/* ================================================
   PROJEKT AUTONOMIA — minimalistyczny system stylów
   Autor: GPT-5 (dla Yoshi)
   ================================================ */

/* ------------------------------
   Zmienne główne (paleta kolorów)
   ------------------------------ */
:root {
  --color-primary: #1E3B33;        /* ciemna zieleń – fundament i zaufanie */
  --color-secondary: #8E9C7A;      /* oliwkowy akcent – edukacja i natura */
  --color-accent: #C9B78A;         /* piaskowy – energia i równowaga */
  --color-bg: #F5F2E9;             /* kremowe tło – neutralna przestrzeń */
  --color-bg-subtle: #E8E1CF;      /* delikatne tło sekcji – kontrast */
  --color-text: #2A2A28;           /* główny tekst – czytelność */
  --color-hover-primary: #2F5248;  /* jaśniejsza zieleń przy hoverze */

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

  --radius: 12px;
  --transition: 0.25s ease-in-out;
}

/* ------------------------------
   Reset i podstawy
   ------------------------------ */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-body);
  color: var(--color-text);
  background-color: var(--color-bg);
  line-height: 1.6;
  font-size: 17px;
}

/* ------------------------------
   Nagłówki
   ------------------------------ */
h1, h2, h3, h4 {
  font-family: var(--font-heading);
  color: var(--color-primary);
  font-weight: 700;
  line-height: 1.2;
  margin-bottom: 0.6em;
}

h1 { font-size: 2.8rem; }
h2 { font-size: 2rem; }
h3 { font-size: 1.5rem; }

/* ------------------------------
   Linki
   ------------------------------ */
a {
  color: var(--color-primary);
  text-decoration: none;
  transition: var(--transition);
}

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

/* ------------------------------
   Przyciski
   ------------------------------ */
.btn-primary {
  background: var(--color-primary);
  color: var(--color-bg);
  border: none;
  border-radius: 8px;
  padding: 12px 28px;
  font-weight: 600;
  letter-spacing: 0.5px;
  cursor: pointer;
  transition: var(--transition);
}

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

.btn-secondary {
  background: transparent;
  border: 2px solid var(--color-secondary);
  color: var(--color-secondary);
  border-radius: 8px;
  padding: 10px 26px;
  font-weight: 600;
  cursor: pointer;
  transition: var(--transition);
}

.btn-secondary:hover {
  background: var(--color-secondary);
  color: var(--color-primary);
}

/* ------------------------------
   Karty / Bloki
   ------------------------------ */
.card {
  background: var(--color-bg-subtle);
  border-radius: var(--radius);
  box-shadow: 0 4px 12px rgba(30, 59, 51, 0.1);
  padding: 24px;
  transition: var(--transition);
}

.card:hover {
  transform: translateY(-4px);
  box-shadow: 0 8px 16px rgba(30, 59, 51, 0.15);
}

/* ------------------------------
   Nawigacja (Header)
   ------------------------------ */
header {
  background: var(--color-primary);
  color: var(--color-bg);
  padding: 20px 5%;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

header h1 {
  margin: 0;
  flex-shrink: 0;
  color: #FFFFFF;
}

header nav {
  display: flex;
  gap: 20px;
  align-items: center;
  flex-wrap: wrap;
}

header a {
  color: var(--color-bg);
  font-weight: 500;
  white-space: nowrap;
}

header a:hover {
  color: var(--color-secondary);
}

/* ------------------------------
   Sekcje
   ------------------------------ */
section {
  padding: 40px 20px;
}

section.alt {
  background-color: var(--color-bg-subtle);
}

/* ------------------------------
   Stopka
   ------------------------------ */
footer {
  background: var(--color-primary);
  color: var(--color-bg);
  text-align: center;
  padding: 40px 20px;
  font-size: 0.95rem;
}

/* ------------------------------
   Animacje
   ------------------------------ */
.fade-in {
  opacity: 0;
  transform: translateY(20px);
  animation: fadeInUp 0.8s ease-out forwards;
}

@keyframes fadeInUp {
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* ------------------------------
   Układ responsywny
   ------------------------------ */
@media (max-width: 768px) {
  header {
    flex-direction: column;
    gap: 12px;
    text-align: center;
  }

  h1 { font-size: 2.2rem; }
  section { padding: 60px 16px; }
}