/* 1. Base del documento con Flexbox vertical */
html, body {
    height: 100%;
    margin: 0;
}

body {
    font-family: Arial, sans-serif;
    background-color: #f4f4f9;
    color: #333;
    display: flex;
    flex-direction: column; /* Alineación vertical para empujar el footer */
    min-height: 100vh;
    padding: 20px;
    box-sizing: border-box;
    position: relative;
}

/* 2. Contenedor principal (La tarjeta de la calculadora) */
.container {
    background: white;
    padding: 30px;
    border-radius: 8px;
    box-shadow: 0 4px 15px rgba(0,0,0,0.1);
    width: 100%;
    max-width: 440px;
    margin: auto auto 30px auto; /* Centra la tarjeta y deja margen abajo para el footer */
    box-sizing: border-box;
}

h1 {
    font-size: 22px;
    margin-top: 0;
    margin-bottom: 10px;
    color: #d00;
}

.description {
    font-size: 13px;
    color: #666;
    margin-bottom: 20px;
    line-height: 1.4;
}

.input-group {
    margin-bottom: 15px;
}

label {
    display: block;
    margin-bottom: 5px;
    font-weight: bold;
    font-size: 13px;
}

input {
    width: 100%;
    padding: 10px;
    border: 1px solid #ccc;
    border-radius: 4px;
    box-sizing: border-box;
    font-size: 14px;
}

input:focus {
    border-color: #d00;
    outline: none;
}

.help-text {
    font-size: 11px;
    color: #888;
    display: block;
    margin-top: 3px;
}

button {
    width: 100%;
    padding: 12px;
    background-color: #d00;
    color: white;
    border: none;
    border-radius: 4px;
    font-size: 15px;
    cursor: pointer;
    font-weight: bold;
    margin-top: 10px;
}

button:hover {
    background-color: #b00;
}

/* 3. Caja de Resultados (Crece dinámicamente) */
.result {
    margin-top: 25px;
    padding: 20px;
    background-color: #f8fff8;
    border: 1px solid #ccf0cc;
    border-radius: 6px;
    display: none;
}

.result h3 {
    margin: 0 0 5px 0;
    color: #2e7d32;
    font-size: 15px;
}

.net-salary-display {
    font-size: 24px;
    font-weight: bold;
    color: #2e7d32;
    margin: 0 0 15px 0;
    border-bottom: 2px solid #ccf0cc;
    padding-bottom: 10px;
}

/* Desglose */
.breakdown h4 {
    margin: 0 0 8px 0;
    font-size: 13px;
    color: #555;
}

.breakdown-item {
    display: flex;
    justify-content: space-between;
    font-size: 13px;
    margin-bottom: 6px;
    color: #666;
}

.breakdown-item:last-child {
    margin-bottom: 0;
}

/* 4. Selector de Idioma */
.lang-selector-container {
    position: absolute;
    top: 20px;
    right: 20px;
    display: flex;
    align-items: center;
    gap: 8px;
}

.select-label {
    font-size: 12px;
    font-weight: bold;
    color: #666;
}

.lang-dropdown {
    padding: 4px 8px;
    font-size: 12px;
    border: 1px solid #ccc;
    border-radius: 4px;
    background: white;
    cursor: pointer;
}

/* 5. Estilos del Footer Arreglados */
.main-footer {
    flex-shrink: 0; /* Evita que el footer colapse o se deforme */
    width: 100%;
    text-align: center;
    padding: 15px 0;
    margin-top: auto; /* Truco de Flexbox: empuja el footer al fondo si sobra pantalla */
}

.main-footer p {
    font-size: 13px;
    color: #777;
    margin: 0;
}

.main-footer a {
    color: #d00;
    text-decoration: none;
    font-weight: bold;
    transition: color 0.2s ease;
}

.main-footer a:hover {
    color: #b00;
    text-decoration: underline;
}

/* 6. Media Query para pantallas chicas (Celulares) */
@media (max-width: 480px) {
    body {
        padding: 15px;
        padding-top: 60px; /* Le da espacio al selector de idioma en la parte superior */
    }
    
    .container {
        margin-top: 10px;
        padding: 20px;
    }
    
    .lang-selector-container {
        right: 15px;
        top: 15px;
    }
}