/**
 * Shared Header & Footer Styles
 * Used across all pages via PHP includes
 */

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

html {
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-body);
  background: var(--color-surface);
  color: var(--color-on-surface);
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

/* ─── Site Header ──────────────────────────────────────────────── */
.site-header {
  position: sticky;
  top: 0;
  z-index: 1000;
  background: rgba(248, 250, 251, 0.92);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid rgba(192, 199, 206, 0.2);
}

.site-header-inner {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 var(--space-6);
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 64px;
}

/* Logo & Brand */
.site-header-brand {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  text-decoration: none;
  transition: opacity 200ms ease-out;
}

.site-header-brand:hover {
  opacity: 0.8;
}

.site-header-logo {
  width: 32px;
  height: 32px;
  border-radius: var(--radius-sm);
  flex-shrink: 0;
}

.site-header-title {
  font-family: var(--font-display);
  font-size: var(--text-md);
  font-weight: var(--weight-bold);
  color: var(--color-on-surface);
  letter-spacing: var(--tracking-normal);
  white-space: nowrap;
}

.site-header-title .accent {
  color: var(--color-primary);
}

/* Mobile Menu Toggle (hamburger) */
.mobile-menu-toggle {
  display: none;
  width: 40px;
  height: 40px;
  background: transparent;
  border: none;
  cursor: pointer;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 5px;
  padding: 0;
  position: relative;
  z-index: 1001;
}

.mobile-menu-toggle span {
  display: block;
  width: 22px;
  height: 2px;
  background: var(--color-on-surface);
  border-radius: 2px;
  transition: all 200ms ease-out;
}

/* Checkbox hack for mobile menu */
#mobile-menu-checkbox {
  display: none;
}

#mobile-menu-checkbox:checked ~ .site-header-inner .mobile-menu-toggle span:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}

#mobile-menu-checkbox:checked ~ .site-header-inner .mobile-menu-toggle span:nth-child(2) {
  opacity: 0;
}

#mobile-menu-checkbox:checked ~ .site-header-inner .mobile-menu-toggle span:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

/* Navigation */
.site-header-nav {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  list-style: none;
}

.site-header-nav a {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  font-family: var(--font-body);
  font-size: var(--text-base);
  font-weight: var(--weight-medium);
  color: var(--color-on-surface-variant);
  text-decoration: none;
  padding: 0.5rem 0.875rem;
  border-radius: var(--radius-full);
  transition: background 200ms ease-out, color 200ms ease-out;
  white-space: nowrap;
}

.site-header-nav a:hover {
  background: rgba(0, 66, 94, 0.06);
  color: var(--color-primary);
}

.site-header-nav a.active {
  background: var(--color-primary-fixed);
  color: var(--color-primary);
  font-weight: var(--weight-semibold);
}

.site-header-nav a .material-symbols-outlined {
  font-size: 1.125rem;
  font-variation-settings: 'FILL' 0, 'wght' 400;
}

/* Primary CTA Button */
.site-header-nav a.site-header-cta {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  background: var(--gradient-cta) !important;
  color: #ffffff !important;
  font-family: var(--font-body);
  font-size: var(--text-base);
  font-weight: var(--weight-semibold);
  padding: 0.625rem 1.25rem;
  border-radius: var(--radius-md);
  border: none;
  text-decoration: none;
  cursor: pointer;
  box-shadow: var(--shadow-btn-sm);
  transition: transform 200ms ease-out, box-shadow 200ms ease-out, background 200ms ease-out;
  white-space: nowrap;
}

.site-header-nav a.site-header-cta:hover {
  background: var(--gradient-cta-hover) !important;
  color: #ffffff !important;
  box-shadow: var(--shadow-btn-resting);
  transform: translateY(-1px);
}

.site-header-nav a.site-header-cta:active {
  transform: translateY(0);
}

.site-header-nav a.site-header-cta .material-symbols-outlined {
  font-size: 1.125rem;
  font-variation-settings: 'FILL' 1, 'wght' 600;
  color: #ffffff !important;
}

/* ─── Site Footer ──────────────────────────────────────────────── */
.site-footer {
  background: var(--color-surface-lowest);
  border-top: 1px solid rgba(192, 199, 206, 0.2);
  padding: var(--space-10) var(--space-6) var(--space-8);
  margin-top: auto;
}

.site-footer-inner {
  max-width: 1200px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: var(--space-6);
}

/* Footer Top - Brand + Nav */
.site-footer-top {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: var(--space-8);
  flex-wrap: wrap;
}

.site-footer-brand {
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
  max-width: 320px;
}

.site-footer-logo-row {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  text-decoration: none;
}

.site-footer-logo {
  width: 28px;
  height: 28px;
  border-radius: var(--radius-sm);
}

.site-footer-title {
  font-family: var(--font-display);
  font-size: var(--text-md);
  font-weight: var(--weight-bold);
  color: var(--color-on-surface);
  letter-spacing: var(--tracking-normal);
}

.site-footer-title .accent {
  color: var(--color-primary);
}

.site-footer-tagline {
  font-family: var(--font-body);
  font-size: var(--text-sm);
  color: var(--color-on-surface-variant);
  line-height: var(--leading-relaxed);
}

/* Footer Navigation Groups */
.site-footer-nav {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
  gap: var(--space-8);
  flex: 1;
}

.site-footer-nav-group {
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
}

.site-footer-nav-title {
  font-family: var(--font-body);
  font-size: var(--text-xs);
  font-weight: var(--weight-bold);
  color: var(--color-outline);
  text-transform: uppercase;
  letter-spacing: var(--tracking-wider);
  margin-bottom: var(--space-1);
}

.site-footer-nav-group ul {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
}

.site-footer-nav-group a {
  font-family: var(--font-body);
  font-size: var(--text-base);
  font-weight: var(--weight-regular);
  color: var(--color-on-surface-variant);
  text-decoration: none;
  transition: color 200ms ease-out;
  display: inline-block;
}

.site-footer-nav-group a:hover {
  color: var(--color-primary);
}

/* Footer Bottom - Copyright + Legal */
.site-footer-bottom {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-4);
  padding-top: var(--space-6);
  border-top: 1px solid rgba(192, 199, 206, 0.15);
  flex-wrap: wrap;
}

.site-footer-copyright {
  font-family: var(--font-body);
  font-size: var(--text-sm);
  color: var(--color-outline);
}

.site-footer-legal {
  display: flex;
  align-items: center;
  gap: var(--space-4);
  list-style: none;
}

.site-footer-legal a {
  font-family: var(--font-body);
  font-size: var(--text-sm);
  color: var(--color-outline);
  text-decoration: none;
  transition: color 200ms ease-out;
}

.site-footer-legal a:hover {
  color: var(--color-primary);
}

/* ─── Mobile Responsive ────────────────────────────────────────── */
@media (max-width: 768px) {
  /* Show hamburger menu */
  .mobile-menu-toggle {
    display: flex;
  }

  /* Hide desktop nav by default */
  .site-header-nav {
    position: fixed;
    top: 64px;
    left: 0;
    right: 0;
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    background: var(--color-surface-lowest);
    border-bottom: 1px solid rgba(192, 199, 206, 0.2);
    box-shadow: var(--shadow-ambient);
    padding: var(--space-4) var(--space-6);
    transform: translateY(-100%);
    opacity: 0;
    visibility: hidden;
    transition: transform 300ms cubic-bezier(0.4, 0, 0.2, 1),
                opacity 300ms cubic-bezier(0.4, 0, 0.2, 1),
                visibility 300ms;
  }

  /* Show nav when checkbox is checked */
  #mobile-menu-checkbox:checked ~ .site-header-inner .site-header-nav {
    transform: translateY(0);
    opacity: 1;
    visibility: visible;
  }

  .site-header-nav a {
    border-radius: var(--radius-sm);
    padding: 0.75rem 1rem;
  }

  .site-header-cta {
    width: 100%;
    justify-content: center;
  }

  /* Hide brand text on very small screens */
  @media (max-width: 420px) {
    .site-header-title {
      display: none;
    }
  }

  /* Footer adjustments */
  .site-footer-top {
    flex-direction: column;
  }

  .site-footer-nav {
    grid-template-columns: 1fr 1fr;
    gap: var(--space-6);
  }

  .site-footer-bottom {
    flex-direction: column;
    align-items: flex-start;
  }

  .site-footer-legal {
    flex-wrap: wrap;
  }
}

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