/* ==========================================================================
   CAL-Docs 埋め込みツール（app-cal-docs.html）
   ページ内で年間休日カレンダーを生成する。API は cal.nav-docs.com の
   /api/free/* をそのまま利用（DB書き込みなし・会員登録不要）。
   ========================================================================== */

.caltool-section {
  padding-top: 56px;
  padding-bottom: 72px;
}

.caltool {
  display: grid;
  grid-template-columns: minmax(320px, 400px) 1fr;
  gap: 28px;
  align-items: start;
  margin-top: 40px;
}

@media (max-width: 900px) {
  .caltool {
    grid-template-columns: 1fr;
  }
}

/* ---------- フォーム ---------- */

.caltool__form {
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-md);
  padding: 26px 24px 24px;
  position: sticky;
  top: 92px;
}

@media (max-width: 900px) {
  .caltool__form {
    position: static;
  }
}

.caltool__field {
  margin-bottom: 18px;
}

.caltool__field:last-of-type {
  margin-bottom: 0;
}

.caltool__label {
  display: block;
  font-size: 0.82rem;
  font-weight: 700;
  color: var(--color-primary);
  letter-spacing: 0.02em;
  margin-bottom: 6px;
}

.caltool__hint {
  font-weight: 400;
  color: var(--color-text-light);
  font-size: 0.76rem;
  margin-left: 6px;
}

.caltool input[type="text"],
.caltool input[type="date"],
.caltool input[type="time"],
.caltool input[type="number"],
.caltool select {
  width: 100%;
  padding: 9px 11px;
  font-family: inherit;
  font-size: 0.9rem;
  color: var(--color-text);
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  transition: border-color var(--transition), box-shadow var(--transition);
}

.caltool input:focus,
.caltool select:focus {
  outline: none;
  border-color: var(--color-accent);
  box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.14);
}

.caltool__row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
}

.caltool__presets {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin-top: 7px;
}

.caltool__preset {
  font-family: inherit;
  font-size: 0.74rem;
  padding: 4px 10px;
  color: var(--color-text-muted);
  background: var(--color-bg-muted);
  border: 1px solid var(--color-border);
  border-radius: 999px;
  cursor: pointer;
  transition: all var(--transition);
}

.caltool__preset:hover,
.caltool__preset:focus-visible {
  color: var(--color-accent);
  border-color: var(--color-accent);
  background: var(--color-bg);
}

/* 曜日チェック */
.caltool__weekdays {
  display: flex;
  gap: 5px;
}

.caltool__weekday {
  flex: 1;
  position: relative;
}

.caltool__weekday input {
  position: absolute;
  opacity: 0;
  width: 100%;
  height: 100%;
  margin: 0;
  cursor: pointer;
}

.caltool__weekday span {
  display: block;
  text-align: center;
  padding: 8px 0;
  font-size: 0.85rem;
  font-weight: 500;
  color: var(--color-text-muted);
  background: var(--color-bg-muted);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  transition: all var(--transition);
  pointer-events: none;
}

.caltool__weekday input:checked + span {
  color: #fff;
  background: var(--color-accent);
  border-color: var(--color-accent);
}

.caltool__weekday input:focus-visible + span {
  box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.3);
}

/* チェックボックス行 */
.caltool__check {
  display: flex;
  align-items: flex-start;
  gap: 8px;
  font-size: 0.86rem;
  color: var(--color-text);
  cursor: pointer;
  line-height: 1.55;
}

.caltool__check input {
  margin-top: 3px;
  accent-color: var(--color-accent);
  flex-shrink: 0;
}

/* 特別休日 */
.caltool__special {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 7px;
  padding: 10px;
  margin-bottom: 8px;
  background: var(--color-bg-subtle);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
}

.caltool__special-dates {
  grid-column: 1 / -1;
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  align-items: center;
  gap: 6px;
  font-size: 0.78rem;
  color: var(--color-text-light);
}

.caltool__special-remove {
  font-family: inherit;
  font-size: 0.76rem;
  padding: 0 10px;
  color: #b91c1c;
  background: transparent;
  border: 1px solid #fecaca;
  border-radius: var(--radius-sm);
  cursor: pointer;
  white-space: nowrap;
  transition: all var(--transition);
}

.caltool__special-remove:hover {
  background: #fef2f2;
  border-color: #f87171;
}

.caltool__add {
  font-family: inherit;
  font-size: 0.8rem;
  font-weight: 500;
  padding: 7px 14px;
  color: var(--color-accent);
  background: var(--color-bg);
  border: 1px dashed var(--color-accent);
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: all var(--transition);
}

.caltool__add:hover {
  background: rgba(37, 99, 235, 0.06);
}

/* 任意項目の折りたたみ */
.caltool__details {
  margin-top: 18px;
  border-top: 1px solid var(--color-border);
  padding-top: 14px;
}

.caltool__details summary {
  font-size: 0.82rem;
  font-weight: 700;
  color: var(--color-text-muted);
  cursor: pointer;
  list-style: none;
  display: flex;
  align-items: center;
  gap: 6px;
}

.caltool__details summary::-webkit-details-marker {
  display: none;
}

.caltool__details summary::before {
  content: "＋";
  font-size: 0.9rem;
  color: var(--color-accent);
}

.caltool__details[open] summary::before {
  content: "－";
}

.caltool__details-body {
  margin-top: 14px;
}

/* 送信 */
.caltool__submit {
  width: 100%;
  margin-top: 22px;
  padding: 13px 20px;
  font-family: inherit;
  font-size: 0.98rem;
  font-weight: 700;
  color: #fff;
  background: var(--color-accent);
  border: none;
  border-radius: var(--radius-md);
  cursor: pointer;
  transition: background var(--transition), transform var(--transition);
}

.caltool__submit:hover:not(:disabled) {
  background: var(--color-accent-light);
  transform: translateY(-1px);
}

.caltool__submit:disabled {
  opacity: 0.6;
  cursor: progress;
  transform: none;
}

.caltool__note {
  margin-top: 10px;
  font-size: 0.74rem;
  color: var(--color-text-light);
  text-align: center;
  line-height: 1.6;
}

/* ---------- 結果 ---------- */

.caltool__result {
  min-height: 320px;
}

.caltool__placeholder {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 10px;
  min-height: 320px;
  padding: 40px 24px;
  text-align: center;
  color: var(--color-text-light);
  background: var(--color-bg-subtle);
  border: 1px dashed var(--color-border);
  border-radius: var(--radius-lg);
}

.caltool__placeholder strong {
  color: var(--color-text-muted);
  font-size: 1rem;
  font-weight: 700;
}

.caltool__placeholder p {
  font-size: 0.85rem;
  max-width: 34em;
}

/* エラー */
.caltool__error {
  padding: 20px 22px;
  background: #fef2f2;
  border: 1px solid #fecaca;
  border-radius: var(--radius-md);
  color: #991b1b;
  font-size: 0.88rem;
  line-height: 1.75;
}

.caltool__error strong {
  display: block;
  margin-bottom: 6px;
  font-size: 0.95rem;
}

.caltool__error a {
  color: #991b1b;
  font-weight: 700;
}

/* サマリー */
.caltool__summary {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
  gap: 12px;
  margin-bottom: 18px;
}

.caltool__stat {
  padding: 16px 18px;
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-sm);
}

.caltool__stat b {
  display: block;
  font-size: 1.7rem;
  font-weight: 700;
  color: var(--color-primary);
  line-height: 1.2;
  font-variant-numeric: tabular-nums;
}

.caltool__stat span {
  display: block;
  margin-top: 2px;
  font-size: 0.76rem;
  color: var(--color-text-light);
  letter-spacing: 0.03em;
}

/* 出力ボタン */
.caltool__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-bottom: 22px;
}

.caltool__download {
  font-family: inherit;
  font-size: 0.88rem;
  font-weight: 700;
  padding: 10px 20px;
  color: var(--color-primary);
  background: var(--color-bg);
  border: 1.5px solid var(--color-primary);
  border-radius: var(--radius-md);
  cursor: pointer;
  transition: all var(--transition);
}

.caltool__download:hover:not(:disabled) {
  color: #fff;
  background: var(--color-primary);
}

.caltool__download:disabled {
  opacity: 0.5;
  cursor: progress;
}

/* 月グリッド */
.caltool__months {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(232px, 1fr));
  gap: 14px;
}

.caltool__month {
  padding: 12px 12px 10px;
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-sm);
}

.caltool__month-head {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  margin-bottom: 8px;
  padding-bottom: 6px;
  border-bottom: 1px solid var(--color-border);
}

.caltool__month-name {
  font-size: 0.95rem;
  font-weight: 700;
  color: var(--color-primary);
}

.caltool__month-count {
  font-size: 0.72rem;
  color: var(--color-text-light);
  font-variant-numeric: tabular-nums;
}

.caltool__grid {
  display: grid;
  grid-template-columns: repeat(7, 1fr);
  gap: 2px;
}

.caltool__dow {
  text-align: center;
  font-size: 0.66rem;
  font-weight: 700;
  color: var(--color-text-light);
  padding-bottom: 3px;
}

.caltool__dow--sat { color: #2563eb; }
.caltool__dow--sun { color: #dc2626; }

.caltool__day {
  position: relative;
  aspect-ratio: 1 / 1;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.76rem;
  color: var(--color-text);
  border-radius: 3px;
  font-variant-numeric: tabular-nums;
}

.caltool__day--empty { visibility: hidden; }

.caltool__day--holiday {
  background: #fee2e2;
  color: #b91c1c;
  font-weight: 700;
}

.caltool__day--named::after {
  content: "";
  position: absolute;
  bottom: 2px;
  left: 50%;
  transform: translateX(-50%);
  width: 3px;
  height: 3px;
  border-radius: 50%;
  background: currentColor;
}

/* 転換導線 */
.caltool__upsell {
  margin-top: 22px;
  padding: 18px 22px;
  background: var(--color-bg-subtle);
  border: 1px solid var(--color-border);
  border-left: 3px solid var(--color-accent);
  border-radius: var(--radius-md);
  font-size: 0.87rem;
  color: var(--color-text-muted);
  line-height: 1.8;
}

.caltool__upsell strong {
  color: var(--color-primary);
}

.caltool__upsell a {
  color: var(--color-accent);
  font-weight: 700;
}

/* 印刷時はフォームを落とす */
@media print {
  .caltool__form,
  .caltool__actions,
  .caltool__upsell {
    display: none;
  }
  .caltool {
    grid-template-columns: 1fr;
  }
}

@media (prefers-reduced-motion: reduce) {
  .caltool * {
    transition: none !important;
  }
}