/* ============================================
   LAYOUT PRINCIPAL
   ============================================ */

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

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    line-height: 1.6;
    color: #e0e0e0;
    background: #0a0e27;
    scroll-behavior: smooth;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

/* ============================================
   NAVIGATION
   ============================================ */

nav {
    position: fixed;
    top: 0;
    width: 100%;
    background: rgba(10, 14, 39, 0.95);
    backdrop-filter: blur(10px);
    z-index: 1000;
    padding: 1rem 0;
    border-bottom: 1px solid rgba(0, 255, 157, 0.2);
}

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

nav .logo {
    font-size: 1.5rem;
    font-weight: bold;
    color: #00ff9d;
}

nav ul {
    list-style: none;
    display: flex;
    gap: 2rem;
}

nav a {
    color: #e0e0e0;
    text-decoration: none;
    transition: color 0.3s;
}

nav a:hover {
    color: #00ff9d;
}

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

/* ============================================
   HERO SECTION
   ============================================ */

.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, #0a0e27 0%, #1a1f3a 100%);
    padding: 120px 20px 60px;
    position: relative;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    width: 500px;
    height: 500px;
    background: radial-gradient(circle, rgba(0, 255, 157, 0.1) 0%, transparent 70%);
    top: -250px;
    right: -250px;
}

.hero-content {
    text-align: center;
    position: relative;
    z-index: 1;
}

.hero h1 {
    font-size: 3.5rem;
    font-weight: bold;
    margin-bottom: 1rem;
    color: #ffffff;
    text-shadow: 0 0 20px rgba(0, 255, 157, 0.3);
}

.hero .subtitle {
    font-size: 1.5rem;
    color: #00ff9d;
    margin-bottom: 1rem;
}

.hero .description {
    font-size: 1.2rem;
    color: #b0b0b0;
    max-width: 800px;
    margin: 0 auto 2rem;
    line-height: 1.8;
}

.hero-buttons {
    display: flex;
    gap: 1rem;
    justify-content: center;
    flex-wrap: wrap;
}

/* ============================================
   SECTIONS
   ============================================ */

section {
    padding: 80px 0;
}

.section-title {
    text-align: center;
    font-size: 2.5rem;
    margin-bottom: 3rem;
    color: #ffffff;
    position: relative;
    padding-bottom: 1rem;
}

.section-title::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 100px;
    height: 3px;
    background: linear-gradient(90deg, transparent, #00ff9d, transparent);
}

/* ============================================
   RESPONSIVE
   ============================================ */

@media (max-width: 768px) {
    nav ul { 
        display: none; 
    }
    nav .nav-links ul {
        display: none;
    }
    .hero h1 { 
        font-size: 2.5rem; 
    }
    .hero .subtitle { 
        font-size: 1.2rem; 
    }
    .hero-buttons {
        flex-direction: column;
        align-items: center;
    }
}