:root {
  --color-cream: #FAF3E7;
  --color-ivory: #FFFDF7;
  --color-slate: #2C3E50;
  --color-slate-muted: #5D6D7E;
  --color-amber: #F39C12;
  --color-amber-dark: #E67E22;
  --color-mint: #2ECC71;
  --color-white: #FFFFFF;
  --color-border: #E5E8EC;
  --color-image-border: rgba(0, 0, 0, 0.05);

  --font-heading: "Poppins", "Inter", system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  --font-body: "Inter", system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;

  --text-display: clamp(2rem, 1.5rem + 2vw, 2.5rem);
  --text-h1: clamp(1.75rem, 1.4rem + 1.5vw, 2rem);
  --text-h2: clamp(1.375rem, 1.2rem + 0.8vw, 1.5rem);
  --text-h3: clamp(1.125rem, 1.05rem + 0.3vw, 1.25rem);
  --text-body: 1rem;
  --text-small: 0.875rem;

  --leading-display: 1.2;
  --leading-h1: 1.25;
  --leading-h2: 1.33;
  --leading-h3: 1.4;
  --leading-body: 1.5;
  --leading-small: 1.43;

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

  --container-max: 1200px;
  --container-padding: clamp(1rem, 0.5rem + 2vw, 1.5rem);

  --surface-card: var(--color-ivory);
  --surface-page: var(--color-cream);

  --shadow-card: 0 4px 12px rgba(0, 0, 0, 0.08);
  --shadow-small: 0 2px 8px rgba(0, 0, 0, 0.06);
  --shadow-hover: 0 6px 16px rgba(0, 0, 0, 0.12);

  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 16px;
  --radius-full: 50%;

  --border-width: 1px;
  --border-style: solid;
  --border-color: var(--color-border);

  --transition-fast: 0.2s ease-in-out;
  --focus-ring: 2px solid var(--color-amber);
  --focus-offset: 2px;

  --touch-target-min: 44px;
}

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

* {
  margin: 0;
  padding: 0;
}

html {
  font-size: 100%;
  -webkit-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);
  font-weight: 400;
  color: var(--color-slate);
  background-color: var(--surface-page);
  min-height: 100vh;
  min-height: 100dvh;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  text-rendering: optimizeLegibility;
  overflow-x: hidden;
}

h1,
h2,
h3,
h4,
h5,
h6 {
  font-family: var(--font-heading);
  font-weight: 600;
  line-height: var(--leading-heading, 1.3);
  color: var(--color-slate);
  overflow-wrap: break-word;
  text-wrap: balance;
}

h1 {
  font-size: var(--text-h1);
  line-height: var(--leading-h1);
  font-weight: 700;
  margin-block-end: var(--space-md);
}

h2 {
  font-size: var(--text-h2);
  line-height: var(--leading-h2);
  font-weight: 600;
  margin-block-end: var(--space-md);
}

h3 {
  font-size: var(--text-h3);
  line-height: var(--leading-h3);
  font-weight: 600;
  margin-block-end: var(--space-sm);
}

h4,
h5,
h6 {
  font-size: var(--text-body);
  line-height: var(--leading-body);
  font-weight: 600;
  margin-block-end: var(--space-xs);
}

p {
  font-size: var(--text-body);
  line-height: var(--leading-body);
  color: var(--color-slate);
  margin-block-end: var(--space-md);
  overflow-wrap: break-word;
}

ul,
ol {
  list-style: none !important;
  margin-block-end: var(--space-md);
  padding-inline-start: 0;
}

ul ul,
ol ul,
ul ol,
ol ol {
  margin-block-start: var(--space-xs);
  margin-block-end: 0;
}

li {
  line-height: var(--leading-body);
  overflow-wrap: break-word;
}

blockquote {
  margin-block-end: var(--space-md);
  padding-inline-start: var(--space-lg);
  border-inline-start: 3px solid var(--color-amber);
  color: var(--color-slate-muted);
  font-style: italic;
}

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

figcaption {
  font-size: var(--text-small);
  line-height: var(--leading-small);
  color: var(--color-slate-muted);
  margin-block-start: var(--space-xs);
}

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

a:hover {
  color: var(--color-amber);
}

a:focus-visible {
  outline: var(--focus-ring);
  outline-offset: var(--focus-offset);
  border-radius: var(--radius-sm);
}

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

img {
  border-radius: var(--radius-md);
  border: var(--border-width) solid var(--color-image-border);
}

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

button {
  background: none;
  border: none;
  cursor: pointer;
  padding: 0;
  min-height: var(--touch-target-min);
  min-width: var(--touch-target-min);
  border-radius: var(--radius-sm);
  transition: background-color var(--transition-fast), color var(--transition-fast), box-shadow var(--transition-fast), transform var(--transition-fast);
}

button:focus-visible {
  outline: var(--focus-ring);
  outline-offset: var(--focus-offset);
}

input,
textarea,
select {
  border: var(--border-width) solid var(--color-border);
  border-radius: var(--radius-sm);
  padding: var(--space-sm) var(--space-md);
  background-color: var(--color-white);
  color: var(--color-slate);
  min-height: var(--touch-target-min);
  transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
}

input:focus-visible,
textarea:focus-visible,
select:focus-visible {
  outline: var(--focus-ring);
  outline-offset: var(--focus-offset);
  border-color: var(--color-amber);
}

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

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

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

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

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

code,
pre {
  font-family: "SFMono-Regular", Consolas, "Liberation Mono", Menlo, monospace;
  font-size: 0.9em;
}

pre {
  background-color: var(--color-ivory);
  border-radius: var(--radius-sm);
  padding: var(--space-md);
  overflow-x: auto;
  margin-block-end: var(--space-md);
}

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

.section {
  padding-block: var(--space-2xl);
}

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

.card:hover {
  box-shadow: var(--shadow-hover);
  transform: translateY(-2px);
}

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

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-sm);
  padding: var(--space-sm) var(--space-lg);
  min-height: var(--touch-target-min);
  border-radius: var(--radius-sm);
  font-weight: 600;
  font-family: var(--font-heading);
  text-decoration: none;
  text-align: center;
  transition: background-color var(--transition-fast), color var(--transition-fast), box-shadow var(--transition-fast), transform var(--transition-fast);
  cursor: pointer;
  border: none;
}

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

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

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

.btn-primary:hover {
  background-color: var(--color-amber-dark);
  color: var(--color-white);
  box-shadow: var(--shadow-small);
}

.btn-secondary {
  background-color: transparent;
  color: var(--color-slate);
  border: var(--border-width) solid var(--color-slate-muted);
}

.btn-secondary:hover {
  border-color: var(--color-slate);
  background-color: var(--color-ivory);
  color: var(--color-slate);
}

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

.btn-mint:hover {
  background-color: #27AE60;
  color: var(--color-white);
  box-shadow: var(--shadow-small);
}

.nav-toggle {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 4px;
  min-height: var(--touch-target-min);
  min-width: var(--touch-target-min);
  padding: var(--space-sm);
  border-radius: var(--radius-sm);
  background: transparent;
  border: none;
  cursor: pointer;
}

.nav-toggle:focus-visible {
  outline: var(--focus-ring);
  outline-offset: var(--focus-offset);
}

.nav-toggle span {
  display: block;
  width: 24px;
  height: 2px;
  background-color: var(--color-slate);
  border-radius: 1px;
  transition: background-color var(--transition-fast), transform var(--transition-fast);
}

.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-md);
  z-index: 1000;
  background-color: var(--color-amber);
  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 (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;
  }
}

@media (max-width: 768px) {
  .section {
    padding-block: var(--space-xl);
  }

  .card {
    padding: var(--space-md);
  }
}
html, body {
  overflow-x: clip;
  max-width: 100%;
}

img, video, svg {
  max-width: 100%;
  height: auto;
}