:root {
  --color-cream: #F5F0E6;
  --color-dark-navy: #1B2A4A;
  --color-burnt-orange: #CC5500;
  --color-walnut: #8B5A2B;
  --color-cream-light: #FAF6EF;
  --color-navy-muted: #3A4A6B;
  --color-white: #FFFFFF;

  --font-heading: Georgia, serif;
  --font-body: Arial, sans-serif;

  --text-display: clamp(2.25rem, 5vw, 3rem);
  --text-h1: clamp(2rem, 4vw, 2.5rem);
  --text-h2: clamp(1.625rem, 3vw, 2rem);
  --text-h3: clamp(1.25rem, 2vw, 1.5rem);
  --text-body: 1rem;
  --text-small: 0.875rem;
  --text-caption: 0.75rem;

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

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

  --container-max: 75rem;
  --container-padding: clamp(1rem, 4vw, 2rem);

  --surface-primary: var(--color-cream);
  --surface-elevated: var(--color-cream-light);
  --surface-dark: var(--color-dark-navy);

  --border-subtle: rgba(139, 90, 43, 0.2);
  --border-strong: rgba(139, 90, 43, 0.35);

  --shadow-soft: 0 2px 8px rgba(27, 42, 74, 0.08);
  --shadow-medium: 0 4px 16px rgba(27, 42, 74, 0.1);
  --shadow-large: 0 8px 32px rgba(27, 42, 74, 0.12);

  --radius-small: 0.25rem;
  --radius-medium: 0.5rem;
  --radius-large: 0.75rem;

  --transition-fast: 0.2s ease;
  --transition-medium: 0.3s ease;

  --focus-ring: 0 0 0 3px rgba(204, 85, 0, 0.4);
  --overlay-dark: rgba(27, 42, 74, 0.5);
}

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

html {
  -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-dark-navy);
  background-color: var(--surface-primary);
  min-height: 100vh;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

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

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

button {
  background: none;
  border: none;
  cursor: pointer;
}

a {
  color: var(--color-burnt-orange);
  text-decoration: none;
  transition: color var(--transition-fast);
}

a:hover {
  color: color-mix(in srgb, var(--color-burnt-orange) 85%, black);
}

a:focus-visible,
button:focus-visible,
input:focus-visible,
textarea:focus-visible,
select:focus-visible,
[tabindex]:focus-visible {
  outline: none;
  box-shadow: var(--focus-ring);
  border-radius: var(--radius-small);
}

h1,
h2,
h3,
h4,
h5,
h6 {
  font-family: var(--font-heading);
  font-weight: 400;
  line-height: var(--leading-h1);
  color: var(--color-dark-navy);
  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);
  margin-block-end: var(--space-lg);
}

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

h4 {
  font-size: 1.125rem;
  line-height: 1.4;
  margin-block-end: var(--space-sm);
}

h5 {
  font-size: 1rem;
  line-height: 1.5;
  margin-block-end: var(--space-xs);
}

h6 {
  font-size: var(--text-small);
  line-height: 1.5;
  margin-block-end: var(--space-xs);
}

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

ul,
ol {
  margin-block-end: var(--space-md);
  padding-inline-start: 1.5rem;
}

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

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

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

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

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

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

th,
td {
  padding: var(--space-sm) var(--space-md);
  text-align: start;
  border-block-end: 1px solid var(--border-subtle);
}

th {
  font-family: var(--font-heading);
  font-weight: 400;
  color: var(--color-dark-navy);
}

code,
pre {
  font-family: "Courier New", monospace;
  font-size: 0.9em;
}

pre {
  background-color: var(--color-dark-navy);
  color: var(--color-white);
  padding: var(--space-md);
  border-radius: var(--radius-medium);
  overflow-x: auto;
  margin-block-end: var(--space-md);
}

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

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

.container--wide {
  max-width: 90rem;
}

.surface {
  background-color: var(--surface-elevated);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-medium);
  box-shadow: var(--shadow-soft);
}

.surface--dark {
  background-color: var(--surface-dark);
  color: var(--color-white);
  border-color: rgba(255, 255, 255, 0.1);
}

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

.surface--dark p,
.surface--dark li,
.surface--dark small,
.surface--dark figcaption {
  color: rgba(255, 255, 255, 0.85);
}

.surface--dark a {
  color: var(--color-burnt-orange);
}

.surface--dark a:hover {
  color: color-mix(in srgb, var(--color-burnt-orange) 85%, white);
}

.card {
  background-color: var(--surface-elevated);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-medium);
  box-shadow: var(--shadow-soft);
  padding: var(--space-lg);
}

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

.panel {
  background-color: var(--surface-elevated);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-medium);
  padding: var(--space-lg);
}

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

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-xs);
  padding: 0.75rem 1.5rem;
  background-color: var(--color-burnt-orange);
  color: var(--color-white);
  font-family: var(--font-body);
  font-size: var(--text-body);
  font-weight: 500;
  line-height: 1.4;
  border-radius: var(--radius-small);
  border: 1px solid var(--color-burnt-orange);
  cursor: pointer;
  transition: background-color var(--transition-fast), border-color var(--transition-fast), box-shadow var(--transition-fast);
  min-height: 44px;
  text-align: center;
  -webkit-tap-highlight-color: transparent;
}

.btn:hover {
  background-color: color-mix(in srgb, var(--color-burnt-orange) 85%, black);
  border-color: color-mix(in srgb, var(--color-burnt-orange) 85%, black);
  color: var(--color-white);
}

.btn:focus-visible {
  box-shadow: var(--focus-ring);
}

.btn--secondary {
  background-color: transparent;
  color: var(--color-burnt-orange);
  border-color: var(--color-burnt-orange);
}

.btn--secondary:hover {
  background-color: rgba(204, 85, 0, 0.08);
  border-color: var(--color-burnt-orange);
  color: var(--color-burnt-orange);
}

.btn--ghost {
  background-color: transparent;
  color: var(--color-dark-navy);
  border-color: var(--border-subtle);
}

.btn--ghost:hover {
  background-color: rgba(27, 42, 74, 0.05);
  border-color: var(--border-strong);
  color: var(--color-dark-navy);
}

.btn--on-dark {
  background-color: var(--color-white);
  color: var(--color-dark-navy);
  border-color: var(--color-white);
}

.btn--on-dark:hover {
  background-color: rgba(255, 255, 255, 0.9);
  border-color: rgba(255, 255, 255, 0.9);
  color: var(--color-dark-navy);
}

.btn--small {
  padding: 0.5rem 1rem;
  font-size: var(--text-small);
  min-height: 36px;
}

.btn--large {
  padding: 1rem 2rem;
  font-size: 1.125rem;
  min-height: 52px;
}

input,
textarea,
select {
  width: 100%;
  padding: 0.75rem 1rem;
  background-color: var(--color-cream);
  border: 1px solid var(--border-strong);
  border-radius: var(--radius-small);
  font-family: var(--font-body);
  font-size: var(--text-body);
  line-height: var(--leading-body);
  color: var(--color-dark-navy);
  transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
  min-height: 44px;
}

input::placeholder,
textarea::placeholder {
  color: var(--color-navy-muted);
  opacity: 0.7;
}

input:focus,
textarea:focus,
select:focus {
  outline: none;
  border-color: var(--color-burnt-orange);
  box-shadow: var(--focus-ring);
}

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

label {
  display: block;
  font-size: var(--text-small);
  font-weight: 500;
  color: var(--color-dark-navy);
  margin-block-end: var(--space-xs);
}

.form-group {
  margin-block-end: var(--space-md);
}

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

.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: 0;
  z-index: 1000;
  background-color: var(--color-dark-navy);
  color: var(--color-white);
  padding: var(--space-sm) var(--space-md);
  border-radius: 0 0 var(--radius-small) 0;
  transition: top var(--transition-fast);
}

.skip-link:focus {
  top: 0;
}

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

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

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

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

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

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

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

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

.stack--tight {
  gap: var(--space-sm);
}

.stack--loose {
  gap: var(--space-lg);
}

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

.cluster--tight {
  gap: var(--space-sm);
}

.cluster--loose {
  gap: var(--space-lg);
}

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

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

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

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

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

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

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

.flex-auto {
  flex: 0 0 auto;
}

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

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

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

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

.text-muted {
  color: var(--color-navy-muted);
}

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

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

.text-display {
  font-family: var(--font-heading);
  font-size: var(--text-display);
  line-height: var(--leading-display);
  font-weight: 400;
  color: var(--color-dark-navy);
}

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

.mt-0 { margin-block-start: 0; }
.mt-xs { margin-block-start: var(--space-xs); }
.mt-sm { margin-block-start: var(--space-sm); }
.mt-md { margin-block-start: var(--space-md); }
.mt-lg { margin-block-start: var(--space-lg); }
.mt-xl { margin-block-start: var(--space-xl); }
.mt-xxl { margin-block-start: var(--space-xxl); }

.mb-0 { margin-block-end: 0; }
.mb-xs { margin-block-end: var(--space-xs); }
.mb-sm { margin-block-end: var(--space-sm); }
.mb-md { margin-block-end: var(--space-md); }
.mb-lg { margin-block-end: var(--space-lg); }
.mb-xl { margin-block-end: var(--space-xl); }
.mb-xxl { margin-block-end: var(--space-xxl); }

.p-0 { padding: 0; }
.p-xs { padding: var(--space-xs); }
.p-sm { padding: var(--space-sm); }
.p-md { padding: var(--space-md); }
.p-lg { padding: var(--space-lg); }
.p-xl { padding: var(--space-xl); }
.p-xxl { padding: var(--space-xxl); }

.rounded-sm { border-radius: var(--radius-small); }
.rounded-md { border-radius: var(--radius-medium); }
.rounded-lg { border-radius: var(--radius-large); }

.shadow-soft { box-shadow: var(--shadow-soft); }
.shadow-medium { box-shadow: var(--shadow-medium); }
.shadow-large { box-shadow: var(--shadow-large); }

.border-subtle { border: 1px solid var(--border-subtle); }
.border-strong { border: 1px solid var(--border-strong); }

.divider {
  border: none;
  border-block-start: 1px solid var(--border-subtle);
  margin-block: var(--space-lg);
}

.divider--strong {
  border-block-start-color: var(--border-strong);
}

.divider--accent {
  border-block-start-color: var(--color-burnt-orange);
  border-block-start-width: 2px;
}

.content-list {
  list-style: none;
  padding-inline-start: 0;
  margin-block-end: var(--space-md);
}

.content-list > li {
  padding-block: var(--space-sm);
  border-block-end: 1px solid var(--border-subtle);
}

.content-list > li:last-child {
  border-block-end: none;
  padding-block-end: 0;
}

.content-list > li:first-child {
  padding-block-start: 0;
}

.content-list--spaced > li {
  padding-block: var(--space-md);
}

.content-list--spaced > li:first-child {
  padding-block-start: 0;
}

.content-list--spaced > li:last-child {
  padding-block-end: 0;
}

@media (max-width: 48rem) {
  :root {
    --text-display: clamp(2rem, 6vw, 2.5rem);
    --text-h1: clamp(1.75rem, 5vw, 2.25rem);
    --text-h2: clamp(1.5rem, 4vw, 1.75rem);
    --text-h3: clamp(1.25rem, 3vw, 1.375rem);
  }

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

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

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

  .flex-row,
  .flex-center,
  .flex-between {
    flex-direction: column;
    align-items: stretch;
  }

  .flex-row > *,
  .flex-center > *,
  .flex-between > * {
    width: 100%;
  }

  .cluster {
    gap: var(--space-sm);
  }
}

@media (max-width: 30rem) {
  :root {
    --text-display: clamp(1.75rem, 7vw, 2rem);
    --text-h1: clamp(1.5rem, 6vw, 1.75rem);
    --text-h2: clamp(1.375rem, 5vw, 1.5rem);
    --text-h3: clamp(1.125rem, 4vw, 1.25rem);
  }

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

  .btn {
    width: 100%;
  }

  .btn--small {
    width: auto;
  }
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
}