/* 月間カレンダーのレイアウトとレスポンシブ表示 */
:root {
  --brand: #93d9d7;
  --brand-hover: #7bc9c6;
  --brand-deep: #174b63;
  --brand-soft: #e5f7f6;
  --ink: #173b4b;
  --muted: #61757d;
  --green: var(--brand);
  --green-deep: var(--brand-deep);
  --green-soft: var(--brand-soft);
  --paper: #ffffff;
  --line: #d6e5e7;
  --sunday: #c75b54;
  --saturday: #3e6da0;
}

* {
  box-sizing: border-box;
}

html {
  min-width: 320px;
  background: #eaf5f6;
}

body {
  min-height: 100vh;
  margin: 0;
  color: var(--ink);
  background: #eaf5f6;
  font-family:
    "Yu Gothic UI", "Hiragino Sans", "Noto Sans JP", system-ui, sans-serif;
}

button {
  font: inherit;
}

input,
textarea {
  font: inherit;
}

.app-background {
  min-height: 100vh;
  padding: clamp(16px, 4vw, 56px);
  background:
    radial-gradient(circle at 12% 8%, rgba(255, 255, 255, 0.92), transparent 31%),
    linear-gradient(145deg, #f8fcfc 0%, #deeff1 100%);
}

.calendar-app {
  width: min(100%, 1120px);
  margin: 0 auto;
}

.app-header {
  display: flex;
  align-items: center;
  gap: 12px;
  margin: 0 0 18px;
}

.brand-mark {
  display: block;
  width: 48px;
  height: 48px;
  border-radius: 14px;
  box-shadow: 0 8px 20px rgba(23, 75, 99, 0.2);
}

.eyebrow,
.app-name,
.section-label,
.calendar-toolbar h1 {
  margin: 0;
}

.eyebrow {
  color: var(--green-deep);
  font-size: 0.66rem;
  font-weight: 800;
  letter-spacing: 0.16em;
}

.app-name {
  margin-top: 1px;
  font-size: 1.05rem;
  font-weight: 750;
  letter-spacing: 0.02em;
}

.calendar-card {
  overflow: hidden;
  border: 1px solid rgba(23, 75, 99, 0.1);
  border-radius: 26px;
  background: var(--paper);
  box-shadow:
    0 20px 55px rgba(23, 75, 99, 0.1),
    0 2px 6px rgba(23, 75, 99, 0.05);
}

.calendar-toolbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  padding: 28px 30px 22px;
  border-bottom: 1px solid var(--line);
}

.section-label {
  margin-bottom: 4px;
  color: var(--muted);
  font-size: 0.76rem;
  font-weight: 700;
  letter-spacing: 0.08em;
}

.calendar-toolbar h1 {
  font-size: clamp(1.65rem, 4vw, 2.25rem);
  line-height: 1.2;
  letter-spacing: -0.035em;
}

.calendar-actions {
  display: flex;
  align-items: center;
  gap: 8px;
}

.icon-button,
.today-button {
  min-height: 46px;
  border: 1px solid var(--line);
  color: var(--ink);
  background: #fff;
  cursor: pointer;
  transition:
    transform 150ms ease,
    border-color 150ms ease,
    background 150ms ease;
}

.icon-button {
  display: grid;
  width: 46px;
  padding: 0;
  place-items: center;
  border-radius: 50%;
  font-size: 1.7rem;
  line-height: 1;
}

.today-button {
  min-width: 68px;
  padding: 0 16px;
  border-color: var(--green);
  border-radius: 999px;
  color: var(--green-deep);
  background: var(--green);
  font-size: 0.88rem;
  font-weight: 750;
}

.icon-button:hover,
.icon-button:focus-visible {
  border-color: var(--green);
  background: var(--green-soft);
}

.today-button:hover,
.today-button:focus-visible {
  background: var(--brand-hover);
}

.icon-button:active,
.today-button:active {
  transform: scale(0.96);
}

.icon-button:focus-visible,
.today-button:focus-visible {
  outline: 3px solid rgba(23, 75, 99, 0.24);
  outline-offset: 2px;
}

.weekday-row,
.calendar-grid {
  display: grid;
  grid-template-columns: repeat(7, minmax(0, 1fr));
}

.weekday-row {
  padding: 0 18px;
  border-bottom: 1px solid var(--line);
  background: #fafcfb;
}

.weekday {
  padding: 13px 4px;
  color: var(--muted);
  font-size: 1rem;
  font-weight: 750;
  text-align: center;
}

.sunday {
  color: var(--sunday);
}

.saturday {
  color: var(--saturday);
}

.calendar-grid {
  padding: 0 18px 18px;
}

.calendar-cell {
  position: relative;
  min-width: 0;
  min-height: clamp(74px, 10vw, 116px);
  border-right: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  background: #fff;
}

.calendar-cell:nth-child(7n + 1) {
  border-left: 1px solid var(--line);
}

.calendar-day {
  position: relative;
  display: block;
  width: 100%;
  min-height: inherit;
  padding: 13px;
  border: 0;
  color: inherit;
  background: transparent;
  text-align: left;
  cursor: pointer;
}

.calendar-day:hover {
  background: rgba(147, 217, 215, 0.2);
}

.calendar-day:focus-visible {
  z-index: 3;
  outline: 3px solid rgba(23, 75, 99, 0.42);
  outline-offset: -3px;
}

.calendar-day time {
  position: absolute;
  top: 12px;
  left: 12px;
  z-index: 1;
  display: grid;
  width: 31px;
  height: 31px;
  place-items: center;
  border-radius: 50%;
  color: currentColor;
  font-size: 1.1rem;
  font-weight: 700;
}

.calendar-cell.outside-month {
  color: #aeb9b5;
  background: #fafbf9;
}

.calendar-cell.today {
  background: linear-gradient(145deg, #f4fbfb, #e2f5f4);
}

.calendar-cell.today::after {
  position: absolute;
  inset: 5px;
  border: 2px solid rgba(23, 75, 99, 0.32);
  border-radius: 13px;
  content: "";
  pointer-events: none;
}

.calendar-cell.today time {
  color: var(--green-deep);
  background: var(--green);
}

.calendar-cell.selected {
  z-index: 1;
  box-shadow: inset 0 0 0 3px var(--green);
}

.calendar-work-time {
  position: absolute;
  bottom: 12px;
  left: 13px;
  padding: 3px 7px;
  border-radius: 999px;
  color: var(--green-deep);
  background: var(--green-soft);
  font-size: 0.7rem;
  font-weight: 800;
}

.today-label {
  position: absolute;
  right: 12px;
  bottom: 10px;
  z-index: 1;
  color: var(--green-deep);
  font-size: 0.68rem;
  font-weight: 800;
  letter-spacing: 0.08em;
}

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

.shift-modal {
  position: fixed;
  inset: 0;
  z-index: 100;
  display: grid;
  place-items: center;
  padding: 20px;
}

.shift-modal-backdrop {
  position: absolute;
  inset: 0;
  background: rgba(42, 48, 46, 0.58);
  cursor: pointer;
}

.day-panel {
  position: relative;
  z-index: 1;
  width: min(100%, 1120px);
  max-height: calc(100vh - 40px);
  margin: 0;
  overflow-y: auto;
  border: 1px solid rgba(23, 75, 99, 0.1);
  border-radius: 26px;
  background: var(--paper);
  box-shadow: 0 14px 40px rgba(23, 75, 99, 0.1);
}

.day-panel-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  padding: 24px 30px;
  border-bottom: 1px solid var(--line);
}

.day-panel-header h2,
.shift-form h3,
.shift-list-header h3,
.shift-item h4,
.shift-item p,
.shift-details,
.form-message,
.empty-shift-message {
  margin: 0;
}

.day-panel-header h2 {
  font-size: clamp(1.25rem, 3vw, 1.65rem);
}

.day-panel-date {
  min-width: 0;
}

.selected-period-summary {
  display: flex;
  flex-wrap: wrap;
  gap: 7px 18px;
  margin: 11px 0 0;
}

.selected-period-summary div {
  display: flex;
  gap: 6px;
  font-size: 0.74rem;
}

.selected-period-summary dt {
  color: var(--muted);
}

.selected-period-summary dd {
  margin: 0;
  font-weight: 750;
}

.shift-count-summary {
  min-width: 74px;
  margin: 0;
  padding: 8px 12px;
  border-radius: 999px;
  color: var(--green-deep);
  background: var(--green-soft);
  font-size: 0.82rem;
  font-weight: 800;
  text-align: center;
}

.day-panel-actions {
  display: flex;
  align-items: center;
  flex-shrink: 0;
  gap: 10px;
}

.shift-close-button {
  position: relative;
  width: 42px;
  min-height: 42px;
  padding: 0;
  border: 1px solid var(--line);
  border-radius: 50%;
  color: var(--ink);
  background: var(--paper);
}

.shift-close-button::before,
.shift-close-button::after {
  position: absolute;
  top: 50%;
  left: 50%;
  width: 16px;
  height: 2px;
  border-radius: 999px;
  background: currentColor;
  content: "";
}

.shift-close-button::before {
  transform: translate(-50%, -50%) rotate(45deg);
}

.shift-close-button::after {
  transform: translate(-50%, -50%) rotate(-45deg);
}

.shift-close-button:hover {
  border-color: var(--green);
  background: var(--green-soft);
}

.day-panel-content {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
}

.shift-form,
.shift-list-section {
  min-width: 0;
  padding: 28px 30px 30px;
}

.shift-form {
  border-right: 1px solid var(--line);
}

.shift-form h3,
.shift-list-header h3 {
  font-size: 1rem;
}

.shift-form fieldset {
  min-width: 0;
  margin: 18px 0 0;
  padding: 0;
  border: 0;
}

.form-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 15px;
}

.form-field {
  display: grid;
  gap: 7px;
  min-width: 0;
  color: var(--ink);
  font-size: 0.8rem;
  font-weight: 750;
}

.form-field-wide {
  grid-column: 1 / -1;
}

.required-marker {
  margin-left: 4px;
  color: var(--sunday);
  font-size: 0.68rem;
}

.form-hint {
  margin: -7px 0 0;
  color: var(--muted);
  font-size: 0.7rem;
  line-height: 1.5;
}

.wage-note {
  color: var(--muted);
  font-size: 0.7rem;
  font-weight: 400;
  line-height: 1.5;
}

.form-field input,
.form-field textarea {
  width: 100%;
  min-height: 46px;
  padding: 10px 12px;
  border: 1px solid #cbd8d2;
  border-radius: 10px;
  color: var(--ink);
  background: #fff;
}

.form-field textarea {
  min-height: 82px;
  resize: vertical;
}

.form-field input:focus,
.form-field textarea:focus {
  border-color: var(--green);
  outline: 3px solid rgba(23, 75, 99, 0.16);
}

.save-shift-button {
  width: 100%;
  min-height: 48px;
  margin-top: 18px;
  border: 0;
  border-radius: 12px;
  color: var(--green-deep);
  background: var(--green);
  font-weight: 800;
  cursor: pointer;
}

.save-shift-button:hover,
.save-shift-button:focus-visible {
  background: var(--brand-hover);
}

.save-shift-button:focus-visible {
  outline: 3px solid rgba(23, 75, 99, 0.24);
  outline-offset: 2px;
}

.shift-form fieldset:disabled {
  opacity: 0.55;
}

.shift-form fieldset:disabled .save-shift-button {
  cursor: not-allowed;
}

.form-message {
  margin-top: 13px;
  padding: 10px 12px;
  border-radius: 9px;
  font-size: 0.78rem;
  font-weight: 700;
}

.form-message.success {
  color: var(--green-deep);
  background: var(--green-soft);
}

.form-message.error {
  color: #8b2822;
  background: #fde9e7;
}

.shift-list-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  margin-bottom: 18px;
}

.shift-list-header span {
  color: var(--muted);
  font-size: 0.72rem;
  font-weight: 700;
}

.shift-list {
  display: grid;
  gap: 10px;
}

.shift-item {
  padding: 15px 16px;
  border: 1px solid var(--line);
  border-left: 4px solid var(--green);
  border-radius: 12px;
  background: #fff;
}

.shift-item-header {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 12px;
}

.shift-item h4 {
  overflow-wrap: anywhere;
  font-size: 0.95rem;
}

.shift-item-header p {
  flex: 0 0 auto;
  color: var(--green-deep);
  font-size: 0.88rem;
  font-weight: 800;
}

.shift-details {
  display: flex;
  gap: 18px;
  margin-top: 10px;
}

.shift-details div {
  display: flex;
  gap: 6px;
  font-size: 0.76rem;
}

.shift-details dt {
  color: var(--muted);
}

.shift-details dd {
  margin: 0;
  font-weight: 700;
}

.empty-shift-message {
  padding: 24px 14px;
  border: 1px dashed #cbd8d2;
  border-radius: 12px;
  color: var(--muted);
  font-size: 0.82rem;
  text-align: center;
}

.app-footer {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 16px 12px 0;
  color: var(--muted);
  font-size: 0.76rem;
}

.status-dot {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--green);
  box-shadow: 0 0 0 4px rgba(23, 75, 99, 0.12);
}

.noscript-message {
  padding: 12px;
  border-radius: 10px;
  color: #8b2822;
  background: #fde9e7;
  text-align: center;
}

@media (max-width: 640px) {
  .app-background {
    padding: 14px 10px 24px;
  }

  .app-header {
    margin-left: 5px;
  }

  .calendar-card {
    border-radius: 20px;
  }

  .calendar-toolbar {
    align-items: flex-end;
    padding: 20px 16px 16px;
  }

  .section-label {
    font-size: 0.68rem;
  }

  .calendar-toolbar h1 {
    white-space: nowrap;
  }

  .calendar-actions {
    gap: 5px;
  }

  .icon-button {
    width: 44px;
    min-height: 44px;
  }

  .today-button {
    min-width: 56px;
    min-height: 44px;
    padding: 0 11px;
  }

  .weekday-row {
    padding: 0 6px;
  }

  .weekday {
    padding: 11px 2px;
  }

  .calendar-grid {
    padding: 0 6px 10px;
  }

  .calendar-cell {
    min-height: 62px;
  }

  .calendar-day {
    padding: 7px 4px;
  }

  .calendar-day time {
    top: 4px;
    left: 4px;
    width: 28px;
    height: 28px;
    font-size: 1rem;
  }

  .calendar-cell.today::after {
    inset: 3px;
    border-radius: 9px;
  }

  .calendar-work-time {
    right: 2px;
    bottom: 4px;
    left: 2px;
    padding: 2px 3px;
    text-align: center;
    font-size: 0.58rem;
  }

  .today-label {
    right: 0;
    bottom: 5px;
    left: 0;
    text-align: center;
    font-size: 0.58rem;
  }

  .shift-modal {
    padding: 10px;
  }

  .day-panel {
    max-height: calc(100vh - 20px);
    border-radius: 20px;
  }

  .day-panel-header {
    padding: 20px 16px;
  }

  .day-panel-content {
    grid-template-columns: 1fr;
  }

  .shift-form,
  .shift-list-section {
    padding: 22px 16px 24px;
  }

  .shift-form {
    border-right: 0;
    border-bottom: 1px solid var(--line);
  }
}

@media (max-width: 390px) {
  .calendar-toolbar {
    align-items: stretch;
    flex-direction: column;
    gap: 14px;
  }

  .calendar-actions {
    justify-content: space-between;
  }

  .today-button {
    flex: 1;
  }

  .form-grid {
    grid-template-columns: 1fr;
  }

  .form-field-wide {
    grid-column: auto;
  }
}

.form-actions {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 10px;
}

.cancel-edit-button {
  min-height: 48px;
  margin-top: 18px;
  padding: 0 18px;
  border: 1px solid #b9c8c1;
  border-radius: 12px;
  color: var(--ink);
  background: #fff;
  font-weight: 750;
  cursor: pointer;
}

.cancel-edit-button:hover,
.cancel-edit-button:focus-visible {
  border-color: var(--green);
  background: var(--green-soft);
}

.cancel-edit-button:focus-visible {
  outline: 3px solid rgba(23, 75, 99, 0.24);
  outline-offset: 2px;
}

.shift-item.editing {
  border-color: var(--green);
  background: var(--green-soft);
  box-shadow: inset 0 0 0 1px var(--green);
}

.shift-item-actions {
  display: flex;
  justify-content: flex-end;
  gap: 8px;
  margin-top: 12px;
  padding-top: 12px;
  border-top: 1px solid var(--line);
}

.edit-shift-button,
.delete-shift-button {
  min-height: 40px;
  padding: 0 14px;
  border-radius: 9px;
  background: #fff;
  font-size: 0.76rem;
  font-weight: 750;
  cursor: pointer;
}

.edit-shift-button {
  border: 1px solid var(--green);
  color: var(--green-deep);
}

.delete-shift-button {
  border: 1px solid #d98982;
  color: #9c2e27;
}

.edit-shift-button:hover,
.edit-shift-button:focus-visible {
  background: var(--green-soft);
}

.delete-shift-button:hover,
.delete-shift-button:focus-visible {
  background: #fff0ee;
}

.edit-shift-button:focus-visible,
.delete-shift-button:focus-visible {
  outline: 3px solid rgba(23, 75, 99, 0.2);
  outline-offset: 2px;
}

.calendar-cell.daily-limit-warning,
.calendar-cell.weekly-28-limit-warning,
.calendar-cell.weekly-40-limit-warning {
  color: #9c2e27;
  background: #fff0ee;
}

.calendar-cell.daily-limit-warning.selected,
.calendar-cell.weekly-28-limit-warning.selected,
.calendar-cell.weekly-40-limit-warning.selected {
  box-shadow: inset 0 0 0 3px #b63d34;
}

.work-limit-warning-icon {
  position: absolute;
  top: 12px;
  right: 12px;
  z-index: 2;
  display: grid;
  width: 23px;
  height: 23px;
  place-items: center;
  border-radius: 50%;
  color: #fff;
  background: #b63d34;
  font-size: 0.66rem;
  font-weight: 900;
}

.weekly-warning {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 14px;
  padding: 18px 30px;
  border-bottom: 1px solid #f0c7c3;
  color: #76241f;
  background: #fff0ee;
}

.weekly-warning[hidden] {
  display: none;
}

.weekly-warning-mark {
  display: grid;
  width: 34px;
  height: 34px;
  place-items: center;
  border-radius: 50%;
  color: #fff;
  background: #b63d34;
  font-size: 1rem;
  font-weight: 900;
}

.weekly-warning h3,
.weekly-warning-details {
  margin: 0;
}

.weekly-warning h3 {
  font-size: 0.92rem;
}

.weekly-warning-details {
  display: flex;
  flex-wrap: wrap;
  gap: 9px 20px;
  margin-top: 10px;
}

.weekly-warning-details div {
  display: flex;
  gap: 6px;
  font-size: 0.76rem;
}

.weekly-warning-details dt {
  color: #9b5b56;
}

.weekly-warning-details dd {
  margin: 0;
  font-weight: 800;
}

@media (max-width: 640px) {
  .form-actions {
    grid-template-columns: 1fr;
    gap: 0;
  }

  .work-limit-warning-icon {
    top: 4px;
    right: 4px;
    width: 19px;
    height: 19px;
    font-size: 0.66rem;
  }

  .weekly-warning {
    padding: 16px;
  }

  .weekly-warning-details {
    display: grid;
    gap: 6px;
  }

  .shift-details {
    flex-wrap: wrap;
  }
}

@media (prefers-reduced-motion: reduce) {
  .icon-button,
  .today-button {
    transition: none;
  }
}