* {
  box-sizing: border-box;
}

:root {
  --bg: #ffffff;
  --panel: #f6f8fb;
  --panel2: #eef3fb;
  --text: #111111;
  --muted: #555555;
  --border: #1f2937;
  --line: #cbd5e1;
  --blue: #0047b3;
  --blue2: #dbeafe;
  --danger: #b91c1c;
  --max: 980px;
}

html[data-theme="dark"] {
  --bg: #080a0f;
  --panel: #111827;
  --panel2: #0f172a;
  --text: #f8fafc;
  --muted: #a9b4c5;
  --border: #e5e7eb;
  --line: #334155;
  --blue: #60a5fa;
  --blue2: #10223d;
  --danger: #f87171;
}

body.reader-mode {
  font-size: 19px;
  line-height: 1.85;
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: Georgia, "Times New Roman", serif;
  line-height: 1.6;
}

button,
input,
select,
textarea {
  font: inherit;
}

.site-header {
  background: var(--bg);
  border-bottom: 2px solid var(--border);
}

.top-line {
  height: 6px;
  background: var(--blue);
  border-bottom: 2px solid var(--border);
}

.header-inner {
  max-width: var(--max);
  margin: auto;
  padding: 20px 18px;
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 18px;
}

.brand-button {
  background: transparent;
  color: var(--text);
  border: 0;
  padding: 0;
  text-align: left;
  cursor: pointer;
}

.brand-button h1 {
  margin: 0;
  font-family: Arial, Helvetica, sans-serif;
  text-transform: uppercase;
  letter-spacing: -0.04em;
  font-size: 31px;
}

.brand-button p {
  margin: 2px 0 0;
  color: var(--muted);
  font-family: Arial, Helvetica, sans-serif;
  font-size: 13px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.top-nav {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
}

.nav-btn,
.primary-btn,
.plain-link {
  border: 2px solid var(--border);
  background: var(--bg);
  color: var(--text);
  padding: 8px 12px;
  cursor: pointer;
  box-shadow: 3px 3px 0 var(--border);
  border-radius: 0;
}

.nav-btn:hover,
.plain-link:hover {
  background: var(--panel2);
}

.primary-btn {
  background: var(--blue);
  color: #ffffff;
  font-weight: bold;
}

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

.page {
  max-width: var(--max);
  margin: auto;
  padding: 28px 18px 60px;
}

.hidden {
  display: none !important;
}

.intro-box {
  border: 2px solid var(--border);
  background: var(--panel);
  padding: 28px;
  margin-bottom: 22px;
  box-shadow: 5px 5px 0 var(--border);
}

.small-label {
  font-family: Arial, Helvetica, sans-serif;
  color: var(--blue);
  font-size: 12px;
  font-weight: bold;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  margin: 0 0 8px;
}

.intro-box h2 {
  font-family: Arial, Helvetica, sans-serif;
  font-size: 36px;
  line-height: 1.1;
  margin: 0 0 14px;
  letter-spacing: -0.04em;
}

.intro-box p:last-child {
  margin-bottom: 0;
  color: var(--muted);
}

.tool-row {
  display: grid;
  grid-template-columns: 1fr 220px;
  gap: 10px;
  margin-bottom: 20px;
}

.text-input {
  width: 100%;
  border: 2px solid var(--border);
  background: var(--bg);
  color: var(--text);
  padding: 11px 12px;
  border-radius: 0;
}

.text-input:focus {
  outline: 3px solid var(--blue2);
}

.article-list {
  display: grid;
  gap: 14px;
}

.article-card {
  border: 2px solid var(--border);
  background: var(--bg);
  padding: 20px;
  cursor: pointer;
  box-shadow: 4px 4px 0 var(--line);
}

.article-card:hover {
  box-shadow: 6px 6px 0 var(--blue);
}

.article-card h3 {
  font-family: Arial, Helvetica, sans-serif;
  font-size: 24px;
  margin: 0 0 8px;
  letter-spacing: -0.03em;
}

.article-card p {
  margin: 0 0 14px;
  color: var(--muted);
}

.article-meta {
  color: var(--muted);
  font-family: Arial, Helvetica, sans-serif;
  font-size: 13px;
  text-transform: uppercase;
  letter-spacing: 0.06em;
}

.tag-row {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.tag {
  display: inline-block;
  border: 1px solid var(--blue);
  background: var(--blue2);
  color: var(--blue);
  padding: 3px 8px;
  font-family: Arial, Helvetica, sans-serif;
  font-size: 13px;
  cursor: pointer;
}

.article-page {
  max-width: 760px;
  margin: 22px auto;
}

.article-page h2 {
  font-family: Arial, Helvetica, sans-serif;
  font-size: 42px;
  line-height: 1.08;
  letter-spacing: -0.05em;
  margin: 10px 0;
}

.article-content {
  margin-top: 26px;
  font-size: 18px;
}

.article-content p {
  margin: 0 0 18px;
}

.article-content h2,
.article-content h3 {
  font-family: Arial, Helvetica, sans-serif;
  margin-top: 34px;
}

.article-content a {
  color: var(--blue);
  text-decoration: underline;
}

.imported-image {
  margin: 22px 0;
  border: 2px solid var(--border);
  background: var(--bg);
  padding: 8px;
}

.imported-image img {
  width: 100%;
  height: auto;
  display: block;
}

.imported-image figcaption {
  margin-top: 7px;
  color: var(--muted);
  font-family: Arial, Helvetica, sans-serif;
  font-size: 13px;
}

.pdf-tools {
  border: 2px dashed var(--line);
  background: var(--bg);
  padding: 14px;
  margin: 18px 0;
}

.help-text {
  color: var(--muted);
  font-family: Arial, Helvetica, sans-serif;
  font-size: 13px;
  margin: 7px 0;
}

.checkbox-line {
  display: flex !important;
  align-items: center;
  gap: 8px;
  font-weight: normal !important;
  margin-top: 10px !important;
}

.checkbox-line input {
  width: auto;
}

.related-box {
  margin-top: 42px;
  border-top: 2px solid var(--border);
  padding-top: 18px;
}

.related-link {
  display: block;
  background: transparent;
  border: 0;
  color: var(--blue);
  text-align: left;
  cursor: pointer;
  padding: 6px 0;
  text-decoration: underline;
}

.admin-panel {
  border: 2px solid var(--border);
  background: var(--panel);
  padding: 22px;
  box-shadow: 5px 5px 0 var(--border);
}

.admin-top {
  display: flex;
  justify-content: space-between;
  gap: 18px;
  align-items: center;
}

.admin-panel h2,
.admin-panel h3 {
  font-family: Arial, Helvetica, sans-serif;
  margin-top: 0;
}

.admin-panel label {
  display: block;
  font-family: Arial, Helvetica, sans-serif;
  font-weight: bold;
  margin: 16px 0 7px;
}

.button-row {
  display: flex;
  gap: 10px;
  margin-top: 16px;
  flex-wrap: wrap;
}

.button-row.right {
  justify-content: flex-end;
}

.status-box {
  border: 2px solid var(--line);
  background: var(--bg);
  padding: 10px;
  color: var(--muted);
}

.admin-list {
  display: grid;
  gap: 10px;
}

.admin-item {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 12px;
  border: 2px solid var(--border);
  background: var(--bg);
  padding: 12px;
}

.site-footer {
  max-width: var(--max);
  margin: auto;
  padding: 25px 18px;
  border-top: 2px solid var(--border);
  color: var(--muted);
  font-family: Arial, Helvetica, sans-serif;
  font-size: 13px;
}

.tiny-admin {
  background: transparent;
  border: 0;
  color: var(--muted);
  cursor: pointer;
  margin-right: 10px;
  font-family: Arial, Helvetica, sans-serif;
  font-size: 12px;
}

.login-dialog {
  border: 2px solid var(--border);
  background: var(--bg);
  color: var(--text);
  padding: 0;
  width: min(380px, calc(100% - 28px));
  border-radius: 0;
  box-shadow: 6px 6px 0 var(--border);
}

.login-dialog::backdrop {
  background: rgba(0, 0, 0, 0.45);
}

.login-dialog form {
  padding: 22px;
}

.login-dialog h2 {
  font-family: Arial, Helvetica, sans-serif;
  margin-top: 0;
}

.error-text {
  min-height: 20px;
  color: var(--danger);
}

.empty {
  border: 2px dashed var(--line);
  background: var(--panel);
  padding: 22px;
  color: var(--muted);
}

@media (max-width: 720px) {
  .header-inner {
    flex-direction: column;
    align-items: flex-start;
  }

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

  .brand-button h1 {
    font-size: 25px;
  }

  .intro-box h2,
  .article-page h2 {
    font-size: 31px;
  }
}


.footer-links {
  display: inline-flex;
  gap: 12px;
  margin-left: 16px;
  flex-wrap: wrap;
}

.footer-links a {
  color: var(--blue);
  text-decoration: underline;
}

.legal-page {
  max-width: 820px;
  margin: 0 auto;
  padding: 30px 18px 70px;
}

.legal-page h1,
.legal-page h2 {
  font-family: Arial, Helvetica, sans-serif;
  letter-spacing: -0.03em;
}

.legal-page h1 {
  font-size: 38px;
  border-bottom: 2px solid var(--border);
  padding-bottom: 14px;
}

.legal-page h2 {
  margin-top: 32px;
}

.legal-page p,
.legal-page li {
  color: var(--text);
}

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

.legal-box {
  border: 2px solid var(--border);
  background: var(--panel);
  padding: 18px;
  box-shadow: 4px 4px 0 var(--border);
}

.legal-page a {
  color: var(--blue);
}


.article-url {
  margin-top: 12px !important;
  font-family: Arial, Helvetica, sans-serif;
  font-size: 12px;
  color: var(--blue) !important;
  word-break: break-all;
}