: rgba(59, 130, 246, 0.15);
        border-color: var(--primary);
        box-shadow: var(--glow);
    }

    .cta-section {
        text-align: center;
        margin: 4rem 0;
    }

    .cta-button {
        display: inline-flex;
        align-items: center;
        gap: 0.5rem;
        background: var(--gradient);
        color: white;
        padding: 1rem 2rem;
        border-radius: 0.75rem;
        text-decoration: none;
        font-weight: 600;
        font-size: 1.1rem;
        transition: all 0.3s ease;
        box-shadow: var(--shadow);
        border: 1px solid rgba(255, 255, 255, 0.1);
        backdrop-filter: blur(10px);
        -webkit-backdrop-filter: blur(10px);
    }

    .cta-button:hover {
        transform: translateY(-2px);
        box-shadow: var(--shadow-lg), var(--glow);
        background: var(--gradient);
    }

    .copy-btn {
    background: var(--primary) !important;
    color: rgb(2, 0, 0);
    padding: 0.5rem 1rem;
    border-radius: 0.5rem;
    border: none !important;
    cursor: pointer;
    transition: all 0.2s ease;
}

.copy-btn:hover {
    background: var(--primary-hover);
}

.contact-section {
    background: var(--bg-glass);
    padding: 3rem;
    border-radius: 1rem;
    box-shadow: var(--shadow);
    border: 1px solid var(--border);
    margin: 3rem 0;
    text-align: center;
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
}

.contact-section h2 {
    font-size: 2rem;
    font-weight: 600;
    margin-bottom: 1rem;
    color: var(--text-primary);
}

#contactForm {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

#contactForm input,
#contactForm textarea {
    width: 100%;
    padding: 1rem;
    border-radius: 0.5rem;
    border: 1px solid var(--border);
    background: var(--bg-glass-light);
    color: var(--text-primary);
    font-family: inherit;
}

#contactForm input::placeholder,
#contactForm textarea::placeholder {
    color: var(--text-muted);
}

.submit-btn {
    background: var(--primary) !important;
    color: white;
    padding: 1rem;
    border-radius: 0.5rem;
    border: none !important;
    cursor: pointer;
    transition: all 0.2s ease;
}

.submit-btn:hover {
    background: var(--primary-hover);
}

.faq-section {
    background: var(--bg-glass);
    padding: 3rem;
    border-radius: 1rem;
    box-shadow: var(--shadow);
    border: 1px solid var(--border);
    margin: 3rem 0;
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
}

.faq-section h2 {
    font-size: 2rem;
    font-weight: 600;
    margin-bottom: 2rem;
    color: var(--text-primary);
    text-align: center;
}

.faq-item {
    border-bottom: 1px solid var(--border);
    padding: 1.5rem 0;
}

.faq-question {
    display: flex;
    justify-content: space-between;
    align-items: center;
    cursor: pointer;
}

.faq-question h3 {
    font-size: 1.25rem;
    font-weight: 500;
    color: var(--text-primary);
}

.faq-toggle {
    font-size: 1.5rem;
    font-weight: 300;
    color: var(--text-muted);
    transition: transform 0.3s ease;
}

.faq-answer {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.3s ease;
}

.faq-answer p {
    color: var(--text-secondary);
    padding-top: 1rem;
}

.faq-item.active .faq-answer {
    max-height: 100px; /* Adjust as needed */
}

.faq-item.active .faq-toggle {
    transform: rotate(45deg);
}

.share-section {
    background: var(--bg-glass);
    padding: 3rem;
    border-radius: 1rem;
    box-shadow: var(--shadow);
    border: 1px solid var(--border);
    margin: 3rem 0;
    text-align: center;
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
}

.share-section h2 {
    font-size: 2rem;
    font-weight: 600;
    margin-bottom: 2rem;
    color: var(--text-primary);
}

.share-buttons {
    display: flex;
    justify-content: center;
    gap: 1.5rem;
}

.share-btn {
    width: 50px;
    height: 50px;
    border-radius: 50%;
    display: flex;
    justify-content: center;
    align-items: center;
    color: white;
    text-decoration: none;
    font-size: 1.5rem;
    transition: all 0.3s ease;
}

.share-btn.twitter {
    background: #1DA1F2;
}

.share-btn.facebook {
    background: #1877F2;
}

.share-btn.linkedin {
    background: #0A66C2;
}

.share-btn:hover {
    transform: translateY(-5px);
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.2);
}

.back-to-top {
    position: fixed;
    bottom: 20px;
    right: 20px;
    width: 50px;
    height: 50px;
    border-radius: 50%;
    background: var(--primary);
    color: white;
    display: flex;
    justify-content: center;
    align-items: center;
    text-decoration: none;
    font-size: 1.5rem;
    transition: all 0.3s ease;
    opacity: 0;
    pointer-events: none;
}

.back-to-top.show {
    opacity: 1;
    pointer-events: auto;
}

.back-to-top:hover {
    background: var(--primary-hover);
    transform: translateY(-5px);
}

    footer {
        width: -webkit-fill-available;
        background: rgba(15, 23, 42, 0.7);
        border-top: 1px solid var(--border);
        padding: 2rem;
        text-align: center;
        color: var(--text-muted);
        margin-top: auto;
        display: flex;
        justify-content: center;
        backdrop-filter: blur(12px);
        -webkit-backdrop-filter: blur(12px);
        position: fixed;
        bottom: 0;
    }

    @media (max-width: 768px) {
        header {
            padding: 1rem;
        }

        main {
            padding: 2rem 1rem;
        }

        .features-grid {
            grid-template-columns: 1fr;
            gap: 1.5rem;
        }

        .about-section {
            padding: 2rem 1.5rem;
        }

        .tech-stack {
            gap: 1rem;
        }

        .tech-item {
            padding: 0.5rem 1rem;
            font-size: 0.9rem;
        }

        .logo-wrap {
            width: 100px;
            height: 100px;
        }
    }

    /* Animations */
    @keyframes fadeInUp {
        from {
            opacity: 0;
            transform: translateY(30px);
        }

        to {
            opacity: 1;
            transform: translateY(0);
        }
    }

    .hero,
    .features-grid,
    .about-section {
        animation: fadeInUp 0.6s ease-out;
    }

    .feature-card:nth-child(1) {
        animation-delay: 0.1s;
    }

    .feature-card:nth-child(2) {
        animation-delay: 0.2s;
    }

    .feature-card:nth-child(3) {
        animation-delay: 0.3s;
    }

    .feature-card:nth-child(4) {
        animation-delay: 0.4s;
    }

    .feature-card:nth-child(5) {
        animation-delay: 0.5s;
    }

    /* Shortcuts Section */
    .shortcuts-section {
        background: var(--bg-glass);
        padding: 3rem;
        border-radius: 1rem;
        box-shadow: var(--shadow);
        border: 1px solid var(--border);
        margin: 3rem 0;
        backdrop-filter: blur(10px);
        -webkit-backdrop-filter: blur(10px);
    }

    .shortcuts-section h2 {
        font-size: 2rem;
        font-weight: 600;
        margin-bottom: 1rem;
        color: var(--text-primary);
        text-align: center;
    }

    .shortcuts-section p {
        text-align: center;
        color: var(--text-secondary);
        margin-bottom: 2rem;
        font-size: 1.1rem;
    }

    .shortcuts-grid {
        display: grid;
        grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
        gap: 2rem;
    }

    .shortcut-category {
        background: var(--bg-glass-light);
        padding: 1.5rem;
        border-radius: 0.75rem;
        border: 1px solid var(--border);
    }

    .shortcut-category h3 {
        font-size: 1.25rem;
        font-weight: 600;
        margin-bottom: 1rem;
        color: var(--text-primary);
        text-align: center;
    }

    .shortcut-item {
        display: flex;
        justify-content: space-between;
        align-items: center;
        padding: 0.75rem 0;
        border-bottom: 1px solid var(--border);
    }

    .shortcut-item:last-child {
        border-bottom: none;
    }

    .shortcut-key {
        background: var(--primary);
        color: white;
        padding: 0.25rem 0.75rem;
        border-radius: 0.5rem;
        font-family: 'Courier New', monospace;
        font-weight: 600;
        font-size: 0.9rem;
    }

    .shortcut-desc {
        color: var(--text-secondary);
        font-weight: 500;
    }

    /* Game Section */
    .game-section {
        background: var(--bg-glass);
        padding: 3rem;
        border-radius: 1rem;
        box-shadow: var(--shadow);
        border: 1px solid var(--border);
        margin: 3rem 0;
        backdrop-filter: blur(10px);
        -webkit-backdrop-filter: blur(10px);
    }

    .game-section h2 {
        font-size: 2rem;
        font-weight: 600;
        margin-bottom: 1rem;
        color: var(--text-primary);
        text-align: center;
    }

    .game-section p {
        text-align: center;
        color: var(--text-secondary);
        margin-bottom: 2rem;
        font-size: 1.1rem;
    }

    .game-features {
        display: grid;
        grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
        gap: 1.5rem;
    }

    .game-feature {
        background: var(--bg-glass-light);
        padding: 1.5rem;
        border-radius: 0.75rem;
        border: 1px solid var(--border);
        text-align: center;
        transition: all 0.3s ease;
    }

    .game-feature:hover {
        transform: translateY(-2px);
        box-shadow: var(--shadow);
    }

    .game-icon {
        font-size: 2rem;
        margin-bottom: 1rem;
        display: block;
    }

    .game-feature h4 {
        font-size: 1.1rem;
        font-weight: 600;
        margin-bottom: 0.5rem;
        color: var(--text-primary);
    }

    .game-feature p {
        color: var(--text-secondary);
        font-size: 0.95rem;
        margin: 0;
    }

    /* Auth Section */
    .auth-section {
        background: var(--bg-glass);
        padding: 3rem;
        border-radius: 1rem;
        box-shadow: var(--shadow);
        border: 1px solid var(--border);
        margin: 3rem 0;
        backdrop-filter: blur(10px);
        -webkit-backdrop-filter: blur(10px);
    }

    .auth-section h2 {
        font-size: 2rem;
        font-weight: 600;
        margin-bottom: 1rem;
        color: var(--text-primary);
        text-align: center;
    }

    .auth-section p {
        text-align: center;
        color: var(--text-secondary);
        margin-bottom: 2rem;
        font-size: 1.1rem;
    }

    .auth-features {
        display: grid;
        grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
        gap: 1.5rem;
    }

    .auth-feature {
        background: var(--bg-glass-light);
        padding: 1.5rem;
        border-radius: 0.75rem;
        border: 1px solid var(--border);
        text-align: center;
        transition: all 0.3s ease;
    }

    .auth-feature:hover {
        transform: translateY(-2px);
        box-shadow: var(--shadow);
    }

    .auth-icon {
        font-size: 2rem;
        margin-bottom: 1rem;
        display: block;
    }

    .auth-feature h4 {
        font-size: 1.1rem;
        font-weight: 600;
        margin-bottom: 0.5rem;
        color: var(--text-primary);
    }

    .auth-feature p {
        color: var(--text-secondary);
        font-size: 0.95rem;
        margin: 0;
    }