/* Nav */
.nav {
  position: sticky;
  top: 0;
  z-index: 20;
  backdrop-filter: var(--glass-blur);
  background: var(--glass-bg);
  border-bottom: 1px solid var(--line)
}
[data-theme="dark"] .nav {
  background: rgba(7,17,31,0.92);
  border-bottom-color: rgba(255,255,255,0.14)
}
.nav-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1rem 0;
  gap: 1.5rem
}
.logo {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-weight: 950;
  letter-spacing: -.04em;
  text-decoration: none;
  color: var(--text)
}
.logo-mark {
  width: 38px;
  height: 38px;
  border-radius: var(--radius-md);
  background: linear-gradient(135deg, var(--brand), var(--brand2));
  box-shadow: var(--shadow-md)
}
.logo-text {
  font-size: 0.95rem;
  font-weight: 700;
  color: var(--text)
}
.nav-links {
  display: flex;
  gap: 1.5rem;
  font-size: 0.875rem;
  color: var(--muted)
}
.nav-links a {
  transition: color 0.2s ease;
  text-decoration: none;
  color: var(--muted)
}
.nav-links a:hover {
  color: var(--text)
}
.nav-auth {
  display: flex;
  gap: 12px;
  align-items: center
}
.nav-auth a {
  font-size: 0.875rem;
  color: var(--muted);
  transition: color 0.2s ease;
  text-decoration: none
}
.nav-auth a:hover {
  color: var(--text)
}
/* Config button */
.config-button-wrapper {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center
}
.config-button {
  width: 42px;
  height: 42px;
  border-radius: 50%;
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  backdrop-filter: var(--glass-blur);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text);
  transition: 0.2s ease;
  z-index: 10
}
.config-button:hover {
  background: rgba(255,255,255,0.9);
  transform: scale(1.05)
}
[data-theme="dark"] .config-button:hover {
  background: rgba(255,255,255,0.15)
}
.circular-menu {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%) scale(0);
  pointer-events: none;
  transition: 0.6s cubic-bezier(0.25, 0.1, 0.25, 1);
  z-index: 5
}
.circular-menu.active {
  transform: translate(-50%, -50%) scale(1);
  pointer-events: auto
}
.circular-menu-item {
  position: absolute;
  width: 38px;
  height: 38px;
  border-radius: 50%;
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  backdrop-filter: var(--glass-blur);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text);
  transition: 0.2s ease;
  opacity: 0;
  transform: scale(0)
}
.circular-menu-item:hover {
  background: rgba(255,255,255,0.9);
  transform: scale(1.1) !important
}
[data-theme="dark"] .circular-menu-item:hover {
  background: rgba(255,255,255,0.15)
}
.circular-menu.active .circular-menu-item {
  opacity: 1;
  transform: scale(1)
}
.theme-toggle {
  top: 25px;
  left: -40px
}
.lang-toggle {
  top: 45px;
  left: 0
}
.flag-icon {
  font-size: 18px
}
/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.5rem 1rem;
  border-radius: var(--radius-full);
  font-weight: 850;
  border: 1px solid var(--glass-border);
  background: var(--glass-bg);
  backdrop-filter: var(--glass-blur);
  color: var(--text);
  cursor: pointer;
  transition: 0.2s ease;
  text-decoration: none
}
.btn:hover {
  transform: translateY(-2px);
  background: rgba(255,255,255,0.13)
}
.btn-primary {
  background: linear-gradient(135deg, var(--brand), var(--brand2));
  color: #03101a;
  border: none;
  box-shadow: var(--shadow-md)
}
.btn-primary:hover {
  background: linear-gradient(135deg, #2563eb, #4f46e5)
}
.btn-secondary {
  background: rgba(141,92,255,0.12);
  border-color: rgba(141,92,255,0.24)
}
@media(max-width:900px) {
  .nav-links { display: none }
}