css/style.css

/* Reset and Base Styles */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
}

:root {
    --primary-color: #0084ff;
    --secondary-color: #e7f2ff;
    --text-color: #333;
    --text-light: #777;
    --bg-color: #fff;
    --bg-light: #f5f7f9;
    --border-color: #eaeaea;
    --shadow-color: rgba(0, 0, 0, 0.1);
}

body {
    background-color: var(--bg-light);
    color: var(--text-color);
    line-height: 1.6;
}

/* Chat Container */
.chat-container {
    max-width: 100%;
    height: 100vh;
    display: flex;
    flex-direction: column;
    background-color: var(--bg-color);
    position: relative;
    box-shadow: 0 0 20px var(--shadow-color);
}

/* Chat Header */
.chat-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 16px 20px;
    background-color: var(--bg-color);
    border-bottom: 1px solid var(--border-color);
    box-shadow: 0 2px 8px var(--shadow-color);
    z-index: 10;
}

.chat-header h1 {
    font-size: 18px;
    font-weight: 600;
    color: var(--text-color);
}

.header-actions {
    display: flex;
    align-items: center;
    gap: 12px;
}

.menu-btn, .new-chat-btn, .theme-toggle-btn {
    background: none;
    border: none;
    font-size: 18px;
    color: var(--text-light);
    cursor: pointer;
    padding: 8px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    width: 36px;
    height: 36px;
    transition: all 0.2s ease;
}

.menu-btn:hover, .new-chat-btn:hover, .theme-toggle-btn:hover {
    background-color: var(--bg-light);
    color: var(--text-color);
}

/* Welcome Message */
.welcome-message {
    text-align: center;
    max-width: 400px;
    padding: 24px;
    background-color: var(--bg-color);
    border-radius: 12px;
    box-shadow: 0 2px 12px var(--shadow-color);
    margin: auto;
}

.welcome-logo {
    width: 90px;
    height: 90px;
    margin-bottom: 20px;
    border-radius: 50%;
    object-fit: cover;
    box-shadow: 0 2px 8px var(--shadow-color);
}

.welcome-message h2 {
    font-size: 24px;
    margin-bottom: 12px;
    color: var(--text-color);
}

.welcome-message p {
    color: var(--text-light);
    font-size: 16px;
    margin-bottom: 16px;
}

.context-info {
    font-size: 13px;
    color: var(--text-light);
    background-color: var(--bg-light);
    padding: 8px 12px;
    border-radius: 8px;
    margin-top: 16px;
}

/* Dark Theme */
[data-theme="dark"] {
    --primary-color: #1a91ff;
    --secondary-color: #2c4763;
    --text-color: #e1e1e1;
    --text-light: #999;
    --bg-color: #1a1a1a;
    --bg-light: #2c2c2c;
    --border-color: #333;
    --shadow-color: rgba(0, 0, 0, 0.3);
}

/* Status Bar */
.status-bar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 4px 16px;
    background-color: #fff;
    font-size: 14px;
    height: 24px;
}

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

.network {
    font-size: 12px;
    color: #666;
}

/* Chat Messages */
.chat-messages {
    flex: 1;
    overflow-y: auto;
    padding: 16px;
    display: flex;
    flex-direction: column;
    background-color: #f5f7f9;
}

/* Chat Input */
.chat-input {
    padding: 16px;
    background-color: #fff;
    border-top: 1px solid #eaeaea;
    box-shadow: 0 -2px 10px rgba(0, 0, 0, 0.05);
}

.input-container {
    background-color: #f5f7f9;
    border-radius: 24px;
    padding: 10px 16px;
    display: flex;
    align-items: center;
    transition: all 0.3s ease;
}

.input-container:focus-within {
    background-color: #fff;
    box-shadow: 0 2px 12px rgba(0, 0, 0, 0.1);
    border: 1px solid #d0e3ff;
}

#message-input {
    width: 100%;
    border: none;
    outline: none;
    font-size: 15px;
    padding: 8px 0;
    background: transparent;
    color: #333;
}

#message-input::placeholder {
    color: #999;
}

.input-actions {
    display: flex;
    align-items: center;
    justify-content: flex-end;
    gap: 12px;
    margin-left: 10px;
}

.more-btn, .send-btn {
    background: none;
    border: none;
    padding: 8px;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    transition: all 0.2s ease;
}

.more-btn {
    color: #666;
    width: 32px;
    height: 32px;
}

.more-btn:hover {
    background-color: #eaeaea;
    color: #333;
}

.send-btn {
    background-color: #0084ff;
    color: white;
    width: 36px;
    height: 36px;
}

.send-btn:hover {
    background-color: #0078e7;
    transform: scale(1.05);
}

.send-btn:disabled {
    background-color: #ccc;
    cursor: not-allowed;
    opacity: 0.7;
    transform: none;
}

.send-btn i {
    font-size: 16px;
}

/* Dark Theme Chat Input */
[data-theme="dark"] .chat-input {
    background-color: #1e1e1e;
    border-color: #333;
    box-shadow: 0 -2px 10px rgba(0, 0, 0, 0.2);
}

[data-theme="dark"] .input-container {
    background-color: #2c2c2c;
}

[data-theme="dark"] .input-container:focus-within {
    background-color: #333;
    box-shadow: 0 2px 12px rgba(0, 0, 0, 0.3);
    border-color: #555;
}

[data-theme="dark"] #message-input {
    color: #e1e1e1;
}

[data-theme="dark"] #message-input::placeholder {
    color: #777;
}

[data-theme="dark"] .more-btn {
    color: #aaa;
}

[data-theme="dark"] .more-btn:hover {
    background-color: #444;
    color: #fff;
}

/* Message Bubbles */
.message {
    margin: 16px 0;
    max-width: 85%;
    animation: fadeIn 0.3s ease;
    position: relative;
}

/* User Message Styling */
.message.user-message {
    align-self: flex-start;
}

.question-bubble {
    background-color: #fff;
    color: #1a1a1a;
    padding: 12px 16px;
    border-radius: 18px;
    border-top-left-radius: 4px;
    box-shadow: 0 1px 2px rgba(0, 0, 0, 0.1);
    font-size: 15px;
    line-height: 1.5;
    position: relative;
}

/* Bot Message Styling */
.message.bot-message {
    align-self: flex-end;
}

.answer-container {
    display: flex;
    gap: 12px;
    align-items: flex-start;
    margin-left: auto;
}

.bot-icon {
    flex-shrink: 0;
    width: 36px;
    height: 36px;
    border-radius: 50%;
    overflow: hidden;
    background-color: transparent;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
}

.bot-icon img {
    width: 100%;
    height: 100%;
    object-fit: contain;
    display: block;
}

.answer-content {
    background-color: #e7f2ff;
    padding: 16px;
    border-radius: 18px;
    border-top-right-radius: 4px;
    box-shadow: 0 1px 2px rgba(0, 0, 0, 0.1);
    color: #333;
    font-size: 15px;
    line-height: 1.6;
    max-width: calc(100% - 48px);
}

/* Response Formatting */
.response-heading {
    font-size: 20px;
    font-weight: 600;
    margin: 16px 0 12px;
    color: #1a1a1a;
    border-bottom: 1px solid rgba(0, 0, 0, 0.1);
    padding-bottom: 8px;
}

.definition {
    margin: 12px 0;
    line-height: 1.6;
}

.term {
    font-weight: 600;
    color: #1a1a1a;
}

.definition-text {
    color: #444;
}

.numbered-list {
    margin: 12px 0;
}

.list-item {
    display: flex;
    margin: 12px 0;
    align-items: flex-start;
}

.number {
    font-weight: 600;
    margin-right: 8px;
    color: #1a1a1a;
    min-width: 25px;
}

.list-content {
    flex: 1;
}

.list-term {
    font-weight: 600;
    color: #1a1a1a;
}

.list-definition {
    color: #444;
    display: block;
    margin-top: 4px;
}

.response-paragraph {
    margin: 12px 0;
    color: #333;
}

/* Message Timestamp */
.message-time {
    font-size: 11px;
    color: #999;
    margin-top: 4px;
    text-align: right;
}

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

/* Dark Theme Adjustments */
[data-theme="dark"] .chat-messages {
    background-color: #1a1a1a;
}

[data-theme="dark"] .question-bubble {
    background-color: #2c2c2c;
    color: #e1e1e1;
}

[data-theme="dark"] .answer-content {
    background-color: #383838;
    color: #e1e1e1;
    border-color: #444;
}

[data-theme="dark"] .response-heading {
    color: #e1e1e1;
    border-color: rgba(255, 255, 255, 0.1);
}

[data-theme="dark"] .term,
[data-theme="dark"] .number,
[data-theme="dark"] .list-term {
    color: #e1e1e1;
}

[data-theme="dark"] .definition-text,
[data-theme="dark"] .list-definition,
[data-theme="dark"] .response-paragraph {
    color: #b4b4b4;
}

[data-theme="dark"] .message-time {
    color: #777;
}

/* Typing indicator adjustments */
.typing-indicator {
    background: transparent !important;
    margin-bottom: 8px;
}

.typing-indicator span {
    background-color: var(--text-secondary);
}

/* Responsive Design */
@media (max-width: 768px) {
    .chat-container {
        height: 100vh;
    }
    
    .welcome-message {
        padding: 0 16px;
    }
    
    .input-container {
        margin-bottom: env(safe-area-inset-bottom, 0);
    }
}

/* Error Message */
.error-message {
    background-color: #ffebee;
    color: #c62828;
    border: 1px solid #ffcdd2;
    padding: 12px 16px;
    margin: 8px 0;
    border-radius: 8px;
    font-size: 14px;
    text-align: center;
    animation: shake 0.5s ease-in-out;
}

@keyframes shake {
    0%, 100% { transform: translateX(0); }
    25% { transform: translateX(-4px); }
    75% { transform: translateX(4px); }
}

/* Menu Overlay Styles */
.menu-overlay {
    position: fixed;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.5);
    z-index: 1000;
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.3s ease, visibility 0.3s ease;
}

.menu-overlay.active {
    left: 0;
    opacity: 1;
    visibility: visible;
}

.menu-content {
    position: absolute;
    top: 0;
    left: -300px;
    width: 300px;
    height: 100%;
    background-color: #fff;
    box-shadow: 2px 0 8px rgba(0, 0, 0, 0.1);
    transition: left 0.3s ease-in-out;
    display: flex;
    flex-direction: column;
}

.menu-overlay.active .menu-content {
    left: 0;
}

.menu-header {
    padding: 20px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    border-bottom: 1px solid #eee;
}

.menu-logo {
    height: 40px;
    width: 40px;
    border-radius: 50%;
    object-fit: cover;
}

.close-menu-btn {
    background: none;
    border: none;
    font-size: 24px;
    color: #666;
    cursor: pointer;
    padding: 8px;
    transition: color 0.2s ease;
}

.close-menu-btn:hover {
    color: #333;
}

.menu-nav {
    padding: 20px 0;
    flex-grow: 1;
}

.menu-item {
    display: flex;
    align-items: center;
    padding: 15px 20px;
    color: #333;
    text-decoration: none;
    transition: background-color 0.2s ease;
}

.menu-item:hover {
    background-color: #f5f5f5;
}

.menu-item i {
    width: 24px;
    margin-right: 15px;
    color: #4285f4;
}

.menu-item span {
    font-size: 16px;
}

/* Recent Conversations Styles */
.recent-conversations {
    padding: 16px 0;
}

.recent-conversations h3 {
    font-size: 14px;
    color: #666;
    padding: 0 20px;
    margin-bottom: 12px;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.conversation-list {
    margin-bottom: 8px;
}

.conversation-item {
    display: flex;
    align-items: center;
    padding: 12px 20px;
    color: #333;
    text-decoration: none;
    cursor: pointer;
    transition: background-color 0.2s ease;
}

.conversation-item:hover {
    background-color: #f5f5f5;
}

.conversation-item i {
    width: 24px;
    margin-right: 15px;
    color: #4285f4;
}

.conversation-item span {
    font-size: 15px;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.see-more-btn {
    display: flex;
    align-items: center;
    width: 100%;
    padding: 12px 20px;
    background: none;
    border: none;
    color: #4285f4;
    cursor: pointer;
    font-size: 15px;
    transition: background-color 0.2s ease;
}

.see-more-btn:hover {
    background-color: #f5f5f5;
}

.see-more-btn i {
    width: 24px;
    margin-right: 15px;
}

.menu-divider {
    height: 1px;
    background-color: #eee;
    margin: 8px 0;
}

/* Conversation Overlay Styles */
.conversation-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: var(--overlay-bg);
    z-index: 2000;
    display: flex;
    justify-content: center;
    align-items: center;
    animation: fadeIn 0.3s ease;
}

.conversation-overlay-content {
    background-color: var(--bg-color);
    width: 90%;
    max-width: 600px;
    max-height: 80vh;
    border-radius: 12px;
    box-shadow: 0 4px 24px var(--shadow-color);
    overflow: hidden;
    animation: slideIn 0.3s ease;
}

.overlay-header {
    padding: 20px;
    border-bottom: 1px solid var(--border-color);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.overlay-header h2 {
    font-size: 20px;
    color: var(--text-color);
}

.close-overlay-btn {
    background: none;
    border: none;
    color: var(--icon-color);
    font-size: 24px;
    cursor: pointer;
    padding: 8px;
    transition: color 0.2s ease;
}

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

.conversation-list-full {
    overflow-y: auto;
    max-height: calc(80vh - 70px);
    padding: 12px 0;
}

/* Enhanced Conversation Item Styles */
.conversation-item {
    display: flex;
    align-items: center;
    padding: 16px 20px;
    transition: background-color 0.2s ease;
    cursor: pointer;
    border-bottom: 1px solid var(--border-color);
}

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

.conversation-item:hover {
    background-color: var(--hover-bg);
}

.conversation-details {
    flex-grow: 1;
    margin-left: 16px;
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.conversation-title {
    font-size: 16px;
    font-weight: 500;
    color: var(--text-color);
}

.message-count {
    font-size: 14px;
    color: var(--secondary-text);
}

.conversation-date {
    font-size: 12px;
    color: var(--secondary-text);
}

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