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

:root {
  --bg-body: #f7f9fb;
  --bg-surface: #ffffff;
  --text-main: #11181f;
  --text-muted: #5c6b7a;
  --accent: #00bfa5;
  --accent-hover: #009e8c;
  --radius: 6px;
  --shadow: 0 2px 6px rgba(17,24,31,.06);
  --max-width: 1200px;
  --font-header: 'Manrope', sans-serif;
  --font-body: 'Inter', sans-serif;
}

/* GLOBAL */
* { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.6;
  color: var(--text-main);
  background: var(--bg-body);
  -webkit-font-smoothing: antialiased;
}
h1, h2, h3 { font-family: var(--font-header); font-weight: 800; line-height: 1.2; }
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); }
a { color: inherit; text-decoration: none; }
img { max-width: 100%; display: block; }

/* LAYOUT */
.container { max-width: var(--max-width); margin: 0 auto; padding: 0 20px; }

/* HEADER – Split-Nav Iceberg */
.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: 16px 0;
}
.logo { font-family: var(--font-header); font-weight: 800; font-size: 1.25rem; color: var(--accent); }

/* NAV */
.main-nav ul {
  list-style: none;
  display: flex;
  gap: 32px;
}
.main-nav a {
  font-weight: 600;
  color: var(--text-muted);
  transition: color .2s;
}
.main-nav a:hover { color: var(--accent); }

/* MOBILE MENU – Checkbox Hack */
#menu-toggle { display: none; }
.hamburger {
  display: none;
  flex-direction: column;
  gap: 4px;
  cursor: pointer;
}
.hamburger span {
  width: 24px;
  height: 2px;
  background: var(--text-main);
  transition: .2s;
}
@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(-120%);
    transition: transform .3s;
  }
  .main-nav ul { flex-direction: column; padding: 20px; gap: 16px; }
  #menu-toggle:checked ~ .main-nav { transform: translateY(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(7px,-6px); }
}

/* HERO */
.hero {
  padding: 80px 0 60px;
  background: var(--bg-surface);
  position: relative;
  overflow: hidden;
}
.hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background: repeating-linear-gradient(
    45deg,
    transparent,
    transparent 40px,
    rgba(0,191,165,.01) 40px,
    rgba(0,191,165,.01) 80px
  );
  pointer-events: none;
}
.hero-content { max-width: 680px; margin: 0 auto; text-align: center; }
.hero h1 { margin-bottom: 16px; }
.hero p { color: var(--text-muted); margin-bottom: 32px; font-size: clamp(1rem, 2vw, 1.125rem); }

/* BUTTONS */
.btn {
  display: inline-block;
  padding: 12px 28px;
  font-weight: 600;
  border-radius: var(--radius);
  background: var(--accent);
  color: #fff;
  transition: background .2s;
}
.btn:hover { background: var(--accent-hover); }

/* SECTIONS */
section { padding: 60px 0; }
.section-title { text-align: center; margin-bottom: 40px; }

/* OFFERS GRID – 3 columns desktop */
.offers-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}
@media (max-width: 992px) { .offers-grid { grid-template-columns: 1fr 1fr; } }
@media (max-width: 600px) { .offers-grid { grid-template-columns: 1fr; } }

/* KARTA OFERTY – Kinetic-Card Ribbon */
.job-card {
  background: var(--bg-surface);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 24px;
  display: flex;
  flex-direction: column;
  gap: 12px;
  position: relative;
  overflow: hidden;
}
.job-card::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 4px;
  background: var(--accent);
}
.job-card h3 { margin-bottom: 4px; }
.job-card .meta { color: var(--text-muted); font-size: .875rem; }
.job-card .excerpt { flex: 1 0 auto; margin-top: 8px; }

/* PARTNERS GRID – 3 columns desktop */
.partners-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}
@media (max-width: 768px) { .partners-grid { grid-template-columns: 1fr 1fr; } }
@media (max-width: 480px) { .partners-grid { grid-template-columns: 1fr; } }

.partner-link {
  display: block;
  background: var(--bg-surface);
  padding: 32px 24px;
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  text-align: center;
  transition: transform .2s, box-shadow .2s;
}
.partner-link:hover { transform: translateY(-4px); box-shadow: 0 4px 12px rgba(17,24,31,.08); }

/* PARTNERS SHOW-MORE – 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: 24px; }
.show-more-checkbox { display: none; }

/* FAQ – Akordeon */
details {
  background: var(--bg-surface);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 20px;
  margin-bottom: 12px;
}
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: 12px; color: var(--text-muted); }

/* FOOTER */
.site-footer {
  background: var(--text-main);
  color: #fff;
  padding: 48px 0 24px;
  margin-top: 80px;
}
.footer-content {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 40px;
  margin-bottom: 32px;
}
.footer-section h4 { margin-bottom: 12px; font-size: 1rem; }
.footer-section ul { list-style: none; font-size: .875rem; line-height: 2; }
.footer-section a { color: rgba(255,255,255,.7); }
.footer-section a:hover { color: var(--accent); }
.footer-bottom {
  border-top: 1px solid rgba(255,255,255,.12);
  padding-top: 24px;
  text-align: center;
  font-size: .8125rem;
  color: rgba(255,255,255,.5);
}