/* Reset and Base Styles */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    /* UGA Brand Colors */
    --uga-red: #BA0C2F;
    --uga-black: #000000;
    --uga-gray: #717073;
    --uga-light-gray: #F0F0F0;

    /* Theme Colors */
    --primary: #BA0C2F;
    --primary-dark: #8B0923;
    --secondary: #2C5F2D;
    --accent: #4A90E2;

    /* UI Colors */
    --bg-primary: #FFFFFF;
    --bg-secondary: #F8F9FA;
    --bg-tertiary: #E9ECEF;
    --text-primary: #212529;
    --text-secondary: #6C757D;
    --border: #DEE2E6;
    --shadow: rgba(0, 0, 0, 0.1);

    /* Message Colors */
    --user-bg: #E3F2FD;
    --bot-bg: #F5F5F5;
    --user-border: #2196F3;
    --bot-border: #E0E0E0;

    /* Spacing */
    --spacing-xs: 0.25rem;
    --spacing-sm: 0.5rem;
    --spacing-md: 1rem;
    --spacing-lg: 1.5rem;
    --spacing-xl: 2rem;

    /* Border Radius */
    --radius-sm: 4px;
    --radius-md: 8px;
    --radius-lg: 12px;
    --radius-full: 50%;

    /* Transitions */
    --transition: all 0.3s ease;
}

/* Dark Theme */
body.dark-theme {
    --bg-primary: #1A1A1A;
    --bg-secondary: #2D2D2D;
    --bg-tertiary: #3A3A3A;
    --text-primary: #E4E4E4;
    --text-secondary: #A0A0A0;
    --border: #444444;
    --user-bg: #1E3A5F;
    --bot-bg: #2D2D2D;
    --user-border: #2196F3;
    --bot-border: #444444;
}

/* Dark theme link colors */
body.dark-theme .message-content a {
    color: #60A5FA !important;  /* Lighter blue for dark theme */
    border-bottom-color: #60A5FA;
}

body.dark-theme .message-content a:hover {
    color: #93C5FD !important;  /* Even lighter on hover */
    border-bottom-color: #93C5FD;
    background: rgba(96, 165, 250, 0.15);
}

body.dark-theme .message-content a[href^="http"]::after {
    color: #60A5FA;  /* Blue arrow in dark mode */
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: var(--text-primary);
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: var(--spacing-md);
}

/* App Container */
.app-container {
    width: 100%;
    max-width: 900px;
    height: 85vh;
    background: var(--bg-primary);
    border-radius: var(--radius-lg);
    box-shadow: 0 20px 60px var(--shadow);
    display: flex;
    flex-direction: column;
    overflow: hidden;
}

/* Disclaimer Banner */
.disclaimer-banner {
    background: #FFF3CD;
    color: #856404;
    padding: var(--spacing-sm) var(--spacing-lg);
    border-bottom: 2px solid #FFC107;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-sm);
    font-size: 0.9rem;
    position: relative;
}

.disclaimer-banner i {
    color: #FF9800;
    font-size: 1rem;
}

.close-banner-btn {
    position: absolute;
    right: var(--spacing-md);
    background: transparent;
    border: none;
    color: #856404;
    cursor: pointer;
    padding: 4px 8px;
    font-size: 1.1rem;
    opacity: 0.7;
    transition: opacity 0.2s ease;
}

.close-banner-btn:hover {
    opacity: 1;
}

/* Header */
.header {
    background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
    color: white;
    padding: var(--spacing-lg);
    border-radius: var(--radius-lg) var(--radius-lg) 0 0;
}

.header-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo-section {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
}

.logo-section i {
    font-size: 2rem;
}

/* CAES Logo */
.caes-logo {
    height: 60px;
    width: 60px;
    object-fit: contain;
    display: block;
    margin-right: 10px;
}

.logo-section h1 {
    font-size: 1.5rem;
    font-weight: 600;
    margin: 0;
}

.subtitle {
    font-size: 0.875rem;
    opacity: 0.9;
    margin-top: 0.25rem;
}

.header-actions {
    display: flex;
    gap: var(--spacing-sm);
}

.btn-icon {
    background: rgba(255, 255, 255, 0.2);
    border: none;
    color: white;
    width: 40px;
    height: 40px;
    border-radius: var(--radius-full);
    cursor: pointer;
    transition: var(--transition);
    display: flex;
    align-items: center;
    justify-content: center;
}

.btn-icon:hover {
    background: rgba(255, 255, 255, 0.3);
    transform: scale(1.05);
}

/* Chat Container */
.chat-container {
    flex: 1;
    display: flex;
    flex-direction: column;
    overflow: hidden;
}

/* Messages Area */
.messages {
    flex: 1;
    overflow-y: auto;
    padding: var(--spacing-lg);
    background: var(--bg-secondary);
    scroll-behavior: smooth;
}

.messages::-webkit-scrollbar {
    width: 8px;
}

.messages::-webkit-scrollbar-track {
    background: var(--bg-tertiary);
}

.messages::-webkit-scrollbar-thumb {
    background: var(--border);
    border-radius: var(--radius-sm);
}

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

/* Message Styles */
.message {
    display: flex;
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-lg);
    animation: fadeIn 0.3s ease;
}

@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(10px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.message-avatar {
    width: 36px;
    height: 36px;
    border-radius: var(--radius-full);
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.bot-message .message-avatar {
    background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
    color: white;
}

.user-message .message-avatar {
    background: linear-gradient(135deg, var(--accent) 0%, #357ABD 100%);
    color: white;
}

.message-content {
    flex: 1;
    padding: var(--spacing-md) var(--spacing-lg);
    border-radius: var(--radius-md);
    max-width: 80%;
}

.bot-message .message-content {
    background: var(--bot-bg);
    border: 1px solid var(--bot-border);
    border-top-left-radius: 0;
}

.user-message {
    flex-direction: row-reverse;
}

.user-message .message-content {
    background: var(--user-bg);
    border: 1px solid var(--user-border);
    border-top-right-radius: 0;
    margin-left: auto;
}

/* Message Content Formatting */
.message-content h1,
.message-content h2,
.message-content h3 {
    margin-top: var(--spacing-md);
    margin-bottom: var(--spacing-sm);
    color: var(--primary);
}

.message-content p {
    margin-bottom: var(--spacing-sm);
    line-height: 1.6;
}

.message-content ul,
.message-content ol {
    margin: var(--spacing-sm) 0;
    padding-left: var(--spacing-lg);
}

.message-content li {
    margin-bottom: var(--spacing-xs);
    line-height: 1.6;
}

.message-content a {
    color: #2563EB !important;  /* Bright blue - always visible */
    text-decoration: none;
    border-bottom: 2px solid #2563EB;
    font-weight: 600;
    transition: var(--transition);
    padding: 0 2px;
    position: relative;
    padding-left: 20px;  /* Make room for the icon */
}

/* Add blue link icon BEFORE the link text */
.message-content a::before {
    content: "🔗";
    font-size: 1em;
    position: absolute;
    left: 0;
    top: 50%;
    transform: translateY(-50%);
}

.message-content a:hover {
    color: #1D4ED8 !important;  /* Darker blue on hover */
    border-bottom-color: #1D4ED8;
    background: rgba(37, 99, 235, 0.1);
    border-radius: 2px;
}

/* Add external arrow icon for source citations */
.message-content a[href^="http"]::after {
    content: " ↗";
    font-size: 0.9em;
    color: #2563EB;
    font-weight: bold;
    margin-left: 2px;
}

.message-content code {
    background: var(--bg-tertiary);
    padding: 2px 6px;
    border-radius: var(--radius-sm);
    font-family: 'Courier New', monospace;
    font-size: 0.9em;
}

.message-content pre {
    background: var(--bg-tertiary);
    padding: var(--spacing-md);
    border-radius: var(--radius-sm);
    overflow-x: auto;
    margin: var(--spacing-sm) 0;
}

.message-content blockquote {
    border-left: 4px solid var(--primary);
    padding-left: var(--spacing-md);
    margin: var(--spacing-sm) 0;
    color: var(--text-secondary);
}

/* Welcome Message */
.welcome-message .message-content {
    background: linear-gradient(135deg, #667eea15 0%, #764ba215 100%);
    border: 2px solid var(--primary);
}

/* Input Area */
.input-area {
    padding: var(--spacing-lg);
    background: var(--bg-primary);
    border-top: 1px solid var(--border);
}

.input-container {
    display: flex;
    gap: var(--spacing-md);
    align-items: flex-end;
}

.user-input {
    flex: 1;
    padding: var(--spacing-md);
    border: 2px solid var(--border);
    border-radius: var(--radius-md);
    resize: none;
    font-family: inherit;
    font-size: 1rem;
    background: var(--bg-secondary);
    color: var(--text-primary);
    transition: var(--transition);
    min-height: 44px;
    max-height: 120px;
}

.user-input:focus {
    outline: none;
    border-color: var(--primary);
    background: var(--bg-primary);
}

.send-btn {
    padding: var(--spacing-md);
    background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
    color: white;
    border: none;
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: var(--transition);
    width: 44px;
    height: 44px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.send-btn:hover:not(:disabled) {
    transform: scale(1.05);
    box-shadow: 0 4px 12px rgba(186, 12, 47, 0.3);
}

.send-btn:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

/* Input Hints */
.input-hints {
    display: flex;
    gap: var(--spacing-sm);
    margin-top: var(--spacing-sm);
    align-items: center;
    flex-wrap: wrap;
}

.hint {
    color: var(--text-secondary);
    font-size: 0.875rem;
}

.hint-btn {
    padding: var(--spacing-xs) var(--spacing-sm);
    background: var(--bg-tertiary);
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    font-size: 0.875rem;
    cursor: pointer;
    transition: var(--transition);
    color: var(--text-primary);
}

.hint-btn:hover {
    background: var(--primary);
    color: white;
    border-color: var(--primary);
}

/* Loading Indicator */
.loading-indicator {
    position: absolute;
    bottom: 140px;
    left: 50%;
    transform: translateX(-50%);
    background: white;
    padding: var(--spacing-md);
    border-radius: var(--radius-md);
    box-shadow: 0 4px 12px var(--shadow);
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
}

.loading-indicator.hidden {
    display: none;
}

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

.typing-dots span {
    width: 8px;
    height: 8px;
    background: var(--primary);
    border-radius: var(--radius-full);
    animation: bounce 1.4s infinite;
}

.typing-dots span:nth-child(2) {
    animation-delay: 0.2s;
}

.typing-dots span:nth-child(3) {
    animation-delay: 0.4s;
}

@keyframes bounce {
    0%, 60%, 100% {
        transform: translateY(0);
    }
    30% {
        transform: translateY(-10px);
    }
}

/* Error Notification */
.error-notification {
    position: absolute;
    top: var(--spacing-lg);
    right: var(--spacing-lg);
    background: #DC3545;
    color: white;
    padding: var(--spacing-md);
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    box-shadow: 0 4px 12px rgba(220, 53, 69, 0.3);
    animation: slideIn 0.3s ease;
}

.error-notification.hidden {
    display: none;
}

@keyframes slideIn {
    from {
        transform: translateX(100%);
    }
    to {
        transform: translateX(0);
    }
}

.error-notification button {
    background: none;
    border: none;
    color: white;
    cursor: pointer;
    padding: var(--spacing-xs);
}

/* Responsive Design */
@media (max-width: 768px) {
    .app-container {
        height: 100vh;
        max-width: 100%;
        border-radius: 0;
    }

    .header {
        border-radius: 0;
        padding: var(--spacing-md);
    }

    .logo-section h1 {
        font-size: 1.25rem;
    }

    .subtitle {
        display: none;
    }

    .message-content {
        max-width: 90%;
    }

    .input-hints {
        display: none;
    }
}

/* Print Styles */
@media print {
    .header-actions,
    .input-area,
    .loading-indicator,
    .error-notification {
        display: none;
    }

    body {
        background: white;
    }

    .app-container {
        box-shadow: none;
        height: auto;
    }
}
/* Dark theme disclaimer banner */
body.dark-theme .disclaimer-banner {
    background: #3E2723;
    color: #FFB74D;
    border-bottom-color: #FF6F00;
}

body.dark-theme .disclaimer-banner i {
    color: #FFA726;
}

body.dark-theme .close-banner-btn {
    color: #FFB74D;
}

/* Feedback Form */
.feedback-container {
    margin-top: var(--spacing-md);
    padding: var(--spacing-md);
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    animation: slideIn 0.3s ease;
}

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

.feedback-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: var(--spacing-md);
}

.feedback-title {
    font-weight: 600;
    color: var(--primary);
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
}

.feedback-close {
    background: none;
    border: none;
    color: var(--text-secondary);
    cursor: pointer;
    font-size: 18px;
    padding: 4px;
    transition: color 0.2s;
}

.feedback-close:hover {
    color: var(--text);
}

.feedback-question {
    margin-bottom: var(--spacing-md);
    font-size: 14px;
    color: var(--text-secondary);
}

.feedback-buttons {
    display: flex;
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-md);
    flex-wrap: wrap;
}

.feedback-btn {
    flex: 1;
    min-width: 100px;
    padding: var(--spacing-sm) var(--spacing-md);
    border: 2px solid var(--border);
    border-radius: var(--radius);
    background: var(--background);
    color: var(--text);
    cursor: pointer;
    transition: all 0.2s;
    text-align: center;
}

.feedback-btn:hover {
    border-color: var(--primary);
    transform: translateY(-1px);
}

.feedback-btn.selected {
    background: var(--primary);
    color: white;
    border-color: var(--primary);
}

.feedback-btn.selected.helpful {
    background: #10b981;
    border-color: #10b981;
}

.feedback-btn.selected.not-helpful {
    background: #ef4444;
    border-color: #ef4444;
}

.feedback-textarea {
    width: 100%;
    min-height: 80px;
    padding: var(--spacing-sm);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    background: var(--background);
    color: var(--text);
    font-family: inherit;
    resize: vertical;
    margin-bottom: var(--spacing-md);
}

.feedback-textarea:focus {
    outline: none;
    border-color: var(--primary);
}

.feedback-submit {
    background: var(--primary);
    color: white;
    border: none;
    padding: var(--spacing-sm) var(--spacing-lg);
    border-radius: var(--radius);
    cursor: pointer;
    font-weight: 500;
    transition: all 0.2s;
}

.feedback-submit:hover:not(:disabled) {
    transform: translateY(-1px);
    box-shadow: 0 4px 12px rgba(99, 102, 241, 0.3);
}

.feedback-submit:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

.feedback-success {
    text-align: center;
    color: #10b981;
    font-weight: 500;
    padding: var(--spacing-lg);
}

.feedback-success i {
    font-size: 48px;
    margin-bottom: var(--spacing-md);
}

/* ============================
   Menu Dropdown Styles
   ============================ */

.menu-container {
    position: relative;
}

.menu-dropdown {
    position: absolute;
    top: 100%;
    right: 0;
    margin-top: var(--spacing-sm);
    background: var(--bg-primary);
    border: 1px solid var(--border);
    border-radius: var(--radius-md);
    box-shadow: 0 4px 12px var(--shadow);
    min-width: 220px;
    overflow: hidden;
    z-index: 1000;
    opacity: 0;
    transform: translateY(-10px);
    transition: all 0.2s ease;
    pointer-events: none;
}

.menu-dropdown:not(.hidden) {
    opacity: 1;
    transform: translateY(0);
    pointer-events: all;
}

.menu-item {
    width: 100%;
    padding: var(--spacing-md) var(--spacing-lg);
    background: transparent;
    border: none;
    border-bottom: 1px solid var(--border);
    cursor: pointer;
    font-size: 0.9rem;
    font-weight: 500;
    color: var(--text-primary);
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    transition: all 0.2s ease;
    text-align: left;
}

.menu-item:last-child {
    border-bottom: none;
}

.menu-item:hover {
    background: var(--bg-secondary);
}

.menu-item i {
    width: 18px;
    color: var(--text-secondary);
}

.menu-item:hover i {
    color: var(--primary);
}

/* Special styling for delete action */
.menu-item:last-child:hover {
    background: rgba(220, 38, 38, 0.1);
    color: #DC2626;
}

.menu-item:last-child:hover i {
    color: #DC2626;
}

/* Toggle switch for history persistence */
.toggle-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    cursor: default;
}

.toggle-item:hover {
    background: var(--bg-secondary);
}

.toggle-item > div {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
}

.toggle-switch {
    position: relative;
    display: inline-block;
    width: 44px;
    height: 24px;
    cursor: pointer;
}

.toggle-switch input {
    opacity: 0;
    width: 0;
    height: 0;
}

.toggle-slider {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-color: var(--border);
    border-radius: 24px;
    transition: 0.3s;
}

.toggle-slider:before {
    position: absolute;
    content: "";
    height: 18px;
    width: 18px;
    left: 3px;
    bottom: 3px;
    background-color: white;
    border-radius: 50%;
    transition: 0.3s;
}

.toggle-switch input:checked + .toggle-slider {
    background-color: var(--primary);
}

.toggle-switch input:checked + .toggle-slider:before {
    transform: translateX(20px);
}

.toggle-switch:hover .toggle-slider {
    box-shadow: 0 0 4px var(--primary);
}

/* Developer section styles */
.developer-section {
    border-top: 2px solid var(--primary);
    margin-top: var(--spacing-xs);
}

.menu-divider {
    height: 1px;
    background: var(--border);
    margin: var(--spacing-xs) 0;
}

.menu-section-title {
    padding: var(--spacing-sm) var(--spacing-lg);
    font-size: 0.75rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    color: var(--primary);
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
}

.developer-section .menu-item {
    background: linear-gradient(90deg, transparent, rgba(186, 12, 47, 0.05));
}

.developer-section .menu-item:hover {
    background: linear-gradient(90deg, transparent, rgba(186, 12, 47, 0.1));
}