/* --- Variables de Color y Tipografía --- */
:root {
    --bg-color: #1a2a33;
    --primary-container: #1f3641;
    --accent-color-1: #31c3bd; /* Turquesa */
    --accent-color-2: #f2b137; /* Amarillo */
    --text-color-light: #dbe8ed;
    --text-color-dark: #1a2a33;
    --success-color: #28a745;
    --error-color: #dc3545;
    --font-family: 'Poppins', sans-serif;
}

/* --- Estilos Generales del Body --- */
body {
    background-color: var(--bg-color);
    color: var(--text-color-light);
    font-family: var(--font-family);
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 100vh;
    margin: 0;
    padding: 20px;
    box-sizing: border-box;
}

/* --- Contenedor Principal --- */
.main-container {
    width: 100%;
    max-width: 600px;
    text-align: center;
}

/* --- Pantalla de Selección de Nivel --- */
#level-selection-screen h1 {
    color: var(--accent-color-1);
    font-size: 2.5em;
    margin-bottom: 10px;
}

.level-buttons {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(120px, 1fr));
    gap: 15px;
    margin-top: 30px;
}

.level-btn {
    background-color: var(--primary-container);
    color: var(--text-color-light);
    border: none;
    padding: 15px 20px;
    border-radius: 10px;
    font-size: 1.2em;
    font-weight: bold;
    cursor: pointer;
    transition: background-color 0.3s, transform 0.2s;
    box-shadow: 0 4px 0 #10212a;
}

.level-btn:hover {
    background-color: var(--accent-color-1);
    color: var(--text-color-dark);
    transform: translateY(-2px);
}

/* --- Pantalla de Juego --- */
.game-header {
    display: flex;
    justify-content: space-around;
    align-items: center;
    background-color: var(--primary-container);
    padding: 10px;
    border-radius: 10px;
    margin-bottom: 20px;
}

.stat-item {
    font-size: 1.1em;
    font-weight: bold;
}

.stat-item span {
    color: var(--accent-color-2);
    font-size: 1.3em;
    margin-left: 5px;
}

/* --- Área de Juego (Imágenes y Palabras) --- */
#game-area {
    background-color: var(--primary-container);
    padding: 20px;
    border-radius: 10px;
    min-height: 400px;
    display: flex;
    justify-content: center;
    align-items: center;
}

/* Fase 1: Mostrar Imágenes */
#image-display-area {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    align-items: center;
    gap: 15px;
}

.game-image {
    width: 120px;
    height: 120px;
    object-fit: cover;
    border-radius: 10px;
    border: 3px solid var(--text-color-light);
}

/* Fase 2: Seleccionar Palabras */
#word-selection-area {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 10px;
}

.word-tile {
    background-color: var(--text-color-light);
    color: var(--text-color-dark);
    padding: 12px 20px;
    border-radius: 8px;
    font-size: 1.1em;
    font-weight: bold;
    cursor: pointer;
    transition: background-color 0.3s, color 0.3s, transform 0.2s;
    user-select: none; /* Evita que el texto se seleccione al hacer clic */
}

.word-tile:hover {
    transform: scale(1.05);
}

.word-tile.correct {
    background-color: var(--success-color);
    color: white;
    pointer-events: none; /* Desactiva clics adicionales */
}

.word-tile.incorrect {
    background-color: var(--error-color);
    color: white;
    pointer-events: none;
}

/* --- Overlay de Cuenta Regresiva --- */
#countdown-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.8);
    display: flex;
    justify-content: center;
    align-items: center;
    z-index: 2000;
}

#countdown-text {
    font-size: 10em;
    font-weight: bold;
    color: var(--accent-color-2);
    animation: countdown-tick 1s ease-in-out forwards;
}

@keyframes countdown-tick {
    0% { transform: scale(1.5); opacity: 0; }
    100% { transform: scale(1); opacity: 1; }
}

/* --- Modal de Fin de Juego --- */
#modal {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.8);
    display: flex;
    justify-content: center;
    align-items: center;
    z-index: 1000;
}

.modal-content {
    background-color: var(--primary-container);
    padding: 30px 40px;
    border-radius: 15px;
    text-align: center;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.5);
}

#modal-message {
    font-size: 2em;
    font-weight: bold;
    margin-bottom: 20px;
}

.modal-buttons {
    display: flex;
    gap: 15px;
    justify-content: center;
}

.modal-btn {
    padding: 12px 25px;
    border: none;
    border-radius: 8px;
    font-size: 1em;
    font-weight: bold;
    cursor: pointer;
    transition: opacity 0.2s;
}

#modal-action-btn {
    background-color: var(--accent-color-1);
    color: var(--text-color-dark);
}

#back-to-menu-btn {
    background-color: var(--text-color-light);
    color: var(--text-color-dark);
}

.modal-btn:hover {
    opacity: 0.9;
}

/* --- Clase Utilitaria --- */
.hidden {
    display: none !important;
}