:root {
  color-scheme: light;
  --bg: #f7f5f0;
  --surface: #ffffff;
  --surface-muted: #f2efe8;
  --text: #202124;
  --muted: #6a665f;
  --line: #ddd6c9;
  --primary: #1f6f78;
  --primary-strong: #185963;
  --success: #167245;
  --danger: #b73535;
  --warning: #9a6218;
  --shadow: 0 12px 30px rgba(57, 48, 35, 0.08);
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: Inter, "Noto Sans TC", system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  line-height: 1.5;
}

button,
input,
textarea {
  font: inherit;
}

button {
  cursor: pointer;
}

.app-shell {
  width: min(1120px, calc(100% - 32px));
  margin: 0 auto;
  padding: 32px 0 48px;
}

.topbar {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 16px;
  margin-bottom: 22px;
}

.eyebrow {
  margin: 0 0 6px;
  color: var(--muted);
  font-size: 0.9rem;
}

h1 {
  margin: 0;
  font-size: clamp(1.6rem, 3vw, 2.4rem);
  letter-spacing: 0;
}

h2 {
  margin: 0;
  font-size: 1.15rem;
  letter-spacing: 0;
}

p {
  margin: 0;
}

.stack {
  display: grid;
  gap: 16px;
}

.panel {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 8px;
  box-shadow: var(--shadow);
  padding: 22px;
}

.auth-panel {
  max-width: 460px;
  margin: 12vh auto 0;
}

.form-grid {
  display: grid;
  gap: 12px;
  margin-top: 18px;
}

label {
  display: grid;
  gap: 6px;
  color: var(--muted);
  font-size: 0.92rem;
}

input,
textarea {
  width: 100%;
  border: 1px solid var(--line);
  border-radius: 6px;
  background: #fff;
  color: var(--text);
  padding: 10px 12px;
}

textarea {
  min-height: 84px;
  resize: vertical;
}

.button-row {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  align-items: center;
}

.btn {
  border: 1px solid var(--line);
  border-radius: 6px;
  background: var(--surface);
  color: var(--text);
  min-height: 40px;
  padding: 9px 14px;
}

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

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

.btn-success {
  border-color: var(--success);
  color: var(--success);
}

.btn-danger {
  border-color: var(--danger);
  color: var(--danger);
}

.btn-ghost {
  background: transparent;
}

.muted {
  color: var(--muted);
}

.error {
  color: var(--danger);
}

.success {
  color: var(--success);
}

.summary-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 12px;
  margin: 18px 0 0;
}

.metric {
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--surface-muted);
  padding: 14px;
}

.metric strong {
  display: block;
  font-size: 1.35rem;
}

.respondent-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
  gap: 12px;
}

.item-list {
  display: grid;
  gap: 14px;
}

.item-card {
  display: grid;
  gap: 16px;
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 18px;
}

.item-header {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 12px;
}

.item-code {
  display: inline-flex;
  align-items: center;
  min-height: 28px;
  border-radius: 999px;
  background: var(--surface-muted);
  color: var(--muted);
  padding: 3px 10px;
  font-size: 0.86rem;
  white-space: nowrap;
}

.badge {
  display: inline-flex;
  align-items: center;
  min-height: 28px;
  border-radius: 999px;
  border: 1px solid var(--line);
  padding: 3px 10px;
  font-size: 0.86rem;
  white-space: nowrap;
}

.badge-pending {
  color: var(--muted);
}

.badge-passed {
  border-color: rgba(22, 114, 69, 0.32);
  background: rgba(22, 114, 69, 0.08);
  color: var(--success);
}

.badge-failed {
  border-color: rgba(183, 53, 53, 0.32);
  background: rgba(183, 53, 53, 0.08);
  color: var(--danger);
}

.badge-paused {
  border-color: rgba(154, 98, 24, 0.32);
  background: rgba(154, 98, 24, 0.08);
  color: var(--warning);
}

.copy-block,
.content-block {
  display: grid;
  gap: 8px;
}

.content-label {
  color: var(--muted);
  font-size: 0.86rem;
}

.markdown {
  white-space: pre-wrap;
}

.admin-grid {
  display: grid;
  gap: 14px;
}

.admin-list-row {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 12px;
  align-items: center;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--surface);
  padding: 16px;
}

.filters {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.hidden {
  display: none !important;
}

@media (max-width: 720px) {
  .app-shell {
    width: min(100% - 20px, 1120px);
    padding-top: 20px;
  }

  .topbar,
  .item-header,
  .admin-list-row {
    display: grid;
  }

  .summary-grid,
  .respondent-grid {
    grid-template-columns: 1fr;
  }
}