/* ============================================================
   PAYCHECKBUDDY — MAIN SITE CSS
   Global layout, header, footer, nav, typography
   ============================================================ */

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

:root {
  --color-primary:    #2563eb;
  --color-primary-dk: #1d4ed8;
  --color-green:      #16a34a;
  --color-gray-50:    #f9fafb;
  --color-gray-100:   #f3f4f6;
  --color-gray-200:   #e5e7eb;
  --color-gray-400:   #9ca3af;
  --color-gray-600:   #4b5563;
  --color-gray-700:   #374151;
  --color-gray-900:   #111827;
  --font-sans: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
  --max-width:  1080px;
  --radius-sm:  6px;
  --radius-md:  10px;
  --radius-lg:  16px;
}

html { scroll-behavior: smooth; }

body {
  font-family: var(--font-sans);
  background: var(--color-gray-50);
  color: var(--color-gray-900);
  line-height: 1.6;
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
}

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

/* ============================================================
   HEADER
   ============================================================ */
.site-header {
  background: #fff;
  border-bottom: 1px solid var(--color-gray-200);
  position: sticky;
  top: 0;
  z-index: 100;
  box-shadow: 0 1px 4px rgba(0,0,0,0.06);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 60px;
  gap: 20px;
}

.site-logo {
  text-decoration: none;
}

.logo-text {
  font-size: 1.25rem;
  font-weight: 800;
  color: var(--color-gray-900);
  letter-spacing: -0.3px;
}

/* Primary Nav */
.main-navigation { display: flex; align-items: center; }

#primary-menu {
  list-style: none;
  display: flex;
  gap: 4px;
  margin: 0;
  padding: 0;
}

#primary-menu li a {
  display: block;
  padding: 6px 12px;
  border-radius: var(--radius-sm);
  text-decoration: none;
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--color-gray-700);
  transition: background 0.15s, color 0.15s;
}

#primary-menu li a:hover,
#primary-menu li.current-menu-item a {
  background: var(--color-gray-100);
  color: var(--color-primary);
}

/* Mobile menu toggle */
.menu-toggle {
  display: none;
  background: none;
  border: 1px solid var(--color-gray-200);
  border-radius: var(--radius-sm);
  padding: 8px 10px;
  cursor: pointer;
}

.hamburger,
.hamburger::before,
.hamburger::after {
  display: block;
  width: 20px;
  height: 2px;
  background: var(--color-gray-700);
  position: relative;
  transition: transform 0.2s;
}
.hamburger::before,
.hamburger::after {
  content: '';
  position: absolute;
  left: 0;
}
.hamburger::before { top: -6px; }
.hamburger::after  { top: 6px; }

@media (max-width: 640px) {
  .menu-toggle { display: flex; align-items: center; }

  #primary-menu {
    display: none;
    flex-direction: column;
    position: absolute;
    top: 60px; left: 0; right: 0;
    background: #fff;
    border-bottom: 1px solid var(--color-gray-200);
    padding: 12px;
    box-shadow: 0 4px 12px rgba(0,0,0,0.08);
  }

  #primary-menu.menu-open { display: flex; }
  #primary-menu li a { padding: 10px 14px; font-size: 1rem; }
}

/* ============================================================
   FOOTER
   ============================================================ */
.site-footer {
  background: var(--color-gray-900);
  color: #fff;
  margin-top: 60px;
  padding: 48px 0 24px;
}

.footer-columns {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 40px;
  margin-bottom: 40px;
}

@media (max-width: 720px) {
  .footer-columns { grid-template-columns: 1fr 1fr; gap: 28px; }
}

@media (max-width: 480px) {
  .footer-columns { grid-template-columns: 1fr; }
}

.footer-logo {
  font-size: 1.25rem;
  font-weight: 800;
  margin-bottom: 8px;
}

.footer-tagline {
  color: var(--color-gray-400);
  font-size: 0.875rem;
  line-height: 1.5;
}

.footer-heading {
  font-size: 0.75rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.8px;
  color: var(--color-gray-400);
  margin-bottom: 12px;
}

.footer-links {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.footer-links a {
  color: #d1d5db;
  text-decoration: none;
  font-size: 0.875rem;
  transition: color 0.15s;
}
.footer-links a:hover { color: #fff; }

.footer-bottom {
  border-top: 1px solid rgba(255,255,255,0.1);
  padding-top: 20px;
}

.footer-copy,
.footer-affiliate-disclosure {
  font-size: 0.775rem;
  color: var(--color-gray-400);
  line-height: 1.5;
  margin-bottom: 6px;
}

/* ============================================================
   EDITORIAL CONTENT (below calculator, informational articles)
   ============================================================ */
.editorial-content {
  max-width: 860px;
  margin: 48px auto 0;
  padding: 0 20px 60px;
}

.editorial-content h2 {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--color-gray-900);
  margin: 36px 0 12px;
  letter-spacing: -0.3px;
}

.editorial-content h3 {
  font-size: 1.2rem;
  font-weight: 700;
  color: var(--color-gray-900);
  margin: 28px 0 10px;
}

.editorial-content p {
  color: var(--color-gray-700);
  margin-bottom: 16px;
  line-height: 1.7;
}

.editorial-content ul,
.editorial-content ol {
  color: var(--color-gray-700);
  margin: 0 0 16px 24px;
  line-height: 1.7;
}

.editorial-content table {
  width: 100%;
  border-collapse: collapse;
  margin-bottom: 24px;
  font-size: 0.9rem;
}

.editorial-content th,
.editorial-content td {
  padding: 10px 14px;
  text-align: left;
  border: 1px solid var(--color-gray-200);
}

.editorial-content th {
  background: var(--color-gray-100);
  font-weight: 700;
  font-size: 0.8rem;
  text-transform: uppercase;
  letter-spacing: 0.4px;
  color: var(--color-gray-600);
}

.editorial-content tr:hover td { background: var(--color-gray-50); }

/* FAQ Accordion */
.faq-section { margin-top: 40px; }
.faq-item { border-bottom: 1px solid var(--color-gray-200); }
.faq-question {
  width: 100%;
  background: none;
  border: none;
  padding: 16px 0;
  text-align: left;
  font-size: 1rem;
  font-weight: 600;
  color: var(--color-gray-900);
  cursor: pointer;
  display: flex;
  justify-content: space-between;
  align-items: center;
}
.faq-question::after { content: '+'; font-size: 1.4rem; color: var(--color-primary); font-weight: 400; }
.faq-question.open::after { content: '−'; }
.faq-answer { padding: 0 0 16px; color: var(--color-gray-700); display: none; line-height: 1.7; }
.faq-answer.open { display: block; }

/* ============================================================
   UTILITY CLASSES
   ============================================================ */
.visually-hidden {
  position: absolute; width: 1px; height: 1px;
  padding: 0; margin: -1px; overflow: hidden;
  clip: rect(0,0,0,0); white-space: nowrap; border: 0;
}

.text-center { text-align: center; }
.text-green  { color: var(--color-green); }
.font-bold   { font-weight: 700; }

/* ============================================================
   SKIP LINK (accessibility)
   ============================================================ */
.skip-link {
  position: absolute; top: -40px; left: 0;
  background: var(--color-primary); color: #fff;
  padding: 8px 16px; z-index: 9999;
  text-decoration: none; font-weight: 600;
  transition: top 0.2s;
}
.skip-link:focus { top: 0; }