:root {
  color-scheme: light;
  --bg: #f2f2f7;
  --card: #ffffff;
  --text: #1d1d1f;
  --muted: #6e6e73;
  --line: #e7e7ed;
  --accent: #0a84ff;
  --radius: 14px;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  background: radial-gradient(circle at top, #ffffff 0%, var(--bg) 45%);
  color: var(--text);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
}

.page {
  max-width: 840px;
  margin: 0 auto;
  padding: 28px 16px 44px;
}

.card {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 22px;
  margin-bottom: 18px;
  box-shadow: 0 8px 26px rgba(20, 20, 43, 0.04);
}

.hero h1 {
  margin: 6px 0;
  font-size: clamp(28px, 5vw, 40px);
}

.eyebrow {
  margin: 0;
  color: var(--muted);
  font-size: 13px;
}

.subtitle {
  margin: 0;
  color: var(--muted);
}

.seo-copy {
  margin: 10px 0 0;
  color: var(--muted);
  line-height: 1.5;
  max-width: 62ch;
}

h2 {
  margin: 0 0 14px;
  font-size: 22px;
}

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

.settings-grid {
  display: grid;
  gap: 12px;
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.field span {
  display: block;
  margin-bottom: 6px;
  font-size: 14px;
  color: var(--muted);
}

input {
  width: 100%;
  height: 44px;
  border: 1px solid var(--line);
  border-radius: 12px;
  padding: 0 12px;
  font-size: 16px;
  background: #fff;
}

input:focus {
  outline: 2px solid rgba(10, 132, 255, 0.2);
  outline-offset: 0;
  border-color: rgba(10, 132, 255, 0.45);
}

.btn {
  margin-top: 8px;
  height: 44px;
  border: none;
  border-radius: 12px;
  background: var(--accent);
  color: #fff;
  font-size: 16px;
  cursor: pointer;
}

.btn:hover {
  opacity: 0.92;
}

.btn:disabled {
  opacity: 0.6;
  cursor: not-allowed;
}

.hint {
  margin: 10px 0 0;
  color: var(--muted);
  font-size: 13px;
}

.hint.error {
  color: #b42318;
}

.empty-state {
  margin: 0 0 12px;
  color: var(--muted);
  font-size: 14px;
}

.faq .faq-list {
  margin: 0;
}

.faq .faq-list dt {
  margin: 16px 0 6px;
  font-weight: 600;
  color: var(--text);
}

.faq .faq-list dt:first-child {
  margin-top: 0;
}

.faq .faq-list dd {
  margin: 0;
  color: var(--muted);
  line-height: 1.55;
}

.metric-grid {
  display: grid;
  gap: 12px;
  grid-template-columns: repeat(3, 1fr);
}

.metric {
  border: 1px solid var(--line);
  border-radius: 12px;
  padding: 12px;
  background: linear-gradient(180deg, #ffffff 0%, #fbfbfd 100%);
}

.metric .label {
  margin: 0;
  color: var(--muted);
  font-size: 13px;
}

.metric .value {
  margin: 6px 0 0;
  font-size: 26px;
  font-weight: 600;
}

.mapping-list {
  margin: 0;
  padding-left: 18px;
  display: grid;
  gap: 10px;
}

.progress-wrap {
  margin-top: 12px;
  background: #ebebf0;
  border-radius: 999px;
  height: 10px;
  overflow: hidden;
}

.progress-bar {
  width: 0;
  height: 100%;
  background: linear-gradient(90deg, #34c759, #0a84ff);
  transition: width 200ms ease;
}

.footer {
  text-align: center;
  color: var(--muted);
  font-size: 12px;
  padding: 8px;
}

@media (max-width: 680px) {
  .page {
    padding: 16px 12px 28px;
  }

  .card {
    padding: 16px;
    border-radius: 12px;
  }

  h2 {
    font-size: 20px;
  }

  .metric-grid {
    grid-template-columns: 1fr;
  }

  .settings-grid {
    grid-template-columns: 1fr;
  }

  .btn,
  input {
    height: 42px;
  }
}