:root {
  --bg-base: #1a1a1a;
  --surface-1: #2a2a2a;
  --surface-2: #333333;
  --accent-primary: #ff6600;
  --accent-secondary: #ff8533;
  --text-primary: #f5f5f5;
  --text-secondary: #b3b3b3;
  --text-inverse: #1a1a1a;
  --border-default: #3a3a3a;
  --hazard-stripe: repeating-linear-gradient(45deg, #ff6600 0, #ff6600 10px, #1a1a1a 10px, #1a1a1a 20px);
  --font-heading: "Archivo Black", "Arial Black", sans-serif;
  --font-body: "IBM Plex Mono", "Courier New", monospace;
  --space-1: 4px;
  --space-2: 8px;
  --space-3: 16px;
  --space-4: 24px;
  --space-5: 32px;
  --space-6: 48px;
  --space-7: 64px;
  --space-8: 96px;
  --radius-none: 0px;
  --radius-sm: 2px;
  --radius-md: 4px;
  --shadow-subtle: 0 1px 3px rgba(0, 0, 0, 0.5);
  --focus-outline: 2px solid #ff6600;
  --transition-color: 150ms ease;
  --transition-transform: 200ms ease;
  --container-max: 1200px;
  --container-padding: 16px;
}

*,
*::before,
*::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  -webkit-text-size-adjust: 100%;
  text-size-adjust: 100%;
  scroll-behavior: smooth;
  font-size: 16px;
}

body {
  font-family: var(--font-body);
  font-size: 1rem;
  line-height: 1.6;
  font-weight: 400;
  color: var(--text-primary);
  background-color: var(--bg-base);
  min-height: 100vh;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

h1,
h2,
h3,
h4,
h5,
h6 {
  font-family: var(--font-heading);
  font-weight: 700;
  line-height: 1.2;
  letter-spacing: 0.02em;
  text-transform: uppercase;
  color: var(--text-primary);
  margin-block-end: var(--space-3);
  overflow-wrap: break-word;
  word-wrap: break-word;
  hyphens: auto;
}

h1 {
  font-size: clamp(2rem, 5vw, 2.5rem);
  line-height: 1.2;
}

h2 {
  font-size: clamp(1.5rem, 4vw, 2rem);
  line-height: 1.3;
}

h3 {
  font-size: clamp(1.25rem, 3vw, 1.5rem);
  line-height: 1.4;
}

h4 {
  font-size: 1.125rem;
  line-height: 1.4;
}

h5 {
  font-size: 1rem;
  line-height: 1.4;
}

h6 {
  font-size: 0.875rem;
  line-height: 1.4;
}

.display {
  font-size: clamp(2.5rem, 7vw, 3.5rem);
  line-height: 1.1;
  font-weight: 700;
  letter-spacing: 0.02em;
}

p {
  margin-block-end: var(--space-3);
  overflow-wrap: break-word;
  word-wrap: break-word;
}

ul,
ol {
  margin-block-end: var(--space-3);
  padding-inline-start: var(--space-4);
}

ul ul,
ol ol,
ul ol,
ol ul {
  margin-block-end: 0;
}

li {
  line-height: 1.6;
}

blockquote {
  margin-block-end: var(--space-3);
  padding-inline-start: var(--space-4);
  border-inline-start: 3px solid var(--accent-primary);
  color: var(--text-secondary);
}

figure {
  margin-block-end: var(--space-3);
}

figcaption {
  font-size: 0.875rem;
  line-height: 1.5;
  color: var(--text-secondary);
  margin-block-start: var(--space-2);
}

dl {
  margin-block-end: var(--space-3);
}

dt {
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  font-size: 0.875rem;
  margin-block-start: var(--space-3);
}

dd {
  margin-inline-start: var(--space-4);
  margin-block-end: var(--space-2);
}

pre {
  margin-block-end: var(--space-3);
  padding: var(--space-3);
  background-color: var(--surface-1);
  border: 1px solid var(--border-default);
  overflow-x: auto;
  font-family: var(--font-body);
  font-size: 0.875rem;
  line-height: 1.5;
}

code,
kbd,
samp {
  font-family: var(--font-body);
  font-size: 0.875em;
  background-color: var(--surface-1);
  padding: 2px 4px;
  border: 1px solid var(--border-default);
  border-radius: var(--radius-sm);
}

a {
  color: var(--accent-primary);
  text-decoration: none;
  transition: color var(--transition-color), background-color var(--transition-color);
}

a:hover {
  color: var(--accent-secondary);
}

a:focus-visible {
  outline: var(--focus-outline);
  outline-offset: 2px;
}

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

img,
video {
  object-fit: cover;
}

table {
  width: 100%;
  border-collapse: collapse;
  margin-block-end: var(--space-3);
  font-size: 0.875rem;
}

caption {
  text-align: start;
  font-size: 0.875rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--text-secondary);
  margin-block-end: var(--space-2);
}

th,
td {
  padding: var(--space-2) var(--space-3);
  border: 1px solid var(--border-default);
  text-align: start;
  vertical-align: top;
}

th {
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  font-size: 0.75rem;
  color: var(--text-secondary);
  background-color: var(--surface-1);
}

hr {
  border: none;
  border-block-start: 1px solid var(--border-default);
  margin-block: var(--space-4);
}

fieldset {
  border: 1px solid var(--border-default);
  padding: var(--space-3);
  margin-block-end: var(--space-3);
}

legend {
  font-family: var(--font-heading);
  font-size: 0.875rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  padding-inline: var(--space-2);
}

label {
  display: block;
  font-size: 0.875rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--text-secondary);
  margin-block-end: var(--space-2);
}

input,
select,
textarea,
button {
  font-family: var(--font-body);
  font-size: 1rem;
  line-height: 1.5;
  color: var(--text-primary);
  background-color: var(--surface-1);
  border: 1px solid var(--border-default);
  border-radius: var(--radius-sm);
  padding: var(--space-2) var(--space-3);
  transition: border-color var(--transition-color), background-color var(--transition-color), box-shadow var(--transition-color);
}

input:focus-visible,
select:focus-visible,
textarea:focus-visible,
button:focus-visible {
  outline: var(--focus-outline);
  outline-offset: 2px;
  border-color: var(--accent-primary);
}

input::placeholder,
textarea::placeholder {
  color: var(--text-secondary);
  opacity: 0.7;
}

textarea {
  resize: vertical;
  min-height: 100px;
}

select {
  appearance: none;
  -webkit-appearance: none;
  -moz-appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='8' viewBox='0 0 12 8'%3E%3Cpath d='M1 1l5 5 5-5' stroke='%23b3b3b3' stroke-width='2' fill='none'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right var(--space-3) center;
  padding-inline-end: var(--space-5);
}

button {
  cursor: pointer;
  background-color: var(--surface-1);
  border-color: var(--border-default);
  min-height: 44px;
  transition: background-color var(--transition-color), border-color var(--transition-color), transform var(--transition-transform), color var(--transition-color);
}

button:hover {
  background-color: var(--surface-2);
  border-color: var(--accent-primary);
}

button:active {
  transform: translateY(1px);
}

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

.surface-1 {
  background-color: var(--surface-1);
  border: 1px solid var(--border-default);
  border-radius: var(--radius-none);
}

.surface-2 {
  background-color: var(--surface-2);
  border: 1px solid var(--border-default);
  border-radius: var(--radius-none);
}

.card {
  background-color: var(--surface-1);
  border: 1px solid var(--border-default);
  border-radius: var(--radius-none);
  box-shadow: var(--shadow-subtle);
  overflow: hidden;
}

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

.panel {
  background-color: var(--surface-1);
  border: 1px solid var(--border-default);
  border-radius: var(--radius-none);
  padding: var(--space-3);
}

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

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  font-family: var(--font-heading);
  font-size: 0.875rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--text-inverse);
  background-color: var(--accent-primary);
  border: 1px solid var(--accent-primary);
  border-radius: var(--radius-sm);
  padding: var(--space-2) var(--space-4);
  min-height: 44px;
  cursor: pointer;
  clip-path: polygon(0 0, calc(100% - 8px) 0, 100% 8px, 100% 100%, 8px 100%, 0 calc(100% - 8px));
  transition: background-color var(--transition-color), border-color var(--transition-color), transform var(--transition-transform);
}

.btn:hover {
  background-color: var(--accent-secondary);
  border-color: var(--accent-secondary);
  color: var(--text-inverse);
}

.btn:active {
  transform: translateY(1px);
}

.btn:focus-visible {
  outline: var(--focus-outline);
  outline-offset: 2px;
}

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

.btn-secondary:hover {
  background-color: var(--surface-2);
  border-color: var(--accent-primary);
  color: var(--text-primary);
}

.badge {
  display: inline-block;
  font-size: 0.75rem;
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--accent-primary);
  background-color: var(--surface-2);
  border: 1px solid var(--border-default);
  border-radius: var(--radius-md);
  padding: 2px var(--space-2);
  line-height: 1.4;
}

.hazard-strip {
  height: 8px;
  background: var(--hazard-stripe);
  border: none;
  margin-block: var(--space-4);
}

.label-compact {
  font-size: 0.75rem;
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--accent-primary);
  margin-block-end: var(--space-2);
}

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

.flex > * {
  min-width: 0;
  flex-shrink: 1;
}

.flex-nowrap {
  flex-wrap: nowrap;
}

.flex-column {
  flex-direction: column;
}

.flex-center {
  align-items: center;
  justify-content: center;
}

.flex-between {
  align-items: center;
  justify-content: space-between;
}

.flex-start {
  align-items: flex-start;
  justify-content: flex-start;
}

.flex-end {
  align-items: flex-end;
  justify-content: flex-end;
}

.flex-1 {
  flex: 1 1 0%;
  min-width: 0;
}

.flex-auto {
  flex: 0 1 auto;
  min-width: 0;
}

.flex-none {
  flex: 0 0 auto;
}

.gap-1 {
  gap: var(--space-1);
}

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

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

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

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

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

.mt-1 {
  margin-block-start: var(--space-1);
}

.mt-2 {
  margin-block-start: var(--space-2);
}

.mt-3 {
  margin-block-start: var(--space-3);
}

.mt-4 {
  margin-block-start: var(--space-4);
}

.mt-5 {
  margin-block-start: var(--space-5);
}

.mb-1 {
  margin-block-end: var(--space-1);
}

.mb-2 {
  margin-block-end: var(--space-2);
}

.mb-3 {
  margin-block-end: var(--space-3);
}

.mb-4 {
  margin-block-end: var(--space-4);
}

.mb-5 {
  margin-block-end: var(--space-5);
}

.mx-auto {
  margin-inline: auto;
}

.text-center {
  text-align: center;
}

.text-start {
  text-align: start;
}

.text-end {
  text-align: end;
}

.text-uppercase {
  text-transform: uppercase;
}

.text-secondary {
  color: var(--text-secondary);
}

.text-accent {
  color: var(--accent-primary);
}

.text-small {
  font-size: 0.875rem;
  line-height: 1.5;
}

.text-micro {
  font-size: 0.75rem;
  line-height: 1.4;
  font-weight: 500;
}

.visually-hidden {
  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: absolute;
  top: -100%;
  left: var(--space-3);
  z-index: 9999;
  background-color: var(--accent-primary);
  color: var(--text-inverse);
  padding: var(--space-2) var(--space-3);
  font-family: var(--font-heading);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  font-size: 0.875rem;
  border-radius: var(--radius-sm);
  transition: top 200ms ease;
}

.skip-link:focus {
  top: var(--space-3);
}

@media (max-width: 768px) {
  :root {
    --container-padding: 12px;
  }

  body {
    font-size: 0.9375rem;
  }

  .display {
    font-size: clamp(2rem, 8vw, 2.5rem);
  }

  h1 {
    font-size: clamp(1.75rem, 6vw, 2rem);
  }

  h2 {
    font-size: clamp(1.375rem, 5vw, 1.5rem);
  }

  h3 {
    font-size: clamp(1.125rem, 4vw, 1.25rem);
  }

  .container {
    padding-inline: 12px;
  }

  .btn {
    min-height: 44px;
    padding: var(--space-2) var(--space-3);
    font-size: 0.8125rem;
  }
}

@media (max-width: 480px) {
  :root {
    --container-padding: 8px;
  }

  .container {
    padding-inline: 8px;
  }

  .display {
    font-size: clamp(1.75rem, 9vw, 2rem);
  }

  h1 {
    font-size: clamp(1.5rem, 7vw, 1.75rem);
  }

  h2 {
    font-size: clamp(1.25rem, 6vw, 1.375rem);
  }

  h3 {
    font-size: clamp(1rem, 5vw, 1.125rem);
  }
}

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

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