:root {
    --container-padding: 16px;
    --input-padding: 8px 12px;
    --button-padding: 8px 16px;
    --border-radius: 6px;
}

* {
    box-sizing: border-box;
}

body {
    padding: 0;
    margin: 0;
    font-family: var(--vscode-font-family);
    font-size: var(--vscode-font-size);
    color: var(--vscode-foreground);
    background-color: var(--vscode-sideBar-background);
}

#root {
    padding: var(--container-padding);
}

/* Loading State */
.loading-state,
.empty-state,
.error-state {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 32px 16px;
    text-align: center;
}

.spinner {
    width: 40px;
    height: 40px;
    border: 3px solid var(--vscode-progressBar-background);
    border-top-color: var(--vscode-progressBar-foreground);
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

@keyframes spin {
    to { transform: rotate(360deg); }
}

/* Header */
.sidebar-header {
    margin-bottom: 16px;
}

.header-title {
    display: flex;
    align-items: center;
    gap: 8px;
    margin-bottom: 12px;
}

.header-title h2 {
    margin: 0;
    font-size: 16px;
    font-weight: 600;
}

.status-badge {
    display: inline-flex;
    align-items: center;
    gap: 4px;
    padding: 2px 8px;
    font-size: 11px;
    background-color: var(--vscode-badge-background);
    color: var(--vscode-badge-foreground);
    border-radius: 10px;
    margin-left: auto;
}

.status-dot {
    width: 6px;
    height: 6px;
    border-radius: 50%;
    background-color: var(--vscode-charts-green);
}

.status-dot.disconnected {
    background-color: var(--vscode-charts-red);
}

/* Search Box */
.search-container {
    position: relative;
    margin-bottom: 16px;
}

.search-box {
    width: 100%;
    padding: var(--input-padding);
    padding-left: 32px;
    background-color: var(--vscode-input-background);
    color: var(--vscode-input-foreground);
    border: 1px solid var(--vscode-input-border);
    border-radius: var(--border-radius);
    font-family: var(--vscode-font-family);
    font-size: var(--vscode-font-size);
}

.search-box:focus {
    outline: 1px solid var(--vscode-focusBorder);
}

.search-icon {
    position: absolute;
    left: 10px;
    top: 50%;
    transform: translateY(-50%);
    opacity: 0.6;
}

/* Action Buttons */
.action-buttons {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 8px;
    margin-bottom: 16px;
}

.btn {
    padding: var(--button-padding);
    background-color: var(--vscode-button-background);
    color: var(--vscode-button-foreground);
    border: none;
    border-radius: var(--border-radius);
    cursor: pointer;
    font-family: var(--vscode-font-family);
    font-size: 13px;
    transition: background-color 0.2s;
}

.btn:hover {
    background-color: var(--vscode-button-hoverBackground);
}

.btn-secondary {
    background-color: var(--vscode-button-secondaryBackground);
    color: var(--vscode-button-secondaryForeground);
}

.btn-secondary:hover {
    background-color: var(--vscode-button-secondaryHoverBackground);
}

.btn:disabled,
.btn[disabled] {
    opacity: 0.5;
    cursor: not-allowed;
}

.btn-icon {
    display: inline-flex;
    align-items: center;
    gap: 6px;
}

/* Header brand + welcome */
.brand-icon {
    width: 28px;
    height: 28px;
}

.brand-placeholder {
    width: 28px;
    height: 28px;
    border-radius: 6px;
    background-color: var(--vscode-badge-background);
    color: var(--vscode-badge-foreground);
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 600;
    font-size: 12px;
}

.header-text {
    display: flex;
    flex-direction: column;
    gap: 2px;
}

.welcome-line {
    font-size: 12px;
    opacity: 0.8;
}

/* Cards */
.card {
    background-color: var(--vscode-editor-background);
    border: 1px solid var(--vscode-input-border);
    border-radius: var(--border-radius);
    padding: 12px;
    margin-top: 12px;
}

.card-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 8px;
}

.label {
    font-weight: 600;
    font-size: 13px;
}

.subdued {
    font-size: 12px;
    opacity: 0.7;
}

.pill {
    padding: 2px 8px;
    border-radius: 12px;
    font-size: 11px;
    background-color: var(--vscode-badge-background);
    color: var(--vscode-badge-foreground);
}

.field {
    display: flex;
    flex-direction: column;
    gap: 4px;
    margin-bottom: 8px;
}

.field label {
    font-size: 12px;
    opacity: 0.8;
}

.textarea {
    width: 100%;
    padding: var(--input-padding);
    background-color: var(--vscode-editor-background);
    color: var(--vscode-input-foreground);
    border: 1px solid var(--vscode-input-border);
    border-radius: var(--border-radius);
    font-family: var(--vscode-editor-font-family), monospace;
    resize: vertical;
}

.refiner-actions {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 8px;
    margin-bottom: 8px;
}

.refined-output {
    background-color: var(--vscode-editorWidget-background);
    border: 1px dashed var(--vscode-input-border);
    border-radius: var(--border-radius);
    padding: 10px;
    font-family: var(--vscode-editor-font-family), monospace;
    white-space: pre-wrap;
    line-height: 1.4;
}

.muted {
    opacity: 0.6;
}

.refiner-notes {
    margin-top: 8px;
    font-size: 11px;
    opacity: 0.8;
    line-height: 1.4;
}

.note-item + .note-item {
    margin-top: 2px;
}

/* Memory List */
.memories-container {
    margin-top: 16px;
}

.section-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 8px 0;
    margin-bottom: 8px;
    font-size: 12px;
    font-weight: 600;
    text-transform: uppercase;
    opacity: 0.8;
}

.memory-group {
    margin-bottom: 16px;
}

.memory-type-header {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 6px 8px;
    background-color: var(--vscode-sideBarSectionHeader-background);
    border-radius: var(--border-radius);
    cursor: pointer;
    font-size: 13px;
    font-weight: 500;
    margin-bottom: 4px;
}

.memory-type-header:hover {
    background-color: var(--vscode-list-hoverBackground);
}

.memory-type-icon {
    font-size: 16px;
}

.memory-count {
    margin-left: auto;
    opacity: 0.7;
    font-size: 11px;
}

.memory-list {
    list-style: none;
    padding: 0;
    margin: 0;
}

.memory-item {
    padding: 10px 12px;
    margin: 2px 0;
    background-color: var(--vscode-list-inactiveSelectionBackground);
    border-radius: var(--border-radius);
    cursor: pointer;
    transition: background-color 0.2s;
}

.memory-item:hover {
    background-color: var(--vscode-list-hoverBackground);
}

.memory-item.active {
    background-color: var(--vscode-list-activeSelectionBackground);
    color: var(--vscode-list-activeSelectionForeground);
}

.memory-title {
    font-size: 13px;
    font-weight: 500;
    margin-bottom: 4px;
}

.memory-meta {
    display: flex;
    gap: 12px;
    font-size: 11px;
    opacity: 0.7;
}

/* Empty States */
.empty-state {
    padding: 48px 24px;
}

.empty-icon {
    font-size: 48px;
    opacity: 0.3;
    margin-bottom: 16px;
}

.empty-state h3 {
    margin: 0 0 8px 0;
    font-size: 16px;
    font-weight: 600;
}

.empty-state p {
    margin: 0 0 24px 0;
    opacity: 0.8;
    line-height: 1.5;
}

/* Authentication State */
.auth-state {
    padding: 32px 16px;
    text-align: center;
}

.auth-icon {
    font-size: 64px;
    opacity: 0.3;
    margin-bottom: 16px;
}

.auth-state h3 {
    margin: 0 0 12px 0;
    font-size: 18px;
    font-weight: 600;
}

.auth-state p {
    margin: 0 0 24px 0;
    opacity: 0.8;
    line-height: 1.6;
}

.auth-actions {
    display: flex;
    flex-direction: column;
    gap: 12px;
    max-width: 280px;
    margin: 0 auto;
}

/* Enhanced Mode Banner */
.enhanced-banner {
    padding: 12px;
    margin-bottom: 16px;
    background: linear-gradient(135deg, var(--vscode-charts-blue) 0%, var(--vscode-charts-purple) 100%);
    border-radius: var(--border-radius);
    color: white;
    font-size: 12px;
}

.enhanced-banner-header {
    display: flex;
    align-items: center;
    gap: 8px;
    margin-bottom: 4px;
    font-weight: 600;
}

.enhanced-banner-text {
    opacity: 0.9;
}

/* Error State */
.error-state {
    padding: 32px 16px;
    text-align: center;
}

.error-icon {
    font-size: 48px;
    color: var(--vscode-errorForeground);
    margin-bottom: 16px;
}

.error-message {
    padding: 12px;
    background-color: var(--vscode-inputValidation-errorBackground);
    border: 1px solid var(--vscode-inputValidation-errorBorder);
    border-radius: var(--border-radius);
    margin-bottom: 16px;
    font-size: 12px;
}

.info-message {
    padding: 10px 12px;
    background-color: var(--vscode-editorWidget-background);
    border-left: 3px solid var(--vscode-progressBar-foreground);
    border-radius: var(--border-radius);
    margin-bottom: 12px;
    font-size: 12px;
}

/* Cache Indicator */
.cache-indicator {
    padding: 6px 12px;
    margin-top: 8px;
    background-color: var(--vscode-badge-background);
    color: var(--vscode-badge-foreground);
    border-radius: var(--border-radius);
    font-size: 11px;
    text-align: center;
    opacity: 0.8;
}

.auth-hint {
    margin-top: 16px;
    padding: 12px;
    background-color: var(--vscode-textBlockQuote-background);
    border-left: 3px solid var(--vscode-textBlockQuote-border);
    border-radius: 4px;
    font-size: 12px;
    line-height: 1.5;
}

.auth-hint code {
    background-color: var(--vscode-textCodeBlock-background);
    padding: 2px 6px;
    border-radius: 3px;
    font-family: var(--vscode-editor-font-family);
    font-size: 11px;
}

/* Utilities */
.hidden {
    display: none !important;
}

.text-center {
    text-align: center;
}

.mt-1 { margin-top: 8px; }
.mt-2 { margin-top: 16px; }
.mb-1 { margin-bottom: 8px; }
.mb-2 { margin-bottom: 16px; }