:root {
  --fs-primary: #0052cc;
  --fs-primary-hover: #0747a6;
  --fs-bg: #f4f5f7;
  --fs-surface: #ffffff;
  --fs-border: #dfe1e6;
  --fs-text: #172b4d;
  --fs-muted: #6b778c;
  --fs-success-bg: #e3fcef;
  --fs-danger-bg: #ffebe6;
  --fs-success-text: #006644;
  --fs-danger-text: #bf2600;
  --fs-radius: 6px;
  --fs-shadow: 0 1px 2px rgba(9, 30, 66, 0.13);
  --fs-top-height: 72px;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  background: var(--fs-bg);
  color: var(--fs-text);
  font-family: Inter, -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  line-height: 1.45;
}

a { color: var(--fs-primary); text-decoration: none; }
a:hover { color: var(--fs-primary-hover); text-decoration: none; }

.header {
  position: sticky;
  top: 0;
  z-index: 20;
  height: var(--fs-top-height);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 24px;
  background: var(--fs-surface);
  border-bottom: 1px solid var(--fs-border);
}

.header h1 {
  margin: 0;
  font-size: 20px;
  font-weight: 600;
  color: var(--fs-text);
}

.header .description {
  margin-top: 2px;
  font-size: 12px;
  color: var(--fs-muted);
}

.get-code { position: relative; }
.get-code-btn {
  border: 1px solid var(--fs-primary);
  background: var(--fs-primary);
  color: #fff;
  border-radius: 4px;
  padding: 8px 12px;
  font-size: 13px;
  font-weight: 600;
  cursor: pointer;
}
.get-code-btn:hover { background: var(--fs-primary-hover); border-color: var(--fs-primary-hover); }
.get-code-popup {
  display: none;
  position: absolute;
  right: 0;
  top: 100%;
  margin-top: 8px;
  min-width: 280px;
  background: var(--fs-surface);
  border: 1px solid var(--fs-border);
  border-radius: var(--fs-radius);
  box-shadow: 0 8px 16px rgba(9, 30, 66, 0.18);
  z-index: 30;
}
.get-code.open .get-code-popup { display: block; }
.popup-section { padding: 12px; border-bottom: 1px solid var(--fs-border); }
.popup-section:last-child { border-bottom: 0; }
.popup-label { margin-bottom: 8px; font-size: 12px; color: var(--fs-muted); font-weight: 600; }
.popup-clone, .popup-download {
  border: 1px solid var(--fs-border);
  background: #fafbfc;
  border-radius: 4px;
}
.popup-clone { padding: 8px 10px; font-size: 12px; cursor: pointer; word-break: break-all; }
.popup-download { display: inline-block; padding: 6px 10px; font-size: 12px; margin-right: 8px; }

.mainmenu {
  background: var(--fs-surface);
  border-bottom: 1px solid var(--fs-border);
  padding: 0 24px;
  white-space: nowrap;
  overflow-x: auto;
}

.mainmenu a {
  display: inline-block;
  padding: 12px 14px;
  margin-bottom: 0;
  margin-right: 2px;
  border-radius: 4px;
  color: var(--fs-text);
  font-size: 14px;
  border: 1px solid transparent;
  border-bottom-width: 2px;
}

.mainmenu a:hover { background: #ebecf0; border-color: var(--fs-border); }
.mainmenu a.active {
  background: #deebff;
  color: #0747a6;
  border-color: #b3d4ff;
  border-bottom-color: var(--fs-primary);
  font-weight: 600;
}

.submenu,
div.content,
.footer {
  margin-left: 24px;
  margin-right: 24px;
}

.submenu {
  margin-top: 16px;
  background: var(--fs-surface);
  border: 1px solid var(--fs-border);
  border-radius: var(--fs-radius);
  padding: 10px 12px;
  box-shadow: var(--fs-shadow);
}

.submenu a, .submenu select, .submenu input[type="text"] {
  border: 1px solid var(--fs-border);
  border-radius: 4px;
  background: #fafbfc;
  color: var(--fs-text);
  font-size: 13px;
  padding: 6px 10px;
  margin-right: 6px;
}
.submenu .label {
  font-weight: 600;
  background: #deebff;
  border-color: #b3d4ff;
  color: #0747a6;
}

div.content {
  margin-top: 14px;
  background: var(--fs-surface);
  border: 1px solid var(--fs-border);
  border-radius: var(--fs-radius);
  box-shadow: var(--fs-shadow);
  padding: 20px 22px;
}

.content p {
  margin: 0 0 12px;
  color: var(--fs-muted);
}

.content ol,
.content ul {
  margin: 0 0 16px;
  padding-left: 20px;
}

.content li {
  margin: 6px 0;
}

body.ticket .content ol li,
body.ticket .content ul li {
  background: #fafbfc;
  border: 1px solid var(--fs-border);
  border-radius: 4px;
  padding: 10px 12px;
  list-style-position: inside;
}

h2 { margin: 0 0 16px; font-size: 28px; font-weight: 600; color: var(--fs-text); }
h3 { margin: 16px 0 10px; }

table { width: 100%; border-collapse: collapse; }
th, td { border-bottom: 1px solid var(--fs-border); padding: 10px 12px; vertical-align: top; }
th { background: #fafbfc; color: var(--fs-muted); font-size: 12px; text-transform: uppercase; letter-spacing: 0.02em; }
tbody tr:hover td { background: #f7f8f9; }

.timelineTable { border: 1px solid var(--fs-border); border-radius: var(--fs-radius); overflow: hidden; }
.timelineDateRow td { background: #fafbfc; color: var(--fs-muted); font-weight: 600; }
.timelineModernCell { font-size: 14px; }

.columns.files { columns: unset !important; }
ul.browser {
  margin: 0;
  padding: 0;
  list-style: none;
}
ul.browser li a {
  display: block;
  padding: 6px 10px;
  color: var(--fs-text);
  font-size: 13px;
  line-height: 1.25;
}

/* GitHub-like file list: no inner scroll, full-page natural flow */
body.dir .columns.files {
  max-height: none;
  overflow: visible;
  border: 0;
  border-radius: 0;
  background: transparent;
}

/* Directory-first emphasis, file-second visual weight */
body.dir ul.browser {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
  gap: 2px 12px;
}

body.dir ul.browser li {
  border: 0;
  border-radius: 0;
  background: transparent;
}

body.dir ul.browser li:hover {
  background: #f7f8f9;
}

body.dir ul.browser li.dir a {
  font-weight: 600;
  color: #0747a6;
  background: transparent;
}

body.dir ul.browser li.file a {
  font-weight: 400;
  color: var(--fs-text);
}

body.dir ul.browser li.dir a::before {
  content: "▸ ";
  display: inline-block;
  width: 1.2em;
  text-align: center;
}

body.dir ul.browser li.file a::before {
  content: "· ";
  display: inline-block;
  width: 1.2em;
  text-align: center;
}

body.dir ul.browser li a {
  padding: 3px 6px;
  font-size: 12px;
  line-height: 1.2;
  white-space: nowrap;
}

table.diff {
  border: 1px solid var(--fs-border);
  border-radius: var(--fs-radius);
  overflow: hidden;
  background: var(--fs-surface);
}
table.diff .diffln {
  width: 52px;
  background: #f7f8f9;
  color: var(--fs-muted);
  text-align: right;
}
table.diff .diffadd { background: var(--fs-success-bg); color: var(--fs-success-text); }
table.diff .diffrm { background: var(--fs-danger-bg); color: var(--fs-danger-text); }

code, pre, tt {
  font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono", "Courier New", monospace;
  font-size: 13px;
}
pre {
  position: relative;
  background: #f7f8fa;
  color: var(--fs-text);
  border: 0;
  border-left: 3px solid #c8ced8;
  padding: 10px 0;
  border-radius: 0;
  overflow-x: auto;
}
code { background: #f0f2f5; border-radius: 4px; padding: 0.15em 0.35em; }
pre code { background: transparent; padding: 0; display: block; }

pre .fs-code-line {
  display: block;
  position: relative;
  padding: 0 12px 0 42px;
  line-height: 1.45;
  white-space: pre;
}

pre .fs-code-line::before {
  content: attr(data-ln);
  position: absolute;
  left: 4px;
  width: 30px;
  text-align: right;
  color: var(--fs-muted);
  user-select: none;
}

.footer {
  margin-top: 16px;
  margin-bottom: 24px;
  color: var(--fs-muted);
  font-size: 12px;
  text-align: center;
}

.header-anchor { opacity: 0; margin-left: 6px; color: var(--fs-muted); }
h1:hover .header-anchor, h2:hover .header-anchor, h3:hover .header-anchor, h4:hover .header-anchor { opacity: 1; }

.copy-btn {
  position: absolute;
  top: 8px;
  right: 8px;
  border: 1px solid var(--fs-border);
  color: var(--fs-text);
  background: #ffffff;
  border-radius: 4px;
  padding: 4px 8px;
  font-size: 12px;
  opacity: 0;
  cursor: pointer;
}
pre:hover .copy-btn { opacity: 1; }

@media (max-width: 980px) {
  .header { height: auto; padding: 12px 16px; }
  .mainmenu {
    white-space: nowrap;
    overflow-x: auto;
    padding: 0 12px;
  }
  .mainmenu a { display: inline-block; margin-right: 4px; margin-bottom: 0; }
  .submenu, div.content, .footer {
    margin-left: 12px;
    margin-right: 12px;
  }
}
