/* notes — modern minimal diary. light + One-Dark-ish dark. */

:root {
  --bg: #fbfbf9;
  --surface: #ffffff;
  --fg: #1f2328;
  --muted: #71767d;
  --faint: #9aa0a6;
  --border: #e6e5e0;
  --border-strong: #d6d5d0;
  --accent: #0f766e;
  --accent-soft: #e6f2f0;
  --link: #0f766e;
  --visited: #7d8b85;
  --chip-bg: #f2f4f3;
  --code-bg: #f4f4f1;
  --shadow: 0 1px 2px rgba(20, 24, 28, .04);
}

[data-theme="dark"] {
  --bg: #282c34;
  --surface: #2c313a;
  --fg: #d7dae0;
  --muted: #8b919e;
  --faint: #656b76;
  --border: #3b4048;
  --border-strong: #474d57;
  --accent: #56b6c2;
  --accent-soft: #243139;
  --link: #7c9cc4;
  --visited: #6e7787;
  --chip-bg: #31363f;
  --code-bg: #21252b;
  --shadow: 0 1px 2px rgba(0, 0, 0, .25);
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--fg);
  font: 15px/1.6 -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto,
        "Noto Sans SC", "PingFang SC", "Hiragino Sans GB", sans-serif;
  -webkit-font-smoothing: antialiased;
}

a { color: var(--link); text-decoration: none; }
a:hover { text-decoration: underline; }
a:visited { color: var(--visited); }
a.chip:visited { color: var(--fg); }

/* ---------- 顶栏 ---------- */
header.top {
  position: sticky;
  top: 0;
  z-index: 20;
  display: flex;
  align-items: center;
  gap: 18px;
  max-width: 860px;
  margin: 0 auto;
  padding: 12px 20px;
  background: var(--bg);
  background: color-mix(in srgb, var(--bg) 88%, transparent);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--border);
}

.brand {
  font: 700 19px/1 "JetBrains Mono", ui-monospace, Menlo, Consolas, monospace;
  color: var(--fg);
  letter-spacing: -0.5px;
}
.brand:visited { color: var(--fg); }
.brand::after { content: "."; color: var(--accent); }

.search { flex: 1; min-width: 120px; }
.search input {
  width: 100%;
  padding: 6px 12px;
  border: 1px solid var(--border);
  border-radius: 999px;
  background: var(--surface);
  color: var(--fg);
  font-size: 13px;
  outline: none;
}
.search input:focus { border-color: var(--accent); }

.topnav { display: flex; align-items: center; gap: 12px; font-size: 13px; }
.topnav a { color: var(--muted); }
.topnav a:hover { color: var(--accent); text-decoration: none; }

#themeBtn {
  border: 1px solid var(--border);
  background: var(--surface);
  border-radius: 999px;
  width: 28px;
  height: 28px;
  line-height: 1;
  cursor: pointer;
  font-size: 13px;
  padding: 0;
}
#themeBtn:hover { border-color: var(--accent); }

main {
  max-width: 860px;
  margin: 0 auto;
  padding: 24px 20px 64px;
}

/* ---------- 首页 ---------- */
.page-head {
  display: flex;
  align-items: baseline;
  gap: 10px;
  margin: 8px 0 16px;
}
.page-head h1 { font-size: 22px; margin: 0; letter-spacing: -0.3px; }
.count { color: var(--faint); font-size: 12.5px; font-weight: 400; }

.tagbar {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin: 0 0 22px;
}
.chip {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  padding: 2px 10px;
  border: 1px solid var(--border);
  border-radius: 999px;
  background: var(--chip-bg);
  color: var(--fg);
  font-size: 12px;
  line-height: 1.7;
}
.chip i {
  font-style: normal;
  color: var(--faint);
  font-size: 10.5px;
}
.chip:hover { border-color: var(--accent); color: var(--accent); text-decoration: none; }
.chip.on {
  background: var(--accent);
  border-color: var(--accent);
  color: #fff;
}
.chip.on i { color: rgba(255, 255, 255, .7); }
.chip.on:visited { color: #fff; }

.year h2 {
  position: sticky;
  top: 57px;
  background: var(--bg);
  padding: 10px 0 8px;
  margin: 0;
  font: 600 13px/1 ui-monospace, Menlo, Consolas, monospace;
  color: var(--faint);
  letter-spacing: .06em;
  z-index: 5;
}

ul.notes { list-style: none; margin: 0 0 18px; padding: 0; }

.note-row {
  display: grid;
  grid-template-columns: 52px 1fr;
  gap: 12px;
  padding: 11px 0;
  border-bottom: 1px solid var(--border);
}
.note-row:last-child { border-bottom: 0; }

.note-row .date {
  font: 12px/1.4 ui-monospace, Menlo, Consolas, monospace;
  color: var(--faint);
  padding-top: 2px;
}

.note-title {
  font-size: 16px;
  font-weight: 600;
  color: var(--fg);
  letter-spacing: -0.1px;
}
.note-title:visited { color: var(--visited); }
.note-title:hover { color: var(--accent); text-decoration: none; }

.row-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  align-items: center;
  margin-top: 4px;
}
.row-meta .chip { padding: 0 8px; font-size: 11px; }
.ncomments { color: var(--faint); font-size: 11.5px; }

.excerpt {
  margin: 5px 0 0;
  color: var(--muted);
  font-size: 13px;
  line-height: 1.55;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

/* ---------- 详情 ---------- */
.note-head { margin: 6px 0 26px; }
.note-head h1 {
  font-size: 27px;
  line-height: 1.3;
  margin: 0 0 8px;
  letter-spacing: -0.4px;
}
.note-meta { color: var(--faint); font-size: 12.5px; }
.note-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  align-items: center;
  margin-top: 12px;
}
.chipx { display: inline; margin: 0; }
.chipx button {
  border: 1px solid var(--border);
  background: var(--chip-bg);
  color: var(--fg);
  border-radius: 999px;
  padding: 1px 9px;
  font-size: 12px;
  cursor: pointer;
}
.chipx button:hover { border-color: #c0392b; color: #c0392b; }
.tagadd { display: inline-flex; gap: 4px; }
.tagadd input {
  width: 92px;
  border: 1px dashed var(--border-strong);
  border-radius: 999px;
  background: transparent;
  color: var(--fg);
  padding: 1px 9px;
  font-size: 12px;
  outline: none;
}
.tagadd input:focus { border-color: var(--accent); }
.tagadd button {
  border: 0;
  background: transparent;
  color: var(--muted);
  cursor: pointer;
  font-size: 12px;
}
.edit-link {
  margin-left: 6px;
  color: var(--muted);
  font-size: 12px;
  border: 1px solid var(--border);
  border-radius: 999px;
  padding: 1px 10px;
  background: var(--surface);
}
.edit-link:hover { border-color: var(--accent); color: var(--accent); text-decoration: none; }

.content {
  font-size: 15.5px;
  line-height: 1.85;
  color: var(--fg);
}
.content p { margin: 0 0 14px; }
.content h1, .content h2, .content h3, .content h4 {
  margin: 26px 0 10px;
  line-height: 1.4;
}
.content ul, .content ol { margin: 0 0 14px; padding-left: 24px; }
.content li { margin: 4px 0; }
.content blockquote {
  margin: 0 0 14px;
  padding: 6px 14px;
  border-left: 3px solid var(--border-strong);
  color: var(--muted);
}
.content pre {
  background: var(--code-bg);
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 12px 14px;
  overflow-x: auto;
  font-size: 13px;
  line-height: 1.6;
}
.content code {
  background: var(--code-bg);
  border-radius: 4px;
  padding: 1px 5px;
  font: 13px/1.4 ui-monospace, Menlo, Consolas, monospace;
}
.content pre code { background: none; padding: 0; }
.content img { max-width: 100%; border-radius: 8px; }

/* 时间线（原 bbs 的评论 = 日记碎片）——卡片式分隔 */
.timeline { margin-top: 42px; }
.timeline > h2 {
  font-size: 14px;
  color: var(--faint);
  font-weight: 500;
  letter-spacing: .04em;
  border-bottom: 1px solid var(--border);
  padding-bottom: 8px;
  margin: 0 0 16px;
}

.entries { display: flex; flex-direction: column; gap: 10px; }

.entry {
  background: var(--surface);
  border: 1px solid var(--border);
  border-left: 3px solid var(--accent);
  border-radius: 8px;
  padding: 10px 14px 12px;
  box-shadow: var(--shadow);
}

.entry-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  margin-bottom: 6px;
}

.entry-date {
  font: 11.5px/1.6 ui-monospace, Menlo, Consolas, monospace;
  color: var(--faint);
}

.entry-actions {
  display: flex;
  gap: 10px;
  align-items: center;
  font-size: 11.5px;
  opacity: 0;
  transition: opacity .15s;
}
.entry:hover .entry-actions,
.entry:focus-within .entry-actions { opacity: 1; }
.entry-actions a { color: var(--faint); }
.entry-actions a:hover { color: var(--accent); text-decoration: none; }
.entry-actions form { display: inline; margin: 0; }
.entry-actions button {
  background: none;
  border: 0;
  padding: 0;
  color: var(--faint);
  font-size: 11.5px;
  cursor: pointer;
}
.entry-actions button:hover { color: #c0392b; }

.entry-body { font-size: 14.5px; line-height: 1.75; }
.entry-body p { margin: 0 0 6px; }
.entry-body p:last-child { margin-bottom: 0; }

.add-entry { margin-top: 18px; }
.add-entry textarea {
  width: 100%;
  border: 1px solid var(--border);
  border-radius: 8px;
  background: var(--surface);
  color: var(--fg);
  padding: 10px 12px;
  font: 14px/1.6 inherit;
  resize: vertical;
  outline: none;
}
.add-entry textarea:focus { border-color: var(--accent); }
.add-entry button, .editor button, .login button {
  margin-top: 8px;
  border: 1px solid var(--accent);
  background: var(--accent);
  color: #fff;
  border-radius: 6px;
  padding: 6px 18px;
  font-size: 13px;
  cursor: pointer;
}
.add-entry button:hover, .editor button:hover, .login button:hover { filter: brightness(1.08); }

/* ---------- 编辑器 ---------- */
.markdown-box {
  border: 1px solid var(--border);
  border-radius: 10px;
  background: var(--surface);
  overflow: hidden;
  transition: border-color .15s;
}
.markdown-box.drag { border-color: var(--accent); box-shadow: 0 0 0 3px var(--accent-soft); }
.markdown-box textarea {
  border: 0;
  border-radius: 0;
  width: 100%;
  background: var(--surface);
  display: block;
}
.markdown-box textarea:focus { border-color: transparent; }

.md-toolbar {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 4px;
  padding: 6px 8px;
  background: var(--chip-bg);
  border-bottom: 1px solid var(--border);
}
.md-toolbar button,
.md-toolbar .upload-btn {
  border: 1px solid transparent;
  background: transparent;
  color: var(--muted);
  border-radius: 5px;
  padding: 3px 9px;
  font-size: 12px;
  line-height: 1.5;
  cursor: pointer;
}
.md-toolbar button:hover,
.md-toolbar .upload-btn:hover {
  background: var(--surface);
  border-color: var(--border);
  color: var(--accent);
}
.md-toolbar .upload-btn { margin-left: 2px; }
.md-status { font-size: 11.5px; color: var(--faint); margin-left: auto; }

.md-preview {
  border-top: 1px solid var(--border);
  padding: 14px 16px;
  background: var(--bg);
}
.hidden { display: none !important; }

.editor { display: flex; flex-direction: column; gap: 18px; max-width: 100%; }
.editor label {
  display: flex;
  flex-direction: column;
  gap: 6px;
  font-size: 13px;
  color: var(--muted);
}
.editor input, .editor textarea {
  border: 1px solid var(--border);
  border-radius: 8px;
  background: var(--surface);
  color: var(--fg);
  padding: 10px 12px;
  font: 14.5px/1.7 inherit;
  outline: none;
}
.editor textarea { font-family: ui-monospace, Menlo, Consolas, "Noto Sans SC", monospace; font-size: 13.5px; }
.editor input:focus, .editor textarea:focus { border-color: var(--accent); }
.editor .actions { display: flex; align-items: center; gap: 16px; }
.editor .actions a { color: var(--muted); font-size: 13px; }

/* ---------- 标签页 ---------- */
.tag-cloud { display: flex; flex-wrap: wrap; gap: 8px; }
.tag-cloud .chip { font-size: 13px; padding: 3px 12px; }

/* ---------- 登录 ---------- */
.login-body {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 100vh;
}
.login {
  display: flex;
  flex-direction: column;
  gap: 12px;
  width: 260px;
  padding: 32px 28px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 12px;
  box-shadow: var(--shadow);
}
.login h1 {
  margin: 0 0 8px;
  font: 700 26px/1 "JetBrains Mono", ui-monospace, monospace;
  letter-spacing: -1px;
}
.login h1 span { color: var(--accent); }
.login input {
  border: 1px solid var(--border);
  border-radius: 8px;
  background: var(--bg);
  color: var(--fg);
  padding: 9px 12px;
  font-size: 14px;
  outline: none;
}
.login input:focus { border-color: var(--accent); }
.login .err { color: #c0392b; font-size: 12.5px; margin: 0; }

.muted { color: var(--muted); }

footer.foot {
  max-width: 860px;
  margin: 0 auto;
  padding: 0 20px 40px;
  color: var(--faint);
  font-size: 12px;
}

/* ---------- 响应式 ---------- */
@media (max-width: 560px) {
  header.top { flex-wrap: wrap; gap: 10px; padding: 10px 14px; }
  .search { order: 3; flex-basis: 100%; }
  main { padding: 18px 14px 48px; }
  .note-row { grid-template-columns: 44px 1fr; gap: 8px; }
  .entry { grid-template-columns: 1fr; gap: 2px; }
  .year h2 { top: 96px; }
  .note-head h1 { font-size: 22px; }
}