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

body {
    font-family: 'Roboto', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    background-color: #1a1a1a;
    background-image: 
        repeating-linear-gradient(
            45deg,
            transparent,
            transparent 2px,
            rgba(0, 0, 0, 0.4) 2px,
            rgba(0, 0, 0, 0.4) 4px
        ),
        repeating-linear-gradient(
            -45deg,
            transparent,
            transparent 2px,
            rgba(0, 0, 0, 0.4) 2px,
            rgba(0, 0, 0, 0.4) 4px
        ),
        linear-gradient(
            180deg,
            #2a2a2a 0%,
            #1a1a1a 100%
        );
    color: #ffffff;
    min-height: 100vh;
    padding: 20px;
}

.container {
    max-width: 800px;
    margin: 0 auto;
    padding: 0 20px;
}

header {
    text-align: center;
    margin-bottom: 40px;
    padding: 20px 0;
}

header h1 {
    font-size: 48px;
    font-weight: 300;
    color: #ffffff;
    margin-bottom: 10px;
}

.tagline {
    font-size: 20px;
    color: #9cafb8;
    font-weight: 300;
}

main {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

/* Content Cards */
.content-card {
    background: linear-gradient(180deg, #2a2a2a 0%, #1a1a1a 100%);
    border-radius: 12px;
    padding: 0;
    margin: 10px 0;
    overflow: hidden;
    border: 2px solid #000000;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.5);
}

.content-card h2 {
    font-size: 24px;
    font-weight: 400;
    color: #5eb8e5;
    margin-bottom: 0;
    padding: 20px 24px 12px 24px;
    background: transparent;
    text-shadow: 0 0 8px rgba(94, 184, 229, 0.5);
}

.content-card > p,
.content-card > .device-grid {
    padding: 0 24px 16px 24px;
}

.content-card p {
    font-size: 17px;
    line-height: 1.6;
    color: #cccccc;
    margin-bottom: 8px;
}

.content-card p:last-child {
    margin-bottom: 0;
}

.highlight {
    color: #5eb8e5;
    font-weight: 400;
}

/* Device Grid */
.device-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 12px;
    margin-top: 0;
}

.device-item {
    background: linear-gradient(180deg, #3a3a3a 0%, #2a2a2a 100%);
    padding: 16px;
    border-radius: 8px;
    text-align: center;
    font-size: 16px;
    color: #cccccc;
    border: 1px solid #1a1a1a;
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.5);
}

.model-number {
    display: block;
    font-size: 13px;
    color: #777777;
    margin-top: 4px;
}

/* Screenshots */
.screenshots {
    display: flex;
    gap: 16px;
    justify-content: center;
    flex-wrap: wrap;
    padding-bottom: 24px;
}

.screenshot {
    width: 200px;
    height: auto;
    border-radius: 8px;
    border: 1px solid #1a1a1a;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.5);
    display: block;
}

/* CTA Section */
.cta-section {
    display: flex;
    gap: 16px;
    justify-content: center;
    margin: 30px 0;
    flex-wrap: wrap;
}

/* Buttons */
.svoice-btn {
    background: linear-gradient(180deg, #5a5a5a 0%, #3d3d3d 100%);
    border: 1px solid #2a2a2a;
    border-radius: 8px;
    padding: 14px 32px;
    font-size: 18px;
    color: #ffffff;
    cursor: pointer;
    font-weight: 400;
    text-decoration: none;
    display: inline-block;
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.5);
}

.svoice-btn:hover {
    background: linear-gradient(180deg, #6a6a6a 0%, #4d4d4d 100%);
}

.svoice-btn:active {
    background: linear-gradient(180deg, #3d3d3d 0%, #2a2a2a 100%);
    box-shadow: inset 0 1px 3px rgba(0, 0, 0, 0.5);
}

.btn-large {
    font-size: 20px;
    padding: 16px 48px;
}

/* Footer */
footer {
    text-align: center;
    margin-top: 60px;
    padding: 30px 20px;
    color: #666666;
    font-size: 14px;
}

footer p {
    margin-bottom: 8px;
}

.footer-links {
    margin: 12px 0;
    color: #888888;
}

.footer-links a {
    color: #5eb8e5;
    text-decoration: none;
}

.footer-links a:hover {
    text-decoration: underline;
}

.footer-note {
    font-size: 12px;
    color: #555555;
    margin-top: 12px;
}

@media (max-width: 768px) {
    .container {
        padding: 0 15px;
    }
    
    header h1 {
        font-size: 36px;
    }
    
    .tagline {
        font-size: 18px;
    }
    
    .content-card {
        padding: 0;
    }
    
    .content-card h2 {
        font-size: 20px;
        padding: 16px 20px 12px 20px;
    }
    
    .content-card > p,
    .content-card > .device-grid {
        padding: 0 20px 16px 20px;
    }
    
    .device-grid {
        grid-template-columns: 1fr;
    }
    
    .cta-section {
        flex-direction: column;
    }
    
    .svoice-btn {
        width: 100%;
        text-align: center;
    }
}