update_xlsx/public/styles.css

:root {
  --bg: #f4f6f9;
  --surface: #ffffff;
  --text: #1a2332;
  --muted: #5c6b7a;
  --border: #e2e8f0;
  --primary: #2563eb;
  --primary-hover: #1d4ed8;
  --success: #059669;
  --success-bg: #ecfdf5;
  --warning: #d97706;
  --warning-bg: #fffbeb;
  --error: #dc2626;
  --error-bg: #fef2f2;
  --updated: #7c3aed;
  --updated-bg: #f5f3ff;
  --radius: 12px;
  --shadow: 0 4px 24px rgba(15, 23, 42, 0.06);
  font-family:
    system-ui,
    -apple-system,
    "Segoe UI",
    Roboto,
    sans-serif;
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  line-height: 1.5;
  min-height: 100vh;
}

.page {
  max-width: 960px;
  margin: 0 auto;
  padding: 2rem 1.25rem 3rem;
}

.header {
  margin-bottom: 2rem;
}

.eyebrow {
  margin: 0 0 0.5rem;
  font-size: 0.8rem;
  font-weight: 600;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--primary);
}

.header h1 {
  margin: 0 0 0.5rem;
  font-size: clamp(1.5rem, 4vw, 2rem);
  font-weight: 700;
  letter-spacing: -0.02em;
}

.subtitle {
  margin: 0;
  color: var(--muted);
  max-width: 36rem;
}

.subtitle code {
  font-size: 0.9em;
  background: var(--border);
  padding: 0.1em 0.4em;
  border-radius: 4px;
}

.main {
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
}

.card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.5rem;
  box-shadow: var(--shadow);
}

.card h2 {
  margin: 0 0 1rem;
  font-size: 1.1rem;
}

#health-banner.banner-warn {
  background: var(--warning-bg);
  border-color: #fcd34d;
}

#health-banner.banner-ok {
  background: var(--success-bg);
  border-color: #6ee7b7;
}

.banner-text {
  margin: 0;
  font-size: 0.9rem;
}

.upload-zone {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.5rem;
  padding: 2rem 1.5rem;
  border: 2px dashed var(--border);
  border-radius: var(--radius);
  cursor: pointer;
  transition:
    border-color 0.15s,
    background 0.15s;
  text-align: center;
}

.upload-zone:hover,
.upload-zone.dragover {
  border-color: var(--primary);
  background: #eff6ff;
}

.upload-icon {
  font-size: 2rem;
}

.upload-title {
  font-weight: 600;
}

.upload-hint,
.file-name {
  font-size: 0.875rem;
  color: var(--muted);
}

.file-name {
  margin-top: 0.25rem;
}

.actions {
  margin-top: 1.25rem;
  display: flex;
  justify-content: flex-end;
}

.btn {
  font: inherit;
  font-weight: 600;
  padding: 0.65rem 1.5rem;
  border: none;
  border-radius: 8px;
  cursor: pointer;
  transition: background 0.15s, opacity 0.15s;
}

.btn:disabled {
  opacity: 0.45;
  cursor: not-allowed;
}

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

.btn-primary:hover:not(:disabled) {
  background: var(--primary-hover);
}

.progress {
  margin-top: 1rem;
  height: 4px;
  background: var(--border);
  border-radius: 2px;
  overflow: hidden;
}

.progress-bar {
  height: 100%;
  width: 40%;
  background: var(--primary);
  border-radius: 2px;
  animation: indeterminate 1.2s ease-in-out infinite;
}

@keyframes indeterminate {
  0% {
    transform: translateX(-100%);
  }
  100% {
    transform: translateX(350%);
  }
}

.alert {
  margin: 0;
  padding: 0.75rem 1rem;
  border-radius: 8px;
  font-size: 0.95rem;
}

.alert.success {
  background: var(--success-bg);
  color: var(--success);
}

.alert.error {
  background: var(--error-bg);
  color: var(--error);
}

.summary-grid {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(120px, 1fr));
  gap: 1rem;
}

.summary-grid li {
  text-align: center;
  padding: 0.75rem;
  background: var(--bg);
  border-radius: 8px;
}

.summary-grid strong {
  display: block;
  font-size: 1.5rem;
  font-weight: 700;
}

.summary-grid span {
  font-size: 0.8rem;
  color: var(--muted);
  text-transform: uppercase;
  letter-spacing: 0.04em;
}

.mapping-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  font-size: 0.875rem;
}

.mapping-list li {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.5rem;
  padding: 0.5rem 0.75rem;
  background: var(--bg);
  border-radius: 8px;
}

.mapping-list .excel-col {
  color: var(--text);
  font-weight: 500;
}

.mapping-list .arrow {
  color: var(--muted);
}

.mapping-list .api-col {
  font-family: ui-monospace, monospace;
  font-size: 0.8rem;
  color: var(--primary);
}

.table-wrap {
  overflow-x: auto;
  border: 1px solid var(--border);
  border-radius: 8px;
}

table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.875rem;
}

th,
td {
  padding: 0.6rem 0.75rem;
  text-align: left;
  border-bottom: 1px solid var(--border);
}

th {
  background: var(--bg);
  font-weight: 600;
  white-space: nowrap;
}

tbody tr:last-child td {
  border-bottom: none;
}

.badge {
  display: inline-block;
  padding: 0.2em 0.55em;
  border-radius: 999px;
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.03em;
}

.badge.created {
  background: var(--success-bg);
  color: var(--success);
}

.badge.updated {
  background: var(--updated-bg);
  color: var(--updated);
}

.badge.error {
  background: var(--error-bg);
  color: var(--error);
}

.footer {
  margin-top: 2.5rem;
  text-align: center;
  font-size: 0.8rem;
  color: var(--muted);
}

@media (max-width: 600px) {
  .page {
    padding: 1.25rem 1rem 2rem;
  }

  .card {
    padding: 1rem;
  }
}