/* ==========================================================================
   LINGUA SOUL - Exercise Styles
   CSS específico para ejercicios de listening y vocabulario con layout de 2 columnas
   ========================================================================== */

/* ==========================================================================
   LISTENING EXERCISES - Two Column Layout
   ========================================================================== */

.listening-container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--space-xl, 3rem);
    margin-top: var(--space-lg, 2rem);
}

.listening-audio-section {
    background: rgba(44, 62, 80, 0.4);
    border: 2px solid var(--theme-border, rgba(255, 107, 53, 0.3));
    border-radius: var(--radius-lg, 16px);
    padding: var(--space-xl, 3rem);
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: var(--space-lg, 2rem);
    position: sticky;
    top: var(--space-xl, 3rem);
    height: fit-content;
}

.listening-audio-title {
    font-size: 1.5rem;
    font-weight: 600;
    color: var(--theme-color, #ff6b35);
    text-align: center;
    margin-bottom: var(--space-md, 1.5rem);
}

.audio-player {
    width: 100%;
    max-width: 400px;
    padding: var(--space-lg, 2rem);
    background: rgba(26, 35, 50, 0.8);
    border-radius: var(--radius-lg, 16px);
    border: 2px solid var(--theme-border, rgba(255, 107, 53, 0.3));
}

.audio-player audio {
    width: 100%;
    filter: sepia(20%) saturate(70%) hue-rotate(0deg) brightness(95%);
}

.audio-instructions {
    text-align: center;
    color: var(--color-text-secondary, #e8eaed);
    font-size: 0.95rem;
    line-height: 1.6;
    padding: var(--space-md, 1.5rem);
    background: rgba(255, 107, 53, 0.1);
    border-radius: var(--radius-md, 12px);
    border: 1px solid var(--theme-border, rgba(255, 107, 53, 0.3));
}

.listening-questions-section {
    background: rgba(44, 62, 80, 0.3);
    border: 2px solid var(--theme-border, rgba(255, 107, 53, 0.3));
    border-radius: var(--radius-lg, 16px);
    padding: var(--space-xl, 3rem);
    display: flex;
    flex-direction: column;
    gap: var(--space-lg, 2rem);
}

.listening-question-title {
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--theme-color, #ff6b35);
    margin-bottom: var(--space-sm, 1rem);
}

.listening-question-item {
    background: rgba(26, 35, 50, 0.6);
    padding: var(--space-lg, 2rem);
    border-radius: var(--radius-md, 12px);
    border-left: 4px solid var(--theme-color, #ff6b35);
    transition: all var(--transition-base, 250ms ease);
}

.listening-question-item:hover {
    background: rgba(26, 35, 50, 0.8);
    transform: translateX(4px);
}

.listening-question-text {
    font-size: 1.05rem;
    color: var(--color-text-primary, #ffffff);
    margin-bottom: var(--space-md, 1.5rem);
    font-weight: 500;
}

.listening-input {
    width: 100%;
    padding: var(--space-md, 1.5rem);
    border: 2px solid rgba(255,255,255,0.2);
    border-radius: var(--radius-md, 12px);
    font-size: 1rem;
    outline: none;
    transition: all var(--transition-base, 250ms ease);
    font-family: inherit;
    background: rgba(30, 41, 59, 0.8);
    color: var(--color-text-primary, #ffffff);
}

.listening-input:focus {
    border-color: var(--theme-color, #ff6b35);
    box-shadow: 0 0 0 4px rgba(255, 107, 53, 0.2);
    background: rgba(30, 41, 59, 0.95);
}

.listening-input::placeholder {
    color: var(--color-text-muted, #a0a8b3);
}

/* Multiple Listening Exercises Side by Side */
.listening-dual-container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--space-xl, 3rem);
    margin-top: var(--space-lg, 2rem);
}

.listening-dual-item {
    background: rgba(44, 62, 80, 0.3);
    border: 2px solid var(--theme-border, rgba(255, 107, 53, 0.3));
    border-radius: var(--radius-lg, 16px);
    padding: var(--space-xl, 3rem);
}

.listening-dual-title {
    font-size: 1.5rem;
    font-weight: 600;
    color: var(--theme-color, #ff6b35);
    margin-bottom: var(--space-lg, 2rem);
    text-align: center;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-sm, 1rem);
}

/* ==========================================================================
   VOCABULARY EXERCISES - Two Column Layout
   ========================================================================== */

.vocabulary-dual-container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--space-xl, 3rem);
    margin-top: var(--space-lg, 2rem);
}

.vocabulary-dual-item {
    background: rgba(44, 62, 80, 0.3);
    border: 2px solid var(--theme-border, rgba(255, 107, 53, 0.3));
    border-radius: var(--radius-lg, 16px);
    padding: var(--space-xl, 3rem);
}

.vocabulary-dual-title {
    font-size: 1.5rem;
    font-weight: 600;
    color: var(--theme-color, #ff6b35);
    margin-bottom: var(--space-lg, 2rem);
    text-align: center;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-sm, 1rem);
}

.vocabulary-item {
    background: rgba(26, 35, 50, 0.6);
    padding: var(--space-lg, 2rem);
    border-radius: var(--radius-md, 12px);
    border-left: 4px solid var(--theme-color, #ff6b35);
    margin-bottom: var(--space-md, 1.5rem);
    transition: all var(--transition-base, 250ms ease);
}

.vocabulary-item:hover {
    background: rgba(26, 35, 50, 0.8);
    transform: translateX(4px);
}

.vocabulary-word {
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--theme-color, #ff6b35);
    margin-bottom: var(--space-sm, 1rem);
    display: flex;
    align-items: center;
    gap: var(--space-sm, 1rem);
}

.vocabulary-definition {
    font-size: 1rem;
    color: var(--color-text-secondary, #e8eaed);
    margin-bottom: var(--space-md, 1.5rem);
    line-height: 1.6;
}

.vocabulary-input {
    width: 100%;
    padding: var(--space-md, 1.5rem);
    border: 2px solid rgba(255,255,255,0.2);
    border-radius: var(--radius-md, 12px);
    font-size: 1rem;
    outline: none;
    transition: all var(--transition-base, 250ms ease);
    font-family: inherit;
    background: rgba(30, 41, 59, 0.8);
    color: var(--color-text-primary, #ffffff);
}

.vocabulary-input:focus {
    border-color: var(--theme-color, #ff6b35);
    box-shadow: 0 0 0 4px rgba(255, 107, 53, 0.2);
    background: rgba(30, 41, 59, 0.95);
}

.vocabulary-input::placeholder {
    color: var(--color-text-muted, #a0a8b3);
}

/* ==========================================================================
   RESPONSIVE DESIGN
   ========================================================================== */

@media (max-width: 1024px) {
    .listening-container,
    .listening-dual-container,
    .vocabulary-dual-container {
        grid-template-columns: 1fr;
        gap: var(--space-lg, 2rem);
    }

    .listening-audio-section {
        position: relative;
        top: 0;
    }
}

@media (max-width: 768px) {
    .listening-audio-section,
    .listening-questions-section,
    .listening-dual-item,
    .vocabulary-dual-item {
        padding: var(--space-lg, 2rem);
    }

    .audio-player {
        padding: var(--space-md, 1.5rem);
    }
}

@media (max-width: 480px) {
    .listening-audio-section,
    .listening-questions-section,
    .listening-dual-item,
    .vocabulary-dual-item {
        padding: var(--space-md, 1.5rem);
    }

    .listening-dual-title,
    .vocabulary-dual-title {
        font-size: 1.25rem;
    }
}