:root {
  --brand: #165b73;
  --brand-dark: #0d3f52;
  --brand-soft: #eaf4f7;
  --accent: #b67a2a;
  --ink: #1d2a31;
  --muted: #5e6c73;
  --border: #ccd8dd;
  --surface: #ffffff;
  --page: #f3f6f7;
  --error: #a51f28;
  --success: #176b43;
  --radius: 12px;
  --shadow: 0 10px 30px rgb(20 45 57 / 9%);
  font-family: Arial, Helvetica, sans-serif;
  color: var(--ink);
  background: var(--page);
}

* { box-sizing: border-box; }
body { margin: 0; min-height: 100vh; background: var(--page); line-height: 1.55; }
button, input, select, textarea { font: inherit; }
button { cursor: pointer; }
.shell { width: min(1120px, calc(100% - 32px)); margin-inline: auto; }
.site-header { background: var(--brand-dark); color: white; border-bottom: 5px solid var(--accent); }
.header-inner { display: flex; align-items: center; gap: 18px; padding-block: 24px; }
.eyebrow, .section-number { margin: 0 0 4px; font-size: .82rem; font-weight: 700; letter-spacing: .08em; text-transform: uppercase; }
h1, h2, h3 { line-height: 1.2; }
h1 { margin: 0; font-size: clamp(1.55rem, 4vw, 2.25rem); }
h2 { margin: 0 0 10px; font-size: clamp(1.35rem, 3vw, 1.9rem); }
h3 { margin: 0; font-size: 1.15rem; }
.main-shell { padding-block: 34px 60px; }
.intro { max-width: 850px; margin-bottom: 24px; }
.intro h2 { font-size: clamp(1.45rem, 3vw, 2rem); }
.notice { padding: 12px 15px; border-left: 4px solid var(--brand); background: var(--brand-soft); }
.stepper { display: grid; grid-template-columns: repeat(4, 1fr); gap: 8px; margin-bottom: 18px; }
.step { border: 1px solid var(--border); background: var(--surface); color: var(--muted); padding: 12px; text-align: left; border-radius: 8px; cursor: default; }
.step span { display: inline-grid; place-items: center; width: 25px; height: 25px; border-radius: 50%; margin-right: 6px; background: #e5ecef; font-weight: 700; }
.step.is-active { border-color: var(--brand); color: var(--brand-dark); box-shadow: inset 0 -3px 0 var(--brand); }
.step.is-complete span { background: var(--success); color: white; }
.panel { background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius); box-shadow: var(--shadow); padding: clamp(20px, 4vw, 36px); }
.panel-heading { margin-bottom: 24px; }
.panel-heading p:last-child { margin-bottom: 0; color: var(--muted); }
.section-number { color: var(--brand); }
.field-grid { display: grid; gap: 18px; }
.two-columns { grid-template-columns: repeat(2, minmax(0, 1fr)); }
label { display: grid; gap: 7px; font-weight: 700; }
input, select, textarea { width: 100%; border: 1px solid #aebdc4; border-radius: 7px; padding: 11px 12px; background: white; color: var(--ink); }
input:focus, select:focus, textarea:focus, button:focus-visible, summary:focus-visible { outline: 3px solid rgb(22 91 115 / 30%); outline-offset: 2px; border-color: var(--brand); }
textarea { resize: vertical; }
.help { margin: 0; color: var(--muted); font-size: .91rem; font-weight: 400; }
.card-list { display: grid; gap: 16px; margin-bottom: 18px; }
.entry-card { border: 1px solid var(--border); border-radius: 10px; padding: 20px; background: #fbfcfc; }
.entry-card-header { display: flex; justify-content: space-between; align-items: flex-start; gap: 16px; margin-bottom: 18px; }
.entry-card-header p { margin: 4px 0 0; color: var(--muted); }
.card-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 16px; }
.card-grid .wide { grid-column: 1 / -1; }
.address-fields { display: grid; grid-template-columns: 2fr 1fr 90px; gap: 12px; grid-column: 1 / -1; }
.address-fields .address-wide { grid-column: 1 / -1; }
.button { border: 0; border-radius: 7px; padding: 11px 18px; font-weight: 700; }
.button.primary { background: var(--brand); color: white; }
.button.primary:hover { background: var(--brand-dark); }
.button.secondary { background: var(--brand-soft); color: var(--brand-dark); border: 1px solid #a9cad5; }
.button.text { background: transparent; color: var(--brand-dark); }
.button.danger { background: transparent; color: var(--error); padding: 5px; }
.button-row { display: flex; justify-content: space-between; align-items: center; gap: 12px; margin-top: 28px; }
.button-row.end { justify-content: flex-end; }
.bulk-add { border: 1px dashed #9fb2ba; border-radius: 9px; padding: 14px 16px; margin-bottom: 20px; background: #f8fafb; }
.bulk-add summary { font-weight: 700; cursor: pointer; }
.bulk-add[open] summary { margin-bottom: 14px; }
.bulk-add .button { margin-top: 10px; }
.checkbox-line { display: flex; align-items: flex-start; gap: 10px; font-weight: 600; margin-top: 22px; }
.checkbox-line input { width: 19px; height: 19px; margin-top: 3px; }
.checkbox-group { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 8px 14px; padding: 12px; border: 1px solid var(--border); border-radius: 7px; background: white; }
.checkbox-group label { display: flex; align-items: flex-start; gap: 8px; font-weight: 500; }
.checkbox-group input { width: 18px; height: 18px; margin-top: 3px; }
.review-summary { display: grid; gap: 14px; margin-bottom: 24px; }
.review-block { border-left: 4px solid var(--brand); padding: 13px 16px; background: var(--brand-soft); }
.review-block h3 { margin-bottom: 7px; }
.review-block p { margin: 3px 0; }
.status { margin-bottom: 16px; padding: 12px 15px; border-radius: 7px; background: #fff2f2; border: 1px solid #e0a9ad; color: var(--error); font-weight: 700; }
.status.success { background: #eef8f2; border-color: #a6d4b8; color: var(--success); }
.confirmation { text-align: center; }
.confirmation-id { font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace; }
.turnstile-container { margin-top: 22px; min-height: 65px; }
.site-footer { background: #e4eaed; border-top: 1px solid var(--border); color: var(--muted); padding-block: 22px; font-size: .9rem; }
[hidden] { display: none !important; }

@media (max-width: 760px) {
  .stepper { grid-template-columns: 1fr 1fr; }
  .two-columns, .card-grid, .checkbox-group { grid-template-columns: 1fr; }
  .address-fields { grid-template-columns: 1fr; }
  .address-fields .address-wide { grid-column: auto; }
  .button-row { align-items: stretch; }
  .button-row .button { flex: 1; }
}

.catalog-help {
  margin: 0 0 18px;
  padding: 10px 12px;
  border-radius: 7px;
  background: #f8fafb;
  border: 1px solid var(--border);
  color: var(--muted);
  font-size: .94rem;
}
.assignment-tools { margin-top: 4px; }
.assignment-tools > .help { margin: 0 0 14px; }
.button-row.compact { margin-top: 16px; }
button:disabled { cursor: not-allowed; opacity: .65; }

.version-mark { margin-left: 0.5rem; font-size: 0.75rem; opacity: 0.65; }