/* Reset básico y variables */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
}

:root {
    --primary-color: #0f172a;
    --accent-color: #2563eb;
    --text-color: #334155;
    --bg-light: #f8fafc;
}

body {
    color: var(--text-color);
    line-height: 1.6;
}

/* Navegación y Hero */
.hero {
    background: linear-gradient(135deg, #0f172a 0%, #1e293b 100%);
    color: #ffffff;
    padding: 2rem 5% 5rem 5%;
    text-align: center;
}

.navbar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 4rem;
}

.logo {
    font-size: 1.5rem;
    font-weight: bold;
    letter-spacing: 2px;
    color: #38bdf8;
}

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

.nav-links a {
    color: #f1f5f9;
    text-decoration: none;
    font-weight: 500;
}

.hero-content h1 {
    font-size: 2.8rem;
    margin-bottom: 1rem;
}

.hero-content p {
    font-size: 1.2rem;
    color: #94a3b8;
    max-width: 600px;
    margin: 0 auto 2rem auto;
}

.btn-primary {
    background-color: var(--accent-color);
    color: #ffffff;
    padding: 0.8rem 2rem;
    border-radius: 6px;
    text-decoration: none;
    font-weight: bold;
    display: inline-block;
}

/* Contenido Principal */
.container {
    padding: 5rem 5%;
    max-width: 1200px;
    margin: 0 auto;
}

.container h2 {
    text-align: center;
    margin-bottom: 3rem;
    color: var(--primary-color);
}

.cards-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 2rem;
}

.card {
    background: var(--bg-light);
    padding: 2rem;
    border-radius: 8px;
    border: 1px solid #e2e8f0;
}

.card h3 {
    margin-bottom: 1rem;
    color: var(--accent-color);
}

footer {
    text-align: center;
    padding: 2rem;
    background-color: var(--primary-color);
    color: #94a3b8;
    font-size: 0.9rem;
}