/* ============================================================
   Invoice Dispute Scanner — design tokens
   Palette: paper / ink / ledger-green (pass) / rust (error) / gold (flag)
   Type: Source Serif 4 for headings & numerals, IBM Plex Mono for data
   ============================================================ */

:root {
  --paper: #F7F6F3;
  --paper-raised: #FFFFFF;
  --ink: #1A1D23;
  --ink-soft: #4A4F58;
  --rule: #D8D4CB;
  --rule-strong: #B8B2A3;

  --pass: #2E5E4E;
  --pass-bg: #E9F0EC;
  --error: #A13D2C;
  --error-bg: #F5E8E4;
  --flag: #8A6A1F;
  --flag-bg: #F3ECDA;

  --serif: 'Source Serif 4', Georgia, 'Times New Roman', serif;
  --mono: 'IBM Plex Mono', 'SF Mono', Consolas, monospace;

  --max-width: 760px;
}

* { box-sizing: border-box; }

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: var(--serif);
  font-size: 17px;
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
}

::selection {
  background: var(--flag-bg);
}

a {
  color: var(--ink);
  text-decoration-color: var(--rule-strong);
  text-underline-offset: 3px;
}
a:hover { text-decoration-color: var(--ink); }

:focus-visible {
  outline: 2px solid var(--pass);
  outline-offset: 2px;
}

.wrap {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 24px;
}

/* ---------- Header ---------- */
header.site {
  border-bottom: 1px solid var(--rule);
  padding: 22px 0;
}
header.site .wrap {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  max-width: 920px;
}
.wordmark {
  font-family: var(--serif);
  font-weight: 600;
  font-size: 19px;
  letter-spacing: -0.01em;
  color: var(--ink);
  text-decoration: none;
  display: flex;
  align-items: baseline;
  gap: 8px;
}
.wordmark .mark {
  font-family: var(--mono);
  font-size: 13px;
  color: var(--pass);
  border: 1px solid var(--pass);
  border-radius: 2px;
  padding: 1px 5px;
}
nav.site-nav {
  font-family: var(--mono);
  font-size: 13px;
}
nav.site-nav a {
  margin-left: 20px;
  color: var(--ink-soft);
}

/* ---------- Hero ---------- */
main { display: block; }

.hero {
  padding: 56px 0 40px;
}
.hero .wrap { max-width: 920px; }

.hero h1 {
  font-family: var(--serif);
  font-weight: 600;
  font-size: 40px;
  line-height: 1.15;
  letter-spacing: -0.015em;
  margin: 0 0 16px;
  max-width: 620px;
}

.hero p.lede {
  font-size: 18px;
  color: var(--ink-soft);
  max-width: 540px;
  margin: 0 0 8px;
}

.trust-line {
  font-family: var(--mono);
  font-size: 12.5px;
  color: var(--ink-soft);
  margin-top: 18px;
  display: flex;
  gap: 18px;
  flex-wrap: wrap;
}
.trust-line span::before {
  content: "· ";
  color: var(--rule-strong);
}
.trust-line span:first-child::before { content: ""; }

/* ---------- Uploader ---------- */
.scanner {
  margin-top: 36px;
  border: 1px solid var(--rule-strong);
  background: var(--paper-raised);
  border-radius: 3px;
}

.dropzone {
  padding: 48px 32px;
  text-align: center;
  border: 1px dashed var(--rule-strong);
  margin: 20px;
  border-radius: 2px;
  cursor: pointer;
  transition: border-color 0.15s ease, background 0.15s ease;
}
.dropzone:hover, .dropzone.dragover {
  border-color: var(--pass);
  background: var(--pass-bg);
}
.dropzone .icon {
  font-family: var(--mono);
  font-size: 13px;
  color: var(--ink-soft);
  margin-bottom: 10px;
}
.dropzone .primary {
  font-family: var(--serif);
  font-size: 19px;
  margin-bottom: 6px;
}
.dropzone .secondary {
  font-family: var(--mono);
  font-size: 12.5px;
  color: var(--ink-soft);
}
.dropzone input[type=file] { display: none; }

.state-select-row {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  font-family: var(--mono);
  font-size: 13px;
  color: var(--ink-soft);
  padding: 0 20px 20px;
}
.state-select-row select {
  font-family: var(--mono);
  font-size: 13px;
  padding: 4px 6px;
  border: 1px solid var(--rule-strong);
  background: var(--paper);
  color: var(--ink);
  border-radius: 2px;
}

/* ---------- Processing state ---------- */
.processing {
  padding: 40px 32px;
  text-align: center;
  font-family: var(--mono);
  font-size: 13px;
  color: var(--ink-soft);
}
.processing .dots::after {
  content: '';
  animation: dots 1.2s steps(4, end) infinite;
}
@keyframes dots {
  0% { content: ''; }
  25% { content: '.'; }
  50% { content: '..'; }
  75% { content: '...'; }
  100% { content: ''; }
}

/* ---------- Verdict ---------- */
.verdict {
  padding: 28px 32px 32px;
  border-top: 1px solid var(--rule);
}

.verdict-banner {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 16px 18px;
  border-radius: 2px;
  margin-bottom: 24px;
}
.verdict-banner.pass { background: var(--pass-bg); color: var(--pass); }
.verdict-banner.flag { background: var(--flag-bg); color: var(--flag); }
.verdict-banner.error { background: var(--error-bg); color: var(--error); }

.verdict-banner .status-dot {
  width: 10px; height: 10px;
  border-radius: 50%;
  background: currentColor;
  flex-shrink: 0;
}
.verdict-banner .status-text {
  font-family: var(--serif);
  font-weight: 600;
  font-size: 17px;
}
.verdict-banner .status-sub {
  font-family: var(--mono);
  font-size: 12.5px;
  opacity: 0.85;
  margin-left: auto;
}

.issue-list {
  list-style: none;
  margin: 0 0 24px;
  padding: 0;
}
.issue {
  display: flex;
  gap: 14px;
  padding: 14px 0;
  border-bottom: 1px solid var(--rule);
}
.issue:last-child { border-bottom: none; }
.issue .sev {
  font-family: var(--mono);
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  padding: 2px 7px;
  border-radius: 2px;
  height: fit-content;
  white-space: nowrap;
  margin-top: 2px;
}
.issue .sev.error { background: var(--error-bg); color: var(--error); }
.issue .sev.flag { background: var(--flag-bg); color: var(--flag); }
.issue .message { font-size: 15.5px; line-height: 1.5; }

.data-table {
  width: 100%;
  border-collapse: collapse;
  font-family: var(--mono);
  font-size: 13.5px;
  margin: 18px 0 24px;
}
.data-table th, .data-table td {
  text-align: left;
  padding: 8px 10px;
  border-bottom: 1px solid var(--rule);
}
.data-table th {
  color: var(--ink-soft);
  font-weight: 500;
  font-size: 11.5px;
  text-transform: uppercase;
  letter-spacing: 0.03em;
}
.data-table td.num { text-align: right; font-variant-numeric: tabular-nums; }
.data-table tr.dup-row td { background: var(--error-bg); }
.data-table tr.total-row td {
  border-top: 1px solid var(--rule-strong);
  border-bottom: none;
  padding-top: 12px;
  font-weight: 600;
}

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

.btn {
  font-family: var(--mono);
  font-size: 13px;
  padding: 9px 16px;
  border-radius: 2px;
  border: 1px solid var(--ink);
  background: var(--ink);
  color: var(--paper);
  cursor: pointer;
  text-decoration: none;
  display: inline-block;
}
.btn:hover { background: var(--ink-soft); border-color: var(--ink-soft); }
.btn.secondary {
  background: transparent;
  color: var(--ink);
  border-color: var(--rule-strong);
}
.btn.secondary:hover { border-color: var(--ink); background: transparent; }

.error-state {
  padding: 28px 32px;
  border-top: 1px solid var(--rule);
}
.error-state .status-text {
  font-family: var(--serif);
  font-weight: 600;
  font-size: 18px;
  color: var(--error);
  margin-bottom: 10px;
}
.error-state p { color: var(--ink-soft); }

.privacy-note {
  font-family: var(--mono);
  font-size: 12px;
  color: var(--ink-soft);
  padding: 14px 32px;
  border-top: 1px solid var(--rule);
  background: var(--paper);
}

/* ---------- Sections ---------- */
section.explain {
  padding: 56px 0;
  border-top: 1px solid var(--rule);
}
section.explain h2 {
  font-family: var(--serif);
  font-size: 26px;
  font-weight: 600;
  margin: 0 0 8px;
  letter-spacing: -0.01em;
}
section.explain .checks {
  margin-top: 28px;
  display: grid;
  gap: 22px;
}
.check-row {
  display: grid;
  grid-template-columns: 40px 1fr;
  gap: 14px;
  padding-bottom: 22px;
  border-bottom: 1px solid var(--rule);
}
.check-row:last-child { border-bottom: none; padding-bottom: 0; }
.check-row .num {
  font-family: var(--mono);
  font-size: 13px;
  color: var(--rule-strong);
  padding-top: 2px;
}
.check-row h3 {
  font-family: var(--serif);
  font-size: 17.5px;
  font-weight: 600;
  margin: 0 0 4px;
}
.check-row p {
  color: var(--ink-soft);
  font-size: 15.5px;
  margin: 0;
}

section.limits {
  padding: 40px 0 56px;
  border-top: 1px solid var(--rule);
}
section.limits h2 {
  font-family: var(--serif);
  font-size: 22px;
  font-weight: 600;
  margin: 0 0 14px;
}
section.limits ul {
  padding-left: 20px;
  color: var(--ink-soft);
}
section.limits li { margin-bottom: 8px; }

section.pricing {
  padding: 56px 0;
  border-top: 1px solid var(--rule);
}
section.pricing h2 {
  font-family: var(--serif);
  font-size: 26px;
  font-weight: 600;
  margin: 0 0 28px;
}
.price-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1px;
  background: var(--rule);
  border: 1px solid var(--rule);
}
.price-card {
  background: var(--paper-raised);
  padding: 26px 24px;
}
.price-card .plan-name {
  font-family: var(--mono);
  font-size: 12.5px;
  text-transform: uppercase;
  letter-spacing: 0.03em;
  color: var(--ink-soft);
  margin-bottom: 10px;
}
.price-card .price {
  font-family: var(--serif);
  font-size: 34px;
  font-weight: 600;
  margin-bottom: 4px;
}
.price-card .price span {
  font-size: 15px;
  font-weight: 400;
  color: var(--ink-soft);
}
.price-card .desc {
  color: var(--ink-soft);
  font-size: 14.5px;
  margin-bottom: 18px;
}
.price-card ul {
  list-style: none;
  padding: 0;
  margin: 0;
  font-size: 14.5px;
}
.price-card li {
  padding: 6px 0;
  border-top: 1px solid var(--rule);
}
.price-card li:first-child { border-top: none; }

section.faq {
  padding: 40px 0 64px;
  border-top: 1px solid var(--rule);
}
section.faq h2 {
  font-family: var(--serif);
  font-size: 26px;
  font-weight: 600;
  margin: 0 0 24px;
}
.faq-item {
  padding: 18px 0;
  border-bottom: 1px solid var(--rule);
}
.faq-item:last-child { border-bottom: none; }
.faq-item h3 {
  font-family: var(--serif);
  font-size: 16.5px;
  font-weight: 600;
  margin: 0 0 6px;
}
.faq-item p {
  color: var(--ink-soft);
  font-size: 15px;
  margin: 0;
}

footer.site {
  border-top: 1px solid var(--rule);
  padding: 28px 0 48px;
  font-family: var(--mono);
  font-size: 12.5px;
  color: var(--ink-soft);
}
footer.site .wrap {
  max-width: 920px;
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 12px;
}
footer.site a { color: var(--ink-soft); }

/* ---------- pSEO pages ---------- */
.page-header {
  padding: 44px 0 8px;
}
.page-header .wrap { max-width: 920px; }
.page-header h1 {
  font-family: var(--serif);
  font-size: 32px;
  font-weight: 600;
  letter-spacing: -0.01em;
  margin: 0 0 12px;
  max-width: 640px;
}
.page-header p.lede {
  color: var(--ink-soft);
  font-size: 17px;
  max-width: 560px;
}
.breadcrumb {
  font-family: var(--mono);
  font-size: 12px;
  color: var(--rule-strong);
  margin-bottom: 14px;
}
.breadcrumb a { color: var(--ink-soft); }

.rate-box {
  display: inline-block;
  font-family: var(--mono);
  background: var(--pass-bg);
  color: var(--pass);
  padding: 10px 16px;
  border-radius: 2px;
  font-size: 14px;
  margin: 18px 0 8px;
}

/* ---------- Responsive ---------- */
@media (max-width: 640px) {
  body { font-size: 16px; }
  .hero h1 { font-size: 30px; }
  .hero { padding: 40px 0 28px; }
  .price-grid { grid-template-columns: 1fr; }
  header.site .wrap { flex-direction: column; align-items: flex-start; gap: 10px; }
  nav.site-nav a { margin-left: 0; margin-right: 16px; }
  .dropzone { padding: 32px 18px; }
  .verdict-banner { flex-wrap: wrap; }
  .verdict-banner .status-sub { margin-left: 0; }
}

@media (prefers-reduced-motion: reduce) {
  * { animation: none !important; transition: none !important; }
}