@import url('https://fonts.googleapis.com/css2?family=Fira+Code:wght@300..700&family=Fira+Sans:ital,wght@0,100;0,200;0,300;0,400;0,500;0,600;0,700;0,800;0,900;1,100;1,200;1,300;1,400;1,500;1,600;1,700;1,800;1,900&family=Google+Sans+Code:ital,wght@0,300..800;1,300..800&display=swap');

/* === Base =============================================================== */
body {
  font-family: "Fira Sans", sans-serif;
  font-weight: 300;
  font-optical-sizing: auto;
  font-style: normal;
  font-variation-settings: "wdth" 100;
  background-color: #1a1a1a !important;
  color: #fff;
  margin: 0 !important;
  padding: 0 !important;
  overflow-x: hidden;
}

.card { background-color: #222; border: none; color: #fff; margin-bottom: 1.5rem; }
.container-xl { max-width: 1140px; margin: 0 auto; padding: 0 15px; }

/* === Navbar & forms ===================================================== */
.navbar { border-bottom: 1px solid rgba(255,255,255,.1); }
.navbar-brand { font-weight: 600; font-size: 1.5rem; display: flex; align-items: center; gap: 8px; }
.nav-link { transition: color .2s; }
.nav-link:hover { color: #0d6efd !important; }

.search-form { max-width: 300px; width: 100%; display: flex; align-items: center; }
.search-form .form-control { background-color: #2a2a2a; border-color: #444; color: #fff; }
.search-form .form-control:focus { background-color: #2a2a2a; border-color: #0d6efd; box-shadow: 0 0 0 .25rem rgba(13,110,253,.25); }
.search-form .btn { border-color: #444; }

.dropdown-menu { background-color: #212529; border: 1px solid rgba(255,255,255,.1); }
.dropdown-item { color:#fff; }
.dropdown-item:hover { background:#0d6efd; color:#fff; }

.modal-content { background:#212529; }
.modal-header { border-bottom: 1px solid rgba(255,255,255,.1); }
.modal-footer { border-top: 1px solid rgba(255,255,255,.1); }

.btn-oauth { display:flex; align-items:center; justify-content:center; gap:8px; }
.navbar-center { flex-grow:1; display:flex; justify-content:center; }
.navbar-toggler { margin-left:15px; }

@media (max-width: 991px){
  .navbar-center { justify-content:center; }
  .search-form { max-width:100%; margin:10px auto; }
  .navbar-nav-guest { margin-top:10px; }
  .navbar-collapse { justify-content:flex-end; }
  .navbar-toggler { margin-left:10px; }
}

/* === reCAPTCHA (dark) =================================================== */
.g-recaptcha { background:#222 !important; border:0 !important; padding:0 !important; margin-bottom:1.5rem !important; width:304px !important; overflow:hidden !important; }
.g-recaptcha > div, .g-recaptcha iframe { background:#222 !important; border:0 !important; box-shadow:none !important; margin:0 !important; padding:0 !important; }
.g-recaptcha * { background:#222 !important; color:#fff !important; border:0 !important; }
.g-recaptcha > div > div { background:#222 !important; border:0 !important; box-shadow:none !important; }
.g-recaptcha iframe { transform:scale(1) !important; -webkit-transform:scale(1) !important; transform-origin:0 0 !important; -webkit-transform-origin:0 0 !important; }

/* === Buttons & inputs =================================================== */
.paste-button { width:150px; margin-top:1.5rem !important; }

/* select disguised as a button inside .btn-group */
.btn-group .btn-select{
  width:auto;
  padding:.25rem .75rem;
  border:1px solid var(--bs-secondary);
  color:var(--bs-secondary);
  border-radius:0;
  appearance:none;
}
.btn-group > .btn-select:first-child{ border-top-left-radius:var(--bs-border-radius-sm); border-bottom-left-radius:var(--bs-border-radius-sm); }
.btn-group > .btn-select:last-child{ border-top-right-radius:var(--bs-border-radius-sm); border-bottom-right-radius:var(--bs-border-radius-sm); }

.btn-outline-secondary:active,
.btn-outline-secondary.active,
.btn-check:checked + .btn-outline-secondary,
.show > .btn-outline-secondary.dropdown-toggle {
  background-color: rgba(var(--bs-secondary-rgb), .2);
  color: var(--bs-secondary);
  border-color: var(--bs-secondary);
}
.btn-outline-secondary:focus-visible { box-shadow: 0 0 0 .2rem rgba(var(--bs-secondary-rgb), .25); }
.btn-group .btn-select + .btn{ margin-left:-1px; }

.form-group, .card-body { background:#222 !important; padding:15px; margin:0 !important; }
.list-group-item-dark { background:#343a40; }
.page-link { background:#343a40; border-color:#495057; }

/* === Misc small UI bits ================================================= */
.line-number-tooltip{ position:absolute; background:#333; color:#fff; padding:2px 6px; border-radius:3px; font-size:12px; z-index:1000; display:none; }
.recent-paste-button{ margin-left:auto; min-width:30px; }
.list-group-item{ display:flex; align-items:center; padding-right:10px; }
.navbar-nav-guest{ margin-left:auto !important; }
.navbar-nav.me-auto{ margin-right:1rem !important; }

.card-header{
  overflow-x:auto; max-width:100%; display:flex; justify-content:space-between;
  align-items:center; flex-wrap:wrap; gap:1rem;
}
.card-header h1{ margin:0; font-size:1rem; }
.card-header .meta{ font-size:.9rem; margin:0; }
.card-header .btn-group{ flex-shrink:0; }

/* === Code blocks / GeSHi =============================================== */
.code-content, .paste, .geshi { background:#212529; color:#e6e6e6; }

.code-content .de1, .paste .de2, .paste .li1, .paste .li2 { color:#e8e8e8 !important; }
.code-content .kw1, .paste .sy1 { color:#4aa3ff !important; }
.code-content .kw2 { color:#2ec4b6 !important; }
.code-content .st0 { color:#9fe870 !important; }
.code-content .co1, .paste .coMULTI { color:#7a8597 !important; font-style:italic; }
.code-content .nu0 { color:#f8d66d !important; }
.code-content .me1, .code-content .me2 { color:#7dd3fc !important; }
.code-content .br0 { color:#e5e7eb !important; }
.code-content .sy0 { color:#f59e0b !important; }
.code-content .re0 { color:#ffd166 !important; }
.code-content .st_h { color:#86efac !important; }

.geshi .kw1{ color:#4aa3ff !important; }
.geshi .kw2{ color:#2ec4b6 !important; }
.geshi .st0{ color:#9fe870 !important; }
.geshi .co1{ color:#7a8597 !important; font-style:italic; }
.geshi .nu0{ color:#f8d66d !important; }
.geshi .sy0{ color:#f59e0b !important; }
.geshi .br0{ color:#e5e7eb !important; }
.geshi .re0{ color:#ffd166 !important; }
.geshi .me1, .geshi .me2{ color:#7dd3fc !important; }

.geshi ol.geshi-ln { color:#5a6073; }
.geshi.geshi-fancy ol.geshi-ln > li { border-left-color:#2a2f3d; }

.code-content{
  overflow-x:auto; max-width:100%; border-radius:6px; margin-bottom:1rem;
  font-family:"Fira Code", monospace; font-weight:200; font-optical-sizing:auto;
  font-style:normal; font-size:.8rem;
}
.code-content li{ border-left:1px solid rgba(255,255,255,.12) !important; }

.code-content.no-line-numbers ol,
.code-content.no-line-numbers pre,
.code-content.no-line-numbers ol li,
.code-content.no-line-numbers pre span {
  list-style:none !important; margin-left:0 !important; padding-left:0 !important; border-left:none !important;
}

/* GeSHi tweak when numbers hidden */
.code-content.no-line-numbers ol li { padding-left:10px !important; }

.code-content.no-line-numbers ol li::before,
.code-content.no-line-numbers pre::before,
.code-content.no-line-numbers pre span::before { content:none !important; }

.code-content-fullscreen{
  position:fixed; top:0; left:0; width:100vw; height:100vh; z-index:1050;
  margin:0; padding:1rem; background:#222;
}

.syntax-select{ width:200px; }
.input-group-text { background:#333; border-color:#444; }
.guest-welcome{ padding:2rem; }
.guest-welcome i{ font-size:5rem; margin-bottom:1rem; }

.no-line-numbers ol, .no-line-numbers ol li.marker { list-style:none !important; }

.close-btn{
  position:absolute; top:5px; right:10px; background:none; border:none;
  font-size:1.5em; cursor:pointer; color:#fff;
}
.notification{ position:relative; overflow:auto; padding:10px; margin-bottom:10px; border:1px solid #ccc; display:none; }
.notification.error{ border-color:#dc3545; color:#dc3545; }
.notification.fade-out{ opacity:0; transition:opacity .5s; }

/* GDPR banner */
#cookieBanner{ font-size:.9em; z-index:1080; display:none; background: rgba(var(--bs-dark-rgb), var(--bs-bg-opacity)) !important; backdrop-filter: blur(3px); }

/* === Editor (textarea + gutter) ======================================== */

/* when a file is dragged over the editor */
.editor-wrap { position: relative; }

/* Subtle outline when dragging over the zone */
#edit-code.drag-hover,
.editor-wrap.drag-hover{
  outline: 2px dashed var(--drop-accent, var(--bs-primary, #6ea8fe));
  outline-offset: 4px;
}

/* Overlay */
.editor-wrap .drop-overlay{
  position: absolute;
  inset: 0;
  display: none;
  align-items: center;
  justify-content: center;
  z-index: 10;
  pointer-events: none;

  /* dark-friendly glass */
  background: rgba(255,255,255, .06);
  color: var(--drop-text, #f1f3f5);
  border: 2px dashed rgba(255,255,255, .55);
  border-radius: .6rem;
  text-shadow: 0 1px 2px rgba(0,0,0,.6);
  font-weight: 600;

  /* gentle glow using Bootstrap primary */
  box-shadow:
    0 0 0 2px rgba(var(--bs-primary-rgb, 110,168,254), .15),
    0 0 36px rgba(var(--bs-primary-rgb, 110,168,254), .18) inset;
}

.editor-wrap.dragging .drop-overlay { display: flex; }

/* slightly nicer motion */
@media (prefers-reduced-motion: no-preference){
  .editor-wrap .drop-overlay { transition: opacity .15s ease-in-out; opacity: .98; }
  .editor-wrap.dragging .drop-overlay { opacity: 1; }
}

.editor-wrap{ position:relative; display:grid; grid-template-columns:max-content 1fr; align-items:stretch; gap:0; overflow:hidden; box-shadow:none !important; }
.editor-gutter{
  display:flex; overflow:hidden; text-align:right; user-select:none; white-space:pre;
  color:#8a8f98; background:#111418; border:1px solid #2a2f36; border-right:none;
  border-radius:.5rem 0 0 .5rem; box-sizing:border-box; line-height:1.5; font-size:14px;
  padding:8px 6px; min-width:2rem; font-variant-numeric: tabular-nums; font-feature-settings:"tnum";
}
.editor-gutter-inner{ white-space:pre; padding:0 6px 0 4px; padding-top:0; align-self:flex-start; will-change: transform; }
.editor-ta{
  font-family:"Fira Code", monospace; line-height:1.5; font-size:14px; color:#e6edf3;
  background:#0d1117; border:1px solid #2a2f36; border-left:none; border-radius:0 .5rem .5rem 0;
  outline:none !important; box-shadow:none !important; resize:vertical; padding:8px 10px; width:100%; caret-color:#e6edf3;
}
.editor-ta::-webkit-scrollbar { width:12px; }
.editor-ta::-webkit-scrollbar-track { background:#0d1117; }
.editor-ta::-webkit-scrollbar-thumb { background:#2b3037; border-radius:6px; border:3px solid #0d1117; }
.editor-ta:focus, .search-form .form-control:focus { box-shadow:none !important; border-color:#2a2f36 !important; outline:0 !important; }

/* outline btns */
.btn-outline-secondary { --btn-border: rgba(var(--bs-secondary-rgb), .8); border-color: var(--btn-border); }
.btn-outline-secondary:hover, .btn-outline-secondary:focus { border-color: var(--btn-border); background-color: rgba(var(--bs-secondary-rgb), .08); }
.btn-outline-secondary:active, .btn-outline-secondary.active, .btn-check:checked + .btn-outline-secondary, .show > .btn-outline-secondary.dropdown-toggle { border-color: var(--btn-border); background-color: rgba(var(--bs-secondary-rgb), .16); }
.btn-outline-secondary:focus-visible{ outline:0; box-shadow:0 0 0 .2rem rgba(var(--bs-secondary-rgb), .25); }
.btn-group .btn{ position:relative; z-index:1; }
.btn-group .btn:focus, .btn-group .btn:active, .btn-group .btn.active{ z-index:2; }
.btn-group .btn-select{ border-color: var(--btn-border); }
.btn-group .btn-select:focus { box-shadow:none; }

/* Force GeSHi line numbers to render and be visible */
.code-content ol{ list-style-type:decimal !important; list-style-position:outside !important; padding-left:3.5em !important; margin-left:0 !important; }
.code-content ol li{ list-style-type:none !important; padding-left:.5em; }
.code-content ol li::marker{ content: counter(list-item)"\a0\a0"; }
.code-content:not(.no-line-numbers) ol, .code-content:not(.no-line-numbers) ol li{ list-style:decimal !important; }

.no-line-numbers ol, .no-line-numbers ol li, .no-line-numbers ol li::before{
  list-style:none !important; counter-increment:none !important; content:'' !important; padding-left:0 !important; margin-left:0 !important;
}
.no-line-numbers ol{ padding-left:0 !important; }

/* highlight.php numbers layout */
.code-content pre.hljs{ margin:0; }
.code-content .hljs-ln, .code-content .hljs-ln li{ list-style:none !important; margin-left:0 !important; padding-left:0 !important; }
.code-content .hljs-ln{
  display:table; width:100%; border-collapse:separate; border-spacing:0;
}
.code-content .hljs-ln-line{ display:table-row; }
.code-content .hljs-ln-n, .code-content .hljs-ln-c{ display:table-cell; vertical-align:top; background:inherit; }
.code-content .hljs-ln-n{
  user-select:none; text-align:right; padding:0 .50rem 0 0; white-space:pre; opacity:.6;
  font-variant-numeric:tabular-nums; font-feature-settings:"tnum"; width:1px;
}
.code-content .hljs-ln-c{ border-left:1px solid rgba(255,255,255,.12); padding-left:.75rem; white-space:pre; width:100%; }
.code-content.no-line-numbers .hljs-ln-n{ display:none; }
.code-content.no-line-numbers .hljs-ln-c{ border-left:0; padding-left:0; }

/* line highlight */
:root{
  --line-hl-bg: rgb(107 164 255 / 18%);
  --line-hl-bar: rgb(74 180 255 / 50%);
  --line-hl: rgb(74 180 255 / 100%);
}
@media (prefers-color-scheme: dark){
  :root{ --line-hl-bg: rgb(107 164 255 / 22%); --line-hl-bar: rgb(74 180 255 / 50%); --line-hl: rgb(74 180 255 / 100%); }
}
.hljs-hl{ background:var(--line-hl-bg); position:relative; box-shadow: inset 3px 0 0 var(--line-hl-bar); }
.hljs-hl::marker span.hljs-ln-n { color: var(--line-hl); }

/* Markdown/Parsedown */
.md-body{ padding:20px; border-radius:var(--bs-border-radius-sm); background:#1d1f21 !important; }

html{ scroll-behavior:smooth; }

/* ---------- Comments ---------- */

/* one place to tweak the indent */
#comments{ --indent-step:1.25rem; overflow-x:hidden; }

/* IMPORTANT: cancel Bootstrap’s flex list-group inside comments */
#comments .list-group{ display:block; }
#comments .list-group-item{ 
  display:block !important;   /* overrides .list-group-item{display:flex} */
  overflow:visible;
}

/* text wrapping guards */
#comments .comment-main{ min-width:0; }
#comments .comment-body,
#comments .comment-body a{ overflow-wrap:anywhere; word-break:break-word; }

/* only the top level keeps dividers */
#comments .list-group.list-group-flush > .list-group-item{ border-width:0 0 1px 0; }

/* each nested UL indents itself; because it's display:block,
   the indent reduces its available width instead of overflowing */
#comments .comment-main > ul.list-group{
  margin: .5rem 0 0 var(--indent-step);
  padding-left: .75rem;
  border-left: 1px solid rgba(255,255,255,.15);
  box-sizing: border-box;
  width: auto;            /* don’t force 100% in flex land */
  max-width: 100%;
}

/* nested rows don't add their own borders/padding */
#comments .comment-main > ul.list-group > .list-group-item{
  border: 0 !important;
  padding-left: 0;
  padding-right: 0;
}

.comment-avatar{ width:36px; height:36px; background:rgba(57,155,255,.15); }
#comments .list-group-item:target{
  outline:1px solid rgba(13,110,253,.35);
  background:rgba(13,110,253,.05);
  scroll-margin-top:90px;
}
.comment-permalink{ opacity:.5; } .comment-permalink:hover{ opacity:1; }


/* ---------- Diff viewer ---------- */
.diff-outer { padding-top: 12px; }

/* Toolbar */
.diff-toolbar{
  display:flex; align-items:center; flex-wrap:wrap; gap:.5rem;
  padding:.5rem .75rem;
  border:1px solid var(--bs-border-color, #3333);
  border-radius:.5rem;
  background: var(--bs-body-bg, transparent);
}
.diff-toolbar .grow{ flex:1; }
.diff-toolbar .lbl{ opacity:.8; font-size:.9rem; margin-right:.25rem; }
.langbar{ display:grid; grid-template-columns:1fr 1fr; gap:.75rem; width:100%; }
.lang-select{ min-width:160px; }

/* Area + scrollport */
.diff-area{
  --lno: 56px;
  --splitter-hit: 14px;
  --splitter-line: 2px;
  position: relative;
  margin-top: 48px;              /* room for the nav pill above the scroll pane */
  margin-bottom: .75rem;
}
.diff-area .diff-scroll{
  height: clamp(60svh, calc(100svh - 240px), 88svh);
  overflow: auto;
  border:1px solid var(--bs-border-color, #3333);
  border-radius:.5rem;
  position: relative;
}

/* Sticky overlay host for the splitter (no layout impact) */
.diff-area .split-overlay{
  position: sticky;
  top: 0;
  height: 0;
  pointer-events: none;
  z-index: 10;
}

/* Splitter — wide hit area, thin visual line */
.diff-area .splitter{
  position: absolute;
  top: 0;
  height: 100svh;
  left: var(--form-split-left, 50%);
  width: var(--splitter-hit);
  transform: translateX(calc(-.5 * var(--splitter-hit)));
  cursor: col-resize;
  pointer-events: auto;
  z-index: 11;
}
.diff-area .splitter::before{
  content:"";
  position:absolute; inset:0;
  margin: 0 calc((var(--splitter-hit) - var(--splitter-line)) / 2);
  border-radius:1px;
  background: var(--bs-border-color, #6c757d66);
}
.diff-area .splitter::after{
  content:"";
  position:absolute; inset:0;
  background:#6c757d1a; opacity:0;
  transition: opacity .12s ease-in-out;
  pointer-events:none;
}
.diff-area .splitter:hover::before{ background: var(--bs-border-color, #6c757db3); }
.diff-area .splitter:hover::after,
.diff-area .splitter.dragging::after{ opacity:.35; }

/* Table */
.diff-table{
  width: 100%;
  border-collapse: separate;
  border-spacing: 0;
  table-layout: fixed;
  font: 13px/1.35 ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono", "Courier New", monospace;
}
.diff-table td{ vertical-align: top; }

/* Line numbers */
.diff-table td.no{
  width: var(--lno); min-width: var(--lno);
  color: var(--bs-secondary-color, #8892a6);
  user-select:none; text-align:right;
  padding: 2px 6px;
  border-right:1px solid var(--bs-border-color, #0001);
}

/* Left pane: clip at column boundary so text never bleeds past the splitter */
#tblSide td.code.left {
  overflow: hidden;
}

/* Code cells */
.diff-table td.code{ padding: 0; }
.code-inner{
  display: block; width: 100%; padding: 2px 3px;
  white-space: pre;
  overflow-x: auto; overflow-y: visible;
}
.wrap-on .code-inner{ white-space: pre-wrap; word-break: break-word; }
/* neutralize hljs block styles that would create per-line scroll containers */
.code-inner .hljs{
  display: inline !important;
  padding: 0 !important;
  background: transparent !important;
  line-height: inherit !important;
  white-space: inherit !important;
  overflow: visible !important;
}

/* Show trailing spaces faintly */
.show-invisibles .code-inner {
  background-image: linear-gradient(to right, transparent 0, transparent calc(100% - 1ch), rgba(0,0,0,.06) calc(100% - 1ch));
  background-size: 100% 1.35em;
  background-repeat: repeat-y;
}

/* Zebra */
.diff-table tr:nth-child(even) td { background: rgba(0,0,0,.02); }
@media (prefers-color-scheme: dark){
  .diff-table tr:nth-child(even) td { background: rgba(255,255,255,.03); }
}

/* highlight changes */
.diff-inside-add,
.diff-inside-del {
  padding: 0 1px;
  border-radius: 2px;
  box-decoration-break: clone;
  -webkit-box-decoration-break: clone;
}

.diff-inside-add {
  background: rgba(25,135,84,.38);
  outline: 1px solid rgba(25,135,84,.5);
  outline-offset: 0;
}

.diff-inside-del {
  background: rgba(220,53,69,.32);
  outline: 1px solid rgba(220,53,69,.45);
  outline-offset: 0;
  text-decoration: line-through;
  text-decoration-thickness: 1.5px;
  text-decoration-color: rgba(220,53,69,.7);
}

@media (prefers-color-scheme: dark){
  .diff-inside-add {
    background: rgba(25,135,84,.45);
    outline-color: rgba(25,135,84,.65);
  }
  .diff-inside-del {
    background: rgba(220,53,69,.40);
    outline-color: rgba(220,53,69,.60);
  }
}

/* Change surfaces — stronger row backgrounds
   Use !important to beat zebra nth-child whose specificity ties ours */
.diff-table td.ctx  { background: transparent; }
.diff-table td.add  {
  background: rgba(25,135,84,.14) !important;
  border-left: 3px solid rgba(25,135,84,.55);
}
.diff-table td.del  {
  background: rgba(220,53,69,.14) !important;
  border-left: 3px solid rgba(220,53,69,.55);
}
.diff-table td.empty{ background: rgba(108,117,125,.08); }

/* Don't double-border the line-number cells */
.diff-table td.no.add,
.diff-table td.no.del { border-left: none; }

.marker{ font-weight:600; margin-right:.25rem; opacity:.9; }

/* Keep cells, collapse visuals when line numbers are off */
.lineoff td.no{
  width:0 !important; min-width:0 !important; max-width:0 !important;
  padding:0 !important; border:0 !important;
  color:transparent !important; overflow:hidden !important;
}
.lineoff col.col-lno-l,
.lineoff col.col-lno-r{ width:0 !important; min-width:0 !important; }

/* Unified specifics */
.diff-table.unified td.no{ width:2.75rem; min-width:2.75rem; }
.diff-table.unified.lineoff td.no{ width:0 !important; min-width:0 !important; padding:0 !important; border:0 !important; }
.diff-table.unified td.code{ width:auto; }

/* A11y/UX */
@media (pointer: coarse){
  .diff-area{ --splitter-hit: 18px; }            /* easier to grab on touch */
}
@media (prefers-reduced-motion: reduce){
  .diff-area .splitter::after{ transition:none; }
}

/* Responsive */
@media (max-width:1000px){ .langbar{ grid-template-columns: 1fr; } }

/* ---- Internal CAPTCHA ---- */
.captcha-img{
  height:64px;
  width:220px;
  object-fit:cover;
  border-radius:.5rem;
  border:1px solid var(--bs-border-color, rgba(0,0,0,.125));
  background:var(--bs-body-bg,#fff);
  user-select:none;
}
[data-captcha] .form-control { min-height:56px; }
.imagever { width:auto; max-width:100%; height:56px; object-fit:cover; }

/* ================================================================
   FLOATING CHANGE NAVIGATOR  –  pinned above the diff scroll pane
   ================================================================ */
.diff-float-nav {
  position: absolute;
  top: -38px;
  right: 20px;
  z-index: 30;
  display: flex;
  align-items: center;
  gap: 0;
  background: var(--bs-body-bg, #fff);
  border: 1px solid var(--bs-border-color, #dee2e6);
  border-radius: 999px;
  box-shadow: 0 2px 12px rgba(0,0,0,.18), 0 1px 3px rgba(0,0,0,.10);
  padding: 2px;
  user-select: none;
  pointer-events: auto;
  white-space: nowrap;
}
@media (prefers-color-scheme: dark) {
  .diff-float-nav {
    box-shadow: 0 2px 14px rgba(0,0,0,.5), 0 1px 4px rgba(0,0,0,.3);
  }
}
.dfn-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 30px;
  height: 30px;
  border-radius: 999px;
  border: none;
  background: transparent;
  color: var(--bs-body-color, #212529);
  cursor: pointer;
  transition: background .12s;
  font-size: 13px;
  flex-shrink: 0;
}
.dfn-btn:hover {
  background: var(--bs-secondary-bg, #e9ecef);
}
.dfn-btn:active {
  background: var(--bs-tertiary-bg, #dee2e6);
}
.dfn-counter {
  font-size: 12px;
  font-weight: 600;
  min-width: 44px;
  text-align: center;
  color: var(--bs-body-color, #212529);
  letter-spacing: .01em;
  padding: 0 2px;
}

/* ── Merge cell layout: each half tracks its pane ────────────── */
tr.diff-merge-row > td.merge-cell {
  padding: 3px 6px !important;
  background: var(--bs-body-bg, #fff) !important;
  border-top: 1px dashed var(--bs-border-color, #dee2e6) !important;
  border-bottom: 1px dashed var(--bs-border-color, #dee2e6) !important;
  vertical-align: middle !important;
}
@media (prefers-color-scheme: dark) {
  tr.diff-merge-row > td.merge-cell { background: var(--bs-body-bg, #0d1117) !important; }
}
td.merge-cell-l { text-align: right; }
td.merge-cell-r { text-align: left; }


.diff-map-wrap {
  display: flex;
  align-items: stretch;
  gap: 0;
}
.diff-map-wrap > .diff-scroll {
  flex: 1 1 auto;
  border-right: none !important;
  border-radius: .5rem 0 0 .5rem !important;
}
.diff-map {
  width: 14px;
  flex: 0 0 14px;
  position: relative;
  background: var(--bs-tertiary-bg, #f3f4f6);
  border: 1px solid var(--bs-border-color, #dee2e6);
  border-left: none;
  border-radius: 0 .5rem .5rem 0;
  overflow: hidden;
  cursor: pointer;
  user-select: none;
}
@media (prefers-color-scheme: dark) {
  .diff-map { background: var(--bs-tertiary-bg, #1a1d21); }
}
.diff-map-mark {
  position: absolute;
  left: 1px;
  right: 1px;
  min-height: 2px;
  border-radius: 1px;
  cursor: pointer;
  transition: filter .1s;
}
.diff-map-mark:hover { filter: brightness(1.25) saturate(1.4); }
.diff-map-mark.add { background: rgba(25,135,84,.82); }
.diff-map-mark.del { background: rgba(220,53,69,.82); }
.diff-map-mark.mod {
  background: linear-gradient(
    to bottom,
    rgba(220,53,69,.82) 50%,
    rgba(25,135,84,.82) 50%
  );
}
.diff-map-thumb {
  position: absolute;
  left: 0; right: 0;
  background: rgba(108,117,125,.18);
  border-radius: 2px;
  pointer-events: none;
  min-height: 16px;
}

/* ================================================================
   PER-HUNK MERGE BUTTONS
   ================================================================ */
/* Done state still uses a centred flex bar spanning all 4 cols */
.diff-merge-bar {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: .5rem;
  padding: 2px 0;
}
.btn-merge {
  font-size: 11px;
  line-height: 1.4;
  padding: 2px 10px;
  border-radius: 3px;
  border: 1px solid transparent;
  cursor: pointer;
  font-family: inherit;
  transition: background .12s, border-color .12s;
  display: inline-flex;
  align-items: center;
  gap: 3px;
  color: var(--bs-body-color, #212529);
  background: none;
}
.btn-merge-l {
  background: rgba(25,135,84,.09);
  border-color: rgba(25,135,84,.38);
  color: var(--bs-body-color, #212529);
}
.btn-merge-l:hover {
  background: rgba(25,135,84,.22);
  border-color: rgba(25,135,84,.65);
}
.btn-merge-r {
  background: rgba(220,53,69,.09);
  border-color: rgba(220,53,69,.38);
  color: var(--bs-body-color, #212529);
}
.btn-merge-r:hover {
  background: rgba(220,53,69,.22);
  border-color: rgba(220,53,69,.65);
}
.btn-merge-dismiss {
  background: none;
  border-color: var(--bs-border-color, #dee2e6);
  opacity: .5;
}
.btn-merge-dismiss:hover { opacity: 1; background: var(--bs-secondary-bg, #e9ecef); }

.diff-merge-done {
  gap: .5rem;
  font-size: 11px;
}
.merge-done-label {
  color: var(--bs-success-text-emphasis, #0a3622);
  font-weight: 600;
}
@media (prefers-color-scheme: dark) {
  .merge-done-label { color: #75b798; }
}

/* ================================================================
   JUMP FLASH  –  outline pulse on navigation / minimap click
   ================================================================ */
@keyframes diffJumpFlash {
  0%   { outline: 2px solid rgba(255,193,7,.95); outline-offset: -1px; }
  60%  { outline: 2px solid rgba(255,193,7,.60); outline-offset: -1px; }
  100% { outline: 2px solid rgba(255,193,7,0);   outline-offset: -1px; }
}
tr.jump-flash td { animation: diffJumpFlash .75s ease-out forwards; }