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

:root {
    --bg-primary: #0A0A0A;
    --bg-secondary: #111111;
    --bg-card: #1A1A1A;
    --text-primary: #FFFFFF;
    --text-secondary: #AAAAAA;
    --text-muted: #666666;
    --accent: #00C853;
    --accent-hover: #00E676;
    --border: #222222;
    --gradient-start: #00C853;
    --gradient-mid: #FFD600;
    --gradient-end: #FF1744;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, sans-serif;
    background: var(--bg-primary);
    color: var(--text-primary);
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
}

.container {
    max-width: 1100px;
    margin: 0 auto;
    padding: 0 24px;
}

/* Hero Section */
.hero {
    padding: 80px 0 60px;
    background: linear-gradient(180deg, #0F1A0F 0%, var(--bg-primary) 100%);
}

.hero-content {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 60px;
}

.hero-text {
    flex: 1;
}

.app-badge {
    display: inline-block;
    padding: 6px 14px;
    background: rgba(0, 200, 83, 0.15);
    color: var(--accent);
    border-radius: 20px;
    font-size: 13px;
    font-weight: 600;
    margin-bottom: 20px;
    letter-spacing: 0.5px;
}

.hero h1 {
    font-size: 56px;
    font-weight: 800;
    line-height: 1.1;
    margin-bottom: 16px;
    background: linear-gradient(135deg, var(--text-primary) 0%, var(--text-secondary) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-subtitle {
    font-size: 22px;
    color: var(--text-secondary);
    margin-bottom: 16px;
    line-height: 1.4;
}

.hero-description {
    font-size: 16px;
    color: var(--text-muted);
    margin-bottom: 32px;
    line-height: 1.7;
    max-width: 500px;
}

.hero-image {
    flex-shrink: 0;
}

.hero-image img {
    width: 280px;
    height: 280px;
    border-radius: 56px;
    box-shadow: 0 20px 60px rgba(0, 200, 83, 0.15), 0 0 0 1px rgba(0, 200, 83, 0.1);
}

/* Download Button */
.btn-download {
    display: inline-flex;
    align-items: center;
    gap: 12px;
    padding: 14px 28px;
    background: var(--text-primary);
    color: var(--bg-primary);
    text-decoration: none;
    border-radius: 12px;
    font-size: 16px;
    transition: transform 0.2s, box-shadow 0.2s;
}

.btn-download:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 24px rgba(255, 255, 255, 0.15);
}

.btn-download small {
    display: block;
    font-size: 11px;
    letter-spacing: 1px;
    opacity: 0.7;
    font-weight: 400;
}

.btn-download strong {
    display: block;
    font-size: 18px;
    font-weight: 700;
}

/* Features Section */
.features {
    padding: 80px 0;
    background: var(--bg-secondary);
}

.features h2,
.use-cases h2 {
    text-align: center;
    font-size: 36px;
    font-weight: 700;
    margin-bottom: 48px;
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
}

.feature-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 16px;
    padding: 32px 24px;
    transition: border-color 0.2s, transform 0.2s;
}

.feature-card:hover {
    border-color: rgba(0, 200, 83, 0.3);
    transform: translateY(-4px);
}

.feature-icon {
    font-size: 36px;
    margin-bottom: 16px;
}

.feature-card h3 {
    font-size: 18px;
    font-weight: 600;
    margin-bottom: 8px;
}

.feature-card p {
    font-size: 14px;
    color: var(--text-secondary);
    line-height: 1.6;
}

/* Use Cases Section */
.use-cases {
    padding: 80px 0;
}

.cases-list {
    max-width: 700px;
    margin: 0 auto;
    display: flex;
    flex-direction: column;
    gap: 24px;
}

.case-item {
    display: flex;
    align-items: flex-start;
    gap: 20px;
    padding: 24px;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 16px;
    transition: border-color 0.2s;
}

.case-item:hover {
    border-color: rgba(0, 200, 83, 0.3);
}

.case-icon {
    font-size: 36px;
    flex-shrink: 0;
}

.case-item h3 {
    font-size: 18px;
    font-weight: 600;
    margin-bottom: 4px;
}

.case-item p {
    font-size: 14px;
    color: var(--text-secondary);
    line-height: 1.6;
}

/* Developer Section */
.developer {
    padding: 80px 0;
    background: var(--bg-secondary);
}

.developer-card {
    background: linear-gradient(135deg, #0F1A0F 0%, #1A1A1A 100%);
    border: 1px solid rgba(0, 200, 83, 0.2);
    border-radius: 20px;
    padding: 48px;
    text-align: center;
}

.developer-badge {
    display: inline-block;
    padding: 6px 14px;
    background: rgba(0, 200, 83, 0.15);
    color: var(--accent);
    border-radius: 20px;
    font-size: 13px;
    font-weight: 600;
    margin-bottom: 20px;
    letter-spacing: 0.5px;
}

.developer-card h2 {
    font-size: 32px;
    font-weight: 700;
    margin-bottom: 16px;
}

.developer-card p {
    font-size: 16px;
    color: var(--text-secondary);
    line-height: 1.7;
    max-width: 600px;
    margin: 0 auto 12px;
}

.developer-cta {
    color: var(--text-primary) !important;
    font-weight: 600;
    font-size: 18px !important;
    margin-top: 24px !important;
    margin-bottom: 20px !important;
}

.btn-koderz {
    display: inline-block;
    padding: 14px 32px;
    background: var(--accent);
    color: var(--bg-primary);
    text-decoration: none;
    border-radius: 12px;
    font-size: 16px;
    font-weight: 700;
    transition: background 0.2s, transform 0.2s;
}

.btn-koderz:hover {
    background: var(--accent-hover);
    transform: translateY(-2px);
}

/* Footer */
.footer {
    padding: 32px 0;
    border-top: 1px solid var(--border);
}

.footer-content {
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.footer p {
    font-size: 14px;
    color: var(--text-muted);
}

.footer a {
    color: var(--text-secondary);
    text-decoration: none;
    transition: color 0.2s;
}

.footer a:hover {
    color: var(--accent);
}

.footer-links {
    display: flex;
    gap: 24px;
}

.footer-links a {
    font-size: 14px;
    color: var(--text-muted);
}

/* Responsive */
@media (max-width: 768px) {
    .hero {
        padding: 48px 0 40px;
    }

    .hero-content {
        flex-direction: column-reverse;
        text-align: center;
        gap: 32px;
    }

    .hero h1 {
        font-size: 40px;
    }

    .hero-subtitle {
        font-size: 18px;
    }

    .hero-description {
        margin: 0 auto 32px;
    }

    .hero-image img {
        width: 180px;
        height: 180px;
        border-radius: 36px;
    }

    .features-grid {
        grid-template-columns: 1fr;
        gap: 16px;
    }

    .features h2,
    .use-cases h2 {
        font-size: 28px;
        margin-bottom: 32px;
    }

    .developer-card {
        padding: 32px 20px;
    }

    .developer-card h2 {
        font-size: 24px;
    }

    .footer-content {
        flex-direction: column;
        gap: 12px;
        text-align: center;
    }
}

@media (max-width: 480px) {
    .hero h1 {
        font-size: 32px;
    }

    .features-grid {
        gap: 12px;
    }

    .feature-card {
        padding: 24px 20px;
    }
}