/* =====================================================
   MSFG Calculator Suite — Layout
   Header, footer, navigation, page structure
   ===================================================== */

/* ---- Site Header ---- */
.site-header {
  background: var(--color-white);
  border-bottom: 1px solid var(--color-gray-200);
  position: sticky;
  top: 0;
  z-index: 1000;
  box-shadow: var(--shadow-sm);
}

.site-header__inner {
  max-width: var(--container-max);
  margin: 0 auto;
  display: flex;
  align-items: center;
  gap: var(--space-lg);
  padding: var(--space-sm) var(--space-lg);
  min-height: 56px;
}

.site-header__brand {
  display: flex;
  align-items: center;
  flex-shrink: 0;
}

.site-header__logo {
  height: 40px;
  width: auto;
  display: block;
}

.site-header__nav {
  display: flex;
  align-items: center;
  gap: var(--space-xs);
  margin-left: auto;
}

.site-header__link {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  padding: var(--space-sm) var(--space-md);
  border-radius: 6px;
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--color-gray-700);
  background: none;
  border: none;
  cursor: pointer;
  transition: all var(--transition);
  text-decoration: none;
  white-space: nowrap;
}

.site-header__link:hover,
.site-header__link.active {
  background: var(--brand-light);
  color: var(--brand-primary);
}

/* Report badge */
.site-header__report-link {
  position: relative;
}

.report-badge {
  position: absolute;
  top: 0;
  right: 0;
  min-width: 17px;
  height: 17px;
  background: var(--color-danger, #dc3545);
  color: #fff;
  font-size: 0.65rem;
  font-weight: 700;
  border-radius: 999px;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 0 4px;
  line-height: 1;
  transform: translate(40%, -30%);
  pointer-events: none;
}

/* Dropdown */
.site-header__dropdown {
  position: relative;
}

.site-header__dropdown-trigger {
  font-family: var(--font-body);
}

.site-header__dropdown-menu {
  display: none;
  position: absolute;
  top: 100%;
  right: 0;
  min-width: 280px;
  max-height: 70vh;
  overflow-y: auto;
  background: var(--color-white);
  border: 1px solid var(--color-gray-200);
  border-radius: var(--border-radius);
  box-shadow: var(--shadow-lg);
  padding: var(--space-sm) 0;
  z-index: 1001;
}

.site-header__dropdown:hover .site-header__dropdown-menu,
.site-header__dropdown:focus-within .site-header__dropdown-menu {
  display: block;
}

.site-header__dropdown-group {
  padding: var(--space-xs) 0;
}

.site-header__dropdown-group + .site-header__dropdown-group {
  border-top: 1px solid var(--color-gray-100);
}

.site-header__dropdown-label {
  font-size: 0.7rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--color-gray-500);
  padding: var(--space-sm) var(--space-lg);
}

.site-header__dropdown-item {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  padding: var(--space-sm) var(--space-lg);
  font-size: 0.85rem;
  color: var(--color-gray-700);
  transition: background var(--transition);
}

.site-header__dropdown-item:hover {
  background: var(--color-gray-50);
  color: var(--brand-primary);
}

.site-header__dropdown-icon {
  font-size: 1rem;
  width: 24px;
  text-align: center;
}

/* Mobile toggle */
.site-header__mobile-toggle {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  padding: var(--space-sm);
  color: var(--color-gray-700);
  margin-left: auto;
}

@media (max-width: 768px) {
  .site-header__nav { display: none; }
  .site-header__mobile-toggle { display: block; }

  .site-header__nav.open {
    display: flex;
    flex-direction: column;
    position: absolute;
    top: 56px;
    left: 0;
    right: 0;
    background: var(--color-white);
    border-bottom: 1px solid var(--color-gray-200);
    box-shadow: var(--shadow-md);
    padding: var(--space-md);
    gap: var(--space-xs);
  }

  .site-header__dropdown-menu {
    position: static;
    box-shadow: none;
    border: none;
    max-height: none;
  }
}

/* ---- Site Main ---- */
.site-main {
  max-width: var(--container-max);
  margin: 0 auto;
  padding: var(--space-lg) var(--space-lg);
  min-height: calc(100vh - 56px - 120px);
}

/* ---- Site Footer ---- */
.site-footer {
  background: var(--color-gray-900);
  color: var(--color-gray-300);
  padding: var(--space-xl) var(--space-lg);
  margin-top: var(--space-2xl);
}

.site-footer__inner {
  max-width: var(--container-max);
  margin: 0 auto;
}

.site-footer__top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-lg);
  margin-bottom: var(--space-lg);
}

.site-footer__disclaimer {
  font-size: 0.8rem;
  color: var(--color-gray-500);
  max-width: 640px;
  margin: 0;
  line-height: 1.5;
}

.site-footer__ehl {
  height: 60px;
  width: auto;
  flex-shrink: 0;
  border-radius: 4px;
}

.site-footer__brand {
  text-align: center;
  padding-top: var(--space-md);
  border-top: 1px solid var(--color-gray-700);
}

.site-footer__tradename {
  font-size: 0.8rem;
  color: var(--color-gray-400);
  margin-bottom: var(--space-xs);
}

.site-footer__company {
  font-family: var(--font-heading);
  font-weight: 600;
  font-size: 1rem;
  color: var(--color-white);
}

@media (max-width: 600px) {
  .site-footer__top {
    flex-direction: column;
    text-align: center;
  }

  .site-footer__ehl {
    height: 50px;
  }
}

/* ---- Calculator Page Layout ---- */
.calc-page {
  background: var(--color-white);
  border-radius: var(--border-radius-lg);
  box-shadow: var(--shadow-md);
  overflow: hidden;
}

.calc-page__header {
  padding: var(--space-lg) var(--space-xl) var(--space-md);
  border-bottom: 1px solid var(--color-gray-100);
}

.calc-page__header h1 {
  margin-bottom: var(--space-xs);
}

.calc-page__header p {
  color: var(--color-gray-500);
  font-size: 0.95rem;
  margin: 0;
  max-width: 700px;
}

.calc-page__body {
  padding: var(--space-lg);
}

.calc-page__footer {
  background: var(--color-gray-50);
  border-top: 1px solid var(--color-gray-100);
  padding: var(--space-md) var(--space-xl);
}

.calc-page__footer-title {
  font-weight: 600;
  font-size: 0.85rem;
  color: var(--color-gray-700);
  margin-bottom: var(--space-xs);
}

.calc-page__footer p {
  font-size: 0.8rem;
  color: var(--color-gray-500);
  margin: 0;
  line-height: 1.5;
}