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

:root {
  --bg-body: #f5f7fa;
  --bg-surface: #ffffff;
  --text-main: #1e1e1e;
  --text-muted: #6b7280;
  --accent: #0066cc;
  --accent-hover: #0052a3;
  --radius: 8px;
  --shadow: 0 2px 6px rgba(0,0,0,.05);
  --font-header: 'Inter', sans-serif;
  --font-body: 'Inter', sans-serif;
  --font-mono: 'JetBrains Mono', monospace;
}

/* Global Reset & Base */
* { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  font-family: var(--font-body);
  background: var(--bg-body);
  color: var(--text-main);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

/* Typography */
h1, h2, h3, h4, h5, h6 { font-family: var(--font-header); font-weight: 600; }
h1 { font-size: clamp(1.75rem, 2.5vw, 2.5rem); }
h2 { font-size: clamp(1.35rem, 2vw, 2rem); }
h3 { font-size: clamp(1.1rem, 1.5vw, 1.5rem); }
p { font-size: 1rem; color: var(--text-muted); }

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

/* Layout Containers */
.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 1rem;
}

/* 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: var(--font-header);
  font-weight: 600;
  font-size: 1.25rem;
  color: var(--text-main);
}

/* Navigation */
.main-nav ul {
  list-style: none;
  display: flex;
  gap: 1.5rem;
}
.main-nav a {
  font-weight: 500;
  color: var(--text-main);
  padding: 0.5rem 0;
  position: relative;
}
.main-nav a::after {
  content: "";
  position: absolute;
  left: 0; bottom: -4px;
  width: 0; height: 2px;
  background: var(--accent);
  transition: width .25s ease;
}
.main-nav a:hover::after { width: 100%; }

/* Mobile Menu (Checkbox Hack) */
#menu-toggle { display: none; }
.hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  cursor: pointer;
}
.hamburger span {
  width: 24px; height: 2px;
  background: var(--text-main);
  transition: transform .3s ease;
}
@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: translateX(-100%);
    transition: transform .3s ease;
  }
  .main-nav ul {
    flex-direction: column;
    padding: 1rem;
  }
  #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); }
}

/* Buttons */
.btn {
  display: inline-block;
  padding: 0.75rem 1.5rem;
  border-radius: var(--radius);
  background: var(--accent);
  color: #fff;
  font-weight: 500;
  transition: background .25s ease;
}
.btn:hover { background: var(--accent-hover); color: #fff; }

/* Cards Grid */
.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; }
}

/* Job Card */
.job-card {
  background: var(--bg-surface);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 1.5rem;
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
  transition: box-shadow .25s ease;
}
.job-card:hover { box-shadow: 0 4px 12px rgba(0,0,0,.08); }
.job-card h3 { color: var(--text-main); }
.job-card .meta {
  font-size: 0.875rem;
  color: var(--text-muted);
  font-family: var(--font-mono);
}
.job-card .specs {
  margin-top: 0.5rem;
  font-size: 0.875rem;
  color: var(--text-muted);
  max-height: 0;
  overflow: hidden;
  transition: max-height .3s ease;
}
.job-card:hover .specs { max-height: 10rem; }

/* Partner Link */
.partner-link {
  display: block;
  background: var(--bg-surface);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 1.25rem;
  text-align: center;
  font-weight: 500;
  color: var(--text-main);
  transition: background .25s ease, color .25s ease;
}
.partner-link:hover {
  background: var(--accent);
  color: #fff;
}

/* Partners Show More (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; }

/* Footer */
.site-footer {
  background: #111827;
  color: #e5e7eb;
  margin-top: 4rem;
  padding: 2.5rem 0 2rem;
}
.footer-content {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 2rem;
}
.footer-section h4 {
  font-size: 1rem;
  margin-bottom: 0.75rem;
  color: #fff;
}
.footer-section a {
  display: block;
  font-size: 0.875rem;
  margin-bottom: 0.5rem;
  color: #9ca3af;
}
.footer-section a:hover { color: #fff; }

/* Accordion (FAQ) */
details {
  background: var(--bg-surface);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 1rem 1.25rem;
  margin-bottom: 0.75rem;
}
summary {
  font-weight: 500;
  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 ease;
}
details[open] summary::after { transform: rotate(45deg); }
details[open] summary { margin-bottom: 0.5rem; }
details p { padding-right: 2rem; }

/* Utility */
.text-center { text-align: center; }
.mt-1 { margin-top: 0.5rem; }
.mt-2 { margin-top: 1rem; }
.mt-3 { margin-top: 1.5rem; }
.mb-1 { margin-bottom: 0.5rem; }
.mb-2 { margin-bottom: 1rem; }
.mb-3 { margin-bottom: 1.5rem; }