:root{
    --bg-primary: #0a0a0a;
    --bg-secunday: #1a1a1a;
    --bg-tertiary: #2a2a2a;
    --border-color: #333333;
    --accent-primary: #6366f1;
    --accent-secundary: #8b5cf6;

    --text-primary: #ffffff;
    --text-secundary: #b0b0b0;

    --font-primary: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    --font-size-xl: 1.25rem;
    --font-size-lg: 1.125rem;
    --font-size-3xl: 1.875rem;
    --font-size-5xl: 3rem;
    

    --border-radius-md: 0.5rem;
    
    --spacing-sm: 0.75rem;
    --spacing-md: 1rem;
    --spacing-lg: 1.125rem;
    --spacing-xl: 1.25rem;
    --spacing-2xl: 1.5rem;

    --transition-normal: 0.3s ease;
}

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

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

.header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    background-color: rgba(26, 26, 26, 0.9);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--border-color);
    z-index: 1000;
    padding: var(--spacing-md);
}

.nav {
    max-width: 1200px;
    margin: 0 auto;
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0 var(--spacing-xl);
}

.logo {
    font-size: var(--font-size-xl);
    font-weight: bold;
    color: var(--accent-primary);
    text-decoration: none;
}

.nav-links {
    display: flex;
    list-style: none;
    gap:  var(--spacing-xl);
}

.nav-links a {
    color: var(--text-secundary);
    text-decoration: none;
    transition: color var(--transition-normal);
    font-weight: 500;
}

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

.cta-button {
    background: linear-gradient(135deg, var(--accent-primary), var(--accent-secundary));
    color: white;
    padding: var(--spacing-sm);
    border: none;
    border-radius: var(--border-radius-md);
    text-decoration: none;
    font-weight: 600;
    transition: transform var(--transition-normal);
    cursor: pointer;
}

.cta-button:hover{
    transform: translateY(-2px);
}

.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    background: linear-gradient(135deg, var(--bg-primary) 0%, var(--bg-secunday) 100%);
    position: relative;
    overflow: hidden;
}

.hero::before{
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: radial-gradient(circle at 20% 80%, var(--accent-primary) 20%, transparent 50%), radial-gradient(circle at 80% 20%, var(--accent-secundary)20%, transparent 50%);
    opacity: 0.1;
}

.hero-content{
    max-width: 800px;
    padding: 0 var(--spacing-xl);
    position: relative;
    z-index: 1;
}

.hero h1{
    font-size: var(--font-size-5xl);
    font-weight: bold;
    margin-bottom: var(--spacing-lg);
    background: linear-gradient(135deg, var(--text-primary), var(--text-secundary));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero p {
    font-size: var(--font-size-lg);
    color: var(--text-secundary);
    margin-bottom: var(--spacing-2xl);
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

.btn-secundary {
    background-color: transparent;
    color: var(--text-primary);
    padding: var(--spacing-sm) var(--spacing-lg);
    border: 2px solid var(--border-color);
    border-radius: var(--border-radius-md);
    text-decoration: none;
    font-weight: 600;
    transition: all var(--transition-normal);
}

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

.features{
    padding: var(--spacing-2xl) 0;
    background: var(--bg-secunday);
}

.container{
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-lg);
}

.section-title{
    text-align: center;
    font-size: var(--font-size-3xl);
    margin-bottom: var(--spacing-xl);
    color: var(--text-primary);
}

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

.features-card{
    background: var(--bg-tertiary);
    padding: var(--spacing-xl);
    border-radius: var(--border-radius-md);
    border: 1px solid var(--border-color);
    transition: transform var(--transition-normal);
}

.features-icon{
    height: 60px;
    width: 60px;
    background: linear-gradient(135deg, var(--accent-primary), var(--accent-secundary));
    border-radius: var(--border-radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: var(--spacing-lg);
    font-size: var(--font-size-3xl);
}

.features-card h3{
    font-size: var(--font-size-xl);
    margin-bottom: var(--spacing-lg);
    color: var(--text-primary);
}

.features-card p {
    color: var(--text-secundary);
    line-height: 1.6;
}