/* ============================================
   MR Commerce v3.1 — Premium Glass Navbar
   ============================================ */

.navbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: var(--navbar-height);
  z-index: var(--z-sticky);
  transition: all var(--duration-base) var(--ease-out);
}

.navbar.is-scrolled {
  background: var(--glass-bg);
  backdrop-filter: blur(var(--glass-blur)) saturate(1.4);
  -webkit-backdrop-filter: blur(var(--glass-blur)) saturate(1.4);
  border-bottom: 1px solid var(--border-subtle);
  box-shadow: 0 1px 3px rgba(0,0,0,0.02);
}

.navbar__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 100%;
  max-width: var(--container-wide);
  margin-inline: auto;
  padding-inline: var(--space-6);
}

.navbar__logo {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  font-size: var(--text-lg);
  font-weight: var(--weight-bold);
  letter-spacing: var(--tracking-tight);
  flex-shrink: 0;
}

.navbar__logo-mark {
  width: 30px;
  height: 30px;
  background: var(--gradient-primary);
  border-radius: var(--radius-lg);
  display: flex;
  align-items: center;
  justify-content: center;
  color: white;
  font-size: 10px;
  font-weight: var(--weight-extrabold);
  letter-spacing: -0.5px;
}

/* Center nav */
.navbar__nav {
  display: flex;
  align-items: center;
  gap: 2px;
  position: absolute;
  left: 50%;
  transform: translateX(-50%);
}

.navbar__link {
  padding: 8px 14px;
  font-size: 13.5px;
  font-weight: var(--weight-medium);
  color: var(--text-secondary);
  border-radius: var(--radius-lg);
  transition: all var(--duration-fast) var(--ease-out);
  position: relative;
}

.navbar__link:hover { color: var(--text-primary); background: var(--surface-1); }
.navbar__link.is-active { color: var(--text-primary); }
.navbar__link.is-active::after {
  content: '';
  position: absolute;
  bottom: 2px;
  left: 50%;
  transform: translateX(-50%);
  width: 16px;
  height: 2px;
  background: var(--color-primary);
  border-radius: 1px;
}

/* Right */
.navbar__actions {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  flex-shrink: 0;
}

.navbar__login {
  font-size: 13.5px;
  font-weight: var(--weight-medium);
  color: var(--text-secondary);
  padding: 8px 12px;
  border-radius: var(--radius-lg);
  transition: color var(--duration-fast);
}
.navbar__login:hover { color: var(--text-primary); }

.navbar__theme-btn {
  width: 34px; height: 34px;
  display: flex; align-items: center; justify-content: center;
  border-radius: var(--radius-lg);
  color: var(--text-tertiary);
  transition: all var(--duration-fast);
}
.navbar__theme-btn:hover { color: var(--text-primary); background: var(--surface-1); }
.navbar__theme-btn svg { width: 16px; height: 16px; }

.navbar__cta {
  font-size: 13px;
  font-weight: var(--weight-semibold);
  padding: 8px 18px;
  border-radius: var(--radius-full);
  background: var(--color-primary);
  color: white;
  transition: all var(--duration-fast) var(--ease-out);
  box-shadow: 0 1px 4px rgba(37,99,235,0.2);
}
.navbar__cta:hover {
  background: var(--color-primary-dark);
  box-shadow: 0 4px 16px rgba(37,99,235,0.3);
  transform: translateY(-1px);
}

/* Mobile */
.navbar__toggle {
  display: none;
  width: 34px; height: 34px;
  align-items: center; justify-content: center;
  border-radius: var(--radius-lg);
}

.navbar__toggle-bar {
  display: block; width: 16px; height: 1.5px;
  background: var(--text-primary); border-radius: 1px;
  position: relative; transition: all var(--duration-fast);
}
.navbar__toggle-bar::before, .navbar__toggle-bar::after {
  content: ''; position: absolute; width: 100%; height: 100%;
  background: inherit; border-radius: inherit; left: 0;
  transition: all var(--duration-fast);
}
.navbar__toggle-bar::before { top: -5px; }
.navbar__toggle-bar::after { top: 5px; }
.navbar__toggle.is-active .navbar__toggle-bar { background: transparent; }
.navbar__toggle.is-active .navbar__toggle-bar::before { top: 0; transform: rotate(45deg); background: var(--text-primary); }
.navbar__toggle.is-active .navbar__toggle-bar::after { top: 0; transform: rotate(-45deg); background: var(--text-primary); }

.navbar__mobile {
  display: none; position: fixed;
  top: var(--navbar-height); left: 0; right: 0; bottom: 0;
  background: var(--surface-0); padding: var(--space-8) var(--space-6);
  flex-direction: column; gap: var(--space-2); overflow-y: auto;
}
.navbar__mobile.is-open { display: flex; }
.navbar__mobile .navbar__link { font-size: var(--text-lg); padding: var(--space-4); border-radius: var(--radius-lg); }
.navbar__mobile .navbar__link:hover { background: var(--surface-1); }
.navbar__mobile-actions { margin-top: auto; padding-top: var(--space-6); display: flex; flex-direction: column; gap: var(--space-3); }

@media (max-width: 1024px) {
  .navbar__nav { display: none; }
  .navbar__login { display: none; }
  .navbar__toggle { display: flex; }
}
@media (max-width: 640px) { .navbar__cta { display: none; } }