@import url('https://fonts.googleapis.com/css2?family=Inter:wght@400;700&family=JetBrains+Mono:wght@400;700&display=swap');

/* 基础定义 */
:root {
    --transition-speed: 0.3s;
}

/* 暗色主题 (Pornhub 风格) */
.theme-dark {
    --bg-color: #000000;
    --container-bg: #1b1b1b;
    --primary-color: #ff9900; /* 经典橙色 */
    --primary-glow: rgba(255, 153, 0, 0.3);
    --ai-msg-bg: #2b2b2b;
    --user-msg-bg: #ff9900; 
    --user-text: #000000;
    --text-main: #ffffff;
    --text-dim: #999;
    --border-color: rgba(255, 255, 255, 0.1);
    --header-bg: rgba(0, 0, 0, 0.8);
}

/* 浅色模式优化 - 现代简约风格 */
.theme-light {
    --bg-color: #f8fafc;
    --container-bg: #ffffff;
    --primary-color: #0ea5e9; /* 鲜活的天蓝色 */
    --primary-glow: rgba(14, 165, 233, 0.1);
    --ai-msg-bg: #f1f5f9;
    --user-msg-bg: #0ea5e9;
    --user-text: #ffffff;
    --text-main: #0f172a;
    --text-dim: #64748b;
    --border-color: #e2e8f0;
    --header-bg: rgba(255, 255, 255, 0.9);
}

.theme-light .glass {
    background: rgba(255, 255, 255, 0.7);
    box-shadow: 0 4px 6px -1px rgb(0 0 0 / 0.1), 0 2px 4px -2px rgb(0 0 0 / 0.1);
    border: 1px solid #ffffff;
}

.theme-light .primary-btn {
    color: #fff !important;
    box-shadow: 0 4px 14px 0 rgba(14, 165, 233, 0.3);
}

.theme-light select, 
.theme-light input, 
.theme-light textarea {
    background-color: #ffffff !important;
    border: 1px solid #e2e8f0;
}

.theme-light select:focus, 
.theme-light input:focus, 
.theme-light textarea:focus {
    border-color: var(--primary-color);
    box-shadow: 0 0 0 2px var(--primary-glow);
}

.theme-light .bg-black\/10 { background-color: #f1f5f9; }
.theme-light .bg-black\/20 { background-color: #ffffff; border: 1px solid #e2e8f0; }
.theme-light .bg-black\/40 { background-color: #ffffff; border: 1px solid #e2e8f0; }
.theme-light .bg-white\/5 { background-color: #f8fafc; }
.theme-light .bg-white\/10 { background-color: #f1f5f9; }
.theme-light .bg-white\/20 { background-color: #e2e8f0; }

.theme-light ::-webkit-scrollbar-thumb { background: #cbd5e1; }
.theme-light ::-webkit-scrollbar-track { background: transparent; }

.theme-light .markdown-body {
    color: #334155;
}

body {
    font-family: 'Inter', system-ui, -apple-system, sans-serif;
    background-color: var(--bg-color);
    color: var(--text-main);
    margin: 0;
    transition: background-color var(--transition-speed), color var(--transition-speed);
}

h1, h2, h3, h4, h5, h6 {
    color: var(--text-main);
}

.text-dim {
    color: var(--text-dim) !important;
}

textarea, input {
    color: var(--text-main);
    background-color: transparent;
}

textarea::placeholder, input::placeholder {
    color: var(--text-dim);
    opacity: 0.5;
}

.mono {
    font-family: 'JetBrains Mono', monospace;
}

/* 通用组件 */
.glass {
    background: var(--container-bg);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border: 1px solid var(--border-color);
}

.cyber-border {
    border: 1px solid var(--primary-color);
    box-shadow: 0 0 10px var(--primary-glow);
}

/* 消息气泡 */
.message-bubble {
    max-width: 85%;
    box-shadow: 0 5px 15px rgba(0,0,0,0.1);
    transition: transform 0.2s;
}

.user-message {
    background: var(--user-msg-bg);
    color: var(--user-text);
    border-radius: 12px 12px 2px 12px;
}

.ai-message {
    background: var(--ai-msg-bg);
    color: var(--text-main);
    border: 1px solid var(--border-color);
    border-radius: 12px 12px 12px 2px;
}

.message-bubble .markdown-body > *:last-child {
    margin-bottom: 0;
}

.theme-dark .ai-message {
    border: 1px solid rgba(255, 153, 0, 0.1);
}

/* Markdown 渲染深度美化 */
.markdown-body {
    line-height: 1.7;
    font-size: inherit; /* 允许通过父级类控制字号 */
    color: var(--text-main);
    overflow-wrap: break-word;
    word-break: break-word;
}

.kb-markdown-body {
    font-size: 18px;
}

.markdown-body h1, .markdown-body h2, .markdown-body h3 {
    margin-top: 1.5em;
    margin-bottom: 1em;
    font-weight: 700;
    line-height: 1.3;
}

.markdown-body h1 { font-size: 1.8em; border-bottom: 2px solid var(--border-color); padding-bottom: 0.3em; }
.markdown-body h2 { font-size: 1.4em; border-bottom: 1px solid var(--border-color); padding-bottom: 0.3em; }
.markdown-body h3 { font-size: 1.2em; }

.markdown-body p { margin-bottom: 1em; }

.markdown-body ul, .markdown-body ol {
    padding-left: 1.5em;
    margin-bottom: 1em;
}

.markdown-body li { margin-bottom: 0.5em; }

.markdown-body code {
    background: rgba(128, 128, 128, 0.15);
    padding: 0.2em 0.4em;
    border-radius: 4px;
    font-family: 'JetBrains Mono', monospace;
    font-size: 0.9em;
}

.markdown-body pre {
    background: rgba(0, 0, 0, 0.2);
    padding: 1em;
    border-radius: 12px;
    margin-bottom: 1.5em;
    overflow-x: auto;
    border: 1px solid var(--border-color);
    max-width: 100%;
}

.markdown-body blockquote {
    margin: 1.5em 0;
    padding: 0.5em 1em;
    color: var(--text-dim);
    border-left: 4px solid var(--primary-color);
    background: var(--primary-glow);
    border-radius: 0 8px 8px 0;
    overflow-wrap: break-word;
}

.markdown-body table {
    width: 100%;
    border-collapse: collapse;
    margin-bottom: 1.5em;
    display: block;
    overflow-x: auto;
}


.theme-light .markdown-body pre {
    background: #f1f5f9;
}

.markdown-body pre code {
    background: transparent;
    padding: 0;
    font-size: 0.85em;
}

.markdown-body blockquote {
    margin: 1.5em 0;
    padding: 0.5em 1em;
    color: var(--text-dim);
    border-left: 4px solid var(--primary-color);
    background: var(--primary-glow);
    border-radius: 0 8px 8px 0;
}

.markdown-body table {
    width: 100%;
    border-collapse: collapse;
    margin-bottom: 1.5em;
}

.markdown-body th, .markdown-body td {
    padding: 0.75em;
    border: 1px solid var(--border-color);
    text-align: left;
}

.markdown-body th {
    background: rgba(128, 128, 128, 0.05);
    font-weight: bold;
}

.markdown-body img {
    max-width: 100%;
    border-radius: 8px;
    margin: 1em 0;
}

.markdown-body a {
    color: var(--primary-color);
    text-decoration: none;
    font-weight: 600;
}

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

/* 特色按钮 */
.primary-btn {
    background: var(--primary-color);
    color: #000;
    font-weight: bold;
    border-radius: 4px;
    transition: filter 0.2s;
}

.theme-light .primary-btn {
    color: #fff;
}

.primary-btn:hover {
    filter: brightness(1.1);
}

/* 滚动条定制 */
::-webkit-scrollbar { width: 6px; height: 6px; }
::-webkit-scrollbar-thumb { background: #555; border-radius: 3px; }
::-webkit-scrollbar-track { background: transparent; }

.scroll-thin::-webkit-scrollbar { width: 3px; }
.scroll-thin::-webkit-scrollbar-thumb { background: #777; }