/* ====================================================
   Universal Scrollbar Hiding (Keeps scrolling enabled)
   ==================================================== */
* {
    scrollbar-width: none !important;
    -ms-overflow-style: none !important;
}
*::-webkit-scrollbar {
    display: none !important;
    width: 0 !important;
    height: 0 !important;
}

@import url('https://fonts.googleapis.com/css2?family=Sarabun:ital,wght@0,300;0,400;0,500;0,600;0,700;0,800;1,300;1,400;1,500;1,600;1,700;1,800&family=Inter:wght@400;500;600;700&display=swap');

/* Modern Blockly Dark & Light Theme Workspace Background & Widgets */
#blocklyDiv,




















/* Mutator Bubble Gear Icon Popup Styling */





















#workspaceView {
    padding-top: var(--topbar-height);
    height: 100vh;
    box-sizing: border-box;
    overflow: hidden;
}

.workspace-container {
    display: flex;
    height: 100%;
    width: 100%;
    overflow: hidden;
    position: relative;
}

.workspace-sidebar {
    width: 250px;
    background: var(--bg-surface);
    border-right: 1px solid var(--border-subtle);
    padding: 16px 14px;
    display: flex;
    flex-direction: column;
    gap: 6px;
    flex-shrink: 0;
    overflow-y: auto;
    overflow-x: hidden;
    transition: width 0.28s cubic-bezier(0.4, 0, 0.2, 1),
                min-width 0.28s cubic-bezier(0.4, 0, 0.2, 1),
                padding 0.28s cubic-bezier(0.4, 0, 0.2, 1),
                opacity 0.2s ease,
                border-color 0.25s ease;
    will-change: width, min-width, padding, opacity;
}

.nav-pills {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.nav-pill {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 12px 16px;
    background: transparent;
    border: none;
    border-radius: var(--radius-md);
    color: var(--text-secondary);
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
    text-align: left;
    width: 100%;
}

.nav-pill svg {
    width: 20px;
    height: 20px;
}

.nav-pill:hover {
    background: var(--bg-surface-elevated);
    color: var(--accent-purple);
}

:root[data-theme="light"] .nav-pill:hover,
html[data-theme="light"] .nav-pill:hover {
    background: var(--accent-purple-subtle);
    color: var(--accent-purple);
}

.nav-pill.active {
    background: var(--card-purple-bg);
    color: #d8b4fe;
    border: 1.5px solid var(--card-purple-border);
    font-weight: 700;
}

.nav-pill.active svg {
    stroke: #d8b4fe;
}

:root[data-theme="light"] .nav-pill.active,
html[data-theme="light"] .nav-pill.active {
    background: var(--accent-purple-subtle);
    color: #581c87;
    border: 1.5px solid var(--border-purple);
    font-weight: 700;
}

:root[data-theme="light"] .nav-pill.active svg,
html[data-theme="light"] .nav-pill.active svg {
    stroke: #581c87;
}

/* Desktop IoT Submenu */
.desktop-iot-submenu {
    display: flex;
    flex-direction: column;
    padding-left: 28px;
    margin-top: 4px;
    gap: 4px;
}

.desktop-iot-tab {
    display: flex;
    align-items: center;
    text-align: left;
    padding: 8px 14px;
    font-size: 0.88rem;
    border-radius: var(--radius-md);
    background: transparent;
    border: 1px solid transparent;
    color: var(--text-secondary);
    font-weight: 500;
    cursor: pointer;
    transition: var(--transition);
    width: 100%;
}

.desktop-iot-tab:hover {
    background: var(--bg-surface-elevated);
    color: var(--text-primary);
}

.desktop-iot-tab.active {
    background: rgba(124, 58, 237, 0.25) !important;
    border: 1px solid rgba(139, 92, 246, 0.35) !important;
    color: #d8b4fe !important;
    font-weight: 700 !important;
}

:root[data-theme="light"] .desktop-iot-tab:hover,
html[data-theme="light"] .desktop-iot-tab:hover {
    background: var(--bg-surface-accent);
    color: var(--text-primary);
}

:root[data-theme="light"] .desktop-iot-tab.active,
html[data-theme="light"] .desktop-iot-tab.active {
    background: var(--accent-purple-subtle, #ede9fe) !important;
    border: 1px solid var(--border-purple, #8b5cf6) !important;
    color: #581c87 !important;
    font-weight: 700 !important;
}

.workspace-content {
    flex: 1;
    padding: 24px 32px;
    overflow-y: auto;
    overflow-x: hidden;
    display: flex;
    flex-direction: column;
    min-height: 0;
    height: 100%;
    box-sizing: border-box;
}

.tab-content {
    display: none;
    animation: fadeIn 0.3s ease;
}

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

#tab-iot.active {
    display: flex !important;
    flex-direction: column;
    flex: 1 0 auto;
    min-height: 100%;
    height: auto;
    width: 100%;
    box-sizing: border-box;
    overflow: visible;
}

#tab-chat.active {
    display: flex !important;
    flex-direction: column;
    flex: 1;
    min-height: 0;
    height: 100%;
    overflow: hidden;
    box-sizing: border-box;
}

.content-header {
    margin-bottom: 32px;
}

.content-header h2 {
    font-size: 2.0rem;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 8px;
}

.content-header .subtitle {
    font-size: 1.18rem;
    color: var(--text-secondary);
}

/* Settings Container & Grid (Max 1200px Centered) */
#tab-settings {
    width: 100%;
    max-width: 1200px;
    margin-left: auto !important;
    margin-right: auto !important;
    box-sizing: border-box;
}

#settingsMainGrid,
#settingsGeneralManage,
#settingsIotManage,
#settingsChatManage,
#settingsUserManage {
    width: 100%;
    max-width: 1200px;
    margin-left: auto !important;
    margin-right: auto !important;
    box-sizing: border-box;
}

.settings-grid {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 20px;
    margin: 20px auto 0 auto;
    width: 100%;
    max-width: 1200px;
    min-width: 0;
    box-sizing: border-box;
}

@media (max-width: 860px) {
    .settings-grid {
        grid-template-columns: 1fr !important;
    }
}

.settings-card {
    background: var(--bg-surface);
    border: 1px solid var(--border-default);
    border-radius: var(--radius-lg);
    padding: 24px;
    display: flex;
    flex-direction: row;
    align-items: flex-start;
    gap: 16px;
    cursor: pointer;
    transition: var(--transition);
    box-sizing: border-box;
    box-shadow: var(--shadow-sm);
    min-width: 0;
    max-width: 100%;
}

.settings-card:hover {
    transform: translateY(-4px);
    border-color: var(--border-green);
    box-shadow: var(--shadow-md);
}

:root[data-theme="light"] .settings-card:hover,
html[data-theme="light"] .settings-card:hover {
    border-color: var(--border-purple);
    box-shadow: var(--shadow-md);
}

.settings-section-card {
    cursor: default !important;
    display: flex !important;
    flex-direction: column !important;
    align-items: stretch !important;
    gap: 16px !important;
    margin-bottom: 0 !important;
    height: fit-content;
    min-width: 0 !important;
    max-width: 100% !important;
    overflow: hidden;
}

.settings-section-card:hover {
    transform: none !important;
    border-color: var(--border-default) !important;
    box-shadow: var(--shadow-sm) !important;
}

.settings-icon {
    width: 48px;
    height: 48px;
    flex-shrink: 0;
    border-radius: var(--radius-md);
    background: var(--card-purple-bg);
    color: var(--badge-text);
    border: 1px solid var(--card-purple-border);
    display: flex;
    align-items: center;
    justify-content: center;
}

:root[data-theme="light"] .settings-icon,
html[data-theme="light"] .settings-icon {
    background: var(--accent-purple-subtle);
    color: var(--accent-purple);
    border: 1px solid var(--border-purple);
}

.settings-icon svg {
    width: 24px;
    height: 24px;
}

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

.settings-info h3 {
    font-size: 1.28rem;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 8px;
    word-break: break-word;
}

.settings-info p {
    font-size: 1.08rem;
    color: var(--text-secondary);
    line-height: 1.5;
    word-break: break-word;
}

/* Sidebar Toggle Button in Topbar */
.sidebar-toggle-btn {
    display: none;
    align-items: center;
    justify-content: center;
    width: 38px;
    height: 38px;
    border-radius: var(--radius-sm);
    background: transparent;
    border: none;
    color: var(--text-primary);
    cursor: pointer;
    transition: var(--transition);
    margin-right: 6px;
    flex-shrink: 0;
}

.sidebar-toggle-btn:hover {
    background: var(--bg-surface-elevated, rgba(255, 255, 255, 0.08));
    color: var(--accent-purple, #c084fc);
}

.sidebar-toggle-btn.collapsed {
    color: var(--text-secondary);
    background: rgba(255, 255, 255, 0.04);
}

.sidebar-toggle-btn svg {
    width: 20px;
    height: 20px;
}

/* Workspace Sidebar Header for Desktop & Tablet */
.workspace-sidebar-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 4px 10px 4px;
    margin-bottom: 6px;
    border-bottom: 1px solid var(--border-subtle, rgba(255, 255, 255, 0.08));
}

.sidebar-header-brand {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 0.8rem;
    font-weight: 700;
    color: var(--text-secondary, #94a3b8);
    letter-spacing: 0.5px;
    text-transform: uppercase;
    user-select: none;
}

.sidebar-header-brand svg {
    color: var(--accent-purple, #a855f7);
}

.sidebar-collapse-btn {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 28px;
    height: 28px;
    border-radius: var(--radius-sm, 6px);
    background: transparent;
    border: 1px solid transparent;
    color: var(--text-secondary, #94a3b8);
    cursor: pointer;
    transition: all 0.2s ease;
}

.sidebar-collapse-btn:hover {
    background: var(--bg-surface-elevated, rgba(255, 255, 255, 0.08));
    border-color: var(--border-default, rgba(255, 255, 255, 0.15));
    color: var(--accent-purple, #c084fc);
}

/* Floating Expand Button when Left Menu is Collapsed */
.sidebar-expand-float-btn {
    display: none;
    position: absolute;
    top: 10px;
    left: 12px;
    z-index: 95;
    align-items: center;
    gap: 6px;
    background: var(--bg-surface-elevated, #161b22);
    border: 1px solid var(--border-default, rgba(255, 255, 255, 0.15));
    color: var(--text-secondary, #94a3b8);
    padding: 6px 12px;
    border-radius: 8px;
    cursor: pointer;
    font-size: 0.82rem;
    font-weight: 600;
    box-shadow: 0 4px 14px rgba(0, 0, 0, 0.35);
    transition: all 0.2s cubic-bezier(0.4, 0, 0.2, 1);
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);
}

.sidebar-expand-float-btn:hover {
    background: var(--bg-surface-elevated, #21262d);
    border-color: var(--accent-purple, #a855f7);
    color: var(--accent-purple, #c084fc);
    transform: translateX(2px);
}

.sidebar-expand-float-btn svg {
    color: var(--accent-purple, #a855f7);
    flex-shrink: 0;
}

/* Desktop & Tablet Sidebar Collapse State (min-width: 601px) */
@media (min-width: 601px) {
    .workspace-container.sidebar-collapsed .workspace-sidebar {
        width: 0 !important;
        min-width: 0 !important;
        max-width: 0 !important;
        padding-left: 0 !important;
        padding-right: 0 !important;
        margin: 0 !important;
        border-right: 1px solid transparent !important;
        overflow: hidden !important;
        opacity: 0 !important;
        pointer-events: none !important;
        visibility: hidden !important;
    }

    .workspace-container.sidebar-collapsed .sidebar-expand-float-btn {
        display: inline-flex;
        animation: fadeIn 0.2s ease forwards;
    }
}

/* Premium Mobile UI (Bottom Navigation) */
@media (max-width: 600px) {
    .workspace-container {
        flex-direction: column;
        height: 100vh;
        overflow: hidden;
    }
    
    .workspace-content {
        padding: 16px 12px;
        padding-bottom: 180px !important;
        overflow-y: auto !important;
        overflow-x: hidden !important;
        -webkit-overflow-scrolling: touch;
        flex: 1;
        height: 100%;
        min-height: 0;
        box-sizing: border-box;
    }
    
    .workspace-sidebar {
        position: fixed;
        bottom: 0;
        left: 0;
        width: 100%;
        height: auto;
        border-right: none;
        border-top: 1px solid var(--border-subtle);
        background: var(--navbar-bg);
        backdrop-filter: blur(12px);
        -webkit-backdrop-filter: blur(12px);
        padding: 8px 12px;
        padding-bottom: max(8px, env(safe-area-inset-bottom)); /* iPhone support */
        z-index: 100;
        display: flex;
        justify-content: center;
        transform: none !important;
        box-shadow: none !important;
    }
    
    .nav-pills {
        flex-direction: row;
        justify-content: space-around;
        width: 100%;
        max-width: 500px;
        gap: 0;
    }
    
    .nav-pill {
        flex-direction: column;
        gap: 2px;
        padding: 5px 4px;
        border-radius: var(--radius-sm);
        width: auto;
        min-width: 60px;
        text-align: center;
        font-size: 0.7rem;
        justify-content: center;
        white-space: nowrap;
    }
    
    .nav-pill svg {
        width: 22px;
        height: 22px;
        margin: 0 auto;
    }
    
    .nav-pill:hover {
        background: transparent;
    }
    
    .nav-pill.active {
        background: rgba(168, 85, 247, 0.18) !important;
        color: #d8b4fe !important;
        border: 1.5px solid rgba(168, 85, 247, 0.45) !important;
        font-weight: 700 !important;
    }
    .nav-pill.active svg {
        stroke: #d8b4fe !important;
    }

    :root[data-theme="light"] .nav-pill.active,
    html[data-theme="light"] .nav-pill.active {
        background: var(--accent-purple-subtle, #ede9fe) !important;
        color: #581c87 !important;
        border: 1.5px solid var(--border-purple, #8b5cf6) !important;
        font-weight: 700 !important;
    }
    :root[data-theme="light"] .nav-pill.active svg,
    html[data-theme="light"] .nav-pill.active svg {
        stroke: #581c87 !important;
    }

    .desktop-only-pill {
        display: none !important;
    }

    /* Mobile Bottom Navigation Order: Chat (1) -> Menu (2) -> Settings (3) */
    .nav-pill[data-target="tab-chat"],
    #navPillChat {
        order: 1 !important;
    }

    .mobile-menu-toggle {
        display: flex !important;
        order: 2 !important;
    }

    .nav-pill[data-target="tab-settings"],
    #navPillSettings {
        order: 3 !important;
    }
    
    .mobile-iot-topmenu {
        display: none !important;
    }

    .workspace-sidebar-header,
    .sidebar-collapse-btn,
    .sidebar-expand-float-btn,
    .sidebar-toggle-btn {
        display: none !important;
    }
}

/* Mobile Menu Toggle Button */
.mobile-menu-toggle {
    display: none; /* Hidden by default on desktop */
    color: var(--text-muted, #8b949e);
    background: transparent;
    border: 1.5px solid transparent;
    border-radius: var(--radius-sm);
    font-weight: 500;
    transition: all 0.25s ease;
}

.mobile-menu-toggle svg {
    stroke: currentColor;
}

.mobile-menu-toggle:hover {
    color: var(--text-primary, #f0f6fc);
    background: rgba(255, 255, 255, 0.05);
}

/* Active & Open state for Mobile Menu Toggle button */
.mobile-menu-toggle.active,
.mobile-menu-toggle.open {
    color: #d8b4fe !important;
    background: rgba(168, 85, 247, 0.18) !important;
    border: 1.5px solid rgba(168, 85, 247, 0.45) !important;
    font-weight: 700 !important;
}

.mobile-menu-toggle.active svg,
.mobile-menu-toggle.open svg {
    stroke: #d8b4fe !important;
}

.mobile-menu-toggle.active:hover,
.mobile-menu-toggle.open:hover {
    color: #f3e8ff !important;
    background: rgba(168, 85, 247, 0.3) !important;
    border-color: #c084fc !important;
}

:root[data-theme="light"] .mobile-menu-toggle,
html[data-theme="light"] .mobile-menu-toggle {
    color: var(--text-secondary, #64748b);
    background: transparent;
    border: 1.5px solid transparent;
    font-weight: 500;
}

:root[data-theme="light"] .mobile-menu-toggle svg,
html[data-theme="light"] .mobile-menu-toggle svg {
    stroke: currentColor;
}

:root[data-theme="light"] .mobile-menu-toggle:hover {
    color: var(--text-primary, #0f172a);
    background: rgba(0, 0, 0, 0.04);
}

:root[data-theme="light"] .mobile-menu-toggle.active,
:root[data-theme="light"] .mobile-menu-toggle.open,
html[data-theme="light"] .mobile-menu-toggle.active,
html[data-theme="light"] .mobile-menu-toggle.open {
    color: #581c87 !important;
    background: var(--accent-purple-subtle, #ede9fe) !important;
    border: 1.5px solid var(--border-purple, #8b5cf6) !important;
    font-weight: 700 !important;
}

:root[data-theme="light"] .mobile-menu-toggle.active svg,
:root[data-theme="light"] .mobile-menu-toggle.open svg,
html[data-theme="light"] .mobile-menu-toggle.active svg,
html[data-theme="light"] .mobile-menu-toggle.open svg {
    stroke: #581c87 !important;
}

.mobile-menu-toggle.open .menu-dots {
    opacity: 0;
    transform: scale(0.5);
}

.mobile-menu-toggle.open .menu-cross {
    opacity: 1;
    transform: scale(1);
}

/* Mobile App Menu Overlay */
.mobile-app-menu {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    width: 100%;
    height: 100%;
    height: 100dvh;
    background: rgba(13, 17, 23, 0.30);
    backdrop-filter: blur(12px) saturate(160%);
    -webkit-backdrop-filter: blur(12px) saturate(160%);
    z-index: 90;
    display: flex;
    align-items: flex-end;
    justify-content: center;
    padding: 20px;
    padding-bottom: max(96px, calc(86px + env(safe-area-inset-bottom, 0px)));
    box-sizing: border-box;
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.25s ease;
}

:root[data-theme="light"] .mobile-app-menu,
html[data-theme="light"] .mobile-app-menu {
    background: rgba(255, 255, 255, 0.30);
}

.mobile-app-menu.open {
    opacity: 1;
    pointer-events: auto;
}

.app-menu-grid {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    align-items: center;
    gap: 16px 14px;
    width: 100%;
    max-width: 320px;
    padding: 0;
    transform: translateY(16px);
    transition: transform 0.25s cubic-bezier(0.2, 0.8, 0.2, 1);
}

.mobile-app-menu.open .app-menu-grid {
    transform: translateY(0);
}

.app-icon-wrapper {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 3px; /* Reduced margin between icon and text */
    cursor: pointer;
    width: 78px;
    flex-shrink: 0;
}

.app-icon {
    width: 56px;
    height: 56px;
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-secondary, #94a3b8);
    background: rgba(255, 255, 255, 0.05);
    border: 1.5px solid rgba(255, 255, 255, 0.12);
    box-shadow: var(--shadow-sm);
    transition: transform 0.2s, background 0.2s, border-color 0.2s, box-shadow 0.2s, color 0.2s;
}

.app-icon svg {
    width: 25px;
    height: 25px;
    stroke: currentColor;
}

.app-icon i {
    font-size: 22px;
    line-height: 1;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    color: inherit;
}

:root[data-theme="light"] .app-icon,
html[data-theme="light"] .app-icon {
    background: #ffffff;
    color: #64748b;
    border: 1.5px solid #cbd5e1;
    box-shadow: 0 1px 3px rgba(0,0,0,0.06);
}

.app-icon:active,
.app-icon-wrapper:hover .app-icon {
    background: rgba(168, 85, 247, 0.12);
    border-color: rgba(168, 85, 247, 0.35);
    color: #d8b4fe;
    transform: scale(0.95);
}

:root[data-theme="light"] .app-icon:active,
:root[data-theme="light"] .app-icon-wrapper:hover .app-icon,
html[data-theme="light"] .app-icon:active,
html[data-theme="light"] .app-icon-wrapper:hover .app-icon {
    background: #f5f3ff;
    border-color: #a78bfa;
    color: #6b21a8;
}

/* Active Highlight for Submenu Items (ONLY the open page) */
.app-icon-wrapper.active .app-icon {
    background: rgba(168, 85, 247, 0.22) !important;
    border: 1.5px solid #c084fc !important;
    color: #f3e8ff !important;
    box-shadow: 0 0 12px rgba(168, 85, 247, 0.35) !important;
}

.app-icon-wrapper.active .app-icon svg {
    stroke: #f3e8ff !important;
}

.app-icon-wrapper.active .app-icon i {
    color: #f3e8ff !important;
}

:root[data-theme="light"] .app-icon-wrapper.active .app-icon,
html[data-theme="light"] .app-icon-wrapper.active .app-icon {
    background: var(--accent-purple-subtle, #ede9fe) !important;
    border: 1.5px solid var(--border-purple, #8b5cf6) !important;
    color: #581c87 !important;
    box-shadow: 0 2px 8px rgba(139, 92, 246, 0.25) !important;
}

:root[data-theme="light"] .app-icon-wrapper.active .app-icon svg,
html[data-theme="light"] .app-icon-wrapper.active .app-icon svg {
    stroke: #581c87 !important;
}

:root[data-theme="light"] .app-icon-wrapper.active .app-icon i,
html[data-theme="light"] .app-icon-wrapper.active .app-icon i {
    color: #581c87 !important;
}

.app-icon-wrapper span {
    color: var(--text-secondary, #94a3b8);
    font-size: 0.8rem;
    font-weight: 500;
    text-align: center;
    transition: color 0.2s, font-weight 0.2s;
    margin-top: 0;
}

:root[data-theme="light"] .app-icon-wrapper span,
html[data-theme="light"] .app-icon-wrapper span {
    color: #475569;
}

.app-icon-wrapper.active span {
    color: #d8b4fe !important;
    font-weight: 700 !important;
}

:root[data-theme="light"] .app-icon-wrapper.active span,
html[data-theme="light"] .app-icon-wrapper.active span {
    color: #581c87 !important;
    font-weight: 700 !important;
}

    .workspace-content {
        overflow-x: hidden;
    }
}

/* Chat UI Styles */
.chat-container {
    background: var(--bg-surface);
    border-radius: var(--radius-lg);
    border: 1px solid var(--border-default);
    overflow: hidden;
    position: relative;
    padding: 16px 20px;
    display: flex;
    flex-direction: column;
    flex: 1;
    min-height: 0;
    height: 100%;
    box-sizing: border-box;
    box-shadow: var(--shadow-sm);
}

.chat-messages {
    flex: 1;
    min-height: 0;
    overflow-y: auto;
    overflow-x: hidden;
    display: flex;
    flex-direction: column;
    gap: 4px;          /* tighter base gap; named groups still have 12px via margin */
    padding-right: 8px; /* For scrollbar */
    padding-bottom: 8px;
    margin-bottom: 0;
}

/* Normal (non-compact) bubble wrappers get top margin to separate groups */
.chat-bubble-wrapper:not(.compact) {
    margin-top: 10px;
}

/* Compact = same sender+minute as above → minimal top margin */
.chat-bubble-wrapper.compact {
    margin-top: 2px;
}

/* Scrollbar styling for chat messages */


.chat-bubble-wrapper {
    display: flex;
    flex-direction: column;
    max-width: 100%;
}

.chat-bubble-wrapper.sent {
    align-self: flex-end;
    align-items: flex-end;
}

.chat-bubble-wrapper.received {
    align-self: flex-start;
    align-items: flex-start;
}

.chat-sender-name {
    font-size: 0.8rem;
    color: var(--text-secondary);
    margin-bottom: 4px;
    margin-left: 4px;
    margin-right: 4px;
    font-weight: 600;
    display: inline-flex;
    align-items: center;
    gap: 4px;
}

.chat-bubble {
    padding: 12px 16px;
    border-radius: var(--radius-md);
    font-size: 0.95rem;
    line-height: 1.4;
    word-break: break-word;
    position: relative;
}

/* Outgoing (Sent) Message Bubbles & Dynamic Corner Curvature */
.chat-bubble-wrapper.sent .chat-bubble {
    background: linear-gradient(135deg, #238636, #2ea043);
    color: #ffffff;
    box-shadow: 0 2px 8px var(--accent-green-glow);
}

:root[data-theme="light"] .chat-bubble-wrapper.sent .chat-bubble,
html[data-theme="light"] .chat-bubble-wrapper.sent .chat-bubble {
    background: linear-gradient(135deg, #059669, #047857);
    color: #ffffff;
    box-shadow: 0 2px 8px var(--accent-green-glow);
}

.chat-bubble-wrapper.sent.msg-pos-single .chat-bubble {
    border-radius: 16px 16px 16px 16px;
}
.chat-bubble-wrapper.sent.msg-pos-top .chat-bubble {
    border-radius: 16px 16px 4px 16px;
    margin-bottom: 2px;
}
.chat-bubble-wrapper.sent.msg-pos-middle .chat-bubble {
    border-radius: 16px 4px 4px 16px;
    margin-top: 2px;
    margin-bottom: 2px;
}
.chat-bubble-wrapper.sent.msg-pos-bottom .chat-bubble {
    border-radius: 16px 4px 16px 16px;
    margin-top: 2px;
    margin-bottom: 8px;
}

/* Incoming (Received) Message Bubbles & Dynamic Corner Curvature */
.chat-bubble-wrapper.received .chat-bubble {
    background: var(--bg-surface-elevated);
    border: 1px solid var(--border-default);
    color: var(--text-primary);
}

:root[data-theme="light"] .chat-bubble-wrapper.received .chat-bubble,
html[data-theme="light"] .chat-bubble-wrapper.received .chat-bubble {
    background: var(--bg-surface-accent);
    border: 1px solid var(--border-default);
    color: var(--text-primary);
}

.chat-bubble-wrapper.received.msg-pos-single .chat-bubble {
    border-radius: 16px 16px 16px 16px;
}
.chat-bubble-wrapper.received.msg-pos-top .chat-bubble {
    border-radius: 16px 16px 16px 4px;
    margin-bottom: 2px;
}
.chat-bubble-wrapper.received.msg-pos-middle .chat-bubble {
    border-radius: 4px 16px 16px 4px;
    margin-top: 2px;
    margin-bottom: 2px;
}
.chat-bubble-wrapper.received.msg-pos-bottom .chat-bubble {
    border-radius: 4px 16px 16px 16px;
    margin-top: 2px;
    margin-bottom: 8px;
}

.chat-time-inline {
    font-size: 0.75rem;
    color: var(--text-muted);
    margin-left: 1em;
    opacity: 0.8;
}

.chat-input-area {
    display: flex;
    align-items: center;
    gap: 10px;
    background: var(--bg-canvas);
    padding: 6px 8px 6px 14px;
    border-radius: var(--radius-full);
    border: 1px solid var(--border-default);
    flex-shrink: 0;
    position: relative;
    box-sizing: border-box;
    transition: var(--transition);
    margin-top: 8px;
}

:root[data-theme="light"] .chat-input-area,
html[data-theme="light"] .chat-input-area {
    background: #ffffff;
    border-color: var(--border-default);
}

.chat-input-area:focus-within {
    border-color: var(--accent-purple);
    box-shadow: 0 0 0 3px var(--accent-purple-glow);
}

.chat-input-area input {
    flex: 1;
    min-width: 0;
    background: transparent;
    border: none;
    outline: none;
    color: var(--text-primary);
    font-size: 0.95rem;
    padding: 8px 8px;
    align-self: stretch;
    cursor: text;
}

/* Override form-input class styles inside chat bar */
.chat-input-area input.form-input,
.chat-input-area input.form-input:focus {
    background: transparent !important;
    border: none !important;
    outline: none !important;
    border-radius: 0;
    padding: 8px;
    box-shadow: none !important;
}

.chat-send-btn {
    border-radius: 50% !important;
    width: 40px !important;
    height: 40px !important;
    padding: 0 !important;
    display: flex !important;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    background: var(--accent-green) !important;
    color: #ffffff !important;
    transition: var(--transition);
}

.chat-send-btn:hover:not(:disabled) {
    background: var(--accent-green-hover) !important;
    transform: scale(1.05);
}

.chat-send-btn:disabled {
    opacity: 0.5;
    cursor: not-allowed;
    background: var(--border-default) !important;
}

/* Chat Image Styles */
.chat-attach-btn {
    background: transparent;
    border: none;
    color: var(--text-secondary);
    cursor: pointer;
    border-radius: 50%;
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    transition: var(--transition);
}
.chat-attach-btn:hover {
    background: var(--bg-surface-elevated);
    color: var(--text-primary);
}
:root[data-theme="light"] .chat-attach-btn:hover,
html[data-theme="light"] .chat-attach-btn:hover {
    background: var(--bg-surface-accent);
}
.chat-attach-btn:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

.chat-image-preview {
    position: absolute;
    bottom: calc(100% + 12px);
    left: 24px;
    background: var(--bg-surface-elevated);
    border: 1px solid var(--border-default);
    border-radius: var(--radius-md);
    padding: 8px;
    box-shadow: var(--shadow-md);
    z-index: 10;
    display: flex;
    align-items: flex-start;
}
.chat-image-preview img {
    max-width: 120px;
    max-height: 120px;
    border-radius: var(--radius-sm);
    object-fit: cover;
}
.chat-image-preview button {
    position: absolute;
    top: -8px;
    right: -8px;
    background: #ef4444;
    color: white;
    border: none;
    border-radius: 50%;
    width: 24px;
    height: 24px;
    cursor: pointer;
    font-size: 14px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: bold;
    box-shadow: 0 2px 4px rgba(0,0,0,0.3);
}

.chat-bubble-image {
    max-width: 240px;
    max-height: 300px;
    border-radius: var(--radius-md);
    object-fit: contain;
    cursor: pointer;
    border: 1px solid var(--border-default);
    display: block;
    margin-bottom: 4px;
    background: var(--bg-surface);
}
@media (max-width: 600px) {
    .chat-bubble-image {
        max-width: 180px;
    }
}

.chat-image-skeleton {
    width: 200px;
    height: 150px;
    border-radius: var(--radius-md);
    background: linear-gradient(90deg, var(--border-default) 25%, var(--bg-surface-accent) 50%, var(--border-default) 75%);
    background-size: 200% 100%;
    animation: loadingSkeleton 1.5s infinite;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-secondary);
    font-size: 0.8rem;
}
@keyframes loadingSkeleton {
    0% { background-position: 200% 0; }
    100% { background-position: -200% 0; }
}

/* Fullscreen Image Modal */
.chat-image-fullscreen {
    position: fixed;
    top: 0;
    left: 0;
    width: 100vw;
    height: 100vh;
    background: rgba(0,0,0,0.85);
    z-index: 9999;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 20px;
}
.chat-image-modal-content {
    max-width: 90vw;
    max-height: 90vh;
    object-fit: contain;
    border-radius: 8px;
    box-shadow: 0 8px 32px rgba(0,0,0,0.3);
}
.chat-image-close {
    position: absolute;
    top: 20px;
    right: 30px;
    color: white;
    font-size: 40px;
    font-weight: bold;
    cursor: pointer;
    text-shadow: 0 2px 4px rgba(0,0,0,0.5);
}

@media (max-width: 600px) {
    .chat-container {
        padding: 10px 10px;
        border-radius: 12px;
    }
    .chat-input-area {
        padding: 4px 6px 4px 10px;
        gap: 6px;
        margin-top: 6px;
    }
    .chat-send-btn {
        width: 36px !important;
        height: 36px !important;
    }
    .chat-bubble {
        padding: 8px 12px;
        font-size: 0.9rem;
    }
}

/* Mobile Responsive Compact Spacing for Settings & Workspace */
@media (max-width: 768px) {
    .workspace-content {
        padding: 12px 14px 180px 14px !important;
        overflow-y: auto !important;
        -webkit-overflow-scrolling: touch !important;
    }
    #tab-settings, #tab-settings.active, #settingsIotManage, #settingsGeneralManage, #settingsChatManage, #settingsUserManage {
        padding-bottom: 120px !important;
    }
    .content-header {
        margin-bottom: 12px !important;
    }
    .content-header h2 {
        font-size: 1.25rem !important;
        margin-bottom: 2px !important;
    }
    .content-header .subtitle {
        font-size: 0.82rem !important;
    }
    .settings-grid {
        gap: 10px !important;
        margin-top: 10px !important;
    }
    .settings-card {
        padding: 12px 14px !important;
        gap: 12px !important;
        border-radius: 10px !important;
    }
    .settings-icon {
        width: 36px !important;
        height: 36px !important;
        border-radius: 8px !important;
    }
    .settings-icon svg {
        width: 18px !important;
        height: 18px !important;
    }
    .settings-info h3 {
        font-size: 0.98rem !important;
        margin-bottom: 2px !important;
    }
    .settings-info p {
        font-size: 0.8rem !important;
        line-height: 1.35 !important;
    }
    .settings-section-card {
        padding: 12px 14px !important;
        gap: 10px !important;
    }
    #settingsIotManage h3, #settingsGeneralManage h3 {
        font-size: 1.05rem !important;
        margin-bottom: 10px !important;
    }
    #btnBackToSettingsFromIot, #btnBackToSettingsFromGeneral {
        margin-bottom: 12px !important;
        padding: 6px 12px !important;
        font-size: 0.82rem !important;
    }
}

/* Toast Notifications (Bottom Right) */
#toastContainer {
    position: fixed;
    bottom: 20px;
    right: 20px;
    display: flex;
    flex-direction: column;
    gap: 8px;
    z-index: 999999;
    pointer-events: none;
}
.toast {
    background: #1e1e1e;
    border: 1px solid rgba(255, 255, 255, 0.15);
    padding: 10px 16px;
    border-radius: 8px;
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.5);
    font-size: 0.85rem;
    font-weight: 600;
    color: #4ade80;
    display: flex;
    align-items: center;
    gap: 8px;
    animation: toastSlideIn 0.2s ease forwards;
    pointer-events: auto;
    font-family: inherit;
}
.toast.warn, .toast.warning {
    color: #f59e0b;
    border-color: rgba(245, 158, 11, 0.35);
}
.toast.error {
    color: #ef4444;
    border-color: rgba(239, 68, 68, 0.35);
}
.toast.info {
    color: #38bdf8;
    border-color: rgba(56, 189, 248, 0.35);
}
@keyframes toastSlideIn {
    0% { opacity: 0; transform: translateX(20px); }
    100% { opacity: 1; transform: translateX(0); }
}

/* IoT Dashboard Display Area Compact Spacing - 5px top margin */
.workspace-content:has(#tab-iot.active) {
    padding-top: 0px !important;
}

#tab-iot.active {
    padding-top: 0 !important;
    margin-top: 0 !important;
}

#iotDashboardContainer {
    width: 100%;
    max-width: 1200px;
    margin: 5px auto 0 auto !important;
}

/* Action Button Switch & Navigation Styles */
.action-btn-toggle {
    transition: transform 0.12s ease, box-shadow 0.2s ease, background 0.25s ease, border-color 0.25s ease !important;
    cursor: pointer;
    box-sizing: border-box;
}
.action-btn-toggle:hover {
    filter: brightness(1.08);
}
.action-btn-toggle:active {
    transform: scale(0.96) !important;
}
.action-btn-label {
    cursor: pointer;
    user-select: none;
    display: flex;
    align-items: stretch;
    justify-content: stretch;
    width: 100%;
    height: 100%;
}