:root {
  --primary-color: #2563eb;
  --primary-hover: #1d4ed8;
  --secondary-color: #4b5563;
  --secondary-hover: #374151;
  --bg-color: #f8fafc;
  --card-bg: #ffffff;
  --text-main: #1e293b;
  --text-muted: #64748b;
  --border-color: #e2e8f0;
  --danger-color: #ef4444;
  --danger-bg: #fef2f2;
  --success-color: #10b981;
  --radius: 8px;
  --shadow: 0 4px 6px -1px rgb(0 0 0 / 0.1), 0 2px 4px -2px rgb(0 0 0 / 0.1);
}

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

body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  background-color: var(--bg-color);
  color: var(--text-main);
  line-height: 1.5;
  padding: 20px 16px;
}

.container {
  max-width: 540px;
  margin: 0 auto;
}

header {
  text-align: center;
  margin-bottom: 24px;
}

.system-meta {
  font-size: 0.75rem;
  color: var(--text-muted);
  margin-bottom: 8px;
  background-color: #f1f5f9;
  display: inline-block;
  padding: 2px 10px;
  border-radius: 12px;
}

h1 {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--text-main);
  margin-bottom: 6px;
}

.subtitle {
  font-size: 0.875rem;
  color: var(--text-muted);
}

.card {
  background-color: var(--card-bg);
  border-radius: var(--radius);
  border: 1px solid var(--border-color);
  box-shadow: var(--shadow);
  padding: 24px;
  margin-bottom: 20px;
}

.form-group {
  margin-bottom: 20px;
}

.form-group:last-child {
  margin-bottom: 0;
}

label {
  display: block;
  font-weight: 600;
  font-size: 0.95rem;
  margin-bottom: 8px;
  color: var(--text-main);
}

.input-row {
  display: flex;
  gap: 12px;
}

.input-col {
  flex: 1;
}

.input-col label {
  font-size: 0.825rem;
  color: var(--text-muted);
  margin-bottom: 4px;
}

input[type="number"],
input[type="text"] {
  width: 100%;
  padding: 10px 12px;
  font-size: 1rem;
  border: 1px solid var(--border-color);
  border-radius: var(--radius);
  background-color: #fff;
  color: var(--text-main);
  transition: border-color 0.15s ease, box-shadow 0.15s ease;
}

input[type="number"]:focus,
input[type="text"]:focus {
  outline: none;
  border-color: var(--primary-color);
  box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.15);
}

.input-addon-group {
  display: flex;
  align-items: center;
}

.input-addon-group input {
  border-top-right-radius: 0;
  border-bottom-right-radius: 0;
}

.addon-text {
  background-color: #f1f5f9;
  border: 1px solid var(--border-color);
  border-left: none;
  padding: 10px 16px;
  font-weight: 600;
  font-size: 0.95rem;
  color: var(--text-muted);
  border-top-right-radius: var(--radius);
  border-bottom-right-radius: var(--radius);
}

/* 郵便番号入力グループ */
.zip-input-container {
  margin-bottom: 6px;
}

.input-hint {
  font-size: 0.85rem;
  color: #b91c1c;
  margin-bottom: 6px;
}

.zip-input-group {
  display: flex;
  gap: 10px;
  align-items: stretch;
}

#input-zipcode {
  width: 100%;
  min-width: 180px;
  border: 2px solid #2563eb; /* 入力欄とわかりやすいブルーの太めの枠線 */
  border-radius: var(--radius);
  background-color: #ffffff;
  color: var(--text-main);
  font-size: 1.25rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  padding: 12px 16px;
  transition: border-color 0.15s ease, box-shadow 0.15s ease;
}

#input-zipcode:focus {
  outline: none;
  border-color: #1d4ed8;
  box-shadow: 0 0 0 4px rgba(37, 99, 235, 0.25);
}

.btn-inline {
  width: auto;
  min-width: 90px;
  padding: 12px 24px;
  font-size: 1rem;
  font-weight: 600;
  white-space: nowrap;
}

.start-location-badge {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-top: 10px;
  padding: 8px 12px;
  background-color: #f0fdf4;
  border: 1px solid #bbf7d0;
  border-radius: var(--radius);
  font-size: 0.875rem;
  color: #166534;
  font-weight: 500;
}

.start-location-badge .badge-icon {
  font-size: 1rem;
}

.divider {
  display: flex;
  align-items: center;
  text-align: center;
  margin: 16px 0;
  color: var(--text-muted);
  font-size: 0.8rem;
}

.divider::before,
.divider::after {
  content: "";
  flex: 1;
  border-bottom: 1px solid var(--border-color);
}

.divider span {
  padding: 0 10px;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 100%;
  padding: 12px 16px;
  font-size: 1rem;
  font-weight: 600;
  border-radius: var(--radius);
  border: none;
  cursor: pointer;
  transition: background-color 0.15s ease, transform 0.05s ease;
  text-decoration: none;
}

.btn:active {
  transform: translateY(1px);
}

.btn-primary {
  background-color: var(--primary-color);
  color: #fff;
}

.btn-primary:hover {
  background-color: var(--primary-hover);
}

.btn-secondary {
  background-color: #f1f5f9;
  color: var(--text-main);
  border: 1px solid var(--border-color);
}

.btn-secondary:hover {
  background-color: #e2e8f0;
}

.btn-success {
  background-color: #10b981;
  color: #fff;
}

.btn-success:hover {
  background-color: #059669;
}

.btn-map {
  font-size: 0.9rem;
  padding: 10px 14px;
}

.btn-group {
  display: flex;
  flex-direction: column;
  gap: 10px;
  margin-top: 18px;
}

@media (min-width: 480px) {
  .btn-group {
    flex-direction: row;
  }
}

.alert {
  padding: 12px 14px;
  border-radius: var(--radius);
  font-size: 0.875rem;
  margin-bottom: 16px;
  display: none;
}

.alert-danger {
  background-color: var(--danger-bg);
  color: var(--danger-color);
  border: 1px solid #fecaca;
}

.alert-info {
  background-color: #eff6ff;
  color: #1d4ed8;
  border: 1px solid #bfdbfe;
}

.status-indicator {
  font-size: 0.825rem;
  color: var(--text-muted);
  margin-top: 6px;
  min-height: 1.2em;
}

/* 結果表示エリア */
.result-card {
  display: none;
  border-top: 4px solid var(--primary-color);
}

.result-header {
  font-size: 1.15rem;
  font-weight: 700;
  margin-bottom: 16px;
  padding-bottom: 8px;
  border-bottom: 1px solid var(--border-color);
  color: var(--text-main);
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.result-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 12px;
  margin-bottom: 20px;
}

@media (min-width: 400px) {
  .result-grid {
    grid-template-columns: 1fr 1fr;
  }
}

.result-item {
  background-color: #f8fafc;
  padding: 10px 12px;
  border-radius: var(--radius);
  border: 1px solid var(--border-color);
}

.result-label {
  font-size: 0.775rem;
  color: var(--text-muted);
  margin-bottom: 2px;
}

.result-value {
  font-size: 1.05rem;
  font-weight: 600;
  color: var(--text-main);
  word-break: break-all;
}

.result-value.highlight {
  color: var(--primary-color);
}

.btn-retry {
  margin-top: 14px;
  background-color: #f8fafc;
  color: var(--text-main);
  border: 1px solid var(--border-color);
}

.btn-retry:hover {
  background-color: #e2e8f0;
}

/* 目的地タイプ選択セレクトボックス */
.form-select {
  width: 100%;
  padding: 10px 12px;
  font-size: 0.95rem;
  border: 1px solid var(--border-color);
  border-radius: var(--radius);
  background-color: #fff;
  color: var(--text-main);
  outline: none;
  cursor: pointer;
  transition: border-color 0.2s, box-shadow 0.2s;
}

.form-select:focus {
  border-color: var(--primary-color);
  box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.15);
}

/* スポット情報カード */
.spot-card {
  background: linear-gradient(135deg, #f0fdf4 0%, #e0f2fe 100%);
  border: 1px solid #bae6fd;
  border-radius: var(--radius);
  padding: 16px;
  margin-bottom: 18px;
}

.spot-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 8px;
}

.badge {
  font-size: 0.75rem;
  font-weight: 700;
  padding: 3px 8px;
  border-radius: 4px;
  background-color: #0284c7;
  color: #ffffff;
}

.badge.badge-station {
  background-color: #059669;
}

.badge.badge-tourism {
  background-color: #d97706;
}

.badge.badge-shopping {
  background-color: #7c3aed;
}

.spot-dist-sub {
  font-size: 0.8rem;
  color: var(--text-muted);
}

.spot-title {
  font-size: 1.25rem;
  font-weight: 700;
  color: #0f172a;
  margin-bottom: 4px;
}

.spot-detail {
  font-size: 0.85rem;
  color: #475569;
  line-height: 1.4;
}

/* スポット読み込み中スピナー */
.spot-loading {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  padding: 14px;
  margin-bottom: 18px;
  background-color: #f8fafc;
  border: 1px dashed var(--border-color);
  border-radius: var(--radius);
  font-size: 0.875rem;
  color: var(--text-muted);
}

.spinner {
  width: 18px;
  height: 18px;
  border: 2px solid #cbd5e1;
  border-top-color: var(--primary-color);
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
}

@keyframes spin {
  to {
    transform: rotate(360deg);
  }
}