:root {
    --bg-color: #0f1115;
    --secondary-bg: #1a1d24;
    --card-bg: #232730;
    --text-primary: #f0f2f5;
    --text-secondary: #a0a5b0;
    --accent-color: #00d4ff;
    --accent-hover: #00b8e6;
    --border-color: #333842;
    --transition: all 0.3s ease;
}

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

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

/* Layout & Utilities */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

.section-padding {
    padding: 80px 0;
}

a {
    text-decoration: none;
    color: inherit;
}

ul {
    list-style: none;
}

/* Buttons */
.btn {
    display: inline-block;
    padding: 12px 28px;
    border-radius: 50px;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
}

.btn-primary {
    background-color: var(--accent-color);
    color: #000;
    border: 2px solid var(--accent-color);
}

.btn-primary:hover {
    background-color: var(--accent-hover);
    border-color: var(--accent-hover);
    transform: translateY(-2px);
}

.btn-outline {
    background-color: transparent;
    border: 2px solid var(--accent-color);
    color: var(--accent-color);
}

.btn-outline:hover {
    background-color: rgba(0, 212, 255, 0.1);
}

/* Header */
.site-header {
    background-color: rgba(15, 17, 21, 0.95);
    backdrop-filter: blur(10px);
    padding: 20px 0;
    position: sticky;
    top: 0;
    z-index: 1000;
    border-bottom: 1px solid var(--border-color);
}

.site-header .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    font-size: 1.8rem;
    font-weight: 800;
    color: var(--accent-color);
    letter-spacing: 1px;
}

.nav-links {
    display: flex;
    gap: 30px;
}

.nav-links a {
    font-weight: 500;
    color: var(--text-secondary);
    transition: var(--transition);
}

.nav-links a:hover,
.nav-links a.active {
    color: var(--accent-color);
}

.mobile-menu-btn {
    display: none;
    background: none;
    border: none;
    color: var(--text-primary);
    font-size: 1.5rem;
    cursor: pointer;
}

/* Hero Section */
.hero {
    padding: 100px 0;
    background: radial-gradient(circle at top right, rgba(0, 212, 255, 0.1), transparent 40%);
}

.hero-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 50px;
    align-items: center;
}

.hero-text h1 {
    font-size: 3.5rem;
    line-height: 1.2;
    margin-bottom: 20px;
}

.hero-text span {
    color: var(--accent-color);
}

.hero-text h2 {
    font-size: 2rem;
    color: var(--text-secondary);
    margin-bottom: 20px;
    font-weight: 400;
}

.hero-text p {
    font-size: 1.1rem;
    color: var(--text-secondary);
    margin-bottom: 30px;
    max-width: 500px;
}

.cta-group {
    display: flex;
    gap: 15px;
}

.hero-image img {
    width: 100%;
    border-radius: 20px;
    box-shadow: 0 20px 50px rgba(0,0,0,0.5);
}

/* Intro Features */
.intro-features .container {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
    margin-top: -50px;
    position: relative;
    z-index: 2;
}

.feature-card {
    background-color: var(--card-bg);
    padding: 30px;
    border-radius: 15px;
    border: 1px solid var(--border-color);
    transition: var(--transition);
}

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

.feature-card i {
    font-size: 2rem;
    color: var(--accent-color);
    margin-bottom: 20px;
}

.feature-card h3 {
    margin-bottom: 10px;
}

.feature-card p {
    color: var(--text-secondary);
}

/* Page Header */
.page-header {
    text-align: center;
    padding: 80px 0 40px;
    background: linear-gradient(to bottom, var(--secondary-bg), var(--bg-color));
}

.page-header h1 {
    font-size: 3rem;
    margin-bottom: 10px;
    color: var(--accent-color);
}

.page-header p {
    font-size: 1.2rem;
    color: var(--text-secondary);
}

/* Features Page */
.feature-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
    margin-bottom: 100px;
}

.feature-row.reverse .text-col {
    order: 2;
}

.feature-row.reverse .img-col {
    order: 1;
}

.icon-large {
    font-size: 3rem;
    color: var(--accent-color);
    margin-bottom: 20px;
}

.text-col h2 {
    font-size: 2.5rem;
    margin-bottom: 20px;
}

.text-col ul {
    margin-top: 20px;
    list-style: disc;
    padding-left: 20px;
    color: var(--text-secondary);
}

.text-col li {
    margin-bottom: 10px;
}

.img-col img {
    width: 100%;
    border-radius: 15px;
    filter: grayscale(20%);
    transition: var(--transition);
}

.img-col img:hover {
    filter: grayscale(0%);
}

/* Pricing */
.pricing-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
    align-items: flex-start;
}

.price-card {
    background-color: var(--card-bg);
    padding: 40px;
    border-radius: 20px;
    border: 1px solid var(--border-color);
    text-align: center;
    position: relative;
}

.price-card.featured {
    background-color: var(--secondary-bg);
    border: 2px solid var(--accent-color);
    transform: scale(1.05);
    z-index: 2;
}

.badge {
    position: absolute;
    top: -15px;
    left: 50%;
    transform: translateX(-50%);
    background-color: var(--accent-color);
    color: #000;
    padding: 5px 15px;
    border-radius: 20px;
    font-weight: bold;
    font-size: 0.9rem;
}

.price-card .price {
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--accent-color);
    margin: 15px 0;
}

.card-img i {
    font-size: 4rem;
    color: var(--text-secondary);
    margin: 30px 0;
}

.features-list {
    text-align: left;
    margin-bottom: 30px;
}

.features-list li {
    margin-bottom: 12px;
    color: var(--text-secondary);
    display: flex;
    align-items: center;
    gap: 10px;
}

.features-list li i {
    color: var(--accent-color);
}

/* Contact */
.contact-wrapper {
    display: grid;
    grid-template-columns: 1fr 1.5fr;
    gap: 50px;
    background-color: var(--card-bg);
    border-radius: 20px;
    overflow: hidden;
}

.contact-info {
    background-color: var(--secondary-bg);
    padding: 50px;
}

.info-item {
    display: flex;
    align-items: center;
    gap: 15px;
    margin-bottom: 20px;
    color: var(--text-secondary);
}

.social-links {
    margin-top: 40px;
    display: flex;
    gap: 20px;
}

.social-links a {
    font-size: 1.5rem;
    color: var(--text-primary);
}

.contact-form {
    padding: 50px;
}

.form-group {
    margin-bottom: 20px;
}

.form-group label {
    display: block;
    margin-bottom: 8px;
    font-weight: 500;
}

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 12px;
    background-color: var(--bg-color);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    color: var(--text-primary);
    font-family: inherit;
}

.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--accent-color);
}

/* Footer */
footer {
    background-color: #000;
    padding: 40px 0;
    text-align: center;
    margin-top: auto;
    color: var(--text-secondary);
    border-top: 1px solid var(--border-color);
}

/* Mobile */
@media (max-width: 768px) {
    .nav-links {
        display: none;
    }
    
    .mobile-menu-btn {
        display: block;
    }
    
    .hero-content {
        grid-template-columns: 1fr;
        text-align: center;
    }
    
    .hero-text h1 {
        font-size: 2.5rem;
    }
    
    .cta-group {
        justify-content: center;
    }
    
    .feature-row {
        grid-template-columns: 1fr;
        gap: 30px;
    }
    
    .feature-row.reverse .text-col {
        order: 1;
    }
    
    .contact-wrapper {
        grid-template-columns: 1fr;
    }
}