/* ===========================================================================
   Mesh — link analysis tool
   Dark "analyst" theme. All colors are CSS variables so it's easy to reskin.
   =========================================================================== */
:root {
  --bg:        #0e1116;
  --bg-2:      #151a21;
  --panel:     #1a212b;
  --panel-2:   #212a36;
  --border:    #2b3644;
  --border-2:  #3a4757;
  --text:      #e6edf3;
  --text-dim:  #9aa7b4;
  --text-mut:  #6b7785;
  --accent:    #4f9dff;
  --accent-2:  #2f6fd0;
  --danger:    #ff5c6c;
  --ok:        #3fd68a;
  --warn:      #ffcf5c;
  --shadow:    0 6px 24px rgba(0,0,0,.45);
  --radius:    8px;
  --tb-h:      48px;
}

* { box-sizing: border-box; }
[hidden] { display: none !important; }   /* beat class rules like .inspector{display:flex} */
html, body {
  margin: 0; height: 100%;
  background: var(--bg); color: var(--text);
  font: 14px/1.45 system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  overflow: hidden;
}
body { display: flex; flex-direction: column; }

/* ---------- Sensitivity / classification banner ---------- */
.banner {
  flex: 0 0 auto; height: 24px; line-height: 24px;
  text-align: center; font-weight: 800; font-size: 12px;
  letter-spacing: 1.5px; text-transform: uppercase;
  font-family: "Segoe UI", system-ui, sans-serif; user-select: none;
  white-space: nowrap; overflow: hidden; text-overflow: ellipsis;
}
.bn-preview {
  height: 28px; line-height: 28px; text-align: center; border-radius: 6px;
  font-weight: 800; letter-spacing: 1.5px; text-transform: uppercase; font-size: 12px;
}

/* ---------- Toolbar ---------- */
#toolbar {
  height: var(--tb-h);
  display: flex; align-items: center; gap: 14px;
  padding: 0 12px;
  background: linear-gradient(var(--bg-2), var(--panel));
  border-bottom: 1px solid var(--border);
  white-space: nowrap; overflow-x: auto;
}
.brand { display: flex; align-items: center; gap: 8px; font-weight: 700; letter-spacing: .3px; }
.brand-mark { width: 22px; height: 22px; display: block; flex: 0 0 auto; }
.brand-name { color: var(--text); }
.brand-ver { color: var(--text-mut); font-size: 11px; font-weight: 500; align-self: flex-start; margin-top: 2px; }
.case-title {
  background: var(--bg); color: var(--text);
  border: 1px solid var(--border); border-radius: var(--radius);
  padding: 6px 10px; min-width: 150px; max-width: 220px; font-size: 13px;
}
.case-title:focus { outline: none; border-color: var(--accent); }

.tb-group { display: flex; align-items: center; gap: 6px; }
.tb-group + .tb-group { padding-left: 10px; border-left: 1px solid var(--border); }
.tb-label { color: var(--text-mut); font-size: 12px; }

.tb-btn, .mini-btn, .icon-btn {
  background: var(--panel-2); color: var(--text);
  border: 1px solid var(--border-2); border-radius: var(--radius);
  padding: 7px 11px; font-size: 13px; cursor: pointer;
  transition: background .12s, border-color .12s, transform .05s;
}
.tb-btn:hover, .mini-btn:hover, .icon-btn:hover { background: #2a3442; border-color: var(--accent-2); }
.tb-btn:active { transform: translateY(1px); }
.tb-btn.primary { background: var(--accent-2); border-color: var(--accent); }
.tb-btn.primary:hover { background: var(--accent); }
.tb-btn.danger:hover { border-color: var(--danger); color: var(--danger); }
.tb-btn.active { background: var(--accent-2); border-color: var(--accent); color: #fff; }
.tb-btn:disabled { opacity: .45; cursor: not-allowed; }

.tb-select {
  background: var(--bg); color: var(--text);
  border: 1px solid var(--border-2); border-radius: var(--radius);
  padding: 6px 8px; font-size: 13px;
}
.search {
  background: var(--bg); color: var(--text);
  border: 1px solid var(--border-2); border-radius: 20px;
  padding: 7px 14px; min-width: 180px; font-size: 13px;
}
.search:focus, .tb-select:focus { outline: none; border-color: var(--accent); }

.status-group { margin-left: auto; }
.badge {
  font-size: 11px; text-transform: uppercase; letter-spacing: .5px;
  background: var(--panel-2); color: var(--text-dim);
  border: 1px solid var(--border-2); border-radius: 20px; padding: 3px 9px;
}
.badge.server { color: var(--ok); border-color: rgba(63,214,138,.5); }
.save-state { font-size: 12px; color: var(--text-mut); min-width: 52px; text-align: right; }
.save-state.dirty { color: var(--warn); }
.save-state.saving { color: var(--accent); }
.save-state.error { color: var(--danger); }

/* ---------- Workspace ---------- */
#toolbar { flex: 0 0 auto; }
#workspace { position: relative; flex: 1 1 auto; min-height: 0; }
#cy {
  position: absolute; inset: 0;
  background:
    radial-gradient(circle at 1px 1px, rgba(255,255,255,.05) 1px, transparent 0) 0 0 / 26px 26px,
    var(--bg);
  outline: none;
}

.empty-hint {
  position: absolute; top: 50%; left: 50%; transform: translate(-50%,-50%);
  text-align: center; max-width: 440px; color: var(--text-dim); pointer-events: none;
}
.empty-hint h2 { color: var(--text); margin: 0 0 10px; font-weight: 600; }
.empty-hint p { margin: 6px 0; }
.empty-hint .muted { font-size: 12.5px; color: var(--text-mut); }

/* ---------- Legend ---------- */
.legend {
  position: absolute; left: 12px; bottom: 12px;
  background: rgba(21,26,33,.9); backdrop-filter: blur(4px);
  border: 1px solid var(--border); border-radius: var(--radius);
  padding: 8px 10px; max-width: 220px; max-height: 40%; overflow: auto;
  display: flex; flex-direction: column; gap: 5px; font-size: 12px;
}
.legend:empty { display: none; }
.legend .leg-item { display: flex; align-items: center; gap: 8px; cursor: pointer; }
.legend .leg-item:hover { color: #fff; }
.legend .leg-dot { width: 12px; height: 12px; border-radius: 3px; flex: 0 0 auto; }
.legend .leg-count { margin-left: auto; color: var(--text-mut); }
.legend .leg-item.off { opacity: .4; }

/* ---------- Inspector ---------- */
.inspector {
  position: absolute; top: 0; right: 0; bottom: 0; width: 320px;
  background: var(--panel); border-left: 1px solid var(--border);
  display: flex; flex-direction: column; box-shadow: var(--shadow);
  animation: slide-in .14s ease;
}
@keyframes slide-in { from { transform: translateX(16px); opacity: 0; } to { transform: none; opacity: 1; } }
.insp-head {
  display: flex; align-items: center; justify-content: space-between;
  padding: 12px 14px; border-bottom: 1px solid var(--border);
}
.insp-kind { font-weight: 600; color: var(--accent); }
.icon-btn { padding: 4px 9px; }
.insp-body { padding: 14px; overflow: auto; flex: 1; display: flex; flex-direction: column; gap: 14px; }
.insp-foot { padding: 12px 14px; border-top: 1px solid var(--border); display: flex; gap: 8px; }
.insp-foot .tb-btn { flex: 1; }

.field { display: flex; flex-direction: column; gap: 5px; }
.field > span { font-size: 12px; color: var(--text-dim); }
.field input[type=text], .field input[type=search], .field textarea, .field select {
  background: var(--bg); color: var(--text);
  border: 1px solid var(--border-2); border-radius: 6px; padding: 8px 10px; font: inherit;
}
.field input:focus, .field textarea:focus, .field select:focus { outline: none; border-color: var(--accent); }
.field textarea { resize: vertical; }
.field .inline { display: flex; align-items: center; gap: 8px; font-size: 13px; }

.props { width: 100%; border-collapse: collapse; }
.props td { padding: 2px 0; }
.props input { width: 100%; background: var(--bg); color: var(--text);
  border: 1px solid var(--border-2); border-radius: 6px; padding: 6px 8px; font: inherit; }
.props td.k { width: 40%; padding-right: 6px; }
.props td.x { width: 24px; }
.props .rm { background: transparent; border: none; color: var(--text-mut); cursor: pointer; font-size: 14px; }
.props .rm:hover { color: var(--danger); }
.mini-btn { padding: 5px 9px; font-size: 12px; align-self: flex-start; }

/* ---------- Dialogs ---------- */
.dialog {
  border: 1px solid var(--border); border-radius: 12px; padding: 0;
  background: var(--panel); color: var(--text); box-shadow: var(--shadow);
  max-width: 520px; width: 92vw;
}
.dialog::backdrop { background: rgba(0,0,0,.55); }
.dialog-form { padding: 18px 20px; display: flex; flex-direction: column; gap: 14px; }
.dialog h3 { margin: 0; font-weight: 600; }
.dialog .muted { color: var(--text-mut); font-size: 12.5px; margin: 0; }
.csv-grid { display: flex; flex-direction: column; gap: 10px; }
.csv-map { display: grid; grid-template-columns: 1fr 1fr 1fr; gap: 10px; }
.dialog-actions { display: flex; gap: 10px; justify-content: flex-end; margin: 4px 0 0; padding: 0; }
.dialog-actions.column { flex-direction: column; }
.dialog-actions button { min-width: 110px; }

/* ---------- Inspector: schema-defined fields ---------- */
.defined-props { display: flex; flex-direction: column; gap: 10px; }
.def-field.inline-field { flex-direction: row; align-items: center; justify-content: space-between; }
.def-field.inline-field > span { order: 0; }
.def-field input.req-empty, .def-field select.req-empty { border-color: var(--danger); }

/* ---------- Metadata Manager dialog ---------- */
.meta-dialog { width: 780px; max-width: 94vw; }
.meta-form { display: flex; flex-direction: column; }
.meta-head {
  display: flex; align-items: center; justify-content: space-between; gap: 10px;
  padding: 14px 18px; border-bottom: 1px solid var(--border); flex-wrap: wrap;
}
.meta-head h3 { margin: 0; }
.meta-head-actions { display: flex; gap: 8px; flex-wrap: wrap; }
.seg { display: inline-flex; border: 1px solid var(--border-2); border-radius: 8px; overflow: hidden; }
.seg-btn { background: var(--panel-2); border: none; color: var(--text-dim); padding: 7px 14px; cursor: pointer; font: inherit; }
.seg-btn + .seg-btn { border-left: 1px solid var(--border-2); }
.seg-btn.active { background: var(--accent-2); color: #fff; }

/* Inspector: link direction segmented control */
.dir-seg { display: flex; width: 100%; }
.dir-seg .seg-btn { flex: 1; padding: 6px 4px; font-size: 12px; text-align: center; }

.meta-body { display: flex; min-height: 430px; max-height: 64vh; }
.meta-list { width: 236px; border-right: 1px solid var(--border); padding: 12px; overflow: auto; }
.meta-list .mini-btn { width: 100%; margin-bottom: 10px; }
#meta-type-list { list-style: none; margin: 0; padding: 0; display: flex; flex-direction: column; gap: 3px; }
.meta-type { display: flex; align-items: center; gap: 8px; padding: 7px 9px; border-radius: 6px; cursor: pointer; }
.meta-type:hover { background: var(--panel-2); }
.meta-type.sel { background: var(--panel-2); outline: 1px solid var(--accent-2); }
.meta-type .mt-name { flex: 1; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.meta-type .mt-count { color: var(--text-mut); font-size: 11px; }
.meta-empty { color: var(--text-mut); font-size: 12px; padding: 8px; list-style: none; }

.meta-editor { flex: 1; padding: 16px 18px; overflow: auto; }
.meta-hint { color: var(--text-mut); font-size: 13px; line-height: 1.6; }
.ed-row { display: flex; gap: 12px; align-items: flex-end; flex-wrap: wrap; margin-bottom: 12px; }
.ed-row .grow { flex: 1; min-width: 160px; }
.meta-editor .field { margin-bottom: 12px; }
.meta-editor input[type=color] { width: 46px; height: 38px; padding: 2px; background: var(--bg); border: 1px solid var(--border-2); border-radius: 6px; cursor: pointer; }

table.pdef { width: 100%; border-collapse: collapse; margin-top: 4px; }
table.pdef th { text-align: left; font-size: 11px; color: var(--text-mut); font-weight: 500; padding: 2px 4px; }
table.pdef td { padding: 2px 4px; }
table.pdef td.c, table.pdef td.x { text-align: center; width: 34px; }
table.pdef input, table.pdef select {
  width: 100%; background: var(--bg); color: var(--text);
  border: 1px solid var(--border-2); border-radius: 6px; padding: 6px 7px; font: inherit;
}
table.pdef input[type=checkbox] { width: auto; }
.pdef .rm { background: transparent; border: none; color: var(--text-mut); cursor: pointer; font-size: 14px; width: auto; }
.pdef .rm:hover { color: var(--danger); }
.ed-foot { margin-top: 10px; }

.icon-pick { display: flex; flex-wrap: wrap; gap: 6px; }
.ico-swatch {
  width: 34px; height: 34px; border: 1px solid var(--border-2); border-radius: 8px;
  background-color: #2a3442; background-position: center; background-size: 68%; background-repeat: no-repeat;
  cursor: pointer; color: var(--text-dim); font-size: 16px; line-height: 1;
  display: flex; align-items: center; justify-content: center;
}
.ico-swatch:hover { border-color: var(--accent-2); }
.ico-swatch.sel { border-color: var(--accent); outline: 1px solid var(--accent); }
.ico-upload { color: var(--accent); font-weight: 700; }

.meta-form .dialog-actions { padding: 12px 18px; border-top: 1px solid var(--border); margin: 0; }

/* ---------- Data sources dialog ---------- */
#sources-dialog .dialog-form { gap: 12px; }
.src-row { border: 1px solid var(--border); border-radius: 8px; padding: 12px 14px; display: flex; flex-direction: column; gap: 8px; }
.src-head { display: flex; align-items: center; gap: 10px; }
.src-name { font-weight: 600; }
.src-kinds { color: var(--text-mut); font-size: 11px; text-transform: uppercase; letter-spacing: .5px; }
.src-state { margin-left: auto; font-size: 11px; color: var(--text-mut); }
.src-state.on { color: var(--ok); }
.src-ctl { display: flex; gap: 8px; }
.src-ctl .src-key { flex: 1; background: var(--bg); color: var(--text); border: 1px solid var(--border-2); border-radius: 6px; padding: 7px 10px; font: inherit; }
.src-ctl .src-key:focus { outline: none; border-color: var(--accent); }
.src-docs { font-size: 11.5px; color: var(--accent); text-decoration: none; align-self: flex-start; }
.src-docs:hover { text-decoration: underline; }

/* ---------- Context menu ---------- */
.ctx-menu {
  position: fixed; z-index: 1000; min-width: 190px;
  background: var(--panel-2); border: 1px solid var(--border-2);
  border-radius: 8px; box-shadow: var(--shadow); padding: 4px;
  display: flex; flex-direction: column;
}
.ctx-item {
  background: transparent; border: none; color: var(--text);
  text-align: left; padding: 8px 12px; border-radius: 6px; cursor: pointer; font: inherit;
}
.ctx-item:hover { background: var(--accent-2); color: #fff; }
.ctx-item.danger:hover { background: var(--danger); }

/* ---------- Toast ---------- */
.toast {
  position: fixed; bottom: 26px; left: 50%;
  transform: translateX(-50%) translateY(10px);
  background: var(--panel-2); color: var(--text);
  border: 1px solid var(--border-2); border-radius: 20px; padding: 9px 18px;
  box-shadow: var(--shadow); font-size: 13px; z-index: 1001; pointer-events: none;
  opacity: 0; transition: opacity .25s, transform .25s;
}
.toast.show { opacity: 1; transform: translateX(-50%) translateY(0); }

/* ---------- Timeline panel ---------- */
.timeline {
  position: absolute; left: 0; right: 0; bottom: 0; height: 106px; z-index: 40;
  background: rgba(21, 26, 33, .97); backdrop-filter: blur(6px);
  border-top: 1px solid var(--border); padding: 10px 16px;
  display: flex; flex-direction: column; gap: 8px;
}
.inspector { z-index: 50; }               /* keep inspector above the timeline */
body.tl-open #legend { bottom: 120px; }
.tl-controls { display: flex; align-items: center; gap: 14px; flex-wrap: wrap; }
.tl-ctl { display: flex; align-items: center; gap: 6px; font-size: 12px; color: var(--text-dim); }
.tl-ctl.inline input { margin: 0; }
.tl-count { color: var(--text-mut); font-size: 12px; margin-left: auto; }
#tl-play { min-width: 42px; font-size: 13px; }
.tl-track { position: relative; height: 26px; display: flex; align-items: center; }
.tl-track.disabled { opacity: .5; pointer-events: none; }
.tl-ticks { position: absolute; left: 0; right: 0; top: 50%; height: 14px; transform: translateY(-50%); pointer-events: none; }
.tl-tick { position: absolute; top: 0; width: 2px; height: 14px; background: var(--accent); opacity: .55; border-radius: 1px; transform: translateX(-1px); }
#tl-scrub { position: relative; width: 100%; margin: 0; z-index: 2; accent-color: var(--accent); }
.tl-labels { display: flex; justify-content: space-between; font-size: 11px; color: var(--text-mut); }
#tl-cursor { color: var(--accent); font-weight: 600; }

/* scrollbars */
::-webkit-scrollbar { width: 10px; height: 10px; }
::-webkit-scrollbar-thumb { background: var(--border-2); border-radius: 8px; }
::-webkit-scrollbar-track { background: transparent; }