/**
 * Create Flashcard Deck — dedicated layout (#createFlashcardDeckPage)
 */
body.app-dashboard-home #createFlashcardDeckPage {
    color-scheme: dark;
}

body.app-dashboard-home #createFlashcardDeckPage:not(.hidden) {
    background: #000000;
    min-height: calc(100vh - 56px);
    padding: clamp(0.75rem, 3vw, 1.5rem) clamp(0.75rem, 2.5vw, 1.25rem) 2.5rem;
    box-sizing: border-box;
}

body.app-dashboard-home #createFlashcardDeckPage:not(.hidden) .create-flashcard-deck-container {
    max-width: 920px;
    margin: 0 auto;
    padding: 0;
}

.cfd-shell {
    position: relative;
}

.cfd-sr-only {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    border: 0;
}

.cfd-hidden {
    position: absolute;
    width: 0;
    height: 0;
    opacity: 0;
    pointer-events: none;
}

/* Header */
.cfd-header {
    margin-bottom: 1rem;
}

.cfd-header-row {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 0.75rem;
    margin-bottom: 0.35rem;
}

.cfd-title-input {
    flex: 1 1 220px;
    min-width: 0;
    padding: 0.65rem 1rem;
    font-size: 1.25rem;
    font-weight: 700;
    letter-spacing: -0.02em;
    color: #f8fafc;
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(255, 255, 255, 0.12);
    border-radius: 12px;
    box-shadow: 0 4px 24px rgba(0, 0, 0, 0.35);
}

.cfd-title-input::placeholder {
    color: #64748b;
    font-weight: 600;
}

.cfd-title-input:focus {
    outline: none;
    border-color: rgba(61, 214, 140, 0.5);
    box-shadow: 0 0 0 3px rgba(61, 214, 140, 0.12), 0 8px 32px rgba(0, 0, 0, 0.4);
}

.cfd-btn-save {
    flex-shrink: 0;
    padding: 0.6rem 1.25rem;
    font-size: 0.9rem;
    font-weight: 700;
    color: #041208;
    background: linear-gradient(135deg, #2eb574 0%, #3dd68c 100%);
    border: 1px solid rgba(61, 214, 140, 0.45);
    border-radius: 10px;
    cursor: pointer;
    box-shadow: 0 4px 20px rgba(61, 214, 140, 0.22);
    transition: filter 0.15s ease, transform 0.1s ease;
}

.cfd-btn-save:hover:not(:disabled) {
    filter: brightness(1.06);
}

.cfd-btn-save:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

.cfd-tagline {
    margin: 0;
    font-size: 0.78rem;
    color: #64748b;
}

.cfd-tagline kbd {
    display: inline-block;
    padding: 0.1rem 0.35rem;
    font-size: 0.72rem;
    font-family: inherit;
    background: rgba(255, 255, 255, 0.08);
    border: 1px solid rgba(255, 255, 255, 0.12);
    border-radius: 4px;
    color: #94a3b8;
}

/* Info card */
.cfd-info-card {
    padding: 1rem 1.1rem;
    margin-bottom: 1rem;
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid rgba(255, 255, 255, 0.08);
    border-radius: 14px;
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.25);
}

.cfd-info-row {
    display: grid;
    grid-template-columns: auto 1fr auto 1fr;
    align-items: center;
    gap: 0.5rem 0.75rem;
    margin-bottom: 0.65rem;
}

.cfd-info-row--desc {
    grid-template-columns: auto 1fr;
    margin-bottom: 0;
}

.cfd-info-label {
    font-size: 0.72rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.06em;
    color: #64748b;
}

.cfd-info-select,
.cfd-info-input {
    padding: 0.45rem 0.65rem;
    font-size: 0.85rem;
    color: #e2e8f0;
    background: rgba(0, 0, 0, 0.35);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 8px;
}

.cfd-info-select:focus,
.cfd-info-input:focus {
    outline: none;
    border-color: rgba(61, 214, 140, 0.45);
}

.cfd-info-textarea {
    width: 100%;
    padding: 0.5rem 0.65rem;
    font-size: 0.85rem;
    color: #e2e8f0;
    background: rgba(0, 0, 0, 0.35);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 8px;
    resize: vertical;
    min-height: 2.75rem;
}

.cfd-info-textarea:focus {
    outline: none;
    border-color: rgba(61, 214, 140, 0.45);
}

@media (max-width: 600px) {
    .cfd-info-row {
        grid-template-columns: 1fr 1fr;
    }
    .cfd-info-label {
        grid-column: 1 / -1;
    }
}

/* Gamify */
.cfd-gamify {
    margin-bottom: 1rem;
    padding: 0.85rem 1rem;
    background: rgba(61, 214, 140, 0.06);
    border: 1px solid rgba(61, 214, 140, 0.15);
    border-radius: 12px;
}

.cfd-gamify-top {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    justify-content: space-between;
    gap: 0.5rem;
    margin-bottom: 0.5rem;
}

.cfd-count-badge {
    font-size: 0.88rem;
    font-weight: 700;
    color: #f1f5f9;
}

.cfd-xp-pill {
    font-size: 0.75rem;
    font-weight: 600;
    color: #86efac;
    padding: 0.2rem 0.55rem;
    background: rgba(61, 214, 140, 0.12);
    border-radius: 999px;
    border: 1px solid rgba(61, 214, 140, 0.25);
}

.cfd-progress-track {
    height: 6px;
    border-radius: 999px;
    background: rgba(255, 255, 255, 0.08);
    overflow: hidden;
}

.cfd-progress-fill {
    height: 100%;
    width: 0%;
    border-radius: 999px;
    background: linear-gradient(90deg, #2eb574, #3dd68c);
    transition: width 0.35s ease;
    box-shadow: 0 0 12px rgba(61, 214, 140, 0.4);
}

.cfd-progress-label {
    margin: 0.45rem 0 0;
    font-size: 0.78rem;
    color: #94a3b8;
}

/* Secondary actions */
.cfd-secondary-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
    margin-bottom: 1rem;
}

.cfd-btn-ghost {
    padding: 0.4rem 0.85rem;
    font-size: 0.8rem;
    font-weight: 600;
    color: #94a3b8;
    background: transparent;
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 8px;
    cursor: pointer;
    transition: color 0.15s, border-color 0.15s, background 0.15s;
}

.cfd-btn-ghost:hover {
    color: #e2e8f0;
    border-color: rgba(255, 255, 255, 0.18);
    background: rgba(255, 255, 255, 0.04);
}

.cfd-btn-ghost--accent {
    color: #6ee7b7;
    border-color: rgba(61, 214, 140, 0.28);
}

.cfd-btn-ghost--accent:hover {
    color: #bbf7d0;
    border-color: rgba(61, 214, 140, 0.45);
    background: rgba(61, 214, 140, 0.08);
}

/* Composer */
.cfd-composer-card {
    padding: 1.15rem 1.2rem 1rem;
    margin-bottom: 1.25rem;
    background: rgba(255, 255, 255, 0.04);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 16px;
    box-shadow: 0 12px 40px rgba(0, 0, 0, 0.35);
}

.cfd-composer-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1rem;
}

@media (max-width: 700px) {
    .cfd-composer-grid {
        grid-template-columns: 1fr;
    }
}

.cfd-field-label {
    display: block;
    margin-bottom: 0.35rem;
    font-size: 0.72rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    color: #64748b;
}

.cfd-field-input {
    width: 100%;
    box-sizing: border-box;
    padding: 0.75rem 0.9rem;
    font-size: 0.95rem;
    line-height: 1.45;
    color: #f1f5f9;
    background: rgba(0, 0, 0, 0.45);
    border: 1px solid rgba(255, 255, 255, 0.12);
    border-radius: 12px;
    resize: vertical;
    min-height: 7rem;
    transition: border-color 0.15s, box-shadow 0.15s;
}

.cfd-field-input::placeholder {
    color: #475569;
}

.cfd-field-input:focus {
    outline: none;
    border-color: rgba(61, 214, 140, 0.55);
    box-shadow: 0 0 0 3px rgba(61, 214, 140, 0.12);
}

.cfd-key-hint {
    margin: 0.65rem 0 0;
    font-size: 0.72rem;
    color: #64748b;
}

/* List */
.cfd-list-section {
    margin-top: 0.5rem;
}

.cfd-list-heading {
    margin: 0 0 0.65rem;
    font-size: 0.85rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.06em;
    color: #94a3b8;
}

.cfd-list-count {
    font-weight: 600;
    color: #64748b;
}

.cfd-card-list {
    list-style: none;
    margin: 0;
    padding: 0;
    display: flex;
    flex-direction: column;
    gap: 0.6rem;
}

.cfd-card-list li {
    display: grid;
    grid-template-columns: 1fr 1fr auto;
    gap: 0.65rem 0.75rem;
    align-items: start;
    padding: 0.85rem 1rem;
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid rgba(255, 255, 255, 0.08);
    border-radius: 12px;
    box-shadow: 0 4px 16px rgba(0, 0, 0, 0.2);
}

@media (max-width: 640px) {
    .cfd-card-list li {
        grid-template-columns: 1fr;
    }
    .cfd-card-actions {
        justify-content: flex-end;
    }
}

.cfd-card-front,
.cfd-card-back {
    font-size: 0.88rem;
    line-height: 1.45;
    color: #e2e8f0;
    word-break: break-word;
}

.cfd-label {
    display: block;
    margin-bottom: 0.2rem;
    font-size: 0.65rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.06em;
    color: #64748b;
}

.cfd-card-actions {
    display: flex;
    gap: 0.35rem;
    flex-shrink: 0;
}

.cfd-card-actions button {
    padding: 0.3rem 0.55rem;
    font-size: 0.75rem;
    font-weight: 600;
    border-radius: 6px;
    cursor: pointer;
    border: 1px solid transparent;
}

.cfd-btn-edit {
    color: #7dd3fc;
    background: rgba(56, 189, 248, 0.1);
    border-color: rgba(56, 189, 248, 0.25);
}

.cfd-btn-edit:hover {
    background: rgba(56, 189, 248, 0.18);
}

.cfd-btn-del {
    color: #fca5a5;
    background: rgba(239, 68, 68, 0.1);
    border-color: rgba(239, 68, 68, 0.25);
}

.cfd-btn-del:hover {
    background: rgba(239, 68, 68, 0.18);
}

.cfd-list-empty {
    margin: 0;
    padding: 1rem;
    text-align: center;
    font-size: 0.85rem;
    color: #64748b;
    border: 1px dashed rgba(255, 255, 255, 0.12);
    border-radius: 12px;
}

.cfd-list-empty.hidden {
    display: none;
}

/* Modals */
.cfd-modal {
    position: fixed;
    inset: 0;
    z-index: 12000;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 1rem;
    isolation: isolate;
}

.cfd-modal.hidden {
    display: none;
}

.cfd-modal-backdrop {
    position: absolute;
    inset: 0;
    z-index: 0;
    background: rgba(0, 0, 0, 0.65);
    backdrop-filter: blur(4px);
}

.cfd-modal-panel {
    position: relative;
    z-index: 1;
    width: 100%;
    max-width: 480px;
    max-height: 90vh;
    overflow: auto;
    padding: 1.25rem 1.35rem;
    background: #0c0f0e;
    border: 1px solid rgba(61, 214, 140, 0.2);
    border-radius: 14px;
    box-shadow: 0 24px 64px rgba(0, 0, 0, 0.55);
}

.cfd-modal-title {
    margin: 0 0 0.35rem;
    font-size: 1.1rem;
    color: #f1f5f9;
}

.cfd-modal-lead {
    margin: 0 0 0.85rem;
    font-size: 0.82rem;
    color: #94a3b8;
    line-height: 1.45;
}

.cfd-modal-lead code {
    font-size: 0.78rem;
    padding: 0.1rem 0.35rem;
    background: rgba(255, 255, 255, 0.06);
    border-radius: 4px;
    color: #86efac;
}

.cfd-modal-label {
    display: block;
    margin-bottom: 0.35rem;
    font-size: 0.75rem;
    font-weight: 600;
    color: #94a3b8;
}

.cfd-modal-textarea,
.cfd-modal-input,
.cfd-modal-num {
    width: 100%;
    box-sizing: border-box;
    margin-bottom: 0.75rem;
    padding: 0.6rem 0.75rem;
    font-size: 0.88rem;
    color: #e2e8f0;
    background: rgba(0, 0, 0, 0.4);
    border: 1px solid rgba(255, 255, 255, 0.12);
    border-radius: 8px;
}

.cfd-modal-textarea {
    min-height: 8rem;
    resize: vertical;
}

.cfd-modal-num {
    max-width: 100px;
    margin-bottom: 0.75rem;
}

.cfd-modal-row {
    margin-bottom: 0.25rem;
}

.cfd-modal-error {
    margin: 0 0 0.75rem;
    font-size: 0.82rem;
    color: #fca5a5;
}

.cfd-modal-error.hidden {
    display: none;
}

.cfd-modal-actions {
    display: flex;
    flex-wrap: wrap;
    justify-content: flex-end;
    gap: 0.5rem;
    margin-top: 0.5rem;
}

.cfd-btn-save--inline {
    padding: 0.45rem 1rem;
    font-size: 0.85rem;
}

/* Success */
body.app-dashboard-home #createFlashcardDeckPage .cfd-success-screen:not(.hidden) {
    position: relative;
    background: #000;
    min-height: 50vh;
    padding: 2rem 1rem;
    margin-top: 1rem;
    border-radius: 16px;
    border: 1px solid rgba(61, 214, 140, 0.15);
}

body.app-dashboard-home #createFlashcardDeckPage .cfd-success-inner h2 {
    color: #f1f5f9;
}

body.app-dashboard-home #createFlashcardDeckPage .cfd-success-inner p {
    color: #94a3b8;
}

.cfd-success-actions {
    gap: 0.65rem;
}

.cfd-success-primary {
    background: linear-gradient(135deg, #2eb574 0%, #3dd68c 100%) !important;
    color: #041208 !important;
    font-weight: 700 !important;
    border: 1px solid rgba(61, 214, 140, 0.45) !important;
}

.cfd-success-secondary {
    background: rgba(255, 255, 255, 0.06) !important;
    border: 1px solid rgba(255, 255, 255, 0.15) !important;
    color: #e2e8f0 !important;
}

body.app-dashboard-home #createFlashcardDeckPage #cfdMainPanel.hidden {
    display: none !important;
}