/* KIITEC Chatbot Styles - Enhanced User UI/UX */
:root {
    --primary-color: #2E86AB;
    --primary-dark: #1e5f7a;
    --primary-light: #4a9bc7;
    --secondary-color: #f8f9fa;
    --accent-color: #ff6b35;
    --success-color: #28a745;
    --warning-color: #ffc107;
    --error-color: #dc3545;
    --text-color: #2c3e50;
    --text-light: #6c757d;
    --text-muted: #95a5a6;
    --border-color: #e9ecef;
    --border-light: #f1f3f4;
    --background: #ffffff;
    --background-light: #f8f9fa;
    --background-dark: #f1f3f4;
    --shadow: 0 8px 32px rgba(0, 0, 0, 0.12);
    --shadow-hover: 0 12px 48px rgba(0, 0, 0, 0.18);
    --shadow-light: 0 2px 8px rgba(0, 0, 0, 0.08);
    --shadow-medium: 0 4px 16px rgba(0, 0, 0, 0.1);
    --border-radius: 16px;
    --border-radius-sm: 8px;
    --border-radius-lg: 24px;
    --border-radius-xl: 32px;
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    --transition-fast: all 0.15s ease;
    --transition-slow: all 0.5s ease;
    --gradient-primary: linear-gradient(135deg, #2E86AB 0%, #4a9bc7 100%);
    --gradient-accent: linear-gradient(135deg, #ff6b35 0%, #ff8c42 100%);
    --gradient-bg: linear-gradient(135deg, #f8f9fa 0%, #e9ecef 100%);
    --gradient-success: linear-gradient(135deg, #28a745 0%, #20c997 100%);
    --gradient-warning: linear-gradient(135deg, #ffc107 0%, #fd7e14 100%);
    --gradient-error: linear-gradient(135deg, #dc3545 0%, #e83e8c 100%);
}

/* Container */
#kiitec-chatbot-container {
    position: fixed;
    z-index: 999999;
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
    font-size: 14px;
    line-height: 1.4;
}

/* Position variants */
.kiitec-chatbot-bottom-right {
    bottom: 20px;
    right: 20px;
}

.kiitec-chatbot-bottom-left {
    bottom: 20px;
    left: 20px;
}

.kiitec-chatbot-top-right {
    top: 20px;
    right: 20px;
}

.kiitec-chatbot-top-left {
    top: 20px;
    left: 20px;
}

/* Toggle Button - Enhanced User Experience */
.kiitec-chatbot-toggle {
    width: 68px;
    height: 68px;
    background: var(--gradient-primary);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    box-shadow: var(--shadow);
    transition: var(--transition);
    color: white;
    position: relative;
    overflow: hidden;
    border: 3px solid rgba(255, 255, 255, 0.2);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
}

.kiitec-chatbot-toggle::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(45deg, transparent 30%, rgba(255, 255, 255, 0.2) 50%, transparent 70%);
    transform: translateX(-100%);
    transition: transform 0.6s ease;
}

.kiitec-chatbot-toggle::after {
    content: '';
    position: absolute;
    top: -2px;
    left: -2px;
    right: -2px;
    bottom: -2px;
    background: var(--gradient-primary);
    border-radius: 50%;
    z-index: -1;
    opacity: 0;
    transition: var(--transition);
}

.kiitec-chatbot-toggle:hover::before {
    transform: translateX(100%);
}

.kiitec-chatbot-toggle:hover::after {
    opacity: 0.3;
    transform: scale(1.1);
}

.kiitec-chatbot-toggle:hover {
    background: var(--gradient-primary);
    transform: scale(1.1) translateY(-2px);
    box-shadow: var(--shadow-hover);
    border-color: rgba(255, 255, 255, 0.4);
}

.kiitec-chatbot-toggle:active {
    transform: scale(0.95) translateY(0);
    transition: var(--transition-fast);
}

/* Enhanced pulse animation for attention */
.kiitec-chatbot-toggle.pulse {
    animation: pulse-attention 2s infinite, float 3s ease-in-out infinite;
}

.kiitec-chatbot-toggle.pulse::after {
    animation: pulse-ring 2s infinite;
}

@keyframes pulse-attention {
    0% {
        box-shadow: 0 0 0 0 rgba(46, 134, 171, 0.7);
    }
    70% {
        box-shadow: 0 0 0 15px rgba(46, 134, 171, 0);
    }
    100% {
        box-shadow: 0 0 0 0 rgba(46, 134, 171, 0);
    }
}

@keyframes pulse-ring {
    0% {
        transform: scale(1);
        opacity: 0.3;
    }
    50% {
        transform: scale(1.2);
        opacity: 0.1;
    }
    100% {
        transform: scale(1.4);
        opacity: 0;
    }
}

@keyframes float {
    0%, 100% {
        transform: translateY(0);
    }
    50% {
        transform: translateY(-5px);
    }
}

/* Notification badge */
.kiitec-chatbot-notification {
    position: absolute;
    top: -5px;
    right: -5px;
    width: 20px;
    height: 20px;
    background: var(--gradient-error);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 10px;
    font-weight: bold;
    color: white;
    animation: bounce-in 0.5s ease;
    box-shadow: var(--shadow-light);
}

@keyframes bounce-in {
    0% {
        transform: scale(0);
    }
    50% {
        transform: scale(1.2);
    }
    100% {
        transform: scale(1);
    }
}

.kiitec-chatbot-icon,
.kiitec-chatbot-close {
    display: flex;
    align-items: center;
    justify-content: center;
}

/* Chat Window - Enhanced User Experience */
.kiitec-chatbot-window {
    position: absolute;
    bottom: 80px;
    right: 0;
    width: 400px;
    height: 540px;
    background: var(--background);
    border-radius: var(--border-radius-lg);
    box-shadow: var(--shadow);
    display: flex;
    flex-direction: column;
    overflow: hidden;
    animation: slideUp 0.5s cubic-bezier(0.4, 0, 0.2, 1);
    border: 1px solid var(--border-light);
    backdrop-filter: blur(15px);
    -webkit-backdrop-filter: blur(15px);
    position: relative;
}

.kiitec-chatbot-window::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(135deg, rgba(255, 255, 255, 0.1) 0%, rgba(255, 255, 255, 0.05) 100%);
    pointer-events: none;
    z-index: 1;
}

.kiitec-chatbot-window > * {
    position: relative;
    z-index: 2;
}

@keyframes slideUp {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* Position adjustments for different placements */
.kiitec-chatbot-bottom-left .kiitec-chatbot-window {
    right: auto;
    left: 0;
}

.kiitec-chatbot-top-right .kiitec-chatbot-window {
    bottom: auto;
    top: 80px;
}

.kiitec-chatbot-top-left .kiitec-chatbot-window {
    bottom: auto;
    top: 80px;
    right: auto;
    left: 0;
}

/* Header - Enhanced */
.kiitec-chatbot-header {
    background: var(--gradient-primary);
    color: white;
    padding: 20px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    position: relative;
    overflow: hidden;
}

.kiitec-chatbot-header::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(45deg, transparent 30%, rgba(255, 255, 255, 0.1) 50%, transparent 70%);
    animation: shimmer 3s infinite;
}

@keyframes shimmer {
    0% {
        transform: translateX(-100%);
    }
    100% {
        transform: translateX(100%);
    }
}

.kiitec-chatbot-header-info {
    display: flex;
    align-items: center;
    gap: 12px;
}

.kiitec-chatbot-avatar {
    width: 44px;
    height: 44px;
    background: rgba(255, 255, 255, 0.25);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    border: 2px solid rgba(255, 255, 255, 0.3);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    position: relative;
    z-index: 1;
}

.kiitec-chatbot-header-text {
    position: relative;
    z-index: 1;
}

.kiitec-chatbot-header-text h4 {
    margin: 0;
    font-size: 17px;
    font-weight: 700;
    text-shadow: 0 1px 2px rgba(0, 0, 0, 0.1);
}

.kiitec-chatbot-status {
    font-size: 12px;
    opacity: 0.9;
    display: flex;
    align-items: center;
    gap: 4px;
}

.kiitec-chatbot-status::before {
    content: '';
    width: 8px;
    height: 8px;
    background: var(--success-color);
    border-radius: 50%;
    animation: pulse-dot 2s infinite;
}

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

/* Messages - Enhanced User Experience */
.kiitec-chatbot-messages {
    flex: 1;
    padding: 24px;
    overflow-y: auto;
    display: flex;
    flex-direction: column;
    gap: 20px;
    background: linear-gradient(135deg, var(--background-light) 0%, #f1f3f4 100%);
    position: relative;
}

.kiitec-chatbot-messages::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 2px;
    background: linear-gradient(90deg, transparent, var(--primary-color), transparent);
    opacity: 0.3;
}

.kiitec-chatbot-messages::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    height: 20px;
    background: linear-gradient(to top, var(--background-light), transparent);
    pointer-events: none;
}

.kiitec-chatbot-message {
    display: flex;
    gap: 8px;
    max-width: 85%;
}

.kiitec-chatbot-message-user {
    align-self: flex-end;
    flex-direction: row-reverse;
}

.kiitec-chatbot-message-bot {
    align-self: flex-start;
}

.kiitec-chatbot-message-avatar {
    width: 36px;
    height: 36px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    border: 2px solid transparent;
    transition: var(--transition-fast);
}

.kiitec-chatbot-message-bot .kiitec-chatbot-message-avatar {
    background: var(--gradient-primary);
    color: white;
    box-shadow: var(--shadow-light);
}

.kiitec-chatbot-message-user .kiitec-chatbot-message-avatar {
    background: var(--gradient-accent);
    color: white;
    box-shadow: var(--shadow-light);
}

.kiitec-chatbot-message-content {
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.kiitec-chatbot-message-text {
    background: var(--background);
    padding: 16px 20px;
    border-radius: var(--border-radius-lg);
    word-wrap: break-word;
    color: var(--text-color);
    box-shadow: var(--shadow-light);
    border: 1px solid var(--border-light);
    position: relative;
    line-height: 1.6;
    font-size: 14px;
    transition: var(--transition);
}

.kiitec-chatbot-message-text::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(135deg, rgba(255, 255, 255, 0.1) 0%, transparent 100%);
    border-radius: var(--border-radius-lg);
    pointer-events: none;
}

.kiitec-chatbot-message-user .kiitec-chatbot-message-text {
    background: var(--gradient-primary);
    color: white;
    border-color: transparent;
    box-shadow: var(--shadow-medium);
    border-radius: var(--border-radius-lg) var(--border-radius-lg) var(--border-radius-sm) var(--border-radius-lg);
}

.kiitec-chatbot-message-user .kiitec-chatbot-message-text::before {
    background: linear-gradient(135deg, rgba(255, 255, 255, 0.2) 0%, transparent 100%);
}

.kiitec-chatbot-message-bot .kiitec-chatbot-message-text {
    background: var(--background);
    border-left: 4px solid var(--primary-color);
    border-radius: var(--border-radius-lg) var(--border-radius-lg) var(--border-radius-lg) var(--border-radius-sm);
    box-shadow: var(--shadow-light);
}

.kiitec-chatbot-message-bot .kiitec-chatbot-message-text:hover {
    box-shadow: var(--shadow-medium);
    transform: translateY(-1px);
}

/* Message status indicators */
.kiitec-chatbot-message-status {
    display: flex;
    align-items: center;
    gap: 4px;
    margin-top: 4px;
    font-size: 11px;
    opacity: 0.7;
}

.kiitec-chatbot-message-status.sent {
    color: var(--text-muted);
}

.kiitec-chatbot-message-status.delivered {
    color: var(--success-color);
}

.kiitec-chatbot-message-status.read {
    color: var(--primary-color);
}

.kiitec-chatbot-message-time {
    font-size: 11px;
    color: var(--text-light);
    padding: 0 8px;
}

.kiitec-chatbot-message-user .kiitec-chatbot-message-time {
    text-align: right;
}

/* Quick Actions - Enhanced */
.kiitec-chatbot-quick-actions {
    padding: 16px 20px;
    border-top: 1px solid var(--border-light);
    display: flex;
    gap: 10px;
    flex-wrap: wrap;
    background: var(--background);
    position: relative;
}

.kiitec-chatbot-quick-actions::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 1px;
    background: linear-gradient(90deg, transparent, var(--border-color), transparent);
}

.kiitec-chatbot-quick-btn {
    background: var(--background-light);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius-lg);
    padding: 8px 16px;
    font-size: 13px;
    font-weight: 500;
    cursor: pointer;
    transition: var(--transition);
    color: var(--text-color);
    position: relative;
    overflow: hidden;
}

.kiitec-chatbot-quick-btn::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(46, 134, 171, 0.1), transparent);
    transition: left 0.5s ease;
}

.kiitec-chatbot-quick-btn:hover::before {
    left: 100%;
}

.kiitec-chatbot-quick-btn:hover {
    background: var(--gradient-primary);
    color: white;
    border-color: var(--primary-color);
    transform: translateY(-2px);
    box-shadow: var(--shadow-light);
}

/* Input - Enhanced User Experience */
.kiitec-chatbot-input-container {
    padding: 24px;
    border-top: 1px solid var(--border-light);
    background: linear-gradient(135deg, var(--background) 0%, var(--background-light) 100%);
    position: relative;
}

.kiitec-chatbot-input-container::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 2px;
    background: linear-gradient(90deg, transparent, var(--primary-color), transparent);
    opacity: 0.3;
}

.kiitec-chatbot-input-wrapper {
    display: flex;
    gap: 12px;
    align-items: center;
    background: var(--background);
    border-radius: var(--border-radius-xl);
    padding: 6px;
    border: 2px solid var(--border-light);
    transition: var(--transition);
    box-shadow: var(--shadow-light);
    position: relative;
    overflow: hidden;
}

.kiitec-chatbot-input-wrapper::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(135deg, rgba(46, 134, 171, 0.05) 0%, transparent 100%);
    opacity: 0;
    transition: var(--transition);
}

.kiitec-chatbot-input-wrapper:focus-within {
    border-color: var(--primary-color);
    box-shadow: 0 0 0 4px rgba(46, 134, 171, 0.1), var(--shadow-medium);
    transform: translateY(-1px);
}

.kiitec-chatbot-input-wrapper:focus-within::before {
    opacity: 1;
}

#kiitec-chatbot-input {
    flex: 1;
    border: none;
    background: transparent;
    padding: 14px 18px;
    font-size: 15px;
    outline: none;
    color: var(--text-color);
    font-family: inherit;
    line-height: 1.4;
    resize: none;
    max-height: 120px;
    min-height: 20px;
}

#kiitec-chatbot-input::placeholder {
    color: var(--text-muted);
    font-style: italic;
}

#kiitec-chatbot-input:focus::placeholder {
    opacity: 0.7;
}

.kiitec-chatbot-send-btn {
    width: 48px;
    height: 48px;
    background: var(--gradient-primary);
    border: none;
    border-radius: 50%;
    color: white;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: var(--transition);
    box-shadow: var(--shadow-light);
    position: relative;
    overflow: hidden;
    flex-shrink: 0;
}

.kiitec-chatbot-send-btn::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(45deg, transparent 30%, rgba(255, 255, 255, 0.3) 50%, transparent 70%);
    transform: translateX(-100%);
    transition: transform 0.6s ease;
}

.kiitec-chatbot-send-btn::after {
    content: '';
    position: absolute;
    top: -2px;
    left: -2px;
    right: -2px;
    bottom: -2px;
    background: var(--gradient-primary);
    border-radius: 50%;
    z-index: -1;
    opacity: 0;
    transition: var(--transition);
}

.kiitec-chatbot-send-btn:hover::before {
    transform: translateX(100%);
}

.kiitec-chatbot-send-btn:hover::after {
    opacity: 0.3;
    transform: scale(1.1);
}

.kiitec-chatbot-send-btn:hover {
    background: var(--gradient-primary);
    transform: scale(1.08) translateY(-1px);
    box-shadow: var(--shadow-medium);
}

.kiitec-chatbot-send-btn:active {
    transform: scale(0.95) translateY(0);
    transition: var(--transition-fast);
}

.kiitec-chatbot-send-btn:disabled {
    opacity: 0.5;
    cursor: not-allowed;
    transform: none;
    background: var(--text-muted);
}

.kiitec-chatbot-send-btn:disabled:hover {
    transform: none;
    box-shadow: var(--shadow-light);
}

/* Typing indicator enhancement */
.kiitec-chatbot-typing {
    padding: 16px 20px;
    display: flex;
    align-items: center;
    gap: 12px;
    background: var(--background-light);
    border-top: 1px solid var(--border-light);
}

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

.kiitec-chatbot-typing-dots span {
    width: 8px;
    height: 8px;
    background: var(--primary-color);
    border-radius: 50%;
    animation: typing-dot 1.4s infinite ease-in-out;
}

.kiitec-chatbot-typing-dots span:nth-child(1) {
    animation-delay: -0.32s;
}

.kiitec-chatbot-typing-dots span:nth-child(2) {
    animation-delay: -0.16s;
}

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

/* Typing Indicator */
.kiitec-chatbot-typing {
    padding: 12px 16px;
    display: flex;
    align-items: center;
    gap: 8px;
    color: var(--text-light);
    font-size: 12px;
}

.kiitec-chatbot-typing-dots {
    display: flex;
    gap: 4px;
}

.kiitec-chatbot-typing-dots span {
    width: 6px;
    height: 6px;
    background: var(--text-light);
    border-radius: 50%;
    animation: typing 1.4s infinite ease-in-out;
}

.kiitec-chatbot-typing-dots span:nth-child(1) {
    animation-delay: -0.32s;
}

.kiitec-chatbot-typing-dots span:nth-child(2) {
    animation-delay: -0.16s;
}

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

/* Responsive Design - Enhanced */
@media (max-width: 480px) {
    .kiitec-chatbot-window {
        width: calc(100vw - 20px);
        height: calc(100vh - 100px);
        bottom: 80px;
        right: 10px;
        left: 10px;
        border-radius: var(--border-radius);
    }
    
    .kiitec-chatbot-bottom-left .kiitec-chatbot-window {
        right: 10px;
        left: 10px;
    }
    
    .kiitec-chatbot-top-right .kiitec-chatbot-window,
    .kiitec-chatbot-top-left .kiitec-chatbot-window {
        top: 80px;
        bottom: 10px;
        right: 10px;
        left: 10px;
    }
    
    .kiitec-chatbot-toggle {
        width: 56px;
        height: 56px;
    }
    
    .kiitec-chatbot-messages {
        padding: 16px;
    }
    
    .kiitec-chatbot-quick-actions {
        padding: 12px 16px;
    }
    
    .kiitec-chatbot-input-container {
        padding: 16px;
    }
}

/* Tablet adjustments */
@media (max-width: 768px) and (min-width: 481px) {
    .kiitec-chatbot-window {
        width: 360px;
        height: 500px;
    }
}

/* High DPI displays */
@media (-webkit-min-device-pixel-ratio: 2), (min-resolution: 192dpi) {
    .kiitec-chatbot-toggle,
    .kiitec-chatbot-send-btn {
        border-width: 0.5px;
    }
}

/* Scrollbar Styling */
.kiitec-chatbot-messages::-webkit-scrollbar {
    width: 4px;
}

.kiitec-chatbot-messages::-webkit-scrollbar-track {
    background: transparent;
}

.kiitec-chatbot-messages::-webkit-scrollbar-thumb {
    background: var(--border-color);
    border-radius: 2px;
}

.kiitec-chatbot-messages::-webkit-scrollbar-thumb:hover {
    background: var(--text-light);
}

/* Animation for new messages */
.kiitec-chatbot-message {
    animation: messageSlide 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}

@keyframes messageSlide {
    from {
        opacity: 0;
        transform: translateY(20px) scale(0.95);
    }
    to {
        opacity: 1;
        transform: translateY(0) scale(1);
    }
}

/* Accessibility improvements */
.kiitec-chatbot-toggle:focus,
.kiitec-chatbot-send-btn:focus,
.kiitec-chatbot-quick-btn:focus,
#kiitec-chatbot-input:focus {
    outline: 2px solid var(--primary-color);
    outline-offset: 2px;
}

/* Reduced motion support */
@media (prefers-reduced-motion: reduce) {
    .kiitec-chatbot-toggle,
    .kiitec-chatbot-send-btn,
    .kiitec-chatbot-quick-btn,
    .kiitec-chatbot-message,
    .kiitec-chatbot-window {
        animation: none;
        transition: none;
    }
    
    .kiitec-chatbot-toggle::before,
    .kiitec-chatbot-send-btn::before,
    .kiitec-chatbot-quick-btn::before {
        display: none;
    }
}

/* Dark mode support */
@media (prefers-color-scheme: dark) {
    :root {
        --background: #1a1a1a;
        --background-light: #2d2d2d;
        --text-color: #ffffff;
        --text-light: #b0b0b0;
        --text-muted: #808080;
        --border-color: #404040;
        --border-light: #333333;
        --secondary-color: #2d2d2d;
    }
}

/* Print styles */
@media print {
    #kiitec-chatbot-container {
        display: none !important;
    }
}

/* Loading state */
.kiitec-chatbot-loading .kiitec-chatbot-message-text {
    position: relative;
    overflow: hidden;
}

.kiitec-chatbot-loading .kiitec-chatbot-message-text::after {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.4), transparent);
    animation: loading 1.5s infinite;
}

@keyframes loading {
    0% {
        left: -100%;
    }
    100% {
        left: 100%;
    }
}