:root {
  --color-ivory: #FFFFF0;
  --color-cobalt: #0047AB;
  --color-burgundy: #800020;
  --color-walnut: #4A3728;
  --color-ivory-dark: #3A3A2A;
  --color-walnut-light: #E8DCC8;
  --color-border: rgba(74, 55, 40, 0.2);
  --color-focus-ring: rgba(0, 71, 171, 0.4);
  --font-heading: "Playfair Display", Georgia, "Times New Roman", serif;
  --font-body: "Lato", "Helvetica Neue", Arial, sans-serif;
  --space-xs: 0.25rem;
  --space-sm: 0.5rem;
  --space-md: 1rem;
  --space-lg: 2rem;
  --space-xl: 3rem;
  --space-2xl: 4rem;
  --space-3xl: 6rem;
  --container-max: 1200px;
  --radius-sm: 4px;
  --radius-md: 8px;
  --radius-lg: 16px;
  --shadow-card: 0 2px 8px rgba(0, 0, 0, 0.08);
  --shadow-elevated: 0 4px 16px rgba(0, 0, 0, 0.12);
  --transition-fast: 0.2s ease;
  --transition-medium: 0.3s ease;
}

*,
*::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 {
  min-height: 100vh;
  font-family: var(--font-body);
  font-size: 1rem;
  line-height: 1.6;
  color: var(--color-ivory-dark);
  background-color: var(--color-ivory);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  text-rendering: optimizeLegibility;
  overflow-x: hidden;
}

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

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

button {
  background: none;
  border: none;
  cursor: pointer;
  -webkit-tap-highlight-color: transparent;
}

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

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

a:focus-visible,
button:focus-visible,
input:focus-visible,
textarea:focus-visible,
select:focus-visible {
  outline: 2px solid var(--color-cobalt);
  outline-offset: 2px;
  border-radius: var(--radius-sm);
}

h1,
h2,
h3,
h4,
h5,
h6 {
  font-family: var(--font-heading);
  font-weight: 300;
  letter-spacing: 0.02em;
  line-height: 1.25;
  color: var(--color-cobalt);
  margin-block-end: var(--space-md);
}

h1 {
  font-size: clamp(2rem, 4vw, 2.5rem);
  line-height: 1.2;
}

h2 {
  font-size: clamp(1.6rem, 3vw, 2rem);
  line-height: 1.25;
}

h3 {
  font-size: clamp(1.3rem, 2.5vw, 1.5rem);
  line-height: 1.3;
}

h4 {
  font-size: 1.125rem;
  line-height: 1.4;
}

h5 {
  font-size: 1rem;
  line-height: 1.5;
}

h6 {
  font-size: 0.875rem;
  line-height: 1.5;
}

.display {
  font-family: var(--font-heading);
  font-weight: 300;
  letter-spacing: 0.02em;
  font-size: clamp(2.5rem, 6vw, 3.5rem);
  line-height: 1.15;
  color: var(--color-cobalt);
  margin-block-end: var(--space-lg);
}

p {
  margin-block-end: var(--space-md);
  line-height: 1.6;
}

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

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

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

li {
  line-height: 1.6;
}

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

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

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

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

figcaption {
  font-size: 0.875rem;
  line-height: 1.4;
  color: var(--color-ivory-dark);
  margin-block-start: var(--space-sm);
}

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

small {
  font-size: 0.875rem;
  line-height: 1.4;
}

strong {
  font-weight: 700;
}

em {
  font-style: italic;
}

code,
pre {
  font-family: "SFMono-Regular", Consolas, "Liberation Mono", Menlo, monospace;
  font-size: 0.875rem;
}

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

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

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);
  text-align: start;
  border-block-end: 1px solid var(--color-border);
}

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

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

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

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

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

.surface {
  background-color: var(--color-ivory);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-card);
  padding: var(--space-lg);
}

.surface--elevated {
  box-shadow: var(--shadow-elevated);
}

.surface--dark {
  background-color: var(--color-walnut);
  color: var(--color-walnut-light);
  border-color: rgba(232, 220, 200, 0.2);
}

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

.surface--dark a {
  color: var(--color-walnut-light);
}

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

.surface--dark figcaption {
  color: var(--color-walnut-light);
}

.surface--dark blockquote {
  color: var(--color-walnut-light);
  border-inline-start-color: var(--color-burgundy);
}

.surface > :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);
  font-family: var(--font-body);
  font-size: 1rem;
  font-weight: 700;
  line-height: 1.5;
  border-radius: var(--radius-sm);
  transition: background-color var(--transition-fast), color var(--transition-fast), border-color var(--transition-fast), transform var(--transition-fast);
  text-align: center;
  min-height: 44px;
  min-width: 44px;
  -webkit-tap-highlight-color: transparent;
  user-select: none;
}

.btn:active {
  transform: scale(0.98);
}

.btn--primary {
  background-color: var(--color-cobalt);
  color: var(--color-ivory);
  border: 1px solid var(--color-cobalt);
}

.btn--primary:hover {
  background-color: #003a8c;
  border-color: #003a8c;
  color: var(--color-ivory);
}

.btn--secondary {
  background-color: transparent;
  color: var(--color-cobalt);
  border: 1px solid var(--color-cobalt);
}

.btn--secondary:hover {
  background-color: rgba(0, 71, 171, 0.08);
  color: var(--color-cobalt);
}

.btn--burgundy {
  background-color: var(--color-burgundy);
  color: var(--color-ivory);
  border: 1px solid var(--color-burgundy);
}

.btn--burgundy:hover {
  background-color: #66001a;
  border-color: #66001a;
  color: var(--color-ivory);
}

.btn--outline-light {
  background-color: transparent;
  color: var(--color-walnut-light);
  border: 1px solid var(--color-walnut-light);
}

.btn--outline-light:hover {
  background-color: rgba(232, 220, 200, 0.12);
  color: var(--color-ivory);
}

.btn--sm {
  padding: var(--space-xs) var(--space-md);
  font-size: 0.875rem;
  min-height: 36px;
}

.btn--lg {
  padding: var(--space-md) var(--space-xl);
  font-size: 1.125rem;
  min-height: 52px;
}

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

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

label {
  display: block;
  font-weight: 700;
  margin-block-end: var(--space-xs);
  color: var(--color-ivory-dark);
}

input[type="text"],
input[type="email"],
input[type="tel"],
input[type="url"],
input[type="password"],
input[type="search"],
input[type="number"],
input[type="date"],
input[type="time"],
textarea,
select {
  width: 100%;
  padding: var(--space-sm) var(--space-md);
  font-family: var(--font-body);
  font-size: 1rem;
  line-height: 1.6;
  color: var(--color-ivory-dark);
  background-color: var(--color-ivory);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
  min-height: 44px;
}

input[type="text"]:focus,
input[type="email"]:focus,
input[type="tel"]:focus,
input[type="url"]:focus,
input[type="password"]:focus,
input[type="search"]:focus,
input[type="number"]:focus,
input[type="date"]:focus,
input[type="time"]:focus,
textarea:focus,
select:focus {
  outline: none;
  border-color: var(--color-cobalt);
  box-shadow: 0 0 0 3px var(--color-focus-ring);
}

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

select {
  appearance: none;
  -webkit-appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='8' viewBox='0 0 12 8'%3E%3Cpath d='M1 1l5 5 5-5' stroke='%234A3728' stroke-width='1.5' fill='none' stroke-linecap='round'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right var(--space-md) center;
  padding-inline-end: var(--space-xl);
}

input[type="checkbox"],
input[type="radio"] {
  width: 1.125rem;
  height: 1.125rem;
  accent-color: var(--color-cobalt);
  margin-inline-end: var(--space-sm);
  vertical-align: middle;
}

input[type="checkbox"] + label,
input[type="radio"] + label {
  display: inline;
  font-weight: 400;
  margin-block-end: 0;
}

.stack {
  display: flex;
  flex-direction: column;
  gap: var(--space-md);
  min-width: 0;
}

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

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

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

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

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

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

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

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

.cluster--between {
  justify-content: space-between;
}

.cluster--center {
  justify-content: center;
}

.cluster--end {
  justify-content: flex-end;
}

.visually-hidden {
  position: absolute !important;
  width: 1px !important;
  height: 1px !important;
  padding: 0 !important;
  margin: -1px !important;
  overflow: hidden !important;
  clip: rect(0, 0, 0, 0) !important;
  white-space: nowrap !important;
  border: 0 !important;
}

.skip-link {
  position: absolute;
  top: -100%;
  left: var(--space-md);
  z-index: 10000;
  padding: var(--space-sm) var(--space-lg);
  background-color: var(--color-cobalt);
  color: var(--color-ivory);
  border-radius: var(--radius-sm);
  font-weight: 700;
  transition: top var(--transition-fast);
}

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

@media (max-width: 768px) {
  .container {
    padding-inline: var(--space-md);
  }

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

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

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

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

  h1 {
    font-size: 2rem;
    line-height: 1.2;
  }

  h2 {
    font-size: 1.6rem;
    line-height: 1.25;
  }

  h3 {
    font-size: 1.3rem;
    line-height: 1.3;
  }

  .display {
    font-size: 2.5rem;
    line-height: 1.15;
  }

  .btn--lg {
    padding: var(--space-sm) var(--space-lg);
    font-size: 1rem;
    min-height: 44px;
  }
}

@media (max-width: 480px) {
  .container {
    padding-inline: var(--space-sm);
  }

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

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

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

  .surface {
    padding: var(--space-sm);
  }

  h1 {
    font-size: 1.75rem;
    line-height: 1.2;
  }

  h2 {
    font-size: 1.4rem;
    line-height: 1.25;
  }

  h3 {
    font-size: 1.2rem;
    line-height: 1.3;
  }

  .display {
    font-size: 2rem;
    line-height: 1.15;
  }

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

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