/* 海纳公共登录组件样式（首页 + 海域图鉴共用） */
.topbar-auth {
  background: #2FD4DA;
  color: #042E2B;
  border: none;
  border-radius: 6px;
  padding: 8px 16px;
  font-size: 14px;
  font-weight: 600;
  cursor: pointer;
  white-space: nowrap;
}
.topbar-auth:hover { background: #3FE0E6; }
.topbar-auth.logged { background: transparent; color: #FFFFFF; border: none; padding: 0; }
.topbar-auth .topbar-avatar {
  width: 30px;
  height: 30px;
  border-radius: 50%;
  object-fit: cover;
  vertical-align: middle;
  margin-right: 8px;
}

/* 登录/注册弹窗 */
.auth-modal {
  position: fixed;
  inset: 0;
  background: rgba(4, 12, 20, 0.8);
  display: none;
  align-items: center;
  justify-content: center;
  z-index: 1600;
}
.auth-modal.open { display: flex; }
.auth-box {
  width: 340px;
  max-width: 92vw;
  background: #0E2540;
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: 12px;
  padding: 24px;
  display: flex;
  flex-direction: column;
  gap: 12px;
}
.auth-box h2 { font-size: 20px; font-weight: 700; color: #E6EDF3; }
.auth-input {
  background: #081A2C;
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: 6px;
  padding: 11px 12px;
  color: #E6EDF3;
  font-size: 14px;
  outline: none;
  font-family: inherit;
}
.auth-input::placeholder { color: #6B7A8C; }
.auth-input:focus { border-color: #2FD4DA; }

/* 忘记密码链接 */
.auth-forgot {
  font-size: 13px;
  color: #2FD4DA;
  text-decoration: none;
  text-align: right;
}
.auth-forgot:hover { text-decoration: underline; }

/* 注册头像选择器（圆形头像框 + 预览） */
.avatar-picker {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  padding: 4px 0;
}
.avatar-circle {
  width: 84px;
  height: 84px;
  border-radius: 50%;
  border: 2px dashed rgba(255, 255, 255, 0.4);
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  overflow: hidden;
  background: #123A5F;
  position: relative;
}
.avatar-circle:hover { border-color: #2FD4DA; }
.avatar-placeholder { font-size: 28px; color: rgba(255, 255, 255, 0.5); }
.avatar-preview {
  width: 100%;
  height: 100%;
  object-fit: cover;
  position: absolute;
  inset: 0;
}
.avatar-picker-tip { font-size: 12px; color: #A8B8C8; }
.auth-actions { display: flex; gap: 10px; }
.auth-submit {
  flex: 1;
  background: #2FD4DA;
  color: #042E2B;
  border: none;
  border-radius: 6px;
  padding: 11px;
  font-size: 15px;
  font-weight: 600;
  cursor: pointer;
}
.auth-submit:disabled { opacity: 0.6; }
.auth-cancel {
  padding: 11px 16px;
  background: transparent;
  color: #A8B8C8;
  border: 1px solid rgba(255, 255, 255, 0.2);
  border-radius: 6px;
  cursor: pointer;
  font-size: 14px;
  white-space: nowrap;
}