/* ============================================================================
   HydraGit Documentation — dark theme, teal primary + amber secondary.
   Palette grounded in the product's own design tokens
   (docs/PROJECT_CONTEXT.md → Design tokens).
   ============================================================================ */

:root {
  /* Accents */
  --teal:        #56c8e8;
  --teal-dim:    #3a8aa3;
  --teal-bg:     rgba(86, 200, 232, 0.10);
  --teal-border: rgba(86, 200, 232, 0.28);

  --amber:       #e3b341;
  --amber-dim:   #9a7b2c;
  --amber-bg:    rgba(227, 179, 65, 0.10);
  --amber-border:rgba(227, 179, 65, 0.30);

  --green:       #4ec94e;
  --red:         #f07070;
  --purple:      #9a7ae8;
  --hash:        #6fa8dc;

  /* Surfaces */
  --bg-0:   #0f1417;   /* page */
  --bg-1:   #151b1f;   /* cards */
  --bg-2:   #1b2329;   /* raised */
  --bg-3:   #222c33;   /* hover */
  --line:   #243038;
  --line-2: #2e3a42;

  /* Text */
  --fg:     #d7dee2;
  --fg-2:   #a6b0b6;
  --fg-3:   #6e7a82;
  --fg-4:   #4a555c;

  --mono: ui-monospace, SFMono-Regular, "SF Mono", Menlo, Consolas, monospace;
  --sans: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;

  --radius: 9px;
  --maxw: 1180px;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; scroll-padding-top: 78px; }

body {
  margin: 0;
  font-family: var(--sans);
  font-size: 15px;
  line-height: 1.6;
  color: var(--fg);
  background:
    radial-gradient(1100px 520px at 78% -8%, rgba(86,200,232,0.08), transparent 60%),
    radial-gradient(900px 480px at 8% 4%, rgba(227,179,65,0.05), transparent 55%),
    var(--bg-0);
  background-attachment: fixed;
  -webkit-font-smoothing: antialiased;
}

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

code, kbd { font-family: var(--mono); }

/* ── Top bar ─────────────────────────────────────────────────────────────── */
.topbar {
  position: sticky;
  top: 0;
  z-index: 50;
  display: flex;
  align-items: center;
  gap: 18px;
  padding: 12px 26px;
  background: rgba(15, 20, 23, 0.82);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--line);
}
.brand {
  display: inline-flex;
  align-items: center;
  gap: 9px;
  font-weight: 700;
  letter-spacing: 0.2px;
  color: var(--fg);
  font-size: 16px;
}
.brand:hover { text-decoration: none; color: #fff; }
.brand .hex { color: var(--teal); font-size: 19px; }
.brand-icon {
  display: block;
  width: 22px;
  height: 22px;
  border-radius: 6px;
  object-fit: contain;
  filter: drop-shadow(0 1px 3px rgba(86, 200, 232, 0.35));
}
.brand span { color: var(--amber); font-weight: 600; }
.crumbs { color: var(--fg-3); font-size: 13px; }
.crumbs a { color: var(--fg-2); }
.crumbs .sep { color: var(--fg-4); margin: 0 7px; }
.topbar .spacer { flex: 1; }
.topbar .ver {
  font-family: var(--mono);
  font-size: 12px;
  color: var(--amber);
  border: 1px solid var(--amber-border);
  background: var(--amber-bg);
  padding: 2px 9px;
  border-radius: 999px;
}

/* ── Layout ──────────────────────────────────────────────────────────────── */
.wrap { max-width: var(--maxw); margin: 0 auto; padding: 0 26px; }

.page {
  max-width: var(--maxw);
  margin: 0 auto;
  padding: 0 26px 90px;
  display: grid;
  grid-template-columns: 230px minmax(0, 1fr);
  gap: 44px;
}
.toc {
  position: sticky;
  top: 78px;
  align-self: start;
  max-height: calc(100vh - 96px);
  overflow: auto;
  padding-top: 34px;
  font-size: 13px;
}
.toc h4 {
  margin: 0 0 10px;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  font-size: 11px;
  color: var(--fg-4);
}
.toc a {
  display: block;
  padding: 4px 11px;
  color: var(--fg-3);
  border-left: 2px solid transparent;
  border-radius: 0 4px 4px 0;
}
.toc a:hover { color: var(--fg); background: var(--bg-1); text-decoration: none; }
.toc a.head { color: var(--fg-2); margin-top: 6px; }

.content { padding-top: 30px; min-width: 0; }
.content > h1 {
  font-size: 33px;
  line-height: 1.18;
  margin: 0 0 6px;
  letter-spacing: -0.4px;
}
.content > h1 .glyph { color: var(--teal); margin-right: 10px; }
.lede {
  font-size: 17px;
  color: var(--fg-2);
  margin: 0 0 30px;
  max-width: 70ch;
}

/* ── Hero (index) ────────────────────────────────────────────────────────── */
.hero {
  max-width: var(--maxw);
  margin: 0 auto;
  padding: 48px 26px 30px;
}
/* Banner as the hero backdrop: hydra art sits on the left, copy overlays the
   empty right half. The left→right gradient darkens the right so text reads,
   and feathers the seam between the artwork and the copy. */
.hero-stage {
  position: relative;
  border-radius: 16px;
  overflow: hidden;
  border: 1px solid var(--line-2);
  aspect-ratio: 1280 / 640;
  display: flex;
  align-items: center;
  justify-content: flex-end;
  background:
    linear-gradient(
      90deg,
      rgba(15, 20, 23, 0) 30%,
      rgba(15, 20, 23, 0.55) 50%,
      rgba(15, 20, 23, 0.92) 68%
    ),
    url("hydragit-banner.png") left center / cover,
    var(--bg-1);
  box-shadow:
    0 1px 0 rgba(255, 255, 255, 0.03) inset,
    0 24px 60px -28px rgba(0, 0, 0, 0.85),
    0 0 0 1px rgba(86, 200, 232, 0.06);
}
.hero-stage::after {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  border-radius: inherit;
  background:
    radial-gradient(120% 160% at 100% 0%, var(--teal-bg), transparent 45%),
    radial-gradient(120% 160% at 100% 100%, var(--amber-bg), transparent 45%);
}
.hero-copy {
  position: relative;
  z-index: 1;
  width: 50%;
  padding: 0 40px 0 12px;
}
.hero-copy .pills { margin-top: 18px; }
.hero h1 {
  font-size: 46px;
  letter-spacing: -1px;
  margin: 0 0 12px;
  line-height: 1.06;
}
.hero h1 .a { color: var(--teal); }
.hero h1 .b { color: var(--amber); }
.hero p {
  font-size: 18px;
  color: var(--fg-2);
  max-width: 64ch;
  margin: 0 0 22px;
}
.hero .pills { display: flex; flex-wrap: wrap; gap: 9px; }
.pill {
  font-size: 12.5px;
  font-family: var(--mono);
  color: var(--fg-2);
  background: var(--bg-1);
  border: 1px solid var(--line);
  padding: 5px 11px;
  border-radius: 999px;
}
.pill b { color: var(--teal); font-weight: 600; }

/* ── Category grid (index) ───────────────────────────────────────────────── */
.cats {
  max-width: var(--maxw);
  margin: 0 auto;
  padding: 18px 26px 90px;
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(330px, 1fr));
  gap: 20px;
}
.cat {
  background: linear-gradient(180deg, var(--bg-1), var(--bg-0));
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 20px 22px 8px;
  transition: border-color 0.15s, transform 0.15s;
}
.cat:hover { border-color: var(--teal-border); transform: translateY(-2px); }
.cat h3 {
  margin: 0 0 4px;
  font-size: 16px;
  display: flex;
  align-items: center;
  gap: 9px;
}
.cat h3 .dot {
  width: 9px; height: 9px; border-radius: 50%;
  background: var(--teal); box-shadow: 0 0 10px var(--teal);
  flex: none;
}
.cat.amber h3 .dot { background: var(--amber); box-shadow: 0 0 10px var(--amber); }
.cat .blurb { color: var(--fg-3); font-size: 13px; margin: 0 0 12px; }
.cat ul { list-style: none; margin: 0; padding: 0 0 12px; }
.cat li { margin: 0; }
.cat li a {
  display: flex;
  align-items: baseline;
  gap: 8px;
  padding: 5px 8px;
  border-radius: 6px;
  color: var(--fg);
  font-size: 13.5px;
}
.cat li a:hover { background: var(--bg-2); text-decoration: none; color: #fff; }
.cat li a .cmd { margin-left: auto; }

/* ── Feature sections ────────────────────────────────────────────────────── */
.feature {
  border-top: 1px solid var(--line);
  padding: 30px 0 8px;
  scroll-margin-top: 80px;
}
.feature:first-of-type { border-top: none; }
.feature h2 {
  font-size: 22px;
  margin: 0 0 4px;
  display: flex;
  align-items: center;
  gap: 11px;
  flex-wrap: wrap;
}
.feature h3 { font-size: 15px; margin: 22px 0 9px; color: var(--fg); }

.lbl {
  text-transform: uppercase;
  letter-spacing: 0.09em;
  font-size: 11px !important;
  color: var(--teal);
  margin: 24px 0 10px !important;
}
.lbl.out { color: var(--amber); }

/* Inline command/code badges */
.cmd {
  font-family: var(--mono);
  font-size: 12px;
  color: var(--teal);
  background: var(--teal-bg);
  border: 1px solid var(--teal-border);
  padding: 1px 8px;
  border-radius: 5px;
  white-space: nowrap;
}
.cmd.amber { color: var(--amber); background: var(--amber-bg); border-color: var(--amber-border); }
p code, li code, td code {
  font-size: 12.5px;
  color: var(--amber);
  background: var(--bg-2);
  border: 1px solid var(--line);
  padding: 0.5px 6px;
  border-radius: 4px;
}

/* Entry-point list */
.entrypoints { list-style: none; margin: 0; padding: 0; display: grid; gap: 9px; }
.entrypoints > li {
  display: grid;
  grid-template-columns: 150px 1fr;
  gap: 14px;
  background: var(--bg-1);
  border: 1px solid var(--line);
  border-left: 3px solid var(--teal);
  border-radius: 0 7px 7px 0;
  padding: 11px 15px;
}
.entrypoints > li .where {
  font-size: 12px;
  font-weight: 600;
  color: var(--teal);
  text-transform: uppercase;
  letter-spacing: 0.04em;
}
.entrypoints > li .what { color: var(--fg-2); font-size: 13.5px; }
.entrypoints > li .what b { color: var(--fg); font-weight: 600; }
.entrypoints > li.kbd { border-left-color: var(--amber); }
.entrypoints > li.kbd .where { color: var(--amber); }

/* "What happens next" numbered flow */
.flow { counter-reset: step; list-style: none; margin: 0; padding: 0; }
.flow > li {
  position: relative;
  padding: 4px 0 14px 38px;
  color: var(--fg-2);
  font-size: 14px;
}
.flow > li::before {
  counter-increment: step;
  content: counter(step);
  position: absolute;
  left: 0; top: 1px;
  width: 24px; height: 24px;
  display: grid; place-items: center;
  font-family: var(--mono);
  font-size: 12px;
  color: var(--teal);
  background: var(--teal-bg);
  border: 1px solid var(--teal-border);
  border-radius: 50%;
}
.flow > li::after {
  content: "";
  position: absolute;
  left: 11px; top: 26px; bottom: 2px;
  width: 1px;
  background: var(--line-2);
}
.flow > li:last-child::after { display: none; }
.flow > li b { color: var(--fg); }
.flow > li .cmd { font-size: 11.5px; }

/* Note / callout boxes */
.note {
  display: flex;
  gap: 11px;
  background: var(--bg-1);
  border: 1px solid var(--line);
  border-left: 3px solid var(--amber);
  border-radius: 0 7px 7px 0;
  padding: 11px 15px;
  margin: 16px 0;
  font-size: 13.5px;
  color: var(--fg-2);
}
.note .ic { color: var(--amber); flex: none; font-weight: 700; }
.note.teal { border-left-color: var(--teal); }
.note.teal .ic { color: var(--teal); }
.note.danger { border-left-color: var(--red); }
.note.danger .ic { color: var(--red); }
.note b { color: var(--fg); }

/* Related cross-links */
.related {
  margin: 22px 0 4px;
  padding: 13px 16px;
  background: var(--bg-1);
  border: 1px dashed var(--line-2);
  border-radius: 7px;
  font-size: 13.5px;
}
.related b { color: var(--fg-3); text-transform: uppercase; font-size: 11px; letter-spacing: 0.08em; margin-right: 6px; }
.related a { margin-right: 4px; }
.related a:not(:last-child)::after { content: " ·"; color: var(--fg-4); margin-left: 6px; }

/* Tables */
table { width: 100%; border-collapse: collapse; margin: 14px 0; font-size: 13.5px; }
th, td { text-align: left; padding: 8px 12px; border-bottom: 1px solid var(--line); vertical-align: top; }
th { color: var(--fg-3); font-weight: 600; font-size: 12px; text-transform: uppercase; letter-spacing: 0.05em; }
tr:hover td { background: var(--bg-1); }

/* Badge chips for statuses / sides */
.chip {
  display: inline-block;
  font-family: var(--mono);
  font-size: 11px;
  padding: 1px 7px;
  border-radius: 4px;
  border: 1px solid var(--line-2);
  color: var(--fg-2);
}
.chip.g { color: var(--green); border-color: rgba(78,201,78,0.4); }
.chip.a { color: var(--amber); border-color: var(--amber-border); }
.chip.r { color: var(--red);   border-color: rgba(240,112,112,0.4); }
.chip.p { color: var(--purple);border-color: rgba(154,122,232,0.4); }

ul.plain { padding-left: 20px; }
ul.plain li { margin: 4px 0; color: var(--fg-2); }
ul.plain li b { color: var(--fg); }

/* Footer */
footer {
  border-top: 1px solid var(--line);
  margin-top: 40px;
  padding: 26px;
  text-align: center;
  color: var(--fg-4);
  font-size: 12.5px;
}
footer a { color: var(--fg-3); }

/* Prev / next */
.pager {
  display: flex;
  justify-content: space-between;
  gap: 12px;
  margin-top: 34px;
  border-top: 1px solid var(--line);
  padding-top: 20px;
}
.pager a {
  flex: 1;
  background: var(--bg-1);
  border: 1px solid var(--line);
  border-radius: 7px;
  padding: 11px 15px;
  color: var(--fg);
}
.pager a:hover { border-color: var(--teal-border); text-decoration: none; }
.pager a small { display: block; color: var(--fg-4); font-size: 11px; text-transform: uppercase; letter-spacing: 0.06em; }
.pager a.next { text-align: right; }

@media (max-width: 880px) {
  .page { grid-template-columns: 1fr; }
  .toc { display: none; }
  .entrypoints > li { grid-template-columns: 1fr; gap: 4px; }

  /* Stack: banner art on top, copy beneath on a solid panel. */
  .hero-stage {
    aspect-ratio: auto;
    flex-direction: column;
    align-items: stretch;
    justify-content: flex-start;
    background:
      url("hydragit-banner.png") top center / contain no-repeat,
      var(--bg-1);
    padding-top: 52%;
  }
  .hero-copy {
    width: 100%;
    padding: 22px 22px 26px;
    background: linear-gradient(180deg, rgba(15, 20, 23, 0) 0%, var(--bg-0) 22%);
  }
}