:root {
  --color-ink-950: #0d1117;
  --color-surface-900: #161b22;
  --color-surface-850: #1c222b;
  --color-line-subtle: #30363d;
  --color-text-primary: #f0f6fc;
  --color-text-secondary: #c9d1d9;
  --color-text-muted: #8b949e;
  --color-signal-green: #238636;
  --color-signal-green-bright: #2ea043;
  --color-signal-green-wash: #122a1a;
  --color-text-on-green: #f0f6fc;
  --color-warm-image-neutral: #b7a58a;

  --font-heading: "Space Grotesk", ui-sans-serif, system-ui, sans-serif;
  --font-body: "Inter", ui-sans-serif, system-ui, sans-serif;
  --font-mono: "IBM Plex Mono", ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;

  --text-telemetry: 0.6875rem;
  --text-meta: 0.75rem;
  --text-compact: 0.875rem;
  --text-body: 1rem;
  --text-card-title: 1.25rem;
  --text-section: clamp(1.625rem, 3vw, 2.5rem);
  --text-feature: clamp(2rem, 4vw, 3.5rem);
  --text-display: clamp(2.625rem, 7vw, 4.75rem);
  --text-display-mobile: clamp(2.5rem, 12vw, 3.625rem);

  --leading-telemetry: 1.35;
  --leading-meta: 1.4;
  --leading-compact: 1.55;
  --leading-body: 1.6;
  --leading-heading: 1.08;
  --leading-section: 1.2;
  --leading-card: 1.35;
  --leading-display: 0.98;

  --tracking-heading: -0.045em;
  --tracking-mono: 0.1em;

  --space-1: 0.25rem;
  --space-2: 0.5rem;
  --space-3: 0.75rem;
  --space-4: 1rem;
  --space-5: 1.25rem;
  --space-6: 1.5rem;
  --space-8: 2rem;
  --space-10: 2.5rem;
  --space-14: 3.5rem;
  --space-18: 4.5rem;
  --space-24: 6rem;
  --space-32: 8rem;

  --container-max: 77.5rem;
  --container-gutter: 1.5rem;
  --nav-max: 73.75rem;

  --section-padding: clamp(4rem, 8vw, 7rem);

  --radius-data: 0.375rem;
  --radius-panel: 0.625rem;
  --radius-nav: 1.125rem;
  --radius-pill: 999px;

  --border-default: 1px solid var(--color-line-subtle);
  --border-active: 1px solid var(--color-signal-green);
  --shadow-floating: 0 14px 40px rgba(0, 0, 0, 0.28);
  --shadow-panel-inset: inset 0 0 0 1px rgba(240, 246, 252, 0.03);

  --transition-control: 160ms ease-out;
  --transition-panel: 240ms ease-out;
}

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

html {
  min-width: 0;
  scroll-behavior: smooth;
  text-size-adjust: 100%;
  -webkit-text-size-adjust: 100%;
}

body {
  min-width: 0;
  min-height: 100vh;
  margin: 0;
  overflow-x: hidden;
  background: var(--color-ink-950);
  color: var(--color-text-secondary);
  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;
}

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

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

img,
video {
  height: auto;
}

img {
  color: transparent;
}

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

button,
select {
  text-transform: none;
}

button,
[type="button"],
[type="reset"],
[type="submit"] {
  -webkit-appearance: button;
  appearance: button;
}

button,
label,
select,
summary {
  cursor: pointer;
}

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

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

input,
textarea,
select {
  width: 100%;
  border: var(--border-default);
  border-radius: var(--radius-panel);
  background: var(--color-ink-950);
  color: var(--color-text-primary);
  line-height: 1.4;
}

input,
select {
  min-height: 3rem;
  padding: 0.75rem 0.875rem;
}

textarea {
  padding: 0.875rem;
}

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

input[type="checkbox"],
input[type="radio"] {
  width: 1rem;
  min-height: 0;
  accent-color: var(--color-signal-green);
}

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

select {
  appearance: auto;
}

fieldset {
  margin: 0;
  padding: 0;
  border: 0;
}

legend {
  padding: 0;
}

a {
  color: inherit;
  overflow-wrap: anywhere;
  text-decoration-color: var(--color-signal-green);
  text-underline-offset: 0.18em;
  transition: color var(--transition-control), text-decoration-color var(--transition-control);
}

a:hover {
  color: var(--color-text-primary);
  text-decoration-color: var(--color-signal-green-bright);
}

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

::selection {
  background: var(--color-signal-green);
  color: var(--color-text-on-green);
}

h1,
h2,
h3,
h4,
h5,
h6 {
  margin-block: 0 var(--space-4);
  color: var(--color-text-primary);
  font-family: var(--font-heading);
  font-weight: 600;
  letter-spacing: var(--tracking-heading);
  overflow-wrap: anywhere;
  text-wrap: balance;
}

h1 {
  font-size: var(--text-display);
  line-height: var(--leading-display);
}

h2 {
  font-size: var(--text-feature);
  line-height: var(--leading-heading);
}

h3 {
  font-size: var(--text-section);
  line-height: var(--leading-section);
}

h4 {
  font-size: var(--text-card-title);
  line-height: var(--leading-card);
}

h5,
h6 {
  font-size: var(--text-body);
  line-height: var(--leading-heading);
}

p {
  margin-block: 0 var(--space-4);
  color: var(--color-text-secondary);
  overflow-wrap: anywhere;
}

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

li {
  overflow-wrap: anywhere;
}

main ul:not([class]) li + li,
main ol:not([class]) li + li,
article ul:not([class]) li + li,
article ol:not([class]) blockquote {
  margin: 0 0 var(--space-4);
  padding: var(--space-4) 0 var(--space-4) var(--space-5);
  border-inline-start: 2px solid var(--color-signal-green);
  color: var(--color-text-primary);
  font-family: var(--font-heading);
  font-size: var(--text-card-title);
  line-height: var(--leading-card);
}

figure {
  margin: 0 0 var(--space-4);
}

figcaption {
  margin-block-start: var(--space-2);
  color: var(--color-text-muted);
  font-family: var(--font-mono);
  font-size: var(--text-telemetry);
  letter-spacing: var(--tracking-mono);
  line-height: var(--leading-telemetry);
  text-transform: uppercase;
}

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

table {
  width: 100%;
  border-collapse: collapse;
  border-spacing: 0;
  color: var(--color-text-secondary);
  font-size: var(--text-compact);
}

caption {
  margin-block-end: var(--space-2);
  color: var(--color-text-muted);
  font-family: var(--font-mono);
  font-size: var(--text-telemetry);
  letter-spacing: var(--tracking-mono);
  text-align: left;
  text-transform: uppercase;
}

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

th {
  color: var(--color-text-primary);
  font-family: var(--font-mono);
  font-size: var(--text-telemetry);
  font-weight: 500;
  letter-spacing: var(--tracking-mono);
  text-transform: uppercase;
}

code,
kbd,
samp,
pre {
  font-family: var(--font-mono);
}

code,
kbd {
  padding: 0.1em 0.35em;
  border: 1px solid var(--color-line-subtle);
  border-radius: var(--radius-data);
  background: var(--color-surface-900);
  color: var(--color-text-primary);
  font-size: 0.9em;
}

pre {
  margin: 0 0 var(--space-4);
  padding: var(--space-4);
  overflow: auto;
  border: var(--border-default);
  border-radius: var(--radius-panel);
  background: var(--color-surface-900);
  color: var(--color-text-secondary);
  font-size: var(--text-compact);
  line-height: 1.6;
}

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

strong,
b {
  color: var(--color-text-primary);
  font-weight: 600;
}

address {
  margin: 0 0 var(--space-4);
  font-style: normal;
}

details {
  margin: 0 0 var(--space-4);
}

summary {
  color: var(--color-text-primary);
  font-family: var(--font-heading);
  font-weight: 500;
}

label {
  display: block;
  margin-block-end: var(--space-2);
  color: var(--color-text-secondary);
  font-family: var(--font-mono);
  font-size: var(--text-meta);
  letter-spacing: 0.08em;
  line-height: var(--leading-meta);
  text-transform: uppercase;
}

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

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

.surface {
  border: var(--border-default);
  background: var(--color-surface-900);
  box-shadow: var(--shadow-panel-inset);
}

.panel {
  padding: clamp(var(--space-5), 3vw, var(--space-6));
  border: var(--border-default);
  border-radius: var(--radius-panel);
  background: var(--color-surface-900);
  box-shadow: var(--shadow-panel-inset);
}

.panel--nested {
  background: var(--color-surface-850);
}

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

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

.stack--tight {
  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;
}

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

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

.eyebrow,
.route-marker,
.telemetry {
  margin: 0 0 var(--space-3);
  color: var(--color-text-muted);
  font-family: var(--font-mono);
  font-size: var(--text-telemetry);
  font-weight: 500;
  letter-spacing: var(--tracking-mono);
  line-height: var(--leading-telemetry);
  text-transform: uppercase;
}

.route-marker {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
}

.route-marker::before {
  width: 1.25rem;
  height: 1px;
  flex: 0 0 auto;
  background: var(--color-signal-green);
  content: "";
}

.status {
  display: inline-flex;
  min-width: 0;
  align-items: center;
  gap: var(--space-2);
  padding: 0.25rem var(--space-2);
  border: 1px solid rgba(86, 211, 100, 0.28);
  border-radius: var(--radius-data);
  background: var(--color-signal-green-wash);
  color: #56d364;
  font-family: var(--font-mono);
  font-size: var(--text-telemetry);
  font-weight: 500;
  letter-spacing: 0.08em;
  line-height: var(--leading-telemetry);
  text-transform: uppercase;
}

.status--pill {
  border-radius: var(--radius-pill);
}

.status__dot {
  width: 0.375rem;
  height: 0.375rem;
  flex: 0 0 auto;
  border-radius: 50%;
  background: var(--color-signal-green-bright);
}

.button {
  display: inline-flex;
  min-height: 2.75rem;
  max-width: 100%;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  padding: 0.75rem 1.125rem;
  border: 1px solid transparent;
  border-radius: var(--radius-pill);
  background: var(--color-signal-green);
  color: var(--color-text-on-green);
  font-family: var(--font-heading);
  font-size: var(--text-compact);
  font-weight: 600;
  letter-spacing: -0.01em;
  line-height: 1.2;
  text-align: center;
  text-decoration: none;
  transition:
    background-color var(--transition-control),
    border-color var(--transition-control),
    color var(--transition-control),
    transform var(--transition-control);
}

.button:hover {
  background: var(--color-signal-green-bright);
  color: var(--color-text-on-green);
  text-decoration: none;
  transform: translateY(-1px);
}

.button:active {
  transform: translateY(0);
}

.button--secondary {
  border-color: var(--color-text-muted);
  background: transparent;
  color: var(--color-text-primary);
}

.button--secondary:hover {
  border-color: var(--color-signal-green-bright);
  background: var(--color-surface-900);
  color: var(--color-text-primary);
}

.image-frame {
  position: relative;
  overflow: hidden;
  border: var(--border-default);
  border-radius: var(--radius-data);
  background: var(--color-surface-900);
  aspect-ratio: 16 / 10;
}

.image-frame--square {
  aspect-ratio: 1 / 1;
}

.image-frame--portrait {
  aspect-ratio: 4 / 5;
}

.image-frame--standard {
  aspect-ratio: 4 / 3;
}

.image-frame > img,
.image-frame > picture,
.image-frame > picture > img,
.image-frame > video {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.image-frame > picture {
  display: block;
}

.image-frame > picture > img {
  display: block;
}

.grid-backdrop {
  background-image:
    linear-gradient(rgba(48, 54, 61, 0.28) 1px, transparent 1px),
    linear-gradient(90deg, rgba(48, 54, 61, 0.28) 1px, transparent 1px);
  background-size: 2rem 2rem;
}

.divider {
  height: 1px;
  border: 0;
  background: var(--color-line-subtle);
}

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

.skip-link {
  position: fixed;
  z-index: 1000;
  top: var(--space-3);
  left: var(--space-3);
  padding: var(--space-3) var(--space-4);
  transform: translateY(-200%);
  border-radius: var(--radius-data);
  background: var(--color-signal-green);
  color: var(--color-text-on-green);
  font-family: var(--font-heading);
  font-weight: 600;
  text-decoration: none;
  transition: transform var(--transition-control);
}

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

@media (max-width: 639px) {
  :root {
    --container-gutter: 1rem;
    --section-padding: clamp(3rem, 10vw, 4.5rem);
  }

  h1 {
    font-size: var(--text-display-mobile);
  }

  .image-frame {
    aspect-ratio: 4 / 3;
  }

  .image-frame--portrait {
    aspect-ratio: 4 / 5;
  }

  .cluster--mobile-stack {
    align-items: stretch;
  }

  .cluster--mobile-stack > .button {
    width: 100%;
  }
}

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

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