:root {
  color-scheme: light;
  --paper: #f5f4ef;
  --white: #fffefa;
  --ink: #171b19;
  --muted: #5e6560;
  --rule: #c8cbc3;
  --rule-strong: #737b74;
  --accent: #c6472c;
  --accent-soft: #f2e4dc;
  --green: #355d40;
  --focus: #145a68;
  font-family: "Segoe UI", Arial, sans-serif;
}

* { box-sizing: border-box; }
body { margin: 0; background: var(--paper); color: var(--ink); font-size: 14px; }
button, input, select { font: inherit; }
button, select, a { touch-action: manipulation; }
button { cursor: pointer; }
button:disabled { opacity: .5; cursor: not-allowed; }
a { color: inherit; }
button:focus-visible, a:focus-visible, select:focus-visible, input:focus-visible, summary:focus-visible { outline: 3px solid var(--focus); outline-offset: 3px; }
[hidden] { display: none !important; }

.site-header { min-height: 54px; display: flex; align-items: center; justify-content: space-between; padding: 0 max(26px, calc((100vw - 1240px) / 2)); border-bottom: 1px solid var(--ink); background: var(--white); }
.brand { display: flex; align-items: center; gap: 10px; text-decoration: none; font-size: 15px; font-weight: 750; letter-spacing: -.3px; }
.brand-icon { display: grid; place-items: center; width: 25px; height: 25px; background: var(--ink); color: var(--white); font: 700 11px Consolas, monospace; }
.brand-caption { margin-left: 8px; padding-left: 16px; border-left: 1px solid var(--rule); color: var(--muted); font: 9px Consolas, monospace; letter-spacing: .8px; }
.pill { display: inline-flex; align-items: center; gap: 7px; color: var(--muted); font: 10px Consolas, monospace; }
.pill::before { content: ""; width: 7px; height: 7px; background: #9b6c39; }
.pill.is-ready::before { background: #4b8b55; }
.pill.muted { padding: 6px 0 6px 12px; border-left: 2px solid var(--accent); color: var(--ink); white-space: nowrap; }

.page-shell { width: min(1240px, calc(100% - 52px)); margin: 0 auto; padding: 31px 0 62px; }
.eyebrow, .tiny-label, .card-top, .step { font-family: Consolas, "Courier New", monospace; }
.eyebrow { margin-bottom: 10px; color: var(--accent); font-size: 9px; font-weight: 700; letter-spacing: 1.1px; }
.intro { display: grid; grid-template-columns: minmax(0, 1fr) 270px; align-items: end; gap: 34px; padding: 0 0 25px; border-bottom: 1px solid var(--rule-strong); }
h1 { margin: 0 0 12px; font-size: clamp(34px, 5.3vw, 62px); font-weight: 650; letter-spacing: -2.7px; line-height: .99; }
h1 span { color: #747c75; }
.intro p { max-width: 650px; margin: 0; color: var(--muted); font-size: 14px; line-height: 1.55; }
.study-card { display: grid; grid-template-columns: 1fr; gap: 5px; padding: 3px 0 2px 17px; border-left: 2px solid var(--accent); }
.tiny-label { color: var(--muted); font-size: 8px; font-weight: 700; letter-spacing: .8px; }
.study-card strong { font-size: 15px; }
.study-card > span:not(.tiny-label) { color: var(--muted); font-size: 11px; }
.study-rule { height: 1px; margin: 5px 0; background: var(--rule); }

.notice { margin: 15px 0 0; padding: 9px 11px; border-left: 3px solid #a5753b; background: #efe8d8; color: #443c2f; font-size: 11px; line-height: 1.45; }
.notice.ready { border-left-color: var(--green); background: #e7ece4; color: #283c2b; }
.tabs { display: flex; gap: clamp(15px, 3vw, 38px); margin: 18px 0 21px; border-bottom: 1px solid var(--rule-strong); overflow-x: auto; }
.tab { flex: 0 0 auto; padding: 10px 0 11px; border: 0; border-bottom: 2px solid transparent; background: transparent; color: var(--muted); font-size: 11px; }
.tab.active { border-bottom-color: var(--accent); color: var(--ink); font-weight: 700; }
.panel { min-width: 0; }
.section-top { display: flex; align-items: end; justify-content: space-between; gap: 18px; margin-bottom: 13px; }
.section-top h2, .panel > h2 { margin: 0 0 5px; font-size: 21px; letter-spacing: -.5px; font-weight: 650; }
.section-top p { margin: 0; color: var(--muted); font-size: 11px; line-height: 1.5; }

.image-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 15px; }
.image-card { min-width: 0; }
.card-top { display: flex; align-items: center; justify-content: space-between; min-height: 36px; padding: 0 1px; border-top: 1px solid var(--rule-strong); color: var(--muted); font-size: 9px; font-weight: 700; letter-spacing: .55px; }
.upload, .output-area { position: relative; display: flex; width: 100%; height: clamp(275px, 34vw, 440px); align-items: center; justify-content: center; overflow: hidden; background: #202522; }
.upload { cursor: pointer; }
.upload:hover { background: #2a312d; }
.upload input { position: absolute; z-index: 2; inset: 0; width: 100%; height: 100%; opacity: 0; cursor: pointer; }
.image-card img { display: block; max-width: 100%; max-height: 100%; object-fit: contain; }
.output-area { background: #202522; }
.output-area img { width: 100%; height: 100%; object-fit: contain; }
#upload-prompt, #output-placeholder { display: flex; max-width: 330px; flex-direction: column; align-items: center; gap: 8px; padding: 20px; color: #c4cbc5; text-align: center; font-size: 10px; }
#upload-prompt strong, #output-placeholder strong { color: var(--white); font-size: 13px; font-weight: 600; }
.upload-icon, .grid-icon { display: grid; place-items: center; width: 34px; height: 34px; margin-bottom: 4px; border: 1px solid #778078; color: #f1a088; font: 20px Consolas, monospace; }
.grid-icon { color: #bdc5bd; }
.output-mode { display: flex; align-items: center; gap: 7px; color: var(--muted); font-size: 10px; font-weight: 400; letter-spacing: 0; }
.output-mode select, .history-mode { padding: 5px 23px 5px 7px; border: 1px solid var(--rule); border-radius: 0; background: var(--white); color: var(--ink); font-size: 10px; }
.actions { display: flex; align-items: center; flex-wrap: wrap; gap: 10px; margin: 13px 0 22px; }
.primary, .secondary { min-height: 36px; padding: 0 13px; border: 1px solid var(--ink); border-radius: 0; background: var(--ink); color: white; font-size: 11px; font-weight: 650; }
.primary:hover:not(:disabled) { background: var(--accent); border-color: var(--accent); }
.secondary { background: transparent; color: var(--ink); }
.secondary:hover:not(:disabled) { background: #e8e6dd; }
#test-new-image { border-color: var(--accent); color: var(--accent); }
#test-new-image:hover { background: var(--accent-soft); }
#inference-status { margin-left: 4px; color: var(--muted); font: 10px Consolas, monospace; overflow-wrap: anywhere; }

.class-results { margin: 0 0 16px; padding: 12px 0 14px; border-top: 1px solid var(--rule-strong); border-bottom: 1px solid var(--rule); }
.class-results-heading { display: flex; align-items: center; justify-content: space-between; gap: 12px; margin-bottom: 9px; }
.class-results-heading h3 { margin: 0 0 3px; font-size: 13px; font-weight: 650; }
.class-results-heading p { margin: 0; color: var(--muted); font-size: 10px; }
.count-badge { color: var(--accent); font: 10px Consolas, monospace; }
.active-classes { display: flex; flex-wrap: wrap; gap: 6px 14px; }
.active-class { display: inline-flex; align-items: center; gap: 6px; color: var(--ink); font-size: 10px; text-transform: capitalize; }
.color-swatch { display: inline-block; flex: 0 0 auto; width: 11px; height: 11px; border: 1px solid rgb(0 0 0 / 22%); }
.no-classes { margin: 0; color: var(--muted); font-size: 10px; }
.class-key { border-top: 1px solid var(--rule-strong); border-bottom: 1px solid var(--rule-strong); }
.class-key summary { display: flex; align-items: center; justify-content: space-between; gap: 15px; padding: 11px 1px; cursor: pointer; list-style: none; }
.class-key summary::-webkit-details-marker { display: none; }
.class-key summary strong, .class-key summary small { display: block; }
.class-key summary strong { font-size: 11px; }
.class-key summary small { margin-top: 3px; color: var(--muted); font-size: 9px; }
.summary-arrow { color: var(--accent); font: 16px Consolas, monospace; }
.class-key[open] .summary-arrow { transform: rotate(45deg); }
.legend { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 0 22px; padding: 0 0 14px; }
.legend-group { min-width: 0; padding: 10px 0; border-top: 1px solid var(--rule); }
.legend-group h4 { margin: 0 0 7px; color: var(--muted); font: 700 8px Consolas, monospace; text-transform: uppercase; letter-spacing: .5px; }
.legend-list { display: grid; gap: 7px; margin: 0; padding: 0; list-style: none; }
.legend-list li { min-width: 0; }
.legend-name { display: flex; align-items: center; gap: 6px; font-size: 10px; text-transform: capitalize; }
.legend-list small { display: block; padding: 2px 0 0 17px; color: var(--muted); font-size: 9px; line-height: 1.35; }
.footnote { margin: 11px 0 0; color: var(--muted); font-size: 9px; line-height: 1.55; }

.history-heading { align-items: end; }
.history-tools { display: flex; align-items: center; gap: 12px; }
.history-status { color: var(--muted); font: 10px Consolas, monospace; }
.history-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 20px 15px; }
.history-item { min-width: 0; border-top: 1px solid var(--rule-strong); }
.history-item-header { display: flex; align-items: center; justify-content: space-between; gap: 12px; padding: 9px 0; }
.history-item-header h3 { max-width: 400px; margin: 0 0 3px; overflow-wrap: anywhere; font-size: 12px; font-weight: 650; }
.history-item-header time { color: var(--muted); font: 9px Consolas, monospace; }
.history-remove { flex: 0 0 auto; padding: 5px 7px; border: 1px solid var(--rule); background: transparent; color: var(--muted); font-size: 9px; }
.history-remove:hover { border-color: var(--accent); color: var(--accent); }
.history-images { display: grid; grid-template-columns: 1fr 1fr; gap: 2px; background: var(--paper); }
.history-images figure { min-width: 0; margin: 0; }
.history-images figcaption { display: flex; min-height: 29px; align-items: center; justify-content: space-between; gap: 5px; padding: 4px 0; color: var(--muted); font: 9px Consolas, monospace; }
.history-images img { display: block; width: 100%; height: 190px; object-fit: contain; background: #202522; }
.history-mode { max-width: 105px; padding: 3px 5px; font-size: 9px; }
.history-labels { display: flex; flex-wrap: wrap; align-items: center; gap: 5px 10px; padding: 9px 0 4px; }
.history-label-title { margin-right: 3px; color: var(--muted); font: 8px Consolas, monospace; text-transform: uppercase; }
.history-labels .active-class { font-size: 9px; }
.history-labels .color-swatch { width: 9px; height: 9px; }
.history-meta { margin: 0; padding: 7px 0 10px; color: var(--muted); font: 9px Consolas, monospace; }
.empty { margin: 17px 0; padding: 24px 0; border-top: 1px solid var(--rule); border-bottom: 1px solid var(--rule); color: var(--muted); font-size: 11px; }

.table-wrap { overflow-x: auto; border-top: 1px solid var(--rule-strong); border-bottom: 1px solid var(--rule-strong); }
table { width: 100%; border-collapse: collapse; text-align: left; font-size: 10px; white-space: nowrap; }
th { padding: 10px 11px; border-bottom: 1px solid var(--rule-strong); color: var(--muted); font: 700 8px Consolas, monospace; text-transform: uppercase; letter-spacing: .4px; }
td { padding: 11px; border-bottom: 1px solid var(--rule); }
tbody tr:last-child td { border-bottom: 0; }
tbody tr:hover { background: #eeece5; }
.run-link { padding: 0; border: 0; background: none; color: var(--accent); text-align: left; font-weight: 700; }
.run-link small { display: block; margin-top: 3px; color: var(--muted); font: 8px Consolas, monospace; }
details:not(.class-key) { margin-top: 13px; }
details:not(.class-key) summary { cursor: pointer; color: var(--muted); font-size: 10px; }
pre { overflow: auto; padding: 12px; border-left: 2px solid var(--rule-strong); background: #ecebe5; font: 9px/1.5 Consolas, monospace; white-space: pre-wrap; overflow-wrap: anywhere; }
.method-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 0; margin: 15px 0 21px; border-top: 1px solid var(--rule-strong); border-bottom: 1px solid var(--rule-strong); }
.method-grid article { padding: 14px 17px 16px 0; }
.method-grid article + article { padding-left: 17px; border-left: 1px solid var(--rule); }
.step { color: var(--accent); font-size: 10px; }
.method-grid h3, .checkpoint-heading { margin: 8px 0 5px; font-size: 13px; font-weight: 650; }
.method-grid p { margin: 0; color: var(--muted); font-size: 10px; line-height: 1.55; }
.checkpoint-heading { margin-top: 0; }
#model-info { max-height: 190px; margin: 8px 0 0; }
footer { display: flex; justify-content: space-between; gap: 15px; padding: 13px max(26px, calc((100vw - 1240px) / 2)); border-top: 1px solid var(--rule-strong); background: var(--white); color: var(--muted); font: 9px Consolas, monospace; }

@media (max-width: 760px) {
  .site-header { padding: 0 16px; }
  .page-shell { width: calc(100% - 32px); padding: 25px 0 40px; }
  .intro { grid-template-columns: 1fr; gap: 18px; }
  .study-card { max-width: 360px; }
  .section-top { align-items: flex-start; flex-direction: column; }
  .history-tools { width: 100%; justify-content: space-between; }
  .image-grid { grid-template-columns: 1fr; gap: 12px; }
  .upload, .output-area { height: min(68vw, 370px); min-height: 225px; }
  .history-grid { grid-template-columns: 1fr; }
  .legend { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .method-grid { grid-template-columns: 1fr; }
  .method-grid article { padding: 12px 0; }
  .method-grid article + article { padding-left: 0; border-top: 1px solid var(--rule); border-left: 0; }
  footer { padding: 12px 16px; flex-direction: column; gap: 5px; }
}
@media (max-width: 430px) {
  .brand-caption { margin-left: 2px; padding-left: 9px; font-size: 7px; }
  .page-shell { width: calc(100% - 26px); }
  .tabs { gap: 17px; }
  .pill.muted { font-size: 8px; }
  .card-top { font-size: 8px; }
  .actions { align-items: flex-start; }
  #inference-status { flex-basis: 100%; margin: 3px 0 0; }
  .legend { grid-template-columns: 1fr; }
  .history-images img { height: 145px; }
}