/* ===============================
   Claude Code History Viewer - Styles
   =============================== */

/* Reset & Base */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    /* Dark Theme (Default) */
    --bg-primary: #0d1117;
    --bg-secondary: #161b22;
    --bg-tertiary: #21262d;
    --bg-hover: #30363d;
    --bg-active: #1f6feb;

    --border-color: #30363d;
    --border-light: #484f58;

    --text-primary: #f0f6fc;
    --text-secondary: #8b949e;
    --text-muted: #6e7681;

    --accent-blue: #58a6ff;
    --accent-green: #3fb950;
    --accent-yellow: #d29922;
    --accent-red: #f85149;
    --accent-purple: #a371f7;
    --accent-cyan: #39c5cf;
    --accent-info: #4dabf7;

    --user-bg: rgba(31, 107, 255, 0.1);
    --user-border: rgba(31, 107, 255, 0.3);
    --assistant-bg: rgba(48, 54, 61, 0.3);
    --assistant-border: var(--border-color);

    /* Dimensions */
    --sidebar-width: 300px;
    --header-height: 64px;
    --border-radius: 8px;
    --spacing-xs: 4px;
    --spacing-sm: 8px;
    --spacing-md: 10px;
    --spacing-lg: 10px;
    --spacing-xl: 10px;

    /* Shadows */
    --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.1);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
}

/* Light Theme */
[data-theme="light"] {
    --bg-primary: #ffffff;
    --bg-secondary: #f6f8fa;
    --bg-tertiary: #eaeef2;
    --bg-hover: #d0d7de;
    --bg-active: #0969da;

    --border-color: #d0d7de;
    --border-light: #babbbd;

    --text-primary: #24292f;
    --text-secondary: #57606a;
    --text-muted: #8c959f;

    --accent-blue: #0969da;
    --accent-green: #1a7f37;
    --accent-yellow: #9a6700;
    --accent-red: #cf222e;
    --accent-purple: #8250df;
    --accent-cyan: #1b7c83;
    --accent-info: #4dabf7;

    --user-bg: #f0f7ff;
    --user-border: #cce3ff;
    --assistant-bg: #f6f8fa;
    --assistant-border: #d0d7de;
}

body {
    font-family:
        -apple-system, BlinkMacSystemFont, "Segoe UI", "Noto Sans", Helvetica,
        Arial, sans-serif;
    font-size: 14px;
    line-height: 1.5;
    color: var(--text-primary);
    background: var(--bg-primary);
    overflow: hidden;
}

/* App Container */
.app-container {
    display: flex;
    height: 100vh;
    overflow: hidden;
}

/* ===============================
   Sidebar
   =============================== */
.sidebar {
    width: var(--sidebar-width);
    background: var(--bg-secondary);
    border-right: 1px solid var(--border-color);
    display: flex;
    flex-direction: column;
    overflow: hidden;
}

.sidebar-header {
    padding: var(--spacing-lg);
    border-bottom: 1px solid var(--border-color);
    background: linear-gradient(180deg, rgba(255, 255, 255, 0.03) 0%, transparent 100%);
}

/* Source Selector */
.source-selector {
    position: relative;
    margin-bottom: var(--spacing-sm);
}

.source-toggle {
    width: 100%;
    display: flex;
    align-items: center;
    justify-content: space-between;
    background: var(--bg-tertiary);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    padding: 10px 14px;
    cursor: pointer;
    font-size: 15px;
    font-weight: 700;
    color: var(--text-primary);
    text-align: left;
    transition: all 0.2s cubic-bezier(0.4, 0, 0.2, 1);
    box-shadow: var(--shadow-sm);
}

.source-toggle:hover {
    border-color: var(--accent-blue);
    background: var(--bg-hover);
    transform: translateY(-1px);
}

.source-toggle.active {
    border-color: var(--accent-blue);
    box-shadow: 0 0 0 3px rgba(31, 107, 255, 0.15);
}

.source-title {
    flex: 1;
    letter-spacing: -0.01em;
}

.dropdown-arrow {
    flex-shrink: 0;
    transition: transform 0.2s;
}

.source-toggle.active .dropdown-arrow {
    transform: rotate(180deg);
}

.source-dropdown {
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: var(--bg-tertiary);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius);
    margin-top: 4px;
    display: none;
    flex-direction: column;
    z-index: 100;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.3);
}

.source-dropdown.show {
    display: flex;
}

.source-item {
    padding: 10px 16px;
    cursor: pointer;
    transition: background 0.15s;
    font-size: 14px;
    color: var(--text-primary);
    width: 100%;
    background: transparent;
    border: none;
    text-align: left;
    font-family: inherit;
}

.source-item:first-child {
    border-radius: var(--border-radius) var(--border-radius) 0 0;
}

.source-item:last-child {
    border-radius: 0 0 var(--border-radius) var(--border-radius);
}

.source-item:hover {
    background: var(--bg-hover);
}

.source-item.selected {
    background: var(--bg-active);
    color: #fff;
}

.stats {
    margin-top: var(--spacing-lg);
    font-size: 10px;
    display: flex;
    gap: 8px;
    line-height: 1;
}

.stats span {
    flex: 1;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 6px;
    padding: 12px 4px;
    background: rgba(48, 54, 61, 0.2);
    border: 1px solid rgba(255, 255, 255, 0.05);
    border-radius: 12px;
    white-space: nowrap;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    color: var(--text-muted);
}

.stats span:hover {
    transform: translateY(-3px);
    color: var(--text-primary);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.2);
}

/* Specific Accent Colors */
/* Stats Colors using Variables */
.stats span:nth-child(1) {
    --st-bg: rgba(31, 107, 255, 0.08);
    --st-border: rgba(31, 107, 255, 0.2);
    --st-hover: rgba(31, 107, 255, 0.15);
    --st-icon: var(--accent-blue);
}

.stats span:nth-child(2) {
    --st-bg: rgba(63, 185, 80, 0.08);
    --st-border: rgba(63, 185, 80, 0.2);
    --st-hover: rgba(63, 185, 80, 0.15);
    --st-icon: var(--accent-green);
}

.stats span:nth-child(3) {
    --st-bg: rgba(163, 113, 247, 0.08);
    --st-border: rgba(163, 113, 247, 0.2);
    --st-hover: rgba(163, 113, 247, 0.15);
    --st-icon: var(--accent-purple);
}

.stats span {
    background: var(--st-bg);
    border-color: var(--st-border);
}

.stats span svg {
    color: var(--st-icon);
}

.stats span:hover {
    background: var(--st-hover);
}

/* Light Theme Stats Overrides */
[data-theme="light"] .stats span:nth-child(1) {
    --st-bg: #eff6ff;
    --st-icon: #3b82f6;
    --st-hover: #dbeafe;
}

[data-theme="light"] .stats span:nth-child(2) {
    --st-bg: #f0fdf4;
    --st-icon: #22c55e;
    --st-hover: #dcfce7;
}

[data-theme="light"] .stats span:nth-child(3) {
    --st-bg: #faf5ff;
    --st-icon: #a855f7;
    --st-hover: #f3e8ff;
}

[data-theme="light"] .stats span {
    color: var(--text-secondary);
    border-color: transparent;
}

[data-theme="light"] .stats span:hover {
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.05);
}

.index-status-card {
    margin-top: 12px;
    padding: 12px;
    border-radius: 12px;
    border: 1px solid var(--border-color);
    background: rgba(48, 54, 61, 0.16);
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.index-status-main {
    display: flex;
    align-items: center;
    gap: 10px;
}

.index-status-dot {
    width: 9px;
    height: 9px;
    border-radius: 999px;
    background: var(--accent-red);
    box-shadow: 0 0 0 3px rgba(248, 81, 73, 0.12);
    flex-shrink: 0;
}

.index-status-dot.status-ok {
    background: var(--accent-green);
    box-shadow: 0 0 0 3px rgba(63, 185, 80, 0.12);
}

.index-status-copy {
    min-width: 0;
    display: flex;
    flex-direction: column;
    gap: 2px;
}

.index-status-copy strong {
    font-size: 12px;
    color: var(--text-primary);
}

.index-status-copy span {
    font-size: 12px;
    color: var(--text-muted);
}

.index-status-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
}

.index-action-btn,
.filter-chip {
    border: 1px solid var(--border-color);
    background: var(--bg-tertiary);
    color: var(--text-secondary);
    border-radius: 999px;
    padding: 6px 10px;
    font: inherit;
    font-size: 12px;
    cursor: pointer;
    transition: all 0.2s ease;
}

.index-action-btn:hover:not(:disabled),
.filter-chip:hover {
    color: var(--text-primary);
    border-color: var(--accent-blue);
    background: var(--bg-hover);
}

.index-action-btn:disabled {
    opacity: 0.6;
    cursor: not-allowed;
}

.filter-chip.active {
    color: #fff;
    background: var(--bg-active);
    border-color: var(--bg-active);
}

.index-action-btn.active {
    color: #fff;
    background: var(--bg-active);
    border-color: var(--bg-active);
}

.index-switch-btn {
    min-width: 148px;
    border: 1px solid var(--border-color);
    background: var(--bg-tertiary);
    color: var(--text-secondary);
    border-radius: 999px;
    padding: 6px 8px 6px 12px;
    font: inherit;
    font-size: 12px;
    cursor: pointer;
    display: inline-flex;
    align-items: center;
    justify-content: space-between;
    gap: 10px;
    transition: background 0.2s ease, border-color 0.2s ease, color 0.2s ease;
}

.index-switch-btn:hover {
    color: var(--text-primary);
    border-color: var(--accent-blue);
    background: var(--bg-hover);
}

.index-switch-btn.active {
    color: var(--text-primary);
    border-color: rgba(88, 166, 255, 0.32);
    background: rgba(88, 166, 255, 0.08);
}

.index-switch-label {
    white-space: nowrap;
}

.index-switch-track {
    width: 34px;
    height: 20px;
    border-radius: 999px;
    background: rgba(148, 163, 184, 0.28);
    position: relative;
    flex-shrink: 0;
    transition: background 0.2s ease;
}

.index-switch-thumb {
    width: 14px;
    height: 14px;
    border-radius: 50%;
    background: #fff;
    position: absolute;
    top: 3px;
    left: 3px;
    box-shadow: 0 1px 3px rgba(15, 23, 42, 0.24);
    transition: transform 0.2s ease;
}

.index-switch-btn.active .index-switch-track {
    background: var(--bg-active);
}

.index-switch-btn.active .index-switch-thumb {
    transform: translateX(14px);
}

.index-locale-switch {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 4px;
    border: 1px solid var(--border-color);
    background: var(--bg-tertiary);
    border-radius: 999px;
}

.index-locale-label {
    padding-left: 8px;
    font-size: 12px;
    color: var(--text-secondary);
    white-space: nowrap;
}

.index-locale-segments {
    display: inline-flex;
    align-items: center;
    gap: 4px;
}

.index-locale-btn {
    border: none;
    background: transparent;
    color: var(--text-secondary);
    border-radius: 999px;
    padding: 6px 10px;
    font: inherit;
    font-size: 12px;
    cursor: pointer;
    transition: background 0.2s ease, color 0.2s ease;
}

.index-locale-btn:hover {
    color: var(--text-primary);
    background: var(--bg-hover);
}

.index-locale-btn.active {
    color: #fff;
    background: var(--bg-active);
}



/* Header Actions */
.header-actions {
    position: absolute;
    top: calc((var(--header-height) - 34px) / 2);
    right: var(--spacing-lg);
    display: flex;
    gap: var(--spacing-sm);
    z-index: 1000;
}

.action-btn {
    width: 34px;
    height: 34px;
    background: var(--bg-tertiary);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    color: var(--text-secondary);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.2s cubic-bezier(0.4, 0, 0.2, 1);
}

.action-btn:hover {
    background: var(--bg-hover);
    color: var(--text-primary);
    border-color: var(--accent-blue);
    transform: translateY(-1px);
}

/* Search Modal */
.search-modal {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.4);
    backdrop-filter: blur(8px);
    z-index: 2000;
    display: none;
    align-items: flex-start;
    justify-content: center;
    padding-top: 10vh;
}

.search-modal.active {
    display: flex;
}

.index-modal {
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.45);
    backdrop-filter: blur(8px);
    z-index: 2050;
    display: none;
    align-items: flex-start;
    justify-content: center;
    padding: 72px 24px 24px;
}

.index-modal.active {
    display: flex;
}

.confirm-modal {
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.45);
    backdrop-filter: blur(8px);
    z-index: 2100;
    display: none;
    align-items: center;
    justify-content: center;
    padding: 24px;
}

.confirm-modal.active {
    display: flex;
}

.confirm-card {
    width: 100%;
    max-width: 440px;
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: 20px;
    box-shadow: var(--shadow-lg);
    padding: 24px;
    animation: modal-slide-down 0.2s ease-out;
}

.confirm-badge {
    width: 42px;
    height: 42px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 999px;
    background: rgba(248, 81, 73, 0.14);
    color: var(--accent-red);
    margin-bottom: 16px;
}

.confirm-card h3 {
    font-size: 22px;
    margin-bottom: 10px;
}

.confirm-card p {
    color: var(--text-secondary);
    margin-bottom: 16px;
    line-height: 1.6;
}

.confirm-meta {
    display: flex;
    flex-direction: column;
    gap: 8px;
    background: var(--bg-tertiary);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    padding: 12px 14px;
    color: var(--text-muted);
    font-size: 12px;
    margin-bottom: 18px;
}

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

.search-container {
    width: 100%;
    max-width: 650px;
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: 16px;
    box-shadow: var(--shadow-lg), 0 0 0 1px rgba(255, 255, 255, 0.05);
    overflow: hidden;
    animation: modal-slide-down 0.3s cubic-bezier(0, 0, 0.2, 1);
}

.index-modal-card {
    width: min(900px, 100%);
    max-height: calc(100vh - 96px);
    display: flex;
    flex-direction: column;
    gap: 18px;
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: 20px;
    box-shadow: var(--shadow-lg);
    padding: 22px;
    overflow: hidden;
    animation: modal-slide-down 0.25s ease-out;
}

.index-modal-header {
    display: flex;
    align-items: flex-start;
    justify-content: space-between;
    gap: 16px;
}

.index-modal-title {
    min-width: 0;
}

.index-modal-title-row {
    display: flex;
    align-items: center;
    gap: 10px;
    margin-bottom: 4px;
}

.index-modal-title h3 {
    font-size: 20px;
}

.index-modal-title p {
    color: var(--text-secondary);
    font-size: 13px;
}

.index-tab-bar {
    display: flex;
    align-items: center;
    gap: 8px;
}

.index-tab-btn {
    border: 1px solid var(--border-color);
    background: var(--bg-tertiary);
    color: var(--text-secondary);
    border-radius: 999px;
    padding: 8px 14px;
    font: inherit;
    font-size: 13px;
    cursor: pointer;
    transition: all 0.2s ease;
}

.index-tab-btn:hover {
    color: var(--text-primary);
    border-color: var(--accent-blue);
    background: var(--bg-hover);
}

.index-tab-btn.active {
    color: #fff;
    background: var(--bg-active);
    border-color: var(--bg-active);
}

.index-modal-summary {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.index-summary-grid {
    display: grid;
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 10px;
}

.index-summary-card {
    min-width: 0;
    display: flex;
    flex-direction: column;
    gap: 6px;
    position: relative;
    padding: 12px 14px;
    border-radius: 14px;
    border: 1px solid var(--border-color);
    background: var(--bg-tertiary);
}

.index-summary-label {
    font-size: 11px;
    letter-spacing: 0.02em;
    text-transform: uppercase;
    color: var(--text-muted);
}

.index-summary-value,
.index-summary-card strong {
    color: var(--text-primary);
    word-break: break-all;
}

.index-summary-subtle {
    color: var(--text-secondary);
    font-size: 12px;
}

.index-summary-hover {
    position: absolute;
    top: 8px;
    right: 10px;
}

.index-summary-hover-chip {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-height: 24px;
    padding: 0 9px;
    border-radius: 999px;
    border: 1px solid rgba(148, 163, 184, 0.28);
    background: rgba(148, 163, 184, 0.14);
    color: var(--text-secondary);
    font-size: 11px;
    cursor: default;
}

.index-summary-tooltip {
    position: absolute;
    top: calc(100% + 8px);
    right: 0;
    min-width: 240px;
    display: none;
    flex-direction: column;
    gap: 8px;
    padding: 12px;
    border-radius: 12px;
    border: 1px solid var(--border-color);
    background: var(--bg-primary);
    box-shadow: var(--shadow-lg);
    z-index: 20;
}

.index-summary-hover:hover .index-summary-tooltip,
.index-summary-hover:focus-within .index-summary-tooltip {
    display: flex;
}

.index-summary-tooltip-row {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
}

.index-summary-tooltip-row span {
    color: var(--text-secondary);
    font-size: 12px;
}

.index-summary-tooltip-row strong {
    color: var(--text-primary);
    font-size: 12px;
    text-align: right;
}

.index-source-grid {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 10px;
}

.index-source-card {
    display: flex;
    flex-direction: column;
    gap: 8px;
    padding: 12px 14px;
    border-radius: 14px;
    border: 1px solid var(--border-color);
    background: var(--bg-primary);
}

.index-source-head,
.index-source-metrics {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
}

.index-source-head strong {
    color: var(--text-primary);
}

.index-source-head span,
.index-source-metrics span {
    color: var(--text-secondary);
    font-size: 12px;
}

.index-library-section {
    min-height: 0;
    display: flex;
    flex-direction: column;
    gap: 12px;
    overflow: hidden;
}

.auth-shell {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 24px;
    background:
        radial-gradient(circle at top, rgba(88, 166, 255, 0.16), transparent 40%),
        linear-gradient(180deg, var(--bg-primary), var(--bg-secondary));
}

.auth-theme-toggle {
    position: absolute;
    top: 24px;
    right: 24px;
}

.auth-card {
    width: 100%;
    max-width: 420px;
    padding: 28px;
    border-radius: 20px;
    border: 1px solid var(--border-color);
    background: rgba(22, 27, 34, 0.92);
    box-shadow: var(--shadow-lg);
    display: flex;
    flex-direction: column;
    gap: 16px;
}

[data-theme="light"] .auth-card {
    background: rgba(255, 255, 255, 0.92);
}

.auth-card-loading {
    text-align: center;
}

.auth-card h1 {
    font-size: 28px;
    line-height: 1.1;
}

.auth-card p {
    color: var(--text-secondary);
    line-height: 1.6;
}

.auth-badge {
    display: inline-flex;
    align-self: flex-start;
    padding: 6px 12px;
    border-radius: 999px;
    background: rgba(88, 166, 255, 0.12);
    border: 1px solid rgba(88, 166, 255, 0.24);
    color: var(--accent-blue);
    font-size: 12px;
    font-weight: 700;
    letter-spacing: 0.04em;
    text-transform: uppercase;
}

.auth-form {
    display: flex;
    flex-direction: column;
    gap: 14px;
}

.auth-field {
    display: flex;
    flex-direction: column;
    gap: 6px;
    color: var(--text-secondary);
    font-size: 13px;
}

.auth-field input {
    width: 100%;
    border: 1px solid var(--border-color);
    background: var(--bg-primary);
    color: var(--text-primary);
    border-radius: 12px;
    padding: 12px 14px;
    font: inherit;
    outline: none;
}

.auth-field input:focus {
    border-color: var(--accent-blue);
    box-shadow: 0 0 0 3px rgba(88, 166, 255, 0.12);
}

.auth-error {
    border-radius: 12px;
    border: 1px solid rgba(248, 81, 73, 0.28);
    background: rgba(248, 81, 73, 0.12);
    color: var(--accent-red);
    padding: 10px 12px;
    font-size: 13px;
}

.auth-submit {
    width: 100%;
    min-height: 46px;
    border: 1px solid transparent;
    border-radius: 12px;
    background: linear-gradient(135deg, var(--bg-active), var(--accent-blue));
    color: #fff;
    font: inherit;
    font-weight: 700;
    cursor: pointer;
    transition: transform 0.2s ease, box-shadow 0.2s ease, opacity 0.2s ease;
    box-shadow: var(--shadow-md);
}

.auth-submit:hover:not(:disabled) {
    transform: translateY(-1px);
}

.auth-submit:disabled {
    opacity: 0.7;
    cursor: wait;
}

.index-library-header {
    display: flex;
    align-items: flex-end;
    justify-content: space-between;
    gap: 12px;
}

.index-library-header h4 {
    font-size: 16px;
    margin-bottom: 2px;
}

.index-library-header p {
    color: var(--text-secondary);
    font-size: 13px;
}

.index-library-filters {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 12px;
}

.index-filter-field {
    display: flex;
    flex-direction: column;
    gap: 6px;
    font-size: 12px;
    color: var(--text-secondary);
}

.index-filter-select {
    width: 100%;
    border: 1px solid var(--border-color);
    background: var(--bg-primary);
    color: var(--text-primary);
    border-radius: 12px;
    padding: 10px 12px;
    font: inherit;
    outline: none;
}

.index-filter-select:focus {
    border-color: var(--accent-blue);
    box-shadow: 0 0 0 3px rgba(88, 166, 255, 0.12);
}

.index-library-list {
    min-height: 0;
    overflow-y: auto;
    display: flex;
    flex-direction: column;
    gap: 10px;
    padding-right: 4px;
}

.index-library-item {
    width: 100%;
    display: flex;
    flex-direction: column;
    gap: 10px;
    padding: 14px 16px;
    border-radius: 14px;
    border: 1px solid var(--border-color);
    background: var(--bg-primary);
    color: inherit;
    text-align: left;
    cursor: pointer;
    transition: all 0.2s ease;
}

.index-library-item:hover {
    border-color: var(--accent-blue);
    background: var(--bg-hover);
    transform: translateY(-1px);
}

.index-library-item-top {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 10px;
}

.index-library-item-top strong {
    min-width: 0;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
    color: var(--text-primary);
}

.index-provider-pill {
    flex-shrink: 0;
    border-radius: 999px;
    padding: 4px 10px;
    background: rgba(88, 166, 255, 0.12);
    border: 1px solid rgba(88, 166, 255, 0.24);
    color: var(--accent-blue);
    font-size: 12px;
    font-weight: 600;
}

.index-library-meta,
.index-library-extra {
    display: flex;
    align-items: center;
    gap: 12px;
    flex-wrap: wrap;
}

.index-library-extra {
    color: var(--text-muted);
    font-size: 12px;
}

.index-library-empty {
    padding: 32px 16px;
    border-radius: 14px;
    border: 1px dashed var(--border-color);
    background: var(--bg-tertiary);
    color: var(--text-muted);
    text-align: center;
}

.index-library-pagination {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
    padding-top: 4px;
}

.index-pagination-info {
    color: var(--text-secondary);
    font-size: 13px;
}

.index-pagination-actions {
    display: flex;
    align-items: center;
    gap: 8px;
}

.index-page-btn {
    border: 1px solid var(--border-color);
    background: var(--bg-tertiary);
    color: var(--text-primary);
    border-radius: 999px;
    padding: 8px 14px;
    font: inherit;
    cursor: pointer;
    transition: all 0.2s ease;
}

.index-page-btn:hover:not(:disabled) {
    border-color: var(--accent-blue);
    color: var(--accent-blue);
}

.index-page-btn:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

@keyframes modal-slide-down {
    from {
        transform: translateY(-20px);
        opacity: 0;
    }

    to {
        transform: translateY(0);
        opacity: 1;
    }
}

.search-input-wrapper {
    display: flex;
    align-items: center;
    padding: var(--spacing-lg);
    border-bottom: 1px solid var(--border-color);
    gap: var(--spacing-md);
}



.search-container input {
    flex: 1;
    background: none;
    border: none;
    color: var(--text-primary);
    font-size: 16px;
    outline: none;
    padding: 4px 0;
}

.btn-close-search {
    background: var(--bg-tertiary);
    border: 1px solid var(--border-color);
    border-radius: 6px;
    padding: 4px 10px;
    color: var(--text-muted);
    font-size: 12px;
    cursor: pointer;
}

.search-filter-bar {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 10px;
    padding: 10px 16px 0;
    flex-wrap: wrap;
}

.search-filter-group {
    display: flex;
    gap: 8px;
    flex-wrap: wrap;
}

.search-filter-group-right {
    margin-left: auto;
    align-items: center;
    justify-content: flex-end;
}

.search-results-count {
    color: var(--text-muted);
    font-size: 12px;
    white-space: nowrap;
}

.search-modal-results {
    max-height: 60vh;
    overflow-y: auto;
    padding: var(--spacing-sm);
}

.search-modal-results:empty::after {
    content: "";
    display: none;
}

.search-empty-state {
    padding: var(--spacing-xl);
    text-align: center;
}

/* Projects Container */
.sidebar-content {
    flex: 1;
    overflow-y: auto;
    padding: 0;
}

.projects-container {
    flex: 1;
    overflow-y: auto;
}

.section-title {
    padding: var(--spacing-md) var(--spacing-lg);
    font-size: 11px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    color: var(--text-muted);
}

.projects-list {
    display: flex;
    flex-direction: column;
    gap: 6px;
    padding: 8px 10px 14px;
}

.project-item {
    padding: 10px 12px;
    cursor: pointer;
    border: none;
    border-radius: 14px;
    transition: background 0.15s ease, transform 0.15s ease;
    display: flex;
    align-items: center;
    justify-content: space-between;
    width: 100%;
    gap: 10px;
    background: transparent;
    text-align: left;
    font: inherit;
    color: inherit;
}

.project-item:hover {
    background: var(--bg-hover);
    transform: translateY(-1px);
}

.project-item.active {
    background: var(--bg-hover);
}

.project-item-main {
    min-width: 0;
    display: flex;
    align-items: center;
    gap: 10px;
    flex: 1;
}

.project-item-icon {
    flex-shrink: 0;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    color: var(--text-secondary);
}

.project-name {
    font-weight: 500;
    color: var(--text-primary);
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.project-count {
    flex-shrink: 0;
    font-size: 12px;
    color: var(--text-muted);
    background: var(--bg-tertiary);
    padding: 2px 8px;
    border-radius: 10px;
}

/* ===============================
   Main Content
   =============================== */
.main-content {
    flex: 1;
    display: flex;
    flex-direction: column;
    overflow: hidden;
    background: var(--bg-primary);
    position: relative;
}

/* Theme Toggle Button */
/* Theme Toggle is now part of .header-actions */
.theme-toggle {
    position: static;
    /* Let flexbox handle it */
    width: 34px;
    height: 34px;
    background: var(--bg-tertiary);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    color: var(--text-secondary);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.2s cubic-bezier(0.4, 0, 0.2, 1);
}

.theme-toggle:hover {
    background: var(--bg-hover);
    color: var(--text-primary);
    border-color: var(--accent-blue);
}



.view {
    display: none;
    flex-direction: column;
    height: 100%;
    overflow: hidden;
}

.view.active {
    display: flex;
}

/* View Header */
.view-header {
    padding: 0 var(--spacing-lg);
    height: var(--header-height);
    border-bottom: 1px solid var(--border-color);
    display: flex;
    align-items: center;
    gap: var(--spacing-lg);
    background: var(--bg-secondary);
    backdrop-filter: blur(8px);
    position: sticky;
    top: 0;
    z-index: 5;
}

.view-header h2 {
    font-size: 16px;
    font-weight: 600;
    color: var(--text-primary);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.view-header-actions {
    margin-left: auto;
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
}

.index-toggle-btn {
    position: relative;
}

.index-toggle-btn::after {
    content: "";
    position: absolute;
    top: 6px;
    right: 6px;
    width: 7px;
    height: 7px;
    border-radius: 999px;
    background: var(--accent-red);
    box-shadow: 0 0 0 2px var(--bg-tertiary);
}

.index-toggle-btn.index-ready::after {
    background: var(--accent-green);
}

@media (max-width: 900px) {
    .index-summary-grid {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }

    .index-source-grid {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }
}

@media (max-width: 640px) {
    .index-modal {
        padding: 56px 12px 12px;
    }

    .index-modal-card {
        padding: 16px;
    }

    .index-modal-header,
    .index-library-header,
    .index-library-item-top,
    .index-library-pagination,
    .search-filter-group-right {
        flex-direction: column;
        align-items: flex-start;
    }

    .index-summary-grid {
        grid-template-columns: 1fr;
    }

    .index-source-grid {
        grid-template-columns: 1fr;
    }

    .index-library-filters {
        grid-template-columns: 1fr;
    }
}

.view-info {
    font-size: 12px;
    color: var(--text-muted);
    background: var(--bg-tertiary);
    padding: 4px 10px;
    border-radius: 20px;
}

/* Buttons */
.btn-secondary {
    background: var(--bg-tertiary);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius);
    padding: 8px 16px;
    color: var(--text-primary);
    font-size: 13px;
    cursor: pointer;
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    transition: all 0.2s;
}

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

.btn-danger {
    background: rgba(248, 81, 73, 0.12);
    border: 1px solid rgba(248, 81, 73, 0.3);
    border-radius: var(--border-radius);
    padding: 8px 14px;
    color: var(--accent-red);
    font-size: 13px;
    font-weight: 600;
    line-height: 1;
    cursor: pointer;
    display: flex;
    align-items: center;
    gap: 7px;
    white-space: nowrap;
    transition: all 0.2s;
}

.btn-danger:hover:not(:disabled) {
    background: rgba(248, 81, 73, 0.18);
    border-color: rgba(248, 81, 73, 0.45);
    transform: translateY(-1px);
}

.btn-danger:disabled,
.btn-secondary:disabled {
    opacity: 0.6;
    cursor: not-allowed;
    transform: none;
}

/* Conversations List */
.conversations-list {
    flex: 1;
    overflow-y: auto;
    padding: var(--spacing-md);
}

.conversation-item {
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius);
    padding: var(--spacing-lg);
    margin-bottom: var(--spacing-sm);
    cursor: pointer;
    transition: all 0.2s;
    width: 100%;
    text-align: left;
    font: inherit;
    color: inherit;
    display: block;
}

.conversation-item:hover {
    border-color: var(--accent-blue);
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.2);
}

.conversation-title {
    font-weight: 500;
    color: var(--text-primary);
    margin-bottom: var(--spacing-sm);
    overflow: hidden;
    text-overflow: ellipsis;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    line-clamp: 2;
}

.conversation-session-id {
    color: var(--text-muted);
    font-weight: 400;
}

.conversation-snippet {
    margin-bottom: var(--spacing-sm);
    color: var(--text-secondary);
    font-size: 13px;
    line-height: 1.45;
}

.conversation-snippet mark {
    background: rgba(210, 153, 34, 0.22);
    color: var(--text-primary);
    padding: 0 2px;
    border-radius: 4px;
}

.conversation-meta {
    display: flex;
    align-items: center;
    flex-wrap: wrap;
    gap: var(--spacing-md);
    font-size: 13px;
    color: var(--text-secondary);
    flex: 1;
    overflow: hidden;
}

.conversation-meta span {
    white-space: nowrap;
    display: inline-flex;
    align-items: center;
    gap: 4px;
}

.conversation-meta span:last-child {
    color: var(--text-muted);
    max-width: 100%;
}

/* ===============================
   Conversation Detail
   =============================== */
.conversation-detail {
    flex: 1;
    overflow-y: auto;
    padding: var(--spacing-xl) calc(var(--spacing-xl) + 44px) var(--spacing-xl) var(--spacing-xl);
    scroll-behavior: smooth;
}

.detail-progress-nav {
    position: fixed;
    top: 148px;
    right: 12px;
    transform: none;
    width: 28px;
    min-height: 28px;
    z-index: 1050;
    pointer-events: auto;
    overflow: visible;
    transition: width 0.18s ease;
}

.detail-progress-nav.expanded {
    width: 348px;
}

.detail-progress-anchor {
    position: absolute;
    right: 0;
    transform: translateY(-50%);
    width: 22px;
    height: 2px;
    padding: 0;
    border: none;
    border-radius: 999px;
    background: rgba(148, 163, 184, 0.42);
    box-shadow: none;
    cursor: pointer;
    pointer-events: auto;
    transition: width 0.18s ease, background 0.18s ease, opacity 0.18s ease, height 0.18s ease;
}

.detail-progress-anchor:hover,
.detail-progress-anchor:focus-visible {
    width: 24px;
    background: rgba(71, 85, 105, 0.78);
}

.detail-progress-anchor.active {
    width: 24px;
    height: 3px;
    background: rgba(31, 41, 55, 0.9);
}

.detail-progress-directory {
    position: absolute;
    top: 0;
    right: 34px;
    transform: translateX(10px);
    width: 300px;
    max-height: min(72vh, 620px);
    padding: 12px;
    border: 1px solid rgba(148, 163, 184, 0.22);
    border-radius: 16px;
    background: rgba(22, 27, 34, 0.96);
    color: var(--text-primary);
    box-shadow: 0 18px 42px rgba(15, 23, 42, 0.16);
    opacity: 0;
    visibility: hidden;
    pointer-events: none;
    transition: opacity 0.18s ease, transform 0.18s ease, visibility 0.18s ease;
}

.detail-progress-nav:hover .detail-progress-directory,
.detail-progress-nav:focus-within .detail-progress-directory {
    opacity: 1;
    visibility: visible;
    pointer-events: auto;
    transform: translateX(0);
}

.detail-progress-directory-title {
    margin-bottom: 8px;
    color: var(--text-muted);
    font-size: 11px;
    font-weight: 600;
    letter-spacing: 0.04em;
}

.detail-progress-directory-list {
    display: flex;
    flex-direction: column;
    gap: 6px;
    max-height: calc(min(72vh, 620px) - 44px);
    overflow-y: auto;
    padding-right: 6px;
    scrollbar-width: thin;
    scrollbar-color: rgba(148, 163, 184, 0.45) transparent;
    scrollbar-gutter: stable;
}

.detail-progress-directory-list::-webkit-scrollbar {
    width: 6px;
}

.detail-progress-directory-list::-webkit-scrollbar-track {
    background: transparent;
}

.detail-progress-directory-list::-webkit-scrollbar-thumb {
    background: rgba(148, 163, 184, 0.42);
    border-radius: 999px;
}

.detail-progress-directory-list::-webkit-scrollbar-thumb:hover {
    background: rgba(148, 163, 184, 0.58);
}

.detail-progress-item {
    display: flex;
    align-items: flex-start;
    gap: 10px;
    width: 100%;
    padding: 7px 9px;
    border: none;
    border-radius: 12px;
    background: transparent;
    color: inherit;
    text-align: left;
    cursor: pointer;
    transition: background 0.18s ease, color 0.18s ease;
}

.detail-progress-item:hover,
.detail-progress-item:focus-visible {
    background: rgba(148, 163, 184, 0.12);
}

.detail-progress-item.active {
    background: rgba(59, 130, 246, 0.1);
    color: #1d4ed8;
}

.detail-progress-item-line {
    flex: 0 0 18px;
    height: 2px;
    margin-top: 8px;
    border-radius: 999px;
    background: rgba(138, 138, 138, 0.32);
}

.detail-progress-item.active .detail-progress-item-line {
    background: currentColor;
}

.detail-progress-item-label {
    min-width: 0;
    font-size: 12px;
    line-height: 1.4;
    word-break: break-word;
    display: -webkit-box;
    -webkit-box-orient: vertical;
    -webkit-line-clamp: 3;
    overflow: hidden;
}

.detail-refresh-fab {
    position: fixed;
    right: 24px;
    bottom: 24px;
    z-index: 1100;
    width: 48px;
    height: 48px;
    padding: 0;
    border: 1px solid rgba(255, 255, 255, 0.12);
    border-radius: 999px;
    background: linear-gradient(135deg, var(--bg-active), var(--accent-blue));
    color: #fff;
    font: inherit;
    box-shadow: var(--shadow-lg);
    cursor: pointer;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    transition: transform 0.2s ease, box-shadow 0.2s ease, opacity 0.2s ease;
}

.detail-refresh-fab:hover:not(:disabled) {
    transform: translateY(-2px);
    box-shadow: 0 14px 32px rgba(0, 0, 0, 0.28);
}

.detail-refresh-fab:disabled {
    cursor: wait;
    opacity: 0.8;
}

.fab-icon-spinning {
    animation: spin 1s linear infinite;
}

.conversation-header {
    margin: 0 auto var(--spacing-xl);
    padding: var(--spacing-lg);
    background: var(--bg-secondary);
    border-radius: 12px;
    border: 1px solid var(--border-color);
    max-width: 900px;
}

.conversation-header h3 {
    font-size: 24px;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: var(--spacing-sm);
    line-height: 1.3;
}

.conversation-info {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-md);
    font-size: 12px;
    color: var(--text-muted);
}

.conversation-info span {
    display: flex;
    align-items: center;
    gap: 4px;
}

.conversation-info-btn {
    border: none;
    background: transparent;
    color: inherit;
    font: inherit;
    display: inline-flex;
    align-items: center;
    gap: 6px;
    cursor: pointer;
    padding: 2px 6px;
    border-radius: 8px;
    line-height: 1;
    transition: background 0.2s ease, color 0.2s ease;
}

.conversation-info-btn:hover {
    background: var(--bg-tertiary);
    color: var(--text-primary);
}

.icon-inline {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    line-height: 0;
    flex-shrink: 0;
}

.icon-inline svg {
    display: block;
}

.folder-info-icon {
    color: var(--text-secondary);
}

.detail-card {
    margin-top: 14px;
    padding: 12px 14px;
    background: var(--bg-tertiary);
    border: 1px solid var(--border-color);
    border-radius: 12px;
}

.detail-card-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
    margin-bottom: 8px;
}

.detail-card-label {
    font-size: 11px;
    font-weight: 700;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    color: var(--text-muted);
}

.detail-card-actions {
    display: flex;
    align-items: center;
    gap: 8px;
}

.detail-card-value {
    color: var(--text-primary);
    word-break: break-all;
    line-height: 1.5;
}

.detail-card-code {
    font-family: "SFMono-Regular", Consolas, "Liberation Mono", Menlo, monospace;
    font-size: 13px;
}

.detail-card-hint {
    margin-top: 10px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
    flex-wrap: wrap;
    color: var(--text-muted);
    font-size: 12px;
}

.detail-link-btn {
    border: none;
    background: none;
    color: var(--accent-blue);
    cursor: pointer;
    font: inherit;
    padding: 0;
}

.detail-link-btn:hover {
    text-decoration: underline;
}

.inline-icon-btn {
    width: 28px;
    height: 28px;
    border: 1px solid var(--border-color);
    border-radius: 8px;
    background: var(--bg-secondary);
    color: var(--text-secondary);
    display: inline-flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: all 0.2s ease;
}

.inline-icon-btn:hover {
    color: var(--text-primary);
    border-color: var(--accent-blue);
    background: var(--bg-hover);
}

.menu-anchor {
    position: relative;
    display: inline-flex;
}

.project-menu-anchor {
    align-items: center;
}

.hover-menu {
    position: absolute;
    top: calc(100% + 8px);
    right: 18px;
    min-width: 188px;
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: 10px;
    box-shadow: var(--shadow-lg);
    padding: 6px;
    display: none;
    flex-direction: column;
    gap: 4px;
    z-index: 20;
}

.project-menu-anchor .hover-menu {
    top: calc(100% + 6px);
    left: 0;
    right: auto;
}

.menu-anchor:hover .hover-menu,
.menu-anchor:focus-within .hover-menu {
    display: flex;
}

.hover-menu.show-menu {
    display: flex;
}

.hover-menu button {
    border: none;
    background: transparent;
    color: var(--text-primary);
    text-align: left;
    padding: 8px 10px;
    border-radius: 8px;
    cursor: pointer;
    font: inherit;
    white-space: nowrap;
}

.hover-menu button:hover {
    background: var(--bg-hover);
}

/* Messages */
.messages-container {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-xl);
    max-width: 900px;
    margin: 0 auto;
}

.message {
    border-radius: 16px;
    overflow: hidden;
    position: relative;
    border: 1px solid transparent;
    transition: transform 0.2s cubic-bezier(0.175, 0.885, 0.32, 1.275);
}

/* Conversations Detail Container */
.messages-container {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-xl);
    max-width: 1000px;
    margin: 0 auto;
    padding: var(--spacing-xl) var(--spacing-lg);
}

.message:hover {
    transform: translateY(-2px);
}

.message-collapsible {
    overflow: hidden;
}

.message-collapsible > summary {
    list-style: none;
    cursor: pointer;
}

.message-collapsible > summary::-webkit-details-marker {
    display: none;
}

.message-collapsible[open] .message-header {
    border-bottom-color: rgba(0, 0, 0, 0.05);
}

.message-collapsible-body {
    padding: 8px 0 8px;
}

.message-collapsible-meta-row {
    display: flex;
    align-items: center;
    justify-content: flex-end;
    gap: 12px;
    padding: 0 16px 4px;
    min-height: 32px;
}

.message-collapsible-meta-row .tool-call-meta {
    flex: 1;
    min-width: 0;
    padding: 0;
}

.tool-group-message {
    margin-right: auto;
    width: 100%;
    background: linear-gradient(180deg, rgba(148, 163, 184, 0.08) 0%, rgba(148, 163, 184, 0.03) 100%);
    border: 1px solid rgba(148, 163, 184, 0.18);
    box-shadow: none;
}

.tool-group-message:hover {
    transform: none;
}

.tool-group-summary {
    list-style: none;
    cursor: pointer;
    display: flex;
    flex-direction: column;
    gap: 8px;
    padding: 12px 16px;
}

.tool-group-summary::-webkit-details-marker {
    display: none;
}

.tool-group-summary-main {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
}

.tool-group-summary-copy {
    min-width: 0;
    display: flex;
    align-items: center;
    gap: 10px;
    flex-wrap: wrap;
}

.tool-group-title {
    color: var(--text-secondary);
    font-size: 14px;
    font-weight: 600;
    letter-spacing: -0.01em;
}

.tool-group-body {
    display: flex;
    flex-direction: column;
    gap: 8px;
    padding: 10px;
    border-top: 1px solid rgba(148, 163, 184, 0.16);
}

.message-in-tool-group {
    margin: 0;
}

.message.search-hit {
    border-color: var(--accent-yellow);
    box-shadow: 0 0 0 2px rgba(210, 153, 34, 0.18), var(--shadow-md);
}

.message.search-hit .message-header {
    background: rgba(210, 153, 34, 0.08);
}

.user-message {
    background: var(--user-bg);
    border: 1px solid var(--user-border);
    margin-left: auto;
    max-width: 85%;
    box-shadow: var(--shadow-sm);
}

.assistant-message {
    background: var(--bg-tertiary);
    /* 使用更深的背景色区分 */
    border: 1px solid var(--border-light);
    margin-right: auto;
    width: 100%;
    box-shadow: var(--shadow-md);
    border-left: 4px solid var(--accent-blue);
    /* 添加蓝色边框强调 */
}

.tool-call-message,
.tool-result-message,
.instruction-message,
.developer-message {
    margin-right: auto;
    width: 100%;
    box-shadow: var(--shadow-sm);
}

.tool-call-message {
    background: rgba(88, 166, 255, 0.06);
    border: 1px solid rgba(88, 166, 255, 0.22);
    border-left: 4px solid var(--accent-blue);
}

.tool-result-message {
    background: rgba(46, 160, 67, 0.06);
    border: 1px solid rgba(46, 160, 67, 0.22);
    border-left: 4px solid var(--accent-green);
}

.instruction-message {
    background: rgba(210, 153, 34, 0.06);
    border: 1px solid rgba(210, 153, 34, 0.22);
    border-left: 4px solid var(--accent-yellow);
}

.developer-message {
    background: rgba(210, 153, 34, 0.06);
    border: 1px solid rgba(210, 153, 34, 0.22);
    border-left: 4px solid var(--accent-yellow);
}

.message-header {
    padding: 4px 20px;
    background: rgba(0, 0, 0, 0.02);
    border-bottom: 1px solid rgba(0, 0, 0, 0.05);
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: var(--spacing-sm);
}

.user-message .message-header {
    justify-content: space-between;
}

.message-header-main,
.message-header-side {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
}

.message-header-side {
    margin-left: auto;
}

.message-ts {
    color: var(--text-muted);
    font-size: 10px;
    white-space: nowrap;
}

.message-copy-btn {
    width: 24px;
    height: 24px;
    opacity: 0;
    border-color: transparent;
    background: transparent;
}

.message:hover .message-copy-btn,
.message-copy-btn:focus {
    opacity: 1;
}

.message-role {
    font-weight: 700;
    font-size: 10px;
    text-transform: uppercase;
    letter-spacing: 1px;
}

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

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

.tool-call-message .message-role {
    color: var(--accent-blue);
    text-transform: none;
    letter-spacing: 0.2px;
    font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono", "Courier New", monospace;
}

.tool-result-message .message-role {
    color: var(--accent-green);
    text-transform: none;
    letter-spacing: 0.2px;
    font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono", "Courier New", monospace;
}

.instruction-message .message-role {
    color: var(--accent-yellow);
}

.developer-message .message-role {
    color: var(--accent-yellow);
}

.message-number {
    color: var(--text-muted);
    font-size: 10px;
}

.tool-call-name {
    font-size: 12px;
    color: var(--text-primary);
    font-weight: 600;
    padding: 2px 8px;
    border-radius: 999px;
    background: rgba(255, 255, 255, 0.45);
}

.tool-call-meta {
    color: var(--text-muted);
    font-size: 11px;
    letter-spacing: 0.2px;
}

.message-collapsible-body .message-content {
    padding-top: 0;
}

.message-collapsible-body .message-content :global(p:first-child) {
    margin-top: 0;
}

.message-content {
    padding: 6px 16px;
    overflow-x: visible;
    text-align: left;
    line-height: 1.1;
    font-size: 15px;
}

.tool-call-message .message-content,
.tool-result-message .message-content {
    font-size: 13px;
    line-height: 1.45;
}

.message-raw-content {
    margin: 0;
    white-space: pre-wrap;
    word-break: break-word;
    overflow-wrap: anywhere;
    font-family:
        ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono", "Courier New", monospace;
}

.message-content p {
    margin-bottom: 1.25em;
}

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

.message-content pre {
    background: #0d1117;
    border: 1px solid var(--border-color);
    border-radius: 12px;
    padding: 16px;
    overflow-x: auto;
    margin: 1.5em 0;
    box-shadow: inset 0 2px 4px rgba(0, 0, 0, 0.2);
}

[data-theme="light"] .message-content pre {
    background: #f6f8fa;
    box-shadow: inset 0 2px 4px rgba(0, 0, 0, 0.05);
}

.message-content code {
    font-family:
        "SFMono-Regular", Consolas, "Liberation Mono", Menlo, monospace;
    font-size: 13px;
    color: #e6edf3;
    /* 确保在深色背景下文字可见 */
}

[data-theme="light"] .message-content code {
    color: #24292f;
}

.message-content :not(pre)>code {
    background: var(--bg-tertiary);
    padding: 2px 6px;
    border-radius: 4px;
}

/* Code Block Wrapper */
.code-block-wrapper {
    position: relative;
    margin: 1.5em 0;
    border-radius: 12px;
    overflow: hidden;
    background: #0d1117;
    border: 1px solid var(--border-color);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.3);
}

.code-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 8px 16px;
    background: rgba(255, 255, 255, 0.05);
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.language-label {
    font-size: 11px;
    font-weight: 600;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.code-block-wrapper pre {
    margin: 0 !important;
    border: none !important;
    border-radius: 0 !important;
    box-shadow: none !important;
    background: transparent !important;
}

/* Copy Button in Header */
.code-header .copy-btn {
    position: static;
    opacity: 1;
    background: transparent;
    border: 1px solid rgba(255, 255, 255, 0.1);
    padding: 4px 8px;
    font-size: 12px;
    color: #fff;
}

.code-header .copy-btn:hover {
    background: rgba(255, 255, 255, 0.1);
    border-color: var(--accent-blue);
    color: #fff;
}

[data-theme="light"] .copy-btn {
    background: rgba(0, 0, 0, 0.03);
    border-color: rgba(0, 0, 0, 0.1);
}

[data-theme="light"] .copy-btn:hover {
    background: rgba(0, 0, 0, 0.08);
}

[data-theme="light"] .detail-progress-anchor {
    background: rgba(148, 163, 184, 0.5);
}

[data-theme="light"] .detail-progress-anchor:hover,
[data-theme="light"] .detail-progress-anchor:focus-visible {
    background: rgba(71, 85, 105, 0.72);
}

[data-theme="light"] .detail-progress-anchor.active {
    background: rgba(31, 41, 55, 0.92);
}

[data-theme="light"] .detail-progress-directory {
    background: rgba(255, 255, 255, 0.96);
    box-shadow: 0 18px 42px rgba(15, 23, 42, 0.12);
}

[data-theme="light"] .detail-progress-directory-list {
    scrollbar-color: rgba(100, 116, 139, 0.38) transparent;
}

[data-theme="light"] .detail-progress-directory-list::-webkit-scrollbar-thumb {
    background: rgba(100, 116, 139, 0.34);
}

[data-theme="light"] .detail-progress-directory-list::-webkit-scrollbar-thumb:hover {
    background: rgba(100, 116, 139, 0.5);
}

/* Scrollbar */
::-webkit-scrollbar {
    width: 8px;
    height: 8px;
}

::-webkit-scrollbar-track {
    background: var(--bg-primary);
}

::-webkit-scrollbar-thumb {
    background: var(--bg-hover);
    border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
    background: var(--border-light);
}

/* ===============================
   Responsive
   =============================== */
@media (max-width: 768px) {
    .sidebar {
        position: fixed;
        left: -100%;
        top: 0;
        bottom: 0;
        z-index: 100;
        transition: left 0.3s;
    }

    .sidebar.open {
        left: 0;
    }

    .main-content {
        width: 100%;
    }

    .detail-progress-nav {
        top: 108px;
        right: 10px;
        width: 24px;
        min-height: 24px;
    }

    .detail-progress-nav.expanded {
        width: 24px;
    }

    .detail-progress-anchor {
        width: 16px;
        height: 2px;
    }

    .detail-progress-anchor:hover,
    .detail-progress-anchor:focus-visible,
    .detail-progress-anchor.active {
        width: 18px;
    }

    .detail-progress-directory {
        display: none;
    }

    .detail-refresh-fab {
        right: 16px;
        bottom: 16px;
        width: 44px;
        height: 44px;
    }

    .conversation-detail {
        padding: var(--spacing-lg);
    }
}

/* ===============================
   Empty State
   =============================== */
.empty-state {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    height: 100%;
    color: var(--text-muted);
    text-align: center;
    padding: var(--spacing-xl);
}

.empty-state svg {
    width: 64px;
    height: 64px;
    margin-bottom: var(--spacing-lg);
    opacity: 0.5;
}

.empty-state h3 {
    font-size: 18px;
    margin-bottom: var(--spacing-sm);
}

.empty-state p {
    font-size: 14px;
}

/* Refresh Toast */
.refresh-toast {
    position: fixed;
    bottom: 24px;
    left: 24px;
    z-index: 1000;
    pointer-events: none;
    transform: translateY(100px);
    opacity: 0;
    transition: all 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275);
}

.refresh-toast.show {
    transform: translateY(0);
    opacity: 1;
}

.refresh-content {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 10px 16px;
    background: var(--bg-tertiary);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    box-shadow: var(--shadow-lg);
    color: var(--text-primary);
    font-size: 13px;
    font-weight: 500;
}

.refresh-content.success {
    border-color: var(--accent-green);
    color: var(--accent-green);
}

.refresh-content.error {
    border-color: var(--accent-red);
    color: var(--accent-red);
}

.refresh-content.syncing {
    border-color: var(--accent-blue);
    color: var(--accent-blue);
}

.spinner-small {
    animation: spin 1s linear infinite;
}

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

/* --- APPENDED: Markdown & Highlight Fixes --- */
.message-content h1,
.message-content h2,
.message-content h3 {
    margin-top: 1em;
    margin-bottom: 0.5em;
    color: var(--text-primary);
    font-weight: 600;
}

.message-content h1 {
    font-size: 1.5em;
    border-bottom: 1px solid var(--border-color);
    padding-bottom: 0.3em;
}

.message-content h2 {
    font-size: 1.3em;
}

.message-content h3 {
    font-size: 1.1em;
}

.message-content ul,
.message-content ol {
    padding-left: 1.5em;
    margin-bottom: 1em;
}

.message-content li {
    margin-bottom: 0.25em;
}

.message-content p {
    margin-bottom: 0.8em;
}

.message-content a {
    color: var(--accent-blue);
    text-decoration: none;
}

.message-content a:hover {
    text-decoration: underline;
}

.message-content blockquote {
    border-left: 4px solid var(--border-color);
    padding-left: 1em;
    margin-left: 0;
    color: var(--text-muted);
}

.message-content strong {
    font-weight: 700;
    color: var(--text-primary);
}

.message-content em {
    font-style: italic;
}

.message-content code {
    font-family: 'SFMono-Regular', Consolas, 'Liberation Mono', Menlo, monospace;
    font-size: 85%;
    background-color: rgba(110, 118, 129, 0.4);
    padding: 0.2em 0.4em;
    border-radius: 6px;
}

.message-content pre code {
    background-color: transparent;
    padding: 0;
}

/* Highlight.js Atom One Dark (Simplified) */
.hljs {
    color: #abb2bf;
    background: #282c34
}

.hljs-comment,
.hljs-quote {
    color: #5c6370;
    font-style: italic
}

.hljs-doctag,
.hljs-keyword,
.hljs-formula {
    color: #c678dd
}

.hljs-section,
.hljs-name,
.hljs-selector-tag,
.hljs-deletion,
.hljs-subst {
    color: #e06c75
}

.hljs-literal {
    color: #56b6c2
}

.hljs-string,
.hljs-regexp,
.hljs-addition,
.hljs-attribute,
.hljs-meta .hljs-string {
    color: #98c379
}

.hljs-attr,
.hljs-variable,
.hljs-template-variable,
.hljs-type,
.hljs-selector-class,
.hljs-selector-attr,
.hljs-selector-pseudo,
.hljs-number {
    color: #d19a66
}

.hljs-symbol,
.hljs-bullet,
.hljs-link,
.hljs-meta,
.hljs-selector-id,
.hljs-title {
    color: #61aeee
}

.hljs-emphasis {
    font-style: italic
}

.hljs-strong {
    font-weight: bold
}

.hljs-link {
    text-decoration: underline
}

/* Refresh Toast */
.refresh-toast {
    position: fixed;
    bottom: 24px;
    left: 24px;
    z-index: 1000;
    pointer-events: none;
    transform: translateY(100px);
    opacity: 0;
    transition: all 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275);
}

.refresh-toast.show {
    transform: translateY(0);
    opacity: 1;
}

.refresh-content {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 10px 16px;
    background: var(--bg-tertiary);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    box-shadow: var(--shadow-lg);
    color: var(--text-primary);
    font-size: 13px;
    font-weight: 500;
}

.refresh-content.success {
    border-color: var(--accent-green);
    color: var(--accent-green);
}

.refresh-content.syncing {
    border-color: var(--accent-blue);
    color: var(--accent-blue);
}

.spinner-small {
    animation: spin 1s linear infinite;
}

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