/* ============================================================
   あまてらす 予約システム フロントエンド スタイル
   ============================================================ */

:root {
  --bk-bg: #f7f8fa;
  --bk-text: #1a1f2e;
  --bk-muted: #6b7280;
  --bk-line: #e5e7eb;
  --bk-pri: #0ea5e9;
  --bk-pri-deep: #0284c7;
  --bk-warm: #f59e0b;
  --bk-warm-soft: #fef3c7;
  --bk-ok: #10b981;
  --bk-ng: #ef4444;
  --bk-card: #fff;
}
* { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  font-family: "Hiragino Sans", "Yu Gothic UI", "Noto Sans JP", sans-serif;
  background: var(--bk-bg);
  color: var(--bk-text);
  font-size: 15px;
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
}
a { color: var(--bk-pri-deep); }

.bk-header {
  background: #fff;
  border-bottom: 1px solid var(--bk-line);
  padding: 14px 20px;
  display: flex;
  align-items: center;
  gap: 16px;
  position: sticky; top: 0; z-index: 10;
}
.bk-brand-link { display: inline-flex; align-items: center; gap: 10px; text-decoration: none; min-width: 0; flex-shrink: 1; flex: 1; }
.bk-brand-link img { height: 30px; width: auto; display: block; flex-shrink: 0; }
.bk-brand-link .pg { font-size: 13px; font-weight: 600; color: var(--bk-muted); padding-left: 12px; border-left: 1px solid var(--bk-line); line-height: 1.3; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.bk-brand-link:hover .pg { color: var(--bk-pri-deep); }
.bk-phone { font-weight: 700; color: var(--bk-text); text-decoration: none; font-size: 14px; white-space: nowrap; flex-shrink: 0; }
.bk-phone:hover { color: var(--bk-pri-deep); }

.bk-banner {
  background: var(--bk-warm-soft);
  border-bottom: 1px solid #fcd34d;
  padding: 14px 20px;
  text-align: center;
  font-size: 14px;
  color: #92400e;
  line-height: 1.7;
}
.bk-banner strong { display: block; margin-bottom: 4px; font-size: 15px; }

/* === パンくず === */
.bk-breadcrumb { background: #f1f5f9; border-bottom: 1px solid var(--bk-line); padding: 9px 16px; font-size: 12.5px; }
.bk-breadcrumb-inner { max-width: 760px; margin: 0 auto; display: flex; align-items: center; gap: 8px; flex-wrap: wrap; }
.bk-breadcrumb a { color: var(--bk-pri-deep); text-decoration: none; }
.bk-breadcrumb a:hover { text-decoration: underline; }
.bk-breadcrumb .sep { color: var(--bk-muted); margin: 0 2px; }
.bk-breadcrumb .current { color: var(--bk-text); font-weight: 600; }
@media (max-width: 480px) { .bk-breadcrumb { padding: 8px 12px; font-size: 11.5px; } }

/* === ページ末尾「TOPへ戻る」ボタン === */
.bk-back-block { text-align: center; padding: 36px 16px 8px; background: var(--bk-bg); }
.bk-back-btn { display: inline-flex; align-items: center; gap: 8px; padding: 13px 32px; background: #fff; border: 1.5px solid var(--bk-line); border-radius: 50px; color: var(--bk-text); font-size: 14.5px; font-weight: 600; text-decoration: none; transition: all .15s; box-shadow: 0 2px 8px rgba(0,0,0,0.04); }
.bk-back-btn:hover { border-color: var(--bk-pri-deep); color: var(--bk-pri-deep); transform: translateY(-1px); box-shadow: 0 6px 16px rgba(14,165,233,0.12); }
.bk-back-btn .arr { font-size: 18px; line-height: 1; }
@media (max-width: 480px) { .bk-back-btn { padding: 12px 24px; font-size: 14px; } }

.bk-main { max-width: 760px; margin: 0 auto; padding: 24px 16px 80px; }
.bk-card { overflow: hidden; }

/* ヒーロー */
.bk-hero {
  background: linear-gradient(135deg, #0c4a6e 0%, #1e293b 100%);
  color: #fff;
  border-radius: 14px;
  padding: 28px 24px;
  margin-bottom: 24px;
  text-align: center;
}
.bk-hero h1 { font-size: 22px; font-weight: 800; margin-bottom: 8px; letter-spacing: 0.02em; }
.bk-hero p { font-size: 14px; color: rgba(255,255,255,0.85); }

/* セクションカード */
.bk-card {
  background: var(--bk-card);
  border-radius: 14px;
  padding: 22px 22px;
  margin-bottom: 18px;
  border: 1px solid var(--bk-line);
}
.bk-card h2 {
  font-size: 17px;
  font-weight: 700;
  margin-bottom: 14px;
  color: var(--bk-text);
}
.bk-card h2 .step {
  display: inline-block;
  background: var(--bk-pri);
  color: #fff;
  font-size: 11px;
  font-weight: 700;
  padding: 3px 10px;
  border-radius: 50px;
  margin-right: 8px;
  vertical-align: middle;
  letter-spacing: 0.05em;
}

/* サービス選択カード */
.bk-services { display: grid; grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); gap: 12px; }
.bk-svc {
  display: block;
  background: #fff;
  border: 2px solid var(--bk-line);
  border-radius: 12px;
  padding: 18px;
  text-decoration: none;
  color: var(--bk-text);
  transition: all 0.15s;
}
.bk-svc:hover { border-color: var(--bk-pri); box-shadow: 0 6px 20px rgba(14,165,233,0.10); transform: translateY(-2px); }
.bk-svc.featured { background: linear-gradient(135deg, #0ea5e9 0%, #0284c7 100%); color: #fff; border-color: #0284c7; }
.bk-svc.featured:hover { box-shadow: 0 10px 28px rgba(14,165,233,0.32); }
.bk-svc .svc-tag {
  display: inline-block;
  font-size: 11px;
  font-weight: 700;
  padding: 3px 9px;
  border-radius: 50px;
  background: rgba(0,0,0,0.07);
  color: var(--bk-muted);
  margin-bottom: 10px;
  letter-spacing: 0.05em;
}
.bk-svc.featured .svc-tag { background: rgba(255,255,255,0.25); color: #fff; }
.bk-svc h3 { font-size: 17px; font-weight: 700; margin-bottom: 6px; }
.bk-svc p { font-size: 13px; color: var(--bk-muted); line-height: 1.65; }
.bk-svc.featured p { color: rgba(255,255,255,0.85); }
.bk-svc .svc-arrow { margin-top: 10px; font-size: 13px; font-weight: 600; }
.bk-svc.featured .svc-arrow { color: #fff; }

/* カレンダー */
.bk-cal { user-select: none; }
.bk-cal-nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 14px;
}
.bk-cal-nav button {
  background: #fff;
  border: 1px solid var(--bk-line);
  border-radius: 8px;
  padding: 6px 14px;
  font-size: 13px;
  cursor: pointer;
  font-family: inherit;
}
.bk-cal-nav button:disabled { opacity: 0.3; cursor: not-allowed; }
.bk-cal-nav .bk-cal-month { font-size: 16px; font-weight: 700; }

.bk-cal { width: 100%; max-width: 100%; }

.bk-cal-week {
  display: grid;
  grid-template-columns: repeat(7, minmax(0, 1fr));
  gap: 4px;
  margin-bottom: 4px;
  font-size: 11px;
  color: var(--bk-muted);
  text-align: center;
}
.bk-cal-week > * { min-width: 0; padding: 4px 0; }
.bk-cal-week .sun { color: #dc2626; }
.bk-cal-week .sat { color: #2563eb; }

.bk-cal-grid {
  display: grid;
  grid-template-columns: repeat(7, minmax(0, 1fr));
  gap: 4px;
}
.bk-cell {
  aspect-ratio: 1 / 1.05;
  background: #fff;
  border: 1px solid var(--bk-line);
  border-radius: 8px;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  font-size: 14px;
  position: relative;
  padding: 4px 2px 6px;
  min-width: 0;
  overflow: hidden;
}
.bk-cell.empty { visibility: hidden; }
.bk-cell .num { font-size: 13px; font-weight: 600; }
.bk-cell .mark { font-size: 22px; font-weight: 800; line-height: 1; margin-top: 4px; }
.bk-cell.sun .num { color: #dc2626; }
.bk-cell.sat .num { color: #2563eb; }

.bk-cell.open    { background: #f0fdf4; border-color: var(--bk-ok); cursor: pointer; }
.bk-cell.open .mark { color: var(--bk-ok); }
.bk-cell.open:hover { background: var(--bk-ok); color: #fff; }
.bk-cell.open:hover .num, .bk-cell.open:hover .mark { color: #fff; }

.bk-cell.partial { background: #f0fdf4; border-color: var(--bk-ok); cursor: pointer; }
.bk-cell.partial .mark { color: var(--bk-ok); }
.bk-cell.partial:hover { background: var(--bk-ok); color: #fff; }
.bk-cell.partial:hover .num, .bk-cell.partial:hover .mark { color: #fff; }

.bk-cell.lead    { background: #fef3c7; border-color: #fcd34d; }
.bk-cell.lead .mark { color: #92400e; }

.bk-cell.full,
.bk-cell.holiday { background: #fee2e2; border-color: #fca5a5; }
.bk-cell.full .mark, .bk-cell.holiday .mark { color: #991b1b; }

.bk-cell.selected { background: var(--bk-pri); border-color: var(--bk-pri-deep); color: #fff; box-shadow: 0 4px 12px rgba(14,165,233,0.4); }
.bk-cell.selected .num, .bk-cell.selected .mark { color: #fff; }

.bk-legend {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  font-size: 12px;
  color: var(--bk-muted);
  padding: 12px 0 4px;
  justify-content: center;
}
.bk-legend span { display: inline-flex; align-items: center; gap: 4px; }
.bk-legend .lg { display: inline-block; width: 18px; height: 18px; border-radius: 4px; border: 1px solid; text-align: center; line-height: 16px; font-weight: 800; font-size: 12px; }
.bk-legend .lg-open { background: #f0fdf4; border-color: var(--bk-ok); color: var(--bk-ok); }
.bk-legend .lg-lead { background: #fef3c7; border-color: #fcd34d; color: #92400e; }
.bk-legend .lg-full { background: #fee2e2; border-color: #fca5a5; color: #991b1b; }

/* 時間帯選択 */
.bk-slots { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; }
.bk-slot {
  background: #fff;
  border: 2px solid var(--bk-line);
  border-radius: 10px;
  padding: 16px;
  cursor: pointer;
  text-align: center;
  font-family: inherit;
  font-size: 14px;
}
.bk-slot:hover:not(:disabled) { border-color: var(--bk-pri); }
.bk-slot.selected { background: var(--bk-pri); color: #fff; border-color: var(--bk-pri-deep); }
.bk-slot:disabled { opacity: 0.4; cursor: not-allowed; background: #f3f4f6; }
.bk-slot .slot-label { font-weight: 700; font-size: 16px; }
.bk-slot .slot-time { font-size: 12px; color: var(--bk-muted); margin-top: 2px; }
.bk-slot.selected .slot-time { color: rgba(255,255,255,0.85); }

/* フォーム */
.bk-field { margin-bottom: 14px; }
.bk-field label {
  display: block;
  font-size: 13px;
  font-weight: 600;
  margin-bottom: 6px;
  color: var(--bk-text);
}
.bk-field label .req { color: var(--bk-ng); margin-left: 4px; font-size: 11px; }
.bk-field input, .bk-field textarea, .bk-field select {
  width: 100%;
  max-width: 100%;
  padding: 10px 14px;
  border: 1px solid var(--bk-line);
  border-radius: 8px;
  font-size: 15px;
  font-family: inherit;
  background: #fff;
}
.bk-field textarea { resize: vertical; min-height: 80px; }
.bk-field input:focus, .bk-field textarea:focus, .bk-field select:focus {
  outline: none;
  border-color: var(--bk-pri);
  box-shadow: 0 0 0 3px rgba(14,165,233,0.1);
}
.bk-field .hint { font-size: 12px; color: var(--bk-muted); margin-top: 4px; }
.bk-row { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }
@media (max-width: 520px) { .bk-row { grid-template-columns: 1fr; } }

/* ボタン */
.bk-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 13px 26px;
  background: var(--bk-pri);
  color: #fff;
  border: 1px solid transparent;
  border-radius: 10px;
  font-size: 15px;
  font-weight: 700;
  text-decoration: none;
  cursor: pointer;
  font-family: inherit;
  transition: all 0.15s;
  gap: 6px;
}
.bk-btn:hover { background: var(--bk-pri-deep); }
.bk-btn:disabled { opacity: 0.5; cursor: not-allowed; }
.bk-btn-pri { background: var(--bk-pri); }
.bk-btn-line { background: #06c755; }
.bk-btn-line:hover { background: #04a648; }
.bk-btn-out { background: transparent; color: var(--bk-pri-deep); border-color: var(--bk-pri); }
.bk-btn-out:hover { background: var(--bk-pri); color: #fff; }
.bk-btn-block { width: 100%; }
.bk-btn-lg { padding: 16px 28px; font-size: 16px; }

.bk-actions { margin-top: 18px; display: flex; gap: 10px; flex-wrap: wrap; }
.bk-actions .bk-btn { flex: 1; min-width: 140px; }

/* 選択中表示 */
.bk-selected-banner {
  background: linear-gradient(135deg, #ecfdf5 0%, #d1fae5 100%);
  border: 1px solid #6ee7b7;
  border-radius: 10px;
  padding: 14px 18px;
  margin-bottom: 14px;
  font-size: 14px;
  color: #065f46;
}
.bk-selected-banner strong { font-size: 15px; }

/* 選択ガイダンス */
.bk-guide {
  background: #f9fafb;
  border-left: 3px solid var(--bk-pri);
  padding: 12px 16px;
  margin-bottom: 14px;
  font-size: 13px;
  color: var(--bk-muted);
}

/* メッセージ */
.bk-msg {
  padding: 12px 16px;
  border-radius: 8px;
  margin-bottom: 14px;
  font-size: 14px;
}
.bk-msg.error { background: #fee2e2; color: #991b1b; border: 1px solid #fca5a5; }
.bk-msg.success { background: #d1fae5; color: #065f46; border: 1px solid #a7f3d0; }
.bk-msg.info { background: #dbeafe; color: #1e40af; border: 1px solid #93c5fd; }

/* 完了画面 */
.bk-done {
  text-align: center;
  padding: 40px 20px;
}
.bk-done .icon { font-size: 60px; margin-bottom: 14px; }
.bk-done h1 { font-size: 24px; margin-bottom: 12px; color: var(--bk-text); }
.bk-done p { color: var(--bk-muted); margin-bottom: 18px; line-height: 1.9; }
.bk-done .summary {
  background: #f9fafb;
  border-radius: 10px;
  padding: 18px;
  margin: 18px 0;
  text-align: left;
  font-size: 14px;
  border: 1px solid var(--bk-line);
}
.bk-done .summary dt { color: var(--bk-muted); font-size: 12px; margin-top: 8px; }
.bk-done .summary dd { font-weight: 600; }

/* フッター */
.bk-footer {
  background: #1a1f2e;
  color: #fff;
  margin-top: 40px;
  padding: 28px 16px;
}
.bk-footer-inner { max-width: 760px; margin: 0 auto; text-align: center; }
.bk-footer-inner p { color: rgba(255,255,255,0.85); font-size: 14px; margin-bottom: 14px; }
.bk-footer-cta { display: flex; gap: 10px; justify-content: center; flex-wrap: wrap; margin-bottom: 16px; }
.bk-footer-cta .bk-btn { min-width: 180px; }
.bk-footer-meta { font-size: 12px; color: rgba(255,255,255,0.5); margin-top: 14px; }
.bk-footer-meta a { color: rgba(255,255,255,0.7); text-decoration: none; }

/* ============================================================
   モバイル対応（スマホ崩れ修正）
   ============================================================ */
@media (max-width: 640px) {
  body { font-size: 14px; }

  /* ヘッダー：3項目を縮めて1行に納める */
  .bk-header { padding: 10px 12px; gap: 8px; }
  .bk-brand-link img { height: 26px; }
  .bk-brand-link .pg { font-size: 12px; padding-left: 10px; }
  .bk-phone { font-size: 13px; }

  .bk-main { padding: 16px 12px 60px; }

  /* ヒーロー */
  .bk-hero { padding: 22px 18px; border-radius: 12px; margin-bottom: 16px; }
  .bk-hero h1 { font-size: 19px; }
  .bk-hero p { font-size: 13px; }

  /* カード */
  .bk-card { padding: 18px 16px; border-radius: 12px; margin-bottom: 14px; }
  .bk-card h2 { font-size: 16px; margin-bottom: 12px; }

  /* フォーム行を1列に */
  .bk-row { grid-template-columns: 1fr; gap: 0; }
  .bk-field { margin-bottom: 12px; }

  /* iOSフォーカスズーム防止のため input は 16px 以上 */
  .bk-field input, .bk-field textarea, .bk-field select {
    font-size: 16px;
    padding: 11px 13px;
  }
  .bk-field label { font-size: 12.5px; }

  /* カレンダー */
  .bk-cal-nav { gap: 8px; margin-bottom: 12px; }
  .bk-cal-nav button { padding: 6px 10px; font-size: 12px; white-space: nowrap; }
  .bk-cal-nav .bk-cal-month { font-size: 14px; white-space: nowrap; }
  .bk-cal-week { gap: 3px; font-size: 10px; }
  .bk-cal-week > * { padding: 3px 0; }
  .bk-cal-grid { gap: 3px; }
  .bk-cell { padding: 2px 1px 4px; border-radius: 6px; }
  .bk-cell .num { font-size: 11px; }
  .bk-cell .mark { font-size: 16px; margin-top: 2px; line-height: 1; }
  .bk-legend { gap: 10px; font-size: 11px; padding: 10px 0 2px; }
  .bk-legend .lg { width: 16px; height: 16px; line-height: 14px; font-size: 10px; }

  /* スロット選択 */
  .bk-slot { padding: 12px 8px; }
  .bk-slot .slot-label { font-size: 15px; }
  .bk-slot .slot-time { font-size: 11px; }

  /* ボタン関連 */
  .bk-btn { padding: 12px 18px; font-size: 14px; }
  .bk-btn-lg { padding: 14px 20px; font-size: 15px; }
  .bk-btn-block { width: 100%; flex: 1 1 100% !important; }

  /* メンテモード時の縦並びボタン: flex:1 と min-width:140 を打ち消す */
  .bk-actions { gap: 8px; }
  .bk-actions .bk-btn { min-width: 0; }
  .bk-actions .bk-btn-block { flex: 1 1 100%; }

  /* バナー類 */
  .bk-banner { padding: 12px 14px; font-size: 13px; }
  .bk-banner strong { font-size: 14px; }
  .bk-selected-banner { padding: 12px 14px; font-size: 13px; }
  .bk-guide { padding: 10px 12px; font-size: 12px; }
  .bk-msg { padding: 10px 14px; font-size: 13px; }

  /* サービス選択カード */
  .bk-services { grid-template-columns: 1fr; gap: 10px; }
  .bk-svc { padding: 14px 16px; }
  .bk-svc h3 { font-size: 16px; }
  .bk-svc p { font-size: 12.5px; }

  /* 完了画面 */
  .bk-done { padding: 28px 12px; }
  .bk-done h1 { font-size: 20px; }
  .bk-done .icon { font-size: 48px; }
  .bk-done .summary { padding: 14px; font-size: 13px; }

  /* フッター */
  .bk-footer { padding: 22px 14px; margin-top: 28px; }
  .bk-footer-cta { gap: 8px; }
  .bk-footer-cta .bk-btn { min-width: 0; flex: 1 1 100%; }
}

/* iPhone SE / Android 360px 以下の極小スマホ向け */
@media (max-width: 380px) {
  .bk-header { padding: 9px 10px; gap: 6px; }
  .bk-brand-link img { height: 24px; }
  .bk-brand-link .pg { font-size: 11px; padding-left: 8px; }
  .bk-phone { font-size: 12px; }

  .bk-cell .num { font-size: 10px; }
  .bk-cell .mark { font-size: 14px; }

  .bk-card { padding: 16px 14px; }
  .bk-hero { padding: 20px 14px; }
  .bk-hero h1 { font-size: 17px; }
}