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

:root {
  /* Colors */
  --bg-body: #f8fafc;
  --bg-surface: #ffffff;
  --text-main: #111827;
  --text-muted: #6b7280;
  --accent: #0ea5e9;
  --accent-hover: #0284c7;
  --radius: 10px;
  --shadow: 0 4px 12px rgba(0,0,0,.06);
  --max-width: 1200px;
  --header-height: 80px;

  /* Typography */
  --font-header: 'Manrope', sans-serif;
  --font-body: 'Inter', sans-serif;
}

*,
*::before,
*::after { box-sizing: border-box; margin: 0; padding: 0; }

body {
  background: var(--bg-body);
  color: var(--text-main);
  font-family: var(--font-body);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-header);
  font-weight: 700;
  line-height: 1.3;
}

h1 { font-size: clamp(2rem, 2.5vw, 3rem); }
h2 { font-size: clamp(1.5rem, 2vw, 2.25rem); }
h3 { font-size: clamp(1.25rem, 1.5vw, 1.75rem); }

a { color: inherit; text-decoration: none; }
img { max-width: 100%; display: block; }

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

/* Header */
.site-header {
  background: var(--bg-surface);
  box-shadow: var(--shadow);
  position: sticky;
  top: 0;
  z-index: 100;
}

.header-inner {
  height: var(--header-height);
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.logo {
  font-family: var(--font-header);
  font-weight: 700;
  font-size: 1.5rem;
  color: var(--accent);
}

/* Desktop Nav */
.main-nav ul {
  list-style: none;
  display: flex;
  gap: 2rem;
}

.main-nav a {
  font-weight: 500;
  color: var(--text-main);
  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: 6px;
  cursor: pointer;
}
.hamburger span {
  width: 28px;
  height: 3px;
  background: var(--text-main);
  border-radius: 2px;
  transition: .3s;
}

/* Hero Split */
.hero {
  display: grid;
  grid-template-columns: 1fr 1fr;
  align-items: center;
  gap: 3rem;
  padding: 4rem 0;
}
.hero-text h1 { margin-bottom: 1rem; }
.hero-text p {
  font-size: 1.125rem;
  color: var(--text-muted);
  margin-bottom: 2rem;
}
.hero-illustration {
  display: flex;
  align-items: center;
  justify-content: center;
}
.hero-illustration svg {
  width: 100%;
  height: auto;
  max-height: 320px;
}

/* Buttons */
.btn {
  display: inline-block;
  padding: .9rem 2rem;
  background: var(--accent);
  color: #fff;
  border-radius: var(--radius);
  font-weight: 600;
  transition: background .2s;
}
.btn:hover { background: var(--accent-hover); }

/* Cards Grid (3 cols desktop) */
.offers-grid,
.partners-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 2rem;
}

.job-card,
.partner-link {
  background: var(--bg-surface);
  border-radius: var(--radius);
  padding: 2rem;
  box-shadow: var(--shadow);
  display: flex;
  flex-direction: column;
  gap: .75rem;
}
.job-card h3 { margin-bottom: .5rem; }
.job-card .meta {
  font-size: .875rem;
  color: var(--text-muted);
}
.job-card .btn { align-self: start; margin-top: 1rem; }

.partner-link {
  align-items: center;
  text-align: center;
  font-weight: 600;
  color: var(--accent);
  transition: transform .2s;
}
.partner-link:hover { transform: translateY(-4px); }

/* Cascade Overlap for Advice Cards */
.advice-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 2rem;
  margin-top: -2rem; /* overlap trigger */
}
.advice-card {
  background: var(--bg-surface);
  border-radius: var(--radius);
  padding: 2rem;
  box-shadow: var(--shadow);
  margin-top: 2rem; /* creates cascade */
}
.advice-card h3 { margin-bottom: 1rem; }

/* FAQ Accordion (details/summary) */
details {
  background: var(--bg-surface);
  border-radius: var(--radius);
  padding: 1.25rem 1.5rem;
  box-shadow: var(--shadow);
  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: 1.5rem;
  color: var(--accent);
  transition: transform .2s;
}
details[open] summary::after { transform: rotate(45deg); }
details p { padding-top: 1rem; color: var(--text-muted); }

/* Footer */
.site-footer {
  background: var(--text-main);
  color: #fff;
  margin-top: 5rem;
  padding: 3rem 0 2rem;
}
.footer-content {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 2rem;
}
.footer-section h4 {
  margin-bottom: 1rem;
  font-size: 1.125rem;
}
.footer-section ul {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: .5rem;
}
.footer-section a {
  color: #d1d5db;
  transition: color .2s;
}
.footer-section a:hover { color: var(--accent); }

/* Partners Show-More (Checkbox Hack) */
.show-more-checkbox { display: none; }
.partners-hidden { display: none; }
.show-more-checkbox:checked ~ .partners-hidden { display: grid; }
.show-more-checkbox:checked ~ .show-more-container { display: none; }

/* Responsive */
@media (max-width: 900px) {
  .hero { grid-template-columns: 1fr; text-align: center; }
  .offers-grid,
  .partners-grid,
  .advice-grid { grid-template-columns: 1fr; }
}

@media (max-width: 768px) {
  .main-nav {
    position: fixed;
    inset: var(--header-height) 0 0 0;
    background: var(--bg-surface);
    transform: translateX(100%);
    transition: transform .3s;
    padding: 2rem;
  }
  .main-nav ul {
    flex-direction: column;
    gap: 1.5rem;
  }
  #menu-toggle:checked ~ .main-nav { transform: translateX(0); }
  .hamburger { display: flex; }
}