:root {
  --color-ivory: #FFFFF0;
  --color-cobalt: #0047AB;
  --color-coral: #FF4040;
  --color-graphite: #333333;
  --color-silver: #C0C0C0;
  --color-white: #FFFFFF;
  --color-black: #000000;
  --color-overlay: rgba(0, 0, 0, 0.5);
  --color-cobalt-dark: #003A8C;

  --font-heading: 'Playfair Display', serif;
  --font-body: 'Inter', sans-serif;

  --text-display-size: clamp(3rem, 8vw, 6rem);
  --text-display-line-height: 1;
  --text-display-letter-spacing: -0.02em;
  --text-h1-size: clamp(2.5rem, 6vw, 4.5rem);
  --text-h1-line-height: 1.1;
  --text-h1-letter-spacing: -0.01em;
  --text-h2-size: clamp(2rem, 4.5vw, 3rem);
  --text-h2-line-height: 1.2;
  --text-h2-letter-spacing: 0em;
  --text-h3-size: clamp(1.5rem, 3vw, 2rem);
  --text-h3-line-height: 1.3;
  --text-h3-letter-spacing: 0em;
  --text-h4-size: clamp(1.25rem, 2.5vw, 1.5rem);
  --text-h4-line-height: 1.4;
  --text-h4-letter-spacing: 0em;
  --text-body-size: 1.125rem;
  --text-body-line-height: 1.6;
  --text-body-letter-spacing: 0em;
  --text-caption-size: 0.875rem;
  --text-caption-line-height: 1.4;
  --text-caption-letter-spacing: 0.02em;

  --space-4xs: 4px;
  --space-3xs: 8px;
  --space-2xs: 16px;
  --space-xs: 24px;
  --space-sm: 32px;
  --space-md: 48px;
  --space-lg: 64px;
  --space-xl: 96px;
  --space-2xl: 128px;
  --space-3xl: 192px;

  --container-max: 1440px;
  --container-gutter-desktop: 24px;
  --container-gutter-mobile: 16px;

  --radius-none: 0px;
  --radius-sm: 4px;
  --radius-md: 8px;
  --radius-lg: 16px;

  --shadow-card: 0 4px 12px rgba(0, 0, 0, 0.08);
  --shadow-card-hover: 0 8px 24px rgba(0, 0, 0, 0.12);
  --shadow-modal: 0 8px 24px rgba(0, 0, 0, 0.12);

  --border-thin: 1px;
  --border-color: var(--color-silver);
  --border-color-strong: var(--color-graphite);

  --transition-fast: 150ms ease;
  --transition-base: 250ms ease;
  --transition-slow: 400ms ease;
}

*,
*::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-size);
  line-height: var(--text-body-line-height);
  letter-spacing: var(--text-body-letter-spacing);
  color: var(--color-graphite);
  background-color: var(--color-ivory);
  min-height: 100vh;
  min-width: 320px;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

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;
  padding: 0;
}

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

a:hover {
  color: var(--color-cobalt-dark);
}

ul,
ol {
  list-style: none;
}

h1,
h2,
h3,
h4,
h5,
h6 {
  font-family: var(--font-heading);
  font-weight: 700;
  color: var(--color-graphite);
  overflow-wrap: break-word;
  word-wrap: break-word;
  hyphens: auto;
}

h1,
.h1 {
  font-size: var(--text-h1-size);
  line-height: var(--text-h1-line-height);
  letter-spacing: var(--text-h1-letter-spacing);
  margin-block-end: var(--space-xs);
}

h2,
.h2 {
  font-size: var(--text-h2-size);
  line-height: var(--text-h2-line-height);
  letter-spacing: var(--text-h2-letter-spacing);
  margin-block-end: var(--space-xs);
}

h3,
.h3 {
  font-size: var(--text-h3-size);
  line-height: var(--text-h3-line-height);
  letter-spacing: var(--text-h3-letter-spacing);
  margin-block-end: var(--space-2xs);
}

h4,
.h4 {
  font-size: var(--text-h4-size);
  line-height: var(--text-h4-line-height);
  letter-spacing: var(--text-h4-letter-spacing);
  margin-block-end: var(--space-2xs);
}

h5,
.h5 {
  font-size: var(--text-body-size);
  line-height: var(--text-body-line-height);
  letter-spacing: var(--text-body-letter-spacing);
  margin-block-end: var(--space-2xs);
}

h6,
.h6 {
  font-size: var(--text-caption-size);
  line-height: var(--text-caption-line-height);
  letter-spacing: var(--text-caption-letter-spacing);
  margin-block-end: var(--space-2xs);
}

.display {
  font-size: var(--text-display-size);
  line-height: var(--text-display-line-height);
  letter-spacing: var(--text-display-letter-spacing);
  margin-block-end: var(--space-sm);
}

p {
  margin-block-end: var(--space-2xs);
}

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

blockquote {
  margin-block-end: var(--space-xs);
  padding-inline-start: var(--space-xs);
  border-inline-start: 4px solid var(--color-cobalt);
  font-style: italic;
}

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

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

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

ul.content-list,
ol.content-list {
  padding-inline-start: var(--space-xs);
}

ul.content-list li,
ol.content-list li {
  margin-block-end: var(--space-3xs);
}

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

ul.content-list {
  list-style: disc;
}

ol.content-list {
  list-style: decimal;
}

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

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

figcaption {
  font-size: var(--text-caption-size);
  line-height: var(--text-caption-line-height);
  letter-spacing: var(--text-caption-letter-spacing);
  color: var(--color-graphite);
  margin-block-start: var(--space-3xs);
}

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

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

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

th,
td {
  padding: var(--space-3xs) var(--space-2xs);
  text-align: start;
  border-block-end: var(--border-thin) solid var(--border-color);
}

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

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

.container--medium {
  max-width: 1100px;
}

.container--wide {
  max-width: 1600px;
}

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

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

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

.surface-card {
  background-color: var(--color-ivory);
  border: var(--border-thin) solid var(--border-color);
  border-radius: var(--radius-md);
  padding: var(--space-xs);
  box-shadow: none;
  transition: box-shadow var(--transition-base), transform var(--transition-base);
}

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

.surface-panel {
  background-color: var(--color-ivory);
  border: var(--border-thin) solid var(--border-color);
  border-radius: var(--radius-md);
  padding: var(--space-xs);
}

.surface-flat {
  background-color: var(--color-ivory);
  border-radius: var(--radius-none);
  padding: var(--space-xs);
}

.surface-graphite {
  background-color: var(--color-graphite);
  color: var(--color-ivory);
  border-radius: var(--radius-none);
  padding: var(--space-xs);
}

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

.surface-graphite a {
  color: var(--color-coral);
}

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

.surface-silver {
  background-color: var(--color-silver);
  border-radius: var(--radius-none);
  padding: var(--space-xs);
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-3xs);
  padding: var(--space-2xs) var(--space-xs);
  border-radius: var(--radius-sm);
  font-family: var(--font-body);
  font-size: var(--text-body-size);
  font-weight: 500;
  line-height: 1.2;
  letter-spacing: var(--text-body-letter-spacing);
  text-align: center;
  white-space: nowrap;
  transition: background-color var(--transition-fast), color var(--transition-fast), border-color var(--transition-fast), box-shadow var(--transition-fast);
  border: var(--border-thin) solid transparent;
}

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

.btn--primary:hover {
  background-color: var(--color-cobalt-dark);
  border-color: var(--color-cobalt-dark);
  color: var(--color-white);
}

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

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

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

.btn--coral:hover {
  background-color: #E03636;
  border-color: #E03636;
  color: var(--color-white);
}

.btn--ghost {
  background-color: transparent;
  color: var(--color-cobalt);
  border-color: transparent;
}

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

.btn--large {
  padding: var(--space-2xs) var(--space-sm);
  font-size: 1.25rem;
}

.btn--small {
  padding: var(--space-3xs) var(--space-2xs);
  font-size: var(--text-caption-size);
}

.btn--block {
  display: flex;
  width: 100%;
}

.form-label {
  display: block;
  font-size: var(--text-caption-size);
  font-weight: 500;
  color: var(--color-graphite);
  margin-block-end: var(--space-3xs);
}

.form-input,
.form-textarea,
.form-select {
  width: 100%;
  padding: var(--space-3xs) var(--space-2xs);
  background-color: var(--color-ivory);
  border: none;
  border-block-end: 2px solid var(--color-graphite);
  border-radius: var(--radius-none);
  font-family: var(--font-body);
  font-size: var(--text-body-size);
  line-height: var(--text-body-line-height);
  letter-spacing: var(--text-body-letter-spacing);
  color: var(--color-graphite);
  transition: border-color var(--transition-fast);
}

.form-input:focus,
.form-textarea:focus,
.form-select:focus {
  outline: none;
  border-block-end-color: var(--color-cobalt);
}

.form-input::placeholder,
.form-textarea::placeholder {
  color: var(--color-silver);
}

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

.form-select {
  appearance: none;
  -webkit-appearance: none;
  -moz-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='%23333333' stroke-width='2' fill='none'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right var(--space-2xs) center;
  padding-inline-end: var(--space-sm);
}

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

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

.flex {
  display: flex;
  gap: var(--space-2xs);
}

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

.flex--column {
  flex-direction: column;
}

.flex--center {
  align-items: center;
  justify-content: center;
}

.flex--between {
  align-items: center;
  justify-content: space-between;
}

.flex--start {
  align-items: flex-start;
}

.flex--end {
  align-items: flex-end;
}

.flex--stretch {
  align-items: stretch;
}

.flex > * {
  min-width: 0;
  flex-shrink: 1;
}

.flex--no-shrink > * {
  flex-shrink: 0;
}

.flex--grow > * {
  flex-grow: 1;
}

.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-2xs);
  z-index: 1000;
  background-color: var(--color-cobalt);
  color: var(--color-white);
  padding: var(--space-3xs) var(--space-2xs);
  border-radius: var(--radius-sm);
  transition: top var(--transition-fast);
}

.skip-link:focus {
  top: var(--space-2xs);
  color: var(--color-white);
}

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

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

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

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

  .display {
    font-size: clamp(2.5rem, 10vw, 4rem);
  }

  .btn--large {
    padding: var(--space-2xs) var(--space-xs);
    font-size: 1.125rem;
  }
}

@media (max-width: 480px) {
  .display {
    font-size: clamp(2rem, 12vw, 3rem);
  }

  .flex--column-mobile {
    flex-direction: column;
  }
}