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

:root {
  --bg-body: #f5f7fa;
  --bg-surface: #ffffff;
  --text-main: #111827;
  --text-muted: #6b7280;
  --accent: #0052d4;
  --accent-hover: #003da8;
  --border-radius: 4px;
  --shadow: 0 2px 6px rgba(0,0,0,.05);
  --max-width: 1200px;
  --gap: 24px;
  --font-header: 'Orbitron', sans-serif;
  --font-body: 'Inter', sans-serif;
}

*,
*::before,
*::after { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  font-family: var(--font-body);
  background: var(--bg-body);
  color: var(--text-main);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-header);
  font-weight: 500;
  margin: 0 0 .5em;
  line-height: 1.2;
}

h1 { font-size: clamp(1.75rem, 4vw, 2.5rem); }
h2 { font-size: clamp(1.5rem, 3vw, 2rem); }
h3 { font-size: clamp(1.25rem, 2.5vw, 1.5rem); }

p { margin: 0 0 1em; }

a { color: var(--accent); text-decoration: none; }
a:hover { color: var(--accent-hover); }

.container {
  width: min(90%, var(--max-width));
  margin-inline: auto;
  padding-block: var(--gap);
}

.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;
  color: var(--accent);
  letter-spacing: .5px;
}

/* --- Nawigacja Desktop --- */
.main-nav ul {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  gap: 2rem;
}

.main-nav a {
  font-weight: 500;
  color: var(--text-main);
  padding: .5rem 0;
  border-bottom: 2px solid transparent;
  transition: color .2s, border-color .2s;
}

.main-nav a:hover,
.main-nav a:focus {
  color: var(--accent);
  border-color: var(--accent);
}

/* --- Hamburger (Mobile) --- */
#menu-toggle { display: none; }

.hamburger {
  display: none;
  flex-direction: column;
  gap: 6px;
  cursor: pointer;
  padding: 4px;
}

.hamburger span {
  width: 24px;
  height: 2px;
  background: var(--text-main);
  transition: background .2s;
}

.hamburger:hover span { background: var(--accent); }

/* --- Hero --- */
.hero {
  background: var(--bg-surface);
  padding: clamp(3rem, 8vw, 5rem) 0;
  text-align: center;
}

.hero h1 { margin-bottom: 1rem; }
.hero p {
  font-size: clamp(1rem, 2vw, 1.125rem);
  color: var(--text-muted);
  max-width: 680px;
  margin-inline: auto;
}

/* --- Przyciski --- */
.btn {
  display: inline-block;
  background: var(--accent);
  color: #fff;
  padding: .75rem 1.5rem;
  border-radius: var(--border-radius);
  font-weight: 600;
  transition: background .2s;
}

.btn:hover { background: var(--accent-hover); color: #fff; }

/* --- Gridy --- */
.offers-grid,
.partners-grid {
  display: grid;
  gap: var(--gap);
  grid-template-columns: repeat(3, 1fr);
}

.job-card,
.partner-link {
  background: var(--bg-surface);
  border-radius: var(--border-radius);
  box-shadow: var(--shadow);
  padding: 1.5rem;
  transition: box-shadow .2s;
}

.job-card:hover,
.partner-link:hover { box-shadow: 0 4px 12px rgba(0,0,0,.08); }

.job-card h3 { margin-bottom: .75rem; }
.job-card .meta {
  font-size: .875rem;
  color: var(--text-muted);
  margin-bottom: 1rem;
}

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

.show-more-checkbox { display: none; }
.show-more-container { text-align: center; margin-top: 1.5rem; }

/* --- FAQ (Akordeon) --- */
details {
  background: var(--bg-surface);
  border-radius: var(--border-radius);
  box-shadow: var(--shadow);
  margin-bottom: 1rem;
  padding: 1rem 1.5rem;
}

summary {
  cursor: pointer;
  font-weight: 600;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

summary::after {
  content: '+';
  font-size: 1.25rem;
  color: var(--accent);
  transition: transform .2s;
}

details[open] summary::after { transform: rotate(45deg); }

details > *:not(summary) {
  margin-top: 1rem;
  padding-right: 1rem;
}

/* --- Stopka --- */
.site-footer {
  background: var(--text-main);
  color: #fff;
  padding: 2.5rem 0 2rem;
  margin-top: 4rem;
}

.footer-content {
  display: grid;
  gap: 2rem;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
}

.footer-section h4 {
  font-family: var(--font-header);
  margin-bottom: .75rem;
  color: var(--accent);
}

.footer-section a { color: #e5e7eb; }
.footer-section a:hover { color: #fff; }

.footer-bottom {
  margin-top: 2rem;
  padding-top: 1rem;
  border-top: 1px solid #374151;
  font-size: .875rem;
  color: #9ca3af;
  text-align: center;
}

/* --- Responsywność --- */
@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);
    max-height: 0;
    overflow: hidden;
    transition: max-height .3s ease;
  }

  #menu-toggle:checked ~ .main-nav { max-height: 400px; }

  .main-nav ul {
    flex-direction: column;
    gap: 0;
    padding: 1rem 0;
  }

  .main-nav a {
    display: block;
    padding: .75rem 5%;
    border-bottom: none;
  }

  .offers-grid,
  .partners-grid { grid-template-columns: 1fr; }
}