/* ==========================================================================
   layout.css — typografia bazowa, kontenery, siatka, sekcje
   ========================================================================== */

body {
  font-family: var(--font-sans);
  font-size: var(--fs-body);
  font-weight: var(--fw-regular);
  line-height: var(--lh-body);
  color: var(--color-text);
  background: var(--color-bg);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-wrap: break-word;
}

/* kotwice nie chowają się pod przyklejonym headerem */
[id] { scroll-margin-top: calc(var(--header-h) + 1rem); }

body.has-fixed-header { padding-top: var(--header-h); }
body.is-locked { overflow: hidden; }

h1, h2, h3, h4 {
  color: var(--color-brand);
  font-weight: var(--fw-regular);
  line-height: var(--lh-heading);
  letter-spacing: var(--ls-title);
  /* nagłówki łamiemy wyłącznie między wyrazami — nigdy w środku słowa */
  overflow-wrap: normal;
  word-break: normal;
  hyphens: none;
}

p { max-width: 68ch; }

strong { font-weight: var(--fw-medium); }

/* --- kontenery ------------------------------------------------------------ */

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

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

/* --- sekcje --------------------------------------------------------------- */

.section { padding-block: var(--section-y); }
.section--tight { padding-block: clamp(2.5rem, 4.5vw, 4.5rem); }
.section--alt { background: var(--color-bg-alt); }
.section--dark {
  background: var(--color-navy);
  color: var(--color-muted-dark);
}
.section--dark h1,
.section--dark h2,
.section--dark h3 { color: #fff; }

.section-head {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: var(--space-md);
  flex-wrap: wrap;
  margin-bottom: clamp(1.75rem, 3vw, 3rem);
}

.section-head__title {
  font-size: var(--fs-label);
  font-weight: var(--fw-medium);
  letter-spacing: var(--ls-label);
  text-transform: uppercase;
  color: var(--color-brand);
}
.section--dark .section-head__title { color: #fff; }

/* --- siatki --------------------------------------------------------------- */

.grid { display: grid; gap: var(--grid-gap); }
.grid--4 { grid-template-columns: repeat(4, minmax(0, 1fr)); }
.grid--3 { grid-template-columns: repeat(3, minmax(0, 1fr)); }
.grid--2 { grid-template-columns: repeat(2, minmax(0, 1fr)); }

.split {
  display: grid;
  grid-template-columns: minmax(0, 5fr) minmax(0, 7fr);
  gap: clamp(2rem, 5vw, 5rem);
  align-items: start;
}
.split--even { grid-template-columns: repeat(2, minmax(0, 1fr)); }

/* --- pomocnicze ------------------------------------------------------------ */

.eyebrow {
  display: block;
  font-size: var(--fs-label);
  font-weight: var(--fw-medium);
  letter-spacing: var(--ls-label);
  text-transform: uppercase;
  color: var(--color-muted);
  margin-bottom: var(--space-md);
}
.section--dark .eyebrow { color: var(--color-muted-dark); }

.lead {
  font-size: var(--fs-lead);
  line-height: 1.6;
  color: var(--color-text);
}
.section--dark .lead { color: var(--color-muted-dark); }

/* --- klasy narzędziowe (zamiast inline style) ------------------------------ */

.u-mt-sm { margin-top: var(--space-sm); }
.u-mt-md { margin-top: var(--space-md); }
.u-mt-lg { margin-top: var(--space-lg); }
.u-mt-xl { margin-top: var(--space-xl); }
.u-mb-md { margin-bottom: var(--space-md); }
.u-mb-lg { margin-bottom: var(--space-lg); }

.u-title-h1 { font-size: var(--fs-h1); }
.u-title-h2 { font-size: var(--fs-h2); }
.u-align-center { align-items: center; }
.u-maxw-none { max-width: none; }

.visually-hidden {
  position: absolute !important;
  width: 1px; height: 1px;
  padding: 0; margin: -1px;
  overflow: hidden;
  clip: rect(0 0 0 0);
  clip-path: inset(50%);
  white-space: nowrap;
  border: 0;
}

.skip-link {
  position: absolute;
  top: 0; left: 0;
  z-index: 1000;
  padding: 0.75rem 1.25rem;
  background: var(--color-navy);
  color: #fff;
  font-size: var(--fs-xs);
  letter-spacing: var(--ls-nav);
  text-transform: uppercase;
  transform: translateY(-120%);
  transition: transform var(--dur-fast) var(--ease);
}
.skip-link:focus-visible { transform: translateY(0); }

/* --- strona: nagłówek podstrony ------------------------------------------- */

.page-head { padding-block: clamp(2.5rem, 5vw, 5rem) clamp(1.5rem, 3vw, 3rem); }

.page-head__title {
  font-size: var(--fs-display);
  line-height: var(--lh-tight);
  letter-spacing: var(--ls-hero);
  text-transform: uppercase;
  font-weight: var(--fw-regular);
}

.page-head__lead {
  margin-top: var(--space-md);
  max-width: 56ch;
  font-size: var(--fs-lead);
  color: var(--color-muted);
}