/* Header / footer / navigation layout. */

/* ---------- Header ---------- */
.ibm-header {
  background: #fff;
  border-bottom: 1px solid var(--color-border-subtle);
  position: sticky;
  top: 0;
  z-index: 100;
}
.ibm-header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-5);
  padding: var(--space-3) 0;
}
.ibm-brand {
  display: inline-flex;
  align-items: center;
  font-size: var(--fs-h3);
  font-weight: var(--fw-bold);
  color: var(--color-text);
  text-decoration: none;
  line-height: 1;
}
.ibm-brand:hover { color: var(--color-primary); text-decoration: none; }
.ibm-brand img { max-height: 40px; width: auto; }

/* Primary nav */
.ibm-nav {
  display: flex;
  align-items: center;
  gap: 0;
}
.ibm-nav__list {
  display: flex;
  list-style: none;
  margin: 0;
  padding: 0;
  gap: 0;
}
.ibm-nav__item,
.ibm-nav .menu-item { position: relative; list-style: none; margin: 0; }
.ibm-nav__item > a,
.ibm-nav .menu-item > a {
  display: inline-flex;
  align-items: center;
  height: 35px;
  padding: 0 15px;
  font-size: var(--fs-nav);
  font-weight: var(--fw-regular);
  color: var(--color-text);
  text-decoration: none;
  border-bottom: 2px solid transparent;
  line-height: 20px;
}
.ibm-nav__item > a:hover,
.ibm-nav__item.current-menu-item > a,
.ibm-nav__item.current-menu-parent > a,
.ibm-nav .menu-item > a:hover,
.ibm-nav .menu-item.current-menu-item > a,
.ibm-nav .menu-item.current-menu-parent > a {
  color: var(--color-primary);
  border-bottom-color: var(--color-primary);
  text-decoration: none;
}
.ibm-nav__item--has-children > a::after,
.ibm-nav .menu-item-has-children > a::after {
  content: '';
  display: inline-block;
  width: 0;
  height: 0;
  margin-left: 6px;
  vertical-align: middle;
  border-left: 4px solid transparent;
  border-right: 4px solid transparent;
  border-top: 5px solid currentColor;
  opacity: 0.6;
  transition: transform var(--transition-fast), opacity var(--transition-fast);
}
.ibm-nav__item--has-children:hover > a::after,
.ibm-nav .menu-item-has-children:hover > a::after {
  transform: rotate(180deg);
  opacity: 1;
}

/* Hide stray decoration where wp_nav_menu wrapper outputs raw <ul> */
.ibm-nav ul { list-style: none; padding: 0; margin: 0; }

/* Submenu */
.ibm-nav .sub-menu {
  position: absolute;
  top: 100%;
  left: 0;
  min-width: 220px;
  background: #fff;
  border: 1px solid var(--color-border-subtle);
  box-shadow: var(--shadow-dropdown);
  padding: var(--space-2) 0;
  list-style: none;
  margin: 0;
  opacity: 0;
  visibility: hidden;
  transform: translateY(6px);
  transition: opacity var(--transition-fast), transform var(--transition-fast), visibility var(--transition-fast);
  z-index: 110;
}
.ibm-nav__item:hover > .sub-menu,
.ibm-nav__item:focus-within > .sub-menu,
.ibm-nav .menu-item:hover > .sub-menu,
.ibm-nav .menu-item:focus-within > .sub-menu {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}
.ibm-nav .sub-menu li { margin: 0; }
.ibm-nav .sub-menu a {
  display: block;
  padding: var(--space-2) var(--space-4);
  font-size: var(--fs-nav);
  color: var(--color-text);
  text-decoration: none;
  border-bottom: 0;
  height: auto;
}
.ibm-nav .sub-menu a:hover {
  color: var(--color-primary);
  background: var(--color-bg-soft);
}

/* Header right (CTA + search) */
.ibm-header__right {
  display: flex;
  align-items: center;
  gap: var(--space-3);
}

/* Mobile toggle */
.ibm-nav-toggle {
  display: none;
  background: transparent;
  border: 0;
  color: var(--color-text);
  font-size: 24px;
  cursor: pointer;
  padding: var(--space-2);
}

/* Hide mobile-nav close button on desktop — only visible inside open drawer */
.ibm-nav-close { display: none; }

@media (max-width: 992px) {
  /* 3-zone mobile header: hamburger LEFT, brand CENTER, Get a Quote RIGHT */
  .ibm-header__inner {
    gap: var(--space-3);
  }
  .ibm-nav-toggle {
    display: inline-flex;
    order: 1;
    flex: 0 0 auto;
  }
  .ibm-brand {
    order: 2;
    flex: 1;
    justify-content: center;
    text-align: center;
    color: #000;
    font-size: 16px;
    overflow: hidden;
    white-space: nowrap;
    text-overflow: ellipsis;
  }
  .ibm-brand img { margin: 0 auto; max-height: 32px; }
  .ibm-nav { order: 3; }
  .ibm-header__right {
    order: 4;
    flex: 0 0 auto;
  }

  .ibm-nav {
    position: fixed;
    inset: 0;
    background: #fff;
    flex-direction: column;
    align-items: stretch;
    padding: var(--space-15) var(--space-5) var(--space-5);
    transform: translateX(100%);
    transition: transform var(--transition-base);
    overflow-y: auto;
    z-index: 200;
  }
  .ibm-nav.is-open { transform: translateX(0); }
  .ibm-nav__list { flex-direction: column; }
  .ibm-nav__item > a {
    height: auto;
    padding: var(--space-3) 0;
    border-bottom: 1px solid var(--color-border-subtle);
    font-size: var(--fs-body);
  }
  .ibm-nav__item--has-children > a::after { display: none; }
  .ibm-nav .sub-menu {
    position: static;
    opacity: 1;
    visibility: visible;
    transform: none;
    border: 0;
    box-shadow: none;
    padding: 0 0 var(--space-3) var(--space-4);
  }
  .ibm-nav-close {
    display: inline-flex;
    position: absolute;
    top: var(--space-3);
    right: var(--space-3);
    background: transparent;
    border: 0;
    font-size: 28px;
    color: var(--color-text);
    cursor: pointer;
  }
}

/* ---------- Footer ---------- */
.ibm-footer {
  background: var(--color-bg-dark);
  color: #fff;
  padding: var(--space-15) 0 var(--space-5);
}
.ibm-footer a { color: #fff; }
.ibm-footer a:hover { color: var(--color-cream); }
.ibm-footer__grid {
  display: grid;
  grid-template-columns: 1.5fr 1fr 1fr 1fr;
  gap: var(--space-8);
  margin-bottom: var(--space-15);
}
@media (max-width: 992px) {
  .ibm-footer__grid { grid-template-columns: 1fr 1fr; gap: var(--space-5); }
}
@media (max-width: 576px) {
  .ibm-footer__grid { grid-template-columns: 1fr; gap: var(--space-5); }
}
.ibm-footer__title {
  font-size: var(--fs-h4);
  font-weight: var(--fw-bold);
  margin-bottom: var(--space-3);
  color: #fff;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}
.ibm-footer__list { list-style: none; padding: 0; margin: 0; }
.ibm-footer__list li { margin-bottom: var(--space-2); }

/* Collapsible columns — desktop: always shown, mobile: tap to expand */
@media (max-width: 768px) {
  .ibm-footer__col {
    border-top: 1px solid rgba(255,255,255,0.1);
    padding: var(--space-3) 0;
  }
  .ibm-footer__col .ibm-footer__title {
    cursor: pointer;
    position: relative;
    padding-right: 24px;
    margin-bottom: 0;
    user-select: none;
  }
  .ibm-footer__col .ibm-footer__title::after {
    content: '+';
    position: absolute;
    right: 0;
    top: 50%;
    transform: translateY(-50%);
    font-size: 20px;
    font-weight: var(--fw-regular);
    line-height: 1;
    color: rgba(255,255,255,0.7);
  }
  .ibm-footer__col.is-open .ibm-footer__title::after { content: '−'; }
  .ibm-footer__col .ibm-footer__list { display: none; }
  .ibm-footer__col.is-open .ibm-footer__list { display: block; margin-top: var(--space-3); }
}
.ibm-footer__list a {
  font-size: var(--fs-caption);
  text-decoration: none;
}
.ibm-footer__about p {
  font-size: var(--fs-body-sm);
  color: rgba(255,255,255,0.7);
  line-height: var(--lh-body);
}
.ibm-footer__bottom {
  border-top: 1px solid rgba(255,255,255,0.1);
  padding-top: var(--space-4);
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: var(--fs-caption);
  color: rgba(255,255,255,0.6);
  flex-wrap: wrap;
  gap: var(--space-3);
}

/* ---------- Page header ---------- */
.ibm-page-header {
  background: var(--color-bg-soft);
  padding: var(--space-15) 0;
  border-bottom: 1px solid var(--color-border-subtle);
}
.ibm-page-header h1 {
  font-size: var(--fs-display);
  margin: 0 0 var(--space-2);
}
.ibm-page-header__lede {
  font-size: var(--fs-body);
  color: var(--color-text-secondary);
  max-width: 720px;
  margin: 0;
}

/* Section heading */
.ibm-section__title {
  font-size: var(--fs-h2);
  text-align: center;
  margin-bottom: var(--space-2);
}
.ibm-section__lede {
  text-align: center;
  color: var(--color-text-secondary);
  max-width: 720px;
  margin: 0 auto var(--space-8);
}