/* =========================================
   Kira AI Chat – VibeWP Warm Brown Theme
   Đồng bộ hoàn toàn với tông nâu cam của site
   ========================================= */

:root {
    --ka-primary: #C87941;
    --ka-primary-dark: #7B3F00;
    --ka-primary-light: #E8A060;
    --ka-secondary: #8B4513;
    --ka-accent: #B5621E;
    --ka-gradient: linear-gradient(135deg, #C87941, #8B4513);

    --ka-bg: #FDF8F3;
    --ka-bg-alt: #FFF8F2;
    --ka-card: #FFFFFF;
    --ka-border: #E8D5C0;
    --ka-border-light: rgba(200, 121, 65, 0.15);

    --ka-text: #2D1A0A;
    --ka-text-muted: #8A6E54;
    --ka-white: #FFFFFF;

    --ka-font: 'Be Vietnam Pro', 'Outfit', sans-serif;
    --ka-radius: 12px;
    --ka-radius-lg: 20px;
    --ka-shadow: 0 8px 32px rgba(200, 121, 65, 0.12);
    --ka-shadow-hover: 0 16px 48px rgba(200, 121, 65, 0.22);
    --ka-transition: all 0.3s ease;
    --ka-sidebar-width: 300px;
}

/* ---- Reset scoped ---- */
#kira-chat-workspace *,
#kira-chat-workspace *::before,
#kira-chat-workspace *::after {
    box-sizing: border-box;
}

/* ---- Scrollbars ---- */
#kira-chat-workspace ::-webkit-scrollbar {
    width: 5px;
}

#kira-chat-workspace ::-webkit-scrollbar-track {
    background: #f0e6da;
}

#kira-chat-workspace ::-webkit-scrollbar-thumb {
    background: var(--ka-primary);
    border-radius: 3px;
}

/* ==============================
   MAIN WORKSPACE CONTAINER
   ============================== */
#kira-chat-workspace {
    display: flex;
    width: 100%;
    min-height: calc(100vh - 120px);
    font-family: var(--ka-font);
    color: var(--ka-text);
    background: var(--ka-bg);
    position: relative;
}

/* ==============================
   1. SIDEBAR
   ============================== */
.chat-sidebar {
    width: var(--ka-sidebar-width);
    background: var(--ka-white);
    border-right: 1px solid var(--ka-border);
    display: flex;
    flex-direction: column;
    flex-shrink: 0;
    z-index: 10;
    transition: var(--ka-transition);
}

.sidebar-header {
    padding: 24px 20px;
    display: flex;
    flex-direction: column;
    gap: 16px;
    border-bottom: 1px solid var(--ka-border);
}

.brand {
    display: flex;
    align-items: center;
    gap: 10px;
}

.brand .sparkle {
    font-size: 22px;
    animation: sparkle-glow 3s infinite alternate;
}

.brand h2 {
    font-size: 22px;
    font-weight: 800;
    letter-spacing: -0.5px;
    background: var(--ka-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: 0;
}

.btn-new-chat {
    width: 100%;
    padding: 12px 16px;
    background: var(--ka-gradient);
    border: none;
    border-radius: var(--ka-radius);
    color: var(--ka-white);
    font-family: var(--ka-font);
    font-size: 14px;
    font-weight: 600;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    cursor: pointer;
    transition: var(--ka-transition);
    box-shadow: 0 4px 15px rgba(200, 121, 65, 0.25);
}

.btn-new-chat:hover {
    background: linear-gradient(135deg, var(--ka-primary-light), var(--ka-primary));
    transform: translateY(-2px);
    box-shadow: var(--ka-shadow-hover);
}

/* Tools List */
.sidebar-tools-container {
    padding: 16px 16px 0;
}

.tools-list {
    list-style: none;
    margin: 0;
    padding: 0;
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.tool-item a {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 10px 12px;
    border-radius: var(--ka-radius);
    text-decoration: none;
    color: var(--ka-text);
    font-size: 14px;
    font-weight: 500;
    transition: var(--ka-transition);
}

.tool-item a:hover {
    background: var(--ka-bg);
}

.tool-item.active a {
    background: var(--ka-bg);
    color: var(--ka-primary);
    font-weight: 600;
}

.sidebar-divider {
    border: 0;
    height: 1px;
    background: var(--ka-border);
    margin: 16px 20px 0;
}

/* Conversations List */
.conversations-list-container {
    flex: 1;
    overflow-y: auto;
    padding: 16px 16px;
}

.section-title {
    font-size: 11px;
    text-transform: uppercase;
    color: var(--ka-text-muted);
    letter-spacing: 1.5px;
    margin-bottom: 12px;
    font-weight: 700;
    padding: 0 4px;
}

.conversations-list {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 4px;
    padding: 0;
    margin: 0;
}

.conversations-list li {
    padding: 11px 14px;
    border-radius: 10px;
    cursor: pointer;
    font-size: 14px;
    font-weight: 500;
    color: var(--ka-text-muted);
    display: flex;
    align-items: center;
    justify-content: space-between;
    transition: var(--ka-transition);
    border: 1px solid transparent;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.conversations-list li:hover {
    background: rgba(200, 121, 65, 0.06);
    color: var(--ka-text);
    border-color: var(--ka-border-light);
}

.conversations-list li.active {
    background: rgba(200, 121, 65, 0.1);
    color: var(--ka-secondary);
    border-color: rgba(200, 121, 65, 0.3);
    font-weight: 600;
    border-left: 3px solid var(--ka-primary);
}

.conversations-list li .delete-btn {
    opacity: 0;
    color: var(--ka-text-muted);
    background: transparent;
    border: none;
    cursor: pointer;
    font-size: 12px;
    transition: opacity 0.2s;
}

.conversations-list li:hover .delete-btn {
    opacity: 1;
}

.conversations-list li .delete-btn:hover {
    color: #dc3545;
}

/* Sidebar Footer */
.sidebar-footer {
    padding: 16px 20px;
    border-top: 1px solid var(--ka-border);
    display: flex;
    align-items: center;
    justify-content: space-between;
    background: #FFF8F2;
}

.user-profile {
    display: flex;
    align-items: center;
    gap: 12px;
}

.user-profile .avatar {
    width: 36px;
    height: 36px;
    border-radius: 50%;
    background: var(--ka-gradient);
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    color: white;
    font-size: 14px;
}

.user-info {
    display: flex;
    flex-direction: column;
}

.user-name {
    font-size: 14px;
    font-weight: 700;
    color: var(--ka-text);
}

.user-role {
    font-size: 11px;
    color: var(--ka-text-muted);
    font-weight: 500;
}

.btn-settings {
    color: var(--ka-text-muted);
    text-decoration: none;
    font-size: 18px;
    cursor: pointer;
    transition: var(--ka-transition);
}

.btn-settings:hover {
    color: var(--ka-primary);
}

/* ==============================
   2. MAIN CHAT AREA
   ============================== */
.chat-main {
    flex: 1;
    display: flex;
    flex-direction: column;
    min-height: 0;
    min-width: 0;
    position: relative;
    background: var(--ka-bg);
}

/* ---- Header Bar ---- */
.chat-header {
    height: 68px;
    border-bottom: 1px solid var(--ka-border);
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 28px;
    background: rgba(255, 252, 248, 0.95);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    z-index: 5;
}

.active-chat-info {
    display: flex;
    align-items: center;
    gap: 12px;
}

.active-chat-info h3 {
    font-size: 16px;
    font-weight: 700;
    color: var(--ka-text);
    margin-bottom: 0;
}

.model-badge {
    padding: 4px 12px;
    border-radius: 20px;
    background: rgba(200, 121, 65, 0.1);
    border: 1px solid rgba(200, 121, 65, 0.25);
    color: var(--ka-secondary);
    font-size: 11px;
    font-weight: 700;
    letter-spacing: 0.3px;
}

/* Mode Selector Toggle */
.mode-selector {
    display: flex;
    background: rgba(200, 121, 65, 0.06);
    border: 1px solid var(--ka-border);
    border-radius: 20px;
    padding: 3px;
}

.mode-tab {
    padding: 6px 16px;
    border-radius: 17px;
    font-family: var(--ka-font);
    font-size: 12px;
    font-weight: 600;
    border: none;
    background: transparent;
    color: var(--ka-text-muted);
    cursor: pointer;
    transition: var(--ka-transition);
}

.mode-tab.active {
    background: var(--ka-gradient);
    color: var(--ka-white);
    box-shadow: 0 2px 8px rgba(200, 121, 65, 0.3);
}

.mode-tab:hover:not(.active) {
    color: var(--ka-primary);
}

/* ---- Messages Container ---- */
.chat-messages-wrapper {
    flex: 1;
    overflow-y: auto;
    padding: 32px 0;
    display: flex;
    justify-content: center;
}

.chat-messages {
    width: 100%;
    max-width: 800px;
    padding: 0 20px;
    display: flex;
    flex-direction: column;
    gap: 28px;
}

/* ---- Welcome Screen ---- */
.welcome-screen {
    text-align: center;
    margin-top: 30px;
    display: flex;
    flex-direction: column;
    align-items: center;
}

.welcome-avatar {
    width: 72px;
    height: 72px;
    border-radius: var(--ka-radius-lg);
    background: var(--ka-gradient);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 32px;
    margin-bottom: 24px;
    box-shadow: 0 8px 30px rgba(200, 121, 65, 0.3);
    animation: bounce 2.5s ease-in-out infinite alternate;
}

.welcome-screen h1 {
    font-size: 30px;
    font-weight: 800;
    margin-bottom: 8px;
    color: var(--ka-text);
    letter-spacing: -0.5px;
}

.welcome-subtitle {
    font-size: 15px;
    color: var(--ka-text-muted);
    max-width: 460px;
    margin-bottom: 36px;
    line-height: 1.6;
}

.suggestion-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 14px;
    width: 100%;
    max-width: 640px;
}

.suggestion-grid:has(> :only-child) {
    grid-template-columns: 1fr;
    max-width: 320px;
    margin: 0 auto;
}

.suggestion-card {
    background: var(--ka-card);
    border: 1px solid var(--ka-border);
    padding: 20px;
    border-radius: var(--ka-radius-lg);
    text-align: left;
    cursor: pointer;
    transition: var(--ka-transition);
    box-shadow: 0 2px 10px rgba(200, 121, 65, 0.06);
}

.suggestion-card:hover {
    border-color: var(--ka-primary);
    transform: translateY(-4px);
    box-shadow: var(--ka-shadow-hover);
}

.suggestion-card h4 {
    font-size: 14px;
    font-weight: 700;
    margin-bottom: 6px;
    color: var(--ka-text);
}

.suggestion-card p {
    font-size: 12px;
    color: var(--ka-text-muted);
    line-height: 1.5;
    margin: 0;
}

/* ==============================
   3. MESSAGE BUBBLES
   ============================== */
.message-row {
    display: flex;
    width: 100%;
    margin-bottom: 6px;
    animation: slide-in 0.3s ease-out;
}

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

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

.message-container {
    display: flex;
    gap: 14px;
    max-width: 82%;
}

.message-avatar {
    width: 36px;
    height: 36px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    flex-shrink: 0;
    font-size: 13px;
}

.user .message-avatar {
    background: var(--ka-primary);
    color: white;
}

.assistant .message-avatar {
    background: var(--ka-gradient);
    color: white;
}

.message-content {
    background: var(--ka-card);
    border: 1px solid var(--ka-border);
    padding: 16px 20px;
    border-radius: 16px;
    line-height: 1.7;
    font-size: 14.5px;
    color: var(--ka-text);
    box-shadow: 0 2px 8px rgba(200, 121, 65, 0.06);
}

.user .message-content {
    background: linear-gradient(135deg, #C87941, #A0602E);
    color: var(--ka-white);
    border-color: transparent;
    border-top-right-radius: 4px;
}

.assistant .message-content {
    border-top-left-radius: 4px;
}

.message-content p {
    margin-bottom: 10px;
}

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

.message-content img.generated-image {
    max-width: 100%;
    width: 280px;
    height: auto;
    border-radius: var(--ka-radius);
    margin-top: 12px;
    border: 2px solid var(--ka-border);
    box-shadow: var(--ka-shadow);
    display: block;
}

/* ---- Loading Animation ---- */
.loading-dots {
    display: flex;
    gap: 5px;
    align-items: center;
    height: 24px;
}

.loading-dots span {
    width: 8px;
    height: 8px;
    background-color: var(--ka-primary);
    border-radius: 50%;
    display: inline-block;
    animation: dot-blink 1.4s infinite both;
}

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

.loading-dots span:nth-child(3) {
    animation-delay: .4s;
}

/* ==============================
   4. INPUT FOOTER
   ============================== */
.chat-input-container {
    padding: 20px 28px;
    display: flex;
    justify-content: center;
    background: linear-gradient(180deg, transparent 0%, var(--ka-bg) 40%);
    position: relative;
    z-index: 5;
}

.input-form-wrapper {
    width: 100%;
    max-width: 800px;
    display: flex;
    flex-direction: column;
    gap: 6px;
}

.textarea-container {
    display: flex;
    align-items: center;
    background: var(--ka-card);
    border: 1.5px solid var(--ka-border);
    border-radius: var(--ka-radius-lg);
    padding: 8px 16px;
    transition: var(--ka-transition);
    box-shadow: 0 4px 20px rgba(200, 121, 65, 0.08);
}

.textarea-container:focus-within {
    border-color: var(--ka-primary);
    box-shadow: 0 4px 24px rgba(200, 121, 65, 0.18);
}

.textarea-container textarea {
    flex: 1;
    background: transparent;
    border: none;
    outline: none;
    color: var(--ka-text);
    font-family: var(--ka-font);
    font-size: 15px;
    line-height: 24px;
    resize: none;
    max-height: 200px;
    min-height: 24px;
    padding: 0 8px 0 0;
    display: block;
}

.textarea-container textarea::placeholder {
    color: var(--ka-text-muted);
    opacity: 0.7;
}

.btn-submit {
    width: 38px;
    height: 38px;
    border-radius: 10px;
    background: var(--ka-gradient);
    border: none;
    color: var(--ka-white);
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: var(--ka-transition);
    flex-shrink: 0;
    box-shadow: 0 2px 8px rgba(200, 121, 65, 0.25);
}

.btn-submit:hover {
    background: linear-gradient(135deg, var(--ka-primary-light), var(--ka-primary));
    transform: scale(1.08);
    box-shadow: 0 4px 12px rgba(200, 121, 65, 0.35);
}

.btn-submit svg {
    width: 18px;
    height: 18px;
}

.input-meta {
    padding: 0 8px;
    display: flex;
    justify-content: space-between;
}

.info-tip {
    font-size: 11px;
    color: var(--ka-text-muted);
}

.info-tip strong {
    color: var(--ka-secondary);
}

/* ==============================
   ANIMATIONS
   ============================== */
@keyframes sparkle-glow {
    from {
        transform: scale(1) rotate(0deg);
        filter: drop-shadow(0 0 2px rgba(200, 121, 65, 0.3));
    }

    to {
        transform: scale(1.1) rotate(12deg);
        filter: drop-shadow(0 0 8px rgba(200, 121, 65, 0.6));
    }
}

@keyframes bounce {
    from {
        transform: translateY(0);
    }

    to {
        transform: translateY(-8px);
    }
}

@keyframes slide-in {
    from {
        opacity: 0;
        transform: translateY(10px);
    }

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

@keyframes dot-blink {
    0% {
        opacity: .2;
    }

    20% {
        opacity: 1;
    }

    100% {
        opacity: .2;
    }
}

/* ==============================
   MARKDOWN & CODE STYLING
   ============================== */
#kira-chat-workspace .message-content p {
    margin: 0 0 12px 0;
    line-height: 1.6;
}

#kira-chat-workspace .message-content p:last-child {
    margin-bottom: 0;
}

#kira-chat-workspace .message-content ul,
#kira-chat-workspace .message-content ol {
    margin: 0 0 16px 0;
    padding-left: 20px;
}

#kira-chat-workspace .message-content li {
    margin-bottom: 6px;
    line-height: 1.5;
}

#kira-chat-workspace .inline-code {
    background: rgba(200, 121, 65, 0.08);
    color: #A0602E;
    padding: 2px 6px;
    border-radius: 4px;
    font-family: 'Courier New', Courier, monospace;
    font-size: 0.9em;
    font-weight: 600;
}

#kira-chat-workspace .code-block-container {
    background: #1E1E1E;
    border-radius: 8px;
    overflow: hidden;
    margin: 16px 0;
    border: 1px solid rgba(200, 121, 65, 0.2);
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.08);
}

#kira-chat-workspace .code-block-header {
    background: #2D2D2D;
    padding: 8px 16px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    border-bottom: 1px solid #3D3D3D;
}

#kira-chat-workspace .code-lang {
    color: #D4D4D4;
    font-size: 0.85em;
    font-weight: 600;
    text-transform: uppercase;
}

#kira-chat-workspace .copy-code-btn {
    background: transparent;
    border: 1px solid rgba(255, 255, 255, 0.2);
    color: #D4D4D4;
    padding: 4px 8px;
    border-radius: 4px;
    font-size: 0.8em;
    cursor: pointer;
    transition: var(--ka-transition);
}

#kira-chat-workspace .copy-code-btn:hover {
    background: rgba(255, 255, 255, 0.1);
    color: #FFFFFF;
}

#kira-chat-workspace pre {
    margin: 0;
    padding: 16px;
    overflow-x: auto;
}

#kira-chat-workspace pre code {
    color: #E6E6E6;
    font-family: 'Courier New', Courier, monospace;
    font-size: 0.9em;
    line-height: 1.5;
    background: transparent;
    padding: 0;
    border-radius: 0;
}

/* ==============================
   RESPONSIVE
   ============================== */
@media (max-width: 768px) {
    .chat-sidebar {
        position: fixed;
        left: -100%;
        top: 0;
        bottom: 0;
        z-index: 999;
        box-shadow: 4px 0 30px rgba(0, 0, 0, 0.15);
    }

    .chat-sidebar.open {
        left: 0;
    }

    .suggestion-grid {
        grid-template-columns: 1fr;
    }

    .chat-header {
        padding: 0 16px;
    }

    .mode-selector {
        display: none;
    }

}

/* ==========================================================================
   KIRA AI 1.2 NEW FEATURES (Aspect Ratio, Multi-Image Upload, Lightbox)
   ========================================================================== */

/* Bottom Input Toolbar */
.chat-input-toolbar {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 12px;
    padding: 0 4px;
}

@media (max-width: 768px) {
    .chat-input-toolbar {
        flex-wrap: wrap !important;
        gap: 8px !important;
    }

    div#welcome-screen img {
        width: 350px;
    }
}

.mode-selector-inline {
    display: flex;
    background: rgba(200, 121, 65, 0.06);
    border: 1px solid var(--ka-border);
    border-radius: 20px;
    padding: 3px;
}

#kira-chat-workspace .mode-pill {
    padding: 6px 16px !important;
    border-radius: 17px !important;
    font-family: var(--ka-font) !important;
    font-size: 12px !important;
    font-weight: 600 !important;
    border: none !important;
    background: transparent !important;
    color: var(--ka-text-muted) !important;
    cursor: pointer !important;
    transition: var(--ka-transition) !important;
    box-shadow: none !important;
    outline: none !important;
    display: inline-block !important;
    white-space: nowrap !important;
}

#kira-chat-workspace .mode-pill.active {
    background: var(--ka-gradient) !important;
    color: var(--ka-white) !important;
    box-shadow: 0 2px 8px rgba(200, 121, 65, 0.3) !important;
}

#kira-chat-workspace .mode-pill:hover:not(.active) {
    color: var(--ka-primary) !important;
    background: rgba(200, 121, 65, 0.08) !important;
}

#kira-chat-workspace .aspect-ratio-inline {
    display: flex;
    align-items: center !important;
    gap: 8px !important;
    background: var(--ka-card) !important;
    border: 1px solid var(--ka-border) !important;
    padding: 5px 12px !important;
    border-radius: 20px !important;
    transition: var(--ka-transition) !important;
}

#kira-chat-workspace .aspect-ratio-inline:hover {
    border-color: var(--ka-primary) !important;
}

#kira-chat-workspace .aspect-ratio-inline .ratio-label {
    font-size: 12px !important;
    font-weight: 500 !important;
    color: var(--ka-text-muted) !important;
    white-space: nowrap !important;
}

#kira-chat-workspace .inline-aspect-ratio-select {
    background: transparent !important;
    border: none !important;
    color: var(--ka-text) !important;
    font-size: 12px !important;
    font-weight: 600 !important;
    cursor: pointer !important;
    outline: none !important;
    box-shadow: none !important;
    padding: 0 !important;
    margin: 0 !important;
}

#kira-chat-workspace .inline-aspect-ratio-select option {
    background: #251B15 !important;
    color: var(--ka-text-main) !important;
}

/* Attach button inside input area */
.btn-attach {
    background: transparent;
    border: none;
    color: var(--ka-text-muted);
    cursor: pointer;
    padding: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    transition: var(--ka-transition);
    margin-right: 4px;
    width: 38px;
    height: 38px;
    flex-shrink: 0;
}

.btn-attach:hover {
    background: rgba(200, 121, 65, 0.12);
    color: var(--ka-primary);
}

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

/* Image Previews Container */
.attachment-previews {
    display: flex;
    gap: 12px;
    padding: 10px 12px;
    background: rgba(0, 0, 0, 0.15);
    border-bottom: 1px solid rgba(255, 255, 255, 0.05);
    border-radius: 12px 12px 0 0;
    overflow-x: auto;
}

.attachment-previews .preview-item {
    position: relative;
    width: 56px;
    height: 56px;
    border-radius: 8px;
    overflow: visible;
    border: 1.5px solid rgba(200, 121, 65, 0.3);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.2);
    flex-shrink: 0;
    transition: var(--ka-transition);
}

.attachment-previews .preview-item:hover {
    transform: translateY(-2px);
    border-color: var(--ka-primary);
}

.attachment-previews .preview-item img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    border-radius: 6px;
}

.attachment-previews .preview-item .remove-preview-btn {
    position: absolute;
    top: -6px;
    right: -6px;
    width: 18px;
    height: 18px;
    background: #E53E3E;
    color: #FFFFFF;
    border: none;
    border-radius: 50%;
    font-size: 11px;
    font-weight: 700;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.3);
    transition: var(--ka-transition);
}

.attachment-previews .preview-item .remove-preview-btn:hover {
    background: #C53030;
    transform: scale(1.15);
}

/* Reference images nested within user message bubbles */
.message-attached-images {
    display: flex;
    gap: 8px;
    margin-top: 10px;
    flex-wrap: wrap;
}

.message-attached-thumb {
    width: 64px;
    height: 64px;
    object-fit: cover;
    border-radius: 8px;
    border: 1px solid rgba(255, 255, 255, 0.15);
    cursor: zoom-in;
    transition: var(--ka-transition);
}

.message-attached-thumb:hover {
    transform: scale(1.05);
    border-color: var(--ka-primary);
    box-shadow: 0 4px 10px rgba(0, 0, 0, 0.3);
}

/* Lightbox overlay styled beautifully */
.image-lightbox-overlay {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(15, 10, 8, 0.95);
    z-index: 10000;
    display: flex;
    align-items: center;
    justify-content: center;
    animation: fadeIn 0.25s ease-out;
}

.lightbox-content {
    position: relative;
    max-width: 90%;
    max-height: 90%;
    display: flex;
    align-items: center;
    justify-content: center;
}

.lightbox-content img {
    max-width: 100%;
    max-height: 85vh;
    border-radius: 12px;
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.5);
    border: 1px solid rgba(255, 255, 255, 0.1);
}

.lightbox-close {
    position: absolute;
    top: -45px;
    right: 0;
    background: rgba(255, 255, 255, 0.1);
    color: #FFFFFF;
    border: none;
    font-size: 28px;
    font-weight: 300;
    width: 36px;
    height: 36px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: var(--ka-transition);
}

.lightbox-close:hover {
    background: rgba(255, 255, 255, 0.2);
    color: var(--ka-primary);
}

@keyframes fadeIn {
    from {
        opacity: 0;
    }

    to {
        opacity: 1;
    }
}

/* Image Download Button */
#kira-chat-workspace .btn-download-image {
    display: inline-flex !important;
    align-items: center !important;
    background: rgba(200, 121, 65, 0.12) !important;
    border: 1px solid rgba(200, 121, 65, 0.25) !important;
    color: var(--ka-primary) !important;
    font-size: 13px !important;
    font-weight: 600 !important;
    padding: 8px 16px !important;
    border-radius: 20px !important;
    cursor: pointer !important;
    transition: var(--ka-transition) !important;
    box-shadow: none !important;
}

#kira-chat-workspace .btn-download-image:hover:not(:disabled) {
    background: var(--ka-gradient) !important;
    color: var(--ka-white) !important;
    border-color: transparent !important;
    box-shadow: 0 4px 12px rgba(200, 121, 65, 0.2) !important;
}

#kira-chat-workspace .btn-download-image:disabled {
    opacity: 0.6 !important;
    cursor: not-allowed !important;
}