:root {
  --ink: #1b2430;
  --muted: #5a6675;
  --line: #d5dbe3;
  --bg: #f5f7fa;
  --card: #ffffff;
  --accent: #0b5cad;
  --accent-ink: #ffffff;
  --ok: #17663a;
  --ok-bg: #e6f4ec;
  --fail: #a32020;
  --fail-bg: #fbeaea;
  --warn: #7a5200;
  --warn-bg: #fff4d6;
}

* {
  box-sizing: border-box;
}

[hidden] {
  display: none !important;
}

html {
  font-size: 100%;
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font-family: system-ui, -apple-system, "Segoe UI", Roboto, Arial, sans-serif;
  line-height: 1.5;
}

.wrap {
  max-width: 62rem;
  margin: 0 auto;
  padding: 1rem;
}

h1 {
  font-size: 1.6rem;
  line-height: 1.25;
  margin: 0.5rem 0;
}

h2 {
  font-size: 1.25rem;
  margin: 0 0 0.75rem;
}

h3 {
  font-size: 1.05rem;
  margin: 1.5rem 0 0.5rem;
  padding-bottom: 0.25rem;
  border-bottom: 1px solid var(--line);
}

h4 {
  font-size: 1rem;
  margin: 1rem 0 0.25rem;
}

p {
  margin: 0.5rem 0;
}

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

code,
.mono {
  font-family: ui-monospace, "Cascadia Mono", Consolas, "Liberation Mono", monospace;
  font-size: 0.9em;
  overflow-wrap: anywhere;
}

.lead {
  color: var(--muted);
  max-width: 48rem;
}

.muted {
  color: var(--muted);
}

.small {
  font-size: 0.875rem;
}

.notice {
  background: var(--warn-bg);
  border: 1px solid #e3c877;
  border-radius: 6px;
  padding: 0.6rem 0.9rem;
  margin: 1rem 0;
  font-size: 0.925rem;
}

.notice p {
  margin: 0.2rem 0;
}

.tabs {
  display: flex;
  flex-wrap: wrap;
  gap: 0.25rem;
  margin: 1rem 0 0;
  border-bottom: 2px solid var(--accent);
}

.tab {
  appearance: none;
  border: 1px solid var(--line);
  border-bottom: 0;
  border-radius: 6px 6px 0 0;
  background: #e9edf2;
  color: var(--ink);
  font: inherit;
  padding: 0.5rem 0.9rem;
  cursor: pointer;
}

.tab.active {
  background: var(--accent);
  border-color: var(--accent);
  color: var(--accent-ink);
  font-weight: 600;
}

.tab-paid::after {
  content: " *";
}

.panel {
  background: var(--card);
  border: 1px solid var(--line);
  border-top: 0;
  border-radius: 0 0 6px 6px;
  padding: 1rem;
}

.grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(14rem, 1fr));
  gap: 0.6rem 1rem;
}

.field {
  display: flex;
  flex-direction: column;
}

.field-wide {
  grid-column: 1 / -1;
}

label {
  font-size: 0.875rem;
  font-weight: 600;
  margin-bottom: 0.15rem;
}

.check {
  display: flex;
  align-items: flex-start;
  gap: 0.5rem;
  margin: 0.75rem 0;
}

.check label {
  font-size: 1rem;
  margin: 0;
}

.check input {
  margin-top: 0.3rem;
}

input[type="text"],
input[type="date"],
input[type="email"],
input[type="tel"],
select,
textarea {
  width: 100%;
  font: inherit;
  color: inherit;
  background: #fff;
  border: 1px solid #aab4c0;
  border-radius: 4px;
  padding: 0.4rem 0.5rem;
}

input:disabled {
  background: #eef0f3;
  color: var(--muted);
}

input:focus,
select:focus,
textarea:focus,
button:focus {
  outline: 2px solid var(--accent);
  outline-offset: 1px;
}

textarea {
  min-height: 9rem;
  resize: vertical;
}

textarea.xml {
  min-height: 14rem;
  font-family: ui-monospace, "Cascadia Mono", Consolas, "Liberation Mono", monospace;
  font-size: 0.8rem;
  white-space: pre;
}

.btn {
  appearance: none;
  font: inherit;
  border: 1px solid var(--accent);
  border-radius: 4px;
  background: #fff;
  color: var(--accent);
  padding: 0.45rem 0.9rem;
  cursor: pointer;
}

.btn-primary {
  background: var(--accent);
  color: var(--accent-ink);
  font-weight: 600;
}

.btn-small {
  padding: 0.2rem 0.5rem;
  font-size: 0.875rem;
}

.btn:disabled {
  border-color: var(--line);
  color: var(--muted);
  background: #eef0f3;
  cursor: not-allowed;
}

.actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  align-items: center;
  margin: 0.9rem 0;
}

.save-box {
  margin: 0.9rem 0;
  padding: 0.75rem;
  border: 1px solid var(--line);
  border-radius: 4px;
  background: var(--card);
}

.table-scroll {
  overflow-x: auto;
}

table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.925rem;
}

th,
td {
  text-align: left;
  vertical-align: top;
  padding: 0.35rem 0.45rem;
  border-bottom: 1px solid var(--line);
}

th {
  background: #eef1f5;
  font-weight: 600;
}

.lines-table input,
.lines-table select {
  min-width: 5rem;
}

.lines-table .line-name {
  min-width: 12rem;
}

.line-no {
  width: 2rem;
  color: var(--muted);
}

.status {
  border-radius: 6px;
  padding: 0.6rem 0.9rem;
  font-weight: 600;
  margin: 0.75rem 0;
}

.status-ok {
  background: var(--ok-bg);
  color: var(--ok);
  border: 1px solid #9fd0b2;
}

.status-fail {
  background: var(--fail-bg);
  color: var(--fail);
  border: 1px solid #e3a5a5;
}

.status-info {
  background: #e8f0fa;
  color: #123f73;
  border: 1px solid #a9c4e4;
  font-weight: 400;
}

.level-error {
  color: var(--fail);
  font-weight: 600;
}

.level-warning {
  color: var(--warn);
  font-weight: 600;
}

.facts {
  display: grid;
  grid-template-columns: max-content 1fr;
  gap: 0.15rem 1rem;
  margin: 0.5rem 0;
}

.facts dt {
  color: var(--muted);
}

.facts dd {
  margin: 0;
}

.missing {
  background: var(--fail-bg);
  border: 1px solid #e3a5a5;
  border-radius: 6px;
  padding: 0.6rem 0.9rem;
  margin: 0.75rem 0;
}

.missing ul {
  margin: 0.25rem 0 0;
  padding-left: 1.2rem;
}

.locked {
  background: #f0f3f7;
  border: 1px dashed #9aa7b6;
  border-radius: 6px;
  padding: 0.9rem;
}

.locked ul,
.plain-list {
  padding-left: 1.2rem;
  margin: 0.4rem 0;
}

.finding {
  border: 1px solid var(--line);
  border-left: 4px solid var(--fail);
  border-radius: 4px;
  padding: 0.5rem 0.8rem;
  margin: 0.75rem 0;
  break-inside: avoid;
}

.finding-warning {
  border-left-color: #c58a00;
}

.finding h4 {
  margin-top: 0;
}

.rule-list {
  columns: 2;
  padding-left: 1.2rem;
  font-size: 0.85rem;
}

footer {
  margin: 1.5rem 0 2rem;
  color: var(--muted);
  font-size: 0.875rem;
}

.site-nav {
  display: flex;
  flex-wrap: wrap;
  gap: 0.25rem 1rem;
  margin: 0.5rem 0 1rem;
  padding-bottom: 0.5rem;
  border-bottom: 1px solid var(--line);
  font-size: 0.925rem;
}

.article {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 6px;
  padding: 1rem 1.25rem;
}

.article h2 {
  margin-top: 1.5rem;
}

.article p,
.article li,
.article dd {
  max-width: 46rem;
}

.article ul,
.article ol {
  padding-left: 1.2rem;
}

.article dt {
  font-weight: 600;
  margin-top: 0.9rem;
}

.article dd {
  margin: 0.2rem 0 0;
}

a.btn {
  display: inline-block;
  text-decoration: none;
}

@media (max-width: 40rem) {
  .rule-list {
    columns: 1;
  }

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

@media print {
  body {
    background: #fff;
  }

  .no-print {
    display: none !important;
  }

  .wrap {
    max-width: none;
    padding: 0;
  }

  .panel {
    border: 0;
    padding: 0;
  }
}