:root {
  --tiger: #F96714;
  --tiger-tint: #FEF0E7;
  --ink: #1A1A1A;
  --muted: #5F5F5F;
  --line: #E7E5E1;
  --page: #F5F5F3;
  --card: #FFFFFF;
  --error: #B42318;
  --serif: 'Source Serif 4', Georgia, 'Times New Roman', serif;
  --sans: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;
  --radius: 14px;
}

* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  background: var(--page);
  color: var(--ink);
  font-family: var(--sans);
  font-size: 1rem;
  line-height: 1.6;
  border-top: 5px solid var(--tiger);
}
a { color: inherit; text-underline-offset: 3px; }
:focus-visible { outline: 2px solid var(--ink); outline-offset: 3px; border-radius: 3px; }
.sr-only { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; }

.wrap { max-width: 68rem; margin: 0 auto; padding: 0 1.25rem; }

/* Header ------------------------------------------------------------- */
.site { padding: 1.5rem 0 1.75rem; }
.site .wrap { display: flex; align-items: baseline; justify-content: space-between; gap: 0.25rem 1rem; flex-wrap: wrap; }
.brand { font-family: var(--serif); font-weight: 600; font-size: 1.375rem; text-decoration: none; }
.brand-sub { color: var(--muted); font-size: 0.9375rem; }

/* Layout: sidebar left, today + subscribe right ----------------------- */
.layout {
  display: grid;
  gap: 1.25rem;
  grid-template-columns: 1fr;
  grid-template-areas: "today" "sub" "prev";
  align-items: start;
}
.today { grid-area: today; }
.subscribe { grid-area: sub; }
.previous { grid-area: prev; }
@media (min-width: 900px) {
  .layout {
    grid-template-columns: 18.5rem minmax(0, 1fr);
    grid-template-areas: "prev today" "prev sub";
    gap: 1.5rem;
  }
  .previous { position: sticky; top: 1.25rem; }
  .layout.no-prev { grid-template-columns: minmax(0, 46rem); grid-template-areas: "today" "sub"; justify-content: center; }
}

.card {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: var(--radius);
}

/* Today --------------------------------------------------------------- */
.today { overflow: hidden; container-type: inline-size; }
.today::before { content: ""; display: block; height: 5px; background: var(--tiger); }
.today-inner { padding: 2.25rem 2.5rem 2.5rem; }
.date { margin: 0 0 0.35rem; color: var(--muted); font-size: 0.9375rem; }
.word {
  --len: 9;
  margin: 0;
  font-family: var(--serif);
  font-weight: 600;
  color: var(--tiger);
  font-size: min(4.75rem, calc(175cqi / var(--len)));
  line-height: 1.05;
  letter-spacing: -0.01em;
  overflow-wrap: anywhere;
}
.translation { margin: 0.6rem 0 0; font-size: 1.3125rem; line-height: 1.4; font-weight: 500; }
.rule { border: 0; border-top: 1px solid var(--line); margin: 1.75rem 0; }
.definition { margin: 0; font-size: 1.0625rem; line-height: 1.65; max-width: 40rem; }

.examples { list-style: none; margin: 1.5rem 0 0; padding: 0; display: grid; gap: 1rem; }
.examples li { border-left: 3px solid var(--tiger); padding: 0.1rem 0 0.1rem 1rem; }
.examples .it { margin: 0; font-weight: 600; font-size: 1.0625rem; line-height: 1.5; }
.examples .en { margin: 0.2rem 0 0; color: var(--muted); font-style: italic; }

.placeholder { margin: 0; color: var(--muted); font-size: 1.0625rem; }

/* Subscribe ----------------------------------------------------------- */
.subscribe { background: var(--tiger-tint); border-color: #F8DCCB; padding: 1.75rem 2.5rem 2rem; }
.subscribe h2 { margin: 0; font-family: var(--serif); font-weight: 600; font-size: 1.5rem; line-height: 1.25; }
.subscribe .lede { margin: 0.4rem 0 1.25rem; max-width: 34rem; }
.field { display: flex; gap: 0.5rem; flex-wrap: wrap; }
.field input {
  flex: 1 1 15rem;
  min-width: 0;
  font: inherit;
  padding: 0.75rem 0.9rem;
  border: 1px solid #D6D2CD;
  border-radius: 8px;
  background: #fff;
  color: var(--ink);
}
.field input:focus-visible { outline: 2px solid var(--ink); outline-offset: 1px; border-color: var(--ink); }
.btn {
  font: inherit;
  font-weight: 600;
  padding: 0.75rem 1.4rem;
  border: 0;
  border-radius: 8px;
  background: var(--tiger);
  color: var(--ink);
  cursor: pointer;
}
.btn:hover { background: #E85C0C; }
.btn[disabled] { opacity: 0.6; cursor: progress; }
.btn-quiet { background: #fff; border: 1px solid #CFCBC6; font-weight: 500; }
.btn-quiet:hover { background: #F5F4F2; }
.msg { margin: 0.75rem 0 0; font-size: 0.9375rem; }
.msg:empty { margin: 0; }
.msg.error { color: var(--error); }

/* Previous days sidebar ----------------------------------------------- */
.previous { padding: 1.25rem 1.25rem 0.5rem; }
.previous h2 { margin: 0 0 0.5rem; font-size: 0.9375rem; font-weight: 600; color: var(--muted); }
.prev-list { list-style: none; margin: 0; padding: 0; }
.prev-list > li + li { border-top: 1px solid var(--line); }
.previous summary {
  list-style: none;
  cursor: pointer;
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 0 0.75rem;
  align-items: center;
  padding: 0.85rem 0;
  border-radius: 6px;
}
.previous summary::-webkit-details-marker { display: none; }
.prev-when { font-size: 0.8125rem; color: var(--muted); }
.prev-word { grid-column: 1; font-family: var(--serif); font-weight: 600; font-size: 1.3125rem; line-height: 1.25; overflow-wrap: anywhere; }
.prev-tr { grid-column: 1; color: var(--muted); font-size: 0.9375rem; line-height: 1.4; }
.chev {
  grid-column: 2; grid-row: 1 / span 3;
  width: 0.55rem; height: 0.55rem;
  border-right: 2px solid var(--muted); border-bottom: 2px solid var(--muted);
  transform: rotate(45deg); margin-top: -0.25rem;
  transition: transform 180ms ease;
}
.previous details[open] .chev { transform: rotate(225deg); margin-top: 0.25rem; }
.previous summary:hover .prev-word, .previous details[open] .prev-word { color: var(--tiger); }
.prev-body { padding: 0 0 1.1rem; }
.prev-body .definition { font-size: 0.9375rem; line-height: 1.6; }
.prev-body .examples { margin-top: 0.9rem; gap: 0.75rem; }
.prev-body .examples .it { font-size: 0.9375rem; }
.prev-body .examples .en { font-size: 0.875rem; }
.previous details[open] .prev-body { animation: open 200ms ease-out; }
@keyframes open { from { opacity: 0; transform: translateY(-4px); } to { opacity: 1; transform: none; } }

/* Footer -------------------------------------------------------------- */
.foot { padding: 2.5rem 0 3rem; color: var(--muted); font-size: 0.9375rem; }
.foot p { margin: 0; }
.foot form { margin-top: 0.75rem; max-width: 30rem; }
.linklike { font: inherit; color: var(--ink); background: none; border: 0; padding: 0; text-decoration: underline; text-underline-offset: 3px; cursor: pointer; }

/* Confirm / unsubscribe pages ----------------------------------------- */
.notice { max-width: 40rem; margin: 1rem auto 0; padding: 2.5rem; overflow: hidden; position: relative; }
.notice::before { content: ""; position: absolute; inset: 0 0 auto 0; height: 5px; background: var(--tiger); }
.notice h1 { font-family: var(--serif); font-weight: 600; font-size: clamp(2rem, 6vw, 2.75rem); line-height: 1.15; margin: 0 0 0.75rem; }
.notice p { margin: 0 0 0.75rem; }
.notice .actions { margin-top: 1.5rem; display: flex; gap: 0.75rem; flex-wrap: wrap; }
.notice a.btn { text-decoration: none; display: inline-block; }

@media (max-width: 560px) {
  .today-inner { padding: 1.75rem 1.25rem 2rem; }
  .subscribe { padding: 1.5rem 1.25rem; }
  .notice { padding: 2rem 1.25rem; }
  .field .btn { flex: 1 1 100%; }
}
@media (prefers-reduced-motion: reduce) {
  .previous details[open] .prev-body { animation: none; }
  .chev { transition: none; }
}