/* =========================================================
   THE GROOT OOTY — Header & Mobile Navigation
   ========================================================= */

#site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  height: var(--nav-height);
  display: flex;
  align-items: center;
  transition: background-color var(--dur-base) var(--ease-snappy),
              box-shadow var(--dur-base) var(--ease-snappy),
              border-color var(--dur-base) var(--ease-snappy);
  background: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid rgba(0, 0, 0, 0.08);
}

#site-header.scrolled {
  background: rgba(255, 255, 255, 1);
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.05);
  border-bottom-color: rgba(0, 0, 0, 0.12);
}

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

/* Logo */
.site-logo {
  display: flex;
  flex-direction: column;
  text-decoration: none;
  line-height: 1.1;
}

.logo-name {
  font-family: var(--font-display);
  font-size: 1.45rem;
  font-weight: 700;
  letter-spacing: -0.01em;
  color: var(--text-primary);
}

.logo-location {
  font-family: var(--font-body);
  font-size: 0.68rem;
  font-weight: 600;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--color-mantis);
  margin-top: 2px;
}

/* Desktop Navigation */
.desktop-nav {
  display: flex;
  align-items: center;
  gap: clamp(1.25rem, 2.5vw, 2.25rem);
}

.nav-link {
  font-size: var(--text-sm);
  font-weight: 500;
  color: var(--text-muted);
  text-decoration: none;
  position: relative;
  padding: 6px 0;
  transition: color var(--dur-fast) ease;
}

.nav-link::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0;
  height: 2px;
  background-color: var(--color-mantis);
  transition: width var(--dur-fast) var(--ease-snappy);
}

.nav-link:hover,
.nav-link.active {
  color: var(--text-primary);
}

.nav-link:hover::after,
.nav-link.active::after {
  width: 100%;
}

/* Header Actions */
.header-actions {
  display: flex;
  align-items: center;
  gap: var(--space-3);
}

/* Hamburger */
.hamburger {
  display: none;
  flex-direction: column;
  justify-content: space-between;
  width: 28px;
  height: 20px;
  background: transparent;
  border: none;
  cursor: pointer;
  padding: 0;
  z-index: 1001;
}

.hamburger-line {
  width: 100%;
  height: 2px;
  background-color: var(--text-primary);
  border-radius: 2px;
  transition: all 0.3s ease;
}

.hamburger.open .hamburger-line:nth-child(1) {
  transform: translateY(9px) rotate(45deg);
}

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

.hamburger.open .hamburger-line:nth-child(3) {
  transform: translateY(-9px) rotate(-45deg);
}

/* Mobile Menu Drawer */
.mobile-menu {
  position: fixed;
  top: 0;
  right: -100%;
  width: 100%;
  max-width: 400px;
  height: 100vh;
  height: 100dvh;
  background: var(--color-obsidian);
  z-index: 999;
  display: flex;
  flex-direction: column;
  padding: calc(var(--nav-height) + 1.5rem) 2rem 2rem;
  transition: right 0.4s var(--ease-snappy);
  box-shadow: -10px 0 30px rgba(0, 0, 0, 0.5);
  overflow-y: auto;
}

.mobile-menu.open {
  right: 0;
}

.mobile-menu-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 2rem;
  padding-bottom: 1rem;
  border-bottom: 1px solid rgba(255, 255, 255, 0.10);
}

.mobile-menu-nav {
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
  margin-bottom: 2.5rem;
}

.mobile-nav-link {
  font-family: var(--font-display);
  font-size: 1.5rem;
  font-weight: 600;
  color: var(--card-text);
  text-decoration: none;
  display: flex;
  align-items: center;
  justify-content: space-between;
  transition: color 0.2s ease, transform 0.2s ease;
}

.mobile-nav-link .arrow {
  color: var(--card-text);
  font-size: 1.2rem;
  transition: transform 0.2s ease;
}

.mobile-nav-link:hover {
  color: var(--card-text-muted);
  transform: translateX(4px);
}

.mobile-nav-link:hover .arrow {
  transform: translateX(4px);
}

.mobile-menu-actions {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
  margin-top: auto;
  padding-top: 1.5rem;
  border-top: 1px solid rgba(255, 255, 255, 0.10);
}

.mobile-menu-footer {
  display: flex;
  justify-content: space-between;
  margin-top: 1.5rem;
  font-size: 0.8rem;
}

.mobile-menu-contact-item {
  color: rgba(250, 247, 242, 0.75);
  display: flex;
  align-items: center;
  gap: 6px;
  text-decoration: none;
}

.mobile-menu-contact-item:hover {
  color: var(--color-cream);
}

/* Responsive */
@media (max-width: 900px) {
  .desktop-nav { display: none; }
  .header-cta { display: none; }
  .hamburger { display: flex; }
}