:root {
    --bg-color: #0A0A0A;
    --card-bg: #161616;
    --text-primary: #FFFFFF;
    --text-secondary: #A1A1AA;
    --accent: #7C3AED;
    --accent-hover: #6D28D9;
    --accent-light: rgba(124, 58, 237, 0.1);
    --border-color: #262626;
    --container-width: 1200px;
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

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

body {
    font-family: 'Inter', sans-serif;
    background-color: var(--bg-color);
    color: var(--text-primary);
    line-height: 1.6;
    overflow-x: hidden;
    scroll-behavior: smooth;
}

/* Typography */
h1, h2, h3, h4 {
    font-weight: 700;
    line-height: 1.2;
}

a {
    text-decoration: none;
    color: inherit;
    transition: var(--transition);
}

ul {
    list-style: none;
}

/* Layout */
.container {
    max-width: var(--container-width);
    margin: 0 auto;
    padding: 0 1.5rem;
}

.section {
    padding: 40px 0;
}

.grid {
    display: grid;
    gap: 2rem;
}

/* Header */
.header {
    position: fixed;
    top: 0;
    width: 100%;
    background: rgba(10, 10, 10, 0.8);
    backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--border-color);
    z-index: 1000;
    padding: 1rem 0;
}

.nav {
    display: flex;
    justify-content: space-between;
    align-items: center;
    position: relative;
}

/* Mobile Menu Button */
.mobile-menu-btn {
    display: block;
    background: none;
    border: none;
    color: var(--text-primary);
    cursor: pointer;
    padding: 0.5rem;
    z-index: 1001;
}

/* Nav Links Container */
.nav-links {
    display: none;
    gap: 2rem;
}

/* Mobile Nav Links Active State */
.nav-links.active {
    display: flex;
    position: absolute;
    top: 100%;
    left: 0;
    width: 100%;
    background: rgba(10, 10, 10, 0.95);
    backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--border-color);
    padding: 2rem;
    flex-direction: column;
    align-items: center;
    height: 100vh;
}

@media (min-width: 768px) {
    .nav {
        justify-content: space-between;
    }

    .mobile-menu-btn {
        display: none;
    }

    .nav-links {
        display: flex;
        position: static;
        width: auto;
        background: none;
        border: none;
        padding: 0;
        flex-direction: row;
    }
}

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

.nav-link:hover {
    color: var(--accent);
}

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 0.75rem 1.5rem;
    border-radius: 0.75rem;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
    border: none;
}

.btn-primary {
    background-color: var(--accent);
    color: white;
}

.btn-primary:hover {
    background-color: var(--accent-hover);
    transform: translateY(-2px);
    box-shadow: 0 10px 20px rgba(124, 58, 237, 0.2);
}

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

.btn-outline:hover {
    border-color: var(--accent);
}

/* Hero */
.hero {
    padding-top: 160px;
    padding-bottom: 100px;
}

.hero-grid {
    grid-template-columns: 1fr;
    align-items: center;
}

@media (min-width: 1024px) {
    .hero-grid {
        grid-template-columns: 1fr 1fr;
    }
}

.hero-title {
    font-size: 3rem;
    margin-bottom: 1.5rem;
    background: linear-gradient(to right, #fff, #a1a1aa);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.hero-text {
    font-size: 1.125rem;
    color: var(--text-secondary);
    margin-bottom: 2.5rem;
    max-width: 540px;
}

.hero-btns {
    display: flex;
    flex-wrap: wrap;
    gap: 1rem;
}

.hero-image-wrapper {
    position: relative;
}

.hero-image {
    width: 100%;
    border-radius: 1.5rem;
    box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.5);
}

/* Cards & Services */
.card {
    background: var(--card-bg);
    padding: 2.5rem;
    border-radius: 1.25rem;
    border: 1px solid var(--border-color);
    transition: var(--transition);
}

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

.card-icon {
    width: 3rem;
    height: 3rem;
    background: var(--accent-light);
    color: var(--accent);
    border-radius: 0.75rem;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 1.5rem;
}

.card-title {
    font-size: 1.25rem;
    margin-bottom: 1rem;
}

.card-description {
    color: var(--text-secondary);
    font-size: 0.9375rem;
}

/* Features */
.features-grid {
    grid-template-columns: 1fr;
    gap: 4rem;
    align-items: center;
}

@media (min-width: 1024px) {
    .features-grid {
        grid-template-columns: 1fr 1fr;
    }
}

.feature-list {
    margin-top: 2rem;
}

.feature-item {
    display: flex;
    align-items: center;
    gap: 1rem;
    margin-bottom: 1.25rem;
    font-size: 1.125rem;
}

.check-icon {
    color: #10B981;
    background: rgba(16, 185, 129, 0.1);
    padding: 0.25rem;
    border-radius: 50%;
}

/* Pricing */
.pricing-grid {
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
    margin-top: 4rem;
}

.pricing-card {
    display: flex;
    flex-direction: column;
}

.pricing-card.popular {
    border: 2px solid var(--accent);
    position: relative;
    transform: scale(1.05);
    background: #1a1a1a;
}

.badge {
    position: absolute;
    top: -12px;
    left: 50%;
    transform: translateX(-50%);
    background: var(--accent);
    color: white;
    padding: 0.25rem 0.75rem;
    border-radius: 99px;
    font-size: 0.75rem;
    font-weight: 700;
    text-transform: uppercase;
}

.pricing-list {
    margin: 2rem 0;
    flex-grow: 1;
}

.pricing-item {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    margin-bottom: 1rem;
    font-size: 0.875rem;
    color: var(--text-secondary);
}

/* Contact */
.contact-grid {
    grid-template-columns: 1fr;
    gap: 4rem;
}

@media (min-width: 1024px) {
    .contact-grid {
        grid-template-columns: 1fr 1fr;
    }
}

.form {
    background: var(--card-bg);
    padding: 3rem;
    border-radius: 1.5rem;
    border: 1px solid var(--border-color);
}

.form-group {
    margin-bottom: 1.5rem;
}

.form-label {
    display: block;
    margin-bottom: 0.5rem;
    font-weight: 600;
    font-size: 0.875rem;
}

.form-input, .form-textarea {
    width: 100%;
    padding: 1rem;
    background: var(--bg-color);
    border: 1px solid var(--border-color);
    border-radius: 0.75rem;
    color: var(--text-primary);
    transition: var(--transition);
}

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

/* Footer */
.footer {
    background: #000;
    padding: 80px 0 40px;
    border-top: 1px solid var(--border-color);
}

.footer-grid {
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 3rem;
}

.footer-title {
    color: var(--text-primary);
    margin-bottom: 1.5rem;
}

.footer-links li {
    margin-bottom: 0.75rem;
}

.footer-links a {
    color: var(--text-secondary);
}

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

.footer-bottom {
    margin-top: 50px;
    padding-top: 25px;
    border-top: 1px solid var(--border-color);
    display: flex;
    flex-wrap: wrap;
    justify-content: space-between;
    gap: 1rem;
    font-size: 0.875rem;
    color: var(--text-secondary);
}

/* Animations */
.animate-on-scroll {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.8s ease-out, transform 0.8s ease-out;
}

.animate-on-scroll.active {
    opacity: 1;
    transform: translateY(0);
}