:root {
  --color-tlo-kremowe: #F7F1E3;
  --color-tlo-kremowe-ciemne: #EFE6D2;
  --color-atrament-lesny: #1F3D2B;
  --color-atrament-lesny-jasny: #3E5E48;
  --color-cegla: #A6402D;
  --color-cegla-ciemna: #7F2F21;
  --color-musztarda: #D9A441;
  --color-musztarda-jasna: #F2D48A;
  --color-papier-czysty: #FFFDF7;
  --color-linia-mapy: #D8CDB8;
  --color-tekst-na-ciemnym: #F7F1E3;

  --font-heading: "Fraunces", serif;
  --font-body: "Inter", sans-serif;

  --text-display-size: clamp(1.875rem, 1.3rem + 2.4vw, 3.5rem);
  --text-display-line-height: 1.1;
  --text-display-letter-spacing: -0.02em;
  --text-display-weight: 600;

  --text-h1-size: clamp(2rem, 1.5rem + 2vw, 2.75rem);
  --text-h1-line-height: 1.15;
  --text-h1-letter-spacing: -0.01em;
  --text-h1-weight: 600;

  --text-h2-size: clamp(1.5rem, 1.2rem + 1.2vw, 2rem);
  --text-h2-line-height: 1.2;
  --text-h2-letter-spacing: 0;
  --text-h2-weight: 600;

  --text-h3-size: 1.5rem;
  --text-h3-line-height: 1.25;
  --text-h3-letter-spacing: 0;
  --text-h3-weight: 600;

  --text-h4-size: 1.25rem;
  --text-h4-line-height: 1.3;
  --text-h4-letter-spacing: 0;
  --text-h4-weight: 600;

  --text-lead-size: 1.25rem;
  --text-lead-line-height: 1.6;
  --text-lead-letter-spacing: 0;
  --text-lead-weight: 400;

  --text-body-size: 1.0625rem;
  --text-body-line-height: 1.7;
  --text-body-letter-spacing: 0;
  --text-body-weight: 400;

  --text-small-size: 0.875rem;
  --text-small-line-height: 1.5;
  --text-small-letter-spacing: 0.01em;
  --text-small-weight: 400;

  --text-caption-size: 0.75rem;
  --text-caption-line-height: 1.4;
  --text-caption-letter-spacing: 0.04em;
  --text-caption-weight: 500;

  --text-button-size: 1rem;
  --text-button-line-height: 1;
  --text-button-letter-spacing: 0.01em;
  --text-button-weight: 600;

  --space-2xs: 4px;
  --space-xs: 8px;
  --space-sm: 12px;
  --space-md: 16px;
  --space-lg: 24px;
  --space-xl: 32px;
  --space-2xl: 48px;
  --space-3xl: 64px;
  --space-4xl: 96px;
  --space-5xl: 128px;

  --container-max: 1200px;
  --container-padding-mobile: 24px;
  --container-padding-desktop: 48px;

  --text-container-max: 720px;

  --surface-card-bg: var(--color-papier-czysty);
  --surface-card-border: 1px solid var(--color-linia-mapy);
  --surface-card-radius: 12px;
  --surface-card-shadow: 0 1px 2px rgba(31, 61, 43, 0.06), 0 4px 12px rgba(31, 61, 43, 0.04);
  --surface-card-shadow-hover: 0 2px 4px rgba(31, 61, 43, 0.08), 0 8px 20px rgba(31, 61, 43, 0.06);

  --surface-accent-border: 2px solid var(--color-cegla);

  --radius-card: 12px;
  --radius-button: 8px;
  --radius-field: 8px;
  --radius-small: 4px;
  --radius-image: 8px;

  --focus-ring-color: var(--color-musztarda);
  --focus-ring-width: 2px;
  --focus-ring-offset: 2px;

  --transition-fast: 150ms ease-out;
  --transition-medium: 200ms ease-out;
  --transition-slow: 300ms ease-out;
}

*,
*::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);
  font-weight: var(--text-body-weight);
  line-height: var(--text-body-line-height);
  letter-spacing: var(--text-body-letter-spacing);
  color: var(--color-atrament-lesny);
  background-color: var(--color-tlo-kremowe);
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

main {
  flex: 1 0 auto;
  width: 100%;
}

h1,
h2,
h3,
h4,
h5,
h6 {
  font-family: var(--font-heading);
  font-weight: var(--text-h1-weight);
  color: var(--color-atrament-lesny);
  line-height: 1.2;
  margin-block-end: var(--space-md);
}

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-lg);
}

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-md);
}

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-sm);
}

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-sm);
}

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

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

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

a {
  color: var(--color-cegla);
  text-decoration: underline;
  text-underline-offset: 3px;
  text-decoration-thickness: 1px;
  transition: color var(--transition-fast);
}

a:hover,
a:focus-visible {
  color: var(--color-cegla-ciemna);
  text-decoration-thickness: 2px;
}

a:focus-visible,
button:focus-visible,
input:focus-visible,
select:focus-visible,
textarea:focus-visible,
[tabindex]:focus-visible {
  outline: var(--focus-ring-width) solid var(--focus-ring-color);
  outline-offset: var(--focus-ring-offset);
}

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

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

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

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

blockquote {
  margin-block-end: var(--space-md);
  padding: var(--space-md);
  background-color: var(--color-tlo-kremowe-ciemne);
  border-inline-start: 4px solid var(--color-musztarda);
  border-radius: var(--radius-small);
  font-family: var(--font-heading);
  font-style: italic;
  line-height: 1.6;
}

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

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

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

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

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

figcaption {
  font-size: var(--text-small-size);
  line-height: var(--text-small-line-height);
  letter-spacing: var(--text-small-letter-spacing);
  color: var(--color-atrament-lesny-jasny);
  margin-block-start: var(--space-xs);
}

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

img {
  border-radius: var(--radius-image);
}

hr {
  border: none;
  border-block-start: 1px solid var(--color-linia-mapy);
  margin-block: var(--space-lg);
}

code,
pre,
kbd,
samp {
  font-family: "SFMono-Regular", Consolas, "Liberation Mono", Menlo, monospace;
  font-size: 0.9em;
}

pre {
  background-color: var(--color-tlo-kremowe-ciemne);
  padding: var(--space-md);
  border-radius: var(--radius-small);
  overflow-x: auto;
  margin-block-end: var(--space-md);
}

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

code {
  background-color: var(--color-tlo-kremowe-ciemne);
  padding: 2px 6px;
  border-radius: var(--radius-small);
}

pre code {
  background-color: transparent;
  padding: 0;
}

table {
  width: 100%;
  border-collapse: collapse;
  margin-block-end: var(--space-md);
  font-size: var(--text-small-size);
  line-height: var(--text-small-line-height);
}

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

th,
td {
  padding: var(--space-sm) var(--space-md);
  text-align: start;
  border-block-end: 1px solid var(--color-linia-mapy);
}

th {
  font-family: var(--font-heading);
  font-weight: 600;
  color: var(--color-atrament-lesny);
  background-color: var(--color-tlo-kremowe-ciemne);
}

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

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

label {
  display: block;
  font-size: var(--text-small-size);
  font-weight: 500;
  color: var(--color-atrament-lesny);
  margin-block-end: var(--space-xs);
}

input,
select,
textarea {
  font-family: var(--font-body);
  font-size: var(--text-body-size);
  line-height: var(--text-body-line-height);
  color: var(--color-atrament-lesny);
  background-color: var(--color-papier-czysty);
  border: 1px solid var(--color-linia-mapy);
  border-radius: var(--radius-field);
  padding: var(--space-sm) var(--space-md);
  width: 100%;
  transition: border-color var(--transition-fast);
}

input:focus,
select:focus,
textarea:focus {
  border-color: var(--color-cegla);
  outline: none;
}

input::placeholder,
textarea::placeholder {
  color: var(--color-atrament-lesny-jasny);
  opacity: 0.7;
}

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

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='%231F3D2B' stroke-width='2' fill='none' stroke-linecap='round' stroke-linejoin='round'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right var(--space-md) center;
  padding-inline-end: var(--space-2xl);
}

button,
input[type="submit"],
input[type="reset"],
input[type="button"] {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-body);
  font-size: var(--text-button-size);
  font-weight: var(--text-button-weight);
  line-height: var(--text-button-line-height);
  letter-spacing: var(--text-button-letter-spacing);
  color: var(--color-tekst-na-ciemnym);
  background-color: var(--color-cegla);
  border: none;
  border-radius: var(--radius-button);
  padding: var(--space-sm) var(--space-lg);
  cursor: pointer;
  text-decoration: none;
  transition: background-color var(--transition-fast), transform var(--transition-fast);
}

button:hover,
input[type="submit"]:hover,
input[type="reset"]:hover,
input[type="button"]:hover {
  background-color: var(--color-cegla-ciemna);
}

button:active,
input[type="submit"]:active,
input[type="reset"]:active,
input[type="button"]:active {
  transform: scale(0.98);
}

button:disabled,
input[type="submit"]:disabled,
input[type="reset"]:disabled,
input[type="button"]:disabled {
  opacity: 0.5;
  cursor: not-allowed;
  transform: none;
}

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

.container--text {
  max-width: var(--text-container-max);
}

.surface-card {
  background-color: var(--surface-card-bg);
  border: var(--surface-card-border);
  border-radius: var(--surface-card-radius);
  box-shadow: var(--surface-card-shadow);
  padding: var(--space-lg);
  transition: box-shadow var(--transition-fast), border-color var(--transition-fast);
}

.surface-card:hover {
  box-shadow: var(--surface-card-shadow-hover);
  border-color: var(--color-cegla);
}

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

.surface-note {
  background-color: var(--color-tlo-kremowe-ciemne);
  border-inline-start: 4px solid var(--color-musztarda);
  border-radius: var(--radius-small);
  padding: var(--space-md);
  font-family: var(--font-heading);
  font-style: italic;
  line-height: 1.6;
}

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

.surface-dark {
  background-color: var(--color-atrament-lesny);
  color: var(--color-tekst-na-ciemnym);
}

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

.surface-dark a:hover,
.surface-dark a:focus-visible {
  color: var(--color-musztarda);
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-body);
  font-size: var(--text-button-size);
  font-weight: var(--text-button-weight);
  line-height: var(--text-button-line-height);
  letter-spacing: var(--text-button-letter-spacing);
  color: var(--color-tekst-na-ciemnym);
  background-color: var(--color-cegla);
  border: none;
  border-radius: var(--radius-button);
  padding: var(--space-sm) var(--space-lg);
  cursor: pointer;
  text-decoration: none;
  transition: background-color var(--transition-fast), transform var(--transition-fast);
}

.btn:hover,
.btn:focus-visible {
  background-color: var(--color-cegla-ciemna);
  color: var(--color-tekst-na-ciemnym);
  text-decoration: none;
}

.btn:active {
  transform: scale(0.98);
}

.btn--secondary {
  background-color: transparent;
  color: var(--color-atrament-lesny);
  border: 1px solid var(--color-atrament-lesny);
}

.btn--secondary:hover,
.btn--secondary:focus-visible {
  background-color: var(--color-atrament-lesny);
  color: var(--color-tekst-na-ciemnym);
}

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

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

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

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

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

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

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

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

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

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

.flex--justify-between {
  justify-content: space-between;
}

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

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

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

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

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

.grid {
  display: grid;
  gap: var(--space-lg);
}

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

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

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

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

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

.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: var(--space-sm);
  left: var(--space-sm);
  z-index: 1000;
  background-color: var(--color-cegla);
  color: var(--color-tekst-na-ciemnym);
  padding: var(--space-sm) var(--space-md);
  border-radius: var(--radius-button);
  text-decoration: none;
  transform: translateY(-200%);
  transition: transform var(--transition-fast);
}

.skip-link:focus-visible {
  transform: translateY(0);
}

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

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
}