:root {
  --ink: #e8edf1;
  --muted: #8b98a5;
  --dim: #55616d;
  --line: rgba(221, 233, 241, 0.13);
  --panel: #131b25;
  --panel-soft: #17222e;
  --canvas: #0d151f;
  --accent: #d8f36b;
  --accent-soft: rgba(216, 243, 107, 0.13);
  --orange: #ff9f43;
  --danger: #ff8d8d;
  --shadow: 0 28px 80px rgba(0, 0, 0, 0.25);
  color-scheme: dark;
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  background: #0b111a;
  color: var(--ink);
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  min-width: 320px;
  margin: 0;
  background:
    radial-gradient(circle at 82% 4%, rgba(110, 147, 86, 0.13), transparent 31rem),
    linear-gradient(180deg, #0b111a 0%, #0d151f 72%, #0b111a 100%);
}

button, input, select { font: inherit; }
button { color: inherit; }

.grain {
  position: fixed;
  inset: 0;
  pointer-events: none;
  opacity: 0.055;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 180 180' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='.85' numOctaves='3' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)' opacity='.45'/%3E%3C/svg%3E");
  z-index: 10;
}

.topbar, .page-shell, .footer { position: relative; z-index: 1; }

.topbar {
  width: min(1320px, calc(100% - 64px));
  margin: 0 auto;
  padding: 26px 0 24px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  border-bottom: 1px solid var(--line);
}

.brand { display: inline-flex; align-items: center; gap: 13px; color: var(--ink); text-decoration: none; }
.brand strong { display: block; font-size: 14px; letter-spacing: 0.04em; }
.brand small { display: block; margin-top: 3px; color: var(--muted); font-size: 10px; letter-spacing: 0.12em; text-transform: uppercase; }
.brand-mark { display: flex; gap: 3px; align-items: end; width: 25px; height: 25px; padding: 3px; border: 1px solid rgba(216, 243, 107, 0.5); border-radius: 7px; background: var(--accent-soft); transform: rotate(-8deg); }
.brand-mark span { display: block; width: 4px; border-radius: 2px; background: var(--accent); }
.brand-mark span:nth-child(1) { height: 8px; opacity: .55; }
.brand-mark span:nth-child(2) { height: 14px; }
.brand-mark span:nth-child(3) { height: 18px; opacity: .7; }
.topbar-note { color: var(--muted); font-size: 11px; letter-spacing: 0.07em; text-transform: uppercase; }
.status-dot { display: inline-block; width: 6px; height: 6px; margin-right: 6px; border-radius: 50%; background: var(--accent); box-shadow: 0 0 12px var(--accent); }

.page-shell { width: min(1320px, calc(100% - 64px)); margin: 0 auto; }
.hero { min-height: 390px; display: grid; grid-template-columns: minmax(0, 1.1fr) minmax(260px, .55fr); gap: 70px; align-items: end; padding: 82px 0 72px; }
.eyebrow { margin: 0 0 17px; color: var(--accent); font: 10px/1.2 ui-monospace, SFMono-Regular, Menlo, monospace; letter-spacing: .18em; }
.eyebrow span { margin-left: 8px; color: var(--dim); }
h1, h2, h3, p { margin-top: 0; }
h1 { max-width: 680px; margin-bottom: 0; font-size: clamp(4rem, 8.7vw, 8.2rem); font-weight: 600; line-height: .83; letter-spacing: -.085em; }
h1 em { color: var(--accent); font-style: normal; }
.hero-copy { max-width: 360px; padding-bottom: 7px; }
.hero-copy p { color: #bbc5ce; font-size: 15px; line-height: 1.8; }
.hero-rule { width: 100%; height: 1px; margin: 31px 0 16px; background: linear-gradient(90deg, var(--accent), transparent); }
.hero-copy .microcopy { margin: 0; color: var(--dim); font: 10px/1.5 ui-monospace, SFMono-Regular, Menlo, monospace; letter-spacing: .06em; text-transform: uppercase; }

.upload-panel { display: grid; grid-template-columns: minmax(260px, .75fr) minmax(300px, 1.25fr) 220px; gap: 32px; align-items: center; padding: 30px; border: 1px solid var(--line); border-radius: 17px; background: linear-gradient(112deg, rgba(24, 35, 46, .96), rgba(15, 24, 34, .96)); box-shadow: var(--shadow); }
.section-kicker { display: inline-flex; align-items: center; gap: 8px; color: var(--muted); font: 10px/1.2 ui-monospace, SFMono-Regular, Menlo, monospace; letter-spacing: .13em; }
.kicker-number { display: inline-grid; place-items: center; width: 18px; height: 18px; border: 1px solid var(--dim); border-radius: 5px; color: var(--accent); font-size: 9px; }
.upload-copy h2 { margin: 13px 0 10px; font-size: 28px; letter-spacing: -.04em; }
.upload-copy p { max-width: 380px; margin-bottom: 0; color: var(--muted); font-size: 13px; line-height: 1.65; }
code { padding: 2px 5px; border-radius: 4px; background: rgba(255,255,255,.08); color: #dce4e9; font: 11px ui-monospace, SFMono-Regular, Menlo, monospace; }
.dropzone { min-height: 130px; display: grid; grid-template-columns: 42px 1fr; grid-template-rows: 1fr 1fr; column-gap: 15px; align-items: center; padding: 21px 23px; border: 1px dashed rgba(216, 243, 107, .44); border-radius: 12px; background: rgba(216, 243, 107, .055); cursor: pointer; transition: border-color .2s, background .2s, transform .2s; }
.dropzone:hover, .dropzone.is-dragging { border-color: var(--accent); background: rgba(216, 243, 107, .12); transform: translateY(-2px); }
.dropzone.is-busy { pointer-events: none; opacity: .65; }
.dropzone input { position: absolute; width: 1px; height: 1px; opacity: 0; }
.dropzone-icon { grid-row: 1 / 3; display: grid; place-items: center; width: 42px; height: 42px; border: 1px solid rgba(216, 243, 107, .4); border-radius: 50%; color: var(--accent); font-size: 23px; }
.dropzone-title { align-self: end; font-size: 15px; font-weight: 600; }
.dropzone-meta { align-self: start; margin-top: 5px; color: var(--muted); font: 10px ui-monospace, SFMono-Regular, Menlo, monospace; }
.upload-state { display: flex; align-items: flex-start; gap: 9px; color: var(--muted); font-size: 12px; line-height: 1.5; }
.state-icon { display: inline-grid; flex: 0 0 auto; place-items: center; width: 20px; height: 20px; border: 1px solid var(--dim); border-radius: 50%; color: var(--accent); font: 11px ui-monospace, SFMono-Regular, Menlo, monospace; }
.upload-state.success { color: var(--ink); }
.upload-state.success .state-icon { border-color: var(--accent); background: var(--accent); color: #0b111a; }
.upload-state.error { color: var(--danger); }
.upload-state.error .state-icon { border-color: var(--danger); color: var(--danger); }
.upload-state.loading .state-icon { animation: pulse 1.2s ease-in-out infinite; }

.dashboard { padding: 104px 0 0; }
.dashboard-head { display: flex; justify-content: space-between; align-items: end; gap: 24px; }
.dashboard-head h2 { margin: 0; font-size: clamp(27px, 4vw, 46px); letter-spacing: -.06em; }
.text-button { border: 0; border-bottom: 1px solid var(--dim); padding: 0 0 7px; background: none; color: var(--muted); cursor: pointer; font-size: 12px; transition: color .2s, border-color .2s; }
.text-button span { margin-left: 6px; color: var(--accent); }
.text-button:hover { border-color: var(--accent); color: var(--ink); }
.stats-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 11px; margin-top: 27px; }
.stat-card { min-height: 126px; display: flex; flex-direction: column; padding: 19px; border: 1px solid var(--line); border-radius: 12px; background: rgba(19, 27, 37, .8); }
.stat-card-primary { border-color: rgba(216, 243, 107, .45); background: linear-gradient(135deg, rgba(216, 243, 107, .13), rgba(19, 27, 37, .8) 60%); }
.stat-label { color: var(--muted); font: 10px ui-monospace, SFMono-Regular, Menlo, monospace; letter-spacing: .13em; }
.stat-card strong { margin-top: auto; color: var(--ink); font: 36px/1 ui-monospace, SFMono-Regular, Menlo, monospace; letter-spacing: -.08em; }
.stat-card-primary strong { color: var(--accent); }
.stat-foot { margin-top: 8px; color: var(--dim); font-size: 11px; }

.workspace-grid { display: grid; grid-template-columns: minmax(290px, .38fr) minmax(0, 1fr); gap: 12px; margin-top: 12px; }
.browser-panel, .viewer-panel { min-width: 0; border: 1px solid var(--line); border-radius: 14px; background: rgba(19, 27, 37, .82); }
.browser-panel { min-height: 700px; padding: 23px 14px 14px; }
.panel-heading, .viewer-heading { display: flex; justify-content: space-between; align-items: start; padding: 0 9px; }
.panel-heading h3, .viewer-heading h3 { max-width: 650px; margin: 10px 0 0; overflow: hidden; font-size: 21px; font-weight: 500; letter-spacing: -.035em; text-overflow: ellipsis; white-space: nowrap; }
.result-count, .viewer-meta { color: var(--dim); font: 10px ui-monospace, SFMono-Regular, Menlo, monospace; }
.result-count { padding-top: 29px; }
.filters { display: grid; gap: 8px; margin: 24px 0 15px; }
.search-field, .select-field { display: flex; align-items: center; border: 1px solid var(--line); border-radius: 8px; background: var(--panel-soft); }
.search-field span { padding-left: 11px; color: var(--accent); font-size: 19px; line-height: 1; }
.search-field input, .select-field select { width: 100%; min-width: 0; border: 0; outline: 0; background: transparent; color: var(--ink); }
.search-field input { padding: 11px 10px 11px 7px; font-size: 12px; }
.search-field input::placeholder { color: var(--dim); }
.select-field span { padding-left: 11px; color: var(--dim); font: 10px ui-monospace, SFMono-Regular, Menlo, monospace; }
.select-field select { padding: 11px 10px 11px 7px; font-size: 12px; }
.threshold-control { margin: 0 9px 15px; padding: 12px 0 13px; border-bottom: 1px solid var(--line); }
.threshold-row { display: flex; justify-content: space-between; color: var(--muted); font: 10px ui-monospace, SFMono-Regular, Menlo, monospace; }
.threshold-row output { color: var(--accent); }
input[type="range"] { width: 100%; height: 3px; margin: 14px 0 5px; accent-color: var(--accent); cursor: pointer; }
.range-ends { display: flex; justify-content: space-between; color: var(--dim); font: 9px ui-monospace, SFMono-Regular, Menlo, monospace; }
.image-list { display: grid; gap: 4px; max-height: 504px; overflow: auto; padding-right: 2px; }
.image-list::-webkit-scrollbar { width: 4px; }
.image-list::-webkit-scrollbar-thumb { border-radius: 4px; background: var(--dim); }
.image-row { display: grid; grid-template-columns: 31px minmax(0, 1fr) 20px; gap: 7px; align-items: center; min-width: 0; padding: 11px 9px; border: 1px solid transparent; border-radius: 8px; background: none; text-align: left; cursor: pointer; transition: border-color .15s, background .15s; }
.image-row:hover { border-color: var(--line); background: rgba(255,255,255,.035); }
.image-row.is-active { border-color: rgba(216, 243, 107, .45); background: var(--accent-soft); }
.row-index { align-self: start; padding-top: 2px; color: var(--dim); font: 9px ui-monospace, SFMono-Regular, Menlo, monospace; }
.row-main { min-width: 0; }
.row-main strong { display: block; overflow: hidden; color: #d9e1e7; font: 11px ui-monospace, SFMono-Regular, Menlo, monospace; text-overflow: ellipsis; white-space: nowrap; }
.row-main small { display: block; margin-top: 5px; color: var(--muted); font-size: 10px; }
.row-arrow { color: var(--dim); font-size: 14px; transition: color .15s, transform .15s; }
.image-row:hover .row-arrow, .image-row.is-active .row-arrow { color: var(--accent); transform: translate(2px, -2px); }
.list-more { padding: 13px 8px; color: var(--dim); font: 10px ui-monospace, SFMono-Regular, Menlo, monospace; text-align: center; }
.list-empty { padding: 40px 12px; color: var(--muted); font-size: 12px; text-align: center; }

.viewer-panel { padding: 23px 23px 15px; }
.viewer-meta { padding-top: 29px; }
.viewer-stage { position: relative; min-height: 610px; display: grid; place-items: center; margin-top: 21px; overflow: hidden; border: 1px solid var(--line); border-radius: 10px; background: radial-gradient(circle at 50% 45%, rgba(42, 59, 72, .44), transparent 48%), var(--canvas); }
.viewer-stage::before, .viewer-stage::after { position: absolute; width: 15px; height: 15px; border-color: rgba(216, 243, 107, .42); content: ""; pointer-events: none; }
.viewer-stage::before { top: 14px; left: 14px; border-top: 1px solid; border-left: 1px solid; }
.viewer-stage::after { right: 14px; bottom: 14px; border-right: 1px solid; border-bottom: 1px solid; }
.viewer-empty, .image-error { display: grid; place-items: center; gap: 12px; color: var(--muted); font-size: 13px; text-align: center; }
.viewer-empty strong, .image-error strong { color: var(--ink); font-size: 14px; font-weight: 500; }
.viewer-empty span:last-child, .image-error small { color: var(--dim); font-size: 11px; }
.empty-cross { display: grid; place-items: center; width: 55px; height: 55px; border: 1px solid var(--dim); border-radius: 50%; color: var(--accent); font-size: 27px; font-weight: 200; }
.canvas-frame { width: 100%; height: 100%; min-height: 610px; display: grid; place-items: center; padding: 16px; }
.canvas-frame canvas { display: block; max-width: 100%; max-height: 100%; border: 1px solid rgba(255,255,255,.14); box-shadow: 0 18px 50px rgba(0,0,0,.3); }
.image-error > span { display: grid; place-items: center; width: 43px; height: 43px; border: 1px solid var(--danger); border-radius: 50%; color: var(--danger); font: 18px ui-monospace, SFMono-Regular, Menlo, monospace; }
.image-error small { max-width: 340px; line-height: 1.6; }
.viewer-loading { position: absolute; right: 18px; bottom: 16px; display: flex; align-items: center; gap: 8px; color: var(--muted); font: 10px ui-monospace, SFMono-Regular, Menlo, monospace; }
.spinner { width: 11px; height: 11px; border: 1px solid var(--dim); border-top-color: var(--accent); border-radius: 50%; animation: spin .8s linear infinite; }
.viewer-footer { display: flex; justify-content: space-between; align-items: start; gap: 20px; min-height: 28px; padding: 14px 1px 0; }
.legend { display: flex; flex-wrap: wrap; gap: 8px 13px; }
.legend-item { color: var(--muted); font: 10px ui-monospace, SFMono-Regular, Menlo, monospace; }
.legend-item i { display: inline-block; width: 7px; height: 7px; margin-right: 5px; border-radius: 2px; background: var(--legend-color); }
.legend-item b { margin-left: 3px; color: var(--dim); font-weight: 400; }
.viewer-hint { flex: 0 0 auto; color: var(--dim); font: 10px/1.5 ui-monospace, SFMono-Regular, Menlo, monospace; text-align: right; }

.privacy-strip { display: flex; align-items: center; gap: 14px; margin: 76px 0 0; padding: 18px 1px; border-top: 1px solid var(--line); color: var(--muted); font-size: 12px; }
.privacy-icon { color: var(--accent); font-size: 24px; transform: rotate(90deg); }
.privacy-strip strong { color: var(--ink); font-weight: 500; }
.privacy-side { margin-left: auto; color: var(--dim); font: 10px ui-monospace, SFMono-Regular, Menlo, monospace; text-transform: uppercase; }
.privacy-side span { margin-left: 7px; color: var(--accent); font-size: 8px; }
.footer { width: min(1320px, calc(100% - 64px)); display: flex; justify-content: space-between; margin: 0 auto; padding: 26px 0 34px; color: var(--dim); font: 9px ui-monospace, SFMono-Regular, Menlo, monospace; letter-spacing: .1em; }

@keyframes spin { to { transform: rotate(360deg); } }
@keyframes pulse { 50% { opacity: .35; } }

@media (max-width: 950px) {
  .hero { gap: 40px; grid-template-columns: 1fr .6fr; }
  .upload-panel { grid-template-columns: 1fr 1.2fr; }
  .upload-state { grid-column: 1 / -1; }
  .workspace-grid { grid-template-columns: 1fr; }
  .browser-panel { min-height: auto; }
  .image-list { max-height: 340px; }
  .viewer-stage, .canvas-frame { min-height: 500px; }
}

@media (max-width: 680px) {
  .topbar, .page-shell, .footer { width: min(100% - 32px, 1320px); }
  .topbar { padding-top: 18px; }
  .topbar-note { display: none; }
  .hero { min-height: 0; display: block; padding: 58px 0 48px; }
  h1 { font-size: clamp(4.2rem, 20vw, 7rem); }
  .hero-copy { margin-top: 38px; }
  .upload-panel { display: block; padding: 21px; }
  .dropzone { margin-top: 24px; }
  .upload-state { margin-top: 18px; }
  .dashboard { padding-top: 70px; }
  .dashboard-head { align-items: start; flex-direction: column; }
  .stats-grid { grid-template-columns: repeat(2, 1fr); }
  .stat-card { min-height: 110px; padding: 15px; }
  .stat-card strong { font-size: 28px; }
  .viewer-panel { padding: 18px 13px 13px; }
  .viewer-heading { padding: 0 5px; }
  .viewer-stage, .canvas-frame { min-height: 370px; }
  .viewer-footer { display: block; }
  .viewer-hint { display: block; margin-top: 12px; text-align: left; }
  .privacy-strip { align-items: start; margin-top: 54px; }
  .privacy-side { display: none; }
  .footer { padding-bottom: 24px; }
}