:root {
  --paper: #f7f4ec;
  --ink: #1f1b16;
  --ink-soft: #5b544a;
  --line: #e2dccd;
  --card: #fffdf8;
  --accent: #b4441f;
  --shadow: 0 1px 2px rgba(40, 30, 15, .05), 0 8px 24px rgba(40, 30, 15, .06);
  --serif: "Songti SC", "Noto Serif SC", Georgia, serif;
  --sans: -apple-system, "PingFang SC", "Helvetica Neue", Arial, sans-serif;
}

* { box-sizing: border-box; }

html { -webkit-text-size-adjust: 100%; }

body {
  margin: 0;
  background:
    radial-gradient(1200px 500px at 80% -10%, #fdf0e4 0%, transparent 60%),
    var(--paper);
  color: var(--ink);
  font-family: var(--sans);
  line-height: 1.6;
}

.wrap { width: min(820px, 92vw); margin: 0 auto; }

/* masthead */
.masthead {
  border-bottom: 1px solid var(--line);
  padding: 56px 0 30px;
}
.masthead .wrap {
  display: flex;
  justify-content: space-between;
  align-items: flex-end;
  gap: 24px;
  flex-wrap: wrap;
}
.kicker {
  font-size: 12px;
  letter-spacing: .28em;
  color: var(--accent);
  font-weight: 700;
}
h1 {
  font-family: var(--serif);
  font-size: clamp(34px, 6vw, 52px);
  margin: 8px 0 6px;
  letter-spacing: .02em;
}
.subtitle { color: var(--ink-soft); margin: 0; max-width: 46ch; }

.stats { display: flex; gap: 26px; }
.stat { text-align: center; }
.stat .num {
  display: block;
  font-family: var(--serif);
  font-size: 30px;
  line-height: 1;
  color: var(--accent);
}
.stat .lbl { font-size: 12px; color: var(--ink-soft); letter-spacing: .1em; }

/* filters */
.filters {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  padding: 22px 0 4px;
  position: sticky;
  top: 0;
  background: linear-gradient(var(--paper) 70%, transparent);
  z-index: 5;
}
.chip {
  border: 1px solid var(--line);
  background: var(--card);
  color: var(--ink-soft);
  padding: 5px 13px;
  border-radius: 999px;
  font-size: 13px;
  cursor: pointer;
  transition: all .15s ease;
  white-space: nowrap;
}
.chip:hover { border-color: var(--accent); color: var(--ink); }
.chip.active {
  background: var(--ink);
  color: var(--paper);
  border-color: var(--ink);
}
.chip .dot {
  display: inline-block;
  width: 7px; height: 7px;
  border-radius: 50%;
  margin-right: 6px;
  vertical-align: middle;
}

/* timeline */
main { padding: 24px 0 60px; }
.day {
  margin-top: 34px;
}
.day-head {
  display: flex;
  align-items: baseline;
  gap: 12px;
  margin-bottom: 14px;
}
.day-date {
  font-family: var(--serif);
  font-size: 22px;
}
.day-week { color: var(--ink-soft); font-size: 13px; }
.day-line { flex: 1; height: 1px; background: var(--line); }

.card {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 14px;
  padding: 18px 20px;
  margin-bottom: 14px;
  box-shadow: var(--shadow);
  position: relative;
}
.card::before {
  content: "";
  position: absolute;
  left: 0; top: 18px; bottom: 18px;
  width: 3px;
  border-radius: 3px;
  background: var(--cat, var(--accent));
}
.card .tag {
  display: inline-block;
  font-size: 12px;
  font-weight: 600;
  color: var(--cat, var(--accent));
  letter-spacing: .04em;
  margin-bottom: 6px;
}
.card .raw {
  font-family: var(--serif);
  font-size: 18px;
  line-height: 1.7;
  margin: 2px 0 10px;
  white-space: pre-wrap;
}
.card .summary {
  font-size: 14px;
  color: var(--ink-soft);
  border-top: 1px dashed var(--line);
  padding-top: 9px;
}
.card .summary b { color: var(--accent); font-weight: 600; }
.card .time { font-size: 12px; color: #a89e8c; float: right; }

/* empty + footer */
.empty {
  text-align: center;
  color: var(--ink-soft);
  padding: 60px 20px;
  border: 1px dashed var(--line);
  border-radius: 14px;
  background: var(--card);
}
footer {
  border-top: 1px solid var(--line);
  padding: 22px 0 50px;
  color: var(--ink-soft);
  font-size: 13px;
}
footer code { background: #ece6d8; padding: 1px 6px; border-radius: 5px; }

@media (max-width: 560px) {
  .masthead { padding: 36px 0 22px; }
  .stats { gap: 18px; }
  .card .raw { font-size: 16px; }
}