:root {
  --color-night-navy: #10152f;
  --color-deep-navy: #171e43;
  --color-ink-blue: #202957;
  --color-paper-light: #f4f7ff;
  --color-muted-blue: #b9c3e5;
  --color-neon-lime: #c7f34a;
  --color-pixel-turquoise: #38d6c3;
  --color-coral-orange: #ff7657;
  --color-lavender-purple: #9b82f3;
  --color-pixel-line: #354170;
  --color-light-line: #d8dff5;
  --color-shadow: #080b1d;
  --color-danger: #ff7657;
  --color-success: #c7f34a;

  --font-heading: "Space Grotesk", sans-serif;
  --font-body: "Inter", sans-serif;

  --font-size-12: 0.75rem;
  --font-size-14: 0.875rem;
  --font-size-16: 1rem;
  --font-size-18: 1.125rem;
  --font-size-24: 1.5rem;
  --font-size-32: 2rem;
  --font-size-44: 2.75rem;
  --font-size-64: 4rem;

  --line-height-tight: 1.05;
  --line-height-heading: 1.125;
  --line-height-body: 1.5625;
  --line-height-relaxed: 1.7;

  --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: 7rem;

  --container-max: 75rem;
  --container-article: 45rem;
  --container-padding: 1rem;
  --section-space: clamp(2.5rem, 6vw, 6rem);

  --radius-pixel: 0.125rem;
  --radius-control: 0.375rem;
  --radius-card: 0.625rem;
  --radius-panel: 1rem;

  --border-dark: 1px solid var(--color-pixel-line);
  --border-light: 1px solid var(--color-light-line);
  --shadow-block: 0 4px 0 var(--color-shadow);

  --transition-fast: 180ms ease;
  --focus-outline: 3px solid var(--color-neon-lime);
  --focus-offset: 2px;

  color-scheme: dark;
}

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

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

body {
  min-width: 320px;
  min-height: 100vh;
  margin: 0;
  overflow-x: clip;
  background: var(--color-night-navy);
  color: var(--color-paper-light);
  font-family: var(--font-body);
  font-size: var(--font-size-16);
  font-weight: 400;
  line-height: var(--line-height-body);
  text-rendering: optimizeLegibility;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

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

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

img,
video {
  height: auto;
}

svg {
  fill: currentColor;
}

iframe {
  border: 0;
}

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

button,
select {
  text-transform: none;
}

button,
[type="button"],
[type="reset"],
[type="submit"],
summary {
  cursor: pointer;
}

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

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

table {
  width: 100%;
  border-collapse: collapse;
  border-spacing: 0;
}

a {
  color: var(--color-pixel-turquoise);
  text-decoration-color: currentColor;
  text-decoration-thickness: 1px;
  text-underline-offset: 0.18em;
  transition:
    color var(--transition-fast),
    text-decoration-thickness var(--transition-fast);
}

a:hover {
  color: var(--color-neon-lime);
  text-decoration-thickness: 2px;
}

a:focus-visible,
button:focus-visible,
input:focus-visible,
select:focus-visible,
textarea:focus-visible,
summary:focus-visible,
[tabindex]:focus-visible {
  outline: var(--focus-outline);
  outline-offset: var(--focus-offset);
}

::selection {
  background: var(--color-neon-lime);
  color: var(--color-night-navy);
}

:target {
  scroll-margin-top: var(--space-8);
}

h1,
h2,
h3,
h4,
h5,
h6 {
  margin: 0 0 var(--space-4);
  color: inherit;
  font-family: var(--font-heading);
  font-weight: 800;
  letter-spacing: 0.01em;
  line-height: var(--line-height-heading);
  overflow-wrap: anywhere;
}

h1 {
  font-size: clamp(2.25rem, 6vw, 4rem);
  line-height: 1.03;
}

h2 {
  font-size: clamp(1.75rem, 4vw, 2.75rem);
}

h3 {
  font-size: clamp(1.5rem, 3vw, 2rem);
  line-height: 1.15;
}

h4 {
  font-size: clamp(1.25rem, 2.5vw, 1.5rem);
  line-height: 1.2;
}

h5 {
  font-size: 1.125rem;
  line-height: 1.25;
}

h6 {
  font-size: 1rem;
  line-height: 1.3;
}

p {
  margin: 0 0 var(--space-5);
  line-height: var(--line-height-body);
  overflow-wrap: break-word;
}

ul,
ol {
  margin: 0 0 var(--space-5);
  padding-inline-start: 1.35em;
}

li::marker {
  color: var(--color-neon-lime);
}

blockquote {
  margin: 0 0 var(--space-5);
  padding: var(--space-4) var(--space-5);
  border-inline-start: 4px solid var(--color-neon-lime);
  background: var(--color-deep-navy);
  color: var(--color-paper-light);
}

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

hr {
  height: 1px;
  margin: var(--space-6) 0;
  border: 0;
  background: var(--color-pixel-line);
}

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

code {
  padding: 0.1em 0.3em;
  border-radius: var(--radius-pixel);
  background: var(--color-deep-navy);
  color: var(--color-neon-lime);
  font-size: 0.9em;
}

pre {
  max-width: 100%;
  margin: 0 0 var(--space-5);
  padding: var(--space-4);
  overflow: auto;
  border: var(--border-dark);
  border-radius: var(--radius-control);
  background: var(--color-deep-navy);
  color: var(--color-paper-light);
}

pre code {
  padding: 0;
  background: transparent;
  color: inherit;
}

small {
  font-size: var(--font-size-12);
  line-height: 1.333;
}

strong,
b {
  font-weight: 700;
}

mark {
  padding: 0.08em 0.2em;
  background: var(--color-neon-lime);
  color: var(--color-night-navy);
}

sub,
sup {
  font-size: 0.75em;
}

fieldset {
  margin: 0 0 var(--space-5);
  padding: var(--space-5);
  border: var(--border-dark);
  border-radius: var(--radius-card);
}

legend {
  padding: 0 var(--space-2);
  font-family: var(--font-heading);
  font-weight: 700;
}

label {
  display: inline-block;
  margin-bottom: var(--space-2);
  font-weight: 600;
}

input,
select,
textarea {
  width: 100%;
  border: var(--border-dark);
  border-radius: var(--radius-control);
  background: var(--color-ink-blue);
  color: var(--color-paper-light);
  line-height: 1.4;
}

input,
select {
  min-height: 2.75rem;
  padding: 0.625rem 0.75rem;
}

textarea {
  padding: 0.75rem;
}

input::placeholder,
textarea::placeholder {
  color: var(--color-muted-blue);
  opacity: 1;
}

input[type="checkbox"],
input[type="radio"] {
  width: 1.125rem;
  min-height: 1.125rem;
  margin: 0;
  accent-color: var(--color-neon-lime);
}

input[type="file"] {
  padding: var(--space-2);
}

input[type="color"] {
  min-height: 2.75rem;
  padding: 0.25rem;
}

input:invalid:not(:placeholder-shown),
textarea:invalid:not(:placeholder-shown),
select:invalid {
  border-color: var(--color-coral-orange);
}

input:focus,
select:focus,
textarea:focus {
  border-color: var(--color-pixel-turquoise);
}

button,
.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 0;
  min-height: 2.75rem;
  padding: 0.6875rem 1rem;
  border: 1px solid transparent;
  border-radius: var(--radius-control);
  background: var(--color-neon-lime);
  color: var(--color-night-navy);
  font-family: var(--font-heading);
  font-size: var(--font-size-14);
  font-weight: 800;
  letter-spacing: 0.08em;
  line-height: 1.2;
  text-align: center;
  text-decoration: none;
  text-transform: uppercase;
  overflow-wrap: anywhere;
  transition:
    transform var(--transition-fast),
    box-shadow var(--transition-fast),
    background-color var(--transition-fast),
    color var(--transition-fast),
    border-color var(--transition-fast);
}

button:hover,
.button:hover {
  box-shadow: var(--shadow-block);
  color: var(--color-night-navy);
  text-decoration: none;
  transform: translateY(-2px);
}

button:active,
.button:active {
  box-shadow: none;
  transform: translateY(0);
}

.button--secondary {
  border-color: var(--color-coral-orange);
  background: var(--color-coral-orange);
}

.button--turquoise {
  border-color: var(--color-pixel-turquoise);
  background: var(--color-pixel-turquoise);
}

.button--outline {
  border-color: var(--color-pixel-turquoise);
  background: transparent;
  color: var(--color-pixel-turquoise);
}

.button--outline:hover {
  border-color: var(--color-neon-lime);
  background: var(--color-neon-lime);
  color: var(--color-night-navy);
}

.button--full {
  width: 100%;
}

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

.container--article {
  max-width: var(--container-article);
}

.section {
  padding-block: var(--section-space);
}

.surface-dark {
  background: var(--color-night-navy);
  color: var(--color-paper-light);
}

.surface-deep {
  background: var(--color-deep-navy);
  color: var(--color-paper-light);
}

.surface-ink {
  background: var(--color-ink-blue);
  color: var(--color-paper-light);
}

.surface-light {
  background: var(--color-paper-light);
  color: var(--color-night-navy);
  color-scheme: light;
}

.surface-light a {
  color: #126f6a;
}

.surface-light a:hover {
  color: #526d00;
}

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

.panel {
  border-radius: var(--radius-panel);
}

.card--light,
.panel--light {
  border: var(--border-light);
  background: var(--color-paper-light);
  color: var(--color-night-navy);
}

.card--featured,
.panel--featured {
  box-shadow: var(--shadow-block);
}

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

.flow > * + * {
  margin-block-start: var(--space-4);
}

.flow > h1 + *,
.flow > h2 + *,
.flow > h3 + *,
.flow > h4 + * {
  margin-block-start: 0;
}

.content-list {
  display: grid;
  gap: var(--space-3);
  margin: 0 0 var(--space-5);
  padding: 0;
  list-style: none;
}

.content-list > li {
  min-width: 0;
}

.stack {
  display: flex;
  min-width: 0;
  flex-direction: column;
  gap: var(--space-4);
}

.cluster {
  display: flex;
  min-width: 0;
  flex-wrap: wrap;
  align-items: center;
  gap: var(--space-3);
}

.cluster > * {
  min-width: 0;
}

.cluster--tight {
  gap: var(--space-2);
}

.cluster--spread {
  justify-content: space-between;
}

.tag,
.eyebrow {
  display: inline-flex;
  align-items: center;
  min-height: 1.5rem;
  max-width: 100%;
  padding: 0.25rem 0.5rem;
  border-radius: var(--radius-pixel);
  background: var(--color-lavender-purple);
  color: var(--color-night-navy);
  font-family: var(--font-heading);
  font-size: var(--font-size-12);
  font-weight: 800;
  letter-spacing: 0.08em;
  line-height: 1.2;
  text-transform: uppercase;
  overflow-wrap: anywhere;
}

.tag--lime {
  background: var(--color-neon-lime);
}

.tag--turquoise {
  background: var(--color-pixel-turquoise);
}

.tag--coral {
  background: var(--color-coral-orange);
}

.meta {
  color: var(--color-muted-blue);
  font-size: var(--font-size-14);
  line-height: 1.43;
}

.surface-light .meta,
.card--light .meta,
.panel--light .meta {
  color: #4e5a82;
}

.notice {
  min-width: 0;
  margin: 0 0 var(--space-5);
  padding: var(--space-4);
  border: var(--border-dark);
  border-inline-start: 4px solid var(--color-pixel-turquoise);
  border-radius: var(--radius-control);
  background: var(--color-deep-navy);
}

.notice--warning {
  border-inline-start-color: var(--color-coral-orange);
}

.notice--success {
  border-inline-start-color: var(--color-neon-lime);
}

.notice--purple {
  border-inline-start-color: var(--color-lavender-purple);
}

.notice > :last-child {
  margin-block-end: 0;
}

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

.skip-link {
  position: fixed;
  z-index: 1000;
  top: var(--space-3);
  left: var(--space-3);
  padding: var(--space-3) var(--space-4);
  border-radius: var(--radius-control);
  background: var(--color-neon-lime);
  color: var(--color-night-navy);
  font-family: var(--font-heading);
  font-weight: 800;
  text-decoration: none;
  transform: translateY(-200%);
}

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

@media (min-width: 48rem) {
  :root {
    --container-padding: 1.5rem;
  }

  .section {
    padding-block: clamp(4rem, 8vw, 6rem);
  }

  .card,
  .panel {
    padding: var(--space-6);
  }
}

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

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