:root {
  --color-void-black: #08070d;
  --color-deep-violet: #17102b;
  --color-panel-violet: rgba(34, 20, 58, 0.84);
  --color-electric-cyan: #6cf4ff;
  --color-signal-pink: #ff4fa3;
  --color-signal-green: #b9ff72;
  --color-text-primary: #f5f2ff;
  --color-text-secondary: #c9c2d9;
  --color-text-muted: #9188a8;
  --color-line-violet: #453466;
  --color-danger-pink: #ff6b9f;

  --font-body: "IBM Plex Sans", system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  --font-heading: "Space Grotesk", "IBM Plex Mono", monospace;
  --font-mono: "IBM Plex Mono", "SFMono-Regular", Consolas, monospace;

  --text-display: clamp(2.625rem, 6vw, 4.875rem);
  --text-hero: clamp(2.25rem, 5vw, 4rem);
  --text-section: clamp(1.75rem, 3.2vw, 2.75rem);
  --text-card: clamp(1.25rem, 2vw, 1.75rem);
  --text-lead: clamp(1.125rem, 1.4vw, 1.1875rem);
  --text-body: 1rem;
  --text-caption: 0.8125rem;
  --text-meta: 0.6875rem;
  --text-button: 0.8125rem;

  --leading-display: 0.98;
  --leading-hero: 1.02;
  --leading-heading: 1.08;
  --leading-card: 1.12;
  --leading-lead: 1.45;
  --leading-body: 1.6;
  --leading-caption: 1.45;

  --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: 7rem;

  --container-max: 75rem;
  --gutter: 1.5rem;
  --section-space: 7rem;

  --radius-none: 0;
  --radius-control: 0.125rem;
  --radius-panel: 0.25rem;
  --radius-status: 999px;

  --border-subtle: 1px solid var(--color-line-violet);
  --border-active: 1px solid var(--color-electric-cyan);
  --shadow-glow: 0 0 18px rgba(108, 244, 255, 0.12);
  --shadow-glow-active: 0 0 26px rgba(108, 244, 255, 0.22);
  --shadow-panel: inset 0 1px 0 rgba(245, 242, 255, 0.08), inset 0 0 0 1px rgba(69, 52, 102, 0.28);

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

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

html {
  min-width: 320px;
  scroll-behavior: smooth;
  scroll-padding-top: var(--space-8);
  background: var(--color-void-black);
}

body {
  min-width: 320px;
  min-height: 100vh;
  margin: 0;
  overflow-x: hidden;
  background-color: var(--color-void-black);
  color: var(--color-text-primary);
  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.is-scroll-locked {
  overflow: hidden;
}

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

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

img,
video {
  height: auto;
}

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

a {
  color: var(--color-electric-cyan);
  text-decoration-color: rgba(108, 244, 255, 0.55);
  text-underline-offset: 0.18em;
  transition: color var(--transition-fast), text-decoration-color var(--transition-fast);
}

a:hover {
  color: var(--color-text-primary);
  text-decoration-color: currentColor;
}

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

button,
[type="button"],
[type="submit"],
[type="reset"] {
  min-height: 44px;
  border: 0;
  border-radius: var(--radius-control);
  cursor: pointer;
}

button:disabled,
input:disabled,
select:disabled,
textarea:disabled {
  cursor: not-allowed;
  opacity: 0.55;
}

input,
select,
textarea {
  width: 100%;
  min-height: 44px;
  border: var(--border-subtle);
  border-radius: var(--radius-control);
  background: rgba(23, 16, 43, 0.86);
  color: var(--color-text-primary);
  padding: var(--space-3) var(--space-4);
  transition: border-color var(--transition-fast), box-shadow var(--transition-fast), background-color var(--transition-fast);
}

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

select {
  appearance: none;
}

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

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

input:focus,
select:focus,
textarea:focus {
  border-color: var(--color-electric-cyan);
  background-color: rgba(34, 20, 58, 0.96);
  box-shadow: var(--shadow-glow);
  outline: none;
}

fieldset {
  min-width: 0;
  margin: 0 0 var(--space-5);
  border: var(--border-subtle);
  padding: var(--space-5);
}

legend {
  padding: 0 var(--space-2);
  color: var(--color-text-primary);
  font-family: var(--font-mono);
  font-size: var(--text-meta);
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

label {
  display: inline-block;
  margin-bottom: var(--space-2);
  color: var(--color-text-secondary);
  font-family: var(--font-mono);
  font-size: var(--text-meta);
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

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

h1,
h2,
h3,
h4,
h5,
h6 {
  margin: 0 0 var(--space-4);
  color: var(--color-text-primary);
  font-family: var(--font-heading);
  font-weight: 700;
  text-wrap: balance;
}

h1 {
  font-size: var(--text-display);
  line-height: var(--leading-display);
  letter-spacing: -0.035em;
}

h2 {
  font-size: var(--text-section);
  line-height: var(--leading-heading);
  letter-spacing: -0.028em;
}

h3 {
  font-size: var(--text-card);
  line-height: var(--leading-card);
  letter-spacing: -0.02em;
}

h4 {
  font-size: 1.125rem;
  line-height: 1.2;
  letter-spacing: -0.012em;
}

h5,
h6 {
  font-size: 1rem;
  line-height: 1.3;
}

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

ul,
ol {
  margin: 0 0 var(--space-5);
  padding-left: var(--space-5);
}

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

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

.content-list,
.rich-text ul,
.rich-text ol {
  display: grid;
  gap: var(--space-2);
}

.content-list li,
.rich-text li {
  min-width: 0;
}

blockquote {
  margin: 0 0 var(--space-5);
  border-left: 2px solid var(--color-electric-cyan);
  padding: var(--space-3) 0 var(--space-3) var(--space-4);
  color: var(--color-text-primary);
  font-family: var(--font-heading);
  font-size: clamp(1.125rem, 2vw, 1.5rem);
  line-height: 1.35;
}

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

figcaption {
  margin-top: var(--space-2);
  color: var(--color-text-muted);
  font-size: var(--text-caption);
  line-height: var(--leading-caption);
}

table {
  width: 100%;
  margin: 0 0 var(--space-5);
  border-collapse: collapse;
  border: var(--border-subtle);
  color: var(--color-text-secondary);
  font-size: 0.9375rem;
}

th,
td {
  min-width: 0;
  border-bottom: var(--border-subtle);
  padding: var(--space-3) var(--space-4);
  text-align: left;
  vertical-align: top;
}

th {
  color: var(--color-text-primary);
  font-family: var(--font-mono);
  font-size: var(--text-meta);
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

tr:last-child td {
  border-bottom: 0;
}

code,
kbd,
samp {
  font-family: var(--font-mono);
  font-size: 0.9em;
}

code {
  border: 1px solid rgba(69, 52, 102, 0.72);
  background: rgba(23, 16, 43, 0.82);
  padding: 0.1em 0.32em;
  color: var(--color-electric-cyan);
}

pre {
  margin: 0 0 var(--space-5);
  overflow-x: auto;
  border: var(--border-subtle);
  background: var(--color-deep-violet);
  padding: var(--space-4);
}

pre code {
  border: 0;
  background: transparent;
  padding: 0;
}

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

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

.section--violet {
  background-color: var(--color-deep-violet);
}

.surface {
  border: var(--border-subtle);
  background: var(--color-deep-violet);
  box-shadow: var(--shadow-panel);
}

.panel {
  border: var(--border-subtle);
  border-radius: var(--radius-panel);
  background: var(--color-panel-violet);
  box-shadow: var(--shadow-panel);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
}

.panel--hud {
  position: relative;
  overflow: hidden;
  clip-path: polygon(0 0, calc(100% - 1rem) 0, 100% 1rem, 100% 100%, 0 100%);
}

.panel--hud::before {
  position: absolute;
  top: 0;
  left: 0;
  width: 3.5rem;
  height: 1px;
  background: var(--color-electric-cyan);
  box-shadow: var(--shadow-glow);
  content: "";
}

.panel > :last-child,
.surface > :last-child,
.compact-content > :last-child,
.card > :last-child {
  margin-bottom: 0;
}

.eyebrow,
.meta,
.system-label {
  color: var(--color-text-muted);
  font-family: var(--font-mono);
  font-size: var(--text-meta);
  font-weight: 600;
  letter-spacing: 0.08em;
  line-height: 1.35;
  text-transform: uppercase;
}

.eyebrow,
.system-label {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
}

.eyebrow::before,
.system-label::before {
  width: 0.45rem;
  height: 0.45rem;
  border-radius: var(--radius-status);
  background: var(--color-electric-cyan);
  box-shadow: 0 0 10px rgba(108, 244, 255, 0.56);
  content: "";
}

.meta--cyan {
  color: var(--color-electric-cyan);
}

.meta--green {
  color: var(--color-signal-green);
}

.meta--pink {
  color: var(--color-signal-pink);
}

.lead {
  color: var(--color-text-secondary);
  font-size: var(--text-lead);
  line-height: var(--leading-lead);
}

.caption {
  color: var(--color-text-muted);
  font-size: var(--text-caption);
  line-height: var(--leading-caption);
}

.button,
.button-secondary,
.button-danger {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 0;
  min-height: 44px;
  border: 1px solid transparent;
  border-radius: var(--radius-control);
  padding: 0.7rem var(--space-4);
  font-family: var(--font-heading);
  font-size: var(--text-button);
  font-weight: 650;
  letter-spacing: 0.06em;
  line-height: 1.1;
  text-align: center;
  text-decoration: none;
  text-transform: uppercase;
  transition: border-color var(--transition-fast), background-color var(--transition-fast), color var(--transition-fast), box-shadow var(--transition-fast);
}

.button {
  background: var(--color-electric-cyan);
  color: var(--color-void-black);
}

.button:hover {
  background: #9af8ff;
  color: var(--color-void-black);
  box-shadow: var(--shadow-glow-active);
}

.button-secondary {
  border-color: var(--color-electric-cyan);
  background: rgba(23, 16, 43, 0.76);
  color: var(--color-electric-cyan);
}

.button-secondary:hover {
  border-color: #b1fbff;
  background: rgba(34, 20, 58, 0.98);
  color: var(--color-text-primary);
  box-shadow: var(--shadow-glow);
}

.button-danger {
  border-color: var(--color-danger-pink);
  background: rgba(255, 107, 159, 0.08);
  color: #ffc1d7;
}

.button-danger:hover {
  border-color: #ffb1cf;
  background: rgba(255, 107, 159, 0.16);
  color: var(--color-text-primary);
}

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

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

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

.nav-toggle {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  flex-direction: column;
  flex-shrink: 0;
  gap: var(--space-1);
  min-width: 44px;
  min-height: 44px;
  padding: var(--space-2);
  border: var(--border-subtle);
  background: rgba(23, 16, 43, 0.82);
  color: var(--color-electric-cyan);
}

.nav-toggle:hover {
  border-color: var(--color-electric-cyan);
  box-shadow: var(--shadow-glow);
}

.nav-toggle span {
  display: block;
  width: 1.25rem;
  height: 1px;
  background: currentColor;
}

.status {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  min-width: 0;
  border: 1px solid rgba(69, 52, 102, 0.86);
  border-radius: var(--radius-status);
  padding: 0.3rem var(--space-2);
  color: var(--color-text-secondary);
  font-family: var(--font-mono);
  font-size: var(--text-meta);
  font-weight: 600;
  letter-spacing: 0.07em;
  line-height: 1;
  text-transform: uppercase;
}

.status::before {
  width: 0.4rem;
  height: 0.4rem;
  flex: 0 0 auto;
  border-radius: 50%;
  background: var(--color-signal-green);
  box-shadow: 0 0 8px rgba(185, 255, 114, 0.56);
  content: "";
}

.status--cyan::before {
  background: var(--color-electric-cyan);
  box-shadow: 0 0 8px rgba(108, 244, 255, 0.56);
}

.status--pink::before {
  background: var(--color-signal-pink);
  box-shadow: 0 0 8px rgba(255, 79, 163, 0.56);
}

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

.skip-link {
  position: fixed;
  z-index: 1000;
  top: var(--space-3);
  left: var(--space-3);
  transform: translateY(-200%);
  border: var(--border-active);
  background: var(--color-void-black);
  padding: var(--space-3) var(--space-4);
  color: var(--color-electric-cyan);
  transition: transform var(--transition-fast);
}

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

@media (max-width: 56.25rem) {
  :root {
    --section-space: 5rem;
  }
}

@media (max-width: 43.75rem) {
  :root {
    --gutter: 1rem;
    --section-space: 3.5rem;
  }

  html {
    scroll-padding-top: var(--space-6);
  }

  h1 {
    font-size: clamp(2.25rem, 11vw, 3.25rem);
  }

  h2 {
    font-size: clamp(1.75rem, 8vw, 2.25rem);
  }

  table {
    display: block;
    overflow-x: auto;
  }

  .button-group {
    align-items: stretch;
    flex-direction: column;
  }

  .button-group > .button,
  .button-group > .button-secondary,
  .button-group > .button-danger {
    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;
  }
}