/* ===========================================
   StemScribe - Settings, Library & Toasts
   (Settings panel, toggle switches, library panel,
    toast notifications)
   =========================================== */

/* Settings Panel */
.settings-btn {
    background: var(--bg-card);
    border: 1px solid var(--psych-purple);
    color: var(--psych-purple);
    padding: 0.5rem 1rem;
    border-radius: 8px;
    cursor: pointer;
    font-size: 0.85rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
    transition: all 0.3s;
}

.settings-btn:hover {
    background: rgba(198, 120, 221, 0.1);
}

.settings-panel {
    position: fixed;
    top: 0;
    right: -400px;
    width: 380px;
    height: 100vh;
    background: var(--bg-card);
    border-left: 1px solid var(--psych-purple);
    z-index: 1000;
    transition: right 0.3s ease;
    overflow-y: auto;
    box-shadow: -10px 0 40px rgba(0,0,0,0.5);
}

.settings-panel.open {
    right: 0;
}

.settings-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1.5rem;
    border-bottom: 1px solid var(--border);
}

.settings-header h3 {
    font-family: 'Righteous', cursive;
    color: var(--psych-purple);
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.close-settings {
    background: none;
    border: none;
    color: var(--text-dim);
    font-size: 1.5rem;
    cursor: pointer;
}

.settings-section {
    padding: 1.5rem;
    border-bottom: 1px solid rgba(255,255,255,0.05);
}

.settings-section h4 {
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 1px;
    color: var(--text-dim);
    margin-bottom: 1rem;
}

.status-card {
    background: var(--bg-dark);
    border-radius: 10px;
    padding: 1rem;
    margin-bottom: 1rem;
}

.status-row {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 0.5rem;
}

.status-row:last-child {
    margin-bottom: 0;
}

.status-label {
    color: var(--text-dim);
    font-size: 0.85rem;
}

.status-value {
    font-weight: 600;
    font-size: 0.9rem;
}

.status-value.connected {
    color: var(--psych-green);
}

.status-value.disconnected {
    color: #e74c3c;
}

.status-indicator {
    display: inline-flex;
    align-items: center;
    gap: 0.4rem;
}

.status-dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    animation: pulse 2s infinite;
}

.status-dot.green {
    background: var(--psych-green);
    box-shadow: 0 0 8px var(--psych-green);
}

.status-dot.red {
    background: #e74c3c;
    box-shadow: 0 0 8px #e74c3c;
}

@keyframes pulse {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.5; }
}

/* Toggle Switch */
.toggle-setting {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0.75rem 0;
    border-bottom: 1px solid rgba(255,255,255,0.05);
}

.toggle-setting:last-child {
    border-bottom: none;
}

.toggle-label {
    display: flex;
    flex-direction: column;
    gap: 0.25rem;
}

.toggle-label .title {
    font-size: 0.9rem;
    color: var(--text-main);
}

.toggle-label .desc {
    font-size: 0.7rem;
    color: var(--text-dim);
}

.toggle-switch {
    position: relative;
    width: 50px;
    height: 26px;
    flex-shrink: 0;
}

.toggle-switch input {
    opacity: 0;
    width: 0;
    height: 0;
}

.toggle-slider {
    position: absolute;
    cursor: pointer;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(60, 60, 80, 0.8);
    border-radius: 26px;
    transition: 0.3s;
    border: 1px solid rgba(255,255,255,0.1);
}

.toggle-slider::before {
    position: absolute;
    content: "";
    height: 20px;
    width: 20px;
    left: 2px;
    bottom: 2px;
    background: linear-gradient(180deg, #888 0%, #666 100%);
    border-radius: 50%;
    transition: 0.3s;
    box-shadow: 0 2px 4px rgba(0,0,0,0.3);
}

.toggle-switch input:checked + .toggle-slider {
    background: linear-gradient(90deg, var(--psych-orange), var(--psych-pink));
}

.toggle-switch input:checked + .toggle-slider::before {
    transform: translateX(24px);
    background: linear-gradient(180deg, #fff 0%, #ddd 100%);
}

.toggle-options {
    display: flex;
    gap: 0.5rem;
    font-size: 0.7rem;
    color: var(--text-dim);
    margin-top: 0.25rem;
}

.toggle-options span {
    padding: 2px 6px;
    border-radius: 4px;
    transition: all 0.2s;
}

.toggle-options span.active {
    background: rgba(255,123,84,0.2);
    color: var(--psych-orange);
}

.settings-btn-action {
    width: 100%;
    padding: 0.75rem 1rem;
    border-radius: 8px;
    border: none;
    cursor: pointer;
    font-size: 0.9rem;
    font-weight: 500;
    transition: all 0.3s;
    margin-bottom: 0.5rem;
}

.settings-btn-action.primary {
    background: linear-gradient(135deg, var(--psych-purple), var(--psych-blue));
    color: white;
}

.settings-btn-action.secondary {
    background: var(--bg-dark);
    border: 1px solid var(--border);
    color: var(--text);
}

.settings-btn-action:hover {
    transform: translateY(-1px);
}

.settings-btn-action:disabled {
    opacity: 0.5;
    cursor: not-allowed;
    transform: none;
}

.disk-usage {
    margin-top: 1rem;
}

.disk-bar {
    height: 8px;
    background: var(--bg-deep);
    border-radius: 4px;
    overflow: hidden;
    margin: 0.5rem 0;
}

.disk-fill {
    height: 100%;
    background: linear-gradient(90deg, var(--psych-green), var(--psych-yellow));
    border-radius: 4px;
    transition: width 0.5s;
}

.disk-stats {
    display: flex;
    justify-content: space-between;
    font-size: 0.75rem;
    color: var(--text-dim);
}

/* Estimated Time Display */
.eta-display {
    text-align: center;
    margin-top: 0.5rem;
    font-size: 0.85rem;
    color: var(--text-dim);
}

.eta-display .eta-time {
    color: var(--psych-yellow);
    font-weight: 600;
}

/* Settings overlay */
.settings-overlay {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0,0,0,0.5);
    z-index: 999;
    opacity: 0;
    visibility: hidden;
    transition: all 0.3s;
}

.settings-overlay.open {
    opacity: 1;
    visibility: visible;
}

/* Library Panel */
.library-btn {
    background: var(--bg-card);
    border: 1px solid var(--psych-orange);
    color: var(--psych-orange);
    padding: 0.5rem 1rem;
    border-radius: 8px;
    cursor: pointer;
    font-size: 0.85rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
    transition: all 0.3s;
}

.library-btn:hover {
    background: rgba(255, 170, 100, 0.1);
}

.library-panel {
    position: fixed;
    top: 0;
    left: -450px;
    width: 420px;
    height: 100vh;
    background: var(--bg-card);
    border-right: 1px solid var(--psych-orange);
    z-index: 1000;
    transition: left 0.3s ease;
    overflow-y: auto;
    box-shadow: 10px 0 40px rgba(0,0,0,0.5);
}

.library-panel.open {
    left: 0;
}

.library-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1.5rem;
    border-bottom: 1px solid var(--border);
    position: sticky;
    top: 0;
    background: var(--bg-card);
}

.library-header h3 {
    font-family: 'Righteous', cursive;
    color: var(--psych-orange);
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.close-library {
    background: none;
    border: none;
    color: var(--text-dim);
    font-size: 1.5rem;
    cursor: pointer;
}

.library-content {
    padding: 1rem;
}

.library-list {
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
}

.library-loading, .library-empty {
    text-align: center;
    padding: 2rem;
    color: var(--text-dim);
}

.library-item {
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid var(--border);
    border-radius: 10px;
    padding: 1rem;
    cursor: pointer;
    transition: all 0.2s;
}

.library-item:hover {
    border-color: var(--psych-orange);
    background: rgba(255, 170, 100, 0.05);
}

.library-item-header {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    margin-bottom: 0.5rem;
}

.library-item-thumb {
    width: 50px;
    height: 50px;
    border-radius: 6px;
    object-fit: cover;
    background: var(--bg-dark);
}

.library-item-info {
    flex: 1;
    min-width: 0;
}

.library-item-title {
    font-weight: 600;
    color: var(--text-light);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    font-size: 0.95rem;
}

.library-item-artist {
    color: var(--text-dim);
    font-size: 0.85rem;
}

.library-item-meta {
    display: flex;
    gap: 1rem;
    font-size: 0.75rem;
    color: var(--text-dim);
}

.library-item-meta span {
    display: flex;
    align-items: center;
    gap: 0.25rem;
}

.library-item-delete {
    background: none;
    border: none;
    color: var(--text-dim);
    cursor: pointer;
    padding: 0.25rem;
    border-radius: 4px;
    opacity: 0;
    transition: all 0.2s;
}

.library-item:hover .library-item-delete {
    opacity: 1;
}

.library-item-delete:hover {
    color: #f55;
    background: rgba(255, 85, 85, 0.1);
}

.library-overlay {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0,0,0,0.5);
    z-index: 999;
    opacity: 0;
    visibility: hidden;
    transition: all 0.3s;
}

.library-overlay.open {
    opacity: 1;
    visibility: visible;
}

/* Toast notifications */
.toast {
    position: fixed;
    bottom: 2rem;
    left: 50%;
    transform: translateX(-50%) translateY(100px);
    background: var(--bg-card);
    border: 1px solid var(--psych-green);
    padding: 1rem 2rem;
    border-radius: 10px;
    color: var(--text);
    z-index: 2000;
    opacity: 0;
    transition: all 0.3s;
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.toast.show {
    opacity: 1;
    transform: translateX(-50%) translateY(0);
}

.toast.error {
    border-color: #e74c3c;
}

/* Keyboard Shortcuts Modal */
.shortcuts-modal {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    z-index: 2000;
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.2s, visibility 0.2s;
}

.shortcuts-modal.open {
    opacity: 1;
    visibility: visible;
}

.shortcuts-backdrop {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.6);
}

.shortcuts-content {
    position: relative;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 12px;
    padding: 1.5rem;
    max-width: 480px;
    width: 90%;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.5);
    transform: scale(0.95);
    transition: transform 0.2s;
}

.shortcuts-modal.open .shortcuts-content {
    transform: scale(1);
}

.shortcuts-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1.25rem;
    padding-bottom: 0.75rem;
    border-bottom: 1px solid var(--border);
}

.shortcuts-header h3 {
    font-family: 'Righteous', cursive;
    color: var(--psych-purple);
    font-size: 1.1rem;
    margin: 0;
}

.shortcuts-close {
    background: none;
    border: none;
    color: var(--text-dim);
    font-size: 1.5rem;
    cursor: pointer;
    padding: 0;
    line-height: 1;
}

.shortcuts-close:hover {
    color: var(--text-main);
}

.shortcuts-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1.5rem;
}

.shortcut-group h4 {
    font-size: 0.7rem;
    text-transform: uppercase;
    letter-spacing: 1px;
    color: var(--text-dim);
    margin: 0 0 0.75rem 0;
}

.shortcut-row {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0.35rem 0;
}

.shortcut-row kbd {
    display: inline-block;
    background: var(--bg-dark);
    border: 1px solid var(--border);
    border-radius: 4px;
    padding: 0.15rem 0.5rem;
    font-family: 'Space Grotesk', monospace;
    font-size: 0.8rem;
    color: var(--text-main);
    min-width: 2rem;
    text-align: center;
    box-shadow: 0 1px 2px rgba(0, 0, 0, 0.2);
}

.shortcut-row span {
    font-size: 0.85rem;
    color: var(--text-dim);
}

.shortcuts-footer-note {
    margin: 1.25rem 0 0 0;
    padding-top: 0.75rem;
    border-top: 1px solid var(--border);
    font-size: 0.75rem;
    color: var(--text-dim);
    text-align: center;
}

.shortcuts-footer-note strong {
    color: var(--psych-orange);
}

@media (max-width: 480px) {
    .shortcuts-grid {
        grid-template-columns: 1fr;
        gap: 1rem;
    }
    .shortcuts-content {
        padding: 1rem;
    }
}