:root {
  --color-ink: #090a08;
  --color-ink-raised: #141713;
  --color-line: #394036;
  --color-ivory: #f2f0e8;
  --color-acid: #b7f000;
  --color-yellow: #ffd21a;
  --color-muted: #a9b0a1;
  --color-danger: #ff6b4a;

  --font-body: "IBM Plex Sans", Arial, sans-serif;
  --font-heading: "Space Grotesk", "IBM Plex Sans", Arial, sans-serif;

  --text-body: 1rem;
  --text-meta: 0.8125rem;
  --text-label: 0.6875rem;
  --text-lead: clamp(1.125rem, 1.5vw, 1.25rem);

  --leading-body: 1.5;
  --leading-tight: 1.05;
  --leading-display: 0.92;

  --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: 4.5rem;
  --space-9: 6rem;

  --container-max: 77.5rem;
  --container-padding: 2rem;
  --reading-measure: 42.5rem;
  --intro-measure: 32.5rem;

  --radius-none: 0;
  --radius-control: 0.125rem;
  --radius-panel: 0.25rem;

  --border-line: 1px solid var(--color-line);
  --border-acid: 1px solid var(--color-acid);
  --border-yellow: 1px solid var(--color-yellow);

  --shadow-elevated: 0 0.75rem 2rem rgba(0, 0, 0, 0.35);
  --overlay: rgba(0, 0, 0, 0.78);

  --transition-fast: 160ms ease;
  --transition-standard: 220ms ease;
}

@media (max-width: 1199px) {
  :root {
    --container-padding: 1.5rem;
  }
}

@media (max-width: 767px) {
  :root {
    --container-padding: 1.125rem;
  }
}

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

html {
  min-width: 0;
  scroll-behavior: smooth;
  background: var(--color-ink);
  color-scheme: dark;
}

body {
  min-width: 0;
  min-height: 100vh;
  margin: 0;
  overflow-x: hidden;
  background: var(--color-ink);
  color: var(--color-ivory);
  font-family: var(--font-body);
  font-size: var(--text-body);
  font-weight: 400;
  line-height: var(--leading-body);
  text-rendering: optimizeLegibility;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body.menu-open,
body.modal-open {
  overflow: hidden;
}

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

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

img,
video {
  height: auto;
}

iframe {
  border: 0;
}

a {
  color: inherit;
  text-decoration: none;
  text-decoration-thickness: 1px;
  text-underline-offset: 0.2em;
}

a:not([class]) {
  color: var(--color-acid);
  text-decoration-line: underline;
}

a:not([class]):hover {
  color: var(--color-yellow);
}

button,
input,
select,
textarea {
  margin: 0;
  color: inherit;
  font: inherit;
}

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

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

input,
select,
textarea {
  width: 100%;
  border: var(--border-line);
  border-radius: var(--radius-control);
  background: var(--color-ink-raised);
  color: var(--color-ivory);
}

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

textarea {
  min-height: 8rem;
  resize: vertical;
  padding: 0.75rem;
}

select {
  appearance: none;
  background-image: linear-gradient(45deg, transparent 50%, var(--color-ivory) 50%),
    linear-gradient(135deg, var(--color-ivory) 50%, transparent 50%);
  background-position: calc(100% - 1rem) 50%, calc(100% - 0.7rem) 50%;
  background-repeat: no-repeat;
  background-size: 0.3rem 0.3rem, 0.3rem 0.3rem;
  padding-right: 2.5rem;
}

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

input:focus,
select:focus,
textarea:focus {
  border-color: var(--color-acid);
  outline: 2px solid var(--color-acid);
  outline-offset: 3px;
}

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

label {
  display: inline-block;
  margin-block-end: var(--space-2);
  color: var(--color-ivory);
  font-size: var(--text-meta);
  font-weight: 600;
  line-height: 1.3;
}

fieldset {
  min-width: 0;
  margin: 0;
  padding: 0;
  border: 0;
}

legend {
  margin-block-end: var(--space-2);
  padding: 0;
  color: var(--color-ivory);
  font-size: var(--text-meta);
  font-weight: 600;
}

table {
  width: 100%;
  border-collapse: collapse;
  border-spacing: 0;
  font-variant-numeric: tabular-nums;
}

th,
td {
  padding: var(--space-3) var(--space-4);
  border-bottom: var(--border-line);
  text-align: left;
  vertical-align: top;
}

th {
  color: var(--color-acid);
  font-size: var(--text-label);
  font-weight: 700;
  letter-spacing: 0.14em;
  line-height: 1.1;
  text-transform: uppercase;
}

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

h1,
h2,
h3,
h4,
h5,
h6 {
  margin-block-start: 0;
  margin-block-end: var(--space-4);
  color: var(--color-ivory);
  font-family: var(--font-heading);
  font-weight: 750;
  line-height: var(--leading-tight);
  letter-spacing: -0.03em;
  text-wrap: balance;
}

h1 {
  font-size: clamp(2.5rem, 5.5vw, 4.75rem);
  font-weight: 800;
  line-height: 0.96;
  letter-spacing: -0.045em;
}

h2 {
  font-size: clamp(1.875rem, 3.5vw, 3.25rem);
  line-height: 1;
  letter-spacing: -0.035em;
}

h3 {
  font-size: clamp(1.375rem, 2vw, 1.875rem);
  font-weight: 700;
  line-height: 1.05;
  letter-spacing: -0.025em;
}

h4 {
  font-size: 1.125rem;
}

h5,
h6 {
  font-size: 1rem;
}

p {
  margin-block-start: 0;
  margin-block-end: var(--space-4);
}

ul,
ol {
  margin-block-start: 0;
  margin-block-end: var(--space-4);
  padding-inline-start: 1.25rem;
}

ul {
  list-style: none !important;
  padding-inline-start: 0;
}

ol {
  list-style: decimal;
}

blockquote {
  margin: 0 0 var(--space-5);
  padding: var(--space-4) 0 var(--space-4) var(--space-5);
  border-inline-start: var(--border-acid);
  color: var(--color-ivory);
  font-family: var(--font-heading);
  font-size: clamp(1.25rem, 2vw, 1.75rem);
  font-weight: 600;
  line-height: 1.2;
}

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

figcaption {
  margin-block-start: var(--space-2);
  color: var(--color-muted);
  font-size: var(--text-meta);
  line-height: 1.35;
}

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

dt {
  color: var(--color-acid);
  font-size: var(--text-label);
  font-weight: 700;
  letter-spacing: 0.14em;
  line-height: 1.1;
  text-transform: uppercase;
}

dd {
  margin: var(--space-1) 0 var(--space-3);
}

small {
  font-size: 0.8125em;
}

strong,
b {
  font-weight: 700;
}

em,
i {
  font-style: italic;
}

mark {
  background: var(--color-yellow);
  color: var(--color-ink);
}

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

code,
kbd {
  padding: 0.1em 0.3em;
  border: 1px solid var(--color-line);
  background: var(--color-ink-raised);
  color: var(--color-acid);
}

pre {
  overflow-x: auto;
  margin: 0 0 var(--space-5);
  padding: var(--space-4);
  border: var(--border-line);
  background: var(--color-ink-raised);
}

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

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

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

.section {
  padding-block: var(--space-9);
}

.section--compact {
  padding-block: var(--space-8);
}

.surface {
  background: var(--color-ink-raised);
}

.panel {
  padding: var(--space-5);
  border: var(--border-line);
  background: var(--color-ink-raised);
}

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

.card {
  padding: var(--space-5);
  border: var(--border-line);
  background: var(--color-ink-raised);
}

.frame {
  overflow: hidden;
  border: var(--border-line);
  background: var(--color-ink);
}

.frame--acid {
  border-color: var(--color-acid);
}

.frame--yellow {
  border-color: var(--color-yellow);
}

.frame--clipped {
  clip-path: polygon(0 0, calc(100% - 0.5rem) 0, 100% 0.5rem, 100% 100%, 0 100%);
}

.eyebrow,
.technical-label {
  margin: 0 0 var(--space-2);
  color: var(--color-acid);
  font-size: var(--text-label);
  font-weight: 700;
  letter-spacing: 0.14em;
  line-height: 1.1;
  text-transform: uppercase;
}

.meta {
  color: var(--color-muted);
  font-size: var(--text-meta);
  font-weight: 600;
  letter-spacing: 0.04em;
  line-height: 1.3;
}

.lead {
  color: var(--color-ivory);
  font-size: var(--text-lead);
  font-weight: 500;
  line-height: 1.35;
}

.muted {
  color: var(--color-muted);
}

.acid {
  color: var(--color-acid);
}

.yellow {
  color: var(--color-yellow);
}

.display {
  font-family: var(--font-heading);
  font-size: clamp(3rem, 7vw, 6.5rem);
  font-weight: 800;
  line-height: var(--leading-display);
  letter-spacing: -0.055em;
  text-wrap: balance;
}

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

.stack--compact {
  gap: var(--space-2);
}

.stack--loose {
  gap: var(--space-6);
}

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

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

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

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

.button,
.button-primary,
.button-secondary {
  display: inline-flex;
  min-height: 2.75rem;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  padding: 0.6875rem 1rem;
  border: 1px solid transparent;
  border-radius: var(--radius-control);
  font-family: var(--font-body);
  font-size: 0.875rem;
  font-weight: 700;
  letter-spacing: 0.02em;
  line-height: 1.2;
  text-align: center;
  transition: background-color var(--transition-fast), border-color var(--transition-fast), color var(--transition-fast);
}

.button,
.button-primary {
  border-color: var(--color-yellow);
  background: var(--color-yellow);
  color: var(--color-ink);
}

.button:hover,
.button-primary:hover {
  border-color: var(--color-acid);
  background: var(--color-acid);
  color: var(--color-ink);
}

.button-secondary {
  border-color: var(--color-ivory);
  background: transparent;
  color: var(--color-ivory);
}

.button-secondary:hover {
  border-color: var(--color-yellow);
  color: var(--color-yellow);
}

.text-link {
  display: inline;
  border-bottom: 1px solid currentColor;
  color: var(--color-acid);
  font-weight: 600;
  transition: border-color var(--transition-fast), color var(--transition-fast);
}

.text-link:hover {
  border-bottom-color: var(--color-yellow);
  color: var(--color-yellow);
}

.content-list {
  display: grid;
  gap: var(--space-3);
  margin-block-end: var(--space-4);
}

.content-list > li {
  position: relative;
  padding-inline-start: var(--space-4);
}

.content-list > li::before {
  position: absolute;
  inset-inline-start: 0;
  top: 0.65em;
  width: 0.375rem;
  height: 1px;
  background: var(--color-acid);
  content: "";
}

.nav-toggle {
  display: inline-flex;
  min-width: 2.75rem;
  min-height: 2.75rem;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 0.25rem;
  padding: 0.5rem;
  border: var(--border-line);
  border-radius: var(--radius-control);
  background: var(--color-ink);
  color: var(--color-ivory);
}

.nav-toggle:hover {
  border-color: var(--color-acid);
  color: var(--color-acid);
}

.nav-toggle span {
  display: block;
  width: 1.125rem;
  height: 1px;
  background: currentColor;
}

.notice-21 {
  position: fixed;
  z-index: 1000;
  right: var(--space-4);
  bottom: var(--space-4);
  width: min(25rem, calc(100vw - (var(--space-4) * 2)));
  padding: var(--space-4);
  border: var(--border-acid);
  border-radius: var(--radius-panel);
  background: var(--color-ink-raised);
  box-shadow: var(--shadow-elevated);
}

.notice-21__title {
  margin: 0 0 var(--space-2);
  color: var(--color-acid);
  font-size: var(--text-label);
  font-weight: 700;
  letter-spacing: 0.14em;
  line-height: 1.1;
  text-transform: uppercase;
}

.notice-21__text {
  margin: 0 0 var(--space-3);
  color: var(--color-ivory);
  font-size: 0.875rem;
  line-height: 1.4;
}

.notice-21__actions {
  display: flex;
  min-width: 0;
  flex-wrap: wrap;
  gap: var(--space-2);
}

.notice-21__actions > * {
  min-width: 0;
}

@media (max-width: 767px) {
  .section {
    padding-block: var(--space-8);
  }

  .section--compact {
    padding-block: var(--space-7);
  }

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

  .notice-21 {
    right: 0;
    bottom: 0;
    width: 100%;
    padding: var(--space-4) var(--container-padding) calc(var(--space-4) + env(safe-area-inset-bottom));
    border-right: 0;
    border-bottom: 0;
    border-left: 0;
    border-radius: var(--radius-panel) var(--radius-panel) 0 0;
  }

  .notice-21__actions {
    display: grid;
  }

  .notice-21__actions .button,
  .notice-21__actions .button-primary,
  .notice-21__actions .button-secondary {
    width: 100%;
  }
}

@media (max-width: 479px) {
  h1 {
    font-size: clamp(2.25rem, 11vw, 3rem);
  }

  .display {
    font-size: clamp(2.75rem, 14vw, 4rem);
  }

  .cluster,
  .button-group {
    gap: var(--space-2);
  }
}

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

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