[hidden] { display: none !important; }
:root {
  --bg: #0b0e13;
  --panel: #121821;
  --panel-2: #0e131a;
  --line: #233042;
  --text: #dde6ef;
  --dim: #93a4b8;
  --faint: #627287;
  --accent: #5b9bff;
  --accent-soft: rgba(91, 155, 255, 0.14);
  --amber: #f2b544;
  --green: #4fd18a;
  --red: #ff6b6b;
  --marker: #ffd23f;
  --r: 8px;
  --font: system-ui, -apple-system, 'Segoe UI', Roboto, Arial, sans-serif;
  --mono: ui-monospace, 'SFMono-Regular', Consolas, monospace;
}
* { box-sizing: border-box; }
html, body { margin: 0; background: var(--bg); color: var(--text); font: 15px/1.5 var(--font); }
a { color: var(--accent); }
h1 { font-size: 1.35rem; margin: 0; letter-spacing: 0.01em; }
h2 { font-size: 1.02rem; margin: 0 0 0.8rem; display: flex; align-items: center; gap: 0.55rem; }
h2 .n { display: inline-grid; place-items: center; width: 1.5rem; height: 1.5rem; border-radius: 50%; background: var(--accent-soft); color: var(--accent); font-size: 0.85rem; }
.top { display: flex; flex-wrap: wrap; gap: 1rem 2rem; justify-content: space-between; align-items: center; padding: 1rem 1.25rem; border-bottom: 1px solid var(--line); background: var(--panel-2); }
.brand { display: flex; gap: 0.8rem; align-items: center; }
.logo { width: 34px; height: 34px; color: var(--accent); flex: none; }
.sub { margin: 0.1rem 0 0; color: var(--dim); font-size: 0.9rem; }
.tag { font-size: 0.7rem; vertical-align: middle; border: 1px solid var(--accent); color: var(--accent); border-radius: 999px; padding: 0.05rem 0.45rem; margin-left: 0.3rem; }
.privacy { max-width: 34rem; font-size: 0.85rem; color: var(--dim); border-left: 3px solid var(--green); padding-left: 0.75rem; }
.privacy strong { color: var(--green); }
main { padding: 1rem; display: grid; gap: 1rem; grid-template-columns: minmax(0, 1fr); max-width: 1800px; margin: 0 auto; }
.card { background: var(--panel); border: 1px solid var(--line); border-radius: var(--r); padding: 1rem 1.1rem; min-width: 0; }
.drop { border: 1.5px dashed var(--line); border-radius: var(--r); padding: 1.1rem; text-align: center; color: var(--dim); transition: border-color 0.15s, background 0.15s; }
.drop.over { border-color: var(--accent); background: var(--accent-soft); }
.drop p { margin: 0 0 0.75rem; }
.row { display: flex; gap: 0.6rem; align-items: center; flex-wrap: wrap; justify-content: center; }
#series-box .row { justify-content: flex-start; margin-top: 0.8rem; }
.btn { display: inline-flex; align-items: center; gap: 0.4rem; border: 1px solid var(--accent); background: var(--accent-soft); color: var(--text); border-radius: var(--r); padding: 0.45rem 0.95rem; font: inherit; font-size: 0.92rem; cursor: pointer; }
.btn.primary { background: var(--accent); color: #fff; font-weight: 600; }
.btn.ghost { background: transparent; border-color: var(--line); }
.btn.small { padding: 0.25rem 0.6rem; font-size: 0.82rem; }
.btn:disabled { opacity: 0.45; cursor: default; }
.btn:focus-visible, select:focus-visible, input:focus-visible, canvas:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; }
.status { margin-top: 0.7rem; color: var(--dim); font-size: 0.88rem; min-height: 1.3em; }
.status.err { color: var(--red); }
.status.ok { color: var(--green); }
.grid2 { display: grid; grid-template-columns: repeat(auto-fit, minmax(16rem, 1fr)); gap: 0.8rem; margin-top: 1rem; }
.field { display: flex; flex-direction: column; gap: 0.25rem; font-size: 0.85rem; color: var(--dim); }
select, input[type=number] { background: var(--bg); color: var(--text); border: 1px solid var(--line); border-radius: var(--r); padding: 0.4rem 0.5rem; font: inherit; font-size: 0.9rem; min-width: 0; }
input[type=number] { width: 4.5rem; }
.hint { color: var(--faint); font-size: 0.83rem; margin: 0.5rem 0 0; }
.opts { margin-top: 0.6rem; color: var(--dim); font-size: 0.88rem; }
.opts summary { cursor: pointer; }
.opts .inline { display: flex; gap: 0.4rem; align-items: center; margin: 0.45rem 0; }
.inline { display: inline-flex; gap: 0.4rem; align-items: center; }
.bar { height: 6px; background: var(--line); border-radius: 3px; overflow: hidden; margin-top: 0.8rem; }
.bar i { display: block; height: 100%; width: 0; background: var(--accent); transition: width 0.25s; }
.toolbar { display: flex; flex-wrap: wrap; gap: 0.6rem 0.9rem; align-items: center; margin-bottom: 0.7rem; }
.seg { display: inline-flex; border: 1px solid var(--line); border-radius: var(--r); overflow: hidden; }
.seg button { background: transparent; color: var(--dim); border: 0; padding: 0.3rem 0.75rem; font: inherit; font-size: 0.85rem; cursor: pointer; }
.seg button[aria-pressed=true] { background: var(--accent-soft); color: var(--text); }
.seg.small button { padding: 0.2rem 0.6rem; font-size: 0.8rem; }
.depth input { width: 12rem; accent-color: var(--accent); }
.depth output { font-family: var(--mono); color: var(--marker); min-width: 3.5rem; }
.viewer { display: grid; gap: 0.75rem; grid-template-columns: minmax(0, 3fr) minmax(0, 2fr); }
.pane { background: #000; border: 1px solid var(--line); border-radius: var(--r); overflow: hidden; position: relative; min-width: 0; }
.mosaic-pane { height: min(78vh, 900px); }
.mosaic-pane canvas { width: 100%; height: 100%; display: block; cursor: crosshair; touch-action: none; }
.native-pane { height: min(78vh, 900px); display: flex; flex-direction: column; }
.native-pane .seg { position: absolute; top: 0.4rem; right: 0.4rem; z-index: 2; background: rgba(0, 0, 0, 0.6); }
.native-pane canvas { flex: 1; width: 100%; min-height: 0; display: block; }
.info { font-family: var(--mono); font-size: 0.82rem; background: var(--panel-2); border: 1px solid var(--line); border-radius: var(--r); padding: 0.4rem 0.6rem; margin-top: 0.6rem; min-height: 2.1em; color: var(--marker); }
table { border-collapse: collapse; width: 100%; font-size: 0.88rem; }
td { border-bottom: 1px solid var(--line); padding: 0.35rem 0.5rem; vertical-align: top; }
td:first-child { color: var(--dim); width: 34%; }
td .note { color: var(--faint); font-size: 0.8rem; }
.warn { color: var(--amber); font-size: 0.86rem; margin-top: 0.5rem; }
.about ol { margin: 0; padding-left: 1.2rem; color: var(--dim); }
.clusters th { text-align: left; color: var(--dim); font-weight: 600; font-size: 0.8rem; border-bottom: 1px solid var(--line); padding: 0.3rem 0.5rem; }
.clusters td:first-child { width: 2rem; color: var(--marker); font-family: var(--mono); }
.clusters details summary { cursor: pointer; color: var(--faint); font-size: 0.8rem; }
.clusters table.prof td { font-size: 0.8rem; padding: 0.2rem 0.4rem; }
.clusters table.prof td:first-child { width: 40%; color: var(--dim); font-family: var(--font); }
.feat { justify-content: flex-start; margin-top: 0.8rem; }
.feat .row { justify-content: flex-start; }
.about li { margin: 0.2rem 0; }
/* two columns: input + QC on the left; view, morphometry and "how it works" on the right */
.col-l, .col-r { display: flex; flex-direction: column; gap: 1rem; min-width: 0; }
@media (min-width: 1100px) {
  main { grid-template-columns: minmax(0, 26rem) minmax(0, 1fr); align-items: start; }
}
@media (max-width: 1099px) {
  /* one column, in reading order: exam, planification, morphometry, QC, how it works */
  .col-l, .col-r { display: contents; }
  #step-input { order: 1; } #step-view { order: 2; } #step-morph { order: 3; } #step-qc { order: 4; } .about { order: 5; }
}
@media (max-width: 800px) {
  .viewer { grid-template-columns: minmax(0, 1fr); }
  .mosaic-pane, .native-pane { height: 60vh; }
  .depth input { width: 8rem; }
}


.diag { white-space: pre-wrap; max-height: 18rem; overflow: auto; font: 0.75rem/1.4 ui-monospace, SFMono-Regular, Menlo, Consolas, monospace; background: var(--bg, #0a0d12); border: 1px solid var(--line); border-radius: var(--r); padding: 0.5rem 0.6rem; margin: 0.5rem 0; color: var(--dim); }
#hw-warn-box { margin-top: 0.4rem; }
#hw-warn-box .btn { margin-top: 0.4rem; }
.row.left { justify-content: flex-start; }