:root {
  --color-parchment: #EFE3C4;
  --color-parchment-deep: #E5D7B6;
  --color-forest: #667653;
  --color-forest-dark: #525E42;
  --color-clay: #B85F45;
  --color-clay-dark: #9A4E38;
  --color-ink: #40352B;
  --color-sky: #7FA8B8;
  --color-sky-dark: #668B9A;
  --color-white: #FFFFFF;
  --color-ink-15: rgba(64, 53, 43, 0.15);
  --color-ink-10: rgba(64, 53, 43, 0.10);
  --color-ink-05: rgba(64, 53, 43, 0.05);
  --color-ink-60: rgba(64, 53, 43, 0.60);
  --color-ink-80: rgba(64, 53, 43, 0.80);

  --font-heading: 'Playfair Display', serif;
  --font-body: 'Source Sans 3', sans-serif;

  --text-display: 2.5rem;
  --text-h1: 2rem;
  --text-h2: 1.5rem;
  --text-h3: 1.25rem;
  --text-body: 1rem;
  --text-small: 0.875rem;

  --leading-display: 3rem;
  --leading-h1: 2.5rem;
  --leading-h2: 2rem;
  --leading-h3: 1.75rem;
  --leading-body: 1.5rem;
  --leading-small: 1.25rem;

  --space-1: 0.25rem;
  --space-2: 0.5rem;
  --space-3: 0.75rem;
  --space-4: 1rem;
  --space-5: 1.5rem;
  --space-6: 2rem;
  --space-7: 3rem;
  --space-8: 4rem;

  --container-max: 1200px;
  --container-padding: var(--space-5);

  --surface-primary: var(--color-parchment);
  --surface-card: var(--color-parchment-deep);
  --surface-dark: var(--color-ink);
  --surface-forest: var(--color-forest);

  --border-standard: 1px solid var(--color-ink-15);
  --border-strong: 2px solid var(--color-ink-15);

  --shadow-soft: 0 2px 8px var(--color-ink-10);
  --shadow-raised: 0 4px 16px var(--color-ink-10);
  --shadow-hover: 0 8px 24px var(--color-ink-15);

  --radius-small: 4px;
  --radius-medium: 8px;
  --radius-large: 16px;

  --transition-fast: 0.2s ease;
  --transition-smooth: 0.3s ease;

  --focus-ring: 2px solid var(--color-sky);
  --focus-offset: 2px;

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

img,
picture,
svg,
video,
canvas {
  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-sky-dark);
  text-decoration: underline;
  text-underline-offset: 3px;
  transition: color var(--transition-fast);
}

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

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

button:focus-visible,
input:focus-visible,
textarea:focus-visible,
select:focus-visible {
  outline: var(--focus-ring);
  outline-offset: var(--focus-offset);
}

h1,
h2,
h3,
h4,
h5,
h6 {
  font-family: var(--font-heading);
  font-weight: 700;
  color: var(--color-forest);
  line-height: var(--leading-h2);
  margin-block-end: var(--space-4);
}

h1 {
  font-size: var(--text-h1);
  line-height: var(--leading-h1);
  margin-block-end: var(--space-5);
}

h2 {
  font-size: var(--text-h2);
  line-height: var(--leading-h2);
  margin-block-end: var(--space-4);
}

h3 {
  font-size: var(--text-h3);
  line-height: var(--leading-h3);
  margin-block-end: var(--space-3);
}

h4,
h5,
h6 {
  font-size: var(--text-body);
  line-height: var(--leading-body);
  margin-block-end: var(--space-3);
}

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

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

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

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

blockquote {
  margin-block-end: var(--space-4);
  padding-inline-start: var(--space-5);
  border-inline-start: 3px solid var(--color-clay);
  font-style: italic;
  color: var(--color-ink-80);
}

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

figure {
  margin-block-end: var(--space-5);
}

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

figcaption {
  font-size: var(--text-small);
  line-height: var(--leading-small);
  color: var(--color-ink-60);
  margin-block-start: var(--space-2);
}

hr {
  border: none;
  border-block-start: var(--border-standard);
  margin-block: var(--space-6);
}

table {
  width: 100%;
  border-collapse: collapse;
  margin-block-end: var(--space-5);
}

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

th,
td {
  padding: var(--space-3) var(--space-4);
  text-align: start;
  border-block-end: var(--border-standard);
}

th {
  font-weight: 600;
  color: var(--color-forest);
  background-color: var(--color-ink-05);
}

code,
pre {
  font-family: 'Source Code Pro', monospace;
  font-size: var(--text-small);
  line-height: var(--leading-small);
}

pre {
  background-color: var(--color-ink-05);
  padding: var(--space-4);
  border-radius: var(--radius-small);
  overflow-x: auto;
  margin-block-end: var(--space-4);
}

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

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

.sr-only {
  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-4);
  z-index: 10000;
  padding: var(--space-3) var(--space-4);
  background-color: var(--color-forest);
  color: var(--color-white);
  border-radius: var(--radius-small);
  text-decoration: none;
  font-weight: 600;
  transition: top var(--transition-fast);
}

.skip-link:focus {
  top: var(--space-4);
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  min-height: var(--touch-target-min);
  padding: var(--space-3) var(--space-5);
  border-radius: var(--radius-small);
  font-family: var(--font-body);
  font-size: var(--text-body);
  font-weight: 600;
  line-height: var(--leading-body);
  text-decoration: none;
  text-align: center;
  cursor: pointer;
  transition: background-color var(--transition-fast), color var(--transition-fast), transform var(--transition-fast), box-shadow var(--transition-fast);
  border: none;
  white-space: nowrap;
}

.btn:active {
  transform: scale(0.97);
}

.btn:focus-visible {
  outline: var(--focus-ring);
  outline-offset: var(--focus-offset);
}

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

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

.btn-accent {
  background-color: var(--color-clay);
  color: var(--color-white);
}

.btn-accent:hover {
  background-color: var(--color-clay-dark);
  color: var(--color-white);
}

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

.btn-outline:hover {
  background-color: var(--color-forest);
  color: var(--color-white);
}

.btn-google-play {
  background-color: var(--color-clay);
  color: var(--color-white);
  font-weight: 700;
  box-shadow: var(--shadow-soft);
}

.btn-google-play:hover {
  background-color: var(--color-clay-dark);
  color: var(--color-white);
  box-shadow: var(--shadow-raised);
}

.card {
  background-color: var(--surface-card);
  border: var(--border-standard);
  border-radius: var(--radius-medium);
  padding: var(--space-5);
  box-shadow: var(--shadow-soft);
  transition: box-shadow var(--transition-fast), transform var(--transition-fast);
}

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

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

.panel {
  background-color: var(--surface-card);
  border: var(--border-standard);
  border-radius: var(--radius-medium);
  padding: var(--space-5);
}

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

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

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

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

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

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

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

.surface-forest a {
  color: var(--color-parchment);
}

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

.flex {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-4);
}

.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-gap-sm {
  gap: var(--space-2);
}

.flex-gap-md {
  gap: var(--space-4);
}

.flex-gap-lg {
  gap: var(--space-6);
}

.flex-gap-xl {
  gap: var(--space-7);
}

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

.text-display {
  font-family: var(--font-heading);
  font-size: var(--text-display);
  line-height: var(--leading-display);
  font-weight: 700;
  color: var(--color-forest);
  margin-block-end: var(--space-5);
}

.text-muted {
  color: var(--color-ink-60);
}

.text-center {
  text-align: center;
}

.text-start {
  text-align: start;
}

.text-end {
  text-align: end;
}

.mt-1 { margin-block-start: var(--space-1); }
.mt-2 { margin-block-start: var(--space-2); }
.mt-3 { margin-block-start: var(--space-3); }
.mt-4 { margin-block-start: var(--space-4); }
.mt-5 { margin-block-start: var(--space-5); }
.mt-6 { margin-block-start: var(--space-6); }
.mt-7 { margin-block-start: var(--space-7); }
.mt-8 { margin-block-start: var(--space-8); }

.mb-1 { margin-block-end: var(--space-1); }
.mb-2 { margin-block-end: var(--space-2); }
.mb-3 { margin-block-end: var(--space-3); }
.mb-4 { margin-block-end: var(--space-4); }
.mb-5 { margin-block-end: var(--space-5); }
.mb-6 { margin-block-end: var(--space-6); }
.mb-7 { margin-block-end: var(--space-7); }
.mb-8 { margin-block-end: var(--space-8); }

.section {
  padding-block: var(--space-7);
}

.section-sm {
  padding-block: var(--space-5);
}

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

.ratio-4-3 {
  aspect-ratio: 4 / 3;
  width: 100%;
  object-fit: cover;
}

.ratio-16-9 {
  aspect-ratio: 16 / 9;
  width: 100%;
  object-fit: cover;
}

.ratio-1-1 {
  aspect-ratio: 1 / 1;
  width: 100%;
  object-fit: cover;
}

.img-parchment-frame {
  border: 6px solid var(--color-parchment-deep);
  border-radius: var(--radius-medium);
  box-shadow: var(--shadow-soft);
}

.img-rotated-left {
  transform: rotate(-1.5deg);
}

.img-rotated-right {
  transform: rotate(1.5deg);
}

.list-unstyled {
  list-style: none;
  padding-inline-start: 0;
  margin-block-end: 0;
}

.list-inline {
  list-style: none;
  padding-inline-start: 0;
  margin-block-end: 0;
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-3);
}

.list-inline > li {
  min-width: 0;
  flex-shrink: 1;
}

.content-list {
  list-style: disc;
  padding-inline-start: var(--space-5);
  margin-block-end: var(--space-4);
}

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

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

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

@media (max-width: 768px) {
  :root {
    --text-display: 2rem;
    --leading-display: 2.5rem;
    --text-h1: 1.75rem;
    --leading-h1: 2.25rem;
    --text-h2: 1.375rem;
    --leading-h2: 1.875rem;
    --text-h3: 1.125rem;
    --leading-h3: 1.625rem;
    --container-padding: var(--space-4);
  }

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

  .section-lg {
    padding-block: var(--space-7);
  }

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

  .flex-gap-lg {
    gap: var(--space-4);
  }

  .flex-gap-xl {
    gap: var(--space-5);
  }
}

@media (max-width: 480px) {
  :root {
    --text-display: 1.75rem;
    --leading-display: 2.25rem;
    --text-h1: 1.5rem;
    --leading-h1: 2rem;
    --text-h2: 1.25rem;
    --leading-h2: 1.75rem;
    --text-h3: 1.125rem;
    --leading-h3: 1.5rem;
    --container-padding: var(--space-3);
  }

  .section {
    padding-block: var(--space-5);
  }

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

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

  .btn {
    width: 100%;
    white-space: normal;
  }
}