:root {
  --color-graphite-950: #111316;
  --color-graphite-900: #181b1f;
  --color-graphite-800: #24282d;
  --color-graphite-650: #697178;
  --color-pale-sand-100: #e8dfd0;
  --color-pale-sand-300: #c9bdaa;
  --color-electric-violet-500: #8e63ff;
  --color-electric-violet-700: #6239c7;
  --color-oxidised-copper-500: #a7654e;
  --color-oxidised-copper-400: #c07a5e;
  --color-deep-teal-800: #123d3f;
  --color-deep-teal-500: #1e6667;
  --color-signal-white: #f8f6f1;
  --color-status-success: #83b99a;
  --color-status-error: #d77a72;

  --color-page: var(--color-graphite-900);
  --color-surface: var(--color-graphite-800);
  --color-surface-strong: var(--color-graphite-950);
  --color-surface-teal: var(--color-deep-teal-800);
  --color-surface-light: var(--color-pale-sand-100);
  --color-text: var(--color-pale-sand-100);
  --color-text-muted: var(--color-pale-sand-300);
  --color-text-subtle: var(--color-graphite-650);
  --color-text-dark: var(--color-graphite-950);
  --color-border: rgb(232 223 208 / 16%);
  --color-border-strong: rgb(167 101 78 / 55%);
  --color-overlay: rgb(17 19 22 / 82%);

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

  --text-technical: 0.75rem;
  --text-meta: 0.875rem;
  --text-body: 1rem;
  --text-lead: 1.125rem;
  --text-h4: clamp(1.25rem, 1.1rem + 0.6vw, 1.5rem);
  --text-h3: clamp(1.625rem, 1.3rem + 1.25vw, 2rem);
  --text-h2: clamp(2.25rem, 1.65rem + 2.6vw, 3rem);
  --text-h1: clamp(3rem, 2.1rem + 4.25vw, 4.5rem);

  --line-technical: 1.333;
  --line-meta: 1.429;
  --line-body: 1.5625;
  --line-lead: 1.5;
  --line-heading: 1.05;

  --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: 6rem;
  --space-10: 8rem;
  --space-11: 10rem;

  --container-max: 90rem;
  --container-padding: 3rem;

  --radius-1: 0.125rem;
  --radius-2: 0.25rem;
  --radius-3: 0.5rem;

  --border-default: 1px solid var(--color-border);
  --border-copper: 1px solid var(--color-border-strong);
  --shadow-deep: 0 1.5rem 4.375rem rgb(0 0 0 / 28%);
  --shadow-panel: 0 1rem 2.5rem rgb(0 0 0 / 20%);

  --transition-fast: 180ms ease-out;
  --transition-panel: 360ms ease-out;
  --transition-light: 720ms ease-out;
}

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

html {
  min-width: 20rem;
  scroll-behavior: smooth;
  scroll-padding-top: var(--space-8);
  -webkit-text-size-adjust: 100%;
  text-size-adjust: 100%;
}

body {
  min-width: 20rem;
  min-height: 100vh;
  margin: 0;
  overflow-x: hidden;
  background: var(--color-page);
  color: var(--color-text);
  font-family: var(--font-body);
  font-size: var(--text-body);
  font-weight: 400;
  line-height: var(--line-body);
  text-rendering: optimizeLegibility;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

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

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

img,
video {
  height: auto;
}

img {
  color: transparent;
}

svg {
  fill: currentColor;
}

iframe {
  width: 100%;
  border: 0;
}

a {
  color: inherit;
  text-decoration-thickness: 0.08em;
  text-underline-offset: 0.16em;
}

a:not([class]) {
  color: var(--color-pale-sand-100);
  text-decoration-color: var(--color-oxidised-copper-500);
}

a:not([class]):hover {
  color: var(--color-signal-white);
  text-decoration-color: var(--color-electric-violet-500);
}

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

button,
[type="button"],
[type="submit"],
[type="reset"] {
  min-height: 2.75rem;
  border: 0;
  border-radius: var(--radius-1);
  cursor: pointer;
}

button:disabled,
[type="button"]:disabled,
[type="submit"]:disabled,
[type="reset"]:disabled {
  cursor: not-allowed;
  opacity: 0.55;
}

input,
select,
textarea {
  width: 100%;
  min-height: 2.75rem;
  border: var(--border-default);
  border-radius: var(--radius-2);
  background: var(--color-graphite-800);
  color: var(--color-text);
  line-height: var(--line-body);
}

input,
select {
  padding: 0 var(--space-3);
}

textarea {
  min-height: 8rem;
  padding: var(--space-3);
  resize: vertical;
}

select {
  cursor: pointer;
}

input::placeholder,
textarea::placeholder {
  color: var(--color-pale-sand-300);
  opacity: 0.72;
}

input[type="checkbox"],
input[type="radio"] {
  width: 1.125rem;
  min-width: 1.125rem;
  min-height: 1.125rem;
  accent-color: var(--color-electric-violet-500);
}

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

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

label {
  display: inline-block;
  margin-block-end: var(--space-2);
  color: var(--color-pale-sand-100);
  font-family: var(--font-heading);
  font-size: var(--text-meta);
  font-weight: 600;
  line-height: var(--line-meta);
}

fieldset {
  margin: 0 0 var(--space-5);
  padding: var(--space-4);
  border: var(--border-default);
  border-radius: var(--radius-1);
}

legend {
  padding-inline: var(--space-2);
  color: var(--color-pale-sand-100);
  font-family: var(--font-heading);
  font-weight: 600;
}

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

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

th {
  color: var(--color-pale-sand-100);
  font-family: var(--font-heading);
  font-weight: 600;
}

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

h1,
h2,
h3,
h4,
h5,
h6 {
  margin: 0 0 var(--space-4);
  color: var(--color-text);
  font-family: var(--font-heading);
  font-weight: 650;
  letter-spacing: -0.035em;
  line-height: var(--line-heading);
  overflow-wrap: anywhere;
}

h1 {
  font-size: var(--text-h1);
  letter-spacing: -0.05em;
}

h2 {
  font-size: var(--text-h2);
  letter-spacing: -0.045em;
}

h3 {
  font-size: var(--text-h3);
  letter-spacing: -0.035em;
}

h4 {
  font-size: var(--text-h4);
  letter-spacing: -0.02em;
}

h5,
h6 {
  font-size: var(--text-body);
  letter-spacing: 0;
}

p {
  margin: 0 0 var(--space-4);
  color: var(--color-text-muted);
  line-height: var(--line-body);
  overflow-wrap: break-word;
}

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

li {
  overflow-wrap: break-word;
}

blockquote {
  margin: 0 0 var(--space-5);
  padding-inline-start: var(--space-4);
  border-inline-start: 2px solid var(--color-oxidised-copper-500);
  color: var(--color-pale-sand-100);
  font-family: var(--font-heading);
  font-size: var(--text-lead);
  line-height: var(--line-lead);
}

blockquote p {
  color: inherit;
}

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

figcaption {
  margin-block-start: var(--space-2);
  color: var(--color-pale-sand-300);
  font-size: var(--text-meta);
  line-height: var(--line-meta);
}

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

dt {
  color: var(--color-pale-sand-100);
  font-family: var(--font-heading);
  font-weight: 600;
}

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

small {
  font-size: var(--text-meta);
  line-height: var(--line-meta);
}

strong,
b {
  color: var(--color-pale-sand-100);
  font-weight: 650;
}

mark {
  padding-inline: 0.15em;
  background: var(--color-oxidised-copper-500);
  color: var(--color-graphite-950);
}

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

code,
kbd,
samp {
  padding: 0.1em 0.3em;
  border-radius: var(--radius-1);
  background: var(--color-graphite-800);
  color: var(--color-pale-sand-100);
  font-size: 0.9em;
}

pre {
  margin: 0 0 var(--space-5);
  padding: var(--space-4);
  overflow: auto;
  border: var(--border-default);
  background: var(--color-graphite-950);
  color: var(--color-pale-sand-100);
}

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

::selection {
  background: var(--color-electric-violet-500);
  color: var(--color-signal-white);
}

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

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

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

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

.section--spacious {
  padding-block: var(--space-10);
}

.surface {
  border: var(--border-default);
  border-radius: var(--radius-1);
  background: var(--color-surface);
  box-shadow: var(--shadow-panel);
}

.surface--dark {
  background: var(--color-surface-strong);
}

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

.surface--light {
  background: var(--color-surface-light);
  color: var(--color-text-dark);
}

.surface--light :is(h1, h2, h3, h4, h5, h6, strong, b, label, legend, dt) {
  color: var(--color-text-dark);
}

.surface--light :is(p, dd, figcaption) {
  color: #47433d;
}

.panel {
  padding: var(--space-5);
  border: var(--border-default);
  border-radius: var(--radius-1);
  background: var(--color-surface);
  box-shadow: var(--shadow-panel);
}

.panel--equipment {
  border-color: var(--color-border-strong);
  background: var(--color-graphite-800);
}

.stack {
  display: flex;
  min-width: 0;
  flex-direction: column;
  align-items: stretch;
}

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

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

.stack--3 {
  gap: var(--space-3);
}

.stack--4 {
  gap: var(--space-4);
}

.stack--5 {
  gap: var(--space-5);
}

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

.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--spacious {
  gap: var(--space-5);
}

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

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

.technical-label {
  margin: 0;
  color: var(--color-pale-sand-300);
  font-family: var(--font-heading);
  font-size: var(--text-technical);
  font-weight: 600;
  letter-spacing: 0.1em;
  line-height: var(--line-technical);
  text-transform: uppercase;
}

.lead {
  color: var(--color-pale-sand-100);
  font-size: var(--text-lead);
  line-height: var(--line-lead);
}

.button {
  display: inline-flex;
  min-width: 0;
  min-height: 2.75rem;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  padding: var(--space-3) var(--space-4);
  border: 1px solid transparent;
  border-radius: var(--radius-1);
  background: var(--color-oxidised-copper-500);
  color: var(--color-graphite-950);
  font-family: var(--font-heading);
  font-size: var(--text-meta);
  font-weight: 650;
  letter-spacing: 0.02em;
  line-height: 1.2;
  text-align: center;
  text-decoration: none;
  transition:
    background-color var(--transition-fast),
    border-color var(--transition-fast),
    color var(--transition-fast),
    transform var(--transition-fast);
}

.button:hover {
  background: var(--color-oxidised-copper-400);
  color: var(--color-graphite-950);
  transform: translateY(-2px);
}

.button--violet {
  background: var(--color-electric-violet-500);
  color: var(--color-signal-white);
}

.button--violet:hover {
  background: var(--color-electric-violet-700);
  color: var(--color-signal-white);
}

.button--secondary {
  border-color: var(--color-border-strong);
  background: transparent;
  color: var(--color-pale-sand-100);
}

.button--secondary:hover {
  border-color: var(--color-pale-sand-100);
  background: var(--color-graphite-800);
  color: var(--color-signal-white);
}

.button--plain {
  min-height: 2.75rem;
  padding-inline: 0;
  background: transparent;
  color: var(--color-pale-sand-100);
}

.button--plain:hover {
  background: transparent;
  color: var(--color-signal-white);
  transform: none;
}

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

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

[hidden] {
  display: none !important;
}

@media (max-width: 63.9375rem) {
  :root {
    --container-padding: 2rem;
  }

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

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

@media (max-width: 47.9375rem) {
  :root {
    --container-padding: 1.25rem;
  }

  html {
    scroll-padding-top: 4.5rem;
  }

  h1 {
    font-size: clamp(2.5rem, 11vw, 3rem);
    line-height: 1;
  }

  h2 {
    line-height: 1.04;
  }

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

  .section--compact {
    padding-block: var(--space-6);
  }

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

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

  .actions {
    align-items: stretch;
  }

  .actions > .button {
    flex: 1 1 100%;
  }
}

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

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