:root {
  --bg: #f8fafc;
  --fg: #0f172a;
  --muted: #64748b;
  --accent: #0ea5e9;
  --accent-strong: #0369a1;
  --border: #e2e8f0;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  background: radial-gradient(circle at 20% 20%, #f1f5f9, #f8fafc);
  font-family: "Noto Sans JP", "Inter", system-ui, sans-serif;
  color: var(--fg);
}

.shell {
  max-width: 1040px;
  margin: 32px auto 48px;
  padding: 0 16px;
}

header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 24px;
}

.title {
  font-weight: 700;
  font-size: 20px;
}

.status {
  color: var(--muted);
  font-size: 13px;
}

.badge {
  padding: 6px 10px;
  border-radius: 999px;
  background: var(--accent);
  color: white;
  font-size: 12px;
}

.tabs {
  display: flex;
  gap: 8px;
  margin-bottom: 12px;
}

.tab {
  padding: 10px 14px;
  border-radius: 10px;
  border: 1px solid var(--border);
  background: white;
  cursor: pointer;
  font-weight: 600;
}

.tab.active {
  background: var(--accent);
  color: white;
  border-color: var(--accent);
}

section.card {
  background: white;
  border: 1px solid var(--border);
  border-radius: 14px;
  padding: 16px;
  margin-bottom: 16px;
  box-shadow: 0 8px 24px rgba(15, 23, 42, 0.04);
}

label {
  display: block;
  font-weight: 600;
  margin-bottom: 6px;
  font-size: 14px;
}

textarea {
  width: 100%;
  min-height: 140px;
  padding: 12px;
  border: 1px solid var(--border);
  border-radius: 12px;
  font-size: 14px;
  resize: vertical;
}

input[type="text"],
input[type="number"],
input[type="datetime-local"] {
  width: 100%;
  padding: 10px 12px;
  border: 1px solid var(--border);
  border-radius: 10px;
  font-size: 14px;
}

.grid {
  display: grid;
  gap: 12px;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  margin-top: 10px;
}

.controls {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
  margin-top: 12px;
}

button {
  border: none;
  border-radius: 10px;
  padding: 10px 14px;
  font-weight: 600;
  cursor: pointer;
  background: var(--fg);
  color: white;
  transition: transform 0.05s ease, box-shadow 0.1s ease;
}

button.secondary {
  background: #e2e8f0;
  color: var(--fg);
}

button:active {
  transform: translateY(1px);
  box-shadow: 0 4px 10px rgba(15, 23, 42, 0.12);
}

.results .item {
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 12px;
  margin-top: 10px;
  background: white;
}

.toast {
  padding: 10px 12px;
  border-radius: 10px;
  margin-bottom: 8px;
  border: 1px solid var(--border);
  background: #ecfeff;
  color: var(--accent-strong);
  font-size: 13px;
}

footer {
  margin-top: 18px;
  color: var(--muted);
  font-size: 12px;
  text-align: right;
}

.panel-toggle {
  position: fixed;
  top: 24px;
  right: 24px;
  z-index: 20;
}

.sidepanel {
  position: fixed;
  top: 0;
  right: 0;
  height: 100vh;
  width: 320px;
  background: white;
  border-left: 1px solid var(--border);
  box-shadow: -12px 0 30px rgba(15, 23, 42, 0.08);
  transform: translateX(100%);
  transition: transform 180ms ease-out;
  z-index: 30;
  display: flex;
  flex-direction: column;
}

.sidepanel.open {
  transform: translateX(0);
}

.panel-header {
  padding: 16px;
  border-bottom: 1px solid var(--border);
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.panel-body {
  padding: 12px 16px 24px;
  overflow-y: auto;
}

.table-list {
  list-style: none;
  padding: 0;
  margin: 0;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.table-item {
  padding: 10px 12px;
  border: 1px solid var(--border);
  border-radius: 10px;
  cursor: pointer;
}

.table-item.active {
  border-color: var(--accent);
  background: #e0f2fe;
  color: var(--accent-strong);
}

.overlay {
  position: fixed;
  inset: 0;
  background: rgba(15, 23, 42, 0.28);
  opacity: 0;
  pointer-events: none;
  transition: opacity 160ms ease-out;
  z-index: 25;
}

.overlay.open {
  opacity: 1;
  pointer-events: auto;
}