/* Reset & Base */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: #ffffff;
    height: 100vh;
    overflow: hidden;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

/* Navigation */
.nav {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 20px 40px;
    background: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(20px);
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
    z-index: 100;
}

.nav-brand {
    display: flex;
    align-items: center;
    gap: 12px;
    font-weight: 700;
    font-size: 1.4rem;
}

.brand-icon {
    font-size: 1.8rem;
}

.nav-link {
    color: rgba(255, 255, 255, 0.9);
    text-decoration: none;
    font-weight: 500;
    padding: 10px 20px;
    border-radius: 25px;
    border: 1px solid rgba(255, 255, 255, 0.2);
    transition: all 0.3s ease;
}

.nav-link:hover {
    background: rgba(255, 255, 255, 0.1);
    border-color: rgba(255, 255, 255, 0.4);
}

/* Hero Section */
.hero {
    height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    padding: 0 40px;
}

.hero-content {
    max-width: 800px;
}

.hero-title {
    font-size: 5rem;
    font-weight: 900;
    line-height: 1.1;
    margin-bottom: 32px;
}

.gradient-text {
    background: linear-gradient(135deg, #ffd700 0%, #ff6b35 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-description {
    font-size: 1.5rem;
    line-height: 1.6;
    color: rgba(255, 255, 255, 0.9);
    margin-bottom: 48px;
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

.download-btn {
    display: inline-flex;
    align-items: center;
    gap: 16px;
    background: linear-gradient(135deg, #10b981 0%, #059669 100%);
    color: white;
    text-decoration: none;
    padding: 20px 40px;
    border-radius: 50px;
    font-weight: 600;
    font-size: 1.2rem;
    box-shadow: 0 10px 30px rgba(16, 185, 129, 0.4);
    transition: all 0.3s ease;
}

.download-btn:hover {
    transform: translateY(-3px);
    box-shadow: 0 15px 40px rgba(16, 185, 129, 0.5);
}

.download-btn i {
    font-size: 1.4rem;
}

/* Responsive Design */
@media (max-width: 768px) {
    .nav {
        padding: 15px 20px;
    }
    
    .nav-brand {
        font-size: 1.2rem;
    }
    
    .hero {
        padding: 0 20px;
    }
    
    .hero-title {
        font-size: 3.5rem;
    }
    
    .hero-description {
        font-size: 1.2rem;
        margin-bottom: 40px;
    }
    
    .download-btn {
        padding: 18px 36px;
        font-size: 1.1rem;
    }
}

@media (max-width: 480px) {
    .nav {
        padding: 12px 16px;
    }
    
    .nav-brand {
        font-size: 1.1rem;
        gap: 8px;
    }
    
    .brand-icon {
        font-size: 1.5rem;
    }
    
    .hero {
        padding: 0 16px;
    }
    
    .hero-title {
        font-size: 2.5rem;
    }
    
    .hero-description {
        font-size: 1.1rem;
        margin-bottom: 32px;
    }
    
    .download-btn {
        padding: 16px 32px;
        font-size: 1rem;
        gap: 12px;
    }
}