/* ========================================================
   Birch WebUI — Dark Theme Stylesheet
   ======================================================== */

:root {
    --bg-primary: #171717;
    --bg-secondary: #212121;
    --bg-tertiary: #2a2a2a;
    --bg-hover: #333333;
    --bg-active: #3a3a3a;
    --bg-input: #2f2f2f;
    --bg-user-msg: #2b2b2b;
    --bg-assistant-msg: transparent;
    --bg-code: #1a1a2e;
    --bg-modal: #1e1e1e;
    --bg-overlay: rgba(0, 0, 0, 0.6);

    --text-primary: #ececec;
    --text-secondary: #b4b4b4;
    --text-tertiary: #8e8e8e;
    --text-placeholder: #666666;
    --text-code: #e0e0e0;

    --accent: #10a37f;
    --accent-hover: #0d8c6d;
    --accent-gradient: linear-gradient(135deg, #10a37f, #1a7f64);
    --accent-glow: rgba(16, 163, 127, 0.15);

    --danger: #ef4444;
    --danger-hover: #dc2626;

    --border: #3a3a3a;
    --border-light: #444444;

    --sidebar-width: 280px;
    --topbar-height: 52px;
    --input-max-width: 780px;
    --messages-max-width: 780px;

    --radius-xs: 4px;
    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 16px;
    --radius-xl: 24px;

    --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.3);
    --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.4);
    --shadow-lg: 0 8px 32px rgba(0, 0, 0, 0.5);

    --transition-fast: 150ms ease;
    --transition-normal: 250ms ease;
    --transition-slow: 350ms ease;

    --font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    --font-mono: 'Fira Code', 'Cascadia Code', 'JetBrains Mono', 'Consolas', monospace;
}

.light-theme {
    --bg-primary: #ffffff;
    --bg-secondary: #f9f9f9;
    --bg-tertiary: #f0f0f0;
    --bg-hover: #e5e5e5;
    --bg-active: #dddddd;
    --bg-input: #ffffff;
    --bg-user-msg: #f0f0f0;
    --bg-assistant-msg: transparent;
    --bg-code: #f6f8fa;
    --bg-modal: #ffffff;
    --bg-overlay: rgba(0, 0, 0, 0.5);

    --text-primary: #2c2c2c;
    --text-secondary: #555555;
    --text-tertiary: #888888;
    --text-placeholder: #999999;
    --text-code: #24292e;

    /* Accent remains mostly same but adjusted slightly for contrast if needed */
    --accent: #10a37f;
    --accent-hover: #0d8c6d;
    --accent-gradient: linear-gradient(135deg, #10a37f, #1a7f64);
    --accent-glow: rgba(16, 163, 127, 0.1);

    --danger: #ef4444;
    --danger-hover: #dc2626;

    --border: #e0e0e0;
    --border-light: #d0d0d0;
}

.wide-mode {
    --input-max-width: 95%;
    --messages-max-width: 95%;
}

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

html,
body {
    height: 100%;
    overflow: hidden;
    font-family: var(--font-family);
    font-size: 15px;
    line-height: 1.6;
    color: var(--text-primary);
    background: var(--bg-primary);
    -webkit-font-smoothing: antialiased;
}

body {
    display: flex;
}

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

a:hover {
    text-decoration: underline;
}

::selection {
    background: var(--accent);
    color: #fff;
}

/* Scrollbar */
::-webkit-scrollbar {
    width: 6px;
}

::-webkit-scrollbar-track {
    background: transparent;
}

::-webkit-scrollbar-thumb {
    background: var(--border);
    border-radius: 3px;
}

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

/* ========================================================
   Sidebar
   ======================================================== */
.sidebar {
    width: var(--sidebar-width);
    min-width: var(--sidebar-width);
    height: 100vh;
    background: var(--bg-secondary);
    display: flex;
    flex-direction: column;
    border-right: 1px solid var(--border);
    transition: margin-left var(--transition-normal), opacity var(--transition-normal);
    z-index: 100;
}

.sidebar.collapsed {
    margin-left: calc(-1 * var(--sidebar-width));
    opacity: 0;
    pointer-events: none;
}

.sidebar-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 4px;
    padding: 12px;
    border-bottom: 1px solid var(--border);
}

.btn-new-chat {
    flex: 1;
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 10px 14px;
    background: transparent;
    border: none;
    border-radius: var(--radius-sm);
    color: var(--text-secondary);
    font-size: 14px;
    font-weight: 500;
    cursor: pointer;
    transition: all var(--transition-fast);
}

.model-trigger #model-trigger-text {
    max-width: 220px;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

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

.sidebar-search {
    padding: 8px 12px;
}

.sidebar-search input {
    width: 100%;
    padding: 8px 12px;
    background: var(--bg-tertiary);
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    color: var(--text-primary);
    font-size: 13px;
    font-family: var(--font-family);
    outline: none;
    transition: border-color var(--transition-fast);
}

.sidebar-search input:focus {
    border-color: var(--accent);
}

.sidebar-search input::placeholder {
    color: var(--text-placeholder);
}

#toast-container {
    position: fixed;
    right: 16px;
    bottom: 16px;
    display: flex;
    flex-direction: column;
    gap: 8px;
    z-index: 9999;
    pointer-events: none;
}

.toast {
    min-width: 260px;
    max-width: 360px;
    padding: 10px 12px;
    border-radius: var(--radius-sm);
    background: var(--bg-secondary);
    border: 1px solid var(--border);
    color: var(--text-primary);
    font-size: 13px;
    box-shadow: 0 10px 24px rgba(0, 0, 0, 0.35);
    opacity: 0;
    transform: translateY(6px);
    transition: opacity var(--transition-fast), transform var(--transition-fast);
}

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

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

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

.toast-warning {
    border-color: #f59e0b;
}

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

@keyframes skeletonShimmer {
    0% {
        background-position: -400px 0;
    }

    100% {
        background-position: 400px 0;
    }
}

.skeleton {
    background: linear-gradient(90deg, var(--bg-secondary) 25%, var(--bg-tertiary) 50%, var(--bg-secondary) 75%);
    background-size: 800px 100%;
    animation: skeletonShimmer 1.2s ease-in-out infinite;
    border-radius: 4px;
}

.conversation-list {
    flex: 1;
    overflow-y: auto;
    padding: 8px;
}

.conv-item {
    display: flex;
    align-items: center;
    gap: 16px;
    padding: 10px 12px;
    border-radius: var(--radius-sm);
    cursor: pointer;
    transition: background var(--transition-fast);
    margin-bottom: 2px;
    position: relative;
}

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

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

.conv-item-icon {
    width: 18px;
    height: 18px;
    margin-right: 10px;
    flex-shrink: 0;
    color: var(--text-tertiary);
}

.conv-item-text {
    flex: 1;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
    font-size: 14px;
    color: var(--text-secondary);
}

.conv-item.active .conv-item-text {
    color: var(--text-primary);
}

.conv-item-edit {
    width: 100%;
    padding: 2px 4px;
    background: var(--bg-input);
    border: 1px solid var(--accent);
    border-radius: 4px;
    color: var(--text-primary);
    font-size: 14px;
    font-family: var(--font-family);
    outline: none;
}

.sidebar-footer {
    padding: 12px;
    border-top: 1px solid var(--border);
}

.btn-settings {
    display: flex;
    align-items: center;
    gap: 8px;
    width: 100%;
    padding: 10px 14px;
    background: transparent;
    border: none;
    border-radius: var(--radius-sm);
    color: var(--text-secondary);
    font-size: 14px;
    cursor: pointer;
    transition: all var(--transition-fast);
}

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

.btn-settings.active {
    background: var(--accent);
    color: white;
    box-shadow: 0 0 12px var(--accent-glow);
}

.btn-settings.active:hover {
    background: var(--accent);
    opacity: 0.9;
}

.btn-settings.active svg {
    filter: drop-shadow(0 0 4px rgba(255, 255, 255, 0.5));
}

/* ========================================================
   Main Area
   ======================================================== */
.main {
    flex: 1;
    display: flex;
    flex-direction: column;
    height: 100vh;
    min-width: 0;
}

/* Top bar */
.topbar {
    position: relative;
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 0;
    height: 0;
    border-bottom: none;
    background: transparent;
    z-index: 50;
    pointer-events: none;
}

#sidebar-toggle-btn {
    position: absolute;
    top: 8px;
    left: 8px;
    pointer-events: auto;
    z-index: 60;
}

.topbar-spacer {
    flex: 1;
}

.model-select {
    padding: 6px 12px;
    background: var(--bg-tertiary);
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    color: var(--text-primary);
    font-size: 14px;
    font-family: var(--font-family);
    cursor: pointer;
    outline: none;
    min-width: 180px;
    transition: border-color var(--transition-fast);
}

.model-select:focus {
    border-color: var(--accent);
}

.topbar-model {
    position: relative;
    display: flex;
    align-items: center;
}

/* Topbar Capabilities & RAG Switch */
.topbar-caps {
    display: flex;
    align-items: center;
    gap: 8px;
    margin-left: 12px;
    font-size: 11px;
    color: var(--text-tertiary);
    border: 1px solid var(--border);
    padding: 0 12px;
    background: var(--bg-tertiary);
    border-radius: var(--radius-sm);
    height: 34px;
    white-space: nowrap;
}

.caps-item {
    display: flex;
    align-items: center;
    gap: 4px;
}

.caps-label {
    font-weight: 500;
    opacity: 0.8;
}

.caps-sep {
    color: var(--border);
    margin: 0 2px;
}

/* RAG Toggle Switch */
.rag-control {
    cursor: pointer;
    margin-left: 4px;
    gap: 8px;
    color: var(--text-secondary);
    transition: color var(--transition-fast);
}

.rag-control:hover {
    color: var(--text-primary);
}

.rag-switch {
    position: relative;
    display: inline-block;
    width: 32px;
    height: 18px;
}

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

.rag-slider {
    position: absolute;
    cursor: pointer;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-color: var(--text-disabled);
    transition: .3s;
    border-radius: 34px;
}

.rag-slider:before {
    position: absolute;
    content: "";
    height: 14px;
    width: 14px;
    left: 2px;
    bottom: 2px;
    background-color: white;
    transition: .3s;
    border-radius: 50%;
}

input:checked+.rag-slider {
    background-color: var(--accent);
}

input:checked+.rag-slider:before {
    transform: translateX(14px);
}

input:focus+.rag-slider {
    box-shadow: 0 0 1px var(--accent);
}

/* ========================================================
   Drag & Drop Overlay
   ======================================================== */
.drag-drop-overlay {
    position: fixed;
    inset: 0;
    z-index: 500;
    background: rgba(16, 163, 127, 0.08);
    backdrop-filter: blur(2px);
    display: flex;
    align-items: center;
    justify-content: center;
    pointer-events: none;
    opacity: 0;
    transition: opacity 0.15s ease;
}

.drag-drop-overlay.active {
    opacity: 1;
    pointer-events: all;
}

.drag-drop-overlay-inner {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 16px;
    padding: 48px 64px;
    background: var(--bg-secondary);
    border: 2px dashed var(--accent);
    border-radius: 20px;
    box-shadow: 0 0 0 8px rgba(16, 163, 127, 0.08), 0 20px 60px rgba(0, 0, 0, 0.3);
    animation: dd-pulse 1.5s ease-in-out infinite;
}

@keyframes dd-pulse {

    0%,
    100% {
        box-shadow: 0 0 0 8px rgba(16, 163, 127, 0.08), 0 20px 60px rgba(0, 0, 0, 0.3);
    }

    50% {
        box-shadow: 0 0 0 14px rgba(16, 163, 127, 0.15), 0 20px 60px rgba(0, 0, 0, 0.3);
    }
}

.drag-drop-overlay-icon {
    color: var(--accent);
    opacity: 0.9;
}

.drag-drop-overlay-text {
    font-size: 20px;
    font-weight: 600;
    color: var(--text-primary);
}

.drag-drop-overlay-sub {
    font-size: 13px;
    color: var(--text-tertiary);
}


/* Icon button */
.btn-icon {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 36px;
    height: 36px;
    background: transparent;
    border: none;
    border-radius: var(--radius-sm);
    color: var(--text-secondary);
    cursor: pointer;
    transition: all var(--transition-fast);
}

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

/* ========================================================
   Messages Container
   ======================================================== */
.messages-container {
    flex: 1;
    overflow-y: auto;
    display: flex;
    flex-direction: column;
    scroll-behavior: smooth;
}

/* Welcome Screen */
.welcome-screen {
    flex: 1;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 40px 20px;
    opacity: 1;
    transition: opacity var(--transition-normal);
}

.welcome-screen.hidden {
    display: none;
}

.welcome-icon {
    margin-bottom: 20px;
    color: var(--text-tertiary);
}

.welcome-screen h1 {
    font-size: 28px;
    font-weight: 600;
    background: var(--accent-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: 8px;
}

.welcome-sub {
    font-size: 16px;
    color: var(--text-tertiary);
}

/* Messages thread */
.messages {
    max-width: var(--messages-max-width);
    width: 100%;
    margin: 0 auto;
    padding: 24px 20px 12px;
}

/* Single message */
.message {
    display: flex;
    gap: 16px;
    padding: 16px 0;
    animation: msgFadeIn 0.3s ease;
}

@keyframes msgFadeIn {
    from {
        opacity: 0;
        transform: translateY(8px);
    }

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

.message-avatar {
    width: 32px;
    height: 32px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    font-size: 14px;
    font-weight: 600;
}

.message.user .message-avatar {
    background: var(--accent-gradient);
    color: #fff;
}

.message.assistant .message-avatar {
    background: var(--bg-tertiary);
    border: 1px solid var(--border);
    color: var(--accent);
}

.message-body {
    flex: 1;
    min-width: 0;
}

.message-role {
    font-size: 13px;
    font-weight: 600;
    margin-bottom: 4px;
    text-transform: capitalize;
}

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

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

.message-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 10px;
    margin-bottom: 4px;
}

.message-actions {
    display: flex;
    align-items: center;
    gap: 6px;
}

.message-inline-stats {
    display: none;
    font-size: 11px;
    font-family: var(--font-mono);
    color: var(--text-tertiary);
    margin-top: 6px;
    padding-top: 6px;
    border-top: 1px dashed var(--border);
    justify-content: flex-end;
    gap: 12px;
}

body.show-chat-stats .message-inline-stats {
    display: flex;
}

body.show-chat-stats .global-chat-stats {
    display: flex !important;
}

.chat-stats-bar {
    display: none;
    font-size: 13px;
    color: var(--text-secondary);
    background: var(--bg-tertiary);
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    padding: 8px 12px;
    margin: 10px auto;
    max-width: var(--messages-max-width);
    text-align: center;
    font-weight: 500;
}

body.show-chat-stats .chat-stats-bar {
    display: block;
}

.btn-edit-message {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    border: none;
    background: transparent;
    color: var(--text-secondary);
    cursor: pointer;
    padding: 8px 12px;
    border-radius: 8px;
    font-size: 14px;
    line-height: 1;
    min-width: 40px;
    min-height: 36px;
    font-weight: 500;
    transition: background var(--transition-fast), color var(--transition-fast);
}

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

.message-edit-textarea {
    width: 100%;
    min-height: 90px;
    resize: vertical;
    padding: 10px 12px;
    border-radius: 10px;
    border: 1px solid var(--border);
    background: var(--bg-tertiary);
    color: var(--text-primary);
    font-family: var(--font-family);
    font-size: 14px;
    outline: none;
}

.message-edit-textarea:focus {
    border-color: var(--accent);
}

.message-edit-actions {
    display: flex;
    justify-content: flex-end;
    gap: 8px;
    margin-top: 8px;
}

.message-content {
    font-size: 15px;
    line-height: 1.7;
    color: var(--text-primary);
    word-wrap: break-word;
    overflow-wrap: break-word;
}

.message-content img {
    max-width: 100%;
    height: auto;
    border-radius: var(--radius-sm);
    margin: 8px 0;
    display: block;
}

/* Markdown content styling */
.message-content p {
    margin-bottom: 12px;
}

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

.message-content ul,
.message-content ol {
    margin: 8px 0 12px 20px;
}

.message-content li {
    margin-bottom: 4px;
}

.message-content blockquote {
    border-left: 3px solid var(--accent);
    padding: 4px 16px;
    margin: 8px 0;
    color: var(--text-secondary);
    background: var(--bg-tertiary);
    border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
}

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

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

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

.message-content h1,
.message-content h2,
.message-content h3,
.message-content h4,
.message-content h5,
.message-content h6 {
    margin: 16px 0 8px;
    font-weight: 600;
}

.message-content h1 {
    font-size: 1.5em;
}

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

.message-content h3 {
    font-size: 1.15em;
}

/* Code blocks */
.message-content code {
    font-family: var(--font-mono);
    font-size: 13px;
    background: var(--bg-code);
    padding: 2px 6px;
    border-radius: 4px;
    color: var(--text-code);
}

.code-block-wrapper {
    position: relative;
    margin: 12px 0;
    border-radius: var(--radius-sm);
    overflow: hidden;
    border: 1px solid var(--border);
}

.code-block-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 6px 12px;
    background: #1a1a2e;
    font-size: 12px;
    color: var(--text-tertiary);
    font-family: var(--font-mono);
}

.btn-copy-code {
    display: flex;
    align-items: center;
    gap: 4px;
    padding: 4px 8px;
    background: transparent;
    border: 1px solid var(--border);
    border-radius: 4px;
    color: var(--text-tertiary);
    font-size: 12px;
    cursor: pointer;
    transition: all var(--transition-fast);
    font-family: var(--font-family);
}

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

.btn-copy-code.copied {
    color: var(--accent);
    border-color: var(--accent);
}

.code-block-wrapper pre {
    margin: 0;
    padding: 14px 16px;
    background: #0d1117;
    overflow-x: auto;
}


.code-block-wrapper pre code {
    background: transparent;
    padding: 0;
    border-radius: 0;
    font-size: 13px;
    line-height: 1.5;
    color: #e0e0e0;
    /* Force light text color for dark code blocks */
}

/* Typing cursor */
.typing-cursor {
    display: inline-block;
    width: 7px;
    height: 18px;
    background: var(--accent);
    margin-left: 2px;
    vertical-align: text-bottom;
    animation: blink 0.8s infinite;
    border-radius: 1px;
}

@keyframes blink {

    0%,
    50% {
        opacity: 1;
    }

    51%,
    100% {
        opacity: 0;
    }
}

/* Thinking indicator */
.thinking-indicator {
    display: flex;
    gap: 4px;
    padding: 8px 0;
}

.thinking-indicator span {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: var(--text-tertiary);
    animation: thinking 1.4s ease-in-out infinite;
}

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

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

@keyframes thinking {

    0%,
    80%,
    100% {
        transform: scale(0.6);
        opacity: 0.4;
    }

    40% {
        transform: scale(1);
        opacity: 1;
    }
}

/* ========================================================
   Input Area
   ======================================================== */
.input-area {
    padding: 0 20px 24px;
    display: flex;
    flex-direction: column;
    align-items: center;
    position: relative;
    z-index: 10;
}

.input-wrapper {
    display: flex;
    flex-direction: column;
    gap: 0;
    max-width: var(--input-max-width);
    width: 100%;
    background: var(--bg-secondary);
    border: 1px solid var(--border);
    border-radius: 20px;
    padding: 12px 16px;
    transition: all var(--transition-fast);
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.2);
}

.input-wrapper:focus-within {
    border-color: var(--accent);
    background: var(--bg-tertiary);
    box-shadow: 0 4px 24px rgba(16, 163, 127, 0.15);
}

.message-input {
    width: 100%;
    background: transparent;
    border: none;
    outline: none;
    color: var(--text-primary);
    font-size: 15px;
    font-family: var(--font-family);
    resize: none;
    max-height: 200px;
    padding: 4px 0 12px;
    line-height: 1.6;
    min-height: 24px;
}

.message-input::placeholder {
    color: var(--text-placeholder);
    opacity: 0.7;
}

/* Bottom Controls Bar */
.input-bottom-controls {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding-top: 10px;
    border-top: 1px solid rgba(255, 255, 255, 0.06);
    margin-top: 4px;
}

.input-controls-left {
    display: flex;
    align-items: center;
    gap: 8px;
}

.input-controls-right {
    display: flex;
    align-items: center;
    gap: 12px;
}

.input-disclaimer {
    cursor: pointer;
}

.input-disclaimer:hover {
    text-decoration: underline;
}

.input-disclaimer:focus {
    outline: 2px solid rgba(16, 163, 127, 0.35);
    outline-offset: 2px;
    border-radius: 6px;
}

/* Custom Model Selector */
.custom-model-select {
    position: relative;
}

.model-trigger {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 6px 10px;
    background: transparent;
    border: 1px solid transparent;
    border-radius: 8px;
    color: var(--text-secondary);
    font-size: 13px;
    font-weight: 500;
    cursor: pointer;
    transition: all var(--transition-fast);
}

.model-trigger:hover {
    background: rgba(255, 255, 255, 0.05);
    color: var(--text-primary);
}

.model-trigger svg {
    opacity: 0.6;
    transition: transform var(--transition-fast);
}

.custom-model-select:hover .model-trigger svg {
    transform: translateY(2px);
}

.model-dropdown {
    position: absolute;
    bottom: calc(100% + 12px);
    left: 0;
    width: 280px;
    max-height: 320px;
    overflow-y: auto;
    background: var(--bg-secondary);
    border: 1px solid var(--border);
    border-radius: 12px;
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.4);
    z-index: 150;
    display: flex;
    flex-direction: column;
    padding: 6px;
    animation: slideUpFade 0.2s cubic-bezier(0.16, 1, 0.3, 1);
}

@keyframes slideUpFade {
    from {
        opacity: 0;
        transform: translateY(10px) scale(0.98);
    }

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

.model-option-group {
    padding: 8px 10px 4px;
    font-size: 11px;
    font-weight: 700;
    color: var(--text-tertiary);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.model-option {
    display: flex;
    align-items: center;
    justify-content: flex-start;
    gap: 12px;
    padding: 10px;
    border-radius: 8px;
    cursor: pointer;
    transition: all var(--transition-fast);
    border: 1px solid transparent;
    margin-bottom: 2px;
}

.model-option:hover {
    background: var(--bg-hover);
}

.model-option.selected {
    background: rgba(16, 163, 127, 0.1);
    border-color: rgba(16, 163, 127, 0.2);
    color: var(--accent);
}

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

.model-option-name {
    font-size: 14px;
    font-weight: 500;
    color: var(--text-primary);
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.model-option.selected .model-option-name {
    color: var(--accent);
}

.model-option-caps-text {
    font-size: 11px;
    color: var(--text-tertiary);
    margin-top: 2px;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.model-badge {
    font-size: 10px;
    background: rgba(255, 255, 255, 0.1);
    padding: 2px 6px;
    border-radius: 4px;
    color: var(--text-secondary);
    letter-spacing: 0.5px;
    margin-left: auto;
}

/* Icon Toggle Button (DLP, WebSearch, RAG) */
.icon-toggle-btn {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    cursor: pointer;
    font-size: 13px;
    color: var(--text-tertiary);
    transition: all var(--transition-fast);
    padding: 6px 8px;
    border-radius: 8px;
    background: transparent;
    user-select: none;
    overflow: hidden;
}

.icon-toggle-btn:hover {
    color: var(--text-primary);
    background: rgba(255, 255, 255, 0.05);
}

.icon-toggle-btn .icon-toggle-svg {
    transition: all var(--transition-fast);
    flex-shrink: 0;
}

/* Specific colors when active */
#dlp-toggle-input:checked~.icon-toggle-svg,
#dlp-toggle-input:checked~.icon-toggle-label {
    color: #e67e22;
    /* Warning orange for DLP */
}

#websearch-toggle-input:checked~.icon-toggle-svg,
#websearch-toggle-input:checked~.icon-toggle-label {
    color: #3498db;
    /* Blue for Web Search */
}

#rag-toggle-input:checked~.icon-toggle-svg,
#rag-toggle-input:checked~.icon-toggle-label {
    color: var(--accent);
    /* Green accent for RAG */
}

/* Hover reveal for the label */
.icon-toggle-label {
    max-width: 0;
    opacity: 0;
    white-space: nowrap;
    transition: max-width 0.3s cubic-bezier(0.4, 0, 0.2, 1), opacity 0.2s ease;
    font-weight: 500;
}

.icon-toggle-btn:hover .icon-toggle-label {
    max-width: 120px;
    opacity: 1;
}

.btn-send,
.btn-stop {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 34px;
    height: 34px;
    border: none;
    border-radius: 10px;
    cursor: pointer;
    transition: all 0.2s cubic-bezier(0.16, 1, 0.3, 1);
    flex-shrink: 0;
}

.btn-send {
    background: var(--accent);
    color: #fff;
    box-shadow: 0 2px 10px rgba(16, 163, 127, 0.2);
}

.btn-send:hover:not(:disabled) {
    background: var(--accent-hover);
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(16, 163, 127, 0.3);
}

.btn-send:disabled {
    opacity: 0.5;
    background: var(--bg-tertiary);
    color: var(--text-tertiary);
    box-shadow: none;
    cursor: not-allowed;
}

.btn-icon-sm {
    width: 32px;
    height: 32px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 8px;
    color: var(--text-tertiary);
    background: transparent;
    transition: all var(--transition-fast);
    border: none;
    cursor: pointer;
}

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

.input-disclaimer {
    font-size: 11px;
    color: var(--text-tertiary);
    margin-top: 8px;
    text-align: center;
    opacity: 0.6;
}

/* ========================================================
   Modal
   ======================================================== */
.modal-overlay {
    position: fixed;
    inset: 0;
    background: var(--bg-overlay);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 200;
    animation: fadeIn 0.2s ease;
}

.modal-overlay.hidden {
    display: none;
}

@keyframes fadeIn {
    from {
        opacity: 0;
    }

    to {
        opacity: 1;
    }
}

.modal {
    background: var(--bg-modal);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    width: 90%;
    max-width: 520px;
    height: auto;
    max-height: 90vh;
    display: flex;
    flex-direction: column;
    box-shadow: var(--shadow-lg);
    animation: modalSlideIn 0.25s ease;
    overflow: hidden;
    /* Ensure rounded corners clip content */
}

@keyframes modalSlideIn {
    from {
        opacity: 0;
        transform: translateY(-20px) scale(0.95);
    }

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

.modal-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 16px 20px;
    border-bottom: 1px solid var(--border);
}

.modal-header h2 {
    font-size: 18px;
    font-weight: 600;
}

.modal-body {
    padding: 20px;
    flex: 1;
    overflow-y: auto;
}

.setting-group {
    margin-bottom: 20px;
}

.setting-group:last-child {
    margin-bottom: 0;
}

.setting-group label {
    display: block;
    font-size: 14px;
    font-weight: 500;
    margin-bottom: 6px;
    color: var(--text-secondary);
}

.setting-input,
.setting-textarea {
    width: 100%;
    padding: 10px 12px;
    background: var(--bg-input);
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    color: var(--text-primary);
    font-size: 14px;
    font-family: var(--font-family);
    outline: none;
    transition: border-color var(--transition-fast);
}

.setting-input:focus,
.setting-textarea:focus {
    border-color: var(--accent);
}

.setting-input::placeholder,
.setting-textarea::placeholder {
    color: var(--text-placeholder);
}

.setting-textarea {
    resize: vertical;
    min-height: 80px;
}

.setting-range {
    width: 100%;
    -webkit-appearance: none;
    appearance: none;
    height: 6px;
    background: var(--bg-tertiary);
    border-radius: 3px;
    outline: none;
    margin-top: 4px;
}

.setting-range::-webkit-slider-thumb {
    -webkit-appearance: none;
    width: 18px;
    height: 18px;
    border-radius: 50%;
    background: var(--accent);
    cursor: pointer;
    border: 2px solid var(--bg-primary);
    transition: transform var(--transition-fast);
}

.setting-range::-webkit-slider-thumb:hover {
    transform: scale(1.15);
}

.setting-hint {
    font-size: 12px;
    color: var(--text-tertiary);
    margin-top: 4px;
    display: block;
}

/* ── Settings Modal Tabs ── */
.settings-tabs {
    display: flex;
    gap: 0;
    border-bottom: 1px solid var(--border);
    padding: 0 20px;
}

.settings-tab-btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 12px 20px;
    background: transparent;
    border: none;
    border-bottom: 2px solid transparent;
    color: var(--text-tertiary);
    font-size: 14px;
    font-weight: 500;
    font-family: var(--font-family);
    cursor: pointer;
    transition: all var(--transition-fast);
}

.settings-tab-btn:hover {
    color: var(--text-secondary);
}

.settings-tab-btn.active {
    color: var(--accent);
    border-bottom-color: var(--accent);
}

.settings-tab-btn svg {
    opacity: 0.7;
}

.settings-tab-btn.active svg {
    opacity: 1;
}

.settings-tab-content {
    display: block;
}

.settings-tab-content.hidden {
    display: none;
}

/* 2-column row for language + theme */
.settings-row-2col {
    display: flex;
    gap: 16px;
}

.settings-row-2col .setting-group {
    flex: 1;
}

/* Toggle rows for checkboxes */
.settings-toggle-row {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 12px 0;
    border-top: 1px solid rgba(255, 255, 255, 0.04);
}

.settings-toggle-row label {
    font-size: 14px;
    font-weight: 500;
    color: var(--text-secondary);
    margin: 0;
    cursor: pointer;
}

.settings-checkbox {
    width: 20px;
    height: 20px;
    cursor: pointer;
    accent-color: var(--accent);
}

/* ── Prompt Templates ── */
.pt-description {
    display: flex;
    align-items: flex-start;
    gap: 10px;
    padding: 12px 16px;
    background: rgba(16, 163, 127, 0.06);
    border: 1px solid rgba(16, 163, 127, 0.12);
    border-radius: 10px;
    margin-bottom: 20px;
    font-size: 13px;
    color: var(--text-secondary);
    line-height: 1.5;
}

.pt-description code {
    background: rgba(255, 255, 255, 0.1);
    padding: 1px 6px;
    border-radius: 4px;
    font-weight: 600;
    color: var(--accent);
}

.pt-add-card {
    background: var(--bg-tertiary);
    border: 1px solid var(--border);
    border-radius: 12px;
    padding: 16px 20px;
    margin-bottom: 20px;
}

.pt-add-card h4 {
    font-size: 14px;
    font-weight: 600;
    color: var(--text-secondary);
    margin: 0 0 14px 0;
}

.pt-add-fields {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.pt-field-row {
    display: flex;
    gap: 12px;
}

.pt-field {
    display: flex;
    flex-direction: column;
    gap: 4px;
    flex: 1;
}

.pt-field label {
    font-size: 12px;
    font-weight: 500;
    color: var(--text-tertiary);
    text-transform: uppercase;
    letter-spacing: 0.3px;
}

.pt-command-input-wrap {
    position: relative;
}

.pt-slash-prefix {
    position: absolute;
    left: 10px;
    top: 50%;
    transform: translateY(-50%);
    color: var(--accent);
    font-weight: 700;
    font-size: 15px;
    pointer-events: none;
}

.pt-list {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.pt-card {
    display: flex;
    align-items: flex-start;
    gap: 12px;
    padding: 12px 16px;
    background: var(--bg-secondary);
    border: 1px solid var(--border);
    border-left: 3px solid var(--accent);
    border-radius: 8px;
    transition: all var(--transition-fast);
}

.pt-card:hover {
    background: var(--bg-hover);
    border-color: rgba(16, 163, 127, 0.3);
    border-left-color: var(--accent);
}

.pt-card-info {
    flex: 1;
    min-width: 0;
}

.pt-card-command {
    font-weight: 600;
    color: var(--accent);
    font-size: 14px;
}

.pt-card-title {
    font-size: 13px;
    color: var(--text-secondary);
    margin-left: 6px;
}

.pt-card-content {
    font-size: 12px;
    color: var(--text-tertiary);
    margin-top: 4px;
    white-space: pre-wrap;
    line-height: 1.4;
    max-height: 60px;
    overflow: hidden;
    text-overflow: ellipsis;
}

.pt-card .btn-icon-sm.danger {
    color: var(--text-tertiary);
    flex-shrink: 0;
}

.pt-card .btn-icon-sm.danger:hover {
    color: var(--danger);
    background: rgba(239, 68, 68, 0.1);
}

.pt-empty {
    text-align: center;
    padding: 32px 16px;
    color: var(--text-tertiary);
    font-size: 14px;
}

.pt-empty svg {
    display: block;
    margin: 0 auto 12px;
    opacity: 0.4;
}

.modal-footer {
    padding: 16px 20px;
    border-top: 1px solid var(--border);
    display: flex;
    justify-content: flex-end;
}

.btn-primary {
    padding: 10px 24px;
    background: var(--accent);
    color: #fff;
    border: none;
    border-radius: var(--radius-sm);
    font-size: 14px;
    font-weight: 500;
    font-family: var(--font-family);
    cursor: pointer;
    transition: all var(--transition-fast);
}

.btn-primary:hover {
    background: var(--accent-hover);
    transform: translateY(-1px);
}

.btn-secondary {
    padding: 10px 24px;
    background: transparent;
    color: var(--text-secondary);
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    font-size: 14px;
    font-weight: 500;
    font-family: var(--font-family);
    cursor: pointer;
    transition: all var(--transition-fast);
}

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

/* ========================================================
   Context Menu
   ======================================================== */
.context-menu {
    position: fixed;
    background: var(--bg-modal);
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    box-shadow: var(--shadow-md);
    z-index: 300;
    min-width: 160px;
    padding: 4px;
    animation: fadeIn 0.15s ease;
}

.context-menu.hidden {
    display: none;
}

.context-menu-item {
    display: flex;
    align-items: center;
    gap: 8px;
    width: 100%;
    padding: 8px 12px;
    background: transparent;
    border: none;
    border-radius: 4px;
    color: var(--text-secondary);
    font-size: 14px;
    font-family: var(--font-family);
    cursor: pointer;
    transition: all var(--transition-fast);
    text-align: left;
}

.context-menu-item:hover {
    background: var(--bg-hover);
    color: var(--text-primary);
}

.context-menu-item.danger:hover {
    background: rgba(239, 68, 68, 0.15);
    color: var(--danger);
}

.context-menu-divider {
    height: 1px;
    background: var(--border);
    margin: 4px 0;
}

.context-menu-label {
    padding: 6px 12px 4px;
    font-size: 11px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    color: var(--text-tertiary);
}

/* ========================================================
   Auth Screens
   ======================================================== */
.auth-container {
    width: 100%;
    height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--bg-primary);
}

.admin-endpoint-block .ep-models-list {
    display: none;
}

.admin-endpoint-block.expanded .ep-models-list {
    display: block;
}

.ep-accordion-toggle {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 32px;
    height: 32px;
    border-radius: 8px;
    background: transparent;
    border: 1px solid transparent;
    color: var(--text-secondary);
    cursor: pointer;
    transition: all var(--transition-fast);
    flex: 0 0 auto;
}

.ep-accordion-toggle:hover {
    background: var(--bg-hover);
    color: var(--text-primary);
}

.ep-accordion-chevron {
    transition: transform var(--transition-fast);
}

.admin-endpoint-block.expanded .ep-accordion-chevron {
    transform: rotate(180deg);
}

.auth-screen {
    width: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 20px;
}

.auth-card {
    width: 100%;
    max-width: 420px;
    background: var(--bg-secondary);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: 40px 32px;
    box-shadow: var(--shadow-lg);
    animation: modalSlideIn 0.35s ease;
}

.auth-logo {
    display: flex;
    justify-content: center;
    margin-bottom: 12px;
    color: var(--accent);
}

.auth-lang-container {
    display: flex;
    justify-content: center;
    margin-bottom: 24px;
}

.auth-lang-select {
    padding: 4px 10px;
    background: transparent;
    border: 1px solid var(--border);
    border-radius: var(--radius-xl);
    color: var(--text-tertiary);
    font-size: 12px;
    font-family: var(--font-family);
    outline: none;
    cursor: pointer;
    transition: all var(--transition-fast);
    text-align: center;
    appearance: none;
    -webkit-appearance: none;
    text-align-last: center;
    min-width: 80px;
}

.auth-lang-select:hover {
    border-color: var(--border-light);
    color: var(--text-secondary);
    background: var(--bg-hover);
}

.auth-lang-select:focus {
    border-color: var(--accent);
    color: var(--text-primary);
}

.auth-card h1 {
    text-align: center;
    font-size: 24px;
    font-weight: 600;
    margin-bottom: 6px;
    background: var(--accent-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.auth-subtitle {
    text-align: center;
    color: var(--text-tertiary);
    font-size: 14px;
    margin-bottom: 28px;
}

.auth-form {
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.form-group {
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.form-group label {
    font-size: 13px;
    font-weight: 500;
    color: var(--text-secondary);
}

.form-input {
    width: 100%;
    padding: 10px 14px;
    background: var(--bg-input);
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    color: var(--text-primary);
    font-size: 14px;
    font-family: var(--font-family);
    outline: none;
    transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
}

.form-input:focus {
    border-color: var(--accent);
    box-shadow: 0 0 0 2px var(--accent-glow);
}

.form-input::placeholder {
    color: var(--text-placeholder);
}

.form-row {
    display: flex;
    gap: 12px;
}

.form-row .form-group {
    flex: 1;
}

.form-error {
    color: var(--danger);
    font-size: 13px;
    min-height: 20px;
    margin: 0;
}

.btn-auth {
    width: 100%;
    padding: 12px;
    background: var(--accent);
    color: #fff;
    border: none;
    border-radius: var(--radius-sm);
    font-size: 15px;
    font-weight: 600;
    font-family: var(--font-family);
    cursor: pointer;
    transition: all var(--transition-fast);
}

.btn-auth:hover {
    background: var(--accent-hover);
    transform: translateY(-1px);
    box-shadow: 0 4px 12px rgba(16, 163, 127, 0.3);
}

.auth-switch {
    text-align: center;
    margin-top: 20px;
    font-size: 14px;
    color: var(--text-tertiary);
}

.auth-switch a {
    color: var(--accent);
    font-weight: 500;
    margin-left: 4px;
}

/* ========================================================
   Sidebar User & Category Filters
   ======================================================== */
.sidebar-user {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 8px 4px;
    margin-bottom: 8px;
}

.user-avatar-sm {
    width: 28px;
    height: 28px;
    background: var(--bg-tertiary);
    border: 1px solid var(--border);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    color: var(--text-tertiary);
}

.user-name {
    flex: 1;
    font-size: 13px;
    font-weight: 500;
    color: var(--text-secondary);
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.category-filters {
    display: flex;
    flex-wrap: wrap;
    gap: 4px;
    padding: 4px 12px 8px;
}

.cat-filter-btn {
    display: flex;
    align-items: center;
    gap: 4px;
    padding: 4px 10px;
    background: var(--bg-tertiary);
    border: 1px solid transparent;
    border-radius: var(--radius-xl);
    color: var(--text-tertiary);
    font-size: 12px;
    font-family: var(--font-family);
    cursor: pointer;
    transition: all var(--transition-fast);
    white-space: nowrap;
}

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

.cat-filter-btn.active {
    background: var(--accent);
    color: #fff;
    border-color: var(--accent);
}

.cat-manage-btn {
    padding: 4px 8px;
}

.cat-dot {
    width: 10px;
    height: 10px;
    border-radius: 50%;
    flex-shrink: 0;
}

.cat-dot-sm {
    display: inline-block;
    width: 8px;
    height: 8px;
    border-radius: 50%;
    flex-shrink: 0;
}

/* Conversation group */
.conv-group {
    margin-bottom: 8px;
}

.conv-group-header {
    display: flex;
    align-items: center;
    gap: 6px;
    padding: 6px 12px 4px;
    font-size: 11px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    color: var(--text-tertiary);
}

.conv-group-title {
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

/* ========================================================
   Category Modal
   ======================================================== */
.modal-sm {
    max-width: 400px;
}

.cat-add-row {
    display: flex;
    gap: 8px;
    align-items: center;
    margin-bottom: 16px;
}

.cat-add-row .setting-input {
    flex: 1;
}

.cat-color-picker {
    width: 38px;
    height: 38px;
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    background: transparent;
    cursor: pointer;
    padding: 2px;
}

.cat-color-picker::-webkit-color-swatch-wrapper {
    padding: 2px;
}

.cat-color-picker::-webkit-color-swatch {
    border: none;
    border-radius: 4px;
}

.btn-sm {
    padding: 8px 16px;
    font-size: 13px;
}

.cat-list {
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.cat-list-item {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 8px 12px;
    background: var(--bg-tertiary);
    border-radius: var(--radius-sm);
}

.cat-list-name {
    flex: 1;
    font-size: 14px;
    color: var(--text-primary);
}

.cat-delete-btn {
    width: 28px;
    height: 28px;
    color: var(--text-tertiary);
}

.cat-delete-btn:hover {
    color: var(--danger);
}

/* ========================================================
   App Container
   ======================================================== */
.app-container {
    display: flex;
    width: 100%;
    height: 100vh;
}

/* ========================================================
   Admin Panel
   ======================================================== */
.modal-lg {
    max-width: 680px;
}

.modal-xl {
    width: 90vw;
    height: 90vh;
    max-width: 1400px;
    max-height: 900px;
    /* Sensible max height for desktop */
}

@media (min-width: 1600px) {
    .modal-xl {
        max-height: 1000px;
    }
}

.modal-xl .modal-body {
    flex: 1;
    display: flex;
    flex-direction: row;
    /* Sidebar and Main side-by-side (KB style) */
    padding: 0;
    overflow: hidden;
    height: 100%;
}

/* Admin Panel specific overrides */
#admin-modal .modal-body {
    flex-direction: column;
    overflow-y: auto;
    padding: 20px;
    height: auto;
    /* Allow flex: 1 from .modal to work naturally */
}

#admin-modal .admin-tab-content {
    width: 100%;
    flex: 1;
    display: flex;
    flex-direction: column;
}

.admin-list {
    display: flex;
    flex-direction: column;
    gap: 8px;
    width: 100%;
}

.admin-tabs {
    display: flex;
    gap: 0;
    border-bottom: 1px solid var(--border);
    padding: 0 20px;
}

.admin-tab-btn {
    padding: 10px 20px;
    background: transparent;
    border: none;
    border-bottom: 2px solid transparent;
    color: var(--text-tertiary);
    font-size: 14px;
    font-weight: 500;
    font-family: var(--font-family);
    cursor: pointer;
    transition: all var(--transition-fast);
}

.admin-tab-btn:hover {
    color: var(--text-secondary);
}

.admin-tab-btn.active {
    color: var(--accent);
    border-bottom-color: var(--accent);
}

.admin-add-form {
    margin-bottom: 20px;
    padding-bottom: 16px;
    border-bottom: 1px solid var(--border);
}

.admin-add-form h3 {
    font-size: 14px;
    font-weight: 600;
    color: var(--text-secondary);
    margin-bottom: 10px;
}

.admin-add-row {
    display: flex;
    gap: 8px;
    margin-bottom: 8px;
}

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

.admin-role-select {
    max-width: 100px;
}

.admin-list {
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.admin-user-row,
.admin-endpoint-row {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 12px 16px;
    background: var(--bg-secondary);
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    transition: all var(--transition-fast);
}

.admin-endpoint-row:hover {
    border-color: var(--accent);
    background: var(--bg-hover);
}

.admin-user-row:hover {
    background: var(--bg-hover);
}

.admin-user-info {
    flex: 1;
    min-width: 0;
}

.admin-user-name {
    font-size: 14px;
    font-weight: 500;
    color: var(--text-primary);
}

.admin-user-email {
    font-size: 12px;
    color: var(--text-tertiary);
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.admin-user-badges {
    display: flex;
    gap: 6px;
    flex-shrink: 0;
}

.badge {
    display: inline-flex;
    align-items: center;
    padding: 2px 8px;
    border-radius: var(--radius-xl);
    font-size: 11px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.badge-admin {
    background: rgba(16, 163, 127, 0.15);
    color: var(--accent);
}

.badge-user {
    background: rgba(180, 180, 180, 0.1);
    color: var(--text-tertiary);
}

.badge-blocked {
    background: rgba(239, 68, 68, 0.15);
    color: var(--danger);
}

.admin-actions {
    display: flex;
    gap: 4px;
    flex-shrink: 0;
}

.btn-admin-sm {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 32px;
    height: 32px;
    background: transparent;
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    cursor: pointer;
    font-size: 14px;
    transition: all var(--transition-fast);
}

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

.btn-delete-user:hover {
    background: rgba(239, 68, 68, 0.1);
    border-color: var(--danger);
}

.btn-default-active {
    border-color: var(--accent);
    background: var(--accent-glow);
}

.admin-you {
    font-size: 12px;
    color: var(--text-tertiary);
    font-style: italic;
    padding: 0 8px;
}

.admin-empty {
    text-align: center;
    color: var(--text-tertiary);
    padding: 20px;
    font-size: 14px;
}

.admin-ep-info {
    flex: 1;
    min-width: 0;
    display: flex;
    flex-direction: column;
}

.admin-ep-name {
    font-size: 14px;
    font-weight: 500;
    color: var(--text-primary);
}

.admin-ep-url {
    font-size: 12px;
    color: var(--text-tertiary);
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

/* Endpoint model blocks */
.admin-endpoint-block {
    margin-bottom: 24px;
    border: 1px solid var(--border);
    border-radius: var(--radius-md);
    overflow: hidden;
    background: var(--bg-primary);
}

.admin-endpoint-block .admin-endpoint-row {
    border: none;
    border-bottom: 1px solid var(--border);
    border-radius: 0;
    background: var(--bg-tertiary);
}

/* ── Model row: flex layout ─────────────────────────── */
.ep-model-row {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 10px 16px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.04);
    transition: opacity var(--transition-fast);
}

.ep-model-row:last-child {
    border-bottom: none;
}

.ep-model-row.ep-model-inactive {
    opacity: 0.45;
}

.ep-model-logo-container {
    width: 36px;
    height: 36px;
    flex-shrink: 0;
    display: flex;
    align-items: center;
    justify-content: center;
}

.ep-model-details {
    flex: 1;
    display: flex;
    flex-direction: column;
    gap: 2px;
    min-width: 0;
}

.ep-model-display-name {
    font-size: 13px;
    font-weight: 500;
    color: var(--text-primary);
    cursor: pointer;
    padding: 2px 4px;
    border-radius: var(--radius-xs);
    transition: background var(--transition-fast);
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
    min-width: 0;
}

.ep-model-display-name:hover {
    background: var(--bg-hover);
}

.ep-model-meta {
    font-size: 11px;
    color: var(--text-tertiary);
    padding-left: 4px;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.ep-model-meta code {
    font-size: 10px;
    background: rgba(255, 255, 255, 0.06);
    padding: 1px 4px;
    border-radius: 3px;
}

.ep-model-rename-input,
.admin-ep-rename-input {
    font-size: 13px;
    padding: 2px 4px;
    background: var(--bg-input);
    border: 1px solid var(--accent);
    border-radius: var(--radius-xs);
    color: var(--text-primary);
    width: 100%;
    outline: none;
}

.ep-model-empty {
    font-size: 12px;
    color: var(--text-tertiary);
    padding: 12px 16px;
    font-style: italic;
}

.model-access-api-name {
    font-size: 11px;
    color: var(--text-tertiary);
    margin-left: 4px;
}

.ep-model-caps {
    display: flex;
    flex-wrap: wrap;
    gap: 4px;
    margin-top: 3px;
    padding-left: 4px;
}

.badge-cap {
    display: inline-flex;
    align-items: center;
    gap: 2px;
    padding: 1px 6px;
    border-radius: var(--radius-xl);
    font-size: 10px;
    font-weight: 500;
    background: rgba(16, 163, 127, 0.1);
    color: var(--accent);
    border: 1px solid rgba(16, 163, 127, 0.2);
}

/* ── Actions strip (right side of model row) ──────── */
.ep-model-actions {
    display: flex;
    align-items: center;
    gap: 8px;
    flex-shrink: 0;
}

.btn-edit-caps {
    font-size: 16px;
    background: transparent;
    border: none;
    cursor: pointer;
    opacity: 0.6;
    transition: opacity var(--transition-fast);
    padding: 4px;
}

.btn-edit-caps:hover {
    opacity: 1;
}

.ep-model-control-group {
    display: flex;
    align-items: center;
    gap: 4px;
}

.ep-control-label {
    font-size: 10px;
    color: var(--text-tertiary);
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.04em;
    user-select: none;
}

.ep-compact-input {
    width: 52px;
    padding: 3px 6px;
    font-size: 12px;
    border: 1px solid var(--border);
    border-radius: var(--radius-xs);
    background: var(--bg-input);
    color: var(--text-primary);
    outline: none;
    text-align: center;
    transition: border-color var(--transition-fast);
    appearance: textfield;
    -moz-appearance: textfield;
}

.ep-compact-input::-webkit-inner-spin-button,
.ep-compact-input::-webkit-outer-spin-button {
    -webkit-appearance: none;
    margin: 0;
}

.ep-compact-input:focus {
    border-color: var(--accent);
}


/* ========================================================
   Model Access Panel (inside admin modal)
   ======================================================== */
.model-access-panel {
    margin-top: 16px;
    padding-top: 16px;
    border-top: 2px solid var(--accent);
}

.model-access-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 12px;
}

.model-access-header h3 {
    font-size: 14px;
    font-weight: 600;
    color: var(--text-primary);
    margin: 0;
}

.model-access-body {
    max-height: 300px;
    overflow-y: auto;
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.model-access-group {
    background: var(--bg-tertiary);
    border-radius: var(--radius-sm);
    padding: 10px 12px;
}

.model-access-group-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 8px;
    padding-bottom: 6px;
    border-bottom: 1px solid var(--border);
}

.model-access-group-header strong {
    font-size: 13px;
    color: var(--accent);
}

.model-access-models {
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.model-access-item {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 4px 6px;
    border-radius: var(--radius-xs);
    cursor: pointer;
    font-size: 13px;
    color: var(--text-secondary);
    transition: background var(--transition-fast);
}

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

.model-access-item input[type="checkbox"] {
    accent-color: var(--accent);
    width: 16px;
    height: 16px;
}

.model-access-footer {
    margin-top: 12px;
    display: flex;
    justify-content: flex-end;
}

/* ========================================================
   Sidebar Version
   ======================================================== */
.sidebar-version {
    font-size: 11px;
    color: var(--text-tertiary);
    text-align: center;
    margin-top: 12px;
    opacity: 0.6;
}



/* ========================================================
   RAG Admin Config
   ======================================================== */
.rag-config-section {
    margin-bottom: 20px;
}

.rag-config-hint {
    opacity: 0.7;
    font-size: 0.9em;
    margin-top: 5px;
}

.rag-model-group {
    margin-bottom: 24px;
}

.rag-config-label {
    display: block;
    margin-bottom: 8px;
    font-weight: 500;
}

.rag-model-select {
    width: 100%;
    margin-bottom: 8px;
}

.rag-model-hint {
    opacity: 0.6;
    font-size: 0.85em;
}

.rag-config-actions {
    display: flex;
    justify-content: flex-end;
}

.rag-status {
    margin-top: 16px;
}

/* ========================================================
   RAG Source Citations
   ======================================================== */
.rag-sources {
    display: flex;
    align-items: center;
    flex-wrap: wrap;
    gap: 6px;
    margin-top: 10px;
    padding: 8px 10px;
    background: var(--bg-tertiary);
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    font-size: 12px;
    color: var(--text-secondary);
}

.rag-sources-label {
    font-weight: 600;
    color: var(--text-tertiary);
    white-space: nowrap;
}

.rag-source-badge {
    display: inline-flex;
    align-items: center;
    padding: 2px 8px;
    background: var(--bg-hover);
    border: 1px solid var(--border);
    border-radius: var(--radius-xl);
    font-size: 11px;
    color: var(--accent);
    cursor: default;
    transition: background var(--transition-fast);
}

.rag-source-badge:hover {
    background: var(--accent-glow);
}

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

/* Mobile responsive */
@media (max-width: 768px) {
    .sidebar {
        position: fixed;
        left: 0;
        top: 0;
        z-index: 150;
        box-shadow: var(--shadow-lg);
    }

    .sidebar.collapsed {
        margin-left: calc(-1 * var(--sidebar-width));
    }

    .messages {
        padding: 16px 12px 8px;
    }

    .input-area {
        padding: 0 12px 12px;
    }

    .input-wrapper {
        border-radius: var(--radius-md);
    }

    .auth-card {
        padding: 28px 20px;
    }

    .form-row {
        flex-direction: column;
        gap: 16px;
    }

    .admin-add-row {
        flex-wrap: wrap;
    }

    .modal-lg,
    .modal-xl {
        max-width: 95%;
    }
}

/* ========================================================
   Attachments
   ======================================================== */
.file-preview-area {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    padding: 8px 12px 0;
    width: 100%;
}

.file-preview-item {
    position: relative;
    width: 60px;
    height: 60px;
    border-radius: var(--radius-sm);
    overflow: hidden;
    border: 1px solid var(--border);
}

.file-preview-img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.file-preview-remove {
    position: absolute;
    top: 2px;
    right: 2px;
    width: 18px;
    height: 18px;
    background: rgba(0, 0, 0, 0.6);
    color: #fff;
    border: none;
    border-radius: 50%;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 12px;
    padding: 0;
    line-height: 1;
    transition: background var(--transition-fast);
}

.file-preview-remove:hover {
    background: var(--danger);
}

.input-wrapper {
    /* Allow wrapping for preview area */
    flex-wrap: wrap;
}

/* Toggle Switch */
.switch {
    position: relative;
    display: inline-block;
    width: 44px;
    height: 24px;
}

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

.slider {
    position: absolute;
    cursor: pointer;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-color: var(--bg-tertiary);
    transition: .4s;
    border: 1px solid var(--border);
}

.slider:before {
    position: absolute;
    content: "";
    height: 18px;
    width: 18px;
    left: 2px;
    bottom: 2px;
    background-color: var(--text-secondary);
    transition: .4s;
}

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

input:checked+.slider:before {
    transform: translateX(20px);
    background-color: #fff;
}

.slider.round {
    border-radius: 24px;
}

.slider.round:before {
    border-radius: 50%;
}

/* Group Badges */
.badge-group {
    background: var(--bg-tertiary);
    color: var(--text-secondary);
    border: 1px solid var(--border);
    font-size: 10px;
    padding: 2px 6px;
    border-radius: var(--radius-xl);
}

/* Settings Group List (Checkbox List) */
.settings-group-list {
    background: var(--bg-secondary);
    padding: 10px;
    border-radius: var(--radius-sm);
    border: 1px solid var(--border);
}

.checkbox-label span {
    font-size: 14px;
    color: var(--text-primary);
}

/* ========================================================
   Knowledge Base UI (Phase 4)
   ======================================================== */
.kb-header-actions {
    display: flex;
    align-items: center;
    gap: 8px;
}

.kb-search {
    background: var(--bg-secondary);
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    padding: 6px 12px;
    color: var(--text-primary);
    font-size: 14px;
    width: 200px;
    transition: all var(--transition-fast);
}

.kb-search:focus {
    border-color: var(--accent);
    outline: none;
    width: 240px;
}

.kb-body {
    display: flex;
    flex: 1;
    /* Occupy remaining space in modal */
    padding: 0;
    overflow: hidden;
    min-height: 0;
    height: 100%;
    /* Fill the container */
}

.kb-upload-section {
    padding: 20px;
    background: var(--bg-tertiary);
    border-bottom: 1px solid var(--border);
}

.kb-upload-form {
    display: flex;
    flex-direction: column;
    gap: 16px;
    margin-top: 12px;
}

.kb-file-row {
    display: flex;
    gap: 12px;
    align-items: center;
}

.kb-access-control {
    display: flex;
    flex-wrap: wrap;
    gap: 24px;
    padding-top: 16px;
    border-top: 1px solid var(--border);
}

.toggle-control {
    display: flex;
    align-items: center;
    gap: 8px;
    cursor: pointer;
    font-size: 13px;
    color: var(--text-secondary);
}

.kb-groups-select {
    flex: 1;
    display: flex;
    flex-direction: column;
    gap: 8px;
    min-width: 200px;
}

.kb-groups-label {
    font-size: 13px;
    font-weight: 500;
    color: var(--text-secondary);
}

.groups-checkbox-list {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    max-height: 100px;
    overflow-y: auto;
    padding: 2px;
}

.group-checkbox-item {
    display: flex;
    align-items: center;
    gap: 6px;
    font-size: 13px;
    padding: 6px 10px;
    background: var(--bg-secondary);
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    cursor: pointer;
    transition: all .2s;
    user-select: none;
}

.group-checkbox-item:hover {
    border-color: var(--accent);
    background: var(--bg-hover);
}

.group-checkbox-item.checked {
    background: rgba(16, 163, 127, 0.1);
    border-color: var(--accent);
    color: var(--accent);
}

/* Table Styles */
.kb-list-container {
    flex: 1;
    overflow-y: auto;
    padding: 0;
    background: var(--bg-primary);
    min-height: 0;
    /* Allow shrinking in flex container */
    position: relative;
    border-top: 1px solid var(--border);
}

.kb-table {
    width: 100%;
    border-collapse: collapse;
    font-size: 13px;
}

.kb-table th {
    background: var(--bg-secondary);
    padding: 8px 12px;
    text-align: left;
    font-weight: 600;
    color: var(--text-secondary);
    position: sticky;
    top: 0;
    z-index: 10;
    border-bottom: 1px solid var(--border);
    white-space: nowrap;
}

.kb-table td {
    padding: 6px 12px;
    border-bottom: 1px solid var(--border);
    vertical-align: middle;
    color: var(--text-primary);
}

.kb-table tbody tr:last-child td {
    border-bottom: none;
}

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

.col-icon {
    width: 40px;
    text-align: center;
    color: var(--text-tertiary);
}

.col-name {
    font-weight: 500;
}

.col-date {
    width: 15%;
    color: var(--text-tertiary);
    font-size: 12px;
    white-space: nowrap;
}

.col-size {
    width: 10%;
    color: var(--text-tertiary);
    font-size: 12px;
    white-space: nowrap;
}

.col-access {
    width: 15%;
}

.col-actions {
    width: 120px;
    text-align: right;
    display: flex;
    justify-content: flex-end;
    gap: 4px;
}

.access-badge {
    display: inline-flex;
    align-items: center;
    gap: 4px;
    padding: 2px 8px;
    border-radius: 12px;
    font-size: 10px;
    font-weight: 600;
    text-transform: uppercase;
    white-space: nowrap;
}

.access-private {
    background: var(--bg-tertiary);
    color: var(--text-tertiary);
    border: 1px solid var(--border);
}

.access-public {
    background: rgba(16, 163, 127, 0.1);
    color: var(--accent);
    border: 1px solid rgba(16, 163, 127, 0.3);
}

.access-group {
    background: rgba(59, 130, 246, 0.1);
    color: #3b82f6;
    border: 1px solid rgba(59, 130, 246, 0.3);
}

.kb-footer-info {
    font-size: 12px;
    color: var(--text-tertiary);
}

.btn-icon-sm {
    padding: 4px;
    color: var(--text-tertiary);
    background: transparent;
    border-radius: 4px;
}

.btn-icon-sm.delete-btn:hover {
    color: var(--errorMessage);
    background: var(--bg-hover);
}

.btn-icon-sm.edit-btn:hover {
    color: var(--accent);
    background: var(--bg-hover);
}

.kb-permissions-form {
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.permissions-filename {
    font-size: 16px;
    color: var(--text-primary);
    margin-bottom: 8px;
    word-break: break-all;
}

/* --- Knowledge Base Categories --- */

.kb-layout {
    display: flex;
    flex: 1;
    width: 100%;
    height: 100%;
    /* Important: fill body */
    padding: 0 !important;
    overflow: hidden;
}

.kb-sidebar {
    width: 240px;
    background: var(--bg-secondary);
    border-right: 1px solid var(--border);
    display: flex;
    flex-direction: column;
    flex-shrink: 0;
    height: 100%;
    /* Sidebar full height */
}

.kb-main {
    flex: 1;
    display: flex;
    flex-direction: column;
    overflow: hidden;
    background: var(--bg-primary);
    min-height: 0;
}

.kb-cat-nav {
    display: flex;
    flex-direction: column;
    padding: 12px;
    gap: 4px;
    overflow-y: auto;
    flex: 1;
}

.kb-cat-item {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 8px 12px;
    border: 1px solid transparent;
    border-radius: var(--radius-sm);
    background: transparent;
    color: var(--text-secondary);
    cursor: pointer;
    font-size: 14px;
    text-align: left;
    transition: all var(--transition-fast);
}

.kb-cat-item:hover {
    background: var(--bg-hover);
    color: var(--text-primary);
}

.kb-cat-item.active {
    background: var(--bg-tertiary);
    color: var(--accent);
    border-color: var(--border);
    font-weight: 500;
}

.cat-icon {
    font-size: 16px;
    opacity: 0.8;
}

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

.cat-count {
    font-size: 11px;
    background: var(--bg-primary);
    padding: 2px 6px;
    border-radius: 10px;
    color: var(--text-tertiary);
}

.kb-cat-divider {
    height: 1px;
    background: var(--border);
    margin: 8px 0;
}

.kb-cat-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 4px 8px;
    font-size: 12px;
    font-weight: 600;
    color: var(--text-tertiary);
    text-transform: uppercase;
    letter-spacing: 0.5px;
    margin-bottom: 4px;
}

.kb-category-list {
    display: flex;
    flex-direction: column;
    gap: 2px;
}

/* Category Item Actions (Edit/Delete) */
.kb-cat-item .cat-actions {
    display: none;
    margin-left: 4px;
}

.kb-cat-item:hover .cat-actions {
    display: flex;
}

.btn-cat-edit {
    padding: 2px;
    color: var(--text-tertiary);
    border-radius: 4px;
}

.btn-cat-edit:hover {
    color: var(--accent);
    background: var(--bg-primary);
}

/* KB Upload Form Tweaks */
.kb-upload-section {
    flex-shrink: 0;
    margin-bottom: 16px;
    padding-bottom: 16px;
    border-bottom: 1px solid var(--border);
}

.kb-cat-select-wrapper {
    min-width: 140px;
}

.kb-cat-select {
    width: 100%;
    padding: 8px 12px;
    background: var(--bg-secondary);
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    color: var(--text-primary);
    font-size: 14px;
    outline: none;
    transition: all var(--transition-fast);
}

.kb-cat-select:focus {
    border-color: var(--accent);
    box-shadow: 0 0 0 2px rgba(var(--accent-rgb), 0.1);
}

/* List Container - make it scrollable */
.kb-list-container {
    flex: 1;
    overflow-y: auto;
    position: relative;
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
}

.kb-table thead th {
    position: sticky;
    top: 0;
    background: var(--bg-secondary);
    z-index: 10;
}

/* ========================================================
   Model Logos and Sort Controls
   ======================================================== */
.model-option-logo {
    width: 24px;
    height: 24px;
    border-radius: 4px;
    object-fit: contain;
    background: white;
    padding: 2px;
}

.model-logo-admin {
    width: 32px;
    height: 32px;
    border-radius: 4px;
    object-fit: contain;
    background: white;
    padding: 2px;
    cursor: pointer;
    border: 1px solid var(--border);
}

.model-sort-input {
    width: 50px;
    padding: 4px 8px;
    background: var(--bg-tertiary);
    border: 1px solid var(--border);
    border-radius: var(--radius-xs);
    color: var(--text-primary);
    font-size: 13px;
    text-align: center;
}

.ep-model-info {
    display: flex;
    align-items: center;
    gap: 12px;
    flex: 1;
}

.model-logo-upload-label {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 32px;
    height: 32px;
    border-radius: 4px;
    background: var(--bg-hover);
    border: 1px dashed var(--border-light);
    cursor: pointer;
    transition: all var(--transition-fast);
}

.model-logo-upload-label:hover {
    background: var(--bg-active);
    border-color: var(--accent);
}

.model-logo-upload-label svg {
    color: var(--text-tertiary);
}

/* Gemini Thinking Support */
thought {
    display: block;
    font-size: 0.9em;
    color: var(--text-tertiary);
    background: var(--bg-tertiary);
    border-left: 3px solid var(--accent);
    padding: 12px 16px;
    margin: 12px 0;
    border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
    font-style: italic;
    opacity: 0.9;
    line-height: 1.5;
}

thought::before {
    content: "Reasoning";
    display: block;
    font-style: normal;
    font-weight: 600;
    font-size: 0.75em;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-bottom: 6px;
    color: var(--accent);
}