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

:root {
    --bg-dark: #0a0a0a;
    --bg-charcoal: #1a1a1a;
    --text-primary: #ffffff;
    --text-secondary: #a0a0a0;
    --accent-blue: #00d4ff;
    --accent-glow: rgba(0, 212, 255, 0.3);
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    background-color: var(--bg-dark);
    color: var(--text-primary);
    line-height: 1.6;
    overflow-x: hidden;
}

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

/* Hero Section */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    position: relative;
    background: linear-gradient(135deg, var(--bg-dark) 0%, var(--bg-charcoal) 100%);
    overflow: hidden;
}

.hero-content {
    position: relative;
    z-index: 2;
    max-width: 800px;
}

.hero-title {
    font-size: clamp(2.5rem, 6vw, 5rem);
    font-weight: 900;
    line-height: 1.1;
    margin-bottom: 1.5rem;
    background: linear-gradient(135deg, var(--text-primary) 0%, var(--accent-blue) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-subtitle {
    font-size: clamp(1.1rem, 2vw, 1.5rem);
    color: var(--text-secondary);
    margin-bottom: 3rem;
    line-height: 1.6;
}

.cta-button {
    display: inline-block;
    padding: 18px 40px;
    background: var(--accent-blue);
    color: var(--bg-dark);
    text-decoration: none;
    font-weight: 700;
    font-size: 1.1rem;
    border-radius: 8px;
    transition: all 0.3s ease;
    box-shadow: 0 0 30px var(--accent-glow);
}

.cta-button:hover {
    transform: translateY(-2px);
    box-shadow: 0 0 50px var(--accent-glow);
}

.hero-visual {
    position: absolute;
    right: 0;
    top: 50%;
    transform: translateY(-50%);
    width: 50%;
    height: 80%;
    opacity: 0.3;
}

.soundwave {
    width: 100%;
    height: 100%;
    background: 
        repeating-linear-gradient(
            90deg,
            transparent,
            transparent 10px,
            var(--accent-blue) 10px,
            var(--accent-blue) 12px
        );
    animation: pulse 2s ease-in-out infinite;
    filter: blur(1px);
}

@keyframes pulse {
    0%, 100% { opacity: 0.3; }
    50% { opacity: 0.6; }
}

/* Problem Section */
.problem {
    padding: 120px 0;
    background: var(--bg-charcoal);
    text-align: center;
}

.section-title {
    font-size: clamp(2rem, 4vw, 3.5rem);
    font-weight: 700;
    margin-bottom: 2rem;
}

.problem-text {
    font-size: clamp(1.2rem, 2vw, 1.6rem);
    color: var(--text-secondary);
    max-width: 900px;
    margin: 0 auto;
    line-height: 1.8;
}

/* Solution Section */
.solution {
    padding: 120px 0;
    background: var(--bg-dark);
}

.solution .section-title {
    text-align: center;
    margin-bottom: 4rem;
}

.solution-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 40px;
}

.solution-card {
    background: var(--bg-charcoal);
    padding: 40px;
    border-radius: 12px;
    border: 1px solid rgba(0, 212, 255, 0.1);
    transition: all 0.3s ease;
}

.solution-card:hover {
    border-color: var(--accent-blue);
    transform: translateY(-5px);
    box-shadow: 0 10px 40px rgba(0, 212, 255, 0.2);
}

.icon {
    width: 60px;
    height: 60px;
    margin-bottom: 1.5rem;
    color: var(--accent-blue);
}

.solution-card h3 {
    font-size: 1.5rem;
    font-weight: 700;
    margin-bottom: 1rem;
}

.solution-card p {
    color: var(--text-secondary);
    font-size: 1.1rem;
    line-height: 1.7;
}

/* Offer Section */
.offer {
    padding: 120px 0;
    background: linear-gradient(135deg, var(--bg-charcoal) 0%, var(--bg-dark) 100%);
    text-align: center;
}

.offer-text {
    font-size: clamp(1.2rem, 2vw, 1.6rem);
    color: var(--text-secondary);
    max-width: 900px;
    margin: 0 auto 3rem;
    line-height: 1.8;
}

/* Footer */
.footer {
    padding: 60px 0;
    background: var(--bg-dark);
    text-align: center;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.footer p {
    color: var(--text-secondary);
    margin-bottom: 0.5rem;
}

.contact a {
    color: var(--accent-blue);
    text-decoration: none;
    transition: opacity 0.3s ease;
}

.contact a:hover {
    opacity: 0.8;
}

/* Responsive */
@media (max-width: 768px) {
    .hero {
        min-height: 90vh;
    }
    
    .hero-visual {
        opacity: 0.15;
        width: 100%;
    }
    
    .solution-grid {
        grid-template-columns: 1fr;
    }
    
    .problem, .solution, .offer {
        padding: 80px 0;
    }
}