/* Variables de color */
:root {
    --primary: #0056b3;
    --secondary: #00c6ff;
    --dark: #1a1a1a;
    --light: #f4f7f6;
    --white: #ffffff;
}

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

body {
    font-family: 'Inter', sans-serif;
    line-height: 1.6;
    color: #333;
    background-color: var(--white);
}

.container {
    max-width: 1100px;
    margin: auto;
    padding: 0 20px;
}

/* Navegación */
header {
    background: var(--white);
    padding: 20px 0;
    box-shadow: 0 2px 10px rgba(0,0,0,0.1);
    position: sticky;
    top: 0;
    z-index: 1000;
}

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

.logo {
    font-size: 1.5rem;
    font-weight: bold;
    color: var(--dark);
}

.logo span { color: var(--primary); }

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

nav ul li a {
    text-decoration: none;
    color: var(--dark);
    margin-left: 25px;
    font-weight: 500;
    transition: 0.3s;
}

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

.btn-nav {
    background: var(--primary);
    color: white !important;
    padding: 8px 20px;
    border-radius: 5px;
}

/* Hero Section */
.hero {
    height: 80vh;
    background: linear-gradient(rgba(0,0,0,0.7), rgba(0,0,0,0.7)), url('https://images.unsplash.com/photo-1451187580459-43490279c0fa?auto=format&fit=crop&w=1200&q=80');
    background-size: cover;
    background-position: center;
    color: white;
    display: flex;
    align-items: center;
    text-align: center;
}

.hero h1 { font-size: 3rem; margin-bottom: 20px; }
.hero h1 span { color: var(--secondary); }
.hero p { font-size: 1.2rem; margin-bottom: 30px; opacity: 0.9; }

.btn-primary {
    background: var(--secondary);
    color: var(--dark);
    padding: 12px 30px;
    text-decoration: none;
    font-weight: bold;
    border-radius: 5px;
    transition: 0.3s;
}

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

/* Servicios */
.services { padding: 80px 0; text-align: center; }
.services h2 { margin-bottom: 40px; font-size: 2.5rem; }

.grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 20px;
}

.card {
    padding: 40px;
    background: var(--light);
    border-radius: 10px;
    transition: 0.3s;
}

.card:hover {
    transform: translateY(-10px);
    box-shadow: 0 10px 20px rgba(0,0,0,0.1);
}

.card h3 { margin-bottom: 15px; color: var(--primary); }

/* Footer */
footer {
    background: var(--dark);
    color: white;
    padding: 40px 0;
    text-align: center;
}