:root {
    --blue-g: #6A67CE;
    --red-o1: #FF6B8B;
    --yellow-o2: #FFD166;
    --green-g: #1EA896;
    --violet-e: #9D4EDD;

    /* Colores de texto */
    --text-primary: #2d3436;
    --text-secondary: #636e72;
    --text-tertiary: #b2bec3;

    /* Fondos */
    --bg-primary: #ffffff;
    --bg-secondary: #f5f6fa;
    --bg-hover: #eaecef;

    /* Bordes */
    --border-primary: #dfe6e9;
    --border-secondary: #b2bec3;

    /* Estados */
    --color-focus: #6c5ce7;
    --color-success: var(--google-green);
    --color-warning: #ffeaa7;
    --color-error: var(--google-red);

    /* Banner de advertencia */
    --warning-bg: #fff8e1;
    --warning-text: #8d6e63;
    --warning-border: #ffe082;
}

*,
*:before,
*:after {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

/* BODY */
body {
    font-family: 'Google Sans', sans-serif;
    background-color: var(--bg-secondary);
    color: var(--text-primary);
    line-height: 1.5;
}

/* CONTENEDOR PRINCIPAL */
.container {
    max-width: 1200px;
    margin: 0 auto;
    background: var(--bg-primary);
    min-height: 100vh;
}

/* HEADER */
.header {
    border-bottom: 1px solid var(--border-primary);
    padding: 16px 24px;
}

.header-content {
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.logo {
    display: flex;
    align-items: center;
    font-size: 22px;
    font-weight: 400;
}

/* Logo de 'Google' */
.g {
    color: var(--blue-g);
}

.o1 {
    color: var(--red-o1);
}

.o2 {
    color: var(--yellow-o2);
}

.g {
    color: var(--green-g);
}

.e {
    color: var(--violet-e);
}

.traductor {
    color: var(--text-primary);
    margin-left: 4px;
}

/* BOTONES / ICONOS */
.icon-button {
    display: flex;
    align-items: center;
    justify-content: center;
    border: none;
    background: none;
    cursor: pointer;
    color: var(--text-secondary);
    border-radius: 50%;
    transition: background-color 0.2s, transform 0.2s;
    padding: 6px;
}

.icon-button:hover {
    background: var(--bg-hover);
}

.icon-button:active {
    transform: scale(0.9);
}

/* SELECCIÓN DE IDIOMAS */
.language-selection {
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 24px;
    gap: 16px;
}

.source-language,
.target-language {
    flex: 1;
    max-width: 200px;
}

select {
    width: 100%;
    padding: 12px 16px;
    border-radius: 8px;
    border: 1px solid var(--border-secondary);
    font-size: 14px;
    color: var(--text-primary);
    cursor: pointer;
    transition: border-color 0.2s, box-shadow 0.2s;
}

select:hover {
    border-color: var(--text-secondary);
}

select:focus {
    outline: none;
    border-color: var(--google-blue);
    box-shadow: 0 0 0 1px var(--google-blue);
}

/* ÁREA DE TRADUCCIÓN*/
.translation-area {
    display: flex;
    height: 250px;
    border-top: 1px solid var(--border-primary);
}

.input-section,
.output-section {
    flex: 1;
    display: flex;
    flex-direction: column;
}

.input-section {
    border-right: 1px solid var(--border-primary);
}

/* TEXTAREAS */
.textarea-container {
    flex: 1;
    display: flex;
    flex-direction: column;
    position: relative;
}

#inputText {
    flex: 1;
    border: none;
    padding: 24px;
    font: inherit;
    resize: none;
    outline: none;
    font-size: 18px;
}

#inputText::placeholder {
    color: var(--text-secondary);
}

#outputText {
    flex: 1;
    padding: 24px;
    font-size: 18px;
    color: var(--text-primary);
    background-color: var(--bg-secondary);
    overflow-y: auto;
}

#outputText:empty::before {
    content: "Traducción";
    color: var(--text-secondary);
}

/* CONTROLES */
.input-controls,
.output-controls {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 12px;
    border-block: 1px solid var(--border-primary);
}

.output-controls {
    background-color: var(--bg-secondary);
}

/* ADVERTENCIA API */
.api-warning {
    background: var(--warning-bg);
    color: var(--warning-text);
    padding: 12px;
    margin: 12px 24px;
    border-radius: 8px;
    border: 1px solid var(--warning-border);
    font-size: 14px;
    text-align: center;
}