/* ==========================================================================
   計算器 (Calculator) shared styles
   ========================================================================== */
.calc-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 10px;
  margin: 14px 0;
}
@media (min-width: 540px) {
  .calc-grid { grid-template-columns: 1fr 1fr; }
}
.calc-section-title {
  font-size: 1.1rem;
  color: var(--ink);
  margin: 22px 0 8px;
  padding-bottom: 4px;
  border-bottom: 1px solid var(--line);
  letter-spacing: 0.01em;
}
.calc-card {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 12px 14px;
  background: var(--bg-2);
  border: 1px solid var(--line);
  border-left: 4px solid var(--line-2);
  border-radius: var(--r-md);
  color: var(--ink);
  text-decoration: none;
  transition: transform 0.15s ease, border-color 0.15s ease, box-shadow 0.15s ease, background 0.15s ease;
  min-height: 64px;
  position: relative;
  overflow: hidden;
}
.calc-card:hover {
  transform: translateY(-2px);
  background: var(--panel);
  text-decoration: none;
}
.calc-card-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  border-radius: 10px;
  font-size: 22px;
  background: var(--bg);
  border: 1px solid var(--line-2);
  flex-shrink: 0;
  line-height: 1;
}
.calc-card-icon svg {
  display: block;
  width: 22px;
  height: 22px;
}
.calc-card-body {
  display: flex;
  flex-direction: column;
  gap: 2px;
  flex: 1 1 0;
  min-width: 0;
  line-height: 1.4;
}
.calc-card-title {
  font-size: 16px;
  font-weight: 700;
  color: var(--ink);
  letter-spacing: 0.01em;
  white-space: normal;
}
.calc-card-desc {
  font-size: 12px;
  color: var(--muted);
  line-height: 1.4;
}

/* --- Hover preview (formula + tip) — auto fade-out after 5s --- */
.calc-card.has-preview .calc-card-preview {
  display: block;
  max-height: 0;
  opacity: 0;
  overflow: hidden;
  transition: max-height 0.25s ease, opacity 0.18s ease, margin-top 0.18s ease;
  margin-top: 0;
  pointer-events: none;
}
.calc-card.has-preview:hover .calc-card-preview,
.calc-card.has-preview:focus-visible .calc-card-preview {
  max-height: 110px;
  opacity: 1;
  margin-top: 6px;
  pointer-events: auto;
  /* Auto fade-out after 5s of hover (keeps click area clean) */
  animation: calc-preview-fade 5s ease forwards;
}
/* When mouse leaves, drop the animation so the next hover restarts the timer */
.calc-card.has-preview:not(:hover):not(:focus-visible) .calc-card-preview {
  animation: none;
}
@keyframes calc-preview-fade {
  0%, 80% { opacity: 1; max-height: 110px; margin-top: 6px; pointer-events: auto; }
  100%    { opacity: 0; max-height: 0;  margin-top: 0;    pointer-events: none; }
}
/* Force-show previews (for ?preview=all debug param) */
.calc-card.has-preview.force-show .calc-card-preview {
  max-height: 110px;
  opacity: 1;
  margin-top: 6px;
  pointer-events: auto;
  animation: none;
}
.calc-card-formula {
  display: block;
  font-family: ui-monospace, SFMono-Regular, "JetBrains Mono", Menlo, monospace;
  font-size: 11px;
  line-height: 1.4;
  color: var(--ink-2);
  background: var(--bg);
  border: 1px solid var(--line-2);
  border-radius: 4px;
  padding: 4px 6px;
  white-space: pre-wrap;
  word-break: break-word;
}
.calc-card-tip {
  display: block;
  font-size: 11px;
  line-height: 1.4;
  color: var(--muted);
  margin-top: 4px;
  padding-left: 8px;
  border-left: 2px solid currentColor;
  opacity: 0.85;
}

/* Backwards-compat: if templates still use <strong><span> directly */
.calc-card > strong {
  font-size: 16px;
  font-weight: 700;
  color: var(--ink);
  display: block;
  line-height: 1.3;
  flex: 0 0 auto;
  min-width: 80px;
  max-width: 130px;
}
.calc-card > span.muted {
  font-size: 12px;
  color: var(--muted);
  line-height: 1.4;
  display: block;
  flex: 1 1 0;
  min-width: 0;
}

/* --- Per-color accent + border + icon background --- */
.calc-color-green {
  border-left-color: var(--good);
}
.calc-color-green:hover { box-shadow: 0 0 0 1px var(--good), 0 4px 16px rgba(121, 208, 122, 0.2); }
.calc-color-green .calc-card-icon { background: rgba(121, 208, 122, 0.15); color: var(--good); border-color: rgba(121, 208, 122, 0.4); }

.calc-color-gold {
  border-left-color: var(--gold);
}
.calc-color-gold:hover { box-shadow: 0 0 0 1px var(--gold), 0 4px 16px rgba(240, 184, 91, 0.2); }
.calc-color-gold .calc-card-icon { background: rgba(240, 184, 91, 0.15); color: var(--gold); border-color: rgba(240, 184, 91, 0.4); }

.calc-color-red {
  border-left-color: var(--bad);
}
.calc-color-red:hover { box-shadow: 0 0 0 1px var(--bad), 0 4px 16px rgba(240, 133, 133, 0.2); }
.calc-color-red .calc-card-icon { background: rgba(240, 133, 133, 0.15); color: var(--bad); border-color: rgba(240, 133, 133, 0.4); }

.calc-color-blue {
  border-left-color: var(--cyan);
}
.calc-color-blue:hover { box-shadow: 0 0 0 1px var(--cyan), 0 4px 16px rgba(107, 208, 224, 0.2); }
.calc-color-blue .calc-card-icon { background: rgba(107, 208, 224, 0.15); color: var(--cyan); border-color: rgba(107, 208, 224, 0.4); }

.calc-color-purple {
  border-left-color: #b48cd6;
}
.calc-color-purple:hover { box-shadow: 0 0 0 1px #b48cd6, 0 4px 16px rgba(180, 140, 214, 0.2); }
.calc-color-purple .calc-card-icon { background: rgba(180, 140, 214, 0.15); color: #b48cd6; border-color: rgba(180, 140, 214, 0.4); }

.calc-color-orange {
  border-left-color: #e6a370;
}
.calc-color-orange:hover { box-shadow: 0 0 0 1px #e6a370, 0 4px 16px rgba(230, 163, 112, 0.2); }
.calc-color-orange .calc-card-icon { background: rgba(230, 163, 112, 0.15); color: #e6a370; border-color: rgba(230, 163, 112, 0.4); }

.calc-color-cyan {
  border-left-color: #7ad3e0;
}
.calc-color-cyan:hover { box-shadow: 0 0 0 1px #7ad3e0, 0 4px 16px rgba(122, 211, 224, 0.2); }
.calc-color-cyan .calc-card-icon { background: rgba(122, 211, 224, 0.15); color: #7ad3e0; border-color: rgba(122, 211, 224, 0.4); }

.calc-color-pink {
  border-left-color: #e88ca0;
}
.calc-color-pink:hover { box-shadow: 0 0 0 1px #e88ca0, 0 4px 16px rgba(232, 140, 160, 0.2); }
.calc-color-pink .calc-card-icon { background: rgba(232, 140, 160, 0.15); color: #e88ca0; border-color: rgba(232, 140, 160, 0.4); }

.calc-form {
  display: grid;
  gap: 12px;
  margin: 12px 0;
}
.calc-form .row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
}
.calc-form .row.three { grid-template-columns: 1fr 1fr 1fr; }
.calc-form label {
  display: grid;
  gap: 4px;
  font-size: 13px;
  color: var(--muted);
}
.calc-form label > input,
.calc-form label > select { width: 100%; }
.calc-form button { width: auto; min-width: 8rem; }

.calc-result {
  margin-top: 12px;
  background: var(--bg-2);
  border: 1px solid var(--line);
  border-radius: var(--r-md);
  padding: 14px 16px;
  display: grid;
  gap: 8px;
}
.calc-result .row {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  gap: 12px;
  border-bottom: 1px dashed var(--line-2);
  padding-bottom: 6px;
}
.calc-result .row:last-child { border-bottom: none; padding-bottom: 0; }
.calc-result .row .k { color: var(--muted); font-size: 13px; }
.calc-result .row .v {
  color: var(--gold);
  font-weight: 700;
  font-variant-numeric: tabular-nums;
  font-size: 1.05rem;
}
.calc-result .row.highlight .v { color: var(--cyan); font-size: 1.4rem; }

.calc-formula {
  background: var(--bg);
  border: 1px solid var(--line);
  border-left: 3px solid var(--gold);
  border-radius: 4px;
  padding: 8px 12px;
  font-family: ui-monospace, "SF Mono", Menlo, monospace;
  font-size: 12px;
  color: var(--ink-2);
  overflow-x: auto;
}

.calc-table {
  width: 100%;
  border-collapse: separate;
  border-spacing: 0;
  font-size: 13px;
  margin-top: 12px;
}
.calc-table thead th {
  background: var(--bg-2);
  color: var(--ink-2);
  font-weight: 600;
  font-size: 12px;
  padding: 8px 10px;
  border-bottom: 1px solid var(--line);
  position: sticky;
  top: 0;
}
.calc-table td {
  padding: 6px 10px;
  border-bottom: 1px solid var(--line-2);
  font-variant-numeric: tabular-nums;
}
.calc-table tr:hover td { background: rgba(255,255,255,0.02); }
.calc-table .num { text-align: right; }
.calc-table-wrap {
  max-height: 420px;
  overflow: auto;
  border: 1px solid var(--line);
  border-radius: var(--r-md);
  margin-top: 8px;
}

@media (max-width: 800px) {
  .calc-form .row,
  .calc-form .row.three { grid-template-columns: 1fr; }
}

/* Phase 2: mint tone (稅務 category) */
.calc-color-mint { border-left-color: #5dcfa8 !important; }
.calc-color-mint .calc-card-icon { background: rgba(93,207,168, 0.15) !important; color: #5dcfa8 !important; }

/* ---- moved from styles.css 2026-10-15 (calc routes only) ---- */
/* ==========================================================================
   Calculator home (collapse-based layout)
   ========================================================================== */
.calc-home { max-width: 720px; margin: 0 auto; }

/* Category accordion (collapse-style) */
.calc-cat {
  background: var(--bg-2);
  border: 1px solid var(--line);
  border-radius: var(--r-md);
  overflow: hidden;
  position: relative;
}
.calc-cat::before {
  content: "";
  position: absolute;
  left: 0; top: 0; bottom: 0;
  width: 4px;
  background: var(--line);
}
.calc-cat.s-pass::before { background: var(--good); }
.calc-cat.s-near::before { background: var(--gold); }
.calc-cat.s-fail::before { background: var(--bad); }
.calc-cat-head {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 14px 16px;
  cursor: pointer;
  user-select: none;
  -webkit-tap-highlight-color: transparent;
  min-height: 56px;
}
.calc-cat-head:hover { background: var(--panel); }
.calc-cat-icon { font-size: 20px; flex-shrink: 0; }
.calc-cat-label {
  font-weight: 700;
  font-size: 16px;
  color: var(--ink);
  flex: 1 1 0;
  min-width: 0;
  line-height: 1.3;
}
.calc-cat-count {
  font-size: 12px;
  color: var(--muted);
  background: var(--bg);
  padding: 2px 8px;
  border-radius: 999px;
  border: 1px solid var(--line-2);
  font-weight: 600;
  flex-shrink: 0;
}
.calc-cat-maps {
  display: inline-flex;
  gap: 3px;
  flex-shrink: 0;
}
.calc-cat-maps-chip {
  display: inline-block;
  font-size: 10px;
  font-weight: 700;
  padding: 2px 6px;
  border-radius: 999px;
  background: linear-gradient(135deg, var(--gold), var(--gold-2));
  color: var(--ink-on);
  letter-spacing: 0.02em;
  white-space: nowrap;
}

/* 5S mapping inside category body (only used on /learn) */
.learn-cat-maps {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 5px;
  margin: 12px 0 8px;
  padding: 8px 12px;
  background: var(--bg-2);
  border: 1px solid var(--line-2);
  border-radius: var(--r-sm);
}
.learn-cat-maps-label {
  font-size: 12px;
  color: var(--muted);
  font-weight: 600;
  margin-right: 2px;
}
.learn-cat-maps-chip {
  display: inline-block;
  font-size: 11px;
  font-weight: 700;
  padding: 2px 8px;
  border-radius: 999px;
  background: linear-gradient(135deg, var(--gold), var(--gold-2));
  color: var(--ink-on);
  border: 1px solid transparent;
  white-space: nowrap;
}
.calc-cat-chev {
  width: 20px;
  text-align: center;
  color: var(--muted);
  font-size: 14px;
  transition: transform 0.18s ease;
}
.calc-cat:not(.collapsed) .calc-cat-chev { transform: rotate(90deg); color: var(--ink); }
.calc-cat-body {
  display: block;
  padding: 0 16px 16px;
  border-top: 1px solid var(--line-2);
}
.calc-cat.collapsed .calc-cat-body { display: none; }

/* HTML5 <details>/<summary> accordion — replaces old .collapsed pattern.
   The chevron rotates 90° when the <details> is in its "open" state. */
.calc-cat > summary.calc-cat-head { list-style: none; cursor: pointer; user-select: none; }
.calc-cat > summary.calc-cat-head::-webkit-details-marker { display: none; }
.calc-cat > summary.calc-cat-head::marker { display: none; }
.calc-cat .calc-cat-chev {
  margin-left: auto;
  transition: transform 0.18s ease;
  color: var(--muted);
  font-size: 14px;
}
.calc-cat[open] > summary.calc-cat-head .calc-cat-chev { transform: rotate(90deg); color: var(--ink); }

/* Variant for non-status categories (used by /learn) */
.calc-cat.s-other::before { background: var(--cyan); }

/* Collapsed-by-default hint */
.calc-cat:not([open]) > summary.calc-cat-head .calc-cat-chev { color: var(--muted); }
.calc-cat:not([open]) > summary.calc-cat-head .calc-cat-label::after {
  content: " · 撳開";
  font-weight: 500;
  font-size: 12px;
  color: var(--muted);
}