@tailwind base;
@tailwind components;
@tailwind utilities;

:root {
    /* Day Mode (Default) */
    --bg-page: #ffffff;
    --bg-sidebar: #f8fafc; /* slate-50 */
    --bg-element: #ffffff;
    --bg-element-alt: #f1f5f9; /* slate-100 */
    --bg-hover: #f1f5f9;
    --text-primary: #0f172a; /* slate-900 */
    --text-secondary: #64748b; /* slate-500 */
    --border-color: #e2e8f0; /* slate-200 */
    --accent-color: #0ea5e9; /* brand-500 */
    --accent-hover: #0284c7; /* brand-600 */
    --shadow-color: rgba(0, 0, 0, 0.05);
    
    /* Code Blocks */
    --code-bg: #f8fafc;
    --code-header: #f1f5f9;
    --code-border: #e2e8f0;
}

[data-theme="dark"] {
    /* Night Mode */
    --bg-page: #0f172a; /* slate-900 */
    --bg-sidebar: #020617; /* slate-950 */
    --bg-element: #1e293b; /* slate-800 */
    --bg-element-alt: #1e293b;
    --bg-hover: #334155; /* slate-700 */
    --text-primary: #f1f5f9; /* slate-100 */
    --text-secondary: #94a3b8; /* slate-400 */
    --border-color: #1e293b; /* slate-800 */
    --accent-color: #38bdf8; /* sky-400 */
    --accent-hover: #0ea5e9; /* sky-500 */
    --shadow-color: rgba(0, 0, 0, 0.3);

    /* Code Blocks */
    --code-bg: #0d1117;
    --code-header: #161b22;
    --code-border: #30363d;
}

[data-theme="eye-care"] {
    /* Eye Care Mode (Warm/Sepia) */
    --bg-page: #f7f5e6; /* warm beige */
    --bg-sidebar: #efebd6;
    --bg-element: #fdfbf7;
    --bg-element-alt: #e8e4d0;
    --bg-hover: #e3dec3;
    --text-primary: #433422; /* warm brown */
    --text-secondary: #7d7063;
    --border-color: #dcd7c5;
    --accent-color: #5c7c59; /* sage green */
    --accent-hover: #4a6647;
    --shadow-color: rgba(67, 52, 34, 0.05);

    /* Code Blocks */
    --code-bg: #fdfbf7;
    --code-header: #efebd6;
    --code-border: #dcd7c5;
}

/* Base Typography */
body {
    background-color: var(--bg-page);
    color: var(--text-primary);
    transition: background-color 0.3s, color 0.3s;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

/* Select 下拉菜单样式 */
select {
    background-color: var(--bg-element);
    color: var(--text-primary);
}

select option {
    background-color: var(--bg-element);
    color: var(--text-primary);
    padding: 8px 12px;
}

select option:hover,
select option:focus,
select option:checked {
    background-color: var(--bg-hover);
    color: var(--text-primary);
}

/* 深色模式下的 select */
[data-theme="dark"] select {
    background-color: var(--bg-element);
    color: var(--text-primary);
}

[data-theme="dark"] select option {
    background-color: #1e293b;
    color: #f1f5f9;
}

[data-theme="dark"] select option:hover,
[data-theme="dark"] select option:checked {
    background: linear-gradient(#334155, #334155);
    background-color: #334155 !important;
    color: #f1f5f9;
}

/* 护眼模式下的 select */
[data-theme="eye-care"] select option {
    background-color: #fdfbf7;
    color: #3d3929;
}

[data-theme="eye-care"] select option:hover,
[data-theme="eye-care"] select option:checked {
    background-color: #e8e4d0;
    color: #3d3929;
}

/* Custom Scrollbar */
.custom-scrollbar::-webkit-scrollbar {
    width: 5px;
    height: 5px;
}

.custom-scrollbar::-webkit-scrollbar-track {
    background: transparent;
}

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

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

/* Typography Pro (Markdown) */
.prose {
    font-size: 0.95rem;
    line-height: 1.75;
    color: var(--text-primary);
}

.prose p {
    margin-bottom: 1.25em;
}

.prose h1, .prose h2, .prose h3, .prose h4 {
    color: var(--text-primary);
    font-weight: 600;
    margin-top: 1.5em;
    margin-bottom: 0.75em;
}

.prose h1 { font-size: 1.5em; }
.prose h2 { font-size: 1.25em; }
.prose h3 { font-size: 1.1em; }

.prose ul, .prose ol {
    margin-bottom: 1.25em;
    padding-left: 1.5em;
}

.prose li {
    margin-bottom: 0.5em;
}

.prose ul { list-style-type: disc; }
.prose ol { list-style-type: decimal; }

.prose a {
    color: var(--accent-color);
    text-decoration: none;
    font-weight: 500;
    border-bottom: 1px solid transparent;
    transition: border-color 0.2s;
}

.prose a:hover {
    border-bottom-color: currentColor;
}

.prose code {
    background-color: var(--bg-element-alt);
    color: var(--text-primary);
    padding: 0.2em 0.4em;
    border-radius: 0.375rem;
    font-family: 'JetBrains Mono', monospace;
    font-size: 0.85em;
}

.prose pre {
    background-color: transparent;
    padding: 0;
    margin: 1.5em 0;
}

.prose pre code {
    background-color: transparent;
    color: inherit;
    padding: 0;
    font-size: 0.875rem;
}

.prose blockquote {
    border-left: 4px solid var(--border-color);
    padding-left: 1em;
    font-style: italic;
    color: var(--text-secondary);
    margin: 1.5em 0;
}

/* Code Block Component - Themed */
.code-block-wrapper {
    margin: 1.5rem 0;
    border-radius: 0.75rem;
    overflow: hidden;
    background-color: var(--code-bg);
    border: 1px solid var(--code-border);
    box-shadow: 0 1px 2px 0 var(--shadow-color);
}

.code-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    background-color: var(--code-header);
    padding: 0.5rem 1rem;
    border-bottom: 1px solid var(--code-border);
    color: var(--text-secondary);
    font-size: 0.75rem;
    font-family: 'Inter', sans-serif;
    font-weight: 500;
}

.code-content {
    padding: 1rem;
    overflow-x: auto;
    font-size: 0.9em;
    line-height: 1.6;
    color: var(--text-primary);
}

/* Override Highlight.js background */
.hljs {
    background: transparent !important;
    padding: 0 !important;
}

/* Code block pre styling */
.code-content pre {
    margin: 0;
    background: transparent;
}

.code-content code {
    display: block;
    font-family: 'JetBrains Mono', monospace;
    font-size: 0.875rem;
    line-height: 1.6;
    white-space: pre;
    overflow-x: auto;
}

/* Dark mode syntax highlighting */
[data-theme="dark"] .hljs-keyword,
[data-theme="dark"] .hljs-selector-tag,
[data-theme="dark"] .hljs-title,
[data-theme="dark"] .hljs-section,
[data-theme="dark"] .hljs-doctag,
[data-theme="dark"] .hljs-name,
[data-theme="dark"] .hljs-strong {
    color: #ff7b72;
}

[data-theme="dark"] .hljs-string,
[data-theme="dark"] .hljs-attr {
    color: #a5d6ff;
}

[data-theme="dark"] .hljs-comment,
[data-theme="dark"] .hljs-quote {
    color: #8b949e;
    font-style: italic;
}

[data-theme="dark"] .hljs-number,
[data-theme="dark"] .hljs-literal {
    color: #79c0ff;
}

[data-theme="dark"] .hljs-function,
[data-theme="dark"] .hljs-built_in {
    color: #d2a8ff;
}

[data-theme="dark"] .hljs-variable,
[data-theme="dark"] .hljs-params {
    color: #c9d1d9;
}

[data-theme="dark"] .hljs-type,
[data-theme="dark"] .hljs-class {
    color: #7ee787;
}

/* Eye care mode syntax highlighting */
[data-theme="eye-care"] .hljs-keyword,
[data-theme="eye-care"] .hljs-selector-tag {
    color: #5c7c59;
    font-weight: 600;
}

[data-theme="eye-care"] .hljs-string {
    color: #8b6d4a;
}

[data-theme="eye-care"] .hljs-comment {
    color: #7d7063;
    font-style: italic;
}

[data-theme="eye-care"] .hljs-number {
    color: #6a8f68;
}

/* Typing Indicator */
.typing-dot {
    width: 6px;
    height: 6px;
    background-color: var(--text-secondary);
    border-radius: 50%;
    display: inline-block;
    animation: bounce 1.4s infinite ease-in-out both;
}

.typing-dot:nth-child(1) { animation-delay: -0.32s; }
.typing-dot:nth-child(2) { animation-delay: -0.16s; }

@keyframes bounce {
    0%, 80%, 100% { transform: scale(0); }
    40% { transform: scale(1); }
}

/* User Message Styling */
.user-message-bubble {
    background-color: var(--bg-element-alt);
    color: var(--text-primary);
    border-radius: 1.5rem;
    border-bottom-right-radius: 0.25rem;
    padding: 0.75rem 1.25rem;
    max-width: 85%;
    display: inline-block;
    line-height: 1.6;
}

/* AI Message Styling */
.ai-message-container {
    width: 100%;
}

/* Scroll to Bottom Button */
#scroll-to-bottom-btn {
    transition: opacity 0.2s ease, transform 0.2s ease;
}

#scroll-to-bottom-btn:hover {
    transform: translateY(2px);
}

/* Copy Button Animation */
.copy-btn {
    transition: all 0.2s ease;
}

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

/* Reasoning Block (思考过程) */
.reasoning-block {
    animation: fadeIn 0.3s ease-out;
}

.reasoning-block summary {
    list-style: none;
}

.reasoning-block summary::-webkit-details-marker {
    display: none;
}

.reasoning-block summary::before {
    content: '▶';
    display: inline-block;
    margin-right: 0.5rem;
    font-size: 0.7em;
    transition: transform 0.2s ease;
}

.reasoning-block[open] summary::before {
    transform: rotate(90deg);
}

.reasoning-block .reasoning-content {
    font-family: var(--font-mono, 'JetBrains Mono', monospace);
    font-size: 0.85rem;
    line-height: 1.6;
    background: var(--code-bg);
}

.reasoning-block .reasoning-status {
    animation: pulse 1.5s infinite;
}

.reasoning-block .reasoning-status.text-green-500 {
    animation: none;
}

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

/* 图片上传相关样式 */
#image-preview-container {
    border-bottom: 1px solid var(--border-color);
}

#image-preview {
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
}

#image-btn {
    position: relative;
}

#image-btn::after {
    content: '';
    position: absolute;
    inset: 0;
    border-radius: 0.5rem;
    transition: background-color 0.2s;
}

#image-btn:hover::after {
    background-color: var(--bg-hover);
}

/* 用户消息中的图片样式 */
.user-message-bubble img {
    border-radius: 0.75rem;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
}

/* 图片识别中的动画 */
#image-analyzing {
    backdrop-filter: blur(2px);
}

/* 拖拽上传高亮效果 */
#chat-input.drag-over {
    background-color: var(--bg-element-alt);
    border-color: var(--accent-color);
}

/* 图片理解结果样式 */
.image-analysis-tag {
    background: linear-gradient(135deg, #a855f7 0%, #ec4899 100%);
    color: white;
    font-size: 0.75rem;
    font-weight: 600;
    padding: 0.25rem 0.75rem;
    border-radius: 9999px;
    display: inline-flex;
    align-items: center;
    gap: 0.25rem;
}

[data-theme="dark"] .image-analysis-tag {
    background: linear-gradient(135deg, #a855f7 0%, #ec4899 100%);
}

[data-theme="eye-care"] .image-analysis-tag {
    background: linear-gradient(135deg, #7c6f4a 0%, #8b6d4a 100%);
}

/* 图片理解折叠块样式 */
.image-analysis-block {
    animation: fadeIn 0.3s ease-out;
}

.image-analysis-block summary {
    list-style: none;
}

.image-analysis-block summary::-webkit-details-marker {
    display: none;
}

.image-analysis-block .image-analysis-chevron {
    transition: transform 0.2s ease;
}

.image-analysis-block[open] .image-analysis-chevron {
    transform: rotate(0deg);
}

.image-analysis-block:not([open]) .image-analysis-chevron {
    transform: rotate(-90deg);
}

.image-analysis-block:not([open]) summary {
    margin-bottom: 0;
}