/* ===== THEME VARIABLES (scoped to NexeraAI only) ===== */
#nexera-chat-app,
#nexera-chat-app[data-theme="light"] {
    --nexera-bg: #f9fafb;
    --nexera-surface: #ffffff;
    --nexera-surface-hover: #f3f4f6;
    --nexera-surface-active: #e0ecff;
    --nexera-border: #e5e7eb;
    --nexera-border-light: #f0f0f0;
    --nexera-text: #111827;
    --nexera-text-secondary: #6b7280;
    --nexera-text-muted: #9ca3af;
    --nexera-icon-fill: #6b7280;
    --nexera-icon-hover: #111827;
    --nexera-input-bg: #fff;
    --nexera-input-border: #d1d5db;
    --nexera-card-bg: #f3f4f6;
    --nexera-card-hover: #e5e7eb;
    --nexera-dropdown-bg: #ffffff;
    --nexera-dropdown-border: #e5e7eb;
    --nexera-shadow: rgba(0, 0, 0, 0.04);
    --nexera-shadow-strong: rgba(0, 0, 0, 0.08);
    --nexera-user-bubble-bg: #1d4ed8;
    --nexera-user-bubble-text: #ffffff;
    --nexera-ai-bubble-bg: #f3f4f6;
    --nexera-ai-bubble-text: #111827;
    --nexera-ai-avatar-bg: #e0ecff;
    --nexera-user-avatar-bg: #dbeafe;
    --nexera-send-bg: #1d4ed8;
    --nexera-send-text: white;
    --nexera-popup-bg: #ffffff;
    --nexera-popup-arrow-border: #e5e7eb;
    --nexera-divider: #f0f0f0;
    --nexera-rename-focus: #3b82f6;
    --nexera-chat-input-shadow: 0 2px 12px rgba(0, 0, 0, 0.08);
    --nexera-transition-speed: 0.2s;
}

    #nexera-chat-app[data-theme="dark"] {
        --nexera-bg: #0f172a;
        --nexera-surface: #1e293b;
        --nexera-surface-hover: #273548;
        --nexera-surface-active: #1e3a5f;
        --nexera-border: #334155;
        --nexera-border-light: #334155;
        --nexera-text: #f1f5f9;
        --nexera-text-secondary: #94a3b8;
        --nexera-text-muted: #64748b;
        --nexera-icon-fill: #94a3b8;
        --nexera-icon-hover: #f1f5f9;
        --nexera-input-bg: #273548;
        --nexera-input-border: #475569;
        --nexera-card-bg: #273548;
        --nexera-card-hover: #334155;
        --nexera-dropdown-bg: #1e293b;
        --nexera-dropdown-border: #334155;
        --nexera-shadow: rgba(0, 0, 0, 0.3);
        --nexera-shadow-strong: rgba(0, 0, 0, 0.4);
        --nexera-user-bubble-bg: #2563eb;
        --nexera-user-bubble-text: #f1f5f9;
        --nexera-ai-bubble-bg: #273548;
        --nexera-ai-bubble-text: #f1f5f9;
        --nexera-ai-avatar-bg: #1e3a5f;
        --nexera-user-avatar-bg: #1e3a5f;
        --nexera-send-bg: #2563eb;
        --nexera-send-text: #ffffff;
        --nexera-popup-bg: #1e293b;
        --nexera-popup-arrow-border: #334155;
        --nexera-divider: #334155;
        --nexera-rename-focus: #3b82f6;
        --nexera-chat-input-shadow: 0 2px 12px rgba(0, 0, 0, 0.3);
        --nexera-transition-speed: 0.2s;
    }

#nexera-chat-app {
    background-color: var(--nexera-bg);
    color: var(--nexera-text);
    min-height: 100vh;
    width: 100%;
    font-family: 'Segoe UI', -apple-system, BlinkMacSystemFont, sans-serif;
}

#menu-toggle {
    display: none;
}

/* Sidebar */
#sidebar {
    width: 260px;
    height: 100vh;
    position: fixed;
    top: 0;
    left: 0;
    background: var(--nexera-surface);
    padding: 15px;
    padding-top: 15px;
    border-right: 1px solid var(--nexera-border);
    display: flex;
    flex-direction: column;
}

#menu-toggle:checked ~ #sidebar {
    margin-left: -260px;
}

/* Navbar */
.top-navbar {
    margin: 0px 5px 0px 5px;
    height: 60px;
    position: fixed;
    top: 0;
    left: 260px;
    right: 0;
    background: var(--nexera-surface);
    border-bottom: 1px solid var(--nexera-border);
    box-shadow: 0 1px 3px var(--nexera-shadow);
    z-index: 1000;
}

#menu-toggle:checked ~ .top-navbar {
    left: 0;
}

/* Content */
#content {
    margin-left: 260px;
    padding: 20px;
    height: calc(100vh - 60px);
    display: flex;
    justify-content: center;
}

#menu-toggle:checked ~ #content {
    margin-left: 0;
}

/* Sidebar items */
.new-chat-btn {
    background: var(--nexera-card-bg);
    border-radius: 8px;
    padding: 10px;
    cursor: pointer;
}

.chat-item {
    padding: 6px 8px;
    border-radius: 8px;
    cursor: pointer;
    display: flex;
    align-items: center;
    transition: background var(--nexera-transition-speed) ease;
}

    .chat-item:hover {
        background: var(--nexera-surface-hover);
    }

/* USER SECTION */
.user-section {
    margin-top: auto;
    position: relative;
    border-top: 1px solid var(--nexera-divider);
    padding-top: 10px;
}

.user-info {
    display: flex;
    align-items: center;
    gap: 10px;
    cursor: pointer;
    border-radius: 8px;
    padding: 4px;
    transition: background var(--nexera-transition-speed) ease;
}

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

/* Initials Avatar */
.user-icon {
    width: 60px;
    height: 35px;
    color: rgb(255, 255, 255);
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 600;
    border-radius: 50%;
}

/* Dropdown */
.user-dropdown {
    position: absolute;
    bottom: 50px;
    left: 0;
    width: 100%;
    background: var(--nexera-dropdown-bg);
    border: 1px solid var(--nexera-border);
    border-radius: 12px;
    display: none;
    box-shadow: 0 8px 24px var(--nexera-shadow-strong);
    z-index: 1100;
}

.user-section:hover .user-dropdown {
    display: block;
}

/* Collapsed sidebar: popup appears to the right of the icon */
.user-dropdown.user-dropdown-collapsed {
    left: 70px;
    bottom: 0;
    width: 220px;
}

.dropdown-section {
    padding: 5px 0;
}

.dropdown-divider {
    margin: 5px 0;
    border-top: 1px solid var(--nexera-divider);
}

.user-detail {
    padding: 10px;
}

.user-name-bold {
    font-weight: 600;
}

.user-email {
    font-size: 13px;
    color: var(--nexera-text-muted);
}

.user-item {
    padding: 10px;
    cursor: pointer;
    border-radius: 6px;
    margin: 0 4px;
    transition: background var(--nexera-transition-speed) ease;
}

    .user-item:hover {
        background: var(--nexera-surface-hover);
    }

/* Chat */
.chat-wrapper {
    width: 100%;
}

/* Icons */
.nexera-icon {
    padding: 5px;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 6px;
    transition: background var(--nexera-transition-speed) ease;
}

    .nexera-icon:hover {
        background: var(--nexera-surface-hover);
    }

/* Send button */
.nexera-send {
    background: var(--nexera-send-bg);
    color: var(--nexera-send-text);
    border-radius: 50%;
    padding: 6px 10px;
    cursor: pointer;
    transition: transform 0.15s ease, opacity 0.15s ease, background var(--nexera-transition-speed) ease;
}

    .nexera-send:hover {
        opacity: 0.9;
        transform: scale(1.05);
    }

    .nexera-send:active {
        transform: scale(0.95);
    }

    /* Disabled send button */
    .nexera-send.disabled {
        opacity: 0.4;
        pointer-events: none;
        cursor: not-allowed;
    }

#sidebar {
    box-shadow: 1px 0 8px var(--nexera-shadow);
    border-right: none;
}

.nexus-header-title {
    display: -webkit-box;
    display: -webkit-flex;
    display: -ms-flexbox;
    display: flex;
    -webkit-flex-direction: column;
    -ms-flex-direction: column;
    flex-direction: column;
    -webkit-align-items: center;
    -webkit-box-align: center;
    -ms-flex-align: center;
    align-items: center;
}

.hamburger-btn {
    background: transparent;
    border: none;
    font-size: 18px;
    cursor: pointer;
    padding: 5px;
    border-radius: 6px;
    transition: background var(--nexera-transition-speed) ease;
}

    /* Remove focus outline (optional) */
    .hamburger-btn:focus {
        outline: none;
    }

    /* Hover effect (optional nice UX) */
    .hamburger-btn:hover {
        background: var(--nexera-surface-hover);
    }

/* Sidebar shrink */
#sidebar.collapsed {
    width: 70px !important;
}

/* Navbar shift */
.top-navbar.collapsed {
    left: 70px !important;
}

/* Content shift */
#content.collapsed {
    margin-left: 70px !important;
}

/* Smooth */
#sidebar,
.top-navbar,
#content {
    transition: all 0.3s ease;
}

.chat-header-row {
    display: flex;
    align-items: center;
    gap: 6px;
    padding: 10px;
    margin-top: 10px;
    border-radius: 8px;
    cursor: pointer;
    color: var(--nexera-text-secondary);
    font-size: 12px;
    font-weight: 600;
    text-transform: none;
    letter-spacing: 0.5px;
    transition: background var(--nexera-transition-speed) ease;
}

    .chat-header-row:hover {
        background: var(--nexera-surface-hover);
    }

    /* Arrow */
    .nexera-arrow {
        margin-left: 5px;
        display: inline-block;
        transition: transform 0.2s ease;
    }

        /* Rotate when open */
        .nexera-arrow.rotate {
            transform: rotate(90deg);
        }

.chat-container {
    height: calc(100vh - 60px);
    display: flex;
    flex-direction: column;
}

/* CENTER MODE */
.chat-empty {
    justify-content: center;
    align-items: center;
}

.chat-empty .chat-box-wrapper {
    align-self: center;
    margin-top: 0;
    margin-bottom: 0;
}

/* BOTTOM MODE */
.chat-started {
    justify-content: flex-start;
    align-items: stretch;
    padding-bottom: 20px;
}

/* Input box */
.chat-box {
    width: 100%;
    border: 1px solid var(--nexera-border);
    background: var(--nexera-surface);
    border-radius: 24px;
    padding: 8px 12px;
    display: flex;
    flex-direction: column;
    flex-shrink: 0;
    box-shadow: var(--nexera-chat-input-shadow);
    transition: border-color var(--nexera-transition-speed) ease, box-shadow var(--nexera-transition-speed) ease;
}

    .chat-box:focus-within {
        border-color: var(--nexera-rename-focus);
        box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.12), var(--nexera-chat-input-shadow);
    }

    /* Input */
    .chat-box input {
        flex: 1;
        border: none;
        outline: none;
        background: transparent;
        color: var(--nexera-text);
        font-size: 15px;
        padding: 6px 4px;
        min-height: 28px;
    }

        .chat-box input::placeholder {
            color: var(--nexera-text-muted);
        }

.chat-textarea {
    flex: 1;
    border: none;
    outline: none;
    background: transparent;
    color: var(--nexera-text);
    font-size: 15px;
    font-family: inherit;
    padding: 6px 4px;
    resize: none;
    min-height: 28px;
    max-height: 150px;
    overflow-y: auto;
    line-height: 1.5;
}

    .chat-textarea::placeholder {
        color: var(--nexera-text-muted);
    }

    /* Center text */
    .center-text {
        margin-bottom: 24px;
        font-size: 24px;
        font-weight: 700;
        color: var(--nexera-text);
        letter-spacing: -0.3px;
    }

.fluent-icon {
    fill: var(--nexera-icon-fill) !important;
    width: 20px;
    height: 20px;
    transition: fill var(--nexera-transition-speed) ease;
}

/* Hover effect (optional) */
.fluent-icon:hover {
    color: var(--nexera-icon-hover);
}
.sidebar-header {
    padding: 0px 10px 0px 10px;
}
.more-menu-dropdown {
    position: absolute;
    right: 0;
    top: 45px;
    width: 180px;
    background: var(--nexera-dropdown-bg);
    border-radius: 10px;
    border: 1px solid var(--nexera-dropdown-border);
    box-shadow: 0 6px 20px var(--nexera-shadow-strong);
    z-index: 1000;
}

/* ===== RIGHT SIDEBAR ===== */
#right-sidebar {
    width: 280px;
    height: 100vh;
    position: fixed;
    top: 0;
    right: 0;
    background: var(--nexera-surface);
    color: var(--nexera-text);
    padding: 15px;
    display: flex;
    flex-direction: column;
    overflow-y: auto;
    box-shadow: -1px 0 8px var(--nexera-shadow);
    transition: all 0.3s ease;
    z-index: 999;
}

    #right-sidebar.collapsed {
        width: 70px;
        padding: 15px 8px;
        overflow: visible;
        align-items: center !important;
    }

    /* Icons */
    .nexera-icon {
        padding: 5px;
        cursor: pointer;
        display: flex;
        align-items: center;
        justify-content: center;
        border-radius: 6px;
        transition: background var(--nexera-transition-speed) ease;
    }

        .nexera-icon:hover {
            background: var(--nexera-surface-hover);
        }

    /* Send button */
    .nexera-send {
        background: var(--nexera-send-bg);
        color: var(--nexera-send-text);
        border-radius: 50%;
        padding: 6px 10px;
        cursor: pointer;
        transition: transform 0.15s ease, opacity 0.15s ease, background var(--nexera-transition-speed) ease;
    }

        .nexera-send:hover {
            opacity: 0.9;
            transform: scale(1.05);
        }

        .nexera-send:active {
            transform: scale(0.95);
        }

/* ===== COLLAPSED ICON STRIP ===== */
.right-collapsed-icons {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 12px;
    margin-top: 10px;
}

.right-icon-wrapper {
    position: relative;
}

.right-icon-btn {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 34px;
    height: 34px;
    border-radius: 6px;
    cursor: pointer;
    transition: background var(--nexera-transition-speed) ease;
}

.right-icon-btn:hover {
    background: var(--nexera-surface-hover);
}

/* Hover popup */
.right-icon-popup {
    display: none;
    position: absolute;
    top: 50%;
    right: 46px;
    transform: translateY(-50%);
    width: 260px;
    background: var(--nexera-popup-bg);
    border: 1px solid var(--nexera-border);
    border-radius: 12px;
    padding: 12px 14px;
    box-shadow: 0 8px 24px var(--nexera-shadow-strong);
    z-index: 1100;
}

.right-icon-popup::after {
    content: '';
    position: absolute;
    top: 50%;
    right: -6px;
    transform: translateY(-50%) rotate(45deg);
    width: 10px;
    height: 10px;
    background: var(--nexera-popup-bg);
    border-right: 1px solid var(--nexera-popup-arrow-border);
    border-top: 1px solid var(--nexera-popup-arrow-border);
}

.right-icon-wrapper:hover .right-icon-popup {
    display: block;
}

.right-popup-label {
    font-size: 13px;
    font-weight: 600;
    color: var(--nexera-text-secondary);
    margin-bottom: 6px;
}

.right-popup-title {
    font-size: 13px;
    font-weight: 600;
    margin-bottom: 2px;
}

.right-popup-desc {
    font-size: 13px;
    color: var(--nexera-text-muted);
    line-height: 1.4;
}

.right-popup-stat {
    display: flex;
    justify-content: space-between;
    font-size: 13px;
    padding: 3px 0;
}

.right-popup-stat span:last-child {
    font-weight: 600;
}

.right-popup-doc {
    font-size: 13px;
    padding: 4px 0;
    border-bottom: 1px solid var(--nexera-divider);
}

.right-popup-doc:last-child {
    border-bottom: none;
}

.right-popup-meta {
    color: var(--nexera-text-muted);
    font-size: 13px;
    margin-left: 4px;
}

.right-popup-activity {
    display: flex;
    align-items: flex-start;
    gap: 8px;
    font-size: 13px;
    padding: 4px 0;
    line-height: 1.4;
}

/* Right sidebar header */
.right-sidebar-header {
    padding: 0px 5px 10px 5px;
}

.right-sidebar-title {
    width: 100%;
    font-size: 14px;
    font-weight: 600;
    color: inherit;
}

/* Right sidebar scrollable content */
.right-sidebar-content {
    flex: 1;
    overflow-y: auto;
}

/* Sections */
.right-section {
    padding: 8px 0;
}

.right-section-header {
    display: flex;
    align-items: center;
    cursor: pointer;
    padding: 4px 0;
    margin-bottom: 8px;
    border-radius: 6px;
    transition: background var(--nexera-transition-speed) ease;
}

    .right-section-header:hover {
        background: var(--nexera-surface-hover);
    }

.right-section-label {
    font-size: 13px;
    font-weight: 600;
    color: var(--nexera-text-secondary);
}

.right-divider {
    border: none;
    border-top: 1px solid var(--nexera-divider);
    margin: 4px 0;
}

/* Active Project */
.right-project-name {
    font-size: 13px;
    font-weight: 700;
    color: inherit    ;
    margin-bottom: 4px;
}

.right-project-desc {
    font-size: 13px;
    color: var(--nexera-text-muted);
    line-height: 1.4;
}

/* Project Stats */
.right-stat-row {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 6px 0;
    font-size: 13px;
}

.right-stat-value {
    font-weight: 600;
    color: inherit;
}

.stat-green {
    color: #22c55e;
}

.stat-yellow {
    color: #facc15;
}

/* Reference Documents */
.right-doc-card {
    display: flex;
    align-items: center;
    gap: 10px;
    background: var(--nexera-card-bg);
    border-radius: 10px;
    padding: 10px 12px;
    margin-bottom: 8px;
    cursor: pointer;
    transition: background var(--nexera-transition-speed) ease;
}

.right-doc-card:hover {
    background: var(--nexera-card-hover);
}

.right-doc-icon {
    font-size: 20px;
    width: 32px;
    height: 32px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 6px;
}

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

.right-doc-name {
    font-size: 13px;
    font-weight: 600;
    color: inherit;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.right-doc-meta {
    font-size: 13px;
    color: var(--nexera-text-muted);
}

/* Recent Activity */
.right-activity-item {
    display: flex;
    align-items: flex-start;
    gap: 10px;
    padding: 8px 0;
}

.activity-dot {
    width: 10px;
    height: 10px;
    border-radius: 50%;
    margin-top: 4px;
    flex-shrink: 0;
}

.dot-green {
    background: #22c55e;
}

.dot-red {
    background: #ef4444;
}

.right-activity-info {
    flex: 1;
}

.right-activity-text {
    font-size: 13px;
    color: inherit;
    line-height: 1.4;
}

.right-activity-time {
    font-size: 13px;
    color: var(--nexera-text-muted);
    margin-top: 2px;
}

/* ===== RIGHT SIDEBAR LAYOUT ADJUSTMENTS ===== */

/* Content right margin when right sidebar is expanded */
#content.right-expanded {
    margin-right: 280px;
}

/* Content right margin when right sidebar is collapsed */
#content.right-collapsed {
    margin-right: 70px;
}

/* Navbar right offset when right sidebar is expanded */
.top-navbar.right-expanded {
    right: 280px;
}

/* Navbar right offset when right sidebar is collapsed */
.top-navbar.right-collapsed {
    right: 70px;
}

#nexera-chat-app {
    background-color: var(--nexera-bg);
    color: var(--nexera-text);
    min-height: 100vh;
    width: 100%;
    font-family: 'Segoe UI', -apple-system, BlinkMacSystemFont, sans-serif;
}

/* ===== CHAT HISTORY ===== */
.chat-history-container {
    flex: 1;
    min-height: 0;
    overflow-y: auto;
    padding: 24px 10% 16px;
    display: flex;
    flex-direction: column;
    gap: 20px;
    width: 100%;
    box-sizing: border-box;
    scroll-behavior: smooth;
}

/* Custom scrollbar for chat history */
.chat-history-container::-webkit-scrollbar {
    width: 6px;
}

.chat-history-container::-webkit-scrollbar-track {
    background: transparent;
}

.chat-history-container::-webkit-scrollbar-thumb {
    background: var(--nexera-border);
    border-radius: 3px;
}

.chat-history-container::-webkit-scrollbar-thumb:hover {
    background: var(--nexera-text-muted);
}

.chat-message-row {
    display: flex;
    align-items: flex-end;
    gap: 10px;
    max-width: 100%;
    animation: nexera-message-in 0.3s ease-out;
}

@keyframes nexera-message-in {
    from {
        opacity: 0;
        transform: translateY(8px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.chat-message-row.user-row {
    justify-content: flex-end;
}

.chat-message-row.ai-row {
    justify-content: flex-start;
}

.chat-avatar {
    width: 30px;
    height: 30px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    font-size: 14px;
}

.chat-avatar.ai-avatar {
    background: var(--nexera-ai-avatar-bg);
}

.chat-avatar.user-avatar {
    background: var(--nexera-user-avatar-bg);
}

.chat-bubble {
    max-width: 65%;
    padding: 10px 16px;
    border-radius: 18px;
    font-size: 14px;
    line-height: 1.6;
    word-wrap: break-word;
    transition: background var(--nexera-transition-speed) ease;
}

.chat-bubble.user-bubble {
    background: var(--nexera-user-bubble-bg);
    color: var(--nexera-user-bubble-text);
    border-bottom-right-radius: 6px;
}

.chat-bubble.ai-bubble {
    background: var(--nexera-ai-bubble-bg);
    color: var(--nexera-ai-bubble-text);
    border-bottom-left-radius: 6px;
}

.chat-bubble-content {
    margin-bottom: 4px;
}

.chat-bubble-time {
    font-size: 11px;
    opacity: 0.5;
    text-align: right;
    margin-top: 2px;
}

.chat-history-empty {
    flex: 1;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--nexera-text-secondary);
    font-size: 14px;
}

/* Active chat item in sidebar */
.chat-item.chat-item-active {
    background: var(--nexera-surface-active);
    font-weight: 600;
}

/* ===== CHAT ITEM ROW WITH DOTS MENU ===== */
.chat-item-row {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 8px 8px 8px 0px;
    border-radius: 8px;
    cursor: pointer;
    position: relative;
    border-bottom: none;
    margin-bottom: 2px;
    transition: background var(--nexera-transition-speed) ease;
}

    .chat-item-row:hover {
        background: var(--nexera-surface-hover);
    }

    .chat-item-row.chat-item-active {
        background: var(--nexera-surface-active);
        font-weight: 600;
    }

.chat-item-content {
    flex: 1;
    min-width: 0;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
    font-size: 13px;
}

.chat-item-menu-wrapper {
    position: relative;
    flex-shrink: 0;
}

.chat-item-dots {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 24px;
    height: 24px;
    border-radius: 4px;
    cursor: pointer;
    visibility: hidden;
    opacity: 0;
    transition: opacity 0.15s ease;
}

    .chat-item-dots:hover {
        background: var(--nexera-surface-hover);
    }

.chat-item-row:hover .chat-item-dots {
    visibility: visible;
    opacity: 1;
}

.chat-item-dropdown {
    position: absolute;
    right: 0;
    top: 28px;
    width: 160px;
    background: var(--nexera-dropdown-bg);
    border: 1px solid var(--nexera-dropdown-border);
    border-radius: 10px;
    box-shadow: 0 8px 24px var(--nexera-shadow-strong);
    z-index: 1200;
    padding: 4px 0;
}

.chat-menu-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100vw;
    height: 100vh;
    z-index: 1100;
    background: transparent;
}

.chat-menu-item {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 8px 12px;
    font-size: 13px;
    cursor: pointer;
    border-radius: 6px;
    margin: 0 4px;
    transition: background var(--nexera-transition-speed) ease;
}

    .chat-menu-item:hover {
        background: var(--nexera-surface-hover);
    }

.chat-rename-input {
    width: 100%;
    border: 1px solid var(--nexera-input-border);
    border-radius: 6px;
    padding: 4px 8px;
    font-size: 13px;
    outline: none;
    background: var(--nexera-input-bg);
    color: var(--nexera-text);
    transition: border-color var(--nexera-transition-speed) ease, box-shadow var(--nexera-transition-speed) ease;
}

    .chat-rename-input:focus {
        border-color: var(--nexera-rename-focus);
        box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.15);
    }
.right-section-header .icon {
    padding: 8px;
}

/* ===== THEME MENU ===== */
.theme-menu-label {
    font-size: 11px;
    font-weight: 600;
    color: var(--nexera-text-secondary);
    padding: 4px 12px 6px;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.theme-option {
    display: flex;
    align-items: center;
    gap: 8px;
    position: relative;
    transition: background var(--nexera-transition-speed) ease;
}

.theme-option.theme-active {
    background: var(--nexera-surface-active);
}

.theme-check {
    margin-left: auto;
    font-size: 14px;
    font-weight: 600;
    color: var(--nexera-rename-focus);
}

.theme-menu-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100vw;
    height: 100vh;
    z-index: 999;
    background: transparent;
}

/* ===== PANEL MODE (inline right panel in MainLayout) ===== */

/* Top-level wrapper */
.nexera-layout-root {
    display: flex;
    flex-direction: column;
    min-height: 100vh;
    width: 100%;
}

/* Main content area — fills available width */
.nexera-main-area {
    flex: 1;
    min-width: 0;
    display: flex;
    flex-direction: column;
}

/* Body row: main content + chat panel side by side, between header and footer */
.nexera-body-row {
    display: flex;
    flex-direction: row;
    flex: 1;
    min-height: 0;
    overflow: hidden;
}

/* Left column: ProjectNavMenu + main body stacked vertically */
.nexera-body-main {
    flex: 1;
    min-width: 0;
    display: flex;
    flex-direction: column;
    overflow-y: auto;
}

/* When the chat panel is open, add rounded corners and border to main content */
.nexera-body-row:has(.nexera-panel-inline) .nexera-body-main {
    border-radius: 10px;
    border: 1px solid var(--nexera-border, #ddd);
    margin-right: 3px;
}

/* Inline right panel — fixed width, fills space between header and footer */
.nexera-panel-inline {
    width: 380px;
    min-width: 380px;
    background: var(--nexera-surface, #fff);
    display: flex;
    flex-direction: column;
    overflow: hidden;
    flex-shrink: 0;
    border-left: 1px solid var(--nexera-border, #ddd);
    box-shadow: -4px 0 12px rgba(0, 0, 0, 0.06);
    border-radius: 10px;
}

/* Panel mode overrides for #nexera-chat-app */
#nexera-chat-app.nexera-panel-mode {
    min-height: unset;
    height: 100%;
    max-height: 100%;
    width: 100%;
    display: flex;
    flex-direction: column;
    overflow: hidden;
    border-top-left-radius: 10px;
    border-bottom-left-radius: 10px;
    border-left: 1px solid var(--nexera-border, #ddd);
    border-bottom: 1px solid var(--nexera-border, #ddd);
    background: var(--nexera-surface, #fff);
}

/* Panel header bar (Copilot-style) */
.nexera-panel-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 10px 12px;
    height: 48px;
    min-height: 48px;
    background: var(--nexera-surface);
    border-bottom: 1px solid var(--nexera-border);
    border-top-left-radius: 10px;
    flex-shrink: 0;
}

.nexera-panel-header-left {
    display: flex;
    align-items: center;
    gap: 6px;
}

.nexera-panel-title {
    font-size: 16px;
    font-weight: 600;
    color: var(--nexera-text);
}

.nexera-panel-actions {
    display: flex;
    align-items: center;
    gap: 4px;
}

.nexera-panel-btn {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 32px;
    height: 32px;
    border-radius: 6px;
    cursor: pointer;
    transition: background 0.15s ease;
}

.nexera-panel-btn:hover {
    background: var(--nexera-surface-hover);
}

/* Panel content area — fills remaining space */
.nexera-panel-content {
    flex: 1;
    min-height: 0;
    overflow: hidden;
    display: flex;
    flex-direction: column;
}

/* Override chat-container height in panel mode */
#nexera-chat-app.nexera-panel-mode .chat-container {
    height: 100%;
    flex: 1;
    min-height: 0;
}

/* Override chat-box width in panel mode */
#nexera-chat-app.nexera-panel-mode .chat-box-wrapper {
    width: 95%;
}

/* Override chat-history padding in panel mode */
#nexera-chat-app.nexera-panel-mode .chat-history-container {
    padding: 20px 16px;
}

/* Override chat-bubble max-width in panel mode */
#nexera-chat-app.nexera-panel-mode .chat-bubble {
    max-width: 85%;
}

/* Override chat message layout in panel mode — stack vertically (avatar on top, bubble below) */
#nexera-chat-app.nexera-panel-mode .chat-message-row {
    flex-direction: column;
    gap: 4px;
}

#nexera-chat-app.nexera-panel-mode .chat-message-row.user-row {
    align-items: flex-end;
}

#nexera-chat-app.nexera-panel-mode .chat-message-row.ai-row {
    align-items: flex-start;
}

/* ===== PAGINATION RESPONSE: TABLE vs LIST VIEW ===== */
/* Default (popup/expanded mode): show table, hide list */
.nexera-table-view {
    display: block;
}

.nexera-list-view {
    display: none;
}

/* Panel mode (narrow docked panel): show list, hide table */
#nexera-chat-app.nexera-panel-mode .nexera-table-view {
    display: none !important;
}

#nexera-chat-app.nexera-panel-mode .nexera-list-view {
    display: block !important;
}

/* Fullscreen override: always show table, hide list (even if nexera-panel-mode class is present) */
.nexera-fullscreen-content .nexera-table-view {
    display: block !important;
}

.nexera-fullscreen-content .nexera-list-view {
    display: none !important;
}

/* Table styling within chat bubbles */
.nexera-table-view table {
    border-collapse: collapse;
    width: 100%;
    font-size: 13px;
    margin: 8px 0;
}

.nexera-table-view th,
.nexera-table-view td {
    border: 1px solid var(--nexera-border, #d0d0d0);
    padding: 4px 8px;
    text-align: left;
}

.nexera-table-view th {
    background: var(--nexera-surface-hover, #f3f4f6);
    font-weight: 600;
    padding: 6px 8px;
}

.nexera-table-view tr:nth-child(even) {
    background: var(--nexera-surface-hover, #fafafa);
}

.nexera-table-view a {
    color: var(--nexera-link, #0078d4);
    text-decoration: none;
}

.nexera-table-view a:hover {
    text-decoration: underline;
}

/* Navigation buttons for paginated tables */
.nexera-table-nav {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 12px;
    padding: 8px 0;
    margin-top: 4px;
}

.nexera-table-header {
    font-size: 12px;
    color: var(--nexera-text-secondary, #666);
    padding: 4px 0 6px;
}

.nexera-nav-btn {
    background: transparent;
    border: 1px solid var(--nexera-link, #0078d4);
    color: var(--nexera-link, #0078d4);
    padding: 4px 12px;
    border-radius: 4px;
    cursor: pointer;
    font-size: 12px;
    transition: background 0.15s, color 0.15s;
}

.nexera-nav-btn:hover:not(:disabled) {
    background: var(--nexera-link, #0078d4);
    color: #fff;
}

.nexera-nav-btn:disabled {
    opacity: 0.4;
    cursor: default;
    border-color: #aaa;
    color: #aaa;
}

.nexera-nav-info {
    font-size: 12px;
    color: var(--nexera-text-secondary, #666);
}

/* ===== PANEL SIDEBAR POPOVER ===== */

/* Overlay behind the popover sidebar */
.nexera-panel-sidebar-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.25);
    z-index: 1200;
    border-top-left-radius: 10px;
    border-bottom-left-radius: 10px;
}

/* Popover sidebar container — slides over the panel content */
.nexera-panel-sidebar {
    position: absolute;
    top: 0;
    left: 0;
    width: 280px;
    height: 100%;
    z-index: 1201;
    border-top-left-radius: 10px;
    border-bottom-left-radius: 10px;
    overflow: hidden;
    box-shadow: 4px 0 16px rgba(0, 0, 0, 0.15);
}

/* Override #sidebar styles inside the panel popover */
.nexera-panel-sidebar #sidebar {
    position: relative;
    width: 100% !important;
    height: 100%;
    border-radius: 0;
    border-top-left-radius: 10px;
    border-bottom-left-radius: 10px;
    box-shadow: none;
}

/* ===== PANEL FULLSCREEN MODE ===== */

/* Fullscreen overlay — covers viewport below the app header */
.nexera-fullscreen-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100vw;
    height: 100vh;
    z-index: 2000;
    background: rgba(0, 0, 0, 0.5);
    display: flex;
    align-items: center;
    justify-content: center;
    animation: nexera-modal-fade-in 0.2s ease;
}

@keyframes nexera-modal-fade-in {
    from {
        opacity: 0;
    }
    to {
        opacity: 1;
    }
}

/* Fullscreen container */
.nexera-fullscreen-container {
    width: 90vw;
    height: 90vh;
    max-width: 1400px;
    max-height: 900px;
    display: flex;
    flex-direction: column;
    position: relative;
    background: var(--nexera-bg);
    border-radius: 12px;
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.25);
    overflow: hidden;
    animation: nexera-modal-scale-in 0.2s ease;
}

@keyframes nexera-modal-scale-in {
    from {
        transform: scale(0.95);
        opacity: 0;
    }
    to {
        transform: scale(1);
        opacity: 1;
    }
}

/* Override sidebar to stay inside fullscreen container (not the viewport) */
.nexera-fullscreen-container #sidebar {
    position: absolute;
    top: 0;
    height: 100%;
    z-index: 2010;
    border-radius: 12px 0 0 12px;
}

/* Fullscreen top bar */
.nexera-fullscreen-topbar {
    position: absolute;
    top: 0;
    left: 260px;
    right: 0;
    height: 60px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 16px;
    background: var(--nexera-surface);
    border-bottom: 1px solid var(--nexera-border);
    box-shadow: 0 1px 3px var(--nexera-shadow);
    z-index: 2001;
    transition: left 0.3s ease;
    border-radius: 0 12px 0 0;
}

.nexera-fullscreen-topbar.collapsed {
    left: 70px;
}

/* Fullscreen content area */
.nexera-fullscreen-content {
    margin-top: 60px;
    margin-left: 260px;
    padding: 20px;
    height: calc(100% - 60px);
    display: flex;
    justify-content: center;
    transition: margin-left 0.3s ease;
}

.nexera-fullscreen-content.collapsed {
    margin-left: 70px;
}

/* ===== TYPING / LOADING INDICATOR ===== */
.nexera-typing-bubble {
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 40px;
    min-width: 60px;
    padding: 10px 16px;
}

/* Disabled send button */
.nexera-send.disabled {
    opacity: 0.4;
    pointer-events: none;
    cursor: not-allowed;
}

/* ===== ATTACHMENT PREVIEW & MENU ===== */

.chat-box-wrapper {
    display: flex;
    flex-direction: column;
    align-items: center;
    width: 70%;
    max-width: 768px;
    margin: auto auto 16px;
    gap: 6px;
}

/* Chat box expands with rounder-rectangle shape when attachment present */
.chat-box.has-attachment {
    border-radius: 20px;
    padding: 12px;
}

/* Horizontal input row inside chat-box */
.chat-input-row {
    display: flex;
    align-items: center;
    width: 100%;
    gap: 4px;
}

.chat-input-row input {
    flex: 1;
    border: none;
    outline: none;
    background: transparent;
    color: var(--nexera-text);
}

/* Attachment preview area (inside chat-box, above input row) */
.attachment-preview-area {
    padding: 4px 4px 10px;
}

.attachment-preview-card {
    position: relative;
    display: inline-block;
    border-radius: 10px;
    overflow: visible;
    border: 1px solid var(--nexera-border, #e0e0e0);
    background: var(--nexera-surface-hover, #f5f5f5);
}

.attachment-preview-close {
    position: absolute;
    top: -8px;
    right: -8px;
    cursor: pointer;
    z-index: 2;
    display: flex;
    align-items: center;
    justify-content: center;
    background: #555;
    border-radius: 50%;
    width: 22px;
    height: 22px;
    transition: background var(--nexera-transition-speed) ease;
}

.attachment-preview-close .fluent-icon {
    color: white;
    fill: white;
    font-size: 12px;
}

.attachment-preview-close:hover {
    background: #333;
}

.attachment-preview-img {
    display: block;
    max-width: 120px;
    max-height: 80px;
    object-fit: cover;
    border-radius: 10px;
}

.attachment-preview-file {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 12px 16px;
    gap: 4px;
    min-width: 80px;
}

.attachment-preview-name {
    font-size: 11px;
    max-width: 100px;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
    color: var(--nexera-text-secondary, #666);
}

.attachment-trigger-wrapper {
    position: relative;
}

.attachment-menu-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100vw;
    height: 100vh;
    z-index: 900;
}

.attachment-menu {
    position: absolute;
    bottom: 40px;
    left: 0;
    min-width: 200px;
    background: var(--nexera-surface, #fff);
    border: 1px solid var(--nexera-border, #e0e0e0);
    border-radius: 12px;
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.12);
    padding: 6px 0;
    z-index: 1000;
}

.attachment-menu-item {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 10px 16px;
    cursor: pointer;
    font-size: 14px;
    color: var(--nexera-text, #333);
    transition: background 0.15s ease;
    white-space: nowrap;
    border-radius: 6px;
    margin: 0 4px;
}

.attachment-menu-item:hover {
    background: var(--nexera-surface-hover, #f5f5f5);
}

/* Inline validation error for file attachment */
.attachment-error {
    flex: 1;
    font-size: 13px;
    color: #d13438;
    padding: 0 4px;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

/* Page-level loading overlay — centered within the chat app */
#nexera-chat-app > .loading-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(243, 242, 245, 0.7);
    z-index: 4000;
    border-radius: inherit;
}

/* ===== AI BUBBLE ERROR STYLING ===== */
.chat-bubble.ai-bubble-error {
    border-left: 3px solid #ef4444;
}

/* ===== MARKDOWN CONTENT INSIDE AI BUBBLES ===== */
.chat-bubble.ai-bubble .chat-bubble-content h1,
.chat-bubble.ai-bubble .chat-bubble-content h2,
.chat-bubble.ai-bubble .chat-bubble-content h3 {
    margin: 8px 0 4px;
    font-size: 14px;
    font-weight: 700;
    line-height: 1.4;
}

.chat-bubble.ai-bubble .chat-bubble-content h3 {
    font-size: 13px;
}

.chat-bubble.ai-bubble .chat-bubble-content p {
    margin: 4px 0;
}

.chat-bubble.ai-bubble .chat-bubble-content ul,
.chat-bubble.ai-bubble .chat-bubble-content ol {
    margin: 4px 0;
    padding-left: 20px;
}

.chat-bubble.ai-bubble .chat-bubble-content li {
    margin: 2px 0;
}

.chat-bubble.ai-bubble .chat-bubble-content strong {
    font-weight: 700;
}

.chat-bubble.ai-bubble .chat-bubble-content code {
    background: rgba(0, 0, 0, 0.06);
    padding: 1px 4px;
    border-radius: 4px;
    font-size: 13px;
    font-family: 'Cascadia Code', 'Consolas', monospace;
}

.chat-bubble.ai-bubble .chat-bubble-content pre {
    background: rgba(0, 0, 0, 0.06);
    padding: 10px 14px;
    border-radius: 8px;
    overflow-x: auto;
    margin: 6px 0;
}

.chat-bubble.ai-bubble .chat-bubble-content pre code {
    background: none;
    padding: 0;
}

.chat-bubble.ai-bubble .chat-bubble-content > *:first-child {
    margin-top: 0;
}

.chat-bubble.ai-bubble .chat-bubble-content > *:last-child {
    margin-bottom: 0;
}

/* ===== SEARCH CHAT POPUP ===== */
.search-popup-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100vw;
    height: 100vh;
    background: rgba(0, 0, 0, 0.4);
    z-index: 5000;
    display: flex;
    align-items: flex-start;
    justify-content: center;
    padding-top: 10vh;
}

.search-popup {
    width: 580px;
    max-height: 70vh;
    background: var(--nexera-surface, #fff);
    border-radius: 14px;
    box-shadow: 0 16px 48px rgba(0, 0, 0, 0.2);
    display: flex;
    flex-direction: column;
    overflow: hidden;
}

/* Header row: search input + close */
.search-popup-header {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 14px 16px;
    border-bottom: 1px solid var(--nexera-border, #ddd);
}

.search-popup-input-wrapper {
    flex: 1;
    display: flex;
    align-items: center;
    gap: 8px;
}

.search-popup-search-icon {
    display: flex;
    align-items: center;
    color: var(--nexera-text-muted, gray);
}

.search-popup-input {
    flex: 1;
    border: none;
    outline: none;
    font-size: 15px;
    background: transparent;
    color: var(--nexera-text, #1a1a1a);
}

.search-popup-input::placeholder {
    color: var(--nexera-text-muted, gray);
}

.search-popup-close {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 32px;
    height: 32px;
    border-radius: 6px;
    cursor: pointer;
    flex-shrink: 0;
    transition: background var(--nexera-transition-speed) ease;
}

.search-popup-close:hover {
    background: var(--nexera-surface-hover, #f5f5f5);
}

/* New chat row */
.search-popup-new-chat {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 10px 16px;
    cursor: pointer;
    font-size: 14px;
    font-weight: 500;
    color: var(--nexera-text, #1a1a1a);
    border-bottom: 1px solid var(--nexera-border, #ddd);
    transition: background var(--nexera-transition-speed) ease;
}

.search-popup-new-chat:hover {
    background: var(--nexera-surface-hover, #f5f5f5);
}

/* Scrollable chat list */
.search-popup-list {
    flex: 1;
    overflow-y: auto;
    padding: 4px 0;
}

/* Group label (Today, Yesterday, etc.) */
.search-popup-group-label {
    font-size: 12px;
    font-weight: 600;
    color: var(--nexera-text-muted, gray);
    padding: 10px 16px 4px;
    text-transform: capitalize;
}

/* Each session item */
.search-popup-item {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 8px 16px;
    cursor: pointer;
    font-size: 14px;
    color: var(--nexera-text, #1a1a1a);
    transition: background var(--nexera-transition-speed) ease;
}

.search-popup-item:hover {
    background: var(--nexera-surface-hover, #f5f5f5);
}

.search-popup-item-icon {
    display: flex;
    align-items: center;
    color: var(--nexera-icon-fill, #6b7280);
    flex-shrink: 0;
}

.search-popup-item-title {
    flex: 1;
    min-width: 0;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

/* Empty state */
.search-popup-empty {
    text-align: center;
    padding: 24px 16px;
    font-size: 14px;
    color: var(--nexera-text-muted, gray);
}

/* Panel-mode: search popup contained inside the chat panel */
.search-popup-overlay.search-popup-panel {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    padding-top: 48px;
    border-radius: inherit;
}

.search-popup-overlay.search-popup-panel .search-popup {
    width: 95%;
    max-height: calc(100% - 60px);
    border-radius: 10px;
}

/* Fullscreen-mode: search popup centered over the fullscreen overlay */
.search-popup-overlay.search-popup-fullscreen {
    position: fixed;
    top: 38px;
    left: 0;
    width: 100vw;
    height: calc(100vh - 38px);
    padding-top: 8vh;
}

/* ===== POPUP CENTERING: When AI panel is open, keep popups centered in the Nexus main area ===== */

/* 1. Telerik modal overlay: exclude the AI panel area so the overlay only covers main content */
.nexera-layout-root:has(.nexera-panel-inline) ~ .k-overlay {
    right: 380px;
}

/* 2. Telerik centered Window: shift left by half the panel width to re-center in main content */
.nexera-layout-root:has(.nexera-panel-inline) ~ .k-animation-container .k-window {
    transform: translateX(-190px);
}

/* ===== SUGGESTION CHIPS ===== */
.suggestion-chips {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    justify-content: center;
    margin-bottom: 24px;
    max-width: 640px;
}

.suggestion-chip {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 10px 16px;
    border: 1px solid var(--nexera-border);
    border-radius: 12px;
    background: var(--nexera-surface);
    color: var(--nexera-text);
    font-size: 13px;
    cursor: pointer;
    transition: all 0.2s ease;
    box-shadow: 0 1px 3px var(--nexera-shadow);
}

    .suggestion-chip:hover {
        background: var(--nexera-surface-hover);
        border-color: var(--nexera-rename-focus);
        box-shadow: 0 2px 8px var(--nexera-shadow-strong);
        transform: translateY(-1px);
    }

    .suggestion-chip:active {
        transform: translateY(0);
    }

/* ===== TEXTAREA STYLE ===== */
.chat-textarea {
    flex: 1;
    border: none;
    outline: none;
    background: transparent;
    color: var(--nexera-text);
    font-size: 15px;
    font-family: inherit;
    padding: 6px 4px;
    resize: none;
    min-height: 28px;
    max-height: 150px;
    overflow-y: auto;
    line-height: 1.5;
}

    .chat-textarea::placeholder {
        color: var(--nexera-text-muted);
    }

    /* ===== DISCLAIMER TEXT ===== */
.chat-disclaimer {
    text-align: center;
    font-size: 11px;
    color: var(--nexera-text-muted);
    padding-top: 4px;
}

/* ===== SCROLLABLE CHAT LIST IN SIDEBAR ===== */
.chat-list-scrollable {
    flex: 1;
    overflow-y: auto;
    overflow-x: hidden;
    min-height: 0;
    padding-right: 2px;
}

.chat-list-scrollable::-webkit-scrollbar {
    width: 4px;
}

.chat-list-scrollable::-webkit-scrollbar-track {
    background: transparent;
}

.chat-list-scrollable::-webkit-scrollbar-thumb {
    background: var(--nexera-border, #ddd);
    border-radius: 2px;
}

.chat-list-scrollable::-webkit-scrollbar-thumb:hover {
    background: var(--nexera-text-muted, #999);
}

/* ===== CHAT INPUT PINNED TO BOTTOM ===== */
.chat-box-wrapper {
    display: flex;
    flex-direction: column;
    align-items: center;
    width: 70%;
    max-width: 768px;
    margin: auto auto 16px;
    gap: 6px;
}

.chat-started .chat-box-wrapper {
    margin-top: auto;
}

/* ===== TALLER CHAT INPUT (Copilot-style) ===== */
.chat-box {
    width: 100%;
    border: 1px solid var(--nexera-border);
    background: var(--nexera-surface);
    border-radius: 16px;
    padding: 12px 16px;
    display: flex;
    flex-direction: column;
    flex-shrink: 0;
    box-shadow: var(--nexera-chat-input-shadow, 0 2px 12px rgba(0, 0, 0, 0.08));
    transition: border-color 0.2s ease, box-shadow 0.2s ease;
    min-height: 56px;
}

    .chat-box:focus-within {
        border-color: var(--nexera-rename-focus, #3b82f6);
        box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.12), var(--nexera-chat-input-shadow, 0 2px 12px rgba(0, 0, 0, 0.08));
    }

    .chat-box input {
        flex: 1;
        border: none;
        outline: none;
        background: transparent;
        color: var(--nexera-text);
        font-size: 15px;
        padding: 6px 4px;
        min-height: 28px;
    }

        .chat-box input::placeholder {
            color: var(--nexera-text-muted);
        }
.right-section-header .nexera-icon {
    padding: 8px;
}