/* ==================== 
   CSS Variables
   ==================== */
:root {
    /* Colors */
    --dark-bg: #121212;
    --darker-bg: #1e1e1e;
    --border-color: #2d2d2d;
    --ai-message-bg: #6c6b6b;
    --user-message-bg: #0d47a1;
    --ai-message-text: #e0e0e0;
    --user-message-text: #ffffff;
    --muted-text: #a0a0a0;
    --primary-color: #0d6efd;
    --primary-hover: #0b5ed7;
    --success-color: #4caf50;

    /* UI Elements */
    --border-radius: 16px;
    --spacing: 12px;
    --max-width: 85%;
    --shadow: 0 2px 5px rgba(0, 0, 0, 0.2);
    --avatar-size: 32px;

    /* Animation */
    --transition-speed: 0.3s;
}

/* ==================== 
   Base & Layout
   ==================== */
body {
    background-color: var(--dark-bg);
    color: var(--ai-message-text);
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, 'Open Sans', 'Helvetica Neue', sans-serif;
}

.chat-box {
    height: calc(100vh - 300px);
    overflow-y: scroll;
    scrollbar-width: thin;
    scrollbar-color: var(--border-color) var(--dark-bg);
}

@media only screen and (max-width: 480px) {
    .chat-box {
        height: calc(100vh - 390px);
    }
}

/* ==================== 
   Scrollbar Styling
   ==================== */
.chat-box::-webkit-scrollbar {
    width: 8px;
}

.chat-box::-webkit-scrollbar-track {
    background: var(--dark-bg);
}

.chat-box::-webkit-scrollbar-thumb {
    background-color: var(--border-color);
    border-radius: 10px;
}

/* ==================== 
   Message Components
   ==================== */
.message {
    display: flex;
    align-items: flex-start;
    margin-bottom: 16px;
    max-width: 100%;
    position: relative;
    animation: fade-in var(--transition-speed) ease-out;
}

.avatar {
    width: var(--avatar-size);
    height: var(--avatar-size);
    border-radius: 50%;
    margin-right: 10px;
    flex-shrink: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-weight: bold;
    font-size: 14px;
}

.ai-avatar {
    background-color: #5c6bc0;
}

.user-avatar {
    background-color: #26a69a;
}

.message-content {
    padding: var(--spacing);
    border-radius: var(--border-radius);
    box-shadow: var(--shadow);
    line-height: 1.5;
    position: relative;
    max-width: var(--max-width);
    word-wrap: break-word;
}

/* Message Types */
.ai-message {
    align-self: flex-start;
}

.ai-message .message-content {
    background-color: var(--ai-message-bg);
    color: var(--ai-message-text);
    border-bottom-left-radius: 4px;
}

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

.user-message .avatar {
    margin-right: 0;
    margin-left: 10px;
}

.user-message .message-content {
    background-color: var(--user-message-bg);
    color: var(--user-message-text);
    border-bottom-right-radius: 4px;
}

.timestamp {
    font-size: 10px;
    color: var(--muted-text);
    margin-top: 4px;
    text-align: right;
}

/* ==================== 
   Buttons & Controls
   ==================== */
/* Copy button */
.copy-btn {
    position: absolute;
    top: 8px;
    right: 8px;
    background-color: rgba(0, 0, 0, 0.2);
    color: var(--ai-message-text);
    border: none;
    border-radius: 4px;
    padding: 2px 6px;
    font-size: 12px;
    opacity: 0;
    transition: opacity var(--transition-speed);
    cursor: pointer;
}

.ai-message:hover .copy-btn {
    opacity: 1;
}

/* Code copy button */
.code-copy-container {
    position: absolute;
    top: 5px;
    right: 5px;
    z-index: 10;
}

.code-copy-btn {
    background-color: rgba(0, 0, 0, 0.3);
    color: var(--ai-message-text);
    border: none;
    border-radius: 4px;
    padding: 4px 8px;
    font-size: 12px;
    cursor: pointer;
    transition: all var(--transition-speed) ease;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 4px;
}

.code-copy-btn:hover {
    background-color: rgba(13, 110, 253, 0.5);
    color: white;
}

.code-copy-btn:active {
    transform: scale(0.95);
}

.code-copy-btn .bi-clipboard-check {
    color: var(--success-color);
    animation: check-animation 0.5s ease;
}

/* Disabled button */
.btn.disabled,
.btn:disabled {
    opacity: 0.65;
    cursor: not-allowed;
    pointer-events: none;
    background-color: #6c757d !important;
    border-color: #6c757d !important;
    color: #f8f9fa !important;
}

#sendButton.disabled {
    min-width: 120px;
    transition: all var(--transition-speed) ease;
}

/* Toggle Switch */
.switch {
    position: relative;
    display: inline-block;
    width: 60px;
    height: 34px;
}

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

.slider {
    position: absolute;
    cursor: pointer;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-color: #ccc;
    transition: .4s;
}

.slider:before {
    position: absolute;
    content: "";
    height: 26px;
    width: 26px;
    left: 4px;
    bottom: 4px;
    background-color: white;
    transition: .4s;
}

input:checked + .slider {
    background-color: #555261;
}

input:checked + .slider:before {
    transform: translateX(26px);
}

.slider.round {
    border-radius: 34px;
}

.slider.round:before {
    border-radius: 50%;
}

/* ==================== 
   Popups & Notifications
   ==================== */
.popup {
    position: fixed;
    bottom: 20vh;
    left: 50%;
    transform: translateX(-50%);
    background-color: rgba(0, 0, 0, 0.6);
    color: white;
    border-radius: 5px;
    padding: 10px 20px;
    font-size: 16px;
    display: none;
}

.copy-popup {
    transition: opacity 0.5s ease;
    z-index: 1050;
}

.copy-popup.show {
    opacity: 0.9 !important;
    animation: fade-out 2s forwards;
    animation-delay: 1s;
}

/* ==================== 
   Form Controls
   ==================== */
.form-control:focus {
    border-color: var(--primary-color);
    box-shadow: 0 0 0 0.25rem rgba(13, 110, 253, 0.25);
}

textarea {
    min-height: 38px;
    max-height: 150px;
    resize: none;
    overflow-y: hidden;
}

.form-range::-webkit-slider-thumb {
    background: var(--primary-color);
}

.form-range::-moz-range-thumb {
    background: var(--primary-color);
}

select.form-select {
    background-color: var(--darker-bg);
    color: var(--ai-message-text);
    border-color: var(--border-color);
}

/* ==================== 
   Bootstrap Overrides
   ==================== */
.navbar {
    background-color: var(--darker-bg) !important;
    border-bottom: 1px solid var(--border-color);
}

.card {
    background-color: var(--dark-bg) !important;
    border-color: var(--border-color) !important;
}

.card-header, .card-footer {
    background-color: var(--darker-bg) !important;
    border-color: var(--border-color) !important;
}

footer {
    background-color: var(--darker-bg);
    color: var(--muted-text);
    border-top: 1px solid var(--border-color);
    padding: 10px 0;
}

footer a {
    color: var(--primary-color);
    text-decoration: none;
}

footer a:hover {
    text-decoration: underline;
}

/* ==================== 
   Markdown Styling
   ==================== */
.markdown-content pre {
    position: relative;
    background-color: #f8f9fa;
    border: 1px solid #e9ecef;
    border-radius: 4px;
    padding: 12px;
    margin: 10px 0;
    overflow-x: auto;
}

.markdown-content code {
    background-color: rgba(211, 211, 211, 0.56);
    padding: 2px 5px;
    border-radius: 3px;
    font-family: 'Consolas', 'Monaco', 'Courier New', monospace;
    font-size: 0.9em;
    line-height: 1.4;
    color: #212529;
}

.markdown-content pre code {
    background-color: transparent;
    color: #333;
    padding: 0;
    border-radius: 0;
    display: block;
}

.markdown-content h1,
.markdown-content h2,
.markdown-content h3,
.markdown-content h4,
.markdown-content h5,
.markdown-content h6 {
    margin-top: 16px;
    margin-bottom: 10px;
    font-weight: 600;
}

.markdown-content a {
    color: var(--primary-color);
    text-decoration: none;
}

.markdown-content a:hover {
    text-decoration: underline;
}

.markdown-content blockquote {
    border-left: 4px solid var(--primary-color);
    padding-left: 12px;
    margin-left: 0;
    color: var(--muted-text);
}

.markdown-content ul,
.markdown-content ol {
    padding-left: 20px;
}

.markdown-content img {
    max-width: 100%;
    border-radius: 4px;
}

.markdown-content table {
    border-collapse: collapse;
    width: 100%;
    margin: 10px 0;
}

.markdown-content th,
.markdown-content td {
    border: 1px solid var(--border-color);
    padding: 8px;
}

.markdown-content th {
    background-color: var(--darker-bg);
}

/* ==================== 
   Highlight.js Styling
   ==================== */
.hljs-keyword, .hljs-selector-tag, .hljs-title, .hljs-section, .hljs-doctag, .hljs-name, .hljs-strong {
    color: #c678dd; /* purple for keywords */
    font-weight: bold;
}

.hljs-string, .hljs-attr {
    color: #98c379; /* green for strings */
}

.hljs-number, .hljs-literal {
    color: #d19a66; /* orange for numbers */
}

.hljs-comment {
    color: #5c6370; /* grey for comments */
}

.hljs-function, .hljs-built_in {
    color: #61afef; /* blue for functions */
}

.hljs-copy-wrapper {
    position: relative;
    overflow: hidden;
}

.hljs-copy-wrapper:hover .hljs-copy-button,
.hljs-copy-button:focus {
    transform: translateX(0);
}

.hljs-copy-button {
    position: absolute;
    transform: translateX(calc(100% + 1.125em));
    top: 0.5em;
    right: 0.5em;
    width: 2rem;
    height: 2rem;
    text-indent: -9999px;
    color: #000000;
    border-radius: 0.25rem;
    border: 1px solid;
    border-color: color-mix(in srgb, var(--hljs-theme-color), transparent 80%);
    background-color: var(--hljs-theme-color);
    transition: background-color 200ms ease, transform 200ms ease-out;
    overflow: hidden;
}

.hljs-copy-button:not([data-copied="true"])::before {
    content: "";
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    position: absolute;
    background-color: currentColor;
    mask: url('data:image/svg+xml;utf-8,<svg width="24" height="24" viewBox="0 0 24 24" fill="none" xmlns="http://www.w3.org/2000/svg"><path fill-rule="evenodd" clip-rule="evenodd" d="M6 5C5.73478 5 5.48043 5.10536 5.29289 5.29289C5.10536 5.48043 5 5.73478 5 6V20C5 20.2652 5.10536 20.5196 5.29289 20.7071C5.48043 20.8946 5.73478 21 6 21H18C18.2652 21 18.5196 20.8946 18.7071 20.7071C18.8946 20.5196 19 20.2652 19 20V6C19 5.73478 18.8946 5.48043 18.7071 5.29289C18.5196 5.10536 18.2652 5 18 5H16C15.4477 5 15 4.55228 15 4C15 3.44772 15.4477 3 16 3H18C18.7956 3 19.5587 3.31607 20.1213 3.87868C20.6839 4.44129 21 5.20435 21 6V20C21 20.7957 20.6839 21.5587 20.1213 22.1213C19.5587 22.6839 18.7957 23 18 23H6C5.20435 23 4.44129 22.6839 3.87868 22.1213C3.31607 21.5587 3 20.7957 3 20V6C3 5.20435 3.31607 4.44129 3.87868 3.87868C4.44129 3.31607 5.20435 3 6 3H8C8.55228 3 9 3.44772 9 4C9 4.55228 8.55228 5 8 5H6Z" fill="black"/><path fill-rule="evenodd" clip-rule="evenodd" d="M7 3C7 1.89543 7.89543 1 9 1H15C16.1046 1 17 1.89543 17 3V5C17 6.10457 16.1046 7 15 7H9C7.89543 7 7 6.10457 7 5V3ZM15 3H9V5H15V3Z" fill="black"/></svg>');
    mask-repeat: no-repeat;
    mask-size: 1rem;
    mask-position: center center;
}

.hljs-copy-button:hover {
    background-color: color-mix(in srgb, var(--hljs-theme-color), transparent 90%);
}

.hljs-copy-button:active {
    border-color: color-mix(in srgb, var(--hljs-theme-color), transparent 60%);
}

.hljs-copy-button[data-copied="true"] {
    text-indent: 0px;
    width: auto;
}

.hljs-copy-alert {
    clip: rect(0 0 0 0);
    clip-path: inset(50%);
    height: 1px;
    overflow: hidden;
    position: absolute;
    white-space: nowrap;
    width: 1px;
}

/* ==================== 
   Dark Mode Specific
   ==================== */
.dark-mode .dark-theme {
    background-color: #333;
    color: #fff;
}

.dark-mode .nav {
    background-color: #333;
    color: #fff;
}

.dark-mode .dark-text {
    color: #fff;
}

.dark-mode .card {
    background-color: #333;
    color: #fff;
}

.dark-mode .popup {
    background-color: #fff;
    color: #333;
}

.dark-mode .fa-clipboard {
    color: #212529;
    background-color: #7cc;
    border-color: #5bc2c2;
}

.dark-mode .fa-clipboard:hover {
    color: #212529;
    background-color: #52bebe;
    border-color: #8ad3d3;
}

/* ==================== 
   Tag and Misc Elements
   ==================== */
.tag-wrapper {
    position: absolute;
    bottom: 0;
    left: 0;
}

.animated-spin {
    animation: spinner-border 1.5s linear infinite;
    display: inline-block;
}

/* ====================
   Streaming Cursor
   ==================== */
.streaming-cursor {
    display: inline-block;
    animation: blink-cursor 0.8s step-end infinite;
    color: var(--primary-color);
    font-weight: bold;
    margin-left: 2px;
}

@keyframes blink-cursor {
    0%, 100% { opacity: 1; }
    50% { opacity: 0; }
}

.stream-content {
    min-height: 1.5em;
}

.stream-content p:last-child {
    margin-bottom: 0;
}

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

@keyframes fade-out {
    from { opacity: 0.9; }
    to { opacity: 0; }
}

@keyframes spinner-border {
    to { transform: rotate(360deg); }
}

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

@media (prefers-reduced-motion) {
    .hljs-copy-button {
        transition: none;
    }
}