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

:root {
  /* Kolory */
  --bg-body: #f5f7fa;
  --bg-surface: #ffffff;
  --text-main: #111827;
  --text-muted: #6b7280;
  --accent: #2563eb;
  --accent-hover: #1d4ed8;

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

  /* Wymiary */
  --max-width: 1200px;
  --radius: 10px;
  --shadow: 0 4px 12px rgba(0,0,0,.06);
}

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

html { scroll-behavior: smooth; }

body {
  font-family: var(--font-body);
  font-size: clamp(1rem, 0.95rem + 0.25vw, 1.125rem);
  line-height: 1.6;
  color: var(--text-main);
  background: var(--bg-body);
  -webkit-font-smoothing: antialiased;
}

/* Layout helpers */
.container {
  width: 90%;
  max-width: var(--max-width);
  margin-inline: auto;
}

/* Typografia */
h1, h2, h3, h4 {
  font-family: var(--font-header);
  font-weight: 700;
  line-height: 1.2;
  color: var(--text-main);
}

h1 { font-size: clamp(2.5rem, 2rem + 2.5vw, 4rem); }
h2 { font-size: clamp(1.75rem, 1.5rem + 1.25vw, 2.5rem); }
h3 { font-size: clamp(1.25rem, 1.1rem + 0.75vw, 1.75rem); }

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

/* Przyciski */
.btn {
  display: inline-block;
  padding: 0.75rem 1.75rem;
  font-family: var(--font-body);
  font-weight: 600;
  font-size: 1rem;
  background: var(--accent);
  color: #fff;
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  transition: background .2s;
}
.btn:hover { background: var(--accent-hover); color: #fff; }

/* Nagłówek */
.site-header {
  background: var(--bg-surface);
  box-shadow: 0 2px 6px rgba(0,0,0,.05);
  position: sticky;
  top: 0;
  z-index: 10;
}
.site-header .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1rem 0;
}
.logo {
  font-family: var(--font-header);
  font-weight: 700;
  font-size: 1.5rem;
  color: var(--accent);
}

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

/* Menu mobilne (checkbox hack) */
#menu-toggle { display: none; }
.hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  cursor: pointer;
}
.hamburger span {
  width: 24px;
  height: 3px;
  background: var(--text-main);
  border-radius: 2px;
}

/* Hero split */
.hero-split {
  display: grid;
  grid-template-columns: 1fr 1fr;
  align-items: center;
  gap: 3rem;
  padding: 4rem 0;
}
.hero-left h1 { margin-bottom: 1rem; }
.hero-left p {
  font-size: 1.125rem;
  color: var(--text-muted);
  margin-bottom: 2rem;
}
.hero-right {
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--bg-surface);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 3rem;
  position: relative;
  overflow: hidden;
}
.hero-right::before {
  content: "";
  position: absolute;
  inset: 0;
  background: radial-gradient(circle at 70% 30%, rgba(37,99,235,.08) 0%, transparent 40%);
  pointer-events: none;
}
.formula-accent {
  font-family: var(--font-header);
  font-size: clamp(2rem, 1.5rem + 2.5vw, 3.5rem);
  color: var(--accent);
  user-select: none;
}

/* Siatka ofert – 3 kolumny na desktopie */
.offers-grid,
.partners-grid {
  display: grid;
  gap: 2rem;
  grid-template-columns: repeat(3, 1fr);
}

/* Karty */
.job-card,
.partner-link {
  background: var(--bg-surface);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 2rem;
  transition: transform .2s, box-shadow .2s;
}
.job-card:hover,
.partner-link:hover {
  transform: translateY(-4px);
  box-shadow: 0 8px 20px rgba(0,0,0,.08);
}

/* Stopka */
.site-footer {
  background: var(--text-main);
  color: #e5e7eb;
  padding: 3rem 0 2rem;
  margin-top: 4rem;
}
.footer-content {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 2rem;
}
.footer-section h4 {
  font-size: 1.125rem;
  margin-bottom: 1rem;
  color: #fff;
}
.footer-section a {
  color: #d1d5db;
}
.footer-section a:hover { color: var(--accent); }

/* Akordeon FAQ */
details {
  background: var(--bg-surface);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 1rem 1.5rem;
  margin-bottom: 1rem;
}
summary {
  font-weight: 600;
  cursor: pointer;
  list-style: none;
  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 p {
  margin-top: 1rem;
  color: var(--text-muted);
}

/* Pokaż więcej partnerów (checkbox hack) – dokładny kod */
.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; }

/* Mobile */
@media (max-width: 768px) {
  .hamburger { display: flex; }
  .main-nav {
    position: fixed;
    inset: 0 0 0 30%;
    background: var(--bg-surface);
    padding: 6rem 2rem;
    transform: translateX(100%);
    transition: transform .3s;
  }
  #menu-toggle:checked ~ .main-nav { transform: translateX(0); }

  .hero-split {
    grid-template-columns: 1fr;
    text-align: center;
  }

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