/* ===================================================================
   LEADTENDER — Layout
   Header, Navigation, Footer, Breadcrumbs, Page Header
   =================================================================== */

/* ===== Header ===== */

.header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 50;
  height: 72px;
  display: flex;
  align-items: center;
  background: transparent;
  transition: all 0.3s ease;
}

.header.scrolled {
  background: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.06);
  border-bottom: 1px solid var(--color-border-light);
}

/* ---- Header Inner ---- */

.header-inner {
  display: flex;
  justify-content: space-between;
  align-items: center;
  height: 100%;
  width: 100%;
  max-width: 1400px;
  margin: 0 auto;
  padding: 0 24px;
}

/* ---- Logo ---- */

.header-logo {
  display: flex;
  align-items: center;
  gap: 12px;
  text-decoration: none;
  position: relative;
}

.header-logo img {
  height: 36px;
}

.header-logo-text {
  font-weight: 800;
  font-size: 18px;
  color: var(--color-text-primary);
  letter-spacing: 0.02em;
}

.header-logo-sub {
  font-size: 10px;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--color-text-muted);
  display: block;
  margin-top: -2px;
}

/* ---- Transparent header (on dark hero) ---- */

.header-transparent .header-logo-text {
  color: #fff;
}

.header-transparent .header-logo-sub {
  color: rgba(255, 255, 255, 0.6);
}

.header-transparent.scrolled .header-logo-text {
  color: var(--color-text-primary);
}

.header-transparent.scrolled .header-logo-sub {
  color: var(--color-text-muted);
}

/* ===== Logo switching ===== */

.header-logo .logo-white,
.header-logo .logo-black {
  height: 36px;
  transition: opacity 0.4s ease;
}

/* Stack both logos — black sits behind white */
.header-logo .logo-black {
  position: absolute;
  left: 0;
  top: 50%;
  transform: translateY(-50%);
}

/* Transparent header: white visible, black hidden */
.header-transparent .logo-white { opacity: 1; }
.header-transparent .logo-black { opacity: 0; }

/* Scrolled: white hidden, black visible */
.header-transparent.scrolled .logo-white { opacity: 0; }
.header-transparent.scrolled .logo-black { opacity: 1; }

/* Non-transparent pages: only black */
.header:not(.header-transparent) .logo-white { opacity: 0; }
.header:not(.header-transparent) .logo-black { opacity: 1; }

/* ===== Navigation ===== */

.header-nav {
  display: flex;
  align-items: center;
  gap: 4px;
}

.header-nav-item {
  position: relative;
}

.header-nav-link {
  padding: 8px 16px;
  font-size: 14px;
  font-weight: 500;
  color: var(--color-text-body);
  border-radius: var(--radius-sm);
  transition: var(--transition-fast);
  display: flex;
  align-items: center;
  gap: 4px;
}

.header-nav-link:hover {
  background: #F1F5F9;
  color: var(--color-text-primary);
}

.header-nav-link.active {
  background: #F1F5F9;
  color: var(--color-text-primary);
  font-weight: 600;
}

/* Nav links on transparent header */

.header-transparent .header-nav-link {
  color: rgba(255, 255, 255, 0.85);
}

.header-transparent .header-nav-link:hover {
  background: rgba(255, 255, 255, 0.08);
  color: #fff;
}

.header-transparent .header-nav-link.active {
  background: transparent;
  color: #fff;
  font-weight: 600;
}

.header-transparent.scrolled .header-nav-link {
  color: var(--color-text-body);
}

.header-transparent.scrolled .header-nav-link:hover {
  background: #F1F5F9;
  color: var(--color-text-primary);
}

.header-transparent.scrolled .header-nav-link.active {
  background: #F1F5F9;
  color: var(--color-text-primary);
}

/* ===== Dropdown ===== */

.header-dropdown {
  position: absolute;
  top: calc(100% + 8px);
  left: 0;
  min-width: 200px;
  background: #fff;
  border: 1px solid var(--color-border-light);
  border-radius: var(--radius-md);
  padding: 8px;
  box-shadow: 0 10px 40px rgba(0, 0, 0, 0.1);
  opacity: 0;
  visibility: hidden;
  transform: translateY(-8px);
  transition: var(--transition-fast);
  z-index: 60;
}

.header-nav-item:hover .header-dropdown {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.header-dropdown a {
  display: block;
  padding: 10px 14px;
  font-size: 14px;
  color: var(--color-text-body);
  border-radius: var(--radius-sm);
  transition: var(--transition-fast);
}

.header-dropdown a:hover {
  background: #F1F5F9;
  color: var(--color-primary);
}

/* ===== Header Right Side ===== */

.header-right {
  display: flex;
  align-items: center;
  gap: 16px;
}

.header-email {
  font-size: 14px;
  color: var(--color-text-body);
  display: flex;
  align-items: center;
  gap: 6px;
}

.header-transparent .header-email {
  color: rgba(255, 255, 255, 0.7);
}

.header-transparent.scrolled .header-email {
  color: var(--color-text-body);
}

/* .header-cta uses .btn .btn-primary .btn-sm from components */

/* ===== Burger (mobile only) ===== */

.header-burger {
  display: none;
}

.header-burger span {
  height: 2px;
  background: var(--color-text-primary);
  border-radius: 2px;
  transition: var(--transition-base);
}

.header-transparent .header-burger span {
  background: #fff;
}

.header-transparent.scrolled .header-burger span {
  background: var(--color-text-primary);
}

.header-burger.active {
  z-index: 101;
  position: relative;
}
.header-burger.active span {
  background: var(--color-text-primary);
}
.header-burger.active span:nth-child(1) {
  transform: rotate(45deg) translateY(7px);
}

.header-burger.active span:nth-child(2) {
  opacity: 0;
}

.header-burger.active span:nth-child(3) {
  transform: rotate(-45deg) translateY(-7px);
}

/* ===== Mobile Menu ===== */

.mobile-menu-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.4);
  backdrop-filter: blur(4px);
  -webkit-backdrop-filter: blur(4px);
  z-index: 99;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.3s ease;
}

.mobile-menu-overlay.active {
  opacity: 1;
  pointer-events: auto;
}

.mobile-menu {
  position: fixed;
  top: 0;
  right: 0;
  bottom: 0;
  width: 300px;
  max-width: 80%;
  background: #fff;
  z-index: 100;
  display: flex;
  flex-direction: column;
  padding: 24px;
  transform: translateX(100%);
  transition: transform 0.4s cubic-bezier(0.25, 0.1, 0.25, 1);
  overflow-y: auto;
  box-shadow: -4px 0 24px rgba(0, 0, 0, 0.1);
}

.mobile-menu.active {
  transform: translateX(0);
}

.mobile-menu-close {
  align-self: flex-end;
  width: 36px;
  height: 36px;
  border: none;
  background: #F1F5F9;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  margin-bottom: 16px;
  transition: background 0.2s;
}

.mobile-menu-close:hover {
  background: #E2E8F0;
}

.mobile-menu-close svg {
  color: var(--color-text-primary);
}

.mobile-menu-link {
  font-size: 20px;
  font-weight: 600;
  color: var(--color-text-primary);
  padding: 16px 0;
  border-bottom: 1px solid var(--color-border-light);
  display: block;
}

.mobile-menu-link:hover {
  color: var(--color-primary);
}

.mobile-menu-sub {
  padding-left: 20px;
}

.mobile-menu-sub a {
  font-size: 16px;
  font-weight: 400;
  padding: 12px 0;
  color: var(--color-text-body);
  display: block;
}

.mobile-menu-sub a:hover {
  color: var(--color-primary);
}

.mobile-menu-cta {
  margin-top: auto;
  padding-top: 24px;
}

.mobile-menu-cta .btn {
  width: auto;
}

/* ===== Footer ===== */

.footer {
  background: #111;
  color: var(--color-text-white-muted);
  padding: 64px 0 32px;
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.5fr 1fr 1fr 1fr;
  gap: 48px;
}

.footer-col h4 {
  color: #fff;
  font-size: 16px;
  font-weight: 700;
  margin-bottom: 20px;
}

.footer-col p {
  font-size: 14px;
  line-height: 2;
  color: var(--color-text-white-muted);
}

.footer-col p br {
  display: block;
  content: '';
  margin-top: 10px;
}

.footer-links {
  list-style: none;
  padding: 0;
}

.footer-links li {
  margin-bottom: 0;
  padding: 5px 0;
  line-height: 1.1;
}

.footer-links a {
  font-size: 14px;
  color: var(--color-text-white-muted);
  transition: var(--transition-fast);
}

.footer-links a:hover {
  color: #fff;
}

.footer-logo {
  margin-bottom: 20px;
}

.footer-logo img {
  height: 23px;
}

.footer-contacts li {
  display: flex;
  align-items: flex-start;
  gap: 10px;
}

.footer-contact-icon {
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-primary);
  flex-shrink: 0;
  margin-top: 2px;
}

.footer-contacts a,
.footer-contacts span:not(.footer-contact-icon) {
  font-size: 14px;
  color: var(--color-text-white-muted);
  transition: var(--transition-fast);
}

.footer-contacts a:hover {
  color: #fff;
}

.footer-bottom {
  margin-top: 48px;
  padding-top: 24px;
  border-top: 1px solid rgba(255, 255, 255, 0.08);
  text-align: center;
  font-size: 13px;
  color: rgba(255, 255, 255, 0.4);
}

/* ===== Breadcrumbs ===== */

.breadcrumbs {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 16px 0;
  font-size: 14px;
  color: var(--color-text-muted);
  flex-wrap: wrap;
}

.breadcrumbs a {
  color: var(--color-text-muted);
  transition: var(--transition-fast);
}

.breadcrumbs a:hover {
  color: var(--color-primary);
}

.breadcrumbs .separator {
  color: var(--color-border);
  user-select: none;
}

.breadcrumbs .current {
  color: var(--color-text-primary);
  font-weight: 500;
}

/* ===== Page Header (inner pages) ===== */

.page-header {
  padding: 120px 0 48px;
  text-align: center;
}

.page-header h1 {
  margin-bottom: 12px;
}

.page-header p {
  font-size: 18px;
  color: var(--color-text-body);
  max-width: 600px;
  margin: 0 auto;
}

/* ===================================================================
   Responsive: Desktop (>1024px)
   =================================================================== */

@media (min-width: 1025px) {
  .mobile-menu {
    display: none;
  }
}

/* ===================================================================
   Responsive: Tablet (max-width: 1024px)
   =================================================================== */

@media (max-width: 1024px) {
  .header-nav,
  .header-email,
  .header-cta {
    display: none;
  }

  .header-burger {
    display: flex;
    flex-direction: column;
    gap: 5px;
    width: 28px;
    cursor: pointer;
    padding: 4px 0;
  }

  .footer-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 32px;
  }
}

/* ===================================================================
   Responsive: Mobile (max-width: 640px)
   =================================================================== */

@media (max-width: 768px) {
  .header-right .btn {
    display: none;
  }
  .header-logo img,
  .header-logo .logo-white,
  .header-logo .logo-black {
    height: 26px;
  }
}

@media (max-width: 640px) {
  .header-inner {
    padding: 0 16px;
  }

  .footer {
    padding: 48px 0 24px;
  }

  .footer-grid {
    grid-template-columns: 1fr 1fr;
    gap: 24px 20px;
  }
  .footer-grid > div { font-size: 13px; }
  .footer-logo img { height: 24px; }
  .footer-col h4 { font-size: 14px; margin-bottom: 10px; }
  .footer-col p { font-size: 12px; line-height: 1.6; }
  .footer-links li { padding: 3px 0; }
  .footer-links a { font-size: 13px; }

  .page-header {
    padding: 100px 0 32px;
  }

  .page-header p {
    font-size: 16px;
  }
}