@import url("https://fonts.googleapis.com/css2?family=Atkinson+Hyperlegible:wght@400;700&family=Space+Grotesk:wght@500;600;700&display=swap");

:root {
  --colour-midnight-950: #0b1226;
  --colour-midnight-900: #121d38;
  --colour-midnight-700: #26385a;
  --colour-paper-50: #fff8e8;
  --colour-paper-200: #f1e6c9;
  --colour-ink-950: #172033;
  --colour-arcade-yellow-400: #f5c542;
  --colour-arcade-yellow-hover: #ffd96a;
  --colour-arcade-yellow-active: #d9a928;
  --colour-cyan-400: #39c6d8;
  --colour-magenta-400: #c45a91;
  --colour-green-400: #72b56a;
  --colour-orange-400: #e8873b;
  --colour-white: #ffffff;

  --font-heading: "Space Grotesk", system-ui, sans-serif;
  --font-body: "Atkinson Hyperlegible", system-ui, sans-serif;

  --space-1: 0.25rem;
  --space-2: 0.5rem;
  --space-3: 0.75rem;
  --space-4: 1rem;
  --space-5: 1.5rem;
  --space-6: 2rem;
  --space-7: 3rem;
  --space-8: 4rem;
  --space-9: 5rem;
  --space-10: 6rem;

  --container-width: 73.75rem;
  --reading-width: 45rem;
  --gutter: 1.5rem;

  --radius-label: 0.125rem;
  --radius-control: 0.25rem;
  --radius-panel: 0.5rem;

  --border-light: 1px solid var(--colour-paper-200);
  --border-dark: 1px solid var(--colour-midnight-700);

  --shadow-floating: 0 6px 20px rgba(5, 10, 24, 0.18);

  --transition-fast: 160ms ease;
  --focus-ring: 0 0 0 3px var(--colour-cyan-400);
}

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

html {
  min-width: 320px;
  scroll-behavior: smooth;
  text-size-adjust: 100%;
}

body {
  min-width: 320px;
  min-height: 100vh;
  margin: 0;
  overflow-x: hidden;
  background: var(--colour-paper-50);
  color: var(--colour-ink-950);
  font-family: var(--font-body);
  font-size: 1rem;
  line-height: 1.625;
  text-rendering: optimizeLegibility;
}

main,
header,
footer,
section,
article,
aside,
nav,
figure,
form {
  min-width: 0;
}

img,
picture,
svg,
video,
canvas,
audio,
iframe,
embed,
object {
  display: block;
  max-width: 100%;
}

img,
video {
  height: auto;
}

img {
  font-style: italic;
}

svg {
  fill: currentColor;
}

button,
input,
select,
textarea {
  max-width: 100%;
  color: inherit;
  font: inherit;
}

button,
select {
  cursor: pointer;
}

textarea {
  min-height: 8rem;
  resize: vertical;
}

button,
input,
select,
textarea {
  border-radius: var(--radius-control);
}

button:disabled,
input:disabled,
select:disabled,
textarea:disabled {
  cursor: not-allowed;
  opacity: 0.6;
}

a {
  color: #087f90;
  text-decoration-color: currentColor;
  text-decoration-thickness: 1px;
  text-underline-offset: 0.16em;
}

a:hover {
  color: var(--colour-midnight-950);
  text-decoration-thickness: 2px;
}

a:focus-visible,
button:focus-visible,
input:focus-visible,
select:focus-visible,
textarea:focus-visible,
summary:focus-visible {
  outline: 3px solid var(--colour-cyan-400);
  outline-offset: 2px;
}

::selection {
  background: var(--colour-arcade-yellow-400);
  color: var(--colour-midnight-950);
}

h1,
h2,
h3,
h4,
h5,
h6 {
  margin-block: 0 1rem;
  color: var(--colour-ink-950);
  font-family: var(--font-heading);
  font-weight: 700;
  letter-spacing: -0.025em;
  line-height: 1.1;
  overflow-wrap: break-word;
}

h1 {
  font-size: clamp(2.25rem, 5vw, 3.5rem);
  line-height: 1.04;
}

h2 {
  font-size: clamp(2rem, 3.5vw, 2.75rem);
  line-height: 1.09;
}

h3 {
  font-size: clamp(1.5rem, 2.6vw, 2rem);
  line-height: 1.18;
}

h4 {
  font-size: 1.5rem;
  line-height: 1.25;
}

h5 {
  font-size: 1.125rem;
  line-height: 1.3;
}

h6 {
  font-size: 1rem;
  line-height: 1.35;
}

p {
  margin-block: 0 1rem;
  line-height: 1.625;
}

ul,
ol {
  margin-block: 0 1rem;
  padding-inline-start: 1.4rem;
}

li > ul,
li > ol {
  margin-block: 0;
}

dl {
  margin-block: 0 1rem;
}

dt {
  font-weight: 700;
}

dd {
  margin: 0 0 var(--space-3);
}

blockquote {
  margin: 0 0 var(--space-5);
  padding: var(--space-4) var(--space-5);
  border-inline-start: 4px solid var(--colour-arcade-yellow-400);
  background: var(--colour-paper-200);
  color: var(--colour-ink-950);
}

blockquote > :last-child,
figure > :last-child,
details > :last-child {
  margin-block-end: 0;
}

hr {
  height: 1px;
  margin-block: var(--space-6);
  border: 0;
  background: var(--colour-paper-200);
}

figure {
  margin: 0 0 var(--space-5);
}

figcaption {
  margin-block-start: var(--space-2);
  color: #4e596d;
  font-size: 0.875rem;
  line-height: 1.43;
}

small {
  font-size: 0.875em;
}

code,
kbd,
samp,
pre {
  font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
}

code,
kbd {
  padding: 0.1em 0.3em;
  border-radius: var(--radius-label);
  background: var(--colour-paper-200);
  color: var(--colour-midnight-950);
  font-size: 0.9em;
}

pre {
  margin: 0 0 var(--space-5);
  padding: var(--space-4);
  overflow: auto;
  border: var(--border-dark);
  border-radius: var(--radius-control);
  background: var(--colour-midnight-950);
  color: var(--colour-paper-50);
}

table {
  width: 100%;
  margin-block: 0 var(--space-5);
  border-collapse: collapse;
  border-spacing: 0;
  font-size: 0.9375rem;
}

th,
td {
  padding: var(--space-3);
  border-bottom: var(--border-light);
  text-align: start;
  vertical-align: top;
}

th {
  font-family: var(--font-heading);
  font-weight: 700;
}

caption {
  margin-block-end: var(--space-2);
  color: #4e596d;
  font-size: 0.875rem;
  text-align: start;
}

details {
  margin-block: 0 var(--space-4);
  padding: var(--space-4);
  border: var(--border-light);
  border-radius: var(--radius-control);
  background: var(--colour-paper-50);
}

summary {
  cursor: pointer;
  font-family: var(--font-heading);
  font-weight: 700;
}

label {
  display: inline-block;
  margin-block-end: var(--space-2);
  font-family: var(--font-heading);
  font-weight: 600;
  line-height: 1.3;
}

input,
select,
textarea {
  width: 100%;
  border: 1px solid #b9aa85;
  background: var(--colour-paper-50);
  padding: 0.6875rem 0.75rem;
  line-height: 1.4;
}

input::placeholder,
textarea::placeholder {
  color: #687084;
  opacity: 1;
}

input:hover,
select:hover,
textarea:hover {
  border-color: var(--colour-midnight-700);
}

input:focus,
select:focus,
textarea:focus {
  border-color: var(--colour-cyan-400);
  outline: none;
  box-shadow: var(--focus-ring);
}

fieldset {
  min-width: 0;
  margin: 0 0 var(--space-5);
  padding: var(--space-4);
  border: var(--border-light);
}

legend {
  padding-inline: var(--space-2);
  font-family: var(--font-heading);
  font-weight: 700;
}

.container {
  width: min(100% - (var(--gutter) * 2), var(--container-width));
  margin-inline: auto;
}

.reading-container {
  width: min(100% - (var(--gutter) * 2), var(--reading-width));
  margin-inline: auto;
}

.section {
  padding-block: clamp(var(--space-8), 8vw, var(--space-10));
}

.section--compact {
  padding-block: clamp(var(--space-5), 5vw, var(--space-7));
}

.surface-paper {
  background: var(--colour-paper-50);
  color: var(--colour-ink-950);
}

.surface-paper-alt {
  background: var(--colour-paper-200);
  color: var(--colour-ink-950);
}

.surface-midnight {
  background: var(--colour-midnight-950);
  color: var(--colour-paper-50);
}

.surface-midnight-raised {
  background: var(--colour-midnight-900);
  color: var(--colour-paper-50);
}

.surface-midnight :is(h1, h2, h3, h4, h5, h6),
.surface-midnight-raised :is(h1, h2, h3, h4, h5, h6) {
  color: var(--colour-white);
}

.surface-midnight a,
.surface-midnight-raised a {
  color: var(--colour-cyan-400);
}

.surface-midnight a:hover,
.surface-midnight-raised a:hover {
  color: var(--colour-white);
}

.eyebrow,
.route-label {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  margin: 0 0 var(--space-3);
  color: #4e596d;
  font-family: var(--font-heading);
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  line-height: 1.34;
  text-transform: uppercase;
}

.surface-midnight .eyebrow,
.surface-midnight .route-label,
.surface-midnight-raised .eyebrow,
.surface-midnight-raised .route-label {
  color: var(--colour-paper-200);
}

.lead {
  margin-block-end: var(--space-5);
  font-size: clamp(1.125rem, 2vw, 1.25rem);
  line-height: 1.56;
}

.card,
.panel {
  min-width: 0;
  padding: var(--space-5);
  border: var(--border-light);
  border-radius: var(--radius-control);
  background: var(--colour-paper-50);
  color: var(--colour-ink-950);
}

.card > :last-child,
.panel > :last-child,
.field-note > :last-child,
.waypoint > :last-child {
  margin-block-end: 0;
}

.map-panel {
  min-width: 0;
  padding: var(--space-5);
  border: var(--border-dark);
  border-radius: var(--radius-panel);
  background-color: var(--colour-midnight-900);
  background-image:
    linear-gradient(rgba(57, 198, 216, 0.08) 1px, transparent 1px),
    linear-gradient(90deg, rgba(57, 198, 216, 0.08) 1px, transparent 1px);
  background-size: 24px 24px;
  color: var(--colour-paper-50);
}

.map-panel :is(h1, h2, h3, h4, h5, h6) {
  color: var(--colour-white);
}

.map-panel a {
  color: var(--colour-cyan-400);
}

.field-note {
  min-width: 0;
  padding: var(--space-4);
  border-inline-start: 4px solid var(--colour-green-400);
  background: var(--colour-paper-200);
}

.waypoint {
  min-width: 0;
  padding: var(--space-5);
  border: 1px solid var(--colour-arcade-yellow-400);
  border-radius: var(--radius-control);
  background: var(--colour-paper-50);
}

.button,
.button-link {
  display: inline-flex;
  min-height: 2.75rem;
  max-width: 100%;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  border: 1px solid transparent;
  border-radius: var(--radius-control);
  padding: 0.625rem 1rem;
  font-family: var(--font-heading);
  font-size: 0.875rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  line-height: 1.2;
  text-align: center;
  text-decoration: none;
  text-transform: uppercase;
  transition:
    background-color var(--transition-fast),
    border-color var(--transition-fast),
    color var(--transition-fast),
    transform var(--transition-fast);
}

.button--primary,
.button-link--primary {
  border-color: var(--colour-arcade-yellow-400);
  background: var(--colour-arcade-yellow-400);
  color: var(--colour-midnight-950);
}

.button--primary:hover,
.button-link--primary:hover {
  border-color: var(--colour-arcade-yellow-hover);
  background: var(--colour-arcade-yellow-hover);
  color: var(--colour-midnight-950);
  text-decoration: none;
}

.button--primary:active,
.button-link--primary:active {
  border-color: var(--colour-arcade-yellow-active);
  background: var(--colour-arcade-yellow-active);
  color: var(--colour-midnight-950);
  transform: translateY(2px);
}

.button--secondary,
.button-link--secondary {
  border-color: var(--colour-cyan-400);
  background: transparent;
  color: var(--colour-cyan-400);
}

.button--secondary:hover,
.button-link--secondary:hover {
  background: var(--colour-cyan-400);
  color: var(--colour-midnight-950);
  text-decoration: none;
}

.button--paper,
.button-link--paper {
  border-color: var(--colour-paper-200);
  background: transparent;
  color: var(--colour-paper-50);
}

.button--paper:hover,
.button-link--paper:hover {
  background: var(--colour-paper-200);
  color: var(--colour-midnight-950);
  text-decoration: none;
}

.button-group {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-3);
  min-width: 0;
}

.button-group > * {
  min-width: 0;
}

.route-marker {
  display: inline-flex;
  max-width: 100%;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-1) var(--space-2);
  border-radius: var(--radius-label);
  background: var(--marker-colour, var(--colour-cyan-400));
  color: var(--colour-midnight-950);
  font-family: var(--font-heading);
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  line-height: 1.34;
  text-transform: uppercase;
}

.route-marker--platform {
  --marker-colour: var(--colour-orange-400);
}

.route-marker--shooter {
  --marker-colour: var(--colour-magenta-400);
  color: var(--colour-white);
}

.route-marker--puzzle {
  --marker-colour: var(--colour-green-400);
}

.route-marker--arcade {
  --marker-colour: var(--colour-cyan-400);
}

.route-marker--new {
  --marker-colour: var(--colour-arcade-yellow-400);
}

.route-marker--active {
  --marker-colour: var(--colour-arcade-yellow-400);
}

.visually-hidden {
  position: absolute;
  width: 1px;
  height: 1px;
  margin: -1px;
  overflow: hidden;
  clip: rect(0 0 0 0);
  clip-path: inset(50%);
  white-space: nowrap;
}

.skip-link {
  position: fixed;
  z-index: 1000;
  top: var(--space-2);
  left: var(--space-2);
  padding: var(--space-3) var(--space-4);
  transform: translateY(-200%);
  border-radius: var(--radius-control);
  background: var(--colour-arcade-yellow-400);
  color: var(--colour-midnight-950);
  font-family: var(--font-heading);
  font-weight: 700;
  text-decoration: none;
}

.skip-link:focus {
  transform: translateY(0);
}

.status-success,
.status-error {
  margin-block: 0 var(--space-4);
  padding: var(--space-3) var(--space-4);
  border-inline-start: 4px solid currentColor;
  background: var(--colour-paper-200);
}

.status-success {
  color: #356d31;
}

.status-error {
  color: #9b4b16;
}

@media (max-width: 699px) {
  :root {
    --gutter: 1rem;
  }

  h1 {
    font-size: clamp(2.25rem, 10vw, 2.5rem);
  }

  h2 {
    font-size: clamp(1.875rem, 8vw, 2.25rem);
  }

  h3 {
    font-size: 1.5rem;
  }

  .card,
  .panel,
  .map-panel,
  .waypoint {
    padding: var(--space-4);
  }

  .button,
  .button-link {
    min-height: 2.75rem;
  }

  .button-group > .button,
  .button-group > .button-link {
    flex: 1 1 100%;
  }
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }

  *,
  *::before,
  *::after {
    animation-duration: 0.01ms;
    animation-iteration-count: 1;
    scroll-behavior: auto;
    transition-duration: 0.01ms;
  }
}