:root {
  --color-mustard: #D4A017;
  --color-dark-blue: #1B2A4A;
  --color-light-gray: #D3D3D3;
  --color-brick-red: #B22222;
  --color-cream: #F9F9F9;
  --color-ink: #1B2A4A;
  --color-white: #FFFFFF;
  --color-focus: #D4A017;
  --color-hover-blue: #2A3D63;

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

  --text-display-size: clamp(2.25rem, 5vw, 3.5rem);
  --text-display-line-height: 1.15;
  --text-h1-size: clamp(1.875rem, 4vw, 2.5rem);
  --text-h1-line-height: 1.2;
  --text-h2-size: clamp(1.5rem, 3vw, 2rem);
  --text-h2-line-height: 1.25;
  --text-h3-size: clamp(1.25rem, 2vw, 1.5rem);
  --text-h3-line-height: 1.35;
  --text-body-size: 1rem;
  --text-body-line-height: 1.5;
  --text-small-size: 0.875rem;
  --text-small-line-height: 1.25;

  --space-1: 4px;
  --space-2: 8px;
  --space-3: 16px;
  --space-4: 24px;
  --space-5: 32px;
  --space-6: 48px;
  --space-7: 64px;
  --space-8: 96px;

  --container-max: 1200px;
  --container-padding: var(--space-4);

  --surface-cream: var(--color-cream);
  --surface-dark: var(--color-dark-blue);
  --surface-light: var(--color-light-gray);

  --shadow-soft: 0 2px 8px rgba(27, 42, 74, 0.08);
  --shadow-card: 0 4px 16px rgba(27, 42, 74, 0.12);
  --shadow-receipt: 0 2px 6px rgba(27, 42, 74, 0.1);

  --radius-0: 0px;
  --radius-1: 4px;
  --radius-2: 8px;
  --radius-3: 12px;

  --border-light: 1px solid var(--color-light-gray);
  --border-mustard: 1px solid var(--color-mustard);
  --border-dashed: 1px dashed var(--color-mustard);

  --transition-fast: 0.2s ease;
  --touch-target-min: 44px;
}

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

html {
  -webkit-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);
  color: var(--color-ink);
  background-color: var(--color-cream);
  min-height: 100vh;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

h1,
h2,
h3,
h4,
h5,
h6 {
  font-family: var(--font-heading);
  font-weight: 700;
  color: var(--color-ink);
  line-height: 1.25;
  margin-block-end: var(--space-3);
}

h1 {
  font-size: var(--text-h1-size);
  line-height: var(--text-h1-line-height);
  margin-block-end: var(--space-4);
}

h2 {
  font-size: var(--text-h2-size);
  line-height: var(--text-h2-line-height);
  margin-block-end: var(--space-3);
}

h3 {
  font-size: var(--text-h3-size);
  line-height: var(--text-h3-line-height);
  margin-block-end: var(--space-2);
}

h4,
h5,
h6 {
  font-size: var(--text-body-size);
  margin-block-end: var(--space-2);
}

p {
  margin-block-end: var(--space-3);
  line-height: var(--text-body-line-height);
}

ul,
ol {
  margin-block-end: var(--space-3);
  padding-inline-start: var(--space-4);
}

li {
  margin-block-end: 0;
}

blockquote {
  margin-block-end: var(--space-3);
  padding-inline-start: var(--space-4);
  border-inline-start: 3px solid var(--color-mustard);
  color: var(--color-ink);
}

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

figcaption {
  font-size: var(--text-small-size);
  line-height: var(--text-small-line-height);
  color: var(--color-ink);
  opacity: 0.8;
  margin-block-start: var(--space-2);
}

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

img {
  vertical-align: middle;
}

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

a:hover {
  color: var(--color-brick-red);
}

a:focus-visible {
  outline: 2px solid var(--color-focus);
  outline-offset: 2px;
}

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

button {
  background: none;
  border: none;
  cursor: pointer;
  padding: 0;
}

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

input,
select,
textarea {
  background-color: var(--color-light-gray);
  border: 1px solid var(--color-dark-blue);
  border-radius: var(--radius-1);
  padding: var(--space-2) var(--space-3);
  width: 100%;
  transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
}

input:focus,
select:focus,
textarea:focus {
  border-color: var(--color-mustard);
  box-shadow: 0 0 0 2px rgba(212, 160, 23, 0.25);
  outline: none;
}

label {
  display: block;
  margin-block-end: var(--space-2);
  font-weight: 600;
}

table {
  width: 100%;
  border-collapse: collapse;
  margin-block-end: var(--space-3);
}

th,
td {
  padding: var(--space-2) var(--space-3);
  border-bottom: var(--border-light);
  text-align: start;
}

th {
  font-weight: 700;
  color: var(--color-dark-blue);
}

hr {
  border: none;
  border-top: var(--border-light);
  margin-block: var(--space-4);
}

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

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: var(--touch-target-min);
  padding: var(--space-2) var(--space-4);
  background-color: var(--color-mustard);
  color: var(--color-dark-blue);
  font-weight: 700;
  text-decoration: none;
  border: none;
  border-radius: var(--radius-1);
  cursor: pointer;
  transition: background-color var(--transition-fast), color var(--transition-fast), box-shadow var(--transition-fast);
}

.btn:hover {
  background-color: var(--color-brick-red);
  color: var(--color-white);
}

.btn:focus-visible {
  outline: 2px solid var(--color-focus);
  outline-offset: 2px;
}

.card {
  background-color: var(--surface-cream);
  border-radius: var(--radius-2);
  border-top: 3px solid var(--color-mustard);
  box-shadow: var(--shadow-card);
  padding: var(--space-4);
}

.receipt-block {
  background-color: var(--surface-cream);
  border: var(--border-dashed);
  border-radius: var(--radius-1);
  box-shadow: var(--shadow-receipt);
  padding: var(--space-3);
}

.surface-dark {
  background-color: var(--surface-dark);
  color: var(--color-white);
}

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

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

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

.surface-light {
  background-color: var(--surface-light);
}

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

.text-uppercase {
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.text-mustard {
  color: var(--color-mustard);
}

.text-white {
  color: var(--color-white);
}

.text-dark-blue {
  color: var(--color-dark-blue);
}

.text-brick-red {
  color: var(--color-brick-red);
}

.bg-mustard {
  background-color: var(--color-mustard);
}

.bg-dark-blue {
  background-color: var(--color-dark-blue);
}

.bg-light-gray {
  background-color: var(--color-light-gray);
}

.bg-brick-red {
  background-color: var(--color-brick-red);
}

.bg-cream {
  background-color: var(--color-cream);
}

.flex {
  display: flex;
  gap: var(--space-3);
}

.flex-col {
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
}

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

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

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

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

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

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

.content-list {
  margin-block-end: var(--space-3);
  padding-inline-start: var(--space-4);
}

.content-list li {
  margin-block-end: var(--space-2);
}

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

p:last-child,
h1:last-child,
h2:last-child,
h3:last-child,
h4:last-child,
h5:last-child,
h6:last-child,
ul:last-child,
ol:last-child,
blockquote:last-child,
figure:last-child,
.card > :last-child,
.receipt-block > :last-child {
  margin-block-end: 0;
}

@media (max-width: 768px) {
  :root {
    --container-padding: var(--space-3);
  }

  .btn {
    width: 100%;
  }
}

@media (max-width: 480px) {
  :root {
    --container-padding: var(--space-2);
  }

  .card,
  .receipt-block {
    padding: var(--space-3);
  }
}