/* Kontrolki wyboru trybu */
#mode-selection-container {
    padding: 20px;
    background: var(--secondary-bg-color);
    border-radius: 10px;
    margin-bottom: 25px;
}

.mode-btn {
    background: var(--primary-color);
    box-shadow: var(--primary-shadow);
}
.mode-btn.active {
    background-color: var(--primary-color-hover);
    transform: translateY(-2px);
}
.mode-btn.active:hover {
    background: var(--primary-color-hover);
}

/* Główny obszar nauki */
.learning-area {
    min-height: 250px;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    perspective: 1000px; /* For 3D flip effect */
}
.placeholder-text {
    font-size: 1.2rem;
    color: var(--text-color-light);
}

/* --- Przeglądanie --- */
.flashcard {
    width: 100%;
    height: 300px;
    position: relative;
    cursor: pointer;
    background: none;
    border-left: 5px solid var(--primary-color);
}
.flashcard-inner {
    position: relative;
    width: 100%;
    height: 100%;
    text-align: center;
    transition: transform 0.6s;
    transform-style: preserve-3d;
}
.flashcard.is-flipped .flashcard-inner {
    transform: rotateY(180deg);
}
.flashcard-front, .flashcard-back {
    position: absolute;
    width: 100%;
    height: 100%;
    -webkit-backface-visibility: hidden;
    backface-visibility: hidden;
    display: flex;
    justify-content: center;
    align-items: center;
    font-size: 2rem;
    padding: 1rem;
    color: var(--text-color);
    /* Wygląd dziedziczony z .learning-item poprzez ponowne użycie klas */
}
.flashcard-back {
    transform: rotateY(180deg);
}
.card-navigation {
    margin-top: 1.5rem;
    display: flex;
    gap: 1rem;
}

/* --- Wpisywanie --- */
.typing-container {
    width: 100%;
    max-width: 600px;
    display: flex;
    gap: 1rem;
    margin-top: 1.5rem;
}
.typing-input {
    flex-grow: 1;
    font-size: 1.2rem;
    padding: 0.8rem;
    background-color: var(--secondary-bg-color);
    color: var(--text-color);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius-sm);
}
.typing-input.correct {
    border-color: var(--success-color-hover);
    background-color: rgba(40, 167, 69, 0.1);
}
.typing-input.incorrect {
    border-color: var(--danger-color);
    background-color: rgba(220, 53, 69, 0.1);
}

/* --- Wiem/Nie wiem --- */
.know-buttons-container {
    margin-top: 1.5rem;
    display: flex;
    gap: 1.5rem;
}
.btn-know { 
    background-color: var(--success-color); 
    border-color: var(--success-color); 
}
.btn-know:hover:not(:disabled) {
    background-color: var(--success-color-hover);
}
.btn-dont-know { 
    background-color: var(--danger-color); 
    border-color: var(--danger-color); 
}
.btn-dont-know:hover:not(:disabled) {
    background-color: var(--danger-color-hover);
}

/* --- Progress Bar & Summary Modal --- */
.progress-container {
    margin-top: 1.5rem;
    color: var(--text-color);
}
#progress-text {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    display: flex;
    justify-content: center;
    align-items: center;
    font-size: 0.9rem;
    font-weight: bold;
    color: var(--primary-text-color);
    text-shadow: 1px 1px 2px rgba(0, 0, 0, 0.5);
    pointer-events: none;
}
.progress-bar-background {
    width: 100%;
    height: 24px;
    background-color: var(--tertiary-bg-color);
    border-radius: 5px;
    overflow: hidden;
    margin-bottom: 10px;
    position: relative;
}
.progress-bar-foreground {
    height: 100%;
    width: 0;
    background-color: var(--primary-color);
    border-radius: 5px;
    transition: width 0.3s ease-in-out;
}
.modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.7);
    display: flex;
    justify-content: center;
    align-items: center;
    z-index: 1000;
}
.modal-content {
    background-color: var(--bg-color);
    padding: 2rem;
    border-radius: 10px;
    max-width: 500px;
    width: 90%;
    text-align: center;
    border: 1px solid var(--border-color);
}
.modal-content h2 { 
    margin-top: 0; 
    color: var(--primary-color); 
}
#summary-stats { 
    font-size: 1.2rem; 
    margin: 1.5rem 0; 
}

#summary-stats .summary-correct {
    color: var(--success-color);
}
#summary-stats .summary-incorrect {
    color: var(--danger-color);
}