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

:root {
  /* Kolory */
  --bg-body: #f8f9fa;
  --bg-surface: #ffffff;
  --text-main: #111827;
  --text-muted: #6b7280;
  --accent: #0d9488;
  --accent-hover: #0f766e;
  --border-radius: 12px;
  --shadow: 0 4px 12px rgba(0,0,0,0.06);
  --max-width: 1200px;
  --gap: 1.5rem;
}

/* Global Reset & Base */
*,
*::before,
*::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}
html {
  scroll-behavior: smooth;
}
body {
  font-family: 'Inter', sans-serif;
  font-size: 1rem;
  line-height: 1.6;
  color: var(--text-main);
  background: var(--bg-body);
  -webkit-font-smoothing: antialiased;
}

/* Typografia */
h1, h2, h3 {
  font-family: 'Manrope', sans-serif;
  font-weight: 700;
  line-height: 1.2;
  margin-bottom: 0.5em;
}
h1 { font-size: clamp(2rem, 4vw, 3rem); }
h2 { font-size: clamp(1.5rem, 3vw, 2.25rem); }
h3 { font-size: clamp(1.125rem, 2vw, 1.5rem); }
p { margin-bottom: 1em; }
a { color: inherit; text-decoration: none; }

/* Layout Containers */
.container {
  width: 90%;
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 2rem 0;
}

/* Header */
.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: 'Manrope', sans-serif;
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--accent);
}

/* Navigation */
.main-nav ul {
  list-style: none;
  display: flex;
  gap: 2rem;
}
.main-nav a {
  font-weight: 600;
  color: var(--text-muted);
  transition: color .2s;
}
.main-nav a:hover,
.main-nav a:focus {
  color: var(--accent);
}

/* Mobile Menu (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;
}
@media (max-width: 768px) {
  .hamburger { display: flex; }
  .main-nav {
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: var(--bg-surface);
    box-shadow: var(--shadow);
    transform: translateY(-150%);
    transition: transform .3s ease;
  }
  .main-nav ul {
    flex-direction: column;
    padding: 1.5rem var(--gap);
  }
  #menu-toggle:checked ~ .main-nav {
    transform: translateY(0);
  }
}

/* Hero */
.hero {
  background: var(--bg-surface);
  padding: 3rem 0 4rem;
  text-align: center;
}
.hero h1 { margin-bottom: 1rem; }
.hero p {
  max-width: 700px;
  margin: 0 auto 2rem;
  color: var(--text-muted);
}

/* Buttons */
.btn {
  display: inline-block;
  padding: .75rem 1.75rem;
  border-radius: var(--border-radius);
  font-weight: 600;
  background: var(--accent);
  color: #fff;
  transition: background .2s;
}
.btn:hover,
.btn:focus {
  background: var(--accent-hover);
}

/* Offers Grid */
.offers-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--gap);
}
@media (max-width: 768px) {
  .offers-grid { grid-template-columns: 1fr; }
}

/* Job Card */
.job-card {
  background: var(--bg-surface);
  border-radius: var(--border-radius);
  box-shadow: var(--shadow);
  padding: 1.75rem;
  display: flex;
  flex-direction: column;
  gap: .75rem;
}
.job-card h3 {
  color: var(--accent);
}
.job-card .meta {
  font-size: .875rem;
  color: var(--text-muted);
}

/* Partners */
.partners-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--gap);
}
@media (max-width: 768px) {
  .partners-grid { grid-template-columns: 1fr; }
}
.partner-link {
  background: var(--bg-surface);
  border-radius: var(--border-radius);
  box-shadow: var(--shadow);
  padding: 1.5rem;
  text-align: center;
  font-weight: 600;
  color: var(--text-muted);
  transition: color .2s, box-shadow .2s;
}
.partner-link:hover,
.partner-link:focus {
  color: var(--accent);
  box-shadow: 0 6px 16px rgba(0,0,0,.08);
}

/* Show More Partners (Checkbox Hack) */
.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-container {
  text-align: center;
  margin-top: 1.5rem;
}
.show-more-label {
  cursor: pointer;
  color: var(--accent);
  font-weight: 600;
}

/* FAQ Accordion */
details {
  background: var(--bg-surface);
  border-radius: var(--border-radius);
  box-shadow: var(--shadow);
  padding: 1rem 1.5rem;
  margin-bottom: 1rem;
}
summary {
  cursor: pointer;
  font-weight: 600;
  list-style: none;
  display: flex;
  justify-content: space-between;
  align-items: center;
}
summary::after {
  content: '+';
  font-size: 1.25rem;
  color: var(--accent);
}
details[open] summary::after { content: '−'; }
details p {
  margin-top: 1rem;
  color: var(--text-muted);
}

/* Footer */
.site-footer {
  background: var(--text-main);
  color: var(--bg-body);
  padding: 2.5rem 0 2rem;
}
.footer-content {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 2rem;
}
.footer-section h4 {
  margin-bottom: .75rem;
  color: var(--accent);
}
.footer-section a {
  color: var(--bg-body);
  line-height: 1.8;
  transition: color .2s;
}
.footer-section a:hover {
  color: var(--accent);
}