/* Estilos para el Generador de Seriales */
body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background-color: #1a1a2e;
    color: #e0e0e0;
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 100vh;
    margin: 0;
    padding: 20px;
    box-sizing: border-box;
}

.container {
    background-color: #16213e;
    padding: 30px 40px;
    border-radius: 12px;
    box-shadow: 0 8px 16px rgba(0, 0, 0, 0.4);
    max-width: 600px;
    width: 100%;
    border: 1px solid #0f3460;
    position: relative;
}

/* Selector de idioma */
.language-selector {
    position: absolute;
    top: 15px;
    right: 20px;
    display: flex;
    gap: 8px;
    z-index: 10;
}

.lang-btn {
    background-color: #0f3460;
    color: #e0e0e0;
    border: none;
    padding: 6px 10px;
    border-radius: 15px;
    cursor: pointer;
    font-size: 0.8em;
    font-weight: 500;
    transition: all 0.3s ease;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.2);
}

.lang-btn:hover {
    background-color: #1a4a82;
    transform: translateY(-1px);
    box-shadow: 0 3px 6px rgba(0, 0, 0, 0.3);
}

.lang-btn.active {
    background-color: #e94560;
    color: white;
    box-shadow: 0 3px 6px rgba(233, 69, 96, 0.3);
}

/* Header */
.header {
    text-align: center;
    margin-bottom: 30px;
    margin-top: 10px;
}

h1 {
    color: #e94560;
    font-size: 1.8em;
    letter-spacing: 0.5px;
    margin: 0;
}

/* Navegación por pestañas */
.tab-navigation {
    display: flex;
    margin: 20px 0;
    border-radius: 8px;
    overflow: hidden;
    border: 1px solid #0f3460;
}

.tab-btn {
    flex: 1;
    background-color: #0f3460;
    color: #e0e0e0;
    border: none;
    padding: 15px 20px;
    cursor: pointer;
    transition: all 0.3s ease;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    font-size: 1em;
    font-weight: 500;
    border-right: 1px solid #1a4a82;
}

.tab-btn:last-child {
    border-right: none;
}

.tab-btn:hover {
    background-color: #1a4a82;
    transform: translateY(-1px);
}

.tab-btn.active {
    background-color: #e94560;
    color: white;
}

.tab-btn.active:hover {
    background-color: #c93a50;
    transform: translateY(0);
}

.tab-icon {
    font-size: 1.1em;
}

/* Contenido de las pestañas */
.tab-content {
    display: none;
    animation: fadeIn 0.3s ease-in;
}

.tab-content.active {
    display: block;
}

@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(10px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* Formulario */
.form-group {
    margin-bottom: 20px;
}

label {
    display: block;
    margin-bottom: 8px;
    font-weight: bold;
    color: #b0b0b0;
}

input[type="number"],
input[type="text"] {
    width: calc(100% - 20px);
    padding: 12px 10px;
    border: 1px solid #0f3460;
    border-radius: 8px;
    background-color: #0d1629;
    color: #e0e0e0;
    font-size: 1em;
    box-sizing: border-box;
    transition: border-color 0.3s ease;
}

input[type="number"]:focus,
input[type="text"]:focus {
    border-color: #e94560;
    outline: none;
}

/* Botones */
button {
    display: block;
    width: 100%;
    padding: 15px;
    background-color: #e94560;
    color: white;
    border: none;
    border-radius: 8px;
    font-size: 1.1em;
    font-weight: bold;
    cursor: pointer;
    transition: background-color 0.3s ease, transform 0.2s ease;
    margin-top: 25px;
}

button:hover {
    background-color: #ff6a80;
    transform: translateY(-2px);
}

button:active {
    background-color: #c93a50;
    transform: translateY(0);
}

/* Salida del serial */
#serialOutput {
    background-color: #0d1629;
    color: #72ef72;
    padding: 15px;
    border-radius: 8px;
    margin-top: 30px;
    text-align: center;
    font-family: 'Courier New', Courier, monospace;
    font-size: 1.2em;
    word-wrap: break-word;
    border: 1px dashed #0f3460;
    min-height: 50px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.copy-button-container {
    margin-top: 15px;
    text-align: center;
}

#copyButton {
    background-color: #0f3460;
    font-size: 0.95em;
    padding: 10px 15px;
    width: auto;
    display: inline-block;
}

#copyButton:hover {
    background-color: #1a4a82;
}

#copyButton.copied {
    background-color: #4CAF50;
}

/* Sección de decodificación */
.decoder-info {
    background-color: #0d1629;
    padding: 15px;
    border-radius: 8px;
    margin-bottom: 20px;
    border-left: 4px solid #72ef72;
}

.decoder-info p {
    margin: 0;
    color: #b0b0b0;
    font-size: 0.95em;
    line-height: 1.4;
}

#decoder-section {
    padding-top: 0;
    margin-top: 0;
    border-top: none;
}

#decodeButton {
    background-color: #0f3460;
    font-size: 0.95em;
    padding: 10px 15px;
    margin-top: 15px;
    width: 100%;
}

#decodeButton:hover {
    background-color: #1a4a82;
}

#dateOutput {
    background-color: #0d1629;
    color: #72ef72;
    padding: 15px;
    border-radius: 8px;
    margin-top: 15px;
    text-align: center;
    font-family: 'Courier New', Courier, monospace;
    font-size: 1.1em;
    word-wrap: break-word;
    border: 1px dashed #0f3460;
    min-height: 45px;
    display: flex;
    align-items: center;
    justify-content: center;
}

/* Responsive design */
@media (max-width: 768px) {
    .header {
        margin-top: 5px;
    }
    
    .container {
        padding: 20px 25px;
        padding-top: 45px; /* Espacio para los botones de idioma */
    }
    
    .language-selector {
        top: 10px;
        right: 15px;
    }
    
    .lang-btn {
        padding: 5px 8px;
        font-size: 0.75em;
    }
    
    h1 {
        font-size: 1.5em;
    }
    
    .tab-btn {
        padding: 12px 15px;
        font-size: 0.9em;
    }
    
    .tab-icon {
        font-size: 1em;
    }
    
    .tab-navigation {
        margin: 15px 0;
    }
}