:root {
  --bg: #f5f6f8;
  --surface: #ffffff;
  --border: #e3e6ea;
  --border-strong: #cdd3db;
  --ink: #16202c;
  --ink-soft: #5d6874;
  --accent: #1f5eff;
  --accent-dark: #1748c9;
  --accent-wash: #eef3ff;
  --ok: #0f7a52;
  --ok-wash: #e8f6ef;
  --warn: #9a6207;
  --warn-wash: #fdf4e3;
  --err: #b3261e;
  --err-wash: #fdeeed;
  --radius: 10px;
  --shadow: 0 1px 2px rgba(16, 24, 40, .06), 0 1px 3px rgba(16, 24, 40, .04);
  --shadow-lift: 0 4px 14px rgba(16, 24, 40, .09);
}

* { box-sizing: border-box; }

html { -webkit-text-size-adjust: 100%; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font: 15px/1.55 "Segoe UI", -apple-system, BlinkMacSystemFont, Roboto, Arial, sans-serif;
}

.shell {
  max-width: 1150px;
  margin: 0 auto;
  padding: 0 24px;
}

/* Masthead */

.masthead {
  background: var(--surface);
  border-bottom: 1px solid var(--border);
}

.masthead-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding-top: 14px;
  padding-bottom: 14px;
}

.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  text-decoration: none;
  color: inherit;
}

.brand-mark {
  background: var(--ink);
  color: #fff;
  font-weight: 700;
  font-size: 13px;
  letter-spacing: .08em;
  padding: 5px 9px;
  border-radius: 6px;
}

.brand-text {
  font-size: 14px;
  color: var(--ink-soft);
}

/* Stepper */

.stepper {
  background: var(--surface);
  border-bottom: 1px solid var(--border);
}

.stepper-list {
  display: flex;
  gap: 8px;
  list-style: none;
  padding-top: 12px;
  padding-bottom: 12px;
  overflow-x: auto;
}

.stepper-list li {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 4px 14px 4px 4px;
  color: var(--ink-soft);
  font-size: 13px;
  white-space: nowrap;
}

.stepper-list li + li::before {
  content: "";
  width: 18px;
  height: 1px;
  background: var(--border-strong);
  margin-right: 6px;
}

.dot {
  display: grid;
  place-items: center;
  width: 24px;
  height: 24px;
  border-radius: 50%;
  background: var(--bg);
  border: 1px solid var(--border-strong);
  font-size: 12px;
  font-weight: 600;
}

.stepper-list li.is-active { color: var(--ink); font-weight: 600; }
.stepper-list li.is-active .dot { background: var(--accent); border-color: var(--accent); color: #fff; }
.stepper-list li.is-done .dot { background: var(--ok-wash); border-color: var(--ok); color: var(--ok); }

/* Views */

main { padding: 32px 0 56px; }

.view-head { margin-bottom: 24px; }

.view-head h1 {
  margin: 26px 0 0 0;
  font-size: 24px;
  letter-spacing: -.01em;
}

.view-head p {
  margin: 0;
  color: var(--ink-soft);
}

.view-actions {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-top: 28px;
  padding-top: 20px;
  border-top: 1px solid var(--border);
}

.spacer { flex: 1; }

/* Workflow cards */

.choice-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
}

.choice {
  position: relative;
  display: flex;
  flex-direction: column;
  gap: 8px;
  text-align: left;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 20px;
  font: inherit;
  color: inherit;
  cursor: pointer;
  transition: box-shadow .15s, border-color .15s, transform .15s;
}

.choice:hover:not(:disabled) {
  border-color: var(--accent);
  box-shadow: var(--shadow-lift);
  transform: translateY(-1px);
}

.choice:disabled {
  cursor: not-allowed;
  opacity: .62;
}

.choice h2 {
  margin: 0;
  font-size: 17px;
  padding-right: 104px;
}

.choice p {
  margin: 0;
  color: var(--ink-soft);
  font-size: 14px;
}

.choice-foot {
  margin-top: 6px;
  font-size: 12px;
  color: var(--ink-soft);
}

.pill {
  position: absolute;
  top: 16px;
  right: 16px;
  font-size: 11px;
  font-weight: 600;
  letter-spacing: .04em;
  text-transform: uppercase;
  padding: 3px 8px;
  border-radius: 20px;
}

.pill-ok { background: var(--ok-wash); color: var(--ok); }
.pill-soon { background: var(--warn-wash); color: var(--warn); }

/* Dropzone */

.dropzone {
  display: grid;
  place-items: center;
  gap: 4px;
  background: var(--surface);
  border: 1.5px dashed var(--border-strong);
  border-radius: var(--radius);
  padding: 48px 24px;
  text-align: center;
  cursor: pointer;
  transition: border-color .15s, background .15s;
}

.dropzone:hover,
.dropzone:focus-visible,
.dropzone.is-over {
  border-color: var(--accent);
  background: var(--accent-wash);
  outline: none;
}

.dropzone-icon {
  width: 34px;
  height: 34px;
  fill: none;
  stroke: var(--accent);
  stroke-width: 1.6;
  stroke-linecap: round;
  stroke-linejoin: round;
  margin-bottom: 6px;
}

.dropzone-title { margin: 0; font-weight: 600; }
.dropzone-sub { margin: 0; color: var(--ink-soft); font-size: 13px; }

/* Notices */

.notice {
  margin-top: 16px;
  padding: 12px 14px;
  border-radius: var(--radius);
  border: 1px solid var(--border);
  background: var(--surface);
  font-size: 14px;
}

.notice-ok { background: var(--ok-wash); border-color: #bfe3d3; color: var(--ok); }
.notice-err { background: var(--err-wash); border-color: #f2c9c6; color: var(--err); }
.notice-warn { background: var(--warn-wash); border-color: #ecd9b0; color: var(--warn); }

/* Upload preview */

.preview {
  margin-top: 16px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 14px 16px;
}

.preview-head {
  display: flex;
  align-items: center;
  gap: 12px;
  flex-wrap: wrap;
  margin-bottom: 10px;
}

.segmented {
  display: inline-flex;
  background: var(--bg);
  border: 1px solid var(--border-strong);
  border-radius: 8px;
  padding: 2px;
}

.seg {
  border: 0;
  background: transparent;
  border-radius: 6px;
  padding: 6px 14px;
  font: inherit;
  font-size: 13px;
  color: var(--ink-soft);
  cursor: pointer;
  white-space: nowrap;
}

.seg.is-active {
  background: var(--surface);
  color: var(--ink);
  font-weight: 600;
  box-shadow: var(--shadow);
}

.search-inline {
  flex: 1;
  min-width: 160px;
  margin: 0;
}

/* Mapped-cell badge */

.maps-to {
  display: inline-block;
  font-family: ui-monospace, Consolas, monospace;
  font-size: 11px;
  font-weight: 600;
  color: var(--accent);
  background: var(--accent-wash);
  border-radius: 4px;
  padding: 1px 6px;
  vertical-align: 1px;
}

.raw-item.is-mapped span:first-child { color: var(--ink); font-weight: 600; }

.len {
  font-size: 12px;
  font-variant-numeric: tabular-nums;
  padding: 1px 7px;
  border-radius: 20px;
  background: var(--bg);
  color: var(--ink-soft);
  margin-left: 6px;
  white-space: nowrap;
}

.len-over { background: var(--err-wash); color: var(--err); font-weight: 600; }

/* Field list */

.preview-flush { margin-top: 0; }

.search-input {
  width: 100%;
  padding: 8px 10px;
  border: 1px solid var(--border-strong);
  border-radius: 8px;
  font: inherit;
  font-size: 14px;
}

.search-input:focus {
  outline: 2px solid var(--accent);
  outline-offset: -1px;
  border-color: var(--accent);
}

.raw-list {
  max-height: 320px;
  overflow-y: auto;
}

.raw-list-tall { max-height: none; overflow-y: visible; }

.raw-item {
  display: grid;
  grid-template-columns: 240px 1fr;
  gap: 12px;
  padding: 7px 0;
  border-top: 1px solid var(--border);
  font-size: 13px;
}

.raw-item span:first-child { color: var(--ink-soft); overflow-wrap: anywhere; }
.raw-item span:last-child { overflow-wrap: anywhere; }

/* Review */

.context-strip {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 18px;
}

.chip {
  display: inline-flex;
  align-items: baseline;
  gap: 6px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 20px;
  padding: 5px 12px;
  font-size: 13px;
}

.chip b {
  font-weight: 600;
  color: var(--ink-soft);
  font-size: 11px;
  letter-spacing: .03em;
  text-transform: uppercase;
}

.chip-note {
  color: var(--ink-soft);
  font-style: italic;
}

.result-table {
  width: 100%;
  border-collapse: collapse;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  overflow: hidden;
  table-layout: fixed;
}

.result-table th,
.result-table td {
  text-align: left;
  padding: 11px 14px;
  border-bottom: 1px solid var(--border);
  overflow-wrap: anywhere;
  font-weight: 400;
  font-size: 14px;
}

.result-table thead th {
  background: #fafbfc;
  font-size: 11px;
  font-weight: 600;
  letter-spacing: .05em;
  text-transform: uppercase;
  color: var(--ink-soft);
}

.result-table tbody tr:last-child th,
.result-table tbody tr:last-child td { border-bottom: 0; }

.col-cell { width: 66px; }
.col-target { width: 30%; }

.cell-ref {
  font-family: ui-monospace, Consolas, monospace;
  font-size: 12px;
  color: var(--ink-soft);
}

.muted { color: var(--ink-soft); font-style: italic; }

/* Offer page panel */

.offer-panel {
  margin-top: 20px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 18px;
}

.offer-head {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 16px;
  flex-wrap: wrap;
  margin-bottom: 14px;
}

.offer-intro h2 {
  margin: 0 0 4px;
  font-size: 15px;
  display: flex;
  align-items: center;
  gap: 8px;
}

.offer-intro p {
  margin: 0;
  font-size: 13px;
  color: var(--ink-soft);
  max-width: 52ch;
}

.optional {
  font-size: 10px;
  font-weight: 600;
  letter-spacing: .05em;
  text-transform: uppercase;
  color: var(--ink-soft);
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 20px;
  padding: 2px 7px;
}

#openOfferBtn {
  text-decoration: none;
  white-space: nowrap;
}

#openOfferBtn.is-disabled {
  opacity: .5;
  pointer-events: none;
}

.dropzone-sm {
  padding: 22px 16px;
}

.offer-found {
  margin-top: 12px;
  border-top: 1px solid var(--border);
}

/* Inline editors */

.cell-edit {
  display: flex;
  align-items: flex-start;
  gap: 8px;
}

.cell-side {
  display: flex;
  align-items: center;
  gap: 4px;
  padding-top: 6px;
}

.revert {
  border: 1px solid var(--border-strong);
  background: var(--surface);
  color: var(--ink-soft);
  border-radius: 6px;
  width: 24px;
  height: 24px;
  line-height: 1;
  font-size: 14px;
  cursor: pointer;
  padding: 0;
}

.revert:hover { border-color: var(--accent); color: var(--accent); }
.revert[hidden] { display: none; }

.cell-input {
  flex: 1;
  min-width: 0;
  padding: 7px 10px;
  border: 1px dashed var(--border-strong);
  border-radius: 8px;
  background: #fbfcfd;
  font: inherit;
  font-size: 14px;
  color: var(--ink);
  resize: none;
  overflow: hidden;
  line-height: 1.45;
}

.cell-input::placeholder { color: var(--ink-soft); font-style: italic; }

.cell-input:focus {
  outline: 2px solid var(--accent);
  outline-offset: -1px;
  border-color: var(--accent);
  border-style: solid;
  background: var(--surface);
}

.cell-input.has-text {
  border-style: solid;
  background: var(--surface);
}

.cell-input.is-edited {
  border-color: var(--accent);
  background: var(--accent-wash);
}

.cell-edit .len[hidden] { display: none; }

.cell-edit-rich {
  flex-wrap: wrap;
}

.rich-toolbar {
  display: flex;
  gap: 4px;
  flex: 0 0 100%;
  margin-bottom: 4px;
}

.rich-tool-btn {
  border: 1px solid var(--border-strong);
  background: var(--surface);
  color: var(--ink-soft);
  border-radius: 6px;
  width: 26px;
  height: 26px;
  font: inherit;
  font-size: 13px;
  cursor: pointer;
  padding: 0;
}

.rich-tool-btn:hover { border-color: var(--accent); color: var(--accent); }
.rich-tool-btn:nth-child(1) { font-weight: 700; }
.rich-tool-btn:nth-child(2) { font-style: italic; }
.rich-tool-btn:nth-child(3) { text-decoration: underline; }

.cell-input-rich {
  min-height: 2.5em;
  white-space: pre-wrap;
}

.open-link {
  white-space: nowrap;
  text-decoration: none;
}

.open-link.is-disabled {
  opacity: .5;
  pointer-events: none;
}

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

/* Buttons */

.btn {
  border: 1px solid transparent;
  border-radius: 8px;
  padding: 9px 18px;
  font: inherit;
  font-size: 14px;
  font-weight: 500;
  cursor: pointer;
  transition: background .15s, border-color .15s;
}

.btn-primary { background: var(--accent); color: #fff; }
.btn-primary:hover:not(:disabled) { background: var(--accent-dark); }
.btn-primary:disabled { background: #b9c6e8; cursor: not-allowed; }

.btn-quiet {
  background: var(--surface);
  border-color: var(--border-strong);
  color: var(--ink);
}

.btn-quiet:hover { border-color: var(--ink-soft); }

.page-foot {
  color: var(--ink-soft);
  padding-bottom: 32px;
}

@media (max-width: 640px) {
  .choice-grid { grid-template-columns: 1fr; }
  .raw-item { grid-template-columns: 1fr; gap: 2px; }
  .step-name { display: none; }
}