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

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background: linear-gradient(rgba(0, 20, 40, 0.8), rgba(0, 30, 60, 0.9)), url('background.jpg');
    background-size: cover;
    background-position: center;
    background-attachment: fixed;
    color: #ffffff;
    line-height: 1.6;
    min-height: 100vh;
}

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

/* Header Styles */
.header {
    text-align: center;
    padding: 60px 0;
    background: rgba(0, 50, 100, 0.3);
    border-radius: 20px;
    margin-bottom: 40px;
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.1);
}

.title {
    font-size: 3.5rem;
    font-weight: 700;
    margin-bottom: 20px;
    background: linear-gradient(45deg, #00d4ff, #0099cc, #ffffff);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    text-shadow: 0 0 30px rgba(0, 212, 255, 0.5);
}

.subtitle {
    font-size: 1.2rem;
    color: #b3d9ff;
    margin-bottom: 0;
}

/* Intro Section */
.intro-section {
    margin-bottom: 50px;
}

.intro-card {
    background: rgba(0, 50, 100, 0.4);
    padding: 30px;
    border-radius: 15px;
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.1);
    text-align: center;
}

.intro-card h2 {
    color: #00d4ff;
    margin-bottom: 15px;
    font-size: 2rem;
}

.intro-card p {
    color: #e6f3ff;
    font-size: 1.1rem;
}

/* Quick Links */
.quick-links {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 20px;
    margin-bottom: 50px;
}

.link-card {
    background: rgba(0, 50, 100, 0.4);
    padding: 30px;
    border-radius: 15px;
    text-align: center;
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.1);
    transition: all 0.3s ease;
}

.link-card:hover {
    transform: translateY(-5px);
    background: rgba(0, 70, 140, 0.5);
    box-shadow: 0 10px 30px rgba(0, 212, 255, 0.3);
}

.link-card h3 {
    color: #00d4ff;
    margin-bottom: 10px;
    font-size: 1.5rem;
}

.link-card p {
    color: #b3d9ff;
    margin-bottom: 20px;
}

/* Download Section */
.download-section {
    margin-bottom: 50px;
}

.section-title {
    text-align: center;
    font-size: 2.5rem;
    color: #00d4ff;
    margin-bottom: 40px;
    text-shadow: 0 0 20px rgba(0, 212, 255, 0.5);
}

.download-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 25px;
}

.download-item {
    background: rgba(0, 50, 100, 0.4);
    padding: 30px;
    border-radius: 15px;
    text-align: center;
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.1);
    transition: all 0.3s ease;
}

.download-item:hover {
    transform: translateY(-8px);
    background: rgba(0, 70, 140, 0.5);
    box-shadow: 0 15px 40px rgba(0, 212, 255, 0.4);
}

.download-icon {
    font-size: 3rem;
    margin-bottom: 20px;
    filter: drop-shadow(0 0 10px rgba(0, 212, 255, 0.5));
}

.download-item h3 {
    color: #00d4ff;
    margin-bottom: 15px;
    font-size: 1.4rem;
}

.download-item p {
    color: #b3d9ff;
    margin-bottom: 25px;
    font-size: 0.95rem;
}

/* Button Styles */
.btn {
    display: inline-block;
    padding: 12px 30px;
    text-decoration: none;
    border-radius: 25px;
    font-weight: 600;
    transition: all 0.3s ease;
    border: none;
    cursor: pointer;
    font-size: 1rem;
}

.btn-primary {
    background: linear-gradient(45deg, #00d4ff, #0099cc);
    color: #ffffff;
    box-shadow: 0 4px 15px rgba(0, 212, 255, 0.3);
}

.btn-primary:hover {
    background: linear-gradient(45deg, #00b8e6, #007aa3);
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(0, 212, 255, 0.4);
}

.btn-download {
    background: linear-gradient(45deg, #ff6b35, #f7931e);
    color: #ffffff;
    box-shadow: 0 4px 15px rgba(255, 107, 53, 0.3);
}

.btn-download:hover {
    background: linear-gradient(45deg, #e55a2b, #de831a);
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(255, 107, 53, 0.4);
}

/* Contact Section */
.contact-section {
    margin-bottom: 50px;
}

.contact-content {
    display: grid;
    grid-template-columns: 1fr auto;
    gap: 40px;
    align-items: center;
    background: rgba(0, 50, 100, 0.4);
    padding: 40px;
    border-radius: 15px;
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.1);
}

.contact-info h3 {
    color: #00d4ff;
    margin-bottom: 15px;
    font-size: 1.5rem;
}

.contact-info p {
    color: #b3d9ff;
    margin-bottom: 25px;
}

.contact-methods {
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.contact-method {
    display: flex;
    align-items: center;
    gap: 10px;
}

.contact-label {
    color: #00d4ff;
    font-weight: 600;
    min-width: 60px;
}

.contact-value {
    color: #e6f3ff;
}

.qr-code {
    flex-shrink: 0;
}

.qr-placeholder {
    width: 150px;
    height: 150px;
    background: rgba(255, 255, 255, 0.1);
    border: 2px dashed rgba(0, 212, 255, 0.5);
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    backdrop-filter: blur(5px);
}

.qr-inner {
    text-align: center;
    color: #00d4ff;
}

.qr-inner p {
    font-weight: 600;
    margin-bottom: 5px;
}

.qr-inner small {
    color: #b3d9ff;
    font-size: 0.8rem;
}

/* Footer */
.footer {
    text-align: center;
    padding: 30px 0;
    color: #b3d9ff;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
}

/* Responsive Design */
@media (max-width: 768px) {
    .container {
        padding: 15px;
    }
    
    .title {
        font-size: 2.5rem;
    }
    
    .subtitle {
        font-size: 1rem;
    }
    
    .header {
        padding: 40px 20px;
    }
    
    .quick-links {
        grid-template-columns: 1fr;
    }
    
    .download-grid {
        grid-template-columns: 1fr;
    }
    
    .contact-content {
        grid-template-columns: 1fr;
        text-align: center;
        gap: 30px;
    }
    
    .contact-methods {
        align-items: center;
    }
    
    .contact-method {
        justify-content: center;
    }
}

@media (max-width: 480px) {
    .title {
        font-size: 2rem;
    }
    
    .section-title {
        font-size: 2rem;
    }
    
    .download-item,
    .link-card,
    .intro-card {
        padding: 20px;
    }
    
    .contact-content {
        padding: 25px;
    }
}

/* Animation Effects */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.download-item,
.link-card,
.intro-card {
    animation: fadeInUp 0.6s ease-out;
}

/* Scrollbar Styling */
::-webkit-scrollbar {
    width: 8px;
}

::-webkit-scrollbar-track {
    background: rgba(0, 50, 100, 0.3);
}

::-webkit-scrollbar-thumb {
    background: linear-gradient(45deg, #00d4ff, #0099cc);
    border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
    background: linear-gradient(45deg, #00b8e6, #007aa3);
}