:root {
  color-scheme: light;
  --bg: #f4f1ea;
  --card: #ffffff;
  --line: #e2ddd2;
  --ink: #2c2a26;
  --ink-sub: #6f6a60;
  --accent: #2f5d62;
  --night: #24506b;
  --nabe: #b5533c;
  --morning: #7a6420;
  --warn-bg: #fdf3e2;
  --warn-line: #e0b26a;
  --radius: 12px;
}

* { box-sizing: border-box; }

/* hidden属性を常に効かせる（display:flex などに打ち消されないように） */
[hidden] { display: none !important; }

html { -webkit-text-size-adjust: 100%; }

body {
  margin: 0;
  padding: 0 0 40px;
  background: var(--bg);
  color: var(--ink);
  font-family: "Hiragino Kaku Gothic ProN", "Hiragino Sans", "Yu Gothic", "Meiryo", system-ui, sans-serif;
  font-size: 16px;
  line-height: 1.6;
}

/* ---------- ログイン ---------- */
.login-overlay {
  position: fixed;
  inset: 0;
  background: var(--accent);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 20px;
  z-index: 100;
}
.login-box {
  background: var(--card);
  border-radius: 14px;
  padding: 28px 26px;
  width: 100%;
  max-width: 360px;
  box-shadow: 0 8px 30px rgba(0,0,0,.2);
}
.login-box h2 {
  margin: 0;
  font-size: 1.2rem;
  letter-spacing: .05em;
  color: var(--accent);
}
.login-sub {
  margin: 2px 0 20px;
  font-size: .85rem;
  color: var(--ink-sub);
}
.login-box label {
  display: block;
  font-size: .82rem;
  color: var(--ink-sub);
  margin-bottom: 4px;
}
.login-box input {
  width: 100%;
  font-size: 1.1rem;
  font-family: inherit;
  padding: 12px;
  border: 1px solid var(--line);
  border-radius: 8px;
  margin-bottom: 14px;
  min-height: 46px;
  background: #fff;
  color: var(--ink);
}
.login-box .primary-btn { width: 100%; }
.login-err {
  margin: 12px 0 0;
  color: #b5533c;
  font-size: .88rem;
}
.login-note {
  margin: 16px 0 0;
  font-size: .76rem;
  color: var(--ink-sub);
}

/* ---------- 取得中 ---------- */
.busy {
  position: fixed;
  inset: 0;
  background: rgba(30,28,24,.35);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 90;
}
.busy-box {
  background: var(--card);
  border-radius: 12px;
  padding: 22px 30px;
  text-align: center;
  font-size: .95rem;
  box-shadow: 0 6px 24px rgba(0,0,0,.2);
}
.spinner {
  width: 30px;
  height: 30px;
  margin: 0 auto 12px;
  border: 3px solid var(--line);
  border-top-color: var(--accent);
  border-radius: 50%;
  animation: spin .8s linear infinite;
}
@keyframes spin { to { transform: rotate(360deg); } }

/* ---------- header ---------- */
.app-header {
  background: var(--accent);
  color: #fff;
  padding: 14px 18px;
  position: sticky;
  top: 0;
  z-index: 20;
  box-shadow: 0 1px 6px rgba(0,0,0,.15);
}
.app-header h1 {
  margin: 0;
  font-size: 1.25rem;
  letter-spacing: .06em;
}
.header-sub {
  font-size: .8rem;
  opacity: .85;
  margin-top: 2px;
}

main {
  max-width: 1120px;   /* iPad横（約1180px）で左右に無駄な余白を作らない幅 */
  margin: 0 auto;
  padding: 14px 16px 0;
}

/* ---------- card ---------- */
.card {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 16px;
  margin-bottom: 16px;
}
.card-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  margin-bottom: 12px;
}
.card-head h2 {
  margin: 0;
  font-size: 1.05rem;
  color: var(--accent);
  letter-spacing: .04em;
}

.link-btn {
  background: none;
  border: none;
  color: var(--accent);
  font-size: .9rem;
  text-decoration: underline;
  cursor: pointer;
  padding: 4px;
  font-family: inherit;
}

.note {
  font-size: .82rem;
  color: var(--ink-sub);
  margin: 8px 0 0;
}

/* ---------- 取込済みのときの1行バー ---------- */
.card.compact { padding: 11px 16px; }
.compact-bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  flex-wrap: wrap;
}
.cb-info { font-size: .95rem; }
.cb-info b { color: var(--accent); }

.badge {
  display: inline-block;
  margin-left: 8px;
  padding: 2px 9px;
  border-radius: 999px;
  font-size: .76rem;
  white-space: nowrap;
  vertical-align: 1px;
}
.badge.ok  { background: #e3efe6; color: #2c6238; border: 1px solid #bcd8c3; }
.badge.est { background: #fbf1dd; color: #8a6520; border: 1px solid #e2c78f; }
.cb-btn {
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 9px 16px;
  font-family: inherit;
  font-size: .88rem;
  color: var(--ink);
  cursor: pointer;
  min-height: 40px;
}
.cb-btn:active { background: #eef4f2; }
.cb-actions {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-shrink: 0;
}
#refreshBtn {
  background: var(--accent);
  border-color: var(--accent);
  color: #fff;
}
#refreshBtn:active { background: #24484c; }

.manual-head {
  margin: 14px 0 6px;
  padding-top: 14px;
  border-top: 1px solid var(--line);
  font-size: .95rem;
}
.manual-head .note { display: inline; margin-left: 8px; }

/* ---------- help ---------- */
.help {
  background: #f8f6f1;
  border: 1px solid var(--line);
  border-radius: 10px;
  padding: 12px 14px 12px 4px;
  margin-bottom: 14px;
  font-size: .9rem;
}
.help ol { margin: 0; padding-left: 26px; }
.help li { margin-bottom: 6px; }
.help a { color: var(--accent); }
.help .note { padding-left: 22px; }
.help-lead { margin: 0 0 8px; padding-left: 22px; }
.help-sub { color: var(--ink-sub); font-size: .85em; }

/* ---------- drop zone ---------- */
.drop-zone {
  border: 2px dashed var(--line);
  border-radius: 10px;
  padding: 20px 14px;
  text-align: center;
  transition: background .15s, border-color .15s;
}
.drop-zone.over {
  background: #eef4f2;
  border-color: var(--accent);
}
.primary-btn {
  background: var(--accent);
  color: #fff;
  border: none;
  border-radius: 8px;
  padding: 12px 22px;
  font-size: 1rem;
  font-family: inherit;
  cursor: pointer;
}
.primary-btn:active { opacity: .85; }
.drop-hint {
  font-size: .8rem;
  color: var(--ink-sub);
  margin: 10px 0 0;
}

.loaded-info {
  margin-top: 14px;
  padding: 10px 12px;
  background: #eef4f2;
  border-radius: 8px;
  font-size: .9rem;
}
.loaded-info b { color: var(--accent); }

.warn {
  margin-top: 12px;
  padding: 10px 12px;
  background: var(--warn-bg);
  border: 1px solid var(--warn-line);
  border-radius: 8px;
  font-size: .88rem;
}
.warn ul { margin: 6px 0 0; padding-left: 20px; }
.warn.soft {
  background: #f2f5f6;
  border-color: #c8d5d8;
  color: var(--ink-sub);
}
.warn.soft b { color: var(--ink); }

/* 2泊目以降の注記（3カードの直下） */
.second-night {
  margin: -6px 0 16px;
  padding: 9px 14px;
  background: #eef1ec;
  border-left: 4px solid var(--morning);
  border-radius: 0 8px 8px 0;
  font-size: .88rem;
  color: var(--ink-sub);
}
.second-night b {
  color: var(--ink);
  font-size: 1.15rem;
  font-variant-numeric: tabular-nums;
}

/* ---------- period ---------- */
.date-row {
  display: flex;
  align-items: flex-end;
  gap: 10px;
  flex-wrap: wrap;
}
.date-field {
  display: flex;
  flex-direction: column;
  gap: 4px;
  flex: 1 1 150px;
}
.date-field span {
  font-size: .8rem;
  color: var(--ink-sub);
}
.date-field input {
  font-size: 1.05rem;
  font-family: inherit;
  padding: 10px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #fff;
  color: var(--ink);
  width: 100%;
  min-height: 44px;
}
.tilde {
  padding-bottom: 12px;
  color: var(--ink-sub);
}

.preset-row {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 14px;
}
.preset-row button {
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 999px;
  padding: 8px 14px;
  font-size: .88rem;
  font-family: inherit;
  color: var(--ink);
  cursor: pointer;
}
.preset-row button:active,
.preset-row button.on {
  background: var(--accent);
  border-color: var(--accent);
  color: #fff;
}

/* ---------- result ---------- */
.period-label {
  text-align: center;
  font-size: 1rem;
  color: var(--ink-sub);
  margin: 4px 0 12px;
}
.period-label b { color: var(--ink); font-size: 1.1rem; }

.order-cards {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 12px;
  margin-bottom: 16px;
}
.order-card {
  background: var(--card);
  border: 1px solid var(--line);
  border-top: 5px solid var(--accent);
  border-radius: var(--radius);
  padding: 14px 12px;
  text-align: center;
}
.order-card.night   { border-top-color: var(--night); }
.order-card.nabe    { border-top-color: var(--nabe); }
.order-card.morning { border-top-color: var(--morning); }

.oc-title {
  font-size: .92rem;
  font-weight: 700;
  letter-spacing: .03em;
}
.order-card.night   .oc-title { color: var(--night); }
.order-card.nabe    .oc-title { color: var(--nabe); }
.order-card.morning .oc-title { color: var(--morning); }

.oc-num {
  font-size: 3rem;
  font-weight: 700;
  line-height: 1.1;
  margin: 6px 0 4px;
  font-variant-numeric: tabular-nums;
}
.oc-num .unit {
  font-size: .95rem;
  font-weight: 400;
  color: var(--ink-sub);
  margin-left: 3px;
}
.oc-formula {
  font-size: .75rem;
  color: var(--ink-sub);
  line-height: 1.45;
}

/* ---------- plan table ---------- */
.plan-table {
  width: 100%;
  border-collapse: collapse;
}
.plan-table th,
.plan-table td {
  border-bottom: 1px solid var(--line);
  padding: 10px 6px;
  text-align: left;
  font-weight: 400;
}
.plan-table th { font-weight: 700; }
.plan-table th small {
  display: block;
  font-size: .72rem;
  font-weight: 400;
  color: var(--ink-sub);
}
.plan-table thead th {
  border-bottom: 2px solid var(--line);
  font-size: .85rem;
  padding-bottom: 6px;
}
.plan-table th.num-head { text-align: right; width: 7em; }
.plan-table td {
  text-align: right;
  font-size: 1.3rem;
  font-weight: 700;
  font-variant-numeric: tabular-nums;
  width: 5.5em;
}
.plan-table td::after {
  content: "名";
  font-size: .78rem;
  font-weight: 400;
  color: var(--ink-sub);
  margin-left: 2px;
}
.plan-table tr.sub th {
  font-weight: 400;
  font-size: .88rem;
  color: var(--ink-sub);
}
.plan-table tr.sub td {
  font-size: 1rem;
  font-weight: 400;
  color: var(--ink-sub);
}

.toddler-box {
  margin-top: 14px;
  padding: 10px 12px;
  background: #f8f6f1;
  border-radius: 8px;
}
.toddler-title {
  font-size: .85rem;
  font-weight: 700;
  color: var(--ink-sub);
}
.toddler-box ul {
  margin: 6px 0 0;
  padding-left: 20px;
  font-size: .92rem;
}

/* ---------- daily table ---------- */
.table-note {
  margin: -4px 0 10px;
  font-size: .8rem;
  color: var(--ink-sub);
  line-height: 1.5;
}
.table-note b { color: var(--ink); }
.table-scroll { overflow-x: auto; }
.daily-table {
  width: 100%;
  border-collapse: collapse;
  font-size: .9rem;
  min-width: 700px;
}
.daily-table th,
.daily-table td {
  border: 1px solid var(--line);
  padding: 7px 5px;
  text-align: center;
  font-variant-numeric: tabular-nums;
}
.daily-table thead th {
  background: #f0ece3;
  font-size: .78rem;
  line-height: 1.3;
  font-weight: 700;
  position: sticky;
  top: 0;
}
.daily-table .col-date { text-align: left; white-space: nowrap; }
.daily-table td.col-date { font-size: .88rem; }
.daily-table th.grp { background: #e6eef0; }
.daily-table td.grp {
  font-weight: 700;
  font-size: 1.05rem;
  background: #f7fafa;
}
.daily-table th.grp2 { background: #eeece2; }
.daily-table td.grp2 { background: #faf8f1; }
.daily-table td.zero { color: #b9b4aa; }
.daily-table tr.sat td.col-date { color: #23608c; }
.daily-table tr.sun td.col-date { color: #ac4437; }
.daily-table tr.empty-day td { background: #faf8f4; color: #b9b4aa; }
.daily-table tfoot td,
.daily-table tfoot th {
  background: #f0ece3;
  font-weight: 700;
  font-size: 1rem;
}

.empty-state { text-align: center; color: var(--ink-sub); }

.app-footer {
  max-width: 900px;
  margin: 0 auto;
  padding: 0 14px;
  font-size: .78rem;
  color: var(--ink-sub);
  text-align: right;
}

/* ---------- iPad横（主な利用環境） ---------- */
@media (min-width: 900px) {
  .oc-num { font-size: 3.6rem; }
  .oc-title { font-size: 1rem; }
  .oc-formula { font-size: .8rem; }
  .daily-table { font-size: .95rem; }
  .daily-table thead th { font-size: .82rem; }
  .daily-table td.grp { font-size: 1.15rem; }
  .daily-table th, .daily-table td { padding: 9px 6px; }
  .period-label { font-size: 1.05rem; }
}

/* ---------- responsive ---------- */
@media (max-width: 560px) {
  .order-cards { grid-template-columns: 1fr; gap: 10px; }
  .order-card {
    display: flex;
    flex-wrap: wrap;
    align-items: baseline;
    justify-content: space-between;
    text-align: left;
    gap: 2px 12px;
    padding: 12px 14px;
  }
  .oc-title { flex: 0 0 auto; font-size: 1rem; }
  .order-card .oc-num { margin: 0; font-size: 2.4rem; white-space: nowrap; }
  .oc-formula { flex-basis: 100%; text-align: left; }
}

/* ---------- print ---------- */
@media print {
  body { background: #fff; }
  .app-header { position: static; background: #fff; color: #000; border-bottom: 2px solid #000; box-shadow: none; }
  #sourceCard, #periodCard, .app-footer, .link-btn { display: none !important; }
  .card, .order-card { border: 1px solid #999; break-inside: avoid; }
  .daily-table { min-width: 0; font-size: .8rem; }
  .table-scroll { overflow: visible; }
}