/* ============================================================
   Render Booking — design system
   白基調＋深緑1色。静かなミニマリズム。モバイルファースト。
   ============================================================ */

:root {
  --accent: #17594c;
  --accent-strong: #0f4238;
  --accent-soft: #e7f0ed;
  --accent-softer: #f2f7f5;
  --ink: #1b1f1e;
  --ink-2: #55605c;
  --ink-3: #8b968f;
  --paper: #fbfbf9;
  --card: #ffffff;
  --line: #e5e8e4;
  --line-strong: #d3d8d2;
  --danger: #b03434;
  --danger-soft: #f9ecec;
  --radius: 10px;
  --radius-sm: 7px;
  --shadow: 0 1px 2px rgba(27, 31, 30, 0.04), 0 8px 24px -12px rgba(27, 31, 30, 0.12);
  --font: "Hiragino Kaku Gothic ProN", "Hiragino Sans", "Yu Gothic UI", "Noto Sans JP", "Meiryo", system-ui, sans-serif;
}

* { box-sizing: border-box; margin: 0; padding: 0; }

html { -webkit-text-size-adjust: 100%; }

body {
  font-family: var(--font);
  background:
    radial-gradient(1200px 400px at 50% -200px, var(--accent-softer), transparent 70%),
    var(--paper);
  color: var(--ink);
  line-height: 1.7;
  font-size: 15px;
  min-height: 100vh;
  font-feature-settings: "palt";
}

a { color: var(--accent); text-decoration: none; }
button { font-family: inherit; cursor: pointer; }
input, select, textarea { font-family: inherit; font-size: 16px; }

/* ---- layout ---- */
.wrap { max-width: 640px; margin: 0 auto; padding: 0 20px 96px; }
.wrap--wide { max-width: 960px; }

.site-header {
  padding: 28px 0 22px;
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 12px;
}
.wordmark {
  color: var(--ink);
  font-weight: 700;
  font-size: 17px;
  letter-spacing: 0.02em;
  display: inline-flex;
  align-items: center;
  gap: 9px;
}
.wordmark::before {
  content: "";
  width: 10px; height: 10px;
  background: var(--accent);
  border-radius: 3px;
  transform: rotate(45deg);
  flex: none;
}
.wordmark small {
  font-size: 10.5px;
  font-weight: 600;
  color: var(--ink-3);
  letter-spacing: 0.22em;
  text-transform: uppercase;
}
.footer-sep { margin: 0 10px; color: var(--line-strong); }
.admin-link { color: var(--ink-3); }
.admin-link:hover { color: var(--accent); }

/* ---- host intro ---- */
.host {
  display: flex;
  gap: 14px;
  align-items: flex-start;
  margin-top: 18px;
  padding: 16px 18px;
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
}
.host-mark {
  flex: none;
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background: var(--accent);
  color: #fff;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  font-size: 18px;
}
.host-name { font-weight: 700; font-size: 15.5px; line-height: 1.5; }
.host-name .host-title { font-weight: 500; color: var(--ink-2); font-size: 13px; }
.host-bio { color: var(--ink-2); font-size: 13px; margin-top: 4px; }

.site-footer {
  margin-top: 72px;
  padding: 20px 0 36px;
  border-top: 1px solid var(--line);
  color: var(--ink-3);
  font-size: 11.5px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  text-align: center;
}

/* ---- typography ---- */
.page-title { font-size: 22px; font-weight: 700; letter-spacing: 0.01em; line-height: 1.4; }
.page-lead { color: var(--ink-2); font-size: 13.5px; margin-top: 6px; }
.eyebrow {
  font-size: 10.5px;
  font-weight: 700;
  letter-spacing: 0.24em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 8px;
}

/* ---- cards ---- */
.card {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
}
.card + .card { margin-top: 14px; }

.type-card {
  display: block;
  padding: 20px 22px;
  transition: border-color 0.15s ease, transform 0.15s ease;
  color: var(--ink);
  position: relative;
}
.type-card:hover { border-color: var(--accent); transform: translateY(-1px); }
.type-card::after {
  content: "→";
  position: absolute;
  right: 20px; top: 22px;
  color: var(--ink-3);
  transition: color 0.15s, transform 0.15s;
}
.type-card:hover::after { color: var(--accent); transform: translateX(3px); }
.type-card h2, .type-card .type-name { font-size: 16.5px; font-weight: 700; padding-right: 28px; }

/* ---- category grouping ---- */
.cat-group { margin-bottom: 26px; }
.cat-group:last-child { margin-bottom: 0; }
.cat-title {
  font-size: 12.5px;
  font-weight: 700;
  letter-spacing: 0.08em;
  color: var(--ink-2);
  margin: 0 0 10px 2px;
  display: flex;
  align-items: center;
  gap: 9px;
}
.cat-title::before {
  content: "";
  width: 4px;
  height: 14px;
  border-radius: 2px;
  background: var(--accent);
}
.cat-items { display: flex; flex-direction: column; gap: 10px; }
.type-card p { color: var(--ink-2); font-size: 13px; margin-top: 6px; }
.type-meta { display: flex; gap: 8px; margin-top: 12px; flex-wrap: wrap; }
.chip {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  font-size: 11.5px;
  font-weight: 600;
  color: var(--accent-strong);
  background: var(--accent-soft);
  border-radius: 99px;
  padding: 3px 11px;
  letter-spacing: 0.03em;
}

/* ---- steps ---- */
.steps {
  display: flex;
  gap: 0;
  margin: 22px 0 20px;
  border-bottom: 1px solid var(--line);
}
.step {
  flex: 1;
  text-align: center;
  padding: 0 4px 10px;
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.06em;
  color: var(--ink-3);
  border-bottom: 2px solid transparent;
  margin-bottom: -1px;
  white-space: nowrap;
}
.step .n {
  display: inline-flex;
  width: 17px; height: 17px;
  align-items: center; justify-content: center;
  border-radius: 50%;
  border: 1px solid var(--line-strong);
  font-size: 10px;
  margin-right: 5px;
  vertical-align: 1px;
}
.step.is-active { color: var(--accent-strong); border-bottom-color: var(--accent); }
.step.is-active .n { background: var(--accent); border-color: var(--accent); color: #fff; }
.step.is-done { color: var(--ink-2); }
.step.is-done .n { background: var(--accent-soft); border-color: var(--accent-soft); color: var(--accent-strong); }

/* ---- calendar ---- */
.cal-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 16px 18px 8px;
}
.cal-title { font-weight: 700; font-size: 15px; letter-spacing: 0.04em; }
.cal-nav {
  border: 1px solid var(--line);
  background: #fff;
  border-radius: var(--radius-sm);
  width: 34px; height: 34px;
  font-size: 15px;
  color: var(--ink-2);
  transition: all 0.15s;
}
.cal-nav:hover:not(:disabled) { border-color: var(--accent); color: var(--accent); }
.cal-nav:disabled { opacity: 0.35; cursor: default; }
.cal-grid {
  display: grid;
  grid-template-columns: repeat(7, 1fr);
  gap: 4px;
  padding: 8px 14px 18px;
}
.cal-dow {
  text-align: center;
  font-size: 10.5px;
  font-weight: 700;
  color: var(--ink-3);
  letter-spacing: 0.1em;
  padding: 6px 0;
}
.cal-dow.sun { color: #b56a6a; }
.cal-dow.sat { color: #5f7ba6; }
.cal-day {
  aspect-ratio: 1;
  border: 1px solid transparent;
  background: transparent;
  border-radius: var(--radius-sm);
  font-size: 13.5px;
  color: var(--ink-3);
  position: relative;
  font-variant-numeric: tabular-nums;
}
.cal-day.has-slots {
  color: var(--ink);
  font-weight: 600;
  background: var(--accent-softer);
  border-color: var(--line);
  transition: all 0.12s;
}
.cal-day.has-slots::after {
  content: "";
  position: absolute;
  left: 50%; bottom: 15%;
  transform: translateX(-50%);
  width: 4px; height: 4px;
  border-radius: 50%;
  background: var(--accent);
}
.cal-day.has-slots:hover { border-color: var(--accent); background: var(--accent-soft); }
.cal-day.is-selected {
  background: var(--accent);
  border-color: var(--accent);
  color: #fff;
}
.cal-day.is-selected::after { background: #fff; }
.cal-legend { padding: 0 18px 16px; font-size: 11.5px; color: var(--ink-3); }
.cal-legend i {
  display: inline-block; width: 5px; height: 5px; border-radius: 50%;
  background: var(--accent); margin-right: 6px; vertical-align: 2px;
}

/* ---- slots ---- */
.slot-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 9px;
  padding: 16px 18px 20px;
}
.slot-btn {
  border: 1px solid var(--line-strong);
  background: #fff;
  border-radius: var(--radius-sm);
  padding: 11px 4px;
  font-size: 14.5px;
  font-weight: 600;
  color: var(--ink);
  font-variant-numeric: tabular-nums;
  letter-spacing: 0.04em;
  transition: all 0.12s;
}
.slot-btn:hover { border-color: var(--accent); color: var(--accent-strong); background: var(--accent-softer); }
.section-label {
  padding: 16px 18px 0;
  font-size: 12.5px;
  font-weight: 700;
  color: var(--ink-2);
}

/* ---- forms ---- */
.form { padding: 20px 18px 22px; display: grid; gap: 16px; }
.field label {
  display: block;
  font-size: 12.5px;
  font-weight: 700;
  color: var(--ink-2);
  margin-bottom: 6px;
}
.field label .req { color: var(--danger); font-size: 11px; margin-left: 4px; }
.field input, .field textarea, .field select {
  width: 100%;
  border: 1px solid var(--line-strong);
  border-radius: var(--radius-sm);
  padding: 11px 13px;
  background: #fff;
  color: var(--ink);
  transition: border-color 0.15s, box-shadow 0.15s;
}
.field input:focus, .field textarea:focus, .field select:focus {
  outline: none;
  border-color: var(--accent);
  box-shadow: 0 0 0 3px var(--accent-soft);
}
.field textarea { resize: vertical; min-height: 88px; }

/* ---- buttons ---- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 7px;
  border: 1px solid transparent;
  border-radius: var(--radius-sm);
  font-size: 14.5px;
  font-weight: 700;
  padding: 12px 22px;
  letter-spacing: 0.03em;
  transition: all 0.15s;
}
.btn--primary { background: var(--accent); color: #fff; }
.btn--primary:hover { background: var(--accent-strong); }
.btn--ghost { background: #fff; border-color: var(--line-strong); color: var(--ink-2); }
.btn--ghost:hover { border-color: var(--ink-3); color: var(--ink); }
.btn--danger { background: var(--danger); color: #fff; }
.btn--danger:hover { background: #8f2727; }
.btn--line { background: #06C755; color: #fff; }
.btn--line:hover { background: #05b34c; }

/* モーダル（手動キャンセルの文面編集など） */
.modal-overlay {
  position: fixed; inset: 0; z-index: 1000;
  background: rgba(20, 24, 28, 0.55);
  display: flex; align-items: center; justify-content: center;
  padding: 20px;
}
.modal {
  background: #fff; border-radius: 16px;
  width: 100%; max-width: 480px; padding: 24px;
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.25);
  max-height: calc(100vh - 40px); overflow-y: auto;
}
.modal-title { margin: 0 0 6px; font-size: 19px; }
.modal-sub { margin: 0 0 16px; color: var(--ink-2); font-size: 13px; line-height: 1.6; }
.chip-row { display: flex; flex-wrap: wrap; gap: 8px; margin-bottom: 14px; }
.chip {
  border: 1px solid var(--line-strong); background: #fff; color: var(--ink-2);
  border-radius: 999px; padding: 6px 14px; font-size: 13px; cursor: pointer;
}
.chip:hover { border-color: var(--accent); color: var(--accent); }
.modal-actions { display: flex; gap: 10px; justify-content: flex-end; margin-top: 18px; }
.btn--block { width: 100%; }
.btn:disabled { opacity: 0.55; cursor: default; }
.btn-row { display: flex; gap: 10px; margin-top: 4px; }
.btn-row .btn { flex: 1; }

.back-link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 13px;
  font-weight: 600;
  color: var(--ink-2);
  background: none;
  border: none;
  padding: 4px 0;
  margin: 14px 0 0;
}
.back-link:hover { color: var(--accent); }

/* ---- summary / confirm ---- */
.summary { padding: 6px 18px; }
.summary-row {
  display: flex;
  justify-content: space-between;
  gap: 16px;
  padding: 13px 0;
  border-bottom: 1px solid var(--line);
  font-size: 14px;
}
.summary-row:last-child { border-bottom: none; }
.summary-row dt { color: var(--ink-3); font-size: 12.5px; font-weight: 600; flex: none; padding-top: 1px; }
.summary-row dd { text-align: right; font-weight: 600; word-break: break-word; }

/* ---- done ---- */
.done { text-align: center; padding: 44px 24px 40px; }
.done-icon {
  width: 56px; height: 56px;
  margin: 0 auto 18px;
  border-radius: 50%;
  background: var(--accent-soft);
  color: var(--accent);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 26px;
  animation: pop 0.4s cubic-bezier(0.2, 1.4, 0.5, 1);
}
@keyframes pop { from { transform: scale(0.4); opacity: 0; } }
.done h2 { font-size: 19px; margin-bottom: 8px; }
.done p { color: var(--ink-2); font-size: 13.5px; }
.done .note-box {
  margin: 20px auto 0;
  max-width: 400px;
  text-align: left;
  background: var(--accent-softer);
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  padding: 14px 16px;
  font-size: 13px;
  color: var(--ink-2);
  word-break: break-all;
}
/* ---- LINE連携オプトイン（予約完了画面） ---- */
.line-optin {
  max-width: 400px;
  margin: 20px auto 0;
  padding: 18px;
  border: 1.5px solid #06c755;
  border-radius: var(--radius);
  background: #f1fcf5;
  text-align: left;
}
.line-optin-top { display: flex; align-items: center; gap: 9px; margin-bottom: 8px; }
.line-badge {
  flex: none;
  background: #06c755; color: #fff; font-weight: 700;
  font-size: 11px; letter-spacing: 0.08em;
  padding: 3px 9px; border-radius: 5px;
}
.line-optin-top strong { font-size: 15px; color: var(--ink); }
.line-optin-desc { font-size: 13px; color: var(--ink-2); line-height: 1.65; margin: 0 0 14px; }
.line-optin .btn--line { margin: 0; max-width: none; }
.line-optin-note { font-size: 12px; color: var(--ink-2); text-align: center; margin: 10px 0 0; }
.line-optin--done {
  border: 1px solid var(--line-strong);
  background: var(--accent-softer);
  display: flex; align-items: baseline; justify-content: center;
  gap: 8px; flex-wrap: wrap; padding: 14px 18px;
}
.line-optin--done strong { color: var(--accent-strong); font-size: 14px; }
.line-optin--done span { font-size: 13px; color: var(--ink-2); }

/* ---- alerts ---- */
.alert {
  margin: 14px 0 0;
  padding: 12px 15px;
  border-radius: var(--radius-sm);
  font-size: 13.5px;
  border: 1px solid;
}
.alert--error { background: var(--danger-soft); border-color: #e5c5c5; color: var(--danger); }
.alert--info { background: var(--accent-softer); border-color: var(--line); color: var(--ink-2); }

.empty {
  padding: 40px 20px;
  text-align: center;
  color: var(--ink-3);
  font-size: 13.5px;
}

.loading {
  padding: 48px 0;
  text-align: center;
  color: var(--ink-3);
  font-size: 13px;
  letter-spacing: 0.1em;
}
.loading::before {
  content: "";
  display: block;
  width: 22px; height: 22px;
  margin: 0 auto 12px;
  border: 2px solid var(--line-strong);
  border-top-color: var(--accent);
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
}
@keyframes spin { to { transform: rotate(360deg); } }

/* fade-in for view transitions */
.view { animation: rise 0.28s ease both; }
@keyframes rise { from { opacity: 0; transform: translateY(6px); } }

/* ============================================================
   admin
   ============================================================ */
.tabs {
  display: flex;
  gap: 2px;
  border-bottom: 1px solid var(--line);
  margin: 20px 0 18px;
  overflow-x: auto;
}
.tab {
  border: none;
  background: none;
  padding: 9px 14px 11px;
  font-size: 13.5px;
  font-weight: 700;
  color: var(--ink-3);
  border-bottom: 2px solid transparent;
  margin-bottom: -1px;
  white-space: nowrap;
}
.tab.is-active { color: var(--accent-strong); border-bottom-color: var(--accent); }

.admin-list { display: grid; gap: 10px; }
.admin-item {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  padding: 14px 16px;
}
.admin-item-head {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-wrap: wrap;
}
.admin-item-head strong { font-size: 14.5px; }
.admin-item .meta { color: var(--ink-2); font-size: 12.5px; margin-top: 4px; word-break: break-word; }
.admin-item .actions { margin-top: 10px; display: flex; gap: 8px; flex-wrap: wrap; }
.btn--sm { padding: 6px 13px; font-size: 12.5px; }

.status-chip {
  font-size: 11px;
  font-weight: 700;
  border-radius: 99px;
  padding: 2px 10px;
  letter-spacing: 0.05em;
}
.status-chip--confirmed { background: var(--accent-soft); color: var(--accent-strong); }
.status-chip--cancelled { background: #eee; color: var(--ink-3); }
.badge-error {
  font-size: 11px;
  font-weight: 700;
  border-radius: 99px;
  padding: 2px 10px;
  background: var(--danger-soft);
  color: var(--danger);
  border: 1px solid #e5c5c5;
  cursor: pointer;
}
.error-detail {
  margin-top: 10px;
  background: #fbf7f7;
  border: 1px solid #eddcdc;
  border-radius: var(--radius-sm);
  padding: 10px 12px;
  font-size: 11.5px;
  font-family: ui-monospace, "Cascadia Mono", Consolas, monospace;
  color: #7c3a3a;
  white-space: pre-wrap;
  word-break: break-all;
}

.admin-form {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 18px;
  margin-bottom: 18px;
}
.admin-form h3 { font-size: 14px; margin-bottom: 14px; }
.form-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }
.form-grid .field--full { grid-column: 1 / -1; }

.login-card { max-width: 380px; margin: 8vh auto 0; padding: 32px 28px; }
.login-card h1 { font-size: 18px; margin-bottom: 4px; }
.login-card p { color: var(--ink-2); font-size: 13px; margin-bottom: 20px; }

@media (min-width: 560px) {
  body { font-size: 15.5px; }
  .slot-grid { grid-template-columns: repeat(4, 1fr); }
  .page-title { font-size: 25px; }
}