/* ==========================================================================
   TECHSPEAK — HEADER v2
   White background. Navy text. Blue CTA. Spacious and clean.
   ========================================================================== */

/* --------------------------------------------------------------------------
   SKIP LINK
   -------------------------------------------------------------------------- */
.ts-skip-link {
  position: absolute;
  top: -100%;
  left: var(--space-4);
  background: var(--color-blue);
  color: #fff;
  padding: var(--space-2) var(--space-4);
  border-radius: 0 0 var(--radius-md) var(--radius-md);
  font-size: var(--text-sm);
  font-weight: var(--weight-semibold);
  z-index: 9999;
  transition: top var(--transition-fast);
}
.ts-skip-link:focus { top: 0; }

/* --------------------------------------------------------------------------
   TOP BAR
   -------------------------------------------------------------------------- */
.ts-topbar {
  background-color: var(--color-navy);
  border-bottom: 1px solid var(--color-navy-light);
}

.ts-topbar__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 36px;
  gap: var(--space-4);
}

.ts-topbar__item {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  font-size: var(--text-xs);
  color: var(--color-navy-muted);
}

.ts-topbar__item svg { flex-shrink: 0; }

.ts-topbar__links {
  display: flex;
  align-items: center;
  gap: var(--space-2);
}

.ts-topbar__flag {
  font-size: var(--text-xs);
  color: var(--color-navy-muted);
}

.ts-topbar__divider {
  color: var(--color-navy-border);
  font-size: var(--text-xs);
}

/* --------------------------------------------------------------------------
   MAIN HEADER
   -------------------------------------------------------------------------- */
.ts-header {
  position: sticky;
  top: 0;
  left: 0;
  right: 0;
  z-index: var(--z-sticky);
  background-color: #ffffff;
  border-bottom: 1px solid var(--color-border);
  transition: box-shadow var(--transition-base);
}

.ts-header.is-scrolled {
  box-shadow: 0 2px 20px rgba(0,0,0,0.08);
}

.ts-header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-8);
  height: 76px;
}

/* --------------------------------------------------------------------------
   LOGO
   -------------------------------------------------------------------------- */
.ts-header__logo { flex-shrink: 0; }

/* Outer link wrapping logo image + text block */
.ts-header__logo-wrap {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  text-decoration: none;
}

/* Logo image */
.ts-header__logo-img {
  height: 40px;
  width: auto;
  display: block;
  flex-shrink: 0;
}

/* Fallback letter mark when no logo uploaded */
.ts-header__logo-mark {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  background-color: var(--color-blue);
  color: #fff;
  font-size: var(--text-lg);
  font-weight: var(--weight-extrabold);
  border-radius: var(--radius-md);
  flex-shrink: 0;
  font-style: normal;
}

/* Text column next to logo */
.ts-header__logo-text-wrap {
  display: flex;
  flex-direction: column;
  justify-content: center;
  gap: 1px;
}

/* Site name */
.ts-header__logo-name {
  font-size: var(--text-xl);
  font-weight: var(--weight-extrabold);
  color: var(--color-navy);
  letter-spacing: var(--tracking-tight);
  line-height: 1.1;
  white-space: nowrap;
  transition: color var(--transition-fast);
}

.ts-header__logo-wrap:hover .ts-header__logo-name {
  color: var(--color-blue);
}

/* Tagline under site name */
.ts-header__logo-tagline {
  font-size: var(--text-xs);
  font-weight: var(--weight-medium);
  color: var(--color-text-subtle);
  letter-spacing: 0.01em;
  line-height: 1;
  white-space: nowrap;
}

/* Backwards compat — old text-only logo */
.ts-header__logo-text {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  font-size: var(--text-2xl);
  font-weight: var(--weight-extrabold);
  color: var(--color-navy);
  letter-spacing: var(--tracking-tight);
  text-decoration: none;
}
.ts-header__logo-text:hover { color: var(--color-blue); }

.ts-header__logo img {
  height: 44px;
  width: auto;
}

/* --------------------------------------------------------------------------
   PRIMARY NAV
   -------------------------------------------------------------------------- */
.ts-nav {
  flex: 1;
  display: flex;
  justify-content: center;
}

.ts-nav__list {
  display: flex;
  align-items: center;
  gap: var(--space-1);
  list-style: none;
}

.ts-nav__list li a {
  display: block;
  padding: var(--space-2) var(--space-4);
  font-size: var(--text-sm);
  font-weight: var(--weight-medium);
  color: var(--color-text-muted);
  border-radius: var(--radius-md);
  transition: color var(--transition-fast), background-color var(--transition-fast);
  white-space: nowrap;
  letter-spacing: 0.01em;
}

.ts-nav__list li a:hover,
.ts-nav__list li.current-menu-item > a,
.ts-nav__list li.current-page-ancestor > a {
  color: var(--color-navy);
  background-color: var(--color-bg-soft);
}

/* --------------------------------------------------------------------------
   DROPDOWN MENU
   -------------------------------------------------------------------------- */

.ts-nav__list li { position: relative; }

.ts-nav__list .sub-menu {
  visibility: hidden;
  opacity: 0;
  pointer-events: none;
  position: absolute;
  top: calc(100% + 8px);
  left: 50%;
  transform: translateX(-50%) translateY(-6px);
  background: #ffffff;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-xl);
  min-width: 220px;
  padding: var(--space-2);
  z-index: var(--z-dropdown);
  box-shadow: var(--shadow-lg);
  transition: opacity var(--transition-fast), transform var(--transition-fast), visibility var(--transition-fast);
  list-style: none;
}

.ts-nav__list .sub-menu::before {
  content: '';
  position: absolute;
  top: -6px;
  left: 50%;
  transform: translateX(-50%) rotate(45deg);
  width: 12px;
  height: 12px;
  background: #ffffff;
  border-left: 1px solid var(--color-border);
  border-top: 1px solid var(--color-border);
}

.ts-nav__list li:hover > .sub-menu,
.ts-nav__list li:focus-within > .sub-menu {
  visibility: visible;
  opacity: 1;
  pointer-events: auto;
  transform: translateX(-50%) translateY(0);
}

.ts-nav__list .sub-menu li a {
  display: flex;
  align-items: center;
  padding: var(--space-2) var(--space-3);
  font-size: var(--text-sm);
  font-weight: var(--weight-medium);
  color: var(--color-text-muted);
  border-radius: var(--radius-md);
  white-space: nowrap;
  width: 100%;
}

.ts-nav__list .sub-menu li a:hover {
  color: var(--color-blue);
  background-color: var(--color-blue-light);
}

/* Chevron on parent item that has children */
.ts-nav__list li:has(> .sub-menu) > a {
  display: flex;
  align-items: center;
  gap: var(--space-1);
}

.ts-nav__list li:has(> .sub-menu) > a::after {
  content: '';
  display: inline-block;
  width: 14px;
  height: 14px;
  background-image: url("data:image/svg+xml,%3Csvg width='14' height='14' viewBox='0 0 24 24' fill='none' xmlns='http://www.w3.org/2000/svg'%3E%3Cpath d='M6 9l6 6 6-6' stroke='%2394A3B8' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: center;
  transition: transform var(--transition-fast);
  flex-shrink: 0;
}

.ts-nav__list li:has(> .sub-menu):hover > a::after {
  transform: rotate(180deg);
}

/* Mobile — inline dropdown */
@media (max-width: 1024px) {
  .ts-nav__list .sub-menu {
    position: static;
    visibility: visible;
    opacity: 1;
    pointer-events: auto;
    transform: none;
    box-shadow: none;
    border: none;
    border-left: 2px solid var(--color-border);
    border-radius: 0;
    padding: var(--space-1) 0 var(--space-1) var(--space-4);
    margin: var(--space-1) 0 var(--space-1) var(--space-4);
    min-width: unset;
    background: transparent;
    display: none;
  }

  .ts-nav__list .sub-menu::before { display: none; }
  .ts-nav__list li.is-open > .sub-menu { display: block; }

  .ts-nav__list li:has(> .sub-menu) > a::after {
    margin-left: auto;
  }
}

/* --------------------------------------------------------------------------
   HEADER ACTIONS
   -------------------------------------------------------------------------- */
.ts-header__actions {
  display: flex;
  align-items: center;
  gap: var(--space-4);
  flex-shrink: 0;
}

.ts-header__link {
  font-size: var(--text-sm);
  font-weight: var(--weight-medium);
  color: var(--color-text-muted);
  transition: color var(--transition-fast);
}

.ts-header__link:hover { color: var(--color-navy); }

/* --------------------------------------------------------------------------
   BUTTON SYSTEM
   -------------------------------------------------------------------------- */
.ts-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  font-family: var(--font-sans);
  font-weight: var(--weight-semibold);
  line-height: 1;
  border-radius: var(--radius-lg);
  cursor: pointer;
  transition: background-color var(--transition-fast), color var(--transition-fast), box-shadow var(--transition-fast), transform var(--transition-fast);
  white-space: nowrap;
  text-decoration: none;
  border: 2px solid transparent;
}

.ts-btn:active { transform: scale(0.98); }

.ts-btn--sm  { font-size: var(--text-sm);  padding: 0.5rem 1rem; }
.ts-btn--md  { font-size: var(--text-sm);  padding: 0.65rem 1.25rem; }
.ts-btn--lg  { font-size: var(--text-base); padding: 0.875rem 1.75rem; }
.ts-btn--xl  { font-size: var(--text-lg);  padding: 1rem 2.25rem; }

.ts-btn--primary {
  background-color: var(--color-blue);
  color: #fff;
  border-color: var(--color-blue);
  box-shadow: var(--shadow-blue);
}
.ts-btn--primary:hover {
  background-color: var(--color-blue-hover);
  border-color: var(--color-blue-hover);
  color: #fff;
  box-shadow: 0 6px 24px rgba(37,99,235,0.35);
}

.ts-btn--secondary {
  background-color: transparent;
  color: var(--color-navy);
  border-color: var(--color-border-dark);
}
.ts-btn--secondary:hover {
  background-color: var(--color-bg-soft);
  border-color: var(--color-navy);
}

.ts-btn--ghost {
  background: transparent;
  color: var(--color-blue);
  border-color: transparent;
  padding-left: 0;
  padding-right: 0;
}
.ts-btn--ghost:hover { color: var(--color-blue-hover); }

.ts-btn--white {
  background-color: #fff;
  color: var(--color-navy);
  border-color: #fff;
}
.ts-btn--white:hover {
  background-color: var(--color-bg-soft);
  color: var(--color-blue);
}

/* --------------------------------------------------------------------------
   CONTAINER
   -------------------------------------------------------------------------- */
.ts-container {
  width: 100%;
  max-width: var(--container-max);
  margin-left: auto;
  margin-right: auto;
  padding-left: var(--container-px);
  padding-right: var(--container-px);
}
.ts-container--wide   { max-width: var(--container-wide); }
.ts-container--narrow { max-width: var(--container-narrow); }

/* --------------------------------------------------------------------------
   MOBILE TOGGLE
   -------------------------------------------------------------------------- */
.ts-nav-toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 40px;
  height: 40px;
  padding: var(--space-2);
  border-radius: var(--radius-md);
  background: transparent;
  border: 1.5px solid var(--color-border-dark);
  cursor: pointer;
  transition: background-color var(--transition-fast);
  flex-shrink: 0;
}
.ts-nav-toggle:hover { background-color: var(--color-bg-soft); }

.ts-nav-toggle__bar {
  display: block;
  width: 100%;
  height: 2px;
  background-color: var(--color-navy);
  border-radius: 2px;
  transition: transform var(--transition-base), opacity var(--transition-base);
  transform-origin: center;
}

.ts-nav-toggle.is-open .ts-nav-toggle__bar:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.ts-nav-toggle.is-open .ts-nav-toggle__bar:nth-child(2) { opacity: 0; transform: scaleX(0); }
.ts-nav-toggle.is-open .ts-nav-toggle__bar:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* --------------------------------------------------------------------------
   OVERLAY
   -------------------------------------------------------------------------- */
.ts-nav-overlay {
  display: none;
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.4);
  z-index: calc(var(--z-sticky) - 1);
  opacity: 0;
  transition: opacity var(--transition-base);
}
.ts-nav-overlay.is-visible { display: block; opacity: 1; }

/* --------------------------------------------------------------------------
   RESPONSIVE HEADER
   -------------------------------------------------------------------------- */
@media (max-width: 1024px) {
  .ts-nav-toggle { display: flex; }
  .ts-header__actions { display: none; }
  .ts-topbar__links { display: none; }

  .ts-nav {
    position: fixed;
    top: 0;
    right: -100%;
    width: min(340px, 88vw);
    height: 100vh;
    height: 100dvh;
    background-color: #fff;
    border-left: 1px solid var(--color-border);
    padding: calc(76px + var(--space-6)) var(--space-6) var(--space-8);
    overflow-y: auto;
    z-index: var(--z-sticky);
    transition: right var(--transition-base);
    justify-content: flex-start;
    box-shadow: var(--shadow-lg);
  }

  .ts-nav.is-open { right: 0; }

  .ts-nav__list {
    flex-direction: column;
    align-items: stretch;
    gap: var(--space-1);
    width: 100%;
  }

  .ts-nav__list li a {
    font-size: var(--text-base);
    padding: var(--space-3) var(--space-4);
    color: var(--color-text);
    border-radius: var(--radius-lg);
  }

  /* Mobile CTA inside nav */
  .ts-nav::after {
    content: '';
    display: block;
    height: 1px;
    background: var(--color-border);
    margin: var(--space-4) 0;
  }
}

@media (max-width: 640px) {
  .ts-header__inner { height: 64px; }
  .ts-topbar { display: none; }
  .ts-header__logo-text { font-size: var(--text-xl); }
}