:root {
  color-scheme: light dark;
  font-family: Georgia, serif;
  --page-bg: #f4efe7;
  --page-gradient-top: #fffaf2;
  --page-gradient-bottom: #ebe3d6;
  --text: #1f1a17;
  --muted: #6b5e54;
  --muted-strong: #6f6257;
  --panel-bg: rgba(255, 250, 242, 0.84);
  --panel-bg-soft: rgba(255, 250, 242, 0.7);
  --panel-border: rgba(68, 51, 38, 0.15);
  --panel-border-soft: rgba(68, 51, 38, 0.2);
  --panel-shadow: rgba(64, 42, 26, 0.08);
  --panel-shadow-soft: rgba(64, 42, 26, 0.06);
  --tag-bg: #e7d7bf;
  --tag-text: #4d3e32;
  --tag-hover: rgba(207, 179, 141, 0.28);
  --tag-active-bg: #201814;
  --tag-active-text: #f9f4ed;
  --blockquote: #cfb38d;
  --link: #5c3d17;
}

@media (prefers-color-scheme: dark) {
  :root {
    --page-bg: #17120f;
    --page-gradient-top: #241b15;
    --page-gradient-bottom: #0f0b09;
    --text: #f2e8dc;
    --muted: #c7b7a8;
    --muted-strong: #d8c7b5;
    --panel-bg: rgba(31, 24, 19, 0.9);
    --panel-bg-soft: rgba(28, 21, 17, 0.88);
    --panel-border: rgba(239, 221, 200, 0.12);
    --panel-border-soft: rgba(239, 221, 200, 0.18);
    --panel-shadow: rgba(0, 0, 0, 0.34);
    --panel-shadow-soft: rgba(0, 0, 0, 0.24);
    --tag-bg: #3f3025;
    --tag-text: #f2dfc8;
    --tag-hover: rgba(242, 223, 200, 0.1);
    --tag-active-bg: #f0ddc5;
    --tag-active-text: #1d1611;
    --blockquote: #8f6f50;
    --link: #f3d39a;
  }
}

* {
  box-sizing: border-box;
}

html,
body {
  max-width: 100%;
}

body {
  margin: 0;
  background: radial-gradient(circle at top, var(--page-gradient-top) 0, var(--page-bg) 45%, var(--page-gradient-bottom) 100%);
  color: var(--text);
}

a {
  color: var(--link);
}

main {
  width: min(100%, 1200px);
  margin: 0 auto;
  padding: 32px 20px 64px;
}

.page-header {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  gap: 16px;
  margin-bottom: 10px;
}

h1 {
  font-size: clamp(1.8rem, 3vw, 2.5rem);
  margin: 0;
  letter-spacing: -0.03em;
}

.layout {
  display: grid;
  grid-template-columns: minmax(0, 260px) minmax(0, 1fr);
  gap: 24px;
  align-items: start;
}

.layout > * {
  min-width: 0;
}

.sidebar {
  position: sticky;
  top: 72px;
  padding: 18px;
  border: 1px solid var(--panel-border);
  border-radius: 18px;
  background: var(--panel-bg-soft);
  box-shadow: 0 12px 30px var(--panel-shadow-soft);
}

.sidebar-title {
  margin: 0 0 14px;
  font-size: 0.95rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--muted-strong);
}

.tag-list {
  display: grid;
  gap: 8px;
}

.tag-link {
  display: flex;
  justify-content: space-between;
  gap: 12px;
  align-items: center;
  min-width: 0;
  padding: 10px 12px;
  border-radius: 12px;
  color: var(--text);
  text-decoration: none;
  background: transparent;
}

.tag-link span:first-child {
  min-width: 0;
  overflow-wrap: anywhere;
}

.tag-link:hover {
  background: var(--tag-hover);
}

.tag-link.active {
  background: var(--tag-active-bg);
  color: var(--tag-active-text);
}

.tag-count {
  flex-shrink: 0;
  font: 0.82rem/1.2 ui-monospace, SFMono-Regular, monospace;
  opacity: 0.82;
}

.content-panel,
.note-list,
.note,
.note-header,
.content {
  min-width: 0;
}

.content-panel {
  display: grid;
  gap: 0;
}

.filter-state {
  color: var(--muted);
  font: 0.95rem/1.4 ui-monospace, SFMono-Regular, monospace;
  overflow-wrap: anywhere;
}

.note-list {
  display: grid;
  gap: 18px;
}

.note {
  width: 100%;
  padding: 22px 24px;
  border: 1px solid var(--panel-border);
  border-radius: 18px;
  background: var(--panel-bg);
  box-shadow: 0 12px 30px var(--panel-shadow);
  backdrop-filter: blur(8px);
}

.note-header {
  display: flex;
  justify-content: space-between;
  gap: 16px;
  align-items: flex-start;
  margin-bottom: 16px;
}

.note-header > div {
  min-width: 0;
}

.note-title {
  display: flex;
  align-items: center;
  gap: 0.45rem;
  flex-wrap: wrap;
  font-size: 1.4rem;
  margin: 0 0 6px;
  line-height: 1.15;
  overflow-wrap: anywhere;
}

.note-title-link {
  color: inherit;
  text-decoration: none;
  overflow-wrap: anywhere;
}

.note-title-link:hover {
  text-decoration: underline;
}

.meta {
  color: var(--muted);
  font: 0.95rem/1.4 ui-monospace, SFMono-Regular, monospace;
}

.permalink-glyph {
  flex-shrink: 0;
  color: var(--muted);
  text-decoration: none;
  font: 0.95rem/1 ui-monospace, SFMono-Regular, monospace;
  opacity: 0.75;
}

.permalink-glyph:hover {
  color: var(--text);
  opacity: 1;
}

.tags {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
  margin-top: 10px;
}

.tag {
  padding: 4px 10px;
  border-radius: 999px;
  background: var(--tag-bg);
  color: var(--tag-text);
  font: 0.8rem/1.2 ui-monospace, SFMono-Regular, monospace;
}

.content {
  overflow-wrap: anywhere;
  line-height: 1.65;
  color: var(--text);
}

.content :first-child {
  margin-top: 0;
}

.content :last-child {
  margin-bottom: 0;
}

.content pre {
  max-width: 100%;
  overflow: auto;
  padding: 14px;
  border-radius: 12px;
}

.content code {
  font-family: ui-monospace, SFMono-Regular, monospace;
}

.content :not(pre) > code {
  padding: 0.15em 0.35em;
  border-radius: 0.35em;
  background: var(--tag-bg);
  color: var(--tag-text);
}

.content blockquote {
  margin-left: 0;
  padding-left: 16px;
  border-left: 4px solid var(--blockquote);
  color: var(--muted);
}

.empty {
  padding: 28px;
  border-radius: 18px;
  background: var(--panel-bg-soft);
  border: 1px dashed var(--panel-border-soft);
  color: var(--muted);
}

@media (max-width: 900px) {
  .layout {
    grid-template-columns: 1fr;
  }

  .sidebar {
    position: static;
  }
}

@media (max-width: 720px) {
  main {
    padding-inline: 14px;
  }

  .page-header {
    align-items: flex-start;
    flex-direction: column;
  }

  .note {
    padding: 18px;
  }

  .note-header {
    flex-direction: column;
    gap: 10px;
  }
}