:root {
  color-scheme: light;
  --paper: #fffaf2;
  --surface: #ffffff;
  --ink: #2d2922;
  --muted: #746b5c;
  --line: #ded4c2;
  --accent: #2f6b4f;
  --accent-dark: #24533d;
  --gold: #c58a2b;
  --danger: #9a3d32;
  --disabled: #eee7dc;
  font-family: -apple-system, BlinkMacSystemFont, "Hiragino Sans", "Yu Gothic", "Noto Sans JP", sans-serif;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  background: linear-gradient(180deg, #f6efe3 0%, var(--paper) 55%, #f3eadc 100%);
  color: var(--ink);
}

button,
input {
  font: inherit;
}

.page-shell {
  width: min(100%, 920px);
  min-height: 100svh;
  margin: 0 auto;
  padding: 28px 16px 40px;
}

.site-header {
  padding: 10px 0 18px;
}

.site-header.compact {
  padding-bottom: 8px;
}

.eyebrow {
  margin: 0 0 8px;
  color: var(--accent);
  font-size: 1.05rem;
  font-weight: 700;
}

h1,
h2,
p {
  margin-top: 0;
}

h1 {
  margin-bottom: 10px;
  font-size: clamp(1.35rem, 4.5vw, 1.9rem);
  line-height: 1.1;
  letter-spacing: 0;
}

h2 {
  margin: 0;
  min-width: 9em;
  text-align: center;
  font-size: 1.25rem;
}

.lead {
  max-width: 39rem;
  margin-bottom: 0;
  color: var(--muted);
  line-height: 1.8;
}

.notice {
  border-block: 1px solid var(--line);
  padding: 14px 0;
  color: #554d40;
  line-height: 1.75;
}

.notice p {
  margin: 0;
}

.calendar-panel {
  padding: 18px 0 8px;
}

.month-toolbar {
  display: grid;
  grid-template-columns: 44px 1fr 44px;
  align-items: center;
  gap: 10px;
  margin-bottom: 14px;
}

.icon-button,
.secondary-button,
.primary-button,
.primary-link {
  min-height: 44px;
  border: 0;
  border-radius: 8px;
  cursor: pointer;
  text-decoration: none;
}

.icon-button {
  width: 44px;
  background: var(--surface);
  color: var(--accent);
  border: 1px solid var(--line);
  font-size: 1.8rem;
  line-height: 1;
}

.icon-button:disabled {
  cursor: not-allowed;
  color: #b5aa99;
  background: var(--disabled);
}

.weekday-grid,
.calendar-grid {
  display: grid;
  grid-template-columns: repeat(7, minmax(0, 1fr));
  gap: 4px;
}

.weekday-grid {
  margin-bottom: 6px;
  color: var(--muted);
  font-size: 0.84rem;
  font-weight: 700;
  text-align: center;
}

.calendar-cell {
  display: flex;
  min-width: 0;
  aspect-ratio: 1 / 1.08;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 4px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.8);
  color: var(--ink);
  text-align: center;
}

.calendar-cell.blank {
  border-color: transparent;
  background: transparent;
}

.calendar-cell.past {
  color: #aaa093;
  background: rgba(238, 231, 220, 0.65);
}

.calendar-cell.selected {
  border-color: var(--accent);
  box-shadow: inset 0 0 0 2px var(--accent);
}

.calendar-grid.editable .calendar-cell:not(.blank) {
  cursor: pointer;
}

.date-number {
  font-weight: 700;
}

.status {
  max-width: 100%;
  padding: 0 2px;
  font-size: clamp(0.64rem, 2.5vw, 0.86rem);
  line-height: 1.25;
  overflow-wrap: anywhere;
}

.status-available,
.mark.available {
  color: var(--accent);
}

.status-waiting,
.mark.waiting {
  color: var(--gold);
}

.status-unavailable,
.mark.unavailable {
  color: var(--danger);
}

.legend {
  display: flex;
  flex-wrap: wrap;
  gap: 10px 16px;
  padding: 10px 0 18px;
  color: var(--muted);
}

.mark {
  font-size: 1.2em;
}

.primary-link,
.primary-button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 100%;
  margin-top: 20px;
  padding: 0 18px;
  background: var(--accent);
  color: #fff;
  font-weight: 700;
}

.primary-link:hover,
.primary-button:hover {
  background: var(--accent-dark);
}

.secondary-button {
  padding: 0 14px;
  background: var(--surface);
  color: var(--accent);
  border: 1px solid var(--line);
}

.message {
  min-height: 1.5em;
  margin: 10px 0 0;
  color: var(--danger);
  line-height: 1.6;
}

.login-panel,
.admin-workspace {
  padding-top: 12px;
}

.login-form {
  display: grid;
  gap: 12px;
}

.login-form label,
.status-editor legend {
  color: var(--muted);
  font-weight: 700;
}

.login-form input {
  min-height: 46px;
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 0 12px;
  background: var(--surface);
}

.admin-bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  margin-bottom: 16px;
  color: var(--muted);
}

.admin-bar p {
  margin: 0;
  font-size: 0.88rem;
}

.status-editor {
  display: grid;
  gap: 14px;
  margin-top: 18px;
}

.status-editor fieldset {
  display: grid;
  gap: 12px;
  margin: 0;
  padding: 14px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.72);
}

.status-editor label {
  display: flex;
  gap: 8px;
  align-items: center;
  min-height: 32px;
}

.selection-count {
  margin: 0;
  color: var(--muted);
  font-weight: 700;
}

[hidden] {
  display: none !important;
}

@media (min-width: 720px) {
  .page-shell {
    padding-inline: 28px;
  }

  .calendar-cell {
    aspect-ratio: 1 / 0.82;
  }

  .status-editor {
    grid-template-columns: 1fr auto;
    align-items: start;
  }

  .status-editor fieldset {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }

  .primary-button {
    width: auto;
    min-width: 140px;
    margin-top: 0;
  }

  .primary-link {
    width: auto;
    min-width: 260px;
  }
}