/*
 * にし阿波の花火 観覧バスツアー 2026 お申込みフォーム
 * 旅行業法準拠 / Netlify 静的配信
 */

:root {
  --indigo-deep: #0d2447;
  --indigo: #143258;
  --vermillion: #d8462f;
  --vermillion-deep: #b8311e;
  --gold: #e0a93a;
  --paper: #fffdf6;
  --paper-2: #fff;
  --ink: #14182a;
  --ink-soft: #2e3447;
  --muted: #6a7185;
  --border: #d8d6cd;
  --border-strong: #b8b6ad;
  --bg-alt: #f5f3eb;
  --error: #c8200a;
  --success: #1d7a44;
}

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

body {
  font-family: "Hiragino Kaku Gothic ProN", "Yu Gothic UI", "Yu Gothic", Meiryo, sans-serif;
  font-size: 15px;
  line-height: 1.7;
  color: var(--ink);
  background: var(--bg-alt);
  -webkit-text-size-adjust: 100%;
}

a { color: var(--indigo-deep); }
a:hover { color: var(--vermillion); }

/* honeypot: 画面外配置・読み上げ対象外 */
.hp-field {
  position: absolute;
  left: -9999px;
  width: 1px;
  height: 1px;
  overflow: hidden;
}

/* ===== Header ===== */
.site-header {
  background: var(--indigo-deep);
  color: #fff;
  padding: 14px 20px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  position: sticky;
  top: 0;
  z-index: 100;
  border-bottom: 3px solid var(--gold);
}
.site-header .brand { font-weight: 700; font-size: 16px; letter-spacing: 0.04em; }
.site-header .back-link {
  color: #fff;
  text-decoration: none;
  font-size: 13px;
  padding: 6px 12px;
  border: 1px solid rgba(255,255,255,0.4);
  border-radius: 4px;
}
.site-header .back-link:hover { background: rgba(255,255,255,0.1); }

/* ===== Layout ===== */
main {
  max-width: 880px;
  margin: 0 auto;
  padding: 24px 20px 60px;
}

.tour-summary {
  background: var(--paper-2);
  border: 1px solid var(--border);
  border-left: 4px solid var(--vermillion);
  padding: 18px 22px;
  margin-bottom: 24px;
  border-radius: 4px;
}
.tour-summary h1 {
  margin: 0 0 10px;
  font-size: 19px;
  color: var(--indigo-deep);
}
.tour-summary .summary-grid {
  display: grid;
  grid-template-columns: 110px 1fr;
  gap: 6px 16px;
  font-size: 14px;
}
.tour-summary .summary-grid dt { color: var(--muted); }
.tour-summary .summary-grid dd { margin: 0; font-weight: 500; }
.tour-summary .price { color: var(--vermillion); font-weight: 700; font-size: 16px; }

/* ===== Form ===== */
form { display: block; }

fieldset {
  background: var(--paper-2);
  border: 1px solid var(--border);
  border-radius: 4px;
  margin: 0 0 18px;
  padding: 20px 24px 22px;
}
legend {
  font-size: 15px;
  font-weight: 700;
  color: var(--indigo-deep);
  background: var(--paper-2);
  padding: 0 8px 0 10px;
  border-left: 3px solid var(--vermillion);
  margin-left: -10px;
}
fieldset .desc {
  font-size: 13px;
  color: var(--muted);
  margin: 6px 0 16px;
}

.field-row {
  display: grid;
  grid-template-columns: 180px 1fr;
  gap: 10px 16px;
  align-items: start;
  padding: 10px 0;
  border-top: 1px dotted var(--border);
}
.field-row:first-of-type { border-top: none; }

.field-row .label {
  font-size: 14px;
  padding-top: 6px;
  color: var(--ink-soft);
}
.field-row .badge-required,
.consent-list .badge-required {
  display: inline-block;
  background: var(--vermillion);
  color: #fff;
  font-size: 10px;
  font-weight: 700;
  padding: 1px 6px;
  border-radius: 3px;
  margin-left: 6px;
  vertical-align: 2px;
}
.field-row .badge-optional {
  display: inline-block;
  background: var(--bg-alt);
  color: var(--muted);
  font-size: 10px;
  padding: 1px 6px;
  border-radius: 3px;
  margin-left: 6px;
  vertical-align: 2px;
  border: 1px solid var(--border);
}

.field-row .field input[type="text"],
.field-row .field input[type="tel"],
.field-row .field input[type="email"],
.field-row .field input[type="number"],
.field-row .field input[type="date"],
.field-row .field select,
.field-row .field textarea {
  width: 100%;
  padding: 8px 10px;
  font-size: 14px;
  font-family: inherit;
  border: 1px solid var(--border-strong);
  border-radius: 3px;
  background: #fff;
  color: var(--ink);
}
.field-row .field input:focus,
.field-row .field select:focus,
.field-row .field textarea:focus {
  /* High-contrast mode で box-shadow が無効化された時のフォールバック outline(WCAG 2.4.7) */
  outline: 2px solid transparent;
  outline-offset: 1px;
  border-color: var(--indigo-deep);
  box-shadow: 0 0 0 2px rgba(13,36,71,0.15);
}
.field-row .field input:focus-visible,
.field-row .field select:focus-visible,
.field-row .field textarea:focus-visible {
  outline: 2px solid var(--indigo-deep);
  outline-offset: 1px;
}
/* 同意 checkbox 群へのフォーカスも明示 */
.consent-list label input[type="checkbox"]:focus-visible {
  outline: 2px solid var(--indigo-deep);
  outline-offset: 3px;
}
.field-row .field textarea { resize: vertical; min-height: 60px; }

.field-row .field .inline-group {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  align-items: center;
}
.field-row .field .inline-group label {
  font-size: 14px;
  display: inline-flex;
  align-items: center;
  gap: 5px;
  cursor: pointer;
}
.field-row .field .hint {
  font-size: 12px;
  color: var(--muted);
  margin-top: 4px;
  display: block;
}
.field-row .field .name-pair {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 8px;
}
.field-row .field .zip-row {
  display: flex;
  gap: 8px;
  align-items: center;
}
.field-row .field .zip-row input { max-width: 140px; }

/* 入力幅ユーティリティ(旧 inline style 置換) */
.input-w-date { max-width: 200px; }
.input-w-select { max-width: 360px; }
.input-w-relation { max-width: 280px; }
.input-w-headcount { width: 64px; }

.field-row.error .field input,
.field-row.error .field select,
.field-row.error .field textarea {
  border-color: var(--error);
  background: #fff7f6;
}
.field-row .error-msg {
  display: none;
  color: var(--error);
  font-size: 12px;
  margin-top: 4px;
}
.field-row.error .error-msg { display: block; }

/* ===== Companion 動的追加 ===== */
.companion {
  background: var(--bg-alt);
  border: 1px solid var(--border);
  border-radius: 4px;
  padding: 14px 18px;
  margin-bottom: 12px;
  position: relative;
}
.companion .companion-head {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 8px;
}
.companion .companion-num {
  font-weight: 700;
  color: var(--indigo-deep);
}
.companion .remove-companion {
  background: none;
  border: 1px solid var(--border-strong);
  color: var(--muted);
  padding: 3px 10px;
  border-radius: 3px;
  font-size: 12px;
  cursor: pointer;
}
.companion .remove-companion:hover {
  background: var(--vermillion);
  color: #fff;
  border-color: var(--vermillion);
}
.companion-empty {
  font-size: 13px;
  color: var(--muted);
  padding: 12px;
  text-align: center;
  border: 1px dashed var(--border-strong);
  border-radius: 4px;
}

#add-companion {
  display: inline-block;
  margin-top: 10px;
  background: #fff;
  color: var(--indigo-deep);
  border: 1px solid var(--indigo-deep);
  padding: 8px 18px;
  border-radius: 3px;
  font-size: 14px;
  cursor: pointer;
  font-weight: 500;
}
#add-companion:hover { background: var(--indigo-deep); color: #fff; }
#add-companion:disabled {
  opacity: 0.5;
  cursor: not-allowed;
  background: #fff;
  color: var(--muted);
  border-color: var(--border-strong);
}

/* ===== Price Estimate ===== */
.price-box {
  background: var(--paper-2);
  border: 2px solid var(--gold);
  border-radius: 4px;
  padding: 18px 22px;
  margin-bottom: 18px;
}
.price-box h3 {
  margin: 0 0 12px;
  font-size: 15px;
  color: var(--indigo-deep);
}
.price-box .price-line {
  display: flex;
  justify-content: space-between;
  font-size: 14px;
  padding: 4px 0;
  border-bottom: 1px dotted var(--border);
}
.price-box .price-total {
  font-weight: 700;
  font-size: 17px;
  color: var(--vermillion);
  border-top: 2px solid var(--ink);
  border-bottom: none;
  padding-top: 10px;
  margin-top: 6px;
}
.price-box .note { font-size: 12px; color: var(--muted); margin-top: 8px; }

/* ===== Cancellation Table ===== */
.cancellation-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 13px;
  margin: 6px 0 12px;
}
.cancellation-table th,
.cancellation-table td {
  border: 1px solid var(--border-strong);
  padding: 6px 10px;
  text-align: left;
}
.cancellation-table thead {
  background: var(--indigo-deep);
  color: #fff;
}
.cancellation-table tbody tr:nth-child(even) { background: var(--bg-alt); }
.cancellation-table .col-when { width: 50%; }

/* ===== Consent ===== */
.consent-list label {
  display: flex;
  gap: 8px;
  align-items: flex-start;
  padding: 8px 0;
  border-top: 1px dotted var(--border);
  font-size: 14px;
  cursor: pointer;
}
.consent-list label:first-child { border-top: none; }
.consent-list input[type="checkbox"] { margin-top: 5px; flex-shrink: 0; transform: scale(1.2); }
.consent-list .hint-inline {
  font-size: 12px;
  color: var(--muted);
  display: inline;
}

/* ===== Remarks textarea ===== */
.remarks-textarea {
  width: 100%;
  padding: 10px 12px;
  font-family: inherit;
  font-size: 14px;
  border: 1px solid var(--border-strong);
  border-radius: 3px;
  resize: vertical;
}

/* ===== Submit ===== */
.submit-area {
  text-align: center;
  margin: 28px 0 8px;
}
#submit-btn {
  background: var(--vermillion);
  color: #fff;
  border: none;
  padding: 16px 48px;
  font-size: 17px;
  font-weight: 700;
  border-radius: 4px;
  cursor: pointer;
  box-shadow: 0 4px 12px rgba(216,70,47,0.3);
  font-family: inherit;
}
#submit-btn:hover { background: var(--vermillion-deep); }
#submit-btn:disabled {
  background: var(--border-strong);
  color: #fff;
  cursor: not-allowed;
  box-shadow: none;
}
.submit-note {
  font-size: 12px;
  color: var(--muted);
  margin-top: 12px;
  line-height: 1.6;
}
.submit-error {
  display: none;
  background: #fff7f6;
  border: 1px solid var(--error);
  color: var(--error);
  padding: 10px 14px;
  margin: 12px 0 0;
  font-size: 13px;
  border-radius: 3px;
}
.submit-error.show { display: block; }

/* ===== Thanks ===== */
.thanks-section {
  display: none;
  background: var(--paper-2);
  border: 2px solid var(--success);
  border-radius: 6px;
  padding: 34px 28px;
  text-align: center;
}
.thanks-section.show { display: block; }
.thanks-section .thanks-icon {
  font-size: 42px;
  color: var(--success);
  margin-bottom: 10px;
}
.thanks-section h2 {
  margin: 0 0 14px;
  color: var(--indigo-deep);
  font-size: 22px;
}
.thanks-section .thanks-body {
  font-size: 15px;
  line-height: 1.8;
  margin: 0 0 14px;
}
.thanks-section .thanks-meta {
  font-size: 13px;
  color: var(--muted);
  margin: 14px 0 0;
}
.thanks-section .receipt-id {
  font-family: monospace;
  font-weight: 700;
  color: var(--indigo-deep);
}
.thanks-section .back-to-top {
  margin-top: 22px;
}
.thanks-section .back-to-top a {
  color: var(--indigo-deep);
  font-weight: 600;
}

/* ===== Footer ===== */
.business-info {
  background: var(--paper-2);
  border: 1px solid var(--border);
  border-radius: 4px;
  padding: 18px 22px;
  margin-top: 24px;
  font-size: 13px;
  line-height: 1.8;
}
.business-info h3 {
  margin: 0 0 10px;
  font-size: 14px;
  color: var(--indigo-deep);
  border-bottom: 1px solid var(--border);
  padding-bottom: 6px;
}
.business-info dl {
  display: grid;
  grid-template-columns: 130px 1fr;
  gap: 4px 12px;
  margin: 0;
}
.business-info dt { color: var(--muted); font-weight: normal; }
.business-info dd { margin: 0; }
.business-info .note {
  font-size: 12px;
  color: var(--muted);
  margin-top: 12px;
}

/* ===== Responsive ===== */
@media (max-width: 640px) {
  body { font-size: 14px; }
  main { padding: 16px 12px 40px; }
  fieldset { padding: 16px 14px 18px; }
  .field-row {
    grid-template-columns: 1fr;
    gap: 6px;
  }
  .field-row .label { padding-top: 0; font-weight: 600; }
  .field-row .field .name-pair { grid-template-columns: 1fr; }
  .tour-summary .summary-grid { grid-template-columns: 90px 1fr; }
  .business-info dl { grid-template-columns: 1fr; }
  .business-info dt { margin-top: 8px; }
  #submit-btn { width: 100%; padding: 16px 20px; }
}

/* ===== Capacity Banner(参加人数 fieldset 内、残席表示) ===== */
.capacity-banner {
  background: #f1f8f1;
  border-left: 4px solid #1d7a44;
  padding: 12px 16px;
  margin: 0 0 12px;
  font-weight: 600;
  color: #1d4a26;
  border-radius: 0 4px 4px 0;
  font-size: 14px;
}
.capacity-banner.is-low {
  background: #fff8e8;
  border-left-color: #c98a00;
  color: #6a4a00;
}
.capacity-banner.is-closed {
  background: #fbecec;
  border-left-color: #b32a2a;
  color: #7a1818;
}
.capacity-banner[hidden] {
  display: none !important;
}
.capacity-exceed-msg[hidden] {
  display: none !important;
}
.capacity-exceed-msg.show {
  display: block;
  color: #b32a2a;
  font-weight: 600;
  margin-top: 8px;
}

/* ===== Capacity Reject Page(index.php capacity_gate_reject() 出力) ===== */
.capacity-reject {
  max-width: 640px;
  margin: 80px auto;
  padding: 24px;
  text-align: center;
}
.capacity-reject h1 {
  color: #b32a2a;
  font-size: 22px;
  margin: 0 0 20px;
}
.capacity-reject-msg {
  font-size: 16px;
  line-height: 1.7;
  margin: 0 0 32px;
  padding: 16px;
  background: #fbecec;
  border-left: 4px solid #b32a2a;
  border-radius: 0 4px 4px 0;
  text-align: left;
  color: #5a1818;
}
.capacity-reject-actions {
  display: flex;
  gap: 12px;
  justify-content: center;
  flex-wrap: wrap;
}
.capacity-reject .btn-back-input,
.capacity-reject .btn-back-lp {
  display: inline-block;
  padding: 12px 24px;
  background: #1a2845;
  color: #fff;
  text-decoration: none;
  border-radius: 4px;
  font-weight: 600;
  font-size: 14px;
}
.capacity-reject .btn-back-lp {
  background: #6b7280;
}
.capacity-reject .btn-back-input:hover,
.capacity-reject .btn-back-lp:hover {
  opacity: 0.85;
}