/* ===== 低熵体的笔记本 - 完整样式 ===== */
/* 与工具箱 lowentro.cn 风格统一 */

/* ===== 颜色变量 ===== */
:root {
  --md-text-font: "Noto Serif SC", serif;
  --md-code-font: "JetBrains Mono", monospace;
}

[data-md-color-scheme="default"] {
  --bg: #f8f5f0;
  --bg-pattern: repeating-linear-gradient(0deg, transparent, transparent 3px, rgba(201,169,110,0.08) 3px, rgba(201,169,110,0.08) 6px),
                repeating-linear-gradient(90deg, transparent, transparent 3px, rgba(201,169,110,0.06) 3px, rgba(201,169,110,0.06) 6px);

  --md-primary-fg-color: #f8f5f0;
  --md-primary-bg-color: #2c2c2c;
  --md-default-bg-color: #f8f5f0;
  --md-typeset-color: #2c2c2c;
  --md-typeset-a-color: #8a7a6a;
  --md-typeset-table-color: rgba(201,169,110,0.3);
  --md-code-fg-color: #2c2c2c;
  --md-code-bg-color: rgba(255,255,255,0.7);
  --md-footer-fg-color: #a09080;
  --md-footer-bg-color: #f8f5f0;
  --md-footer-bg-color--dark: #f8f5f0;
  --md-footer-fg-color--light: #8a7a6a;
  --md-footer-fg-color--lighter: #a09080;
  --md-accent-fg-color: #b03a2e;
  --md-default-fg-color--light: #2c2c2c;
  --gold: #c9a96e;
  --red: #b03a2e;
  --shadow: rgba(201,169,110,0.2);
}

[data-md-color-scheme="slate"] {
  --bg: #121212;
  --bg-pattern: none;

  --md-primary-fg-color: #121212;
  --md-primary-bg-color: #e8e8ee;
  --md-default-bg-color: #121212;
  --md-default-bg-color--light: #1a1a1a;
  --md-typeset-color: #e8e8ee;
  --md-typeset-a-color: #9a9aaa;
  --md-typeset-table-color: rgba(201,169,110,0.15);
  --md-code-fg-color: #e8e8ee;
  --md-code-bg-color: rgba(30,30,40,0.85);
  --md-footer-fg-color: #707080;
  --md-footer-bg-color: #121212;
  --md-footer-bg-color--dark: #121212;
  --md-footer-fg-color--light: #9a9aaa;
  --md-footer-fg-color--lighter: #707080;
  --md-accent-fg-color: #d45a40;
  --md-default-fg-color--light: #e8e8ee;
  --gold: #b8945a;
  --red: #d45a40;
  --shadow: rgba(0,0,0,0.4);
}

/* ===== 背景（智绘风格：暖纸色） ===== */
body {
  background: var(--md-default-bg-color) !important;
  background-image: var(--bg-pattern) !important;
}

.md-grid {
  max-width: 64rem;
}

/* ===== 字体 ===== */
html {
  font-size: 100%;
}
@media screen and (min-width: 960px) {
  html { font-size: 105%; }
}

.md-typeset {
  font-size: .7rem;
  line-height: 1.75;
}

.md-typeset h1, .md-typeset h2, .md-typeset h3 {
  font-weight: 600;
  letter-spacing: 0.02em;
}

.md-typeset h1 {
  font-family: 'Noto Serif SC', serif;
  border-bottom: 1px solid var(--md-typeset-table-color);
  padding-bottom: 0.3rem;
}

.md-typeset a {
  transition: color 0.2s ease;
}
.md-typeset a:hover {
  color: var(--md-accent-fg-color);
}

.md-typeset code:not(pre code) {
  border-radius: 4px;
  padding: 0 0.3em;
}

.md-typeset pre > code {
  border-radius: 8px;
}

.md-typeset blockquote {
  border-left: 3px solid var(--gold);
  color: var(--md-typeset-a-color);
}

.md-typeset .admonition {
  border-radius: 8px;
  font-size: 0.85rem;
}

/* ===== Header ===== */
.md-header {
  background: var(--md-default-bg-color) !important;
  box-shadow: 0 1px 6px rgba(201,169,110,0.12);
  color: var(--md-typeset-color) !important;
}

.md-tabs {
  background: var(--md-default-bg-color) !important;
  color: var(--md-typeset-color);
  border-bottom: 1px solid var(--md-typeset-table-color);
}

.md-tabs__link {
  color: var(--md-typeset-color) !important;
  opacity: 0.7;
}
.md-tabs__link--active, .md-tabs__link:hover {
  opacity: 1;
}

.md-header__title {
  color: var(--md-typeset-color) !important;
}

/* ===== Search ===== */
.md-search__input {
  border-radius: 8px !important;
  background-color: var(--md-code-bg-color) !important;
  color: var(--md-typeset-color) !important;
}

/* ===== Navigation ===== */
.md-nav {
  color: var(--md-typeset-color);
}

.md-nav--primary .md-nav__title {
  background: var(--md-primary-fg-color);
  font-family: 'Noto Serif SC', serif;
  font-weight: 600;
}

.md-nav__link {
  border-radius: 4px;
  transition: all 0.15s ease;
}
.md-nav__link:hover {
  background: var(--md-code-bg-color);
}

/* ===== Footer ===== */
.md-footer {
  border-top: 1px solid var(--md-typeset-table-color);
}
.md-footer-meta {
  border: none;
}

/* ===== Scrollbar ===== */
.md-sidebar__scrollwrap::-webkit-scrollbar {
  width: 6px;
}
.md-sidebar__scrollwrap::-webkit-scrollbar-thumb {
  background: rgba(201,169,110,0.3);
  border-radius: 3px;
}

/* ===== 主题切换按钮 (重写 Material 默认) ===== */
.md-header__options {
  display: flex;
  align-items: center;
  margin-right: 0.5rem;
}

.md-header-nav__scheme {
  display: flex;
  gap: 2px;
}

.md-header-nav__scheme a {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  border-radius: 50%;
  border: 1px solid var(--md-typeset-table-color);
  background: var(--md-code-bg-color);
  color: var(--md-typeset-color);
  font-size: 1.1rem;
  cursor: pointer;
  transition: all 0.3s;
  text-decoration: none !important;
}

.md-header-nav__scheme a:hover {
  border-color: var(--gold);
  box-shadow: 0 4px 15px var(--shadow);
  transform: scale(1.1);
}

.theme-btn-fixed {
  display: none !important;
}

/* ================================================================== */
/* 呼吸光点效果 - 只在首页显示 */
/* ================================================================== */
.home-particle-container {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  pointer-events: none;
  z-index: 0;
  overflow: hidden;
}

.particle {
  position: absolute;
  width: 4px;
  height: 4px;
  background: var(--gold);
  border-radius: 50%;
  opacity: 0;
  animation: particleFloat 6s ease-in-out infinite;
}

.particle:nth-child(1) { left: 10%; top: 20%; animation-delay: 0s; }
.particle:nth-child(2) { left: 25%; top: 60%; animation-delay: 1.5s; }
.particle:nth-child(3) { left: 45%; top: 15%; animation-delay: 0.8s; }
.particle:nth-child(4) { left: 65%; top: 45%; animation-delay: 2.2s; }
.particle:nth-child(5) { left: 80%; top: 70%; animation-delay: 0.3s; }
.particle:nth-child(6) { left: 50%; top: 80%; animation-delay: 1.8s; }
.particle:nth-child(7) { left: 30%; top: 35%; animation-delay: 3s; }
.particle:nth-child(8) { left: 70%; top: 25%; animation-delay: 2.5s; }
.particle:nth-child(9) { left: 15%; top: 85%; animation-delay: 1s; }
.particle:nth-child(10) { left: 90%; top: 50%; animation-delay: 3.5s; }
.particle:nth-child(11) { left: 5%; top: 50%; animation-delay: 4s; }
.particle:nth-child(12) { left: 55%; top: 5%; animation-delay: 0.5s; }

@keyframes particleFloat {
  0%, 100% {
    opacity: 0;
    transform: translateY(0) scale(0.5);
  }
  20% {
    opacity: 0.6;
    transform: translateY(-20px) scale(1.2);
  }
  50% {
    opacity: 0.8;
    transform: translateY(-40px) scale(1);
  }
  80% {
    opacity: 0.3;
    transform: translateY(-60px) scale(0.6);
  }
}

/* ===== 首页动画 ===== */
.fade-in-up {
  opacity: 0;
  transform: translateY(20px);
  animation: fadeInUp 0.6s ease-out forwards;
}

@keyframes fadeInUp {
  to { opacity: 1; transform: translateY(0); }
}

/* ===== 主页欢迎区 ===== */
.home-welcome {
  position: relative;
  z-index: 1;
}

/* ===== 返回工具箱按钮 ===== */
.back-to-toolbox {
  font-family: 'Noto Sans SC', sans-serif;
  font-size: 0.8rem;
  padding: 0.5rem 0 0.2rem;
  border-bottom: 1px solid var(--md-typeset-table-color);
  margin-bottom: 1rem;
}
.back-to-toolbox a {
  color: var(--md-typeset-a-color);
  text-decoration: none;
  transition: color 0.2s;
}
.back-to-toolbox a:hover {
  color: var(--md-accent-fg-color);
}
.back-to-toolbox .sep {
  color: var(--md-typeset-table-color);
  margin: 0 0.4rem;
}