@import url('https://fonts.googleapis.com/css2?family=DM+Mono:wght@400;500&family=Zen+Kaku+Gothic+New:wght@400;500;700&display=swap');

/* ── トークン ─────────────────────────────────────────── */
:root {
  --ink:    #18221f;
  --muted:  #6d7772;
  --paper:  #f5f4ee;
  --line:   #d9ddd4;
  --accent: #d86b3f;
  --mint:   #d7e5d5;
  --radius: 2px;
}

/* ── リセット ─────────────────────────────────────────── */
*, *::before, *::after { box-sizing: border-box; }

body {
  margin: 0;
  color: var(--ink);
  background: radial-gradient(circle at 88% 8%, #dbe9de 0 11%, transparent 32%), var(--paper);
  font-family: 'Zen Kaku Gothic New', sans-serif;
  font-size: 14px;
  line-height: 1.5;
}

/* ── レイアウト ───────────────────────────────────────── */
.shell {
  max-width: 1180px;
  margin: auto;
  padding: 40px 32px 48px;
}

/* ── ヘッダー ─────────────────────────────────────────── */
.hero {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  border-bottom: 2px solid var(--ink);
  padding-bottom: 28px;
  margin-bottom: 0;
}

h1 {
  font-size: clamp(28px, 5vw, 56px);
  line-height: 1.05;
  letter-spacing: .01em;
  margin: 0 0 10px;
  font-weight: 500;
}
h1 em { color: var(--accent); font-style: normal; }

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

.hero-right {
  display: flex;
  flex-direction: column;
  align-items: flex-end;
  padding-top: 4px;
}

/* ── ツールバー（店舗 + 月ナビ + ステータス） ──────────── */
.controls {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 18px 0 14px;
  border-bottom: 1px solid var(--line);
  flex-wrap: wrap;
}

label {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 12px;
  font-family: 'DM Mono', monospace;
  white-space: nowrap;
}

select {
  height: 36px;
  border: 1px solid var(--line);
  background: var(--paper);
  padding: 0 10px;
  font: inherit;
  font-size: 13px;
  color: var(--ink);
  border-radius: var(--radius);
  cursor: pointer;
  outline-offset: 2px;
}
select:focus { outline: 2px solid var(--accent); }

/* ── 月ナビ ───────────────────────────────────────────── */
.month-nav {
  display: flex;
  align-items: center;
  gap: 6px;
}

.month-nav #month-label {
  font-family: 'DM Mono', monospace;
  font-size: 14px;
  font-weight: 500;
  min-width: 7em;
  text-align: left;
  padding-left: 4px;
}

/* ── ボタン共通 ───────────────────────────────────────── */
button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  height: 36px;
  border: 1px solid var(--ink);
  background: var(--ink);
  color: white;
  padding: 0 14px;
  font: inherit;
  font-size: 12px;
  font-family: 'DM Mono', monospace;
  border-radius: var(--radius);
  cursor: pointer;
  transition: background .15s, color .15s;
  white-space: nowrap;
}
button:hover { background: #2c3e39; }
button:disabled { opacity: .35; cursor: default; }

/* ナビボタンはゴーストスタイル */
#prev-month, #next-month {
  background: transparent;
  color: var(--ink);
  border-color: var(--line);
  padding: 0 10px;
}
#prev-month:hover, #next-month:hover {
  background: var(--mint);
  border-color: var(--ink);
}

/* ログアウト */
#logout {
  background: transparent;
  color: var(--muted);
  border-color: var(--line);
  font-size: 11px;
  height: 30px;
  padding: 0 10px;
  margin-top: 8px;
}
#logout:hover { background: var(--line); color: var(--ink); }

/* ── ステータス ───────────────────────────────────────── */
#status {
  margin-left: auto;
  color: var(--muted);
  font-size: 11px;
  font-family: 'DM Mono', monospace;
  letter-spacing: .03em;
}

/* ── 凡例 ─────────────────────────────────────────────── */
.legend {
  display: flex;
  gap: 20px;
  flex-wrap: wrap;
  font-size: 11px;
  font-family: 'DM Mono', monospace;
  color: var(--muted);
  padding: 12px 0 20px;
  letter-spacing: .03em;
}
.dot {
  display: inline-block;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  margin-right: 5px;
  vertical-align: middle;
}
.dot.available   { background: var(--accent); }
.dot.unavailable { background: var(--line); }

/* ── カレンダーグリッド ───────────────────────────────── */
.calendar-grid {
  display: grid;
  grid-template-columns: 1fr;
  width: 100%;
}

.month { border-top: 2px solid var(--ink); }
.month h2 { font-size: 18px; font-weight: 500; margin: 12px 0; }

.weekdays, .days {
  display: grid;
  grid-template-columns: repeat(7, minmax(0, 1fr));
}

.weekdays span {
  color: var(--muted);
  font: 11px 'DM Mono', monospace;
  padding: 6px 0 8px;
  text-align: center;
  letter-spacing: .04em;
}

.day, .blank {
  min-height: 96px;
  border-top: 1px solid var(--line);
  border-left: 1px solid var(--line);
  border-right: none;
  border-bottom: none;
  padding: 8px 8px 6px;
  text-decoration: none;
  color: var(--ink);
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 5px;
  transition: background .12s;
}
.day.sat, .blank.sat { border-right: 1px solid var(--line); }

.day { background: none; text-align: left; cursor: pointer; }
.day:hover { background: var(--mint); }

.day.sun  { background-color: #fff0f0; }
.day.sat  { background-color: #f0f4ff; }
.day.sun:hover { background-color: #ffe0e0; }
.day.sat:hover { background-color: #e0eaff; }

.day-number {
  display: flex;
  align-items: baseline;
  gap: 4px;
  font: 14px 'DM Mono', monospace;
}
.day-number small { font-size: 11px; color: var(--muted); }

.day strong {
  font: 500 16px 'DM Mono', monospace;
  display: block;
  align-self: center;
}
.day.available strong  { color: var(--accent); }
.day.unavailable       { color: #9ba29b; }
.day.unavailable strong { font-size: 10px; font-family: 'Zen Kaku Gothic New', sans-serif; }

.plan {
  color: var(--muted);
  font-size: 10px;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  align-self: center;
  width: 100%;
  text-align: center;
}

.loading, .error {
  grid-column: 1 / -1;
  padding: 60px;
  text-align: center;
  font-family: 'DM Mono', monospace;
}
.error { color: var(--accent); }

/* ── フッター ─────────────────────────────────────────── */
footer {
  border-top: 1px solid var(--line);
  display: flex;
  justify-content: space-between;
  gap: 20px;
  margin-top: 32px;
  padding-top: 16px;
  color: var(--muted);
  font-size: 10px;
  font-family: 'DM Mono', monospace;
  letter-spacing: .03em;
}
footer a { color: var(--ink); text-decoration: none; }
footer a:hover { text-decoration: underline; }

/* ── 履歴モーダル ─────────────────────────────────────── */
#history-modal { position: fixed; inset: 0; z-index: 100; }

.modal-backdrop {
  position: absolute;
  inset: 0;
  background: rgba(24, 34, 31, .55);
  display: grid;
  place-items: center;
  padding: 20px;
}

.modal-box {
  background: var(--paper);
  width: 100%;
  max-width: 560px;
  padding: 28px;
  position: relative;
  border-radius: var(--radius);
  box-shadow: 0 8px 32px rgba(24,34,31,.18);
}

.modal-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 14px;
}

.modal-title {
  font-family: 'DM Mono', monospace;
  font-size: 18px;
  font-weight: 500;
}

#modal-close {
  background: none;
  border: none;
  font-size: 18px;
  cursor: pointer;
  color: var(--muted);
  height: auto;
  padding: 4px 8px;
  border-radius: var(--radius);
}
#modal-close:hover { background: var(--line); color: var(--ink); }

.modal-msg {
  font-family: 'DM Mono', monospace;
  font-size: 11px;
  color: var(--muted);
  margin: 0 0 12px;
}

#history-chart { width: 100%; height: 220px; display: block; }

.modal-booking-btn {
  display: inline-block;
  margin-top: 20px;
  padding: 10px 20px;
  background: var(--ink);
  color: white;
  text-decoration: none;
  font-size: 13px;
  border-radius: var(--radius);
  transition: background .15s;
}
.modal-booking-btn:hover { background: #2c3e39; }

/* ── モバイル ─────────────────────────────────────────── */
@media (max-width: 800px) {
  .shell { padding: 24px 16px 36px; }

  .hero { align-items: flex-start; }
  h1 { font-size: clamp(24px, 8vw, 40px); }

  .hero-right { align-items: flex-end; }

  .controls { gap: 8px; padding: 14px 0 10px; }
  .month-nav { gap: 4px; }
  .month-nav #month-label { font-size: 12px; }

  #status { width: 100%; margin: 0; text-align: right; }

  footer { display: block; }
  footer a { display: block; margin-top: 10px; }

  .day, .blank { min-height: 48px; padding: 3px 2px; gap: 2px; }
  .day-number { font-size: 10px; }
  .day-number small { font-size: 8px; }
  .day strong { font-size: 10px; }
  .plan { display: none; }
  .weekdays span { font-size: 8px; }
}