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

:root {
  /* Colors */
  --bg-body: #f5f7fa;
  --bg-surface: #ffffff;
  --text-main: #1c1e21;
  --text-muted: #6b7280;
  --accent: #0ea5e9;
  --accent-hover: #0284c7;
  --radius: 6px;
  --shadow: 0 2px 4px rgba(0,0,0,0.04);
  --shadow-hover: 0 4px 8px rgba(0,0,0,0.06);
}

/* Global Reset & Base */
*,
*::before,
*::after { box-sizing: border-box; margin: 0; padding: 0; }

html { scroll-behavior: smooth; }

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

/* Typography */
h1 { font-size: clamp(1.75rem, 2vw + 1rem, 2.5rem); font-weight: 600; letter-spacing: -0.5px; }
h2 { font-size: clamp(1.375rem, 1.5vw + 0.75rem, 1.875rem); font-weight: 600; }
h3 { font-size: clamp(1.125rem, 1vw + 0.5rem, 1.375rem); font-weight: 600; }
p  { font-size: 1rem; }
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;
}

/* Site Header – Split-Nav with Pulse 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: 'JetBrains Mono', monospace;
  font-size: 1.25rem;
  font-weight: 500;
  color: var(--text-main);
  letter-spacing: -0.5px;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.5rem 1rem;
  background: var(--accent);
  color: #fff;
  border-radius: var(--radius);
  font-weight: 600;
  transition: background 0.2s;
}
.btn:hover { background: var(--accent-hover); }

/* Pulse Bar */
.pulse-bar {
  height: 3px;
  background: var(--accent);
  position: relative;
  overflow: hidden;
}
.pulse-bar::after {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(90deg, transparent, rgba(255,255,255,0.6), transparent);
  animation: pulse 2s linear infinite;
}
@keyframes pulse {
  0%   { left: -100%; }
  100% { left: 100%; }
}

/* Main Nav – Mobile First */
.main-nav ul {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  padding: 1rem 0;
}

.main-nav a {
  display: block;
  padding: 0.375rem 0;
  color: var(--text-main);
  font-weight: 600;
}

/* Hamburger – Checkbox Hack */
#menu-toggle { display: none; }
.hamburger {
  display: inline-flex;
  flex-direction: column;
  gap: 4px;
  cursor: pointer;
}
.hamburger span {
  width: 24px;
  height: 2px;
  background: var(--text-main);
  transition: transform 0.3s;
}
#menu-toggle:checked ~ .main-nav { display: block; }
#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); }

/* Desktop Nav */
@media (min-width: 768px) {
  .header-top { padding: 1rem 0; }
  .main-nav ul {
    flex-direction: row;
    gap: 1.5rem;
  }
  .hamburger { display: none; }
  #menu-toggle:not(:checked) ~ .main-nav { display: block; }
}

/* Sections */
section { padding: 3rem 0; }
.section-title { margin-bottom: 1.5rem; text-align: center; }

/* Signal Cards Grid – Job Cards */
.offers-grid,
.partners-grid {
  display: grid;
  gap: 1.5rem;
  grid-template-columns: 1fr;
}
@media (min-width: 768px) {
  .offers-grid,
  .partners-grid { grid-template-columns: repeat(3, 1fr); }
}

.job-card,
.partner-link {
  background: var(--bg-surface);
  border-radius: var(--radius);
  padding: 1.5rem;
  box-shadow: var(--shadow);
  transition: box-shadow 0.2s, transform 0.2s;
  position: relative;
  overflow: hidden;
}
.job-card:hover,
.partner-link:hover {
  box-shadow: var(--shadow-hover);
  transform: translateY(-2px);
}
.job-card::before,
.partner-link::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 4px;
  background: var(--accent);
  transform: skewY(-2deg);
  transform-origin: top left;
}

.job-card h3 { margin-bottom: 0.5rem; }
.job-card .meta {
  color: var(--text-muted);
  font-size: 0.875rem;
  margin-bottom: 0.75rem;
}

/* Accordion – FAQ */
details {
  background: var(--bg-surface);
  border-radius: var(--radius);
  padding: 1rem 1.25rem;
  margin-bottom: 0.75rem;
  box-shadow: var(--shadow);
}
summary {
  font-weight: 600;
  cursor: pointer;
  outline: none;
}
details[open] summary { margin-bottom: 0.5rem; }

/* Partners – Show More */
.partners-wrapper .show-more-checkbox { display: none; }
.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; }

/* Site Footer */
.site-footer {
  background: #111827;
  color: #e5e7eb;
  padding: 2.5rem 0 1.5rem;
  margin-top: 3rem;
}
.footer-content {
  display: grid;
  gap: 2rem;
  grid-template-columns: 1fr;
}
@media (min-width: 768px) {
  .footer-content { grid-template-columns: repeat(3, 1fr); }
}
.footer-section h4 {
  font-size: 1rem;
  margin-bottom: 0.75rem;
}
.footer-section a {
  color: #9ca3af;
  font-size: 0.875rem;
}
.footer-section a:hover { color: var(--accent); }