/* PROFESSIONAL THEME */
@import url('https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600&family=Manrope:wght@700;800&display=swap');

:root {
  /* Kolory */
  --bg-body: #f5f7fa;
  --bg-surface: #ffffff;
  --text-main: #111822;
  --text-muted: #5c6776;
  --accent: #0063d3;
  --accent-hover: #0048a0;
  --border-light: #e2e8f0;
  --shadow: 0 2px 6px rgba(0,0,0,.06);

  /* Czcionki */
  --font-header: 'Manrope', sans-serif;
  --font-body: 'Inter', sans-serif;

  /* Radiusy i odstępy */
  --radius: 6px;
  --section-padding: clamp(2rem, 5vw, 4rem);
}

/* Global reset */
*,
*::before,
*::after { box-sizing: border-box; margin: 0; padding: 0; }

html { scroll-behavior: smooth; }

body {
  font-family: var(--font-body);
  font-size: 1rem;
  line-height: 1.6;
  color: var(--text-main);
  background: var(--bg-body);
  -webkit-font-smoothing: antialiased;
}

/* Typografia */
h1, h2, h3, h4, h5, h6 { font-family: var(--font-header); font-weight: 700; letter-spacing: -.01em; }
h1 { font-size: clamp(1.9rem, 4vw, 2.75rem); }
h2 { font-size: clamp(1.5rem, 3.5vw, 2rem); }
h3 { font-size: clamp(1.2rem, 3vw, 1.5rem); }

p { margin-bottom: 1em; }
a { color: var(--accent); text-decoration: none; }
a:hover { color: var(--accent-hover); }

/* Container */
.container {
  width: min(90%, 1200px);
  margin-inline: auto;
}

/* Nagłówek */
.site-header {
  background: var(--bg-surface);
  box-shadow: var(--shadow);
  position: sticky;
  top: 0;
  z-index: 100;
}
.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1rem 0;
}
.logo {
  font-family: var(--font-header);
  font-size: 1.25rem;
  font-weight: 800;
  color: var(--text-main);
}

/* Nawigacja – desktop */
.main-nav ul {
  list-style: none;
  display: flex;
  gap: 2rem;
}
.main-nav a {
  font-weight: 500;
  color: var(--text-muted);
  transition: color .2s;
}
.main-nav a:hover { color: var(--accent); }

/* Nawigacja – mobile (checkbox hack) */
#menu-toggle { display: none; }
.hamburger {
  display: none;
  cursor: pointer;
  flex-direction: column;
  gap: 5px;
}
.hamburger span {
  width: 24px;
  height: 2px;
  background: var(--text-main);
  transition: .3s;
}
@media (max-width: 768px) {
  .hamburger { display: flex; }
  .main-nav {
    position: absolute;
    top: 100%;
    left: 0;
    width: 100%;
    background: var(--bg-surface);
    box-shadow: var(--shadow);
    transform: translateX(-100%);
    transition: transform .3s;
  }
  .main-nav ul {
    flex-direction: column;
    padding: 1.5rem 2rem;
  }
  #menu-toggle:checked ~ .main-nav { transform: translateX(0); }
  #menu-toggle:checked ~ .hamburger span:nth-child(1) { transform: rotate(45deg) translate(5px, 5px); }
  #menu-toggle:checked ~ .hamburger span:nth-child(2) { opacity: 0; }
  #menu-toggle:checked ~ .hamburger span:nth-child(3) { transform: rotate(-45deg) translate(5px, -5px); }
}

/* Sekcje */
section { padding-block: var(--section-padding); }
.bg-surface { background: var(--bg-surface); }

/* Gridy – 3 kolumny na desktop, 1 na mobile */
.offers-grid,
.partners-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.5rem;
}
@media (max-width: 900px) {
  .offers-grid,
  .partners-grid { grid-template-columns: 1fr; }
}

/* Karty ofert */
.job-card {
  background: var(--bg-surface);
  border: 1px solid var(--border-light);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 1.5rem;
  display: flex;
  flex-direction: column;
  gap: .75rem;
  transition: box-shadow .2s;
}
.job-card:hover { box-shadow: 0 4px 12px rgba(0,0,0,.08); }
.job-card h3 { font-size: 1.1rem; }
.job-card .meta {
  font-size: .875rem;
  color: var(--text-muted);
}

/* Przyciski */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: .6rem 1.25rem;
  font-family: var(--font-body);
  font-weight: 500;
  font-size: .95rem;
  border-radius: var(--radius);
  background: var(--accent);
  color: #fff;
  transition: background .2s;
}
.btn:hover { background: var(--accent-hover); }

/* Partnerzy */
.partner-link {
  display: block;
  padding: 1.25rem;
  background: var(--bg-surface);
  border: 1px solid var(--border-light);
  border-radius: var(--radius);
  text-align: center;
  color: var(--text-muted);
  transition: border-color .2s;
}
.partner-link:hover { border-color: var(--accent); }

/* FAQ akordeon */
details {
  background: var(--bg-surface);
  border: 1px solid var(--border-light);
  border-radius: var(--radius);
  padding: 1rem 1.25rem;
  margin-bottom: .75rem;
}
summary {
  font-weight: 600;
  cursor: pointer;
  list-style: none;
  display: flex;
  justify-content: space-between;
  align-items: center;
}
summary::after {
  content: "+";
  font-size: 1.2rem;
  color: var(--accent);
  transition: transform .2s;
}
details[open] summary::after { transform: rotate(45deg); }
details > *:not(summary) {
  margin-top: .75rem;
  padding-right: 1rem;
}

/* Partnerzy – pokaż więcej (checkbox hack) */
.partners-wrapper .partners-hidden { display: none; }
.partners-wrapper .show-more-checkbox { display: none; }
.partners-wrapper .show-more-checkbox:checked ~ .partners-hidden { display: grid; }
.partners-wrapper .show-more-checkbox:checked ~ .show-more-container { display: none; }

/* Stopka */
.site-footer {
  background: var(--text-main);
  color: rgba(255,255,255,.75);
  padding-block: 2.5rem 1.5rem;
}
.footer-content {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 2rem;
}
.footer-section h4 {
  font-family: var(--font-header);
  font-size: 1rem;
  margin-bottom: .75rem;
  color: #fff;
}
.footer-section a { color: rgba(255,255,255,.75); }
.footer-section a:hover { color: #fff; }

/* Subtelna dekoracja diagonal lines */
.decor-pattern {
  background-image: repeating-linear-gradient(45deg, transparent, transparent 23px, var(--border-light) 23px, var(--border-light) 24px);
  opacity: .4;
}