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

:root {
    --bg-dark: #0d1117;
    --bg-darker: #010409;
    --bg-surface: #161b22;
    --cyan-primary: #00d9ff;
    --cyan-light: #26f0ff;
    --text-primary: #e6edf3;
    --text-secondary: #8b949e;
    --border: #30363d;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', sans-serif;
    background-color: var(--bg-dark);
    color: var(--text-primary);
    line-height: 1.6;
}

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

/* NAVBAR */
.navbar {
    background: var(--bg-surface);
    border-bottom: 1px solid var(--border);
    position: sticky;
    top: 0;
    z-index: 100;
}

.navbar .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem 20px;
}

.logo {
    font-size: 1.5rem;
    font-weight: bold;
    color: var(--cyan-primary);
    letter-spacing: -0.5px;
}

.nav-links {
    display: flex;
    list-style: none;
    gap: 2rem;
}

.nav-links a {
    color: var(--text-primary);
    text-decoration: none;
    transition: color 0.3s ease;
}

.nav-links a:hover {
    color: var(--cyan-primary);
}

/* HERO */
.hero {
    background: linear-gradient(135deg, var(--bg-darker) 0%, var(--bg-dark) 100%);
    padding: 120px 20px;
    text-align: center;
    position: relative;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: -50%;
    right: -50%;
    width: 200%;
    height: 200%;
    background: radial-gradient(circle, rgba(0, 217, 255, 0.05) 0%, transparent 70%);
    pointer-events: none;
}

.hero .container {
    position: relative;
    z-index: 1;
}

.hero h1 {
    font-size: clamp(2.5rem, 8vw, 4rem);
    margin-bottom: 1rem;
    color: var(--cyan-primary);
    font-weight: 700;
    letter-spacing: -1px;
}

.hero .subtitle {
    font-size: 1.25rem;
    color: var(--text-secondary);
    margin-bottom: 2rem;
    max-width: 500px;
    margin-left: auto;
    margin-right: auto;
}

.cta-button {
    display: inline-block;
    padding: 12px 32px;
    background: var(--cyan-primary);
    color: var(--bg-dark);
    text-decoration: none;
    border-radius: 6px;
    font-weight: 600;
    transition: all 0.3s ease;
    border: 2px solid var(--cyan-primary);
    cursor: pointer;
    font-size: 1rem;
}

.cta-button:hover {
    background: var(--cyan-light);
    border-color: var(--cyan-light);
    transform: translateY(-2px);
    box-shadow: 0 10px 25px rgba(0, 217, 255, 0.2);
}

/* ABOUT */
.about {
    padding: 80px 20px;
    background: var(--bg-dark);
}

.about h2 {
    text-align: center;
    font-size: 2.5rem;
    margin-bottom: 2rem;
    color: var(--text-primary);
}

.about .description {
    text-align: center;
    color: var(--text-secondary);
    max-width: 600px;
    margin: 0 auto 3rem;
    font-size: 1.1rem;
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
    margin-top: 3rem;
}

.feature-card {
    background: var(--bg-surface);
    padding: 2rem;
    border-radius: 8px;
    border: 1px solid var(--border);
    transition: all 0.3s ease;
}

.feature-card:hover {
    border-color: var(--cyan-primary);
    box-shadow: 0 0 20px rgba(0, 217, 255, 0.1);
    transform: translateY(-4px);
}

.feature-card .icon {
    font-size: 3rem;
    margin-bottom: 1rem;
}

.feature-card h3 {
    font-size: 1.3rem;
    margin-bottom: 0.5rem;
    color: var(--cyan-primary);
}

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

/* APPS */
.apps {
    padding: 80px 20px;
    background: var(--bg-surface);
    border-top: 1px solid var(--border);
}

.apps h2 {
    text-align: center;
    font-size: 2.5rem;
    margin-bottom: 3rem;
    color: var(--text-primary);
}

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

.app-card {
    background: var(--bg-dark);
    padding: 2rem;
    border-radius: 8px;
    border: 1px solid var(--border);
    transition: all 0.3s ease;
}

.app-card:hover {
    border-color: var(--cyan-primary);
    box-shadow: 0 0 15px rgba(0, 217, 255, 0.1);
}

.app-card h4 {
    font-size: 1.2rem;
    color: var(--cyan-primary);
    margin-bottom: 0.5rem;
}

.app-card p {
    color: var(--text-secondary);
    margin-bottom: 1rem;
    font-size: 0.95rem;
}

.badge {
    display: inline-block;
    padding: 4px 12px;
    background: rgba(0, 217, 255, 0.1);
    color: var(--cyan-primary);
    border-radius: 20px;
    font-size: 0.85rem;
    font-weight: 500;
}

/* CTA SECTION */
.cta-section {
    padding: 100px 20px;
    background: linear-gradient(135deg, var(--bg-dark) 0%, rgba(0, 217, 255, 0.05) 100%);
    text-align: center;
    border-top: 1px solid var(--border);
}

.cta-section h2 {
    font-size: 2.5rem;
    margin-bottom: 1rem;
    color: var(--text-primary);
}

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

.cta-button-large {
    padding: 16px 48px;
    background: var(--cyan-primary);
    color: var(--bg-dark);
    border: 2px solid var(--cyan-primary);
    border-radius: 8px;
    font-weight: 600;
    font-size: 1.1rem;
    cursor: pointer;
    transition: all 0.3s ease;
}

.cta-button-large:hover {
    background: var(--cyan-light);
    border-color: var(--cyan-light);
    transform: translateY(-3px);
    box-shadow: 0 15px 35px rgba(0, 217, 255, 0.25);
}

/* FOOTER */
footer {
    background: var(--bg-darker);
    border-top: 1px solid var(--border);
    padding: 3rem 20px;
    text-align: center;
    color: var(--text-secondary);
}

footer p {
    margin: 0.5rem 0;
}

.footer-small {
    font-size: 0.9rem;
    margin-top: 1rem;
}

/* RESPONSIVE */
@media (max-width: 768px) {
    .nav-links {
        gap: 1rem;
    }

    .hero h1 {
        font-size: 2rem;
    }

    .hero .subtitle {
        font-size: 1rem;
    }

    .about h2,
    .apps h2,
    .cta-section h2 {
        font-size: 1.8rem;
    }

    .features-grid,
    .apps-grid {
        gap: 1.5rem;
    }

    .feature-card,
    .app-card {
        padding: 1.5rem;
    }
}

@media (max-width: 480px) {
    .navbar .container {
        flex-direction: column;
        gap: 1rem;
    }

    .nav-links {
        gap: 0.5rem;
        font-size: 0.9rem;
    }

    .hero {
        padding: 60px 20px;
    }

    .hero h1 {
        font-size: 1.5rem;
    }

    .cta-button {
        padding: 10px 24px;
        font-size: 0.9rem;
    }
}