/* gsg — a quiet, text-first interface in the spirit of cgit: hairlines
   instead of boxes, no shadows, no hover animation. The one indulgence is
   a black-and-purple signal color -- used for links, hashes, and a thin
   two-tone stripe at the very top of the page -- so the theme still reads
   as its own thing rather than "yet another dark git UI".

   Loaded on every page: design tokens, reset, nav, page chrome, and the
   handful of components (cards, tables, chips, facts-bar, footer,
   notices) shared by more than one view. View-specific rules live in the
   other files under static/css/, linked only by the views that need
   them. */

:root {
  /* Base — near-black ink */
  --bg:        #0F111A;
  --bg-elev:   #141725;
  --surface:   #1C2032;
  --surface-2: #24283C;
  --line:      #2A3045;
  --line-soft: #2E354E;

  /* Foreground */
  --fg:        #FFFFFF;
  --fg-muted:  #9AA0B3;
  --fg-subtle: #6B7280;

  /* Accent — one signal color, not a rainbow */
  --accent:    #A78BFA;
  --accent-2:  #7C3AED;
  --accent-grad: linear-gradient(90deg, var(--accent), var(--accent-2));

  /* Status colors */
  --add:       #10B981;
  --add-bg:    rgba(16, 185, 129, 0.15);
  --del:       #EF4444;
  --del-bg:    rgba(239, 68, 68, 0.15);

  /* Counterpart to --accent -- tags and other "second kind of thing"
     markers use this instead of a shade too close to the purple accent. */
  --tag: #FAA78B;

  /* Syntax highlighting -- deliberately just four colours (keyword,
     string, number, name) plus a muted comment, not a full-spectrum
     scheme. Blob view only; see static/css/blob.css. */
  --syn-kw:  #818CF8;
  --syn-str: #34D399;
  --syn-num: #FAA78B;
  --syn-fn:  #60A5FA;

  /* Lane colors — spectrum for telling graph lanes apart, independent
     of the brand accent above */
  --lane-0: #818CF8;
  --lane-1: #10B981;
  --lane-2: #F59E0B;
  --lane-3: #EC4899;
  --lane-4: #3B82F6;
  --lane-5: #84CC16;

  /* Typography */
  --mono: ui-monospace, "SFMono-Regular", "JetBrains Mono", "Cascadia Mono",
          Menlo, Consolas, "Liberation Mono", monospace;
  --sans: ui-sans-serif, system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;

  /* Spacing & radius */
  --r: 8px;
  --r-sm: 4px;
  --pad: clamp(.85rem, 2.5vw, 1.5rem);
}

@media (prefers-color-scheme: light) {
  :root {
    --bg:        #F3F4F6;
    --bg-elev:   #FFFFFF;
    --surface:   #FFFFFF;
    --surface-2: #F9FAFB;
    --line:      #E5E7EB;
    --line-soft: #E5E7EB;
    --fg:        #111827;
    --fg-muted:  #6B7280;
    --fg-subtle: #9CA3AF;
    --accent:    #7C3AED;
    --accent-2:  #5B21B6;
    --add:       #059669;
    --del:       #DC2626;
    --tag:       #B45309;
    --syn-kw:    #4F46E5;
    --syn-str:   #047857;
    --syn-num:   #B45309;
    --syn-fn:    #1D4ED8;
  }
}

/* ---------------------------------------------------------------- reset & base */

*, *::before, *::after { box-sizing: border-box; }

html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--fg);
  font-family: var(--mono);
  font-size: 13px;
  line-height: 1.55;
  font-variant-ligatures: none;
  -webkit-font-smoothing: antialiased;
}

/* The one graphic flourish: a thin two-tone stripe, always at the very
   top of the viewport. Small enough to be quiet, present enough to be a
   mark -- the rest of the page is just text and hairlines. */
body::before {
  content: "";
  position: fixed;
  top: 0; left: 0; right: 0;
  height: 3px;
  background: var(--accent-grad);
  z-index: 200;
}

a { color: var(--accent); text-decoration: none; }
a:hover { text-decoration: underline; }

/* Full viewport width, minus a small gutter -- no centered max-width
   column. Anything wide (tables, diffs, the graph) scrolls inside its own
   container instead of forcing the page to scroll horizontally. */
.wrap { width: 100%; margin: 0; padding-inline: var(--pad); }

/* ---------------------------------------------------------------- navigation */

.nav {
  position: sticky; top: 3px; z-index: 100;
  background: var(--bg-elev);
  border-bottom: 1px solid var(--line);
}
.nav-inner {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto minmax(0, 1fr);
  align-items: center;
  gap: .75rem;
  height: 3rem;
}

.nav-start {
  display: flex; align-items: center; gap: .75rem;
  grid-column: 1;
  min-width: 0;
}

.nav-end {
  grid-column: 3;
  justify-self: end;
}

.brand {
  display: flex; align-items: center; gap: .5rem;
  color: var(--fg); font-weight: 700; font-size: .95rem;
  letter-spacing: -.02em;
}
.brand .logo {
  width: 22px; height: 22px;
  background: var(--accent);
  border-radius: var(--r-sm);
  display: grid; place-items: center;
  color: var(--bg); font-weight: 700; font-size: .78rem;
}
.brand:hover { color: var(--accent); text-decoration: none; }

.repo-name {
  color: var(--fg); font-weight: 600;
  margin-left: .5rem;
}
.nav-repo-name { color: var(--line); }
.nav-repo-name:hover { color: var(--accent); }

/* Tabs — plain text, an underline marks the current page */
.tabs {
  display: flex; gap: 1rem;
  grid-column: 2;
  justify-self: center;
}
.tab {
  padding: .2rem 0;
  color: var(--fg-muted);
  font-size: .78rem;
  border-bottom: 2px solid transparent;
}
.tab:hover {
  color: var(--fg);
  text-decoration: none;
}
.tab.active {
  color: var(--fg);
  border-bottom-color: var(--accent);
}

/* Ref picker — plain, borderless select */
.refpicker {
  position: relative;
}
.refpicker select {
  font: inherit; font-size: .78rem;
  color: var(--fg-muted);
  background: none;
  border: 1px solid var(--line);
  border-radius: var(--r-sm);
  padding: .25rem 1.75rem .25rem .6rem;
  cursor: pointer;
  appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 12 12'%3E%3Cpath fill='%236B7280' d='M6 8L1 3h10z'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right .6rem center;
  background-size: 10px 10px;
}
.refpicker select:hover { border-color: var(--accent); color: var(--fg); }
.refpicker select:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: -2px;
}

/* ---------------------------------------------------------------- page layout */

main.wrap { padding-top: 1.25rem; padding-bottom: 2rem; }

/* Hero: a plain text header with a hairline underneath -- no box, no
   gradient. The page title carries the weight instead of a card. */
.hero {
  margin-bottom: 1.25rem;
  padding-bottom: .9rem;
  border-bottom: 1px solid var(--line);
}

.page-title {
  margin: 0;
  font-size: 1.3rem;
  font-weight: 700;
  letter-spacing: -.02em;
  line-height: 1.25;
}
.page-subtitle {
  margin: .35rem 0 0;
  color: var(--fg-muted);
  font-size: .82rem;
}

.breadcrumbs {
  display: flex; flex-wrap: wrap; gap: .4rem;
  align-items: baseline;
  margin-top: 1rem;
  font-size: .9rem;
  color: var(--fg-muted);
}
.breadcrumbs a { color: var(--accent); }
.breadcrumbs .here { color: var(--fg); }

/* ---------------------------------------------------------------- cards & containers */

/* Reserved for content that genuinely needs a boundary (a diff, a grouped
   sub-section) -- a thin border, nothing else. Most pages don't use it. */
.card {
  border: 1px solid var(--line);
  border-radius: var(--r);
  padding: .7rem .9rem;
  margin-bottom: .75rem;
}

/* Facts bar — a plain line of label: value pairs, cgit-style, not a grid
   of stat tiles. */
.facts-bar {
  display: flex;
  flex-wrap: wrap;
  column-gap: 1.5rem;
  row-gap: .3rem;
  margin-bottom: 1rem;
  font-size: .82rem;
}
.fact { display: flex; gap: .4rem; align-items: baseline; }
.fact-label {
  color: var(--fg-subtle);
}
.fact-label::after { content: ":"; }
.fact-value {
  color: var(--fg);
  font-weight: 600;
}

/* ---------------------------------------------------------------- tables */

/* Borderless, hairline-separated rows -- like cgit's listings -- rather
   than a bordered card. Tables can still be wider than the viewport (long
   paths, many columns on mobile); scrolling lives on the table itself so
   the page body never gains a horizontal scrollbar. */
.table-wrap { overflow-x: auto; }
.table {
  width: 100%;
  border-collapse: collapse;
}
.table th {
  color: var(--fg-subtle);
  font-size: .68rem;
  text-transform: uppercase;
  letter-spacing: .07em;
  padding: .4rem .6rem;
  text-align: left;
  font-weight: 600;
  border-bottom: 1px solid var(--line);
}
.table td {
  padding: .4rem .6rem;
  border-bottom: 1px solid var(--line-soft);
  vertical-align: middle;
}
.table tr:hover td {
  background: var(--surface-2);
}

/* ---------------------------------------------------------------- chips & badges */

.chips {
  display: flex;
  flex-wrap: wrap;
  gap: .4rem;
  list-style: none;
  margin: 0;
  padding: 0;
}
/* Plain bordered tags, not filled pill badges. */
.chip {
  display: inline-flex;
  align-items: center;
  gap: .35rem;
  font-size: .7rem;
  padding: .2rem .5rem;
  border: 1px solid var(--line);
  border-radius: var(--r-sm);
  color: var(--fg-muted);
  background: none;
}
.chip:hover {
  border-color: var(--accent);
  color: var(--fg);
  text-decoration: none;
}
.chip-tag:hover {
    border-color: var(--tag);
}
.chip-branch { color: var(--accent); border-color: currentColor; }
.chip-tag { color: var(--tag); border-color: currentColor; }
.chip-ok { color: var(--add); border-color: currentColor; }
.chip-bad { color: var(--del); border-color: currentColor; }

/* ---------------------------------------------------------------- footer */

footer {
  margin-top: 1.5rem;
  padding: 1rem 0;
  border-top: 1px solid var(--line);
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: .75rem;
  font-size: .8rem;
}
footer .footer-left {
  display: flex;
  gap: .75rem;
  align-items: center;
}
footer .footer-right {
  color: var(--fg-subtle);
  font-size: .75rem;
}
footer a { color: var(--accent); }

/* ---------------------------------------------------------------- notices */

.notice {
  padding: .5rem .8rem;
  border-left: 2px solid var(--accent);
  color: var(--fg-muted);
  font-size: .8rem;
  margin: .75rem 0;
}

/* ---------------------------------------------------------------- error page */

.error-page { padding-top: 3rem; padding-bottom: 3rem; text-align: center; }
.error-code {
  font-size: 3rem;
  font-weight: 700;
  color: var(--accent);
  margin: 0;
  letter-spacing: -.03em;
}
.error-page .page-title { margin-top: .25rem; }
.error-page .page-subtitle { margin-bottom: 1rem; }

/* ---------------------------------------------------------------- responsive */

@media (max-width: 640px) {
  .nav-inner {
    display: flex;
    flex-wrap: wrap;
    height: auto; padding-block: .5rem;
  }
  .nav-start { flex: 1 1 auto; }
  .nav-end { margin-left: auto; }
  .tabs {
    justify-self: auto;
    width: 100%;
    order: 3;
    gap: .75rem;
  }
  .facts-bar {
    flex-direction: column;
    gap: .25rem;
  }
  .hero { padding-bottom: .7rem; }
  .page-title {
    font-size: 1.1rem;
  }
}

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

/* ---------------------------------------------------------------- utilities */

.hidden { display: none !important; }
.muted { color: var(--fg-muted); }
.text-accent { color: var(--accent); }
.font-mono { font-family: var(--mono); }
.w-full { width: 100%; }
.text-right { text-align: right !important; }
.text-center { text-align: center !important; }
.text-sm { font-size: .85rem; }
.text-xs { font-size: .75rem; }

/* Focus states for accessibility */
:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
}

/* Scrollbar styling */
::-webkit-scrollbar {
  height: 8px;
  width: 8px;
}
::-webkit-scrollbar-track {
  background: var(--bg-elev);
  border-radius: 4px;
}
::-webkit-scrollbar-thumb {
  background: var(--line);
  border-radius: 4px;
}
::-webkit-scrollbar-thumb:hover {
  background: var(--fg-subtle);
}