.nav-container {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 10000;
  background: var(--nav-bg);
  box-shadow: 0 2px 12px rgba(0, 0, 0, 0.15);
  border-bottom: 1px solid var(--border);
}

.nav-bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 2rem;
  height: var(--nav-height);
  max-width: var(--max-width);
  margin: 0 auto;
}

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

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

.nav-logo {
  width: 52px;
  height: 52px;
  border-radius: 50%;
  border: 2px solid var(--accent);
  box-shadow: 0 0 6px var(--accent-glow);
  object-fit: cover;
  transition: var(--transition);
}

.nav-logo:hover {
  transform: scale(1.05);
  box-shadow: 0 0 8px var(--accent-glow);
}

input[type="password"]::-ms-reveal,
input[type="password"]::-ms-clear {
  display: none;
}

.btn-primary {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 12px 24px;
  background: linear-gradient(135deg, var(--accent), #e6b800);
  color: var(--primary);
  font-weight: 700;
  font-size: 1rem;
  border: none;
  border-radius: var(--radius);
  cursor: pointer;
  transition: none;
  box-shadow: 0 2px 6px rgba(0, 0, 0, 0.12);
}

.btn-primary:hover {
  background: linear-gradient(135deg, var(--accent-hover), var(--accent));
  opacity: 0.95;
}

.auth-shell {
  width: 100%;
  max-width: 480px;
  margin: 0 auto;
  padding: calc(var(--nav-height) + 60px) 1.5rem 2rem;
}

.auth-card,
.login-panel {
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 2.5rem;
  box-shadow: var(--shadow-lg);
}

.auth-card h2,
.login-panel h2 {
  font-size: 1.6rem;
  color: var(--accent);
  margin-bottom: 0.5rem;
}

.auth-card p,
.login-panel p {
  color: var(--text-muted);
  margin-bottom: 1.5rem;
  font-size: 0.95rem;
}

.auth-card input,
.login-panel input,
.auth-card select,
.login-panel select {
  width: 100%;
  padding: 14px 16px;
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  color: var(--text);
  font-size: 1rem;
  font-family: inherit;
  transition: var(--transition);
}

.auth-card input:focus,
.login-panel input:focus,
.auth-card select:focus,
.login-panel select:focus {
  outline: none;
  border-color: var(--accent);
  box-shadow: 0 0 0 3px var(--accent-soft);
}

.auth-card label,
.login-panel label {
  display: block;
  font-weight: 600;
  color: var(--accent);
  margin-bottom: 6px;
  font-size: 0.95rem;
}

.auth-card .form-group,
.login-panel .form-group,
#login-form .form-group {
  margin-bottom: 1.25rem;
}

.auth-card .form-group .password-hint,
.login-panel .form-group .password-hint {
  font-size: 0.75rem;
  color: var(--text-muted);
  margin-top: 4px;
}

#login-form {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

#login-form button,
#register-form button[type="submit"],
.auth-card button[type="submit"],
.login-panel button[type="submit"] {
  margin-top: 0.5rem;
  width: 100%;
  padding: 14px;
  background: linear-gradient(135deg, var(--accent), #e6b800);
  color: var(--primary);
  font-weight: 700;
  font-size: 1rem;
  border: none;
  border-radius: var(--radius);
  cursor: pointer;
  transition: var(--transition);
  font-family: inherit;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.12);
}

#login-form button:hover:not(:disabled),
#register-form button[type="submit"]:hover:not(:disabled),
.auth-card button[type="submit"]:hover:not(:disabled) {
  opacity: 0.95;
}

#login-form button:disabled {
  opacity: 0.7;
  cursor: not-allowed;
}

footer {
  text-align: center;
  padding: 20px;
  background: rgba(0, 0, 0, 0.2);
  color: var(--text);
}

@media (max-width: 768px) {
  .nav-bar {
    padding: 0 1rem;
    height: 70px;
  }

  .auth-shell {
    padding: 130px 1rem 1.5rem;
  }

  .auth-card,
  .login-panel {
    padding: 1.75rem;
  }
}