coding-agent-search 0.5.0

/* cass Archive Viewer - Styles
 * CSP-safe: No inline styles, external CSS only
 */

/* ========================================
   CSS Variables (Theme)
   ======================================== */
:root {
    /* Colors */
    --color-bg: #0f172a;
    --color-bg-card: #1e293b;
    --color-bg-input: #334155;
    --color-bg-hover: #475569;
    --color-text: #f1f5f9;
    --color-text-muted: #94a3b8;
    --color-text-dim: #64748b;
    --color-primary: #3b82f6;
    --color-primary-hover: #2563eb;
    --color-secondary: #6366f1;
    --color-success: #22c55e;
    --color-warning: #f59e0b;
    --color-error: #ef4444;
    --color-border: #334155;
    --color-border-focus: #3b82f6;

    /* Typography */
    --font-sans: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    --font-mono: 'SF Mono', Monaco, 'Cascadia Code', 'Roboto Mono', Consolas, monospace;

    /* Spacing */
    --space-xs: 0.25rem;
    --space-sm: 0.5rem;
    --space-md: 1rem;
    --space-lg: 1.5rem;
    --space-xl: 2rem;
    --space-2xl: 3rem;

    /* Border Radius */
    --radius-sm: 0.25rem;
    --radius-md: 0.5rem;
    --radius-lg: 0.75rem;
    --radius-xl: 1rem;

    /* Shadows */
    --shadow-sm: 0 1px 2px 0 rgb(0 0 0 / 0.3);
    --shadow-md: 0 4px 6px -1px rgb(0 0 0 / 0.3), 0 2px 4px -2px rgb(0 0 0 / 0.3);
    --shadow-lg: 0 10px 15px -3px rgb(0 0 0 / 0.3), 0 4px 6px -4px rgb(0 0 0 / 0.3);

    /* Transitions */
    --transition-fast: 150ms ease;
    --transition-normal: 250ms ease;
}

/* Light mode override */
@media (prefers-color-scheme: light) {
    :root {
        --color-bg: #f8fafc;
        --color-bg-card: #ffffff;
        --color-bg-input: #f1f5f9;
        --color-bg-hover: #e2e8f0;
        --color-text: #1e293b;
        --color-text-muted: #64748b;
        --color-text-dim: #94a3b8;
        --color-border: #e2e8f0;
        --shadow-sm: 0 1px 2px 0 rgb(0 0 0 / 0.05);
        --shadow-md: 0 4px 6px -1px rgb(0 0 0 / 0.1), 0 2px 4px -2px rgb(0 0 0 / 0.1);
        --shadow-lg: 0 10px 15px -3px rgb(0 0 0 / 0.1), 0 4px 6px -4px rgb(0 0 0 / 0.1);
    }
}

/* ========================================
   Reset & Base
   ======================================== */
*, *::before, *::after {
    box-sizing: border-box;
}

* {
    margin: 0;
    padding: 0;
}

html {
    font-size: 16px;
    -webkit-text-size-adjust: 100%;
}

body {
    font-family: var(--font-sans);
    font-size: 1rem;
    line-height: 1.5;
    color: var(--color-text);
    background-color: var(--color-bg);
    min-height: 100vh;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

/* ========================================
   Utility Classes
   ======================================== */
.hidden {
    display: none !important;
}

.visually-hidden {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border: 0;
}

/* ========================================
   Accessibility
   ======================================== */

/* Skip link - visible only when focused */
.skip-link {
    position: absolute;
    top: -100%;
    left: 50%;
    transform: translateX(-50%);
    background: var(--color-primary);
    color: white;
    padding: var(--space-sm) var(--space-md);
    border-radius: var(--radius-md);
    text-decoration: none;
    font-weight: 500;
    z-index: 10000;
    transition: top var(--transition-fast);
}

.skip-link:focus {
    top: var(--space-sm);
    outline: 3px solid var(--color-primary);
    outline-offset: 2px;
}

/* Enhanced focus styles for keyboard navigation */
:focus {
    outline: 2px solid var(--color-primary);
    outline-offset: 2px;
}

/* Only show focus outline for keyboard navigation, not mouse */
:focus:not(:focus-visible) {
    outline: none;
}

:focus-visible {
    outline: 3px solid var(--color-primary);
    outline-offset: 2px;
}

/* High contrast focus for interactive elements */
button:focus-visible,
input:focus-visible,
a:focus-visible,
[tabindex]:focus-visible {
    outline: 3px solid var(--color-primary);
    box-shadow: 0 0 0 6px rgba(59, 130, 246, 0.25);
}

/* Reduced motion support */
@media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
        scroll-behavior: auto !important;
    }

    .spinner {
        animation: none !important;
    }
}

/* High contrast mode support */
@media (prefers-contrast: high) {
    :root {
        --color-border: currentColor;
        --color-border-focus: currentColor;
    }

    button,
    input,
    .auth-card,
    .error {
        border: 2px solid currentColor;
    }
}

/* ========================================
   Auth Screen
   ======================================== */
.auth-container {
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: var(--space-lg);
}

.auth-card {
    width: 100%;
    max-width: 420px;
    background: var(--color-bg-card);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-lg);
    padding: var(--space-2xl);
    border: 1px solid var(--color-border);
}

.auth-header {
    text-align: center;
    margin-bottom: var(--space-xl);
}

.auth-header .logo {
    font-size: 3rem;
    margin-bottom: var(--space-md);
}

.auth-header h1 {
    font-size: 1.75rem;
    font-weight: 600;
    margin-bottom: var(--space-sm);
}

.auth-header .subtitle {
    color: var(--color-text-muted);
    font-size: 0.9375rem;
}

/* Fingerprint */
.fingerprint {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-sm);
    padding: var(--space-md);
    background: var(--color-bg-input);
    border-radius: var(--radius-md);
    margin-bottom: var(--space-xl);
    font-size: 0.875rem;
}

.fingerprint-label {
    color: var(--color-text-muted);
}

.fingerprint code {
    font-family: var(--font-mono);
    color: var(--color-primary);
    font-weight: 500;
    letter-spacing: 0.5px;
}

/* TOFU (Trust On First Use) Verification */
.help-btn.tofu-warning {
    background: var(--color-warning);
    border-color: var(--color-warning);
    color: white;
    animation: tofu-pulse 2s infinite;
}

.help-btn.tofu-verified {
    border-color: var(--color-success);
    color: var(--color-success);
}

@keyframes tofu-pulse {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.7; }
}

.tofu-warning-banner {
    margin-bottom: var(--space-lg);
    padding: var(--space-md);
    background: linear-gradient(135deg, rgba(245, 158, 11, 0.15) 0%, rgba(220, 38, 38, 0.15) 100%);
    border: 2px solid var(--color-warning);
    border-radius: var(--radius-md);
}

.tofu-warning-content {
    text-align: left;
}

.tofu-warning-content strong {
    color: var(--color-warning);
    display: block;
    margin-bottom: var(--space-sm);
}

.tofu-warning-content p {
    margin: var(--space-xs) 0;
    font-size: 0.875rem;
}

.tofu-fingerprints {
    display: flex;
    flex-direction: column;
    gap: var(--space-xs);
    margin: var(--space-sm) 0;
    font-size: 0.8125rem;
}

.tofu-fingerprints code {
    font-family: var(--font-mono);
    background: var(--color-bg-input);
    padding: var(--space-xs) var(--space-sm);
    border-radius: var(--radius-sm);
}

.tofu-actions {
    display: flex;
    gap: var(--space-sm);
    margin-top: var(--space-md);
}

.tofu-accept,
.tofu-dismiss {
    flex: 1;
    padding: var(--space-sm) var(--space-md);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    background: transparent;
    color: var(--color-text);
    cursor: pointer;
    font-size: 0.875rem;
    transition: var(--transition-fast);
}

.tofu-accept:hover {
    background: var(--color-success);
    border-color: var(--color-success);
    color: white;
}

.tofu-dismiss:hover {
    background: var(--color-bg-hover);
}

.help-btn {
    width: 1.25rem;
    height: 1.25rem;
    border-radius: 50%;
    border: 1px solid var(--color-border);
    background: transparent;
    color: var(--color-text-muted);
    font-size: 0.75rem;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: var(--transition-fast);
}

.help-btn:hover {
    background: var(--color-bg-hover);
    color: var(--color-text);
}

.tooltip {
    padding: var(--space-md);
    background: var(--color-bg-input);
    border-radius: var(--radius-md);
    font-size: 0.8125rem;
    color: var(--color-text-muted);
    margin-bottom: var(--space-lg);
    line-height: 1.6;
}

/* Auth Form */
.auth-form {
    display: flex;
    flex-direction: column;
    gap: var(--space-md);
}

.form-group {
    display: flex;
    flex-direction: column;
    gap: var(--space-xs);
}

.form-group label {
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--color-text-muted);
}

.password-input-wrapper {
    position: relative;
    display: flex;
    align-items: center;
}

.password-input-wrapper input {
    width: 100%;
    padding: var(--space-md);
    padding-right: 3rem;
    background: var(--color-bg-input);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    color: var(--color-text);
    font-size: 1rem;
    transition: var(--transition-fast);
}

.password-input-wrapper input:focus {
    outline: none;
    border-color: var(--color-border-focus);
    box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.2);
}

.password-input-wrapper input::placeholder {
    color: var(--color-text-dim);
}

.toggle-password {
    position: absolute;
    right: var(--space-sm);
    width: 2rem;
    height: 2rem;
    border: none;
    background: transparent;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--color-text-muted);
    transition: var(--transition-fast);
}

.toggle-password:hover {
    color: var(--color-text);
}

.eye-icon {
    font-size: 1rem;
}

/* Buttons */
.btn {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-sm);
    padding: var(--space-md) var(--space-lg);
    border-radius: var(--radius-md);
    font-size: 1rem;
    font-weight: 500;
    cursor: pointer;
    transition: var(--transition-fast);
    border: none;
}

.btn-primary {
    background: var(--color-primary);
    color: white;
}

.btn-primary:hover {
    background: var(--color-primary-hover);
}

.btn-primary:active {
    transform: scale(0.98);
}

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

.btn-secondary:hover {
    background: var(--color-bg-hover);
}

.btn-small {
    padding: var(--space-sm) var(--space-md);
    font-size: 0.875rem;
}

.btn-close {
    width: 2rem;
    height: 2rem;
    border-radius: var(--radius-sm);
    border: none;
    background: transparent;
    color: var(--color-text-muted);
    font-size: 1.25rem;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: var(--transition-fast);
}

.btn-close:hover {
    background: var(--color-bg-hover);
    color: var(--color-text);
}

.btn-icon {
    font-size: 1.125rem;
}

/* Divider */
.divider {
    display: flex;
    align-items: center;
    gap: var(--space-md);
    margin: var(--space-md) 0;
}

.divider::before,
.divider::after {
    content: '';
    flex: 1;
    height: 1px;
    background: var(--color-border);
}

.divider span {
    color: var(--color-text-dim);
    font-size: 0.8125rem;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

/* QR Scanner */
.qr-scanner {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: var(--color-bg);
    z-index: 100;
    display: flex;
    flex-direction: column;
    padding: var(--space-lg);
}

.qr-scanner-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: var(--space-lg);
}

.qr-scanner-header h2 {
    font-size: 1.25rem;
    font-weight: 600;
}

#qr-reader {
    flex: 1;
    max-height: 400px;
    border-radius: var(--radius-lg);
    overflow: hidden;
    background: var(--color-bg-card);
}

.qr-instructions {
    text-align: center;
    margin-top: var(--space-lg);
    color: var(--color-text-muted);
    font-size: 0.9375rem;
}

/* Error Message */
.error {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    padding: var(--space-md);
    background: rgba(239, 68, 68, 0.1);
    border: 1px solid rgba(239, 68, 68, 0.3);
    border-radius: var(--radius-md);
    color: var(--color-error);
    font-size: 0.875rem;
    margin-top: var(--space-md);
}

.error-icon {
    flex-shrink: 0;
}

/* Progress */
.progress {
    margin-top: var(--space-lg);
    text-align: center;
}

.progress-bar {
    height: 4px;
    background: var(--color-bg-input);
    border-radius: var(--radius-sm);
    overflow: hidden;
    margin-bottom: var(--space-sm);
}

.progress-fill {
    height: 100%;
    background: var(--color-primary);
    width: 0%;
    transition: width var(--transition-normal);
}

.progress-text {
    font-size: 0.875rem;
    color: var(--color-text-muted);
}

/* Auth Footer */
.auth-footer {
    margin-top: var(--space-xl);
    text-align: center;
}

.auth-footer p {
    font-size: 0.8125rem;
    color: var(--color-text-dim);
}

.auth-footer a {
    color: var(--color-primary);
    text-decoration: none;
}

.auth-footer a:hover {
    text-decoration: underline;
}

/* ========================================
   App Screen
   ======================================== */
.app-container {
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

.app-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--space-md) var(--space-lg);
    background: var(--color-bg-card);
    border-bottom: 1px solid var(--color-border);
}

.header-left {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
}

.header-left .logo-small {
    font-size: 1.5rem;
}

.header-left h1 {
    font-size: 1.125rem;
    font-weight: 600;
}

#app-content {
    flex: 1;
    padding: var(--space-lg);
}

/* Loading State */
.loading-state {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    height: 50vh;
    gap: var(--space-md);
}

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

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

.loading-state p {
    color: var(--color-text-muted);
}

/* ========================================
   Search UI (populated by search.js)
   ======================================== */
.search-container {
    max-width: 800px;
    margin: 0 auto;
}

.search-box {
    display: flex;
    gap: var(--space-sm);
    margin-bottom: var(--space-lg);
}

.search-input {
    flex: 1;
    padding: var(--space-md);
    background: var(--color-bg-input);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    color: var(--color-text);
    font-size: 1rem;
}

.search-input:focus {
    outline: none;
    border-color: var(--color-border-focus);
}

.search-filters {
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-sm);
    margin-bottom: var(--space-lg);
}

.filter-chip {
    padding: var(--space-xs) var(--space-md);
    background: var(--color-bg-input);
    border: 1px solid var(--color-border);
    border-radius: 9999px;
    font-size: 0.8125rem;
    cursor: pointer;
    transition: var(--transition-fast);
}

.filter-chip:hover,
.filter-chip.active {
    background: var(--color-primary);
    border-color: var(--color-primary);
    color: white;
}

/* Search Mode Toggle */
.search-mode-group {
    display: flex;
    flex-direction: column;
    gap: var(--space-xs);
}

.search-mode-toggle {
    display: flex;
    background: var(--color-bg-input);
    border-radius: var(--radius-md);
    padding: 2px;
    gap: 2px;
}

.search-mode-btn {
    padding: var(--space-xs) var(--space-sm);
    background: transparent;
    border: none;
    border-radius: var(--radius-sm);
    font-size: 0.75rem;
    font-weight: 500;
    color: var(--color-text-muted);
    cursor: pointer;
    transition: var(--transition-fast);
}

.search-mode-btn:hover {
    color: var(--color-text);
    background: var(--color-bg-hover);
}

.search-mode-btn.active {
    background: var(--color-primary);
    color: white;
}

/* Search Results Header */
.search-results-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: var(--space-md);
    flex-wrap: wrap;
}

.search-mode-indicator {
    font-size: 0.75rem;
    color: var(--color-text-muted);
    padding: var(--space-xs) var(--space-sm);
    background: var(--color-bg-input);
    border-radius: var(--radius-sm);
    display: flex;
    align-items: center;
    gap: var(--space-xs);
}

.search-mode-indicator[data-mode="code"] {
    color: var(--color-secondary);
    background: rgba(99, 102, 241, 0.15);
}

.search-mode-indicator[data-mode="prose"] {
    color: var(--color-success);
    background: rgba(34, 197, 94, 0.15);
}

/* Search Results */
.search-results {
    display: flex;
    flex-direction: column;
    gap: var(--space-md);
}

.result-card {
    background: var(--color-bg-card);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    padding: var(--space-lg);
    cursor: pointer;
    transition: var(--transition-fast);
}

.result-card:hover {
    border-color: var(--color-primary);
    box-shadow: var(--shadow-md);
}

.result-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: var(--space-sm);
}

.result-title {
    font-weight: 600;
    color: var(--color-text);
}

.result-agent {
    font-size: 0.75rem;
    padding: var(--space-xs) var(--space-sm);
    background: var(--color-bg-input);
    border-radius: var(--radius-sm);
    color: var(--color-text-muted);
}

.result-snippet {
    font-size: 0.9375rem;
    color: var(--color-text-muted);
    line-height: 1.6;
}

.result-snippet mark {
    background: rgba(59, 130, 246, 0.3);
    color: var(--color-text);
    padding: 0 2px;
    border-radius: 2px;
}

.result-meta {
    display: flex;
    gap: var(--space-md);
    margin-top: var(--space-sm);
    font-size: 0.8125rem;
    color: var(--color-text-dim);
}

/* ========================================
   Virtual Scrolling
   ======================================== */

/* Virtual list container */
.virtual-list-inner {
    contain: layout style;
}

/* Results list with virtual scrolling */
.results-list {
    position: relative;
}

.results-list.virtual-scroll {
    height: calc(100vh - 300px);
    min-height: 400px;
    overflow: auto;
}

/* Fixed height result cards for virtual list */
.results-list .result-card {
    box-sizing: border-box;
    overflow: hidden;
}

/* Virtual list result card adjustments */
.results-list [data-virtual-index] .result-card {
    margin: 0;
    height: 100%;
}

/* Messages list with virtual scrolling */
.messages-list.virtual-messages {
    height: calc(100vh - 200px);
    min-height: 400px;
    overflow: auto;
    position: relative;
}

/* Virtual indicator badge */
.virtual-indicator {
    font-size: 0.75rem;
    padding: 0 var(--space-xs);
    color: var(--color-warning);
    cursor: help;
}

/* Loading indicator for lazy loading */
.loading-more {
    display: flex;
    align-items: center;
    justify-content: center;
    padding: var(--space-lg);
    color: var(--color-text-muted);
}

/* Scroll shadows for virtualized lists */
.scroll-shadow-top,
.scroll-shadow-bottom {
    position: absolute;
    left: 0;
    right: 0;
    height: 20px;
    pointer-events: none;
    z-index: 10;
}

.scroll-shadow-top {
    top: 0;
    background: linear-gradient(to bottom, var(--color-bg) 0%, transparent 100%);
}

.scroll-shadow-bottom {
    bottom: 0;
    background: linear-gradient(to top, var(--color-bg) 0%, transparent 100%);
}

/* Flash highlight animation for scrolled-to items */
@keyframes highlight-flash {
    0% { background-color: rgba(59, 130, 246, 0.3); }
    100% { background-color: transparent; }
}

.highlight-flash {
    animation: highlight-flash 2s ease-out;
}

/* Performance optimization: GPU acceleration for virtual items */
.virtual-list-inner > * {
    will-change: transform;
}

/* ========================================
   Conversation Viewer (populated by conversation.js)
   ======================================== */
.conversation-container {
    max-width: 900px;
    margin: 0 auto;
}

.conversation-header {
    display: flex;
    align-items: center;
    gap: var(--space-md);
    margin-bottom: var(--space-lg);
    padding-bottom: var(--space-lg);
    border-bottom: 1px solid var(--color-border);
}

.back-btn {
    width: 2.5rem;
    height: 2.5rem;
    border-radius: var(--radius-md);
    border: 1px solid var(--color-border);
    background: transparent;
    color: var(--color-text);
    font-size: 1.25rem;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: var(--transition-fast);
}

.back-btn:hover {
    background: var(--color-bg-hover);
}

.conversation-title {
    flex: 1;
}

.conversation-title h2 {
    font-size: 1.25rem;
    font-weight: 600;
}

.conversation-title .meta {
    font-size: 0.8125rem;
    color: var(--color-text-muted);
}

.messages-list {
    display: flex;
    flex-direction: column;
    gap: var(--space-lg);
}

.message {
    background: var(--color-bg-card);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    overflow: hidden;
}

.message-header {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    padding: var(--space-md);
    background: var(--color-bg-input);
    border-bottom: 1px solid var(--color-border);
}

.message-role {
    font-weight: 600;
    font-size: 0.875rem;
}

.message-role.user {
    color: var(--color-primary);
}

.message-role.assistant {
    color: var(--color-success);
}

.message-time {
    font-size: 0.75rem;
    color: var(--color-text-dim);
    margin-left: auto;
}

.message-content {
    padding: var(--space-lg);
    font-size: 0.9375rem;
    line-height: 1.7;
}

.message-content p {
    margin-bottom: var(--space-md);
}

.message-content p:last-child {
    margin-bottom: 0;
}

/* Code blocks */
.message-content pre {
    background: var(--color-bg);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    padding: var(--space-md);
    overflow-x: auto;
    margin: var(--space-md) 0;
}

.message-content code {
    font-family: var(--font-mono);
    font-size: 0.875rem;
}

.message-content :not(pre) > code {
    background: var(--color-bg-input);
    padding: 2px 6px;
    border-radius: var(--radius-sm);
}

/* ========================================
   Responsive Design
   ======================================== */
@media (max-width: 640px) {
    .auth-card {
        padding: var(--space-lg);
    }

    .auth-header .logo {
        font-size: 2.5rem;
    }

    .auth-header h1 {
        font-size: 1.5rem;
    }

    .btn {
        padding: var(--space-md);
    }

    .fingerprint {
        flex-wrap: wrap;
        text-align: center;
    }

    .search-box {
        flex-direction: column;
    }

    .result-header {
        flex-direction: column;
        align-items: flex-start;
        gap: var(--space-sm);
    }

    .conversation-header {
        flex-wrap: wrap;
    }
}

/* ========================================
   Print Styles
   ======================================== */
@media print {
    .auth-container,
    .app-header,
    .search-box,
    .search-filters,
    .back-btn,
    .btn {
        display: none !important;
    }

    .app-container,
    .conversation-container {
        padding: 0;
    }

    .message {
        break-inside: avoid;
        border: 1px solid #ccc;
    }

    .message-content pre {
        white-space: pre-wrap;
    }
}

/* ========================================
   Accessibility
   ======================================== */
@media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
}

/* Focus visible for keyboard navigation */
:focus-visible {
    outline: 2px solid var(--color-primary);
    outline-offset: 2px;
}

button:focus:not(:focus-visible),
input:focus:not(:focus-visible) {
    outline: none;
}

/* ========================================
   COI Status & Reload UX (P3.2c)
   ======================================== */
.coi-container {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    background-color: var(--color-bg);
    z-index: 10000;
}

.coi-status {
    text-align: center;
    max-width: 400px;
    padding: var(--space-xl);
    background-color: var(--color-bg-card);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-lg);
}

/* Installing state */
.coi-status.installing .coi-spinner {
    width: 48px;
    height: 48px;
    border: 4px solid var(--color-border);
    border-top-color: var(--color-primary);
    border-radius: 50%;
    animation: coi-spin 1s linear infinite;
    margin: 0 auto var(--space-lg);
}

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

.coi-status h3 {
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--color-text);
    margin-bottom: var(--space-md);
}

.coi-status p {
    color: var(--color-text-muted);
    margin-bottom: var(--space-md);
}

.coi-detail {
    font-size: 0.875rem;
    color: var(--color-text-dim);
}

/* Needs reload state */
.coi-status.needs-reload .coi-icon {
    font-size: 3rem;
    margin-bottom: var(--space-lg);
}

.coi-reload-btn {
    margin-top: var(--space-md);
    margin-bottom: var(--space-lg);
}

.coi-details {
    text-align: left;
    margin-top: var(--space-lg);
    padding: var(--space-md);
    background-color: var(--color-bg-input);
    border-radius: var(--radius-md);
    font-size: 0.875rem;
}

.coi-details summary {
    cursor: pointer;
    color: var(--color-text-muted);
    font-weight: 500;
    margin-bottom: var(--space-sm);
}

.coi-details summary:hover {
    color: var(--color-primary);
}

.coi-details p {
    margin-bottom: var(--space-sm);
    color: var(--color-text-muted);
}

.coi-details ul {
    margin-left: var(--space-lg);
    margin-bottom: var(--space-md);
    color: var(--color-text-muted);
}

.coi-details li {
    margin-bottom: var(--space-xs);
}

.coi-note {
    font-style: italic;
    color: var(--color-text-dim);
}

/* Degraded mode banner */
.coi-degraded-banner {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-md);
    padding: var(--space-sm) var(--space-md);
    background-color: var(--color-warning);
    color: #1a1a1a;
    font-size: 0.875rem;
    z-index: 9999;
}

.coi-warning-icon {
    font-size: 1rem;
}

.coi-warning-text {
    flex: 1;
    text-align: center;
}

.coi-dismiss-btn {
    background: transparent;
    border: none;
    color: #1a1a1a;
    cursor: pointer;
    padding: var(--space-xs);
    font-size: 1rem;
    opacity: 0.7;
    transition: opacity var(--transition-fast);
}

.coi-dismiss-btn:hover {
    opacity: 1;
}

/* Adjust auth screen when degraded banner is shown */
body:has(.coi-degraded-banner) .auth-container {
    padding-top: calc(var(--space-2xl) + 2rem);
}

/* COI Header with logo */
.coi-header {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--space-md);
    margin-bottom: var(--space-lg);
}

.coi-logo {
    font-size: 3rem;
}

/* Progress Steps */
.coi-progress-steps {
    display: flex;
    flex-direction: column;
    gap: var(--space-md);
    margin: var(--space-lg) 0;
    text-align: left;
}

.coi-step {
    display: flex;
    align-items: center;
    gap: var(--space-md);
    padding: var(--space-sm) var(--space-md);
    background-color: var(--color-bg-input);
    border-radius: var(--radius-md);
    transition: background-color var(--transition-fast), opacity var(--transition-fast);
}

.coi-step[data-status="pending"] {
    opacity: 0.5;
}

.coi-step[data-status="loading"] {
    background-color: rgba(59, 130, 246, 0.1);
}

.coi-step[data-status="complete"] {
    background-color: rgba(34, 197, 94, 0.1);
}

.coi-step[data-status="error"] {
    background-color: rgba(239, 68, 68, 0.1);
}

.coi-step-icon {
    font-size: 1.25rem;
    min-width: 1.5rem;
    text-align: center;
}

.coi-step[data-status="loading"] .coi-step-icon {
    animation: coi-pulse 1.5s ease-in-out infinite;
}

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

.coi-step-text {
    flex: 1;
    font-size: 0.875rem;
    color: var(--color-text);
}

/* Reload Section */
.coi-reload-section {
    margin-top: var(--space-lg);
    padding-top: var(--space-lg);
    border-top: 1px solid var(--color-border);
}

.coi-reload-message {
    margin-bottom: var(--space-lg);
    color: var(--color-text-muted);
}

/* Countdown */
.coi-countdown-wrapper {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-xs);
    margin-bottom: var(--space-md);
    font-size: 0.875rem;
    color: var(--color-text-muted);
}

.coi-countdown-number {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 2rem;
    height: 2rem;
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--color-primary);
    background-color: rgba(59, 130, 246, 0.1);
    border-radius: 50%;
    animation: coi-countdown-pulse 1s ease-in-out infinite;
}

@keyframes coi-countdown-pulse {
    0%, 100% { transform: scale(1); }
    50% { transform: scale(1.1); }
}

/* Reload Buttons */
.coi-reload-buttons {
    display: flex;
    gap: var(--space-md);
    justify-content: center;
    margin-bottom: var(--space-md);
}

.coi-cancel-btn {
    background-color: transparent;
    border: 1px solid var(--color-border);
    color: var(--color-text-muted);
}

.coi-cancel-btn:hover {
    background-color: var(--color-bg-input);
    color: var(--color-text);
}

/* ========================================
   Memory Warning Banner (P3.5c)
   ======================================== */
.memory-warning-banner {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-md);
    padding: var(--space-sm) var(--space-md);
    background-color: var(--color-error);
    color: white;
    font-size: 0.875rem;
    z-index: 9998;
    animation: memory-warning-slide-in 0.3s ease-out;
}

@keyframes memory-warning-slide-in {
    from {
        transform: translateY(-100%);
    }
    to {
        transform: translateY(0);
    }
}

.memory-warning-icon {
    font-size: 1rem;
}

.memory-warning-text {
    flex: 1;
    text-align: center;
}

.memory-clear-btn {
    background: white;
    color: var(--color-error);
    border: none;
    padding: var(--space-xs) var(--space-md);
    border-radius: var(--radius-sm);
    cursor: pointer;
    font-weight: 500;
    transition: background-color var(--transition-fast), transform var(--transition-fast);
}

.memory-clear-btn:hover {
    background: rgba(255, 255, 255, 0.9);
    transform: scale(1.02);
}

.memory-dismiss-btn {
    background: transparent;
    border: none;
    color: white;
    cursor: pointer;
    padding: var(--space-xs);
    font-size: 1rem;
    opacity: 0.7;
    transition: opacity var(--transition-fast);
}

.memory-dismiss-btn:hover {
    opacity: 1;
}

/* Adjust app screen when memory warning is shown */
body:has(.memory-warning-banner) .app-container {
    padding-top: calc(var(--space-2xl) + 2rem);
}

body:has(.memory-warning-banner) .app-header {
    top: 2.5rem;
}

/* Password Strength Meter */
.strength-meter {
    height: 4px;
    background: var(--color-border);
    border-radius: 2px;
    margin-top: var(--space-sm);
    overflow: hidden;
}

.strength-bar {
    height: 100%;
    border-radius: 2px;
    width: 0;
    transition: width 0.3s ease, background-color 0.3s ease;
}

.strength-bar[data-strength="weak"] {
    width: 25%;
    background: #ef4444;
}

.strength-bar[data-strength="fair"] {
    width: 50%;
    background: #f59e0b;
}

.strength-bar[data-strength="good"] {
    width: 75%;
    background: #3b82f6;
}

.strength-bar[data-strength="strong"] {
    width: 100%;
    background: #22c55e;
}

.strength-info {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-top: var(--space-xs);
    font-size: 0.75rem;
}

.strength-label {
    font-weight: 500;
    transition: color 0.3s ease;
}

.strength-label[data-strength="weak"] { color: #ef4444; }
.strength-label[data-strength="fair"] { color: #f59e0b; }
.strength-label[data-strength="good"] { color: #3b82f6; }
.strength-label[data-strength="strong"] { color: #22c55e; }

.strength-suggestions {
    list-style: none;
    margin: var(--space-xs) 0 0 0;
    padding: 0;
    font-size: 0.75rem;
    color: var(--color-text-dim);
}

.strength-suggestions li {
    padding: var(--space-xs) 0;
}

.strength-suggestions li::before {
    content: "•";
    margin-right: var(--space-xs);
    color: var(--color-text-dim);
}

/* ========================================
   Attachment Styles
   ======================================== */
.attachment {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--space-sm);
    padding: var(--space-md);
    background: var(--color-bg-alt);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    margin: var(--space-md) 0;
    max-width: 100%;
}

.attachment-placeholder {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--space-xs);
    padding: var(--space-lg);
    cursor: pointer;
    transition: var(--transition-fast);
}

.attachment-placeholder:hover {
    background: var(--color-hover);
    border-radius: var(--radius-sm);
}

.attachment-icon {
    font-size: 2rem;
}

.attachment-name {
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--color-text);
    word-break: break-all;
    text-align: center;
}

.attachment-size {
    font-size: 0.75rem;
    color: var(--color-text-dim);
}

.attachment-loading {
    display: flex;
    align-items: center;
    justify-content: center;
    padding: var(--space-lg);
}

.attachment-img {
    max-width: 100%;
    max-height: 500px;
    border-radius: var(--radius-sm);
    object-fit: contain;
}

.attachment-caption {
    font-size: 0.75rem;
    color: var(--color-text-dim);
    text-align: center;
    padding-top: var(--space-xs);
}

.attachment-download {
    padding: var(--space-xs) var(--space-md);
    font-size: 0.875rem;
    background: var(--color-primary);
    color: white;
    border: none;
    border-radius: var(--radius-sm);
    cursor: pointer;
    transition: var(--transition-fast);
}

.attachment-download:hover {
    background: var(--color-primary-hover);
}

.attachment-error {
    color: var(--color-error);
    font-size: 0.875rem;
}

.attachment-image {
    background: transparent;
    border: none;
}

.attachment-image.loaded {
    background: var(--color-bg-alt);
    border: 1px solid var(--color-border);
}

.attachment-pdf,
.attachment-file {
    flex-direction: row;
    align-items: center;
    gap: var(--space-md);
}

/* Message attachments container */
.message-attachments {
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-md);
    margin-top: var(--space-md);
    padding-top: var(--space-md);
    border-top: 1px solid var(--color-border);
}

.message-attachments-label {
    font-size: 0.75rem;
    color: var(--color-text-dim);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-bottom: var(--space-xs);
    width: 100%;
}

/* Inline attachment thumbnail for message list */
.attachment-thumb {
    width: 60px;
    height: 60px;
    border-radius: var(--radius-sm);
    object-fit: cover;
    border: 1px solid var(--color-border);
}

.attachment-count {
    display: inline-flex;
    align-items: center;
    gap: var(--space-xs);
    font-size: 0.75rem;
    color: var(--color-text-dim);
    background: var(--color-bg-alt);
    padding: 2px 8px;
    border-radius: var(--radius-sm);
}

/* ========================================
   Navigation Bar
   ======================================== */
.nav-bar {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--space-sm) var(--space-lg);
    background: var(--color-bg-card);
    border-bottom: 1px solid var(--color-border);
    position: sticky;
    top: 0;
    z-index: 100;
}

.nav-brand {
    display: flex;
    align-items: center;
}

.nav-logo {
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--color-text);
    text-decoration: none;
    transition: color var(--transition-fast);
}

.nav-logo:hover {
    color: var(--color-primary);
}

.nav-links {
    display: flex;
    gap: var(--space-md);
}

.nav-link {
    padding: var(--space-xs) var(--space-md);
    color: var(--color-text-muted);
    text-decoration: none;
    font-size: 0.875rem;
    font-weight: 500;
    border-radius: var(--radius-md);
    transition: all var(--transition-fast);
}

.nav-link:hover {
    color: var(--color-text);
    background: var(--color-bg-hover);
}

.nav-link.active {
    color: var(--color-primary);
    background: rgba(59, 130, 246, 0.1);
}

/* ========================================
   Panel / View Containers
   ======================================== */
.panel {
    max-width: 800px;
    margin: var(--space-xl) auto;
    padding: var(--space-lg);
    background: var(--color-bg-card);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-md);
}

.panel-header {
    margin-bottom: var(--space-lg);
    padding-bottom: var(--space-md);
    border-bottom: 1px solid var(--color-border);
}

.panel-header h2 {
    font-size: 1.5rem;
    font-weight: 600;
    color: var(--color-text);
}

.panel-content {
    color: var(--color-text-muted);
}

/* ========================================
   Settings Panel
   ======================================== */
.settings-section {
    margin-bottom: var(--space-xl);
}

.settings-section:last-child {
    margin-bottom: 0;
}

.settings-section h3 {
    font-size: 1rem;
    font-weight: 600;
    color: var(--color-text);
    margin-bottom: var(--space-md);
}

.setting-item {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--space-md) 0;
    border-bottom: 1px solid var(--color-border);
}

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

.setting-item label {
    color: var(--color-text);
    font-size: 0.875rem;
}

.settings-select {
    padding: var(--space-xs) var(--space-md);
    background: var(--color-bg-input);
    color: var(--color-text);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    font-size: 0.875rem;
    cursor: pointer;
}

.settings-select:focus {
    border-color: var(--color-border-focus);
    outline: none;
}

.settings-info {
    color: var(--color-text-muted);
    font-size: 0.875rem;
    line-height: 1.6;
}

.settings-info small {
    color: var(--color-text-dim);
}

.settings-description {
    color: var(--color-text-muted);
    font-size: 0.875rem;
    line-height: 1.5;
    margin-bottom: var(--space-md);
}

.setting-description {
    color: var(--color-text-muted);
    font-size: 0.75rem;
    margin-top: var(--space-xs);
    margin-bottom: 0;
}

/* Radio Option Group for Storage Mode */
.radio-group {
    display: flex;
    flex-direction: column;
    gap: var(--space-sm);
    width: 100%;
}

.radio-option {
    display: flex;
    flex-direction: column;
    padding: var(--space-md);
    background: var(--color-bg);
    border: 2px solid var(--color-border);
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: border-color 0.2s, background-color 0.2s;
}

.radio-option:hover {
    border-color: var(--color-border-focus);
}

.radio-option.selected {
    border-color: var(--color-primary);
    background: var(--color-bg-highlight);
}

.radio-option input[type="radio"] {
    display: none;
}

.radio-label {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    font-weight: 600;
    color: var(--color-text);
}

.radio-badge {
    font-size: 0.625rem;
    font-weight: 700;
    text-transform: uppercase;
    padding: 2px 6px;
    border-radius: var(--radius-sm);
}

.badge-secure {
    background: var(--color-success-bg);
    color: var(--color-success);
}

.badge-warning {
    background: var(--color-warning-bg);
    color: var(--color-warning);
}

.radio-description {
    font-size: 0.75rem;
    color: var(--color-text-muted);
    margin-top: var(--space-xs);
}

/* Toggle Switch */
.toggle-switch {
    display: flex;
    align-items: center;
    gap: var(--space-md);
    cursor: pointer;
}

.toggle-switch input {
    display: none;
}

.toggle-slider {
    position: relative;
    width: 48px;
    height: 24px;
    background: var(--color-bg-input);
    border: 1px solid var(--color-border);
    border-radius: 24px;
    transition: background-color 0.2s;
}

.toggle-slider::after {
    content: '';
    position: absolute;
    top: 2px;
    left: 2px;
    width: 18px;
    height: 18px;
    background: var(--color-text-muted);
    border-radius: 50%;
    transition: transform 0.2s;
}

.toggle-switch input:checked + .toggle-slider {
    background: var(--color-primary);
    border-color: var(--color-primary);
}

.toggle-switch input:checked + .toggle-slider::after {
    background: white;
    transform: translateX(24px);
}

.toggle-label {
    font-size: 0.875rem;
    color: var(--color-text);
}

/* Settings Warning */
.settings-warning {
    display: flex;
    align-items: flex-start;
    gap: var(--space-sm);
    padding: var(--space-md);
    background: var(--color-warning-bg);
    border: 1px solid var(--color-warning);
    border-radius: var(--radius-md);
    margin-top: var(--space-md);
    font-size: 0.75rem;
    color: var(--color-text);
}

.warning-icon {
    flex-shrink: 0;
}

/* Cache Stats */
.cache-stats {
    margin-bottom: var(--space-lg);
}

.cache-stats h4 {
    font-size: 0.875rem;
    font-weight: 600;
    color: var(--color-text);
    margin-bottom: var(--space-sm);
}

.cache-stats .stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
    gap: var(--space-sm);
    margin-bottom: 0;
}

.cache-stats .stat-item {
    display: flex;
    flex-direction: column;
    padding: var(--space-sm);
    background: var(--color-bg);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-sm);
}

.cache-stats .stat-label {
    font-size: 0.625rem;
    font-weight: 600;
    text-transform: uppercase;
    color: var(--color-text-muted);
    margin-bottom: 2px;
}

.cache-stats .stat-value {
    font-size: 0.75rem;
    color: var(--color-text);
}

.stat-quota {
    grid-column: span 2;
}

/* Cache Actions */
.cache-actions {
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-sm);
}

/* Button variants for settings */
.btn-warning {
    background: var(--color-warning);
    color: var(--color-bg);
    border-color: var(--color-warning);
}

.btn-warning:hover {
    background: var(--color-warning-hover, #e0a000);
}

.btn-danger {
    background: var(--color-error);
    color: white;
    border-color: var(--color-error);
}

.btn-danger:hover {
    background: var(--color-error-hover, #c82333);
}

/* Storage mode selector layout */
.storage-mode-selector {
    display: block;
    border-bottom: none;
}

/* ========================================
   Stats Panel
   ======================================== */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
    gap: var(--space-md);
    margin-bottom: var(--space-xl);
}

.stat-card {
    background: var(--color-bg);
    padding: var(--space-lg);
    border-radius: var(--radius-md);
    text-align: center;
    border: 1px solid var(--color-border);
}

.stat-card-value {
    font-size: 2rem;
    font-weight: 700;
    color: var(--color-primary);
    margin-bottom: var(--space-xs);
}

.stat-card-label {
    font-size: 0.875rem;
    color: var(--color-text-muted);
}

.stats-section {
    margin-bottom: var(--space-xl);
}

.stats-section:last-child {
    margin-bottom: 0;
}

.stats-section h3 {
    font-size: 1rem;
    font-weight: 600;
    color: var(--color-text);
    margin-bottom: var(--space-md);
}

.agents-list {
    display: flex;
    flex-direction: column;
    gap: var(--space-sm);
}

.agent-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--space-sm) var(--space-md);
    background: var(--color-bg);
    border-radius: var(--radius-sm);
    border: 1px solid var(--color-border);
}

.agent-name {
    font-weight: 500;
    color: var(--color-text);
}

.agent-count {
    font-size: 0.875rem;
    color: var(--color-text-muted);
}

.time-range {
    font-size: 0.875rem;
    color: var(--color-text-muted);
    line-height: 1.8;
}

/* Stats Dashboard Extended Styles */
.stats-panel {
    max-width: 1000px;
    margin: 0 auto;
}

.stats-panel .panel-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: var(--space-sm);
}

.stats-timestamp {
    font-size: 0.75rem;
    color: var(--color-text-dim);
}

/* Stats Loading State */
.stats-loading {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: var(--space-2xl);
    gap: var(--space-md);
}

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

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

/* Stats Error State */
.stats-error {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: var(--space-2xl);
    gap: var(--space-md);
    text-align: center;
}

.stats-error .error-icon {
    width: 48px;
    height: 48px;
    background: var(--color-error);
    color: white;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    font-weight: 700;
}

.stats-error .error-details {
    font-size: 0.875rem;
    color: var(--color-text-dim);
}

/* Time Range Display */
.stats-time-range .time-range-display {
    display: flex;
    align-items: center;
    gap: var(--space-md);
    flex-wrap: wrap;
}

.time-range-item {
    display: flex;
    flex-direction: column;
    gap: var(--space-xs);
}

.time-range-label {
    font-size: 0.75rem;
    color: var(--color-text-dim);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.time-range-value {
    font-weight: 500;
    color: var(--color-text);
}

.time-range-separator {
    color: var(--color-text-dim);
    font-size: 1.25rem;
}

.time-span-badge {
    background: var(--color-bg);
    padding: var(--space-xs) var(--space-sm);
    border-radius: var(--radius-sm);
    font-size: 0.75rem;
    color: var(--color-text-muted);
    border: 1px solid var(--color-border);
}

/* Timeline Chart */
.stats-timeline .timeline-controls {
    display: flex;
    gap: var(--space-xs);
    margin-bottom: var(--space-md);
}

.timeline-tab {
    background: var(--color-bg);
    border: 1px solid var(--color-border);
    padding: var(--space-xs) var(--space-sm);
    border-radius: var(--radius-sm);
    font-size: 0.75rem;
    color: var(--color-text-muted);
    cursor: pointer;
    transition: all var(--transition-fast);
}

.timeline-tab:hover {
    background: var(--color-bg-hover);
    color: var(--color-text);
}

.timeline-tab.active {
    background: var(--color-primary);
    border-color: var(--color-primary);
    color: white;
}

.timeline-chart {
    background: var(--color-bg);
    border-radius: var(--radius-md);
    padding: var(--space-md);
    border: 1px solid var(--color-border);
    min-height: 140px;
}

.timeline-svg {
    width: 100%;
    height: 120px;
}

.timeline-bar {
    fill: var(--color-primary);
    transition: fill var(--transition-fast);
}

.timeline-bar:hover {
    fill: var(--color-primary-hover);
}

.timeline-label {
    font-size: 10px;
    fill: var(--color-text-dim);
}

.timeline-chart .no-data {
    display: flex;
    align-items: center;
    justify-content: center;
    height: 100px;
    color: var(--color-text-dim);
    font-style: italic;
}

/* Stats Table */
.stats-table-wrapper {
    overflow-x: auto;
}

.stats-table {
    width: 100%;
    border-collapse: collapse;
    font-size: 0.875rem;
}

.stats-table th,
.stats-table td {
    padding: var(--space-sm) var(--space-md);
    text-align: left;
    border-bottom: 1px solid var(--color-border);
}

.stats-table th {
    font-weight: 600;
    color: var(--color-text-muted);
    background: var(--color-bg);
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.stats-table td.numeric,
.stats-table th.numeric {
    text-align: right;
    font-variant-numeric: tabular-nums;
}

.stats-table tbody tr:hover {
    background: var(--color-bg-hover);
}

.stats-more {
    margin-top: var(--space-sm);
    font-size: 0.75rem;
    color: var(--color-text-dim);
}

/* Agent Badge */
.agent-badge {
    display: inline-block;
    padding: var(--space-xs) var(--space-sm);
    border-radius: var(--radius-sm);
    font-size: 0.75rem;
    font-weight: 500;
    background: var(--color-bg-hover);
    color: var(--color-text);
}

.agent-badge.agent-claude-code {
    background: rgba(59, 130, 246, 0.2);
    color: #60a5fa;
}

.agent-badge.agent-codex {
    background: rgba(34, 197, 94, 0.2);
    color: #4ade80;
}

.agent-badge.agent-aider {
    background: rgba(168, 85, 247, 0.2);
    color: #c084fc;
}

.agent-badge.agent-cursor {
    background: rgba(245, 158, 11, 0.2);
    color: #fbbf24;
}

/* Workspace Name */
.workspace-name {
    font-family: var(--font-mono);
    font-size: 0.8125rem;
    max-width: 300px;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
    display: block;
}

/* Terms Cloud */
.terms-cloud {
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-sm);
    padding: var(--space-md);
    background: var(--color-bg);
    border-radius: var(--radius-md);
    border: 1px solid var(--color-border);
}

.term-tag {
    display: inline-block;
    padding: var(--space-xs) var(--space-sm);
    background: var(--color-bg-card);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-sm);
    color: var(--color-text);
    font-size: 0.875em;
    transition: all var(--transition-fast);
}

.term-tag:hover {
    background: var(--color-bg-hover);
    border-color: var(--color-primary);
}

/* Role Distribution Bars */
.role-bars {
    display: flex;
    flex-direction: column;
    gap: var(--space-sm);
}

.role-bar-item {
    display: grid;
    grid-template-columns: 100px 1fr 120px;
    gap: var(--space-md);
    align-items: center;
}

.role-name {
    font-weight: 500;
    color: var(--color-text);
    font-size: 0.875rem;
}

.role-bar-container {
    height: 8px;
    background: var(--color-bg);
    border-radius: var(--radius-sm);
    overflow: hidden;
    border: 1px solid var(--color-border);
}

.role-bar {
    height: 100%;
    border-radius: var(--radius-sm);
    transition: width var(--transition-normal);
}

.role-bar.role-user {
    background: var(--color-primary);
}

.role-bar.role-assistant {
    background: var(--color-secondary);
}

.role-bar.role-system {
    background: var(--color-text-dim);
}

.role-count {
    font-size: 0.75rem;
    color: var(--color-text-muted);
    text-align: right;
    font-variant-numeric: tabular-nums;
}

/* Responsive adjustments for stats */
@media (max-width: 768px) {
    .stats-panel .panel-header {
        flex-direction: column;
        align-items: flex-start;
    }

    .stats-time-range .time-range-display {
        flex-direction: column;
        align-items: flex-start;
    }

    .time-range-separator {
        transform: rotate(90deg);
    }

    .role-bar-item {
        grid-template-columns: 80px 1fr;
    }

    .role-count {
        grid-column: 1 / -1;
    }

    .timeline-tab {
        flex: 1;
        text-align: center;
    }
}

/* ========================================
   404 Not Found Panel
   ======================================== */
.not-found-panel {
    text-align: center;
    padding: var(--space-2xl);
}

.not-found-content {
    max-width: 400px;
    margin: 0 auto;
}

.not-found-icon {
    font-size: 4rem;
    font-weight: 700;
    color: var(--color-text-dim);
    margin-bottom: var(--space-lg);
}

.not-found-content h2 {
    font-size: 1.5rem;
    font-weight: 600;
    color: var(--color-text);
    margin-bottom: var(--space-md);
}

.not-found-content p {
    color: var(--color-text-muted);
    margin-bottom: var(--space-lg);
}

.not-found-content code {
    background: var(--color-bg-input);
    padding: var(--space-xs) var(--space-sm);
    border-radius: var(--radius-sm);
    font-family: var(--font-mono);
    font-size: 0.875rem;
}

/* ========================================
   Toast Notifications
   ======================================== */
.toast-container {
    position: fixed;
    bottom: var(--space-lg);
    right: var(--space-lg);
    display: flex;
    flex-direction: column;
    gap: var(--space-sm);
    z-index: 1000;
}

.toast {
    padding: var(--space-md) var(--space-lg);
    background: var(--color-bg-card);
    color: var(--color-text);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-lg);
    border-left: 4px solid var(--color-primary);
    animation: toast-slide-in 0.3s ease;
}

.toast-success {
    border-left-color: var(--color-success);
}

.toast-error {
    border-left-color: var(--color-error);
}

.toast-warning {
    border-left-color: var(--color-warning);
}

.toast-fade-out {
    animation: toast-fade-out 0.3s ease forwards;
}

@keyframes toast-slide-in {
    from {
        transform: translateX(100%);
        opacity: 0;
    }
    to {
        transform: translateX(0);
        opacity: 1;
    }
}

@keyframes toast-fade-out {
    from {
        transform: translateX(0);
        opacity: 1;
    }
    to {
        transform: translateX(100%);
        opacity: 0;
    }
}

/* ========================================
   Theme Support
   ======================================== */
[data-theme="light"] {
    --color-bg: #f8fafc;
    --color-bg-card: #ffffff;
    --color-bg-input: #f1f5f9;
    --color-bg-hover: #e2e8f0;
    --color-text: #1e293b;
    --color-text-muted: #64748b;
    --color-text-dim: #94a3b8;
    --color-border: #e2e8f0;
    --shadow-sm: 0 1px 2px 0 rgb(0 0 0 / 0.05);
    --shadow-md: 0 4px 6px -1px rgb(0 0 0 / 0.1), 0 2px 4px -2px rgb(0 0 0 / 0.1);
    --shadow-lg: 0 10px 15px -3px rgb(0 0 0 / 0.1), 0 4px 6px -4px rgb(0 0 0 / 0.1);
}

[data-theme="dark"] {
    --color-bg: #0f172a;
    --color-bg-card: #1e293b;
    --color-bg-input: #334155;
    --color-bg-hover: #475569;
    --color-text: #f1f5f9;
    --color-text-muted: #94a3b8;
    --color-text-dim: #64748b;
    --color-border: #334155;
    --shadow-sm: 0 1px 2px 0 rgb(0 0 0 / 0.3);
    --shadow-md: 0 4px 6px -1px rgb(0 0 0 / 0.3), 0 2px 4px -2px rgb(0 0 0 / 0.3);
    --shadow-lg: 0 10px 15px -3px rgb(0 0 0 / 0.3), 0 4px 6px -4px rgb(0 0 0 / 0.3);
}

/* ========================================
   Responsive Adjustments
   ======================================== */
@media (max-width: 640px) {
    .nav-bar {
        flex-direction: column;
        gap: var(--space-sm);
        padding: var(--space-sm);
    }

    .nav-links {
        width: 100%;
        justify-content: center;
    }

    .panel {
        margin: var(--space-md);
        padding: var(--space-md);
    }

    .stats-grid {
        grid-template-columns: 1fr;
    }

    .toast-container {
        left: var(--space-md);
        right: var(--space-md);
        bottom: var(--space-md);
    }

    .toast {
        width: 100%;
    }
}