:root {
    --bg-color: #0a0a0a;
    --text-color: #ffffff;
    --text-muted: #a0a0a0;
    --primary-color: #6366f1;
    --primary-hover: #4f46e5;
    --accent-color: #ec4899;
    --card-bg: #171717;
    --border-color: #262626;
    --font-heading: 'Outfit', sans-serif;
    --font-body: 'Inter', sans-serif;
}

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

body {
    font-family: var(--font-body);
    background-color: var(--bg-color);
    color: var(--text-color);
    line-height: 1.6;
    overflow-x: hidden;
}

h1, h2, h3 {
    font-family: var(--font-heading);
    font-weight: 700;
}

a {
    text-decoration: none;
    color: inherit;
    transition: color 0.3s;
}

/* Navbar */
.navbar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1.5rem 5%;
    position: fixed;
    top: 0;
    width: 100%;
    background: rgba(10, 10, 10, 0.8);
    backdrop-filter: blur(10px);
    z-index: 1000;
    border-bottom: 1px solid var(--border-color);
}

.logo {
    font-size: 1.5rem;
    font-weight: 800;
    letter-spacing: -0.05em;
    background: linear-gradient(to right, var(--primary-color), var(--accent-color));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.nav-links {
    display: flex;
    gap: 2rem;
    align-items: center;
}

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

/* Buttons */
.btn-primary {
    background: var(--primary-color);
    color: white;
    padding: 0.8rem 1.5rem;
    border: none;
    border-radius: 8px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
}

.btn-primary:hover {
    background: var(--primary-hover);
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(99, 102, 241, 0.3);
}

.btn-secondary {
    background: transparent;
    color: white;
    padding: 0.8rem 1.5rem;
    border: 1px solid var(--border-color);
    border-radius: 8px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
}

.btn-secondary:hover {
    border-color: var(--text-color);
    background: rgba(255, 255, 255, 0.05);
}

.btn-primary.small {
    padding: 0.5rem 1rem;
    font-size: 0.9rem;
}

/* Hero Section */
.hero {
    display: flex;
    flex-direction: column;
    align-items: center;
    padding: 8rem 5% 4rem;
    text-align: center;
    gap: 3rem;
}

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

.hero h1 {
    font-size: 3.5rem;
    line-height: 1.1;
    margin-bottom: 1.5rem;
}

.gradient-text {
    background: linear-gradient(to right, var(--primary-color), var(--accent-color));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.hero-sub {
    font-size: 1.25rem;
    color: var(--text-muted);
    margin-bottom: 2rem;
}

.cta-group {
    display: flex;
    gap: 1rem;
    justify-content: center;
}

/* Comparison Slider */
.hero-visual {
    width: 100%;
    max-width: 900px;
    height: 500px;
    border-radius: 16px;
    overflow: hidden;
    position: relative;
    box-shadow: 0 20px 50px rgba(0, 0, 0, 0.5);
    border: 1px solid var(--border-color);
}

.comparison-slider {
    position: relative;
    width: 100%;
    height: 100%;
}

.image-container {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    overflow: hidden;
}

.image-container img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
}

.image-container.after {
    width: 50%; /* Initial state */
    z-index: 2;
    border-right: 2px solid white;
}

.label {
    position: absolute;
    bottom: 20px;
    background: rgba(0, 0, 0, 0.6);
    color: white;
    padding: 5px 10px;
    border-radius: 4px;
    font-size: 0.8rem;
    font-weight: 600;
    pointer-events: none;
}

.image-container.before .label {
    right: 20px;
}

.image-container.after .label {
    left: 20px;
}

.slider-handle {
    position: absolute;
    top: 0;
    bottom: 0;
    left: 50%;
    width: 40px;
    transform: translateX(-50%);
    z-index: 3;
    cursor: ew-resize;
    display: flex;
    align-items: center;
    justify-content: center;
}

.handle-line {
    position: absolute;
    top: 0;
    bottom: 0;
    width: 2px;
    background: white;
}

.handle-circle {
    width: 40px;
    height: 40px;
    background: white;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--bg-color);
    font-weight: bold;
    box-shadow: 0 0 10px rgba(0,0,0,0.3);
}

/* Problem Section */
.problem-solution {
    padding: 6rem 5%;
    background: var(--card-bg);
}

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

.problem {
    text-align: center;
    max-width: 700px;
    margin: 0 auto 4rem;
}

.problem h2 {
    font-size: 2.5rem;
    margin-bottom: 1rem;
}

.problem p {
    color: var(--text-muted);
    font-size: 1.1rem;
}

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

.stat-card {
    background: var(--bg-color);
    padding: 2rem;
    border-radius: 12px;
    text-align: center;
    border: 1px solid var(--border-color);
}

.stat-card h3 {
    font-size: 2.5rem;
    color: var(--primary-color);
    margin-bottom: 0.5rem;
}

/* How It Works */
.how-it-works {
    padding: 6rem 5%;
}

.section-title {
    text-align: center;
    font-size: 2.5rem;
    margin-bottom: 4rem;
}

.steps-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 3rem;
}

.step-card {
    text-align: center;
}

.step-icon {
    width: 80px;
    height: 80px;
    background: var(--card-bg);
    border-radius: 50%;
    margin: 0 auto 1.5rem;
    display: flex;
    align-items: center;
    justify-content: center;
    border: 1px solid var(--border-color);
}
.step-icon img {
    width: 50%;
    height: 50%;
    object-fit: contain;
}

.step-card h3 {
    margin-bottom: 1rem;
    font-size: 1.5rem;
}

.step-card p {
    color: var(--text-muted);
}

/* Features */
.features {
    padding: 6rem 5%;
    background: linear-gradient(to bottom, var(--bg-color), var(--card-bg));
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
}

.feature-item {
    padding: 2rem;
    border-radius: 12px;
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid var(--border-color);
    transition: transform 0.3s;
}

.feature-item:hover {
    transform: translateY(-5px);
    border-color: var(--primary-color);
}

.feature-item h3 {
    margin-bottom: 1rem;
    font-size: 1.25rem;
}

.feature-item p {
    color: var(--text-muted);
}

/* Footer */
.footer {
    padding: 6rem 5% 2rem;
    border-top: 1px solid var(--border-color);
    text-align: center;
}

.footer-cta {
    margin-bottom: 4rem;
}

.footer-cta h2 {
    font-size: 2.5rem;
    margin-bottom: 1rem;
}

.footer-cta p {
    color: var(--text-muted);
    margin-bottom: 2rem;
    font-size: 1.2rem;
}

.footer-bottom {
    color: var(--text-muted);
    font-size: 0.9rem;
}

/* Responsive */
@media (max-width: 768px) {
    .hero h1 {
        font-size: 2.5rem;
    }
    
    .hero-visual {
        height: 300px;
    }
    
    .nav-links {
        display: none; /* Simple hide for mobile for this demo */
    }
}