/* RAMS TARGET GYM - Clean White Navbar Stylesheet (GPU Accelerated) */

.header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: calc(var(--nav-height) + env(safe-area-inset-top, 0px));
  padding-top: env(safe-area-inset-top, 0px);
  z-index: 1000;
  transition: background-color var(--transition-smooth), border-color var(--transition-smooth), box-shadow var(--transition-smooth);
  background-color: var(--glass-bg);
  backdrop-filter: var(--glass-blur);
  -webkit-backdrop-filter: var(--glass-blur);
  border-bottom: 1px solid var(--border-light);
  transform: translate3d(0, 0, 0);
}

.header.scrolled {
  box-shadow: 0 4px 20px rgba(15, 23, 42, 0.06);
  border-bottom-color: var(--border-light);
  background-color: rgba(255, 255, 255, 0.98);
}

.nav-container {
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

/* Brand Logo with Official Target Gym Image */
.brand-logo {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  font-family: 'Oswald', sans-serif;
  font-size: 1.55rem;
  font-weight: 700;
  letter-spacing: 0.04em;
  color: var(--text-main);
  text-transform: uppercase;
  min-height: 44px;
}

.logo-img-wrapper {
  width: 44px;
  height: 44px;
  border-radius: 50%;
  overflow: hidden;
  border: none;
  box-shadow: none;
  background: transparent;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.logo-img-wrapper img {
  width: 100%;
  height: 100%;
  object-fit: contain;
  mix-blend-mode: multiply;
}

.brand-logo span.red {
  color: var(--accent-red);
}

/* Desktop Links */
.nav-menu {
  display: flex;
  align-items: center;
  gap: 2.2rem;
}

.nav-link {
  font-size: 0.9rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--text-secondary);
  position: relative;
  padding: 0.5rem 0;
  display: inline-flex;
  align-items: center;
  min-height: 44px;
  transition: color var(--transition-fast);
}

.nav-link::after {
  content: '';
  position: absolute;
  bottom: 6px;
  left: 50%;
  transform: translateX(-50%);
  width: 0%;
  height: 2.5px;
  background-color: var(--accent-red);
  transition: width var(--transition-fast);
  border-radius: 2px;
}

.nav-link:hover,
.nav-link.active {
  color: var(--accent-red);
}

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

.nav-cta {
  display: flex;
  align-items: center;
  gap: 1rem;
}

/* Hamburger Mobile Toggle */
.hamburger {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 6px;
  width: 44px;
  height: 44px;
  padding: 8px;
  background: transparent;
  border: none;
  cursor: pointer;
  z-index: 1001;
  border-radius: 8px;
}

.hamburger span {
  width: 100%;
  height: 2.5px;
  background-color: var(--text-main);
  border-radius: 2px;
  transition: transform var(--transition-fast), opacity var(--transition-fast), background-color var(--transition-fast);
}

.hamburger.active span:nth-child(1) {
  transform: translateY(8.5px) rotate(45deg);
  background-color: var(--accent-red);
}
.hamburger.active span:nth-child(2) {
  opacity: 0;
}
.hamburger.active span:nth-child(3) {
  transform: translateY(-8.5px) rotate(-45deg);
  background-color: var(--accent-red);
}

/* Mobile Navigation Overlay & Drawer (GPU Accelerated) */
@media (max-width: 991px) {
  .nav-menu {
    position: fixed;
    top: 0;
    right: 0;
    width: 82%;
    max-width: 360px;
    height: 100vh;
    background-color: #ffffff;
    border-left: 1px solid var(--border-light);
    flex-direction: column;
    align-items: flex-start;
    justify-content: center;
    padding: calc(3rem + env(safe-area-inset-top, 0px)) 2rem 3rem 2rem;
    gap: 1.5rem;
    transform: translate3d(100%, 0, 0);
    transition: transform var(--transition-smooth);
    box-shadow: -10px 0 30px rgba(0, 0, 0, 0.1);
    z-index: 999;
    will-change: transform;
  }

  .nav-menu.active {
    transform: translate3d(0, 0, 0);
  }

  .nav-link {
    font-size: 1.2rem;
    width: 100%;
  }

  .hamburger {
    display: flex;
  }

  .nav-cta-desktop {
    display: none;
  }
}