:root {
  --color-krem: #F7F2E9;
  --color-drewno: #A67B5B;
  --color-oliwka: #6B7F5E;
  --color-burgund: #7A2E3B;
  --color-grafit: #2E2E2E;
  --color-przygaszona-czerwien: #B24C4C;
  --color-jasny-grafit: #5A5A5A;
  --color-bialy: #FFFFFF;

  --color-text: var(--color-grafit);
  --color-text-secondary: var(--color-jasny-grafit);
  --color-text-on-dark: var(--color-krem);
  --color-text-on-accent: var(--color-bialy);
  --color-heading: var(--color-burgund);
  --color-link: var(--color-oliwka);
  --color-link-hover: var(--color-przygaszona-czerwien);
  --color-border: rgba(46, 46, 46, 0.1);
  --color-border-strong: rgba(46, 46, 46, 0.2);
  --color-focus: var(--color-oliwka);
  --color-error: var(--color-przygaszona-czerwien);
  --color-background: var(--color-krem);
  --color-surface: var(--color-bialy);
  --color-surface-alt: rgba(166, 123, 91, 0.1);
  --color-overlay: rgba(46, 46, 46, 0.6);

  --font-heading: 'Playfair Display', serif;
  --font-body: 'Inter', sans-serif;

  --text-h1-size: clamp(2.5rem, 5vw + 1rem, 3.5rem);
  --text-h1-line-height: 1.1;
  --text-h1-letter-spacing: -0.02em;
  --text-h2-size: clamp(2rem, 3.5vw + 0.75rem, 2.5rem);
  --text-h2-line-height: 1.2;
  --text-h2-letter-spacing: -0.01em;
  --text-h3-size: 1.75rem;
  --text-h3-line-height: 1.3;
  --text-h3-letter-spacing: 0;
  --text-h4-size: 1.25rem;
  --text-h4-line-height: 1.4;
  --text-h4-letter-spacing: 0;
  --text-body-size: 1rem;
  --text-body-line-height: 1.6;
  --text-body-letter-spacing: 0;
  --text-small-size: 0.875rem;
  --text-small-line-height: 1.5;
  --text-small-letter-spacing: 0.01em;
  --text-caption-size: 0.75rem;
  --text-caption-line-height: 1.4;
  --text-caption-letter-spacing: 0.02em;

  --space-1: 4px;
  --space-2: 8px;
  --space-3: 12px;
  --space-4: 16px;
  --space-5: 24px;
  --space-6: 32px;
  --space-7: 48px;
  --space-8: 64px;
  --space-9: 96px;
  --space-10: 128px;

  --container-max-width: 1320px;
  --container-gutter-desktop: 48px;
  --container-gutter-tablet: 28px;
  --container-gutter-mobile: 18px;

  --section-spacing-desktop: var(--space-9);
  --section-spacing-tablet: var(--space-8);
  --section-spacing-mobile: var(--space-7);

  --paragraph-max-width: 720px;

  --radius-small: 4px;
  --radius-medium: 8px;
  --radius-large: 12px;

  --shadow-card: 0 2px 8px rgba(0, 0, 0, 0.04);
  --shadow-modal: 0 4px 16px rgba(0, 0, 0, 0.06);

  --transition-fast: 0.2s ease;
  --focus-outline-width: 2px;
  --focus-outline-offset: 2px;
}

*,
*::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);
  line-height: var(--text-body-line-height);
  letter-spacing: var(--text-body-letter-spacing);
  color: var(--color-text);
  background-color: var(--color-background);
  min-height: 100vh;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  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-link);
  text-decoration: none;
  transition: color var(--transition-fast);
}

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

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

h1,
h2,
h3,
h4,
h5,
h6 {
  font-family: var(--font-heading);
  color: var(--color-heading);
  font-weight: 600;
  margin-block-end: var(--space-5);
}

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

h2 {
  font-size: var(--text-h2-size);
  line-height: var(--text-h2-line-height);
  letter-spacing: var(--text-h2-letter-spacing);
}

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

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

h5,
h6 {
  font-size: var(--text-body-size);
  line-height: var(--text-body-line-height);
  letter-spacing: var(--text-body-letter-spacing);
}

p {
  font-size: var(--text-body-size);
  line-height: var(--text-body-line-height);
  letter-spacing: var(--text-body-letter-spacing);
  margin-block-end: var(--space-5);
}

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

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

blockquote {
  margin-block-end: var(--space-5);
  padding-inline-start: var(--space-5);
  border-inline-start: 3px solid var(--color-drewno);
  color: var(--color-text-secondary);
}

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

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

hr {
  border: none;
  border-block-start: 1px solid var(--color-border);
  margin-block: var(--space-7);
}

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

strong,
b {
  font-weight: 600;
}

em,
i {
  font-style: italic;
}

code,
pre {
  font-family: 'Courier New', monospace;
  font-size: 0.9em;
}

pre {
  background-color: var(--color-surface-alt);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-small);
  padding: var(--space-4);
  overflow-x: auto;
  margin-block-end: var(--space-5);
}

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

.section {
  padding-block: var(--section-spacing-desktop);
}

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

.section--roomy {
  padding-block: var(--space-10);
}

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

.surface--flat {
  box-shadow: none;
}

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

.surface--dark {
  background-color: var(--color-grafit);
  color: var(--color-text-on-dark);
  border-color: rgba(255, 255, 255, 0.1);
}

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

.card {
  background-color: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-medium);
  box-shadow: var(--shadow-card);
  padding: var(--space-5);
}

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

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  padding: var(--space-3) var(--space-5);
  border-radius: var(--radius-small);
  font-size: var(--text-body-size);
  font-weight: 500;
  line-height: 1.4;
  letter-spacing: 0;
  text-align: center;
  transition: background-color var(--transition-fast), color var(--transition-fast);
  min-height: 44px;
}

.btn--primary {
  background-color: var(--color-oliwka);
  color: var(--color-text-on-accent);
}

.btn--primary:hover {
  background-color: color-mix(in srgb, var(--color-oliwka) 90%, black);
  color: var(--color-text-on-accent);
}

.btn--secondary {
  background-color: var(--color-burgund);
  color: var(--color-text-on-accent);
}

.btn--secondary:hover {
  background-color: color-mix(in srgb, var(--color-burgund) 90%, black);
  color: var(--color-text-on-accent);
}

.btn--ghost {
  background-color: transparent;
  color: var(--color-text);
  border: 1px solid var(--color-border-strong);
}

.btn--ghost:hover {
  background-color: var(--color-surface-alt);
  color: var(--color-text);
}

.btn--light {
  background-color: var(--color-krem);
  color: var(--color-grafit);
}

.btn--light:hover {
  background-color: color-mix(in srgb, var(--color-krem) 90%, black);
  color: var(--color-grafit);
}

.btn--small {
  padding: var(--space-2) var(--space-4);
  font-size: var(--text-small-size);
  min-height: 36px;
}

.btn--large {
  padding: var(--space-4) var(--space-6);
  font-size: var(--text-h4-size);
  min-height: 52px;
}

.btn--full {
  width: 100%;
}

.form-field {
  margin-block-end: var(--space-5);
}

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

label {
  display: block;
  font-size: var(--text-small-size);
  font-weight: 500;
  color: var(--color-text);
  margin-block-end: var(--space-2);
}

input[type="text"],
input[type="email"],
input[type="tel"],
input[type="number"],
input[type="date"],
input[type="time"],
input[type="password"],
input[type="search"],
input[type="url"],
textarea,
select {
  display: block;
  width: 100%;
  padding: var(--space-3) var(--space-4);
  background-color: var(--color-surface);
  border: 1px solid var(--color-border-strong);
  border-radius: var(--radius-small);
  font-size: var(--text-body-size);
  line-height: var(--text-body-line-height);
  color: var(--color-text);
  transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
  min-height: 44px;
}

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

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='%235A5A5A' stroke-width='1.5' fill='none' stroke-linecap='round' stroke-linejoin='round'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right var(--space-4) center;
  padding-inline-end: var(--space-7);
}

input::placeholder,
textarea::placeholder {
  color: var(--color-text-secondary);
  opacity: 1;
}

.form-error {
  color: var(--color-error);
  font-size: var(--text-small-size);
  margin-block-start: var(--space-2);
}

.form-hint {
  color: var(--color-text-secondary);
  font-size: var(--text-small-size);
  margin-block-start: var(--space-2);
}

.link-underline {
  text-decoration: underline;
  text-underline-offset: 3px;
}

.link-underline:hover {
  text-decoration-color: var(--color-link-hover);
}

.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-4);
  z-index: 1000;
  padding: var(--space-3) var(--space-5);
  background-color: var(--color-grafit);
  color: var(--color-text-on-dark);
  border-radius: var(--radius-small);
  transition: top var(--transition-fast);
}

.skip-link:focus {
  top: var(--space-4);
  outline: var(--focus-outline-width) solid var(--color-focus);
  outline-offset: var(--focus-outline-offset);
}

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

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

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

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

.flex--grow > * {
  flex-grow: 1;
}

.flex--shrink > * {
  flex-shrink: 1;
}

.flex--no-gap {
  gap: 0;
}

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

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

.grid-auto {
  display: grid;
  gap: var(--space-5);
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
}

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

.grid-auto--small {
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
}

.grid-auto--large {
  grid-template-columns: repeat(auto-fit, minmax(340px, 1fr));
}

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

.text-caption {
  font-size: var(--text-caption-size);
  line-height: var(--text-caption-line-height);
  letter-spacing: var(--text-caption-letter-spacing);
}

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

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

.text-heading {
  font-family: var(--font-heading);
  color: var(--color-heading);
}

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

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

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

.mt-0 { margin-block-start: 0; }
.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); }
.mt-9 { margin-block-start: var(--space-9); }
.mt-10 { margin-block-start: var(--space-10); }

.mb-0 { margin-block-end: 0; }
.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); }
.mb-9 { margin-block-end: var(--space-9); }
.mb-10 { margin-block-end: var(--space-10); }

.p-0 { padding: 0; }
.p-1 { padding: var(--space-1); }
.p-2 { padding: var(--space-2); }
.p-3 { padding: var(--space-3); }
.p-4 { padding: var(--space-4); }
.p-5 { padding: var(--space-5); }
.p-6 { padding: var(--space-6); }
.p-7 { padding: var(--space-7); }
.p-8 { padding: var(--space-8); }
.p-9 { padding: var(--space-9); }
.p-10 { padding: var(--space-10); }

@media (max-width: 1024px) {
  .container {
    padding-inline: var(--container-gutter-tablet);
  }

  .section {
    padding-block: var(--section-spacing-tablet);
  }

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

@media (max-width: 768px) {
  .container {
    padding-inline: var(--container-gutter-mobile);
  }

  .section {
    padding-block: var(--section-spacing-mobile);
  }

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

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

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

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

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

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

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

  .grid-auto {
    grid-template-columns: 1fr;
  }

  .grid-auto--small,
  .grid-auto--large {
    grid-template-columns: 1fr;
  }

  .btn--full-mobile {
    width: 100%;
  }
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }

  *,
  *::before,
  *::after {
    transition-duration: 0.01ms !important;
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
  }
}