:root {
  color-scheme: light;
  --bg: #f6f7f4;
  --surface: #ffffff;
  --surface-soft: #eef4ef;
  --surface-warm: #fffaf0;
  --ink: #16211f;
  --muted: #53635d;
  --border: #d8e0d9;
  --border-strong: #aebbb2;
  --accent: #176b47;
  --accent-dark: #0f5135;
  --accent-soft: #dff3e7;
  --warning: #8a5a12;
  --warning-soft: #f7e8c9;
  --danger: #9a332f;
  --danger-soft: #f7dddd;
  --focus: #1b7f67;
  --shadow: 0 18px 48px rgba(22, 33, 31, 0.08);
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }

  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    scroll-behavior: auto !important;
    transition-duration: 0.01ms !important;
  }
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font-size: 16px;
  line-height: 1.55;
}

img,
svg {
  max-width: 100%;
}

a {
  color: var(--accent-dark);
  text-decoration-thickness: 0.08em;
  text-underline-offset: 0.18em;
}

a:hover {
  color: var(--accent);
}

button,
input,
select {
  font: inherit;
}

:focus-visible {
  outline: 3px solid var(--focus);
  outline-offset: 3px;
}

.skip-link {
  position: absolute;
  left: 1rem;
  top: 0.75rem;
  z-index: 10;
  transform: translateY(-140%);
  background: var(--ink);
  color: #fff;
  padding: 0.6rem 0.85rem;
  border-radius: 6px;
}

.skip-link:focus {
  transform: translateY(0);
}

.visually-hidden {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

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

.site-header {
  position: sticky;
  top: 0;
  z-index: 5;
  background: rgba(246, 247, 244, 0.94);
  border-bottom: 1px solid var(--border);
  backdrop-filter: blur(10px);
}

.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  min-height: 68px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 0.65rem;
  color: var(--ink);
  font-weight: 750;
  text-decoration: none;
}

.brand-mark {
  display: inline-grid;
  place-items: center;
  width: 36px;
  height: 36px;
  border-radius: 8px;
  background: var(--ink);
  color: #fff;
  font-size: 0.95rem;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 1rem;
  flex-wrap: wrap;
}

.nav-links a {
  color: var(--muted);
  font-weight: 650;
  text-decoration: none;
}

.nav-links a:hover {
  color: var(--ink);
}

.hero,
.tool-hero {
  position: relative;
  overflow: hidden;
  padding: 72px 0 56px;
  border-bottom: 1px solid var(--border);
  background:
    linear-gradient(90deg, rgba(246, 247, 244, 0.98), rgba(246, 247, 244, 0.86)),
    url("og-image.svg") right 3rem center / min(46vw, 620px) auto no-repeat;
}

.hero-content,
.tool-hero-content {
  max-width: 680px;
}

.eyebrow {
  margin: 0 0 0.75rem;
  color: var(--accent-dark);
  font-weight: 750;
  text-transform: uppercase;
  font-size: 0.78rem;
}

h1,
h2,
h3,
h4 {
  margin: 0;
  line-height: 1.12;
}

h1 {
  font-size: clamp(2.15rem, 6vw, 4.6rem);
  max-width: 11ch;
}

.hero h1 {
  max-width: 13ch;
}

h2 {
  font-size: clamp(1.8rem, 4vw, 3rem);
}

h3 {
  font-size: 1.15rem;
}

h4 {
  font-size: 1rem;
}

.lede {
  max-width: 680px;
  margin: 1rem 0 0;
  color: var(--muted);
  font-size: clamp(1.04rem, 2vw, 1.25rem);
}

.hero-actions {
  display: flex;
  gap: 0.75rem;
  flex-wrap: wrap;
  margin-top: 1.5rem;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 44px;
  padding: 0.72rem 1rem;
  border: 1px solid var(--accent-dark);
  border-radius: 6px;
  background: var(--accent);
  color: #fff;
  font-weight: 750;
  text-decoration: none;
  cursor: pointer;
}

.button:hover {
  background: var(--accent-dark);
  color: #fff;
}

.button.secondary {
  background: var(--surface);
  color: var(--ink);
  border-color: var(--border-strong);
}

.button.secondary:hover {
  background: var(--surface-soft);
  color: var(--ink);
}

.button.ghost {
  background: transparent;
  color: var(--muted);
  border-color: transparent;
}

.button.ghost:hover {
  background: var(--surface-soft);
  color: var(--ink);
}

.button.small {
  min-height: 36px;
  padding: 0.45rem 0.7rem;
  font-size: 0.9rem;
}

.button:disabled {
  cursor: not-allowed;
  opacity: 0.56;
}

.privacy-strip {
  background: var(--ink);
  color: #fff;
}

.privacy-strip .container {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1px;
  background: rgba(255, 255, 255, 0.16);
}

.privacy-item {
  padding: 0.95rem 1rem;
  background: var(--ink);
  font-weight: 700;
}

.section {
  padding: 68px 0;
}

.section.compact {
  padding: 44px 0;
}

.section-heading {
  max-width: 760px;
  margin-bottom: 1.5rem;
}

.section-heading p {
  margin: 0.75rem 0 0;
  color: var(--muted);
}

.tool-shell {
  display: grid;
  gap: 1.25rem;
}

.upload-grid,
.mapping-grid,
.info-grid,
.steps-grid,
.audience-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1rem;
}

.steps-grid,
.audience-grid {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.panel,
.info-block,
.step-block,
.audience-block {
  border: 1px solid var(--border);
  border-radius: 8px;
  background: var(--surface);
  padding: 1.15rem;
  box-shadow: var(--shadow);
}

.panel.no-shadow,
.info-block,
.step-block,
.audience-block {
  box-shadow: none;
}

.panel-header {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 1rem;
  margin-bottom: 1rem;
}

.panel-header p,
.info-block p,
.step-block p,
.audience-block p {
  margin: 0.35rem 0 0;
  color: var(--muted);
}

.upload-zone {
  display: grid;
  gap: 0.85rem;
  min-height: 190px;
  border: 1px dashed var(--border-strong);
  border-radius: 8px;
  background: var(--surface-soft);
  padding: 1rem;
}

.upload-zone.is-dragging {
  border-color: var(--accent);
  background: var(--accent-soft);
}

.native-file {
  width: 100%;
  padding: 0.75rem;
  border: 1px solid var(--border);
  border-radius: 6px;
  background: var(--surface);
}

.status-line,
.muted {
  color: var(--muted);
}

.status-line {
  min-height: 1.5rem;
  margin: 0;
}

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

.mapping-panel {
  display: grid;
  gap: 0.85rem;
}

.mapping-row {
  display: grid;
  grid-template-columns: minmax(150px, 0.85fr) minmax(0, 1fr);
  gap: 0.75rem;
  align-items: center;
}

.mapping-row label {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.5rem;
  color: var(--ink);
  font-weight: 700;
}

.required-mark,
.optional-mark {
  white-space: nowrap;
  font-size: 0.72rem;
  color: var(--muted);
}

.required-mark {
  color: var(--danger);
}

select {
  width: 100%;
  min-height: 42px;
  border: 1px solid var(--border-strong);
  border-radius: 6px;
  background: var(--surface);
  color: var(--ink);
  padding: 0.55rem 0.65rem;
}

.tool-actions {
  display: flex;
  align-items: center;
  gap: 1rem;
  flex-wrap: wrap;
  border: 1px solid var(--border);
  border-radius: 8px;
  background: var(--surface);
  padding: 1rem;
}

.alert {
  border: 1px solid var(--danger);
  border-radius: 8px;
  background: var(--danger-soft);
  color: var(--ink);
  padding: 1rem;
}

.alert[hidden],
[hidden] {
  display: none !important;
}

.results-toolbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  flex-wrap: wrap;
  margin-bottom: 1rem;
}

.results-toolbar p {
  margin: 0.35rem 0 0;
  color: var(--muted);
}

.result-groups {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1rem;
}

.result-group {
  min-width: 0;
  border: 1px solid var(--border);
  border-radius: 8px;
  background: var(--surface);
}

.result-group-header {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 1rem;
  padding: 1rem;
  border-bottom: 1px solid var(--border);
}

.result-group-header p {
  margin: 0.35rem 0 0;
  color: var(--muted);
}

.count-badge,
.status-pill {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 2rem;
  min-height: 2rem;
  border-radius: 999px;
  padding: 0.2rem 0.6rem;
  background: var(--surface-soft);
  color: var(--ink);
  font-weight: 800;
}

.status-pill {
  border-radius: 999px;
  font-size: 0.8rem;
  text-transform: capitalize;
}

.status-pill.matched {
  background: var(--accent-soft);
  color: var(--accent-dark);
}

.status-pill.review {
  background: var(--warning-soft);
  color: var(--warning);
}

.result-list {
  display: grid;
  gap: 0.75rem;
  padding: 1rem;
}

.result-card {
  display: grid;
  gap: 0.8rem;
  border: 1px solid var(--border);
  border-radius: 8px;
  background: #fff;
  padding: 0.95rem;
}

.result-card.partial {
  border-color: #e5c77b;
}

.result-card.unmatched {
  background: #fbfcfa;
}

.result-card-header {
  display: flex;
  justify-content: space-between;
  gap: 0.8rem;
  align-items: flex-start;
}

.result-card-header p,
.result-card p {
  margin: 0.25rem 0 0;
  color: var(--muted);
}

.detail-grid {
  display: grid;
  grid-template-columns: 120px minmax(0, 1fr);
  gap: 0.4rem 0.75rem;
  margin: 0;
}

.detail-grid dt {
  color: var(--muted);
  font-weight: 750;
}

.detail-grid dd {
  min-width: 0;
  margin: 0;
  overflow-wrap: anywhere;
}

.reason-list {
  margin: 0;
  padding-left: 1.2rem;
  color: var(--muted);
}

.card-actions {
  display: flex;
  gap: 0.5rem;
  flex-wrap: wrap;
}

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

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

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

th,
td {
  padding: 0.85rem;
  border-bottom: 1px solid var(--border);
  text-align: left;
  vertical-align: top;
}

th {
  background: var(--surface-soft);
  color: var(--ink);
}

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

.faq-list {
  display: grid;
  gap: 0.75rem;
}

details {
  border: 1px solid var(--border);
  border-radius: 8px;
  background: var(--surface);
  padding: 1rem;
}

summary {
  cursor: pointer;
  font-weight: 800;
}

details p {
  margin: 0.75rem 0 0;
  color: var(--muted);
}

.footer {
  border-top: 1px solid var(--border);
  padding: 36px 0;
  background: var(--surface);
  color: var(--muted);
}

.footer-grid {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 1rem;
  align-items: start;
}

.footer-links {
  display: flex;
  gap: 1rem;
  flex-wrap: wrap;
}

.hub-list {
  display: grid;
  gap: 1rem;
  margin-top: 1.5rem;
}

.hub-tool {
  display: grid;
  gap: 0.5rem;
  border: 1px solid var(--border);
  border-radius: 8px;
  background: var(--surface);
  padding: 1.25rem;
  text-decoration: none;
  color: var(--ink);
  box-shadow: var(--shadow);
}

.hub-tool:hover {
  color: var(--ink);
  border-color: var(--accent);
}

.hub-tool p {
  margin: 0;
  color: var(--muted);
}

@media (max-width: 860px) {
  .hero,
  .tool-hero {
    padding: 52px 0 40px;
    background:
      linear-gradient(180deg, rgba(246, 247, 244, 0.98), rgba(246, 247, 244, 0.94)),
      url("og-image.svg") center bottom / 680px auto no-repeat;
  }

  h1 {
    max-width: 100%;
  }

  .upload-grid,
  .mapping-grid,
  .result-groups,
  .steps-grid,
  .audience-grid,
  .info-grid {
    grid-template-columns: 1fr;
  }

  .privacy-strip .container {
    grid-template-columns: 1fr;
  }

  .mapping-row {
    grid-template-columns: 1fr;
  }

  .footer-grid,
  .nav {
    grid-template-columns: 1fr;
  }

  .nav {
    align-items: flex-start;
    padding: 0.9rem 0;
  }
}

@media (max-width: 560px) {
  .container {
    width: min(100% - 24px, 1120px);
  }

  .nav-links {
    gap: 0.7rem;
  }

  .hero-actions,
  .tool-actions,
  .results-toolbar,
  .card-actions {
    align-items: stretch;
    flex-direction: column;
  }

  .button {
    width: 100%;
  }

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