/* openconformity concept mockup */

@font-face {
  font-family: "IBM Plex Sans";
  src: url("assets/fonts/IBMPlexSans-Regular.woff2") format("woff2");
  font-weight: 400; font-style: normal; font-display: swap;
}
@font-face {
  font-family: "IBM Plex Sans";
  src: url("assets/fonts/IBMPlexSans-Medium.woff2") format("woff2");
  font-weight: 500; font-style: normal; font-display: swap;
}
@font-face {
  font-family: "IBM Plex Mono";
  src: url("assets/fonts/IBMPlexMono-Regular.woff2") format("woff2");
  font-weight: 400; font-style: normal; font-display: swap;
}

:root {
  --field:    #FFFFFF;   /* you can type or pick here */
  --chrome:   #E2E2E2;   /* gray-2, the tool itself   */
  --editor:   #F6F6F6;   /* gray-1, read-only surface */
  --border:   #8B8B8B;   /* gray-3, visible           */
  --ink:      #222222;   /* gray-6                    */
  --muted:    #6F6F6F;   /* gray-4                    */
  --accent:   #00618E;   /* spec accent (G-SYS-003)   */
}

* { margin: 0; padding: 0; box-sizing: border-box; }
html, body { height: 100%; }

body {
  font-family: "IBM Plex Sans", Tahoma, sans-serif;
  font-size: 13px;
  color: var(--ink);
  background: var(--chrome);
  display: flex;
  flex-direction: column;
  overflow: hidden;
}

.mono { font-family: "IBM Plex Mono", ui-monospace, monospace; }

/* ---------- Menu bar ---------- */

.menubar {
  background: var(--accent);
  color: #FFFFFF;
  display: flex;
  align-items: center;
  gap: 18px;
  padding: 0 12px;
  height: 34px;
  flex: none;
}

.wordmark {
  display: block;
  width: 129px;
  height: 18px;
  flex: none;
  margin-right: 6px;
  background: #FFFFFF;
  -webkit-mask: url('assets/marks/wordmark.svg') no-repeat center / contain;
  mask: url('assets/marks/wordmark.svg') no-repeat center / contain;
}

.menu { display: flex; }
.menu-item {
  padding: 4px 9px;
  cursor: default;
  user-select: none;
  color: #FFFFFF;
}
.menu-item:hover { background: rgba(255,255,255,0.22); }

/* ---------- Toolbar ---------- */

.toolbar {
  height: 30px;
  flex: none;
  background: var(--chrome);
  border-bottom: 1px solid var(--border);
  display: flex;
  align-items: center;
  gap: 4px;
  padding: 0 6px;
}

.tb-btn {
  height: 22px;
  display: flex;
  align-items: center;
  gap: 5px;
  padding: 0 8px;
  border: 1px solid transparent;
  background: none;
  font-family: inherit;
  font-size: 12px;
  color: var(--ink);
  cursor: default;
}
.tb-btn:hover { border-color: var(--border); background: var(--field); }
.tb-sep { width: 1px; height: 18px; background: var(--border); margin: 0 4px; }

/* ---------- Workspace ---------- */

.workspace { flex: 1; display: flex; min-height: 0; padding: 4px; }
.col { display: flex; flex-direction: column; min-height: 0; }
.col-left  { width: 296px; flex: none; }
.col-right { flex: 1; min-width: 0; }

.pane {
  display: flex;
  flex-direction: column;
  min-height: 0;
  border: 1px solid var(--border);
  background: var(--field);
}

.pane-head {
  height: 22px;
  flex: none;
  background: var(--chrome);
  border-bottom: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 7px;
  font-size: 11px;
  font-weight: 500;
}

.pane-body { flex: 1; min-height: 0; overflow: auto; }

/* ---------- Tree ---------- */

.search {
  padding: 4px;
  background: var(--chrome);
  border-bottom: 1px solid var(--border);
  flex: none;
}
.search input {
  width: 100%;
  font-family: inherit;
  font-size: 12px;
  padding: 3px 6px;
  border: 1px solid var(--border);
  background: var(--field);
  color: var(--ink);
}

.tree { padding: 3px 0; }

.node {
  display: flex;
  align-items: center;
  gap: 5px;
  padding: 2px 6px;
  cursor: default;
  white-space: nowrap;
}
.node:hover { background: #D6E9F2; }
.node.sel { background: var(--accent); color: #FFFFFF; }
.node.sel .id { color: #FFFFFF; }
.node.sel .icon { fill: #FFFFFF; }

.icon { width: 16px; height: 16px; flex: none; fill: var(--ink); }
.id { font-family: "IBM Plex Mono", monospace; font-size: 11px; color: var(--muted); }

.twisty {
  width: 14px; height: 14px; flex: none;
  display: inline-flex; align-items: center; justify-content: center;
  border: 1px solid var(--muted);
  background: var(--field);
  font-size: 13px;
  font-weight: 500;
  line-height: 1;
  color: var(--ink);
  cursor: pointer;
  user-select: none;
}
.twisty:hover { border-color: var(--accent); color: var(--accent); }
.spacer { width: 13px; flex: none; }

.d1 { padding-left: 6px; }
.d2 { padding-left: 22px; }
.d3 { padding-left: 38px; }
.d4 { padding-left: 54px; }
.d5 { padding-left: 70px; }
.pillar { font-weight: 400; }

/* ---------- Editor ---------- */

.editor-body {
  flex: 1;
  min-height: 0;
  overflow: auto;
  background: var(--editor);
  padding: 12px 14px;
}

.entity-head {
  display: flex;
  align-items: center;
  gap: 8px;
  height: 28px;
  padding: 0 14px;
  border-bottom: 1px solid var(--border);
  background: var(--chrome);
  flex: none;
}
.entity-head .sw { width: 13px; height: 13px; }
.entity-kind { font-size: 12px; color: var(--muted); }
.entity-name { font-size: 13px; font-weight: 500; }

.field-row { display: flex; align-items: center; gap: 10px; margin-bottom: 7px; }
.field-label { width: 128px; flex: none; text-align: right; color: var(--ink); }
.field-in {
  flex: 1;
  max-width: 460px;
  font-family: inherit;
  font-size: 13px;
  padding: 3px 6px;
  border: 1px solid var(--border);
  background: var(--field);
  color: var(--ink);
}
.field-in.ro { background: var(--chrome); color: var(--muted); font-family: "IBM Plex Mono", monospace; font-size: 12px; }
.field-in:focus { outline: 1px solid var(--accent); outline-offset: -2px; }
textarea.field-in { resize: vertical; height: 54px; }

/* ---------- Relationships ---------- */

.rel { height: 190px; flex: none; }

.tabs { display: flex; gap: 0; }
.tab {
  font-family: inherit;
  font-size: 11px;
  padding: 1px 12px;
  border: 1px solid var(--border);
  border-bottom: none;
  background: var(--chrome);
  color: var(--muted);
  cursor: default;
  margin-bottom: -1px;
}
.tab.on { background: var(--field); color: var(--ink); font-weight: 500; }

table.rel-t { border-collapse: collapse; width: 100%; }
.rel-t th {
  text-align: left;
  font-weight: 500;
  font-size: 11px;
  padding: 3px 8px;
  background: var(--chrome);
  border: 1px solid var(--border);
  white-space: nowrap;
}
.rel-t td {
  padding: 3px 8px;
  border: 1px solid var(--border);
  white-space: nowrap;
}
.rel-t tr:hover td { background: #D6E9F2; }
.cellicon { display: flex; align-items: center; gap: 6px; }

.statusbar {
  height: 22px;
  flex: none;
  background: var(--chrome);
  border-top: 1px solid var(--border);
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 0 8px;
  font-size: 11px;
  color: var(--muted);
}

/* ---------- Added for hierarchy, interaction, modals ---------- */

.children.collapsed { display: none; }
.node.sel .icon { fill: #FFFFFF; }
.hit-hidden { display: none; }

.tb-btn { cursor: pointer; }
.tb-btn:disabled { opacity: 1; }

.rel-view.hidden { display: none; }
.graph-svg { width: 100%; max-width: 900px; display: block; }
.g-node rect { fill: var(--field); stroke: var(--border); }
.g-node.g-sel rect { stroke: var(--accent); stroke-width: 2; }
.g-type { font-family: inherit; font-size: 9px; text-transform: uppercase; letter-spacing: 0.04em; fill: var(--muted); }
.g-id { font-family: "IBM Plex Mono", monospace; font-size: 10px; fill: var(--muted); }
.g-name { font-family: inherit; font-size: 12px; font-weight: 500; fill: var(--ink); }
.g-label { font-family: inherit; font-size: 11px; fill: var(--muted); text-anchor: middle; }

.modal-overlay {
  position: fixed; inset: 0;
  background: rgba(34,34,34,0.5);
  display: flex; align-items: center; justify-content: center;
  z-index: 100; padding: 24px;
}
.modal-overlay.hidden { display: none; }
.modal {
  display: flex; flex-direction: column;
  width: 100%; max-width: 1100px; max-height: 100%;
  background: var(--field); border: 1px solid var(--border);
  overflow: hidden;
}
.modal-narrow { max-width: 460px; }
.modal-head {
  display: flex; align-items: center; justify-content: space-between;
  padding: 8px 12px; border-bottom: 1px solid var(--border);
  background: var(--chrome); flex: none;
}
.modal-title { font-size: 11px; font-weight: 500; }
.modal-close { border: none; background: none; color: var(--muted); font-size: 18px; line-height: 1; padding: 2px 6px; cursor: pointer; }
.modal-body { padding: 14px; overflow: auto; }
.modal-body img { display: block; width: 100%; height: auto; }
.modal-text { line-height: 1.6; }
.modal-text p { margin-bottom: 10px; }
.modal-text p:last-child { margin-bottom: 0; }
.modal-text a { color: var(--accent); }

.nav-clear {
  position: absolute; right: 8px; top: 50%; transform: translateY(-50%);
  border: none; background: none; color: var(--muted);
  font-size: 14px; line-height: 1; padding: 2px 4px; cursor: pointer;
}
.search { position: relative; }

/* ---------- Dropdowns ---------- */
.dropdown-layer { position: absolute; top:0; left:0; z-index: 50; }
.dropdown {
  display: none;
  position: fixed;
  min-width: 200px;
  padding: 4px;
  background: var(--field);
  border: 1px solid var(--border);
  box-shadow: 0 4px 12px rgba(34,34,34,0.16);
}
.dropdown.open { display: block; }
.dd-item { display: block; padding: 5px 10px; color: var(--ink); white-space: nowrap; cursor: default; }
.dd-item:hover { background: #D6E9F2; }
.dd-sep { height: 1px; background: var(--border); margin: 4px 6px; }
.menu-item.open { background: rgba(255,255,255,0.22); }

/* ---------- Resizable splitters ---------- */
.splitter-v {
  width: 4px;
  flex: none;
  cursor: col-resize;
  background: transparent;
  align-self: stretch;
}
.splitter-v:hover { background: var(--accent); }
.splitter-h {
  height: 4px;
  flex: none;
  cursor: row-resize;
  background: transparent;
}
.splitter-h:hover { background: var(--accent); }
body.resizing-v { cursor: col-resize; user-select: none; }
body.resizing-h { cursor: row-resize; user-select: none; }

/* ---------- Mockup placeholder colour swatches (draw.io pillar colours) ----------
   Stand-in for entity-type icons until the icon set is settled.
   Note: colour alone violates N-ACC-002; this is a pre-icon mockup placeholder only. */
/* pillar colour on the BORDER, neutral fill (pre-icon placeholder) */
.sw-structure    { border-color: #6C8EBF; }
.sw-legislative  { border-color: #D79B00; }
.sw-requirements { border-color: #B85450; }
.sw-hazard       { border-color: #82B366; }
.sw-folder       { border-color: var(--muted); }

.cellsw { display: flex; align-items: center; gap: 7px; }

/* graph node fills by pillar (mockup placeholder) */
.g-structure rect    { fill: #DAE8FC; stroke: var(--ink); }
.g-legislative rect  { fill: #FFE6CC; stroke: var(--ink); }
.g-requirements rect { fill: #F8CECC; stroke: var(--ink); }
.g-hazard rect       { fill: #D5E8D4; stroke: var(--ink); }
.g-node rect { stroke-width: 1; }
.g-node.g-sel rect { stroke: var(--accent); stroke-width: 2; }


/* Direction arrow in relationships list */
.dir-arrow { color: var(--muted); font-weight: 500; margin-right: 2px; }





/* ---------- Tree (nested, with connector lines) ---------- */
.tree { padding: 4px 0; }

.row {
  display: flex;
  align-items: center;
  gap: 5px;
  height: 22px;              /* fixed row height so connector lines align */
  padding: 0 6px;
  white-space: nowrap;
  cursor: default;
  position: relative;
}
.row:hover { background: #D6E9F2; }
.tnode.sel > .row { background: var(--accent); color: #FFFFFF; }
.tnode.sel > .row .id { color: #FFFFFF; opacity: 0.8; }
.tnode.sel > .row .sw { border-color: #FFFFFF; }

.row .id { font-family: "IBM Plex Mono", monospace; font-size: 11px; color: var(--muted); flex: none; }
.row > span:last-child { overflow: hidden; text-overflow: ellipsis; }
.pillar { font-weight: 400; }

.twisty {
  width: 14px; height: 14px; flex: none;
  display: inline-flex; align-items: center; justify-content: center;
  border: 1px solid var(--muted);
  background: var(--field);
  font-size: 13px; font-weight: 500; line-height: 1;
  color: var(--ink);
  cursor: pointer; user-select: none;
  position: relative;         /* sit above connector lines */
  z-index: 1;
}
.twisty:hover { border-color: var(--accent); color: var(--accent); }
.tw-none { display: none; }

.sw {
  width: 11px; height: 11px; flex: none;
  border: 1px solid var(--ink);
  background: var(--field);
  position: relative;
  z-index: 1;
}
.sw-structure    { background: #DAE8FC; }
.sw-legislative  { background: #FFE6CC; }
.sw-requirements { background: #F8CECC; }
.sw-hazard       { background: #D5E8D4; }
.sw-folder       { background: #F5F5F5; }






/* ---------- Tree connector lines (canonical border-left pattern) ---------- */
/* Vertical line: border-left on each child item (spans its whole subtree height).
   Last child: transparent border, so the line stops at its elbow.
   Elbow: ::before draws a bottom+left bordered corner box ending at the row center. */

.tchildren {
  margin-left: 13px;          /* aligns the line under the parent's twisty */
}
.tchildren > .tnode {
  position: relative;
  border-left: 1px solid var(--border);
  padding-left: 16px;
}
.tchildren > .tnode:last-child {
  border-left-color: transparent;
}
.tchildren > .tnode::before {
  content: "";
  position: absolute;
  top: -11px;                 /* from the previous row's center */
  left: -1px;                 /* overlap the border-left line */
  width: 21px;                /* stop at the twisty box edge */
  height: 22px;               /* ends at this row's center (22px rows) */
  border: solid var(--border);
  border-width: 0 0 1px 1px;  /* draw the corner: vertical + horizontal elbow */
}

.tchildren.collapsed { display: none; }

.rel-view { padding: 0; }

/* Editor action buttons (mockup) */
.btn-row {
  display: flex;
  gap: 8px;
  margin-top: 14px;
  padding-left: 138px;   /* aligns under the inputs (label 128px + gap 10px) */
}
.btn {
  font-family: inherit;
  font-size: 12px;
  padding: 4px 16px;
  border: 1px solid var(--border);
  background: var(--field);
  color: var(--ink);
  cursor: pointer;
}
.btn:hover { border-color: var(--muted); }
.btn:active { background: var(--chrome); }
.btn.primary {
  background: var(--accent);
  border-color: var(--accent);
  color: #FFFFFF;
}
.btn.primary:hover { background: #00527A; border-color: #00527A; }
.btn.primary:active { background: #004466; border-color: #004466; }