/* Variables */
:root {
    --primary-color: #4caf50;
    --secondary-color: #00695c;
    --text-color: #333;
    --background-color: #f4f4f4;
    --box-shadow: 0 4px 8px rgba(0, 0, 0, 0.1);
    --border-radius: 10px;
    --transition-time: 0.3s;
}

/* Reset and base styles */
body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background-color: var(--background-color);
    padding-top: 56px;
    margin: 0;
}

/* Layout components */
header {
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    color: white;
    padding: 30px 0;
    text-align: center;
    animation: fadeInDown 1.2s ease-in-out;
}

header h1 {
    animation: fadeInDown 1s;
}

section {
    padding: 60px 20px;
}

footer {
    background-color: #a5d6a7;
    color: black;
    padding: 5px 0;
    text-align: center;
    position: fixed;
    bottom: 0;
    width: 100%;
    font-size: 0.8em;
}

/* Feature boxes */
.feature-box {
    background: white;
    padding: 40px 20px;
    border-radius: var(--border-radius);
    box-shadow: var(--box-shadow);
    margin-bottom: 30px;
    width: 70%;
    margin-left: auto;
    margin-right: auto;
    transition: transform var(--transition-time), background-color var(--transition-time) ease-in-out;
}

.feature-box:hover {
    transform: scale(1.05);
    background-color: #f0f0f0;
}

.feature-box h2 {
    color: var(--text-color);
    animation: fadeInRight 1.2s;
}

.feature-box p {
    line-height: 1.8;
}

/* Info box */
.info-box {
    background-color: #e0f7fa;
    border-left: 5px solid var(--secondary-color);
    padding: 15px;
    margin-bottom: 20px;
}

/* Custom button */
.btn-custom {
    background-color: var(--primary-color);
    color: white;
    padding: 10px 20px;
    transition: background-color var(--transition-time) ease;
}

.btn-custom:hover {
    background-color: #388e3c;
}

/* Credits section */
.credits-box {
    background-color: #a5d6a7;
    padding: 40px 20px;
    border-radius: var(--border-radius);
    box-shadow: var(--box-shadow);
    margin-bottom: 30px;
    text-align: center;
}

.credits-box .row {
    display: flex;
    justify-content: space-around;
    flex-wrap: wrap;
}

.credits-box img {
    border-radius: 50%;
    border: 4px solid var(--secondary-color);
    width: 150px;
    height: 150px;
    transition: transform var(--transition-time) ease;
}

.credits-box img:hover {
    transform: scale(1.1);
}

.credits-box h4 {
    margin-top: 10px;
    font-weight: bold;
    color: #004d40;
}

.credits-box p {
    margin-top: 5px;
    color: var(--secondary-color);
}

.credits-box .description {
    margin-top: 30px;
    font-size: 1.1em;
    color: #004d40;
}

/* QR code container */
.qr-container {
    display: flex;
    justify-content: center;
    align-items: center;
    padding: 20px;
}

.qr-image {
    max-width: 200px;
    height: auto;
    border-radius: var(--border-radius);
    box-shadow: var(--box-shadow);
}

/* Contenedor del video responsivo */
.video-container {
    position: relative;
    padding-bottom: 56.25%; /* Relación de aspecto 16:9 */
    height: 0;
    overflow: hidden;
    width: 100%;
    max-width: 900px; /* Aseguramos que no exceda el ancho del contenedor */
    margin: 0 auto; /* Centramos el video */
}

/* Estilo del iframe del video */
.video-container iframe {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    border-radius: 10px; /* Bordes redondeados en el video */
}

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

@keyframes fadeInRight {
    from { opacity: 0; transform: translateX(-50px); }
    to { opacity: 1; transform: translateX(0); }
}

/* Media queries */
@media (max-width: 768px) {
    .feature-box {
        width: 90%;
        padding: 30px 15px;
    }

    .credits-box .row {
        flex-direction: column;
        align-items: center;
    }

    .credits-box img {
        width: 120px;
        height: 120px;
    }
}