/* Hallownest · 圣巢 — 空洞骑士主题样式 */

/* ── CSS 变量 ────────────────────────────────────────────── */
:root {
  /* 基础色 */
  --bg: #000000;
  --bg-soft: #0b0c0f;
  --bg-card: #0f1115;
  --bg-elevated: #14161b;
  --border: rgba(160, 170, 190, .12);
  --border-strong: rgba(160, 170, 190, .18);

  /* 文字 */
  --text: #d4cfc0;
  --text-dim: #8a8578;
  --text-muted: #5c5850;

  /* 强调色（由 base.html 内联覆盖） */
  --accent: #c4b998;
  --accent-strong: #d4cfc0;
  --accent-glow: rgba(196, 185, 152, .2);

  /* 字体 */
  --font-serif: Georgia, "Noto Serif SC", "Source Han Serif SC", "Songti SC", serif;
  --font-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "PingFang SC", "Microsoft YaHei", sans-serif;

  --sidebar-w: 250px;
}

/* ── 全局重置 ────────────────────────────────────────────── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; font-size: 16px; }
body {
  font-family: var(--font-sans);
  font-size: 1rem;
  line-height: 1.75;
  color: var(--text);
  background: var(--bg);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}
a { color: var(--accent); text-decoration: none; transition: color .2s; }
a:hover { color: var(--accent-strong); }
img { max-width: 100%; height: auto; }
h1, h2, h3, h4 { font-family: var(--font-serif); font-weight: 700; color: var(--text); }
h1 { font-size: 1.75rem; }
h2 { font-size: 1.35rem; }
h3 { font-size: 1.15rem; }
button { cursor: pointer; font-family: inherit; }

/* ── 布局 ────────────────────────────────────────────────── */
.layout { position: relative; z-index: 1; }
.main { margin-left: var(--sidebar-w); min-height: 100vh; }
.container { max-width: 780px; padding: 48px 40px 20px; }

/* ── 侧栏（桌面固定左侧） ────────────────────────────────── */
.sidebar {
  position: fixed;
  left: 0;
  top: 0;
  bottom: 0;
  width: var(--sidebar-w);
  z-index: 50;
  display: flex;
  flex-direction: column;
  padding: 36px 22px 22px;
  background: var(--bg-soft);
  border-right: 1px solid var(--border);
  overflow-y: auto;
}

.sidebar-logo {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 6px;
  color: var(--text);
}
.sidebar-logo:hover { color: var(--accent); }
.sidebar-logo .logo-img {
  flex: none;
  width: 40px;
  height: 40px;
  border-radius: 8px;
  object-fit: cover;
  border: 1px solid var(--border-strong);
}
.sidebar-logo .logo-text {
  font-family: var(--font-serif);
  font-weight: 700;
  font-size: 1.1rem;
  letter-spacing: .08em;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.sidebar-subtitle {
  font-size: .8rem;
  color: var(--text-dim);
  letter-spacing: .06em;
  margin-bottom: 24px;
  font-family: var(--font-serif);
}

.sidebar-nav { display: flex; flex-direction: column; margin-bottom: 20px; }
.sidebar-nav a {
  display: flex;
  align-items: baseline;
  gap: 8px;
  padding: 9px 4px;
  color: var(--text-dim);
  font-size: .92rem;
  letter-spacing: .05em;
  border-bottom: 1px solid var(--border);
  transition: color .2s, padding-left .2s;
}
.sidebar-nav a::before { content: "◆"; font-size: 6px; color: var(--accent); flex: none; }
.sidebar-nav a:hover, .sidebar-nav a.active { color: var(--accent); padding-left: 8px; }

.sidebar-actions { display: flex; flex-direction: column; gap: 6px; margin-bottom: 18px; }
.sidebar-btn {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 8px 10px;
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  border-radius: 8px;
  color: var(--text-dim);
  font-size: .85rem;
  text-align: left;
  transition: color .2s, border-color .2s, box-shadow .2s;
}
.sidebar-btn:hover { color: var(--accent); border-color: var(--accent); box-shadow: 0 0 12px var(--accent-glow); }
.icon { font-size: 15px; color: var(--accent); }

/* 音乐播放器（桌面侧栏底部） */
.music-player { margin-top: auto; padding-top: 16px; }
.music-frame { border-radius: 8px; max-width: 100%; }

/* ── 顶部菜单栏（移动端） ────────────────────────────────── */
.topbar { display: none; }
.top-drawer { display: none; }

/* ── 首页 Hero ───────────────────────────────────────────── */
.hero {
  text-align: center;
  padding: 24px 0 36px;
  margin-bottom: 10px;
}
.hero-title {
  font-family: var(--font-serif);
  font-size: 2rem;
  font-weight: 700;
  letter-spacing: .12em;
  white-space: nowrap;
  margin-bottom: 8px;
}
.hero-subtitle {
  font-size: .95rem;
  color: var(--text-dim);
  letter-spacing: .08em;
  font-family: var(--font-serif);
}
.hero-meta {
  margin-top: 12px;
  font-size: .82rem;
  color: var(--text-muted);
  letter-spacing: .05em;
}

/* ── 文章卡片 ────────────────────────────────────────────── */
.post-list { display: flex; flex-direction: column; }
.post-card {
  padding: 22px 0;
  border-bottom: 1px solid var(--border);
}
.post-card:last-child { border-bottom: none; }
.post-card-title {
  font-family: var(--font-serif);
  font-size: 1.2rem;
  font-weight: 700;
  line-height: 1.4;
  margin-bottom: 6px;
}
.post-card-title a { color: var(--text); }
.post-card-title a:hover { color: var(--accent); }
.post-card-meta {
  display: flex;
  align-items: center;
  gap: 6px;
  flex-wrap: wrap;
  font-size: .78rem;
  color: var(--text-muted);
  margin-bottom: 8px;
}
.post-card-date { font-family: var(--font-serif); }
.post-card-tags { display: flex; gap: 6px; }
.post-card-tags .tag { color: var(--text-dim); font-size: .75rem; transition: color .2s; }
.post-card-tags .tag:hover { color: var(--accent); }
.post-card-excerpt {
  font-size: .88rem;
  color: var(--text-dim);
  line-height: 1.7;
  display: -webkit-box;
  -webkit-line-clamp: 3;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

/* ── 文章详情页 ──────────────────────────────────────────── */
.post-article { padding-bottom: 24px; }
.post-header { margin-bottom: 28px; }
.post-title {
  font-family: var(--font-serif);
  font-size: 1.75rem;
  font-weight: 700;
  line-height: 1.35;
  letter-spacing: .05em;
  margin-bottom: 10px;
}
.post-meta {
  display: flex;
  align-items: center;
  gap: 8px;
  flex-wrap: wrap;
  font-size: .82rem;
  color: var(--text-muted);
  font-family: var(--font-serif);
}
.post-tags { display: flex; gap: 4px; }
.post-tags .tag { color: var(--text-dim); font-size: .78rem; }
.post-tags .tag:hover { color: var(--accent); }

.post-content {
  font-size: .95rem;
  line-height: 1.85;
  color: var(--text);
}
.post-content p { margin-bottom: 1.2em; }
.post-content h2, .post-content h3 { margin: 1.6em 0 .6em; }
.post-content h2 { font-size: 1.3rem; }
.post-content h3 { font-size: 1.1rem; }
.post-content a { border-bottom: 1px solid var(--accent); padding-bottom: 1px; }
.post-content a:hover { border-color: var(--accent-strong); }
.post-content img { border-radius: 8px; margin: 1em 0; }
.post-content blockquote {
  margin: 1.2em 0;
  padding: 10px 16px;
  background: var(--bg-elevated);
  border-left: 3px solid var(--accent);
  color: var(--text-dim);
  font-size: .9rem;
  border-radius: 0 8px 8px 0;
}
.post-content code {
  font-size: .85em;
  padding: 2px 6px;
  background: var(--bg-elevated);
  border-radius: 4px;
  color: var(--accent-strong);
}
.post-content pre {
  margin: 1.2em 0;
  padding: 18px 20px;
  background: #f5f5f5;
  border: 1px solid #e0e0e0;
  border-radius: 10px;
  overflow-x: auto;
  font-size: .84rem;
  line-height: 1.65;
  color: #333;
}
.post-content pre code {
  padding: 0;
  background: transparent;
  color: #333;
  font-size: inherit;
}
.post-content ul, .post-content ol { margin: .8em 0; padding-left: 1.5em; }
.post-content li { margin-bottom: .3em; }

/* 文章导航（上一篇/下一篇） */
.post-nav {
  display: flex;
  gap: 16px;
  padding: 20px 0;
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
  margin-bottom: 24px;
}
.post-nav-item { flex: 1; min-width: 0; }
.post-nav-label { display: block; font-size: .72rem; color: var(--text-muted); margin-bottom: 4px; letter-spacing: .05em; }
.post-nav-item a { font-size: .88rem; color: var(--text-dim); }
.post-nav-item a:hover { color: var(--accent); }
.post-nav-none { font-size: .85rem; color: var(--text-muted); }
.post-nav-next { text-align: right; }

/* ── 分页 ────────────────────────────────────────────────── */
.pagination { padding: 28px 0; }
.pagination-inner { display: flex; justify-content: space-between; }
.pagination-prev, .pagination-next { color: var(--text-dim); font-size: .88rem; padding: 6px 0; }
.pagination-prev:hover, .pagination-next:hover { color: var(--accent); }
.pagination-prev.disabled, .pagination-next.disabled { color: var(--text-muted); pointer-events: none; }

/* ── 搜索弹窗 ────────────────────────────────────────────── */
.search-modal {
  display: none;
  position: fixed;
  inset: 0;
  z-index: 200;
  align-items: flex-start;
  justify-content: center;
  padding-top: 12vh;
}
.search-modal.is-open { display: flex; }
.search-modal-bg {
  position: absolute;
  inset: 0;
  background: rgba(0, 0, 0, .75);
  backdrop-filter: blur(4px);
}
.search-modal-content {
  position: relative;
  z-index: 1;
  width: 580px;
  max-width: 94vw;
  background: var(--bg-soft);
  border: 1px solid var(--border-strong);
  border-radius: 14px;
  box-shadow: 0 20px 60px rgba(0, 0, 0, .6);
  overflow: hidden;
  max-height: 70vh;
  display: flex;
  flex-direction: column;
}
.search-input-wrapper {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 14px 16px;
  border-bottom: 1px solid var(--border);
}
.search-icon { width: 18px; height: 18px; fill: var(--text-muted); flex: none; }
.search-input {
  flex: 1;
  background: transparent;
  border: none;
  outline: none;
  color: var(--text);
  font-size: 1rem;
  font-family: inherit;
  min-width: 0;
}
.search-input::placeholder { color: var(--text-muted); }
.search-close {
  flex: none;
  background: none;
  border: none;
  color: var(--text-muted);
  font-size: 1.3rem;
  padding: 2px 6px;
  border-radius: 6px;
}
.search-close:hover { color: var(--accent); background: var(--bg-elevated); }

.search-results { flex: 1; overflow-y: auto; padding: 10px 8px; }
.search-empty {
  text-align: center;
  color: var(--text-muted);
  font-size: .85rem;
  padding: 28px 10px;
  font-family: var(--font-serif);
}
.search-result-item {
  display: block;
  padding: 10px 12px;
  border-radius: 8px;
  transition: background .15s;
}
.search-result-item:hover, .search-result-item.is-active { background: var(--bg-elevated); }
.search-result-title { display: block; font-size: .92rem; color: var(--text); font-family: var(--font-serif); }
.search-result-meta { display: block; font-size: .72rem; color: var(--text-muted); margin-top: 2px; }
.search-result-title mark,
.search-result-meta mark {
  background: var(--accent);
  color: var(--bg);
  border-radius: 2px;
  padding: 0 2px;
}

.search-shortcuts {
  display: flex;
  gap: 16px;
  padding: 8px 16px;
  border-top: 1px solid var(--border);
  font-size: .68rem;
  color: var(--text-muted);
}
.search-shortcuts kbd {
  display: inline-block;
  padding: 1px 5px;
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  border-radius: 4px;
  font-size: .65rem;
  color: var(--text-dim);
  font-family: var(--font-sans);
}

/* ── 评论 ────────────────────────────────────────────────── */
.comments-section {
  padding: 20px 0;
  margin-top: 8px;
}
.comments-title {
  font-family: var(--font-serif);
  font-size: 1.15rem;
  font-weight: 700;
  letter-spacing: .06em;
  margin-bottom: 16px;
  color: var(--text);
}
.comments-placeholder {
  padding: 24px 16px;
  text-align: center;
  color: var(--text-muted);
  font-size: .84rem;
  font-family: var(--font-serif);
  background: var(--bg-elevated);
  border-radius: 10px;
  border: 1px solid var(--border);
}

/* ── 页脚 ────────────────────────────────────────────────── */
.content-footer {
  text-align: center;
  padding: 20px 0 28px;
  font-size: .76rem;
  color: var(--text-muted);
  letter-spacing: .04em;
}
.content-footer a { color: var(--text-dim); }
.content-footer a:hover { color: var(--accent); }

/* ── 404 ─────────────────────────────────────────────────── */
.notfound-page {
  text-align: center;
  padding: 60px 10px;
}
.notfound-icon {
  font-size: 3.5rem;
  color: var(--accent);
  margin-bottom: 16px;
}
.notfound-title {
  font-family: var(--font-serif);
  font-size: 1.5rem;
  margin-bottom: 12px;
}
.notfound-desc {
  color: var(--text-dim);
  font-size: .9rem;
  max-width: 400px;
  margin: 0 auto 24px;
}
.notfound-link {
  display: inline-block;
  padding: 8px 20px;
  border: 1px solid var(--accent);
  border-radius: 8px;
  color: var(--accent);
  font-size: .88rem;
  transition: background .2s, color .2s;
}
.notfound-link:hover { background: var(--accent); color: var(--bg); }

/* ── 友链 ────────────────────────────────────────────────── */
.links-list { display: flex; flex-direction: column; gap: 10px; }
.link-card {
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 14px 16px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 10px;
  transition: border-color .2s, box-shadow .2s;
}
.link-card:hover { border-color: var(--accent); box-shadow: 0 0 14px var(--accent-glow); }
.link-avatar {
  flex: none;
  width: 44px;
  height: 44px;
  border-radius: 50%;
  object-fit: cover;
}
.link-info { display: flex; flex-direction: column; min-width: 0; }
.link-name { font-size: .92rem; color: var(--text); font-weight: 600; }
.link-desc { font-size: .78rem; color: var(--text-muted); margin-top: 2px; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }

/* ── 闪念 ────────────────────────────────────────────────── */
.memos-list { display: flex; flex-direction: column; gap: 14px; }
.memo-card {
  padding: 16px 18px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 10px;
}
.memo-date {
  display: block;
  font-size: .72rem;
  color: var(--text-muted);
  font-family: var(--font-serif);
  margin-bottom: 6px;
}
.memo-content { font-size: .88rem; line-height: 1.7; color: var(--text); }
.memo-content p { margin-bottom: .4em; }

/* ── 标签云 ──────────────────────────────────────────────── */
.tag-cloud { display: flex; flex-wrap: wrap; gap: 10px; }
.tag-cloud-item {
  padding: 5px 12px;
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  border-radius: 6px;
  color: var(--text-dim);
  font-size: .85rem;
  transition: color .2s, border-color .2s;
}
.tag-cloud-item:hover { color: var(--accent); border-color: var(--accent); }

/* ── 通用 ────────────────────────────────────────────────── */
.page-title {
  font-family: var(--font-serif);
  font-size: 1.6rem;
  font-weight: 700;
  letter-spacing: .08em;
  margin-bottom: 8px;
}
.page-desc {
  font-size: .85rem;
  color: var(--text-muted);
  font-family: var(--font-serif);
  margin-bottom: 24px;
}
.about-content { font-size: .95rem; line-height: 1.85; }
.about-content p { margin-bottom: 1em; }
.no-results { text-align: center; color: var(--text-muted); padding: 36px 0; font-family: var(--font-serif); font-size: .88rem; }

/* ── 归档 ────────────────────────────────────────────────── */
.archives-list { display: flex; flex-direction: column; }
.archive-item {
  display: flex;
  align-items: baseline;
  gap: 14px;
  padding: 8px 0;
  border-bottom: 1px solid var(--border);
}
.archive-item:last-child { border-bottom: none; }
.archive-date {
  flex: none;
  font-size: .78rem;
  color: var(--text-muted);
  font-family: var(--font-serif);
  white-space: nowrap;
  min-width: 160px;
}
.archive-title { font-size: .92rem; color: var(--text); }
.archive-title:hover { color: var(--accent); }

/* ── 抽屉遮罩层（移动端） ────────────────────────────────── */
.drawer-backdrop {
  display: none;
  position: fixed;
  inset: 0;
  z-index: 54;
  background: rgba(0,0,0,.35);
}

/* ── 响应式：移动端（统合） ────────────────────────────────── */
@media (max-width: 980px) {
  .sidebar { display: none; }
  .main { margin-left: 0; }
  .container { padding: 24px 16px 20px; }

  .hero { padding: 8px 0 24px; }
  .hero-title { font-size: 1.5rem; letter-spacing: .08em; }
  .hero-subtitle { font-size: .85rem; }

  .post-title { font-size: 1.4rem; }
  .post-content { font-size: .9rem; }
  .post-nav { flex-direction: column; gap: 10px; }
  .post-nav-next { text-align: left; }

  .search-modal-content { max-width: 96vw; max-height: 80vh; }

  /* 顶栏 */
  .topbar {
    display: flex;
    position: sticky;
    top: 0;
    z-index: 60;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
    padding: 10px 16px;
    background: var(--bg-soft);
    border-bottom: 1px solid var(--border);
  }
  .topbar-logo {
    display: flex;
    align-items: center;
    gap: 10px;
    color: var(--text);
    min-width: 0;
    transition: opacity .3s ease;
  }
  .topbar-logo .logo-img {
    flex: none;
    width: 36px;
    height: 36px;
    border-radius: 8px;
    object-fit: cover;
    border: 1px solid var(--border-strong);
  }
  .topbar-logo .logo-text {
    font-family: var(--font-serif);
    font-weight: 700;
    font-size: 16px;
    letter-spacing: .08em;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
  }
  .topbar.is-menu-open .topbar-logo { opacity: .4; }
  .topbar.is-menu-open .topbar-toggle .hamburger { opacity: .45; }

  .topbar-toggle {
    flex: none;
    display: flex;
    flex-direction: column;
    gap: 5px;
    padding: 10px 12px;
    background: transparent;
    border: 1px solid var(--border);
    border-radius: 8px;
  }
  .topbar-toggle .hamburger {
    width: 18px;
    height: 2px;
    background: var(--text-dim);
    border-radius: 2px;
    transition: transform .25s ease, opacity .25s ease, background .25s ease;
  }
  .topbar-toggle.is-open .hamburger { background: var(--accent); }
  .topbar-toggle.is-open .hamburger:nth-child(1) { transform: translateY(7px) rotate(45deg); }
  .topbar-toggle.is-open .hamburger:nth-child(2) { opacity: 0; }
  .topbar-toggle.is-open .hamburger:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

  /* 抽屉 */
  .top-drawer:not([hidden]) { display: block; }
  .drawer-backdrop:not([hidden]) { display: block; }
  .top-drawer {
    position: fixed;
    top: 56px;
    left: 0;
    right: 0;
    z-index: 55;
    padding: 8px 16px 16px;
    background: var(--bg-soft);
    border-bottom: 1px solid var(--border);
    box-shadow: 0 18px 34px rgba(0, 0, 0, .5);
    max-height: calc(100vh - 56px);
    overflow-y: auto;
  }
  .drawer-nav { display: flex; flex-direction: column; }
  .drawer-nav a {
    display: flex;
    align-items: baseline;
    gap: 8px;
    padding: 12px 4px;
    color: var(--text);
    font-size: 15px;
    letter-spacing: .05em;
    border-bottom: 1px solid var(--border);
  }
  .drawer-nav a::before { content: "◆"; font-size: 7px; color: var(--accent); }
  .drawer-nav a:hover { color: var(--accent); }
  .drawer-sep { height: 1px; background: var(--border-strong); margin: 8px 0 2px; }
  .drawer-item {
    display: flex;
    align-items: center;
    gap: 10px;
    width: 100%;
    padding: 13px 4px;
    background: transparent;
    border: none;
    border-bottom: 1px solid var(--border);
    color: var(--text-dim);
    font-size: 14.5px;
    letter-spacing: .05em;
    text-align: left;
  }
  .drawer-item:hover { color: var(--accent); }
  .drawer-music { flex-direction: column; align-items: stretch; gap: 4px; padding: 12px 2px 6px; border-bottom: none; }
}