/* ===== CSS Variables ===== */
:root {
    /* Background colors */
    --color-bg-primary: #ffffff;
    --color-bg-secondary: #f8f9fa;
    --color-bg-tertiary: #fafafa;
    --color-bg-user-message: #e3f2fd;
    --color-bg-assistant-message: #ffffff;
    --color-bg-code: #f6f8fa;

    /* Text colors */
    --color-text-primary: #202124;
    --color-text-secondary: #5f6368;
    --color-text-tertiary: #9aa0a6;

    /* Border colors */
    --color-border-light: #e8eaed;
    --color-border-medium: #dadce0;

    /* Accent colors */
    --color-accent-blue: #1a73e8;
    --color-accent-green: #34a853;
    --color-accent-yellow: #f9ab00;
    --color-accent-red: #ea4335;

    /* Shadows */
    --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.1);
    --shadow-md: 0 0 20px rgba(0, 0, 0, 0.1);

    /* Error states */
    --color-error-bg: #fce8e6;
    --color-error-text: #c5221f;
}

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

body {
    font-family: 'Google Sans', 'Roboto', -apple-system, BlinkMacSystemFont, sans-serif;
    background-color: var(--color-bg-secondary);
    color: var(--color-text-primary);
    line-height: 1.6;
}

ol, li {
    margin: 0px 16px;
}

/* ===== App Container ===== */
.app-container {
    display: flex;
    flex-direction: row;
    height: 100vh;
    width: 100%;
    margin: 0 auto;
    background-color: var(--color-bg-primary);
    box-shadow: var(--shadow-md);
}

/* ===== Content Area (header + chat + input) ===== */
.content-area {
    flex: 1;
    display: flex;
    flex-direction: column;
    overflow: hidden;
    min-width: 0;
}

/* ===== Header ===== */
.chat-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 16px 24px;
    background-color: var(--color-bg-primary);
    border-bottom: 1px solid var(--color-border-light);
}

.agent-name-container {
    display: flex;
    align-items: center;
    gap: 8px;
}

.agent-info h1 {
    font-size: 20px;
    font-weight: 500;
    color: var(--color-text-primary);
    margin-bottom: 4px;
}

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


.header-status {
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    gap: 6px;
    padding: 8px 4px;
    flex-shrink: 0;
}

.connection-status {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 13px;
    color: var(--color-text-secondary);
}

.context-window-status {
    display: flex;
    align-items: center;
    gap: 6px;
    font-size: 11px;
    color: var(--color-text-tertiary);
}

.context-window-bar-track {
    width: 80px;
    height: 4px;
    background-color: var(--color-border-medium);
    border-radius: 2px;
    overflow: hidden;
}

.context-window-bar-fill {
    height: 100%;
    width: 0%;
    border-radius: 2px;
    background-color: var(--color-accent-green);
    transition: width 0.3s ease, background-color 0.3s ease;
}

.context-window-bar-fill.yellow {
    background-color: var(--color-accent-yellow);
}

.context-window-bar-fill.red {
    background-color: var(--color-accent-red);
}

.status-dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background-color: var(--color-text-tertiary);
    animation: pulse 2s infinite;
}

.status-dot.connected {
    background-color: var(--color-accent-green);
    animation: none;
}

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

.status-dot.error {
    background-color: var(--color-accent-red);
}

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

/* ===== Main Content Area (kept for backwards compat) ===== */
.main-content {
    flex: 1;
    display: flex;
    overflow: hidden;
}

/* ===== Chat Container ===== */
.chat-container {
    flex: 1;
    overflow-y: auto;
    padding: 24px;
    background-color: var(--color-bg-secondary);
    scroll-behavior: smooth;
}

/* ===== Sidebar ===== */
.sidebar {
    position: relative;
    width: 280px;
    background-color: var(--color-bg-primary);
    border-right: 1px solid var(--color-border-light);
    overflow: hidden;
    transition: width 0.3s ease;
    flex-shrink: 0;
}

.sidebar.collapsed {
    width: 56px;
}

.sidebar-toggle {
    position: absolute;
    top: 12px;
    right: 12px;
    width: 32px;
    height: 32px;
    background: var(--color-bg-tertiary);
    border: 1px solid var(--color-border-light);
    border-radius: 6px;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--color-text-secondary);
    transition: background-color 0.2s, transform 0.3s ease;
    z-index: 10;
}

.sidebar-toggle:hover {
    background-color: var(--color-bg-secondary);
    color: var(--color-accent-blue);
}

.sidebar.collapsed .sidebar-toggle {
    transform: rotate(180deg);
}

.sidebar-content {
    padding: 56px 12px 0 12px;
    overflow: hidden;
    height: 100%;
    box-sizing: border-box;
    opacity: 1;
    transition: opacity 0.2s ease;
    display: flex;
    flex-direction: column;
}

.sidebar.collapsed .sidebar-content {
    opacity: 0;
    pointer-events: none;
}

/* ===== Sidebar Navigation ===== */
.sidebar-nav {
    display: flex;
    flex-direction: column;
    gap: 4px;
    flex-shrink: 0;
}

.sidebar-nav-item {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 12px 16px;
    background: transparent;
    border: none;
    border-radius: 8px;
    color: var(--color-text-primary);
    font-size: 15px;
    font-family: inherit;
    cursor: pointer;
    transition: background-color 0.2s;
    text-align: left;
    width: 100%;
}

.sidebar-nav-item:hover:not(:disabled) {
    background-color: var(--color-bg-tertiary);
}

.sidebar-nav-item:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

.sidebar-nav-item svg {
    flex-shrink: 0;
    color: var(--color-text-secondary);
}

.sidebar-nav-item:hover:not(:disabled) svg {
    color: var(--color-accent-blue);
}

.sidebar-nav-item span {
    flex: 1;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

/* ===== Context Gauge ===== */
.context-gauge {
    display: flex;
    flex-direction: column;
    align-items: center;
}

.gauge-container {
    position: relative;
    width: 200px;
    height: 120px;
    margin-bottom: 16px;
}

.gauge-svg {
    width: 100%;
    height: 100%;
}

.gauge-bg {
    stroke: var(--color-border-light);
    stroke-linecap: round;
}

.gauge-progress {
    stroke: var(--color-accent-blue);
    stroke-linecap: round;
    transition: stroke-dasharray 0.3s ease, stroke 0.3s ease;
}

.gauge-progress.warning {
    stroke: #f59e0b;
}

.gauge-progress.danger {
    stroke: var(--color-accent-red);
}

.gauge-text {
    position: absolute;
    top: 60%;
    left: 50%;
    transform: translate(-50%, -50%);
    text-align: center;
}

.context-value {
    font-size: 24px;
    font-weight: 600;
    color: var(--color-text-primary);
    line-height: 1;
}

.context-max {
    font-size: 12px;
    color: var(--color-text-secondary);
    margin-top: 4px;
}

.context-percentage {
    font-size: 14px;
    font-weight: 500;
    color: var(--color-text-secondary);
}

/* ===== Messages ===== */
.message {
    display: flex;
    margin-bottom: 24px;
    animation: fadeIn 0.3s ease-in;
}

@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(10px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.message.user {
    flex-direction: row-reverse;
}

.message-avatar {
    width: 32px;
    height: 32px;
    border-radius: 50%;
    background-color: var(--color-accent-blue);
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-weight: 500;
    flex-shrink: 0;
    font-size: 14px;
}

.message.assistant .message-avatar {
    background-color: var(--color-accent-green);
}

.message-avatar.thinking {
    font-size: 20px;
    line-height: 1;
}

.thinking-dots {
    display: flex;
    gap: 2px;
}

.thinking-dots span {
    animation: thinking-blink 1.4s infinite;
}

.thinking-dots span:nth-child(1) {
    animation-delay: 0s;
}

.thinking-dots span:nth-child(2) {
    animation-delay: 0.2s;
}

.thinking-dots span:nth-child(3) {
    animation-delay: 0.4s;
}

@keyframes thinking-blink {
    0%, 60%, 100% {
        opacity: 0.3;
    }
    30% {
        opacity: 1;
    }
}

.message-content-wrapper {
    max-width: 80%;
    margin: 0 12px;
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.message.user .message-content-wrapper {
    align-items: flex-end;
}

.message-content {
    width: 100%;
}

.message.user .message-content {
    width: fit-content;
    background-color: var(--color-bg-user-message);
    border-radius: 18px 18px 4px 18px;
    padding: 12px 16px;
}

.message.assistant .message-content {
    background-color: var(--color-bg-assistant-message);
    border-radius: 18px 18px 18px 4px;
    padding: 16px;
    box-shadow: var(--shadow-sm);
    min-width: 60%;
}

.message-text {
    font-size: 15px;
    line-height: 1.6;
    word-wrap: break-word;
    /* white-space: pre-wrap; */
}

.message.user .message-text {
    font-size: 14px;
}

.message-timestamp {
    font-size: 11px;
    color: var(--color-text-secondary);
    margin-top: 4px;
}

.message-files {
    display: flex;
    flex-wrap: wrap;
    justify-content: flex-end;
    gap: 8px;
}

.message-file {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 8px 12px;
    background-color: rgba(0, 0, 0, 0.05);
    border: 1px solid rgba(0, 0, 0, 0.1);
    border-radius: 8px;
    font-size: 13px;
    color: var(--color-text-primary);
    max-width: 250px;
}

.message.user .message-content {
   max-width: 80%;
   min-width: 400px;
}

.message.user .message-file {
    background-color: rgba(0, 0, 0, 0.1);
    border-color: rgba(0, 0, 0, 0.15);
}

.message-file-extension {
    flex-shrink: 0;
    background: lightgray;
    color: black;
    font-size: 10px;
    font-weight: 600;
    padding: 4px 6px;
    border: 1px solid gray;
    border-radius: 4px;
    text-transform: uppercase;
    min-width: 32px;
    text-align: center;
}

.file-extension-pdf {
    background: darkred;
    color: white;
    border-color: darkred;
}

.file-extension-csv,
.file-extension-xls,
.file-extension-xlsx {
    background: green;
    color: white;
    border-color: green;
}

.file-extension-zip {
    background: orangered;
    color: white;
    border-color: orangered;
}

.file-extension-doc,
.file-extension-docx {
    background: var(--color-accent-blue);
    color: white;
    border-color: var(--color-accent-blue);
}

.file-extension-ppt,
.file-extension-pptx {
    background: indianred;
    color: white;
    border-color: indianred;
}

.message-file-info {
    flex: 1;
    min-width: 0;
    display: flex;
    flex-direction: column;
    gap: 2px;
}

.message-file-name {
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
    font-size: 13px;
    color: var(--color-text-primary);
}

.message-file-size {
    font-size: 11px;
    color: var(--color-text-secondary);
}

/* ===== Reasoning Section ===== */
.reasoning-section {
    margin-bottom: 12px;
    border: 1px solid var(--color-border-light);
    border-radius: 8px;
    overflow: hidden;
    transition: opacity 0.3s ease, transform 0.3s ease;
}

.reasoning-section.fade-out {
    opacity: 0;
    transform: scale(0.98);
}

.reasoning-header {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 8px 12px;
    background-color: var(--color-bg-secondary);
    cursor: pointer;
    user-select: none;
}

.reasoning-header:hover {
    background-color: var(--color-bg-tertiary);
}

.reasoning-toggle {
    font-size: 12px;
    transition: transform 0.2s;
}

.reasoning-toggle.expanded {
    transform: rotate(90deg);
}

.reasoning-title {
    font-size: 14px;
    font-weight: 500;
    color: var(--color-text-secondary);
}

.reasoning-content {
    padding: 8px;
    background-color: var(--color-bg-tertiary);
    font-size: 14px;
    color: var(--color-text-secondary);
    font-style: normal;
    line-height: 1.6;
    display: none;
    overflow: hidden;
    transition: max-height 0.3s ease-out;
}

.reasoning-content.expanded {
    display: block;
    overflow-y: auto;
}

/* Reasoning content blocks */
.reasoning-content-block {
    white-space: pre-wrap;  /* Preserve line breaks and spaces */
    word-wrap: break-word;  /* Wrap long lines */
    overflow-wrap: break-word;  /* Break long words if needed */
}

.reasoning-content-block:last-child {
    margin-bottom: 0;
}

/* Tool status badges inside reasoning content */
.reasoning-content .tool-status-badge {
    margin: 8px 0;
}

.reasoning-chunk {
    margin-bottom: 10px;
    padding: 4px 0;
}

/* ===== Typing Indicator ===== */
.typing-indicator {
    display: flex;
    gap: 4px;
    padding: 12px 16px;
}

.typing-dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background-color: var(--color-text-tertiary);
    animation: typing 1.4s infinite;
}

.typing-dot:nth-child(2) {
    animation-delay: 0.2s;
}

.typing-dot:nth-child(3) {
    animation-delay: 0.4s;
}

@keyframes typing {
    0%, 60%, 100% {
        transform: translateY(0);
    }
    30% {
        transform: translateY(-10px);
    }
}

/* ===== Input Container ===== */
.input-container {
    padding: 16px 24px;
    background-color: var(--color-bg-primary);
    border-top: 1px solid var(--color-border-light);
}

.uploaded-files-container {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    max-width: 800px;
    margin: 0 auto 12px auto;
}

.uploaded-files-container:empty {
    display: none;
}

.uploaded-file {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 8px 12px;
    background-color: var(--color-bg-secondary);
    border: 1px solid var(--color-border-light);
    border-radius: 8px;
    font-size: 13px;
    color: var(--color-text-primary);
    max-width: 250px;
}

.uploaded-file-extension {
    flex-shrink: 0;
    background: lightgray;
    color: black;
    font-size: 10px;
    font-weight: 600;
    padding: 4px 6px;
    border: 1px solid gray;
    border-radius: 4px;
    text-transform: uppercase;
    min-width: 32px;
    text-align: center;
}

.file-extension-pdf {
    background: darkred;
    color: white;
}

.file-extension-csv,
.file-extension-xls,
.file-extension-xlsx {
    background: green;
    color: white;
}

.file-extension-zip {
    background: orangered;
    color: white;
}

.file-extension-doc,
.file-extension-docx {
    background: blue;
    color: white;
}

.file-extension-ppt,
.file-extension-pptx {
    background: indianred;
    color: white;
}


.uploaded-file-info {
    flex: 1;
    min-width: 0;
    display: flex;
    flex-direction: column;
    gap: 2px;
}

.uploaded-file-name {
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
    font-size: 13px;
    color: var(--color-text-primary);
}

.uploaded-file-size {
    font-size: 11px;
    color: var(--color-text-secondary);
}

.uploaded-file-remove {
    background: transparent;
    border: none;
    cursor: pointer;
    padding: 0;
    width: 16px;
    height: 16px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--color-text-secondary);
    flex-shrink: 0;
    font-size: 18px;
}

.uploaded-file-remove:hover {
    color: var(--color-accent-red);
}

.input-wrapper {
    display: flex;
    gap: 12px;
    align-items: flex-end;
    max-width: 800px;
    margin: 0 auto;
}

.upload-button {
    width: 48px;
    height: 48px;
    border: 1px solid var(--color-border-light);
    border-radius: 50%;
    background-color: var(--color-bg-primary);
    color: var(--color-text-secondary);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: background-color 0.2s, border-color 0.2s;
    flex-shrink: 0;
}

.upload-button:hover {
    background-color: var(--color-bg-tertiary);
    border-color: var(--color-accent-blue);
    color: var(--color-accent-blue);
}

.upload-button.uploading {
    opacity: 0.5;
    cursor: not-allowed;
    pointer-events: none;
}

#message-input {
    flex: 1;
    padding: 12px 16px;
    border: 1px solid var(--color-border-light);
    border-radius: 24px;
    font-size: 14px;
    font-family: inherit;
    resize: none;
    outline: none;
    transition: border-color 0.2s;
    max-height: 200px;
    overflow-y: auto;
    background-color: var(--color-bg-primary);
    color: var(--color-text-primary);
}

#message-input:focus {
    border-color: var(--color-accent-blue);
}

#send-button {
    width: 48px;
    height: 48px;
    border: none;
    border-radius: 50%;
    background-color: var(--color-accent-blue);
    color: white;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: background-color 0.2s, opacity 0.2s;
}

#send-button:hover:not(:disabled) {
    filter: brightness(0.9);
}

#send-button:disabled {
    background-color: var(--color-border-light);
    cursor: not-allowed;
    opacity: 0.5;
}

#send-button svg {
    fill: currentColor;
}

/* ===== Error Message ===== */
.error-message {
    background-color: var(--color-error-bg);
    border-left: 4px solid var(--color-accent-red);
    padding: 12px 16px;
    margin-bottom: 16px;
    border-radius: 4px;
    font-size: 14px;
    color: var(--color-error-text);
}

/* ===== Responsive Design ===== */
@media (max-width: 1024px) {
    .sidebar {
        width: 240px;
    }

    .sidebar.collapsed {
        width: 56px;
    }
}

@media (max-width: 768px) {
    .app-container {
        flex-direction: column;
    }

    .sidebar {
        width: 100%;
        border-right: none;
        border-bottom: 1px solid var(--color-border-light);
        max-height: 180px;
    }

    .sidebar.collapsed {
        width: 100%;
        max-height: 48px;
    }

    .sidebar-toggle {
        right: 50%;
        transform: translateX(50%) rotate(90deg);
    }

    .sidebar.collapsed .sidebar-toggle {
        transform: translateX(50%) rotate(-90deg);
    }

    .sidebar-content {
        padding: 56px 16px 16px 16px;
    }

    .chat-container {
        padding: 16px;
    }

    .message-content {
        max-width: 85%;
    }

    .input-container {
        padding: 12px 16px;
    }
}

/* ===== Markdown Styling ===== */
.message-text h1,
.message-text h2,
.message-text h3,
.message-text h4,
.message-text h5,
.message-text h6 {
    margin-top: 16px;
    margin-bottom: 8px;
    font-weight: 600;
    line-height: 1.4;
}

.message-text h1 {
    font-size: 24px;
}

.message-text h2 {
    font-size: 20px;
}

.message-text h3 {
    font-size: 18px;
}

.message-text h4 {
    font-size: 16px;
}

.message-text h5 {
    font-size: 14px;
}

.message-text h6 {
    font-size: 12px;
}

.message-text p {
    margin: 8px 0;
}

.message-text ul,
.message-text ol {
    margin: 8px 0;
    padding-left: 24px;
}

.message-text li {
    margin: 4px 0;
}

.message-text code {
    background-color: var(--color-bg-tertiary);
    padding: 2px 6px;
    border-radius: 3px;
    font-family: 'Monaco', 'Menlo', 'Consolas', monospace;
    font-size: 13px;
    color: var(--color-accent-red);
}

.message-text pre {
    background-color: var(--color-bg-code);
    border: 1px solid var(--color-border-light);
    border-radius: 6px;
    padding: 16px;
    margin: 12px 0;
    overflow-x: auto;
    position: relative;
}

.message-text pre code {
    background-color: transparent;
    padding: 0;
    color: var(--color-text-primary);
    font-size: 14px;
    line-height: 1.6;
    font-family: 'Monaco', 'Menlo', 'Consolas', 'Courier New', monospace;
}

/* Override highlight.js styles to match our theme */
.message-text pre code.hljs {
    padding: 0;
    background: transparent;
}

.message-text .code-block-wrapper {
    position: relative;
    margin: 12px 0;
}

.message-text .code-block-wrapper pre {
    margin: 0;
}

.message-text .code-copy-btn {
    position: absolute;
    top: 8px;
    right: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 4px 10px;
    border: 1px solid var(--color-border-medium);
    border-radius: 4px;
    background: var(--color-bg-primary);
    color: var(--color-text-secondary);
    font-size: 12px;
    cursor: pointer;
    white-space: nowrap;
    opacity: 0;
    transition: opacity 0.15s ease;
}

.message-text .code-block-wrapper:hover .code-copy-btn {
    opacity: 1;
}

.message-text .code-copy-btn:hover {
    background-color: var(--color-bg-secondary);
    color: var(--color-text-primary);
}

.message-text blockquote {
    border-left: 4px solid var(--color-accent-blue);
    padding-left: 16px;
    margin: 12px 0;
    color: var(--color-text-secondary);
    font-style: italic;
}

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

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

.message-text table {
    border-collapse: collapse;
    margin: 12px 0;
    width: 100%;
}

.message-text th,
.message-text td {
    border: 1px solid var(--color-border-light);
    padding: 8px 12px;
    text-align: left;
}

.message-text th {
    background-color: var(--color-bg-tertiary);
    font-weight: 600;
}

.message-text hr {
    border: none;
    border-top: 1px solid var(--color-border-light);
    margin: 16px 0;
}

.message-text img {
    max-width: 100%;
    height: auto;
}

.message-text .img-wrapper {
    position: relative;
    display: inline-block;
    border: 1px solid var(--color-border-medium);
    border-radius: 4px;
    overflow: hidden;
    padding: 16px;
}

.message-text .img-download-btn {
    position: absolute;
    top: 8px;
    right: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 4px 10px;
    border: 1px solid var(--color-border-medium);
    border-radius: 4px;
    background: var(--color-bg-primary);
    color: var(--color-text-secondary);
    font-size: 12px;
    text-decoration: none;
    white-space: nowrap;
    opacity: 0;
    transition: opacity 0.15s ease;
}

.message-text .img-wrapper:hover .img-download-btn {
    opacity: 1;
}

.message-text .img-download-btn:hover {
    background-color: var(--color-bg-secondary);
    color: var(--color-text-primary);
}

/* ===== Tool Status Badge ===== */
.tool-status-badge {
    display: flex;
    align-items: center;
    gap: 6px;
    /*padding: 8px;*/
    /*margin: 8px;*/
    background-color: var(--color-bg-tertiary);
    color: var(--color-text-secondary);
    /*border: 1px solid var(--color-border-light);*/
    width: fit-content;
    transition: opacity 0.3s ease, transform 0.3s ease;
    white-space: nowrap;
    font-weight: bold;
    overflow: hidden;
}

.tool-status-badge.calling {
/*
    background-color: #e3f2fd;
    color: var(--color-accent-blue);
    border-color: var(--color-accent-blue);
*/
}

.tool-status-badge.completed {
    background-color: #e8f5e9;
    color: var(--color-accent-green);
    border-color: var(--color-accent-green);
}

.tool-status-badge.fade-out {
    opacity: 0;
    transform: scale(0.95);
}

@keyframes pulse-badge {
    0%, 100% {
        opacity: 1;
        transform: scale(1);
    }
    50% {
        opacity: 0.7;
        transform: scale(0.98);
    }
}

/* Dark mode adjustments for tool status badge */
@media (prefers-color-scheme: dark) {
    .tool-status-badge.calling {
    /*
        background-color: #1e3a5f;
        color: #4c8bf5;
        border-color: #4c8bf5;
        */
    }

    .tool-status-badge.completed {
        background-color: #1e3d2a;
        color: #5bb974;
        border-color: #5bb974;
    }
}

/* ===== Scrollbar Styling ===== */
.chat-container::-webkit-scrollbar {
    width: 8px;
}

.chat-container::-webkit-scrollbar-track {
    background: var(--color-bg-tertiary);
}

.chat-container::-webkit-scrollbar-thumb {
    background: var(--color-border-medium);
    border-radius: 4px;
}

.chat-container::-webkit-scrollbar-thumb:hover {
    filter: brightness(0.8);
}

/* ===== Sidebar Divider ===== */
.sidebar-divider {
    border: none;
    border-top: 1px solid var(--color-border-light);
    margin: 8px 0;
    flex-shrink: 0;
}

/* ===== Sidebar Sections ===== */
.sidebar-section {
    flex-shrink: 0;
}

.sidebar-section--agents {
    max-height: 200px;
    overflow-y: auto;
}

.sidebar-section--kb {
    flex: 1;
    overflow-y: auto;
    min-height: 0;
}

.kb-panel-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.kb-panel-view-all {
    font-size: 11px;
    font-weight: 500;
    color: var(--color-text-secondary);
    text-decoration: none;
    text-transform: none;
    letter-spacing: 0;
    margin-left: auto;
}

.kb-panel-view-all:hover {
    color: var(--color-text-primary);
    text-decoration: underline;
}

.sidebar-section--history {
    flex: 1;
    display: flex;
    flex-direction: column;
    overflow: hidden;
    min-height: 0;
}

.sidebar-section--history .conv-history-list {
    flex: 1;
}

.sidebar-section--status {
    margin-top: auto;
    border-top: 1px solid var(--color-border-light);
    padding-top: 4px;
    flex-shrink: 0;
}

/* ===== Sidebar Agent Header (Section 1) ===== */
.sidebar-agent-header {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 4px 4px 8px 4px;
}

.sidebar-agent-header--link {
    cursor: pointer;
    border-radius: 8px;
    transition: background-color 0.15s;
}

.sidebar-agent-header--link:hover {
    background-color: var(--color-bg-secondary);
}

.sidebar-agent-name {
    font-size: 15px;
    font-weight: 600;
    color: var(--color-text-primary);
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
    flex: 1;
}

/* ===== Agent Avatar ===== */
.agent-avatar {
    position: relative;
    width: 32px;
    height: 32px;
    border-radius: 50%;
    overflow: hidden;
    background-color: var(--color-accent-blue);
    flex-shrink: 0;
}

.agent-avatar img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
}

.agent-avatar span {
    position: absolute;
    inset: 0;
    display: none;
    align-items: center;
    justify-content: center;
    color: white;
    font-weight: 600;
    font-size: 13px;
}

.agent-avatar--sm {
    width: 28px;
    height: 28px;
}

.agent-avatar--sm span {
    font-size: 11px;
}

/* ===== Sidebar Section Label ===== */
.sidebar-section-label {
    font-size: 11px;
    font-weight: 600;
    color: var(--color-text-tertiary);
    text-transform: uppercase;
    letter-spacing: 0.5px;
    padding: 0 4px 4px 4px;
}

/* ===== Agents List (Section 2) ===== */
.agents-list {
    display: flex;
    flex-direction: column;
    gap: 2px;
}

.agent-list-item {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 7px 4px;
    background: transparent;
    border: none;
    border-radius: 6px;
    color: var(--color-text-primary);
    font-size: 14px;
    font-family: inherit;
    cursor: pointer;
    text-align: left;
    width: 100%;
    transition: background-color 0.2s;
}

.agent-list-item:hover {
    background-color: var(--color-bg-tertiary);
}

.agent-list-item.active {
    background-color: var(--color-bg-user-message);
    color: var(--color-accent-blue);
    font-weight: 500;
}

.agent-list-name {
    flex: 1;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

/* ===== Conversation History Panel ===== */
.conv-history-list {
    flex: 1;
    overflow-y: auto;
    min-height: 0;
}

.conv-history-list::-webkit-scrollbar {
    width: 4px;
}

.conv-history-list::-webkit-scrollbar-track {
    background: transparent;
}

.conv-history-list::-webkit-scrollbar-thumb {
    background: var(--color-border-medium);
    border-radius: 2px;
}

.conv-group-label {
    font-size: 11px;
    font-weight: 600;
    color: var(--color-text-tertiary);
    text-transform: uppercase;
    letter-spacing: 0.5px;
    padding: 12px 16px 4px 16px;
}

.conv-item {
    display: block;
    width: 100%;
    padding: 7px 16px;
    background: transparent;
    border: none;
    border-radius: 6px;
    color: var(--color-text-primary);
    font-size: 13px;
    font-family: inherit;
    cursor: pointer;
    text-align: left;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    transition: background-color 0.2s;
}

.conv-item:hover {
    background-color: var(--color-bg-tertiary);
}

.conv-item.active {
    background-color: var(--color-bg-user-message);
    color: var(--color-accent-blue);
    font-weight: 500;
}

.conv-loading {
    font-size: 13px;
    color: var(--color-text-tertiary);
    padding: 12px 16px;
}

/* ===== Dark Mode ===== */
@media (prefers-color-scheme: dark) {
    :root {
        /* Background colors */
        --color-bg-primary: #2d2d2d;
        --color-bg-secondary: #1e1e1e;
        --color-bg-tertiary: #3a3a3a;
        --color-bg-user-message: #1e3a5f;
        --color-bg-assistant-message: #2d2d2d;
        --color-bg-code: #2d2d2d;

        /* Text colors */
        --color-text-primary: #e8eaed;
        --color-text-secondary: #9aa0a6;
        --color-text-tertiary: #5f6368;

        /* Border colors */
        --color-border-light: #3c4043;
        --color-border-medium: #5f6368;

        /* Accent colors */
        --color-accent-blue: #4c8bf5;
        --color-accent-green: #5bb974;
        --color-accent-red: #f28b82;

        /* Shadows */
        --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.3);
        --shadow-md: 0 0 20px rgba(0, 0, 0, 0.5);

        /* Error states */
        --color-error-bg: #3d1a1a;
        --color-error-text: #f28b82;
    }
}

/* ===== Copy Button ===== */
.copy-button {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 28px;
    height: 28px;
    margin-top: 8px;
    padding: 6px;
    background: transparent;
    border: 1px solid var(--color-border-light);
    border-radius: 6px;
    color: var(--color-text-secondary);
    cursor: pointer;
    transition: all 0.2s ease;
    flex-shrink: 0;
}

.copy-button:hover {
    background-color: var(--color-bg-tertiary);
    border-color: var(--color-accent-blue);
    color: var(--color-accent-blue);
}

.copy-button.copied {
    background-color: var(--color-bg-tertiary);
    border-color: var(--color-accent-green);
    color: var(--color-accent-green);
}

.copy-button.error {
    border-color: var(--color-accent-red);
    color: var(--color-accent-red);
}

.copy-button svg {
    width: 16px;
    height: 16px;
}

/* ===== Token Display ===== */
.token-display {
    display: flex;
    align-items: center;
    gap: 8px;
    margin-bottom: 16px;
    padding: 6px 10px;
    background-color: rgba(0, 0, 0, 0.05);
    border-radius: 8px;
    font-size: 0.85em;
    color: #666;
    font-family: 'Monaco', 'Menlo', 'Consolas', monospace;
}

.token-section {
    flex: 1;
    min-width: 0;
}

.token-section-label {
    font-size: 0.8em;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: #999;
    margin-bottom: 2px;
}

.token-section-value {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 4px;
}

.token-section-divider {
    width: 1px;
    height: 32px;
    background-color: rgba(0, 0, 0, 0.15);
    flex-shrink: 0;
}

.token-total {
    font-weight: 600;
    color: #333;
}

.token-details {
    color: #888;
    font-size: 0.95em;
}

.token-cached {
    color: #4CAF50;
    font-weight: 500;
}

.token-elapsed {
    color: #1976D2;
    font-weight: 600;
}

/* Dark mode token display */
@media (prefers-color-scheme: dark) {
    .token-display {
        background-color: rgba(255, 255, 255, 0.08);
        color: #9aa0a6;
    }

    .token-section-label {
        color: #6c7278;
    }

    .token-section-divider {
        background-color: rgba(255, 255, 255, 0.15);
    }

    .token-total {
        color: #e8eaed;
    }

    .token-details {
        color: #9aa0a6;
    }

    .token-cached {
        color: #81c995;
    }

    .token-elapsed {
        color: #64B5F6;
    }
}

/* ===== History Loading Placeholder ===== */
.history-loading {
    text-align: center;
    color: var(--color-text-secondary);
    padding: 16px;
    font-size: 0.9em;
}