:root {
  --color-ink: #1A1A2E;
  --color-paper: #FDF6E3;
  --color-electric-purple: #7B2FF7;
  --color-deep-navy: #0F1A3A;
  --color-lime-green: #A8E63A;
  --color-coral-red: #FF5A5F;
  --color-sky-blue: #4ECDC4;
  --color-sand: #F0E6D2;
  --color-white: #FFFFFF;

  --font-heading: 'Bangers', 'Impact', 'Arial Black', sans-serif;
  --font-body: 'Inter', 'Segoe UI', 'Helvetica Neue', sans-serif;

  --text-display: clamp(2rem, 8vw, 3.5rem);
  --text-h1: clamp(1.75rem, 5vw, 2.5rem);
  --text-h2: clamp(1.5rem, 4vw, 2rem);
  --text-h3: 1.5rem;
  --text-h4: 1.25rem;
  --text-body-large: 1.125rem;
  --text-body: 1rem;
  --text-body-small: 0.875rem;
  --text-caption: 0.75rem;

  --leading-display: 1.1;
  --leading-h1: 1.2;
  --leading-h2: 1.25;
  --leading-h3: 1.3;
  --leading-h4: 1.4;
  --leading-body: 1.6;
  --leading-body-large: 1.6;
  --leading-body-small: 1.5;
  --leading-caption: 1.4;

  --tracking-heading: 0.02em;
  --tracking-h3-h4: -0.01em;
  --tracking-caption: 0.04em;

  --space-2xs: 0.25rem;
  --space-xs: 0.5rem;
  --space-sm: 0.75rem;
  --space-md: 1rem;
  --space-lg: 1.5rem;
  --space-xl: 2rem;
  --space-2xl: 3rem;
  --space-3xl: 4rem;
  --space-4xl: 6rem;

  --container-max: 1200px;
  --container-padding: 24px;

  --radius-sm: 4px;
  --radius-md: 8px;
  --radius-lg: 12px;

  --border-width-thick: 3px;
  --border-width-standard: 2px;

  --shadow-hard: 4px 4px 0 var(--color-ink);
  --shadow-hard-hover: 2px 2px 0 var(--color-ink);
  --shadow-hard-lifted: 6px 6px 0 var(--color-ink);

  --transition-fast: 150ms ease-out;
}

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

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

body {
  font-family: var(--font-body);
  font-size: var(--text-body);
  line-height: var(--leading-body);
  color: var(--color-ink);
  background-color: var(--color-paper);
  min-height: 100vh;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
}

h1,
h2,
h3,
h4,
h5,
h6 {
  font-family: var(--font-heading);
  font-weight: 400;
  line-height: var(--leading-h1);
  letter-spacing: var(--tracking-heading);
  color: var(--color-ink);
  margin-block-end: var(--space-md);
}

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

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

h3 {
  font-family: var(--font-body);
  font-weight: 600;
  font-size: var(--text-h3);
  line-height: var(--leading-h3);
  letter-spacing: var(--tracking-h3-h4);
}

h4 {
  font-family: var(--font-body);
  font-weight: 600;
  font-size: var(--text-h4);
  line-height: var(--leading-h4);
  letter-spacing: var(--tracking-h3-h4);
}

h5,
h6 {
  font-family: var(--font-body);
  font-weight: 600;
  font-size: var(--text-body);
  line-height: var(--leading-body);
  letter-spacing: var(--tracking-h3-h4);
}

p {
  font-size: var(--text-body);
  line-height: var(--leading-body);
  margin-block-end: var(--space-md);
}

p:last-child {
  margin-block-end: 0;
}

a {
  color: var(--color-electric-purple);
  text-decoration: underline;
  text-underline-offset: 2px;
  transition: color var(--transition-fast);
}

a:hover {
  color: var(--color-coral-red);
}

a:focus-visible {
  outline: 3px solid var(--color-electric-purple);
  outline-offset: 2px;
  border-radius: 2px;
}

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

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

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

li {
  line-height: var(--leading-body);
}

blockquote {
  margin-block-end: var(--space-md);
  padding-inline-start: var(--space-lg);
  border-inline-start: 4px solid var(--color-electric-purple);
  font-style: italic;
  color: var(--color-ink);
}

blockquote:last-child {
  margin-block-end: 0;
}

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

figure:last-child {
  margin-block-end: 0;
}

figcaption {
  font-size: var(--text-caption);
  font-weight: 500;
  letter-spacing: var(--tracking-caption);
  text-transform: uppercase;
  color: var(--color-ink);
  margin-block-start: var(--space-xs);
}

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

img {
  border: var(--border-width-thick) solid var(--color-ink);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-hard);
}

button,
input,
select,
textarea {
  font-family: inherit;
  font-size: 100%;
  line-height: inherit;
  color: inherit;
}

button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-xs);
  min-height: 44px;
  padding: var(--space-sm) var(--space-lg);
  background-color: var(--color-electric-purple);
  color: var(--color-white);
  font-family: var(--font-body);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.02em;
  border: var(--border-width-thick) solid var(--color-ink);
  border-radius: var(--radius-sm);
  box-shadow: var(--shadow-hard);
  cursor: pointer;
  transition: transform var(--transition-fast), box-shadow var(--transition-fast), background-color var(--transition-fast);
}

button:hover {
  transform: translate(2px, 2px);
  box-shadow: var(--shadow-hard-hover);
}

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

button:disabled {
  opacity: 0.6;
  cursor: not-allowed;
  transform: none;
  box-shadow: var(--shadow-hard);
}

input,
select,
textarea {
  display: block;
  width: 100%;
  padding: var(--space-sm) var(--space-md);
  background-color: var(--color-white);
  border: var(--border-width-standard) solid var(--color-ink);
  border-radius: var(--radius-md);
  font-size: var(--text-body);
  line-height: var(--leading-body);
  transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
}

input:focus,
select:focus,
textarea:focus {
  outline: none;
  border-color: var(--color-electric-purple);
  box-shadow: 0 0 0 3px var(--color-electric-purple);
}

textarea {
  min-height: 120px;
  resize: vertical;
}

label {
  display: block;
  font-weight: 600;
  margin-block-end: var(--space-xs);
}

table {
  width: 100%;
  border-collapse: collapse;
  margin-block-end: var(--space-md);
}

table:last-child {
  margin-block-end: 0;
}

th,
td {
  padding: var(--space-sm) var(--space-md);
  border: var(--border-width-standard) solid var(--color-ink);
  text-align: start;
}

th {
  background-color: var(--color-sand);
  font-weight: 600;
}

hr {
  border: none;
  border-block-start: var(--border-width-thick) solid var(--color-ink);
  margin-block: var(--space-xl);
}

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

.surface-card {
  background-color: var(--color-paper);
  border: var(--border-width-thick) solid var(--color-ink);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-hard);
  padding: var(--space-lg);
  transition: transform var(--transition-fast), box-shadow var(--transition-fast);
}

.surface-card:hover {
  transform: translate(-2px, -2px);
  box-shadow: var(--shadow-hard-lifted);
}

.surface-dark {
  background-color: var(--color-deep-navy);
  color: var(--color-paper);
}

.surface-dark h1,
.surface-dark h2,
.surface-dark h3,
.surface-dark h4,
.surface-dark h5,
.surface-dark h6 {
  color: var(--color-white);
}

.surface-dark a {
  color: var(--color-lime-green);
}

.surface-dark a:hover {
  color: var(--color-coral-red);
}

.surface-dark p,
.surface-dark li,
.surface-dark blockquote {
  color: var(--color-paper);
}

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

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

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

.surface-coral {
  background-color: var(--color-coral-red);
  color: var(--color-white);
}

.surface-coral h1,
.surface-coral h2,
.surface-coral h3,
.surface-coral h4,
.surface-coral h5,
.surface-coral h6 {
  color: var(--color-white);
}

.surface-coral p,
.surface-coral li {
  color: var(--color-white);
}

.surface-coral a {
  color: var(--color-white);
  text-decoration-color: var(--color-white);
}

.surface-coral a:hover {
  color: var(--color-lime-green);
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-xs);
  min-height: 44px;
  padding: var(--space-sm) var(--space-lg);
  font-family: var(--font-body);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.02em;
  text-decoration: none;
  border: var(--border-width-thick) solid var(--color-ink);
  border-radius: var(--radius-sm);
  box-shadow: var(--shadow-hard);
  cursor: pointer;
  transition: transform var(--transition-fast), box-shadow var(--transition-fast), background-color var(--transition-fast), color var(--transition-fast);
}

.btn:hover {
  transform: translate(2px, 2px);
  box-shadow: var(--shadow-hard-hover);
}

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

.btn-primary {
  background-color: var(--color-electric-purple);
  color: var(--color-white);
}

.btn-primary:hover {
  background-color: var(--color-electric-purple);
  color: var(--color-white);
}

.btn-secondary {
  background-color: var(--color-paper);
  color: var(--color-ink);
}

.btn-secondary:hover {
  background-color: var(--color-paper);
  color: var(--color-ink);
}

.btn-official {
  background-color: var(--color-coral-red);
  color: var(--color-white);
}

.btn-official:hover {
  background-color: var(--color-coral-red);
  color: var(--color-white);
  animation: pulse-gentle 1.5s ease-in-out infinite;
}

@keyframes pulse-gentle {
  0%, 100% {
    transform: translate(2px, 2px) scale(1);
  }
  50% {
    transform: translate(2px, 2px) scale(1.03);
  }
}

.tag {
  display: inline-block;
  padding: var(--space-2xs) var(--space-sm);
  background-color: var(--color-lime-green);
  color: var(--color-ink);
  font-size: var(--text-caption);
  font-weight: 500;
  letter-spacing: var(--tracking-caption);
  text-transform: uppercase;
  border-radius: var(--radius-sm);
}

.list-unstyled {
  list-style: none;
  padding-inline-start: 0;
  margin-block-end: 0;
}

.list-unstyled li {
  margin-block-end: 0;
}

.content-list {
  list-style: disc;
  padding-inline-start: var(--space-xl);
  margin-block-end: var(--space-md);
}

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

.content-list li {
  margin-block-end: var(--space-xs);
}

.content-list li:last-child {
  margin-block-end: 0;
}

.flex-row {
  display: flex;
  flex-direction: row;
  flex-wrap: wrap;
  gap: var(--space-md);
  align-items: center;
}

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

.flex-column {
  display: flex;
  flex-direction: column;
  gap: var(--space-md);
}

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

.flex-center {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-md);
}

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

.flex-between {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-md);
  flex-wrap: wrap;
}

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

.sr-only {
  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-md);
  z-index: 1000;
  background-color: var(--color-electric-purple);
  color: var(--color-white);
  padding: var(--space-sm) var(--space-lg);
  border-radius: var(--radius-sm);
  text-decoration: none;
  font-weight: 600;
  transition: top var(--transition-fast);
}

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

@media (max-width: 768px) {
  :root {
    --container-padding: 16px;
  }

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

  h2 {
    font-size: var(--text-h2);
  }

  h3 {
    font-size: 1.25rem;
  }

  h4 {
    font-size: 1.125rem;
  }

  .container,
  .surface-card {
    padding: var(--space-md);
  }
}