:root {
  --bg: #f4efe5;
  --panel: rgba(255, 250, 244, 0.92);
  --panel-strong: #fffaf2;
  --text: #18212b;
  --muted: #627183;
  --line: rgba(24, 33, 43, 0.12);
  --primary: #0e5f59;
  --primary-strong: #09413d;
  --accent: #d78230;
  --danger: #b6432c;
  --shadow: 0 24px 80px rgba(77, 51, 21, 0.12);
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: "Segoe UI", "PingFang SC", "Hiragino Sans GB", sans-serif;
  color: var(--text);
  background:
    radial-gradient(circle at top left, rgba(215, 130, 48, 0.16), transparent 35%),
    radial-gradient(circle at top right, rgba(14, 95, 89, 0.18), transparent 28%),
    linear-gradient(180deg, #f7f2e9 0%, #f1ece2 100%);
}

code {
  font-family: "SFMono-Regular", Consolas, Monaco, monospace;
}

.page {
  max-width: 1180px;
  margin: 0 auto;
  padding: 48px 20px 80px;
}

.hero {
  display: grid;
  grid-template-columns: 1.5fr 1fr;
  gap: 24px;
  align-items: stretch;
  margin-bottom: 24px;
}

.hero-copy,
.hero-note,
.tabs-card {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 28px;
  box-shadow: var(--shadow);
  backdrop-filter: blur(18px);
}

.hero-copy {
  padding: 32px;
}

.hero-note {
  padding: 28px;
  display: flex;
  flex-direction: column;
  justify-content: center;
  gap: 12px;
}

.eyebrow {
  margin: 0 0 10px;
  color: var(--accent);
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.16em;
  text-transform: uppercase;
}

h1 {
  margin: 0 0 12px;
  font-size: clamp(2rem, 5vw, 3.6rem);
  line-height: 1.02;
}

.subtitle,
.hero-note p,
.message,
.stats {
  color: var(--muted);
}

.tabs-card {
  padding: 16px;
}

.tabs {
  display: flex;
  gap: 10px;
  padding-bottom: 16px;
  border-bottom: 1px solid var(--line);
}

.tab,
.primary,
.ghost,
.ghost-link {
  border: 0;
  border-radius: 999px;
  padding: 12px 18px;
  font-size: 14px;
  font-weight: 700;
  transition: 0.18s ease;
  cursor: pointer;
}

.tab {
  background: transparent;
  color: var(--muted);
}

.tab.active {
  background: #efe4d4;
  color: var(--text);
}

.tab-panel {
  display: none;
  padding-top: 20px;
}

.tab-panel.active {
  display: block;
}

.field {
  display: grid;
  gap: 10px;
  margin-bottom: 18px;
}

label {
  font-size: 14px;
  font-weight: 700;
}

input[type="text"],
input[type="file"],
select,
textarea {
  width: 100%;
  border: 1px solid var(--line);
  border-radius: 18px;
  padding: 14px 16px;
  font: inherit;
  color: var(--text);
  background: var(--panel-strong);
}

textarea {
  resize: vertical;
}

.checkbox {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 18px;
  color: var(--muted);
  font-weight: 600;
}

.actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-bottom: 18px;
}

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

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

.ghost,
.ghost-link {
  background: #efe4d4;
  color: var(--text);
  text-decoration: none;
}

.ghost:disabled,
.ghost-link.disabled {
  opacity: 0.5;
  cursor: not-allowed;
  pointer-events: none;
}

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

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

.table-wrap,
.preview {
  overflow-x: auto;
  border: 1px solid var(--line);
  border-radius: 20px;
  background: var(--panel-strong);
}

table {
  width: 100%;
  border-collapse: collapse;
}

th,
td {
  padding: 14px 16px;
  border-bottom: 1px solid var(--line);
  text-align: left;
  vertical-align: top;
  font-size: 14px;
}

tbody tr:last-child td {
  border-bottom: 0;
}

.status-ok {
  color: var(--primary);
  font-weight: 700;
}

.status-error {
  color: var(--danger);
  font-weight: 700;
}

.excel-config.hidden {
  display: none;
}

.columns {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.column-pill {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 10px 14px;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: var(--panel-strong);
  font-size: 14px;
}

@media (max-width: 880px) {
  .hero {
    grid-template-columns: 1fr;
  }
}