:root {
  --accent: #a90058;
  --ink: #202020;
  --muted: #666;
  --rule: #d5d5d5;
  --paper: #fff;
  --backdrop: #ededed;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  color: var(--ink);
  background: var(--backdrop);
  font-family: "Yu Gothic", "Hiragino Kaku Gothic ProN", Meiryo, sans-serif;
  font-size: 15px;
  line-height: 1.75;
}

a { color: inherit; }

.site-header {
  background: var(--paper);
  border-top: 9px solid var(--accent);
  border-bottom: 1px solid var(--rule);
}

.header-inner,
.layout,
footer {
  width: min(1080px, calc(100% - 40px));
  margin-inline: auto;
}

.header-inner { padding: 28px 0 24px; }

.eyebrow {
  margin: 0 0 3px;
  color: var(--accent);
  font: 700 11px/1.4 Arial, sans-serif;
  letter-spacing: .12em;
  text-transform: uppercase;
}

h1 {
  margin: 0;
  font: 700 29px/1.35 Georgia, "Times New Roman", serif;
  letter-spacing: .02em;
}

.description { margin: 7px 0 0; color: var(--muted); }

.layout {
  display: grid;
  grid-template-columns: 190px minmax(0, 1fr);
  gap: 42px;
  padding-block: 36px 50px;
}

.sidebar h2,
.library h2 {
  margin: 0;
  font-size: 16px;
}

.sidebar h2 {
  padding-bottom: 8px;
  border-bottom: 1px solid var(--rule);
}

.category-list {
  display: grid;
  margin-top: 8px;
}

.category-button {
  width: 100%;
  padding: 9px 6px;
  color: var(--ink);
  background: transparent;
  border: 0;
  border-bottom: 1px solid var(--rule);
  font: inherit;
  text-align: left;
  cursor: pointer;
}

.category-button:hover,
.category-button[aria-pressed="true"] {
  color: var(--accent);
  font-weight: 700;
}

.library {
  min-width: 0;
  padding: 26px 30px 34px;
  background: var(--paper);
  border-top: 5px solid var(--accent);
}

.library-header {
  display: flex;
  align-items: end;
  justify-content: space-between;
  gap: 24px;
  padding-bottom: 18px;
  border-bottom: 1px solid var(--ink);
}

.result-count { margin: 3px 0 0; color: var(--muted); font-size: 13px; }

.search {
  display: grid;
  gap: 3px;
  width: min(310px, 100%);
  color: var(--muted);
  font-size: 12px;
}

.search input {
  width: 100%;
  padding: 9px 10px;
  color: var(--ink);
  background: #fff;
  border: 1px solid #aaa;
  border-radius: 0;
  font: inherit;
}

.entry-list { display: grid; }

.entry {
  display: grid;
  grid-template-columns: 112px minmax(0, 1fr);
  gap: 20px;
  padding: 22px 2px;
  border-bottom: 1px solid var(--rule);
}

.entry-date {
  margin: 2px 0 0;
  color: var(--muted);
  font: 12px/1.5 Arial, sans-serif;
}

.entry-category {
  display: inline-block;
  margin-top: 7px;
  color: var(--accent);
  font-size: 12px;
  font-weight: 700;
}

.entry h3 { margin: 0 0 7px; font-size: 18px; line-height: 1.5; }

.entry h3 a {
  color: var(--ink);
  text-decoration-color: var(--accent);
  text-decoration-thickness: 1px;
  text-underline-offset: 4px;
}

.entry h3 a:hover { color: var(--accent); }
.entry p { margin: 0; color: #444; }
.loading, .empty { margin: 24px 0 0; color: var(--muted); }

footer {
  padding: 0 0 32px;
  color: var(--muted);
  font-size: 12px;
}

footer p { margin: 0; }

@media (max-width: 760px) {
  .header-inner,
  .layout,
  footer { width: min(100% - 28px, 720px); }

  .header-inner { padding: 22px 0 19px; }
  h1 { font-size: 25px; }

  .layout {
    grid-template-columns: minmax(0, 1fr);
    gap: 18px;
    padding-block: 20px 34px;
  }

  .sidebar { display: none; }
  .library { padding: 21px 18px 26px; }
  .library-header { align-items: stretch; flex-direction: column; gap: 14px; }
  .search { width: 100%; }
  .entry { grid-template-columns: minmax(0, 1fr); gap: 5px; }
  .entry-category { margin: 0 0 2px; }
}