:root {
  color-scheme: dark;
  --ink: #f6ecd5;
  --muted: #b7aa94;
  --red: #a82e25;
  --red-bright: #d14a36;
  --gold: #d6b865;
  --panel: #211c18;
  --panel-deep: #15120f;
  --line: #594b3b;
  --shadow: rgba(0, 0, 0, .48);
  font-family: "Yu Gothic UI", "Hiragino Kaku Gothic ProN", system-ui, sans-serif;
}

* { box-sizing: border-box; }

html {
  min-height: 100%;
  background: #0d0a08;
}

body {
  min-width: 300px;
  min-height: 100vh;
  margin: 0;
  color: var(--ink);
  background:
    radial-gradient(circle at 80% 4%, rgba(168, 46, 37, .2), transparent 28rem),
    linear-gradient(rgba(255, 255, 255, .018) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, .018) 1px, transparent 1px),
    #0d0a08;
  background-size: auto, 20px 20px, 20px 20px, auto;
}

button, input, select { font: inherit; }
button, label.ig-file, input[type="range"], select { touch-action: manipulation; }

.site-header {
  width: min(1180px, calc(100% - 32px));
  margin: 0 auto;
  padding: 48px 8px 28px;
  display: flex;
  align-items: end;
  justify-content: space-between;
  gap: 32px;
}

.header-copy { max-width: 760px; }
.eyebrow, .panel-kicker {
  margin: 0 0 8px;
  color: var(--gold);
  font: 800 11px/1.2 ui-monospace, "Cascadia Mono", monospace;
  letter-spacing: .18em;
}

h1, h2, h3, p { margin-top: 0; }
h1 {
  margin-bottom: 14px;
  font-size: clamp(28px, 5vw, 54px);
  line-height: 1.08;
  letter-spacing: -.04em;
}
.header-copy > p:last-child {
  max-width: 680px;
  margin-bottom: 0;
  color: var(--muted);
  line-height: 1.75;
}

.header-actions {
  display: flex;
  flex-direction: column;
  gap: 9px;
  min-width: 184px;
}

#image-glitch-panel {
  width: min(1180px, calc(100% - 32px));
  margin: 0 auto;
}

.ig-shell {
  overflow: hidden;
  background: var(--panel);
  border: 1px solid var(--gold);
  border-radius: 16px;
  box-shadow: 0 24px 80px var(--shadow), inset 0 1px rgba(255, 255, 255, .04);
}

.ig-head {
  display: flex;
  align-items: end;
  justify-content: space-between;
  gap: 24px;
  padding: 20px 22px;
  border-bottom: 1px solid rgba(255, 255, 255, .12);
  background:
    linear-gradient(110deg, rgba(255, 255, 255, .06), transparent 35%),
    var(--red);
}
.ig-head h2 { margin: 0; font-size: clamp(19px, 3vw, 27px); }
.ig-head > p {
  max-width: 380px;
  margin: 0;
  color: #f1dacb;
  font-size: 12px;
  line-height: 1.55;
  text-align: right;
}
.panel-kicker { color: #ffdaa1; }

.ig-body {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 350px;
  gap: 0;
}

.ig-preview-wrap {
  min-width: 0;
  padding: 18px;
  border-right: 1px solid var(--line);
  background: #17130f;
}
.ig-preview {
  position: sticky;
  top: 18px;
  min-height: min(68vh, 680px);
  display: grid;
  place-items: center;
  overflow: hidden;
  padding: 12px;
  border: 1px solid #40372d;
  border-radius: 9px;
  background:
    repeating-conic-gradient(#0a0908 0 25%, #0d0c0a 0 50%) 0 / 16px 16px;
  box-shadow: inset 0 0 40px #000;
}
#ig-canvas {
  display: block;
  max-width: 100%;
  max-height: 72vh;
  image-rendering: pixelated;
  cursor: zoom-in;
  box-shadow: 0 12px 36px rgba(0, 0, 0, .6);
}
#ig-canvas:focus-visible {
  outline: 2px solid #ffe58d;
  outline-offset: 4px;
}
#ig-fullscreen-canvas {
  display: none;
  image-rendering: pixelated;
  cursor: zoom-out;
}
.ig-preview canvas[hidden] { display: none !important; }
#ig-fullscreen-canvas:focus-visible {
  outline: 2px solid #ffe58d;
  outline-offset: -4px;
}
#ig-canvas.picking { cursor: crosshair; }
.ig-preview:fullscreen {
  position: fixed;
  inset: 0;
  width: 100vw;
  height: 100vh;
  min-height: 100vh;
  padding: 0;
  border: 0;
  border-radius: 0;
  background: #000;
}
.ig-preview:fullscreen #ig-canvas {
  width: 100vw;
  height: 100vh;
  max-width: none;
  max-height: none;
  object-fit: cover;
  cursor: zoom-out;
  box-shadow: none;
}
.ig-preview:fullscreen.fullscreen-contain #ig-canvas { object-fit: contain; }
.ig-preview:fullscreen.fullscreen-tile #ig-fullscreen-canvas:not([hidden]) {
  display: block;
  position: absolute;
  inset: 0;
  z-index: 4;
  width: 100vw;
  height: 100vh;
}
#ig-empty {
  display: flex;
  max-width: 340px;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  color: #928575;
  text-align: center;
  line-height: 1.6;
}
#ig-empty strong { color: #d6c6ac; font-size: 16px; }
.empty-icon { color: var(--gold); font: 42px/1 ui-monospace, monospace; }
#ig-tile-selection {
  position: absolute;
  z-index: 2;
  display: none;
  pointer-events: none;
  border: 2px solid #ffe58d;
  background: rgba(255, 229, 141, .12);
  box-shadow: 0 0 0 1px #5c3d00, 0 0 12px rgba(255, 220, 100, .7);
}
.preview-help {
  display: flex;
  flex-wrap: wrap;
  gap: 8px 18px;
  margin-top: 11px;
  color: #867a69;
  font: 10px/1.4 ui-monospace, monospace;
  letter-spacing: .04em;
}

.ig-controls {
  display: flex;
  flex-direction: column;
  gap: 12px;
  padding: 15px;
  background: var(--panel-deep);
}
.control-group {
  padding: 12px;
  border: 1px solid #443a2f;
  border-radius: 8px;
  background: rgba(255, 255, 255, .025);
}
.action-group {
  border-color: #8c6e39;
  background:
    linear-gradient(135deg, rgba(168, 46, 37, .12), transparent 55%),
    rgba(255, 255, 255, .035);
  box-shadow: inset 3px 0 var(--red);
}
.control-group h3 {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 12px;
  color: #ead9bb;
  font-size: 13px;
  letter-spacing: .06em;
}
.control-group h3 span {
  color: var(--gold);
  font: 700 10px/1 ui-monospace, monospace;
}
.group-note {
  margin: -3px 0 12px;
  color: #998c7a;
  font-size: 10px;
  line-height: 1.6;
}
.ig-controls label:not(.ig-check) {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 6px 10px;
  margin-top: 11px;
  color: #d8cab5;
  font-size: 12px;
}
.ig-controls label:first-of-type { margin-top: 0; }
.ig-controls output {
  color: #f2d584;
  font: 700 11px ui-monospace, monospace;
}
.ig-controls input[type="range"] {
  grid-column: 1 / -1;
  width: 100%;
  margin: 0;
  accent-color: var(--red-bright);
}
.ig-controls select,
.ig-controls input[type="number"] {
  min-width: 96px;
  max-width: 185px;
  padding: 6px 7px;
  color: #eee4d2;
  border: 1px solid #665a48;
  border-radius: 5px;
  background: #100e0c;
}
.color-pick-row {
  display: flex;
  flex-wrap: wrap;
  align-items: stretch;
  gap: 8px;
  margin-top: 8px;
}
.color-pick-row .ig-button { flex: 1; }
.color-well {
  display: flex !important;
  min-width: 105px;
  margin: 0 !important;
  padding: 6px 7px;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
  border: 1px solid #544838;
  border-radius: 6px;
  background: #171411;
}
.color-well input[type="color"] {
  width: 32px;
  height: 28px;
  padding: 0;
  border: 1px solid #806d48;
  border-radius: 4px;
  background: transparent;
  cursor: pointer;
}
.tint-row { justify-content: flex-start; margin-top: 12px; }
.match-count {
  margin: 9px 0 0;
  padding: 7px 8px;
  color: #f2d584;
  border-left: 2px solid #8e783d;
  background: rgba(214, 184, 101, .055);
  font: 10px/1.45 ui-monospace, monospace;
}
.event-order { margin: 11px 0 0; }
.color-candidates {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  min-height: 35px;
  margin-top: 9px;
  padding: 6px;
  border: 1px solid #443a2f;
  border-radius: 6px;
  background: #100e0c;
}
.color-candidate {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  min-height: 25px;
  padding: 3px 5px 3px 4px;
  color: #e8dcc8;
  border: 1px solid #61533f;
  border-radius: 999px;
  background: #29231d;
  font: 9px/1 ui-monospace, monospace;
}
.color-candidate.active {
  border-color: #ffe58d;
  box-shadow: 0 0 0 1px rgba(255, 229, 141, .25);
}
.candidate-swatch {
  width: 18px;
  height: 18px;
  flex: 0 0 auto;
  border: 1px solid rgba(255, 255, 255, .55);
  border-radius: 50%;
  background: var(--candidate-color);
}
.candidate-remove {
  width: 18px;
  height: 18px;
  padding: 0;
  color: #cdbda5;
  border: 0;
  border-radius: 50%;
  background: #15120f;
  cursor: pointer;
  font: 12px/1 system-ui, sans-serif;
}
.candidate-remove:disabled { cursor: default; opacity: .25; }
.candidate-swatch:focus-visible, .candidate-remove:focus-visible {
  outline: 2px solid #ffe58d;
  outline-offset: 2px;
}
.active-color-note {
  margin: 6px 2px 0;
  color: #f2d584;
  font: 10px/1.4 ui-monospace, monospace;
}
.fault-float {
  margin-top: 7px;
  padding: 7px;
  border: 1px solid #3d342a;
  border-radius: 6px;
  background: rgba(0, 0, 0, .12);
}
.fault-float .ig-check { margin-top: 0; }
.fault-range {
  display: flex;
  align-items: center;
  gap: 5px;
  margin-top: 6px;
  color: #978a79;
  font-size: 10px;
}
.ig-controls .fault-range input[type="number"] {
  width: 54px;
  min-width: 0;
  padding: 5px;
  text-align: center;
}
.ig-check {
  display: grid;
  grid-template-columns: auto 1fr;
  align-items: center;
  gap: 8px;
  margin-top: 11px;
  padding: 7px 8px;
  color: #d8cab5;
  border: 1px solid #4c4234;
  border-radius: 5px;
  background: #171411;
  cursor: pointer;
  font-size: 11px;
  line-height: 1.45;
}
.ig-check input {
  width: 17px;
  height: 17px;
  margin: 0;
  accent-color: var(--red-bright);
}

.ig-row {
  display: flex;
  flex-wrap: wrap;
  gap: 7px;
  margin-top: 10px;
}
.split-row { align-items: center; justify-content: space-between; }
.ig-file, .ig-button {
  min-height: 38px;
  padding: 8px 11px;
  color: #fff5db;
  border: 1px solid #806d48;
  border-radius: 6px;
  background: #332c24;
  box-shadow: inset 0 1px rgba(255, 255, 255, .06);
  cursor: pointer;
  font-weight: 700;
  font-size: 12px;
  line-height: 1.2;
  text-align: center;
}
.ig-file {
  position: relative;
  display: grid;
  place-items: center;
}
.ig-file input {
  position: absolute;
  width: 1px;
  height: 1px;
  opacity: 0;
}
.ig-file.primary, .ig-button.primary {
  border-color: #e07a66;
  background: var(--red);
}
.ig-button.compact { min-height: 30px; padding: 5px 9px; }
.ig-button.full { width: 100%; margin-top: 11px; }
.ig-button.running {
  border-color: #8bd19b;
  background: #2f7443;
  box-shadow: 0 0 10px rgba(92, 210, 118, .25);
}
.ig-button:hover:not(:disabled), .ig-file:hover {
  filter: brightness(1.15);
  transform: translateY(-1px);
}
.ig-button:focus-visible, .ig-file:focus-within, select:focus-visible, input:focus-visible {
  outline: 2px solid #ffe58d;
  outline-offset: 2px;
}
.ig-button:disabled { cursor: default; opacity: .38; }
.ig-note { color: #ad9d85; font-size: 10px; line-height: 1.55; }
.detail-note { margin: 0 4px 4px; }
#ig-status {
  min-height: 2.7em;
  padding: 9px 10px;
  color: #f2d584;
  border-left: 2px solid var(--gold);
  background: rgba(214, 184, 101, .06);
  font: 11px/1.5 ui-monospace, monospace;
}

.source-picker {
  width: min(1100px, calc(100% - 24px));
  max-width: none;
  max-height: calc(100vh - 24px);
  padding: 0;
  color: var(--ink);
  border: 1px solid var(--gold);
  border-radius: 14px;
  background: #17130f;
  box-shadow: 0 28px 100px #000;
}
.source-picker::backdrop {
  background: rgba(5, 4, 3, .88);
  backdrop-filter: blur(4px);
}
.picker-shell { padding: 16px; }
.picker-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
}
.picker-head h2 { margin: 0; font-size: clamp(18px, 3vw, 25px); }
.picker-help {
  margin: 13px 0;
  color: var(--muted);
  font-size: 12px;
  line-height: 1.6;
}
.picker-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px;
}
.picker-bank {
  min-width: 0;
  padding: 10px;
  border: 1px solid #4b4033;
  border-radius: 9px;
  background: #100e0c;
}
.picker-bank h3 {
  margin: 0 0 8px;
  color: #e8d7b9;
  font-size: 12px;
}
.picker-canvas-wrap {
  position: relative;
  min-height: 240px;
  display: grid;
  place-items: center;
  overflow: auto;
  border: 1px solid #352e27;
  border-radius: 6px;
  background: repeating-conic-gradient(#090807 0 25%, #0d0b09 0 50%) 0 / 14px 14px;
}
.picker-canvas-wrap canvas {
  display: block;
  max-width: 100%;
  max-height: 62vh;
  image-rendering: pixelated;
  cursor: crosshair;
}
.picker-selection {
  position: absolute;
  display: none;
  pointer-events: none;
  border: 2px solid #ffe58d;
  background: rgba(255, 229, 141, .13);
  box-shadow: 0 0 0 1px #5c3d00, 0 0 14px rgba(255, 220, 100, .75);
}
#ig-picker-alt-empty {
  position: absolute;
  max-width: 220px;
  margin: 0;
  color: #877b6c;
  font-size: 11px;
  line-height: 1.6;
  text-align: center;
}
.picker-status {
  min-height: 1.5em;
  margin: 11px 2px 0;
  color: #f2d584;
  font: 11px/1.5 ui-monospace, monospace;
}

footer {
  width: min(1180px, calc(100% - 32px));
  margin: 0 auto;
  padding: 26px 8px 38px;
  color: #6f6559;
  font: 10px ui-monospace, monospace;
  text-align: right;
}
footer p { margin: 0; }

@media (max-width: 880px) {
  .site-header { align-items: stretch; flex-direction: column; }
  .header-actions { flex-flow: row wrap; }
  .header-actions > * { flex: 1 1 160px; }
  .ig-body { grid-template-columns: 1fr; }
  .ig-preview-wrap { border-right: 0; border-bottom: 1px solid var(--line); }
  .ig-preview { position: relative; top: auto; min-height: 46vh; }
  .picker-grid { grid-template-columns: 1fr; }
  .picker-canvas-wrap { min-height: 210px; }
}

@media (max-width: 560px) {
  .site-header, #image-glitch-panel, footer { width: min(100% - 16px, 1180px); }
  .site-header { gap: 22px; padding-top: 28px; }
  .header-actions { flex-direction: column; }
  .ig-head { align-items: start; flex-direction: column; padding: 17px; }
  .ig-head > p { text-align: left; }
  .ig-preview-wrap { padding: 9px; }
  .ig-preview { min-height: 280px; padding: 7px; }
  .ig-controls { padding: 9px; }
  .control-group { padding: 11px 10px; }
  .ig-row .ig-button { flex: 1 1 130px; }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { scroll-behavior: auto !important; }
}