:root {
  --bg: #0e0d0b;
  --bg-raise: #1a1814;
  --ink: #f3efe6;
  --muted: #b7b0a4;
  --line: #2c2822;
  --accent: #e4572e;
  --accent-2: #e8c07a;
  --chip-ink: #140e0c;
  --serif: "Fraunces", Georgia, "Times New Roman", serif;
  --sans: "Source Sans 3", system-ui, sans-serif;
  --mono: "IBM Plex Mono", ui-monospace, monospace;
  color-scheme: dark;
}

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

html {
  background: var(--bg);
}

body {
  margin: 0;
  min-height: 100%;
  background:
    radial-gradient(ellipse 55% 42% at 50% 16%, rgba(228, 87, 46, 0.16), transparent 62%),
    radial-gradient(ellipse 80% 48% at 50% 100%, rgba(232, 192, 122, 0.06), transparent 55%),
    var(--bg);
  color: var(--ink);
  font-family: var(--sans);
  font-size: 1.125rem;
  line-height: 1.5;
  padding:
    env(safe-area-inset-top)
    env(safe-area-inset-right)
    env(safe-area-inset-bottom)
    env(safe-area-inset-left);
}

body,
main,
.panel,
input,
button {
  max-width: 100%;
}

::selection {
  background: var(--accent);
  color: var(--chip-ink);
}

:focus-visible {
  outline: 2px solid var(--accent-2);
  outline-offset: 3px;
}

.skip {
  position: absolute;
  left: 12px;
  top: -48px;
  z-index: 2;
  background: var(--accent);
  color: var(--chip-ink);
  padding: 10px 14px;
  text-decoration: none;
  font-weight: 600;
}

.skip:focus {
  top: calc(12px + env(safe-area-inset-top));
}

main {
  width: min(680px, 100%);
  margin: 0 auto;
  padding: 20px 20px 48px;
}

h1,
h2,
h3 {
  font-family: var(--serif);
  font-weight: 560;
  font-optical-sizing: auto;
  letter-spacing: -0.03em;
  line-height: 0.95;
  margin: 0;
}

h1 {
  font-size: clamp(3.4rem, 16vw, 5.6rem);
}

h2 {
  font-size: clamp(1.8rem, 6vw, 2.35rem);
  margin-bottom: 0.75rem;
}

h3 {
  font-size: 1.35rem;
  line-height: 1.15;
  margin-bottom: 0.4rem;
}

p {
  margin: 0 0 1rem;
}

.mast {
  padding-top: 8px;
  border-top: 3px solid var(--accent);
}

.version,
.eyebrow,
.caption,
.colophon,
figcaption,
.fig-label,
.kicker {
  font-family: var(--mono);
}

.version {
  margin: 0.85rem 0 0;
  color: var(--muted);
  font-size: 0.78rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}

.portrait-wrap {
  margin: 1.75rem auto 0.25rem;
  width: 220px;
  max-width: 100%;
}

.portrait {
  display: block;
  width: 100%;
  height: auto;
  overflow: visible;
}

.reg {
  fill: none;
  stroke: var(--accent);
  stroke-width: 1.4px;
  stroke-linecap: square;
  vector-effect: non-scaling-stroke;
}

.grid {
  fill: none;
  stroke: #3a342c;
  stroke-width: 1px;
  vector-effect: non-scaling-stroke;
}

.center {
  stroke-dasharray: 9 5 1.5 5;
}

.faint {
  opacity: 0.55;
}

.ink {
  fill: none;
  stroke: var(--ink);
  stroke-width: 1.8px;
  stroke-linecap: round;
  stroke-linejoin: round;
  vector-effect: non-scaling-stroke;
}

.draw {
  stroke-dasharray: 1;
  stroke-dashoffset: 1;
  animation: draw 1.05s ease forwards;
  animation-delay: var(--delay, 0s);
}

.iris {
  fill: none;
  stroke: var(--accent-2);
  stroke-width: 1.2px;
  vector-effect: non-scaling-stroke;
  opacity: 0;
  animation: fade 0.35s ease 1.15s forwards;
}

.pupil circle {
  fill: var(--accent);
}

.pupil .catch {
  fill: var(--ink);
}

.pupil {
  opacity: 0;
  animation: fade 0.35s ease 1.2s forwards;
}

.fig-label {
  fill: var(--muted);
  font-size: 11px;
  letter-spacing: 1.6px;
}

figcaption {
  margin-top: 0.65rem;
  color: var(--muted);
  font-size: 0.72rem;
  letter-spacing: 0.04em;
  text-align: center;
  line-height: 1.4;
}

.intro {
  margin-top: 1.75rem;
  font-size: 1.2rem;
  line-height: 1.45;
}

.eyebrow {
  margin: 0 0 0.45rem;
  color: var(--accent-2);
  font-size: 0.72rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
}

section {
  margin-top: 3.25rem;
}

.panel {
  background: var(--bg-raise);
  border: 1px solid var(--line);
  border-top: 2px solid var(--accent);
  padding: 1.15rem 1rem 1.25rem;
  margin-top: 2.4rem;
}

.lead {
  color: var(--ink);
}

form,
.challenge-field {
  display: grid;
  gap: 12px;
}

.field {
  display: grid;
  gap: 8px;
}

label,
legend {
  font-family: var(--mono);
  font-size: 0.75rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--muted);
}

fieldset {
  border: 0;
  margin: 4px 0 0;
  padding: 0;
  min-inline-size: 0;
  display: grid;
  gap: 8px;
}

.chips {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.chip,
button {
  font: inherit;
  cursor: pointer;
}

.chip {
  min-height: 44px;
  padding: 0 14px;
  border: 1px solid var(--line);
  border-radius: 2px;
  background: transparent;
  color: var(--ink);
  font-size: 1rem;
}

.chip[aria-pressed="true"] {
  background: var(--accent);
  border-color: var(--accent);
  color: var(--chip-ink);
  font-weight: 600;
}

.chip[aria-pressed="true"]::before {
  content: "";
  display: inline-block;
  width: 6px;
  height: 6px;
  margin-right: 8px;
  background: currentColor;
  vertical-align: 1px;
}

input {
  width: 100%;
  min-height: 48px;
  padding: 12px;
  border: 1px solid var(--line);
  border-radius: 2px;
  background: var(--bg);
  color: var(--ink);
  font: inherit;
  font-size: 1rem;
}

button[type="submit"],
#challenge-btn {
  min-height: 48px;
  border: 0;
  border-radius: 2px;
  background: var(--accent);
  color: var(--chip-ink);
  font-weight: 600;
  font-size: 1rem;
}

button:disabled {
  opacity: 0.4;
  cursor: not-allowed;
}

.hint,
.caption {
  color: var(--muted);
  font-size: 0.95rem;
  line-height: 1.45;
}

.caption {
  font-family: var(--mono);
  font-size: 0.78rem;
  letter-spacing: 0.01em;
  margin-top: 0.9rem;
}

.out {
  overflow-wrap: anywhere;
}

.trace {
  list-style: none;
  margin: 1.1rem 0 0.4rem;
  padding: 0;
  display: grid;
  gap: 14px;
}

.trace li {
  border-top: 1px solid var(--line);
  padding-top: 12px;
  opacity: 0;
  transform: translateY(6px);
}

.trace li.in {
  opacity: 1;
  transform: none;
  transition: opacity 180ms ease, transform 180ms ease;
}

.kicker {
  margin: 0 0 0.35rem;
  color: var(--accent-2);
  font-size: 0.72rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}

.trace p {
  margin: 0 0 0.55rem;
  font-family: var(--mono);
  font-size: 0.95rem;
  line-height: 1.45;
}

.challenge-field {
  margin-top: 1.25rem;
}

.cares {
  display: grid;
  gap: 1.35rem;
}

.cares article {
  border-top: 1px solid var(--line);
  padding-top: 0.9rem;
}

.colophon {
  margin-top: 3.5rem;
  padding-top: 1rem;
  border-top: 1px solid var(--line);
  color: var(--muted);
  font-size: 0.75rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

@keyframes draw {
  to {
    stroke-dashoffset: 0;
  }
}

@keyframes fade {
  to {
    opacity: 1;
  }
}

@media (min-width: 720px) {
  main {
    padding: 32px 32px 72px;
  }

  .portrait-wrap {
    width: 280px;
    margin-top: 2rem;
  }

  .panel {
    padding: 1.5rem 1.4rem 1.6rem;
  }
}

@media (prefers-reduced-motion: reduce) {
  .draw {
    animation: none;
    stroke-dashoffset: 0;
  }

  .iris,
  .pupil {
    animation: none;
    opacity: 1;
  }

  .trace li {
    opacity: 1;
    transform: none;
  }
}