:root {
  --paper: #faf9f6;
  --ink: #141414;
  --muted: #6b6860;
  --line: #e4e1d8;
  --card: #ffffff;
  --accent: #141414;
  --hint: #f1eee6;
  --serif: Georgia, "Iowan Old Style", "Times New Roman", serif;
  --sans: system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  --bar: 3.25rem;
  color-scheme: light dark;
}
@media (prefers-color-scheme: dark) {
  :root {
    --paper: #121212;
    --ink: #ebe9e4;
    --muted: #9b978d;
    --line: #2a2926;
    --card: #1a1a19;
    --accent: #ebe9e4;
    --hint: #1f1e1c;
  }
}

* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font: 17px/1.5 var(--sans);
  min-height: 100dvh;
  display: flex;
  flex-direction: column;
}
a { color: inherit; }
button { font: inherit; color: inherit; }
[hidden] { display: none !important; }

/* ---------- top bar ---------- */
.bar {
  position: sticky; top: 0; z-index: 10;
  height: var(--bar);
  display: flex; align-items: center; justify-content: space-between;
  padding: 0 max(1rem, env(safe-area-inset-left));
  background: color-mix(in srgb, var(--paper) 92%, transparent);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--line);
}
.brand {
  font: 700 1.35rem/1 var(--serif);
  text-decoration: none;
  letter-spacing: -0.01em;
}
.icon {
  background: none; border: 0; padding: .5rem; margin-right: -.5rem;
  display: grid; place-items: center; cursor: pointer; border-radius: .5rem;
}
.icon:hover { background: var(--hint); }

.search { padding: .75rem 1rem 0; max-width: 46rem; width: 100%; margin: 0 auto; }
.search input {
  width: 100%; font: inherit; padding: .65rem .85rem;
  border: 1px solid var(--line); border-radius: .6rem;
  background: var(--card); color: var(--ink);
}
.chips {
  display: flex; gap: .5rem; overflow-x: auto;
  padding: .75rem 1rem 0; max-width: 46rem; width: 100%; margin: 0 auto;
  scrollbar-width: none;
}
.chips button {
  border: 1px solid var(--line); background: var(--card);
  padding: .35rem .85rem; border-radius: 999px; cursor: pointer;
  font-size: .9rem; white-space: nowrap;
}
.chips button[aria-pressed="true"] { background: var(--ink); color: var(--paper); border-color: var(--ink); }

/* ---------- layout ---------- */
main {
  flex: 1;
  width: 100%; max-width: 46rem; margin: 0 auto;
  padding: 1rem 1rem 2rem;
}
main.wide { max-width: none; padding-left: 0; padding-right: 0; }
.status { color: var(--muted); text-align: center; padding: 3rem 1rem; }

/* ---------- day cards ---------- */
.day {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: .9rem;
  padding: 1rem 1rem .5rem;
  margin: 0 0 1rem;
}
.day-head { display: flex; align-items: baseline; justify-content: space-between; gap: .75rem; }
.day-head h2 { font: 700 1.3rem/1.2 var(--serif); margin: 0; }
.day-head h2 a { text-decoration: none; }
.day-head .src { font-size: .8rem; color: var(--muted); text-transform: uppercase; letter-spacing: .06em; }
.front {
  display: flex; align-items: baseline; gap: .6rem; flex-wrap: wrap;
  margin: .75rem 0 .25rem; padding: .6rem .8rem;
  background: var(--hint); border-radius: .6rem;
  text-decoration: none; font-weight: 600;
}
.front small { font-weight: 400; color: var(--muted); }
.articles { list-style: none; margin: 0; padding: 0; }
.articles li { border-top: 1px solid var(--line); }
.articles li:first-child { border-top: 0; }
.articles a {
  display: block; padding: .7rem 0; text-decoration: none;
}
.articles .hl { font: 1.06rem/1.35 var(--serif); display: block; }
.articles small, .search-day { color: var(--muted); font-size: .8rem; }
.articles a:hover .hl { text-decoration: underline; text-underline-offset: 3px; }
.all {
  display: block; padding: .7rem 0 .6rem; border-top: 1px solid var(--line);
  color: var(--muted); text-decoration: none; font-size: .95rem;
}
.more-btn {
  display: block; margin: 1.5rem auto 0; padding: .6rem 1.2rem;
  border: 1px solid var(--line); background: var(--card); border-radius: .6rem; cursor: pointer;
}
.result-note { color: var(--muted); font-size: .9rem; margin: 0 0 .75rem; }

/* ---------- article view ---------- */
.view-bar {
  display: flex; align-items: center; justify-content: space-between; gap: .75rem; flex-wrap: wrap;
  max-width: 46rem; margin: 0 auto .75rem; padding: 0 0 .25rem;
}
main.wide .view-bar { max-width: none; padding: 0 1rem .25rem; }
.back { text-decoration: none; color: var(--muted); font-size: .95rem; white-space: nowrap; }
.seg {
  display: inline-flex; border: 1px solid var(--line); border-radius: .6rem; overflow: hidden;
  background: var(--card);
}
.seg button {
  border: 0; background: none; padding: .45rem .9rem; cursor: pointer; font-size: .92rem;
}
.seg button + button { border-left: 1px solid var(--line); }
.seg button[aria-pressed="true"] { background: var(--ink); color: var(--paper); }
.seg button:disabled { color: var(--muted); cursor: not-allowed; opacity: .6; }

.read-inner { max-width: 40rem; margin: 0 auto; }
.kicker { color: var(--muted); font-size: .8rem; text-transform: uppercase; letter-spacing: .06em; margin: .5rem 0; }
.read-inner h1 { font: 700 clamp(1.6rem, 5.5vw, 2.3rem)/1.15 var(--serif); margin: 0 0 .6rem; letter-spacing: -0.01em; }
.byline { color: var(--muted); margin: 0 0 1rem; font-size: .95rem; }
.hint {
  background: var(--hint); border-radius: .6rem; padding: .65rem .85rem;
  font-size: .92rem; margin: 0 0 1.25rem; color: var(--muted);
}
.hint button, .linkish {
  background: none; border: 0; padding: 0; cursor: pointer;
  color: var(--ink); text-decoration: underline; text-underline-offset: 3px;
}
.prose { font: 1.12rem/1.65 var(--serif); }
.prose p { margin: 0 0 1.1em; }
.prose h2, .prose h3 { font-family: var(--serif); line-height: 1.25; margin: 1.6em 0 .6em; }
.prose img { max-width: 100%; max-height: 70vh; width: auto; height: auto; object-fit: contain; border-radius: .4rem; display: block; margin: 1.2em auto; }
.prose a { text-underline-offset: 3px; }
.prose blockquote { margin: 1.2em 0; padding-left: 1em; border-left: 3px solid var(--line); color: var(--muted); }
.prose hr { border: 0; border-top: 1px solid var(--line); margin: 2em 0; }
.end-links { color: var(--muted); font-size: .92rem; margin: 2rem 0 0; }
.more { margin-top: 2.5rem; border-top: 1px solid var(--line); padding-top: 1rem; }
.more h2 { font: 700 1.1rem/1.3 var(--serif); margin: 0 0 .25rem; }

.orig-note { max-width: 46rem; margin: 0 auto .75rem; }
main.wide .orig-note { max-width: none; margin: 0 1rem .75rem; }
replay-web-page {
  display: block; width: 100%;
  height: calc(100dvh - var(--bar) - 7.5rem);
  min-height: 24rem;
  border-top: 1px solid var(--line);
}

/* ---------- footer ---------- */
footer {
  border-top: 1px solid var(--line);
  color: var(--muted); font-size: .88rem;
  padding: 1.5rem 1rem calc(1.5rem + env(safe-area-inset-bottom));
}
.foot { max-width: 46rem; margin: 0 auto; }
.foot p { margin: 0 0 .75rem; }
.foot ul { list-style: none; padding: 0; margin: 0 0 .75rem; }
.foot li { margin: 0 0 .35rem; }
.foot a { color: var(--ink); text-underline-offset: 3px; }

@media (min-width: 900px) {
  .day { padding: 1.25rem 1.5rem .5rem; }
}