body {
    font-family: 'Roboto', sans-serif;
    background-color: #000000; /* Pure Black */
    color: #e0e0e0; /* Light Gray Text */
    margin: 0;
    padding: 20px;
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 100vh;
}

.container {
    max-width: 800px;
    width: 100%;
    background: #000000; /* Pure Black */
    padding: 40px;
    border-radius: 12px;
    border: 1px solid #333; /* Subtle border */
    box-shadow: none;
    text-align: center;
}

header {
    margin-bottom: 40px;
}

.logo {
    max-width: 250px;
    margin-bottom: 10px;
}

header h2 {
    font-size: 1.6em;
    font-weight: 300;
    color: #bbbbbb; /* Lighter Gray */
    margin-top: 0;
}

.app-name {
    font-weight: 700;
    color: #4dabf7; /* Light Blue */
}

main {
    margin-top: 40px;
}

section {
    margin-bottom: 30px;
}

section h3 {
    font-size: 1.8em;
    color: #ffffff; /* White */
    border-bottom: 2px solid #4dabf7; /* Light Blue */
    padding-bottom: 10px;
    margin-bottom: 20px;
    display: inline-block;
}

.about p, .contact p {
    font-size: 1.1em;
    line-height: 1.6;
    color: #cccccc; /* Light Gray */
}

.cta p {
    font-size: 1.2em;
    margin-bottom: 20px;
}

.google-play-button img {
    width: 200px;
    transition: transform 0.2s ease-in-out;
}

.google-play-button:hover img {
    transform: scale(1.05);
}

.contact a {
    font-size: 1.2em;
    color: #4dabf7; /* Light Blue */
    text-decoration: none;
    font-weight: 700;
}

.contact a:hover {
    text-decoration: underline;
}

footer {
    margin-top: 40px;
    font-size: 0.9em;
    color: #888; /* Medium Gray */
}

footer a {
    color: #bbbbbb; /* Lighter Gray */
    text-decoration: none;
}

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

/* App Hero Section */
.app-hero {
    margin: 50px 0;
    padding: 40px 0;
}

.app-icon {
    width: 120px;
    height: 120px;
    margin: 0 auto 20px;
    display: block;
    border-radius: 20px;
}

.app-title {
    font-size: 2.5em;
    color: #ffffff;
    margin: 20px 0 10px;
    font-weight: 700;
}

.app-tagline {
    font-size: 1.3em;
    color: #bbbbbb;
    margin-bottom: 30px;
    line-height: 1.6;
}

.cta-buttons {
    display: flex;
    gap: 20px;
    justify-content: center;
    align-items: center;
    flex-wrap: wrap;
}

.youtube-button {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    background: #4dabf7;
    color: #000000;
    padding: 15px 30px;
    border-radius: 8px;
    text-decoration: none;
    font-weight: 700;
    font-size: 1.1em;
    transition: all 0.3s ease;
}

.youtube-button:hover {
    background: #339af0;
    transform: translateY(-2px);
}

.youtube-icon {
    font-size: 1.2em;
}

/* Video Section */
.video-section {
    margin: 50px 0;
}

.video-container {
    position: relative;
    padding-bottom: 56.25%; /* 16:9 aspect ratio */
    height: 0;
    overflow: hidden;
    max-width: 100%;
    background: #1a1a1a;
    border-radius: 12px;
    margin-top: 20px;
}

.video-container iframe {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    border-radius: 12px;
}

/* Features Grid */
.features {
    margin: 60px 0;
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
    margin-top: 30px;
}

.feature-item {
    padding: 20px;
    background: #0a0a0a;
    border: 1px solid #333;
    border-radius: 12px;
    transition: all 0.3s ease;
}

.feature-item:hover {
    border-color: #4dabf7;
    transform: translateY(-5px);
}

.feature-icon {
    font-size: 3em;
    margin-bottom: 15px;
}

.feature-item h4 {
    font-size: 1.3em;
    color: #ffffff;
    margin: 10px 0;
}

.feature-item p {
    color: #bbbbbb;
    line-height: 1.5;
    font-size: 1em;
}

/* Screenshots Gallery */
.screenshots {
    margin: 60px 0;
}

.screenshots-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 20px;
    margin-top: 30px;
}

.screenshot-item {
    text-align: center;
}

.screenshot-item img {
    width: 100%;
    max-width: 250px;
    height: auto;
    border-radius: 12px;
    border: 1px solid #333;
    transition: all 0.3s ease;
}

.screenshot-item img:hover {
    border-color: #4dabf7;
    transform: scale(1.05);
}

.screenshot-caption {
    margin-top: 10px;
    font-size: 0.95em;
    color: #999;
}

/* Pricing Section */
.pricing {
    margin: 60px 0;
}

.pricing-columns {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
    margin-top: 30px;
}

.pricing-column {
    padding: 30px;
    border-radius: 12px;
    border: 2px solid #333;
    background: #0a0a0a;
}

.pricing-column.free {
    border-color: #4dabf7;
}

.pricing-column.premium {
    border-color: #ffd43b;
    background: linear-gradient(135deg, #0a0a0a 0%, #1a1510 100%);
}

.pricing-column h4 {
    font-size: 1.6em;
    color: #ffffff;
    margin-bottom: 20px;
}

.pricing-column ul {
    list-style: none;
    padding: 0;
    text-align: left;
}

.pricing-column li {
    padding: 10px 0;
    color: #cccccc;
    border-bottom: 1px solid #222;
    font-size: 1em;
    line-height: 1.5;
}

.pricing-column li:last-child {
    border-bottom: none;
}

.pricing-column li::before {
    content: "✓ ";
    color: #4dabf7;
    font-weight: bold;
    margin-right: 8px;
}

.pricing-column.premium li::before {
    color: #ffd43b;
}

/* Final CTA */
.final-cta {
    margin: 60px 0;
    padding: 40px;
    background: linear-gradient(135deg, #0a0a0a 0%, #0d1a2e 100%);
    border-radius: 12px;
    border: 2px solid #4dabf7;
}

.final-cta h3 {
    font-size: 2em;
    margin-bottom: 15px;
}

.final-cta p {
    font-size: 1.2em;
    color: #cccccc;
    margin-bottom: 25px;
}

.google-play-button.large img {
    width: 240px;
}

/* Responsive Design */
@media (max-width: 768px) {
    .app-title {
        font-size: 2em;
    }
    
    .app-tagline {
        font-size: 1.1em;
    }
    
    .cta-buttons {
        flex-direction: column;
    }
    
    .features-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .screenshots-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .pricing-columns {
        grid-template-columns: 1fr;
    }
    
    .final-cta {
        padding: 30px 20px;
    }
}

@media (max-width: 480px) {
    .features-grid {
        grid-template-columns: 1fr;
    }
    
    .screenshots-grid {
        grid-template-columns: 1fr;
    }
    
    .app-icon {
        width: 100px;
        height: 100px;
    }
}

/* FAQ Section */
.faq {
    margin: 60px 0;
}

.faq-container {
    max-width: 700px;
    margin: 0 auto;
    text-align: left;
}

.faq-item {
    margin-bottom: 15px;
    border: 1px solid #333;
    border-radius: 8px;
    background: #0a0a0a;
    overflow: hidden;
    transition: all 0.3s ease;
}

.faq-item:hover {
    border-color: #4dabf7;
}

.faq-question {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 20px;
    cursor: pointer;
    background: #111;
    transition: background 0.3s ease;
}

.faq-question:hover {
    background: #1a1a1a;
}

.faq-question h4 {
    margin: 0;
    font-size: 1.2em;
    color: #ffffff;
    font-weight: 600;
}

.faq-toggle {
    font-size: 1.5em;
    color: #4dabf7;
    font-weight: bold;
    transition: transform 0.3s ease;
    min-width: 20px;
    text-align: center;
}

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

.faq-answer {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.3s ease;
    background: #0a0a0a;
}

.faq-item.active .faq-answer {
    max-height: 200px;
}

.faq-answer p {
    padding: 0 20px 20px;
    margin: 0;
    color: #cccccc;
    line-height: 1.6;
    font-size: 1em;
}

.faq-answer a {
    color: #4dabf7;
    text-decoration: none;
}

.faq-answer a:hover {
    text-decoration: underline;
}

/* FAQ Responsive */
@media (max-width: 768px) {
    .faq-question {
        padding: 15px;
    }
    
    .faq-question h4 {
        font-size: 1.1em;
    }
    
    .faq-answer p {
        padding: 0 15px 15px;
        font-size: 0.95em;
    }
}