crush-tutorial.css

/* Crush Tutorial - Charmbracelet Purple Dark Theme */
/* 基于 Charmbracelet 品牌色系，优化为深色背景高对比度方案 */

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

:root {
  /* Charmbracelet 品牌色系 - 深色方案 */
  --bg: #1a1625;           /* 深紫灰 - 主背景 */
  --surface: #231f30;       /* 紫灰 - 卡片背景 */
  --surface2: #2d2840;      /* 中间层背景 */
  --surface3: #3a3350;      /* 更亮的表面 */
  
  /* 边框与分割 */
  --border: #3d3558;        /* 紫色边框 */
  --border-light: #50466e;  /* 更亮的边框 */
  
  /* 文字颜色 - 高对比度 */
  --text: #e0d8f0;          /* 淡紫白 - 主文字 */
  --text-bright: #f0ebf8;   /* 几乎白色 */
  --text2: #b8aed0;         /* 次要文字 */
  --text-muted: #8f83a8;    /* 辅助文字 */
  
  /* 强调色 - Charmbracelet 紫色系 */
  --accent: #a78bfa;        /* Charm 紫色 - 主强调色 */
  --accent2: #c084fc;       /* 亮紫色 - 次强调色 */
  --accent-hover: #8b5cf6;  /* 悬停状态 */
  
  /* 品牌色 */
  --charm-purple: #7D56F4;  /* Charmbracelet 官方紫色 */
  --charm-pink: #e879a8;    /* 品牌粉色 */
  
  /* 语义颜色 */
  --blue: #60a5fa;          /* 蓝色 */
  --green: #4ade80;         /* 绿色 */
  --red: #f87171;           /* 红色 */
  --orange: #fb923c;        /* 橙色 */
  --yellow: #fbbf24;        /* 黄色 */
  --purple: #a78bfa;        /* 紫色 */
  --cyan: #22d3ee;          /* 青绿色 */
  --pink: #e879a8;          /* 粉色 */
  
  /* 字体 */
  --font: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'PingFang SC', 'Microsoft YaHei', sans-serif;
  --mono: 'SF Mono', 'Fira Code', 'JetBrains Mono', 'Cascadia Code', monospace;
  
  /* 圆角与阴影 */
  --radius: 8px;
  --shadow: 0 4px 24px rgba(0, 0, 0, 0.4);
}

html { scroll-behavior: smooth; }

body {
  font-family: var(--font);
  background: var(--bg);
  color: var(--text);
  line-height: 1.8;
  font-size: 15px;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

a {
  color: var(--accent);
  text-decoration: none;
  transition: color 0.2s;
}

a:hover {
  color: var(--accent2);
  text-decoration: underline;
}

/* App Layout */
.app { display: flex; min-height: 100vh; }

/* Sidebar */
.sidebar {
  width: 280px;
  position: fixed;
  top: 0;
  left: 0;
  bottom: 0;
  background: var(--surface);
  border-right: 1px solid var(--border);
  display: flex;
  flex-direction: column;
  z-index: 100;
  transition: transform .3s;
}

.sb-head {
  padding: 24px 20px 18px;
  border-bottom: 1px solid var(--border);
  background: linear-gradient(180deg, rgba(125, 86, 244, 0.15) 0%, transparent 100%);
}

.sb-head h2 {
  font-size: 15px;
  font-weight: 700;
  color: var(--charm-purple);
  letter-spacing: 0.5px;
  display: flex;
  align-items: center;
  gap: 8px;
}

.sb-nav {
  flex: 1;
  overflow-y: auto;
  padding: 12px 0;
}

.sb-nav::-webkit-scrollbar { width: 4px; }
.sb-nav::-webkit-scrollbar-track { background: transparent; }
.sb-nav::-webkit-scrollbar-thumb { background: var(--border); border-radius: 2px; }
.sb-nav::-webkit-scrollbar-thumb:hover { background: var(--border-light); }

.nav-sec {
  padding: 14px 20px 6px;
  font-size: 11px;
  font-weight: 700;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 1.2px;
}

.nav-item {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 10px 20px;
  color: var(--text2);
  font-size: 14px;
  cursor: pointer;
  transition: all .15s;
  border-left: 3px solid transparent;
  position: relative;
}

.nav-item:hover {
  color: var(--text);
  background: rgba(125, 86, 244, 0.08);
}

.nav-item.active {
  color: var(--charm-purple);
  background: rgba(125, 86, 244, 0.15);
  border-left-color: var(--charm-purple);
  font-weight: 600;
}

.nav-item.active::after {
  content: '';
  position: absolute;
  right: 0;
  top: 50%;
  transform: translateY(-50%);
  width: 3px;
  height: 60%;
  background: var(--charm-purple);
  border-radius: 3px 0 0 3px;
}

.nav-ic {
  font-size: 16px;
  width: 20px;
  text-align: center;
  flex-shrink: 0;
}

/* Main content */
.main {
  margin-left: 280px;
  flex: 1;
  max-width: 960px;
  background: var(--bg);
  position: relative;
  padding-top: 3px;
}

.hero {
  padding: 60px 50px 45px;
  border-bottom: 1px solid var(--border);
  background: linear-gradient(180deg, rgba(125, 86, 244, 0.12) 0%, rgba(26, 22, 37, 0) 100%);
  position: relative;
  overflow: hidden;
}

.hero::before {
  content: '';
  position: absolute;
  top: 0;
  right: 0;
  width: 400px;
  height: 400px;
  background: radial-gradient(circle at center, rgba(125, 86, 244, 0.2) 0%, transparent 70%);
  pointer-events: none;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 14px;
  background: rgba(125, 86, 244, 0.2);
  border: 1px solid rgba(125, 86, 244, 0.4);
  border-radius: 24px;
  font-size: 13px;
  color: var(--charm-purple);
  font-weight: 600;
  margin-bottom: 20px;
}

.hero h1 {
  font-size: 36px;
  font-weight: 800;
  margin-bottom: 14px;
  background: linear-gradient(135deg, var(--charm-purple), var(--pink));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  position: relative;
}

.hero p {
  font-size: 17px;
  color: var(--text2);
  max-width: 620px;
  line-height: 1.7;
}

.hero-features {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 20px;
}

.hf-item {
  background: rgba(125, 86, 244, 0.15);
  border: 1px solid rgba(125, 86, 244, 0.3);
  padding: 8px 16px;
  border-radius: 20px;
  font-size: 13px;
  color: var(--charm-purple);
  font-weight: 600;
}

.content { padding: 40px 50px 100px; }

/* Section */
.section {
  margin-bottom: 56px;
  animation: fadeIn .4s ease;
}

.section-title {
  font-size: 24px;
  font-weight: 700;
  margin-bottom: 20px;
  padding-bottom: 12px;
  border-bottom: 1px solid var(--border);
  display: flex;
  align-items: center;
  gap: 12px;
  color: var(--text-bright);
}

.section-title .badge {
  font-size: 11px;
  padding: 3px 12px;
  border-radius: 14px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.badge-beginner { background: rgba(74, 222, 128, 0.2); color: var(--green); }
.badge-intermediate { background: rgba(96, 165, 250, 0.2); color: var(--blue); }
.badge-advanced { background: rgba(167, 139, 250, 0.2); color: var(--purple); }

/* Subsection */
.sub { margin-bottom: 32px; }

.sub h3 {
  font-size: 18px;
  font-weight: 700;
  margin-bottom: 12px;
  color: var(--text-bright);
  display: flex;
  align-items: center;
  gap: 8px;
}

.sub h3::before {
  content: '';
  width: 4px;
  height: 18px;
  background: var(--charm-purple);
  border-radius: 2px;
}

.sub p {
  color: var(--text2);
  font-size: 15px;
  margin-bottom: 12px;
  line-height: 1.8;
}

/* Info cards */
.card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 20px 24px;
  margin-bottom: 16px;
  transition: all .2s;
}

.card:hover {
  border-color: var(--charm-purple);
  box-shadow: 0 0 0 1px rgba(125, 86, 244, 0.15);
}

.card h4 {
  font-size: 15px;
  font-weight: 700;
  margin-bottom: 10px;
  color: var(--charm-purple);
  display: flex;
  align-items: center;
  gap: 8px;
}

.card p, .card li {
  font-size: 14px;
  color: var(--text2);
  line-height: 1.7;
}

.card ul { padding-left: 20px; margin-top: 8px; }
.card li { margin-bottom: 6px; }
.card li::marker { color: var(--charm-purple); }

/* Code blocks */
.code-block {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  margin: 16px 0;
  overflow: hidden;
}

.code-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 10px 18px;
  background: rgba(125, 86, 244, 0.08);
  border-bottom: 1px solid var(--border);
  font-size: 12px;
  color: var(--text2);
}

.code-header .lang {
  font-weight: 700;
  color: var(--charm-purple);
  text-transform: uppercase;
  font-size: 11px;
  letter-spacing: 0.5px;
}

.code-header .copy-btn {
  background: transparent;
  border: 1px solid var(--border);
  color: var(--text2);
  padding: 4px 12px;
  border-radius: 4px;
  cursor: pointer;
  font-size: 11px;
  font-family: var(--font);
  transition: all .2s;
}

.code-header .copy-btn:hover {
  border-color: var(--charm-purple);
  color: var(--charm-purple);
  background: rgba(125, 86, 244, 0.12);
}

.code-header .copy-btn.copied {
  border-color: var(--green);
  color: var(--green);
  background: rgba(74, 222, 128, 0.12);
}

.code-body, pre.code-body {
  display: block;
  padding: 18px 20px;
  margin: 0;
  overflow-x: auto;
  font-family: var(--mono);
  font-size: 14px;
  line-height: 1.7;
  color: var(--text2);
  white-space: pre;
  tab-size: 2;
  background: transparent;
  border: none;
}

.code-body::-webkit-scrollbar { height: 6px; }
.code-body::-webkit-scrollbar-track { background: var(--surface); }
.code-body::-webkit-scrollbar-thumb { background: var(--border); border-radius: 3px; }

/* Inline code */
code {
  font-family: var(--mono);
  background: rgba(125, 86, 244, 0.15);
  color: var(--accent);
  padding: 3px 8px;
  border-radius: 4px;
  font-size: 13px;
  border: 1px solid rgba(125, 86, 244, 0.25);
}

/* Tabs */
.tabs { margin: 16px 0; }

.tab-bar {
  display: flex;
  gap: 0;
  border-bottom: 1px solid var(--border);
  background: var(--surface);
  border-radius: var(--radius) var(--radius) 0 0;
  overflow: hidden;
}

.tab-btn {
  padding: 12px 24px;
  background: none;
  border: none;
  color: var(--text2);
  font-size: 14px;
  cursor: pointer;
  border-bottom: 2px solid transparent;
  transition: all .15s;
  font-family: var(--font);
  font-weight: 500;
}

.tab-btn:hover {
  color: var(--text);
  background: rgba(125, 86, 244, 0.08);
}

.tab-btn.active {
  color: var(--charm-purple);
  border-bottom-color: var(--charm-purple);
  background: rgba(125, 86, 244, 0.12);
}

.tab-panel {
  display: none;
  padding: 20px 0;
}

.tab-panel.active { display: block; }

/* Accordion */
.accordion { margin: 16px 0; }

.acc-item {
  border: 1px solid var(--border);
  border-radius: var(--radius);
  margin-bottom: 8px;
  overflow: hidden;
  background: var(--surface);
}

.acc-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 14px 20px;
  background: transparent;
  cursor: pointer;
  font-size: 15px;
  font-weight: 600;
  color: var(--text);
  transition: all .15s;
  user-select: none;
}

.acc-head:hover {
  background: rgba(125, 86, 244, 0.08);
  color: var(--charm-purple);
}

.acc-head .arrow {
  transition: transform .2s;
  color: var(--text-muted);
  font-size: 12px;
}

.acc-item.open .acc-head .arrow {
  transform: rotate(90deg);
  color: var(--charm-purple);
}

.acc-body {
  max-height: 0;
  overflow: hidden;
  transition: max-height .3s ease;
}

.acc-item.open .acc-body { max-height: 3000px; }

.acc-inner {
  padding: 18px 20px;
  border-top: 1px solid var(--border);
  background: rgba(0, 0, 0, 0.15);
}

/* SVG container */
.svg-wrap {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 28px;
  margin: 20px 0;
  text-align: center;
  overflow-x: auto;
}

.svg-wrap svg {
  max-width: 100%;
  height: auto;
  filter: brightness(1.1);
}

.svg-caption {
  font-size: 13px;
  color: var(--text-muted);
  margin-top: 14px;
  font-style: italic;
}

/* Table */
.tbl-wrap {
  overflow-x: auto;
  margin: 16px 0;
  border-radius: var(--radius);
  border: 1px solid var(--border);
}

table {
  width: 100%;
  border-collapse: collapse;
  font-size: 14px;
}

th {
  background: var(--surface);
  text-align: left;
  padding: 14px 18px;
  border-bottom: 1px solid var(--border);
  font-weight: 700;
  font-size: 12px;
  color: var(--charm-purple);
  text-transform: uppercase;
  letter-spacing: 0.8px;
}

td {
  padding: 14px 18px;
  border-bottom: 1px solid var(--border);
  color: var(--text2);
  background: var(--bg);
}

tr:last-child td { border-bottom: none; }

tr:hover td { background: var(--surface); }

td code {
  background: rgba(125, 86, 244, 0.12);
  border-color: transparent;
}

/* Tip/Warning/Info boxes */
.tip {
  border-left: 4px solid var(--green);
  background: rgba(74, 222, 128, 0.08);
  padding: 16px 20px;
  border-radius: 0 var(--radius) var(--radius) 0;
  margin: 18px 0;
  font-size: 14px;
  color: var(--text2);
}

.tip strong {
  color: var(--green);
  display: flex;
  align-items: center;
  gap: 6px;
  margin-bottom: 4px;
}

.warn {
  border-left: 4px solid var(--red);
  background: rgba(248, 113, 113, 0.08);
  padding: 16px 20px;
  border-radius: 0 var(--radius) var(--radius) 0;
  margin: 18px 0;
  font-size: 14px;
  color: var(--text2);
}

.warn strong {
  color: var(--red);
  display: flex;
  align-items: center;
  gap: 6px;
  margin-bottom: 4px;
}

.info {
  border-left: 4px solid var(--blue);
  background: rgba(96, 165, 250, 0.08);
  padding: 16px 20px;
  border-radius: 0 var(--radius) var(--radius) 0;
  margin: 18px 0;
  font-size: 14px;
  color: var(--text2);
}

.info strong {
  color: var(--blue);
  display: flex;
  align-items: center;
  gap: 6px;
  margin-bottom: 4px;
}

/* Progress tracker */
.progress-bar {
  position: fixed;
  top: 0;
  left: 280px;
  right: 0;
  height: 3px;
  background: var(--surface);
  z-index: 200;
}

/* Add scroll padding for anchor links */
html {
  scroll-padding-top: 20px;
}

.progress-fill {
  height: 100%;
  background: linear-gradient(90deg, var(--charm-purple), var(--pink));
  width: 0%;
  transition: width .3s;
}

/* Mobile sidebar toggle */
.sb-toggle {
  display: none;
  position: fixed;
  bottom: 24px;
  right: 24px;
  z-index: 150;
  width: 52px;
  height: 52px;
  border-radius: 50%;
  background: var(--charm-purple);
  color: white;
  border: none;
  font-size: 22px;
  cursor: pointer;
  box-shadow: var(--shadow);
  transition: transform .2s;
}

.sb-toggle:hover {
  transform: scale(1.05);
}

/* Scroll to top */
.scroll-top {
  position: fixed;
  bottom: 24px;
  right: 24px;
  z-index: 90;
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background: var(--surface);
  border: 1px solid var(--border);
  color: var(--text2);
  font-size: 18px;
  cursor: pointer;
  opacity: 0;
  transition: all .3s;
  display: flex;
  align-items: center;
  justify-content: center;
}

.scroll-top.visible { opacity: 1; }

.scroll-top:hover {
  border-color: var(--charm-purple);
  color: var(--charm-purple);
  background: rgba(125, 86, 244, 0.12);
}

/* Search */
.search-wrap {
  padding: 12px 20px;
  border-bottom: 1px solid var(--border);
}

.search-input {
  width: 100%;
  padding: 10px 16px;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 6px;
  color: var(--text);
  font-size: 14px;
  outline: none;
  transition: all .2s;
  font-family: var(--font);
}

.search-input:focus {
  border-color: var(--charm-purple);
  box-shadow: 0 0 0 3px rgba(125, 86, 244, 0.2);
}

.search-input::placeholder { color: var(--text-muted); }

/* Feature grid */
.feature-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 16px;
  margin: 20px 0;
}

/* Install methods */
.install-method {
  margin: 20px 0;
  padding: 20px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
}

.install-method h4 {
  font-size: 15px;
  font-weight: 700;
  margin-bottom: 12px;
  color: var(--charm-purple);
}

.install-method .code-block {
  margin: 0;
}

.feature-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 20px;
  transition: all .2s;
}

.feature-card:hover {
  border-color: var(--charm-purple);
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.3);
}

.feature-card h4 {
  font-size: 15px;
  font-weight: 700;
  margin-bottom: 8px;
  color: var(--charm-purple);
  display: flex;
  align-items: center;
  gap: 8px;
}

.feature-card p {
  font-size: 13px;
  color: var(--text2);
  line-height: 1.6;
}

/* Comparison table */
.comparison-table {
  margin: 24px 0;
  overflow-x: auto;
}

.comparison-table table { font-size: 13px; }

.comparison-table th {
  background: var(--surface2);
  color: var(--text-bright);
  font-size: 13px;
  text-transform: none;
  letter-spacing: 0;
}

.comparison-table td {
  text-align: center;
  vertical-align: middle;
}

.comparison-table td:first-child {
  text-align: left;
  font-weight: 600;
  color: var(--text);
}

.comparison-table .check { color: var(--green); font-size: 16px; }
.comparison-table .cross { color: var(--text-muted); font-size: 16px; }
.comparison-table .partial { color: var(--yellow); font-size: 16px; }

/* Animations */
@keyframes fadeIn {
  from { opacity: 0; transform: translateY(12px); }
  to { opacity: 1; transform: translateY(0); }
}

.section { animation: fadeIn .4s ease; }

/* Lists */
ul, ol {
  padding-left: 24px;
  margin: 12px 0;
  color: var(--text2);
}

li {
  margin-bottom: 8px;
  line-height: 1.7;
}

li::marker { color: var(--charm-purple); }

/* Strong text */
strong {
  color: var(--text-bright);
  font-weight: 600;
}

/* Footer */
.footer {
  padding: 40px 50px;
  border-top: 1px solid var(--border);
  text-align: center;
  font-size: 13px;
  color: var(--text-muted);
  background: var(--surface);
}

.footer a {
  color: var(--charm-purple);
  margin: 0 8px;
}

/* Author attribution */
.author-attr {
  font-size: 12px;
  color: var(--text-muted);
  padding: 16px 20px;
  background: var(--surface);
  border-radius: var(--radius);
  margin-top: 24px;
  border-left: 3px solid var(--charm-purple);
}

.author-attr strong {
  color: var(--charm-purple);
}

/* Responsive */
@media (max-width: 900px) {
  .sidebar { transform: translateX(-100%); }
  .sidebar.open { transform: translateX(0); }
  .main { margin-left: 0; }
  .sb-toggle { display: flex; align-items: center; justify-content: center; }
  .hero { padding: 40px 24px; }
  .hero h1 { font-size: 28px; }
  .content { padding: 28px 24px 80px; }
  .progress-bar { left: 0; }
  .section-title { font-size: 20px; }
  .footer { padding: 30px 24px; }
}

/* Print styles */
@media print {
  .sidebar, .progress-bar, .sb-toggle, .scroll-top { display: none; }
  .main { margin-left: 0; max-width: 100%; }
  body { background: white; color: black; }
  .card, .code-block, .acc-item { border: 1px solid #ccc; }
}