:root {
  --color-navy: #172033;
  --color-teal: #3F7068;
  --color-coral: #C86E58;
  --color-sand: #E8E0CF;
  --color-mist: #B8D3DC;
  --color-ink: #172033;
  --color-paper: #E8E0CF;
  --color-white: #ffffff;

  --font-heading: Georgia, serif;
  --font-body: "Helvetica Neue", Arial, sans-serif;

  --text-display: clamp(3rem, 5vw + 1rem, 4.5rem);
  --text-h1: clamp(2.25rem, 4vw + 0.5rem, 3rem);
  --text-h2: clamp(1.75rem, 3vw + 0.5rem, 2.25rem);
  --text-h3: clamp(1.4rem, 2vw + 0.5rem, 1.75rem);
  --text-h4: clamp(1.15rem, 1.5vw + 0.5rem, 1.25rem);
  --text-body: 1rem;
  --text-caption: 0.875rem;

  --leading-display: 1.1;
  --leading-h1: 1.2;
  --leading-h2: 1.3;
  --leading-h3: 1.4;
  --leading-h4: 1.5;
  --leading-body: 1.6;
  --leading-caption: 1.5;

  --tracking-heading: 0.02em;

  --space-xs: 0.25rem;
  --space-sm: 0.5rem;
  --space-md: 1rem;
  --space-lg: 1.5rem;
  --space-xl: 2rem;
  --space-2xl: 3rem;
  --space-3xl: 4rem;
  --space-4xl: 6rem;

  --container-max: 1200px;
  --container-gutter: 1.5rem;

  --radius-sm: 4px;
  --radius-md: 8px;
  --radius-lg: 12px;
  --radius-full: 999px;

  --shadow-soft: 0 4px 12px rgba(23, 32, 51, 0.1);
  --shadow-lift: 0 8px 24px rgba(23, 32, 51, 0.15);

  --border-teal: 1px solid var(--color-teal);
  --border-mist: 1px solid var(--color-mist);

  --transition-color: color 0.2s ease, background-color 0.2s ease, border-color 0.2s ease;
  --transition-transform: transform 0.3s ease, box-shadow 0.3s ease;
}

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

html {
  -webkit-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-ink);
  background-color: var(--color-sand);
  min-height: 100vh;
  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;
}

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

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

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

h1,
h2,
h3,
h4,
h5,
h6 {
  font-family: var(--font-heading);
  letter-spacing: var(--tracking-heading);
  color: var(--color-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);
}

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

h4 {
  font-size: var(--text-h4);
  line-height: var(--leading-h4);
}

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

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

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

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

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

hr {
  border: none;
  border-top: var(--border-mist);
  margin-block: var(--space-xl);
}

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

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

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


.surface-navy a {
  color: var(--color-mist);
}

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

.card {
  background-color: var(--color-sand);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-soft);
  padding: var(--space-lg);
}

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

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.625rem 1.5rem;
  border-radius: var(--radius-full);
  font-family: var(--font-body);
  font-size: var(--text-body);
  font-weight: 600;
  line-height: 1.4;
  text-align: center;
  transition: var(--transition-color), var(--transition-transform);
  white-space: nowrap;
}

.btn-primary {
  background-color: var(--color-coral);
  color: var(--color-white);
  border: 2px solid var(--color-coral);
}

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

.btn-secondary {
  background-color: transparent;
  color: var(--color-teal);
  border: 2px solid var(--color-teal);
}

.btn-secondary:hover {
  background-color: var(--color-teal);
  color: var(--color-white);
}

.btn-on-dark {
  background-color: var(--color-coral);
  color: var(--color-white);
  border: 2px solid var(--color-coral);
}

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

.btn-on-dark-secondary {
  background-color: transparent;
  color: var(--color-paper);
  border: 2px solid var(--color-paper);
}

.btn-on-dark-secondary:hover {
  background-color: var(--color-paper);
  color: var(--color-navy);
}

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

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

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

.flex-column > * {
  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-wrap: wrap;
}

.flex-between > * {
  min-width: 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: 50%;
  transform: translateX(-50%);
  background-color: var(--color-coral);
  color: var(--color-white);
  padding: var(--space-sm) var(--space-lg);
  border-radius: var(--radius-sm);
  z-index: 10000;
  font-weight: 600;
}

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

input[type="text"],
input[type="email"],
input[type="tel"],
input[type="url"],
input[type="search"],
input[type="number"],
input[type="password"],
textarea,
select {
  width: 100%;
  padding: 0.625rem 0.875rem;
  border: 1px solid var(--color-mist);
  border-radius: var(--radius-sm);
  background-color: var(--color-white);
  color: var(--color-ink);
  font-family: var(--font-body);
  font-size: var(--text-body);
  line-height: var(--leading-body);
  transition: var(--transition-color);
}

input[type="text"]:focus,
input[type="email"]:focus,
input[type="tel"]:focus,
input[type="url"]:focus,
input[type="search"]:focus,
input[type="number"]:focus,
input[type="password"]:focus,
textarea:focus,
select:focus {
  outline: none;
  border-color: var(--color-teal);
  box-shadow: 0 0 0 2px rgba(63, 112, 104, 0.2);
}

textarea {
  min-height: 8rem;
  resize: vertical;
}

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

@media (max-width: 768px) {
  :root {
    --container-gutter: 1rem;
  }

  h1 {
    font-size: clamp(1.75rem, 6vw, 2.25rem);
  }

  h2 {
    font-size: clamp(1.5rem, 5vw, 1.75rem);
  }

  h3 {
    font-size: clamp(1.25rem, 4vw, 1.4rem);
  }

  h4 {
    font-size: 1.1rem;
  }

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

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