/* =========================================================================
   ZSM Świecie — fundament stylów (design tokeny 1:1 z globals.css Next.js)
   Pełne style komponentów dochodzą fazami; tu: tokeny, reset, typografia,
   layout, przyciski, dostępność (WCAG + widget a11y).
   ========================================================================= */

:root {
  /* — Primary: ZSM Green — */
  --color-primary-50:  #f4f7f4;
  --color-primary-100: #dfe7e0;
  --color-primary-200: #bfd0c1;
  --color-primary-300: #94b199;
  --color-primary-400: #5f8a66;
  --color-primary-500: #2a6333;
  --color-primary-600: #23542b;
  --color-primary-700: #1d4523;
  --color-primary-800: #17361c;
  --color-primary-900: #102714;
  --color-primary: var(--color-primary-500);
  --color-primary-foreground: #ffffff;

  /* — Accent: ZSM Red (CTA, oszczędnie) — */
  --color-accent-50:  #fcf5f4;
  --color-accent-100: #f8e2e0;
  --color-accent-200: #f1c6c2;
  --color-accent-300: #e8a09a;
  --color-accent-400: #dc7168;
  --color-accent-500: #d14236;
  --color-accent-600: #b1382d;
  --color-accent-700: #922e25;
  --color-accent-800: #72241d;
  --color-accent-900: #531a15;
  --color-accent: var(--color-accent-500);
  --color-accent-foreground: #ffffff;

  /* — Neutralne / semantyczne — */
  --color-paper:       #fafaf8;
  --background:        #fafaf8;
  --foreground:        #1a1a1a;
  --card:              #ffffff;
  --card-foreground:   #1a1a1a;
  --muted:             #f3f4f6;
  --muted-foreground:  #6b7280;
  --border:            #e5e7eb;
  --ring:              #2a6333;

  /* — Typografia — */
  --font-display: "Manrope", system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  --font-sans:    "Inter", system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;

  /* — Cienie — */
  --shadow-card:       0 1px 3px rgb(0 0 0 / 0.05), 0 1px 2px rgb(0 0 0 / 0.03);
  --shadow-card-hover: 0 10px 15px -3px rgb(0 0 0 / 0.08), 0 4px 6px -2px rgb(0 0 0 / 0.03);

  /* — Promienie — */
  --radius-sm:  0.375rem;
  --radius-md:  0.5rem;
  --radius-lg:  0.75rem;
  --radius-xl:  1rem;
  --radius-2xl: 1.5rem;
  --radius-3xl: 2rem;
}

/* — Reset / baza — */
*, *::before, *::after { box-sizing: border-box; }
* { margin: 0; }
html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; }
body {
  font-family: var(--font-sans);
  background: var(--background);
  color: var(--foreground);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}
img, picture, svg, video { display: block; max-width: 100%; height: auto; }
a { color: var(--color-primary-700); text-decoration: none; }
a:hover { text-decoration: underline; }
ul, ol { padding-left: 1.25rem; }

/* — Nagłówki (Manrope, tracking-tight) — */
h1, h2, h3, h4, h5, h6 { font-family: var(--font-display); letter-spacing: -0.02em; line-height: 1.15; color: var(--color-primary-900); }
h1 { font-size: 2.25rem; font-weight: 700; }
h2 { font-size: 1.875rem; font-weight: 700; }
h3 { font-size: 1.5rem; font-weight: 600; }
h4 { font-size: 1.25rem; font-weight: 600; }
@media (min-width: 640px) {
  h1 { font-size: 3rem; } h2 { font-size: 2.25rem; } h3 { font-size: 1.875rem; }
}
@media (min-width: 1024px) { h1 { font-size: 3.75rem; } }

/* — Layout — */
.zsm-container { width: 100%; max-width: 80rem; margin-inline: auto; padding-inline: 1rem; }
@media (min-width: 640px) { .zsm-container { padding-inline: 1.5rem; } }
@media (min-width: 1024px) { .zsm-container { padding-inline: 2rem; } }
main { flex: 1 0 auto; }

/* — Przyciski — */
.zsm-btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 0.5rem;
  font-family: var(--font-display); font-weight: 600; font-size: 0.95rem;
  padding: 0.7rem 1.25rem; border-radius: var(--radius-lg); border: 1px solid transparent;
  cursor: pointer; transition: background-color .15s, transform .15s, box-shadow .15s;
}
.zsm-btn--primary { background: var(--color-primary-700); color: var(--color-primary-foreground); }
.zsm-btn--primary:hover { background: var(--color-primary-800); text-decoration: none; }
.zsm-btn--accent { background: var(--color-accent); color: var(--color-accent-foreground); }
.zsm-btn--accent:hover { background: var(--color-accent-600); text-decoration: none; }
.zsm-btn--ghost { background: transparent; color: var(--color-primary-800); border-color: var(--border); }
.zsm-btn--ghost:hover { background: var(--color-primary-50); text-decoration: none; }

/* — Dostępność: skip-link — */
.skip-link {
  position: absolute; top: -9999px; left: 0; z-index: 10000;
  background: var(--color-primary-700); color: #fff; padding: 0.75rem 1rem; border-radius: 0 0 var(--radius-md) 0;
}
.skip-link:focus { top: 0; }

/* — Dostępność: focus widoczny (WCAG 2.4.7) — */
:focus-visible { outline: 2px solid var(--ring); outline-offset: 2px; }

/* — Widget dostępności: klasy modyfikujące body (1:1) — */
body.high-contrast { background: #000; color: #fff; }
body.high-contrast a { color: #ff0; }
body.high-contrast .zsm-card, body.high-contrast .card { background: #000; border-color: #fff; }
body.high-contrast img { filter: grayscale(1) contrast(1.1); }

body.dyslexic-font, body.dyslexic-font * { font-family: "OpenDyslexic", var(--font-sans) !important; letter-spacing: 0.02em; line-height: 1.6; }

body.highlight-links a { outline: 2px solid var(--color-accent); background: #fbedec; padding: 0 4px; border-radius: 3px; }

body.reduce-motion * { animation-duration: 0.01ms !important; animation-iteration-count: 1 !important; transition-duration: 0.01ms !important; scroll-behavior: auto !important; }

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

/* — Animacja serduszka (mapa kontakt) — */
@keyframes zsm-heart-pulse { 0%, 100% { transform: scale(1); } 50% { transform: scale(1.08); } }
.zsm-heart-anim { animation: zsm-heart-pulse 2s ease-in-out infinite; transform-origin: center 80%; }

/* — Animacje wejścia (IntersectionObserver dodaje .is-visible) — */
.zsm-fade-in { opacity: 0; transform: translateY(1rem); transition: opacity .6s ease, transform .6s ease; }
.zsm-fade-in.is-visible { opacity: 1; transform: none; }

/* =========================================================================
   Nagłówek + stopka — minimalny szkielet (pełny układ 1:1 w Fazie 3)
   ========================================================================= */
.zsm-header {
  position: sticky; top: 0; z-index: 50;
  background: rgb(250 250 248 / 0.85); backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--border);
}
.zsm-header__inner { display: flex; align-items: center; justify-content: space-between; gap: 1rem; min-height: 4rem; }
.zsm-header__brand { display: inline-flex; align-items: center; gap: 0.6rem; font-family: var(--font-display); font-weight: 800; color: var(--color-primary-800); }
.zsm-header__brand:hover { text-decoration: none; }
.zsm-nav ul { display: flex; gap: 1.25rem; list-style: none; padding: 0; margin: 0; flex-wrap: wrap; }
.zsm-nav a { font-family: var(--font-display); font-weight: 600; font-size: 0.95rem; color: var(--color-primary-900); }

.zsm-footer { background: var(--color-primary-900); color: #cfe0d2; margin-top: 4rem; }
.zsm-footer a { color: #e7efe8; }
.zsm-footer__inner { padding-block: 3rem 1.5rem; display: grid; gap: 2rem; }
@media (min-width: 768px) { .zsm-footer__inner { grid-template-columns: 1.5fr 1fr 1fr 1fr; } }
.zsm-footer__bottom { border-top: 1px solid rgb(255 255 255 / 0.12); padding-block: 1.25rem; font-size: 0.85rem; }

/* — Widget dostępności: stany aktywne (JS ustawia data-active / aria-checked) — */
.zsm-a11y-opt[data-active="true"] { border-color: var(--color-primary); background: var(--color-primary); color: #fff; }
.zsm-a11y-switch[aria-checked="true"] { border-color: var(--color-primary); background: var(--color-primary-50); color: var(--color-primary-900); }
.zsm-a11y-switch[aria-checked="true"] .zsm-switch-track { border-color: var(--color-primary-700); background: var(--color-primary); }
.zsm-a11y-switch[aria-checked="true"] .zsm-switch-knob { transform: translateX(1rem); }