/* Canvas view */
#canvas { position: absolute; inset: 0; overflow: hidden; background:
  radial-gradient(circle, color-mix(in srgb, var(--line-strong) 55%, transparent) 1px, transparent 1.2px) 0 0 / 22px 22px, var(--bg);
  cursor: grab; user-select: none; touch-action: none; }
#canvas.dragging { cursor: grabbing; }
body:not(.view-canvas) #canvas { display: none; }
body.view-canvas #cy { visibility: hidden; }
body.view-canvas #srcpane { display: none; }
body.view-canvas .details { flex: 1 1 auto; }

.cv-world { position: absolute; left: 0; top: 0; transform-origin: 0 0; --inv: 1; }
.cv-links { position: absolute; left: 0; top: 0; overflow: visible; pointer-events: none; z-index: 1; }
.cv-groups, .cv-cards { position: absolute; left: 0; top: 0; }
.cv-cards { z-index: 2; }

/* group frames */
.cv-group {
  position: absolute; border-radius: 18px; border: 1.5px dashed color-mix(in srgb, var(--gc) 45%, transparent);
  background: color-mix(in srgb, var(--gc) 5%, transparent);
}
.cv-group.drop { border-style: solid; border-color: var(--gc); background: color-mix(in srgb, var(--gc) 12%, transparent); }
.cv-gtitle {
  position: absolute; left: 18px; top: 10px; font: 700 17px/1.3 var(--sc); color: var(--gc); cursor: move; white-space: nowrap;
  transform-origin: 0 100%;
}
.cv-gtitle .n { font-weight: 500; font-size: 12px; color: var(--muted); margin-left: 10px; }
#canvas.far .cv-gtitle { top: auto; bottom: calc(100% + 6px); font-size: min(calc(15px * var(--inv)), var(--tw)); }
#canvas.far .cv-gtitle .n { font-size: 0.7em; }

/* coupling clusters inside a group */
.cv-sub {
  position: absolute; border-radius: 14px; border: 1.5px dotted color-mix(in srgb, var(--gc) 55%, transparent);
  background: color-mix(in srgb, var(--gc) 6%, var(--bg) 0%);
}
.cv-sub.drop { border-style: solid; border-color: var(--gc); background: color-mix(in srgb, var(--gc) 14%, transparent); }
/* the cluster name sits top-right (file names float top-left) and never outgrows the title strip */
.cv-stitle { position: absolute; right: 14px; top: 10px; font: 600 14px/1.3 var(--sc); color: color-mix(in srgb, var(--gc) 80%, var(--text)); white-space: nowrap; }
.cv-stitle::before { content: "⇄ "; opacity: .6; }
#canvas.far .cv-stitle { font-size: min(calc(13px * var(--inv)), var(--tw), 38px); top: 8px;
  background: color-mix(in srgb, var(--bg) 85%, transparent); padding: 0 0.3em; border-radius: 0.25em; }

/* file blocks */
.cv-card {
  position: absolute; background: var(--panel); border: 1px solid var(--line-strong); border-radius: 10px;
  box-shadow: 0 1px 2px rgba(0,0,0,.05), 0 6px 22px rgba(0,0,0,.06); overflow: visible;
  transition: opacity .2s, box-shadow .2s, border-color .2s;
}
.cv-card::before { content: ""; position: absolute; left: -1px; right: -1px; top: -1px; height: 4px; border-radius: 10px 10px 0 0; background: var(--mc); opacity: .85; }
.cv-card.nonsrc { background: color-mix(in srgb, var(--panel) 92%, var(--bg)); }
.cv-card.haserr { border-color: var(--err); }
.cv-card.sel { border-color: var(--accent); box-shadow: 0 0 0 3px var(--accent-soft), 0 10px 30px rgba(0,0,0,.12); }
.cv-card.hasocc { border-color: color-mix(in srgb, var(--hit) 70%, var(--line-strong)); }
.cv-card.moving { box-shadow: 0 18px 50px rgba(0,0,0,.25); z-index: 10; opacity: .92; }
.cv-card.flash { animation: cvflash 1.6s ease-out; }
@keyframes cvflash { 0% { box-shadow: 0 0 0 10px color-mix(in srgb, var(--hit) 55%, transparent); } 100% { box-shadow: 0 0 0 0 transparent; } }

.cv-head {
  height: 30px; display: flex; align-items: center; gap: 6px; padding: 0 10px; cursor: pointer;
  border-bottom: 1px solid var(--line); font-size: 12px; white-space: nowrap; overflow: hidden; border-radius: 10px 10px 0 0;
}
.cv-head:hover { background: var(--panel-2); }
.cv-head .fdir { color: var(--muted); font-family: var(--mono); font-size: 11px; }
.cv-head .fname { font-weight: 700; font-family: var(--mono); margin-left: -6px; }
.cv-head .mchip { font-size: 10.5px; padding: 0 6px; border-radius: 4px; color: var(--mc); background: color-mix(in srgb, var(--mc) 12%, transparent); font-weight: 600; }
.cv-head .errchip { font-size: 10.5px; padding: 0 6px; border-radius: 4px; color: var(--err); background: var(--err-soft); font-weight: 600; }
.cv-head .occn { margin-left: auto; color: var(--hit); font-weight: 700; font-family: var(--mono); font-size: 11px; }
.cv-head .lines { color: var(--muted); font-size: 11px; font-family: var(--mono); }
.cv-head .lines::after { content: " lines"; }

/* the far-zoom file title floats above the block at a readable size */
.cv-ftitle { display: none; position: absolute; left: 0; bottom: calc(100% + 4px); white-space: nowrap; transform-origin: 0 100%;
  font: 700 min(calc(13px * var(--inv)), var(--tw)) / 1.2 var(--mono); color: var(--text); cursor: pointer; }
#canvas.far .cv-ftitle { display: block; z-index: 5; }
#canvas.far .cv-ftitle span { background: color-mix(in srgb, var(--bg) 88%, transparent); padding: 0 0.25em; border-radius: 0.2em; }
#canvas.map .cv-ftitle { bottom: auto; top: 36px; left: 8px; }
#canvas.map .cv-labels { display: none !important; }
#canvas.map .cv-mini { opacity: .55; }

.cv-mini { position: absolute; pointer-events: none; image-rendering: auto; }
.cv-card.rendered .cv-mini { display: none; }
#canvas.far .cv-card .cv-mini { display: block; }

/* definition blocks (functions, macros, types, consts) nested in file cards */
.cv-blocks { position: absolute; inset: 0; pointer-events: none; z-index: 2; }
.cv-blk { position: absolute; left: 0; right: 0; --kc: var(--hl-fn); border-left: 3px solid color-mix(in srgb, var(--kc) 70%, transparent); }
.cv-blk.k-ty { --kc: var(--hl-type); }
.cv-blk.k-mac { --kc: var(--hl-meta); }
.cv-blk.k-co { --kc: var(--c4); }
.cv-blk .gut { position: absolute; left: -3px; top: 0; bottom: 0; width: 42px; pointer-events: auto; cursor: pointer; }
.cv-blk:has(.gut:hover) { background: color-mix(in srgb, var(--kc) 9%, transparent); box-shadow: inset 0 0 0 1px color-mix(in srgb, var(--kc) 45%, transparent); }
.cv-blk.sel { background: color-mix(in srgb, var(--accent) 8%, transparent); box-shadow: inset 0 0 0 1.5px var(--accent); border-left-color: var(--accent); }
.cv-blk .bl { display: none; }
/* overview: blocks are tiles you can hover and click */
#canvas.far .cv-blk {
  pointer-events: auto; cursor: pointer; left: 6px; right: 6px; border-radius: calc(4px * min(var(--inv), 6));
  border-left-width: calc(3px * min(var(--inv), 8));
  background: color-mix(in srgb, var(--kc) 7%, transparent);
  box-shadow: inset 0 0 0 calc(1px * min(var(--inv), 6)) color-mix(in srgb, var(--kc) 22%, transparent);
  transition: background .12s, box-shadow .12s;
}
#canvas.far .cv-blk:not(.hasdoc) { background: color-mix(in srgb, var(--kc) 4%, transparent); }
#canvas.far .cv-blk:hover { background: color-mix(in srgb, var(--kc) 18%, transparent); box-shadow: inset 0 0 0 calc(2px * min(var(--inv), 6)) var(--kc); z-index: 3; }
#canvas.far .cv-blk.sel { background: color-mix(in srgb, var(--accent) 20%, transparent); box-shadow: inset 0 0 0 calc(2.5px * min(var(--inv), 6)) var(--accent); }
#canvas.far .cv-blk .gut { display: none; }
#canvas.far .cv-blk .bl {
  display: block; position: absolute; left: 0.3em; top: 0.15em; max-width: calc(100% - 0.6em); overflow: hidden; text-overflow: ellipsis; white-space: nowrap;
  font: 650 min(calc(11px * var(--inv)), var(--tw)) / 1.2 var(--mono); color: var(--text);
  /* an opaque chip so minimap bars and borders never run through the name */
  background: var(--panel); padding: 0 0.3em; border-radius: 0.25em;
  box-shadow: 0 0 0 0.12em var(--panel), 0 0.05em 0.3em rgba(0,0,0,.12);
}
#canvas.far .cv-blk:hover .bl, #canvas.far .cv-blk.sel .bl { background: color-mix(in srgb, var(--kc) 14%, var(--panel)); }
#canvas.far .cv-blk.k-ty .bl { color: var(--hl-type); }
#canvas.far .cv-blk.k-mac .bl { color: var(--hl-meta); }
#canvas.far .cv-blk .bl.hide { display: none; }
#canvas.map .cv-blk .bl { display: none; }

/* folded descriptions */
.cv-code .ln.fold { cursor: pointer; color: var(--muted); font-style: italic; background: repeating-linear-gradient(90deg, transparent 0 6px, color-mix(in srgb, var(--line) 45%, transparent) 6px 7px); }
.cv-code .ln.fold:hover { color: var(--text); background: var(--accent-soft); }
.cv-code .ln.fold .fm { font-family: var(--sans); font-size: 11.5px; }
.cv-code .ln.fold .fn { position: absolute; right: 10px; font-style: normal; font-size: 10.5px; opacity: .7; }
.doc.note { white-space: pre-wrap; border-left: 3px solid var(--line-strong); font-family: var(--mono); font-size: 11.5px; }
.method.cur { border-color: var(--accent); }
.cv-tip .td { margin-top: 4px; font-size: 12px; color: var(--text); }

.cv-marks { position: absolute; inset: 0; pointer-events: none; }
.cv-marks .m { position: absolute; left: -7px; width: 5px; height: 15px; border-radius: 2px; transform: translateY(-1px); background: var(--hit); opacity: .55; }
.cv-marks .m.r1 { background: var(--accent); opacity: 1; }
.cv-marks .m.r2, .cv-marks .m.r3 { background: var(--hit); opacity: 1; }
#canvas.far .cv-marks .m { left: 0; right: 0; width: auto; height: calc(17px * min(var(--inv), 4)); transform: translateY(-50%); opacity: .35; border-radius: 0; }
#canvas.far .cv-marks .m.r1 { opacity: .7; }

/* code */
.cv-code { position: absolute; top: 30px; left: 0; right: 0; font: 12px/17px var(--mono); tab-size: 4; padding-bottom: 10px; }
#canvas.far .cv-code { display: none; }
.cv-code .ln { height: 17px; white-space: pre; padding-left: 46px; padding-right: 10px; position: relative; overflow: hidden; text-overflow: clip; }
.cv-code .ln i { position: absolute; left: 0; width: 36px; text-align: right; font-style: normal; color: var(--muted); opacity: .5; }
.cv-code .ln.pulse { animation: cvpulse 1.8s ease-out; }
@keyframes cvpulse { 0%, 35% { background: color-mix(in srgb, var(--hit) 32%, transparent); } 100% { background: transparent; } }
.cv-code .t1 { color: var(--hl-kw); font-weight: 600; }
.cv-code .t2 { color: var(--hl-str); }
.cv-code .t3 { color: var(--hl-com); font-style: italic; }
.cv-code .t4 { color: var(--hl-num); }
.cv-code .t5 { color: var(--muted); }
.cv-code .t7 { color: var(--hl-meta); }
.cv-code [data-s] { cursor: pointer; border-radius: 2px; }
.cv-code [data-s]:hover { background: var(--accent-soft); box-shadow: 0 1px 0 var(--accent); }
.cv-code .k-fn { color: var(--hl-fn); }
.cv-code .k-ty { color: var(--hl-type); }
.cv-code .k-mo { color: var(--accent); font-weight: 600; }
.cv-code .k-co { color: var(--c4); }
.cv-code .k-fi { color: var(--text); }
.cv-code .k-ex { color: color-mix(in srgb, var(--hl-fn) 55%, var(--muted)); }
.cv-code .k-mac { color: var(--hl-meta); }
.cv-code .r1 { font-weight: 700; text-decoration: underline; text-decoration-color: color-mix(in srgb, currentColor 40%, transparent); text-underline-offset: 3px; }
.cv-code .k-lo.r1, .cv-code .k-fi.r1 { font-weight: 400; }
.cv-code .hl { background: color-mix(in srgb, var(--hit) 22%, transparent); box-shadow: 0 0 0 1px color-mix(in srgb, var(--hit) 60%, transparent); }
.cv-code .hl.r1 { background: color-mix(in srgb, var(--accent) 28%, transparent); box-shadow: 0 0 0 1.5px var(--accent); }
.cv-code .hl.r2, .cv-code .hl.r3 { background: color-mix(in srgb, var(--hit) 34%, transparent); box-shadow: 0 2px 0 var(--hit); }

/* links: below the blocks when reading code, above them in the overview. Widths are in world units
   multiplied by --inv (1/zoom): non-scaling-stroke would ignore the canvas's CSS zoom. */
#canvas.far .cv-links { z-index: 4; }
.cv-links path { --sw: 1.8; }
.cv-links .lk-halo { fill: none; stroke: var(--panel); stroke-width: calc((var(--sw) + 3) * 1px * var(--inv)); opacity: .85; stroke-linecap: round; }
.cv-links .lk { fill: none; stroke-width: calc(var(--sw) * 1px * var(--inv)); stroke-linecap: round; }
.cv-links .lk-r1, .cv-links .lk-r0 { stroke: var(--hit); }
.cv-links .lk-r2 { stroke: var(--hit); stroke-dasharray: calc(8px * var(--inv)) calc(5px * var(--inv)); }
.cv-links .lk-out { stroke: var(--accent); }
.cv-links .lk-in { stroke: var(--c3); }
.cv-links .lk-inc { stroke: var(--muted); --sw: 1.5; stroke-dasharray: calc(4px * var(--inv)) calc(5px * var(--inv)); }
/* dimmed (unrelated) blocks stay legible enough to read the arrows against */
.cv-card.dim { opacity: .5; }

/* tooltip + zoom badge */
.cv-tip { position: absolute; z-index: 20; max-width: 320px; padding: 8px 10px; background: var(--panel); border: 1px solid var(--line-strong);
  border-radius: 8px; box-shadow: 0 8px 28px rgba(0,0,0,.18); pointer-events: none; font-size: 12px; }
.cv-tip .tk { font: 650 12.5px/1.3 var(--sc); letter-spacing: .03em; color: var(--muted); display: flex; align-items: center; gap: 6px; }
.cv-tip .tn { font: 700 13px var(--mono); margin: 2px 0; }
.cv-tip .ti { white-space: pre-wrap; color: var(--text); font-family: var(--mono); font-size: 11px; max-height: 90px; overflow: hidden; }
.cv-tip .tl { margin-top: 4px; color: var(--muted); font-family: var(--mono); font-size: 11px; }
.cv-zoom { position: absolute; right: 10px; bottom: 10px; z-index: 5; font: 11px var(--mono); color: var(--muted); background: var(--panel); border: 1px solid var(--line); border-radius: 6px; padding: 2px 7px; }

.kdot { width: 9px; height: 9px; border-radius: 50%; display: inline-block; background: var(--muted); }
.kdot.k-fn { background: var(--hl-fn); } .kdot.k-ty { background: var(--hl-type); } .kdot.k-mo { background: var(--accent); }
.kdot.k-co { background: var(--c4); } .kdot.k-lo { background: var(--text); } .kdot.k-fi { background: var(--line-strong); }
.kdot.k-mac { background: var(--hl-meta); }

/* references panel */
.btnrow { display: flex; gap: 6px; flex-wrap: wrap; margin-top: 12px; }
.occlist { border-left: 3px solid var(--line); padding-left: 8px; }
.occlist.r1 { border-left-color: var(--accent); }
.occlist.r2 { border-left-color: var(--hit); }
.occlist.r0 { border-left-color: color-mix(in srgb, var(--hit) 45%, var(--line)); }
.occfile { display: flex; align-items: center; gap: 6px; font: 600 12px var(--mono); padding: 5px 4px 2px; cursor: pointer; color: var(--text); }
.occfile:hover { color: var(--accent); }
.occfile .cnt { margin-left: auto; color: var(--muted); font-weight: 400; }
.occ { display: flex; gap: 8px; align-items: baseline; padding: 2px 4px; border-radius: 5px; cursor: pointer; }
.occ:hover { background: var(--panel-2); }
.occ .ol { font: 11px var(--mono); color: var(--muted); min-width: 34px; text-align: right; flex: none; }
.occ code { font: 11.5px var(--mono); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; min-width: 0; flex: 1; }
.occ code mark { background: color-mix(in srgb, var(--hit) 28%, transparent); color: inherit; border-radius: 2px; }
.occ .badge { flex: none; }

#legend .lg { width: 14px; height: 10px; border-radius: 2px; display: inline-block; }
#legend .lg.r1 { background: color-mix(in srgb, var(--accent) 35%, transparent); box-shadow: 0 0 0 1.5px var(--accent); }
#legend .lg.r2 { background: color-mix(in srgb, var(--hit) 34%, transparent); box-shadow: 0 2px 0 var(--hit); }
#legend .lg.r0 { background: color-mix(in srgb, var(--hit) 22%, transparent); }
.tgroup button[disabled] { opacity: .35; cursor: default; }

/* hide buttons: top-right of a card / group frame, inside a cluster title; shown on hover,
   constant on-screen size at every zoom */
.hidebtn {
  position: absolute; width: 24px; height: 24px; border-radius: 50%; display: grid; place-items: center;
  background: var(--panel); border: 1px solid var(--line-strong); color: var(--muted); font-size: 11px;
  box-shadow: 0 2px 6px rgba(0,0,0,.15); cursor: pointer; opacity: 0; pointer-events: none; transition: opacity .12s;
  z-index: 6;
}
.hidebtn:hover { color: var(--err); border-color: var(--err); }
.cv-card > .hidebtn { top: -10px; right: -10px; transform: scale(var(--inv)); transform-origin: 100% 0; }
.cv-group > .hidebtn { top: 10px; right: 12px; transform: scale(var(--inv)); transform-origin: 100% 0; }
#canvas.far .cv-group > .hidebtn { top: auto; bottom: calc(100% - 4px); transform-origin: 100% 100%; }
.cv-stitle .hidebtn { position: relative; display: inline-grid; width: 1.6em; height: 1.6em; font-size: .7em; margin-left: .5em; vertical-align: .1em; }
.cv-card:hover > .hidebtn, .cv-group:hover > .hidebtn, .cv-sub:hover .hidebtn { opacity: 1; pointer-events: auto; }
#canvas.dragging .hidebtn { opacity: 0 !important; pointer-events: none !important; }