:root {
  --color-ivoire: #FFFFF0;
  --color-prune: #4B2E3B;
  --color-bleu-electrique: #6A8EAE;
  --color-pistache: #A3C585;
  --color-ivoire-dim: #F5F5E6;
  --color-prune-deep: #3A202B;
  --color-white: #FFFFFF;
  --color-black-soft: #1A1A1A;
  --color-border-soft: rgba(75, 46, 59, 0.2);
  --color-overlay-light: rgba(255, 255, 240, 0.8);
  --color-overlay-dark: rgba(26, 26, 26, 0.6);
  --font-heading: "Playfair Display", Georgia, serif;
  --font-body: "Inter", system-ui, -apple-system, sans-serif;
  --text-display-size: clamp(2.5rem, 5vw, 4.5rem);
  --text-h1-size: clamp(2rem, 3.5vw, 3rem);
  --text-h2-size: clamp(1.75rem, 2.5vw, 2.25rem);
  --text-h3-size: clamp(1.375rem, 2vw, 1.5rem);
  --text-body-large: 1.125rem;
  --text-body: 1rem;
  --text-caption: 0.875rem;
  --leading-display: 1.1;
  --leading-h1: 1.2;
  --leading-h2: 1.3;
  --leading-h3: 1.4;
  --leading-body: 1.6;
  --leading-caption: 1.5;
  --space-1: 4px;
  --space-2: 8px;
  --space-3: 16px;
  --space-4: 24px;
  --space-5: 32px;
  --space-6: 48px;
  --space-7: 64px;
  --space-8: 96px;
  --space-9: 128px;
  --container-max: 1200px;
  --container-padding-mobile: 24px;
  --container-padding-desktop: 48px;
  --radius-small: 4px;
  --radius-medium: 8px;
  --radius-large: 16px;
  --radius-pill: 999px;
  --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;
  --focus-ring: 2px solid var(--color-bleu-electrique);
  --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);
  line-height: var(--leading-body);
  color: var(--color-prune);
  background-color: var(--color-ivoire);
  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);
  color: var(--color-prune-deep);
  line-height: var(--leading-h1);
  font-weight: 700;
  margin-block-end: var(--space-4);
}

h1 {
  font-size: var(--text-h1-size);
  line-height: var(--leading-h1);
}

h2 {
  font-size: var(--text-h2-size);
  line-height: var(--leading-h2);
  font-weight: 600;
}

h3 {
  font-size: var(--text-h3-size);
  line-height: var(--leading-h3);
  font-weight: 600;
}

h4,
h5,
h6 {
  font-size: var(--text-body-large);
  line-height: var(--leading-body);
  font-weight: 600;
}

p {
  font-size: var(--text-body);
  line-height: var(--leading-body);
  color: var(--color-prune);
  margin-block-end: var(--space-4);
}

a {
  color: var(--color-bleu-electrique);
  text-decoration: underline;
  text-underline-offset: 3px;
  transition: color var(--transition-fast);
}

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

a:focus-visible {
  outline: var(--focus-ring);
  outline-offset: 2px;
  border-radius: var(--radius-small);
}

ul,
ol {
  margin-block-end: var(--space-4);
  padding-inline-start: var(--space-5);
}

li {
  line-height: var(--leading-body);
}

blockquote {
  margin-block-end: var(--space-4);
  padding-inline-start: var(--space-4);
  border-inline-start: 3px solid var(--color-pistache);
  font-style: italic;
  color: var(--color-prune-deep);
}

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

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

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

input,
textarea,
select,
button {
  font-family: inherit;
  font-size: inherit;
  line-height: inherit;
  color: inherit;
}

button {
  background: none;
  border: none;
  cursor: pointer;
  min-height: var(--touch-target-min);
  min-width: var(--touch-target-min);
  padding: var(--space-2) var(--space-3);
  border-radius: var(--radius-small);
  transition: background-color var(--transition-fast),
    color var(--transition-fast),
    border-color var(--transition-fast),
    box-shadow var(--transition-fast);
}

button:focus-visible {
  outline: var(--focus-ring);
  outline-offset: 2px;
}

input,
textarea,
select {
  width: 100%;
  padding: var(--space-3);
  border: 1px solid var(--color-border-soft);
  border-radius: var(--radius-small);
  background-color: var(--color-white);
  color: var(--color-prune);
  transition: border-color var(--transition-fast),
    box-shadow var(--transition-fast);
}

input:focus,
textarea:focus,
select:focus {
  outline: none;
  border-color: var(--color-bleu-electrique);
  box-shadow: 0 0 0 3px rgba(106, 142, 174, 0.2);
}

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

label {
  display: block;
  margin-block-end: var(--space-2);
  font-weight: 500;
  color: var(--color-prune-deep);
}

table {
  width: 100%;
  border-collapse: collapse;
  margin-block-end: var(--space-4);
}

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

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

hr {
  border: none;
  border-block-start: 1px solid var(--color-border-soft);
  margin-block: var(--space-6);
}

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

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

.surface-card {
  background-color: var(--color-white);
  border: 1px solid var(--color-border-soft);
  border-radius: var(--radius-medium);
  box-shadow: var(--shadow-card);
  padding: var(--space-4);
}

.surface-panel {
  background-color: var(--color-overlay-light);
  border: 1px solid var(--color-border-soft);
  border-radius: var(--radius-medium);
  padding: var(--space-4);
}

.surface-elevated {
  background-color: var(--color-white);
  border: 1px solid var(--color-border-soft);
  border-radius: var(--radius-large);
  box-shadow: var(--shadow-elevated);
  padding: var(--space-5);
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  font-weight: 600;
  text-decoration: none;
  border-radius: var(--radius-small);
  padding: var(--space-3) var(--space-4);
  min-height: var(--touch-target-min);
  transition: background-color var(--transition-fast),
    color var(--transition-fast),
    border-color var(--transition-fast),
    transform var(--transition-fast);
}

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

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

.btn-secondary {
  background-color: var(--color-bleu-electrique);
  color: var(--color-white);
  border: 1px solid var(--color-bleu-electrique);
}

.btn-secondary:hover {
  background-color: #5a7a9a;
  border-color: #5a7a9a;
  color: var(--color-white);
}

.btn-tertiary {
  background-color: transparent;
  color: var(--color-prune);
  border: 1px solid transparent;
  text-decoration: underline;
  text-underline-offset: 3px;
}

.btn-tertiary:hover {
  color: var(--color-bleu-electrique);
  text-decoration-color: var(--color-bleu-electrique);
}

.tag {
  display: inline-flex;
  align-items: center;
  gap: var(--space-1);
  padding: var(--space-1) var(--space-3);
  border-radius: var(--radius-pill);
  font-size: var(--text-caption);
  line-height: var(--leading-caption);
  font-weight: 500;
  background-color: var(--color-pistache);
  color: var(--color-prune-deep);
}

.section-label {
  display: inline-block;
  font-size: var(--text-caption);
  line-height: var(--leading-caption);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--color-bleu-electrique);
  margin-block-end: var(--space-2);
}

.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-3);
  z-index: 1000;
  background-color: var(--color-prune);
  color: var(--color-white);
  padding: var(--space-3) var(--space-4);
  border-radius: var(--radius-small);
  text-decoration: none;
  transition: top var(--transition-fast);
}

.skip-link:focus {
  top: var(--space-3);
}

.flex {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-3);
  min-width: 0;
}

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

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

.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;
  justify-content: flex-start;
}

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

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

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

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

.grid-auto {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(min(280px, 100%), 1fr));
  gap: var(--space-4);
}

.grid-auto > * {
  min-width: 0;
}

.content-list {
  list-style: none;
  padding-inline-start: 0;
  margin-block-end: var(--space-4);
}

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

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

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

@media (min-width: 768px) {
  .container {
    padding-inline: var(--container-padding-desktop);
  }

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

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

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

  .surface-elevated {
    padding: var(--space-6);
  }
}

@media (min-width: 1024px) {
  .section {
    padding-block: var(--space-9);
  }
}