/* ==========================================================================
   Init Chat Engine - Enhanced Dark Mode Support v1.2.0
   ========================================================================== */

/* CSS Variables for easy theming */
:root {
    --init-chat-primary: #0073aa;
    --init-chat-primary-hover: #005f8d;
    --init-chat-primary-light: #e7f3ff;
    --init-chat-secondary: #6c757d;
    --init-chat-success: #28a745;
    --init-chat-danger: #dc3545;
    --init-chat-warning: #ffc107;
    --init-chat-info: #17a2b8;
    --init-chat-light: #f8f9fa;
    --init-chat-dark: #343a40;
    --init-chat-border: #e1e5ea;
    --init-chat-shadow: 0 6px 20px rgba(0, 0, 0, 0.08);
    --init-chat-radius: 12px;
    --init-chat-radius-sm: 8px;
    --init-chat-font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
    --init-chat-transition: all 0.2s ease;
    
    /* Light theme colors */
    --init-chat-bg-primary: #ffffff;
    --init-chat-bg-secondary: #f8f9fa;
    --init-chat-bg-tertiary: #f7f9fb;
    --init-chat-text-primary: #343a40;
    --init-chat-text-secondary: #6c757d;
    --init-chat-text-muted: #868e96;
    --init-chat-input-bg: #f8f9fa;
    --init-chat-input-border: #e9ecef;
    --init-chat-message-bg: #ffffff;
    --init-chat-message-shadow: 0 1px 3px rgba(0, 0, 0, 0.1);
    --init-chat-scrollbar-track: #f1f1f1;
    --init-chat-scrollbar-thumb: #c1c1c1;
    --init-chat-scrollbar-thumb-hover: #a8a8a8;
}

/* Dark theme variables */
.init-chatbox-theme-dark {
    --init-chat-primary: #4a9eff;
    --init-chat-primary-hover: #3d8bdb;
    --init-chat-primary-light: #1a2332;
    --init-chat-secondary: #a0aec0;
    --init-chat-success: #48bb78;
    --init-chat-danger: #f56565;
    --init-chat-warning: #ed8936;
    --init-chat-info: #4299e1;
    --init-chat-light: #2d3748;
    --init-chat-dark: #e2e8f0;
    --init-chat-border: #4a5568;
    --init-chat-shadow: 0 6px 20px rgba(0, 0, 0, 0.3);
    
    /* Dark theme specific colors */
    --init-chat-bg-primary: #1a202c;
    --init-chat-bg-secondary: #2d3748;
    --init-chat-bg-tertiary: #2a3441;
    --init-chat-text-primary: #e2e8f0;
    --init-chat-text-secondary: #a0aec0;
    --init-chat-text-muted: #718096;
    --init-chat-input-bg: #2d3748;
    --init-chat-input-border: #4a5568;
    --init-chat-message-bg: #2d3748;
    --init-chat-message-shadow: 0 1px 3px rgba(0, 0, 0, 0.3);
    --init-chat-scrollbar-track: #2d3748;
    --init-chat-scrollbar-thumb: #4a5568;
    --init-chat-scrollbar-thumb-hover: #718096;
}

.ice-hidden {
    display: none !important;
}

/* ==========================================================================
   Base Wrapper & Container - ENHANCED DARK MODE
   ========================================================================== */

.init-chatbox-wrapper {
    max-width: 500px;
    margin: 40px auto;
    background-color: var(--init-chat-bg-primary);
    color: var(--init-chat-text-primary);
    border-radius: var(--init-chat-radius);
    box-shadow: var(--init-chat-shadow);
    overflow: hidden;
    font-family: var(--init-chat-font-family);
    display: flex;
    flex-direction: column;
    position: relative;
    transition: var(--init-chat-transition);
    border: 1px solid var(--init-chat-border);
}

.init-chatbox-wrapper:hover {
    box-shadow: 0 8px 30px rgba(0, 0, 0, 0.12);
}

/* Enhanced dark theme support */
.init-chatbox-theme-dark.init-chatbox-wrapper:hover {
    box-shadow: 0 8px 30px rgba(0, 0, 0, 0.5);
}

.init-chatbox-theme-minimal {
    box-shadow: none;
    border: 1px solid var(--init-chat-border);
}

.init-chatbox-theme-rounded {
    border-radius: 24px;
}

/* ==========================================================================
   Header - DARK MODE ENHANCED
   ========================================================================== */

.init-chatbox-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 16px 20px;
    background: linear-gradient(135deg, var(--init-chat-primary), var(--init-chat-primary-hover));
    color: white;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.init-chatbox-theme-dark .init-chatbox-header {
    border-bottom: 1px solid var(--init-chat-border);
}

.init-chatbox-title {
    margin: 0;
    font-size: 16px;
    font-weight: 600;
    color: white;
    text-shadow: 0 1px 2px rgba(0, 0, 0, 0.1);
}

.init-chatbox-status {
    display: flex;
    align-items: center;
    gap: 8px;
}

.init-chatbox-online-count {
    display: flex;
    align-items: center;
    gap: 6px;
    font-size: 12px;
    color: rgba(255, 255, 255, 0.9);
}

.init-chatbox-status-indicator {
    width: 8px;
    height: 8px;
    background: #28a745;
    border-radius: 50%;
    animation: pulse 2s infinite;
}

@keyframes pulse {
    0% { opacity: 1; }
    50% { opacity: 0.5; }
    100% { opacity: 1; }
}

/* ==========================================================================
   Messages Area - FULL DARK MODE SUPPORT
   ========================================================================== */

.init-chatbox-messages {
    overflow-y: auto;
    padding: 16px;
    background: linear-gradient(to bottom, var(--init-chat-bg-tertiary), var(--init-chat-bg-primary));
    border-bottom: 1px solid var(--init-chat-border);
    position: relative;
    padding-bottom: 20px;
}

.init-chatbox-messages::-webkit-scrollbar {
    width: 6px;
}

.init-chatbox-messages::-webkit-scrollbar-track {
    background: var(--init-chat-scrollbar-track);
    border-radius: 3px;
}

.init-chatbox-messages::-webkit-scrollbar-thumb {
    background: var(--init-chat-scrollbar-thumb);
    border-radius: 3px;
    transition: var(--init-chat-transition);
}

.init-chatbox-messages::-webkit-scrollbar-thumb:hover {
    background: var(--init-chat-scrollbar-thumb-hover);
}

.init-chatbox-messages.shrink {
    height: 115px;
    min-height: 115px;
    max-height: 115px;
}

.init-chatbox-messages.expand {
    height: 350px;
    min-height: 350px;
    max-height: 350px;
}

/* Special case: when login required, make messages smaller */
.init-chatbox-wrapper:has(.init-chatbox-login-required) .init-chatbox-messages {
    height: 280px !important;
    min-height: 280px !important;
    max-height: 280px !important;
}

/* Loading State - DARK MODE */
.init-chatbox-loading {
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 30px 20px;
    color: var(--init-chat-text-secondary);
    gap: 12px;
    flex-direction: column;
}

.init-chatbox-loading-spinner {
    width: 24px;
    height: 24px;
    border: 3px solid var(--init-chat-border);
    border-top: 3px solid var(--init-chat-primary);
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

@keyframes spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

/* Empty State - DARK MODE */
.init-chatbox-empty {
    text-align: center;
    color: var(--init-chat-text-secondary);
    padding: 20px;
    background: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24" fill="%23e1e5ea"><path d="M20 2H4c-1.1 0-2 .9-2 2v12c0 1.1.9 2 2 2h4l4 4 4-4h4c1.1 0 2-.9 2-2V4c0-1.1-.9-2-2-2z"/></svg>') no-repeat center top;
    background-size: 48px 48px;
    padding-top: 60px;
}

.init-chatbox-theme-dark .init-chatbox-empty {
    background: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24" fill="%234a5568"><path d="M20 2H4c-1.1 0-2 .9-2 2v12c0 1.1.9 2 2 2h4l4 4 4-4h4c1.1 0 2-.9 2-2V4c0-1.1-.9-2-2-2z"/></svg>') no-repeat center top;
    background-size: 48px 48px;
}

/* ==========================================================================
   Individual Messages - ENHANCED DARK MODE
   ========================================================================== */

.init-chatbox-message {
    margin-bottom: 16px;
    opacity: 1;
    transform: translateY(0);
}

.init-chatbox-message-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 8px;
    gap: 10px;
}

.init-chatbox-meta {
    display: flex;
    align-items: center;
    gap: 8px;
    flex: 1;
    min-width: 0;
}

.init-chatbox-avatar {
    width: 32px;
    height: 32px;
    border-radius: 50%;
    object-fit: cover;
    flex-shrink: 0;
    border: 2px solid var(--init-chat-bg-primary);
    box-shadow: var(--init-chat-message-shadow);
    transition: var(--init-chat-transition);
}

.init-chatbox-avatar:hover {
    transform: scale(1.05);
}

.init-chatbox-author {
    font-weight: 600;
    color: var(--init-chat-text-primary);
    text-transform: capitalize;
    font-size: 14px;
    flex: 1;
    min-width: 0;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.init-chatbox-meta-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex: 1;
}

.init-chatbox-meta-time {
    color: var(--init-chat-text-secondary);
    font-size: 12px;
    white-space: nowrap;
    flex-shrink: 0;
    font-weight: 400;
}

.init-chatbox-message-body {
    background: var(--init-chat-message-bg);
    padding: 12px 16px;
    border-radius: var(--init-chat-radius-sm);
    color: var(--init-chat-text-primary);
    word-break: break-word;
    line-height: 1.5;
    box-shadow: var(--init-chat-message-shadow);
    border: 1px solid var(--init-chat-border);
    position: relative;
    transition: var(--init-chat-transition);
}

.init-chatbox-message-body:hover {
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.15);
}

.init-chatbox-theme-dark .init-chatbox-message-body:hover {
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.4);
}

/* Current user messages */
.init-chatbox-message.current-user .init-chatbox-message-body {
    background: linear-gradient(135deg, var(--init-chat-primary), var(--init-chat-primary-hover));
    color: white;
    border-color: var(--init-chat-primary);
    margin-left: 20px;
}

.init-chatbox-message.current-user .init-chatbox-author {
    color: var(--init-chat-primary);
    font-weight: 700;
}

/* Guest messages */
.init-chatbox-message.guest-user .init-chatbox-author {
    color: var(--init-chat-text-secondary);
    font-style: italic;
}

.init-chatbox-message.guest-user .init-chatbox-author::after {
    content: " (guest)";
    font-size: 11px;
    opacity: 0.7;
}

/* ==========================================================================
   Load More Button - DARK MODE
   ========================================================================== */

.init-chatbox-load-more {
    text-align: center;
    padding: 10px;
    border-bottom: 1px solid var(--init-chat-border);
    background: linear-gradient(to bottom, var(--init-chat-bg-tertiary), var(--init-chat-bg-primary));
    position: sticky;
    top: 0;
    z-index: 10;
}

.init-chatbox-load-more-btn {
    background: transparent;
    color: var(--init-chat-primary);
    border: 1px solid var(--init-chat-primary);
    padding: 6px 12px;
    border-radius: 16px;
    cursor: pointer;
    font-size: 11px;
    transition: var(--init-chat-transition);
    font-weight: 500;
    min-height: 28px;
}

.init-chatbox-load-more-btn:hover {
    background: var(--init-chat-primary);
    color: white;
    transform: translateY(-1px);
}

.init-chatbox-load-more-btn:disabled {
    opacity: 0.5;
    cursor: not-allowed;
    transform: none;
}

.init-chatbox-load-more-btn:disabled:hover {
    background: transparent;
    color: var(--init-chat-primary);
}

/* ==========================================================================
   Typing Indicator - DARK MODE
   ========================================================================== */

.init-chatbox-typing {
    padding: 8px 16px;
    background: rgba(74, 158, 255, 0.1);
    border-radius: var(--init-chat-radius-sm);
    margin: 8px 0;
    opacity: 1;
}

.init-chatbox-theme-dark .init-chatbox-typing {
    background: rgba(74, 158, 255, 0.15);
}

.init-chatbox-typing-indicator {
    display: flex;
    align-items: center;
    gap: 8px;
    color: var(--init-chat-text-secondary);
    font-size: 12px;
    font-style: italic;
}

.init-chatbox-typing-dots {
    display: flex;
    gap: 3px;
}

.init-chatbox-typing-dots span {
    width: 4px;
    height: 4px;
    background: var(--init-chat-primary);
    border-radius: 50%;
    animation: typingSimple 1.4s infinite ease-in-out;
}

.init-chatbox-typing-dots span:nth-child(1) { animation-delay: -0.32s; }
.init-chatbox-typing-dots span:nth-child(2) { animation-delay: -0.16s; }

@keyframes typingSimple {
    0%, 80%, 100% { 
        transform: scale(0.8); 
        opacity: 0.5; 
    }
    40% { 
        transform: scale(1.2); 
        opacity: 1; 
    }
}

/* ==========================================================================
   Connection Status - DARK MODE
   ========================================================================== */

.init-chatbox-connection-status {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    background: rgba(0, 0, 0, 0.8);
    color: white;
    padding: 8px 16px;
    border-radius: 20px;
    font-size: 12px;
    z-index: 100;
    opacity: 1;
}

.init-chatbox-theme-dark .init-chatbox-connection-status {
    background: rgba(26, 32, 44, 0.9);
    border: 1px solid var(--init-chat-border);
}

.init-chatbox-connection-status.reconnecting {
    background: var(--init-chat-warning);
    color: var(--init-chat-dark);
}

.init-chatbox-connection-status.connected {
    background: var(--init-chat-success);
}

/* ==========================================================================
   Form Styles - ENHANCED DARK MODE
   ========================================================================== */

.init-chatbox-input-wrapper {
    background: var(--init-chat-bg-primary);
    border-top: 1px solid var(--init-chat-border);
    position: relative;
    z-index: 5;
    display: block !important;
    visibility: visible !important;
    min-height: 60px;
    overflow: hidden;
    border-bottom-left-radius: var(--init-chat-radius);
    border-bottom-right-radius: var(--init-chat-radius);
}

.init-chatbox-form {
    padding: 0;
    margin: 0;
}

.init-chatbox-input-group {
    display: flex;
    gap: 8px;
    padding: 16px;
    align-items: flex-end;
}

.init-chatbox-input-name,
.init-chatbox-input-message {
    padding: 12px 16px;
    border: 2px solid var(--init-chat-input-border);
    border-radius: 24px;
    outline: none;
    flex: 1;
    transition: var(--init-chat-transition);
    font-size: 14px;
    background: var(--init-chat-input-bg);
    color: var(--init-chat-text-primary);
    resize: none;
    font-family: inherit;
}

.init-chatbox-input-message {
    min-height: 20px;
    max-height: 100px;
    line-height: 1.4;
}

.init-chatbox-input-name::placeholder,
.init-chatbox-input-message::placeholder {
    color: var(--init-chat-text-muted);
}

.init-chatbox-input-name:focus,
.init-chatbox-input-message:focus {
    border-color: var(--init-chat-primary);
    background: var(--init-chat-bg-primary);
    box-shadow: 0 0 0 3px rgba(74, 158, 255, 0.1);
}

.init-chatbox-theme-dark .init-chatbox-input-name:focus,
.init-chatbox-theme-dark .init-chatbox-input-message:focus {
    box-shadow: 0 0 0 3px rgba(74, 158, 255, 0.2);
}

.init-chatbox-submit {
    background: linear-gradient(135deg, var(--init-chat-primary), var(--init-chat-primary-hover));
    color: white;
    padding: 12px 20px;
    border: none;
    border-radius: 24px;
    cursor: pointer;
    transition: var(--init-chat-transition);
    white-space: nowrap;
    font-weight: 600;
    font-size: 14px;
    display: flex;
    align-items: center;
    gap: 6px;
    box-shadow: 0 2px 4px rgba(74, 158, 255, 0.2);
}

.init-chatbox-submit:hover {
    transform: translateY(-1px);
    box-shadow: 0 4px 12px rgba(74, 158, 255, 0.3);
}

.init-chatbox-submit:active {
    transform: translateY(0);
}

.init-chatbox-submit:disabled {
    background: var(--init-chat-secondary);
    cursor: not-allowed;
    transform: none;
    box-shadow: none;
    opacity: 0.6;
}

.init-chatbox-submit-icon {
    font-size: 16px;
    line-height: 1;
}

/* ==========================================================================
   Input Info & Character Count - DARK MODE
   ========================================================================== */

.init-chatbox-input-info {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0 16px 12px;
    font-size: 11px;
    color: var(--init-chat-text-secondary);
}

.init-chatbox-char-count {
    transition: var(--init-chat-transition);
}

.init-chatbox-char-count.warning {
    color: var(--init-chat-warning);
    font-weight: 600;
}

.init-chatbox-char-count.danger {
    color: var(--init-chat-danger);
    font-weight: 600;
}

.init-chatbox-rate-limit {
    color: var(--init-chat-danger);
    font-weight: 600;
    opacity: 1;
}

/* ==========================================================================
   Status Indicators - DARK MODE
   ========================================================================== */

.init-chatbox-mini-status {
    padding: 8px 16px;
    background: rgba(74, 158, 255, 0.05);
    border-bottom: 1px solid var(--init-chat-border);
}

.init-chatbox-theme-dark .init-chatbox-mini-status {
    background: rgba(74, 158, 255, 0.1);
}

.init-chatbox-online-indicator {
    display: flex;
    align-items: center;
    gap: 6px;
    font-size: 12px;
    color: var(--init-chat-text-secondary);
}

.init-chatbox-status-dot {
    width: 6px;
    height: 6px;
    background: var(--init-chat-success);
    border-radius: 50%;
    animation: pulse 2s infinite;
}

/* ==========================================================================
   Guest Interface - DARK MODE
   ========================================================================== */

.init-chatbox-guest-wrapper {
    background: var(--init-chat-bg-primary);
    border-top: 1px solid var(--init-chat-border);
    border-bottom-left-radius: var(--init-chat-radius);
    border-bottom-right-radius: var(--init-chat-radius);
    overflow: hidden;
}

.init-chatbox-name-form {
    padding: 24px;
    text-align: center;
    background: linear-gradient(135deg, var(--init-chat-bg-secondary), var(--init-chat-bg-primary));
}

.init-chatbox-name-header {
    margin-bottom: 20px;
}

.init-chatbox-name-header h4 {
    margin: 0 0 8px 0;
    font-size: 18px;
    color: var(--init-chat-text-primary);
    font-weight: 600;
}

.init-chatbox-name-header p {
    margin: 0;
    color: var(--init-chat-text-secondary);
    font-size: 14px;
}

.init-chatbox-name-input-group {
    display: flex;
    gap: 12px;
    margin-bottom: 16px;
    flex-wrap: wrap;
}

.init-chatbox-guest-notice {
    color: var(--init-chat-text-secondary);
    font-size: 12px;
    line-height: 1.4;
    display: block;
    margin: 0;
}

/* User Info for Active Guest - DARK MODE */
.init-chatbox-user-info {
    padding: 12px 16px;
    background: var(--init-chat-bg-secondary);
    border-bottom: 1px solid var(--init-chat-border);
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 10px;
}

.init-chatbox-current-user {
    display: flex;
    align-items: center;
    gap: 8px;
    flex: 1;
}

.init-chatbox-user-label {
    color: var(--init-chat-text-secondary);
    font-size: 12px;
}

.init-chatbox-user-name {
    color: var(--init-chat-primary);
    font-weight: 600;
    font-size: 14px;
}

.init-chatbox-change-name {
    background: none;
    color: var(--init-chat-primary);
    border: 1px solid var(--init-chat-primary);
    padding: 4px 8px;
    border-radius: 12px;
    cursor: pointer;
    font-size: 11px;
    transition: var(--init-chat-transition);
    display: flex;
    align-items: center;
    gap: 4px;
}

.init-chatbox-change-name:hover {
    background: var(--init-chat-primary);
    color: white;
}

.init-chatbox-change-icon {
    font-size: 10px;
}

/* ==========================================================================
   Login Required - ENHANCED DARK MODE
   ========================================================================== */

.init-chatbox-login-required {
    display: flex !important;
    align-items: center;
    gap: 16px;
    padding: 24px;
    background: linear-gradient(135deg, var(--init-chat-bg-secondary), var(--init-chat-bg-primary));
    text-align: left;
    border-top: 1px solid var(--init-chat-border);
    min-height: 80px;
    position: relative;
    z-index: 10;
    visibility: visible !important;
    opacity: 1 !important;
}

.init-chatbox-input-wrapper .init-chatbox-login-required {
    margin: 0;
    border-radius: 0;
    border-top: 1px solid var(--init-chat-border);
}

.init-chatbox-login-icon {
    font-size: 32px;
    opacity: 0.7;
    flex-shrink: 0;
    color: var(--init-chat-text-secondary);
}

.init-chatbox-login-content {
    flex: 1;
}

.init-chatbox-login-content p {
    margin: 0 0 8px 0;
    color: var(--init-chat-text-primary);
    font-weight: 500;
    font-size: 14px;
}

.init-chatbox-login-content small {
    color: var(--init-chat-text-secondary);
    font-size: 12px;
    display: block;
}

.init-chatbox-login-required a {
    color: var(--init-chat-primary);
    text-decoration: none;
    font-weight: 600;
    border-bottom: 1px solid transparent;
    transition: var(--init-chat-transition);
}

.init-chatbox-login-required a:hover {
    color: var(--init-chat-primary-hover);
    border-bottom-color: var(--init-chat-primary-hover);
}

/* ==========================================================================
   Error & Success Messages - DARK MODE
   ========================================================================== */

.init-chatbox-error,
.init-chatbox-success {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 12px 16px;
    margin: 12px 16px;
    border-radius: var(--init-chat-radius-sm);
    font-size: 13px;
    font-weight: 500;
    opacity: 1;
    transform: translateY(0);
}

.init-chatbox-error {
    background: #fff5f5;
    color: var(--init-chat-danger);
    border: 1px solid #fed7d7;
}

.init-chatbox-theme-dark .init-chatbox-error {
    background: rgba(245, 101, 101, 0.1);
    color: var(--init-chat-danger);
    border: 1px solid rgba(245, 101, 101, 0.3);
}

.init-chatbox-success {
    background: #f0fff4;
    color: var(--init-chat-success);
    border: 1px solid #9ae6b4;
}

.init-chatbox-theme-dark .init-chatbox-success {
    background: rgba(72, 187, 120, 0.1);
    color: var(--init-chat-success);
    border: 1px solid rgba(72, 187, 120, 0.3);
}

.init-chatbox-error-close {
    margin-left: auto;
    background: none;
    border: none;
    font-size: 16px;
    cursor: pointer;
    color: inherit;
    padding: 0;
    line-height: 1;
    transition: var(--init-chat-transition);
}

.init-chatbox-error-close:hover {
    transform: scale(1.1);
}

.init-chatbox-error-icon,
.init-chatbox-success-icon {
    font-size: 16px;
    line-height: 1;
}

/* ==========================================================================
   Footer & Powered By - DARK MODE
   ========================================================================== */

.init-chatbox-footer {
    padding: 8px 16px;
    background: var(--init-chat-bg-secondary);
    border-top: 1px solid var(--init-chat-border);
    text-align: center;
}

.init-chatbox-powered-by {
    font-size: 10px;
    color: var(--init-chat-text-secondary);
    margin: 0;
}

.init-chatbox-powered-by a {
    color: var(--init-chat-primary);
    text-decoration: none;
    font-weight: 500;
}

.init-chatbox-powered-by a:hover {
    text-decoration: underline;
}

/* ==========================================================================
   Scroll to Bottom Button - DARK MODE
   ========================================================================== */

.init-chatbox-scroll-to-bottom {
    position: absolute;
    bottom: 120px;
    right: 16px;
    background: var(--init-chat-primary);
    color: white;
    border: none;
    padding: 8px 12px;
    border-radius: 20px;
    cursor: pointer;
    font-size: 12px;
    z-index: 1000;
    box-shadow: 0 2px 10px rgba(0,0,0,0.2);
    transition: var(--init-chat-transition);
}

.init-chatbox-theme-dark .init-chatbox-scroll-to-bottom {
    box-shadow: 0 2px 10px rgba(0,0,0,0.4);
}

.init-chatbox-scroll-to-bottom:hover {
    background: var(--init-chat-primary-hover);
    transform: translateY(-1px);
}

/* ==========================================================================
   Ban Message - DARK MODE
   ========================================================================== */

.init-chatbox-banned {
    border: 1px solid var(--init-chat-danger);
    border-radius: 8px;
    padding: 20px;
    background: rgba(245, 101, 101, 0.1);
    color: var(--init-chat-danger);
    text-align: center;
    max-width: 500px;
    margin: 20px auto;
}

.init-chatbox-theme-dark .init-chatbox-banned {
    background: rgba(245, 101, 101, 0.15);
    border-color: rgba(245, 101, 101, 0.5);
}

.init-chatbox-ban-notice {
    display: flex;
    align-items: center;
    gap: 15px;
    text-align: left;
}

.init-chatbox-ban-icon {
    font-size: 48px;
    line-height: 1;
}

.init-chatbox-ban-content h4 {
    margin: 0 0 10px 0;
    color: var(--init-chat-danger);
    font-size: 18px;
}

.init-chatbox-ban-content p {
    margin: 5px 0;
    line-height: 1.4;
    color: var(--init-chat-text-primary);
}

.init-chatbox-ban-content small {
    color: var(--init-chat-text-secondary);
    font-style: italic;
}

/* ==========================================================================
   Stats Widget - DARK MODE
   ========================================================================== */

.init-chat-stats-widget {
    background: var(--init-chat-bg-secondary);
    border: 1px solid var(--init-chat-border);
    border-radius: 6px;
    padding: 15px;
    margin: 10px 0;
}

.init-chat-stat-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 8px 0;
    border-bottom: 1px solid var(--init-chat-border);
}

.init-chat-stat-item:last-child {
    border-bottom: none;
}

.init-chat-stat-label {
    font-weight: 600;
    color: var(--init-chat-text-primary);
}

.init-chat-stat-value {
    font-size: 18px;
    font-weight: bold;
    color: var(--init-chat-primary);
}

.init-chat-stat-detail {
    color: var(--init-chat-text-secondary);
    font-size: 12px;
    margin-left: 10px;
}

.init-chat-stats-basic .init-chat-stat-item {
    padding: 5px 0;
}

.init-chat-stats-basic .init-chat-stat-value {
    font-size: 16px;
}

/* ==========================================================================
   Responsive Design - ENHANCED FOR DARK MODE
   ========================================================================== */

@media (max-width: 768px) {
    .init-chatbox-wrapper {
        margin: 20px 16px;
        max-width: none;
        border-radius: var(--init-chat-radius-sm);
    }
    
    .init-chatbox-messages.expand {
        height: 300px;
        min-height: 300px;
        max-height: 300px;
    }
    
    .init-chatbox-input-group {
        padding: 12px;
        flex-wrap: wrap;
    }
    
    .init-chatbox-submit-text {
        display: none;
    }
    
    .init-chatbox-submit {
        padding: 12px;
        border-radius: 50%;
        min-width: 44px;
        min-height: 44px;
        justify-content: center;
    }
    
    .init-chatbox-name-input-group {
        flex-direction: column;
        gap: 8px;
    }
    
    .init-chatbox-user-info {
        flex-direction: column;
        align-items: flex-start;
        gap: 8px;
    }
    
    .init-chatbox-header {
        padding: 12px 16px;
    }
    
    .init-chatbox-title {
        font-size: 14px;
    }
}

@media (max-width: 480px) {
    .init-chatbox-wrapper {
        margin: 10px;
        border-radius: var(--init-chat-radius-sm);
    }
    
    .init-chatbox-messages.expand {
        height: 250px;
        min-height: 250px;
        max-height: 250px;
    }
    
    .init-chatbox-login-required {
        flex-direction: column;
        text-align: center;
        gap: 12px;
    }
    
    .init-chatbox-message-body {
        padding: 10px 12px;
    }
    
    .init-chatbox-name-form {
        padding: 16px;
    }
}

/* ==========================================================================
   Accessibility & Focus States - ENHANCED DARK MODE
   ========================================================================== */

/* High contrast mode support */
@media (prefers-contrast: high) {
    .init-chatbox-wrapper {
        border-width: 2px;
    }
    
    .init-chatbox-message-body {
        border-width: 2px;
    }
    
    .init-chatbox-submit {
        border: 2px solid var(--init-chat-primary);
    }
    
    .init-chatbox-theme-dark {
        --init-chat-border: #718096;
        --init-chat-text-secondary: #cbd5e0;
    }
}

/* Reduced motion support - Disable ALL animations */
@media (prefers-reduced-motion: reduce) {
    * {
        animation: none !important;
        transition: none !important;
    }
    
    .init-chatbox-typing-dots span {
        animation: none !important;
    }
    
    .init-chatbox-status-indicator {
        animation: none !important;
    }
    
    .init-chatbox-status-dot {
        animation: none !important;
    }
}

/* Dark mode OS preference support */
@media (prefers-color-scheme: dark) {
    .init-chatbox-wrapper:not(.init-chatbox-theme-dark):not(.init-chatbox-theme-light) {
        --init-chat-primary: #4a9eff;
        --init-chat-primary-hover: #3d8bdb;
        --init-chat-primary-light: #1a2332;
        --init-chat-secondary: #a0aec0;
        --init-chat-success: #48bb78;
        --init-chat-danger: #f56565;
        --init-chat-warning: #ed8936;
        --init-chat-info: #4299e1;
        --init-chat-light: #2d3748;
        --init-chat-dark: #e2e8f0;
        --init-chat-border: #4a5568;
        --init-chat-shadow: 0 6px 20px rgba(0, 0, 0, 0.3);
        
        --init-chat-bg-primary: #1a202c;
        --init-chat-bg-secondary: #2d3748;
        --init-chat-bg-tertiary: #2a3441;
        --init-chat-text-primary: #e2e8f0;
        --init-chat-text-secondary: #a0aec0;
        --init-chat-text-muted: #718096;
        --init-chat-input-bg: #2d3748;
        --init-chat-input-border: #4a5568;
        --init-chat-message-bg: #2d3748;
        --init-chat-message-shadow: 0 1px 3px rgba(0, 0, 0, 0.3);
        --init-chat-scrollbar-track: #2d3748;
        --init-chat-scrollbar-thumb: #4a5568;
        --init-chat-scrollbar-thumb-hover: #718096;
    }
}

/* ==========================================================================
   Performance Optimizations
   ========================================================================== */

/* Enable hardware acceleration for smooth scrolling */
.init-chatbox-messages {
    transform: translateZ(0);
    will-change: scroll-position;
}

/* Optimize message rendering */
.init-chatbox-message {
    contain: layout style;
}

/* Optimize input rendering */
.init-chatbox-input-message {
    contain: layout;
}

/* ==========================================================================
   Print Styles - DARK MODE AWARE
   ========================================================================== */

@media print {
    .init-chatbox-wrapper {
        box-shadow: none;
        border: 1px solid #000;
        background: white !important;
        color: black !important;
    }
    
    .init-chatbox-theme-dark.init-chatbox-wrapper {
        background: white !important;
        color: black !important;
    }
    
    .init-chatbox-theme-dark .init-chatbox-message-body,
    .init-chatbox-theme-dark .init-chatbox-messages {
        background: white !important;
        color: black !important;
    }
    
    .init-chatbox-form,
    .init-chatbox-input-wrapper,
    .init-chatbox-name-form,
    .init-chatbox-footer,
    .init-chatbox-scroll-to-bottom {
        display: none;
    }
    
    .init-chatbox-messages {
        height: auto !important;
        max-height: none !important;
        overflow: visible !important;
    }
}

/* ==========================================================================
   Additional Dark Mode Utilities
   ========================================================================== */

/* Theme transition for smooth switching */
.init-chatbox-wrapper,
.init-chatbox-wrapper * {
    transition: background-color 0.3s ease, color 0.3s ease, border-color 0.3s ease;
}

/* Dark mode toggle button (if needed) */
.init-chatbox-theme-toggle {
    position: absolute;
    top: 16px;
    right: 80px;
    background: none;
    border: 1px solid rgba(255, 255, 255, 0.3);
    color: white;
    padding: 4px 8px;
    border-radius: 12px;
    cursor: pointer;
    font-size: 10px;
    transition: var(--init-chat-transition);
}

.init-chatbox-theme-toggle:hover {
    background: rgba(255, 255, 255, 0.1);
}

/* Selection colors for dark mode */
.init-chatbox-theme-dark ::selection {
    background: rgba(74, 158, 255, 0.3);
    color: var(--init-chat-text-primary);
}

.init-chatbox-theme-dark ::-moz-selection {
    background: rgba(74, 158, 255, 0.3);
    color: var(--init-chat-text-primary);
}

.init-chatbox-disabled {
    pointer-events: none;
    opacity: 0.6;
}

/* ── Pinned Banner ─────────────────────────────────────────── */
.init-chatbox-pinned-banner {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;

    display: flex;
    align-items: stretch;

    background: #f7efdf;
    border-left: 3px solid #f59e0b;
    border-bottom: 1px solid rgba(245, 158, 11, 0.25);

    padding: 8px 12px;
    gap: 8px;
    font-size: 13px;
    line-height: 1.4;

    animation: pinBannerIn 0.2s ease;

    z-index: 20;

    box-shadow: 0 2px 6px rgba(0,0,0,0.06);
}

.init-chatbox-theme-dark .init-chatbox-pinned-banner {
    background: #2d3748;
}

@keyframes pinBannerIn {
    from { opacity: 0; transform: translateY(-6px); }
    to   { opacity: 1; transform: translateY(0); }
}

.init-chatbox-pinned-inner {
    display: flex;
    align-items: center;
    gap: 8px;
    width: 100%;
    min-width: 0;
}

.init-chatbox-pinned-icon {
    font-size: 14px;
    flex-shrink: 0;
    line-height: 1;
}

/* Vùng click chiếm phần lớn banner */
.init-chatbox-pinned-clickable {
    flex: 1 1 0;
    min-width: 0;
    display: flex;
    flex-direction: column;
    gap: 1px;
    cursor: pointer;
    padding: 2px 0;
    border-radius: 3px;
    transition: opacity 0.15s;
}
.init-chatbox-pinned-clickable:hover {
    opacity: 0.75;
}
.init-chatbox-pinned-clickable:focus-visible {
    outline: 2px solid #f59e0b;
    outline-offset: 2px;
}

.init-chatbox-pinned-label {
    font-size: 10px;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.06em;
    color: #b45309;
    line-height: 1;
}

.init-chatbox-pinned-text {
    color: inherit;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    max-width: 100%;
    opacity: 0.85;
    font-size: 13px;
}

.init-chatbox-pinned-unpin {
    flex-shrink: 0;
    background: none;
    border: 1px solid rgba(185, 28, 28, 0.3);
    border-radius: 4px;
    cursor: pointer;
    padding: 2px 7px;
    font-size: 11px;
    line-height: 1.5;
    color: #b91c1c;
    transition: background 0.15s, border-color 0.15s;
    white-space: nowrap;
}
.init-chatbox-pinned-unpin:hover {
    background: rgba(185, 28, 28, 0.1);
    border-color: #b91c1c;
}
.init-chatbox-pinned-unpin:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

/* ── Pin button on message hover ───────────────────────────── */
.init-chatbox-message {
    position: relative;
}

.init-chatbox-pin-btn {
    position: absolute;
    top: 6px;
    right: 6px;
    background: rgba(0, 0, 0, 0.55);
    color: #fff;
    border: none;
    border-radius: 4px;
    padding: 3px 7px;
    font-size: 11px;
    cursor: pointer;
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.15s, background 0.15s;
    z-index: 5;
    white-space: nowrap;
    line-height: 1.5;
}
.init-chatbox-pin-btn.pinned-active {
    background: rgba(245, 158, 11, 0.85);
}
.init-chatbox-message:hover .init-chatbox-pin-btn {
    opacity: 1;
    pointer-events: auto;
}
.init-chatbox-pin-btn:disabled {
    cursor: not-allowed;
    opacity: 0.5 !important;
}

/* ── Highlighted pinned message ────────────────────────────── */
.init-chatbox-message.pinned-highlight {
    outline: 2px solid rgba(245, 158, 11, 0.6);
    outline-offset: 2px;
    border-radius: 4px;
    animation: pinHighlight 1.4s ease forwards;
}
@keyframes pinHighlight {
    0%   { outline-color: rgba(245, 158, 11, 0.95); }
    100% { outline-color: rgba(245, 158, 11, 0.0); }
}

.init-chatbox-pinned-expand {
    flex-shrink: 0;
    background: none;
    border: none;
    cursor: pointer;
    outline: none;
    font-size: 14px;
    padding: 2px 6px;
    opacity: 0.7;
    transition: opacity 0.15s;
}

.init-chatbox-theme-dark .init-chatbox-pinned-expand {
    color: var(--init-chat-text-secondary);
}

.init-chatbox-pinned-expand:hover {
    opacity: 1;
}

.init-chatbox-pinned-text.expanded {
    white-space: normal;
    overflow: visible;
    text-overflow: unset;
}