/* PROFESSIONAL THEME */
@import url('https://fonts.googleapis.com/css2?family=Inter:wght@400;600&family=JetBrains+Mono:wght@400;600&display=swap');
:root {
  --bg-body: #f5f7fa;
  --bg-surface: #ffffff;
  --text-main: #111827;
  --text-muted: #6b7280;
  --accent: #1e3a8a;
  --accent-hover: #172554;
  --radius: 4px;
  --shadow: 0 1px 3px rgba(0,0,0,.08);
  --font-header: 'Inter', sans-serif;
  --font-body: 'Inter', sans-serif;
  --font-mono: 'JetBrains Mono', monospace;
  --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: var(--font-body);
  background: var(--bg-body);
  color: var(--text-main);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}
img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
ul { list-style: none; }

/* Typography */
h1, h2, h3, h4, h5, h6 { font-family: var(--font-header); font-weight: 600; line-height: 1.3; }
h1 { font-size: clamp(1.75rem, 2.5vw + 1rem, 2.5rem); }
h2 { font-size: clamp(1.5rem, 2vw + .75rem, 2rem); }
h3 { font-size: clamp(1.25rem, 1.5vw + .5rem, 1.5rem); }
p { margin-bottom: 1em; }
.text-muted { color: var(--text-muted); }

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

/* Header – Split-Bar */
.site-header {
  background: var(--bg-surface);
  box-shadow: var(--shadow);
  position: sticky;
  top: 0;
  z-index: 100;
}
.header-top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1rem 0;
}
.logo {
  font-family: var(--font-header);
  font-size: 1.5rem;
  font-weight: 600;
  color: var(--accent);
}
.tagline {
  font-size: .875rem;
  color: var(--text-muted);
  margin-top: .25rem;
}
.header-bottom {
  background: #eef2f7;
  border-top: 1px solid #e5e9ef;
  padding: .5rem 0;
}

/* Navigation – Desktop */
.main-nav ul {
  display: flex;
  gap: 2rem;
}
.main-nav a {
  font-size: .9375rem;
  font-weight: 600;
  padding: .5rem 0;
  border-bottom: 2px solid transparent;
  transition: border-color .2s;
}
.main-nav a:hover,
.main-nav a:focus {
  border-bottom-color: var(--accent);
}

/* Navigation – Mobile (Checkbox Hack) */
#menu-toggle { display: none; }
.hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  cursor: pointer;
  padding: .25rem;
}
.hamburger span {
  width: 24px;
  height: 2px;
  background: var(--text-main);
  transition: transform .3s;
}
@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 ease;
  }
  .main-nav ul {
    flex-direction: column;
    padding: 1rem 5%;
  }
  #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(5px, -5px);
  }
}

/* Buttons */
.btn {
  display: inline-block;
  font-family: var(--font-body);
  font-size: .9375rem;
  font-weight: 600;
  padding: .75rem 1.5rem;
  border-radius: var(--radius);
  background: var(--accent);
  color: #fff;
  border: none;
  cursor: pointer;
  transition: background .2s;
}
.btn:hover,
.btn:focus {
  background: var(--accent-hover);
}
.btn-outline {
  background: transparent;
  color: var(--accent);
  border: 1px solid var(--accent);
}
.btn-outline:hover {
  background: var(--accent);
  color: #fff;
}

/* Offers Grid */
.offers-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--gap);
}
@media (max-width: 900px) {
  .offers-grid { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 600px) {
  .offers-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: 1rem;
}
.job-card h3 {
  color: var(--accent);
}
.job-card .meta {
  font-size: .875rem;
  color: var(--text-muted);
}
.job-card .btn { align-self: start; }

/* Partners Section */
.partners-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--gap);
}
@media (max-width: 900px) {
  .partners-grid { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 600px) {
  .partners-grid { grid-template-columns: 1fr; }
}
.partner-link {
  display: block;
  background: var(--bg-surface);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 1.5rem;
  text-align: center;
  transition: box-shadow .2s;
}
.partner-link:hover {
  box-shadow: 0 2px 6px rgba(0,0,0,.12);
}
.partner-link img { height: 40px; margin: 0 auto .5rem; }
.partner-link span {
  font-weight: 600;
  font-size: .9375rem;
}

/* 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; }

/* Advice – Contract-Flow */
.advice {
  margin-top: 3rem;
}
.advice details {
  background: var(--bg-surface);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  margin-bottom: 1rem;
}
.advice summary {
  padding: 1rem 1.5rem;
  font-weight: 600;
  cursor: pointer;
  display: flex;
  justify-content: space-between;
  align-items: center;
}
.advice summary::after {
  content: "+";
  font-size: 1.25rem;
  color: var(--accent);
  transition: transform .2s;
}
.advice details[open] summary::after {
  transform: rotate(45deg);
}
.advice .content {
  padding: 0 1.5rem 1.5rem;
  border-top: 1px solid #e5e9ef;
}

/* Footer */
.site-footer {
  background: var(--accent);
  color: #fff;
  margin-top: 4rem;
}
.footer-content {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 2rem;
  padding: 2.5rem 0;
}
.footer-section h4 {
  font-size: 1rem;
  margin-bottom: .75rem;
}
.footer-section a {
  font-size: .875rem;
  opacity: .85;
  transition: opacity .2s;
}
.footer-section a:hover {
  opacity: 1;
}
.footer-bottom {
  text-align: center;
  padding: 1rem 0;
  font-size: .8125rem;
  opacity: .7;
  border-top: 1px solid rgba(255,255,255,.15);
}