/* Data Twin City Weimar — platform styles.
   Light, minimal analysis-tool UI. Full-height map blocks, each followed by a
   descriptive metadata block in normal flow. */

:root {
  --bg: #F6F3EC;
  --bg-panel: #F6F3EC;
  --bg-panel-2: #ECE7DB;
  --border: #cfc9ba;
  --border-strong: #0D0D0D;
  --text: #0D0D0D;
  --text-dim: #6e6e6e;
  --accent: #EE5A14;
  --danger: #c0564d;
  --shadow: 0 1px 2px rgba(20, 25, 35, 0.06), 0 6px 20px rgba(20, 25, 35, 0.08);
  --panel-bg-translucent: rgba(255, 255, 255, 0.94);
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  padding: 0;
  background: var(--bg);
  color: var(--text);
  font-family: "Helvetica Neue", Helvetica, Arial, sans-serif;
  font-size: 13px;
  -webkit-font-smoothing: antialiased;
}

#boot-msg { padding: 24px; color: var(--text-dim); }

/* ---------- Map block ---------- */

.map-block {
  position: relative;
  width: 100%;
  height: 100vh;
  border-bottom: 1px solid var(--border-strong);
  overflow: hidden;
}

.maplibre-host {
  position: absolute;
  inset: 0;
}

/* Hide MapLibre's own credit UI — we render our own attribution strip. */
.maplibregl-ctrl-attrib,
.maplibregl-ctrl-bottom-right,
.maplibregl-ctrl-bottom-left { display: none !important; }

/* MapLibre popup — light UI. */
.maplibregl-popup-content {
  background: var(--bg-panel);
  color: var(--text);
  border: 1px solid var(--border);
  border-radius: 0;
  box-shadow: var(--shadow);
  font-size: 12px;
  padding: 10px 12px;
}
.maplibregl-popup-content th { text-align: left; padding-right: 8px; color: var(--text-dim); font-weight: 700; }
.maplibregl-popup-content a { color: var(--accent); }
.maplibregl-popup-close-button { color: var(--text-dim); font-size: 16px; }
.maplibregl-popup-tip { display: none; }
.maplibregl-ctrl-group {
  background: var(--bg-panel);
  border: 1px solid var(--border) !important;
  box-shadow: var(--shadow) !important;
}
.maplibregl-ctrl-group button + button { border-top: 1px solid var(--border); }

.block-title {
  position: absolute;
  top: 12px;
  left: 50%;
  transform: translateX(-50%);
  z-index: 12;
  padding: 6px 16px;
  background: var(--panel-bg-translucent);
  border: 1px solid var(--border);
  border-radius: 0;
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.2px;
  white-space: nowrap;
  box-shadow: var(--shadow);
}

/* ---------- Left panel (per block) ---------- */

.sidebar {
  position: absolute;
  top: 12px;
  left: 12px;
  bottom: 40px;
  width: 288px;
  display: flex;
  flex-direction: column;
  background: var(--bg-panel);
  border: 1px solid var(--border);
  border-radius: 0;
  box-shadow: var(--shadow);
  z-index: 10;
  overflow: hidden;
}

.sidebar-header {
  padding: 12px 14px 10px;
  border-bottom: 1px solid var(--border);
  display: flex;
  align-items: flex-start;
  gap: 8px;
}

.sidebar-header-text { flex: 1; min-width: 0; }

.sidebar-header h1 {
  margin: 0;
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.2px;
}

.sidebar-header .subtitle {
  margin: 3px 0 0;
  font-size: 11px;
  color: var(--text-dim);
}

.layer-groups {
  flex: 1;
  overflow-y: auto;
  padding: 4px 0;
}

.panel-empty {
  margin: 0;
  padding: 12px 14px;
  color: var(--text-dim);
}

/* Group (semantic or by-resource) */
.group { border-bottom: 1px solid var(--border); }
.group:last-child { border-bottom: none; }

.group-header {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 9px 12px;
  cursor: pointer;
  user-select: none;
}

.group-header:hover { background: var(--bg-panel-2); }

.group-toggle {
  color: var(--text-dim);
  font-size: 10px;
  width: 12px;
  flex-shrink: 0;
  transition: transform 0.12s ease;
}

.group.collapsed .group-toggle { transform: rotate(-90deg); }
.group.collapsed .group-body { display: none; }

.group-title {
  color: var(--text);
  font-weight: 700;
  font-size: 12px;
  text-decoration: none;
  flex: 1;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

a.group-title:hover { color: var(--accent); text-decoration: underline; }

.group-body { padding: 1px 0 5px; }

/* Layer row — name + eye only, no description */
.layer-row {
  padding: 6px 12px 6px 30px;
}

.layer-row:hover { background: var(--bg-panel-2); }

.layer-main {
  display: flex;
  align-items: center;
  gap: 8px;
}

.layer-name {
  flex: 1;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  color: var(--text);
}

.layer-row.off .layer-name { color: var(--text-dim); }

.eye-btn {
  background: none;
  border: none;
  color: var(--text-dim);
  cursor: pointer;
  font-size: 13px;
  line-height: 1;
  padding: 2px;
  flex-shrink: 0;
  opacity: 0.55;
}

.eye-btn:hover { opacity: 1; }
.layer-row.on .eye-btn { opacity: 1; }

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

.sidebar-toolbar {
  padding: 8px 12px;
  border-top: 1px solid var(--border);
  display: flex;
  flex-direction: column;
  gap: 6px;
}

/* Collapse the toolbar entirely while every button in it is hidden
   (i.e. export mode off) so it leaves no empty bordered strip. */
.sidebar-toolbar:not(:has(button:not([hidden]))) { display: none; }

.sidebar-toolbar button {
  width: 100%;
  padding: 7px 10px;
  background: var(--bg-panel-2);
  color: var(--text);
  border: 1px solid var(--border-strong);
  border-radius: 0;
  cursor: pointer;
  font-size: 12px;
  font-weight: 700;
}

.sidebar-toolbar button:hover:not(:disabled) { border-color: var(--accent); color: var(--accent); }
.sidebar-toolbar button:disabled { color: var(--text-dim); cursor: not-allowed; opacity: 0.55; }
.sidebar-toolbar button[hidden] { display: none; }

/* ---------- Layer export (TASK 09) ---------- */

.btn-export-toggle {
  flex-shrink: 0;
  padding: 5px 9px;
  background: var(--bg-panel-2);
  color: var(--text);
  border: 1px solid var(--border-strong);
  border-radius: 0;
  cursor: pointer;
  font-size: 11px;
  font-weight: 700;
  white-space: nowrap;
}

.btn-export-toggle:hover { border-color: var(--accent); color: var(--accent); }
.btn-export-toggle.active { background: var(--accent); color: #fff; border-color: var(--accent); }

.export-check-wrap {
  display: inline-flex;
  align-items: center;
  flex-shrink: 0;
  cursor: pointer;
}

.export-check-wrap[hidden] { display: none; }
.export-check { margin: 0; cursor: pointer; }
.export-check:disabled { cursor: not-allowed; }

.map-export {
  background: var(--bg);
  padding: 12px clamp(16px, 5vw, 72px);
  border-bottom: 1px solid var(--border-strong);
  font-size: 12px;
  display: flex;
  align-items: center;
  gap: 14px;
  flex-wrap: wrap;
}

.map-export[hidden] { display: none; }

/* The final "Export" (run) button — primary look, overrides the plain
   .sidebar-toolbar button base. Appears right under "Select area". */
.sidebar-toolbar button.btn-export-run {
  background: var(--accent);
  color: #fff;
  border-color: var(--accent);
}

.sidebar-toolbar button.btn-export-run:hover:not(:disabled) {
  color: #fff;
  filter: brightness(1.08);
}

.sidebar-toolbar button.btn-export-run:disabled {
  background: var(--bg-panel-2);
  color: var(--text-dim);
  border-color: var(--border-strong);
  opacity: 1;
}

.export-status { color: var(--text-dim); line-height: 1.4; }

/* ---------- 2D / 3D switch + terrain toggle (per block) ---------- */

.view-controls {
  position: absolute;
  top: 12px;
  right: 12px;
  z-index: 10;
  display: flex;
  flex-direction: column;
  align-items: flex-end;
  gap: 8px;
}

.view-switch {
  display: flex;
  background: var(--bg-panel);
  border: 1px solid var(--border);
  border-radius: 0;
  overflow: hidden;
  box-shadow: var(--shadow);
}

.view-switch button {
  padding: 7px 15px;
  background: none;
  border: none;
  color: var(--text-dim);
  cursor: pointer;
  font-size: 12px;
  font-weight: 700;
}

.view-switch button:hover { color: var(--text); }
.view-switch button.active { background: var(--accent); color: #fff; }

.btn-terrain {
  padding: 7px 14px;
  background: var(--bg-panel);
  color: var(--text-dim);
  border: 1px solid var(--border);
  border-radius: 0;
  cursor: pointer;
  font-size: 12px;
  font-weight: 700;
  box-shadow: var(--shadow);
}

.btn-terrain:hover { color: var(--text); }
.btn-terrain.active { background: var(--accent); color: #fff; border-color: var(--accent); }

/* ---------- Attribution strip (per block) ---------- */

.attribution {
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  padding: 5px 12px;
  background: var(--panel-bg-translucent);
  border-top: 1px solid var(--border);
  color: var(--text-dim);
  font-size: 11px;
  line-height: 1.4;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  z-index: 10;
}

.attribution a { color: var(--text-dim); }

/* ---------- Sources strip (under each map, in normal flow) ---------- */

.map-meta {
  background: var(--bg);
  padding: 12px clamp(16px, 5vw, 72px);
  border-bottom: 1px solid var(--border-strong);
  font-size: 11px;
  line-height: 1.5;
  white-space: nowrap;
  overflow-x: auto;
}

.meta-label {
  color: var(--text-dim);
  font-weight: 700;
  margin-right: 8px;
}

.meta-src {
  color: var(--accent);
  text-decoration: none;
}

.meta-src:hover { text-decoration: underline; }

.meta-sep {
  color: var(--text-dim);
  margin: 0 8px;
}

/* ---------- Export format switch (TASK 28) ---------- */
.export-format { display: flex; flex-direction: column; gap: 4px; }
.export-format[hidden], .export-origin[hidden] { display: none; }
.export-format-sel {
  width: 100%; padding: 6px 8px; font-size: 12px; font-weight: 700;
  background: var(--bg-panel-2); color: var(--text);
  border: 1px solid var(--border-strong); border-radius: 0;
}
.export-origin { font-size: 11px; color: var(--text-dim); cursor: pointer; }

/* ---------- Building use legend (TASK 39) ---------- */
.use-legend {
  position: absolute;
  right: 12px;
  bottom: 34px;
  z-index: 12;
  padding: 8px 10px;
  background: var(--panel-bg-translucent);
  border: 1px solid var(--border);
  border-radius: 0;
  box-shadow: var(--shadow);
  font-size: 11px;
  line-height: 1.5;
  pointer-events: none;
}
.use-legend[hidden] { display: none; }
.use-legend-title { font-weight: 700; margin-bottom: 2px; }
.use-legend-row { display: flex; align-items: center; gap: 6px; }
.use-legend-swatch { width: 12px; height: 12px; border-radius: 2px; border: 1px solid rgba(0,0,0,0.25); flex: none; }

/* =====================================================================
   Swiss layout (landing + three-column map section)
   Helvetica Neue only: regular / bold / italic. Square corners, no shadows.
   ===================================================================== */
:root { --shadow: none; --gutter: clamp(16px, 4vw, 56px); }
button, select, input { font-family: inherit; }
h1, h2, p { margin: 0; }
[hidden] { display: none !important; }

/* ---- Landing ---- */
.landing {
  display: grid;
  grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
  gap: var(--gutter);
  min-height: 100vh;
  padding: var(--gutter);
  border-bottom: 2px solid var(--text);
}
.landing-text { position: relative; display: flex; flex-direction: column; justify-content: space-between; gap: 48px; padding-bottom: var(--menu-list-h, 0px); }
/* Sources sit in the reserved space under the title; the last line ends level
   with the text of the last menu entry (menu-item padding 18px + 1px border). */
.landing-sources-block { position: absolute; left: 0; right: 0; bottom: 17px; }
.landing-sources-block .landing-sub { margin-top: 0; }
.landing-inst { font-size: 14px; line-height: 1.04; letter-spacing: -0.01em; }
.landing-inst strong { display: block; font-weight: 400; font-style: normal; }
.landing-inst span { display: block; font-weight: 400; }
.landing-title { font-size: clamp(48px, 8.25vw, 126px); line-height: 0.9; letter-spacing: -0.04em; font-weight: 700; }
.landing-title-top { display: block; font-size: 0.2267em; letter-spacing: -0.02em; margin-bottom: 0.18em; }
.landing-sources { list-style: none; margin: 10px 0 0; padding: 0; font-size: 13px; line-height: 1.6; font-style: italic; }
.landing-sources a { color: var(--text); text-decoration: underline; text-underline-offset: 3px; }
.landing-sources a:hover { color: var(--accent); }
.landing-sub { margin-top: 18px; font-size: 14px; font-style: normal; font-weight: 400; letter-spacing: -0.01em; }
.landing-menu { display: flex; flex-direction: column; justify-content: flex-end; }
.menu-label { font-size: 11px; font-weight: 700; text-transform: uppercase; letter-spacing: 0.08em; padding-bottom: 10px; border-bottom: 2px solid var(--text); }
.menu-list { display: flex; flex-direction: column; }
.menu-item {
  display: grid; grid-template-columns: 44px 1fr auto; align-items: baseline;
  padding: 18px 0; background: none; border: none; border-bottom: 1px solid var(--text);
  color: var(--text); text-align: left; cursor: pointer;
  font-size: clamp(18px, 2vw, 26px); font-weight: 400; letter-spacing: -0.01em;
}
.menu-num { font-size: 12px; font-weight: 700; letter-spacing: 0.04em; }
.menu-arrow { font-weight: 400; transition: transform 0.15s ease; }
.menu-item:hover { color: var(--accent); }
.menu-item:hover .menu-arrow { transform: translateY(3px); }
.menu-item.active { font-weight: 700; color: var(--accent); }

/* ---- Stage ---- */
#stage { padding: var(--gutter) var(--gutter) 0; border-bottom: none; background: var(--bg); }
.map-block { border: 1px solid var(--text); }
.map-block {
  display: grid;
  grid-template-columns: 336px minmax(0, 1fr) 336px;
  height: calc(100vh - 8px);
  min-height: 600px;
  padding: 0;
  border-bottom: 1px solid var(--text);
  overflow: hidden;
  background: var(--bg);
}
.map-center { position: relative; min-width: 0; border-left: 1px solid var(--text); border-right: 1px solid var(--text); }
.map-block .sidebar, .map-block .tools {
  position: static; width: auto; bottom: auto; z-index: auto;
  display: flex; flex-direction: column; min-height: 0;
  background: var(--bg-panel); border: none; border-radius: 0; box-shadow: none;
}
.sidebar-header { align-items: baseline; padding: 14px 16px 12px; border-bottom: 1px solid var(--text); }
.sidebar-header h2 { font-size: 15px; font-weight: 700; letter-spacing: -0.01em; }
.sidebar-header .subtitle { margin-top: 3px; font-size: 11px; font-style: italic; color: var(--text-dim); }
.group-title { font-size: 11px; text-transform: uppercase; letter-spacing: 0.06em; }
.tools-body { flex: 1; overflow-y: auto; }
.tools-section { padding: 14px 16px 16px; border-bottom: 1px solid var(--border); display: flex; flex-direction: column; gap: 8px; }
.tools-label { font-size: 11px; font-weight: 700; text-transform: uppercase; letter-spacing: 0.06em; }
.tools-row { display: grid; grid-template-columns: 1fr 1fr; gap: 6px; }
.tools-note { font-size: 11px; font-style: italic; color: var(--text-dim); }

/* Buttons: outlined black, active = filled black */
.tools button, .view-switch button, .btn-terrain {
  padding: 8px 10px; background: var(--bg-panel); color: var(--text);
  border: 1px solid var(--text); border-radius: 0; cursor: pointer;
  font-size: 12px; font-weight: 700; width: 100%;
}
.tools button:hover:not(:disabled), .btn-terrain:hover { background: var(--text); color: #fff; }
.tools button:disabled { color: var(--text-dim); border-color: var(--border); background: var(--bg-panel); cursor: not-allowed; opacity: 1; }
.tools .btn-export-toggle.active { background: var(--text); color: #fff; }
.tools .sidebar-toolbar { padding: 0; border: none; gap: 6px; }
.tools .sidebar-toolbar button.btn-export-run { background: var(--accent); border-color: var(--accent); color: #fff; }
.tools .sidebar-toolbar button.btn-export-run:disabled { background: var(--bg-panel); color: var(--text-dim); border-color: var(--border); }
.tools .map-export { padding: 0; border: none; background: none; font-size: 11px; line-height: 1.4; display: block; }

.view-controls { top: 12px; left: 12px; right: auto; align-items: flex-start; }
.view-switch { border: 1px solid var(--text); }
.view-switch button { width: auto; border: none; padding: 7px 14px; }
.view-switch button.active, .btn-terrain.active { background: var(--text); color: #fff; }
.btn-terrain { width: auto; }
.attribution { background: rgba(255,255,255,0.94); border-top: 1px solid var(--text); }
.use-legend { right: 12px; bottom: 34px; }

.map-meta { padding: 12px 0 var(--gutter); border-bottom: none; background: var(--bg); }
.meta-src { color: var(--text); text-decoration: underline; }
.meta-src:hover { color: var(--accent); }
.maplibregl-popup-content { border: 1px solid var(--text); }

/* ---- Responsive ---- */
@media (max-width: 1000px) {
  .landing { grid-template-columns: 1fr; min-height: auto; }
  .landing-text { padding-bottom: 0; }
  .landing-sources-block { position: static; }
  .map-block { grid-template-columns: 1fr; grid-template-rows: auto 70vh auto; height: auto; }
  .map-center { border: none; border-top: 1px solid var(--text); border-bottom: 1px solid var(--text); }
  .map-block .sidebar .layer-groups { max-height: 40vh; }
}

/* ---- Bauhaus pass ---- */
body { background: var(--bg); }
.landing { background: var(--bg); }
.use-legend { display: flex; gap: 14px; max-height: calc(100% - 80px); overflow: hidden; background: var(--bg); border: 1px solid var(--text); }
.use-legend-block { min-width: 0; }
.use-legend-title { text-transform: uppercase; letter-spacing: 0.06em; font-size: 10px; margin-bottom: 4px; }
.use-legend-swatch { border-radius: 0; border: none; }

.view-pick { display: grid; grid-template-columns: auto 1fr 1fr; align-items: center; gap: 6px; padding: 10px 16px; border-bottom: 1px solid var(--text); }
.view-pick-label { font-size: 11px; font-weight: 700; text-transform: uppercase; letter-spacing: 0.06em; margin-right: 4px; }
.view-pick button { padding: 6px 8px; background: var(--bg-panel); color: var(--text); border: 1px solid var(--text); border-radius: 0; cursor: pointer; font-size: 12px; font-weight: 700; }
.view-pick button:hover { background: var(--text); color: var(--bg); }
.view-pick button.active { background: var(--text); color: var(--bg); }

.cat-btn { background: none; border: 1px solid var(--text); width: 22px; height: 22px; padding: 0; cursor: pointer; font-size: 11px; line-height: 1; color: var(--text); flex-shrink: 0; }
.cat-btn:hover, .cat-btn.open { background: var(--text); color: var(--bg); }
.cat-panel { margin: 6px 0 4px; padding: 8px 10px; border: 1px solid var(--text); background: var(--bg-panel); max-height: 240px; overflow-y: auto; }
.cat-actions { display: flex; gap: 6px; margin-bottom: 6px; }
.cat-actions button { flex: 1; padding: 3px 6px; background: none; border: 1px solid var(--text); border-radius: 0; cursor: pointer; font-size: 11px; font-weight: 700; color: var(--text); }
.cat-actions button:hover { background: var(--text); color: var(--bg); }
.cat-item { display: flex; align-items: center; gap: 6px; padding: 2px 0; font-size: 12px; cursor: pointer; }
.cat-item input { margin: 0; accent-color: var(--text); }
.cat-item .use-legend-swatch { width: 12px; height: 12px; }

.tools .btn-grid.active { background: var(--text); color: var(--bg); }
.tools button:hover:not(:disabled), .btn-terrain:hover { color: var(--bg); }
.tools .btn-export-toggle.active, .view-switch button.active, .btn-terrain.active { color: var(--bg); }
.layer-row.on .layer-name { font-weight: 700; }

#stage { padding-top: 24px; }
.map-block { height: calc(100vh - 48px); }
.cat-btn { font-size: 15px; font-weight: 700; }

/* ---- white site, annotations, export zone ---- */
:root { --bg: #FFFFFF; --bg-panel: #FFFFFF; --bg-panel-2: #F2F2F2; --border: #D6D6D6; }
body, .landing, #stage, .map-meta, .map-block, .map-block .sidebar, .map-block .tools { background: #FFFFFF; }
.use-legend { left: 12px; right: auto; bottom: 34px; background: #FFFFFF; }
.btn-annot {
  position: absolute; right: 12px; bottom: 34px; z-index: 12; padding: 8px 12px;
  background: #FFFFFF; color: var(--text); border: 1px solid var(--text); border-radius: 0;
  font-size: 12px; font-weight: 700; cursor: pointer;
}
.btn-annot:hover, .btn-annot.active { background: var(--text); color: #FFFFFF; }
.tools .map-export.warn, .map-export.warn { color: #C4161C; }
.tools .btn-zone.active { background: var(--text); color: #FFFFFF; }

/* ---- legend (conditional signs) + screen grid ---- */
.use-legend { pointer-events: auto; overflow: auto; max-width: calc(100% - 24px); }
.use-legend-line { width: 12px; height: 3px; flex: none; }
.grid-canvas { position: absolute; left: 0; top: 0; pointer-events: none; z-index: 5; }
.grid-canvas[hidden] { display: none; }
.grid-label {
  position: absolute; left: 50%; bottom: 34px; transform: translateX(-50%); z-index: 12;
  padding: 4px 10px; background: #FFFFFF; border: 1px solid var(--text); font-size: 12px; font-weight: 700;
  pointer-events: none;
}

.use-legend-swatch.dot { border-radius: 50%; box-shadow: inset 0 0 0 1px #0D0D0D; }

/* ---- legend: single vertical column on the right ---- */
.use-legend {
  left: auto; right: 12px; top: 118px; bottom: auto; width: 236px;
  flex-direction: column; gap: 10px; max-height: calc(100% - 118px - 84px); overflow-y: auto;
}
.use-legend-block { width: 100%; }
.sub-panel { margin: 4px 0 4px 0; padding: 4px 8px; border: 1px solid var(--text); background: #FFFFFF; }
.sub-row { display: flex; align-items: center; gap: 8px; padding: 3px 0; }
.sub-name { flex: 1; font-size: 12px; }
.sub-row.off .sub-name { color: var(--text-dim); }
.layer-row.partial .eye-btn { opacity: 0.55; }

/* second map window stacked under the main one in the same section (e.g. Space Syntax under Simplified Model) */
.stage-sub { margin-top: 40px; }
.btn-material { display: block; padding: 8px 10px; border: 1px solid var(--text); font-size: 12px; text-align: center; color: var(--text); text-decoration: none; }
a.btn-material:hover { background: var(--text); color: #fff; }
.btn-material.is-soon { border-style: dashed; border-color: var(--border); color: var(--text-dim); cursor: default; }