/* Enhanced Features CSS */

/* ===== Quick Add Modal ===== */
.quick-add-overlay {
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.45);
    z-index: 2000;
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.15s ease, visibility 0.15s ease;
}

.quick-add-overlay.is-open {
    opacity: 1;
    visibility: visible;
}

.quick-add-modal {
    background: var(--background-primary);
    border: 1px solid var(--border-primary);
    width: min(480px, 92vw);
    max-height: 90vh;
    overflow-y: auto;
    display: flex;
    flex-direction: column;
    transform: scale(0.98) translateY(6px);
    opacity: 0;
    transition: transform 0.15s ease, opacity 0.15s ease;
}

.quick-add-overlay.is-open .quick-add-modal {
    transform: scale(1) translateY(0);
    opacity: 1;
}

.quick-add-modal-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 0.75rem;
    padding: 0.65rem 1rem;
    border-bottom: 1px solid var(--border-primary);
    background: var(--background-secondary);
    flex-shrink: 0;
}

.quick-add-modal-title {
    font-size: var(--font-size-text);
    font-weight: var(--font-weight-semibold);
    color: var(--text-primary);
}

.quick-add-modal-header-actions {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    flex-shrink: 0;
}

.quick-add-form {
    display: flex;
    flex-direction: column;
}

.quick-add-section {
    padding: 0.65rem 1rem;
    border-bottom: 1px solid var(--border-primary);
    display: flex;
    flex-direction: column;
    gap: 0.3rem;
}

.quick-add-section:last-child {
    border-bottom: none;
}

.quick-add-section-row {
    flex-direction: row;
    gap: 0.75rem;
    align-items: flex-end;
}

.quick-add-section-col {
    display: flex;
    flex-direction: column;
    gap: 0.3rem;
    flex: 1;
    min-width: 0;
}

.quick-add-section-col-narrow {
    flex: 0 0 7ch;
}

.quick-add-label {
    font-size: var(--font-size-controls);
    color: var(--text-secondary);
    font-weight: var(--font-weight-semibold);
    display: block;
}

.quick-add-input {
    width: 100%;
    padding: 0.38rem 0.5rem;
    border: 1px solid var(--border-primary);
    background: var(--background-primary);
    color: var(--text-primary);
    font-family: inherit;
    font-size: var(--font-size-text);
    transition: border-color 0.15s ease;
    box-sizing: border-box;
}

.quick-add-input:focus {
    outline: none;
    border-color: var(--text-secondary);
}

.quick-add-input[type="file"] {
    font-size: var(--font-size-controls);
    padding: 0.25rem 0.4rem;
    cursor: pointer;
}

textarea.quick-add-input {
    resize: vertical;
    min-height: 3.5rem;
    line-height: 1.5;
    font-family: inherit;
}

.quick-add-url-row {
    display: flex;
    gap: 0.4rem;
    align-items: center;
}

.quick-add-url-row .quick-add-input {
    flex: 1;
    min-width: 0;
}

.quick-add-icon-row {
    display: flex;
    gap: 0.4rem;
    align-items: center;
}

.quick-add-icon-preview {
    width: 2rem;
    height: 2rem;
    border: 1px solid var(--border-primary);
    background: var(--background-secondary);
    display: inline-flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
    flex-shrink: 0;
    color: var(--text-tertiary);
}

.quick-add-icon-preview img {
    width: 100%;
    height: 100%;
    object-fit: contain;
    display: block;
}

.quick-add-icon-preview-empty {
    font-size: 0.7rem;
    line-height: 1;
}

.quick-add-icon-row .quick-add-input {
    flex: 1;
    min-width: 0;
}

.quick-add-icon-clear {
    flex-shrink: 0;
    width: 1.4rem;
    height: 1.4rem;
    padding: 0;
    border: 1px solid var(--border-primary);
    background: transparent;
    color: var(--text-tertiary);
    border-radius: 3px;
    font-size: 0.65rem;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: color 120ms ease, border-color 120ms ease;
}

.quick-add-icon-clear:hover {
    color: var(--accent-error);
    border-color: var(--accent-error);
}

.quick-add-icon-clear[hidden] {
    display: none;
}

.quick-add-icon-state {
    font-size: var(--font-size-controls);
    color: var(--text-tertiary);
    min-height: 1em;
    padding-top: 0.1rem;
}

.quick-add-icon-preview.is-fetching {
    position: relative;
}

.quick-add-icon-preview.is-fetching::after {
    content: '';
    position: absolute;
    inset: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    width: 1rem;
    height: 1rem;
    margin: auto;
    border: 2px solid var(--text-tertiary);
    border-top-color: transparent;
    border-radius: 50%;
    animation: btnSpinnerRotate 0.65s linear infinite;
}

.quick-add-footer {
    display: flex;
    gap: 0.5rem;
    justify-content: flex-end;
    padding: 0.65rem 1rem;
    border-top: 1px solid var(--border-primary);
    background: var(--background-secondary);
    flex-shrink: 0;
}

kbd {
    background: var(--background-primary);
    border: 1px solid var(--border-primary);
    border-radius: 4px;
    padding: 4px 8px;
    font-family: monospace;
    font-size: 12px;
    color: var(--text-primary);
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
    white-space: nowrap;
}


/* ===== Settings Controls ===== */
.control-slider {
    display: flex;
    align-items: center;
    gap: 15px;
    padding: 12px 0;
}

.control-slider label {
    min-width: 150px;
    font-size: 14px;
    color: var(--text-primary);
}

.slider-input {
    flex: 1;
    height: 8px;
    border: 1px solid var(--border-primary);
    border-radius: 999px;
    background: linear-gradient(
        to right,
        var(--accent-success) 0%,
        var(--accent-success) var(--slider-fill, 100%),
        var(--background-secondary) var(--slider-fill, 100%),
        var(--background-secondary) 100%
    );
    outline: none;
    -webkit-appearance: none;
    appearance: none;
    transition: box-shadow 0.2s ease, border-color 0.2s ease;
}

.slider-input::-webkit-slider-thumb {
    -webkit-appearance: none;
    appearance: none;
    width: 18px;
    height: 18px;
    background: var(--text-primary);
    cursor: pointer;
    border-radius: 50%;
    border: 2px solid var(--background-primary);
    box-shadow:
        0 0 0 2px color-mix(in srgb, var(--accent-success) 45%, transparent),
        0 2px 4px rgba(0, 0, 0, 0.25);
}

.slider-input::-moz-range-thumb {
    width: 18px;
    height: 18px;
    background: var(--text-primary);
    cursor: pointer;
    border-radius: 50%;
    border: 2px solid var(--background-primary);
    box-shadow:
        0 0 0 2px color-mix(in srgb, var(--accent-success) 45%, transparent),
        0 2px 4px rgba(0, 0, 0, 0.25);
}

.slider-input::-moz-range-track {
    height: 8px;
    border: 1px solid var(--border-primary);
    border-radius: 999px;
    background: var(--background-secondary);
}

.slider-input::-moz-range-progress {
    height: 8px;
    border-radius: 999px;
    background: var(--accent-success);
}

.slider-input:hover,
.slider-input:focus-visible {
    border-color: var(--accent-success);
    box-shadow: 0 0 0 2px color-mix(in srgb, var(--accent-success) 25%, transparent);
}

.slider-value {
    min-width: 50px;
    text-align: right;
    font-size: 13px;
    color: var(--text-primary);
    font-weight: 600;
    padding: 2px 8px;
    border: 1px solid var(--border-primary);
    background: var(--background-modal);
    border-radius: 999px;
}

/* ===== Empty States ===== */
.empty-state {
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    justify-content: center;
    padding: 3rem 0;
    text-align: left;
    color: var(--text-secondary);
    max-width: 40ch;
}

.empty-state-label {
    font-size: var(--font-size-category);
    font-weight: var(--font-weight-bold);
    color: var(--text-tertiary);
    margin-bottom: 0.75rem;
    letter-spacing: 0.04em;
}

.empty-state-text {
    font-size: var(--font-size-text);
    font-weight: var(--font-weight-semibold);
    color: var(--text-primary);
    margin-bottom: 0.5rem;
}

.empty-state-subtext {
    font-size: var(--font-size-controls);
    color: var(--text-secondary);
    line-height: 1.5;
}

.empty-state-subtext kbd {
    font-family: var(--font-family-main);
    font-size: 0.9em;
    color: var(--text-primary);
    background: var(--background-secondary);
    border: 1px solid var(--border-primary);
    border-radius: 3px;
    padding: 0 0.3em;
}

.empty-state-action {
    margin-top: 1.5rem;
    display: flex;
    gap: 0.75rem;
    flex-wrap: wrap;
}

.empty-state-actions {
    margin-top: 1.25rem;
    display: flex;
    flex-direction: column;
    gap: 0.4rem;
}

.empty-state-hint {
    margin: 0.85rem 0 0;
    font-size: calc(var(--font-size-controls) * 0.92);
    color: var(--text-tertiary, var(--text-secondary));
    line-height: 1.45;
    max-width: 22rem;
}

.empty-state-action-btn--primary {
    border-color: color-mix(in srgb, var(--accent-primary, var(--text-primary)) 65%, var(--border-primary));
    background: color-mix(in srgb, var(--accent-primary, var(--text-primary)) 14%, var(--background-primary));
    font-weight: var(--font-weight-semibold);
}

.empty-state-action-btn--primary:hover {
    background: color-mix(in srgb, var(--accent-primary, var(--text-primary)) 22%, var(--background-primary));
}

.empty-state-action-btn {
    display: inline-flex;
    align-items: center;
    gap: 0.5em;
    background: none;
    border: none;
    padding: 0.2rem 0;
    font-size: var(--font-size-controls);
    color: var(--text-secondary);
    cursor: pointer;
    text-align: left;
    transition: color 0.12s ease;
}

.empty-state-action-btn:hover {
    color: var(--text-primary);
}

.empty-state-action-btn kbd {
    font-family: var(--font-family-main);
    font-size: 0.9em;
    color: var(--text-primary);
    background: var(--background-secondary);
    border: 1px solid var(--border-primary);
    border-radius: 3px;
    padding: 0 0.3em;
    transition: background 0.12s ease;
}

.empty-state-action-btn:hover kbd {
    background: color-mix(in srgb, var(--accent-primary) 15%, var(--background-secondary));
    border-color: var(--accent-primary);
}

/* ===== Confirmation Dialogs ===== */
.confirm-dialog {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.7);
    z-index: 1500;
    display: flex;
    align-items: center;
    justify-content: center;
}

.confirm-dialog-box {
    background: var(--background-secondary);
    border-radius: 8px;
    padding: 25px;
    max-width: 400px;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.3);
}

.confirm-dialog-title {
    font-size: 18px;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 10px;
}

.confirm-dialog-message {
    font-size: 14px;
    color: var(--text-secondary);
    margin-bottom: 20px;
}

.confirm-dialog-actions {
    display: flex;
    gap: 10px;
    justify-content: flex-end;
}

.confirm-dialog-actions button {
    padding: 8px 16px;
    border-radius: 6px;
    border: none;
    cursor: pointer;
    font-size: 13px;
    font-weight: 500;
}

/* ===== Keyboard Navigation Hints ===== */
.keyboard-hint {
    position: absolute;
    top: 10px;
    right: 10px;
    font-size: 11px;
    color: var(--text-secondary);
    background: var(--background-modal);
    padding: 4px 8px;
    border-radius: 4px;
    opacity: 0;
    transition: opacity 0.2s;
    pointer-events: none;
}

.form-group:hover .keyboard-hint,
button:hover .keyboard-hint {
    opacity: 0.7;
}

/* ===== Drag & Drop Hints ===== */
.dragging-over {
    background: var(--accent-primary);
    opacity: 0.1;
    border-radius: 4px;
}

.drag-hint {
    cursor: grab;
    transition: opacity 0.2s;
}

.drag-hint:active {
    cursor: grabbing;
}

/* ===== Lazy Load Placeholders ===== */
.icon-placeholder {
    background: linear-gradient(90deg, var(--background-modal) 25%, var(--background-primary) 50%, var(--background-modal) 75%);
    background-size: 200% 100%;
    animation: loading 1.5s infinite;
    border-radius: 4px;
    width: 1.15em;
    height: 1.15em;
    display: inline-block;
}

@keyframes loading {
    0% { background-position: 200% 0; }
    100% { background-position: -200% 0; }
}

/* ===== Responsive ===== */
@media (max-width: 768px) {
    .quick-add-modal {
        width: min(480px, 96vw);
    }

    .quick-add-section-row {
        flex-wrap: wrap;
    }

    .quick-add-section-col-narrow {
        flex: 0 0 7ch;
    }

    .confirm-dialog-box {
        max-width: 90vw;
    }
}