/* ===========================================================
   Team Shift Board — "Duty Roster" look
   濃紺 + 薄いグレー青、細い罫線、角ばった四角、詰まった密度。
   タイムカードの横に貼ってある勤務表のイメージ。
   =========================================================== */

:root {
  --navy: #1f3a5f;
  --navy-dark: #16293f;
  --navy-soft: #4e6f94;
  --page: #f1f4f8;
  --card: #ffffff;
  --line: #d3dce6;
  --line-soft: #e4eaf1;
  --ink: #16202b;
  --muted: #66788c;
  --danger: #c0392b;
  --danger-soft: #fbeceb;
  --radius: 4px;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  padding: 0 0 32px;
  background: var(--page);
  color: var(--ink);
  font-family: system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  font-size: 15px;
  line-height: 1.5;
}

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0 0 0 0);
  white-space: nowrap;
  border: 0;
}

/* ---------- Header ---------- */

header {
  background: var(--navy);
  color: #fff;
  padding: 18px 16px 16px;
  border-bottom: 3px solid var(--navy-dark);
}

header h1 {
  margin: 0;
  font-size: 20px;
  font-weight: 700;
  letter-spacing: 0.2px;
  display: flex;
  align-items: center;
  gap: 9px;
  flex-wrap: wrap;
}

header h1 .logo {
  color: #fff;
  flex: none;
}

/* タイトルの後半を「勤務表の見出しタブ」に見立てる */
.title-tab {
  background: #fff;
  color: var(--navy);
  padding: 1px 8px 2px;
  border-radius: 2px;
  font-size: 18px;
  letter-spacing: 0.6px;
  text-transform: uppercase;
}

header .tagline {
  margin: 6px 0 0;
  font-size: 13px;
  color: #b8c9de;
}

/* ---------- Layout ---------- */

main {
  padding: 14px 16px 0;
  display: flex;
  flex-direction: column;
  gap: 14px;
  max-width: 720px;
  margin: 0 auto;
}

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

.sechead {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  gap: 10px;
  padding: 11px 12px 8px;
}

.sechead h2 {
  margin: 0;
  font-size: 13px;
  text-transform: uppercase;
  letter-spacing: 0.8px;
  color: var(--muted);
  font-weight: 700;
}

.sechead em {
  font-style: normal;
  font-size: 12.5px;
  color: var(--ink);
  font-weight: 600;
  white-space: nowrap;
}

.sechead em.gap {
  color: var(--danger);
}

/* ---------- Week / Month tabs ---------- */

.viewtabs {
  display: flex;
  border-bottom: 1px solid var(--line);
}

.viewtab {
  flex: 1;
  border: 0;
  border-bottom: 2px solid transparent;
  background: none;
  padding: 9px 0 8px;
  font-family: inherit;
  font-size: 12.5px;
  font-weight: 700;
  letter-spacing: 0.4px;
  text-transform: uppercase;
  color: var(--muted);
  cursor: pointer;
}

.viewtab:hover {
  color: var(--navy);
  background: #f7fafd;
}

.viewtab.is-on {
  color: var(--navy);
  border-bottom-color: var(--navy);
}

/* ---------- Month calendar ---------- */

.mdow {
  display: grid;
  grid-template-columns: repeat(7, 1fr);
  gap: 3px;
  padding: 0 10px 4px;
}

.mdow span {
  text-align: center;
  font-size: 9.5px;
  color: var(--muted);
  text-transform: uppercase;
  letter-spacing: 0.4px;
}

.mgrid {
  display: grid;
  grid-template-columns: repeat(7, 1fr);
  gap: 3px;
  padding: 0 10px 8px;
}

.mday {
  border: 1px solid var(--line);
  border-radius: 3px;
  background: #fff;
  min-height: 50px;
  padding: 3px 0 4px;
  text-align: center;
  cursor: pointer;
  font-family: inherit;
  transition: background 0.15s ease, border-color 0.15s ease;
}

.mday .num {
  display: block;
  font-size: 12.5px;
  font-weight: 600;
  color: var(--ink);
  line-height: 1.2;
}

.mday .dots {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  align-items: center;
  gap: 1.5px;
  min-height: 12px;
  margin: 2px 0 1px;
}

/* 狭い画面でも6個が1行に収まるよう、マスの中の点だけ小さくする */
.mday .dot {
  width: 5px;
  height: 5px;
}

.mday .plus {
  font-size: 9px;
  font-weight: 700;
  color: var(--muted);
  line-height: 1;
}

.mday .cnt {
  display: block;
  font-size: 9.5px;
  font-weight: 700;
  color: var(--navy);
  line-height: 1;
}

.dot {
  display: inline-block;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  border: 1px solid;
}

.d-morning {
  background: #9ed3b8;
  border-color: #1f6f4a;
}

.d-day {
  background: #a9c1db;
  border-color: var(--navy);
}

.d-night {
  background: #c1aedd;
  border-color: #5b3a88;
}

.mday.other {
  background: #f7f9fc;
  border-color: var(--line-soft);
}

.mday.other .num {
  color: #a9b4c1;
}

.mday.today {
  border-color: var(--navy-soft);
  box-shadow: inset 0 0 0 1px var(--navy-soft);
}

.mday.gap .cnt {
  color: var(--danger);
}

.mday.selected {
  background: var(--navy);
  border-color: var(--navy);
  box-shadow: none;
}

.mday.selected .num {
  color: #fff;
}

.mday.selected .cnt,
.mday.selected .plus {
  color: #b8c9de;
}

.mday.selected.gap .cnt {
  color: #ff9d92;
}

.legend {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 4px 12px;
  margin: 0;
  padding: 0 10px 10px;
  font-size: 10.5px;
  color: var(--muted);
}

.legend span {
  display: inline-flex;
  align-items: center;
  gap: 4px;
}

.legend-gap {
  color: var(--danger);
  font-weight: 600;
}

/* ---------- Week strip ---------- */

.weeknav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
  padding: 10px 10px 8px;
}

.weeknav b {
  font-size: 13.5px;
  font-weight: 600;
}

.navbtn {
  border: 1px solid var(--line);
  background: #fff;
  border-radius: 3px;
  width: 30px;
  height: 30px;
  font-size: 15px;
  line-height: 1;
  color: var(--navy);
  cursor: pointer;
  font-family: inherit;
  flex: none;
}

.navbtn:hover {
  background: #eaf1f8;
}

.days {
  display: grid;
  grid-template-columns: repeat(7, 1fr);
  gap: 4px;
  padding: 0 10px 10px;
}

.day {
  border: 1px solid var(--line);
  border-radius: 3px;
  padding: 5px 0 4px;
  text-align: center;
  background: #fff;
  cursor: pointer;
  font-family: inherit;
  transition: background 0.15s ease, border-color 0.15s ease;
}

.day .dow {
  display: block;
  font-size: 10px;
  color: var(--muted);
  text-transform: uppercase;
  letter-spacing: 0.4px;
}

.day .num {
  display: block;
  font-size: 14px;
  font-weight: 600;
  margin: 1px 0;
  color: var(--ink);
}

.day .cnt {
  display: block;
  font-size: 10px;
  color: var(--navy);
  font-weight: 700;
}

.day.today {
  border-color: var(--navy-soft);
  box-shadow: inset 0 0 0 1px var(--navy-soft);
}

.day.gap .cnt {
  color: var(--danger);
}

.day.selected {
  background: var(--navy);
  border-color: var(--navy);
  box-shadow: none;
}

.day.selected .dow,
.day.selected .cnt {
  color: #b8c9de;
}

.day.selected .num {
  color: #fff;
}

.day.selected.gap .cnt {
  color: #ff9d92;
}

/* ---------- Roster table ---------- */

.roster {
  width: 100%;
  border-collapse: collapse;
}

.roster td {
  border-top: 1px solid var(--line-soft);
  padding: 9px 12px;
  vertical-align: middle;
}

.roster td.who {
  font-weight: 600;
}

.roster td.who small {
  display: block;
  font-weight: 400;
  color: var(--muted);
  font-size: 11.5px;
}

.roster td.act {
  text-align: right;
  width: 140px;
}

/* シフトのチップ(押すと編集) */
.chip {
  display: inline-block;
  border-radius: 3px;
  padding: 5px 9px;
  font-size: 11.5px;
  font-weight: 700;
  border: 1px solid;
  cursor: pointer;
  background: #fff;
  font-family: inherit;
  min-width: 92px;
  text-align: center;
}

.chip small {
  display: block;
  font-weight: 500;
  font-size: 10px;
  opacity: 0.85;
}

.c-morning {
  color: #1f6f4a;
  border-color: #9ed3b8;
  background: #eaf6f0;
}

.c-day {
  color: var(--navy);
  border-color: #a9c1db;
  background: #eaf1f8;
}

.c-night {
  color: #5b3a88;
  border-color: #c1aedd;
  background: #f1ecf9;
}

.c-off {
  color: #7b8794;
  border-color: var(--line);
  background: #f5f7fa;
}

.c-none {
  color: var(--muted);
  border-color: var(--line);
  border-style: dashed;
  background: #fff;
}

.card-foot {
  padding: 10px 12px 12px;
  border-top: 1px solid var(--line-soft);
}

/* ---------- Buttons ---------- */

.wide {
  width: 100%;
  border: 1px solid var(--line);
  background: #fff;
  border-radius: 3px;
  padding: 10px;
  font-size: 13px;
  font-weight: 600;
  color: var(--navy);
  cursor: pointer;
  font-family: inherit;
}

.wide:hover {
  background: #eaf1f8;
}

.primary {
  border: 0;
  background: var(--navy);
  color: #fff;
  border-radius: 3px;
  padding: 10px 16px;
  font-weight: 600;
  font-size: 14px;
  cursor: pointer;
  font-family: inherit;
}

.primary:hover {
  background: var(--navy-dark);
}

.primary:disabled {
  background: #a8b6c6;
  cursor: not-allowed;
}

.ghost {
  border: 1px solid var(--line);
  background: #fff;
  color: var(--muted);
  border-radius: 3px;
  padding: 10px 16px;
  font-weight: 600;
  font-size: 14px;
  cursor: pointer;
  font-family: inherit;
}

.ghost:hover {
  background: #f5f7fa;
}

.linkbtn {
  border: 0;
  background: none;
  color: var(--navy);
  font-size: 12.5px;
  font-weight: 600;
  cursor: pointer;
  font-family: inherit;
  padding: 0 12px 12px;
  text-decoration: underline;
}

.linkbtn.center {
  display: block;
  margin: 10px auto 0;
  padding: 0;
}

button:focus-visible,
input:focus-visible,
a:focus-visible {
  outline: 2px solid var(--navy);
  outline-offset: 2px;
}

/* ---------- Empty state ---------- */

.empty-state {
  padding: 8px 16px 20px;
  text-align: center;
}

.empty-state svg {
  max-width: 100%;
  height: auto;
}

.empty-title {
  margin: 8px 0 4px;
  font-weight: 700;
  font-size: 15px;
}

.empty-sub {
  margin: 0;
  color: var(--muted);
  font-size: 13px;
}

/* ---------- Team members ---------- */

.members {
  list-style: none;
  margin: 0;
  padding: 0;
}

.members li {
  display: flex;
  align-items: center;
  gap: 10px;
  border-top: 1px solid var(--line-soft);
  padding: 9px 12px;
}

.members .m-name {
  flex: 1;
  min-width: 0;
  font-weight: 600;
}

.members .m-name small {
  display: block;
  font-weight: 400;
  color: var(--muted);
  font-size: 11.5px;
}

.removebtn {
  border: 1px solid var(--line);
  background: #fff;
  color: var(--muted);
  border-radius: 3px;
  padding: 5px 9px;
  font-size: 11.5px;
  font-weight: 600;
  cursor: pointer;
  font-family: inherit;
  flex: none;
}

.removebtn.armed {
  border-color: #e8b4ae;
  background: var(--danger-soft);
  color: var(--danger);
}

/* ---------- Form ---------- */

.addform {
  border-top: 1px solid var(--line-soft);
  padding: 12px;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.field {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.field label {
  font-size: 12px;
  font-weight: 600;
  color: var(--muted);
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.field label .opt {
  text-transform: none;
  letter-spacing: 0;
  font-weight: 400;
}

.field input {
  border: 1px solid var(--line);
  border-radius: 3px;
  padding: 9px 10px;
  font-size: 15px;
  font-family: inherit;
  color: var(--ink);
  background: #fff;
  width: 100%;
}

.problem {
  margin: 0;
  color: var(--danger);
  font-size: 12.5px;
  font-weight: 600;
}

.hint {
  margin: 0;
  color: var(--muted);
  font-size: 12.5px;
}

/* ---------- How to use ---------- */

.how-to-list {
  margin: 0;
  padding: 0 14px 4px 30px;
  color: #3d4c5c;
  font-size: 13.5px;
  line-height: 1.7;
}

.how-to-list li {
  margin-bottom: 6px;
}

.how-to-note {
  margin: 4px 12px 14px;
  padding: 9px 10px;
  background: #f5f7fa;
  border-left: 3px solid var(--navy-soft);
  color: var(--muted);
  font-size: 12.5px;
}

/* ---------- Modal ---------- */

.modal-scrim[hidden] {
  display: none;
}

.modal-scrim {
  position: fixed;
  inset: 0;
  background: rgba(22, 32, 43, 0.55);
  display: flex;
  align-items: flex-end;
  justify-content: center;
  padding: 16px;
  z-index: 20;
}

.modal-card {
  background: #fff;
  border-radius: var(--radius);
  border: 1px solid var(--line);
  padding: 16px;
  width: 100%;
  max-width: 420px;
  max-height: 90vh;
  overflow-y: auto;
}

.modal-title {
  margin: 0;
  font-size: 17px;
  font-weight: 700;
}

.modal-date {
  margin: 2px 0 14px;
  font-size: 12.5px;
  color: var(--muted);
}

.type-group {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 6px;
}

.type-btn {
  border: 1px solid var(--line);
  background: #fff;
  border-radius: 3px;
  padding: 10px 6px;
  font-size: 13px;
  font-weight: 700;
  cursor: pointer;
  font-family: inherit;
  color: var(--muted);
}

.type-btn[aria-pressed="true"].t-morning {
  color: #1f6f4a;
  border-color: #1f6f4a;
  background: #eaf6f0;
}

.type-btn[aria-pressed="true"].t-day {
  color: var(--navy);
  border-color: var(--navy);
  background: #eaf1f8;
}

.type-btn[aria-pressed="true"].t-night {
  color: #5b3a88;
  border-color: #5b3a88;
  background: #f1ecf9;
}

.type-btn[aria-pressed="true"].t-off {
  color: #4b5563;
  border-color: #94a3b3;
  background: #f5f7fa;
}

.time-fields {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 10px;
  margin-top: 12px;
}

.time-fields input {
  border: 1px solid var(--line);
  border-radius: 3px;
  padding: 9px 10px;
  font-size: 15px;
  font-family: inherit;
  color: var(--ink);
  background: #fff;
  width: 100%;
}

.modal-actions {
  display: flex;
  gap: 8px;
  margin-top: 14px;
}

.modal-actions button {
  flex: 1;
}

/* ---------- Toast ---------- */

.toast {
  position: fixed;
  left: 50%;
  bottom: 18px;
  transform: translateX(-50%);
  background: var(--navy-dark);
  color: #fff;
  padding: 10px 16px;
  border-radius: 3px;
  font-size: 13px;
  font-weight: 600;
  z-index: 30;
  max-width: calc(100% - 32px);
  text-align: center;
}

/* ---------- Wider screens ---------- */

@media (min-width: 600px) {
  header {
    padding: 22px 24px 18px;
  }

  header h1 {
    font-size: 23px;
  }

  main {
    padding: 18px 24px 0;
  }

  .modal-scrim {
    align-items: center;
  }

  .type-group {
    grid-template-columns: repeat(4, 1fr);
  }

  .mday {
    min-height: 62px;
  }

  .mday .num {
    font-size: 13.5px;
  }

  .mday .dots {
    gap: 2px;
  }

  .mday .dot {
    width: 6px;
    height: 6px;
  }

  .addform {
    display: grid;
    grid-template-columns: 1fr 1fr auto;
    align-items: end;
    gap: 10px;
  }

  .addform .primary {
    height: 39px;
  }
}