/**
 * SU AI Assistant - Chatbot Frontend Styles
 * Crafted for Silliman University
 */

:root {
    --su-ai-primary: #00573F;
    --su-ai-secondary: #FFD700;
    --su-ai-primary-dark: #004030;
    --su-ai-primary-light: #e6f2ef;
    --su-ai-text: #1a1a1a;
    --su-ai-text-light: #6b7280;
    --su-ai-bg: #ffffff;
    --su-ai-bg-light: #f8fafc;
    --su-ai-border: #e2e8f0;
    --su-ai-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.25);
    --su-ai-radius: 20px;
    --su-ai-radius-sm: 12px;
}

/* Reset */
.su-ai-chatbot,
.su-ai-chatbot * {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, sans-serif;
}

/* Main Container */
.su-ai-chatbot {
    position: fixed;
    z-index: 999999;
    font-size: 14px;
    line-height: 1.5;
}

/* Position Classes */
.su-ai-position-bottom-right {
    bottom: 24px;
    right: 24px;
}

.su-ai-position-bottom-left {
    bottom: 24px;
    left: 24px;
}

.su-ai-position-top-right {
    top: 24px;
    right: 24px;
}

.su-ai-position-top-left {
    top: 24px;
    left: 24px;
}

/* Embedded Version */
.su-ai-chatbot-embedded {
    position: relative;
    width: 100%;
    max-width: 450px;
}

.su-ai-chatbot-embedded .su-ai-window {
    position: relative;
    border-radius: var(--su-ai-radius);
}

/* Toggle Button */
.su-ai-toggle {
    width: 64px;
    height: 64px;
    border-radius: 50%;
    border: none;
    background: linear-gradient(135deg, var(--su-ai-primary) 0%, var(--su-ai-primary-dark) 100%);
    color: #fff;
    cursor: pointer;
    box-shadow: 0 8px 24px rgba(0, 87, 63, 0.4);
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    overflow: hidden;
}

.su-ai-toggle::before {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(135deg, rgba(255,255,255,0.2) 0%, transparent 50%);
    border-radius: 50%;
}

.su-ai-toggle:hover {
    transform: scale(1.08);
    box-shadow: 0 12px 32px rgba(0, 87, 63, 0.5);
}

.su-ai-toggle:active {
    transform: scale(0.95);
}

.su-ai-toggle-icon {
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.3s ease;
}

.su-ai-toggle-close {
    position: absolute;
    opacity: 0;
    transform: rotate(-90deg) scale(0.5);
}

.su-ai-chatbot.su-ai-open .su-ai-toggle-open {
    opacity: 0;
    transform: rotate(90deg) scale(0.5);
}

.su-ai-chatbot.su-ai-open .su-ai-toggle-close {
    opacity: 1;
    transform: rotate(0) scale(1);
}

/* Notification Badge */
.su-ai-notification-badge {
    position: absolute;
    top: -4px;
    right: -4px;
    min-width: 22px;
    height: 22px;
    padding: 0 6px;
    background: #ef4444;
    color: #fff;
    font-size: 12px;
    font-weight: 600;
    border-radius: 11px;
    display: flex;
    align-items: center;
    justify-content: center;
    animation: su-ai-pulse 2s infinite;
}

@keyframes su-ai-pulse {
    0%, 100% { transform: scale(1); }
    50% { transform: scale(1.1); }
}

/* Chat Window */
.su-ai-window {
    position: absolute;
    width: 400px;
    height: 600px;
    max-height: calc(100vh - 120px);
    background: var(--su-ai-bg);
    border-radius: var(--su-ai-radius);
    box-shadow: var(--su-ai-shadow);
    display: flex;
    flex-direction: column;
    overflow: hidden;
    opacity: 0;
    visibility: hidden;
    transform: translateY(20px) scale(0.95);
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.su-ai-position-bottom-right .su-ai-window {
    bottom: 80px;
    right: 0;
    transform-origin: bottom right;
}

.su-ai-position-bottom-left .su-ai-window {
    bottom: 80px;
    left: 0;
    transform-origin: bottom left;
}

.su-ai-position-top-right .su-ai-window {
    top: 80px;
    right: 0;
    transform-origin: top right;
}

.su-ai-position-top-left .su-ai-window {
    top: 80px;
    left: 0;
    transform-origin: top left;
}

.su-ai-window-visible,
.su-ai-chatbot.su-ai-open .su-ai-window {
    opacity: 1;
    visibility: visible;
    transform: translateY(0) scale(1);
}

/* Header */
.su-ai-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 16px 20px;
    background: linear-gradient(135deg, var(--su-ai-primary) 0%, var(--su-ai-primary-dark) 100%);
    color: #fff;
    flex-shrink: 0;
}

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

.su-ai-avatar {
    width: 44px;
    height: 44px;
    border-radius: 50%;
    background: rgba(255,255,255,0.15);
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
}

.su-ai-avatar svg {
    width: 100%;
    height: 100%;
}

.su-ai-header-text {
    display: flex;
    flex-direction: column;
}

.su-ai-bot-name {
    font-size: 16px;
    font-weight: 600;
}

.su-ai-status {
    display: flex;
    align-items: center;
    gap: 6px;
    font-size: 12px;
    opacity: 0.9;
}

.su-ai-status-dot {
    width: 8px;
    height: 8px;
    background: #10b981;
    border-radius: 50%;
    animation: su-ai-blink 2s infinite;
}

@keyframes su-ai-blink {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.5; }
}

.su-ai-header-actions {
    display: flex;
    gap: 4px;
}

.su-ai-header-btn {
    width: 36px;
    height: 36px;
    border: none;
    background: rgba(255,255,255,0.1);
    color: #fff;
    border-radius: 8px;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.2s ease;
}

.su-ai-header-btn:hover {
    background: rgba(255,255,255,0.2);
}

/* Messages Container */
.su-ai-messages {
    flex: 1;
    overflow-y: auto;
    padding: 20px;
    display: flex;
    flex-direction: column;
    gap: 16px;
    background: var(--su-ai-bg-light);
}

.su-ai-messages::-webkit-scrollbar {
    width: 6px;
}

.su-ai-messages::-webkit-scrollbar-track {
    background: transparent;
}

.su-ai-messages::-webkit-scrollbar-thumb {
    background: var(--su-ai-border);
    border-radius: 3px;
}

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

/* Message Bubbles */
.su-ai-message {
    display: flex;
    gap: 10px;
    max-width: 85%;
    animation: su-ai-slideIn 0.3s ease;
}

@keyframes su-ai-slideIn {
    from {
        opacity: 0;
        transform: translateY(10px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.su-ai-message-user {
    align-self: flex-end;
    flex-direction: row-reverse;
}

.su-ai-message-bot {
    align-self: flex-start;
}

.su-ai-message-avatar {
    width: 32px;
    height: 32px;
    border-radius: 50%;
    flex-shrink: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
}

.su-ai-message-bot .su-ai-message-avatar {
    background: var(--su-ai-primary);
}

.su-ai-message-user .su-ai-message-avatar {
    background: var(--su-ai-border);
}

.su-ai-message-avatar svg {
    width: 100%;
    height: 100%;
}

.su-ai-message-content {
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.su-ai-message-bubble {
    padding: 12px 16px;
    border-radius: 16px;
    font-size: 14px;
    line-height: 1.5;
    word-wrap: break-word;
}

.su-ai-message-user .su-ai-message-bubble {
    background: linear-gradient(135deg, var(--su-ai-primary) 0%, var(--su-ai-primary-dark) 100%);
    color: #fff;
    border-bottom-right-radius: 4px;
}

.su-ai-message-bot .su-ai-message-bubble {
    background: var(--su-ai-bg);
    color: var(--su-ai-text);
    border: 1px solid var(--su-ai-border);
    border-bottom-left-radius: 4px;
    box-shadow: 0 2px 4px rgba(0,0,0,0.04);
}

.su-ai-message-time {
    font-size: 11px;
    color: var(--su-ai-text-light);
    padding: 0 4px;
}

.su-ai-message-user .su-ai-message-time {
    text-align: right;
}

/* Typing Indicator */
.su-ai-typing {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 0 20px 12px;
}

.su-ai-typing-avatar {
    width: 28px;
    height: 28px;
    border-radius: 50%;
    background: var(--su-ai-primary);
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
}

.su-ai-typing-indicator {
    display: flex;
    align-items: center;
    gap: 4px;
    padding: 12px 16px;
    background: var(--su-ai-bg);
    border: 1px solid var(--su-ai-border);
    border-radius: 16px;
    border-bottom-left-radius: 4px;
}

.su-ai-typing-indicator span {
    width: 8px;
    height: 8px;
    background: var(--su-ai-primary);
    border-radius: 50%;
    animation: su-ai-bounce 1.4s infinite ease-in-out;
}

.su-ai-typing-indicator span:nth-child(1) {
    animation-delay: -0.32s;
}

.su-ai-typing-indicator span:nth-child(2) {
    animation-delay: -0.16s;
}

@keyframes su-ai-bounce {
    0%, 80%, 100% {
        transform: scale(0.6);
        opacity: 0.4;
    }
    40% {
        transform: scale(1);
        opacity: 1;
    }
}

/* Input Area */
.su-ai-input-area {
    padding: 16px 20px;
    background: var(--su-ai-bg);
    border-top: 1px solid var(--su-ai-border);
    flex-shrink: 0;
}

.su-ai-form {
    display: flex;
    flex-direction: column;
}

.su-ai-input-wrapper {
    display: flex;
    align-items: flex-end;
    gap: 10px;
    background: var(--su-ai-bg-light);
    border: 2px solid var(--su-ai-border);
    border-radius: var(--su-ai-radius-sm);
    padding: 8px 8px 8px 16px;
    transition: all 0.2s ease;
}

.su-ai-input-wrapper:focus-within {
    border-color: var(--su-ai-primary);
    box-shadow: 0 0 0 3px var(--su-ai-primary-light);
}

.su-ai-input {
    flex: 1;
    border: none;
    background: transparent;
    font-size: 14px;
    color: var(--su-ai-text);
    resize: none;
    max-height: 120px;
    min-height: 24px;
    line-height: 1.5;
    outline: none;
    font-family: inherit;
}

.su-ai-input::placeholder {
    color: var(--su-ai-text-light);
}

.su-ai-send {
    width: 40px;
    height: 40px;
    border: none;
    background: var(--su-ai-primary);
    color: #fff;
    border-radius: 10px;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.2s ease;
    flex-shrink: 0;
}

.su-ai-send:hover:not(:disabled) {
    background: var(--su-ai-primary-dark);
    transform: scale(1.05);
}

.su-ai-send:disabled {
    background: var(--su-ai-border);
    cursor: not-allowed;
}

.su-ai-send svg {
    transition: transform 0.2s ease;
}

.su-ai-send:hover:not(:disabled) svg {
    transform: translateX(2px);
}

/* Powered By */
.su-ai-powered-by {
    text-align: center;
    padding-top: 12px;
    font-size: 11px;
    color: var(--su-ai-text-light);
}

.su-ai-powered-by strong {
    color: var(--su-ai-primary);
    font-weight: 600;
}

/* Quick Replies */
.su-ai-quick-replies {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    padding: 12px 20px;
    background: var(--su-ai-bg-light);
}

.su-ai-quick-reply {
    padding: 8px 16px;
    background: var(--su-ai-bg);
    border: 1px solid var(--su-ai-border);
    border-radius: 20px;
    font-size: 13px;
    color: var(--su-ai-primary);
    cursor: pointer;
    transition: all 0.2s ease;
}

.su-ai-quick-reply:hover {
    background: var(--su-ai-primary);
    color: #fff;
    border-color: var(--su-ai-primary);
}

/* Mobile Responsive */
@media (max-width: 480px) {
    .su-ai-chatbot-floating {
        bottom: 16px;
        right: 16px;
        left: 16px;
    }
    
    .su-ai-toggle {
        width: 56px;
        height: 56px;
    }
    
    .su-ai-window {
        position: fixed;
        width: 100%;
        height: 100%;
        max-height: 100%;
        top: 0 !important;
        left: 0 !important;
        right: 0 !important;
        bottom: 0 !important;
        border-radius: 0;
    }
    
    .su-ai-position-bottom-right .su-ai-window,
    .su-ai-position-bottom-left .su-ai-window,
    .su-ai-position-top-right .su-ai-window,
    .su-ai-position-top-left .su-ai-window {
        transform-origin: center;
    }
    
    .su-ai-header {
        padding: 12px 16px;
        border-radius: 0;
    }
    
    .su-ai-messages {
        padding: 16px;
    }
    
    .su-ai-input-area {
        padding: 12px 16px;
    }
}

/* Print Styles */
@media print {
    .su-ai-chatbot {
        display: none !important;
    }
}

/* Reduced Motion */
@media (prefers-reduced-motion: reduce) {
    .su-ai-toggle,
    .su-ai-window,
    .su-ai-message,
    .su-ai-toggle-icon,
    .su-ai-send,
    .su-ai-send svg {
        transition: none;
        animation: none;
    }
    
    .su-ai-typing-indicator span,
    .su-ai-status-dot,
    .su-ai-notification-badge {
        animation: none;
    }
}

/* Dark Mode Support (Optional - follows system preference) */
@media (prefers-color-scheme: dark) {
    .su-ai-chatbot[data-theme="auto"] {
        --su-ai-bg: #1e1e1e;
        --su-ai-bg-light: #2d2d2d;
        --su-ai-text: #e4e4e4;
        --su-ai-text-light: #9ca3af;
        --su-ai-border: #404040;
    }
}

/* Welcome Message Special Styling */
.su-ai-message-welcome .su-ai-message-bubble {
    background: linear-gradient(135deg, var(--su-ai-primary-light) 0%, #fff 100%);
    border: 1px solid var(--su-ai-primary);
}

/* Links in Messages */
.su-ai-message-bubble a {
    color: inherit;
    text-decoration: underline;
    text-underline-offset: 2px;
}

.su-ai-message-user .su-ai-message-bubble a {
    color: var(--su-ai-secondary);
}

/* Code in Messages */
.su-ai-message-bubble code {
    padding: 2px 6px;
    background: rgba(0,0,0,0.1);
    border-radius: 4px;
    font-family: 'Monaco', 'Menlo', monospace;
    font-size: 13px;
}

.su-ai-message-user .su-ai-message-bubble code {
    background: rgba(255,255,255,0.2);
}

/* Lists in Messages */
.su-ai-message-bubble ul,
.su-ai-message-bubble ol {
    margin: 8px 0;
    padding-left: 20px;
}

.su-ai-message-bubble li {
    margin: 4px 0;
}