@font-face {
  font-family: "tw";
  src: url("fonts/tw.ttf") format("truetype");
  font-weight: 400;
  font-style: normal;
  font-display: swap;
}

:root {
  color-scheme: dark;
  --ui-text: #f6e6b0;
  --ui-text-dim: rgba(246, 230, 176, 0.72);
  --ui-text-soft: rgba(246, 230, 176, 0.48);
  --ui-void: #050403;
  --ui-panel: #11100d;
  --ui-panel-strong: #17130e;
  --ui-line: #b88942;
  --ui-line-dim: rgba(184, 137, 66, 0.35);
  --ui-gold: #f0c86a;
  --ui-blue: #8797b5;
  --pixel-cut: polygon(0 0, calc(100% - 8px) 0, 100% 8px, 100% 100%, 8px 100%, 0 calc(100% - 8px));
  --ui-font: "tw", Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

html,
body {
  min-height: 100%;
}

html {
  font-size: 18px;
}

body {
  margin: 0;
  background:
    linear-gradient(rgba(240, 200, 106, 0.026) 1px, transparent 1px),
    linear-gradient(90deg, rgba(240, 200, 106, 0.026) 1px, transparent 1px),
    var(--ui-void);
  background-size: 16px 16px, 16px 16px, auto;
  color: var(--ui-text);
  font-family: var(--ui-font);
  font-weight: 400;
  letter-spacing: 0;
  line-height: 1.4;
}

button,
input,
select {
  font: inherit;
}

.asteroid-app {
  position: relative;
  min-height: 100svh;
  padding: 36px 24px;
  overflow: visible;
}

.asteroid-app::before {
  position: fixed;
  inset: 0;
  content: "";
  pointer-events: none;
  background-image:
    linear-gradient(rgba(0, 0, 0, 0.38) 2px, transparent 2px),
    linear-gradient(90deg, rgba(0, 0, 0, 0.38) 2px, transparent 2px);
  background-size: 8px 8px;
  opacity: 0.28;
}

.asteroid-shell {
  position: relative;
  z-index: 1;
  width: min(1320px, 100%);
  margin: 0 auto;
}

.asteroid-hero {
  max-width: 860px;
  margin-bottom: 22px;
}

.asteroid-eyebrow {
  margin: 0 0 12px;
  color: rgba(241, 210, 132, 0.84);
  font-size: 0.82rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-shadow: 0 0 18px rgba(217, 155, 75, 0.34);
  text-transform: uppercase;
}

.asteroid-hero h1,
.preview-meta h2,
.panel-heading h2,
.section-title {
  margin: 0;
  color: #fff4d6;
  font-weight: 500;
  letter-spacing: 0;
  line-height: 1.08;
  text-shadow: 3px 3px 0 #000;
  text-transform: uppercase;
}

.asteroid-hero h1 {
  font-size: clamp(3rem, 6vw, 5.4rem);
}

.asteroid-copy {
  max-width: 86ch;
  margin: 14px 0 0;
  padding: 10px 12px;
  border: 2px solid var(--ui-line-dim);
  background: #0d0b08;
  box-shadow: 4px 4px 0 #000;
  clip-path: var(--pixel-cut);
  color: var(--ui-text-dim);
  font-size: 1rem;
  line-height: 1.55;
}

.app-shell {
  display: grid;
  grid-template-columns: minmax(360px, 440px) minmax(0, 1fr);
  gap: 22px;
  align-items: start;
}

.control-panel,
.preview-panel {
  position: relative;
  border: 2px solid var(--ui-line-dim);
  border-radius: 0;
  background: var(--ui-panel);
  box-shadow: 6px 6px 0 #000;
  clip-path: var(--pixel-cut);
}

.control-panel {
  display: grid;
  gap: 16px;
  align-content: start;
  padding: 20px;
  overflow: hidden;
}

.preview-panel {
  padding: 20px;
  overflow: hidden;
}

.panel-heading {
  display: grid;
  gap: 4px;
  padding-bottom: 2px;
}

.panel-heading h2,
.section-title {
  font-size: 1.05rem;
}

.section-title {
  margin: 2px 0 -2px;
}

.modifier-panel {
  border: 2px solid rgba(184, 137, 66, 0.26);
  border-radius: 0;
  background: #0b0907;
  box-shadow: 4px 4px 0 #000;
  clip-path: var(--pixel-cut);
}

.modifier-panel summary {
  min-height: 48px;
  padding: 15px 14px;
  color: rgba(241, 210, 132, 0.82);
  cursor: pointer;
  font-size: 0.95rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  list-style: none;
  text-transform: uppercase;
}

.modifier-panel summary::-webkit-details-marker {
  display: none;
}

.modifier-panel summary::after {
  content: "+";
  float: right;
  color: var(--ui-gold);
}

.modifier-panel[open] summary::after {
  content: "-";
}

.modifier-body {
  display: grid;
  gap: 12px;
  padding: 0 12px 12px;
}

p {
  margin: 0;
}

#seedReadout {
  color: var(--ui-text-dim);
  font-size: 0.95rem;
}

.field-group,
.slider-field {
  display: grid;
  gap: 10px;
}

.seed-row {
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 10px;
}

.seed-row label,
.seed-row input {
  grid-column: 1 / -1;
}

label,
.slider-label {
  color: rgba(241, 210, 132, 0.76);
  font-size: 0.88rem;
  font-weight: 600;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

.slider-label {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
}

.slider-meta {
  display: inline-flex;
  align-items: center;
  gap: 10px;
}

.override-toggle {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  min-height: 18px;
  color: var(--ui-text-soft);
  font-size: 0.78rem;
}

.override-toggle input {
  appearance: none;
  display: inline-grid;
  place-content: center;
  width: 16px;
  height: 16px;
  margin: 0;
  border: 2px solid var(--ui-line);
  background: #080705;
  box-shadow:
    2px 2px 0 #000,
    inset 0 0 0 2px #080705;
  clip-path: var(--pixel-cut);
}

.override-toggle input::before {
  width: 6px;
  height: 6px;
  content: "";
  transform: scale(0);
  background: var(--ui-gold);
}

.override-toggle input:checked::before {
  transform: scale(1);
}

output {
  color: #fff0cc;
  font-size: 0.88rem;
  font-weight: 600;
  text-transform: none;
}

input[type="text"],
select,
button {
  width: 100%;
  border: 2px solid var(--ui-line-dim);
  border-radius: 0;
  clip-path: var(--pixel-cut);
}

input[type="text"],
select {
  min-height: 46px;
  padding: 0 12px;
  outline: none;
  background: #080705;
  box-shadow:
    3px 3px 0 #000,
    inset 0 -8px 0 rgba(240, 200, 106, 0.03);
  color: var(--ui-text);
}

input[type="text"]:focus,
select:focus,
button:focus-visible {
  outline: 2px solid rgba(241, 210, 132, 0.78);
  outline-offset: 2px;
}

select {
  appearance: none;
  padding-right: 36px;
  background-color: #080705;
  background-image:
    linear-gradient(45deg, transparent 50%, var(--ui-gold) 50%),
    linear-gradient(135deg, var(--ui-gold) 50%, transparent 50%),
    linear-gradient(90deg, transparent, rgba(240, 200, 106, 0.1));
  background-position:
    calc(100% - 18px) 16px,
    calc(100% - 12px) 16px,
    calc(100% - 34px) 0;
  background-repeat: no-repeat;
  background-size: 6px 6px, 6px 6px, 34px 100%;
  color-scheme: dark;
}

button {
  min-height: 46px;
  padding: 0 12px;
  background: var(--ui-gold);
  box-shadow: 4px 4px 0 #000;
  color: #130d07;
  cursor: pointer;
  font-weight: 800;
  letter-spacing: 0.02em;
  text-transform: uppercase;
}

button:hover {
  transform: translate(2px, 2px);
  box-shadow: 2px 2px 0 #000;
}

button:active {
  transform: translate(3px, 3px);
  box-shadow: 1px 1px 0 #000;
}

input[type="range"] {
  appearance: none;
  width: 100%;
  height: 24px;
  padding: 0;
  border: 0;
  background: transparent;
  cursor: pointer;
}

input[type="range"]::-webkit-slider-runnable-track {
  height: 10px;
  border: 2px solid var(--ui-line-dim);
  background:
    repeating-linear-gradient(90deg, rgba(240, 200, 106, 0.22) 0 2px, transparent 2px 8px),
    #080705;
  box-shadow: 2px 2px 0 #000;
}

input[type="range"]:disabled {
  cursor: not-allowed;
  opacity: 0.42;
}

input[type="range"]::-webkit-slider-thumb {
  appearance: none;
  width: 16px;
  height: 18px;
  margin-top: -6px;
  border: 2px solid #2b1607;
  background: var(--ui-gold);
  box-shadow: 2px 2px 0 #000;
}

input[type="range"]::-moz-range-track {
  height: 10px;
  border: 2px solid var(--ui-line-dim);
  background:
    repeating-linear-gradient(90deg, rgba(240, 200, 106, 0.22) 0 2px, transparent 2px 8px),
    #080705;
  box-shadow: 2px 2px 0 #000;
}

input[type="range"]::-moz-range-thumb {
  width: 14px;
  height: 16px;
  border: 2px solid #2b1607;
  border-radius: 0;
  background: var(--ui-gold);
  box-shadow: 2px 2px 0 #000;
}

.preview-meta {
  display: grid;
  grid-template-columns: max-content minmax(220px, 1fr);
  align-items: start;
  gap: 14px;
  margin-bottom: 12px;
}

.preview-meta h2 {
  max-width: 11ch;
  overflow-wrap: anywhere;
  color: #fff0cc;
  font-size: clamp(2rem, 3vw, 3.1rem);
}

.trait-note {
  min-height: 48px;
  padding: 10px 12px;
  border: 2px solid rgba(184, 137, 66, 0.28);
  background: #0b0907;
  box-shadow: 3px 3px 0 #000;
  clip-path: var(--pixel-cut);
  color: var(--ui-text-dim);
  font-size: 0.95rem;
  line-height: 1.45;
}

.canvas-frame {
  position: relative;
  overflow: hidden;
  border: 2px solid rgba(184, 137, 66, 0.28);
  border-radius: 0;
  background: #050505;
  box-shadow: 5px 5px 0 #000;
  clip-path: var(--pixel-cut);
}

body[data-background-mode="blue"] .canvas-frame {
  background: #06192b;
}

.canvas-frame::before {
  position: absolute;
  inset: 12px;
  z-index: 1;
  content: "";
  border: 2px solid rgba(184, 137, 66, 0.2);
  pointer-events: none;
}

.canvas-frame::after {
  position: absolute;
  inset: 0;
  content: "";
  background-image:
    linear-gradient(rgba(240, 200, 106, 0.04) 2px, transparent 2px),
    linear-gradient(90deg, rgba(240, 200, 106, 0.04) 2px, transparent 2px);
  background-size: 16px 16px;
  pointer-events: none;
}

#asteroidCanvas {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 1 / 1;
  cursor: crosshair;
  image-rendering: pixelated;
  image-rendering: crisp-edges;
}

@media (max-width: 980px) {
  .asteroid-app {
    padding: 20px 12px;
  }

  .app-shell,
  .preview-meta {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 640px) {
  .seed-row {
    grid-template-columns: 1fr;
  }
}