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

body {
    font-family: 'Arial', sans-serif;
    background: linear-gradient(135deg, #1e3c72, #2a5298);
    color: #fff;
    overflow-x: hidden;
}

header {
    text-align: center;
    padding: 50px 20px;
    background: rgba(0, 0, 0, 0.5);
    animation: fadeIn 2s ease-in;
}

header h1 {
    font-size: 3em;
    margin-bottom: 10px;
    text-shadow: 2px 2px 4px rgba(0,0,0,0.5);
}

header p {
    font-size: 1.2em;
    opacity: 0.9;
}

main {
    padding: 20px;
}

.hero {
    position: relative;
    height: 60vh;
    overflow: hidden;
    border-radius: 10px;
    box-shadow: 0 10px 30px rgba(0,0,0,0.5);
}

.slider {
    display: flex;
    width: 400%;
    height: 100%;
    transition: transform 0.5s ease;
}

.slide {
    width: 25%;
    background-size: cover;
    background-position: center;
}

.slider-controls {
    position: absolute;
    top: 50%;
    width: 100%;
    display: flex;
    justify-content: space-between;
    transform: translateY(-50%);
}

.slider-controls button {
    background: rgba(255,255,255,0.8);
    border: none;
    padding: 10px 15px;
    cursor: pointer;
    border-radius: 50%;
    font-size: 1.5em;
    transition: background 0.3s;
}

.slider-controls button:hover {
    background: rgba(255,255,255,1);
}

.features {
    margin: 50px 0;
}

.features h2 {
    text-align: center;
    font-size: 2em;
    margin-bottom: 30px;
}

.feature-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 20px;
}

.feature {
    background: rgba(255,255,255,0.1);
    padding: 20px;
    border-radius: 10px;
    text-align: center;
    transition: transform 0.3s;
}

.feature:hover {
    transform: translateY(-10px);
}

.feature h3 {
    margin-bottom: 10px;
}

footer {
    text-align: center;
    padding: 20px;
    background: rgba(0,0,0,0.5);
}

footer a {
    color: #fff;
    text-decoration: none;
}

footer a:hover {
    text-decoration: underline;
}

/* Animaciones */
@keyframes fadeIn {
    from { opacity: 0; transform: translateY(-20px); }
    to { opacity: 1; transform: translateY(0); }
}

/* Responsive */
@media (max-width: 768px) {
    header h1 {
        font-size: 2em;
    }
    .hero {
        height: 40vh;
    }
}