:root {
  --color-forest-950: #102c26;
  --color-forest-800: #1d463a;
  --color-wood-700: #744b32;
  --color-leather-600: #8a5a3c;
  --color-brass-500: #b88945;
  --color-amber-300: #e8b96b;
  --color-cream-50: #f7f0e4;
  --color-cream-100: #efe3d1;
  --color-ink-900: #20221e;
  --color-muted-600: #5d6258;
  --color-success-700: #2f684a;
  --color-focus-amber: #d99a3d;

  --color-page: var(--color-cream-50);
  --color-surface: var(--color-cream-100);
  --color-text: var(--color-ink-900);
  --color-text-muted: var(--color-muted-600);
  --color-heading: var(--color-forest-950);
  --color-border: rgb(32 34 30 / 16%);
  --color-border-dark: rgb(247 240 228 / 18%);
  --color-on-dark: var(--color-cream-50);
  --color-link: var(--color-forest-950);

  --font-body: "Source Sans 3", "Avenir Next", "Segoe UI", sans-serif;
  --font-heading: "DM Serif Display", Georgia, serif;

  --text-display: clamp(2.75rem, 5.2vw, 4rem);
  --text-h1: clamp(2.375rem, 4.4vw, 3.25rem);
  --text-h2: clamp(2rem, 3.5vw, 2.5rem);
  --text-h3: clamp(1.5rem, 2.4vw, 1.75rem);
  --text-h4: 1.25rem;
  --text-body-large: clamp(1.125rem, 1.5vw, 1.1875rem);
  --text-body: 1rem;
  --text-small: 0.875rem;
  --text-overline: 0.75rem;
  --text-button: 0.9375rem;

  --leading-display: 0.98;
  --leading-h1: 1.02;
  --leading-h2: 1.08;
  --leading-h3: 1.12;
  --leading-h4: 1.2;
  --leading-body: 1.6;
  --leading-small: 1.45;

  --tracking-display: -0.02em;
  --tracking-label: 0.06em;
  --tracking-overline: 0.12em;
  --tracking-button: 0.04em;

  --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: 8rem;

  --container-max: 75rem;
  --container-padding: 1.5rem;
  --reading-max: 42.5rem;

  --radius-none: 0;
  --radius-sm: 0.125rem;
  --radius-md: 0.375rem;
  --radius-lg: 0.625rem;

  --shadow-raised: 0 10px 28px rgb(16 44 38 / 12%);

  --transition-fast: 180ms ease;
  --transition-base: 220ms ease;
}

@media (max-width: 64rem) {
  :root {
    --container-padding: 1.25rem;
  }
}

@media (max-width: 48rem) {
  :root {
    --container-padding: 1rem;
    --text-display: 2.75rem;
    --text-h1: 2.375rem;
    --text-h2: 2rem;
    --text-h3: 1.5rem;
  }
}

*,
*::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: clip;
  background: var(--color-page);
  color: var(--color-text);
  font-family: var(--font-body);
  font-size: var(--text-body);
  font-weight: 400;
  font-synthesis: none;
  line-height: var(--leading-body);
  text-rendering: optimizeLegibility;
}

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

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

img,
video {
  height: auto;
}

svg {
  flex: none;
}

iframe {
  border: 0;
}

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

button,
select {
  text-transform: none;
}

button,
[type="button"],
[type="reset"],
[type="submit"],
[role="button"] {
  cursor: pointer;
}

button:disabled,
[aria-disabled="true"] {
  cursor: not-allowed;
}

input,
select,
textarea {
  width: 100%;
  min-height: 2.75rem;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  background: var(--color-cream-50);
  color: var(--color-ink-900);
  line-height: 1.4;
}

input,
select {
  padding: 0 var(--space-3);
}

textarea {
  min-height: 8rem;
  padding: var(--space-3);
  resize: vertical;
}

select {
  appearance: auto;
}

input[type="checkbox"],
input[type="radio"] {
  width: 1.125rem;
  min-height: 1.125rem;
  padding: 0;
  accent-color: var(--color-forest-950);
}

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

input::placeholder,
textarea::placeholder {
  color: var(--color-muted-600);
  opacity: 1;
}

input:disabled,
select:disabled,
textarea:disabled {
  cursor: not-allowed;
  opacity: 0.65;
}

label {
  display: inline-block;
  margin-block-end: var(--space-2);
  color: var(--color-forest-950);
  font-size: var(--text-small);
  font-weight: 700;
  line-height: 1.3;
}

fieldset {
  margin: 0 0 var(--space-5);
  padding: var(--space-4);
  border: 1px solid var(--color-border);
}

legend {
  padding-inline: var(--space-2);
  color: var(--color-forest-950);
  font-weight: 700;
}

button {
  min-height: 2.75rem;
  margin: 0;
  border: 1px solid transparent;
  border-radius: var(--radius-sm);
  padding: 0.75rem 1rem;
  background: var(--color-forest-950);
  color: var(--color-cream-50);
  font-size: var(--text-button);
  font-weight: 700;
  letter-spacing: var(--tracking-button);
  line-height: 1;
  transition:
    background-color var(--transition-fast),
    border-color var(--transition-fast),
    color var(--transition-fast),
    box-shadow var(--transition-fast);
}

button:hover:not(:disabled) {
  background: var(--color-forest-800);
}

button:focus-visible,
a:focus-visible,
input:focus-visible,
select:focus-visible,
textarea:focus-visible,
summary:focus-visible,
[tabindex]:focus-visible {
  outline: 2px solid var(--color-focus-amber);
  outline-offset: 3px;
}

a {
  color: var(--color-link);
  text-decoration: underline;
  text-decoration-thickness: 1px;
  text-underline-offset: 0.16em;
  transition:
    color var(--transition-fast),
    text-decoration-color var(--transition-fast);
}

a:hover {
  color: var(--color-leather-600);
  text-decoration-color: var(--color-brass-500);
}

hr {
  height: 1px;
  margin: var(--space-6) 0;
  border: 0;
  background: var(--color-brass-500);
}

h1,
h2,
h3,
h4,
h5,
h6,
p,
ul,
ol,
dl,
blockquote,
figure,
table,
pre,
details {
  margin-block-start: 0;
}

h1,
h2,
h3,
h4,
h5,
h6 {
  color: var(--color-heading);
  font-family: var(--font-heading);
  font-weight: 400;
  text-wrap: balance;
}

h1 {
  margin-block-end: var(--space-5);
  font-size: var(--text-h1);
  letter-spacing: var(--tracking-display);
  line-height: var(--leading-h1);
}

h2 {
  margin-block-end: var(--space-4);
  font-size: var(--text-h2);
  letter-spacing: -0.015em;
  line-height: var(--leading-h2);
}

h3 {
  margin-block-end: var(--space-3);
  font-size: var(--text-h3);
  letter-spacing: -0.01em;
  line-height: var(--leading-h3);
}

h4,
h5,
h6 {
  margin-block-end: var(--space-3);
  font-family: var(--font-body);
  font-size: var(--text-h4);
  font-weight: 700;
  line-height: var(--leading-h4);
}

h5 {
  font-size: 1.0625rem;
}

h6 {
  font-size: 1rem;
}

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

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

ul ul,
ul ol,
ol ul,
ol ol {
  margin-block: var(--space-2) 0;
}

li::marker {
  color: var(--color-brass-500);
}

blockquote {
  margin-block-end: var(--space-5);
  border-inline-start: 2px solid var(--color-brass-500);
  padding-inline-start: var(--space-4);
  color: var(--color-forest-950);
  font-family: var(--font-heading);
  font-size: var(--text-h3);
  line-height: var(--leading-h3);
}

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

cite {
  color: var(--color-muted-600);
  font-family: var(--font-body);
  font-size: var(--text-small);
  font-style: normal;
}

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

figcaption {
  margin-block-start: var(--space-2);
  color: var(--color-muted-600);
  font-size: var(--text-small);
  line-height: var(--leading-small);
}

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

dt {
  color: var(--color-forest-950);
  font-weight: 700;
}

dd {
  margin: 0 0 var(--space-3);
}

table {
  width: 100%;
  margin-block-end: var(--space-5);
  border-collapse: collapse;
  border-spacing: 0;
  font-variant-numeric: tabular-nums;
}

caption {
  margin-block-end: var(--space-2);
  color: var(--color-muted-600);
  text-align: start;
}

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

th {
  color: var(--color-forest-950);
  font-weight: 700;
}

pre,
code,
kbd,
samp {
  font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
}

pre {
  overflow-x: auto;
  margin-block-end: var(--space-5);
  padding: var(--space-4);
  background: var(--color-cream-100);
  font-size: var(--text-small);
}

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

strong,
b {
  font-weight: 700;
}

em,
i {
  font-style: italic;
}

mark {
  background: var(--color-amber-300);
  color: var(--color-ink-900);
}

::selection {
  background: var(--color-amber-300);
  color: var(--color-forest-950);
}

:target {
  scroll-margin-block: var(--space-8);
}

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

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

.section {
  padding-block: var(--space-8);
}

.section--compact {
  padding-block: var(--space-6);
}

.section--spacious {
  padding-block: var(--space-9);
}

.surface-light {
  background: var(--color-cream-50);
  color: var(--color-ink-900);
}

.surface-raised {
  background: var(--color-cream-100);
  color: var(--color-ink-900);
}

.surface-dark {
  background: var(--color-forest-950);
  color: var(--color-on-dark);
}

.surface-dark :is(h1, h2, h3, h4, h5, h6) {
  color: var(--color-cream-50);
}

.surface-dark :is(p, li, dt, dd, figcaption, caption, small) {
  color: inherit;
}

.surface-dark a {
  color: var(--color-cream-50);
}

.surface-dark a:hover {
  color: var(--color-amber-300);
}

.surface-dark input,
.surface-dark select,
.surface-dark textarea {
  border-color: var(--color-border-dark);
  background: var(--color-cream-50);
  color: var(--color-ink-900);
}

.surface-dark label,
.surface-dark legend {
  color: var(--color-cream-50);
}

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

.stack > * {
  min-width: 0;
}

.stack > * + * {
  margin-block-start: var(--space-4);
}

.stack--tight > * + * {
  margin-block-start: var(--space-2);
}

.stack--comfortable > * + * {
  margin-block-start: var(--space-5);
}

.stack--loose > * + * {
  margin-block-start: var(--space-6);
}

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

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

.action-group {
  display: flex;
  min-width: 0;
  flex-wrap: wrap;
  align-items: center;
  gap: var(--space-3);
}

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

.button,
a.button {
  display: inline-flex;
  min-height: 2.75rem;
  align-items: center;
  justify-content: center;
  border: 1px solid transparent;
  border-radius: var(--radius-sm);
  padding: 0.75rem 1rem;
  background: var(--color-forest-950);
  color: var(--color-cream-50);
  font-size: var(--text-button);
  font-weight: 700;
  letter-spacing: var(--tracking-button);
  line-height: 1;
  text-align: center;
  text-decoration: none;
  transition:
    background-color var(--transition-fast),
    border-color var(--transition-fast),
    color var(--transition-fast),
    box-shadow var(--transition-fast);
}

.button:hover,
a.button:hover {
  background: var(--color-forest-800);
  color: var(--color-cream-50);
}

.button--leather,
a.button--leather {
  background: var(--color-leather-600);
}

.button--leather:hover,
a.button--leather:hover {
  background: var(--color-wood-700);
}

.button--secondary,
a.button--secondary {
  border-color: var(--color-brass-500);
  background: transparent;
  color: var(--color-forest-950);
}

.button--secondary:hover,
a.button--secondary:hover {
  background: var(--color-cream-100);
  color: var(--color-forest-950);
}

.surface-dark .button--secondary,
.surface-dark a.button--secondary {
  color: var(--color-cream-50);
}

.surface-dark .button--secondary:hover,
.surface-dark a.button--secondary:hover {
  background: var(--color-forest-800);
  color: var(--color-cream-50);
}

.eyebrow {
  margin: 0 0 var(--space-3);
  color: var(--color-brass-500);
  font-size: var(--text-overline);
  font-weight: 700;
  letter-spacing: var(--tracking-overline);
  line-height: 1.2;
  text-transform: uppercase;
}

.rule {
  width: 3rem;
  height: 2px;
  margin: 0 0 var(--space-4);
  border: 0;
  background: var(--color-brass-500);
}

.card {
  min-width: 0;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: var(--space-5);
  background: var(--color-cream-100);
}

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

.frame {
  border: 2px solid var(--color-cream-50);
  outline: 1px solid var(--color-wood-700);
  outline-offset: 0;
}

.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);
  transform: translateY(-200%);
  padding: var(--space-3) var(--space-4);
  background: var(--color-cream-50);
  color: var(--color-forest-950);
  font-weight: 700;
}

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

@media (max-width: 48rem) {
  .section {
    padding-block: var(--space-7);
  }

  .section--compact {
    padding-block: var(--space-5);
  }

  .section--spacious {
    padding-block: var(--space-8);
  }

  .card {
    padding: var(--space-4);
  }

  .action-group > * {
    flex: 1 1 auto;
  }

  .action-group .button,
  .action-group button {
    width: 100%;
  }
}

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

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