/* ============================================================
   RealtyDataLabs — Header Styles
   ============================================================ */

/* ----- Site Header ----- */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: var(--header-h);
  z-index: 1000;
  background: transparent;
  transition: background 0.3s ease, backdrop-filter 0.3s ease;
}

.site-header.scrolled {
  background: rgba(10, 10, 15, 0.9);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--border-color);
}

/* ----- Header Inner ----- */
.header-inner {
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 24px;
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
}

/* ----- Logo ----- */
.header-logo {
  display: flex;
  align-items: center;
  gap: 10px;
  text-decoration: none;
  flex-shrink: 0;
}

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

.header-logo .wordmark {
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--text-primary);
  letter-spacing: -0.01em;
}

.header-logo .wordmark span {
  color: var(--accent-teal);
}

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

.header-nav a {
  position: relative;
  font-size: 0.8rem;
  font-weight: 500;
  color: var(--text-secondary);
  padding: 7px 11px;
  border-radius: var(--radius-full);
  transition: var(--transition);
  white-space: nowrap;
  text-decoration: none;
}

.header-nav a::after {
  content: '';
  position: absolute;
  bottom: -2px;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--accent-teal);
  border-radius: 2px;
  transition: width 0.25s ease;
}

.header-nav a:hover {
  color: var(--text-primary);
  background: rgba(255, 255, 255, 0.06);
}

.header-nav a:hover::after {
  width: 100%;
}

.header-nav a.active {
  color: var(--accent-teal);
  background: rgba(0, 212, 170, 0.08);
}

/* ----- CTA Button ----- */
.header-cta {
  background: var(--gradient);
  color: #ffffff;
  padding: 9px 20px;
  border-radius: var(--radius-full);
  font-size: 0.85rem;
  font-weight: 600;
  text-decoration: none;
  transition: var(--transition);
  white-space: nowrap;
  flex-shrink: 0;
}

.header-cta:hover {
  opacity: 0.9;
  transform: translateY(-1px);
  color: #ffffff;
}

/* ----- Hamburger ----- */
.header-hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  cursor: pointer;
  padding: 8px;
  background: none;
  border: none;
}

.header-hamburger span {
  display: block;
  width: 22px;
  height: 2px;
  background: var(--text-primary);
  border-radius: 2px;
  transition: var(--transition);
}

.header-hamburger.open span:nth-child(1) {
  transform: rotate(45deg) translate(5px, 5px);
}

.header-hamburger.open span:nth-child(2) {
  opacity: 0;
}

.header-hamburger.open span:nth-child(3) {
  transform: rotate(-45deg) translate(5px, -5px);
}

/* ----- Mobile Menu ----- */
.mobile-menu {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100vh;
  background: rgba(10, 10, 15, 0.97);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  z-index: 999;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 8px;
  opacity: 0;
  pointer-events: none;
  transform: translateY(-10px);
  transition: opacity 0.3s ease, transform 0.3s ease;
}

.mobile-menu.open {
  opacity: 1;
  pointer-events: all;
  transform: translateY(0);
}

.mobile-menu a {
  font-size: 1.5rem;
  font-weight: 600;
  color: var(--text-secondary);
  padding: 14px 32px;
  border-radius: var(--radius-md);
  transition: var(--transition);
  text-decoration: none;
  text-align: center;
}

.mobile-menu a:hover {
  color: var(--accent-teal);
}

.mobile-menu .mobile-cta {
  margin-top: 24px;
  padding: 14px 48px;
  font-size: 1rem;
  background: var(--gradient);
  color: #ffffff;
  border-radius: var(--radius-full);
  text-decoration: none;
  font-weight: 600;
  transition: var(--transition);
}

.mobile-menu .mobile-cta:hover {
  opacity: 0.9;
  color: #ffffff;
}

.mobile-menu-close {
  position: absolute;
  top: 20px;
  right: 24px;
  font-size: 1.5rem;
  background: none;
  border: none;
  color: var(--text-secondary);
  cursor: pointer;
  padding: 8px;
  transition: var(--transition);
}

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

/* ----- Responsive: 768px ----- */
@media (max-width: 768px) {
  .header-nav {
    display: none;
  }

  .header-cta {
    display: none;
  }

  .header-hamburger {
    display: flex;
  }
}

/* ----- Desktop: full-width header (≥ 769px) ----- */
@media (min-width: 769px) {
  .site-header {
    max-width: 100%;
    min-height: 70px;
  }

  .header-inner {
    max-width: 100%;
    width: 100%;
    padding: 0 2rem;
    display: flex;
    align-items: center;
    justify-content: space-between;
  }

  .header-logo img {
    height: 48px;
    width: auto;
  }

  .header-nav a {
    font-size: 0.95rem;
    padding: 0 0.75rem;
    white-space: nowrap;
  }
}

/* ----- Wide desktop (≥ 1200px) ----- */
@media (min-width: 1200px) {
  .header-nav a {
    font-size: 1rem;
    padding: 0 1rem;
  }
}