:root {
  --page: #e8e4dc;
  --quiet: #f4f0e8;
  --ticket: #f6f0e4;
  --ink: #1a1408;
  --muted: #5c564c;
  --accent: #8f5f0a;
  --on-accent: #1a1408;
  --lamp: #b04008;
  --stroke: rgb(26 20 8 / 0.14);
  --shadow: rgb(26 20 8 / 0.07);
  --radius: 14px;
  --ticket-radius: 10px;
  --notch: 7px;
}

@media (prefers-color-scheme: dark) {
  :root {
    --page: #101114;
    --quiet: #181a1f;
    --ticket: #221e18;
    --ink: #f2f0ea;
    --muted: #b3ada3;
    --accent: #f0c14d;
    --on-accent: #1a1408;
    --lamp: #ff9a5a;
    --stroke: rgb(242 240 234 / 0.16);
    --shadow: rgb(0 0 0 / 0.38);
  }
}

* { box-sizing: border-box; }

html {
  background: var(--page);
}

body {
  margin: 0;
  color: var(--ink);
  background: var(--page);
  font-family: "PingFang SC", "Hiragino Sans GB", "Noto Sans SC", "Source Han Sans SC", system-ui, sans-serif;
  font-size: 1.02rem;
  line-height: 1.65;
}

a {
  color: var(--accent);
  text-underline-offset: 0.18em;
}

a:hover { text-decoration-thickness: 2px; }

a:focus-visible,
button:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 3px;
}

.wrap {
  width: min(42rem, calc(100% - 2.5rem));
  margin: 0 auto;
  padding: 1.25rem 0 4.5rem;
}

.site-nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  margin-bottom: 1.25rem;
}

.wordmark {
  color: inherit;
  text-decoration: none;
  font-weight: 600;
  letter-spacing: 0.02em;
}

.nav-links {
  display: flex;
  gap: 0.35rem;
}

.nav-links a {
  color: var(--ink);
  text-decoration: none;
  padding: 0.55rem 0.85rem;
  min-height: 44px;
  display: inline-flex;
  align-items: center;
  border-radius: 10px;
  background: var(--quiet);
  font-size: 0.92rem;
  font-weight: 600;
}

.nav-links a[aria-current="page"] {
  background: var(--accent);
  color: var(--on-accent);
}

.ticket {
  position: relative;
  background: var(--ticket);
  border-radius: var(--ticket-radius);
  box-shadow: 0 8px 16px var(--shadow);
  border: 0.8px solid var(--stroke);
  display: grid;
  grid-template-columns: 4px 1fr;
}

.ticket::before,
.ticket::after {
  content: "";
  position: absolute;
  top: 50%;
  width: calc(var(--notch) * 2);
  height: calc(var(--notch) * 2);
  background: var(--page);
  border-radius: 50%;
  transform: translateY(-50%);
  z-index: 2;
}

.ticket::before { left: calc(var(--notch) * -1); }
.ticket::after { right: calc(var(--notch) * -1); }

.rail {
  background: var(--accent);
  border-radius: var(--ticket-radius) 0 0 var(--ticket-radius);
}

.ticket-body {
  padding: 1.35rem 1.25rem 1.4rem 1.1rem;
}

.hero-label {
  margin: 0;
  font-size: 0.92rem;
  font-weight: 600;
  color: var(--muted);
}

.hero-figure {
  margin: 0.15rem 0 0.35rem;
  font-family: ui-rounded, "Avenir Next", "PingFang SC", system-ui, sans-serif;
  font-size: clamp(2.6rem, 8vw, 3.4rem);
  font-weight: 700;
  line-height: 1.05;
  letter-spacing: -0.03em;
  color: var(--accent);
}

.hero-figure.lamp { color: var(--lamp); }

.lede {
  margin: 0;
  font-size: 1.05rem;
}

.perforation {
  height: 1px;
  margin: 1.15rem 0 1rem;
  background-image: repeating-linear-gradient(
    to right,
    var(--stroke) 0 3.5px,
    transparent 3.5px 7px
  );
}

.tasks {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 0.5rem;
}

.tasks span {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 44px;
  border-radius: 10px;
  background: var(--quiet);
  font-size: 0.92rem;
  font-weight: 600;
}

.stack {
  display: grid;
  gap: 0.85rem;
  margin-top: 1.1rem;
}

.quiet {
  background: var(--quiet);
  border-radius: var(--radius);
  padding: 1.05rem 1.1rem 1.15rem;
}

.quiet h2 {
  margin: 0 0 0.55rem;
  font-size: 1.08rem;
  font-weight: 600;
}

.quiet p,
.quiet li { margin: 0 0 0.65rem; }

.quiet p:last-child,
.quiet li:last-child { margin-bottom: 0; }

.quiet ul {
  margin: 0;
  padding-left: 1.15rem;
}

.split {
  display: grid;
  gap: 0.85rem;
}

@media (min-width: 640px) {
  .split { grid-template-columns: 1fr 1fr; }
}

.split .quiet h2 { color: var(--accent); }
.split .leave h2 { color: var(--lamp); }

.mail {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 44px;
  padding: 0.7rem 1.1rem;
  border-radius: var(--radius);
  background: var(--accent);
  color: var(--on-accent);
  font-weight: 600;
  text-decoration: none;
}

.mail:hover { filter: brightness(1.05); }

.meta,
.foot {
  color: var(--muted);
  font-size: 0.9rem;
}

.meta { margin: 1rem 0 0; }

.ticket-note {
  margin: 0 0 0.9rem;
}

.foot {
  margin-top: 1.75rem;
  display: flex;
  flex-wrap: wrap;
  gap: 0.35rem 1rem;
}

.en h2 { font-family: ui-rounded, "Avenir Next", system-ui, sans-serif; }

@media (max-width: 520px) {
  .tasks { grid-template-columns: 1fr 1fr; }
  .wrap { width: min(42rem, calc(100% - 2rem)); }
}

@media (prefers-reduced-motion: reduce) {
  * { scroll-behavior: auto !important; }
}