/* ==================== CUSTOM DECKS ==================== */

/* Decks List Page */
.decks-container {
    width: 100%;
    max-width: 500px;
}

.decks-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 24px;
    gap: 16px;
}

.decks-header h2 {
    font-size: 20px;
    font-weight: 600;
    color: #fafafa;
    flex: 1;
}

.create-deck-btn {
    padding: 8px 16px;
    border-radius: 8px;
    border: 1px solid #27272a;
    background: #18181b;
    color: #fafafa;
    font-size: 13px;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.15s ease;
    white-space: nowrap;
}

.create-deck-btn:hover {
    background: #27272a;
    border-color: #3f3f46;
}

/* Deck List */
.deck-list {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.deck-item {
    display: flex;
    align-items: center;
    gap: 16px;
    padding: 16px 20px;
    background: #18181b;
    border: 1px solid #27272a;
    border-radius: 12px;
    cursor: pointer;
    transition: all 0.15s ease;
}

.deck-item:hover {
    background: #1f1f23;
    border-color: #3f3f46;
    transform: translateY(-1px);
}

.deck-item-content {
    flex: 1;
    min-width: 0;
}

.deck-item-name {
    font-size: 16px;
    font-weight: 500;
    color: #fafafa;
    margin-bottom: 4px;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.deck-item-count {
    font-size: 13px;
    color: #71717a;
}

.deck-item-arrow {
    font-size: 18px;
    color: #52525b;
    flex-shrink: 0;
}

/* Empty State */
.decks-empty-state {
    text-align: center;
    padding: 60px 20px;
    color: #52525b;
}

.decks-empty-state p:first-child {
    font-size: 18px;
    color: #71717a;
    margin-bottom: 8px;
}

.decks-empty-state p:last-child {
    font-size: 14px;
}

/* ==================== DECK EDITOR ==================== */

#deck-editor-page {
    justify-content: flex-start;
    min-height: 0;
}

.deck-editor-container {
    width: 100%;
    max-width: 500px;
    flex: 1;
    min-height: 0;
    display: flex;
    flex-direction: column;
}

.deck-editor-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 24px;
    flex-shrink: 0;
}

.deck-editor-actions {
    display: flex;
    gap: 8px;
}

.header-btn.danger {
    color: #ef4444;
    border-color: rgba(239, 68, 68, 0.3);
}

.header-btn.danger:hover {
    background: rgba(239, 68, 68, 0.1);
    color: #ef4444;
}

.deck-name-input {
    width: 100%;
    padding: 14px 16px;
    border-radius: 12px;
    border: 1px solid #27272a;
    background: #18181b;
    color: #fafafa;
    font-size: 18px;
    font-weight: 600;
    outline: none;
    margin-bottom: 20px;
    transition: border-color 0.15s ease;
    flex-shrink: 0;
}

.deck-name-input:focus {
    border-color: #3f3f46;
}

.deck-name-input::placeholder {
    color: #52525b;
}

/* Card List */
.card-list {
    display: flex;
    flex-direction: column;
    gap: 8px;
    margin-bottom: 16px;
    flex: 1;
    min-height: 0;
    overflow-y: auto;
}

.card-item {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 12px 16px;
    background: #18181b;
    border: 1px solid #27272a;
    border-radius: 10px;
    transition: all 0.15s ease;
}

.card-item:hover {
    border-color: #3f3f46;
}

.card-item-content {
    flex: 1;
    min-width: 0;
    display: flex;
    gap: 8px;
    align-items: center;
}

.card-item-front {
    font-size: 14px;
    color: #fafafa;
    font-weight: 500;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
    flex: 1;
}

.card-item-separator {
    color: #3f3f46;
    font-size: 12px;
    flex-shrink: 0;
}

.card-item-back {
    font-size: 14px;
    color: #71717a;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
    flex: 1;
}

.card-item-actions {
    display: flex;
    gap: 4px;
    flex-shrink: 0;
}

.card-action-btn {
    width: 32px;
    height: 32px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: transparent;
    border: none;
    border-radius: 6px;
    color: #52525b;
    cursor: pointer;
    transition: all 0.15s ease;
    font-size: 14px;
}

.card-action-btn:hover {
    background: #27272a;
    color: #fafafa;
}

.card-action-btn.delete:hover {
    color: #ef4444;
}

.add-card-btn {
    width: 100%;
    padding: 14px;
    border-radius: 10px;
    border: 1px dashed #27272a;
    background: transparent;
    color: #71717a;
    font-size: 14px;
    cursor: pointer;
    transition: all 0.15s ease;
    margin-bottom: 16px;
    flex-shrink: 0;
}

.add-card-btn:hover {
    border-color: #3f3f46;
    color: #a1a1aa;
    background: #18181b;
}

/* Card Editor Modal */
.card-editor-field {
    margin-bottom: 16px;
}

.card-editor-field label {
    display: block;
    font-size: 13px;
    color: #a1a1aa;
    margin-bottom: 6px;
    font-weight: 500;
}

.card-editor-field textarea {
    width: 100%;
    padding: 12px;
    border-radius: 8px;
    border: 1px solid #27272a;
    background: #0f0f11;
    color: #fafafa;
    font-size: 14px;
    font-family: inherit;
    outline: none;
    resize: vertical;
    min-height: 80px;
    transition: border-color 0.15s ease;
}

.card-editor-field textarea:focus {
    border-color: #3f3f46;
}

.card-editor-field textarea::placeholder {
    color: #52525b;
}

/* ==================== CUSTOM PRACTICE ==================== */

.custom-practice-mode {
    position: absolute;
    left: 50%;
    transform: translateX(-50%);
    font-size: 14px;
    color: #71717a;
}

/* Custom Flashcard */
.custom-flashcard {
    min-height: 200px;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 16px;
}

.custom-card-front {
    font-size: 28px;
    font-weight: 600;
    color: #fafafa;
    text-align: center;
    word-break: break-word;
}

.custom-card-back {
    font-size: 22px;
    color: #a1a1aa;
    text-align: center;
    word-break: break-word;
    padding-top: 16px;
    border-top: 1px solid #27272a;
    width: 100%;
}

.custom-card-back.hidden {
    display: none;
}

/* Flip Mode Buttons */
.custom-flip-buttons {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 10px;
    margin-top: 12px;
}

.custom-flip-buttons.hidden {
    display: none;
}

.custom-flip-btn {
    padding: 16px;
    border-radius: 12px;
    border: none;
    font-size: 14px;
    font-weight: 600;
    cursor: pointer;
    transition: opacity 0.15s ease;
}

.custom-flip-btn.knew {
    background: #22c55e;
    color: #09090b;
}

.custom-flip-btn.didnt-know {
    background: #ef4444;
    color: #fafafa;
}

.custom-flip-btn:hover {
    opacity: 0.9;
}

/* End Summary */
.custom-end-summary {
    text-align: center;
    padding: 20px 0;
}

.custom-end-summary.hidden {
    display: none;
}

.custom-end-summary h3 {
    font-size: 24px;
    font-weight: 600;
    color: #fafafa;
    margin-bottom: 20px;
}

.custom-end-stats {
    display: flex;
    justify-content: center;
    gap: 32px;
    margin-bottom: 24px;
}

.custom-end-stat {
    text-align: center;
}

.custom-end-stat-value {
    font-size: 32px;
    font-weight: 700;
    font-variant-numeric: tabular-nums;
}

.custom-end-stat-value.correct-val {
    color: #22c55e;
}

.custom-end-stat-value.incorrect {
    color: #ef4444;
}

.custom-end-stat-label {
    font-size: 12px;
    color: #71717a;
    text-transform: uppercase;
    margin-top: 4px;
}

/* Practice Mode Selection Modal */
#deck-practice-modal .modal {
    max-width: 440px;
}

.practice-mode-options {
    display: flex;
    flex-direction: column;
    gap: 14px;
    margin-bottom: 16px;
}

.practice-mode-option {
    display: flex;
    align-items: center;
    gap: 18px;
    padding: 20px;
    background: #18181b;
    border: 1px solid #27272a;
    border-radius: 12px;
    cursor: pointer;
    transition: all 0.15s ease;
    text-align: left;
    width: 100%;
}

.practice-mode-option:hover {
    background: #1f1f23;
    border-color: #3f3f46;
}

.practice-mode-option:disabled {
    opacity: 0.4;
    cursor: not-allowed;
}

.practice-mode-option:disabled:hover {
    background: #18181b;
    border-color: #27272a;
}

.mode-option-icon {
    width: 44px;
    height: 44px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: #27272a;
    border-radius: 10px;
    font-size: 20px;
    flex-shrink: 0;
    color: #fafafa;
}

.mode-option-text {
    flex: 1;
}

.mode-option-title {
    font-size: 15px;
    font-weight: 600;
    color: #fafafa;
    margin-bottom: 2px;
}

.mode-option-desc {
    font-size: 13px;
    color: #71717a;
}

/* MC mode choices - reuse radicals-choices styles */

/* Deck practice stats that are hidden by default */
#custom-flip-stats.hidden,
#custom-mc-stats.hidden,
#custom-flip-controls.hidden,
#custom-mc-choices.hidden,
#custom-mc-next.hidden,
#custom-flashcard.hidden {
    display: none;
}