/* 撕页日历 — tear-off wall calendar: red + gold, big numeral, 宜/忌 columns. No external assets. */
:root {
  --red: #c4271d;
  --red-deep: #8f1710;
  --gold: #d9a521;
  --gold-soft: #f3d98a;
  --paper: #fbf0d6;
  --paper-edge: #efdcae;
  --ink: #2a1810;
  --ink-soft: #6b5240;
  --wall: #e9d3a8;
  --yi: #b3201a;
  --ji: #2a1810;
  --radius: 10px;
  --serif: "Noto Serif SC", "Source Han Serif SC", "Songti SC", "STSong", "SimSun", serif;
}
@media (prefers-color-scheme: dark) {
  :root { --wall: #3a1512; --paper: #f6e9c8; }
}
* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  min-height: 100vh;
  font-family: var(--serif);
  color: var(--ink);
  background:
    radial-gradient(circle at 20% 10%, rgba(255,255,255,.35), transparent 40%),
    repeating-linear-gradient(45deg, rgba(120,70,20,.05) 0 2px, transparent 2px 6px),
    var(--wall);
  padding: 14px 16px 40px;
  line-height: 1.6;
}
.wrap { max-width: 440px; margin: 0 auto; }
a { color: var(--red-deep); }
button { font-family: inherit; }
:focus-visible { outline: 3px solid var(--gold); outline-offset: 2px; }

/* top nav: two paper tabs */
.nav { display: flex; gap: 8px; margin: 0 0 12px; }
.nav a {
  flex: 1; text-align: center; padding: 8px 6px; text-decoration: none; color: var(--paper);
  background: var(--red-deep); border-radius: 8px; border: 1px solid var(--gold); font-weight: 700;
}
.nav a[aria-current="page"] { background: var(--gold); color: var(--ink); }

/* the calendar sheet */
.sheet-stack { position: relative; margin-bottom: 14px; }
.sheet-stack::before, .sheet-stack::after {
  content: ""; position: absolute; left: 6px; right: 6px; height: 100%; border-radius: var(--radius);
  background: var(--paper-edge); z-index: 0; box-shadow: 0 1px 0 rgba(0,0,0,.15);
}
.sheet-stack::before { top: 7px; transform: rotate(-.6deg); }
.sheet-stack::after { top: 13px; left: 10px; right: 10px; background: #e3cc98; transform: rotate(.5deg); }
.sheet {
  position: relative; z-index: 1; background: var(--paper); border-radius: var(--radius); overflow: hidden;
  box-shadow: 0 6px 16px rgba(60,20,10,.35); transform-origin: 50% 0; border: 1px solid #d9bd7a;
}
.sheet-head {
  position: relative; background: linear-gradient(180deg, var(--red) 0%, var(--red-deep) 100%);
  color: var(--gold-soft); text-align: center; padding: 26px 12px 12px; border-bottom: 3px double var(--gold);
}
.holes { position: absolute; top: 8px; left: 0; right: 0; display: flex; justify-content: space-around; padding: 0 22%; }
.holes i { width: 12px; height: 12px; border-radius: 50%; background: var(--wall); box-shadow: inset 0 2px 3px rgba(0,0,0,.45); }
.ym { font-size: 1.15rem; letter-spacing: .3em; font-weight: 700; margin: 0; }
.ganzhi-line { font-size: .85rem; opacity: .9; margin: 2px 0 0; letter-spacing: .12em; }
.perf {
  height: 10px; background:
    radial-gradient(circle at 6px 0, var(--wall) 5px, transparent 5.5px) 0 0 / 14px 10px repeat-x;
  margin-top: -1px;
}
.numeral-box { text-align: center; padding: 6px 12px 0; }
.numeral {
  font-size: clamp(7rem, 38vw, 9.5rem); line-height: 1; font-weight: 900; margin: 0;
  color: var(--red); text-shadow: 2px 2px 0 var(--gold), 4px 4px 0 rgba(120,60,10,.25);
  font-variant-numeric: tabular-nums;
}
.weekday { font-size: 1.4rem; letter-spacing: .5em; margin: 0 0 0 .5em; color: var(--ink); font-weight: 700; }
.lunar { font-size: 1.15rem; color: var(--red-deep); margin: 4px 0 0; font-weight: 700; }
.chip {
  display: inline-block; background: var(--red); color: var(--gold-soft); border-radius: 999px;
  padding: 2px 12px; font-size: .85rem; margin-top: 8px; border: 1px solid var(--gold);
}
.jie-note { margin: 10px 14px 0; padding: 8px 10px; background: #fff6d8; border: 1px dashed var(--gold); border-radius: 8px; font-size: .88rem; }

.facts-row { display: grid; grid-template-columns: repeat(4, 1fr); gap: 0; margin: 14px 12px 0; border: 1px solid var(--gold); border-radius: 8px; overflow: hidden; }
.fact { text-align: center; padding: 6px 2px; border-right: 1px solid var(--gold-soft); background: rgba(255,255,255,.35); }
.fact:last-child { border-right: 0; }
.fact small { display: block; color: var(--ink-soft); font-size: .72rem; }
.fact b { font-size: 1.15rem; }
.fact.black b { color: var(--ji); }
.fact.yellow b { color: var(--red); }

/* 宜 / 忌 columns */
.yiji { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; padding: 14px 12px 4px; }
.col h2 { margin: 0 0 6px; display: flex; align-items: center; gap: 8px; font-size: 1rem; }
.seal {
  display: inline-flex; align-items: center; justify-content: center; width: 2rem; height: 2rem;
  font-size: 1.3rem; font-weight: 900; color: #fff; transform: rotate(-6deg); border-radius: 4px;
}
.seal.yi { background: var(--yi); box-shadow: 0 0 0 2px var(--paper), 0 0 0 3px var(--yi); border-radius: 50%; }
.seal.ji { background: var(--ji); box-shadow: 0 0 0 2px var(--paper), 0 0 0 3px var(--ji); }
.col details { margin: 0 0 6px; border-left: 4px solid var(--yi); background: rgba(255,255,255,.55); border-radius: 4px; }
.col.ji details { border-left-color: var(--ji); }
.col summary { cursor: pointer; padding: 6px 8px; font-weight: 700; list-style: none; min-height: 36px; }
.col summary::-webkit-details-marker { display: none; }
.col summary::after { content: " ＋"; color: var(--gold); font-weight: 400; }
.col details[open] summary::after { content: " －"; }
.why { padding: 0 8px 8px; font-size: .8rem; color: var(--ink-soft); }
.why p { margin: 3px 0; }
.why code { font-family: ui-monospace, Menlo, monospace; font-size: .74rem; background: #f3e4b8; padding: 0 4px; border-radius: 3px; }
.empty { color: var(--ink-soft); font-size: .85rem; padding: 4px 2px; }
.conflict { margin: 6px 12px 0; padding: 8px 10px; background: repeating-linear-gradient(135deg, #f2e6c6 0 6px, #ece0bd 6px 12px); border-radius: 8px; font-size: .88rem; border: 1px solid #c9b27a; }
.conflict h3 { margin: 0 0 2px; font-size: .92rem; }

.shensha { padding: 8px 12px 0; }
.shensha h2 { font-size: .9rem; margin: 6px 0; color: var(--ink-soft); }
.tags { display: flex; flex-wrap: wrap; gap: 6px; }
.tag { border: 1px solid var(--gold); background: #fff8e0; border-radius: 6px; padding: 2px 8px; font-size: .85rem; }
.tag.xiong { border-color: var(--ink-soft); background: #ece4d4; }

.sheet-foot { padding: 12px; }
.tear {
  width: 100%; border: 2px solid var(--gold); background: linear-gradient(180deg, var(--red), var(--red-deep)); color: var(--gold-soft);
  font-size: 1.1rem; font-weight: 700; padding: 12px; border-radius: 10px; cursor: pointer; letter-spacing: .2em; min-height: 48px;
}
.tear:active { transform: translateY(1px); }
.sub-actions { display: flex; gap: 8px; margin-top: 8px; }
.sub-actions button, .sub-actions input {
  flex: 1; min-height: 44px; border-radius: 8px; border: 1px solid var(--gold); background: #fff8e0; color: var(--ink); font: inherit; padding: 0 8px;
}
.sub-actions button { cursor: pointer; }

/* tear animation: the sheet peels from the top-left and flies off */
.sheet.tearing { animation: tear .55s cubic-bezier(.5,0,.8,.4) forwards; }
.sheet.arriving { animation: arrive .35s ease-out; }
@keyframes tear {
  0% { transform: rotate(0); opacity: 1; }
  35% { transform: rotate(-3deg) translateY(-6px); }
  100% { transform: rotate(-22deg) translate(-130%, 40px); opacity: 0; }
}
@keyframes arrive { from { transform: translateY(8px); opacity: .5; } to { transform: none; opacity: 1; } }
.sheet.tearing-back { animation: tearBack .5s ease-in forwards; }
@keyframes tearBack { to { transform: rotate(18deg) translate(130%, 30px); opacity: 0; } }
@media (prefers-reduced-motion: reduce) {
  .sheet.tearing, .sheet.tearing-back { animation: fade .2s forwards; }
  .sheet.arriving { animation: none; }
  @keyframes fade { to { opacity: 0; } }
}

.notice {
  margin: 12px 0 0; padding: 10px 12px; background: #fff3c4; border: 2px solid var(--gold); border-radius: 10px; font-size: .88rem;
}
.notice.draft { background: #ffe1db; border-color: var(--red); }
.notice strong { color: var(--red-deep); }
.footer { margin-top: 14px; font-size: .78rem; color: var(--ink); opacity: .85; text-align: center; }
.footer p { margin: 4px 0; }

/* 择日 */
.card { background: var(--paper); border: 1px solid #d9bd7a; border-radius: var(--radius); padding: 14px; box-shadow: 0 4px 12px rgba(60,20,10,.3); margin-bottom: 12px; }
.card h1 { margin: 0 0 8px; font-size: 1.25rem; color: var(--red-deep); }
.card h2 { font-size: 1.05rem; margin: 0 0 6px; }
label.field { display: block; margin: 10px 0 0; font-weight: 700; font-size: .92rem; }
.field select, .field input {
  display: block; width: 100%; min-height: 44px; margin-top: 4px; padding: 0 10px; font: inherit;
  border: 1px solid var(--gold); border-radius: 8px; background: #fff8e0; color: var(--ink);
}
.row2 { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; }
fieldset { border: 0; padding: 0; margin: 12px 0 0; }
legend { font-weight: 700; font-size: .92rem; padding: 0; }
.zodiac { display: grid; grid-template-columns: repeat(6, 1fr); gap: 6px; margin-top: 6px; }
.zodiac label { display: block; }
.zodiac input { position: absolute; opacity: 0; pointer-events: none; }
.zodiac span {
  display: block; text-align: center; padding: 8px 0; min-height: 44px; border: 1px solid var(--gold); border-radius: 8px; background: #fff8e0; cursor: pointer; user-select: none;
}
.zodiac span small { display: block; font-size: .68rem; color: var(--ink-soft); }
.zodiac input:checked + span { background: var(--red); color: var(--gold-soft); border-color: var(--red-deep); }
.zodiac input:focus-visible + span { outline: 3px solid var(--gold); outline-offset: 2px; }
.zodiac input:disabled + span { opacity: .45; cursor: not-allowed; }
.hint { font-size: .8rem; color: var(--ink-soft); margin: 4px 0 0; }
.go { margin-top: 14px; }
.result-msg { font-size: 1rem; margin: 0 0 8px; }
.result-msg.none { padding: 10px; border: 2px dashed var(--red); background: #ffe9e4; border-radius: 8px; }
.tickets { list-style: none; padding: 0; margin: 0; display: grid; gap: 8px; }
.ticket { position: relative; display: grid; grid-template-columns: 64px 1fr; background: #fffaf0; border: 1px solid var(--gold); border-radius: 8px; overflow: hidden; }
.ticket .stub { background: var(--red); color: var(--gold-soft); text-align: center; padding: 6px 2px; border-right: 2px dashed var(--gold); }
.ticket .stub b { display: block; font-size: 1.9rem; line-height: 1.1; }
.ticket .stub small { font-size: .7rem; }
.ticket .body { padding: 6px 10px; font-size: .88rem; }
.ticket .tier { font-weight: 800; }
.ticket.meets .tier { color: var(--red); }
.ticket.caveat .stub { background: var(--gold); color: var(--ink); }
.ticket.caveat .tier { color: #8a5d00; }
.ticket.conflict_unresolved { background: repeating-linear-gradient(135deg, #f2e6c6 0 6px, #ece0bd 6px 12px); }
.ticket.conflict_unresolved .stub { background: #7a6a55; }
.ticket.excluded .stub { background: var(--ji); }
.ticket ul { margin: 2px 0 0; padding-left: 1.1em; color: var(--ink-soft); }
.ticket a.open { font-size: .8rem; }
details.excluded-group > summary { cursor: pointer; font-weight: 700; padding: 8px 0; min-height: 44px; }
.summary-counts { display: flex; flex-wrap: wrap; gap: 6px; margin: 6px 0 10px; }
.summary-counts span { border: 1px solid var(--gold); border-radius: 999px; padding: 2px 10px; font-size: .82rem; background: #fff8e0; }
.err { color: var(--red-deep); font-weight: 700; }