/* ============================================================
   Stacking Plan Builder — styles
   Tokens follow the light/dark pattern: OS preference by default,
   [data-theme] stamp (in-app toggle) wins in both directions.
   ============================================================ */

:root {
  color-scheme: light;
  /* chrome */
  --page:    #f9f9f7;
  --surface: #fcfcfb;
  --ink:     #0b0b0b;
  --ink-2:   #52514e;
  --muted:   #898781;
  --grid:    #e1e0d9;
  --axis:    #c3c2b7;
  --border:  rgba(11, 11, 11, 0.10);
  /* accent (controls only, never a data mark) */
  --accent:      #2a78d6;
  --accent-soft: #cde2fb;
  /* risk buckets — CVD-validated (see README) */
  --c-crit: #d03b3b;   /* expiring ≤ 12 mo, or month-to-month */
  --c-mid:  #eda100;   /* 1–3 yrs */
  --c-far:  #2a78d6;   /* 3+ yrs */
  --c-vac:  #edece7;   /* vacant fill */
  --hatch:  #b9b7ae;   /* vacant hatch ink */
  --on-crit: #ffffff;
  --on-mid:  #231a00;
  --on-far:  #ffffff;
  --shadow: 0 8px 24px rgba(11, 11, 11, 0.12);
}

@media (prefers-color-scheme: dark) {
  :root:where(:not([data-theme="light"])) {
    color-scheme: dark;
    --page:    #0d0d0d;
    --surface: #1a1a19;
    --ink:     #ffffff;
    --ink-2:   #c3c2b7;
    --muted:   #898781;
    --grid:    #2c2c2a;
    --axis:    #383835;
    --border:  rgba(255, 255, 255, 0.10);
    --accent:      #3987e5;
    --accent-soft: #104281;
    --c-crit: #d03b3b;
    --c-mid:  #c98500;
    --c-far:  #3987e5;
    --c-vac:  #262624;
    --hatch:  #4a4a46;
    --on-mid:  #140f00;
    --shadow: 0 8px 24px rgba(0, 0, 0, 0.5);
  }
}
:root[data-theme="dark"] {
  color-scheme: dark;
  --page:    #0d0d0d;
  --surface: #1a1a19;
  --ink:     #ffffff;
  --ink-2:   #c3c2b7;
  --muted:   #898781;
  --grid:    #2c2c2a;
  --axis:    #383835;
  --border:  rgba(255, 255, 255, 0.10);
  --accent:      #3987e5;
  --accent-soft: #104281;
  --c-crit: #d03b3b;
  --c-mid:  #c98500;
  --c-far:  #3987e5;
  --c-vac:  #262624;
  --hatch:  #4a4a46;
  --on-mid:  #140f00;
  --shadow: 0 8px 24px rgba(0, 0, 0, 0.5);
}

* { box-sizing: border-box; }

html, body { margin: 0; }

body {
  background: var(--page);
  color: var(--ink);
  font: 14px/1.45 system-ui, -apple-system, "Segoe UI", sans-serif;
  -webkit-text-size-adjust: 100%;
}

button { font: inherit; color: inherit; }

/* ---------- top bar ---------- */

.topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 10px 16px;
  max-width: 1280px;
  margin: 0 auto;
}

.brand { display: flex; align-items: center; gap: 10px; min-width: 0; }

.brand svg { flex: none; color: var(--accent); }

.brand h1 {
  font-size: 15px;
  font-weight: 650;
  margin: 0;
  letter-spacing: -0.01em;
  white-space: nowrap;
}

.subtitle {
  margin: 0;
  font-size: 12px;
  color: var(--ink-2);
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.actions { display: flex; align-items: center; gap: 8px; flex: none; }

.btn {
  appearance: none;
  border: 1px solid var(--border);
  background: var(--surface);
  border-radius: 8px;
  padding: 6px 12px;
  font-size: 13px;
  font-weight: 550;
  cursor: pointer;
  white-space: nowrap;
}

.btn:hover { border-color: var(--axis); }

.btn.primary {
  background: var(--accent);
  border-color: transparent;
  color: #fff;
}

.btn.icon { padding: 6px 9px; }

.file-btn { position: relative; overflow: hidden; display: inline-block; }
.file-btn input {
  position: absolute;
  inset: 0;
  opacity: 0;
  cursor: pointer;
}

/* ---------- time bar (scopes everything below it) ---------- */

.timebar {
  position: sticky;
  top: 0;
  z-index: 20;
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 10px 16px;
  max-width: 1280px;
  margin: 0 auto;
  background: color-mix(in srgb, var(--page) 82%, transparent);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--grid);
}

.playbtn {
  appearance: none;
  border: none;
  background: var(--accent);
  color: #fff;
  width: 34px;
  height: 34px;
  border-radius: 50%;
  cursor: pointer;
  font-size: 13px;
  display: grid;
  place-items: center;
  flex: none;
}

.asof {
  flex: none;
  display: flex;
  flex-direction: column;
  line-height: 1.15;
  min-width: 72px;
}

.asof-label {
  font-size: 10px;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--muted);
}

.asof output {
  font-size: 14px;
  font-weight: 650;
  font-variant-numeric: tabular-nums;
  white-space: nowrap;
}

.timebar input[type="range"] {
  flex: 1;
  accent-color: var(--accent);
  min-width: 80px;
  height: 28px;
  margin: 0;
}

/* ---------- layout ---------- */

.layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 316px;
  gap: 14px;
  padding: 14px 16px 40px;
  max-width: 1280px;
  margin: 0 auto;
  align-items: start;
}

.card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 14px 16px 16px;
  min-width: 0;
}

.card h2 {
  font-size: 12px;
  font-weight: 650;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--ink-2);
  margin: 0 0 2px;
}

.card .sub { font-size: 11.5px; color: var(--muted); margin: 0 0 10px; }

/* ---------- chart card head: legend + view toggle ---------- */

.card-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  flex-wrap: wrap;
  margin-bottom: 10px;
}

.legend { display: flex; align-items: center; gap: 4px; flex-wrap: wrap; }

.chip {
  appearance: none;
  border: 1px solid transparent;
  background: none;
  border-radius: 8px;
  padding: 4px 8px;
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 12px;
  color: var(--ink-2);
  cursor: pointer;
  white-space: nowrap;
}

.chip:hover { background: color-mix(in srgb, var(--ink) 5%, transparent); }

.chip[aria-pressed="true"] {
  border-color: var(--axis);
  background: color-mix(in srgb, var(--ink) 6%, transparent);
  color: var(--ink);
}

.chip .sw {
  width: 12px;
  height: 12px;
  border-radius: 3px;
  flex: none;
}

.sw.b-r0 { background: var(--c-crit); }
.sw.b-r1 { background: var(--c-mid); }
.sw.b-r2 { background: var(--c-far); }
.sw.b-vac {
  background: repeating-linear-gradient(
    45deg,
    var(--c-vac) 0 2.5px,
    var(--hatch) 2.5px 3.5px
  );
}

.chip .ct { color: var(--muted); font-variant-numeric: tabular-nums; }

.seg {
  display: flex;
  border: 1px solid var(--border);
  border-radius: 8px;
  overflow: hidden;
  flex: none;
}

.seg button {
  appearance: none;
  border: none;
  background: none;
  padding: 5px 11px;
  font-size: 12px;
  font-weight: 550;
  color: var(--ink-2);
  cursor: pointer;
}

.seg button[aria-selected="true"] { background: var(--accent); color: #fff; }

/* ---------- building SVG ---------- */

.stack-wrap { position: relative; }

#stackSvg { display: block; width: 100%; height: auto; }

#stackSvg text {
  font-family: system-ui, -apple-system, "Segoe UI", sans-serif;
  user-select: none;
  pointer-events: none;
}

.floor-lab { fill: var(--ink-2); font-size: 11px; font-weight: 600; }
.floor-sf  { fill: var(--muted); font-size: 10px; font-variant-numeric: tabular-nums; }
.baseline  { stroke: var(--axis); stroke-width: 1; }

.suite .fillrect { transition: fill 0.45s ease; }
.suite .hatchrect { opacity: 0; transition: opacity 0.45s ease; pointer-events: none; }

.suite.b-r0  .fillrect { fill: var(--c-crit); }
.suite.b-r1  .fillrect { fill: var(--c-mid); }
.suite.b-r2  .fillrect { fill: var(--c-far); }
.suite.b-vac .fillrect { fill: var(--c-vac); }
.suite.b-vac .hatchrect { opacity: 1; }

.suite .lab { font-size: 10.5px; font-weight: 600; }
.suite .lab2 { font-size: 9.5px; font-weight: 500; opacity: 0.85; }
.suite.b-r0 .lab, .suite.b-r0 .lab2 { fill: var(--on-crit); }
.suite.b-r1 .lab, .suite.b-r1 .lab2 { fill: var(--on-mid); }
.suite.b-r2 .lab, .suite.b-r2 .lab2 { fill: var(--on-far); }
.suite.b-vac .lab, .suite.b-vac .lab2 { fill: var(--muted); }

.suite { transition: opacity 0.15s ease; }
.suite.dim { opacity: 0.35; }
.suite.hot .fillrect { filter: brightness(1.08); }

.suite .hit {
  fill: transparent;
  cursor: pointer;
  outline: none;
}

.suite .hit:focus-visible {
  stroke: var(--accent);
  stroke-width: 2.5;
}

.drop-hint {
  margin: 12px 0 0;
  font-size: 11.5px;
  color: var(--muted);
  text-align: center;
}

.drop-hint code {
  font-family: ui-monospace, SFMono-Regular, Menlo, monospace;
  font-size: 10.5px;
  background: color-mix(in srgb, var(--ink) 6%, transparent);
  border-radius: 4px;
  padding: 1px 5px;
}

body.dragging::after {
  content: "Drop CSV to load";
  position: fixed;
  inset: 0;
  z-index: 100;
  display: grid;
  place-items: center;
  font-size: 20px;
  font-weight: 650;
  color: var(--accent);
  background: color-mix(in srgb, var(--page) 72%, transparent);
  border: 3px dashed var(--accent);
  pointer-events: none;
}

/* ---------- 3D hologram stage ---------- */
/* The stage commits to one visual world — a dark ops screen — in both themes.
   Bucket colors are pinned to the dark-surface-validated steps. */

.stage3d {
  --c-crit: #d03b3b;
  --c-mid:  #c98500;
  --c-far:  #3987e5;
  --v3-vac:  #6b7787;
  --v3-line: #3987e5;
  --v3-ink:  #7fb3ff;
  --v3-dim:  #46648b;
  position: relative;
  border-radius: 12px;
  overflow: hidden;
  background:
    radial-gradient(120% 85% at 50% 38%, #0a1424 0%, #060b16 52%, #030509 100%);
  touch-action: none;
}

.stage3d svg { display: block; width: 100%; height: auto; cursor: grab; user-select: none; }
.stage3d svg:active { cursor: grabbing; }

.grid3 polyline {
  fill: none;
  stroke: var(--v3-line);
  stroke-width: 1;
}

.s3 polygon {
  stroke-linejoin: round;
  stroke-width: 1.1;
  transition: fill-opacity 0.45s ease, stroke-opacity 0.45s ease;
}

.s3.b-r0  polygon { fill: var(--c-crit); stroke: var(--c-crit); }
.s3.b-r1  polygon { fill: var(--c-mid);  stroke: var(--c-mid); }
.s3.b-r2  polygon { fill: var(--c-far);  stroke: var(--c-far); }
.s3.b-vac polygon { fill: var(--v3-vac); stroke: var(--v3-vac); }

.s3 .f-top { fill-opacity: 0.30; stroke-opacity: 0.9; }
.s3 .f-z   { fill-opacity: 0.14; stroke-opacity: 0.55; }
.s3 .f-x   { fill-opacity: 0.09; stroke-opacity: 0.45; }

.s3.b-vac .f-top { fill-opacity: 0.05; stroke-opacity: 0.35; }
.s3.b-vac .f-z   { fill-opacity: 0.02; stroke-opacity: 0.22; }
.s3.b-vac .f-x   { fill-opacity: 0.02; stroke-opacity: 0.18; }

.s3 { transition: opacity 0.2s ease; cursor: pointer; }
.s3.dim { opacity: 0.13 !important; }
.s3.hot .f-top { fill-opacity: 0.55; stroke-opacity: 1; }
.s3.hot .f-z   { fill-opacity: 0.3;  stroke-opacity: 0.9; }
.s3.hot .f-x   { fill-opacity: 0.22; stroke-opacity: 0.8; }

.scan3 { fill: var(--v3-line); pointer-events: none; }

.bloom3 { pointer-events: none; }

.hud3 text {
  fill: var(--v3-ink);
  font: 600 11px ui-monospace, SFMono-Regular, Menlo, monospace;
  letter-spacing: 0.08em;
  user-select: none;
  pointer-events: none;
}

.hud3 .dim3 { fill: var(--v3-dim); font-weight: 500; font-size: 10px; }

.hud3 .br3 {
  fill: none;
  stroke: var(--v3-dim);
  stroke-width: 1.5;
  opacity: 0.7;
}

/* ---------- rent roll table ---------- */

.table-wrap {
  overflow: auto;
  max-height: 640px;
  border: 1px solid var(--grid);
  border-radius: 8px;
}

table {
  border-collapse: collapse;
  width: 100%;
  font-size: 12.5px;
  min-width: 640px;
}

thead th {
  position: sticky;
  top: 0;
  background: var(--surface);
  text-align: left;
  font-size: 10.5px;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--muted);
  font-weight: 600;
  padding: 8px 10px;
  border-bottom: 1px solid var(--axis);
  white-space: nowrap;
}

tbody td {
  padding: 6px 10px;
  border-bottom: 1px solid var(--grid);
  white-space: nowrap;
}

tbody tr:last-child td { border-bottom: none; }

td.num, th.num { text-align: right; font-variant-numeric: tabular-nums; }

td .dot {
  display: inline-block;
  width: 9px;
  height: 9px;
  border-radius: 50%;
  margin-right: 7px;
  vertical-align: 0;
}

.dot.b-r0 { background: var(--c-crit); }
.dot.b-r1 { background: var(--c-mid); }
.dot.b-r2 { background: var(--c-far); }
.dot.b-vac {
  background: repeating-linear-gradient(
    45deg,
    var(--c-vac) 0 2px,
    var(--hatch) 2px 3px
  );
}

td.vacant-cell { color: var(--muted); }

/* ---------- side panels ---------- */

.side { display: grid; gap: 14px; min-width: 0; }

.kpis {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 14px;
}

.tile {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 12px 14px;
  min-width: 0;
}

.tile-label { font-size: 11.5px; color: var(--ink-2); margin-bottom: 2px; }

.tile-value {
  font-size: 22px;
  font-weight: 650;
  letter-spacing: -0.01em;
  line-height: 1.2;
  white-space: nowrap;
}

.tile-sub {
  font-size: 11px;
  color: var(--muted);
  margin-top: 2px;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.meter {
  margin-top: 8px;
  height: 6px;
  border-radius: 3px;
  background: var(--accent-soft);
  overflow: hidden;
}

.meter-fill {
  height: 100%;
  border-radius: 3px;
  background: var(--accent);
  transition: width 0.45s ease;
}

/* ---------- rollover mini chart ---------- */

.rr-row {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 3px 0;
}

.rr-year {
  flex: none;
  width: 40px;
  font-size: 11px;
  color: var(--ink-2);
  font-variant-numeric: tabular-nums;
}

.rr-track {
  flex: 1;
  display: flex;
  gap: 2px;
  align-items: center;
  min-width: 0;
}

.rr-seg { height: 15px; }
.rr-seg:last-child { border-radius: 0 4px 4px 0; }
.rr-seg.b-r0 { background: var(--c-crit); }
.rr-seg.b-r1 { background: var(--c-mid); }
.rr-seg.b-r2 { background: var(--c-far); }

.rr-val {
  flex: none;
  font-size: 10.5px;
  color: var(--ink-2);
  font-variant-numeric: tabular-nums;
}

.rr-empty { font-size: 12px; color: var(--muted); padding: 6px 0; }

/* ---------- tooltip ---------- */

.tooltip {
  position: fixed;
  z-index: 50;
  max-width: 280px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 10px;
  box-shadow: var(--shadow);
  padding: 10px 12px;
  pointer-events: none;
  font-size: 12px;
}

.tt-name { font-size: 13px; font-weight: 650; margin-bottom: 1px; }

.tt-where { color: var(--muted); font-size: 11px; margin-bottom: 7px; }

.tt-row { display: flex; justify-content: space-between; gap: 16px; padding: 1.5px 0; }
.tt-row .k { color: var(--ink-2); }
.tt-row .v { font-weight: 600; font-variant-numeric: tabular-nums; text-align: right; }

.tt-status {
  display: flex;
  align-items: center;
  gap: 6px;
  margin-top: 7px;
  padding-top: 7px;
  border-top: 1px solid var(--grid);
  font-weight: 600;
}

.tt-status .dot { width: 9px; height: 9px; border-radius: 50%; flex: none; }

/* ---------- toast ---------- */

.toast {
  position: fixed;
  bottom: 18px;
  left: 50%;
  transform: translateX(-50%);
  z-index: 60;
  background: var(--ink);
  color: var(--page);
  border-radius: 10px;
  padding: 10px 16px;
  font-size: 13px;
  box-shadow: var(--shadow);
  max-width: min(520px, calc(100vw - 32px));
}

/* ---------- footer ---------- */

footer {
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 16px 28px;
  font-size: 11.5px;
  color: var(--muted);
}

footer a { color: var(--ink-2); }

/* ---------- responsive ---------- */

@media (max-width: 880px) {
  .layout { grid-template-columns: 1fr; }
  .side { order: 2; }
  .kpis { grid-template-columns: 1fr 1fr; }
  .brand h1 { font-size: 14px; }
  .timebar { flex-wrap: wrap; gap: 8px 12px; }
  .timebar input[type="range"] { flex-basis: 100%; order: 3; }
}

@media (max-width: 640px) {
  .topbar { flex-wrap: wrap; }
  .brand { flex: 1 1 100%; }
  .actions { flex-wrap: wrap; }
}

@media (pointer: coarse) {
  .tooltip {
    left: 8px !important;
    right: 8px;
    bottom: 8px;
    top: auto !important;
    max-width: none;
  }
}

@media (prefers-reduced-motion: reduce) {
  .suite .fillrect, .suite .hatchrect, .meter-fill, .suite { transition: none; }
}