:root {
  color-scheme: light;
  --page: #f7faff;
  --panel: rgba(255, 255, 255, 0.86);
  --panel-solid: #ffffff;
  --ink: #1f2937;
  --muted: #64748b;
  --faint: #94a3b8;
  --line: #dbeafe;
  --indigo: #4f39f6;
  --sky: #0084cc;
  --emerald: #009767;
  --rose: #e70044;
  --shadow: 0 1px 3px rgba(15, 23, 42, 0.1);
  font-family:
    "Yu Gothic UI", "Hiragino Kaku Gothic ProN", Meiryo, system-ui, -apple-system, BlinkMacSystemFont, sans-serif;
}

* {
  box-sizing: border-box;
}

html {
  min-height: 100%;
  background: var(--page);
}

body {
  min-height: 100%;
  margin: 0;
  color: var(--ink);
  background: linear-gradient(180deg, #f0f9ff 0%, #eef2ff 54%, #f5f3ff 100%);
  letter-spacing: 0;
}

button,
input {
  font: inherit;
}

button {
  -webkit-tap-highlight-color: transparent;
}

a {
  color: inherit;
  text-decoration: none;
}

.page-shell {
  min-height: 100dvh;
  padding: 16px;
}

.container {
  width: min(100%, 36rem);
  margin: 0 auto;
  padding-bottom: max(24px, env(safe-area-inset-bottom));
}

.container-narrow {
  width: min(100%, 28rem);
}

.topbar {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 12px;
  margin-bottom: 14px;
}

.nav-links {
  display: flex;
  flex-wrap: wrap;
  justify-content: flex-end;
  gap: 8px;
}

h1 {
  margin: 0;
  color: #1d293d;
  font-size: 1.5rem;
  line-height: 1.25;
  font-weight: 800;
  letter-spacing: 0;
}

.lead {
  margin: -8px 0 14px;
  color: var(--muted);
  font-size: 0.76rem;
}

.nav-pill,
.month-button {
  flex: 0 0 auto;
  border: 1px solid #e2e8f0;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.86);
  color: #45556c;
  box-shadow: var(--shadow);
  font-size: 0.86rem;
  font-weight: 700;
  white-space: nowrap;
}

.nav-pill {
  padding: 7px 12px;
}

.month-button {
  padding: 5px 12px;
  cursor: pointer;
}

.panel,
.summary-card,
.record-card,
.day-card {
  border: 1px solid var(--line);
  background: var(--panel);
  box-shadow: var(--shadow);
  backdrop-filter: blur(8px);
}

.panel {
  border-radius: 16px;
}

.input-panel {
  display: grid;
  gap: 12px;
  padding: 16px;
}

.field {
  display: grid;
  gap: 5px;
}

.field span {
  color: var(--muted);
  font-size: 0.76rem;
  font-weight: 700;
}

.field input {
  width: 100%;
  min-width: 0;
  border: 1px solid #e2e8f0;
  border-radius: 12px;
  background: var(--panel-solid);
  color: #1d293d;
  outline: 0;
  padding: 10px 12px;
  font-size: 1rem;
}

.field input:focus {
  border-color: #a4b3ff;
  box-shadow: 0 0 0 3px rgba(125, 135, 255, 0.24);
}

.field input::placeholder {
  color: #cad5e2;
}

.field-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px;
}

.field-grid.three {
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 8px;
}

.result-panel {
  display: grid;
  gap: 12px;
  margin-top: 16px;
  padding: 16px 20px;
}

.result-line {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
}

.result-line span {
  color: var(--muted);
  font-size: 0.9rem;
}

.result-line small {
  color: var(--faint);
  font-size: 0.68rem;
}

.result-line strong {
  flex: 0 1 auto;
  min-width: 0;
  text-align: right;
  font-size: 1.5rem;
  line-height: 1.15;
  font-weight: 800;
  overflow-wrap: anywhere;
}

.result-line.compact strong {
  font-size: 1.28rem;
}

.break-even-box {
  display: grid;
  gap: 5px;
  border-top: 1px solid #eef2ff;
  padding-top: 12px;
}

.break-even-box p {
  margin: 0;
  color: var(--faint);
  font-size: 0.76rem;
  text-align: right;
}

.break-even-value {
  color: var(--indigo);
}

.profit-plus {
  color: var(--emerald);
}

.profit-minus {
  color: var(--rose);
}

.muted-value {
  color: var(--faint);
  font-weight: 600 !important;
  font-size: 0.86rem !important;
}

.primary-button,
.secondary-button {
  width: 100%;
  border: 0;
  cursor: pointer;
  transition:
    transform 0.15s ease,
    background-color 0.15s ease;
}

.primary-button {
  margin-top: 12px;
  padding: 13px 14px;
  border-radius: 16px;
  background: var(--indigo);
  color: #ffffff;
  font-weight: 800;
  box-shadow: var(--shadow);
}

.primary-button:disabled {
  cursor: not-allowed;
  background: #cad5e2;
}

.primary-button:not(:disabled):active {
  transform: scale(0.99);
}

.secondary-button {
  margin-top: 8px;
  padding: 11px 14px;
  border: 1px solid #e2e8f0;
  border-radius: 12px;
  background: rgba(255, 255, 255, 0.7);
  color: #62748e;
  font-size: 0.86rem;
  font-weight: 700;
}

.edit-banner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  margin-bottom: 8px;
  border: 1px solid #fee685;
  border-radius: 12px;
  background: #fffbeb;
  color: #b75000;
  padding: 9px 12px;
  font-size: 0.86rem;
}

.edit-banner button {
  border: 0;
  background: transparent;
  color: inherit;
  cursor: pointer;
  font-size: 0.78rem;
  font-weight: 800;
  text-decoration: underline;
}

.today-section {
  margin-top: 24px;
}

.today-section h2,
.section-title {
  margin: 0 0 10px;
  color: #314158;
  font-size: 0.9rem;
  font-weight: 800;
}

.empty-text {
  margin: 0;
  padding-inline: 4px;
  color: var(--faint);
  font-size: 0.78rem;
}

.summary-card {
  display: grid;
  gap: 8px;
  margin-bottom: 12px;
  border-radius: 16px;
  padding: 12px 16px;
}

.summary-card div {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
}

.summary-card div + div {
  border-top: 1px solid #eef2ff;
  padding-top: 8px;
}

.summary-card span {
  color: var(--muted);
  font-size: 0.86rem;
}

.summary-card strong {
  font-variant-numeric: tabular-nums;
}

.record-list,
.day-list {
  display: grid;
  gap: 10px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.record-card {
  border-radius: 12px;
  padding: 12px 14px;
  background: rgba(255, 255, 255, 0.82);
}

.record-main {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 10px;
}

.record-text {
  min-width: 0;
}

.record-name {
  color: #1d293d;
  font-weight: 800;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.record-detail {
  margin-top: 3px;
  color: var(--faint);
  font-size: 0.7rem;
}

.record-result {
  flex: 0 0 auto;
  text-align: right;
}

.record-result strong {
  display: block;
  font-weight: 850;
  font-variant-numeric: tabular-nums;
}

.record-actions,
.form-actions {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: 8px;
  margin-top: 8px;
}

.mini-button {
  border: 1px solid #e0e7ff;
  border-radius: 999px;
  background: #eef2ff;
  color: #4f39f6;
  cursor: pointer;
  padding: 5px 11px;
  font-size: 0.72rem;
  font-weight: 800;
}

.mini-button.ghost {
  border-color: #e2e8f0;
  background: #f8fafc;
  color: #90a1b9;
}

.mini-button.strong {
  background: var(--indigo);
  color: #ffffff;
}

.privacy-note {
  margin: 24px 0 0;
  color: var(--faint);
  font-size: 0.68rem;
  text-align: center;
}

.backup-panel {
  display: grid;
  gap: 10px;
  margin-top: 24px;
  border: 1px solid var(--line);
  border-radius: 16px;
  background: var(--panel);
  box-shadow: var(--shadow);
  padding: 14px;
}

.backup-panel h2 {
  margin: 0;
  color: #314158;
  font-size: 0.92rem;
}

.backup-panel p {
  margin: 0;
  color: var(--muted);
  font-size: 0.72rem;
  line-height: 1.65;
}

.backup-actions {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 8px;
}

.backup-actions button,
.backup-actions label,
.csv-button {
  display: grid;
  min-height: 42px;
  place-items: center;
  border: 1px solid #bfdbfe;
  border-radius: 12px;
  background: #ffffff;
  color: var(--sky);
  cursor: pointer;
  font-weight: 850;
}

.backup-actions label {
  position: relative;
  overflow: hidden;
}

.backup-actions input {
  position: absolute;
  inset: 0;
  opacity: 0;
  cursor: pointer;
}

.csv-button {
  width: 100%;
  color: var(--indigo);
}

.calendar-shell {
  min-height: 100dvh;
  padding: 0 16px 18px;
}

.calendar-sticky {
  position: sticky;
  top: 0;
  z-index: 2;
  margin: 0 -16px 16px;
  padding: 16px 16px 10px;
  border-bottom: 1px solid rgba(219, 234, 254, 0.7);
  background: rgba(240, 249, 255, 0.94);
  backdrop-filter: blur(10px);
}

.month-nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  margin-bottom: 8px;
}

.month-title {
  color: #1d293d;
  font-weight: 850;
}

.calendar-card {
  border: 1px solid var(--line);
  border-radius: 12px;
  background: var(--panel);
  box-shadow: var(--shadow);
  padding: 6px;
}

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

.weekday-row span {
  padding-bottom: 4px;
  color: var(--faint);
  font-size: 0.65rem;
  font-weight: 800;
  text-align: center;
}

.weekday-row span:first-child,
.sunday .day-number,
.day-card.sunday .day-header span {
  color: var(--rose);
}

.weekday-row span:last-child,
.saturday .day-number,
.day-card.saturday .day-header span {
  color: var(--sky);
}

.calendar-grid {
  gap: 2px;
}

.calendar-day {
  display: flex;
  min-height: 58px;
  flex-direction: column;
  align-items: center;
  border: 1px solid #f1f5f9;
  border-radius: 6px;
  background: rgba(255, 255, 255, 0.42);
  padding: 5px 2px;
  color: inherit;
  text-align: center;
}

button.calendar-day {
  cursor: pointer;
}

.calendar-day.today {
  border-color: #77d4ff;
  background: rgba(240, 249, 255, 0.78);
}

.calendar-day.selected {
  border-color: #7d87ff;
  background: rgba(238, 242, 255, 0.9);
  box-shadow: inset 0 0 0 1px #a4b3ff;
}

.calendar-day.has-record {
  border-color: #a4f4cf;
  background: rgba(236, 253, 245, 0.62);
}

.day-number {
  color: #62748e;
  font-size: 0.82rem;
  font-weight: 850;
  line-height: 1;
}

.calendar-day.today .day-number {
  color: var(--sky);
}

.mini-total {
  display: block;
  width: 100%;
  margin-top: 3px;
  overflow: hidden;
  text-overflow: ellipsis;
  color: var(--sky);
  font-size: 0.62rem;
  font-weight: 850;
  line-height: 1;
  white-space: nowrap;
}

.mini-total.profit-minus,
.mini-total.profit-plus {
  color: inherit;
}

.legend {
  display: flex;
  justify-content: center;
  gap: 14px;
  margin-top: 6px;
  color: var(--muted);
  font-size: 0.65rem;
}

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

.dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--sky);
}

.dot.profit {
  background: var(--emerald);
}

.month-summary {
  display: grid;
  gap: 8px;
  margin: 16px 0;
  border: 1px solid var(--line);
  border-radius: 16px;
  background: var(--panel-solid);
  box-shadow: var(--shadow);
  padding: 12px 18px;
}

.month-summary div {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
}

.month-summary div + div {
  border-top: 1px solid #eef2ff;
  padding-top: 8px;
}

.month-summary span {
  color: var(--muted);
  font-size: 0.86rem;
}

.month-summary strong {
  font-variant-numeric: tabular-nums;
}

.day-card {
  scroll-margin-top: 280px;
  overflow: hidden;
  border-radius: 16px;
  background: rgba(255, 255, 255, 0.62);
}

.day-card.has-record {
  background: var(--panel-solid);
}

.day-card.today {
  border-color: #77d4ff;
}

.day-card.selected {
  border-color: #a4b3ff;
  box-shadow:
    0 0 0 2px rgba(164, 179, 255, 0.32),
    var(--shadow);
}

.day-header {
  display: flex;
  width: 100%;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
  border: 0;
  background: transparent;
  color: inherit;
  cursor: pointer;
  padding: 12px 14px;
  text-align: left;
}

.day-header.static {
  cursor: default;
}

.day-header span {
  color: #314158;
  font-size: 0.9rem;
  font-weight: 850;
}

.day-header small {
  color: var(--faint);
  font-size: 0.72rem;
}

.today-badge {
  display: inline-block;
  margin-left: 8px;
  border-radius: 999px;
  background: #dff2fe;
  color: var(--sky);
  padding: 2px 6px;
  font-size: 0.64rem;
}

.day-totals {
  display: flex;
  gap: 22px;
  padding: 0 14px 12px;
}

.day-totals span {
  display: block;
  color: var(--faint);
  font-size: 0.7rem;
}

.day-totals strong {
  font-size: 1.2rem;
  font-weight: 850;
  font-variant-numeric: tabular-nums;
}

.day-records {
  display: grid;
  gap: 8px;
  border-top: 1px solid #eef2ff;
  padding: 10px;
}

.day-records .record-card {
  background: #f8fafc;
  box-shadow: none;
}

.edit-card {
  display: grid;
  gap: 8px;
}

.small-field input {
  border-radius: 9px;
  padding: 8px 10px;
  font-size: 0.9rem;
}

.small-field span {
  font-size: 0.68rem;
}

[hidden] {
  display: none !important;
}

@media (max-width: 360px) {
  .page-shell,
  .calendar-shell {
    padding-inline: 12px;
  }

  .topbar {
    align-items: stretch;
    flex-direction: column;
  }

  .nav-pill {
    align-self: flex-start;
  }

  .nav-links {
    justify-content: flex-start;
  }

  .field-grid.three {
    grid-template-columns: 1fr;
  }

  .result-line {
    align-items: flex-start;
    flex-direction: column;
  }

  .result-line strong,
  .break-even-box p {
    text-align: left;
  }
}

@media (prefers-color-scheme: dark) {
  :root {
    color-scheme: dark;
    --page: #0f172b;
    --panel: rgba(29, 41, 61, 0.82);
    --panel-solid: #1d293d;
    --ink: #f1f5f9;
    --muted: #cad5e2;
    --faint: #90a1b9;
    --line: #314158;
    --shadow: 0 1px 3px rgba(0, 0, 0, 0.28);
  }

  body {
    background: linear-gradient(180deg, #0f172b 0%, #1e1a4d 54%, #0f172b 100%);
  }

  h1,
  .month-title,
  .record-name {
    color: #f1f5f9;
  }

  .calendar-sticky {
    border-bottom-color: rgba(49, 65, 88, 0.72);
    background: rgba(15, 23, 43, 0.94);
  }

  .nav-pill,
  .month-button,
  .field input,
  .secondary-button,
  .month-summary {
    border-color: #314158;
    background: rgba(29, 41, 61, 0.88);
    color: #cad5e2;
  }

  .field input {
    color: #f1f5f9;
  }

  .field input::placeholder {
    color: #62748e;
  }

  .edit-banner {
    border-color: #953d00;
    background: rgba(70, 25, 1, 0.45);
    color: #ffd236;
  }

  .backup-panel h2 {
    color: #e2e8f0;
  }

  .backup-actions button,
  .backup-actions label,
  .csv-button {
    border-color: #314158;
    background: rgba(29, 41, 61, 0.88);
  }

  .break-even-box,
  .summary-card div + div,
  .month-summary div + div,
  .day-records {
    border-color: #314158;
  }

  .record-card,
  .day-records .record-card {
    background: rgba(15, 23, 43, 0.5);
  }

  .day-card {
    background: rgba(29, 41, 61, 0.52);
  }

  .day-card.has-record {
    background: rgba(29, 41, 61, 0.86);
  }

  .calendar-day {
    border-color: rgba(49, 65, 88, 0.78);
    background: rgba(15, 23, 43, 0.32);
  }

  .calendar-day.has-record {
    border-color: #005f46;
    background: rgba(0, 95, 70, 0.22);
  }

  .calendar-day.today {
    border-color: #00a5ef;
    background: rgba(5, 47, 74, 0.36);
  }

  .calendar-day.selected {
    border-color: #7d87ff;
    background: rgba(30, 26, 77, 0.72);
  }

  .day-header span,
  .today-section h2,
  .section-title {
    color: #e2e8f0;
  }

  .mini-button.ghost {
    border-color: #314158;
    background: rgba(49, 65, 88, 0.62);
    color: #90a1b9;
  }
}