:root {
  --teal: #0f766e;
  --teal-dark: #115e59;
  --bg: #f1f5f9;
  --card: #ffffff;
  --text: #0f172a;
  --muted: #64748b;
  --border: #e2e8f0;
  --danger: #dc2626;
  --ok: #16a34a;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "Hiragino Kaku Gothic ProN",
    "Noto Sans JP", Meiryo, sans-serif;
  background: var(--bg);
  color: var(--text);
  -webkit-font-smoothing: antialiased;
}

.app-header {
  position: sticky;
  top: 0;
  z-index: 10;
  background: var(--teal);
  color: #fff;
  padding: env(safe-area-inset-top) 0 0;
}

.app-header h1 {
  margin: 0;
  padding: 14px 16px 8px;
  font-size: 1.25rem;
}

.tabs {
  display: flex;
  gap: 4px;
  padding: 0 8px;
}

.tab {
  flex: 1;
  border: none;
  background: transparent;
  color: rgba(255, 255, 255, 0.7);
  padding: 12px 8px;
  font-size: 0.95rem;
  font-weight: 600;
  border-bottom: 3px solid transparent;
  cursor: pointer;
}

.tab.is-active {
  color: #fff;
  border-bottom-color: #fff;
}

main {
  max-width: 640px;
  margin: 0 auto;
  padding: 16px 16px calc(24px + env(safe-area-inset-bottom));
}

.view { display: none; }
.view.is-active { display: block; }

.card {
  background: var(--card);
  border-radius: 14px;
  padding: 16px;
  margin-bottom: 16px;
  box-shadow: 0 1px 2px rgba(15, 23, 42, 0.06);
}

.card h2 {
  margin: 0 0 12px;
  font-size: 1.05rem;
}

.field {
  display: block;
  margin-bottom: 14px;
}

.field-label {
  display: block;
  font-size: 0.85rem;
  color: var(--muted);
  margin-bottom: 6px;
  font-weight: 600;
}

.req {
  color: var(--danger);
  font-size: 0.72rem;
  margin-left: 4px;
}

input, select, textarea {
  width: 100%;
  padding: 12px;
  font-size: 1rem;
  border: 1px solid var(--border);
  border-radius: 10px;
  background: #fff;
  color: var(--text);
  font-family: inherit;
}

input:focus, select:focus, textarea:focus {
  outline: none;
  border-color: var(--teal);
  box-shadow: 0 0 0 3px rgba(15, 118, 110, 0.15);
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  width: 100%;
  padding: 14px;
  font-size: 1rem;
  font-weight: 700;
  border: none;
  border-radius: 12px;
  cursor: pointer;
  transition: transform 0.05s ease, background 0.15s ease;
}

.btn:active { transform: scale(0.99); }

.btn-primary {
  background: var(--teal);
  color: #fff;
}
.btn-primary:hover { background: var(--teal-dark); }
.btn-primary:disabled { opacity: 0.6; cursor: default; }

.btn-secondary {
  background: #fff;
  color: var(--teal-dark);
  border: 2px solid var(--teal);
}
.btn-secondary:disabled { opacity: 0.6; cursor: default; }

.btn-row {
  display: flex;
  gap: 10px;
}
.btn-row .btn { flex: 1; }

.btn-ghost {
  background: #f8fafc;
  color: var(--teal-dark);
  border: 1px solid var(--border);
  margin-bottom: 14px;
}

.location-row {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 14px;
  flex-wrap: wrap;
}
.location-row .btn { width: auto; flex: none; margin: 0; }

.muted { color: var(--muted); font-size: 0.85rem; }

.message {
  margin: 12px 0 0;
  font-size: 0.9rem;
  min-height: 1.2em;
}
.message.ok { color: var(--ok); }
.message.error { color: var(--danger); }

.places-list { display: flex; flex-direction: column; gap: 10px; }

.place-item {
  border: 1px solid var(--border);
  border-radius: 12px;
  overflow: hidden;
}

.place-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
  padding: 12px 14px;
  background: #f8fafc;
}

.place-name { font-weight: 700; }
.place-desc { font-size: 0.82rem; color: var(--muted); }

.badge {
  background: var(--teal);
  color: #fff;
  border-radius: 999px;
  padding: 2px 10px;
  font-size: 0.8rem;
  font-weight: 700;
  white-space: nowrap;
}

.checkin-list {
  list-style: none;
  margin: 0;
  padding: 0;
  border-top: 1px solid var(--border);
}

.checkin-list li {
  padding: 10px 14px;
  border-bottom: 1px solid var(--border);
  font-size: 0.88rem;
}
.checkin-list li:last-child { border-bottom: none; }

.checkin-meta { color: var(--muted); font-size: 0.78rem; margin-top: 2px; }

.empty { color: var(--muted); font-size: 0.9rem; padding: 4px 0; }

/* ディープリンク（QR/NFC で来たときの案内） */
.banner {
  background: #ecfdf5;
  border: 1px solid #a7f3d0;
  color: #065f46;
  border-radius: 12px;
  padding: 12px 14px;
  margin-bottom: 16px;
  font-size: 0.92rem;
  font-weight: 600;
}
.banner-warn {
  background: #fef2f2;
  border-color: #fecaca;
  color: #991b1b;
}

/* 管理側: 場所ごとの操作チップ */
.place-actions {
  display: flex;
  gap: 8px;
  padding: 10px 14px;
  border-top: 1px solid var(--border);
  flex-wrap: wrap;
}

.chip {
  border: 1px solid var(--border);
  background: #fff;
  color: var(--teal-dark);
  border-radius: 999px;
  padding: 6px 12px;
  font-size: 0.82rem;
  font-weight: 700;
  cursor: pointer;
}
.chip:active { transform: scale(0.98); }

/* QR / タグパネル */
.qr-panel {
  padding: 14px;
  border-top: 1px solid var(--border);
  background: #f8fafc;
}
.qr-img {
  width: 200px;
  max-width: 100%;
  margin: 0 auto 10px;
}
.qr-img svg { width: 100%; height: auto; display: block; }
.qr-hint {
  font-size: 0.8rem;
  color: var(--muted);
  margin: 6px 0;
}
.url-row {
  display: flex;
  gap: 8px;
  align-items: center;
}
.url-input {
  flex: 1;
  min-width: 0;
  font-size: 0.82rem;
  padding: 8px 10px;
}