:root {
    --bg-color: #0f172a;
    --text-color: #e2e8f0;
    --primary-color: #38bdf8;
    --secondary-color: #94a3b8;
    --accent-color: #f472b6;
    --card-bg: #1e293b;
    --border-color: #334155;
}

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

body {
    font-family: 'Inter', system-ui, -apple-system, sans-serif;
    background-color: var(--bg-color);
    background-image: linear-gradient(rgba(15, 23, 42, 0.82), rgba(15, 23, 42, 0.9)), url('./humanclaw-hybrid.svg');
    background-size: cover;
    background-position: center top;
    background-repeat: no-repeat;
    background-attachment: fixed;
    color: var(--text-color);
    line-height: 1.6;
    scroll-behavior: smooth;
}

html {
    scroll-behavior: smooth;
}

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

/* Header */
header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1.5rem 2rem;
    position: sticky;
    top: 0;
    background-color: rgba(15, 23, 42, 0.9);
    backdrop-filter: blur(10px);
    z-index: 1000;
    border-bottom: 1px solid var(--border-color);
}

.logo {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--primary-color);
    letter-spacing: -0.05em;
}

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

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

/* Buttons */
.btn-primary {
    background-color: var(--primary-color);
    color: var(--bg-color);
    padding: 0.75rem 1.5rem;
    border-radius: 0.5rem;
    font-weight: 600;
    transition: transform 0.2s, opacity 0.2s;
    border: none;
    cursor: pointer;
    display: inline-block;
}

.btn-primary:hover {
    opacity: 0.9;
    transform: translateY(-2px);
}

.btn-secondary {
    border: 1px solid var(--secondary-color);
    padding: 0.75rem 1.5rem;
    border-radius: 0.5rem;
    font-weight: 600;
    transition: all 0.2s;
    display: inline-block;
}

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

/* Hero Section */
.hero {
    padding: 6rem 2rem;
    text-align: center;
    max-width: 800px;
    margin: 0 auto;
}

.hero h1 {
    font-size: 4rem;
    margin-bottom: 1.5rem;
    background: linear-gradient(to right, var(--primary-color), var(--accent-color));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    line-height: 1.1;
}

.slogan {
    font-size: 1.5rem;
    color: var(--secondary-color);
    margin-bottom: 3rem;
    font-weight: 300;
}

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

/* Sections */
section {
    padding: 4rem 2rem;
    max-width: 1200px;
    margin: 0 auto;
}

h2 {
    font-size: 2.5rem;
    text-align: center;
    margin-bottom: 3rem;
}

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

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

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

.feature-card h3 {
    margin-bottom: 1rem;
    color: var(--primary-color);
}

/* Comparison Table */
table {
    width: 100%;
    border-collapse: collapse;
    background-color: var(--card-bg);
    border-radius: 1rem;
    overflow: hidden;
}

th, td {
    padding: 1.5rem;
    text-align: left;
    border-bottom: 1px solid var(--border-color);
}

th {
    background-color: rgba(255, 255, 255, 0.05);
    font-weight: 600;
}

tr:last-child td {
    border-bottom: none;
}

/* Pricing */
.pricing-card {
    background-color: var(--card-bg);
    padding: 3rem;
    border-radius: 1rem;
    text-align: center;
    border: 1px solid var(--primary-color);
    max-width: 500px;
    margin: 0 auto;
    position: relative;
    overflow: hidden;
}

.pricing-card::before {
    content: "BEST VALUE";
    position: absolute;
    top: 1rem;
    right: -2rem;
    background-color: var(--accent-color);
    padding: 0.5rem 3rem;
    transform: rotate(45deg);
    font-size: 0.8rem;
    font-weight: bold;
}

.price {
    font-size: 2.5rem;
    font-weight: 700;
    margin: 1.5rem 0;
}

.pricing-card ul {
    list-style: none;
    margin-bottom: 2rem;
    text-align: left;
    display: inline-block;
}

.pricing-card li {
    margin-bottom: 0.5rem;
}

/* Contact */
.contact {
    text-align: center;
    max-width: 600px;
}

#contact-form {
    display: flex;
    flex-direction: column;
    gap: 1rem;
    margin-top: 2rem;
}

input, textarea {
    padding: 1rem;
    border-radius: 0.5rem;
    border: 1px solid var(--border-color);
    background-color: var(--card-bg);
    color: var(--text-color);
    font-family: inherit;
}

input:focus, textarea:focus {
    outline: none;
    border-color: var(--primary-color);
}

.note {
    font-size: 0.8rem;
    color: var(--secondary-color);
    margin-top: 1rem;
}

footer {
    text-align: center;
    padding: 2rem;
    color: var(--secondary-color);
    border-top: 1px solid var(--border-color);
    margin-top: 4rem;
}

/* Responsive */
@media (max-width: 768px) {
    .hero h1 {
        font-size: 2.5rem;
    }
    
    nav {
        display: none; /* Simplify for mobile for now */
    }
    
    header {
        justify-content: center;
    }
}