/* ==========================================================================
   Multi-AI Chat – ChatGPT White Theme (2024-2025)
   Clean white/light theme matching ChatGPT's current light mode interface.
   Wrapper: .mac-app   Shortcode: [multi_ai_chat]
   ========================================================================== */

/* --------------------------------------------------------------------------
   0. WordPress Theme Override & Full-Page Reset
   -------------------------------------------------------------------------- */

/* When .mac-app is present, hide every WordPress theme element */
body.mac-active #wpadminbar,
body.mac-active header,
body.mac-active .site-header,
body.mac-active .entry-header,
body.mac-active .page-header,
body.mac-active nav.main-navigation,
body.mac-active .nav-menu,
body.mac-active footer,
body.mac-active .site-footer,
body.mac-active .widget-area,
body.mac-active aside:not(.mac-sidebar),
body.mac-active .sidebar:not(.mac-sidebar),
body.mac-active .site-branding,
body.mac-active .breadcrumbs,
body.mac-active .comments-area,
body.mac-active .post-navigation,
body.mac-active .entry-footer,
body.mac-active .entry-meta,
body.mac-active .wp-block-group,
body.mac-active #colophon,
body.mac-active #masthead,
body.mac-active #secondary,
body.mac-active .site-info {
    display: none !important;
}

body.mac-active,
body.mac-active html {
    margin: 0 !important;
    padding: 0 !important;
    overflow: hidden !important;
    background: #ffffff !important;
}

body.mac-active #page,
body.mac-active #content,
body.mac-active .site-content,
body.mac-active .entry-content,
body.mac-active .site,
body.mac-active main:not(.mac-main),
body.mac-active article,
body.mac-active .site-main,
body.mac-active .content-area {
    margin: 0 !important;
    padding: 0 !important;
    max-width: none !important;
    width: 100% !important;
    border: none !important;
    background: transparent !important;
}

/* --------------------------------------------------------------------------
   1. CSS Custom Properties
   -------------------------------------------------------------------------- */
.mac-app {
    --sidebar-bg: #f9f9f9;
    --sidebar-hover: #ececec;
    --sidebar-active: #ececec;
    --sidebar-width: 260px;
    --main-bg: #ffffff;
    --input-container-bg: #f4f4f4;
    --input-field-bg: #ffffff;
    --text-primary: #0d0d0d;
    --text-secondary: #6e6e80;
    --text-tertiary: #acacbe;
    --border-color: #e5e5e5;
    --accent-green: #10a37f;
    --accent-green-hover: #1a7f64;
    --user-msg-bg: #f7f7f8;
    --code-bg: #f7f7f8;
    --code-header-bg: #ececec;
    --header-height: 44px;
    --input-max-width: 768px;
    --messages-max-width: 768px;
    --radius-sm: 6px;
    --radius-md: 12px;
    --radius-lg: 16px;
    --radius-xl: 24px;
    --transition-fast: 0.15s ease;
    --transition-normal: 0.3s ease;
    --scrollbar-thumb: #c5c5d2;
    --modal-bg: #ffffff;
    --overlay-bg: rgba(0, 0, 0, 0.4);
    --credit-badge-bg: #f0fdf4;
    --credit-badge-text: #10a37f;
    --error-red: #ef4444;
    --low-credit: #ef4444;
}

/* --------------------------------------------------------------------------
   2. Full-Page Container
   -------------------------------------------------------------------------- */
.mac-app {
    position: fixed;
    top: 0;
    left: 0;
    width: 100vw;
    height: 100vh;
    z-index: 99999;
    display: flex;
    background: var(--main-bg);
    color: var(--text-primary);
    font-family: 'Söhne', 'ui-sans-serif', -apple-system, BlinkMacSystemFont,
        'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    font-size: 16px;
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    box-sizing: border-box;
    overflow: hidden;
}

.mac-app *,
.mac-app *::before,
.mac-app *::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

/* --------------------------------------------------------------------------
   3. Scrollbar
   -------------------------------------------------------------------------- */
.mac-app ::-webkit-scrollbar {
    width: 6px;
}

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

.mac-app ::-webkit-scrollbar-track {
    background: transparent;
}

.mac-app * {
    scrollbar-width: thin;
    scrollbar-color: var(--scrollbar-thumb) transparent;
}

/* --------------------------------------------------------------------------
   4. Sidebar
   -------------------------------------------------------------------------- */
.mac-sidebar {
    width: var(--sidebar-width);
    min-width: var(--sidebar-width);
    height: 100%;
    background: var(--sidebar-bg);
    border-right: 1px solid var(--border-color);
    display: flex;
    flex-direction: column;
    overflow: hidden;
    transition: transform var(--transition-normal),
                width var(--transition-normal),
                min-width var(--transition-normal);
}

.mac-sidebar.collapsed {
    width: 0;
    min-width: 0;
    transform: translateX(-100%);
}

/* --- Sidebar Logo --- */
.mac-sidebar-logo {
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 16px 12px 8px;
    flex-shrink: 0;
}

.mac-logo-img {
    width: calc(100% - 24px);
    max-width: 200px;
    height: auto;
    object-fit: contain;
}

/* --- Sidebar Header (New Chat) --- */
.mac-sidebar-header {
    padding: 8px 8px 4px;
    flex-shrink: 0;
}

.mac-new-chat-btn {
    display: flex;
    align-items: center;
    gap: 8px;
    width: 100%;
    padding: 10px 12px;
    background: transparent;
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    color: var(--text-primary);
    font-size: 14px;
    font-weight: 500;
    cursor: pointer;
    transition: background var(--transition-fast);
    text-align: left;
    line-height: 1.4;
    font-family: inherit;
}

.mac-new-chat-btn:hover {
    background: var(--sidebar-hover);
}

.mac-new-chat-btn .mac-icon {
    font-size: 18px;
    line-height: 1;
    flex-shrink: 0;
}

.mac-new-chat-btn svg {
    flex-shrink: 0;
    color: var(--text-primary);
}

/* --- Conversation List --- */
.mac-conversation-list {
    flex: 1;
    overflow-y: auto;
    overflow-x: hidden;
    padding: 4px 8px;
}

.mac-no-conversations {
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 32px 16px;
    font-size: 13px;
    color: var(--text-tertiary);
    text-align: center;
    line-height: 1.5;
}

/* Date Group Headers */
.mac-date-group {
    padding: 16px 12px 4px;
}

.mac-date-label {
    font-size: 12px;
    font-weight: 600;
    color: var(--text-secondary);
    text-transform: none;
    letter-spacing: 0;
    user-select: none;
}

/* Conversation Item */
.mac-conversation-item {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 8px 12px;
    border-radius: var(--radius-sm);
    cursor: pointer;
    transition: background var(--transition-fast);
    position: relative;
    overflow: hidden;
    min-height: 36px;
    background: transparent;
}

.mac-conversation-item:hover {
    background: var(--sidebar-hover);
}

.mac-conversation-item.active {
    background: var(--sidebar-active);
}

.mac-conversation-title,
.mac-conv-title {
    flex: 1;
    font-size: 14px;
    color: var(--text-primary);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    line-height: 1.4;
}

/* Fade-out mask for long titles */
.mac-conversation-item::after {
    content: '';
    position: absolute;
    right: 0;
    top: 0;
    bottom: 0;
    width: 40px;
    background: linear-gradient(to right, transparent, var(--sidebar-bg));
    pointer-events: none;
    transition: background var(--transition-fast);
}

.mac-conversation-item:hover::after {
    background: linear-gradient(to right, transparent, var(--sidebar-hover));
}

.mac-conversation-item.active::after {
    background: linear-gradient(to right, transparent, var(--sidebar-active));
}

/* Conversation actions (rename / delete) */
.mac-conversation-actions,
.mac-conv-actions {
    display: none;
    gap: 2px;
    position: absolute;
    right: 4px;
    top: 50%;
    transform: translateY(-50%);
    z-index: 2;
    background: var(--sidebar-hover);
    padding: 2px 4px;
    border-radius: 6px;
}

.mac-conversation-item.active .mac-conv-actions,
.mac-conversation-item.active .mac-conversation-actions {
    background: var(--sidebar-active);
}

.mac-conversation-item:hover .mac-conversation-actions,
.mac-conversation-item:hover .mac-conv-actions {
    display: flex;
}

.mac-conversation-actions button,
.mac-conv-actions button,
.mac-conv-rename,
.mac-conv-delete {
    background: transparent;
    border: none;
    color: var(--text-secondary);
    cursor: pointer;
    padding: 4px;
    border-radius: 4px;
    font-size: 14px;
    line-height: 1;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: color var(--transition-fast), background var(--transition-fast);
}

.mac-conversation-actions button:hover,
.mac-conv-actions button:hover,
.mac-conv-rename:hover,
.mac-conv-delete:hover {
    color: var(--text-primary);
    background: rgba(0, 0, 0, 0.06);
}

/* --- Sidebar Footer --- */
.mac-sidebar-footer {
    flex-shrink: 0;
    padding: 8px;
    border-top: 1px solid var(--border-color);
    display: flex;
    flex-direction: column;
    gap: 2px;
}

.mac-sidebar-btn {
    display: flex;
    align-items: center;
    gap: 10px;
    width: 100%;
    padding: 10px 12px;
    background: transparent;
    border: none;
    border-radius: var(--radius-sm);
    color: var(--text-primary);
    font-size: 14px;
    cursor: pointer;
    transition: background var(--transition-fast);
    text-align: left;
    line-height: 1.4;
    font-family: inherit;
}

.mac-sidebar-btn:hover {
    background: var(--sidebar-hover);
}

.mac-sidebar-btn svg,
.mac-sidebar-btn .mac-icon {
    font-size: 16px;
    flex-shrink: 0;
    color: var(--text-secondary);
}

.mac-sidebar-credit {
    padding: 8px 12px;
    font-size: 12px;
    color: var(--text-secondary);
    display: flex;
    align-items: center;
    gap: 6px;
}

/* Credit Info in sidebar footer */
.mac-credit-info {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 8px 12px;
    font-size: 13px;
    color: var(--text-secondary);
}

.mac-credit-info .mac-credit-label {
    color: var(--text-secondary);
    font-size: 13px;
}

.mac-credit-info .mac-credit-amount {
    font-weight: 600;
    color: var(--accent-green);
}

.mac-credit-info .mac-credit-amount.low-credit {
    color: var(--low-credit);
}

/* User info */
.mac-user-info {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 10px 12px;
    border-radius: var(--radius-sm);
    cursor: pointer;
    transition: background var(--transition-fast);
}

.mac-user-info:hover {
    background: var(--sidebar-hover);
}

.mac-user-avatar {
    width: 28px;
    height: 28px;
    border-radius: 50%;
    background: var(--accent-green);
    color: #fff;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 13px;
    font-weight: 600;
    flex-shrink: 0;
}

.mac-user-name {
    font-size: 14px;
    color: var(--text-primary);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

/* --------------------------------------------------------------------------
   5. Main Area
   -------------------------------------------------------------------------- */
.mac-main {
    flex: 1;
    display: flex;
    flex-direction: column;
    min-width: 0;
    height: 100%;
    background: var(--main-bg);
    position: relative;
}

/* --- Header Bar --- */
.mac-header {
    height: var(--header-height);
    min-height: var(--header-height);
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 16px;
    flex-shrink: 0;
    position: relative;
    z-index: 10;
    border-bottom: 1px solid var(--border-color);
    background: var(--main-bg);
}

.mac-header-left {
    display: flex;
    align-items: center;
    gap: 8px;
}

.mac-header-right {
    display: flex;
    align-items: center;
    gap: 10px;
}

/* Hamburger / Sidebar Toggle */
.mac-hamburger {
    display: none;
    align-items: center;
    justify-content: center;
    background: transparent;
    border: none;
    color: var(--text-primary);
    font-size: 20px;
    cursor: pointer;
    padding: 6px;
    border-radius: var(--radius-sm);
    transition: background var(--transition-fast);
    line-height: 1;
}

.mac-hamburger:hover {
    background: rgba(0, 0, 0, 0.06);
}

.mac-sidebar-toggle {
    display: none;
    align-items: center;
    justify-content: center;
    background: transparent;
    border: none;
    color: var(--text-primary);
    font-size: 20px;
    cursor: pointer;
    padding: 6px;
    border-radius: var(--radius-sm);
    transition: background var(--transition-fast);
    line-height: 1;
}

.mac-sidebar-toggle:hover {
    background: rgba(0, 0, 0, 0.06);
}

/* Model Selector Dropdown — 2-Level (Provider → Model) */
.mac-model-selector {
    position: relative;
    display: inline-flex;
}

.mac-model-btn {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 6px 10px;
    background: transparent;
    border: none;
    border-radius: var(--radius-sm);
    color: var(--text-primary);
    font-size: 15px;
    font-weight: 600;
    cursor: pointer;
    transition: background var(--transition-fast);
    line-height: 1.4;
    font-family: inherit;
}

.mac-model-btn:hover {
    background: rgba(0, 0, 0, 0.06);
}

/* model lock removed - free model switching */

/* Provider icon in header button */
.mac-provider-icon {
    width: 22px;
    height: 22px;
    border-radius: 6px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    font-size: 12px;
    font-weight: 700;
    flex-shrink: 0;
    color: #fff;
}
.mac-provider-icon.openai { background: #10a37f; }
.mac-provider-icon.google { background: #ef4444; }
.mac-provider-icon.anthropic { background: #d97706; }

.mac-model-dropdown {
    position: absolute;
    top: calc(100% + 4px);
    left: 0;
    width: 320px;
    background: var(--modal-bg);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    box-shadow: 0 4px 24px rgba(0, 0, 0, 0.12), 0 1px 4px rgba(0, 0, 0, 0.06);
    z-index: 100;
    padding: 0;
    opacity: 0;
    visibility: hidden;
    transform: translateY(-4px);
    transition: opacity var(--transition-fast),
                visibility var(--transition-fast),
                transform var(--transition-fast);
    overflow: hidden;
}

.mac-model-dropdown.active {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

/* Provider Tabs */
.mac-provider-tabs {
    display: flex;
    border-bottom: 1px solid var(--border-color);
    background: #fafafa;
}

.mac-provider-tab {
    flex: 1;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 6px;
    padding: 12px 8px;
    border: none;
    background: transparent;
    font-size: 13px;
    font-weight: 500;
    color: var(--text-secondary);
    cursor: pointer;
    transition: all 0.15s;
    font-family: inherit;
    position: relative;
}

.mac-provider-tab:hover {
    color: var(--text-primary);
    background: rgba(0, 0, 0, 0.03);
}

.mac-provider-tab.active {
    color: var(--text-primary);
    font-weight: 600;
}

.mac-provider-tab.active::after {
    content: '';
    position: absolute;
    bottom: -1px;
    left: 12px;
    right: 12px;
    height: 2px;
    background: var(--text-primary);
    border-radius: 2px 2px 0 0;
}

.mac-provider-tab-icon {
    width: 20px;
    height: 20px;
    border-radius: 5px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    font-size: 11px;
    font-weight: 700;
    color: #fff;
    flex-shrink: 0;
}

.mac-provider-tab-icon.openai { background: #10a37f; }
.mac-provider-tab-icon.google { background: #ef4444; }
.mac-provider-tab-icon.anthropic { background: #d97706; }

/* Model List */
.mac-model-list {
    padding: 6px;
    max-height: 300px;
    overflow-y: auto;
}

.mac-model-option {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 12px;
    border-radius: var(--radius-sm);
    cursor: pointer;
    transition: background var(--transition-fast);
    border: none;
    background: transparent;
    width: 100%;
    text-align: left;
    color: var(--text-primary);
    font-size: 14px;
    font-family: inherit;
}

.mac-model-option:hover {
    background: rgba(0, 0, 0, 0.04);
}

.mac-model-option.active {
    background: rgba(16, 163, 127, 0.08);
}

.mac-model-option-info {
    flex: 1;
    min-width: 0;
}

.mac-model-option-name {
    font-size: 14px;
    font-weight: 500;
    color: var(--text-primary);
    line-height: 1.3;
}

.mac-model-option-desc {
    font-size: 12px;
    color: var(--text-secondary);
    line-height: 1.3;
    margin-top: 2px;
}

.mac-model-option-cost {
    font-size: 12px;
    color: var(--text-secondary);
    white-space: nowrap;
    flex-shrink: 0;
    background: rgba(0, 0, 0, 0.04);
    padding: 3px 8px;
    border-radius: 10px;
    font-weight: 500;
}

.mac-model-option.active .mac-model-option-cost {
    background: rgba(16, 163, 127, 0.12);
    color: #10a37f;
}

.mac-model-check {
    flex-shrink: 0;
}

/* Image Generate button */
.mac-image-gen-btn {
    display: flex;
    align-items: center;
    gap: 6px;
    padding: 6px 12px;
    background: transparent;
    border: 1px solid var(--border-color);
    border-radius: 9999px;
    color: var(--text-primary);
    font-size: 13px;
    cursor: pointer;
    transition: background var(--transition-fast);
    white-space: nowrap;
    font-family: inherit;
}

.mac-image-gen-btn:hover {
    background: rgba(0, 0, 0, 0.04);
}

/* Credit Badge */
.mac-credit-badge {
    display: flex;
    align-items: center;
    gap: 4px;
    padding: 4px 10px;
    background: var(--credit-badge-bg);
    border-radius: 9999px;
    font-size: 12px;
    color: var(--credit-badge-text);
    white-space: nowrap;
    font-weight: 600;
}

.mac-credit-badge.low-credit {
    background: #fef2f2;
    color: var(--error-red);
}

.mac-credit-badge svg {
    color: currentColor;
}

/* --------------------------------------------------------------------------
   6. Messages Area
   -------------------------------------------------------------------------- */
.mac-messages {
    flex: 1;
    overflow-y: auto;
    overflow-x: hidden;
    padding: 0 16px;
    scroll-behavior: smooth;
}

.mac-messages-inner {
    max-width: var(--messages-max-width);
    margin: 0 auto;
    padding: 16px 0 24px;
}

/* Welcome / Empty State */
.mac-welcome {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    height: 100%;
    min-height: 300px;
    text-align: center;
    padding: 40px 20px;
}

.mac-welcome h1,
.mac-welcome-title {
    font-size: 28px;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 8px;
}

.mac-welcome-subtitle {
    font-size: 15px;
    color: var(--text-secondary);
    max-width: 480px;
    line-height: 1.5;
}

/* --- Individual Message --- */
.mac-message {
    padding: 12px 0;
    animation: macFadeIn 0.3s ease;
}

.mac-message + .mac-message {
    margin-top: 4px;
}

/* User Message - right aligned with subtle background */
.mac-message.user {
    display: flex;
    justify-content: flex-end;
}

.mac-message.user .mac-message-content {
    background: var(--user-msg-bg);
    border-radius: var(--radius-lg);
    padding: 12px 16px;
    max-width: 85%;
    word-wrap: break-word;
    overflow-wrap: break-word;
}

/* Assistant Message - no bubble, left aligned */
.mac-message.assistant {
    display: flex;
    gap: 12px;
    align-items: flex-start;
}

.mac-message-avatar {
    width: 28px;
    height: 28px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    font-size: 14px;
    font-weight: 600;
    margin-top: 2px;
}

.mac-message-avatar.gpt {
    background: #10a37f;
    color: #fff;
}

.mac-message-avatar.gemini {
    background: #ef4444;
    color: #fff;
}

.mac-message-avatar.claude {
    background: #d97706;
    color: #fff;
}

.mac-message.assistant .mac-message-content {
    flex: 1;
    min-width: 0;
    padding: 0;
    background: transparent;
}

/* Message Content Typography */
.mac-message-content {
    font-size: 16px;
    line-height: 1.7;
    color: var(--text-primary);
}

.mac-message-text {
    font-size: 16px;
    line-height: 1.7;
    color: var(--text-primary);
}

/* 생성된 이미지/영상 크기 제한 + 다운로드 */
.mac-gen-image-wrapper {
    position: relative;
    display: inline-block;
    max-width: 360px;
    margin: 8px 0;
    border-radius: 12px;
    overflow: hidden;
}

.mac-generated-image,
.mac-message-text img {
    display: block;
    max-width: 100%;
    height: auto;
    border-radius: 12px;
    cursor: pointer;
    transition: opacity 0.15s;
}

.mac-generated-image:hover,
.mac-message-text img:hover {
    opacity: 0.92;
}

.mac-generated-video {
    display: block;
    width: 100%;
    max-width: 360px;
    border-radius: 12px;
}

.mac-img-download-btn {
    position: absolute;
    bottom: 8px;
    right: 8px;
    width: 32px;
    height: 32px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(0,0,0,0.55);
    color: #fff;
    border-radius: 8px;
    text-decoration: none;
    opacity: 0;
    transition: opacity 0.15s;
}

.mac-gen-image-wrapper:hover .mac-img-download-btn {
    opacity: 1;
}

.mac-img-download-btn:hover {
    background: rgba(0,0,0,0.75);
}

.mac-img-download-btn svg {
    stroke: white;
}

.mac-message-content p {
    margin-bottom: 12px;
}

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

.mac-message-content h1,
.mac-message-content h2,
.mac-message-content h3,
.mac-message-content h4,
.mac-message-content h5,
.mac-message-content h6 {
    color: var(--text-primary);
    font-weight: 600;
    margin: 20px 0 8px;
    line-height: 1.3;
}

.mac-message-content h1 { font-size: 24px; }
.mac-message-content h2 { font-size: 20px; }
.mac-message-content h3 { font-size: 17px; }
.mac-message-content h4 { font-size: 15px; }

.mac-message-content ul,
.mac-message-content ol {
    padding-left: 24px;
    margin-bottom: 12px;
}

.mac-message-content li {
    margin-bottom: 4px;
    line-height: 1.6;
}

.mac-message-content li::marker {
    color: var(--text-secondary);
}

.mac-message-content strong,
.mac-message-content b {
    font-weight: 600;
    color: var(--text-primary);
}

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

.mac-message-content a {
    color: var(--accent-green);
    text-decoration: underline;
    text-underline-offset: 2px;
}

.mac-message-content a:hover {
    color: var(--accent-green-hover);
}

/* Inline code */
.mac-message-content code:not(pre code) {
    background: var(--code-bg);
    padding: 2px 6px;
    border-radius: 4px;
    font-size: 14px;
    font-family: 'Söhne Mono', 'Menlo', 'Consolas', 'Monaco', monospace;
    color: #ab4642;
    border: 1px solid var(--border-color);
}

/* Blockquotes */
.mac-message-content blockquote {
    border-left: 3px solid var(--border-color);
    padding: 4px 0 4px 16px;
    margin: 12px 0;
    color: var(--text-secondary);
}

/* Tables */
.mac-message-content table {
    width: 100%;
    border-collapse: collapse;
    margin: 12px 0;
    font-size: 14px;
}

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

.mac-message-content th {
    background: var(--code-bg);
    font-weight: 600;
    color: var(--text-primary);
}

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

/* Message attachments */
.mac-message-attachments {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    margin-bottom: 8px;
}

.mac-attachment-image {
    max-width: 300px;
    max-height: 300px;
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: opacity var(--transition-fast);
    object-fit: cover;
}

.mac-attachment-image:hover {
    opacity: 0.9;
}

.mac-attachment-file {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 8px 12px;
    background: var(--code-bg);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
    font-size: 13px;
    color: var(--text-primary);
    cursor: pointer;
    transition: background var(--transition-fast);
}

.mac-attachment-file:hover {
    background: var(--sidebar-hover);
}

/* Message Meta (model, tokens, cost) */
.mac-message-meta {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-top: 8px;
    font-size: 12px;
    color: var(--text-secondary);
    flex-wrap: wrap;
}

.mac-message-meta span {
    display: inline-flex;
    align-items: center;
    gap: 3px;
}

/* Message actions (copy, etc.) */
.mac-message-actions {
    display: flex;
    gap: 4px;
    margin-top: 6px;
    opacity: 0;
    transition: opacity var(--transition-fast);
}

.mac-message:hover .mac-message-actions {
    opacity: 1;
}

.mac-message-action-btn {
    background: transparent;
    border: none;
    color: var(--text-secondary);
    cursor: pointer;
    padding: 4px 6px;
    border-radius: 4px;
    font-size: 14px;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: color var(--transition-fast), background var(--transition-fast);
}

.mac-message-action-btn:hover {
    color: var(--text-primary);
    background: rgba(0, 0, 0, 0.06);
}

/* --------------------------------------------------------------------------
   7. Code Blocks
   -------------------------------------------------------------------------- */
.mac-code-block {
    margin: 12px 0;
    border-radius: var(--radius-sm);
    overflow: hidden;
    background: var(--code-bg);
    border: 1px solid var(--border-color);
}

.mac-code-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 6px 12px;
    background: var(--code-header-bg);
    border-bottom: 1px solid var(--border-color);
}

.mac-code-language {
    font-size: 12px;
    color: var(--text-secondary);
    font-family: 'Söhne Mono', 'Menlo', 'Consolas', monospace;
    text-transform: lowercase;
}

.mac-copy-code,
.mac-code-copy-btn {
    display: flex;
    align-items: center;
    gap: 4px;
    background: transparent;
    border: none;
    color: var(--text-secondary);
    font-size: 12px;
    cursor: pointer;
    padding: 4px 8px;
    border-radius: 4px;
    transition: color var(--transition-fast), background var(--transition-fast);
    font-family: inherit;
}

.mac-copy-code:hover,
.mac-code-copy-btn:hover {
    color: var(--text-primary);
    background: rgba(0, 0, 0, 0.06);
}

.mac-code-block pre {
    margin: 0;
    padding: 16px;
    overflow-x: auto;
    background: transparent;
}

.mac-code-block pre code {
    font-family: 'Söhne Mono', 'Menlo', 'Consolas', 'Monaco', 'Liberation Mono', monospace;
    font-size: 13px;
    line-height: 1.6;
    color: #1f2328;
    white-space: pre;
    tab-size: 4;
    background: transparent;
    padding: 0;
    border: none;
}

/* --------------------------------------------------------------------------
   8. Image & File Attachments (in messages)
   -------------------------------------------------------------------------- */
.mac-message-image {
    max-width: 400px;
    border-radius: var(--radius-md);
    margin: 8px 0;
    cursor: pointer;
    transition: opacity var(--transition-fast);
}

.mac-message-image:hover {
    opacity: 0.9;
}

.mac-file-card {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    padding: 10px 14px;
    background: var(--code-bg);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    margin: 8px 0;
    max-width: 320px;
    cursor: pointer;
    transition: background var(--transition-fast);
}

.mac-file-card:hover {
    background: var(--sidebar-hover);
}

.mac-file-icon {
    width: 32px;
    height: 32px;
    border-radius: 6px;
    background: rgba(0, 0, 0, 0.06);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 16px;
    flex-shrink: 0;
}

.mac-file-info {
    min-width: 0;
}

.mac-file-name {
    font-size: 13px;
    font-weight: 500;
    color: var(--text-primary);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

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

/* --------------------------------------------------------------------------
   9. Typing Indicator
   -------------------------------------------------------------------------- */
.mac-typing-indicator {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    padding: 12px 0;
}

.mac-typing-content {
    display: flex;
    align-items: center;
    gap: 8px;
    background: var(--msg-ai-bg, #f7f7f8);
    padding: 10px 16px;
    border-radius: 16px;
}

.mac-typing-status {
    font-size: 13px;
    color: var(--text-secondary);
    font-weight: 500;
    white-space: nowrap;
}

.mac-typing-dots {
    display: flex;
    align-items: center;
    gap: 4px;
}

.mac-typing-dot {
    width: 6px;
    height: 6px;
    border-radius: 50%;
    background: var(--text-tertiary);
    animation: macBounce 1.4s ease-in-out infinite;
}

.mac-typing-indicator span:nth-child(1),
.mac-typing-dot:nth-child(1) {
    animation-delay: 0s;
}

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

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

@keyframes macBounce {
    0%, 60%, 100% {
        transform: translateY(0);
        opacity: 0.4;
    }
    30% {
        transform: translateY(-6px);
        opacity: 1;
    }
}

/* --------------------------------------------------------------------------
   10. Input Area
   -------------------------------------------------------------------------- */
.mac-input-area {
    flex-shrink: 0;
    padding: 0 16px 16px;
}

.mac-input-wrapper {
    max-width: var(--input-max-width);
    margin: 0 auto;
}

/* File Preview (above input) */
.mac-file-preview {
    display: flex;
    gap: 8px;
    padding: 8px 0;
    overflow-x: auto;
    flex-wrap: wrap;
    max-width: var(--input-max-width);
    margin: 0 auto;
}

.mac-preview-item,
.mac-file-preview-item {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 6px 10px;
    background: var(--code-bg);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
    font-size: 13px;
    color: var(--text-primary);
    max-width: 200px;
    position: relative;
}

.mac-preview-item .mac-file-preview-name,
.mac-file-preview-item .mac-file-preview-name {
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    flex: 1;
}

.mac-preview-remove,
.mac-file-preview-remove {
    background: transparent;
    border: none;
    color: var(--text-secondary);
    cursor: pointer;
    font-size: 14px;
    padding: 0 2px;
    line-height: 1;
    flex-shrink: 0;
    display: flex;
    align-items: center;
    transition: color var(--transition-fast);
}

.mac-preview-remove:hover,
.mac-file-preview-remove:hover {
    color: var(--text-primary);
}

.mac-file-preview-thumb {
    width: 48px;
    height: 48px;
    border-radius: 6px;
    object-fit: cover;
}

/* Input Container - ChatGPT style: rounded, NO border, solid bg */
.mac-input-container {
    display: flex;
    align-items: flex-end;
    background: var(--input-container-bg);
    border: none;
    border-radius: var(--radius-xl);
    padding: 8px 12px;
    transition: box-shadow var(--transition-fast);
    position: relative;
    max-width: var(--input-max-width);
    margin: 0 auto;
}

.mac-input-container:focus-within {
    box-shadow: 0 0 0 2px rgba(16, 163, 127, 0.2);
}

/* Attach Button (paperclip) */
.mac-attach-btn {
    display: flex;
    align-items: center;
    justify-content: center;
    background: transparent;
    border: none;
    color: var(--text-tertiary);
    cursor: pointer;
    padding: 6px;
    border-radius: 50%;
    font-size: 18px;
    transition: color var(--transition-fast), background var(--transition-fast);
    flex-shrink: 0;
    line-height: 1;
    margin-bottom: 2px;
}

.mac-attach-btn:hover {
    color: var(--text-primary);
    background: rgba(0, 0, 0, 0.06);
}

/* Textarea */
.mac-input-textarea {
    flex: 1;
    background: transparent;
    border: none;
    outline: none;
    color: var(--text-primary);
    font-size: 16px;
    font-family: inherit;
    line-height: 1.5;
    resize: none;
    min-height: 24px;
    max-height: 200px;
    padding: 4px 8px;
    overflow-y: auto;
}

.mac-input-textarea::placeholder {
    color: var(--text-tertiary);
}

/* Send Button - black circle with white arrow when active, gray when disabled */
.mac-send-btn {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 32px;
    height: 32px;
    background: #d9d9de;
    border: none;
    border-radius: 50%;
    color: #fff;
    cursor: not-allowed;
    font-size: 16px;
    flex-shrink: 0;
    transition: background var(--transition-fast), opacity var(--transition-fast);
    line-height: 1;
    margin-bottom: 0;
}

.mac-send-btn:disabled {
    background: #d9d9de;
    color: #fff;
    cursor: not-allowed;
    opacity: 1;
}

.mac-send-btn.active,
.mac-send-btn:not(:disabled) {
    background: #0d0d0d;
    color: #fff;
    cursor: pointer;
    opacity: 1;
}

.mac-send-btn.active:hover,
.mac-send-btn:not(:disabled):hover {
    background: #2b2b2b;
}

/* Stop Button (during generation) */
.mac-stop-btn {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 32px;
    height: 32px;
    background: #0d0d0d;
    border: none;
    border-radius: 50%;
    color: #fff;
    cursor: pointer;
    font-size: 14px;
    flex-shrink: 0;
    transition: background var(--transition-fast);
}

.mac-stop-btn:hover {
    background: #2b2b2b;
}

/* Disclaimer */
.mac-input-disclaimer {
    text-align: center;
    font-size: 12px;
    color: var(--text-tertiary);
    margin-top: 8px;
    padding: 0 4px;
    max-width: var(--input-max-width);
    margin-left: auto;
    margin-right: auto;
}

/* --------------------------------------------------------------------------
   11. Mobile Overlay
   -------------------------------------------------------------------------- */
.mac-overlay {
    display: none;
    position: fixed;
    inset: 0;
    background: var(--overlay-bg);
    z-index: 50;
    opacity: 0;
    pointer-events: none;
    transition: opacity var(--transition-normal);
}

.mac-overlay.active {
    opacity: 1;
    pointer-events: auto;
}

/* --------------------------------------------------------------------------
   12. Modal (Prompts / Usage History / Settings)
   -------------------------------------------------------------------------- */
.mac-modal-overlay {
    position: fixed;
    inset: 0;
    background: var(--overlay-bg);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 200;
    opacity: 0;
    visibility: hidden;
    transition: opacity var(--transition-fast), visibility var(--transition-fast);
}

.mac-modal-overlay.visible {
    opacity: 1;
    visibility: visible;
}

.mac-modal {
    position: fixed;
    inset: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 200;
    background: var(--overlay-bg);
}

.mac-modal[style*="display: none"],
.mac-modal[style*="display:none"] {
    display: none !important;
}

.mac-modal-content {
    background: var(--modal-bg);
    border-radius: var(--radius-lg);
    border: 1px solid var(--border-color);
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.12), 0 2px 8px rgba(0, 0, 0, 0.06);
    width: 90%;
    max-width: 600px;
    max-height: 80vh;
    display: flex;
    flex-direction: column;
    overflow: hidden;
    animation: macModalIn 0.2s ease;
}

@keyframes macModalIn {
    from {
        opacity: 0;
        transform: scale(0.96) translateY(8px);
    }
    to {
        opacity: 1;
        transform: scale(1) translateY(0);
    }
}

.mac-modal-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 16px 20px;
    border-bottom: 1px solid var(--border-color);
    flex-shrink: 0;
}

.mac-modal-header h2 {
    font-size: 16px;
    font-weight: 600;
    color: var(--text-primary);
}

.mac-modal-title {
    font-size: 16px;
    font-weight: 600;
    color: var(--text-primary);
}

.mac-modal-close {
    display: flex;
    align-items: center;
    justify-content: center;
    background: transparent;
    border: none;
    color: var(--text-secondary);
    font-size: 20px;
    cursor: pointer;
    padding: 4px;
    border-radius: 4px;
    line-height: 1;
    transition: color var(--transition-fast), background var(--transition-fast);
}

.mac-modal-close:hover {
    color: var(--text-primary);
    background: rgba(0, 0, 0, 0.06);
}

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

.mac-modal-footer {
    padding: 12px 20px;
    border-top: 1px solid var(--border-color);
    display: flex;
    justify-content: flex-end;
    gap: 8px;
    flex-shrink: 0;
}

/* Buttons */
.mac-btn,
.mac-modal-btn {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 8px 16px;
    border-radius: var(--radius-sm);
    font-size: 14px;
    font-weight: 500;
    cursor: pointer;
    transition: background var(--transition-fast), opacity var(--transition-fast);
    border: none;
    font-family: inherit;
    line-height: 1.4;
}

.mac-btn-primary,
.mac-modal-btn.primary {
    background: var(--accent-green);
    color: #fff;
}

.mac-btn-primary:hover,
.mac-modal-btn.primary:hover {
    background: var(--accent-green-hover);
}

.mac-btn-secondary,
.mac-modal-btn.secondary {
    background: var(--code-bg);
    color: var(--text-primary);
    border: 1px solid var(--border-color);
}

.mac-btn-secondary:hover,
.mac-modal-btn.secondary:hover {
    background: var(--sidebar-hover);
}

/* --------------------------------------------------------------------------
   13. Usage History Table (inside modal)
   -------------------------------------------------------------------------- */
.mac-usage-table {
    width: 100%;
    border-collapse: collapse;
    font-size: 13px;
}

.mac-usage-table th,
.mac-usage-table td {
    padding: 8px 12px;
    text-align: left;
    border-bottom: 1px solid var(--border-color);
}

.mac-usage-table th {
    font-weight: 600;
    color: var(--text-secondary);
    font-size: 12px;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    background: var(--code-bg);
}

.mac-usage-table td {
    color: var(--text-primary);
}

.mac-usage-table tr:hover td {
    background: rgba(0, 0, 0, 0.02);
}

.mac-type-badge {
    display: inline-flex;
    align-items: center;
    padding: 2px 8px;
    border-radius: 9999px;
    font-size: 11px;
    font-weight: 600;
    text-transform: uppercase;
}

.mac-type-badge.gpt {
    background: #e6f7f1;
    color: #10a37f;
}

.mac-type-badge.gemini {
    background: #e8f0fe;
    color: #4285f4;
}

.mac-type-badge.claude {
    background: #fef3e2;
    color: #d97706;
}

.mac-usage-total {
    display: flex;
    justify-content: space-between;
    padding: 12px 0;
    font-weight: 600;
    border-top: 2px solid var(--border-color);
    margin-top: 8px;
    color: var(--text-primary);
}

/* --------------------------------------------------------------------------
   14. Prompt Library (inside modal)
   -------------------------------------------------------------------------- */
.mac-prompt-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
    gap: 12px;
}

.mac-prompt-card {
    padding: 14px;
    background: var(--main-bg);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: background var(--transition-fast), border-color var(--transition-fast),
                box-shadow var(--transition-fast);
}

.mac-prompt-card:hover {
    background: var(--code-bg);
    border-color: #d0d0d0;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.06);
}

.mac-prompt-name,
.mac-prompt-card-title {
    font-size: 14px;
    font-weight: 500;
    color: var(--text-primary);
    margin-bottom: 4px;
}

.mac-prompt-preview,
.mac-prompt-card-desc {
    font-size: 12px;
    color: var(--text-secondary);
    line-height: 1.4;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.mac-prompt-actions {
    display: flex;
    gap: 4px;
    margin-top: 8px;
}

.mac-prompt-actions button {
    background: transparent;
    border: 1px solid var(--border-color);
    color: var(--text-secondary);
    cursor: pointer;
    padding: 4px 8px;
    border-radius: 4px;
    font-size: 12px;
    transition: all var(--transition-fast);
    font-family: inherit;
}

.mac-prompt-actions button:hover {
    background: var(--code-bg);
    color: var(--text-primary);
}

/* --------------------------------------------------------------------------
   15. Image Options (in Image Generation Modal)
   -------------------------------------------------------------------------- */
.mac-image-options {
    display: flex;
    gap: 12px;
    margin-top: 12px;
}

.mac-image-options select,
.mac-modal-body textarea {
    width: 100%;
    padding: 10px 12px;
    background: var(--main-bg);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
    color: var(--text-primary);
    font-size: 14px;
    font-family: inherit;
    outline: none;
    transition: border-color var(--transition-fast);
}

.mac-image-options select:focus,
.mac-modal-body textarea:focus {
    border-color: var(--accent-green);
    box-shadow: 0 0 0 2px rgba(16, 163, 127, 0.15);
}

.mac-modal-body textarea {
    resize: vertical;
    min-height: 80px;
    line-height: 1.5;
}

.mac-image-cost-preview {
    margin-top: 12px;
    padding: 10px 14px;
    background: var(--credit-badge-bg);
    border-radius: var(--radius-sm);
    font-size: 13px;
    color: var(--credit-badge-text);
    font-weight: 500;
}

/* --------------------------------------------------------------------------
   16. Animations
   -------------------------------------------------------------------------- */
@keyframes macFadeIn {
    from {
        opacity: 0;
        transform: translateY(8px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* Smooth scroll indicator */
.mac-scroll-bottom-btn {
    position: absolute;
    bottom: 100px;
    left: 50%;
    transform: translateX(-50%);
    width: 36px;
    height: 36px;
    border-radius: 50%;
    background: var(--main-bg);
    border: 1px solid var(--border-color);
    color: var(--text-secondary);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 18px;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.08);
    z-index: 20;
    opacity: 0;
    visibility: hidden;
    transition: opacity var(--transition-fast), visibility var(--transition-fast);
}

.mac-scroll-bottom-btn.visible {
    opacity: 1;
    visibility: visible;
}

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

/* --------------------------------------------------------------------------
   17. Responsive (Tablet < 1024px)
   -------------------------------------------------------------------------- */
@media (max-width: 1023px) {
    .mac-sidebar {
        position: fixed;
        top: 0;
        left: 0;
        height: 100%;
        z-index: 60;
        transform: translateX(-100%);
        transition: transform var(--transition-normal);
        width: var(--sidebar-width);
        min-width: var(--sidebar-width);
    }

    .mac-sidebar.open {
        transform: translateX(0);
    }

    .mac-sidebar.collapsed {
        transform: translateX(-100%);
        width: var(--sidebar-width);
        min-width: var(--sidebar-width);
    }

    /* Overlay: hidden by default (pointer-events: none), visible only when .active */
    .mac-overlay {
        display: block;
    }

    .mac-hamburger,
    .mac-sidebar-toggle {
        display: flex;
    }

    /* Hide image/video model selectors on tablet by default — shown when gen mode active */
    .mac-image-model-selector,
    .mac-video-model-selector {
        display: none;
    }

    .mac-image-model-selector.shown,
    .mac-video-model-selector.shown {
        display: inline-flex;
    }

    /* 모바일 헤더에 이미지/영상 생성 버튼 표시 */
    .mac-header-gen-btn {
        display: flex;
    }
}

/* --------------------------------------------------------------------------
   18. Responsive (Mobile < 768px)
   -------------------------------------------------------------------------- */
@media (max-width: 767px) {
    .mac-sidebar {
        position: fixed;
        top: 0;
        left: 0;
        height: 100%;
        z-index: 60;
        transform: translateX(-100%);
        transition: transform var(--transition-normal);
        width: 80vw;
        min-width: 260px;
        max-width: 320px;
    }

    .mac-sidebar.open {
        transform: translateX(0);
    }

    .mac-sidebar.collapsed {
        transform: translateX(-100%);
    }

    .mac-overlay {
        display: block;
    }

    .mac-hamburger,
    .mac-sidebar-toggle {
        display: flex;
    }

    /* Header: compact on mobile */
    .mac-header {
        padding: 0 10px;
        gap: 6px;
    }

    .mac-header-left {
        gap: 4px;
        overflow: hidden;
        flex: 1;
        min-width: 0;
    }

    .mac-model-btn {
        font-size: 13px;
        padding: 5px 8px;
        max-width: 160px;
        overflow: hidden;
    }

    .mac-model-btn .mac-model-name {
        overflow: hidden;
        text-overflow: ellipsis;
        white-space: nowrap;
    }

    /* Hide image/video model selectors on mobile by default — shown when gen mode active */
    .mac-image-model-selector,
    .mac-video-model-selector {
        display: none;
    }

    .mac-image-model-selector.shown,
    .mac-video-model-selector.shown {
        display: inline-flex;
    }

    .mac-image-model-btn,
    .mac-video-model-btn {
        font-size: 12px;
        padding: 4px 8px;
    }

    .mac-image-model-btn .mac-model-name,
    .mac-video-model-btn .mac-model-name {
        max-width: 100px;
        overflow: hidden;
        text-overflow: ellipsis;
        white-space: nowrap;
    }

    /* Image/video model dropdowns: full-width on mobile */
    .mac-image-model-dropdown,
    .mac-video-model-dropdown {
        position: fixed;
        top: var(--header-height);
        left: 8px;
        right: 8px;
        min-width: auto;
        width: auto;
        max-height: 50vh;
        overflow-y: auto;
    }

    /* Model dropdown: full-width on mobile */
    .mac-model-dropdown {
        position: fixed;
        top: var(--header-height);
        left: 8px;
        right: 8px;
        width: auto;
        max-height: 60vh;
        overflow-y: auto;
    }

    .mac-image-gen-btn {
        display: none;
    }

    .mac-messages {
        padding: 0 8px;
    }

    .mac-messages-inner {
        padding: 12px 0 16px;
    }

    .mac-message.user .mac-message-content {
        max-width: 92%;
    }

    /* Input area: compact on mobile */
    .mac-input-area {
        padding: 0 8px 8px;
    }

    .mac-input-container {
        border-radius: var(--radius-lg);
    }

    /* Input info: wrap to fit */
    .mac-input-info {
        padding: 4px 8px 4px;
        flex-wrap: wrap;
        gap: 4px;
    }

    .mac-input-disclaimer {
        display: none; /* Hide disclaimer on mobile to save space */
    }

    .mac-image-gen-toggle,
    .mac-video-gen-toggle {
        font-size: 12px;
        padding: 4px 10px;
    }

    .mac-cost-estimate {
        font-size: 11px;
        margin-left: auto;
    }

    .mac-welcome h1,
    .mac-welcome-title {
        font-size: 22px;
    }

    /* Modal: near full-screen on mobile */
    .mac-modal-content {
        width: 95%;
        max-height: 85vh;
    }

    .mac-prompt-grid {
        grid-template-columns: 1fr;
    }

    .mac-image-options {
        flex-direction: column;
    }

    /* Credit badge compact */
    .mac-credit-badge {
        font-size: 12px;
        padding: 4px 8px;
    }

    /* User dropdown: position correctly on mobile */
    .mac-user-dropdown {
        left: 4px;
        right: 4px;
    }
}

/* --------------------------------------------------------------------------
   19. Small mobile (< 480px)
   -------------------------------------------------------------------------- */
@media (max-width: 479px) {
    .mac-credit-badge {
        font-size: 11px;
        padding: 3px 6px;
    }

    .mac-credit-badge svg {
        display: none;
    }

    .mac-message-avatar {
        width: 24px;
        height: 24px;
        font-size: 12px;
    }

    .mac-input-textarea {
        font-size: 16px; /* prevent iOS zoom */
    }

    .mac-model-dropdown {
        left: 4px;
        right: 4px;
    }

    .mac-provider-tab {
        padding: 10px 4px;
        font-size: 12px;
    }

    .mac-model-btn {
        font-size: 12px;
        max-width: 120px;
    }

    .mac-header {
        padding: 0 6px;
    }
}

/* --------------------------------------------------------------------------
   20. Print (hide everything except messages)
   -------------------------------------------------------------------------- */
@media print {
    .mac-app {
        position: static;
        height: auto;
    }

    .mac-sidebar,
    .mac-header,
    .mac-input-area,
    .mac-overlay {
        display: none !important;
    }

    .mac-messages {
        overflow: visible;
        max-width: none;
    }

    .mac-message-content {
        color: #000;
    }
}

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

/* Focus visible styles */
.mac-app *:focus-visible {
    outline: 2px solid var(--accent-green);
    outline-offset: 2px;
}

.mac-app button:focus:not(:focus-visible) {
    outline: none;
}

/* --------------------------------------------------------------------------
   22. Syntax Highlighting (light theme token colors for code blocks)
   -------------------------------------------------------------------------- */
.mac-code-block .token-keyword { color: #d73a49; }
.mac-code-block .token-string { color: #032f62; }
.mac-code-block .token-number { color: #005cc5; }
.mac-code-block .token-comment { color: #6a737d; font-style: italic; }
.mac-code-block .token-function { color: #6f42c1; }
.mac-code-block .token-class { color: #22863a; }
.mac-code-block .token-operator { color: #d73a49; }
.mac-code-block .token-punctuation { color: #24292e; }
.mac-code-block .token-property { color: #005cc5; }
.mac-code-block .token-tag { color: #22863a; }
.mac-code-block .token-attr-name { color: #6f42c1; }
.mac-code-block .token-attr-value { color: #032f62; }
.mac-code-block .token-variable { color: #e36209; }
.mac-code-block .token-type { color: #22863a; }
.mac-code-block .token-builtin { color: #22863a; }
.mac-code-block .token-regex { color: #032f62; }
.mac-code-block .token-important { color: #d73a49; font-weight: bold; }

/* --------------------------------------------------------------------------
   23. Loading / Skeleton States
   -------------------------------------------------------------------------- */
.mac-skeleton {
    background: linear-gradient(
        90deg,
        #f0f0f0 25%,
        #e0e0e0 50%,
        #f0f0f0 75%
    );
    background-size: 200% 100%;
    animation: macShimmer 1.5s infinite;
    border-radius: 4px;
}

@keyframes macShimmer {
    0% { background-position: 200% 0; }
    100% { background-position: -200% 0; }
}

.mac-skeleton-line {
    height: 14px;
    margin-bottom: 8px;
    border-radius: 4px;
}

.mac-skeleton-line:nth-child(1) { width: 85%; }
.mac-skeleton-line:nth-child(2) { width: 70%; }
.mac-skeleton-line:nth-child(3) { width: 55%; }

/* --------------------------------------------------------------------------
   24. Context Menu (right-click on conversation)
   -------------------------------------------------------------------------- */
.mac-context-menu {
    position: fixed;
    background: var(--modal-bg);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
    box-shadow: 0 4px 16px rgba(0, 0, 0, 0.1), 0 1px 4px rgba(0, 0, 0, 0.06);
    z-index: 300;
    padding: 4px;
    min-width: 160px;
}

.mac-context-menu-item {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 8px 12px;
    border-radius: 4px;
    background: transparent;
    border: none;
    color: var(--text-primary);
    font-size: 13px;
    cursor: pointer;
    width: 100%;
    text-align: left;
    font-family: inherit;
    transition: background var(--transition-fast);
}

.mac-context-menu-item:hover {
    background: rgba(0, 0, 0, 0.04);
}

.mac-context-menu-item.danger {
    color: var(--error-red);
}

.mac-context-menu-item.danger:hover {
    background: #fef2f2;
}

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

/* --------------------------------------------------------------------------
   25. Tooltip
   -------------------------------------------------------------------------- */
.mac-tooltip {
    position: relative;
}

.mac-tooltip::after {
    content: attr(data-tooltip);
    position: absolute;
    bottom: calc(100% + 6px);
    left: 50%;
    transform: translateX(-50%);
    padding: 4px 10px;
    background: #0d0d0d;
    color: #fff;
    font-size: 12px;
    border-radius: 4px;
    white-space: nowrap;
    pointer-events: none;
    opacity: 0;
    transition: opacity var(--transition-fast);
    z-index: 400;
}

.mac-tooltip:hover::after {
    opacity: 1;
}

/* --------------------------------------------------------------------------
   26. Rename Input (inline editing conversation title)
   -------------------------------------------------------------------------- */
.mac-rename-input {
    width: 100%;
    background: var(--main-bg);
    border: 1px solid var(--border-color);
    border-radius: 4px;
    color: var(--text-primary);
    font-size: 14px;
    padding: 4px 8px;
    font-family: inherit;
    outline: none;
}

.mac-rename-input:focus {
    border-color: var(--accent-green);
    box-shadow: 0 0 0 2px rgba(16, 163, 127, 0.15);
}

/* --------------------------------------------------------------------------
   27. Error / Notice States
   -------------------------------------------------------------------------- */
.mac-error-message {
    display: flex;
    align-items: flex-start;
    gap: 10px;
    padding: 12px 16px;
    background: #fef2f2;
    border: 1px solid #fecaca;
    border-radius: var(--radius-md);
    margin: 8px 0;
    font-size: 14px;
    color: #b91c1c;
}

.mac-error-icon {
    flex-shrink: 0;
    font-size: 16px;
    margin-top: 1px;
    color: var(--error-red);
}

.mac-retry-btn {
    display: inline-flex;
    align-items: center;
    gap: 4px;
    padding: 4px 12px;
    background: var(--main-bg);
    border: 1px solid var(--border-color);
    border-radius: 9999px;
    color: var(--text-primary);
    font-size: 13px;
    cursor: pointer;
    margin-top: 8px;
    transition: background var(--transition-fast);
    font-family: inherit;
}

.mac-retry-btn:hover {
    background: var(--code-bg);
}

/* --------------------------------------------------------------------------
   28. Toast Notification
   -------------------------------------------------------------------------- */
.mac-toast {
    position: fixed;
    bottom: 80px;
    left: 50%;
    transform: translateX(-50%) translateY(20px);
    padding: 10px 20px;
    background: #0d0d0d;
    border: none;
    border-radius: 9999px;
    color: #fff;
    font-size: 13px;
    z-index: 500;
    opacity: 0;
    transition: opacity var(--transition-fast), transform var(--transition-fast);
    pointer-events: none;
    white-space: nowrap;
    box-shadow: 0 4px 16px rgba(0, 0, 0, 0.15);
}

.mac-toast.visible {
    opacity: 1;
    transform: translateX(-50%) translateY(0);
}

/* --------------------------------------------------------------------------
   29. Markdown LaTeX / Math blocks
   -------------------------------------------------------------------------- */
.mac-math-block {
    overflow-x: auto;
    padding: 12px 0;
    margin: 8px 0;
}

.mac-math-inline {
    padding: 0 2px;
}

/* --------------------------------------------------------------------------
   30. Image Lightbox → moved to bottom (section: Image Lightbox)
   -------------------------------------------------------------------------- */

/* --------------------------------------------------------------------------
   31. Streaming Text Cursor
   -------------------------------------------------------------------------- */
.mac-streaming-cursor::after {
    content: '';
    display: inline-block;
    width: 7px;
    height: 18px;
    background: var(--text-primary);
    margin-left: 2px;
    vertical-align: text-bottom;
    animation: macCursorBlink 0.8s step-end infinite;
}

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

/* --------------------------------------------------------------------------
   32. Selection Color
   -------------------------------------------------------------------------- */
.mac-app ::selection {
    background: rgba(16, 163, 127, 0.2);
    color: inherit;
}

.mac-app ::-moz-selection {
    background: rgba(16, 163, 127, 0.2);
    color: inherit;
}

/* --------------------------------------------------------------------------
   33. Low Credit Warning State
   -------------------------------------------------------------------------- */
.low-credit {
    color: var(--low-credit) !important;
}

.mac-credit-amount.low-credit {
    color: var(--low-credit) !important;
    animation: macPulse 2s ease-in-out infinite;
}

@keyframes macPulse {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.6; }
}

/* --------------------------------------------------------------------------
   34. User Dropdown Menu
   -------------------------------------------------------------------------- */
.mac-user-menu-wrapper {
    position: relative;
}

.mac-user-details {
    flex: 1;
    display: flex;
    flex-direction: column;
    min-width: 0;
}

.mac-user-credit {
    font-size: 12px;
    color: var(--primary);
    font-weight: 500;
}

.mac-user-info {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 10px 12px;
    border-radius: 10px;
    cursor: pointer;
    transition: background 0.15s;
    user-select: none;
}

.mac-user-info:hover {
    background: var(--hover);
}

.mac-user-avatar {
    width: 32px;
    height: 32px;
    border-radius: 50%;
    background: var(--primary);
    color: #fff;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 14px;
    font-weight: 600;
    flex-shrink: 0;
}

.mac-user-name {
    flex: 1;
    font-size: 14px;
    font-weight: 500;
    color: var(--text-primary);
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.mac-user-info svg {
    flex-shrink: 0;
    color: var(--text-tertiary);
    transition: transform 0.2s;
}

.mac-user-info.active svg {
    transform: rotate(180deg);
}

.mac-user-dropdown {
    position: absolute;
    bottom: calc(100% + 4px);
    left: 8px;
    right: 8px;
    background: var(--modal-bg);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    box-shadow: 0 4px 24px rgba(0, 0, 0, 0.12);
    padding: 6px;
    z-index: 100;
    animation: macDropdownUp 0.15s ease-out;
}

@keyframes macDropdownUp {
    from {
        opacity: 0;
        transform: translateY(8px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.mac-user-dropdown-item {
    display: flex;
    align-items: center;
    gap: 10px;
    width: 100%;
    padding: 10px 12px;
    border-radius: 8px;
    font-size: 14px;
    color: var(--text-primary);
    text-decoration: none;
    transition: background 0.15s;
    cursor: pointer;
    background: none;
    border: none;
    font-family: inherit;
    text-align: left;
}

.mac-user-dropdown-item:hover {
    background: var(--hover);
    text-decoration: none;
    color: var(--text-primary);
}

.mac-user-dropdown-item.mac-logout {
    color: #ef4444;
}

.mac-user-dropdown-item.mac-logout:hover {
    background: rgba(239, 68, 68, 0.08);
    color: #ef4444;
}

.mac-user-dropdown-divider {
    height: 1px;
    background: var(--border);
    margin: 4px 0;
}

/* --------------------------------------------------------------------------
   34b. Image Gen Toggle (input area checkbox)
   -------------------------------------------------------------------------- */
.mac-image-gen-toggle {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    cursor: pointer;
    font-size: 13px;
    font-weight: 500;
    color: #8b5cf6;
    padding: 6px 14px;
    border-radius: 16px;
    transition: all 0.2s;
    user-select: none;
    border: 1.5px solid rgba(139, 92, 246, 0.3);
    background: rgba(139, 92, 246, 0.06);
}

.mac-image-gen-toggle:hover {
    color: #7c3aed;
    background: rgba(139, 92, 246, 0.12);
    border-color: rgba(139, 92, 246, 0.4);
}

.mac-image-gen-toggle.active {
    color: #fff;
    background: #8b5cf6;
    border-color: #8b5cf6;
    box-shadow: 0 2px 8px rgba(139, 92, 246, 0.3);
}

.mac-image-gen-toggle input[type="checkbox"] {
    display: none;
}

.mac-image-gen-toggle svg {
    width: 16px;
    height: 16px;
    flex-shrink: 0;
}

/* --------------------------------------------------------------------------
   34c. Image Model Selector (header)
   -------------------------------------------------------------------------- */
.mac-image-model-selector {
    position: relative;
}

.mac-image-model-btn {
    display: flex;
    align-items: center;
    gap: 6px;
    padding: 5px 10px;
    background: transparent;
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
    color: var(--text-secondary);
    font-size: 13px;
    font-weight: 500;
    cursor: pointer;
    transition: all var(--transition-fast);
    line-height: 1.4;
    font-family: inherit;
}

.mac-image-model-btn:hover {
    background: rgba(0, 0, 0, 0.04);
    color: var(--text-primary);
}

.mac-image-model-btn svg:first-child {
    color: #8b5cf6;
    flex-shrink: 0;
}

.mac-image-model-dropdown {
    display: none;
    position: absolute;
    top: calc(100% + 4px);
    left: 0;
    min-width: 280px;
    background: var(--modal-bg);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    box-shadow: 0 4px 24px rgba(0, 0, 0, 0.12), 0 1px 4px rgba(0, 0, 0, 0.06);
    padding: 6px;
    z-index: 1000;
}

.mac-image-model-dropdown.active {
    display: block;
}

/* --------------------------------------------------------------------------
   34d. Video Model Selector (header)
   -------------------------------------------------------------------------- */
.mac-video-model-selector {
    position: relative;
}

.mac-video-model-btn {
    display: flex;
    align-items: center;
    gap: 6px;
    padding: 5px 10px;
    background: transparent;
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
    color: var(--text-secondary);
    font-size: 13px;
    font-weight: 500;
    cursor: pointer;
    transition: all var(--transition-fast);
    line-height: 1.4;
    font-family: inherit;
}

.mac-video-model-btn:hover {
    background: rgba(0, 0, 0, 0.04);
    color: var(--text-primary);
}

.mac-video-model-btn svg:first-child {
    color: #f59e0b;
    flex-shrink: 0;
}

.mac-video-model-dropdown {
    display: none;
    position: absolute;
    top: calc(100% + 4px);
    left: 0;
    min-width: 280px;
    background: var(--modal-bg);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    box-shadow: 0 4px 24px rgba(0, 0, 0, 0.12), 0 1px 4px rgba(0, 0, 0, 0.06);
    padding: 6px;
    z-index: 1000;
}

.mac-video-model-dropdown.active {
    display: block;
}

/* --------------------------------------------------------------------------
   34e. Video Gen Toggle (input area checkbox)
   -------------------------------------------------------------------------- */
.mac-video-gen-toggle {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    cursor: pointer;
    font-size: 13px;
    font-weight: 500;
    color: #f59e0b;
    padding: 6px 14px;
    border-radius: 16px;
    transition: all 0.2s;
    user-select: none;
    border: 1.5px solid rgba(245, 158, 11, 0.3);
    background: rgba(245, 158, 11, 0.06);
}

.mac-video-gen-toggle:hover {
    color: #d97706;
    background: rgba(245, 158, 11, 0.12);
    border-color: rgba(245, 158, 11, 0.4);
}

.mac-video-gen-toggle.active {
    color: #fff;
    background: #f59e0b;
    border-color: #f59e0b;
    box-shadow: 0 2px 8px rgba(245, 158, 11, 0.3);
}

.mac-video-gen-toggle input[type="checkbox"] {
    display: none;
}

.mac-video-gen-toggle svg {
    width: 16px;
    height: 16px;
    flex-shrink: 0;
}

/* --------------------------------------------------------------------------
   35. Input Info & Cost Estimate
   -------------------------------------------------------------------------- */
.mac-input-info {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 4px 16px 8px;
    max-width: 768px;
    margin: 0 auto;
    width: 100%;
}

.mac-cost-estimate {
    font-size: 12px;
    color: var(--text-tertiary);
    font-weight: 500;
}

.mac-input-disclaimer {
    font-size: 12px;
    color: var(--text-tertiary);
}

/* (Mobile user menu & input-info adjustments moved into main mobile media queries) */

/* --------------------------------------------------------------------------
   36. Streaming Cursor
   -------------------------------------------------------------------------- */
.mac-cursor {
    display: inline;
    animation: mac-blink 0.7s step-end infinite;
    color: var(--accent-green, #10a37f);
    font-weight: 700;
}

@keyframes mac-blink {
    0%, 100% { opacity: 1; }
    50% { opacity: 0; }
}

.mac-streaming-text {
    min-height: 20px;
}

/* --------------------------------------------------------------------------
   37. Progress Bar (Image/Video Generation)
   -------------------------------------------------------------------------- */
.mac-progress-content {
    display: flex;
    flex-direction: column;
    gap: 6px;
    background: var(--msg-ai-bg, #f7f7f8);
    padding: 12px 16px;
    border-radius: 16px;
    min-width: 200px;
}

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

.mac-progress-label #mac-progress-pct {
    color: var(--accent-green, #10a37f);
    font-weight: 600;
}

.mac-progress-bar-bg {
    width: 100%;
    height: 6px;
    background: var(--border-color, #e5e5e5);
    border-radius: 3px;
    overflow: hidden;
}

.mac-progress-bar-fill {
    height: 100%;
    width: 0%;
    background: linear-gradient(90deg, #10a37f, #34d399);
    border-radius: 3px;
    transition: width 0.5s ease;
}

/* ==========================================================================
   AI Nickname Label
   ========================================================================== */
.mac-ai-name {
    font-size: 13px;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 2px;
    flex-shrink: 0;
}

.mac-ai-name.openai { color: #10a37f; }
.mac-ai-name.google { color: #ef4444; }
.mac-ai-name.anthropic { color: #d97706; }

.mac-message.assistant {
    flex-wrap: wrap;
}

.mac-message.assistant .mac-message-content {
    width: 100%;
    padding-left: 40px;
}

.mac-message.assistant .mac-message-meta {
    width: 100%;
    padding-left: 40px;
}

.mac-message.assistant .mac-message-actions {
    padding-left: 40px;
}

/* User message timestamp */
.mac-message.user .mac-message-meta {
    justify-content: flex-end;
    margin-top: 4px;
}

/* ==========================================================================
   Conversation ID in header
   ========================================================================== */
.mac-conversation-id {
    font-size: 12px;
    color: var(--text-tertiary);
    font-family: monospace;
    white-space: nowrap;
}

/* ==========================================================================
   Conversation list time
   ========================================================================== */
.mac-conv-info {
    flex: 1;
    min-width: 0;
    display: flex;
    flex-direction: column;
    gap: 2px;
}

.mac-conv-time {
    font-size: 11px;
    color: var(--text-tertiary);
}

/* ==========================================================================
   Select mode styles
   ========================================================================== */
.mac-select-btn {
    display: flex;
    align-items: center;
    justify-content: center;
    background: none;
    border: none;
    color: var(--text-secondary);
    cursor: pointer;
    padding: 6px;
    border-radius: 6px;
    transition: all 0.2s;
    flex-shrink: 0;
}

.mac-select-btn:hover {
    background: var(--sidebar-hover);
    color: var(--text-primary);
}

.mac-sidebar-header {
    display: flex;
    gap: 6px;
}

.mac-select-actions {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 8px 16px;
    background: var(--bg-secondary);
    border-bottom: 1px solid var(--border-color);
}

.mac-select-count {
    font-size: 13px;
    color: var(--text-secondary);
    flex: 1;
}

.mac-select-delete-btn {
    background: #ef4444;
    color: #fff;
    border: none;
    padding: 5px 14px;
    border-radius: 6px;
    font-size: 13px;
    cursor: pointer;
    transition: background 0.2s;
}

.mac-select-delete-btn:hover {
    background: #dc2626;
}

.mac-select-cancel-btn {
    background: none;
    border: 1px solid var(--border-color);
    color: var(--text-secondary);
    padding: 5px 14px;
    border-radius: 6px;
    font-size: 13px;
    cursor: pointer;
    transition: all 0.2s;
}

.mac-select-cancel-btn:hover {
    background: var(--sidebar-hover);
}

.mac-conversation-item.mac-selected {
    background: rgba(59, 130, 246, 0.15) !important;
    border-left: 3px solid #3b82f6;
}

.mac-select-mode .mac-conversation-item {
    cursor: pointer;
    user-select: none;
}

.mac-select-mode .mac-conv-actions {
    display: none;
}

/* ==========================================================================
   Compress button & help tooltip
   ========================================================================== */
.mac-compress-wrapper {
    display: inline-flex;
    align-items: center;
    gap: 4px;
}

.mac-compress-btn {
    display: inline-flex;
    align-items: center;
    gap: 5px;
    cursor: pointer;
    font-size: 13px;
    color: var(--text-secondary);
    padding: 4px 10px;
    border-radius: 16px;
    transition: all 0.2s;
    user-select: none;
    border: 1px solid rgba(16, 185, 129, 0.3);
    background: rgba(16, 185, 129, 0.06);
    font-family: inherit;
}

.mac-compress-btn:hover {
    color: #059669;
    background: rgba(16, 185, 129, 0.12);
    border-color: rgba(16, 185, 129, 0.4);
}

.mac-compress-btn svg {
    flex-shrink: 0;
}

.mac-compress-help {
    position: relative;
    display: inline-flex;
    align-items: center;
}

.mac-compress-help-icon {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 18px;
    height: 18px;
    border-radius: 50%;
    font-size: 11px;
    font-weight: 700;
    color: var(--text-tertiary);
    background: var(--bg-tertiary, #f0f0f0);
    cursor: help;
    transition: all 0.2s;
}

.mac-compress-help-icon:hover {
    color: var(--text-primary);
    background: var(--bg-secondary);
}

.mac-compress-tooltip {
    display: none;
    position: absolute;
    bottom: calc(100% + 8px);
    left: 50%;
    transform: translateX(-50%);
    padding: 10px 14px;
    background: var(--bg-primary);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    box-shadow: 0 4px 16px rgba(0, 0, 0, 0.12);
    font-size: 12px;
    line-height: 1.6;
    color: var(--text-secondary);
    width: 260px;
    z-index: 100;
    white-space: normal;
}

.mac-compress-help:hover .mac-compress-tooltip {
    display: block;
}

/* Compression divider */
.mac-compress-divider {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 16px 0;
    max-width: 768px;
    margin: 0 auto;
}

.mac-compress-line {
    flex: 1;
    height: 1px;
    background: rgba(16, 185, 129, 0.3);
}

.mac-compress-label {
    font-size: 11px;
    color: #10b981;
    white-space: nowrap;
    font-weight: 500;
}

/* Compressed (dimmed) messages */
.mac-message.mac-compressed {
    opacity: 0.4;
    transition: opacity 0.3s;
}

.mac-message.mac-compressed:hover {
    opacity: 0.65;
}

/* ==========================================================================
   Welcome message style
   ========================================================================== */
.mac-welcome p {
    font-size: 16px;
    color: var(--text-secondary);
    margin-top: 8px;
}

#mac-welcome-name {
    color: #10a37f;
}
#mac-welcome-name.openai { color: #10a37f; }
#mac-welcome-name.google { color: #ef4444; }
#mac-welcome-name.anthropic { color: #d97706; }

/* ==========================================================================
   Welcome model selection chips
   ========================================================================== */
/* (Welcome model selection removed - uses header popups instead) */

/* ==========================================================================
   Title bar (under header)
   ========================================================================== */
.mac-title-bar {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 6px 16px;
    border-bottom: 1px solid var(--border-color);
    background: #fafafa;
    min-height: 36px;
    flex-shrink: 0;
}

.mac-title-bar-id {
    font-size: 11px;
    color: var(--text-tertiary);
    font-family: monospace;
    flex-shrink: 0;
}

.mac-title-bar-text {
    flex: 1;
    min-width: 0;
    font-size: 14px;
    font-weight: 500;
    color: var(--text-primary);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.mac-title-bar-actions {
    display: flex;
    align-items: center;
    gap: 4px;
    flex-shrink: 0;
}

.mac-title-bar-btn {
    display: flex;
    align-items: center;
    justify-content: center;
    background: none;
    border: none;
    color: var(--text-secondary);
    cursor: pointer;
    padding: 4px;
    border-radius: 6px;
    transition: all 0.15s;
}

.mac-title-bar-btn:hover {
    background: rgba(0, 0, 0, 0.06);
    color: var(--text-primary);
}

.mac-title-bar-btn.starred svg {
    fill: #f59e0b;
    stroke: #f59e0b;
}

.mac-title-bar-delete:hover {
    color: #ef4444;
}

/* Starred conversation item in sidebar */
.mac-conversation-item .mac-conv-star {
    color: #f59e0b;
    font-size: 12px;
    flex-shrink: 0;
    margin-right: 4px;
}

/* ==========================================================================
   Header new chat button
   ========================================================================== */
.mac-header-new-chat {
    display: flex;
    align-items: center;
    justify-content: center;
    background: none;
    border: 1px solid var(--border-color);
    color: var(--text-secondary);
    cursor: pointer;
    padding: 5px;
    border-radius: 8px;
    transition: all 0.2s;
}

.mac-header-new-chat:hover {
    background: var(--sidebar-hover);
    color: var(--text-primary);
}

/* ==========================================================================
   Mobile responsive additions
   ========================================================================== */
@media (max-width: 767px) {
    .mac-message.assistant .mac-message-content,
    .mac-message.assistant .mac-message-meta,
    .mac-message.assistant .mac-message-actions {
        padding-left: 0;
    }

    .mac-ai-name {
        font-size: 12px;
    }

    .mac-compress-wrapper {
        display: none;
    }

    .mac-compress-wrapper[style*="display: inline-flex"],
    .mac-compress-wrapper:not([style*="display: none"]) {
        display: inline-flex;
    }

    .mac-compress-btn {
        font-size: 12px;
        padding: 3px 8px;
    }

    .mac-compress-tooltip {
        width: 200px;
        left: 0;
        transform: none;
    }

    .mac-select-actions {
        padding: 6px 12px;
    }
}

/* ==========================================================================
   Drag handle for starred conversations
   ========================================================================== */
.mac-drag-handle {
    display: none;
    align-items: center;
    justify-content: center;
    font-size: 16px;
    color: var(--text-secondary);
    cursor: grab;
    padding: 0 2px 0 0;
    opacity: 0.4;
    flex-shrink: 0;
    user-select: none;
    line-height: 1;
}

.mac-star-group .mac-conversation-item:hover .mac-drag-handle {
    display: flex;
}

.mac-conversation-item.mac-dragging {
    opacity: 0.4;
    background: var(--sidebar-hover);
}

.mac-conversation-item.mac-drag-above {
    border-top: 2px solid #3b82f6;
}

.mac-conversation-item.mac-drag-below {
    border-bottom: 2px solid #3b82f6;
}

.mac-star-list {
    display: flex;
    flex-direction: column;
}

/* ==========================================================================
   Image Lightbox
   ========================================================================== */
.mac-lightbox {
    position: fixed;
    top: 0;
    left: 0;
    width: 100vw;
    height: 100vh;
    z-index: 100000;
    background: rgba(0, 0, 0, 0.85);
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: zoom-out;
    opacity: 0;
    transition: opacity 0.2s ease;
}

.mac-lightbox.show {
    opacity: 1;
}

.mac-lightbox img {
    max-width: 90vw;
    max-height: 90vh;
    border-radius: 8px;
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.4);
    object-fit: contain;
    cursor: default;
    transform: scale(0.9);
    transition: transform 0.2s ease;
}

.mac-lightbox.show img {
    transform: scale(1);
}

.mac-lightbox-close {
    position: absolute;
    top: 16px;
    right: 16px;
    width: 36px;
    height: 36px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(255, 255, 255, 0.15);
    border: none;
    border-radius: 50%;
    color: #fff;
    font-size: 20px;
    cursor: pointer;
    transition: background 0.15s;
}

.mac-lightbox-close:hover {
    background: rgba(255, 255, 255, 0.3);
}

.mac-lightbox-download {
    position: absolute;
    bottom: 20px;
    right: 20px;
    display: flex;
    align-items: center;
    gap: 6px;
    padding: 8px 16px;
    background: rgba(255, 255, 255, 0.15);
    border: none;
    border-radius: 8px;
    color: #fff;
    font-size: 14px;
    cursor: pointer;
    text-decoration: none;
    transition: background 0.15s;
}

.mac-lightbox-download:hover {
    background: rgba(255, 255, 255, 0.3);
}

/* ==========================================================================
   Reply Preview Bar
   ========================================================================== */
.mac-reply-preview {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 8px 12px;
    background: var(--code-bg);
    border-left: 3px solid var(--accent-main);
    border-radius: var(--radius-sm);
    margin: 0 12px;
    animation: fadeInUp 0.15s ease;
}

.mac-reply-preview-body {
    flex: 1;
    min-width: 0;
    display: flex;
    flex-direction: column;
    gap: 2px;
}

.mac-reply-nickname {
    font-size: 12px;
    font-weight: 600;
    color: var(--accent-main);
}

.mac-reply-text {
    font-size: 13px;
    color: var(--text-secondary);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.mac-reply-cancel {
    flex-shrink: 0;
    width: 24px;
    height: 24px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: none;
    border: none;
    color: var(--text-tertiary);
    font-size: 16px;
    cursor: pointer;
    border-radius: 50%;
    transition: background var(--transition-fast), color var(--transition-fast);
}

.mac-reply-cancel:hover {
    background: var(--hover-bg);
    color: var(--text-primary);
}

/* Action buttons in message (copy, reply) */
.mac-msg-copy,
.mac-msg-reply {
    background: none;
    border: none;
    padding: 6px;
    cursor: pointer;
    color: var(--text-tertiary);
    border-radius: 6px;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: color var(--transition-fast), background var(--transition-fast);
}

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

.mac-msg-reply:hover {
    color: var(--accent-main);
    background: var(--hover-bg);
}

@keyframes fadeInUp {
    from { opacity: 0; transform: translateY(4px); }
    to   { opacity: 1; transform: translateY(0); }
}

/* --------------------------------------------------------------------------
   Share UI
   -------------------------------------------------------------------------- */

/* Sidebar share section */
.mac-share-label {
    display: flex;
    align-items: center;
    gap: 4px;
}
.mac-share-label svg {
    opacity: 0.6;
}

.mac-conv-owner {
    background: var(--sidebar-hover);
    color: var(--text-secondary);
    font-size: 11px;
    padding: 1px 6px;
    border-radius: 4px;
    margin-right: 4px;
}

/* Title bar share button */
.mac-title-bar-share {
    color: var(--text-secondary);
}
.mac-title-bar-share:hover {
    color: var(--accent-green);
}

/* Share modal */
.mac-share-modal-content {
    max-width: 440px;
}

.mac-share-link-section {
    margin-bottom: 20px;
}
.mac-share-link-section label,
.mac-share-users-section label {
    display: block;
    font-size: 13px;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 8px;
}

.mac-share-link-row {
    display: flex;
    gap: 8px;
}
.mac-share-link-row input {
    flex: 1;
    padding: 8px 12px;
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
    font-size: 13px;
    color: var(--text-primary);
    background: var(--input-container-bg);
    outline: none;
}
.mac-share-link-row input:focus {
    border-color: var(--accent-green);
}
.mac-share-link-row .mac-btn {
    flex-shrink: 0;
    padding: 8px 16px;
    font-size: 13px;
}

/* Shared users list */
.mac-share-users-list {
    max-height: 240px;
    overflow-y: auto;
}

.mac-share-user-item {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 10px 12px;
    border-bottom: 1px solid var(--border-color);
}
.mac-share-user-item:last-child {
    border-bottom: none;
}

.mac-share-user-info {
    display: flex;
    align-items: center;
    gap: 8px;
}
.mac-share-user-name {
    font-size: 14px;
    color: var(--text-primary);
    font-weight: 500;
}

.mac-share-role-badge {
    font-size: 11px;
    padding: 2px 8px;
    border-radius: 10px;
    font-weight: 600;
}
.mac-share-role-badge.owner {
    background: #f0fdf4;
    color: #16a34a;
}
.mac-share-role-badge.member {
    background: #eff6ff;
    color: #3b82f6;
}

.mac-share-kick-btn {
    background: none;
    border: 1px solid #fecaca;
    color: #dc2626;
    font-size: 12px;
    padding: 4px 12px;
    border-radius: var(--radius-sm);
    cursor: pointer;
    font-family: inherit;
    transition: all var(--transition-fast);
}
.mac-share-kick-btn:hover {
    background: #fef2f2;
}

/* Share Join Overlay */
.mac-share-join-overlay {
    position: fixed;
    top: 0; left: 0;
    width: 100vw; height: 100vh;
    background: rgba(0,0,0,0.5);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 999999;
    animation: fadeIn 0.2s ease;
}
@keyframes fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}
.mac-share-join-card {
    background: #fff;
    border-radius: 16px;
    padding: 36px 32px 28px;
    text-align: center;
    max-width: 360px;
    width: 90%;
    box-shadow: 0 20px 60px rgba(0,0,0,0.2);
}
.mac-share-join-icon {
    margin-bottom: 16px;
}
.mac-share-join-card h2 {
    font-size: 20px;
    font-weight: 700;
    color: #0d0d0d;
    margin-bottom: 8px;
}
.mac-share-join-card p {
    font-size: 14px;
    color: #6e6e80;
    line-height: 1.6;
    margin-bottom: 24px;
}
.mac-share-join-actions {
    display: flex;
    gap: 10px;
    justify-content: center;
}
.mac-share-join-actions .mac-btn {
    flex: 1;
    padding: 10px 20px;
    font-size: 15px;
    border-radius: 8px;
}

/* Typing Indicator */
.mac-typing-indicator {
    padding: 4px 16px;
    font-size: 12px;
    color: var(--text-tertiary);
    display: flex;
    align-items: center;
    gap: 6px;
    max-width: var(--input-max-width);
    margin: 0 auto;
}
.mac-typing-dots {
    display: inline-flex;
    gap: 3px;
    align-items: center;
}
.mac-typing-dots span {
    width: 4px;
    height: 4px;
    border-radius: 50%;
    background: var(--text-tertiary);
    animation: typingBounce 1.2s infinite;
}
.mac-typing-dots span:nth-child(2) { animation-delay: 0.2s; }
.mac-typing-dots span:nth-child(3) { animation-delay: 0.4s; }
@keyframes typingBounce {
    0%, 60%, 100% { opacity: 0.3; transform: translateY(0); }
    30% { opacity: 1; transform: translateY(-3px); }
}

/* ==================== PROFILE MODAL ==================== */
.mac-profile-modal-content {
    max-width: 420px;
}

.mac-profile-section {
    padding: 16px 0;
}
.mac-profile-section + .mac-profile-section {
    border-top: 1px solid var(--border-color);
}

.mac-profile-header-section {
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
    gap: 4px;
}

.mac-profile-avatar-large {
    width: 80px;
    height: 80px;
    border-radius: 50%;
    background: var(--accent-green);
    color: #fff;
    font-size: 32px;
    font-weight: 600;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 8px;
}

.mac-profile-name-wrap {
    display: flex;
    align-items: center;
    gap: 6px;
}

.mac-profile-display-name {
    font-size: 20px;
    font-weight: 600;
    color: var(--text-primary);
}

.mac-profile-name-input {
    font-size: 18px;
    font-weight: 600;
    text-align: center;
    border: 1px solid var(--accent-green);
    border-radius: 8px;
    padding: 4px 10px;
    outline: none;
    background: var(--input-bg, #fff);
    color: var(--text-primary);
    width: 200px;
}

.mac-profile-edit-btn {
    background: none;
    border: none;
    cursor: pointer;
    padding: 4px;
    border-radius: 6px;
    color: var(--text-secondary);
    display: flex;
    align-items: center;
}
.mac-profile-edit-btn:hover {
    background: var(--hover-bg);
    color: var(--text-primary);
}

.mac-profile-email {
    font-size: 14px;
    color: var(--text-secondary);
}
.mac-profile-date {
    font-size: 13px;
    color: var(--text-tertiary, #999);
}

.mac-profile-section-title {
    font-size: 13px;
    font-weight: 600;
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 0.5px;
    margin: 0 0 12px 0;
}

.mac-profile-stats {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 12px;
}

.mac-profile-stat {
    display: flex;
    flex-direction: column;
    align-items: center;
    padding: 12px 8px;
    background: var(--hover-bg, #f5f5f5);
    border-radius: 12px;
}

.mac-profile-stat-value {
    font-size: 20px;
    font-weight: 700;
    color: var(--text-primary);
}

.mac-profile-stat-label {
    font-size: 12px;
    color: var(--text-secondary);
    margin-top: 2px;
}

/* 추천인 섹션 */
.mac-referral-row {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 10px;
}
.mac-referral-row label {
    font-size: 13px;
    color: var(--text-secondary);
    flex-shrink: 0;
    min-width: 70px;
}

.mac-referral-copy-wrap {
    display: flex;
    align-items: center;
    gap: 6px;
    flex: 1;
    justify-content: flex-end;
    min-width: 0;
}

.mac-referral-code {
    font-size: 15px;
    font-weight: 600;
    color: var(--accent-green);
    letter-spacing: 1px;
    background: var(--hover-bg, #f5f5f5);
    padding: 4px 10px;
    border-radius: 6px;
}

.mac-referral-link {
    font-size: 12px;
    color: var(--text-secondary);
    background: var(--hover-bg, #f5f5f5);
    padding: 4px 8px;
    border-radius: 6px;
    max-width: 220px;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.mac-copy-btn {
    background: none;
    border: 1px solid var(--border-color);
    border-radius: 6px;
    padding: 5px 6px;
    cursor: pointer;
    color: var(--text-secondary);
    display: flex;
    align-items: center;
    flex-shrink: 0;
    transition: background 0.15s;
}
.mac-copy-btn:hover {
    background: var(--hover-bg);
    color: var(--text-primary);
}

.mac-referral-qr {
    text-align: center;
    margin: 16px 0 8px;
}
.mac-referral-qr img {
    border-radius: 12px;
    border: 1px solid var(--border-color);
}

.mac-referral-count {
    text-align: center;
    font-size: 14px;
    color: var(--text-secondary);
}
.mac-referral-count strong {
    color: var(--accent-green);
}

/* ==================== MOBILE HEADER GEN BUTTONS ==================== */
.mac-header-gen-btn {
    display: none; /* 데스크탑에서 숨김 */
    align-items: center;
    justify-content: center;
    width: 34px;
    height: 34px;
    border: 1.5px solid var(--border-color);
    border-radius: 8px;
    background: transparent;
    color: var(--text-secondary);
    cursor: pointer;
    flex-shrink: 0;
    transition: all 0.15s;
}
.mac-header-gen-btn:hover {
    background: var(--hover-bg);
}
.mac-header-image-gen.active {
    background: #8b5cf6;
    border-color: #8b5cf6;
    color: #fff;
}
.mac-header-video-gen.active {
    background: #f59e0b;
    border-color: #f59e0b;
    color: #fff;
}